REGION	WDID	STATUS	SANITARY_SEWER_SYSTEM_NAME	AGENCY_NAME	SPILL_EVENT_ID	SPILL_REPORT_VERSION	SPILL_STATUS	CERTIFIED_BY	CERTIFIER_TITLE	SUBMIT_DRAFT_DATE	INITIAL_CERTIFICATION_DATE	FINAL_CERTIFICATION_DATE	SPILL_TYPE	SPILL_LOCATION_NAME	DATE_AND_TIME_THE_ENROLLEE_WAS_NOTIFIED_OF_SPILL	OPERATOR_ARRIVAL_TIME	ESTIMATED_SPILL_START_DATE_AND_TIME	DATE_TIME_ENROLLEE_NOTIFIED_CALOES	ASSIGNED_CONTROL_NUMBER	TECHNICAL_REPORT_UPLOAD_DATE	DESCRIPTION_PHOTOGRAPHS_AND_GPS_COORDINATES_OF_THE_SYSTEM_LOCATION_WHERE_THE_SPILL_ORIGINATED	LATITUDE	LONGITUDE	APPEARANCE_POINTS	IF_OTHER_APPEARANCE_POINT_DESCRIBE	ADDITIONAL_SPILL_APPEARANCE_POINT(S)_EXPLANATION	ESTIMATED_TOTAL_SPILL_VOLUME_EXITING_THE_SYSTEM_(GAL)	DESCRIPTION_AND_PHOTOGRAPHS_OF_SPILL_EXTENT_AND_SPILL_BOUNDARIES	DID_SPILL_REACH_DRAINAGE_CONVEYANCE_SYSTEM_(YES_NO)?	DESCRIPTION_OF_THE_DRAINAGE_CONVEYANCE_SYSTEM_TRANSPORTING_THE_SPILL_AND_SYSTEM_ENTRY_LOCATION(S)	ESTIMATED_SPILL_VOLUME_FULLY_RECOVERED_FROM_DRAINAGE_CONVEYANCE_SYSTEM_(GAL)	ESTIMATED_SPILL_VOLUME_REMAINING_WITHIN_DRAINAGE_CONVEYANCE_SYSTEM_(GAL)	DESCRIPTION_AND_PHOTOGRAPHS_OF_ALL_DISCHARGE_POINT(S)_INTO_THE_SURFACE_WATER	ESTIMATED_SPILL_VOLUME_THAT_DISCHARGED_TO_SURFACE_WATERS_(GAL)	ESTIMATED_TOTAL_SPILL_VOLUME_RECOVERED_(GAL)	SPILL_DESTINATION(S)	IF_OTHER_SPILL_DESTINATION_DESCRIBE	DESCRIPTION_OF_THE_SPILL_EVENT_DESTINATION(S)	COORDINATES_AVAILABLE_(YES_NO)?	LATITUDE_1	LONGITUDE_1	LATITUDE_2	LONGITUDE_2	LATITUDE_3	LONGITUDE_3	LATITUDE_4	LONGITUDE_4	SPILL_END_DATE_AND_TIME	DESCRIPTION_OF_SPILL_VOLUME_ESTIMATIONS_CALCULATIONS	DESCRIPTION_OF_THE_METHODOLOGY(IES)_FOR_ESTIMATIONS_OF_SPILL_START_AND_END_TIME	SPILL_CAUSE(S)	IF_OTHER_CAUSE_DESCRIBE	SYSTEM_FAILURE_LOCATION	IF_OTHER_FAILURE_LOCATION_DESCRIBE	DESCRIPTION_OF_THE_PIPE_MATERIAL_AT_THE_FAILURE_LOCATION 	IF_OTHER_PIPE_MATERIAL_DESCRIBE	ESTIMATED_AGE_OF_PIPE_MATERIAL_AT_THE_FAILURE_LOCATION	DESCRIPTION_OF_THE_IMPACT_OF_THE_SPILL	WAS_THE_SPILL_ASSOCIATED_WITH_A_STORM_EVENT_(YES_NO)?	SPILL_RESPONSE_ACTIVITIES	IF_OTHER_RESPONSE_ACTIVITY_DESCRIBE	DESCRIPTION_OF_SPILL_RESPONSE_ACTIVITIES	SPILL_CORRECTIVE_ACTION	IF_OTHER_CORRECTIVE_ACTION_DESCRIBE	DESCRIPTION_OF_SPILL_CORRECTIVE_ACTION	SCHEDULE_OF_MAJOR_MILESTONES	SPILL_RESPONSE_COMPLETION_DATE	DETAILED_NARRATIVE_OF_INVESTIGATION_AND_INVESTIGATION_FINDINGS_OF_CAUSE_OF_SPILL	IS_THE_ENROLLEE_CONDUCTING_AN_ONGOING_INVESTIGATION_(YES_NO)?	REASONS_FOR_AN_ONGOING_INVESTIGATION	EXPECTED_DATE_OF_COMPLETION_OF_INVESTIGATION	NAME_OF_RECEIVING_WATER_BODY(S)	TYPE_OF_RECEIVING_WATER_BODY(S)	IF_OTHER_RECEIVING_WATER_DESCRIBE	DESCRIPTION_OF_THE_WATER_BODY(S)	OBSERVED_IMPACTS_ON_AQUATIC_LIFE	PUBLIC_ACCESS_IMPACT	IF_OTHER_PUBLIC_ACCESS_IMPACT_DESCRIBE	RESPONSIBLE_ENTITY_FOR_CLOSING_RESTRICTING_USE_OF_WATER_BODY	NUMBER_OF_DAYS_CLOSED_RESTRICTED_AS_A_RESULT_OF_SPILL	WAS_SPILL_LOCATED_WITHIN_1000_FEET_OF_A_MUNICIPAL_SURFACE_WATER_INTAKE_(YES_NO)?	WERE_WATER_QUALITY_SAMPLES_COLLECTED_(YES_NO)?	IDENTIFY_SAMPLE_LOCATIONS	IDENTIFY_PARAMETERS_THE_WATER_QUALITY_SAMPLES_WERE_ANALYZED_FOR	LOCAL_REGULATORY_ENFORCEMENT_ACTION_TAKEN	IDENTIFIED MODIFICATIONS PREVENT SPILL OCCURRENCES	ADJUSTED_SCHEDULE/METHOD_OF_PREVENTIVE_MAINTENANCE	PLANNED_REHABILITATION_OR_REPLACEMENT_OF_SANITARY_SEWER_ASSET	INSPECTED_REPAIRED_ASSET(S)_OR_REPLACED_DEFECTIVE_ASSET(S)	CAPITAL_IMPROVEMENTS	DOCUMENTATION_VERIFYING_IMMEDIATELY_IMPLEMENTED_SYSTEM_MODIFICATIONS_AND_OPERATING/MAINTENANCE_MODIFICATIONS	DESCRIPTION_OF_SPILL_RESPONSE_ACTIVITIES_MODIFICATIONS	ONGOING_INVESTIGATION_EFFORTS	
5S	5SSO11048	Active	San Andreas CS	San Andreas SD	888638	1.0	Work In Progress						Monthly Category 3 Spill	675 Oak Rd, San Andreas, Ca 95249	06/05/2023 07:41	06/05/2023 07:41	06/05/2023 05:44				Come from MH 3-A on sewer map	38.20219	-120.68835	Gravity Mainline; Manhole			80	50 radius from MH 3A	N						50	Paved Surface; Unpaved Surface		50 radius from MH 3A	N									06/06/2023 07:54	10% vac truck capacity	10% vac truck capacity	Debris-Rags; Root Intrusion		Gravity Mainline		Polyvinyl Chloride (PVC)		50	odor	N	Cleaned Up (specify below); Property Owner Notified		abcd	Added Sewer to Preventive Maintenance Program				06/06/2023 07:54	abcd		abcd	06/06/2023 13:54														abcd	abcd	abcd	abcd	abcd	abcd	abcd	abcd	abcd	
2	2SSO10110	Active	Los Altos City CS	Los Altos City	888639	1.0	Certified	Aida Fairman	Director of Environmental Services and Utilities		10-JUN-23	10-JUN-23	Monthly Category 3 Spill	112 E. Edith Ave.	06/05/2023 09:01	06/05/2023 09:18	06/03/2023 09:00				Spill location was out of a clean out in the gutter where Cielito Dr. and E. Edith Ave. instersect.	37.38141	-122.11081	Other (specify below)	Clean out access point for City mainline.		843	Photos are of spill location including the final destination of the spill and photo of the spill location after the cleanup.	Y	Spill reached our storm drain system along E. Edith Ave. 	843				843	Drainage Conveyance System that discharges to surface water		Spill traveled approximately 20ft. to drain inlet E2F-609.  There it entered our storm drain system.  Once in the storm drain system it traveled down and had stopped prior to storm drain manhole E3D-502, approximately 1808ft.	Y	37.38141	-122.10455							06/05/2023 10:06	1808ft. (L) X 1.5ft. (W) X 0.0416ft. (D)= 112.82 (CF) 112.82 (CF) X 7.48= 843 gallons.	Spill Calculation Worksheet.	Root Intrusion		Gravity Mainline		Vitrified Clay		70	Spill entered into the storm drain however was captured and returned to sewer system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Crews found the downstream storm drain manhole that didn't have any flow.  There they set up the vacuum truck to capture any further spill.  Water was then used to wash out the storm drain, and the water captured and removed.  Debris in the gutter where the spill originated was removed and the gutter wash down the gutter. 	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Sewer line was televised to determine cause of the spill.  Line will be root foamed and added to our 90 day preventive maintenance list.		06/05/2023 12:00	Line was televised after the spill was cleared and cleaned.  Spill cause looks to be root intrusion between manhole E2S-603 and cleanout E2S-602. 		Not at this time.	06/05/2023 13:47														N/A	Line added to our 90 day preventive maintenance list.  Attachment 1	Line added to our 90 day preventive maintenance list.  Attachment 1	Not at this time.	Not at this time.	Not at this time.	See attachment.	Not at this time.	Not at this time.	
3	3SSO10244	Active	Carmel Area Wastewater District Collection System	Carmel Area Wastewater District	888690	1.0	Certified	Daryl Lauer	Collections Supervisor		06-JUL-23	06-JUL-23	Monthly Category 3 Spill	HWY 1 & Point Lobos	06/03/2023 08:02	06/03/2023 08:33	06/02/2023 07:47				Spill originated from Vault 17A on district force main, on west side of HWY 1 just north of the entrance to Point Lobos State Park	36.518631	-121.934318	Force Main	Spill appeared from Vault 17A, the leak emanated from a cracked fitting on force main flush valve wye	none	357	Spill ran downhill to the dirt and grass area along west side of hwy.	N						0	Unpaved Surface		Spill ran downhill to the dirt and grass area along west side of hwy.	Y	36.518631	-121.934318	36.51868	-121.934248					06/03/2023 08:40	Calculated wetted area and soil moisture content for volume, and used SCADA pump run times for duration of active spilling during pump cycles for period of spill and no spill timeframe.	Calculated wetted area and soil moisture content for volume, and used SCADA pump run times for duration of active spilling during pump cycles for period of spill and no spill timeframe. The assumption made was the spill possibly started just after the reference of last no spill testimony	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure		Air Relief Valve (ARV)/ Blow-Off Valve (BOV); Force Main		Polyvinyl Chloride (PVC)		20	The spill ran downhill to the dirt and grassy area along western HWY 1 roadside. 	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow		Pumps shut off at up stream pump station to stop spill from growing. Once onsite, vacuum truck used to capture spill effects and hydro excavate area around vault to expose the flanges where force main changes material from HDPE to Schedule 40 PVC that connected to flush valves inside Vault 17A. The PVC schedule 40  wye  fitting had a crack in the webbing area of branch that created spill.	Adjusted Schedule/Method of Preventive Maintenance; Repaired Facilities or Replaced Defect		Area hydro excavated and vacuumed to make repair of broken force main fitting in Vault 17A		06/05/2023 10:35	Upon excavating the appurtenance, the defective part was identified and removed and replaced with heavier duty components to prevent further incidents at this location. Other vault locations along force main will be evaluated for similar components that would likely fail the same way. 		Engineering firm retained to evaluate force main condition and make necessary upgrades	06/05/2023 10:35														NA	This event caused awareness of potential problems with other vaults along this force main. Installing contractor two decades ago used some schedule 40 PVC fittings to tie in flush valves. 	Will now assess whether other vaults along force main have same weaknesses of schedule 40 PVC fittings	The rest of force main will be evaluated for same weaknesses	Repaired force main schedule 40 PVC damage with schedule 80 PVC fittings, from flange to flange on HDPE force main	Engineering firm retained to evaluate force main condition and make necessary upgrades	Repaired force main schedule 40 PVC damage with schedule 80 PVC fittings, from flange to flange on HDPE force main	Repaired force main schedule 40 PVC damage with schedule 80 PVC fittings, from flange to flange on HDPE force main	Engineering firm retained to evaluate force main condition and make necessary upgrades	
9	9SSO10654	Active	City of Lemon Grove CS	Lemon Grove City	888694	1.2	Certified	Israel Murguia	Public Works Director		14-AUG-23	14-AUG-23	Monthly Category 3 Spill	2930 Main St	06/02/2023 09:05	06/02/2023 09:40	06/02/2023 06:20				Blockage occurred in pipe segment 385.   GPS coordinates 32.738724,-117.031708 	32.73728	-117.03156	Lateral Clean Out (Private)			235	Spill discharged from private lateral cleanout located on South side of house.  Spill pooled in unpaved lawn area and exited property East onto Main st.  Discharge was contained in the catch-basin at the South West corner of Main St and Burnell Av	Y	Curb and Gutter	235				235	Drainage Conveyance System		Catch-basin located at the South West corner of Main St and Burnell Av GPS 32.736747, -117.031506										06/02/2023 10:15	Spill volume estimation was calculated based on duration of spill multiplied by estimated rate of discharge	Spill start was reported by the property owner.  Spill end time was observed.	Other (specify below)	Lateral liner protruding into sewer main	Gravity Mainline		Vitrified Clay		76	Temporary closure of public sidewalk and private walkway.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		General location of obstruction was identified and cleared from sewer main relieving surcharge condition and restoring flow. Discharge was contained within catch basin at its furthest point of travel.  Vacuum truck staged at catch basin and impacted areas washed down and sanitized.  All captured water was returned to the sewer system. 	Inspected Sewer Using CCTV to Determine Cause		CCTV to determine cause, 6/5/23.  Private lateral liner protruding into sewer main.  Excess liner removed from sewer main, 6/5/23		06/05/2023 12:00	CCTV to locate defect and determine cause of blockage and excess protruding liner removed from sewer main completed 6/5/23.		N/A	06/05/2023 12:00														N/A	N/A	N/A	N/A	Inspected 6/5/23	N/A	N/A	N/A	N/A	
4	4SSO10362	Active	Alhambra City CS	Alhambra City	888698	1.0	Work In Progress						Category 1 Spill	1010 E. BEACON	06/06/2023 08:21	06/06/2023 08:45	06/03/2023 11:00	06/06/2023 10:02	23-3693			34.09593	-118.11317	Manhole			24960		Y		250	24710		24710	250	Drainage Conveyance System; Paved Surface		The spill reached Alhambra Wash which discharges to the Rio Hondo Spreading Grounds	Y	34.08606	-118.10899							06/06/2023 09:20	SCADA records was used to determine sewer flow at the location.  Also, eyeball estimation was used to confirm the flow rate. 	Alhambra resident was interviewed and verified the start time.  The manhole was located in an isolated area and resident recalled when it first started.	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline; Manhole		Cast Iron		80	The spill reached a City owned storm drain which discharged to Alhambra Wash (concrete channel), which does not have public access.  The spill flowed to the Rio Hondo which is a tributary to LA River; however it did not reach the LA River because flow from the Rio Hondo is collected at the Spreading Grounds for groundwater recharge.	N	Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Once the sewer crew was notified of the SSO, upon arrival the active flow was diked using dirt.  The storm drains was protected with socks and covers.	Adjusted Schedule/Method of Preventive Maintenance		The main line was CCTV'd by a contractor, Propipe and was found to have buildup.  The line is scheduled for high pressure cleaning.  A Smart Cover was installed at the manhole to immediately notify staff if the flow level is rising.  The line is scheduled to be cleaned every month.	SMART COVER installed.    Line scheduled for cleaning. Routine Maintenance Changed to Monthly.	06/06/2023 11:06	Roots, grease, excessive wipes and pipe shrinkage due to buildup was discovered by contractor and staff.	N			Rio Hondo/LA River	Other (specify below)	Flow discharged to Alhambra Wash (concrete channel) which does not have public access.   Flow from Alhambra Wash discharges to the Rio Hondo Spreading Grounds.		Impacts on aquatic life was not observed because access is prohibited. 	Other (specify below)	The Alhambra Wash and Rio Hondo Spreading Grounds do not have public access	LA County Flood Control District	0	Y	N												
4	4SSO10362	Active	Alhambra City CS	Alhambra City	888699	1.0	Amended	David Dolphin	Deputy Director of Utilities	07-JUN-23	20-JUN-23	20-JUN-23	Category 1 Spill	1010 E. BEACON	06/06/2023 08:21	06/06/2023 08:30	06/06/2023 00:00	06/06/2023 10:02	23-3693		OVERFLOW AT MANHOLE. OVERFLOW NEAR END OF VERY NARROW STREET WITH VERY LIMITED PEDESTRIAN TRAFFIC. NO PRIVATE PROPERTY WAS DAMAGED. CLEAR BLOCKAGE AND DISINFECT ALL AFFECTED AREA AND PROPERLY DISPOSE OF ALL WASH WATER.	34.0959237	-118.113189	Manhole			24960	OVERFLOW AT MANHOLE. OVERFLOW HAPPEN NEAR THE END OF A VERY NARROW STREET. NO PEDESTRIAN TRAFFIC IN AREA THAT WAS AFFECTED. CLEANED AND DISINFECTED PROPERLY.	Y	STAINED GROUND BELOW OUTFALL AND VERY SMALL AMOUNT OF WATER COMING OUT. CONTAINED ABOUT 2 MIN FROM ARRIVAL.	250	24710	NO PHOTOGRAPHS TAKEN, UNABLE TO ACCESS CHANNEL. MADE PROPER NOTIFICATIONS.	24710	250	Drainage Conveyance System; Paved Surface		The spill reached Alhambra Wash which discharges to the Rio Hondo Spreading Grounds	Y	34.08606	-118.10899							06/06/2023 09:20	SCADA records was used to determine sewer flow at the location.  Also, eyeball estimation was used to confirm the flow rate. 	Alhambra resident was interviewed and verified the start time.  The manhole was located in an isolated area and resident recalled when it first started.	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Cast Iron		80	The spill reached a City owned storm drain which discharged to Alhambra Wash (concrete channel), which does not have public access.  The spill flowed to the Rio Hondo which is a tributary to LA River; however it did not reach the LA River because flow from the Rio Hondo is collected at the Spreading Grounds for groundwater recharge.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	The affected area was disinfected and the wash water was collected and discharged to the Sanitary Sewer.	Once the sewer crew was notified of the SSO, upon arrival the active flow was diked using dirt.  The storm drains was protected with socks and covers. Surrounding area was cleaned.	Adjusted Schedule/Method of Preventive Maintenance; Plan Rehabilitation or Replacement of Sewer		The main line was CCTV'd by our contractor, Propipe, and was found to have buildup.  The line is scheduled for high pressure cleaning.  A Smart Cover was installed at the manhole to immediately notify staff if the flow level is rising.  The line is scheduled to be cleaned every month.	SMART COVER installed.    Line scheduled for cleaning.   Routine Maintenance Changed to Monthly.	06/06/2023 11:27	Roots, grease, excessive wipes and pipe shrinkage due to buildup was discovered by the contractor when a push camera was used to video the line. Staff observed grease and roots when cleaning the line.	N			Rio Hondo/LA River	Other (specify below)	Flow discharged to Alhambra Wash (concrete channel) which does not have public access.   Flow from Alhambra Wash discharges to the Rio Hondo Spreading Grounds.		Impacts on aquatic life was not observed because access is prohibited. 	Other (specify below)	The Alhambra Wash and Rio Hondo Spreading Grounds do not have public access.	LA County Flood Control District	0	Y	N												
2	2SSO10179	Active	San Jose City CS	San Jose City	888705	1.0	Certified	Ben Nguyen	Senior Engineer	08-JUN-23	20-JUN-23	20-JUN-23	Category 1 Spill	2895 Postwood Drive, San Jose CA 95132	06/05/2023 21:35	06/05/2023 22:15	06/05/2023 20:35	06/08/2023 17:11	23-3763		The spill appearance point was a lower private lateral cleanout for the property at 2895 Postwood Dr. Sewage discharged from the cleanout and traveled along the property into the street curb/gutter. 	37.41163	-121.87808	Lateral Clean Out (Private)			240	The spill discharged from the cleanout and traveled along the property into the street curb/gutter. From the the curb/gutter, the sewage traveled along the street and reached a nearby storm drain inlet. This storm drain inlet is connected to the City of San Jose's municipal storm sewer system. The sewage traveled within the storm system to a storm outfall discharge point along Berryessa Creek. Finally, the sewage reached Berryessa Creek while discharging from the storm outfall. 	Y	The spill reached a nearby storm drain inlet along Postwood Dr approximately 57 ft from the spill appearance point. This storm drain inlet is connected to the City of San Jose's municipal storm sewer system. The sewage traveled within the storm system to a storm outfall discharge point along Berryessa Creek. 	0	53	The sewage reached Berryessa Creek while discharging from the storm system outfall. The location of the storm outfall along Berryessa Creek is approximately at 37.411257, -121.880045.	53	187	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		The spill (sewage) traveled along the front lawn and driveway from the lower lateral cleanout at 2895 Postwood Dr (spill appearance point). The front lawn and driveway spill are identified in 1.d. and 1.e. The spill reached and traveled along the curb and gutter, then entered City's storm inlet and drainage system. The location of the storm drain inlet is identified in 1.f. and 1.g.  The spill reached the nearby surface water (Berryessa Creek) through a storm outfall discharge point. The storm outfall discharge point is identified in 1.h. and 1.i.	Y	37.411642	-121.878075	37.411556	-121.878306	37.411306	-121.880037			06/06/2023 01:00	The spill volume for the SSO event was estimated using a flow rate and duration method. The First Responder documented a video of the spill appearance point upon arrival.  Video footage was used to estimate a flow rate for the spill.  The Responder gathered additional information from the Reporting Party (RP) to determine an approximate start time which was assumed to be an hour prior to the RP calling City's Dispatch/Call Center. The estimated flow rate was multiplied by the estimated spill duration yielded the total spill volume. To estimated the spill volume cleaned up and recovered, measurements were taken of the spill on land and within the storm drain conveyance system.	The methodology used to estimate the total spill volume for the SSO event was the flow rate and duration method. Video taken at the spill appearance point was compared to a controlled test overflow rate using a similar lower lateral cleanout lid. The First Responder gathered information from the Reporting Party (RP) to assume a reasonable start time. A total spill volume was estimated using both a flow rate and estimated duration. Recovered volume was estimated based on recorded measurements of the spill prior to cleanup. The measurements included affected areas on land and the spill dimensions contained within the stormwater drainage conveyance system. 	Debris-General		Gravity Mainline		Vitrified Clay		60	The spill required cleanup of the front lawn and driveway for the private residence at 2895 Postwood Dr. In addition, it was estimated that 53 gallons of raw sewage reached Berryessa Creek. Based on the visual inspection of the Creek the following day on 6/6/2023, there were no impacts to the Creek or wildlife identified. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		The First Responder placed sandbag at the storm drainage system entry point and inside a storm drain manhole to contain as much of the spill as possible.  Crew saw moving water in the storm drain system and followed the flow the outfall.  Crew noticed that location of outfall was not accessible for equipment.  Crew was able to see the outfall and moving water in the creek.  Thus, crew assumed that all of the spill that reached the Creek was already lost.  Crew set up equipment to clear the plug and performed cleaning up of the area and storm drain system as much as possible. Crew washed down and recovered all of the sewage and induced water from the furthest downstream containment point.  All of the spill on land and spill contained within the storm drain system was cleaned up.	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause		Corrective actions for the spill include the following:  1. Conduct FOG outreach by distributing Grease Flyers to the nearby residents. 2. Revise problem pipe mainline cleaning cycle from 8 years to 4 years. 3. Re-CCTV the problem pipe mainline to assess issues in 6 Months to identify potential blockages or debris buildups. 4. Identify any root intrusion in nearby sanitary pipe segments and add them to the City's Root Control Program. 5. Revaluate access to the storm drain outfall discharge point along Berryessa Creek.	1. Conduct FOG outreach by distributing Grease Flyers to the nearby residents. 2. Revise problem pipe mainline cleaning cycle from 8 years to 4 years. 3. Re-CCTV the problem pipe mainline to assess issues in 6 Months to identify potential blockages or debris buildups.	06/06/2023 18:00	While the Responding Crew cleared the blockage in the plugged sanitary mainline, the Crew documented their findings. A pipe basket was used to collect the debris that was causing the blockage of the mainline. Crew collected what appeared to be a large piece of conglomerate of concrete and asphalt which was likely the cause of the blockage. After conducting a follow up CCTV of the sanitary mainline, there were no other significant observations or defects in the pipe that would've contributed to the blockage. Therefore, it was determined that the large piece of debris was the primary cause of the blockage and spill.	N			Berryessa Creek	River			Per the visual inspection and Creek walk conducted on 6/6/2023, there were no observed visual impacts to aquatic life.	Other (specify below)	No public access was impacted as a result of the spill.	Santa Clara Valley Water District	0	N	N												
					888714	1.0	Work In Progress						Category 1 Spill	Ventura Blvd Between Wood Road and Las Posas on Utility Road	06/07/2023 13:15	06/07/2023 13:15	12/15/2022 08:30	06/07/2023 15:49	233738		We had an air relief valve that failed caused raw sewage to spill on the ground. Sewage traveled north about 715 feet to a storm drain inlet that discharges into the Camarillo Hills Drain.	34.215625	119.079116	Force Main			5000	Spill traveled approximately 715 feet north of initial spill location	Y	Approximately 50-100 gallons entered the Camarillo Hills Drain.	0	100		0	0	Drainage Conveyance System that discharges to surface water; Unpaved Surface		We had an air relief valve that failed causing sewer water to run onto the ground.  Start location of spill is 1D and 1E and end locations is 1F and 1G from this form.	Y	34.215652	119.079116	34.215609	119.081376					06/07/2023 13:16	Spill volume was estimated by measuring the Length x width x depth x 7.5 (cubic feet to gallons).	 	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure		Air Relief Valve (ARV)/ Blow-Off Valve (BOV); Force Main		Ductile Iron	The pipe is ductile iron and there is no issue with the pipe.  The air relief valved failed. 	29		N	Cleaned Up (specify below); Other Enforcement Agency Notified; Property Owner Notified																																		
4	4SSO10357	Active	Camarillo Water Reclam. Plant CS	Camarillo Sanitary District	888717	1.0	Certified	Darrin Carter	Water Reclamation Superintendent	08-JUN-23	20-JUN-23	20-JUN-23	Category 1 Spill	Ventura Blvd Between Wood Road and Las Posas on Utility Road	06/07/2023 13:15	06/07/2023 13:15	12/15/2022 08:00	06/07/2023 15:49	233738		We had a failure of an air relief valve on our 18  force main.	34.215652	119.079116	Force Main			5000	The spill traveled 715 feet North of initial spill location.	Y	The spill could have entered the Camarillo Hills Drain. Due to rain the previous evening it is hard to determine if any sewer water entered the storm drain.	0	0	The Camarillo Hill Drain which becomes Revolon Slough, then goes to Calleguas Creek. The surrounding dirt area captured the majority of the sewer water. 	0	0	Drainage Conveyance System that discharges to surface water	The Camarillo Hills storm drain, discharges into Revlon Slough.  Based on our investigation it looks like very little if any material entered the storm drain.  This is based on the discharge locations that did not have any of the staining/growth that was present on the dirt.  	During our routine maintenance inspections, we found that a failed air relief valve caused a sewer spill that went into the Camarillo Hills storm drain. The start GPS coordinates are 34.215652, -119.079116 and the ending of the spill GPS coordinates are 34-215609, -119.081376. These coordinates represent the full spread and reach of the spill.	Y	34.215652	119.079116	34.215609	119.081376					06/07/2023 12:08	In order to calculate the spill volume, we used two different methods. The first method was breaking the spill up into two sections and measuring the length of the spill x the width of the spill x the depth of the spill and converting that to gallons. The second method used was our pump station SCADA trend to determine the run time of the pumps since the last time the air relief had been checked. 1st section- 158 ft x 8ft x .33ft x 7.48= 3120 gallons 2nd section- 557 ft x 2 ft x .33 ft x 7.48= 2749 gallons for a total of 5959 gallons.	We used our last inspection date (12/15/2022) as the start time of the spill.  The end date of the spill (6/7/2023) was the date we found the spill.  Last date of inspection was Dec. 15, 2022. SCADA shows the pump would run for 3.36 hr./day x 174 days x 10 gal/hr.= 5846 gallons	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure		Air Relief Valve (ARV)/ Blow-Off Valve (BOV)		Polyvinyl Chloride (PVC)		11	The spill was on private property where the Sanitary District has an easement. The area is not in a regularly traveled area. The spill did not affect the public or the property owner.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Returned Portion of Spill to Sanitary Sewer System	The standing spill material was recaptured, and the soiled dirt was removed. The failed air relief was replaced.	The failed air relief valve was immediately closed. Sandbags were placed to prevent flow into storm drains. The sanitary departments vacuum truck was used to pick up any standing water and a backhoe was used to remove any soiled dirt.	Adjusted Schedule/Method of Preventive Maintenance		The frequency of preventive maintenance was adjusted, and the visual inspection of the air relief valves was adjusted to a bi-monthly basis. We also have a containment system to capture anything that would release from the air relief valve and can hold approximately 30 days of material if we had a spill.  We also replaced the 2 other air relief valves on the line.	The above activities are complete.	06/09/2023 06:40	After interviewing staff, it was determined that the inspection of the air relief valves should occur on a more frequent basis.  The line is not in area that is normally traveled, so staff has been directed to check these valves on a more regular basis and to keep better records on when the valves are inspected and checked.  The air relief valves were 11 years old, and the PVC material was old and brittle.  This is something that should have been identified on previous inspections and corrected. 	N			Revlon Slough	Slough	The Camarillo Hills storm drain, discharges into Revlon Slough.  Based on our investigation it looks like very little if any material entered the storm drain.  This is based on the discharge locations that did not have any of the staining/growth that was present on the dirt.  		There is no aquatic life in the storm drain.  This is based on the biological assessment that was done in this area.	Other (specify below)	The spill area is on private property. 	N/A	0	N	N												
9	9SSO10710	Active	USMC Base, Camp Pendleton CS	US Marine Corps Base Camp Pendleton	888719	1.0	Certified	John Simpson	Director, Office of Water Security	08-JUN-23	22-JUN-23	22-JUN-23	Category 1 Spill	MH 11Y126 near 145-199 Chasisson Drive	06/07/2023 12:30	06/07/2023 13:30	06/07/2023 11:30	06/07/2023 15:30	23-3734		MH 11Y126 overflowed into a storm drain and traveled to the San Onofre off ramp of the 5-freeway open storm drain.	33.386368	-117.582787	Manhole			3000	MH 11Y126 overflowed into a storm drain and traveled to the San Onofre off ramp of the 5-freeway open storm drain into the dirt.	Y	MH 11Y126 overflowed into a storm drain and traveled to the San Onofre off ramp of the 5-freeway open storm drain.	300	2700	MH 11Y126 overflowed into a storm drain and traveled to the San Onofre off ramp of the 5-freeway open storm drain into dirt.	3000	300	Drainage Conveyance System; Unpaved Surface		Spill started at MH 11Y126 Lat 33.390002, Long -117.579281. Spill went into storm drain at Basilone and Chaisson and followed 5 freeway exit storm drain and ended out of open storm drain GPS Lat 33.387431, Long -117.580848.	Y	33.386368	-117.582787							06/07/2023 13:20	Visual flow monitoring rate of 25 gpm X 110 min = 2750using reference sheet estimating sewer spills from manholes in SSORP.	Reported to Unity at 1220 hours. Response crew arrival on scene at 1300 hours. Discussion with personnel who reported spill identified that he noticed a leak at approximately 1130 and when he returned to investigate, determined it was wastewater. After making a berm and recovering 300 gallons, time spill ended was 1320 hours.	Debris-General; Debris-Rags; Fats, Oil and Grease (FOG)		Manhole		Concrete; Vitrified Clay		50	Perked into ground.	N	Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Berm made in gutter by storm drain and jetted mainline.	Added Sewer to Preventive Maintenance Program		Main line was jetted and added to list for preventative maintenance.	Main line was jetted and added to list for preventative maintenance.	06/07/2023 13:20	Main line was jetted and added to list for preventative maintenance. Debris and grease were observed during the jetting process.	N			Pacific Ocean	Other (specify below)	Spill went downhill towards the farmer�s field. From there, the closest waterbody it would discharge to is the Pacific Ocean		None.	Temporary Restricted Use		None.	0	N	N												
9	9SSO10710	Active	USMC Base, Camp Pendleton CS	US Marine Corps Base Camp Pendleton	888743	1.0	Certified	John Simpson	Director, Office of Water Security	11-JUN-23	22-JUN-23	22-JUN-23	Category 1 Spill	MH 10Y018	06/08/2023 17:45	06/08/2023 18:30	06/08/2023 17:45	06/11/2023 08:50	23-3809 		MH 10Y018 to storm drain at 530320 Fifth Street and Basilone. Jetted from 10Y0160 MH to 10Y018 MH through storm drain 53512.	33.3758809	-117.4783238	Manhole		MH 10Y018 to storm drain at 530320 Fifth Street and Basilone. Jetted from 10Y0160 MH to 10Y018 MH through storm drain 53512.	250	MH 10Y018 to storm drain at 530320 Fifth Street and Basilone. Jetted from 10Y0160 MH to 10Y018 MH through storm drain 53512.	Y	MH 10Y018 to storm drain at 530320 Fifth Street and Basilone. Jetted from 10Y0160 MH to 10Y018 MH through storm drain 53512.	30	220	MH 10Y018 to storm drain at 530320 Fifth Street and Basilone. Jetted from 10Y0160 MH to 10Y018 MH through storm drain 53512.	220	30	Drainage Conveyance System; Street/Curb and Gutter (2 3); Unpaved Surface		Lat 33.376916    Long -117.478454	Y	33.3758809	-117.4783238							06/08/2023 18:30	5 gal per minute x 45 min = 225gallons using City of San Diego reference sheet.  	UNITY received emergency call: 6-8-2023 1745hrs,   Date/Time Emergency Response Crew arrived on scene: 6-8-2023 1830hrs BOOSTER SHIFT ARRIVED TO ASSESS SITUATION.  Date/Time  Spill Ended: 6-8-2023 1830  	Other (specify below)	It�s believed the manhole collapse is from jetting pressure causing MH 10Y018 to fall into channel. Manhole pieces were removed by digging crew. Repairs are ongoing by contractor.	Force Main; Manhole		Cast Iron; Concrete; Vitrified Clay		60	Crews notified that manhole 10Y018 was leaking upon arrival they found that the discharge was running into the storm drain located on 5th and Basilone road. They constructed a berm to stop discharge entering storm drain. They recovered 30 gallons of the discharge from that position. As the main flow was diverted into adjacent manhole. 10Y017 stopping the discharge from running into storm drain. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Crews notified that manhole 10Y018 was leaking upon arrival they found that the discharge was running into the storm drain located on 5th and Basilone road. They constructed a berm to stop discharge entering storm drain. They recovered 30 gallons of the discharge from that position. As the main flow was diverted into adjacent manhole. 10Y017 stopping the discharge from running into storm drain. 	Repaired Facilities or Replaced Defect		Spill was reported prior to jetting. It�s believed the manhole collapse is from jetting pressure causing MH 10Y018 to fall into channel. Manhole pieces were removed by digging crew. running high lines from 53 area mess hall and 53599 barracks to remove flows Entering channel. Repairs are complete. 	Spill was reported prior to jetting. It�s believed the manhole collapse is from jetting pressure causing MH 10Y018 to fall into channel. Manhole pieces were removed by digging crew. running high lines from 53 area mess hall and 53599 barracks to remove flows Entering channel. Repairs are complete. 	06/08/2023 18:30	Spill was reported prior to jetting. It�s believed the manhole collapse is from jetting pressure causing MH 10Y018 to fall into channel. Manhole pieces were removed by digging crew. running high lines from 53 area mess hall and 53599 barracks to remove flows Entering channel. Repairs are complete. 	N			San Onofre Creek	Stream/Creek			None observed.	Temporary Restricted Use		None	0	N	N												
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	888744	1.0	Certified	Ameal McLaurin	Sewer Supervisor 2		12-JUN-23	12-JUN-23	Monthly Category 3 Spill	7236 Saroni Drive	06/02/2023 15:00	06/03/2023 08:00	06/07/2023 12:00				8  VCP Gravity Mainline in back yard easement was exposed by recent rainstorms, the main was slightly separated at the joints. Slow seepage at the joint was noted. The water soaked into the soil.	37.83705	-122.19392	Backflow Prevention Device; Gravity Mainline	8  VCP Gravity Mainline in back yard easement was exposed by recent rainstorms, resident had a 4  roof drainpipe, and that water eroded the soil around the main. The main was slightly separated at the joints. Slow seepage at the joint was noted. The water soaked into the soil, leading to creek bed.		112	8  VCP Gravity Mainline in back yard easement was exposed by recent rainstorms, resident had a 4  roof drainpipe, and that water eroded the soil around the main. The main was slightly separated at the joints. Slow seepage at the joint was noted. The water soaked into the soil, leading to creek bed.	Y	Sausal creek tributary.	112				0	Drainage Conveyance System; Unpaved Surface		8  VCP Gravity Mainline in back yard easement was exposed by recent rainstorms, the main was slightly separated at the joints. Slow seepage at the joint was noted. The water soaked into the soil adjacent the creek bed.		37.83705	-122.19392							06/07/2023 12:00	15' L x 8' W x .666' D x 7.48-Gal x .1875 = 112 Gallons	Resident reported a broken sewer pipe on 5/27/23 at 4:23 PM. He reported the problem to our agency on 6/2/23 at 3:00 PM, sewer crew arrived on 6/3/23 at 8:00 AM, they flushed the mainline, it was clear, CCTV inspection found a broken VCP pipe, a construction dig tag was created, construction crew dug and repaired the facilities on 6/7/23 at12:00 PM, ending the spill.	Collection System Maintenance Failure (specify below)	Erosion around 8  VCP Gravity Mainline was cause by previous rainstorms, causing the mainline to be slightly separated at the joint. 	Gravity Mainline		Vitrified Clay		90	8  VCP Gravity Mainline in back yard easement was exposed by recent rainstorms, the main was slightly separated at the joints. Slow seepage at the joint was noted. The water soaked into the soil adjacent the creek bed.	N	Other (specify below)	Repaired and replaced defect.	Unable to recover the spill, it soaked into the soil adjacent to the creek.	Repaired Facilities or Replaced Defect		CCTV inspection of the gravity Mainline showed that there was a defect in the mainline. Construction crew repaired the facilities, will continue replacing one more section of VCP pipe.		06/07/2023 12:00	CTV inspection of the gravity Mainline showed that there was a defect in the mainline. Construction crew repaired the facilities, will continue replacing one more section of VCP pipe.		 Construction crew repaired the facilities, will continue replacing one more section of VCP pipe.	06/12/2023 15:00														N/A	Construction crew repaired the facilities, will continue replacing one more section of VCP pipe.	N/A	Construction crew repaired the facilities, will continue replacing one more section of VCP pipe.	CCTV inspection of the gravity Mainline showed that there was a defect in the mainline. Construction crew repaired the facilities, will continue replacing one more section of VCP pipe.	N/A	CCTV inspection picture report and dig tag construction work order.	CTV inspection of the gravity Mainline showed that there was a defect in the mainline. Construction crew repaired the facilities, will continue replacing one more section of VCP pipe.	 Construction crew repaired the facilities, will continue replacing one more section of VCP pipe.	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	888747	1.2	Certified	Gerald Watson	Sanitation Wastewater Manager III		10-JUL-23	10-JUL-23	Monthly Category 3 Spill	1875 South Beverly Glen Boulevard	06/09/2023 12:38	06/09/2023 13:24	06/09/2023 12:38				The initial crew arrived at 1:24 P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.055258	-118.42374	Manhole			279	No pictures taken by staff.	N						279	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	It was estimated that approximately 279 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment, and subsequently they returned the entire back up amount to the sewer system.	Y	34.055258	-118.42374							06/09/2023 14:30	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.	Root Intrusion		Gravity Mainline		Concrete		95	It was estimated that approximately 279 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment, and subsequently they returned the entire back up amount to the sewer system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		The crew removed the blockage and the backup ceased at 2:30 PM. The cause of the blockage was attributed to root intrusion. It was estimated that approximately 279 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment, and subsequently they returned the entire back up amount to the sewer system.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Pipeline has been placed on a quarterly maintenance schedule.		06/09/2023 14:30	The cause of the blockage was attributed to root intrusion.		The cause of the blockage was attributed to root intrusion.	06/09/2023 14:30														No action required for this incident.	Pipeline has been placed on a quarterly maintenance schedule.		The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects.	The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects.	The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects.		A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage.	The cause of the blockage was attributed to root intrusion.	
4	4SSO10439	Active	Torrance City CS	Torrance City	888754	1.0	Certified	Chris Kuebert	Sanitation Services Manager		13-JUN-23	13-JUN-23	Monthly Category 3 Spill	calle mayor/via el chico	06/09/2023 09:10	06/09/2023 09:18	06/09/2023 09:10				Intersection of Calle Mayor and Via El Chico	33.81037	-118.37728	Manhole			80	overflow at manhole, no pictures taken	N	n/a	0				80	Street/Curb and Gutter (2 3)		SSO pooled in the street and gutter area of the SSO location, was contained to street area	N									06/09/2023 09:25	Visual BMP estimation- spill was recovered and returned to system, flow was restored	Spill start time was estimated as time of notification or close to it as call was immediatly relayed to crew in the field. End time was set by crew when blockage was clear.	Root Intrusion		Gravity Mainline		Vitrified Clay		48	SSO - no impact to property	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Crew restored flow to mainline, second crew cleaned up spill	Added Sewer to Preventive Maintenance Program		Will add to more frequent cleaning schedule, will video inspect		06/09/2023 10:00	Crew retrieved large amount of roots from the line. 		n/a	06/13/2023 10:00														n/a	n/a	n/a	n/a	n/a	n/a	We video inspect and go to a twice a year cleaning of the mainline that caused the SSO. More cleaning if video inspection shows more issues with the line.	n/a	n/a	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	888755	1.0	Certified	Ameal McLaurin	Sewer Supervisor 2		16-JUN-23	16-JUN-23	Monthly Category 3 Spill	2601 64th Avenue	06/09/2023 16:30	06/09/2023 17:00	06/09/2023 16:00				Gravity Mainline was blocked with grease deposition cement rock, and general debris, it spilled inside the basement of the building or structure through the washer drainpipe. It also spilled from rear yard property Mainline Lamp-Hole.	37.76955	-122.18611	Inside Building or Structure; Other Sewer System Structure	It spilled inside the basement of the building or structure through the washer drainpipe. It also spilled from rear yard property Mainline Lamp-Hole.		100	Gravity Mainline was blocked with grease deposition cement rock, and general debris, it spilled inside the basement of the building or structure through the washer drainpipe. It also spilled from rear yard property Mainline Lamp-Hole.	N	N/A	0				0	Building or Structure; Unpaved Surface		It spilled inside the basement of the building or structure through the washer drainpipe. It also spilled from rear yard property Mainline Lamp-Hole.	Y	37.76955	-122.18611							06/09/2023 11:45	Basement: 20' L x 11'W x .04' D x 7.48= 66 Gallons Outside Unpaved Surface: 9' L x 7' W x .5' D x 7.48-Gal x .1875 = 44 Gallons Total Spill: 66 + 44 = 100 Gallons	The start time 6/9/23 1600 HRS was confirmed by the reporting party, and the end time 6/10/23 1145 HRS was recorded by hydro flusher crew when they cleared up the blockage.	Debris-General; Fats, Oil and Grease (FOG); Other (specify below)	Grease deposition (FOG), Debris-General, and Cement rock.	Gravity Mainline		Cross-Linked Polyethylene (PEX)		1	It spilled inside the basement of the building or structure through the washer drainpipe. It also spilled from rear yard property Mainline Lamp-Hole to unpaved surface.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow	Provided claim packet to property owner to have a Restoration Company to clean up the place.	The property owner was provided with a claim packet to have a Restoration Company to clean up the place. It spilled inside the basement of the building or structure through the washer drainpipe. It also spilled from rear yard property Mainline Lamp-Hole.	Added Sewer to Preventive Maintenance Program		Gravity Mainline cause is still under investigation, CCTV inspection is planned. High Frequency Preventative Maintenance Program is scheduled.		06/10/2023 20:30	Gravity Mainline was blocked with grease deposition, cement rock, and general debris, it spilled inside the basement of the building or structure through the washer drainpipe. It also spilled from rear yard property Mainline Lamp-Hole. Hydro flusher crew removed grease, concrete rock and general debris blockage.		CCTV inspection is planned.	06/19/2023 14:45														N/A	High Frequency Preventative Maintenance Program is scheduled.	Schedule Service 6 Month Frequency.	 CCTV inspection is planned. Decision pending.	 CCTV inspection is planned. Decision pending.	CCTV inspection is planned. Decision pending.	Spill is still under investigation. Decision is pending.	Spill is still under investigation. Decision is pending.	CCTV inspection is planned.	
5S	5SSO10873	Active	Bear Valley CS	Bear Valley Water District (Bear Valley, CA)	888758	1.0	Certified	Jeff Gouveia	General Manager		12-JUN-23	12-JUN-23	Monthly Category 3 Spill	Highway 4	06/09/2023 20:15	06/09/2023 21:05	06/09/2023 20:10				PGE contractor damaged a sewer line while performing emergency maintenance on a buried power line.	38.47818	-120.00688	Force Main			100	Spill boundary in working trench	N	Spill boundary in working trench	0				100	Other (specify below)	Working trench	Working trench										06/09/2023 20:15	Volume estimations provided by PGE contractor and reported to Cal OES 6/10/2023 Control #23-3798.	Spill estimations start and end time provided by PGE contractor.	Other (specify below)	PGE contractor hit the line while performing a repair on a buried electrical line	Force Main		Polyvinyl Chloride (PVC)		49	Per PGE contractor, spill was limited to working trench and pumped out by contractor.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below)		PGE contractor notified our agency of pipe damage, pumped 100 gallons of spill water to vac truck, completed repair of electrical line, District staff then completed repair of sewer line.	Other (specify below)	Plan to perform more comprehensive mapping of 49 year old buried sewer line to attempt to provide better location advice for future underground repairs.	Plan to perform more comprehensive GIS mapping of 49 year old buried sewer line now that we understand the true location of the line to attempt to provide better location advice for future underground repairs.		06/10/2023 02:00	Cause of spill as determined by investigation was the result of a PGE contractor damaging a sewer line while performing emergency maintenance on a buried power line.		Seeking additional information as necessary from PGE contractor	06/12/2023 15:35														N/A	Improvements to GIS mapping of this section of the District's collection system	Verification of GIS mapping accuracy annually	Temporary repair completed, final repair estimated to be completed by 6-16-23.	Temporary repair completed, final repair estimated to be completed by 6-16-23.	Plan to perform more comprehensive GIS mapping of 49 year old buried sewer line now that we understand the true location of the line to attempt to provide better location advice for future underground repairs.	Improvements to GIS mapping of this section of the District's collection system	Have District staff on site during contractor repairs, require pump or vac trucks when such work is being performed	Seeking additional information as necessary from PGE contractor	
8	8SSO10565	Active	Corona City CS	Corona City DWP	888760	1.0	Certified	Aftab Hussain	Maintenance Manager		06-JUL-23	06-JUL-23	Monthly Category 3 Spill	4419 Cabot Dr.	06/09/2023 18:05	06/09/2023 18:45	06/09/2023 18:05				Manhole 10548 to storm drain. See attachment.	33.815726	-117.502304	Manhole			925	Manhole 10548 to storm drain. See attachment.	N						925	Other (specify below)	Captured all sewage from land and storm drain and returned to sewer system.	Spill spread is approximately 100ft by 10ft.	Y	33.815726	-117.502304							06/09/2023 21:10	CWEA Guide Chart	CWEA Guide Chart using flow height from the pickhole.	Root Intrusion		Gravity Mainline		Ductile Iron		12	Impacted sidewalk and parkway.	N	Cleaned Up (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Received call, called in response crew. Contained spill with vacuum truck and sandbags. Clean and sanitized effected area.	Plan Rehabilitation or Replacement of Sewer		The contractor will perform a confine-space entry into the manhole to remove the roots and the debris that caused the blockage. A second contractor will rehabilitate the manhole to stop root intrusion.		06/10/2023 12:00	Inspected the manhole and sewer main with CCTV. The contractor will perform a confine-space entry into the manhole to remove the roots and the debris that caused the blockage. A second contractor will rehabilitate the manhole to stop root intrusion.		Investigation of cause completed.	06/13/2023 09:00														Not applicable.	To rehabilitate the inside of the manhole to stop the spread of roots.	Not applicable.	The contractor will perform a confine-space entry into the manhole to remove the roots and the debris that caused the blockage. A second contractor will rehabilitate the manhole to stop root intrusion.	Inspected the manhole and sewer main with CCTV. 	Not applicable.		None.	Investigation of cause completed.	
8	8SSO10620	Active	EVMWD Regional Plant CS	Elsinore Valley Municipal Water District	888764	1.2	Certified	Alex Ramirez	WW collections worker lll	19-MAR-24	21-MAR-24	21-MAR-24	Category 1 Spill	Gray Fox dr	06/11/2023 04:29	06/11/2023 06:01	06/11/2023 04:20	06/11/2023 07:20	23-3818		Leak was percolating from underground force main on the north bound side of the street on Gray Fox Dr.  Size of percolation in the street was approximate 15ftx10ft.  Perculation flowed towards the northbound side of the curb and gutter.	33.67958	-117.26003	Force Main			100	Spill was percolation from underground force main leak.  Spill was collecting at the curb and gutter where it traveled east bound towards storm drain at approximate 100 feet away.  	Y	Upon entrant into storm drain, it traveled approximately 75 feet underground in a galvanized culvert until it opened back up and discharged to an open natural gravity flow towards the body of water that was approximate distance of 50 feet away.  	0	0	Entrance into the body of water was a natural slow gravity flow in a  static lake at the end of a cove.	100	0	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)	N /A	Spill was collecting at the curb and gutter where it traveled east bound towards storm drain at approximate 100 feet away.  Upon entrant into storm drain, it traveled approximately 75 feet underground in a galvanized culvert until it opened back up and discharged to an open natural gravity flow towards the body of water that was approximate distance of 50 feet away.  	Y	33.68003	-117.26047							06/11/2023 06:01	  90 minutes of time at approximate 1 gallon per minute.	Initial call from another department called at 4:28 pm to inquire if possible know leak existed at this location that a customer noticed wetness in the asphalt.  That person investigating reached out to me at 5:17pm and confirmed leak.  Upon my arrival and spill containment put in place the time was 5:58 pm 	Other (specify below)	Force Main break	Force Main	N/A	Polyvinyl Chloride (PVC)	N/A	31	Minimal impact of the spill severity due to low flow of spill and rapid response of crew that responded and contained the liquids.	N	Cleaned Up (specify below); Restored Flow	N/A	Crews responded for investigation and upon immediate arrival, a make shift dam made up of dirt was put in place at the curb and gutter to stop the flow continuing to the storm drain.  Other crew members arrived on scene with vacuumed equipment and perfumed cleanup and fully contained active spill.  	Repaired Facilities or Replaced Defect	N/A	Repaired force main 	N/A	06/12/2023 05:30	Force main break	N			Canyon Lake	Lake		Lake	None	Other (specify below)	No public restrictions 	Canyon lake POA	0	N	Y	At spill point entry and below and above lake	E-coli										
5S	5SSO10000	Active	Demo South CS	State Water Resources Control Board	888766	1.0	Draft Submitted						Category 2 Spill	Vacaville	06/12/2023 09:39	06/12/2023 09:39	06/12/2023 09:39	06/12/2023 09:39	231005		hkhkhkl	38.22166	-121.86032	Force Main			3000	gjgjkgkj	N						2900	Paved Surface		jkhkjh	N									05/26/2024 10:27	hkjhkjhk	jkljkljl	Construction Diversion Failure		Manhole		Concrete		21	jkhkjhj	N	Mitigated Effects of Spill (specify below); Other (specify below)		hkhklhl	Added Sewer to Preventive Maintenance Program	hkjhkhkh	jkhkjh	hkhkh	06/13/2023 09:41	hkjhjkh	N												N													
2	2SSO10096	Active	Berkeley City Public Works CS	Berkeley City of Public Works	888767	1.6	Certified	Jesus F Sandoval	Public Works Senior Supervisor	07-AUG-23	11-AUG-23	11-AUG-23	Category 1 Spill	intersection of le Roy & Hearst Berkeley California United States 	06/12/2023 09:18	06/12/2023 09:25	06/12/2023 09:15	06/13/2023 07:40	23-3841		Maintenance Hole #17-012-22 was overflowing due to debris and tree roots. We cleared blockage, clean and disinfected the area using the combination Truck.	37.87534	-122.25831	Manhole			60	spill went on pave area and into a Cath basing. we recovered 40 gallons and 20 went into a catch basin. 	Y	Catch basing	40	20	Sewage went in to a storm Catch Basing	20	40	Street/Curb and Gutter (2 3)		Hearst / Le Roy Berkeley CA	Y	37.87534	-122.25831							06/12/2023 10:25	We use the San Diego chart	San Diego Chart	Root Intrusion		Gravity Mainline		Vitrified Clay		80	N/A	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		We use a combination Truck to removed blockage and to clean affected area 	Inspected Sewer Using CCTV to Determine Cause		Relived blockage  	Frequent cleaning until rehab has been completed.	06/12/2023 08:45	We conducted a CCTV inspection and found Root intrusion.	N			Strawberry  Creek	Stream/Creek			NO	Temporary Restricted Use		City of Berkeley	1	N	N												
4	4SSO10409	Active	Maywood City CS	Maywood City	888771	1.0	Certified	Jerry Gomez	Public Works Superintendent 		13-JUN-23	13-JUN-23	Monthly Category 3 Spill	4360 E 52nd Street	06/07/2023 10:20	06/07/2023 11:00	06/07/2023 09:50				Intersection of Pine Avenue and 52nd Street.	33.99405	118.18678	Manhole			600	The sewage flowed south on Pine Avenue and then traveled east onto 53rd Street towards the catch basin/storm drain on the northwest corner of Cudahy Avenue & 53rd Street.	N						600	Street/Curb and Gutter (2 3)		The sewage flowed south on Pine Avenue and then traveled east onto 53rd Street towards the catch basin/storm drain on the northwest corner of Cudahy Avenue & 53rd Street.										06/07/2023 10:50	CWEA SSCSC Manhole Overflow Gauge and Visual Eyeball Method	9:50AM to 10:50AM, 10 gals per minute for 60 minutes, 10x60=600	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		10	Spill entered intersection and gutter area. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		The crew placed sandbags throughout the flow of the sewage to prevent it from entering the catch basin/storm drain. Utilized Gapvax with wash down and clean-up.  Returned all sewage to system.	Adjusted Schedule/Method of Preventive Maintenance		Aduit of area and add to hot spot list.		06/07/2023 01:20	Cause of spill was grease. 		LA County Public Works to inspect and monitor periodically.	06/08/2023 09:10														Aduit of area and add to hot spot list.	LA County Public Works re-hydro-jetted the main.	LA County Public Works to inspect and monitor periodically. 	No plans for rehabilitation.	The main will be inspected.	Not at the moment.	Add to hot spot list.	Add more sandbags.	LA County Public Works to inspect and monitor periodically.	
4	4SSO10409	Active	Maywood City CS	Maywood City	888772	1.0	Certified	Jerry Gomez	Public Works Superintendent 		13-JUN-23	13-JUN-23	Monthly Category 3 Spill	4885 E 52nd Place	05/01/2023 09:36	05/01/2023 10:18	05/01/2023 08:00				Spill location was in a construction site (dirt area). 	33.98662	118.17479	Manhole			500	Sewage spill into dirt area of construction site. 	N						450	Other (specify below)	Construction Site 	In dirt area of construction site. 										05/01/2023 11:17	Visual Estimation.	CWEA SSCSC Manhole Overflow Gauge. 	Damage by Others Not Related to Collection System Construction/Maintenance		Manhole		Vitrified Clay		10	Sewage entered dirt area.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Sewage pooled on construction site and a Gapvax was used to collect all the sewage. 	Adjusted Schedule/Method of Preventive Maintenance		LA County Public Works re-hydro-jetted the main. 		05/01/2023 03:05	Cause of spill was concrete chunks in the manhole.  City inspector to monitor to construction site. 		City had a meeting.	05/12/2023 09:15														Take action against contractor for dumping concrete into the manhole. 	Inspect and monitor periodically. 	LA County Public Works will inspect and monitor periodically.	No plans for rehabilitation. 	LA County Public Works will inspect and monitor periodically.	Not at this time. 	Monitor construction site. 	LA County Public Works removed top layer of dirt. 	City had a meeting.	
4	4SSO10409	Active	Maywood City CS	Maywood City	888773	1.0	Certified	Jerry Gomez	Public Works Superintendent 		13-JUN-23	13-JUN-23	Monthly Category 3 Spill	4885 E 52nd Place	05/01/2023 09:36	05/01/2023 10:18	05/01/2023 08:00				Spill location in a construction site. 	33.98662	118.17479	Manhole			500	Spill entered dirt area in construction site. 	N						450	Other (specify below)	Construction Site 	Dirt area in construction site. 										05/01/2023 11:17	Visual Estimation.	Eyeball Method.	Damage by Others Not Related to Collection System Construction/Maintenance		Manhole		Vitrified Clay		10	Top layer of dirt absorbed sewage.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		A Gapvax was used to collect all sewage.	Adjusted Schedule/Method of Preventive Maintenance		LA County Public Works re-hdyro-jetted the main. 		05/01/2023 03:05	Cause of spill was concrete chunks in manhole.  City inspector to monitor construction site. 		City had a meeting regarding monitoring the job site. 	05/12/2023 09:15														Take action against contractor. 	Inspect and monitor. 	LA County Public Works to inspect and monitor periodically. 	No rehabilitation plans.	LA County Public Works to inspect and monitor periodically. 	Not at this time.	LA County Public Works to inspect and monitor the main periodically.  The City to monitor the construction site. 	Inspect and monitor construction site.	City had a meeting regarding monitoring the job site. 	
2	2SSO10096	Active	Berkeley City Public Works CS	Berkeley City of Public Works	888777	1.2	Certified	Jesus F Sandoval	Public Works Senior Supervisor	14-JUN-23	12-DEC-23	12-DEC-23	Category 1 Spill	intersection of le Roy & Hearst Berkeley California United States 	06/12/2023 09:18	06/12/2023 09:25	06/12/2023 09:15	06/13/2023 07:40	23-3841		maintenance man hole #17-013-22 overflow in to gutter area asphalt surface	37.87534	-122.25831	Manhole			60	from the  manhole to the catch basin is a 240 feet over the gutter on asphalt surface.	Y	catch basin  we recovery. about 40 gallons whit the combination truck and about 20 gallons going into the storm system	40	20	on the catch basin we used the combination truck to vacuum and Colet the spill and clean up. also used the jet to unplug the sewer main.	20	40	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Curb and Gutter and into a Catch Basing	Y	37.87534	-122.25831							06/12/2023 10:25	San Diego Chart	San Diego Chart	Root Intrusion		Gravity Mainline		Vitrified Clay		80	Temporary Street closure	N	Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		We use the Hydro Flush Truck to relive the plug	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Engineering is evaluating the segment to rehabilitating the pipe	Engineering is evaluating the segment to rehabilitating the pipe	06/12/2023 10:25	We CCTV the main line and found root intrusion 	N			Strawberry  Creek	Ocean		Ocean 	No	Other (specify below)		City of Berkeley	0	N	N												
5S	5SSO10901-C	Active	City of Sacramento Combined CS	Sacramento City	888798	1.0	Certified	Kevin Guerra	Superintendent	14-JUN-23	26-JUN-23	26-JUN-23	Category 1 Spill	1206 Front Street, Sacramento, CA. 95814	06/11/2023 20:06	06/11/2023 20:56	06/01/2023 20:00	06/11/2023 23:10	23-3820		The spill originated from a pipe that is used to convey sewage from a ship in old Sacramento to the sewer collection system. A coupling broke and when the ship discharged some of the wastewater went straight into the Sacramento River.	38.581	-121.50703	Lower Lateral (Public)			4000	The spill entered  directly into the Sacramento River, when we arrived on site the spill was gone. There is not a picture of the spill boundaries.	N				The picture is of the coupling that broke and where the wastewater was pumped into the River.	4000	0	Surface Water		The spill took place under the boardwalk along the bank of the Sacramento River. A fitting at the levee wall was damaged and was the cause, the spill went directly into the river.	Y	38.581	-121.50703							06/11/2023 20:56	The calculation for this spill is 2 weeks multiplied by 4 days multiplied by 500 Gallons. The spill estimate totaled 4000 Gallons.	We used witness data to calculate the spill, there was nothing left for us to measure for calculations. The caller sated that they saw the spill after smelling an odor around 8PM on 6/11/23. They sated they had been smelling this same odor for the last two weeks, they work on the boardwalk and have the same shift daily. We traced the piping back to a ship, the Horn Blower that is docked along the River. We went the following day and spoke to the captain of the ship, and gathered information pertaining to their discharges. We were told that they only operate 4 days a week and discharge nightly after returning to the dock. They have a 1000 gallon holding tank that is never full, and on average is half to less than half full when discharging is performed. It is usually around 8PM when this occurs, this supported the callers statement and information. We had no way to verify the amount that came out of the pipe so we reported the total discharged each time. 2 weeks X 4 days X 500 Gallons. 	Pipe Structural Problem/Failure - Controls		Lower Lateral		Other (specify below)	A damaged, shielded rubber coupling is the fitting that failed causing the spill.	44	The spill had little to no impact on the area as it was intermittent and went straight into the river each time.	N	Other Enforcement Agency Notified; Property Owner Notified; Restored Flow		We got access under the boardwalk and looked for evidence of the spill, we found nothing that could be recovered. We then looked for the damaged piping, and found a coupling at the levee wall that had a hole in the top of it. We immediately mad a temporary repair and scheduled a permeant repair to be made. While this was happening notifications were being made of a spill into the river.	Repaired Facilities or Replaced Defect		After the repair and meeting with facilities., a more detailed inspection process has been put in place at the dock. We will be going more frequently and inspecting more items to prevent another spill at this location.	Inspections will happen more frequently, and we are discussing  a life cycle for the piping at the dock to be replaced as a precaution to failures.	06/11/2023 22:47	We found a pipe had been resting on top of the coupling, and this is where the failure occurred. After making the repair the water pipe was supported in another location to get it off of the new fitting that was installed.	N			Sacramento River	River			None	Other (specify below)	No Impacts to the Public	City of Sacramento	0	N	N												
4	4SSO10374	Active	Carson City CS	Carson City	888808	1.1	Certified	Robert Swartz	Sr. CE	14-JUN-23	28-JUL-23	28-JUL-23	Category 1 Spill	1706-0447 (24412 Main Street, Carson)	05/31/2023 11:22	05/31/2023 12:09	05/31/2023 11:00	05/31/2023 13:21	233573		Sewage spill discharged from Manhole No. 447	33.80427	118.27538	Gravity Mainline			600	Sewage spill flowed into curbside and catch basin.	Y	BI 0690 - UI - Panama Ave Wilmington Drain	0	400	BI 0690 - UI - Panama Ave Wilmington Drain	400	0	Drainage Conveyance System that discharges to surface water		Wilmington Drain	N									05/31/2023 15:20	SSCSC Manhole Overflow Gauge	Visual  SSCSC Manhole Overflow Gauge	Vandalism (specify below)	A variety of different household items were dumped into manhole. 	Gravity Mainline		Vitrified Clay		52	No impact observed	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Washed down area and returned captured sewage spill back into sanitary sewer system.	Upon arrival, set up berm utilizing dirt to contain water at curbside, no solids present. Washed down area and captured all water and returned back into sanitary sewer system. Also recovered portion of spill and returned into the sanitary sewer system. 	Other (specify below)	Change Manhole No. 446 rim and top. Continue to inspect Manhole No. 446 twice yearly. 	The recommendation is to schedule bricklayer to change Manhole No. 446 rim and top to composite so that it can be locked to prevent future vandalism. Will also continue to inspect Manhole No. 446 twice annually. 	Continue to inspect Manhole No. 446 twice yearly. 	05/31/2023 12:55	vandalism, debris dumped into manhole	N		05/31/2023 12:55	Wilmington channel	Lake			N/A	Other (specify below)	N/A	N/A	0	N	N												
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	888811	1.3	Certified	Gerald Watson	Sanitation Wastewater Manager III		12-JUL-23	12-JUL-23	Monthly Category 3 Spill	3350 West Wilshire Boulevard	06/14/2023 23:35	06/15/2023 00:08	06/14/2023 23:35				The initial crew arrived at 12:08A.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.061728	118.29581	Inside Building or Structure; Manhole			990	Approximately 990 gallons of sewage backed out of the sewer due to the blockage, of that amount an estimated 370 gallons entered the property at 3350 West Wilshire Boulevard. The remaining 620 gallons of sewage was contained at an adjacent City of Los Angeles owned catch basin at 3400 West Wilshire Boulevard. The crew was able to establish containment and subsequently returned the entire amount to the sanitary sewer system.	N	620 gallons of sewage was contained at an adjacent City of Los Angeles owned catch basin at 3400 West Wilshire Boulevard. The crew was able to establish containment and subsequently returned the entire amount to the sanitary sewer system.	620				990	Building or Structure; Other (specify below); Paved Surface	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	Approximately 990 gallons of sewage backed out of the sewer due to the blockage, of that amount an estimated 370 gallons entered the property at 3350 West Wilshire Boulevard. The remaining 620 gallons of sewage was contained at an adjacent City of Los Angeles owned catch basin at 3400 West Wilshire Boulevard. The crew was able to establish containment and subsequently returned the entire amount to the sanitary sewer system. Map Guide: 634-A2Latitude: 34.061728Longitude: -118.295810										06/15/2023 00:13	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.  The SSO volume was estimated utilizing a standardized template which calculates the volume by using dimensional analysis.	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation. The SSO volume was estimated utilizing a standardized template which calculates the volume by using dimensional analysis. 	Root Intrusion		Gravity Mainline		Vitrified Clay		66	Approximately 990 gallons of sewage backed out of the sewer due to the blockage, of that amount an estimated 370 gallons entered the property at 3350 West Wilshire Boulevard. The remaining 620 gallons of sewage was contained at an adjacent City of Los Angeles owned catch basin at 3400 West Wilshire Boulevard. The crew was able to establish containment and subsequently returned the entire amount to the sanitary sewer system.	N	Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		On Wednesday, June 14, 2023 at 11:35 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 3350 West Wilshire Boulevard (TG 634-A2). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 12:13 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.	Adjusted Schedule/Method of Preventive Maintenance		The sewer location where the backup occurred will be televised to determine the exact cause and to determine the necessary actions to prevent future incidents at this location.		06/15/2023 00:13	The cause of the blockage was attributed to root intrusion. 		No	06/15/2023 00:13														None.	Pipeline will be placed on semi annual maintenance schedule.		Pipeline will be placed on semi annual maintenance schedule.	Pipeline will be placed on semi annual maintenance schedule.	None required at this time.		A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 12:13 AM. The cause of the blockage was attributed to root intrusion.	No	
8	8SSO10583	Active	La Habra City CS	La Habra City	888826	1.0	Certified	Brian Jones	Utilities Manager		15-JUN-23	15-JUN-23	Monthly Category 3 Spill	Colfax St.	06/13/2023 10:35	06/13/2023 10:50	06/13/2023 10:20				Gravity sewer mainline manhole cover.	33.92752	-117.93065	Manhole			100	Spill went to curb and gutter	N						80	Paved Surface; Street/Curb and Gutter (2 3)		Exited manhole cover and traveled south in curb and gutter.	N									06/13/2023 11:00	Spill volume was based upon pickhole chart and time lapse between customer's observation of spill and time to clear the blockage	Responding party spoke to customer at site who notified the City	Debris-Rags		Gravity Mainline		Vitrified Clay		65	Minimal, to no impact.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Staff contained the spill, cleared the blockage and restored flow.  Cleaned and sanitized street.  Contacted Orange County Health Care Agency at 1212 hours, and Santa Ana Regional Water Quality Control Board at 1222 hours.	Inspected Sewer Using CCTV to Determine Cause		CCTV revealed no defects or structural issues within the mainline.		06/13/2023 14:30	This is a residential housing tract.  There were no observable activities noted by the response crew that would indicate who flushed the rags.		NA	06/13/2023 14:30														NA	NA	NA	NA	NA	NA	NA	NA	NA	
3	3SSO11408	Active	Hollister Municipal Sewer System CS	Hollister City	888827	1.2	Certified	William Via	Public Works Director		07-AUG-23	07-AUG-23	Monthly Category 3 Spill	1321 Westside Blvd	06/12/2023 16:35	06/12/2023 16:37	06/12/2023 16:34				See attachments	36.84182	-121.41458	Gravity Mainline; Manhole			100	See attachments	N	NA					100	Street/Curb and Gutter (2 3)		Spill reached curb and gutter only										06/12/2023 16:50	1 inch diameter vent hole 2 vent holes discharging 2.4 gpm for 20 minutes total 100 gallons	Pichole method	Debris from Lateral; Debris-General; Fats, Oil and Grease (FOG)		Gravity Mainline		Polyvinyl Chloride (PVC)		40	Grease, rags, hair	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Put out socks around DI.  Cleared plug.  Applied E-SAN 64 solution to spill area. Washed into gutter and DI on corner and vacuumed out with Vacor truck	Adjusted Schedule/Method of Preventive Maintenance		Adjust inspection schedule and CCTV monitoring		06/14/2023 14:15	Grease, rags, hair and lateral discharges		NA	06/15/2023 14:16														NA	Adust inspection schedule and CCTV monitoring	Weekly monitoring to determine cleaning schedule	NA	NA	NA	NA	NA	NA	
2	2SSO10184	Active	San Rafael SD CS	San Rafael Sanitation District	888859	1.0	Certified	Doris Toy	District Manager		01-JUL-23	01-JUL-23	Monthly Category 3 Spill	410 Prospect	06/06/2023 07:50	06/06/2023 08:14	06/06/2023 06:39				Marin Municipal Water District received the initial call and sent a technician out to investigate.  Their dispatch notified us but relayed the wrong location.  I called them back at 0809 hours and was transferred to the technician who pointed us to the correct location.  	37.9872431539	-122.529274024	Manhole			136	Upon exiting manhole the spill entered a pullout at the edge of the roadway, then traveled across the street to landscaping on the other side of the road before it entered an 18 inch VCP storm drainage pipe.  	Y	The storm drain pipe begins in the backyard for 410 Prospect then travels downslope underground to Hammondale Ct.  before its final destination at Lincoln Ave. at another catch basin.  This catch basin was dry when we arrived.  	136				136	Drainage Conveyance System that discharges to surface water		Catch basin at Hammondale Ct. and Lincoln Ave. 	Y	37.987627	-122.527743							06/06/2023 08:35	There are 8 upstream lateral connections and total run time 116 minutes based on the time when Marin Municipal Water District was told it started to when we cleared the blockage.  The average daily usage for residences in San Rafael is 132 gallons per day. It is estimated 40% of daily usage for the time period between 0600-1200 hours.  This gives us 17.01 gallons spilled per residence for this time period.  17.01 gallons times 8 residences equals 136.11 gallons.	We are assuming the time the spill began is based on the information provided by the Marin Municipal Water District dispatcher.  The spill end time is when we cleared the blockage. 	Pipe Structural Problem/Failure - Installation	Offsets in pipe	Gravity Mainline		Vitrified Clay		75	After clearing the blockage we set our Vactor truck up at the catch basin at Lincoln and Hammondale then used our water tanker truck to wash down the afftecte areas on the landscaping, street and drainage pipe.  The Vactor removed all spillage and wash water.	N	Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		After clearing blockage we brought our water tanker to sight and washed down affected areas.  Used Vactor to remove all wash down water.  	Added Sewer to Preventive Maintenance Program; Plan Rehabilitation or Replacement of Sewer		When calculating the volume of the spill I looked at the wrong manhole and counted 174 upstream lateral connections and came up with 1259 gallons.  I notified Cal OES and was given the control number 23-3696.  Once my mistake was pointed out I called Cal OES back and gave them the corrected volume.  		06/06/2023 10:22	Please call 415-485-3374		No	06/07/2023 14:30														The County of Marin Environmental Health  called me at 1234 hours to clarify my mistaken volume and confirmation of all water was collected. 	This pipe segment was added to our preventative maintenance schedule	Yes Vactor list	Yes	Yes this pipe was CCTV'd the following day 06/07/2023	This has been added to Sewer Improvement Various Locations Project 2023	Please call 415-485-3374	cleared blockage, washed down affected areas and collected all spill and wash down water, CCTV and located offsets in pipe.  Notified engineering consultant regarding adding this pipe to be replaced on next CIP	No	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District	888873	1.0	Certified	John J. Hough	San Dist. Superintendent	23-JUN-23	28-JUN-23	28-JUN-23	Category 1 Spill	328628	06/13/2023 10:51	06/13/2023 11:07	06/12/2023 20:00	06/13/2023 14:14	23-3853		See Attached Spill Map.	38.48509	-121.41271	Manhole			5357	See Attached Spill Map.	Y	See Attached Spill Map.	2948	0	See Attached Spill Map.	2400	5357	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water		See attached Spill Map.	Y	38.48505	-121.41289	38.48142	-121.4134					06/13/2023 11:34	See attached Spill Volume Estimation.	See attached Spill Volume Estimation.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		46	No observed impacts of the spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	Notified Sacramento County Department of Water Resources Drainage.	SacSewer M&O crews used a hydro-vacuum truck to clean all above-ground surfaces, drainage conveyance system, and surface water.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected the main line with CCTV on June 13, 2023. Based on the findings, SacSewer placed the main line on a 24-month preventative maintenance cleaning schedule.	Added to preventative maintenance schedule on 6/15/23.	06/13/2023 18:20	See attached Description of Event.	N			Elder Creek	Stream/Creek			No observed impacts to aquatic life.	Other (specify below)	The impacted surface water is fenced and not accessible to the public.	The impacted surface water is fenced and not accessible to the public.	0	N	N												
5S	5SSO10000	Active	Demo South CS	State Water Resources Control Board	888877	1.0	Certified	Renan Jauregui	LRO		16-JUN-23	16-JUN-23	Category 2 Spill	Elmira	06/16/2023 10:47	06/16/2023 10:47	06/16/2023 10:47	06/16/2023 10:47	231000		hjgjhgjg	39.14783	-122.5195	Force Main			1001	hjkhkjhkj	Y	gjhghgh	600	50			900	Drainage Conveyance System		hjkhkjhj	Y	38.90887	-121.94821							06/15/2023 10:53	ggjhgj	hjkhkjh	Collection System Maintenance Failure (specify below); Construction Diversion Failure		Manhole		Concrete		21	gjhgjgjk	N	Contained All or Portion of Spill; Other (specify below); Other Enforcement Agency Notified	gjgkjgk	jgjgjkgg	Added Sewer to Preventive Maintenance Program; Enforcement action against Fats, Oil, and Grease (FOG) source		hhkhklh	jkgjkgkj	06/16/2023 10:52	hjkhjkhjh	N												N													
2	2SSO10099	Active	Burlingame City CS	Burlingame City PWD	888884	1.0	Certified	Richard Horne	Streets, Storm Drain and Sewer Division Manager	16-JUN-23	29-JUN-23	29-JUN-23	Category 1 Spill	1103 Airport Blvd	06/15/2023 11:15	06/15/2023 11:22	06/15/2023 11:00	06/15/2023 12:54	23-3900	28-JUL-23	The lower lateral cleanout was located in a dirt planter strip along the side of Airport Blvd. Pic 7 attached	37.59188	-122.35194	Lateral Clean Out (Public)			5400	The appearance point of the spill was located along the 13�  wide roadway planter strip. The spill traveled into the roadway, along the gutter, and into a nearby storm drain inlet located 10 feet away from the curb face. Within the storm drain inlet, the spill traveled north approximately 100� inside a storm pipe and discharged to the SF Bay. Pics 9A, 9B, 9C are attached	Y	The spill traveled into the roadway, along the gutter, and into a nearby storm drain inlet located 10 feet away from the curb face. Within the storm drain inlet, the spill traveled north approximately 100� inside a storm pipe and discharged to the SF Bay. Pic 10A attached	0	0	Within the storm drain inlet, the spill traveled north approximately 100� inside a storm pipe and discharged to the SF Bay. The storm drain discharge pipe was not visible due to the high tide. Pic 11.A overview attached	5400	0	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		The appearance point of the spill was located along the 13�  wide roadway planter strip. The spill traveled into the roadway, along the gutter, and into a nearby storm drain inlet located 10 feet away from the curb face. Within the storm drain inlet, the spill traveled north approximately 100� inside a storm pipe and discharged to the SF Bay.	Y	37.59188	-122.35194							06/15/2023 14:04	The eyeball method was used to calculate this amount. Four employees got together (2 Leadworkers, 2 Supervisors) and provided an educated gallons per minute amount, based on recent volume estimation training. We took the 4 amounts, added them together, then divided the answer by 4. Lead 1 � 25 gpm Lead 2 � 33 gpm Supervisor 1 � 27 gpm Supervisor 2 � 35 gpm 25 + 33 + 27 + 35= 120 120 divided by 4 = 30 gallons per minute We determined the total spill time was around 180 minutes; staff was able to turn off the pumps several times during the event, so the flow was significantly less, or zero several times during the event. 180 x 30 = 5,400  	A staff member performing pump station inspections had driven by the future incident location at 11am. The reporting party, Dirk Jenson was interviewed to determine when he observed the spill; sometime after 11am	Other (specify below)	The cause of the spill was determined to be a failed backwater device located on a 4� lower lateral, which connects to a 10� force main.	Lower Lateral		Polyvinyl Chloride (PVC)		3	The spill discharged into the San Francisco Bay during a period of high tide, which completely covered the discharge storm pipe.	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow		When staff arrived 7 minutes after we were notified, staff immediately took pictures and attempted to block the flow into a storm inlet 10� away from the source. Staff called for additional assistance and their Supervisor. Staff attempted to restore flow with a mechanical auger, while other staff members set up a combination cleaner to assist in restoring flow. The lower lateral cleanout that is connected to the FM is 1976� from the Airport lift station, so staff intermittently turned off the pumps to mitigate the overflow while investigating the source. Staff capped the lower lateral cleanout, which ended the SSO. Staff then began the clean-up procedures. CalOES was notified at 12:54pm on 6.15.23	Repaired Facilities or Replaced Defect		The staff installed a cap on the lower lateral riser. Staff is in the progress of obtaining an upgraded backflow device and installing it. 	A new backflow device should be installed in the next several weeks.	06/15/2023 22:03	Staff USA �ed the location and then excavated the sewer lateral and the force main. Staff discovered the buried backwater valve. The backwater valve was determined to be faulty; the flapper valve was broken.	N			San Francisco Bay	Ocean			None	Other (specify below)	None- recreational activities do not exist within 1 mile of this location	CalOES, San Mateo County emergency services	0	N	Y	At discharge point of storm pipe in San Francisco Bay, 100' from storm inlet	Fecal Coliform										
4	4SSO10421	Active	Redondo Beach City CS	Redondo Beach City	888889	1.0	Certified	Geraldine Trivedi	Civil Engineer		19-JUN-23	19-JUN-23	Monthly Category 3 Spill	1013 Camino Real 	06/10/2023 10:30	06/10/2023 11:02	06/10/2023 10:28				Spill appearance point located at private lateral clean-out. 	33.8291	-118.37571	Lateral Clean Out (Private)			50	SSO was completely contained and recovered.	N						50	Paved Surface		Private property, residential location side yard, paved surface.	Y	33.8291	-118.37571							06/10/2023 11:55	measured in field.	tape measure was used to measure SSO.	Root Intrusion		Gravity Mainline		Vitrified Clay		50	SSO contained on private property side yard, paved surface.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow		SSO contained and 100% captured.	Added Sewer to Preventive Maintenance Program		SSO contained and 100% captured.		06/10/2023 12:00	root intrusion in main line caused SSO. 		n/a	06/10/2023 12:00														n/a	location to be added to root treatment schedule	location to be added to root treatment schedule	location to be added to root treatment schedule	location to be added to root treatment schedule	n/a	n/a	SSO contained and 100% captured.	n/a	
2	2SSO10105	Active	Central Contra Costa Sd CS	Central Contra Costa Sanitary District	888904	1.0	Certified	Paul Seitz	Collection System Division Manager		21-JUN-23	21-JUN-23	Monthly Category 3 Spill	1950 San Luis Rd Walnut Creek	06/17/2023 11:47	06/17/2023 12:09	06/17/2023 10:33				Spill discharged from private lateral cleanout at 1950 San Luis Rd due to a blockage in our mainline.	37.91746	122.07732	Upper Lateral (Private)			155	Spill was contained in a flower bed and concrete patio in the backyard of address.	N						0	Other (specify below); Unpaved Surface	Other surface was a concrete and brick patio.	Spill was contained in a flower bed and concrete patio in the backyard of address.										06/17/2023 13:08	We estimated the spill rate to be 1 gpm X 155 minutes = 155 gallons	Our internal spill chart. Flow X duration	Root Intrusion	Root plug in manhole.	Gravity Mainline; Manhole		Vitrified Clay		72	Minimal. Contained in small area in backyard.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow		Restored flow, took pictures, calculated volume and cleaned-up property.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Added to manhole inspection list	Inspected mainline with CCTV, and added to manhole inspection list. 		06/17/2023 15:00	We found blockage was caused by root intrusion in manhole.		None	06/21/2023 15:30														None	Added to manhole inspection list .	Yes	No	Yes	No	Noted in our operations meeting minutes and added to manhole inspection list.	None	None	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	888905	1.0	Certified	Gerald Watson	Sanitation Wastewater Manager III		29-JUN-23	29-JUN-23	Category 2 Spill	2110 East Cesar Chavez Avenue	06/19/2023 16:53	06/19/2023 17:05	06/19/2023 16:53	06/19/2023 19:43	23-3974 			34.047937	118.211176	Inside Building or Structure			1870				0	0			1870	Building or Structure		Latitude: 34.047937 Longitude: -118.211176	Y	34.047937	118.211176							06/19/2023 16:53	Volume of a spill contained in a rectangular area	VOLUME OF A SPILL CONTAINED IN A RECTANGULAR AREA LENGTH40FEET WIDTH25FEET DEPTH3INCHES0.2500FEET 250.00FT31,870GALLONS	Vandalism (specify below)		Gravity Mainline		Vitrified Clay		126	Spill was contained on the property at 2110 East Cesar E. Chavez Avenue.	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Approximately 1,870 gallons of sewage flowed from the sewer due to the blockage. The crews were able to establish containment and captured 1,870 gallons of sewage, returning it to the sewer system.	Adjusted Schedule/Method of Preventive Maintenance		Maintenance schedule will be changed to semi-annual cleaning.	Maintenance schedule will be changed to semi-annual cleaning.	06/19/2023 17:38	A CWCD crew arrived at the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage, which was attributed to vandalism. 	N	Investigation into this matter was completed on June 19, 2023.	06/19/2023 17:38										N												Investigation into this matter was completed on June 19, 2023.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	888906	1.0	Certified	Ameal McLaurin	Sewer Supervisor 2		20-JUN-23	20-JUN-23	Monthly Category 3 Spill	7140 Buckingham Blvd, Oakland Ca	06/13/2023 14:30	06/13/2023 16:00	06/13/2023 13:30				Temporary 6  PVC Gravity Mainline on Easement disconnected.	37.86074	-122.22185	Gravity Mainline	Temporary 6  PVC Gravity Mainline on Easement disconnected.		66	Temporary 6  PVC Gravity Mainline on Easement disconnected.	N						0	Unpaved Surface		Temporary 6  PVC Gravity Mainline on Easement disconnected.										06/13/2023 18:00	15' L x 3' W x 1' D x 7.48-Gal x .1875 =63 Gallons L 2' x 2' W x .5' D x 7.48-Gal x .1875 = 3 Gallons 63 + 3 = 66 Gallons Total spill	Information from the Reporting Party. Calculation was made from the witness start time statement. 	Collection System Maintenance Failure (specify below); Pipe Structural Problem/Failure - Installation		Gravity Mainline		Polyvinyl Chloride (PVC)		20	Spill soaked into the soil.	N	Restored Flow		Repaired and reconnected the temporary gravity mainline.	Repaired Facilities or Replaced Defect		Potential reroute gravity mainline will be inspected monthly to ensure no failure. This line has been turned over to engineering for further assessment.		06/13/2023 20:00	 Found temporary 6  PVC Gravity Mainline on Easement disconnected. Repaired section pipe that was pulled apart.		 Potential reroute of temporary line pending engineering assessment.	06/27/2023 15:30														N/A	Potential reroute gravity mainline was repaired. Line will be inspected on a monthly basis. 	Line with be checked periodically to ensure the integrity of the pipe. Line will be checked monthly.	Pending engineering assessment and decision.	On 6/13/23, sewer main was visually inspected and repaired.  	Pending engineering assessment and decision.	Given the nature of the failed pipeline, a visual inspection must be performed monthly. 	Repaired portion pipe that was pulled apart.	 Potential reroute of temporary line pending engineering assessment.	
2	2SSO10216	Active	West County WW District CS	West County Wastewater District	888915	1.0	Certified	Gordon Times	Collection System Operations Department Manager	20-JUN-23	05-JUL-23	05-JUL-23	Category 1 Spill	4108 San Pablo Dam Rd.	06/17/2023 11:29	06/17/2023 12:02	06/03/2023 08:00	06/17/2023 13:15	23-3948	01-AUG-23	We had a sewer back-up in a 10  VCP line that backed up into an overflow line that sits just above the storm drain line. Water from the broken line entered the storm drain that is adjacent next to the creek. The spill never reached the street surface which allowed it to remain unnoticed for so long. A houseless person that frequently sat under the bridge said he thinks it was flowing for 2 weeks. The line that backed up had a partial stoppage. The volume was calculated using a 5-gallon bucket. We timed how many buckets will fill in a minute. Five buckets were filled totaling approximately 25 gpm which we calculated by how long the sewer flow lasted. (See Timing 5-gallon bucket jpeg). The sewer line was partially plugged and still had flow entering the downstream manhole when the crew arrived. Cleaning the line with a hydro flusher cleared the partial stoppage stopping the overflow.	37.96611	-122.30901	Gravity Mainline			510625	The sewage appeared from a storm drain outlet approximately 60 feet below the road surface. The spill entered San Pablo Creek about 25 feet beyond where the storm drain daylighted. We assume the spill ultimately reached San Pablo Bay. Photos of the creek in various locations are attached.	N				The discharge point was the storm drainpipe. A picture of this is attached.	510625	0	Surface Water		The Spill entered the creek at the appearance point location and likely flowed to San Pablo Bay. Appearance Point display attached.	Y	37.575965	-122.1819							06/17/2023 12:18	The volume was calculated using a 5-gallon bucket. We timed how many buckets will fill in a minute. Five buckets were filled totaling approximately 25 gpm which we calculated by how long the sewer flow lasted. (See Timing 5-gallon bucket jpeg). The sewer line was partially plugged and still had flow entering the downstream manhole when the crew arrived. Cleaning the line with a hydro flusher cleared the partial stoppage stopping the overflow. Because the creek is live and active, besides removing the obvious debris and other solids no recovery could be made.	The volume was calculated using a 5-gallon bucket. We timed how many buckets will fill in a minute. Five buckets were filled totaling approximately 25 gpm which we calculated by how long the sewer flow lasted. (See Timing 5-gallon bucket jpeg).  We considered using the Upstream Lateral Method, but the location of the line, and the fact that the line was partially plugged made it too ambiguous.	Debris-Rags; Pipe Structural Problem/Failure - Controls		Gravity Mainline		Vitrified Clay		55	The spill entered the creek about 30 ft. from the storm drainpipe. The first 10 ft contained flushable wipes and other solids which were cleaned up by WCW crew members. Besides partially dissolved flushable wipes swimming at the bottom of the creek, the appearance of the creek seems normal.  We have monitored the site daily since the spill and since day 1, ducks have been seen swimming in the creek. Besides an odor noticeable on the day we were notified, there has been no known impact on the public.	N	Cleaned Up (specify below); Restored Flow		The crew arrived on the site within an hour. The sewage entered the storm drainpipe just before it started the downward fall into the creek. The overflow was eliminated minutes after the crew arrived. The team used a vactor truck to remove the solids that formed on the banks of the creek which completed the cleanup efforts. Because of the creek flow, the spill was unrecoverable.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		1. The frequency of maintenance on the line will be increased from 6 months to 3 months.  2. The damaged overflow line has been repaired.  3. Evaluate all sewer lines in the immediate location of this spill.  4. Repair or replace identified lines  	1. The frequency of maintenance on the line will be increased from 6 months to 3 months.  --Done  2. The damaged overflow line has been repaired.   --Done  3. Evaluate all sewer lines in the immediate location of this spill.  --90 days (October 1)  4. Repair or replace identified lines (Depending on Severity)  --360 days (June 30, 2024)  5. Implement Program to evaluate all sewer lines within 50 ft. of waterway if no record of assessment in the last five years.  --180 days (December 30, 2023) 	06/23/2023 13:24	CCTV of the storm drainpipe which sits directly under the sewer pipe revealed damage. Though we are still investigating, water escaping the storm drain may have washed away the soil under the sewer allowing it to disconnect and release into the storm drainpipe below it.	Y	To determine the exact cause and how to prevent it from happening in the future.	09/30/2023 17:00	San Pablo Creek	Other (specify below)	Creek		We have monitored the site daily since the spill and since day 1, ducks have been seen swimming in the creek. No evident sign of dead or negatively impacted wildlife. Besides an odor noticeable on the day we were notified, there has been no known impact on the public.	Other (specify below)	NA	NA	0	N	Y	See Attached	See Attached									To determine the exact cause and how to prevent it from happening in the future.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	888922	1.0	Certified	Ameal McLaurin	Sewer Supervisor 2		21-JUN-23	21-JUN-23	Monthly Category 3 Spill	2220 Ransom Avenue, Oakland Ca	06/14/2023 19:45	06/14/2023 20:45	06/14/2023 18:00				Gravity Mainline Clean-Out on the sidewalk planter strip was overflowing.	37.78302	-122.21209	Other (specify below)	Gravity Mainline Clean-Out		172	Gravity Mainline Clean-Out on the sidewalk planter strip was overflowing. 46 gallons of the spill soaked into the ground on unpaved surface, 126 was recovered and returned to the Sanitary Sewer System.	N						126	Street/Curb and Gutter (2 3); Unpaved Surface		Gravity Mainline Clean-Out on the sidewalk planter strip was overflowing, allowing a small portion to reach the gutter.										06/14/2023 18:00	Recovered: 33' L x 3' W x .17' D x 7.48-Gal = 126 Gallons Lost unpaved surface: 33' L x 3' W x .33' D x 7.48-Gal x .1875 = 46 Gal Total Spill: 126 + 46 = 172 Gallons	Crew contacted the reporting party; Crew had the estimated start time from her. The end time was when crew removed the root blockage and restored the flow.	Root Intrusion		Gravity Mainline		Vitrified Clay		90	Gravity Mainline Clean-Out on the sidewalk planter strip was overflowing, allowing a small portion to reach the gutter.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Crew contained the spill at the gutter area with use of sandbags. After restoring the flow, crew cleaned, washed down the affected spilled areas, recovered a portion of the spill, and returned that portion to the Sanitary Sewer System.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		Information has been submitted to Program Analyst to place mainline in high frequency for routine cleaning.		06/15/2023 00:30	Responding crew found the root intrusion blockage in gravity mainline to be the cause of the overflow. 		More CCTV inspections are ongoing to find other potential causes of the overflow.	06/15/2023 12:30														N/A	Information has been submitted to Program Analyst to place mainline in high frequency for routine cleaning.	Information has been submitted to Program Analyst to place mainline in high frequency for routine cleaning.	Request for CIP has been submitted to Engineering and Design Division for assessment and decision.	CCTV inspection was done on 6/15/23.	Request for CIP has been submitted to Engineering and Design Division for assessment and decision.	Information has been submitted to Program Analyst and placed mainline in 6 Months high frequency for routine cleaning.	Information has been submitted to Program Analyst and placed mainline in 6 Months high frequency for routine cleaning. Request for CIP has been submitted to Engineering and Design Division for assessment and decision.	More CCTV inspections are ongoing to find other potential causes of the overflow.	
4	4SSO11388	Active	County Sanitation District Joint Outfall CS	Los Angeles Cnty Sanitation Districts	888927	1.0	Certified	Kristen Ruffell	Asst Departmental Engineer		27-JUN-23	27-JUN-23	Category 2 Spill	Joint Outfall J � Unit 1F Force Main (Joint Outfall System)	06/15/2023 16:01	06/15/2023 16:01	06/15/2023 15:55	06/15/2023 18:15	23-3913		The spill originated from LACSD�s Joint Outfall �J� � Unit 1F Force Main at 33�44'24.867 N,   -118�21'45.3744 W on Palos Verdes Drive South, between Peppertree Road and Yacht Harbor Drive in the City of Rancho Palos Verdes.  The spill was caused by vehicle accident.  	33.740241	-118.362604	Force Main			7512	The spill area from the damaged Victaulic coupling extended approximately 5 feet north, 2 feet south to the parallel force main, 10 feet east, and 20 feet west on an unpaved area adjacent to the road.  In the street area, the spill flowed north and extended from the curb and gutter 2 feet for approximately 20 feet, 15 feet to the street centerline for 40 feet, and 2 feet for 35 feet to the underflow inlet.  The spill entered the underflow inlet and spread out to open land within a heavily vegetated and inaccessible area that prohibited LACSD staff from further determining the extent of the spill area.     	N						500	Other (specify below); Street/Curb and Gutter (2 3); Unpaved Surface	The spill flowed west in the curb and gutter and entered an underflow inlet located approximately 95 feet west of the spill location.  	The spill originated from LACSD�s Joint Outfall �J� � Unit 1F Force Main at 33.740241, -118.362604 on Palos Verdes Drive South, between Peppertree Road and Yacht Harbor Drive in the City of Rancho Palos Verdes.  The spill was caused by vehicle accident. The spill area extended approximately 5 feet north, 2 feet south to the parallel force main (33.74023, -118.36261), 10 feet east, and 20 feet west on an unpaved area adjacent to the road.  In the street area, the spill flowed north and extended from the curb and gutter 2 feet for approximately 20 feet, 15 feet to the street centerline for 40 feet (33.74029, -118.36274), and 2 feet for 35 feet to the underflow inlet.  The spill entered the underflow inlet (33.74024, -118.36293) and spread out to open land within a heavily vegetated and inaccessible area that prohibited LACSD staff from further determining the extent of the spill area.      	Y	33.740241	-118.362604	33.74023	-118.36261	33.74029	-118.36274	33.74024	-118.36293	06/15/2023 18:15	See Attachment	It is assumed that the spill started at 3:55 p.m. when the vehicle collided with the Joint Outfall �J� � Unit 1F Force Main.  The time of collision was determined during the investigation by the Los Angeles County Sheriff�s Department staff from the Lomita Station.  The spill end time  of 6:15 p.m. was observed by LACSD staff when flow from the damaged coupling ceased.  	Damage by Others Not Related to Collection System Construction/Maintenance	The spill was caused by vehicle accident.	Force Main		Other (specify below)	Steel	45	See Attachment	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	-Repaired damaged force main -Flushed street/curb and gutter with potable wash water -Collected and returned wash water to sewer -Replaced contaminated soil in unpaved area adjacent to the road 	See Attachment	Repaired Facilities or Replaced Defect		See Attachment	N/A	06/15/2023 20:00	See Attachment	N												N													
2	2SSO10147	Active	Las Gallinas CS	Las Gallinas Valley Sanitary District	888929	1.3	Certified	Greg Pease	Collection System/Maintenance/Safety Manager	22-JUN-23	14-JUL-23	14-JUL-23	Category 1 Spill	899 Northgate Dr., San Rafael CA 94903	06/20/2023 10:41	06/20/2023 10:41	06/20/2023 10:41	07/12/2023 00:00	N/A		Spill occurred in an easement that sits on a terraced hillside. A majority of the spill was contained to the terrace. 	38.00544	-122.54586	Manhole		Down Stream manhole overflowed as a result of clearing the blockage. This location overflowed at approximately 100 gpm for 3 minutes.	1439	Approximately 1,139 gallons spilled from the initial SSO location but was mostly contained to a terrace by which the gravity line resided on. Approximately 489 gallons seeped down the hillside and into the gutter pan and into a downstream drainage inlet  before we could capture it.  During the stoppage removal process, approximately 300 additional gallons overflowed at the downstream manhole (secondary appearance point). This 300 gallons could not be contained and also made it to the storm drain. 	Y	Downstream of the spill location is a stormwater drainage inlet that eventually discharges to a canal and then to Gallinas Creek.	0	0	TBD	789	650	Drainage Conveyance System that discharges to surface water		Concrete canal that discharges to Gallinas Creek	Y	38.00855	-122.54621							06/20/2023 10:54	We used  Area Volume Estimation /  Photo Capture Estimation /  Area Volume Estimation of a Gutter  from the SMART Sewer Overflow Volume Estimation Workbook. In the end, the Area Volume Estimation of the terrace and the Gutter were combined to determine the overall volume.  The secondary spill was determined by photo capture estimation.	The spill was discovered and reported by District staff. The origination of the spill is located in an easement on a terraced hillside that does not get much general public traffic and is not regularly observed. Attempts to interview the public were unsuccessful and for this reason we could only base the overflow start time on when the overflow was discovered.  The spill end time was determined by when staff were able to clear the blockage.	Debris-wipes/Non-disposables; Root Intrusion		Gravity Mainline		Other (specify below)	Asbestos Cement Pipe (ACP)	40	Minor impacts were observed based on downstream stormwater observations and canal observations. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below)		(7) staff members were dispatched to the spill event (1) Vac truck (1) Camera/Flusher truck combo  (1) Easement Flusher Truck  Because the spill on the terrace continued to seep down the hillside to the street gutter, staff stayed on site for approximately 24 hours capturing and returning all sewage back to the sanitary sewer.  All contaminated soil and absorbent was bagged and disposed of at the District treatment plant. 	Adjusted Schedule/Method of Preventive Maintenance		Increased Preventive Maintenance Frequency from 2 years to 1 year. Best practice information regarding the use of wipes was provided to the upstream senior care facility.	See attachments	06/21/2023 11:30	While clearing the blockage in the gravity main, a large mass of roots and wipes were pulled from the system.	N			Gallinas Creek Canal	Other (specify below)	Canal/Creek		None observed	Other (specify below)	None	N/A	0	N	N												
4	4SSO11365	Active	Unincorporated County Area CSMD South/County Sanitation District CS	Los Angeles Cnty DPW	888940	1.0	Certified	Robert Swartz	Sr. CE		30-JUN-23	30-JUN-23	Monthly Category 3 Spill	1588 - 4745 West Slauson Avenue, Windsor Hills (Unincorporated County Area)	06/07/2023 12:50	06/07/2023 13:15	06/06/2023 20:00				CSMD Map Sheet No. 1588 MMS No. 8280767 Plumbing trouble at 4745 West Slauson Avenue (Windsor Flowers)	33.98852	-118.36021	Other (specify below)	Floor Drain		60	Sewage spill discharged from a flower shop (Windsor Flowers) floor drain at 4745 West Slauson Avenue and contained within the business.  	N						0	Building or Structure		Sewage contained on property. 										06/07/2023 13:30	Visual estimate	Visual estimate	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		81	Water damage inside flower shop (Windsor Flowers).	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Property Owner Notified; Restored Flow		Hydo jet equipment was used to break down the mainline heavy grease blockage. Notified third party claims adjuster to mitigate damage. 	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Other (specify below)	To inspect sewer using CCTV to determine if further actions are needed.	To inspect sewer using CCTV to determine if further actions are needed and adjust maintenance accordingly. 		06/07/2023 15:00	The preliminary suspected cause is grease accumulation. A grease accumulation report will be submitted to Environmental Programs Division for investigation. Will also inspect mainline using CCTV.		N/A	08/28/2023 16:03														Grease accumulation report was forwarded to Environmental Programs Division to investigate.	N/A	Adjusted frequency of preventive maintenance to 90 days.	N/A	N/A	N/A	Preventive Maintenance No. S10S00267	N/A	N/A	
9	9SSO10700	Active	Buena CS	Buena Sanitation District	888941	1.0	Certified	kuna muthusamy	director public works	21-JUN-23	30-JUN-23	30-JUN-23	Category 1 Spill	Buena Creek Rd & Lone Oak Rd	06/19/2023 08:56	06/19/2023 09:30	06/19/2023 08:56	06/19/2023 10:48	23-3961		Spill was caused by private construction company performing work for the County of San Diego. County approved plans but did not reference existing sewer in their work zone. Incident occurred at Buena Creek Rd and Lone Oak Rd. 33.183102, -117.200887	33.18311	-117.20089	Gravity Mainline			477	Spill came out of broken pipe and went into creek but was soon mitigated by vactor truck pumping upstream. Broken pipe was later replaced with new PVC pipe.	Y	Natural watershed creek. 	0	477	One of the photographs shows broken pipe passing by creek. 	477	0	Surface Water		Spill came out of a pipe and flowed directly into a natural creek with low flow. Spill appearance point (33�10'59.3 N 117�12'02.9 W). Final spill destination unknown. 	Y	33.18313	-117.20081							06/19/2023 21:56	Estimation was calculated taking into account average flow levels recorded in city's sewer master plan and start and end time of spill. This was because the spill did not come directly from a manhole but a broken pipe.	We know when the spill began because the contractor contacted the city of Vista as soon as they realized they had broke our line. We consider the spill end time when our crew arrived on scene and was able to stop upstream flow from reaching the break. They continued to capture flow until a repair was made. 	Damage by Others Not Related to Collection System Construction/Maintenance	A contractor working on a project for the county of San Diego.	Gravity Mainline		Vitrified Clay		56	Approximately 477 gallons of sewage spilled into the creek. It is not known how far the spill traveled, as flows are low this time of year. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow	Notified Cal-OES, County Health and Regional waterboard. 	Crew arrived on scene and captured flow upstream using vactor combination trucks. This minimized the amount of gallons spilled until a repair was completed. It was not possible to capture the 477 gallons that initially escaped. 	Repaired Facilities or Replaced Defect		Contractor was notified that they need to locate our sewer pipes before digging and breaking them. 	Immediate action taken.	06/19/2023 09:56	A contractor working for the county of San Diego made the decision to dig without knowing the location of our gravity main and broke it open. 	N			Buena Creek	Other (specify below)	Creek		None that were apparent.	Other (specify below)	None. Spill did not occur in public right of way. 	County of San Diego	0	Y	N												
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	888947	1.2	Certified	Gerald Watson	Sanitation Wastewater Manager III		14-JUL-23	14-JUL-23	Monthly Category 3 Spill	2380 North Nichols Canyon Road	06/21/2023 22:10	06/21/2023 22:45	06/21/2023 22:10				The initial crew arrived at 10:45 P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.115409	-118.361243	Manhole			282	see attachment	N						282	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	The crew was able to establish containment and subsequently returned the entire amount to the sanitary sewer system.	Y	34.115409	-118.361243							06/21/2023 22:59	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.	On Wednesday, June 21, 2023, at 10:10 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 2380 North Nichols Canyon Road (TG 593-B2). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 10:59 PM. 	Debris-Rags		Gravity Mainline		Cast Iron		75	It was estimated that approximately 282 gallons of sewage backed out of the sewer as a result of the blockage.  The crew was able to establish containment and subsequently returned the entire amount to the sanitary sewer system.	N	Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		It was estimated that approximately 282 gallons of sewage backed out of the sewer as a result of the blockage.  The crew was able to establish containment and subsequently returned the entire amount to the sanitary sewer system. The crew was able to establish containment and subsequently returned the entire amount to the sanitary sewer system.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.		06/21/2023 22:59	). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 10:59 PM. The cause of the blockage was attributed to debris accumulation.		). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 10:59 PM. The cause of the blockage was attributed to debris accumulation.	06/21/2023 08:52														None at this time.	In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.		The crew removed the blockage, and the backup ceased at 10:59 PM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.	). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 10:59 PM. The cause of the blockage was attributed to debris accumulation.	
2	2SSO10177	Active	San Carlos City CS	San Carlos City	888975	1.0	Certified	Steven J. Machida	Public Works Director		23-JUN-23	23-JUN-23	Monthly Category 3 Spill	194 Laurel St	05/29/2023 20:21	05/29/2023 21:15	05/29/2023 20:15				37.510805, -122.265906 is the location of the spill which was located across the street from 194 Laurel st	37.510805	-122.265906	Manhole			385	The spill exited manhole AD/17 and flowed directly into CB-420	Y	Spill traveled through the storm drain system. Once the end point was located, it was vacuumed up with the combo truck.	384				385	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Spill was on the street and ran directly into the storm drain before being recovered. 	Y	37.510805	-122.265906							05/29/2023 20:32	Spill was determined using rate of flow and duration method for the entire amount and eyeball method for the 1 gallon that was on the street.	The crew spoke with an anonymous resident when they arrived on site who claimed he noticed it trickling around the rim when he went to this car. 	Debris-General; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Other (specify below)	PE	15	No known impact of the spill as it was cleaned up and removed from the storm system. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Blockage was cleared, street was cleaned and the impacted storm system was cleaned and vacuumed	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		CCTV was scheduled and viewed and sewer line was placed on FOG cleaning schedule.		05/29/2023 22:45	The CCTV showed no sign of problem areas in the pipe. It appears there was some sort of grease build of that initially caused the problem 167 feet upstream from manhole AD/18		CCTV was completed and line was cleaned.	05/31/2023 15:30														N/A	N/A	Added to 12 month FOG cleaning list	N/A	CCTV showed line open and clear	N/A, newer PE pipe in place	CMMS updated and can be provided upon request.	N/A	CCTV was completed and line was cleaned.	
5F	5SSO11226	Active	Exeter CS	Exeter City	888984	1.0	Draft Submitted			23-JUN-23			Category 1 Spill	555 W. Visalia Road 	05/27/2023 15:25	05/27/2023 15:40	05/27/2023 15:20	06/16/2023 10:20	23-3924		Manhole cover on N. Albert, just west of 555 W. Visalia Road. 	36.29795	-119.14996	Manhole	N/A	N/A	1210	The spill was contained to street/curb line over an area of approximately 150 yrds long. 	Y	No photos were taken, but some of the spill entered a storm drain inlet. 	0	300	Brick Yard Storm Retention Basin	300	0	Drainage Conveyance System that discharges to surface water; Paved Surface			Y	36.29797	-119.14996							05/27/2023 17:15	Estimates based on staff's experience and observations of the area.  	Staff documented times. 	Debris-General		Gravity Mainline		Vitrified Clay		60	The spill was contained to street/curb line over an area of approximately 150 yrds long. 	N			Crews responded with a vacuum truck and cleared obstruction. Area was washed down and sanitized using liquid chlorine. 	Added Sewer to Preventive Maintenance Program		More frequent checks of this manhole and cleaning as needed. 	None	05/27/2023 17:15	This spill was clearly caused by an obstruction in a gravity mainline. No investigation was needed. 	N			Brick Yard Storm Basin	Other (specify below)	storm water retention basin		None	Other (specify below)	This area is not accessed by the public. 	City of Exeter	0	N	N												
9	9SSO10710	Active	USMC Base, Camp Pendleton CS	US Marine Corps Base Camp Pendleton	889047	1.0	Certified	John Simpson	Director, Office of Water Security		06-JUL-23	06-JUL-23	Category 2 Spill	62 Area	06/21/2023 16:00	06/21/2023 16:00	06/21/2023 16:00	06/21/2023 17:30	23-4028		62 area alongside of San Mateo Dr. south of North Range Rd.	33.42145	-117.54028	Force Main			3000	Spill seeped up through asphalt alongside of San Mateo Dr. and flowed into adjacent ditch. Ditch was bermed and a vactor truck recovered spill at a rate of 10 gpm. Remainder of spill perked into soil.	Y	Spill water ran west alongside curbed area of the roadway. Entered an open concrete storm water channel and traveled 50 ft. then another 100 ft. south on dirt and percolated into the ground. Lat 33.3758809 Long -117.4783238. Spill path and final destination location: Storm drain 5th and Basilone. Lat 33.376916 Long -117.478454	700	2300			700	Drainage Conveyance System; Street/Curb and Gutter (2 3); Unpaved Surface		18-inch force main was compromised at fused coupling causing water to seep above ground. Spill water ran west alongside curbed area of the roadway. Entered storm water channel travelled 150 ft. south and percolated into the ground. Lat 33.3758809 Long -117.4783238. Spill path and final destination location: Storm drain 5th and Basilone. Lat 33.376916 Long -117.478454	Y	33.3758809	-117.4783238							06/21/2023 18:00	25 GPM EST. was seeping up from underneath the asphalt vicinity 33.421417   - 117.540369. 700 gallons recovered by two vactor trucks one 400gals the other 300 gallons. 	SSORP training determined 25 GPM EST. SSO Was Found by Mr. Brian Hinton Driving through on his way to PLT-12 and Emergency Response Crew arrived on scene at 6-21-2023 1630. Tracey Marrs made initial assessment. Calling for Vactor truck support.  	Pipe Structural Problem/Failure - Installation		Force Main		Other (specify below)	HDPE	10	None.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Diverted all additional flows into TAPS-12 clarifiers. Initialized 24hr vactor truck operation simultaneously with PATRIOT tanker trucks. Dirt berm was constructed in storm channel to allow flow to percolate into the ground. entrance to storm channel was wash down with pressure hose and vacuumed. Repaired the force main and returned to service.	Repaired Facilities or Replaced Defect		Diverted all additional flows into TAPS-12 clarifiers. Initialized 24hr vactor truck operation simultaneously with PATRIOT tanker trucks. Dirt berm was constructed in storm channel to allow flow to percolate into the ground. entrance to storm channel was wash down with pressure hose and vacuumed. Repaired the force main and returned to service.	None	06/21/2023 18:00	18-inch force main was compromised at fused coupling causing water to seep above ground.	N												N													
4	4SSO10388	Active	Glendale City CS	Glendale City	889112	1.1	Certified	DAN HARDGROVE	Assistant Director of Public Works		31-JUL-23	31-JUL-23	Monthly Category 3 Spill	2644 Pickens Ave.	06/15/2023 10:50	06/15/2023 11:23	06/15/2023 10:00				Spill was contained inside the bathroom of 2644 Pickens Ave.	34.21301	-118.23697	Inside Building or Structure			85	See photos and sketch.	N						85	Building or Structure		Reference Item 8.	Y	34.21301	-118.23697							06/15/2023 11:35	Wetted floor area measurements. See attachment. Entire volume of spill returned to sanitary sewer system.	Homeowner arrived to the spill in progress. Start time based on her best estimate due to circumstances upon arrival. End time was noted by the operators who relieved the stoppage.	Collection System Maintenance Failure (specify below); Root Intrusion		Gravity Mainline		Vitrified Clay		54	Minor damage to private residence.	N	Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Restored flow to city mainline. Resident contracted restoration contractor for their property.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Schedule for Chemical Root Control (CRC) - Fall 23 treatment cycle.	Adding to CRC program and increasing cleaning frequency to every 18 months from every 36 months. At time of CRC treatment, CMMS based maintenance tracking system will reset frequency for 18 months from application of treatment chemicals.		06/16/2023 08:15	CCTV found heavy roots in the mainline. Two instances.		N/A	06/16/2023 08:15														N/A	See Item 20 b.	See Item 20 b.	N/A	N/A	N/A	Attached: 1. Excerpt from Cityworks CMMS showing flush interval before events of 6/15/23-36 months. 2. Excerpt from Cityworks CMMS showing flush interval after events of 6/15/23-18 months. 3. Reminder for Chemical Root Control (CRC) Coordinator to schedule both sewer reaches (segments) downstream of lateral connection for 2644 Pickens Ave. for treatment October 2023.	N/A	N/A	
5S	5SSO10984	Active	Lake Wildwood CS	Nevada CSD No 1	889116	1.1	Certified	Brad Torres 	Wastewater Operations Manager		30-AUG-24	30-AUG-24	Monthly Category 3 Spill	Lake Wildwood dr and Huckleberry	06/26/2023 06:40	06/26/2023 07:10	06/26/2023 06:40				At the intersection of Lake Wildwood dr and Huckleberry Dr	39.24564	-121.19551	Manhole			134	On asphalt and concrete driveway	N						10	Other (specify below); Paved Surface	Driveways	the spill destinations were asphalt road and two concrete diveways	Y	39.24564	-121.1955							06/26/2023 07:34	Visual/ mathematical. A .5  vent hole with water coming up 1.5  is approximately 1.15 gallons per minute. .5  vent hole with water coming up 2  is approximately 1.33 gpm. this manhole had 2 vent holes total. and the total spill time is 54 minutes. 	Nevada County Sanitations answering service received the call at 6:40am, and the stop time was at 7:34. 	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		55	The impact of the spill was minimal. The end destination was an asphalt road and two concrete driveways.	N	Cleaned Up (specify below)		Cleared blockage by hydro jetting the gravity main and vactoring up any standing water. The contaminated areas were disinfected.	Inspected Sewer Using CCTV to Determine Cause		We inspected the sewer main and have added it to our regulatory CCTV schedule.		06/27/2023 06:31	We found out when we jetted the line that the blockage was caused by rags and a little grease. When we inspected the line, we found no signs of any failure in the pipe.		There are no ongoing investigation efforts at this time other than monitoring the section of pipeline.	06/27/2023 06:55														N/A	Added that section of main to our regulatory CCTV schedule. But theres not much we can do to stop people from flushing non flushable toilet wipes/sanitary wipes.	Added that section of main to our regulatory CCTV schedule.	N/A	We inspected that portion of the gravity main. No defects were found.	N/A	N/A	N/A	There are no ongoing investigation efforts at this time other than monitoring the section of pipeline.	
1	1SSO10014	Active	Eureka City CS	Eureka City	889124	1.0	Work In Progress						Monthly Category 3 Spill	Del Norte and Fairfield	06/26/2023 13:40	06/26/2023 13:45	06/26/2023 13:25				Manhole at GPS coordinates 40.79066, -124.17832 and a  public cleanout on the sidewalk in front of 1831 Fairfield.  See attached photographs.	40.79066	-124.17832	Gravity Mainline; Lateral Clean Out (Public)			150	Spill traveled WB of Del Norte towards Broadway then North along curb to DI at Broadway and W. Wabash and from Cleanout NB on Fairfield to DI at Broadway  and W. Wabash.  	Y	Storm drain system					150	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Spill was ultimately recovered in Strom drain manhole at Koster and W. Wabash	Y	40.79062	-124.17823	40.79137	-124.17836	40.79148	-124.17832	40.79149	-124.17914	06/26/2023 14:04	Visual 	Using known Collection System Collaborative Benchmarking Group Best Practices for SSO and Prevention and Response Plan.	Debris-General; Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		90	No impact, spill was fully recovered and returned into Sanitary Sewer System	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Cleared blockage, restored flow, and washed entire area to vacuum truck	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Spill location was CCTV for cause and PM schedule was adjusted. Noted for addition to CIP.		06/27/2023 13:57	CCTV'D line and found and removed roots that was hanging up the debris in the line.		None needed	06/27/2023 08:30														NA	Added to biannual maintenance schedule until replacement or repair.	This location PM schedule was adjusted to be rodded twice a year vs once a year.	Will be added to CIP list	Inspected via CCTV to determine defect.	Will be forwarded to Engineering for future CIP project.	The rodding list was adjusted and old list taken out.	None needed, followed Sanitary Sewer Management Plan.	None needed	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	889125	1.0	Certified	Ameal McLaurin	Sewer Supervisor 2	27-JUN-23	03-JUL-23	03-JUL-23	Category 1 Spill	42nd ave & Foothill blvd	06/25/2023 18:28	06/25/2023 19:45	06/25/2023 16:28	06/26/2023 11:29	23-4112		Spill location was at the corner of 42nd Ave & foothill Blvd., Oakland CA, in the sidewalk area.	37.77626	-122.21304	Lateral Clean Out (Public)	N/A	The spill came from our gravity main clean out in the sidewalk area on 42nd Ave & foothill Blvd. where 2925 gallons was discharged.	2925	Spill location was at the corner of 42nd Ave & foothill Blvd., Oakland ca in the sidewalk area. Two thousand nine hundred twenty-five gallons spilled from a clean out into a storm inlet onto the curb and gutter area.  	Y	Storm Inlet at the corner of 42nd Ave & foothill Blvd.	21	2904	Discharge point is from our gravity sewer main c/o in the sidewalk area at the inter section of 42nd Ave and foothill. Spilled sewage entered a storm inlet at 42nd Ave, and Foothill Blvd. 	2925	21	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water		Two thousand nine hundred and twenty gallons spilled from a clean out into the sidewalk area into an inlet.	Y	37.77561	-122.21284							06/25/2023 11:45	Start time was established by the witness account witnessing the spill. Photographs were taken, spill chart was used also to determine the volume calculations.	485 minutes x 5gpm=2925 gallons spilled. Start time was established by the witness account witnessing the spill. Photographs were taken, spill chart was used also to determine the volume calculations.	Fats, Oil and Grease (FOG)		Gravity Mainline	Spilled occurred at the clean out in the sidewalk.	Vitrified Clay		90	Two thousand nine hundred and twenty gallons spilled from a clean out in the sidewalk area into an inlet.	N	Restored Flow		Sidewalk, curb and gutter area was washed down, twenty-one gallons was captured and returned to collection.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Line will be placed on a three-month high frequency program; line will also be televised for further obstructions or abnormalities in the sewer main.	Line will be inspected and cleaned every three months.	06/25/2023 11:45	After CCTV inspection, there were signs of grease in the main line.	Y	We need ensure the integrity of pipe is intact. Also, that are any other blockages at this time.	07/03/2023 15:30	54th avenue, Peralta, Courtland, Seminary Creek	Other (specify below)	54th avenue, Peralta, Courtland, Seminary Creek		N/A	Other (specify below)	There was no public access impact.	N/A	0	N	N											We need ensure the integrity of pipe is intact. Also, that are any other blockages at this time.	
4	4SSO10431	Active	Santa Monica City CS	Santa Monica City	889126	1.0	Certified	Ralph Valencia	Water/Wastewater Administrator	28-JUN-23	28-JUN-23	28-JUN-23	Category 2 Spill	1011 11th Street	06/26/2023 14:00	06/26/2023 14:21	06/26/2023 09:00	06/27/2023 13:41	23-4138		Blockage in City main line caused sewage to discharge into the underground parking area at the address. Site personnel indicated sewage appeared from toilets and drains on the ground floor as well. 	34.02707	-118.49431	Other (specify below)	Clean out within underground garage.	 toilets and drains on ground floor	11600	Photographs show underground parking area that was affected by the SSO. Some bathrooms that may have been affected as well. Since spill was contained on private property, property owners/managers were notified to contact services for lawful disposal.	N						11600	Other (specify below)	contained in paved underground garage. Shall be disposed of lawfully.	Blockage caused by roots in the City main line caused sewage to overflow into underground parking structure from cleanouts.	Y	34.02707	-118.49431							06/26/2023 14:30	Calculated using the County Assessor's square footage of the garage and the observed approximate depth of the spill from photos taken during the response. 9308 sqft X 2inches X 7.48 = 11,603 gallons	Data recieved from LA County Assessors info...SM incorporates this data in GIS.	Root Intrusion		Gravity Mainline		Polyvinyl Chloride (PVC)		27	Residential- Apartment complex	N	Contained All or Portion of Spill; Other (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow	Contained on private property. Property manager shall contact services for lawful disposal. 	Property Management personnel relieved the units from backing up by opening clean-outs in the subgrade parking structure. Spill water was contained in this garage. City staff did not observe any discharge on the public right-of-way or storm drain (photo attached). City Wastewater crews hydrojetted the City main line and broke the blockage to restore flow. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		CCTV inspection revealed blockage was caused by severe root intrusion coming from an abandoned private lateral. The City shall contract out serviced to permanently seal that abandoned lateral to ensure it does not happen again. In addition, the City has put this sewer line on High Priority List to be serviced every 2 months. Up from every 4-6 months.	Contacted serviced to permanently seal abandoned line have not been scheduled yet as this issue occurred 1 day ago. Next service of the line will be in 2 months as it has been moved to the City's priority list.	06/27/2023 18:07	See above. CCTV inspection revealed severe root intrusion coming from abandoned private lateral. 	N												N													
3	3SSO10314	Active	Salinas City CS	Salinas City	889129	1.0	Certified	Gary Gabriel	Wastewater Manager		27-JUN-23	27-JUN-23	Monthly Category 3 Spill	31 N. Madeira Ave.	06/01/2023 18:04	06/01/2023 18:12	06/01/2023 17:37				Manhole at 31 N. Madeira Ave. was discovered trickling water when Salinas Fire Responded to site. Anonymous  caller reported manhole leaking. Manhole 36.67519 -121.63861	36.67519	-121.63861	Manhole		0	524	Sewage came from manhole and moved from center of street to curb and gutter area moving approx. 131 feet where it entered catch basin.  Photos attached to report.	Y	Sewage entered catch basin and moved through 12  storm lateral line that entered 36  storm drain main. Pictures attached to report showing trickle in storm drain manhole. 	10				524	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		Spill originated from manhole 36.67513 -121.63835 and moved down curb and gutter to storm drain catch basin 36.67547 -121.63822. And continued through 12  storm lateral off catch basin to 36  storm main. Pictures attached on storm drain manhole 36.67559 -121.63830 staff accessed  to recover and service.	Y	36.67513	-121.63835	36.67547	-121.63822	36.67559	-121.6383			06/01/2023 19:01	Staff used Area/Volume method calculation worksheet attached to uploaded report. picture comparison was also used to determine discharge.	Used methodology based on callers information provided to Salinas Fire. Caller indicated at 17:30 pm no visual signs of discharge from manhole. But at 17:45 pm caller noticed wet area around manhole. Based on this information staffs assumption was the spill started at around 17:37 pm	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		60	Impacted area included paved road surface and curb and gutter area along with catch basin and storm system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Salinas Fire called on-call staff which was already at work dealing with a service call quickly responded to site to contain spillage by installing earthen dam before catch basin. Staff removed blockage from sewer system with Vac-con truck and restored flow. Then staff started recovery efforts by setting up Vac-con truck on manhole to service and vacuum impacted storm system. Staff washed down effected pavement and curb and gutter area capturing all wash water returning back to sewer system.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Increase manhole inspection at this site to monthly inspections on our revised Sewer Manhole Service Maintenance Check List uploaded as an attachment to this report. Distribute FOG door hangers in the impacted area.		06/01/2023 19:43	Staffs investigation into contributing factors that caused SSO were discussed during briefing and determined after CCTV findings. It was determined that FOG was the contributing factor  along with non disposable wipes that caused the SSO. 		None	06/05/2023 10:00														None	O&M program modification will include monthly hydraulic inspections of manhole impacted.	Revised Sewer Manhole Service Maintenance Checklist requiring increased inspections at manhole located at 31 N. Madeira. Ave.	None needed at this time.	CCTV Inspection  occurred on 6/5/23 of sewer system to determine if there was any defects or issues that caused the SSO. Nothing was found to have caused or contributed to overflow in system in regards to condition.	None scheduled	Attached to this report revised Manhole Service Maintenance Checklist for overflow location 31 N. Madeira Ave.	Additional Training to be provided to staff which will include additional post SSO analysis. And spill emergency response plan procedures. 	None	
3	3SSO10250	Active	Guadalupe City CS	Guadalupe City	889134	1.0	Certified	David R Miklas	Wastewater Supervisor	06-JUL-23	06-JUL-23	06-JUL-23	Category 2 Spill	Corner of Mahoney Ln. and Pagaling Dr.	06/23/2023 20:31	06/23/2023 20:55	06/23/2023 20:15	06/27/2023 16:41	23-4143		Manhole at the corner of Mahoney Ln and Pagaling Dr. There was a blockage in the sewer gravity main down stream of this manhole. 	34.9610165	-120.5809	Gravity Mainline; Manhole			1464	The spill came out of the manhole and went down the gutter. A city employee used a backhoe loader to put a pile of dirt in front of the storm drain containing the spill to the gutter. 	N						1450	Street/Curb and Gutter (2 3)		Spill from manhole into gutter in front of 4894 Pagaling Dr. Wastewater traveled 360 feet and was stopped in front of 287 Mahoney Ln. A city employee used a backhoe loader to put a pile of dirt in the gutter to contain the spill a approximately 21:15. 	Y	34.9617461	-120.580775							06/24/2023 09:35	Used Google Earth to outline spill area and get the square footage (1175ft2 ) multiplied by an average depth of 2 inches (0.1666 ft2 ) multiplied by 7.48 gallons per cubic foot gives 1464 gallons spilled. The contractor recovered 1450 gallons. Leaving a wet stain on concrete and asphalt of about 14 gallons (1175ft2 X 0.0013 ft2 {wet stain on concrete depth} X 7.48 gallons per foot= 11.4 gallons). 	Staff received a call from a resident about a spill at 20:30. The resident refused to give their identity or contact information. Staff was present with the contractor when the spill was stopped.	Debris-General; Debris-wipes/Non-disposables		Manhole		Polyvinyl Chloride (PVC)		9	No impact. The spill was contained to the street and gutter. It was collected by a vacuum truck. The area was disinfected and cleaned.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		A backhoe loader was used to put a pile of dirt in front of a storm drain containing the spill to the curb and gutter on the street. A contractor was contacted to provide a Jetter/vacuum truck. A jetter was used to clear the blockage in the sewer gravity main. The blockage was paper. The vacuum truck collected the spill. Every wet area was disinfected with bleach. 	Other (specify below)	Placing a manhole monitor in this manhole to notify wastewater staff if the manhole is filling. With this warning staff can prevent a spill from occurring. 	Placing a manhole monitor in this manhole to notify wastewater staff if the manhole is filling. With this warning staff can prevent a spill from occurring.	Staff will have the manhole monitor in place before July 31, 2023	06/24/2023 01:00	The line that had the blockage was jetted as routine maintenance on Wednesday June 21, 2023. This spill happened on Friday June, 2023. 	N												N													
5S	5SSO11303	Active	Jamestown SD CS	Jamestown SD	889142	1.1	Certified	Nickolas Rivera	Operations Supervisor / CPO	28-JUN-23	25-JUL-23	25-JUL-23	Category 2 Spill	18725 Highway 108 Jamestown CA 	06/25/2023 21:22	06/25/2023 22:00	06/25/2023 18:30	06/26/2023 01:00	23-4103		Gravity main backed up into a private lateral spilling into an open field type area.	37.96274	-120.40531	Gravity Mainline; Lateral Clean Out (Private)			2520	Grassy bank. 20ft x 20ft area.	N						0	Unpaved Surface		Gravity main backed up into a private lateral spilling into an open field type area.	Y	37.96246	-120.40513							06/26/2023 00:45	We used our Scada system data and reenacted spill flow volume at our wastewater plant using a warf head.	We relied upon caller and property manager for spill start time. 	Debris-General; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline; Lower Lateral		Concrete		50	Gravity main backed up into a private lateral spilling into an open field type area.	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow	Raked and cleaned affected area. disinfected with bleach and spread lime on affected area	Raked and cleaned affected area. disinfected with bleach and spread lime on affected area. racked and cleaned up lime after affected area was dry.	Adjusted Schedule/Method of Preventive Maintenance		Staff has added this line to our hot spot cleaning list. 	6/25 spill started 6/26 spill corrected and clean up began 7/7 spill response completed	07/07/2023 12:00	It was determined that rags,roots and FOG were the cause of the sso	N												N													
2	2SSO10142	Active	Town Of Hillsborough CS	Town Of Hillsborough	889150	1.2	Certified	Rick-Gabriel Pina	Superintendent 	28-JUN-23	26-JUL-23	26-JUL-23	Category 2 Spill	50 Warmwood way	06/12/2023 10:00	06/12/2023 10:00	06/05/2023 10:00	06/12/2023 12:04	233835		Spill was seeping from dirt and mud in back yard of 50 Warmwood way manhole buried under 7ft of mud from mudslide.	37.55426	-122.3683	Other (specify below)	Seeping through dirt and mud		2880	spill in dry creek	N						2880	Other (specify below)	Dry creek	Soil saturation along mainline into dry creek area	Y	37.55422	-122.36808							06/12/2023 19:00	Flow and duration of time	Spill time was based on interviews with neighbors and completion of temporary main installation. 	Debris-General; Natural Disaster (specify below)	Mud slide on property 	Gravity Mainline		Other (specify below)	Plastic liner	7	Since the spill was caused by mud slide, the spill required new alignment to sewer main.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Plugged storm drain over a 1,000 feet away. Flow and seepage did not go far on its own. Staff called in emergency contractor to dug and expose main. Contractor replace main for temporary flow.  Contactor came back over the next weeks to remove spoil and repair sewer main and manhole.	Repaired Facilities or Replaced Defect		Repaired manhole and mainline	none	06/22/2023 09:52	Property sustained large mud slide and shifted sanitary assets	N												N													
5S	5SSO10898	Active	City Of Live Oak CS	Live Oak City	889155	1.0	Certified	Tony Wright	CPO		28-JUN-23	28-JUN-23	Monthly Category 3 Spill	Live Oak Blvd	06/27/2023 13:30	06/27/2023 13:45	06/27/2023 13:15				Manhole overflow across from Arco gas station.	39.276197	-121.66127	Force Main			75	Manhole overflow because of rags blocking the main line. Approximately 75 gallons.	N						75	Paved Surface		The spill was on pavement and was contain with sandbags.										06/27/2023 15:15	Used the contents of the vacuum tank to gauge approximately how many gallons.	Used the contents of the vacuum tank to gauge approximately how many gallons.	Debris-Rags		Force Main		Vitrified Clay		40	No impact.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Personal arrived with vac truck, jetted sewer main. Vac up the spill and clean the affected area with water.	Adjusted Schedule/Method of Preventive Maintenance		Ensured that the sewer line in this section of town is regularly cleaned.		06/28/2023 12:40	NA		None	06/28/2023 15:15														NA	Put on a preventive maintenance program.	Yes	None	NA	NA	NA	None	None	
5S	5SSO11001	Active	Modesto CS	Modesto City	889156	1.0	Certified	Robert Englent	Wastewater Collection System Superintendent		06-JUL-23	06-JUL-23	Monthly Category 3 Spill	1437 Baywood Dr	06/12/2023 12:58	06/12/2023 13:42	06/10/2023 18:00				See attachment	37.66783	-121.01611	Upper Lateral (Private)	Upper cleanout @ 1437 Baywood Drive		50	Sewage spilled into neighbor's backyard from the cleanout. Most of the spill went onto concrete, some went into landscaping. 	N	N/A	0				1	Paved Surface; Unpaved Surface		Spill covered approximately 20sqft of patio. Patio was washed down into the cleanout.										06/12/2023 14:05	Visual estimation. Established a flow of 0.02 GPM x 2,6454 minutes.	Residents interviewed stated start time was 6/10/23 at 18:00. Stated flow was not continuous and stopped at 14:05 on 06/12/23 	Root Intrusion		Gravity Mainline; Upper Lateral		Vitrified Clay		68	Spill covered approximately 20sqft of patio and some landscaping. Patio was washed down into the cleanout.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	CCTV Inspection	Mainline stoppage was cleared at 14:05 on 06/12/2023. Spill from upper cleanout at patio was cleaned and lateral flushed. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Added to Root foaming PM	Line segment SSO10104 CCTV inspection. Line was changed from a 3 year cleaning schedule to a 1 year cleaning schedule and added to root foaming preventative maintenance schedule.  		06/12/2023 15:26	CCTV found tap, medium and fine roots throughout pipe. Chain Flailed line to remove heavy roots. Segment changed from a 3 year cleaning schedule to a 1 year cleaning schedule and added to root foaming preventative maintenance schedule.  		None	06/19/2023 12:31														N/A	Line segment SSO10104 CCTV inspection. Line was changed from a 3 year cleaning schedule to a 1 year cleaning schedule and added to root foaming preventative maintenance schedule.  	Line segment SSO10104 CCTV inspection. Line was changed from a 3 year cleaning schedule to a 1 year cleaning schedule and added to root foaming preventative maintenance schedule.  	None	CCTV inspection was performed June 13, 2023	None	See Attached	Jet/Vac cleared mainline blockage, took photographs of approx. 20sqft of patio, patio washed down and back into upper cleanout. CCTV inspection found  tap, medium and fine roots throughout pipe. Line Chain Flailed to remove heavy roots. Segment changed from a 3 year cleaning schedule to a 1 year cleaning schedule and added to root foaming preventative maintenance schedule.     	None	
2	2SSO10179	Active	San Jose City CS	San Jose City	889162	1.3	Certified	Ben Nguyen	Senior Engineer		30-AUG-23	30-AUG-23	Monthly Category 3 Spill	Salt Lake Drive and Kiperash Drive San Jose CA 95133	06/08/2023 13:57	06/08/2023 14:13	06/07/2023 20:00				The spill appearance point was a manhole at the intersection of Salt Lake Drive and Kiperash Drive. The sewage traveled along the curb and guttered and  entered the two storm CBs on the Kiperash drive which were less than 50 feet away.  see attached photo.	37.3867	-121.84777	Manhole			95	Spill originates at the MH and water sheet flowed across pavement toward both storm drainage inlets located on both side of the street.  Water enter the storm drain inlets but only traveled less than two segments downstream. Crew found a dry MH at  Salt Lake Drive and Salt Lake Ct.	Y	The two affected storm drain inlets are connected to the City of San Jose's municipal storm sewer system.  Water traveled less than two segments downstream.  The first responder found and confirmed a end manhole at Salt Lake Drive and Salt Lake Ct.	62				95	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		The spill reached nearby two storm drain inlets along the Kiperash Drive, approximately 41 feet from the appearance point.   The two storm drain inlets are connected to the City of San Jose's municipal storm sewer system.  The responding crew contained the spill in the downstream storm manhole using sandbags.   All the sewage and the induced water was vacuumed using the two truck combo method from the storm manhole.  The first responder confirmed downstream dry end manhole in the MS4 at Salt Lake Drive and Salt Lake Ct.	Y	37.3867	-121.84762	37.3868	-121.84771	37.38534	-121.84731			06/08/2023 14:25	Spilled volume was estimated based on measurement of the wet pavement and water areas in the curb and gutter.  Water depth on pavement was not measurable and was assumed in the calculation. Total spilled volume was estimated at 95 gallons; of which 33 gallons were recovered from pavement/curb/gutter; and 62 gallons were recovered from MS4.  	Spilled volume was estimated based on measurement of the wet pavement and water areas in the curb and gutter taken by first responder.  Water depth on pavement was not measurable and was assumed in the calculation.  PR noticed wet pavement from the night before.  Since crew found dry MH at 2 segment downstream, spill was assumed to be intermittent and not a constant overflow.  	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		39	All the spill was recovered and thus no impact.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Crew places sandbags and spill mat over the inlets upon arrival.  Crew place sandbags in dry MH downstream. Crew induced water at appearance point and vacuum them up at the dry MH Salt Lake Drive and Salt Lake Ct.	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause		Distributed grease flyers to nearby residents. Revised the cleaning cycle to 24 months from 84 months.		06/08/2023 15:18	The cause of the spill was grease.		NA	07/31/2023 10:55														NA	NA	NA	NA	NA	NA	NA	Distributed grease flyers to nearby residents. Revised the cleaning cycle to 24 months from 84 months.	NA	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	889250	1.0	Certified	Ameal McLaurin	Sewer Supervisor 2		30-JUN-23	30-JUN-23	Monthly Category 3 Spill	240 Monte Vista ave	06/24/2023 13:00	06/24/2023 14:00	06/24/2023 12:00				The location of the spill was located on the side of the house coming from a private lateral clean out. our sewer main is on a easement that is located on the same side as the clean out it runs in between the address 240 & 248 Monte Vista. the spill ran down the side of the house into the dirt area. (see Attachments)	37.82369	-122.25098	Lateral Clean Out (Private)		spill point was also at  the address 248 Monte Vista, in there basement they have a floor drain that the spill entered in through. ounce our sewer main was cleared the spill that was in the basement at 248 Monte Vista returned back to the system.	644	The location of the spill was located on the side of the house coming from a private lateral clean out. our sewer main is on a easement that is located on the same side as the clean out it runs in between the address 240 & 248 Monte Vista. the spill ran down the side of the house into the dirt area, boundaries was the dirt area 8' x 3' x 6  and the walk way down the side of the house. walk way was 4' wide and 8' long. (see attachments)	N	N/A	0				0	Unpaved Surface		The spill was located on the side of the house leading into the dirt area in front of the house, and also in the basement of 248 Monta vista that covered 8'x 4' x 6' of concrete flooring that also was returned to the sewer system ounce the sewer main was cleared. (see Attachment)		37.82369	-122.25098	37.82362	-122.2507					06/24/2023 15:30	By talking with the customer and the neighbor we came up with a starting point time, we added the starting time with the time that we took down after clearing the blockage which was our ending time that came out to be, 210 mins x 2 gpm = 420 gal and then we added up the dirt area and boundaries that came out to be 8'L x 2.5W x 6 = 89.6. Then we added up the spill in the basement at the address 248 Monte Vista. 12' x 2.5 x .05 x 7.48 = 112.2. (see Attachments)	By talking with the customer and the neighbor we came up with a starting point time, we added the starting time with the time that we took down after clearing the blockage which was our ending time that came out to be, 210 mins x 2 gpm = 420 gal and then we added up the dirt area and boundaries that came out to be 8'L x 2.5W x 6 = 89.6. Then we added up the spill in the basement at the address 248 Monte Vista. 12' x 2.5 x .05 x 7.48 = 112.2. (see Attachments)	Root Intrusion		Gravity Mainline		Vitrified Clay		100	The dirt area was impacted during the cause of the spill, at depth of 1'x8'Lx4'W.	N	Cleaned Up (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		We arrived at the job site and located the spill on the side of the house on the easement, we set up our equipment at the down stream m/h and cleared the blockage that restored the flow. We wash down the walk way area with disinfect and clean the basement at 248 Monte Vista and also wash that down with disinfect. (see Attachments)	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		We will set this line segment up on a preventive maintenance program and continue to prevent the reoccurrence of the spill 		06/24/2023 19:00	We CCTV our sewer main finding that the line has a major root intrusion.  We have Rodd and Hydro flush our main and set this line segment up on a 3 mo. maintenance program.		We will CCTV our sewer main the next business day to determine the cause of the spill. (see Attachments)	06/26/2023 09:30														N/A	We will set this line segment up on a preventive maintenance program and continue to prevent the reoccurrence of the spill 	We will set this line segment up on a 3-mo., preventive maintenance program with Rodding of tree roots.	After doing our investigation with the CCTV unit will determine if the line needs to be replaced or rehab. 	We have inspected the asset and determined that this asset has major roots infiltration. We will set this up on a preventive maintenance program.	N/A	We have work orders that will provide proof of modifications of our maintenance program for this line segments. 	Staff cleared blockage, restored flow, were necessary cleaned and disinfected area. 	We will CCTV our sewer main the next business day to determine the cause of the spill. (see Attachments)	
5F	5SSO11202	Active	City of Fresno CS	County of Fresno	889253	1.2	Certified	Arturo Alvarez	Wastewater Manager, Certified	05-JUL-23	14-JUL-23	14-JUL-23	Category 2 Spill	1665 M St.	06/29/2023 14:43	06/29/2023 14:50	06/29/2023 11:00	07/05/2023 15:59	23-4324		Spill originated from the private cleanout at 1665 M St. (located in alleyway) and the manhole upstream (located on San Joaquin St.).	36.74229	-119.79474	Lateral Clean Out (Private); Manhole			1961	Street/curb & gutter; paved surface (alleyway); unpaved surface (flowerbed); 1 Fresno Metropolitan Flood Control District (FMFCD) MH; 1 FMFCD drain inlet (DI)	Y	1 FMFCD DI; 1 FMFCD MH	3	0			1961	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		Paved alleyway, sidewalk, flowerbed, street/curb & gutter; storm drain inlet (FMFCD DI), storm mainline (FMFCD), storm manhole (FMFCD MH).	Y	36.7422	-119.79463	36.74273	-119.7953	36.74245	-119.79569	36.74232	-119.79577	06/29/2023 15:42	The spill volume estimation was calculated by estimating the volume of the total spill area.	Maintenance staff at the healthcare center reported the spill start time of 11:00 on 06-29-2023. Collection System Maintenance Responders broke the mainline blockage at 15:42, ending the spill.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		126	There is no known sustained impact from this spill. During the Primary Responder's field investigation, he noticed people milling outside near the spill area(s) and thus prioritized containment/clean-up and remediation, conducting a preliminary inspection of the mainline after the spill had ended.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Primary Responder immediately determined extent of spill impact to FMFCD assets, and found the spill in the storm system to be contained from one DI to one MH. Spill area was contained, blockage broken, and the affected areas and FMFCD assets were cleaned.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Video inspection was unable to identify the FOG source. Investigation has been turned over to Environmental Control Officers (ECO) and is ongoing.  No defects were identified, within the sewer main, at the location of the blockage. If no FOG source is identified by the ECO group, a SmartCover will be placed upstream of the blockage location.  Data retrieved will be used to set an adjusted schedule of preventive maintenance.	Investigation of FOG source - One week SmartCover installation - Immediately after ECO inspection report received, if no FOG source was identified. SmartCover will be in place for at least six months and based on the data retrieved, may be extended.	06/29/2023 17:34	Received call from FresGO at 14:43, started heading to the area at 14:46. Arrived at 14:50 & checked MH 2655-11. It was holding; contacted Secondaries BS at 15:00 & RG at 15:06 so they could bring out combos. The plumbers were on site in the alleyway behind 1665 M Street. Richard (Maint. Sup. for 1665 M St.) & plumber stated the cleanout starting spilling at 11:00. I checked the upstream MH 2655-74, it was actively overflowing. I followed the spill to a FMFCD DI located at the northeast corner of L St. and San Joaquin St. At 15:10 I diverted the overflow so it wouldn't spill further into the FMFCD assets; and it only made it to the FMFCD MH in the intersection of L St. & San Joaquin St. After the spill area was contained, I checked the MH downstream of 2655-11, 2655-14; it was not holding. We flushed from 2655-14 towards 2655-11 and broke the stoppage at 15:42. The blockage was located 100 ft. upstream of 2655-14; the cause was grease. Affected areas were documented and cleaned.	Y	Wastewater Management Division ECOs are conducting an investigation into the source of excessive grease (FOG) affecting the sewer mainline.	07/21/2023 17:00										N												Wastewater Management Division ECOs are conducting an investigation into the source of excessive grease (FOG) affecting the sewer mainline.	
5F	5SSO11202	Historical	City of Fresno CS	County of Fresno	889253	1.2	Certified	Arturo Alvarez	Wastewater Manager, Certified	05-JUL-23	14-JUL-23	14-JUL-23	Category 2 Spill	1665 M St.	06/29/2023 14:43	06/29/2023 14:50	06/29/2023 11:00	07/05/2023 15:59	23-4324		Spill originated from the private cleanout at 1665 M St. (located in alleyway) and the manhole upstream (located on San Joaquin St.).	36.74229	-119.79474	Lateral Clean Out (Private); Manhole			1961	Street/curb & gutter; paved surface (alleyway); unpaved surface (flowerbed); 1 Fresno Metropolitan Flood Control District (FMFCD) MH; 1 FMFCD drain inlet (DI)	Y	1 FMFCD DI; 1 FMFCD MH	3	0			1961	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		Paved alleyway, sidewalk, flowerbed, street/curb & gutter; storm drain inlet (FMFCD DI), storm mainline (FMFCD), storm manhole (FMFCD MH).	Y	36.7422	-119.79463	36.74273	-119.7953	36.74245	-119.79569	36.74232	-119.79577	06/29/2023 15:42	The spill volume estimation was calculated by estimating the volume of the total spill area.	Maintenance staff at the healthcare center reported the spill start time of 11:00 on 06-29-2023. Collection System Maintenance Responders broke the mainline blockage at 15:42, ending the spill.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		126	There is no known sustained impact from this spill. During the Primary Responder's field investigation, he noticed people milling outside near the spill area(s) and thus prioritized containment/clean-up and remediation, conducting a preliminary inspection of the mainline after the spill had ended.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Primary Responder immediately determined extent of spill impact to FMFCD assets, and found the spill in the storm system to be contained from one DI to one MH. Spill area was contained, blockage broken, and the affected areas and FMFCD assets were cleaned.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Video inspection was unable to identify the FOG source. Investigation has been turned over to Environmental Control Officers (ECO) and is ongoing.  No defects were identified, within the sewer main, at the location of the blockage. If no FOG source is identified by the ECO group, a SmartCover will be placed upstream of the blockage location.  Data retrieved will be used to set an adjusted schedule of preventive maintenance.	Investigation of FOG source - One week SmartCover installation - Immediately after ECO inspection report received, if no FOG source was identified. SmartCover will be in place for at least six months and based on the data retrieved, may be extended.	06/29/2023 17:34	Received call from FresGO at 14:43, started heading to the area at 14:46. Arrived at 14:50 & checked MH 2655-11. It was holding; contacted Secondaries BS at 15:00 & RG at 15:06 so they could bring out combos. The plumbers were on site in the alleyway behind 1665 M Street. Richard (Maint. Sup. for 1665 M St.) & plumber stated the cleanout starting spilling at 11:00. I checked the upstream MH 2655-74, it was actively overflowing. I followed the spill to a FMFCD DI located at the northeast corner of L St. and San Joaquin St. At 15:10 I diverted the overflow so it wouldn't spill further into the FMFCD assets; and it only made it to the FMFCD MH in the intersection of L St. & San Joaquin St. After the spill area was contained, I checked the MH downstream of 2655-11, 2655-14; it was not holding. We flushed from 2655-14 towards 2655-11 and broke the stoppage at 15:42. The blockage was located 100 ft. upstream of 2655-14; the cause was grease. Affected areas were documented and cleaned.	Y	Wastewater Management Division ECOs are conducting an investigation into the source of excessive grease (FOG) affecting the sewer mainline.	07/21/2023 17:00										N												Wastewater Management Division ECOs are conducting an investigation into the source of excessive grease (FOG) affecting the sewer mainline.	
6A	6SSO11117	Active	Susanville Sanitary District CS	Susanville SD	889270	1.1	Certified	Steve Stump	General Manager		10-JUL-23	10-JUL-23	Monthly Category 3 Spill	2965 johnstonville rd	06/29/2023 22:52	06/29/2023 21:35	06/29/2023 16:30				m/h in dirt field	40.41019	-120.63318	Manhole			50	no photo was taken at 1030 pm. The spill extended approx 20 feet from the manhole and the ground absorbed approximately 30 gallons of water. Surface areas were vactored clean.	N						20	Unpaved Surface		Spill travelled approx 20 feet at the coordinates above.										06/29/2023 22:00	Estimating by visual of approximate 5 gallon buckets	From time that the call came in to when the plug was cleared the visual was estimated.	Pump Station Failure - Power	possible power flick due to a lighning storm in the area	Pump Station - Power		Polyvinyl Chloride (PVC)		40	There was little to no impact due to the ability to vactruck the spill.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		vactored up approx 20gal from dirt area	Other (specify below)	check stations at end of day	check station twice a day. Usually this power unit comes back on when the city power is restored. For some reason the power did not reset. We will troubleshoot the battery power and replace the battery backup if needed. 		06/30/2023 13:50	power failure at lift station		none	06/29/2023 20:00														n/a	n/a	hours are checked daily during the week.	no	reset backup battery	none	n/a	restored flow and cleaned up spill	none	
3	3SSO18097	Active	Pajaro County Sanitation District Collection System	Pajaro County Sanitation District	889275	1.1	Certified	Tom Moss	Senior Water Resources Hydrologist	30-JUN-23	05-MAR-24	05-MAR-24	Category 1 Spill	Pajaro River at Highway 1	03/13/2023 10:14	03/13/2023 10:14	03/12/2023 10:14	03/18/2023 18:17	23-2024	01-AUG-23	See attachment.	36.88379	-121.77252	Force Main			800000	Wastewater from the broken force-main was conveyed downstream in the floodwater that had inundated the farm fields south of the Pajaro River, west of Highway 1.	N				The broken force-main was located on the south side of the Pajaro River at Highway 1.  See Attachment.	800000	0	Other (specify below); Unpaved Surface	See attached report.	See attached report.	Y	36.88386	-121.77242							03/24/2023 07:42	See attached report.	See attached report	Natural Disaster (specify below)	The Pajaro River levee failure resulted in south overbank flooding.  The constriction between the Highway 1 embankment and the Pajaro River levee resulted in increased flow rates under the highway, scouring of the levee, and failure of the force main.	Force Main		Other (specify below)	HDPE	28	There was a significant amount of floodwater passing under Highway 1 at the Pajaro River causing erosion and failure of the sewer force main.  When floodwater receded, there was no noticeable impact of the spill.	Y	Cleaned Up (specify below); Returned Portion of Spill to Sanitary Sewer System	The remaining ponded water under Highway 1 was pumped back into the sanitary sewer system, and bleach was applied to the ground.	See attachment.	Repaired Facilities or Replaced Defect		On October 12, 2023, a second temporary bypass project was completed under Highway 1 which relocated the broken section of the force main outside of the levee prism.  It was placed inside a steel casing for added protection.  	See attached report.	10/12/2023 17:00	See attachment.	N			Pajaro River and Pacific Ocean	Ocean; River		The Pajaro River is located immediately north of the force main, and the Pacific Ocean is approximately 4.25 river miles to the west of the force main break.	There were no observed impacts to aquatic life.	Other (specify below)	The extent of any public access limitations is not known at this time.	Monterey County Environmental Health Department	0	N	Y	See attached report.	see attached report.										
4	4SSO11447	Active	Calabasas City CS (SSO)	Calabasas City	889278	1.2	Certified	Robert Swartz	Sr. CE	03-JUL-23	10-JUL-23	10-JUL-23	Category 1 Spill	1192 - 3544 Mesquite Drive, Calabasas	05/18/2023 13:58	05/18/2023 14:53	05/18/2023 13:58	05/18/2023 15:37	233278		CSMD Map Sheet No. 1192 MMS No. 8243356 Sewage spill discharged from broken pipe between Manhole's 429 and 428.	34.13259	118.64434	Other (specify below)	Broken pipe		1350	Sewage discharged from broken pipe into Dry Canyon - PD 1845 - Calabasas, which connects to Los Angeles River.	N				Sewage discharged from broken pipe into Dry Canyon - PD 1845 - Calabasas, which connects to Los Angeles River.	1350	500	Drainage Conveyance System that discharges to surface water; Unpaved Surface		Sewage discharged from broken pipe (Lat: 34.13259 - Lon: 118.64434) into Dry Canyon - PD 1845 - Calabasas, which connects to Los Angeles River.	N									05/18/2023 19:36	Visual and SSCSC Manhole Overflow Gauge	Time of notification, visual, and SSCSC Manhole Overflow Gauge	Other (specify below)	Unknown - contractor digging in the area.	Gravity Mainline; Other (specify below)	Broken pipe	Vitrified Clay		76	Sewage discharged from broken pipe (Lat: 34.13259 - Lon: 118.64434) into Dry Canyon - PD 1845 - Calabasas, which connects to Los Angeles River.	N	Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow	   	Sewage spill was reported by an anonymous caller. Sewage discharge was coming out of a hole in the ground between Manhole Nos. 429 and 428. Set up containment and contained portion of sewage spill. Notified all proper authorities of the incident. Bypass line was set up to relieve the overflow. Pump watch was in effect throughout the night.    	Other (specify below)	We will continue with the current maintenace and inspection schedule.	N/A	N/A	05/18/2023 22:53	excavation by unknown contractor breached the sewer pipe.  	N			Los Angeles River	River			N/A	Other (specify below)	No impact.	N/A	0	N	N												
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	889280	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		17-JUL-23	17-JUL-23	Monthly Category 3 Spill	823 South Union Avenue          	06/30/2023 11:08	06/30/2023 13:12	06/30/2023 13:15				Photo shows Maintenance Hole Overflowing at 823 South Union Avenue.  Latitude: 34.5160646 Longitude: -118.272883	34.516646	-118.272883	Manhole			129	Photo shows Maintenance Hole Overflowing at 823 South Union Avenue.  Latitude: 34.5160646 Longitude: -118.272883	N						129	Paved Surface		The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system. Latitude: 34.5160646 Longitude: -118.272883	Y	34.5160646	118.272883							06/30/2023 13:15	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation	SPILL FLOWRATE AND VOLUME DETERMINATION BASED ON FLOWOUT PICKHOLE OR OPENING DIAMETER OF PICKHOLE OR OPENING 0.75INCHES HEIGHT OF WATER OUT OF PICKHOLE/OPENING 0.25INCHES FLOWRATE PER PICKOLE/OPENING (GPM) 1GPM # OF PICKHOLES/OPENINGS 1 TOTAL FLOWRATE (GPM) 1GPM DURATION OF SPILL (MINUTES) 127MINUTES TOTAL FLOW (GALLONS) 129GALLONS	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		128	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	N	Cleaned Up (specify below); Returned All Spill to Sanitary Sewer System		The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	Adjusted Schedule/Method of Preventive Maintenance		In an effort to prevent future incidents at this location the sewer will be placed on a semi-annual cleaning schedule.		06/30/2023 13:15	A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 1:15 PM. The cause of the blockage was attributed to Fats, Oil and Grease (FOG) accumulation.		None at this time.	06/30/2023 13:15														None at this time.	This location the sewer will be placed on a semi-annual cleaning schedule.		No repairs required at this time.	No repaires required at this time.	No repaires required at this time.		The crew removed the blockage and the backup ceased at 1:15 PM. The cause of the blockage was attributed to Fats, Oil and Grease (FOG) accumulation. All necessary clean-up was then performed.	None at this time.	
5F	5SSO11309	Active	Livingston City CS	Livingston City	889321	1.0	Certified	Tony Avina	Public Works Superintendent		03-JUL-23	03-JUL-23	Monthly Category 3 Spill	Sun Valley Av.	06/30/2023 03:00	06/30/2023 03:00	06/30/2023 02:55				The spill originated at the failed sewer lift station at Briarwood and Oakwood, the actual spill came out at Sun Valley Street from the sewer man holes at four sewer man holes. 	37.37266	-120.72845	Manhole	Sewer spilled from four manholes on Sun Valley drive.	manholes in the same area	400	The spill originated at the failed sewer lift station at Briarwood and Oakwood, the actual spill came out at for different manholes on sun valley drive.	Y	The storm drains that are next to the sewer man holes that leaked drained into a holding pond.	0				400	Other (specify below)	percolation pond where sewage run off settled and drained	The sewage was captured in the storm drainage pond.	Y	37.37193	-120.72975	37.37193	-120.72889	37.37219	-120.72838			06/30/2023 05:00	Kick the bucket method.	 eyeball estimation of approximately four   55-gal drum knocked over estimated 385 to 400 gallons.	Pump Station Failure - Mechanical		Pump Station - Mechanical		Polyvinyl Chloride (PVC)		20	Failed sewer lift station caused sewer to spill manhole openings	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow		discharge went into dedicated storm percolation pond. all areas where sewage spilled was chlorinated and washed down.	Repaired Facilities or Replaced Defect		More routine checks on this sewage lift station.		06/30/2023 19:00	none		none	07/03/2023 10:00														OES was notified.	modifications have been made.	yes, check lift station more often.	Back up pumps are on the shelf for backup.	All repairs have been made..	none at this time.	not yet.	continue spill response activities.	none	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	889322	1.1	Certified	Ameal McLaurin	Sewer Supervisor 2		07-JUL-23	07-JUL-23	Monthly Category 3 Spill	240 Monte Vista ave	06/26/2023 20:44	06/26/2023 22:00	06/26/2023 20:05				240 Monte Vista ave from the private lateral c/o on the side of the house. The same side our sewer main runs on. (See Attachment Photos) 	37.82369	-122.25098	Lateral Clean Out (Private)	N/A		470	The spill start was from right side of property Lateral clean Out, leading down the walkway into the driveway and unpaved surface, in the dirt area, ending at the street gutter area. The boundaries are 8' L x 3' W. The total spill calculated was done from Private Lateral Spill Rates of 235 mins x 2 GPM = gal Total spill 470 gal.	N	N/A	0				0	Street/Curb and Gutter (2 3); Unpaved Surface		The destination of the spill occurred in the dirt area of the front yard and the drive way at 240 monte vista ave. (see Attachments) Photos and the curb and gutter, outside the property.	Y	37.82369	-122.25098							06/27/2023 00:00	The spill start was from right side of property Lateral clean Out, leading down the walkway into the driveway and unpaved surface, in the dirt area, ending at the street gutter area. The boundaries are 8' L x 3' W. The total spill calculated was done from Private Lateral Spill Rates of 235 mins x 2 GPM = gal Total spill 470 gal. 	We talked with the owner of the property and the neighbors to determine the start time of the spill and the end time was determined when we restored the flow to our sewer system.	Root Intrusion		Gravity Mainline		Polyvinyl Chloride (PVC); Vitrified Clay		100	There was nothing impacted during the spill.	N	Cleaned Up (specify below); Restored Flow		We  located where the spill was coming from and set our equipment up at the down stream man hole and flush up stream to the blockage of root and cleared the blockage of roots. we also set our hydro flusher up in the street area and cleaned up the drive way.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		we cctv our sewer main to determine the cause of the spill and will set this line segment up on a preventive maintenance program. 		06/26/2023 12:00	We cctv our sewer main to determine the cause of the spill and will set this line segment up on a preventive maintenance program. The cause of the spill was major roots		No the investigation has been completed.	06/26/2023 08:10														N/A	Rodding this line segment every 3 months to clear the  roots to prevent the spill from occurring. 	Rodding this line segment every 3 months to clear the  roots to prevent the spill from occurring. 	Not at this time	N/A	N/A	yes there is a cctv report for this line segment.	We  located where the spill was coming from and set our equipment up at the down stream man hole and flush up stream to the blockage of roots and cleared the blockage of roots. we also set our hydro flusher up in the street area and cleaned up the drive way.	No the investigation has been completed.	
5S	5SSO10965	Active	Hangtown Creek CS	Placerville City	889323	1.2	Certified	Nick Stone	Director of Public Works	20-JUL-23	24-JUL-23	24-JUL-23	Category 1 Spill	3128 cedar ravine road	06/26/2023 12:34	06/26/2023 12:50	06/26/2023 06:00				one appearance point .  38.72569 -120.79433	38.72569	-120.79433	Gravity Mainline			420	Out of the sewer cleanout and down the creek 	Y	yes	5	420	Cleanout on mainline.	420	5	Drainage Conveyance System that discharges to surface water; Surface Water		spill left a two way cleanout  and ran down embankment to creek water a away.	Y	38.72568	-120.79429	38.72578	-120.79429	38.72569	-120.79435	38.72797	-120.79578	06/26/2023 14:38	we assumed the spill started around 6:00am because the homeowner stated that his neighbor said he smelled it that morning around 7:30am when walking the dog but the night before there was no smell.  homeowner said he thinks it started around that time too cause toilet acted funny when he got up that morning after 6:00 am.  flow was about a 1 gal a min or less when we arrived on scene. 	when we arrived on scene the flow less than 1 gallon per minute.  but due to the time when the spill started we assumed that the rate would have been higher earlier in the day. 1gpm x 7hrs = 420 gal.	Debris-General		Gravity Mainline		Cast Iron		60	minimal ./	N	Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		cleaned up around the cleanout and cleaned up any debris that was left on the creek edge.	Inspected Sewer Using CCTV to Determine Cause		scheduled for a cleaning with flusher tuck.	yes	06/26/2023 13:15	investigation determined that the spill was caused by toiletry paper and feminine products .	N			cedar ravine creek	Stream/Creek			no adverse affect observed. 	Other (specify below)	no public access. private property.	no	0	N	N												
3	3SSO10307	Active	Pismo Beach CS	Pismo Beach City 	889335	1.0	Certified	William Haas	Utilities Manager	04-JUL-23	04-JUL-23	04-JUL-23	Category 1 Spill	1780 Morro/ Ocean Blvd intersection.	07/03/2023 18:30	07/03/2023 18:30	07/03/2023 18:30	07/03/2023 20:30	23-4294		We responded to a pump fail at Vista Del Mar lift.  During the course of trying to restore the pumps we had rising levels.  We deployed our Vactor truck, but could not keep up with the flow. Placed spill kits at storm drains with sand backs to slow the flow. Called in backup pump trucks, but restored power before their arrival.  Cleaned up area, storm drains and gutters with Vactor.	35.15537	120.67702	Manhole			600	Manhole upstream of lift station over flowed.	Y	Manhole flowed directly to a storm drain. We placed spill kits to slow the flow.   	0	0	Drain leads directly to ocean.  not an accessible point to take photos at the moment.  Stairs are closed/under construction.	600	0	Drainage Conveyance System that discharges to surface water	manhole overflow to storm drain tat leads to ocean.	spilled to storm drain at the intersection of Morro and Ocean Blvd.  	Y	35.15537	120.67702							07/03/2023 19:00	Spill volume estimated by flow.  Peak flow was approximately 25gpm and while vactoring flow was as low as 0-5gpm.  Event was 30min and estimated to the high side of volume.	on site when spill began.  	Pump Station Failure - Power		Manhole		Acrylonitr. Butadiene Styrene (ABS)		1	600 gallons entered storm drain.  Most entered the ocean.  	N	Mitigated Effects of Spill (specify below)	Deployed pump truck.  placed spill kit barriers at storm drains.  Hosed and vacuumed up spill and cleaned drains.	Deployed pump truck.  placed spill kit barriers at storm drains.  Hosed and vacuumed up spill and cleaned drains.	Repaired Facilities or Replaced Defect		Electrical fixed at lift station.  Improvements to electrical system planned for future scheduling.  	n/a	07/03/2023 19:00	Found a faulty fuse at lift station that prevented power to pumps. High flows due to holiday weekend made it difficult to keep up with and backup  pumper trucks were called ASAP.  	N			Pacific Ocean	Ocean			none	Other (specify below)	none.  stairs are currently under construction.  Closest access point is >100yds. 	Pismo Beach	0	N	N												
1	1SSO11419	Active	Humboldt CSD CS	Humboldt CSD	889338	1.1	Certified	Tim Latham	Superintendent	06-JUL-23	17-JUL-23	17-JUL-23	Category 1 Spill	Herrick and Noe	07/01/2023 10:46	07/01/2023 10:57	07/01/2023 10:40	07/01/2023 13:45	23-4256		Spill location was the intersection of Herrick Avenue and Noe Street. The cause was a crack in a sewer pressure main line (force main).	40.75751	-124.18205	Force Main	N/A	N/A	1200	Approximately 600 gallons flowed down the side of Noe Street for approximately 225 feet and entered a storm drain. Approximately 600 gallons flowed down the other side of Noe Street for approximately 295 feet and entered a vegetated area and absorbed into the ground	Y	Approximately 600 gallons of the spill flowed down the side of Noe Street and into a storm drain. We believe the spill moved through the storm drain system and into surface waters. There was no standing waters in the drainage conveyance system	0	600	Unknown location of final appearance point to surface waters. Due to the location of the spill, it is believed that the spill entered the Elk River Slough, which flows into Humboldt Bay	600	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Surface Water; Unpaved Surface		Paved surface to a drainage conveyance system that flows to a surface water and a paved surface that flows to an unpaved surface and absorbed into the ground	N									07/01/2023 11:40	Visual observation. 	Spill start time was estimated by the distance the spill had traveled by the time the operator was on-site. Crews were on site when spill ended.	Other (specify below)	Crack in the sewer pressure main line (force main)	Force Main		Other (specify below)	Asbestos Cement Pipe	50	Half of the spill possible went into Elk River Slough, which flows to Humboldt Bay and into the Pacific Ocean. Minimal impact due to volume and eventual receiving waters.	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow		Once the District was notified of the spill, an operator was on-site within 11 minutes of the notification. The operator immediately called in crews and shut the pump station off to minimize the spill volume. Crews arrived on scene and controlled the pump station with Vac-con trucks to haul the sewage to a dumping location in the collection system. Additional crews cleaned up the affected areas and made repairs to the cracked sewer pressure main line returning the system to normal operations. The District had 11 District employees and 2 outside agencies assisting with response and repair activities. All agencies notified including Cal OES, Humboldt County Environmental Health Services, Regional Water Quality Control Board, and the State Water Resources Control Board Shellfish Pre-harvest Protection Unit. 	Repaired Facilities or Replaced Defect		The District will be evaluating the sewer pressure main line and looking into future replacement.	In the future. As time and money allows.	07/01/2023 23:00	Crack in asbestos cement pressure sewer main line (force main).	N			Elk River Slough, Humboldt Bay, Pacific Ocean	Ocean; Other (specify below); Slough	The spill went into Elk River Slough which flows into Humboldt Bay and the Pacific Ocean.		None	Other (specify below)	None  	N/A	0	N	N												
4	4SSO11374	Active	Unincorporated County Area CSMD-NW/County Sanitation District CS	Los Angeles Cnty DPW	889342	1.1	Certified	Robert Swartz	Sr. CE		12-JUL-23	12-JUL-23	Monthly Category 3 Spill	28920 Avenue Williams, Valencia, CA 91355 (Unincorporated County Area)	06/07/2023 13:25	06/07/2023 15:00	05/16/2023 11:25				Broke down stoppage from MH 42 using hydro jetter and set up vacuum truck to clean up spillage and washed down using fresh water, see attached photographs.	34.44447	-118.63623	Gravity Mainline; Manhole	Manhole No. 37		900	Broke down stoppage from MH 42 using hydro jetter and set up vacuum truck to clean up spillage and washed down using fresh water, see attached photographs.	N						900	Unpaved Surface		Broke down stoppage from MH 42 using hydro jetter and set up vacuum truck to clean up spillage and washed down using fresh water.										06/07/2023 15:21	CWEA SSCSC Manhole gauge, visual/eyeball method, and time notified of incident.	CWEA SSCSC Manhole gauge, visual/eyeball method, and time notified of incident	Debris-Rags; Vandalism (specify below)		Gravity Mainline; Manhole		Vitrified Clay		26	Broke down stoppage from MH 42 using hydro jetter and set up vacuum truck to clean up spillage and washed down using fresh water.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow		Broke down stoppage from MH 42 using hydro jetter and set up vacuum truck to clean up spillage and washed down using fresh water.	Adjusted Schedule/Method of Preventive Maintenance		SMD will televise from manhole 36 to 42 and make a recommendation for periodic cleaning pending the results.		06/07/2023 17:51	Pending once MHs 42 to 36 are televised.		Will inspect sewer CCTV to determine if further actions are needed.	08/07/2023 13:25														N/A	SMD will televise from manhole 36 to 42 and make a recommendation for periodic cleaning pending the results.	SMD will televise from manhole 36 to 42 and make a recommendation for periodic cleaning pending the results.	N/A	N/A	N/A	N/A	N/A	Will inspect sewer CCTV to determine if further actions are needed.	
3	3SSO10272	Active	Greenfield, City Of CS	Greenfield City	889346	1.1	Certified	Jamie Tugel	Public Works Director	05-JUL-23	11-JUL-23	11-JUL-23	Category 2 Spill	647 Vazquez Ave	07/04/2023 12:33	07/04/2023 12:33	07/04/2023 12:25	07/04/2023 15:38	23-4303		Tyler lift Station was the originating Failure point:  36.3157, -121.2387.  A part broke on the single pump in the dry well.  To repair the pump, it had to be shut down.  A pump service was called in and rain for rent to set up the staged bypass pump at the location.  The pump was repaired and back in service prior to the bypass pump being completely set up.  Prior to the repair being complete, the two lowest manholes in this system overflowed.   First manhole overflow, with manhole lid in place:  36.31662, -121.2354  Second manhole overflow, with manhole lid in place:  36.3176, -121.2357 Both manhole overflows entered storm drains that lead to a percolation pond that does not release any water to any other facilities or surface waters.  The streets, drainage conveyance system and perc pond were all disinfected with chlorine and washed down.  	36.3166	-121.23545	Manhole			1312	Spill was contained to the gutters, drain inlet, storm drain pipe, and small area of a percolation pond, where is terminated.  Percolation pond: 36.31819494869851, -121.23588605745553.  A spill boundary sketch is attached	Y	The drainage conveyance system terminates in a percolation pond.  	0	1312			0	Other (specify below)	percolation pond	Tyler lift Station was the originating Failure point:  36.3157, -121.2387.  A part broke on the single pump in the dry well.  To repair the pump, it had to be shut down.  A pump service was called in and rain for rent to set up the staged bypass pump at the location.  The pump was repaired and back in service prior to the bypass pump being completely set up.  Prior to the repair being complete, the two lowest manholes in this system overflowed.   First manhole overflow, with manhole lid in place:  36.31662, -121.2354  Second manhole overflow, with manhole lid in place:  36.3176, -121.2357 Both manhole overflows entered storm drains that lead to a percolation pond that does not release any water to any other facilities or surface waters.  The streets, drainage conveyance system and perc pond were all disinfected with chlorine and washed down.  	Y	36.31659	-121.23542	36.31758	-121.23575					07/04/2023 13:06	Utilized flow estimation pictures within the City's SSO Response Plan;  flow estimation pictures provided by City of San Diego.	Called Superintendant at 12:19pm to inquire if there was a SSO, report was negative.  I arrived at the SSO MH at 12:33pm to check again, and the MH was overflowing.  I estimated that the overflow had been occurring for a short time, predicting that the overflow began between 12:19pm and 12:33pm.  I estimated a start time of 12:25pm to err on the side on the overflow.	Pump Station Failure - Mechanical	a part broke on the lift station pump	Manhole		Ductile Iron		25	The SSO was low threat to public health.  The spill consisted of grey water, which traversed a small section of asphalt to get to the gutter.  Once in the gutter, the grey water entered a storm drain, ran through a storm drain pipe, and terminated in a percolation pond.  There was minimal impact on the percolation pond as the grey water percolated swiftly.  	N	Mitigated Effects of Spill (specify below)		The City had a sanitary pump truck pumping at the lift station in efforts to prevent a SSO, however, the tuck could not keep up with the amount of flow.  Once the lift station pump was repaired, staff immediately  disinfected the roadway, gutter, and storm drain, which then provided disinfectant to the percolation pond.	Repaired Facilities or Replaced Defect		As the lift station currently has 1 pump, there is a bypass pump and piping staged in the immediate vicinity in the event of a catastrophic failure.  Staff immediately called the contractor to mobilize and set up the bypass, even close the roads to traverse the road with piping.  The contractor was 10 minutes away form start up of the bypass pump when I received word that the pump was repaired and functioning.  At that time, the wet well level dropped and the bypass was no longer necessary.  The second pump for this lift station was ordered in February 2023, and has just arrived.  I anticipate to have both pumps running prior to the end of July 2023.	Jan 2023- both pumps failed due to storm Feb 2023 -1 new pump ordered April 2023- 2nd pump had been re-wound, installed for solo use June 2023- new pump arrived, assembly scheduled. July 2023- complete drop in and start up of new pump July 2023- both pumps fully functioning, release of the staged bypass pump and piping	07/04/2023 15:38	Due to excessive vibration of the pump, the filter assembly was constantly moving and eventually sheared off at the threads.	N												N													
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	889350	1.1	Certified	Ameal McLaurin	Sewer Supervisor 2		07-JUL-23	07-JUL-23	Monthly Category 3 Spill	2432 Scout Road, Oakland Ca	07/04/2023 10:32	07/04/2023 11:15	07/04/2023 10:30				Mainline Lamp-Hole in the rear of the property was overflowing onto the dirt in the rear of the property. 	37.82248	-122.2035	Gravity Mainline; Other (specify below)	Mainline Lamp-Hole in the rear of the property was overflowing.		450	Lamp-Hole was spilling onto unpaved surface in the rear of the property.	N						0	Unpaved Surface		Spill soaked into the ground from the rear of the property, with estimated measurements of 30' Length x 6' Width.										07/04/2023 11:30	90 Minutes x 5 GPM = 450 Gallons discharged.	Estimated time start was based on caller, he was notified by his neighbor. The end time was noted when the mainline clog was cleared by sewer crew on the field.	Debris-wipes/Non-disposables; Root Intrusion	Heavy debris-Wipes/Non-Disposables with light roots blockage.	Gravity Mainline		Other (specify below)	Polyethylene	28	Spill soaked into the ground from the rear of the property, with estimated measurements of 30' Length x 6' Width.	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow		Restored flow, crew cleaned the spill area with rakes and shovels removing the discharged solid waste.	Added Sewer to Preventive Maintenance Program		Mainline placed on 6 Month High Frequency Maintenance Program.		07/06/2023 14:00	CCTV inspection showed the mainline to be in good condition. Heavy debris-Wipes/Non-Disposables was the cause for the blockage. 		Investigation completed; CCTV inspection showed the mainline to be in good condition.	07/06/2023 14:00														N/A	Mainline placed on 6 Month High Frequency Maintenance Program. CCTV inspection showed the mainline to be in good condition.	Mainline placed on 6 Month High Frequency Maintenance Program.	N/A, CCTV inspection showed the mainline to be in good condition.	CCTV inspection showed the mainline to be in good condition. 	N/A, CCTV inspection showed the mainline to be in good condition.	Mainline placed on 6 Month High Frequency Maintenance Program. Work Order # 1442158	Mainline placed on 6 Month High Frequency Maintenance Program. Work Order # 1442158	Investigation completed; CCTV inspection showed the mainline to be in good condition.	
5F	5SSO11310	Active	Los Banos City CS	Los Banos Urban Area SW System	889358	1.0	Certified	Soknirorn Than	Public Works Director		18-JUL-23	18-JUL-23	Category 2 Spill	Greenbriar & Park Sharon	07/03/2023 07:06	07/03/2023 07:20	07/03/2023 07:06				Sewer coming out of two Manholes in close proximity of each other . See Attachment	37.0652812	120.8184944	Manhole		Second manhole cover in close proximity.	2250	Sewer was captured at conveyance point just down stream. See Attachment	Y	See Attachment	2250	0			2250	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Sewer was coming from the poke hole of one manhole. and seeping around the other manhole. From there it traveled to curb and gutter and ultimately got to near by storm catch basin. See Attachment for cleanup details 	Y	37.0653	-120.8185	37.06531	-120.81849					07/03/2023 09:30	Spill volume calculated using poke hole height measurement at time of arrival	Poke hole in inches multiplied by time until spill was stopped  7:06 pm to 9:30pm	Debris from Construction		Manhole		Polyvinyl Chloride (PVC)		25	Wet asphalt and entered storm catch basin where it was collected 	N	Cleaned Up (specify below); Returned All Spill to Sanitary Sewer System		After discovering the lift station issue multiple members of staff we're contacted to assist in the cleanup. Using a Vaccon truck with high pressure hose to wash down the street and storm drains while being vacuumed up	Other (specify below)	Talk with contractors and residence about what belongs in the sewer/toilets	Reach out to contractors about allowing trash and or test equipment to be disposed of in sewer laterals  of new construction. 	Talked with contractor about trash and or equipment going down sewer laterals.	07/05/2023 01:00	After pulling pumps @ sewer lift station it was determined that cause of the SSO was construction testing equipment 	N		07/03/2023 08:47										N													
2	2SSO10135	Active	Foster City CS	Foster City PWD	889368	1.0	Certified	Frank Schoening	Foster City PW Superintendent	06-JUL-23	06-JUL-23	06-JUL-23	Category 2 Spill	Intersection of Hillsdale Blvd and Gull Ave	07/05/2023 12:31	07/05/2023 12:40	07/05/2023 12:30	07/05/2023 18:25	23-4328		Pump station #10 force main was hit by Crown Castle Fiber while boring for a new communication line. They bored through the sewer force main in the intersection of E Hillsdale Blvd and Gull Ave. 37.56932 Latitude -122.26528 Longitude.  	37.56932	-122.26528	Force Main			3200	The spill was at the intersection of Hillsdale Blvd and Gull Ave. the pump station was shut off and the flow was stopped. The spill was contained in the storm drain and sucked out with a vacuum truck.	Y	The sewage from the force main went into the Catch basin on the south west corner of Hillsdale Blvd and Gull Ave. 	3200	0			3200	Drainage Conveyance System; Street/Curb and Gutter (2 3)		The spill came out of the crack between the street and gutter. Went down gutter into nearby catch basin. 	Y	37.56931	-122.26528							07/05/2023 15:10	Duration and flow rate calculation method along with eyeball estimation method was used to estimate the volume of the spill. The catch basin and piping was sucked out using vacuum truck. 	Contractor was on site when damage accrued. He called as soon as it happened. when crew arrived the pumps where shut off. 	Damage by Others Not Related to Collection System Construction/Maintenance		Force Main		Concrete		50	The sewage from the force main went into the Catch basin on the south west corner of Hillsdale Blvd and Gull Ave. The sewage was returned to the sanitary system	N	Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Arrived at location and immediately shut off pumps. Made sand bag dam around catch basin and vacuumed out catch basin.	Repaired Facilities or Replaced Defect		Keep a closer eye on contractors . Have an inspector at any location when there is critical infrastructure near by. Day light all force mains when boring in being preformed.	corrective action and steps to prevent this type of spill will start immediately.	07/05/2023 15:10	The cause of spill was human error on the construction company Crown Castle.	N												N													
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	889374	1.2	Certified	Gerald Watson	Sanitation Wastewater Manager III		27-MAR-24	27-MAR-24	Category 1 Spill	2025 South Shenandoah Street	07/05/2023 14:55	07/05/2023 15:55	07/05/2023 14:55	07/05/2023 19:51	23-4330		2025 South Shenandoah Street (TG 632-H5). 	34.110041	-118.385612	Manhole	Drain pipe coming from property at 2025 South Shenandoah	None.	576	Sanitary Sewer Overflowing	Y	Ballona Creek	404	172	Sanitary Sewer Overflow	172	404	Other (specify below)	Ballona Creek	34.110041  118.385612	Y	34.110041	118.385612							07/05/2023 16:27	Diameter of pickhole or opening1inches Height of water out of pickhole/opening3inches Flowrate per pickole/opening (gpm)6gpm # of pickholes/openings1 Total flowrate (gpm)6gpm Duration of spill (minutes)92minutes Total flow (gallons)576gallons  	Spill flowrate and volume determination based on flowout pickhole or opening 	Debris-General		Gravity Mainline; Manhole		Concrete		95	It was estimated that approximately 576 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish partial containment, and was able to recover 404 gallons of sewage. The remaining 172 gallons of sewage entered an adjacent County of Los Angeles owned catch basin at the intersection of Guthrie Avenue and Holt Avenue, which is tributary to Ballona Creek.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned Portion of Spill to Sanitary Sewer System		On Wednesday, July 5, 2023, at 2:55 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 2025 South Shenandoah Street (TG 632-H5). A CWCD crew was immediately dispatched to the incident location and determined that the 10-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 4:27 PM.	Adjusted Schedule/Method of Preventive Maintenance		Adjusted Maintenance/Cleaning Schedule.	None At This Time.	07/05/2023 16:27	The cause of the blockage was attributed to debris accumulation. 	N		07/05/2023 16:27	Ballona Creek	Other (specify below); Reservoir	Ballona Creek	Ballona Creek	None At This time.	Other (specify below)	None.	Beaches and Harbor	0	N	Y	None At This Time.	None At This Time.										
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	889376	1.5	Certified	Gerald Watson	Sanitation Wastewater Manager III		22-MAR-24	22-MAR-24	Monthly Category 3 Spill	15101 Pacific Coast Highway	07/05/2023 10:46	07/05/2023 11:20	07/05/2023 10:46				No photos. Latitude: 34.032221 Longitude: -118.526775	34.032221	-118.526775	Manhole			400	No photos. Latitude: 34.032221 Longitude: -118.526775	Y	The crew was able to establish partial containment, of the amount released, 20 gallons soaked into the ground, the remaining 380 gallons entered an adjacent City of Los Angeles owned catch basin at 15101 Pacific Coast Highway, which flows into a Low Flow Diversion Structure, and the 380 gallons of sewage was returned to the sewer system. 	380				380	Other (specify below)	The crew was able to establish containment and subsequently they returned the partial amount to the sewer system.	The crew was able to establish partial containment, of the amount released, 20 gallons soaked into the ground, the remaining 380 gallons entered an adjacent City of Los Angeles owned catch basin at 15101 Pacific Coast Highway, which flows into a Low Flow Diversion Structure, and the 380 gallons of sewage was returned to the sewer system. 	Y	34.02221	-118.526775							07/05/2023 13:05	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.	SPILL FLOWRATE AND VOLUME DETERMINATION BASED ON FLOWOUT PICKHOLE OR OPENING DIAMETER OF PICKHOLE OR OPENING 0.75INCHES HEIGHT OF WATER OUT OF PICKHOLE .125 # OF PICKHOLES 1 DURATION OF SPIL 139 MINUTES VOLUME 400 GALLONS	Debris-Rags		Gravity Mainline		Vitrified Clay		65	The crew was able to establish partial containment, of the amount released, 20 gallons soaked into the ground, the remaining 380 gallons entered an adjacent City of Los Angeles owned catch basin at 15101 Pacific Coast Highway, which flows into a Low Flow Diversion Structure, and the 380 gallons of sewage was returned to the sewer system. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		The crew was able to establish partial containment, of the amount released, 20 gallons soaked into the ground, the remaining 380 gallons entered an adjacent City of Los Angeles owned catch basin at 15101 Pacific Coast Highway, which flows into a Low Flow Diversion Structure, and the 380 gallons of sewage was returned to the sewer system. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.		07/05/2023 01:06	A CWCD crew arrived at the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage, which was attributed to debris. The crew proceeded to remove the blockage and the backup ceased at 1:05 PM. All the necessary clean-up steps were performed.		None at this time.	07/05/2023 01:06														None at this time.	This location will be placed on a quarterly cleaning schedule.	This sewer will be placed on a quarterly cleaning schedule	Repairs have been requested.	Repairs have been requested.	Repairs have been requested.		The crew proceeded to remove the blockage and the backup ceased at 1:05 PM. The cause was attributed to debris. All the necessary clean-up steps were performed.	None at this time.	
4	4SSO11540	Active	Fillmore Sewage CS	Fillmore City	889379	1.1	Certified	Joe Bellomo	Public Works Director		18-OCT-24	18-OCT-24	Monthly Category 3 Spill	SR 126 approximately 500' east of C St. intersection of C St.	07/06/2023 11:10	07/06/2023 01:00	07/06/2023 00:30				SR 126 approximately 500' east of C St. intersection of C St.	34.39503	-118.92671	Manhole			475	Area immediately around the manhole and bypass pumping 	N						475	Paved Surface; Street/Curb and Gutter (2 3)		Bypass pump failure caused manhole to surcharge and overflow 										07/06/2023 01:00	Visual estimation 	Visual estimation 	Operator Error (specify below); Other (specify below)	Contractor error. pump watch 	Manhole		Vitrified Clay		30	None expected 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Returned All Spill to Sanitary Sewer System		Patriot Environmental was called out vacuumed up all spill material and returned it to the sanitary sewer system. The area was washed down with a pressure washer and was captured and returned as well  	Other (specify below)	Discuss spill response with contractors 	The City of Fillmore was not notified by the contractor until several hours after the incident occrued 		07/06/2023 15:30	NA		NA	07/06/2023 15:32														NA 	NA		NA	NA	NA		NA	NA	
5F	5SSO10961	Active	Groveland CS	Groveland CSD	889380	1.0	Work In Progress						Monthly Category 3 Spill	20610 Longview St	07/05/2023 16:55	07/05/2023 17:05	07/05/2023 16:40				Spill was located at Manhole #2200 near 20610 Longview Street Groveland CA 95321	37.85609	-120.18662	Manhole			84		N							Street/Curb and Gutter (2 3); Unpaved Surface			Y	37.85581	-120.18696							07/05/2023 17:35	Measured volume estimation 		Debris-wipes/Non-disposables; Root Intrusion		Gravity Mainline		Polyvinyl Chloride (PVC)		53	Spill reached unpaved surface and curb and gutter. No solids or debris visible.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System			Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Hydro flushed main and planned repair 	Hydro flushed line to clean and remove roots, planned repair for later date.		07/06/2023 15:00	Main line was blocked due to root intrusion/disposable rags. 		N/A	07/06/2023 15:00														N/A	N/A	N/A	N/A	Inspected will repair at a later date.	No	none	None	N/A	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District	889396	1.3	Certified	John J. Hough	San Dist. Superintendent	10-JUL-23	19-JUL-23	19-JUL-23	Category 1 Spill	329674	07/05/2023 08:28	07/05/2023 08:56	07/05/2023 08:27				See Attached Spill Map.	38.6372	-121.2658	Pump Station			49	See Attached Spill Map.	Y	See Attached Spill Map.	14	0	See Attached Spill Map.	30	19	Drainage Conveyance System that discharges to surface water; Paved Surface; Surface Water; Unpaved Surface		See Attached Spill Map.	Y	38.6369	-121.2656							07/05/2023 09:16	See Attached Spill Volume Estimation.	See Attached Spill Volume Estimation.	Other (specify below)	Pipe Structural Problem/Failure - Cracked Pipe	Force Main		Other (specify below)	Asbestos Concrete Pipe (ACP)	49	No observed impacts of the spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified Sacramento County Department of Water Resources Drainage.	SacSewer M&O crews used a hydro-vacuum truck to clean all above-ground surfaces and the drainage conveyance system. 	Repaired Facilities or Replaced Defect		SacSewer excavated the force main at S011 on July 5, 2023. Based on the findings, SacSewer repaired the cracked segment of the force main.	SacSewer temporarily repaired force main 7/5/23. SacSewer anticipates completion of the permanent repair 7/19/23.	07/05/2023 16:42	See attached Description of Event.	N			American River	River			No observed impacts to aquatic life.	Other (specify below)	Spill did not impact public access to water body.	N/A	0	N	N												
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	889400	1.2	Certified	Gerald Watson	Sanitation Wastewater Manager III		22-MAR-24	22-MAR-24	Monthly Category 3 Spill	10517 West Wyton Drive	07/08/2023 14:45	07/08/2023 15:51	07/08/2023 14:45				The initial crew arrived at 3:51 P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. A contractor was mobilized to by pass and repair the line.	34.072909	-118.435575	Manhole			229	It was estimated that approximately 229 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.  	N						0	Unpaved Surface	 The entire back up amount soaked into the ground.	It was estimated that approximately 229 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.  	Y	34.072909	-118.435575							07/08/2023 20:30	The SSO volume was estimated utilizing a standardized template which calculates the volume by using dimensional analysis.	Volume of a spill contained in a rectangular area Length5feet Width5feet Depth6inches0.5000feet  Volume of a spill contained in a rectangular area Length3feet Width3feet Depth24inches2.0000feet  18.00ft3135gallons  	Damage by Others Not Related to Collection System Construction/Maintenance		Gravity Mainline		Concrete		91	It was estimated that approximately 229 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.  	N	Restored Flow		The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.  	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		On Saturday, July 9, 2023 at 2:45 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 10517 West Wyton Drive (TG 632-C1). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. Contractors setup a bypass pump, and the event ended at 8:30 PM. The cause of the blockage was a broken sewer line. All necessary clean-up was then performed.		07/08/2023 20:30	). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. Contractors setup a bypass pump, and the event ended at 8:30 PM. The cause of the blockage was a broken sewer line. All necessary clean-up was then performed.		None.	07/08/2023 20:30														None.	). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. Contractors setup a bypass pump, and the event ended at 8:30 PM. The cause of the blockage was a broken sewer line. All necessary clean-up was then performed.		). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. Contractors setup a bypass pump, and the event ended at 8:30 PM. The cause of the blockage was a broken sewer line. All necessary clean-up was then performed.	). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. Contractors setup a bypass pump, and the event ended at 8:30 PM. The cause of the blockage was a broken sewer line. All necessary clean-up was then performed.	None.		). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. Contractors setup a bypass pump, and the event ended at 8:30 PM. The cause of the blockage was a broken sewer line. All necessary clean-up was then performed.	None.	
2	2SSO10216	Active	West County WW District CS	West County Wastewater District	889403	1.2	Certified	Gordon Times	Collection System Operations Department Manager	10-JUL-23	28-JUL-23	28-JUL-23	Category 2 Spill	Carriage Hills Lift Station	07/07/2023 20:07	07/07/2023 21:05	07/07/2023 17:11	07/07/2023 22:26	23-4378		The spill escaped from a broken force main from our lift station approximately 300 ft South of the intersection of Castro Ranch Rd. and Conestoga St. in Richmond.	37.9629	-122.25767	Force Main			3600	About 300 gallons puddled on the ground in front of and around the lift station and seeped into the soil. We estimated that we recovered around 3300 gallons.	N	NA					3300	Surface Water		The spill escaped from a broken force main from our lift station approximately 300 ft South of the intersection of Castro Ranch Rd. and Conestoga St. in Richmond. The spill pooled in front of the station and seeped into the soil on the North side of the station.	Y	37.96295	-122.25749							07/07/2023 20:59	The water bubbled through the asphalt at a low volume and collected in pooled in front of the station. We estimated about 300 gallons escaped, pooled and seeped into the soil North of the station. We filled one, 2000 gallon vactor tank, and one 1600 gallon vactor tank and returned to the system. 2000 + 1600 = 3600 	The start time was an estimate and assumed. Dennis Wright works for a neighboring agency that traveled back and forth that day. We estimated the start time between those times.	Pipe Structural Problem/Failure - Controls		Force Main		Ductile Iron		37	The spill had minimal impact on the neighborhood or the environment. Most of the spill was recovered and returned to the collection system. A small portion of the spill pooled and seeped into the ground on the North side of the lift station.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Most of the spill was collected by the two vactor trucks we deployed. Soon after arrival the pumps were turned off, but water that was in the pipe drained back and seeped out of the pipe. We deployed 2--5,000 gallon tanker trucks to pump sewage directly out of the wet well. The pipe was excavated, repaired, tested, and returned to service at 0600 the following day, July 8, 2023. The area was then cleaned and disinfected.	Repaired Facilities or Replaced Defect		The pipe has been repaired, evaluated and prioritized for replacement which will prevent repeat events. Schedule of milestones are followed.	1. Repair pipe--Complete  2. Design Replacement--8/30/2023  3. Bid Replacement--9/15/2023  4. Obtain Board approval--10/18/2023  5. Project Construction--11/1--11/15/2023	07/08/2023 06:00	Excavating the pipe revealed that inside of it is pitted and the walls are thin. This caused the pipe to develop a hole which allowed the sewage to seep to the surface.	N												N													
8	8SSO10591	Active	Orange City CS	Orange City	889410	1.1	Certified	Mike Carney	Environmental Program Manager		01-AUG-23	01-AUG-23	Monthly Category 3 Spill	455 S Main St	07/05/2023 13:10	07/05/2023 13:30	07/05/2023 12:55				Wastewater overflowed from City Manhole at the intersection of Main St. and Providence Ave.	33.78138	-117.8672	Manhole	N/A	N/A	112	Wastewater spilled from City manhole in the street at Providence Ave. and Main St. and flowed South along the Eastside gutter to a catch basin at the Northeast corner of La Veta Ave. and Main St.	Y	Catch basin at the Northeast corner of La Veta Ave. and Main St. 	112				112	Drainage Conveyance System that discharges to surface water		Catch basin 17-029	Y	33.78138	-117.8672							07/05/2023 13:45	Spill volume was estimated using the SSCSC pictorial manhole overflow gauge. The flow exiting the pickhole was less than the 5gpm and was intermittently exiting.  The 5gpm rate was then lowered to provide for this lower rate.	The reporting person stated that they believed the spill started at 1:00pm as he noticed wetness around the manhole when returning to work from lunch, but not during his walk to lunch.	Debris-wipes/Non-disposables		Gravity Mainline		Vitrified Clay		98	All wastewater was removed from the conveyance system and surface areas were cleaned.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Vactor truck was used to clean up all wastewater and clear the line.	Adjusted Schedule/Method of Preventive Maintenance		Contacted property manager who will be installing signage in the bathroom to deter flushing wipes.		07/05/2023 15:05	N/A		N/A	07/05/2023 15:05														N/A	Adjusted cleaning schedule 	Adjusted cleaning schedule	N/A	N/A	N/A	N/A	N/A	N/A	
2	2SSO10179	Active	San Jose City CS	San Jose City	889411	1.4	Certified	Ben Nguyen	Senior Engineer		28-JUL-23	28-JUL-23	Monthly Category 3 Spill	3129 Mt Vista Drive San Jose CA 95127	05/04/2023 15:20	05/04/2023 15:45	05/04/2023 15:00				The homeowner's at 3129 Mt Vista Dr were installing a new lateral pipe, notice water in the trench, and called in.  Sewage spilled out of the trench onto the street.  Sewage then discharged from the trench and traveled from the property into the street curb/gutter.   The spill did not reach the MS4 or drainage system. 	37.35158	-121.81358	Lower Lateral (Private)			97	The spill discharged traveled along the property into the street curb/gutter. The sewage traveled along the curb and gutter, and was contained with sandbags and a spill mat.  The spill did not reach a catch basin. 	N						97	Street/Curb and Gutter (2 3)		The spill (sewage) originate from the front lawn and driveway of 3129 Mt Vista Dr (spill appearance point).  The front lawn and driveway spill are identified in 1.d. and 1.e. The spill reached and traveled along the curb and gutter, but was contained with sandbags and a spill mat.  The spill did not reach the MS4 or drainage system.  The location of the containment is identified in 1.f. and 1.g.  	Y	37.35158	-121.81358	37.35098	-121.814169					05/04/2023 16:15	The spill volume was estimated using a measurements of the spill boundary.  The First Responder documented a video and pictures of the spill area.  Dimensions of the spill boundary were estimated during responding activities. These dimensions were used to estimate the spill volume.  All the spill volume was contained, cleaned up, and returned to the collection system.	The methodology used to estimate the spill volume was measurements of the spill recorded by the first responder.  The First Responder took video and pictures of the spill area.  Crew used tape measure and measuring wheel to measure the spill area. These dimensions were used to estimate the spill volume.  The total estimated spill volume and information from the Reporting Party (RP) were used to assume a reasonable start time.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		65	The impact of the spill resulted was isolated to the front lawn and driveway for the private residence at 3129 Mt Vista Dr. There were no observed impacts to the public,  nearby waterways, or wildlife. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		The First Responder placed sandbags and a spill matt along the curb/gutter to contain the spill. The Crew set up equipment to clear the plug and performed cleaning up of the affected area. Next. the Crew onsite washed down and recovered all of the sewage along with induced water from the point of containment.  All of the spill on land was cleaned up and returned to the collection system.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Corrective actions for the spill include the following:  1. Conduct FOG outreach by distributing Grease Flyers to the nearby residents. 2. Revise problem pipe mainline cleaning cycle from 7 years to 4 years. 3. Re-CCTV the problem pipe mainline to assess issues in 6 Months to identify potential blockages or grease buildups. 4. Identify any root intrusion in nearby sanitary pipe segments and add them to the City's Root Control Program.		05/04/2023 17:00	While the Responding Crew cleared the blockage in the plugged sanitary mainline, the Crew documented their findings. A pipe basket was used to collect the debris that was causing the blockage of the mainline. Crew collected what appeared to be a large pieces of grease which was likely the cause of the blockage. After conducting a follow up CCTV of the sanitary mainline, there were no other significant observations or defects in the pipe that would've contributed to the blockage. Therefore, it was determined that grease (FOG) was the primary cause of the blockage and spill.		All investigation efforts for this spill event have concluded.	05/24/2023 17:00														N/A	The system modifications to the O & M program include the following:  1. Revise problem pipe mainline cleaning cycle from 7 years to 4 years. 2. Re-CCTV the problem pipe mainline to assess issues in 6 Months to identify potential blockages or grease buildups. 3. Identify any root intrusion in nearby sanitary pipe segments and add them to the City's Root Control Program.	Revise problem pipe mainline cleaning cycle from 7 years to 4 years.	N/A	CCTV condition assessment of the problem pipe segment and nearby upstream and downstream segments were conducted the following day.  No pipe repairs or replacements were required.	No capital improvements were required based on the CCTV condition assessment.	The immediate system modifications to the O & M program include the following:  1. Revise problem pipe mainline cleaning cycle from 7 years to 4 years. 2. Identify any root intrusion in nearby sanitary pipe segments and add them to the City's Root Control Program.	No modifications to the spill response activities were made	All investigation efforts for this spill event have concluded.	
4	4SSO11365	Active	Unincorporated County Area CSMD South/County Sanitation District CS	Los Angeles Cnty DPW	889414	1.4	Certified	Robert Swartz	Sr. CE		28-JUL-23	28-JUL-23	Monthly Category 3 Spill	19253 Colima Road, Rowland Heights, CA 91748	06/20/2023 10:30	06/20/2023 11:00	06/19/2023 17:00				CSMD map Sheet No. 2305 Manhole No. 462 MMS No. 8290502 Spill originated on Manhole No. 462, see attached photographs.  	33.98755	-117.88309	Manhole	Manhole No. 462		100	Sewage was contained to alley and dried up. See attached photographs.	N						0	Street/Curb and Gutter (2 3)		Sewage was contained to alley and dried up.										06/19/2023 11:38	CWEA SSCSC manhole gauge and visual/eyeball method. 	CWEA SSCSC manhole gauge and visual/eyeball method. 	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		37	Sewage was contained to alley and dried up, which was cleaned.	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow		Hydro jet equipment was used to break down the mainline heavy grease blockage. Washed down the affected area. Notified all required agencies. 	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source		Adjusted preventive maintenance program from 90 to 60 days. 		06/20/2023 13:15	Will inspect sewer using CCTV to determine if further actions are needed. Submitted grease accumulation report to Enviornmental Programs Division for investigation. 		Will inspect sewer using CCTV to determine if further actions are needed. Submitted grease accumulation report to Enviornmental Programs Division for investigation. 	08/20/2023 13:00														Submitted grease accumulation report to Enviornmental Programs Division for investigation. 	Adjusted preventive maintenance program from 90 to 60 days. 	Adjusted preventive maintenance program from 90 to 60 days. 	N/A	N/A	N/A	N/A	N/A	Will inspect sewer using CCTV to determine if further actions are needed. Submitted grease accumulation report to Enviornmental Programs Division for investigation. 	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	889417	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	11-JUL-23	11-JUL-23	11-JUL-23	Category 2 Spill	99 Hegengerger Road, Oakland Ca	07/10/2023 09:17	07/10/2023 09:35	07/10/2023 06:00	07/10/2023 09:17	234448		3 Manholes were overflowing at the sidewalk area, the manhole # 1 was overflowing and leaking into a PG&E high voltage electric vault. We were unable to recover the water due to electrical hazard. PG&E crews will clean up the area of the vault. Manholes #1 and #2 were leaking onto paved sidewalk concrete surface and unpaved planter strip. at these locations the water soaked into the soil. 	37.72971	-122.20079	Manhole	3 Manholes at the sidewalk area		1702	3 Manholes were overflowing at the sidewalk area, the manhole # 1 was overflowing and leaking into a PG&E high voltage electric vault. We were unable to recover the water due to electrical hazard. PG&E crews will clean up the area of the vault. Manholes #1 and #2 were leaking onto paved concrete sidewalk surface and unpaved planter strip. at these locations the water soaked into the soil. 	N						0	Paved Surface; Unpaved Surface		3 Manholes were overflowing at the sidewalk area, the manhole # 1 was overflowing and leaking into a PG&E high voltage electric vault. We were unable to recover the water due to electrical hazard. PG&E crews will clean up the area of the vault. Manholes #1 and #2 were leaking onto paved sidewalk concrete surface and unpaved planter strip. at these locations the water soaked into the soil. 	Y	37.72971	-122.20079							07/10/2023 10:38	Manhole #1: Concrete-L 6' x '3 x D .5 (.04) x 7.48=5gallons Dirt-L 9'x'6 x D .17 x 7.48= 69 gallons Lost in soil- 9' x '6 x .5 x7.48 gallons x1875 = 13 gallons Total for Manhole #1: 5+ 69 + 13 = 87 Gallons PG&E vault: L 6' x W 4' x D 5.5' x 7.48 Gal = 1526 Gallons Manhole #2: Planter strip: L 15' x W 3' x D .25' x 7.48-Gal x .1875 = 16 Gallons Concrete: L 6' x W 6' x D .02' x 7.48-Gal = 5 Gallons Total Manhole # 2: 16 + 5 = 21 Gallons Manhole #3: Concrete-L 24' x W 3' x D .0733 x 7.48-Gal = 39 Gallons Planter strip: L 21' x W 4' / 2 x D .5' x 7.48-Gal x .1875 = 29 Gallons Total Spill Manhole # 3: 39 + 29 = 68 Gallons Total Spill: 1526 + 87 + 21 + 68 = 1702 Gallons	Start time would take approximately 2.5 to 3 hours to reach the amount of water inside the electric vault. The end time was based when the Debris-Wipes blockage was removed from the gravity mainline.	Debris-wipes/Non-disposables	Debris-Wipes	Gravity Mainline		Vitrified Clay		29	3 Manholes were overflowing at the sidewalk area, the manhole # 1 was overflowing and leaking into a PG&E high voltage electric vault. We were unable to recover the water due to electrical hazard. PG&E crews will clean up the area of the vault. Manholes #1 and #2 were leaking onto paved sidewalk concrete surface and unpaved planter strip. at these locations the water soaked into the soil. 	N	Cleaned Up (specify below); Restored Flow	Restored flow.  Crew washed the affected spill area, and recovered the water used to wash the area. 	Restored flow.  Crew washed the affected spill area, and recovered the water used to wash the area. 	Added Sewer to Preventive Maintenance Program		Mainline will be added to Preventative High Frequency 6 Months Maintenance Program.	High Frequency 6 Months Maintenance Program.	07/10/2023 11:30	Hydro flusher crews responding to the spill found heavy debris-wipes blockage. 	Y	CCTV gravity Mainline to find potential causes of the overflow.	07/17/2023 14:06										Y												CCTV gravity Mainline to find potential causes of the overflow.	
4	4SSO11423	Active	Long Beach Water Dept. CS (SSO program)	Long Beach City, Water Dept	889419	1.2	Certified	Jennifer Rojas	Senior Director 	11-JUL-23	11-JUL-23	11-JUL-23	Category 2 Spill	4535 N. Deal Dr.	06/26/2023 07:40	06/26/2023 08:10	06/25/2023 23:00	06/26/2023 12:45	23-4114		 The spill originated from a resident's private 4  clean-out in the rear of the property, 4535 N. Deal Drive. See attached	33.84011	-118.19033	Lateral Clean Out (Private)			1800	Sewage overflowed from a 4  private clean-out, traveled down the street curb and gutter and entered the catch basin and traveled down the conveyance system, and ended up in the flood control channel, where it was contained and fully recovered. See attached map and photographs. 	Y	Concrete stormwater channel. See attached photo	1800	0			1800	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Unpaved Surface		The spill entered the Los Angeles County stormwater channel, which runs through Long Beach and empties into the Los Angeles River at the intersection of W 47th St. and Pacific Ave. The storm channel was dry when the spill occurred, and it was contained and recovered before entering the LA River.	Y	33.84011	-118.19033							06/26/2023 08:45	When we arrived, the clean-out was spilling at a rate of approximately three gallons per minute. According to the resident, Patrick, it had been spilling out since 11:00 PM on Sunday night, June 25th, 2023. In total, this amounts to approximately 1800 gallons of sewage (3 gallons per minute x 600 minutes).	Resident Patrick took note of when the spill started and waited until the following morning to report it to our department. Patrick observed a consistent flow, estimated to be approximately three gallons per minute.	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		79	The spill had a minimal impact on residents and the community. The spill drained through the city's curb and gutter, eventually entering a catch basin and a dry stormwater channel. There were no reportable impacts on humans, property, or the environment.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Long Beach Utilities was dispatched to respond to a sewer spill and cleared the stoppage with a stoppage nozzle. Upon arrival, we sandbagged the area to contain overflow at the street curb, gutter, and catch basin. Due to warm weather, most of the street and gutter spill area dried up. We contacted the city public works department to have the crew check the city catch basin and determine the extent of the spill. However, we did not receive an exact ETA from the public works dispatch. In addition, we called the fire department, and they contacted the health department. We also contacted Ocean Blue to perform a spill cleanup. They cleaned and recovered the full 1800 gallons of sewage that spilled and the customer's backyard, driveway, street, curb, city catch basin, and LA county riverbed where the spill stopped. The 1800 gallons of the spill were fully recovered, and the spill has been cleaned.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		A blockage occurred in the easement situated in a residential backyard. To resolve the issue, schedules have been adjusted to clean and televise this segment of the sewer line sooner than originally planned. The line was thoroughly cleaned and televised during the week of July 6, 2023. A root mass was discovered and removed to prevent future spills.	- On June 25th, 2023 at 11:00 pm, resident Patrick discovered a spill. - On June 26, 2023, at 7:40 AM, resident Patrick notified the Long Beach Utilities Department of the sewer spill. - On June 26th, 2023, at 8:10 am, the operator arrived and discovered a positive sewer spill located in the backyard of 4535 N. Deal Drive. - On June 26, 2023, at 8:45 AM, the operator relieved a sewer blockage located in the sewer easement using hydrojet equipment. - On June 26, 2023, sewer cleanup and containment were performed throughout the day to remove the spill from the residence driveway, street, curb, gutter, and conveyance system, and it was fully captured and recovered. - On June 26, 2023, the operator notified the Long Beach Fire and Health Department at 8:48 AM, and the environmental cleanup service, Ocean Blue, was notified shortly after at 8:55 AM. - On June 26, 2023, the operator notified Cal OES at 12:45 PM. - On June 26, 2023, at 6:27 pm, the contractor fully recovered the spill.	06/26/2023 18:27	A post-CCTV inspection of the mainline was performed, and roots in the city mainline were discovered. Our cleaning crews used hydro-jetting to clear the sewer main and remove the root mass.	N												N													
8	8SSO10543	Active	Beaumont City CS	Beaumont City	889420	1.2	Certified	Jerome Moledor	Wastewater collections supervisor	11-JUL-23	19-JUL-23	19-JUL-23	Category 1 Spill	Oak Valley Pkwy	07/10/2023 09:15	07/10/2023 09:15	07/10/2023 08:05	07/10/2023 11:03	23-4419		Force main air vac vault.	33.95456	-117.06059	Force Main; Other Sewer System Structure	Force main air vac vault.		110	From a sealed force main air vac vault it traveled South apx 5' then turned West and traveled apx 185' in a dry wash. The wash is between the roadway and Union Pacific RR tracks.	N				In a dry wash between the roadway and Union Pacific RR tracks.	110	110	Unpaved Surface	Dry wash	spill from a sewer force main air vac vault.	Y	33.95456	-117.06059	33.95505	-117.0612					07/10/2023 10:05	Visual estimation, spill area calculation, and comparison of sewer manhole overflow chart.	Visual estimation, spill area calculation, and comparison of sewer manhole overflow chart.	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure		Air Relief Valve (ARV)/ Blow-Off Valve (BOV); Force Main; Other (specify below)	Air Vac Vault.	Cast Iron; Other (specify below)	Air Vac	18	From a sealed force main air vac vault it traveled South apx 5' then turned West and traveled apx 185' in a dry wash. The wash is between the roadway and Union Pacific RR tracks. Spill was captured and returned to sewer system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Returned All Spill to Sanitary Sewer System	cleaned up spill area. returned all to collections system. Disinfected spill area with diluted chlorine.	Used in house combo truck to clean up area. built a earth damn to contain spill before combo truck was on site. switched to redundant force main, while repairs are being made on faulty air vac.	Repaired Facilities or Replaced Defect		switched to redundant force main, while repairs are being made on faulty air vac.	Installed new replacement air vac.	07/10/2023 12:15	Once spill was cleaned up it was visual seen that a faulty air vac was the issue. air vac was taken out of service and replaced.	N			None	Wash	Dry wash between the roadway and Union Pacific RR tracks.		None	Other (specify below)	None. area is not used for traffic or walking.	none	0	N	N												
4	4SSO10420	Active	Rancho Palos Verdes City CS	Rancho Palos Verdes City	889436	1.1	Certified	Robert Swartz	Sr. CE		28-JUL-23	28-JUL-23	Monthly Category 3 Spill	1655-0027 (30763 Tarapaca Road, Rancho Palos Verdes)	07/01/2023 09:30	07/01/2023 10:50	07/01/2023 09:00				CSMD Map Sheet No. 1655 Manhole No. 27 MMS No. 8308771  Sewage was coming out of Manhole No. 27	33.73207	-118.32763	Gravity Mainline; Manhole	Manhole No. 27		600	The sewage was redirected to an unpaved surface (open filed). 	N						0	Unpaved Surface		The sewage was redirected to an unpaved surface (open filed). 	Y	33.73196	118.32685							07/01/2023 11:00	CWEA SSCSC Manhole Gauge Visual/Eyeball Method Time of notification	CWEA SSCSC Manhole Gauge Visual/Eyeball Method Time of notification	Debris-General		Gravity Mainline		Vitrified Clay		66	N/A	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow		An area was designated to divert the discharge into an open filed. Hydo jet equipment was utilized to clear the mainline debris blockage successfully. The entire wastewater discharge was contained in the ground and did not reach any waterways. Afterwards, the area was thoroughly washed with fresh water, and the surrounding dirt was vacuumed. All necessary agencies were promptly notified of the situation.   	Other (specify below)	Will inspect sewer using CCTV.	Will inspect sewer using CCTV to determine if further actions are needed. 		07/01/2023 15:00	Will inspect sewer using CCTV to determine if further actions are needed. 		Will inspect sewer using CCTV to determine if further actions are needed. 	09/01/2023 09:00														N/A	N/A	Will inspect sewer using CCTV to determine if further actions are needed. 	N/A	N/A	N/A	N/A	N/A	Will inspect sewer using CCTV to determine if further actions are needed. 	
6A	6SSO11113	Active	So. Tahoe Public Utility Dist. CS	South Tahoe PUD	889484	1.6	Certified	Richard T Jones	Underground sewer supervisor 		21-JUL-23	21-JUL-23	Monthly Category 3 Spill	Easement	07/14/2023 11:50	07/14/2023 12:00	07/14/2023 11:47				A manhole behind 1610 Zapotec was seeping out the lid on to the ground. the homeowner called it in. 	38.8607	-119.99753	Manhole			150	sewage came out of the manhole and on to the ground where it puddled up it did not travel. 	N						150	Unpaved Surface		the spill puddled up around the manhole and did not travel. 										07/14/2023 01:03	eye site	the call out to the time I got on site to put eyes on it. and when we broke the stoppage.	Debris-Rags; Fats, Oil and Grease (FOG)		Gravity Mainline		Concrete		60	puddle outside of manhole	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		broke stoppage with our hydro cleaner. raked up debris around manhole. 	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	install Smart Cover	installed a smart cove to monitor sewer flow rise and fall.		07/14/2023 03:00	We used our hydro Jetter to break the stoppage. once broken raked up debris around the manhole, jetted it a couple more times to make sure all grease deposits were gone. CCTVed this line to get a good look. did not see much in the video. installed a smart cover to monitor flow as well as rise and fall.		Installed a smart cover to monitor flow rise and fall.	07/14/2023 03:00														installed a smart cove to monitor sewer flow rise and fall.	currently on our enhanced cleaning monthly list and we have just installed a smart cover to monitor flow rise and fall.	currently on our enhanced cleaning monthly list and we have just installed a smart cover to monitor flow rise and fall.	 Just installed a smart cover to monitor flow rise and fall.	currently on our enhanced cleaning monthly list and we have just installed a smart cover to monitor flow rise and fall.	not at this time 	Just installed a smart cover to monitor flow rise and fall.	use our hydro Jetter to break the stoppage. once broken raked up debris around the manhole, jetted it a couple more times to make sure all grease deposits were gone. CCTVed this line to get a good look. did not see much in the video. installed a smart cover to monitor flow as well as rise and fall.	Installed a smart cover to monitor flow rise and fall.	
9	9SSO10653	Active	City of Laguna Beach CS	Laguna Beach City	889497	1.3	Amended	Richard A Gonzales	Deputy Director of Public Works	17-JUL-23	19-JUL-23	19-JUL-23	Category 2 Spill	3rd Street 	07/15/2023 11:19	07/15/2023 11:55	07/15/2023 11:11	07/15/2023 17:45	23-4553		Spill initiated on 3rd street 	33.54446	-117.78117	Lateral Clean Out (Private); Manhole	3 separate manholes on 3rd street,2 separate private cleanouts	3 separate manholes on 3rd street,2 separate private cleanouts	4201	Spill initiated on 3rd and continued down Forest Avenue 	Y	Spill entered 2 separate storm drains (1) 3rd (2)Forest Ave	4201	0			4201	Drainage Conveyance System; Street/Curb and Gutter (2 3)		The spill event happened on 3rd Street and sewage ran down Forest Ave.  33.54294 N, 117.78046 W	Y	33.54294	117.78046							07/15/2023 11:58	Estimations were taken by visual accounts, photographs, and video footage. Also, measuring wheel and sewage depth estimates. 	Data relied upon for spill start time was visual estimates done by the fire department staff. The spill end time was estimated by visually seeing the spill stop coming out of a manhole. 	Pump Station Failure - Power		Pump Station - Power		Polyvinyl Chloride (PVC)		50	The impact of the spill was minimal. Streets were closed down while the spill was being cleaned up. 200 gallons were removed from the beach, none reached the waters of the beach. 	N	Cleaned Up (specify below); Other Enforcement Agency Notified	Cleaned up all associated areas of the spill. Notified all necessary entities. 	Response activities included finding the source of the spill as well as calling for assistance to clean up the spill. The spill was stopped 47 minutes after staff arrived at the location. Clean-up consisted of cleaning all the streets and curb/gutter area where the spill occurred. 	Repaired Facilities or Replaced Defect		The plan is to have an electrician go over the Lift Station and find the reason the pumps stopped pumping. Also, why did the pumps stop pumping when the generator was running? 	Ongoing.	07/19/2023 09:19	The investigation is ongoing. 	Y	We have to find a qualified electrical contractor to help us solve the problem of Lift Station failure. 	08/18/2023 09:33										N												We have to find a qualified electrical contractor to help us solve the problem of Lift Station failure. 	
2	2SSO11507	Active	Port of San Francisco CS	Port of San Francisco	889501	1.4	Certified	Richard Berman	Manager of Environmental/Regulatory Affairs	17-JUL-23	28-JUL-23	28-JUL-23	Category 1 Spill	Pier 45 Pump Station for Shed B	07/17/2023 09:00	07/17/2023 09:00	07/17/2023 08:55	07/17/2023 10:50	23-4580		Pump station pump failure at Pier 45 Shed B Latitude: 37.809167 Longitude: 122.416389	37.809167	122.416389	Pump Station			300	Pump station failure with overflow into nearby trench storm drain that drains directly to SF Bay.	Y	Trench storm drain adjacent to Shed B on Pier 45	0	0	Trench storm drain received sewer overflow from pump station discharge due to mechanical issue. Trench storm drain drains directly to the Bay.	300	0	Surface Water		Pump station at Pier 45 overflowed into a storm drain that discharged into the SF Bay.    	Y	37.809863	-122.417334							07/17/2023 11:00	SCADA	SCADA data on duration of failure and pump rates.	Collection System Maintenance Failure (specify below)		Pump Station - Mechanical		Other (specify below)	Failure was the pump, not a pipe segment.  The pump station was built about 15 years ago.	15	No discernable impact.  	N	Other (specify below)	Clean up surface material, but little volume was returned to the system.	Clean pavement, spill was not recoverable.	Repaired Facilities or Replaced Defect		Pump station is already on a preventative maintenance program and equipped with SCADA technology.	Interim and permanent pump replacements achieved same day, 7/17/2023.	07/17/2023 14:37	Plumbers assessed station and found failed pump	N			San Francisco Bay	Estuary			None observed.	Other (specify below)	Did not affect public access.	SFDPH	0	N	N												
9	9SSO10653	Active	City of Laguna Beach CS	Laguna Beach City	889505	1.16	Certified	Richard A Gonzales	Deputy Director of Public Works		18-AUG-23	18-AUG-23	Monthly Category 3 Spill	278 Cypress	07/11/2023 16:10	07/11/2023 16:19	07/11/2023 16:00				Clean out @ 278 Cypress Drive leaving property entering storm drain approximately 8' away	33.54474	-117.78712	Lateral Clean Out (Private); Upper Lateral (Private)	N/A	0	561	Overflow on the property leaving entering the storm drain approximately 8' away	Y	Storm drain intercepted by diversion to capture all of the overflow 	561				561	Building or Structure; Drainage Conveyance System		The spill event occurred inside the bottom floor of the residence. The bottom floor consisted of two bedrooms, two bathrooms, and an entryway.  33.54474N 117.78712W	Y	33.54469	-117.78707							07/11/2023 04:50	The volume was calculated using a measuring wheel and estimation of volume run time multiplied by the circumference of the cleanout.  	Estimation of spill time starts with the neighbor calling the renter at 2:48 pm, stating it sounded like a water fountain was running in the home. The spill in the home ended at 4 pm when the renter opened the clean-out and relieved the spill inside the house. City staff removed the sewer line blockage at 4:50 pm, relieving the spill from the clean-out.  The estimated run time of the spill is from 2:48 pm to 4:50 pm. 	Debris-General		Gravity Mainline		Fiberglass; Polyvinyl Chloride (PVC)		40	The spill flooded the bottom level of the home, including bedrooms and bathrooms. The spill also came out of the clean-out flowing into a storm drain. The storm drain diversion units were diverting storm water into the sewer system. 	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Cleaned up the exterior and gutter area in front of the home. Mitigated the spill's effects by relieving the spill blockage in a timely manner. 	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance		Planned corrective action steps include jetting the sewer line in the area every three months. Previous line maintenance occurred annually. 		07/11/2023 12:00	The investigation consisted of CCTV cameras used to inspect the interior of the city's sewer system. 		N/A	07/28/2023 12:00														N/A	Increase sewer line cleaning from once a year to every quarter. 	The method of preventative maintenance is to jet the lines more frequently and CCTV camera the line twice a year. 	N/A	N/A	N/A	N/A	N/A	N/A	
4	4SSO11365	Active	Unincorporated County Area CSMD South/County Sanitation District CS	Los Angeles Cnty DPW	889511	1.3	Certified	Robert Swartz	Sr. CE	18-JUL-23	28-JUL-23	28-JUL-23	Category 1 Spill	2124-0060 (1579 Belgreen Drive, Whittier - Unincorporated County Area)	06/03/2023 16:02	06/03/2023 17:15	06/03/2023 15:40				CSMD Map Sheet No. 2124 Overflowing Manhole No. 60 MMS No. 8275986	34.03588	118.01958	Manhole			200	Sewage discharged from Manhole No. 60 into storm drain in front of 1583 Belgreen Drive, which leads to San Jose Creek Diversion Channel that connects to San Gabriel River - Santa Fe Dam to Thienes Ave.	Y	Sewage discharged from Manhole No. 60 into storm drain in front of 1583 Belgreen Drive, which leads to San Jose Creek Diversion Channel that connects to San Gabriel River - Santa Fe Dam to Thienes Ave.	0	0	Sewage discharged from Manhole No. 60 into storm drain in front of 1583 Belgreen Drive, which leads to San Jose Creek Diversion Channel that connects to San Gabriel River - Santa Fe Dam to Thienes Ave.	100	100	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Sewage discharged from Manhole No. 60 into storm drain in front of 1583 Belgreen Drive, which leads to San Jose Creek Diversion Channel that connects to San Gabriel River - Santa Fe Dam to Thienes Ave.	N									06/03/2023 17:30	Visual / SSCSC Manhole Overflow Gauge	Visual / SSCSC Manhole Overflow Gauge	Other (specify below)	Unknown object	Gravity Mainline		Vitrified Clay		53	Sewage discharged from Manhole No. 60 into storm drain in front of 1583 Belgreen Drive, which leads to San Jose Creek Diversion Channel that connects to San Gabriel River - Santa Fe Dam to Thienes Ave.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow		Upon arrival, Manhole No. 60 was overflowing. Set up containment with combo truck at storm drain. Rodder equipment was used to break down the mainline blockage. Cleaned-up curb and gutter. Notified all required agencies. 	Other (specify below)	No recommendation due to unknown object in the mainline that caused the stoppage.	N/A	N/A	06/03/2023 18:40	N/A	N			San Jose Creek	Other (specify below); River	San Jose Creek Diversion Channel that connects to San Gabriel River - Santa Fe Dam to Thienes Ave		N/A	Other (specify below)	No impact.	N/A	0	N	N												
9	9SSO10662	Active	County of San Diego CS	San Diego County Dept of Public Works	889518	1.3	Certified	Peejay Tubongbanua	LUEG Program Manager	18-JUL-23	28-JUL-23	28-JUL-23	Category 1 Spill	1990 Arnold Way	07/16/2023 18:32	07/16/2023 19:41	07/16/2023 18:09	07/17/2023 14:52	23-4594		Gravity sewer manhole located in the street at 1990 Arnold Way, Alpine CA 91901	32.83619	-116.77243	Manhole			980	Spill appeared at a manhole located on a paved surface and traveled to a concrete storm drain inlet located on the south side of the street. The concrete storm drain culvert travels underground approximately 770' where it crosses to the north side of Arnold Way to the outlet located at an unlined dirt channel. Additional flow from the same manhole traveled north to the curb line on Arnold Way and followed the curb line west approximately 560' to an inlet that allows flows to directly enter the same unlined dirt channel.  	Y	Drainage conveyance system is an unlined dirt channel on the north side of Arnold Way. The south side of Arnold Way has a concrete storm drain inlet and culvert that flows to the unlined dirt channel. (10b), (13) includes sewage captured along with water utilized during cleanup operations.	1182	0	The dirt channel is labeled as a blue line stream (Alpine Creek). The channel was dry at the time of the spill.   	980	1182	Surface Water		Alpine Creek, dry dirt channel just North of Arnold Way	Y	32.83622	-116.77243	32.83609	-116.77256	32.8357	-116.77415	32.83556	-116.77519	07/16/2023 19:47	Duration of spill X estimated flow rate. Flow rate was determined by using the SSCSC Manhole Overflow Gauge	Spill start time estimated by initial call time. Spill end time was determined by operator arrival and observed containment time. 	Root Intrusion	Root mass from private lateral dislodged and became stuck in gravity main causing blockage and spill.	Gravity Mainline		Concrete		54	Minimal impact to community and surrounding environment. 	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Vacuumed portion of spill and washed down spill area, collected available spill and wash down water, returning all water collected to sanitary sewer system. Disinfected and sanitized spill area. Perform CCTV inspection of affected gravity main and adjacent gravity mains to determine if additional corrective action was needed. Notified OES, SDRWQCB, and County of San Diego DEHQ. 	Inspected Sewer Using CCTV to Determine Cause		Determined root mass was dislodged from a private lateral. Gravity sewer mains are in good condition and current cleaning schedule is adequate to prevent reoccurrence. 	All corrective action has been completed.	07/18/2023 16:30	Blockage was determined to be roots by trapping debris in downstream manhole during cleaning process. CCTV crews dispatched on first scheduled workday after spill occurrence. Crews found no evidence of roots in the gravity main where the blockage occurred or adjacent mains. 	N			Alpine Creek	Stream/Creek			No aquatic life observed due to this being a dry stream bed	Other (specify below)	Alpine Creek does not have public access.	County of San Diego DEHQ	0	N	N												
6B	6SSO11143	Active	Eastern Sierra CSD CS	Eastern Sierra CSD	889520	1.2	Work In Progress			18-JUL-23			Category 2 Spill	Glennwood MHP	07/11/2023 09:07	07/11/2023 09:30	07/11/2023 09:00	07/12/2023 09:30	23-4478		Notified by customer of water coming up through manhole in Backyard. Arrived onsite at 9:30am and blockage was cleared at 10:10am. Overflow was contained in customers backyard.	37.381601	118.418454	Gravity Mainline; Manhole			3500	Spill was confined to a 12x18 foot area in customers backyard.  See Attachment 	N						35	Unpaved Surface		Spill was confined to a 12x18 foot area in the backyard.	Y	37.381601	118.418454							07/11/2023 10:10	Manhole overflow chart was used to determine the volume was 55gpm for 70 minutes. it is estimated that only 35 gallons was recovered, the rest soaked into the soil in the backyard.	Customer noticed water coming up out of the manhole at 9:00am and blockage was cleared at 10:10am.	Fats, Oil and Grease (FOG); Inappropriate Discharge to Collection System		Gravity Mainline; Manhole		Concrete		40	Spill was confined to a 12x18 foot area of the customers backyard.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow		We could get our Vactor into the backyard so Bishop Waste was called and they sent out a pumper truck, by the time the pumper truck arrived most of the spill had soaked into the soil. Spill area has been treated twice with an antimicrobial disinfectant and will be treated once a wee for the next three weeks.	Adjusted Schedule/Method of Preventive Maintenance		This line is on our PM schedule for cleaning every four months, we are now going to clean it every two months. pamphlets on what not to flush will be handed out to Mobile Home Park residents again.	PM schedule has already been changed to every two months.	07/11/2023 10:10	Grease build up was the cause. this line has always had a grease issue that is why we have been cleaning it every four months.	N												N													
5S	5SSO10893	Active	City Of Folsom CS	Folsom City - Environmental & Water Resources Dept	889521	1.3	Certified	Marcus Yasutake	Environmental & Water Resources Director		08-AUG-23	08-AUG-23	Monthly Category 3 Spill	Old Ranch Way	07/14/2023 20:23	07/14/2023 20:57	07/14/2023 19:30				On-call staff received a call from P.D. regarding a spilling manhole. Staff arrived to find manhole SS-B21-1-54132 spilling. The cause of the spill was construction debris and was estimated to be 50 gallons. 25 gallons were recovered, and 25 gallons were lost due to evaporation and absorption.	38.63595	-121.11131	Manhole	Manhole SS-B21-1-54138		50	The spill reached a storm drain D.I. and was recovered from the catch basin.	Y	standard storm drain system	25				25	Drainage Conveyance System; Street/Curb and Gutter (2 3)		On-call staff received a call from P.D. regarding a spilling manhole. Staff arrived to find manhole SS-B21-1-54138 spilling. Staff positioned the Vac-truck at the downstream manhole SS-B21-1-54132 and using the main flushing line cleared the blockage to return flow. Additional staff members were called in to assist with the spill. The cause of the spill was large amounts of construction debris in the form of rock. The vacuum section of the truck was used to remove some of the rock and the section of main was flushed several more times. The Vac-truck was then positioned to clean the spill area. Using high pressure water and spray disinfectant the spill area was washed into the vacuum section of the truck. During a visual inspection it was determined the spill entered the storm drain system but was confined the the catch basin. The truck was the repositioned over the D.I. and using the same method the debris was removed and the area cleaned. 		38.63595	-121.11131							07/14/2023 20:00	Based on the length, depth, and width of the spill area.	visual estimate along with experience.	Debris from Construction		Gravity Mainline		Polyvinyl Chloride (PVC)		2	Minimal impact due to the amount of recovered.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		On-call staff received a call from P.D. regarding a spilling manhole. Staff arrived to find manhole SS-B21-1-54138 spilling. Staff positioned the Vac-truck at the downstream manhole SS-B21-1-54132 and using the main flushing line cleared the blockage to return flow. Additional staff members were called in to assist with the spill. The cause of the spill was large amounts of construction debris in the form of rock. The vacuum section of the truck was used to remove some of the rock and the section of main was flushed several more times. The Vac-truck was then positioned to clean the spill area. Using high pressure water and spray disinfectant the spill area was washed into the vacuum section of the truck. During a visual inspection it was determined the spill entered the storm drain system but was confined the the catch basin. The truck was the repositioned over the D.I. and using the same method the debris was removed and the area cleaned. 	Other (specify below)	Contractor will be responsible for removing remaining debris.	Flushed the mainline segment multiple times and removed debris with Vac-truck to restore flow.		07/14/2023 21:33	n/a		n/a	07/14/2023 21:33														n/a	better enforcement and inspections for contractors.	n/a	n/a	n/a	n/a	n/a	n/a	n/a	
2	2SSO10202	Active	Tamalpais CSD CS	Tamalpais Community San Dist	889527	1.2	Certified	Mike Quecke	Facilities Superintendent		19-JUL-23	19-JUL-23	Monthly Category 3 Spill	501 Sunnybrook Lane	07/18/2023 09:12	07/18/2023 09:22	07/18/2023 09:12				Spill appeared at 4  lateral cleanout in driveway of residence.	37.885353	122.53846	Lateral Clean Out (Private)			102	photo shows area affected by spill. this is confined to paved surface and yard/land area	N						10	Paved Surface; Unpaved Surface		sewer stoppage occurred at MH2.007 and  spill appearance point was confined to area surrounding driveway and yard/land approximately 250 feet away. Coordinates given below	Y	37.88534	-122.53847							07/18/2023 09:46	spill volume was based on visual gauge based on SSCSC manhole overflow gauge. we estimate that for the duration of SSO at 34 minutes, 3GPM was spilled based on flow at appearance point, total area of spill, and that there was still flow within collection system at downstream location to MH2.007 where the blockage occurred.	spill start time was based on property owner visibly seeing the overflow in driveway and calling the district. 	Debris from Lateral; Other (specify below)	removed root slug that appears to be from lateral based on diameter	Manhole; Other (specify below)	MH2.007	Other (specify below)	abestos cement pipe	64	concrete area of driveway and yard/land were affected with spill 	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow		spill that contained small amounts of paper and waste was collected and removed from driveway and yard/land area. area was then swept to remove small debris, then washed down with water. any contaminated wood bark was also removed. 	Other (specify below)	SmartCover installation for monitoring purposes and prevention of SSO 	Cleaned sewer segment to re-establish flow in collection system. along with our scheduled maintenance program, Capital Improvement Projects scheduled for collection system, TCSD has an ordinance in place that requires home sellers/buyers to repair or replace sewer lateral in the event of home sale, home improvement of $40'000 or more, accessory dwelling unit is added, reported PSLD, earth movement, etc. as an ongoing effort to remove infiltration of roots and outside water source from laterals and sewer collection system.		07/18/2023 12:45	investigation determined that roots were clogged at outlet of MH2.007. This backup/partial backup was due to root slug from an upstream lateral had blocked outlet of manhole. This surcharged into a segment that branches into this line. the elevation change upstream of branch segment resulted in visual appearance at a cleanout. after SSO was cleared TCSD determined that a SmartCover could assist in prevention by monitoring this area.		We are unable to determine which lateral caused this spill. 	07/19/2023 12:00														none at this point	the segment where failure occurred was previously cleaned on 5/30/23 with future intentions of cleaning or CCTV at a	no adjustments were made as the segment that where stoppage occurred was previously cleaned on 5/30/2023 and stoppage has been determined to have been caused by roots from a lateral 	none determined at this time	assets had not been deemed defective 	not planned for this section at this point 	Tamalpais Community Services District has planned to purchase 1 or 2 more SmartCovers to be placed in this vicinity. Coincidentally we are meeting with a representative from this company on July 19th to learn more about our functionality of existing units and determine if more will be needed. this occurrence has already made that determination to acquire more unit(s)	spill response activities included cleanup and restoration of area to its original condition.	We are unable to determine which lateral caused this spill. 	
6A	6SSO11113	Active	So. Tahoe Public Utility Dist. CS	South Tahoe PUD	889528	1.2	Certified	Richard T Jones	Underground sewer supervisor 		21-JUL-23	21-JUL-23	Monthly Category 3 Spill	Luther Pass Pump Station	07/17/2023 07:00	07/17/2023 07:20	07/17/2023 07:00				Coming from under the door to the tank 	38.80278	-120.01453	Pump Station			500	An F fluent valve was not closed completely, and F fluent water was leaking passed and slowly filled the vault it was in and then came out the man door and on to the pavement and down the driveway.	N						490	Paved Surface; Unpaved Surface		An F fluent valve was not closed completely, and F fluent water was leaking passed and slowly filled the vault it was in and then came out the man door and on to the pavement and down the driveway.										07/17/2023 08:00	eye site with estimated calculation  	The time the employee arrived on site and called it in, with the calculation on how long it had been going until the time we diverted the F fluent water to a different direction to stop the leak.	Other (specify below)	faulty valve 	Pump Station - Controls	Faulty valve 	Other (specify below)	Tank valve not sealed. 	31	out from underneath the man door on to the pavement down the driveway. to a ditch.	N	Cleaned Up (specify below); Property Owner Notified; Returned Portion of Spill to Sanitary Sewer System		We found the leak immediately rerouted the F fluent water to stop the leak. We used our hydro vac to remove all F fluent water from the ground by washing it down with our hydro and sucking it up with the Vactor truck. 	Repaired Facilities or Replaced Defect	replace the faulty valve.	replace the faulty valve.		07/17/2023 03:00	Faulty valve will be replaced soon. under construction currently.		Lab testing, replace valve, welded plate on current valve until valve is replace soon. currently under construction.	07/20/2023 12:00														signs were posted.	replace the faulty valve.	replace the faulty valve.	replace the faulty valve.	replace the faulty valve.	replace the faulty valve.	reroute flow. faulty valve is currently under construction to be replaced.	Rerouted F fluent stopped leak washed down area sucked up wash down with Vactor truck. posted signs. welded a plate on the faulty valve to prevent leaking again until valve is replaced.	Lab testing, replace valve, welded plate on current valve until valve is replace soon. currently under construction.	
4	4SSO10362	Active	Alhambra City CS	Alhambra City	888699	2.3	Amended	David Dolphin	Deputy Director of Utilities	07-JUN-23	18-JUL-23	18-JUL-23	Category 1 Spill	1010 E. BEACON	06/06/2023 08:21	06/06/2023 08:30	06/06/2023 00:00	06/03/2023 11:00	23-3693		OVERFLOW AT MANHOLE. OVERFLOW NEAR END OF VERY NARROW STREET WITH VERY LIMITED PEDESTRIAN TRAFFIC. NO PRIVATE PROPERTY WAS DAMAGED. CLEAR BLOCKAGE AND DISINFECT ALL AFFECTED AREA AND PROPERLY DISPOSE OF ALL WASH WATER.	34.0959237	-118.113189	Manhole			24960	OVERFLOW AT MANHOLE. OVERFLOW HAPPEN NEAR THE END OF A VERY NARROW STREET. NO PEDESTRIAN TRAFFIC IN AREA THAT WAS AFFECTED. CLEANED AND DISINFECTED PROPERLY.	Y	STAINED GROUND BELOW OUTFALL AND VERY SMALL AMOUNT OF WATER COMING OUT. CONTAINED ABOUT 2 MIN FROM ARRIVAL.	250	24710	NO PHOTOGRAPHS TAKEN, UNABLE TO ACCESS CHANNEL. MADE PROPER NOTIFICATIONS.	24710	250	Drainage Conveyance System; Paved Surface		The spill reached Alhambra Wash which discharges to the Rio Hondo Spreading Grounds	Y	34.08606	-118.10899							06/06/2023 09:20	SCADA records was used to determine sewer flow at the location.  Also, eyeball estimation was used to confirm the flow rate. 	Alhambra resident was interviewed and verified the start time.  The manhole was located in an isolated area and resident recalled when it first started.	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Cast Iron		80	The spill reached a City owned storm drain which discharged to Alhambra Wash (concrete channel), which does not have public access.  The spill flowed to the Rio Hondo which is a tributary to LA River; however it did not reach the LA River because flow from the Rio Hondo is collected at the Spreading Grounds for groundwater recharge.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	The affected area was disinfected and the wash water was collected and discharged to the Sanitary Sewer.	Once the sewer crew was notified of the SSO, upon arrival the active flow was diked using dirt.  The storm drains was protected with socks and covers. Surrounding area was cleaned.	Adjusted Schedule/Method of Preventive Maintenance; Plan Rehabilitation or Replacement of Sewer		The main line was CCTV'd by our contractor, Propipe, and was found to have buildup.  The line is scheduled for high pressure cleaning.  A Smart Cover was installed at the manhole to immediately notify staff if the flow level is rising.  The line is scheduled to be cleaned every month.	SMART COVER installed.    Line scheduled for cleaning.   Routine Maintenance Changed to Monthly.	06/06/2023 11:27	Roots, grease, excessive wipes and pipe shrinkage due to buildup was discovered by the contractor when a push camera was used to video the line. Staff observed grease and roots when cleaning the line.	N			Rio Hondo/LA River	Other (specify below)	Flow discharged to Alhambra Wash (concrete channel) which does not have public access.   Flow from Alhambra Wash discharges to the Rio Hondo Spreading Grounds.		Impacts on aquatic life was not observed because access is prohibited. 	Other (specify below)	The Alhambra Wash and Rio Hondo Spreading Grounds do not have public access.	LA County Flood Control District	0	Y	N												
4	4SSO10362	Active	Alhambra City CS	Alhambra City	888699	3.1	Certified	David Dolphin	Deputy Director of Utilities	07-JUN-23	18-JUL-23	18-JUL-23	Category 1 Spill	1010 E. BEACON	06/06/2023 08:21	06/06/2023 08:30	06/03/2023 11:00	06/06/2023 10:02	23-3693		OVERFLOW AT MANHOLE. OVERFLOW NEAR END OF VERY NARROW STREET WITH VERY LIMITED PEDESTRIAN TRAFFIC. NO PRIVATE PROPERTY WAS DAMAGED. CLEAR BLOCKAGE AND DISINFECT ALL AFFECTED AREA AND PROPERLY DISPOSE OF ALL WASH WATER.	34.0959237	-118.113189	Manhole			24960	OVERFLOW AT MANHOLE. OVERFLOW HAPPEN NEAR THE END OF A VERY NARROW STREET. NO PEDESTRIAN TRAFFIC IN AREA THAT WAS AFFECTED. CLEANED AND DISINFECTED PROPERLY.	Y	STAINED GROUND BELOW OUTFALL AND VERY SMALL AMOUNT OF WATER COMING OUT. CONTAINED ABOUT 2 MIN FROM ARRIVAL.	250	24710	NO PHOTOGRAPHS TAKEN, UNABLE TO ACCESS CHANNEL. MADE PROPER NOTIFICATIONS.	24710	250	Drainage Conveyance System; Paved Surface		The spill reached Alhambra Wash which discharges to the Rio Hondo Spreading Grounds	Y	34.08606	-118.10899							06/06/2023 09:20	SCADA records was used to determine sewer flow at the location.  Also, eyeball estimation was used to confirm the flow rate. 	Alhambra resident was interviewed and verified the start time.  The manhole was located in an isolated area and resident recalled when it first started.	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Cast Iron		80	The spill reached a City owned storm drain which discharged to Alhambra Wash (concrete channel), which does not have public access.  The spill flowed to the Rio Hondo which is a tributary to LA River; however it did not reach the LA River because flow from the Rio Hondo is collected at the Spreading Grounds for groundwater recharge.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	The affected area was disinfected and the wash water was collected and discharged to the Sanitary Sewer.	Once the sewer crew was notified of the SSO, upon arrival the active flow was diked using dirt.  The storm drains was protected with socks and covers. Surrounding area was cleaned.	Adjusted Schedule/Method of Preventive Maintenance; Plan Rehabilitation or Replacement of Sewer		The main line was CCTV'd by our contractor, Propipe, and was found to have buildup.  The line is scheduled for high pressure cleaning.  A Smart Cover was installed at the manhole to immediately notify staff if the flow level is rising.  The line is scheduled to be cleaned every month.	SMART COVER installed.    Line scheduled for cleaning.   Routine Maintenance Changed to Monthly.	06/06/2023 11:27	Roots, grease, excessive wipes and pipe shrinkage due to buildup was discovered by the contractor when a push camera was used to video the line. Staff observed grease and roots when cleaning the line.	N			Rio Hondo/LA River	Other (specify below)	Flow discharged to Alhambra Wash (concrete channel) which does not have public access.   Flow from Alhambra Wash discharges to the Rio Hondo Spreading Grounds.		Impacts on aquatic life was not observed because access is prohibited. 	Other (specify below)	The Alhambra Wash and Rio Hondo Spreading Grounds do not have public access.	LA County Flood Control District	0	Y	N												
4	4SSO10429	Active	Santa Clarita City CS	City of Santa Clarita 	889534	1.3	Certified	Robert Swartz	Sr. CE	19-JUL-23	28-JUL-23	28-JUL-23	Category 2 Spill	1374-0035 (20241 Keaton Street, Santa Clarita)	06/06/2023 17:56	06/06/2023 18:54	06/06/2023 17:37	06/06/2023 19:53	23-3717		CSMD Map Sheet No. 1374 Overflowing Manhole No. 35 MMS No. 8280067 	34.43412	118.48951	Manhole			9400	Sewage discharged from Manhole No. 35 into storm water outlet in right of way.	Y	Private Drain 0673 into unpaved surface	200	9200			200	Unpaved Surface		Sewage discharged from Manhole No. 35 into storm drain (Private Drain 0673), which leads to unpaved surface. 	N									06/06/2023 19:11	CWEA SSCSC Manhole Overflow Gauge Visual / Eyeball Method Time of notification	CWEA SSCSC Manhole Overflow Gauge Visual / Eyeball Method Time of notification	Debris-Rags		Gravity Mainline		Vitrified Clay		57	N/A	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow		Upon arrival, Manhole No. 35 was overflowing, and sewage was going into storm water outlet. Hydro jet equipment was used to break down the mainline debris-rags blockage. Cleaned-up spill affected area. Notified all required agencies. 	Added Sewer to Preventive Maintenance Program; Other (specify below)	Will also inspect sewer using CCTV to determine if further actions are needed. 	Added sewer to 90-day Hydro periodic and will also inspect sewer using CCTV to determine if further actions are needed. 	90-day	06/06/2023 23:30	debris (metal rod) accumulated rags	N												N													
2	2SSO10095	Active	Benicia City CS	Benicia City	889535	1.3	Certified	John Gant Jr	Field Utilities and Streets Supervisor	19-JUL-23	01-MAY-24	01-MAY-24	Category 2 Spill	698 East I St	07/17/2023 14:50	07/17/2023 15:00	07/13/2023 12:00	07/19/2023 08:26	23-4640		From cleanout behind the property listed onto hillside	38.04568	-122.14547	Gravity Mainline			3529	Onto hillside behind property and down to adjoining property below. 	Y	Drainage inlet in the back of property at 675 East H St that conveys to DI in front of the property	2000	0			3529	Drainage Conveyance System; Paved Surface; Unpaved Surface		Spill originated from cleanout behind the address listed.	Y	38.04558	-122.14554	38.04525	-122.14562					08/17/2023 15:00	Used a calculation of static volume - length x width x depth x 7.48 Also used average household water use and number of houses on the line which is 5.	Start time was based on notification from one of the residents that was impacted by the spill.	Root Intrusion		Gravity Mainline		Vitrified Clay		50	Spill overflowed onto surrounding unpaved area, onto a paved area down below, and then into a private drain inlet that leads to a public drain.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Cleaned unpaved area impacted by spill. Then washed down unpaved portion and captured with vacuum truck and returned to sanitary sewer system.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		CCTV'd line to look for cause/defects, and added line to routine maintenance schedule.	NA	08/17/2023 18:00	Root infiltration causing blockage.	N												N													
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District	889536	1.2	Certified	David Leamer	Assistant Superintendent		27-JUL-23	27-JUL-23	Monthly Category 3 Spill	328188	06/05/2023 13:10	06/05/2023 13:30	06/05/2023 13:30				See Attachment, Spill Map and Photos	38.67556	-121.28773	Lateral Clean Out (Public)	N/A		300	See Attachment, Spill Map and Photos	Y	See Attachment, Spill Map and Photos	291				295	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		See Attachment, Spill Map and Photos	Y	38.67517	-121.28806	38.67463	-121.28899					06/05/2023 13:30	See Attachment, Spill Volume Estimation.	See Attachment, Spill Volume Estimation.	Root Intrusion		Gravity Mainline		Vitrified Clay		57	No observed impact of spill	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		SacSewer M&O crews used a hydro vacuum truck to rinse, and vacuum affected above ground surfaces and storm drain in contact with sewage. SacSewer M&O crews returned all recovered spill to the sewer system. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected mainline with CCTV on June 09,2023. Based on findings, SacSewer increased preventative cleaning frequency to 24 months from 48 months.		06/05/2023 16:00	SacSewer checked up stream manhole and found evidence of the manhole being full but head pressure cleared stoppage. Checked down stream and found large root ball in the bowl at top of the inside drop. Spill reached storm drain inlet. Called Spill responder Catherine Armstrong to test storm drain system. Called Hydro Vac to do a mainline follow up and clean for Spill. Created M/L TV for Spill.		N/A	06/09/2023 14:42														N/A	SacSewer increased preventive cleaning frequency from 48 months to 24 months.	SacSewer increased preventive cleaning frequency from 48 months to 24 months..	N/A	SacSewer inspected mainline with CCTV on June 9, 2023.	N/A	SacSewer increased preventive maintenance frequency on June 12, 2023	N/A	N/A	
9	9SSO10653	Active	City of Laguna Beach CS	Laguna Beach City	889497	2.1	Certified	Richard A Gonzales	Deputy Director of Public Works	17-JUL-23	07-AUG-23	07-AUG-23	Category 2 Spill	3rd Street 	07/15/2023 11:19	07/15/2023 11:55	07/15/2023 11:11	07/15/2023 17:45	23-4553		Spill initiated on 3rd street 	33.54446	-117.78117	Lateral Clean Out (Private); Manhole	3 separate manholes on 3rd street,2 separate private cleanouts	3 separate manholes on 3rd street,2 separate private cleanouts	4201	Spill initiated on 3rd and continued down Forest Avenue 	Y	Spill entered 2 separate storm drains (1) 3rd (2)Forest Ave	4201	0			4201	Drainage Conveyance System; Street/Curb and Gutter (2 3)		The spill event happened on 3rd Street and sewage ran down Forest Ave.  33.54294 N, 117.78046 W	Y	33.54294	117.78046							07/15/2023 11:58	Estimations were taken by visual accounts, photographs, and video footage. Also, measuring wheel and sewage depth estimates. 	Data relied upon for spill start time was visual estimates done by the fire department staff. The spill end time was estimated by visually seeing the spill stop coming out of a manhole. 	Pump Station Failure - Power		Pump Station - Power		Polyvinyl Chloride (PVC)		50	The impact of the spill was minimal. Streets were closed down while the spill was being cleaned up. 75 gallons were removed from the beach, and none reached the beach's waters. 	N	Cleaned Up (specify below); Other Enforcement Agency Notified	Cleaned up all associated areas of the spill. Notified all necessary entities. 	Response activities included finding the source of the spill as well as calling for assistance to clean up the spill. The spill was stopped 47 minutes after staff arrived at the location. Clean-up consisted of cleaning all the streets and curb/gutter area where the spill occurred. 	Repaired Facilities or Replaced Defect		The plan is to have an electrician go over the Lift Station and find the reason the pumps stopped pumping. Also, why did the pumps stop pumping when the generator was running? 	Ongoing.	07/19/2023 09:19	The investigation is ongoing. 	Y	We have to find a qualified electrical contractor to help us solve the problem of Lift Station failure. 	08/18/2023 09:33										N												We have to find a qualified electrical contractor to help us solve the problem of Lift Station failure. 	
2	2SSO10216	Active	West County WW District CS	West County Wastewater District	889537	1.3	Certified	Gordon Times	Collection System Operations Department Manager	19-JUL-23	03-AUG-23	03-AUG-23	Category 1 Spill	568 El Cerro Dr El Sobrante Ca	07/15/2023 19:51	07/15/2023 20:40	07/15/2023 17:51	07/15/2023 23:13	23-4559		Spill originated at street sewer manhole and private property line cleanout	37.97633	-122.30254	Lateral Clean Out (Private); Manhole			950	950 gallons of sewage exited system from street manhole and private property line cleanout reaching storm drain 25 feet from manhole and 10 feet from private cleanout.	Y	Curbside Storm drain inlet 25 feet from sewer manhole	950	950	Sewer manhole in middle of street , private cleanout at property line behind sidewalk	0	0	Drainage Conveyance System that discharges to surface water		The spill entered the storm drain and pooled behind 568 El Cerro. Water then exited the pooled area and a minimal amount entered the storm drain	Y	37.97633	-122.30254	37.583454	-122.183454	37.583438	-122.18759			07/15/2023 21:56	Used the San Diego MH gauge method at 5gpm. MH spilled for 133 minutes equaling 830 gallons. CO spilled at 120 Minutes equaling 120 gallons totaling 950 gallons.	Resident had slow drains and noticed MH in front of property starting to overflow while checking his cleanout. End time occurred when crew members broke the stoppage.	Debris-Rags; Pipe Structural Problem/Failure - Controls		Gravity Mainline		Vitrified Clay		59	The impact of the spill was minimal as street, storm conveyance system and storm drain were thoroughly cleaned. The spill also had minimal impact on the neighborhood.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		After spill was contained and the stoppage broken, crews traced the storm drain. The storm drain and conveyance system were flushed and all water from the spill and from flushing were captured and returned to the collection system.	Repaired Facilities or Replaced Defect		The defective area of the pipe was repaired on July 19 which should eliminate a repeat event.	Complete	07/19/2023 08:05	CCTV inspection revealed a major defect in the pipe. The spill was caused by flushable wipes that hung up on the defective area of the pipe.	N			NA	Other (specify below)	NA		NA	Other (specify below)	NA	NA	0	N	N												
3	3SSO10334	Active	Seaside Co Sd CS	Seaside CSD	889551	1.2	Certified	Nisha Patel	District Engineer		21-JUL-23	21-JUL-23	Monthly Category 3 Spill	1181 Baker Street	06/15/2023 09:56	06/15/2023 10:10	06/15/2023 09:40				Spill originated from the lateral from the apartment complex system to the main line in Baker St.	36.615814	-121.838753	Upper Lateral (Private)			50	See Attachments	Y	onsite drain inlet connected to storm drain system. DI in drive isle onsite	50				50	Drainage Conveyance System that discharges to surface water; Paved Surface		Storm drain inlet and paved area around drain inlet.		36.615766	-121.838846							06/15/2023 10:15	Eyeball estimate by field crew	Field crew has over 20 years of experience with SSOs. Eyeball estimate for the amount recovered from the ground and sucked up by vactor truck from blocked storm drain.	Debris-Rags; Debris-wipes/Non-disposables		Gravity Mainline		Vitrified Clay		60	None. Spill recovered and area cleaned	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Blocked storm drain down stream of drain inlet, use vactor truck to collect spill on land and in storm drain conveyance. Clean and disinfect area	Other (specify below)	None required	Rodded mainline to clear blockage. Flow restored		06/15/2023 11:00	No investigation needed. The crew rodded the blocked line and observed the blockage of rags and wipes. Flow was restored. This section of the line does not have a history of blockages.		None	06/15/2023 11:00														Not applicable	Not applicable	Not applicable	Not applicable	Not applicable	Not applicable	Not applicable	Not applicable	None	
2	2SSO10184	Active	San Rafael SD CS	San Rafael Sanitation District	889573	1.4	Certified	Doris Toy	District Manager	20-JUL-23	04-APR-24	04-APR-24	Category 1 Spill	2261 5th	07/17/2023 17:08	07/17/2023 17:34	07/13/2023 12:10	07/17/2023 18:45	23-4600		The spill exited the private cleanout located in the sidewalk in front of 2261 Fifth Ave.   The caller did not notice any overflow the week before but called in a odor complaint on 7/13/23.  Our admin assistant did not notify us regarding this call and instructed the caller to call a plumber.  	37.983333	-122.550228	Lateral Clean Out (Private)	When our crews arrived the cleanout was not overflowing.  There was a partially dried stain near the clean out and parts of the gutter pan were wet.  Booms and filtration fabric were in place around the entrance to the catch basin from a recent construction project.	Argonaut Constructors is working in this area replacing potable water pipes for the Marin Municipal Water District.  Argonaut damaged the sewer pipe during installation of the new water mains.  They did not notify us or repair the pipe.  Instead they covered the damaged pipe with a traffic cone and backfilled over it.  On 7/18/23 we hired WR Forde to emergency excavate over the blocked pipe and found it to be collapsed.	7	After leaving cleanout the spill traveled across sidewalk to the gutter pan and entered the catch basin further down the street.  This gutter pan has evidence of ground water year around with grass growing out of the cracks.  	Y	Upon entering the catch basin the spill continued down to a larger storm drain basin that collects water from 2 other pipes.  It then flows towards San Rafael Creek.   	7	0	All water found in the storm drainage system was clear and showed no evidence of debris due to the booms and filter fabric placed over and around the entrance to the storm drainage system.  	7	7	Drainage Conveyance System that discharges to surface water		When our crews arrived they did not witness an active overflow but did see wetness between cleanout and gutter pan.  There was ponded sewage in gutter pan.  The downstream catch basin had construction booms set up to prevent any solids from entering during the potable water main replacement however no sewage debris was found.  	Y	37.983332	-122.550236							07/13/2023 18:12	measured area of ponded sewage found in gutter pan, catch basin and storm drain pipe, plus stain on sidewalk	calculated cubic feet of spill and converted to gallons	Damage by Others Not Related to Collection System Construction/Maintenance	Argonaut Construction damaged the gravity main while installing a potable water pipe.  They failed to notify us and backfilled over the damaged pipe after covering the crushed pipe with a traffic cone.  	Gravity Mainline		Vitrified Clay		53	No visible impact 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	We completed an emergency excavation over our damaged pipe and found where and how the failure occurred.  We then completed the repair of the pipe.  	Our crews worked with our after hours contractor to temporarily open the pipe before our excavation contractor could make the repair.  Our crews also used a jetter and vac truck to clean the sidewalk, street, curb, gutter and storm drainage system.  All contaminated water was removed by the vac truck	Repaired Facilities or Replaced Defect		Located damaged pipe through cctv and directed contractor to excavate that area.  Once damage was found our inspector documented and the contractor repaired it	7/13/23 call received by our admin staff for odor complaint 7/17/23 after hours contractor received call for overflowing cleanout 7/18/23 completed excavation over damaged pipe	07/18/2023 16:00	on day of initial response the field crews had difficult time opening the pipe.  The rodder cleaning tools came back covered in dry dirt.  When the jetter was used it brought back muddy water with small pieces of pipe.  When CCTV was inserted into pipe we found full collapse.  Upon excavation a traffic cone was found placed over the damaged pipe.	N			San Rafael Creek	Stream/Creek		creek	None	Other (specify below)	No public access.  Creek mainly flows underground but when it does daylight it is contained behind fenced areas.  	Marin County Environmental Health Services	0	N	N												
9	9SSO10703	Active	South Coast Water District CS	South Coast Water District	889579	1.2	Certified	Daniel B. Guerra	Collection Supervisor		24-AUG-23	24-AUG-23	Monthly Category 3 Spill	Camino De Los Mares	07/03/2023 10:22	07/03/2023 10:31	07/03/2023 10:12				Overflow from district MH C395 in Camino De Los Mares (San Clemente) at edge of cross gutter in intersection with Calle Naranja (Dana Point).	33.46002	-117.65512	Manhole			146	Sewage overflowed from manhole C395 into adjacent cross gutter until it reached nearest downstream storm drain catch basin. Next catch basin downstream was dry.	Y	Sewage overflowed from manhole C395 into adjacent cross gutter until it reached nearest downstream storm drain catch basin. Next catch basin downstream was dry.ry.	146				146	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		Sewage overflowed from manhole C395 and reached nearby storm drain catch basin. Next catch basin downstream was dry.	Y	33.459833	-117.655444	33.459583	-117.654944					07/03/2023 10:38	Crew measured diameter (1 ) of manhole vent/pick hole and height (2.5 ) of overflow column discharging from manhole, then referred to reference photos to estimate flow velocity (5.6 GPM). Then multiplied duration of discharge event by velocity to determine total volume discharged.	Crew measured diameter (1 ) of manhole vent/pick hole and height (2.5 ) of overflow column discharging from manhole, then referred to reference photos to estimate flow velocity (5.6 GPM). Then multiplied duration of discharge event by velocity to determine total volume discharged.	Collection System Maintenance Failure (specify below); Fats, Oil and Grease (FOG); Root Intrusion	Roots and grease buildup in sewer main formed blockage that caused backup and overflow.	Gravity Mainline		Other (specify below); Vitrified Clay	VCP pipe with Cured-in-Place Pipe (CIPP) liner.	64	Minimal impact - Spill flowed into cross gutter then ran to storm drain catch basin. Next downstream catch basin was dry, so crew was able to clean up residue and flush storm drain to capture entire spill volume for discharge into collection system. Biggest impact was a single lane closure to clean the line, wash down the street and collect the overflow and washdown water.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Crew used combination jetter truck to collect overflow & prevent additional sewage from reaching storm drain. Then washed down street, curb & gutter, flushed storm drain and collected spill from downstream catch basin. Entire volume of overflow and washdown water was discharged into collection system.	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Staff will video inspect again in 3 months to determine if increase in cleaning frequency is necessary.	Staff will video inspect again in 3 months to determine if increase in cleaning frequency is necessary. Line segment is currently cleaned twice annually and treated with foaming root inhibitor every two years. District will increase frequency of cleaning and root control treatment if video inspection indicates necessity.		07/03/2023 14:03	Recovered grease and roots when cleaning line to remove blockage at time of spill. The line segment has an increased cleaning frequency (biannual) due a history of grease buildup. Staff plans to video inspect the line segment again in 3 months to determine whether increased cleaning frequency would be appropriate. 		Staff will video inspect again in 3 months to determine whether additional preventative measures are needed.	10/31/2023 17:30														Not applicable.	Line segment is currently cleaned twice annually and treated with foaming root inhibitor every two years. District will increase frequency of cleaning and root control treatment if video inspection indicates necessity.	Line segment is currently cleaned twice annually. Staff will video inspect again in 3 months to determine if increase in cleaning frequency is necessary.	Rehabilitation or repair is not currently planned.	Line segment cleaned at time of spill. Staff will video inspect again in 3 months to determine whether repair and/or replacement is appropriate.	No capital improvements currently planned.	Created CMMS work order for return video inspection of line segment with completion scheduled before 10/03/2023.	None determined necessary.	Staff will video inspect again in 3 months to determine whether additional preventative measures are needed.	
5S	5SSO10907	Active	Colfax CS	Colfax City	889588	1.1	Ready to Certify						Monthly Category 3 Spill	South Auburn Street, between 39A2 and 39A1.5	07/21/2023 10:30	07/21/2023 10:40	07/21/2023 10:20				manhole 39B1 ( 39.09673693394992, -120.95085545256048)	39.09682	-120.95085	Manhole			440	spill rate was approximately 5 gallons per minute, with flow running along the street downhill, and partially drained 400 feet away into a storm drain. flow did not completely fill or escape storm drain	Y	storm drain	50				50	Drainage Conveyance System		39.095526, -120.950772	Y	39.095526	-120.950772							07/21/2023 11:48	The San Diego Manhole Flowrate Chart was compared to site pictures taken was used to calculate total spill volume.  vacuum trailer staff estimated spill recovery based on volume of water recovered in vac trailer. 	visual comparison to the San Diego Manhole Flowrate Chart, and visual confirmation of volume recovered.	Debris-Rags		Gravity Mainline		Vitrified Clay		15	no impact to waterways or local residents. spill was contained to local roadway and single storm drain. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		spill cleaning response included partial capture of spill water using vacuum trailer.	Added Sewer to Preventive Maintenance Program		spill noted in Preventative maintenance program		07/21/2023 13:00	spill caused by rag mass in collection system		not applicable	07/21/2023 13:00														not applicable	location noted in Preventative maintenance program	priority increased for spill location in Preventative maintenance program	none	not applicable	not applicable	not applicable	priority increased for spill location in Preventative maintenance program	not applicable	
5S	5SSO10907	Active	Colfax CS	Colfax City	889589	1.0	Work In Progress						Monthly Category 3 Spill	South Auburn Street, between 39A2 and 39A1.5	07/21/2023 10:30	07/21/2023 10:40	07/21/2023 10:20				manhole 39B1 ( 39.09673693394992, -120.95085545256048)	39.09682	-120.95085	Manhole			440	spill rate was approximately 5 gallons per minute, with flow running along the street downhill, and partially drained 400 feet away into a storm drain. flow did not completely fill or escape storm drain		storm drain	50				50	Drainage Conveyance System		39.095526, -120.950772		39.095526	-120.950772							07/21/2023 11:48	The San Diego Manhole Flowrate Chart was compared to site pictures taken was used to calculate total spill volume.  vacuum trailer staff estimated spill recovery based on volume of water recovered in vac trailer. 	visual comparison to the San Diego Manhole Flowrate Chart, and visual confirmation of volume recovered.	Debris-Rags		Gravity Mainline		Vitrified Clay		15	no impact to waterways or local residents. spill was contained to local roadway and single storm drain. 		Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		spill cleaning response included partial capture of spill water using vacuum trailer.	Added Sewer to Preventive Maintenance Program		spill noted in Preventative maintenance program		07/21/2023 13:00	spill caused by rag mass in collection system		not applicable	07/21/2023 13:00														not applicable	location noted in Preventative maintenance program	priority increased for spill location in Preventative maintenance program	none	not applicable	not applicable	not applicable	priority increased for spill location in Preventative maintenance program	not applicable	
3	3SSO10272	Active	Greenfield, City Of CS	Greenfield City	889592	1.2	Certified	Jamie Tugel	Public Works Director		22-JUL-23	22-JUL-23	Monthly Category 3 Spill	326 Eucalyptus Drive	07/19/2023 19:26	07/19/2023 20:19	07/19/2023 19:00				Spill originated at manhole due to sewer main blockage	36.32664	-121.23913	Manhole			526	Spill extents were the width of the asphalt roadway, into gutters, into 2 storm drain inlets that are connected to eachother, flowing through a storm drain conveyance pipe, terminating into a percolation pond that is a terminal percolation pond	Y	MH overflow due to main blockage:  appearance from Manhole, flow into asphalt road and gutters.  Gutter led to 2 storm drains, which are connected.  The storm drain termination is a percolation pond that is a terminal basin	0				0	Drainage Conveyance System; Street/Curb and Gutter (2 3); Unpaved Surface		MH overflow due to main blockage:  appearance from Manhole, flow into asphalt road and gutters.  Gutter led to 2 storm drains, which are connected.  The storm drain termination is a percolation pond that is a terminal basin	Y	36.32663	-121.23913	36.3274	-121.23839					07/19/2023 22:15	Volume estimation was determined by duration of spill using estimated flow out of a manhole pick hole.  	Spill start time was estimated through conversation with the RP (Fire Dept) and the estimated time they were notified by a resident.  Spill end time was recorded by staff onsite when no more flow out of the pick hole was seen.	Debris-Rags; Fats, Oil and Grease (FOG)		Gravity Mainline		Other (specify below)	pipe material unknown	40	The impact of the spill was minimal, and did not present a human health issue.  	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow		After hours spill, called in additional staff to assist.  Road was closed to through traffic.  Jetter truck brough on site to jet the main line and clear the blockage.  Once clear, granual chlorine was spread on the street and gutters, worked with a broom and rinsed with plenty of water (from fire hydrant) to also reach the percolation pond for disinfection as well	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance		Added visual inspection check of the manhole to a routine preventative maintenance schedule;  discussed FOG with 3 adjacent residents while on site		07/20/2023 12:45	No investigation conducted.  		None	07/19/2023 20:15														N/A	FOG education to the residents in the tributary area	Daily visual check of manhole.   	none scheudled	N/A	This sewer main is already scheduled for cleaning and video inspection within the next 3 years, and may be moved into this year's sector of the project	Manually added to the daily manhole check sheet	N/A	None	
1	1SSO11419	Active	Humboldt CSD CS	Humboldt CSD	889594	1.1	Certified	Tim Latham	Superintendent		27-JUL-23	27-JUL-23	Monthly Category 3 Spill	Fairway Drive	07/12/2023 12:19	07/12/2023 12:30	07/12/2023 12:00				The spill came from an inline clean-out on a sewer main line on Fairway Drive in Eureka, Ca. The GPS coordinates are listed below.	40.75867	-124.1701	Gravity Mainline; Other (specify below)	Inline clean-out on a gravity sewer main line		450	Approximately 75% of the spill was captured at the appearance point and returned to the sewer system. Approximately 25% dried on the paved surface.	N						338	Paved Surface		Paved road surface near spill appearance point										07/12/2023 13:30	Visual	Contractor was onsite when spill started. 	Damage by Others Not Related to Collection System Construction/Maintenance		Gravity Mainline		Other (specify below)	Asbestos Cement	50	25% evaporated on paved surface, 75% was captured at the appearance point and returned to sewer system	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Utilized Vac-con (vacuum truck) to contain the spill at the appearance point while a second Vac-con hydro-cleaning truck cleaned the main line and relieved the blockage. Once the flow was returned to normal, crews filmed the sewer main line to insure no further issues remained, and cleaned up all affected areas. Notification and reporting requirements were completed.	Other (specify below)	removed concrete chunks from sewer main line, and used CCTV to film to insure that no further obstructions remained	N/A		07/12/2023 15:30	A contractor was performing a paving project for the City of Eureka on Fairway Drive. The contractor had done work around the inline clean-out on the gravity sewer main line in preparation of final paving. The contractor accidentally dropped concrete chunks down the clean-out into the sewer main line which eventually caused the overflow. After removing the concrete chunks, and cleaning and filming the sewer main line to insure no further issue remains, no further investigation is necessary to the cause.		No	07/12/2023 15:30														No	N/A	N/A	N/A	N/A	N/A	N/A	N/A	No	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	889596	1.3	Certified	Ameal McLaurin	Sewer Supervisor 2		24-JUL-23	24-JUL-23	Monthly Category 3 Spill	895 47th Street, Oakland Ca	07/21/2023 15:16	07/21/2023 16:15	07/21/2023 15:00				895 47th Street: Spill originated from shower drain in bathroom, spilled to laundry room, and to closet. Property owner had cleaned the place when the crew arrived. 897 47th Street: Spill originated from floor drain in driveway, destination to basement.	37.83572	-122.27278	Inside Building or Structure	2 Properties: 895 47th Street: Spill originated from shower drain in bathroom, spilled to laundry room, and to closet. Property owner had cleaned the place when the crew arrived. 897 47th Street: Spill originated from floor drain in driveway, destination to basement.		76	2 Properties: 895 47th Street: Spill originated from shower drain in bathroom, spilled to laundry room, and to closet. Property owner had cleaned the place when the crew arrived. 897 47th Street: Spill originated from floor drain in driveway, destination to basement.	N						76	Building or Structure		2 Properties: 895 47th Street: Spill originated from shower drain in bathroom, spilled to laundry room, and to closet. Property owner had cleaned the place when the crew arrived. 897 47th Street: Spill originated from floor drain in driveway, destination to basement.		37.83573	-122.27296							07/21/2023 16:40	895 47th Street: Bathroom, 6'L x 6'W x .04'D x 7.48-gal = 11Gallons Shower, 6'L x 3'W x .33'D x 7.48 Gal=44 Gallons Laundry room, 6'L x 4'W x .02'D x 7.48-Gal= 4 Gallons Closet, 6'L x2.5'W x .01'D x 7.48-Gal = 1 Gallon Total for 895 47th Street: 11 + 44 + 4 + 1 =60 Gallons 897 47th Street: Driveway, 8'L x 5'W x.01'D x 7.48-Gal =3 Gallons Basement: 12'L x 12'W x.01'D x 7.48-Gal = 11 Gallons Puddle in Basement: 2'L x 2'W x .08'D x 7.48-Gal = 2 Gallons Total in 897 47th Street: 3 + 11 + 2 = 16 Gallons All total spill: 60 + 16 = 76 Gallons	Complaint caller was asked when the spill was first noticed (Start time) and the spill end time was noted when the mainline blockage was cleared.	Debris-Rags; Fats, Oil and Grease (FOG)	 Debris-Rags and Fats, Oils, and Grease (FOG)	Gravity Mainline		Vitrified Clay		24	895 47th Street: Spill originated from shower drain in bathroom, spilled to laundry room, and to closet. Property owner had cleaned the place when the crew arrived. 897 47th Street: Spill originated from floor drain in driveway, destination to basement.	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Claim packets to have buildings cleaned up by Restoration companies.	The recovered spill estimate was when the spill returned back to Sewer system when the mainline blockage was cleared. Property owners were also provided with claim packets to have buildings cleaned up by Restoration companies.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Adjusted Mainline to 3 Months High Frequency Maintenance Program.		07/24/2023 10:00	CCTV inspection found sags ranging from 5% to 25%. Overflow was likely caused from a collection of debris/grease within sags.		CCTV Investigation is completed.	07/24/2023 10:00														N/A	Adjusted Mainline to 3 Months High Frequency Maintenance Program.	Adjusted Mainline to 3 Months High Frequency Maintenance Program.	N/A	CCTV mainline inspection is completed. Adjusted Mainline to 3 Months High Frequency Maintenance Program.	N/A	Adjusted Mainline to 3 Months High Frequency Maintenance Work Order # 1432706	Adjusted Mainline to 3 Months High Frequency Maintenance Program	CCTV Investigation is completed.	
3	3SSO10287	Active	Marina Coast CS	Marina Coast WD	889597	1.4	Certified	Derek Cray	Operations & Maintenance Manager		26-OCT-23	26-OCT-23	Monthly Category 3 Spill	1st street / Divarty	07/21/2023 11:10	07/21/2023 11:40	07/21/2023 10:25				Sewage exited the manhole and was contained within the ruts which routed all flow to the lowest point which acted as a containment. Using our vactor truck most of the sewage was recovered from that point. 	36.65144	-121.81251	Manhole			624	All sewage was contained on the dirt road. Sewage stayed on the dirt road and was directed to the lowest point through the ruts where it was contained. At this point the vacuum truck was able to begin recovering sewage. 	N						500	Unpaved Surface		SSO originated from location 11.D/E and headed west and was contained at location 11.F/G. Sewage was directed west by the ruts on the dirt road. 	Y	36.65141	-121.81251	36.6518	-121.81323					07/21/2023 12:40	Total impacted area was measured. The depth was measured by way of a cone with stenciled depths. Soil saturation was included in the calculation.  	length x width x depth= cubic ft x 7.48 = gallons total cubic ft 83.47.  83.47 x 7.48= 624 gal	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		55	All sewage was contained on the dirt road which allowed for recovery of most of the sewage. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		All sewage was contained within the ruts and collected at the lowest elevation. Sewage was then removed using our vactor truck. Area was lightly misted with CL2 and all debris was removed. Saturated soils within the conatained area was removed to a depth of approximatlety 6 inchs. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Increased the frequency of maintenance performed at this location		07/24/2023 10:47	While jetting the sewer main, grease debris was seen floating by. 		Sewer main will be inspected via CCTV on 7/24/23. 	07/24/2023 11:11														N/A	Increased the frequency of maintenance performed at this location	Increased the frequency of maintenance performed at this location	Asset was recently inspected by use of CCTV unit, main was found to be in good condition. 	Asset was recently inspected by use of CCTV unit, main was found to be in good condition. 	N/A	Increased the frequency of maintenance performed at this location	N/A	Sewer main will be inspected via CCTV on 7/24/23. 	
2	2SSO10217	Active	West Valley Sd CS	West Valley SD	889598	1.2	Certified	Kelvin Hatchett	Operations Supervisor		30-AUG-23	30-AUG-23	Monthly Category 3 Spill	Fruitvale Ave 	07/20/2023 13:10	07/20/2023 13:40	07/20/2023 10:33				Appearance point was from manhole 5-039-03 spill located on roadway and surrounding vegetation. Spill Also contained within a Storm Catch Basin and pipe fully recovered.   	37.25453	-122.01381	Gravity Mainline		none	259	Photos, Maps and locations attached	Y	Spill made its way to a storm catch basin and drainage pipe. Storm pipe was found to be blocked with debris allowing the crew to recovered spill from basin and pipe. Downstream pipe and basin was dry. pictures of entry location and map attached.	195				259	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		spill located on roadway and surrounding vegetation. Spill Also contained within a Storm Catch Basin and pipe.   	Y	37.25447	-122.0138	37.25452	-122.01377	37.25453	-122.01385	37.25468	-122.01388	07/20/2023 13:51	Area Volume Method /  Duration and Flow rate was also consider to validated estimation.	Passer by information, resident contact. End time generated from WVSD crew.	Debris-Rags; Root Intrusion		Gravity Mainline		Vitrified Clay		75	Crews were able to limit impact. Storm pipe and Catch basin impacted, wet roadway so there was some impact to traffic..	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Crews were able to build a berm to limit further spill into storm system. Street was washed down all spill debris was removed from the area using combo unit (vacuum). Traffic was diverted around spill area. Flow was restored to normal. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		 Sewer pipe section 5-039-03 has been televised and found to be clear of all debris. Section is on a 36 month frequency, this will remain unchanged at this time. Cleaning method has been changed from an all purpose nozzle to a Chain Rotor cutter nozzle Because. Section will be re-televised in 24 months to assess cleaning frequency.		07/24/2023 13:40	A review of this spill, including service history and previous CCTV inspections revealed roots at several joint and laterals in 2019. It is believed that the nozzle (All purpose) was not efficient enough to remove the root intrusion.   		Yes segment to be CCTV'd and re-evaluated in 24 months.   	08/30/2023 15:00														None taken	Evaluating Cleaning frequency and method. CCTV of pipe segment to identify Debris type and condition. 	 No change to frequency. Method of cleaning nozzle changed to Chain Flail from all purpose nozzle.  	None at this time	None at this time	None at this time	See attached. (7)	Evaluating Cleaning frequency and method. CCTV of pipe segment to identify Debris type and condition. 	Yes segment to be CCTV'd and re-evaluated in 24 months.   	
7	7SSO10535	Active	Coachella Valley Water District CS	Coachella Valley WD	889599	1.4	Certified	Luis Torner	Wastewater Operations Manager		04-AUG-23	04-AUG-23	Monthly Category 3 Spill	Sunrise Mountain View, Palm Desert	07/04/2023 16:23	07/04/2023 17:37	07/04/2023 16:15				See Attachment 	33.7808	-116.288	Manhole	See Attachment		174	See Attachment 	Y	Spill remained on North shoulder of Sunrise Mountain View and within the vault that led to the retention basin (golf course area).	170				170	Drainage Conveyance System; Paved Surface		See Attachment	Y	33.78055	-116.28395	33.77956	-116.28456					07/04/2023 17:52	Volume estimation is based on diagram estimation by measurement of spill surface area and volume present. Drop manhole was restricting most flow but not completely. SEE ATTACHMENT	Volume estimation is based on diagram estimation by measurement of spill surface area and volume present.  Drop manhole was restricting most flow but not completely.  SEE ATTACHMENT	Debris-Rags		Gravity Mainline		Vitrified Clay	Drop manhole outlet was restricting flow due to rags. 	23	See Attachment	N	Cleaned Up (specify below); Contained All or Portion of Spill		See Attachment	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	hydro jetting mainline	Gravity mainline was inspected and cleaned by means of hydro-jetting,  system was inspected around adjacent area and manhole recieved a follow up inspection.  		07/04/2023 21:00	Spill was caused by ragging in the drop manhole outlet restricting flow in the pipeline segment between manhole 4-5 on GEO 040731-1.		System inspection and CCTV of mainline.	07/07/2023 14:30														N/A	Will follow up with CCTV inspection of the pipe segment in one month.	Will follow up with CCTV inspection of the pipe segment in one months, no adjustment to PM schedule. 	N/A	040731-1 MH4 and MH5	N/A	See Attachment	See Attachement 	System inspection and CCTV of mainline.	
7	7SSO10535	Active	Coachella Valley Water District CS	Coachella Valley WD	889602	1.2	Certified	Luis Torner	Wastewater Operations Manager		04-AUG-23	04-AUG-23	Monthly Category 3 Spill	Avenue 50 1000' west of Park Avenue 	07/19/2023 09:06	07/19/2023 09:06	07/19/2023 09:06				Private contractor hit 18  sewer force main while boring for City of La Quinta.	33.68554	-116.286	Force Main			836	The spill came out of the ground and spilled along the curb and gutter for approximately 300', the drill was left in place until the force main was isolated and flows were diverted to prevent additional flow to spill from location.	N						836	Paved Surface; Street/Curb and Gutter (2 3)		The spill came out of the ground and spilled along the curb and gutter for approximately 300'	Y	33.68551	-116.286	33.68551	-116.2871					07/19/2023 10:10	See attachment	Supervision was notified by an operator on site providing High Priority Standby coverage when the contractor hit the line. After diverting flows and arriving on site supervision was able to verify that the spill had ended.	Damage by Others Not Related to Collection System Construction/Maintenance		Force Main		Polyvinyl Chloride (PVC)		37	Spill was mitigated, contained and returned to the gravity system with minimal impact. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Returned All Spill to Sanitary Sewer System		After notification of the spill, flows were diverted and the sewer force main was isolated mitigating the spill. A dirt berm was utilized to contain the spill for clean up and the combination truck cleaned up the spill and returned the spill back into the gravity system.	Repaired Facilities or Replaced Defect		Damaged section of pipe was repaired. See attachments. 		07/19/2023 11:00	See attachment Incident report 		Collections system operator will remain on site with contractor through the remainder of the project. Potholed force main to ensure location accuracy.	07/21/2023 08:22														N/A	N/A	N/A	N/A	See attachment 	N/A	N/A	N/A	Collections system operator will remain on site with contractor through the remainder of the project. Potholed force main to ensure location accuracy.	
4	4SSO10423	Active	Rolling Hills City Estates CS	Rolling Hills Estates City	889607	1.1	Certified	Robert Swartz	Sr. CE		03-AUG-23	03-AUG-23	Monthly Category 3 Spill	1545-0175 (4 Peartree Lane, Rolling Hills Estates, CA 90274)	07/11/2023 07:15	07/11/2023 09:00	07/11/2023 07:00				Spill appearance point Manhole No. 175 CSMD Map Sheet No. 1545 MMS No. 8318682	33.76403	-118.38862	Manhole	Manhole No. 175		50	A landslide caused the mainline to collapse into the hillside.	N						0	Unpaved Surface		A small section of pipe had collapsed into the hillside. 	N									07/11/2023 09:15	Visual/eyeball method.	Visual/eyeball method.	Natural Disaster (specify below)	Landslide caused mainline to collapse. 	Gravity Mainline; Other (specify below)	Landslide caused mainline to collapse. 	Vitrified Clay		46	The landslide caused the mainline to collapse.  The spill destination was onto the unpaved surface.	N	Other Enforcement Agency Notified	Inspected sewer, set up bypass pump	Had the CCTV crew verify the damage to the mainline and other adjacent lines. A bypass pump was also set up in case there was to be further damage to adjacent lines that run close to the landslide area. 	Other (specify below)	installed temporary bypass. 	Recommendations will be made after an assessment of the land movement is made.		07/11/2023 18:00	Recommendations will be made after an assessment of the land movement is made by a Geologist. 		Recommendations will be made after an assessment of the land movement is made by a Geologist. 	09/11/2023 18:00														N/A	Recommendations will be made after an assessment of the land movement is made by a Geologist.	N/A	N/A	Repair/replace defective assets. 	N/A	N/A	N/A	Recommendations will be made after an assessment of the land movement is made by a Geologist. 	
3	3SSO10252	Active	Santa Cruz City CS	Santa Cruz City	889608	1.0	Work In Progress						Monthly Category 3 Spill	209 Vista Bella Drive	07/24/2023 08:40	07/24/2023 08:50	07/22/2023 18:49					36.99704	-122.01244	Lateral Clean Out (Private)			840		Y	Spill contained in Storm catch basins P11-CB601 and P11-CB603	800				800	Drainage Conveyance System			Y	36.99704	-122.01244								Based on descriptions from eyewitness on the scope and duration of the spill, there was a miscommunication from NetCom to a city landline that is not monitored RP was mistakenly given number for County instead of City. Flow was estimated at 1 gallon per minute over 14 hours based on video of the overflow out of the lateral cleanout.	Voicemail and description from RP and eyewitness accounts from various neighbors on the start of the spill. End time is based on city staff actions.	Other (specify below); Root Intrusion	Follow up CCTV revealed broken pipe at a joint that may have caused some of the obstruction.  	Gravity Mainline		Vitrified Clay		60	No impact to humans or animals, no know impact to water quality.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Follow up CCTV inspection.	City crew relieved main line stoppage with combination unit, allowed the line to clear and hydro-flushed main from manhole to manhole. Crew vacuumed out the affected catch basins and washed down pavement area capturing the wash water.	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Spot repair of any defects discovered in CCTV report. 																														
5F	5SSO10744	Active	Mariposa PUD CS	Mariposa PUD	889609	1.1	Certified	Susan Wages	General Manager		27-JUL-23	27-JUL-23	Monthly Category 3 Spill	6th and Bullion Streets	07/24/2023 11:28	07/24/2023 11:35	07/24/2023 10:00				Sewer seeping from gravity fed manhole located at 6th and Bullion Streets, Mariposa, CA.	37.49824	119.95846	Manhole			200	The spill traveled about 100 feet from the manhole.	N						0	Paved Surface		The spill event destination was about 100 feet from the manhole on a paved surface.	N									07/24/2023 12:10	Gravity flow system, less that 5 gallons per minute based on study by Tom Walski, Ph.D., P.E., How Much Wastewater is Coming Out of a Manhole.	Spill start time was estimated based on the last time one of our employees drove over the manhole cover.  Spill end time is actual and was recorded by an employee.	Debris from Construction		Manhole		Vitrified Clay		60	Minimal impact to street pavement, hot day, evaporated in 30 minutes. No debris, just water.	N	Restored Flow		Spill confined to paved street with very little traffic.  Liquid evaporated quickly.	Other (specify below)	Checked manholes below effected manhole.	Continue with monthly cleaning of this pipe segment.  Checked downstream manholes for construction debris.		07/24/2023 15:03	Unable to locate cause of spill/ construction debris.		n/a	07/24/2023 16:00														n/a	n/a	Continue with monthly maintenance.	Construction project has begun to replace 3,378 feet of pipe and manholes.	Replacing asset.	Replacing sewer main and manholes.	n/a	n/a	n/a	
3	3SSO10307	Active	Pismo Beach CS	Pismo Beach City 	889616	1.3	Certified	William Haas	Utilities Manager	25-JUL-23	25-JUL-23	25-JUL-23	Category 1 Spill	In tersection of Bello and Wadsworth	07/24/2023 11:42	07/24/2023 11:55	07/24/2023 11:30	07/24/2023 13:30	23-4745		Sanitary sewer became plugged causing a back up at the manhole.  Spill lasted approximately 30min at an estimated flow of 50gpm.  Spill ran to a storm drain and traveled approximately 1/4 mile to the beach.   	35.14496	-120.64136	Manhole			1500	Spill was approximately 1500gallons traveling in the gutter to a storm drain that leads to a beach out fall.  	Y	Traveled 200yds to storm drain inlet	0	0	Discharge point was on the beach at Cypress and Wadsworth out fall.  Flow stopped 75yds from high tide line.  Tide was out at the time of spill	0	0	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		Sanitary sewer became plugged causing a back up at the manhole.  Spill lasted approximately 30min at an estimated flow of 50gpm.  Spill ran to a storm drain and traveled approximately 1/4 mile to the beach.   	Y	35.14496	-120.64136							07/24/2023 12:00	observed flow from, manhole and used City of San Diego's Collection system guidelines.  Figured flow at 50gpm at 30min = 1500gallons	Based on when we received the call and the reporters estimate of start time. I checked time for when we arrived and when the vactor arrived.  Checked time when flow was restored in sewer and witnessed flow cease at manhole.	Debris from Construction; Debris-General		Gravity Mainline; Manhole		Concrete		20	Flow reached the beach.  Only the sand.  75yards away fro high tide line.  No impact to public or wildlife.	N	Cleaned Up (specify below); Restored Flow		Arrived and immediately ran a jetter up the line to clear blockage. Restored flow to sewer.  used a mixture of bleach and water to clean up surfaces.  Covered contaminated sand on beach with clean sand per county health.  County health posted location. 	Other (specify below)	Sewer was just inspected 10 days prior.  Construction in the area may have cause loose debris to accumulate and plug the pipe.  Road is being repaved and large volumes of truck traveling over the road.	We have an ongoing line maintenance program.  Will continue to clean an dinspect lines.	NA	07/24/2023 12:00	Asphalt, plastic bag and brick found in line.  Possible shaken loose from heavy construction on the road	N			none	Other (specify below)	did not reach a body of water		none	Other (specify below)	posted in the spill area	County Health	3	N	N												
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	889618	1.4	Certified	Kent Vian	Asst. Deputy Director	01-AUG-23	03-AUG-23	03-AUG-23	Category 1 Spill	NOT# 40200989988, 1740 EAST MISSION BAY DR.	07/20/2023 23:05	07/20/2023 23:37	07/20/2023 23:04	07/21/2023 01:47	23-4682		System location is at Sewer Pump Sta. 58, 1740 East Mission Bay Dr.  located between the north and south parking lots. Sewer release was caused by damaged pump, due to rags and debris which cause the pump to fail.  5  appearance points, same location SPS 58.   SEE ATTACHMENT FOR INFO.	32.77452	-117.20876	Other (specify below); Pump Station	4-TOILETS LOCATED AT SPS 58. OVERFLOWED.	N/A	1950	THE BOUNDARIES OF THE SPILL COMING FROM SPS 58 WAS 10  TO 13' WIDE, NORTH TO  SOUTH AND 40  WEST TO THE BAY.  CONCRETE AREA IN FRONT OF SPS 58 GRASS/DIRT/SAND/ AREA LEADING TO THE BAY.   SEE ATTACHMENT FOR INFO.	N	N/A			SEWER EXITING SPS 58, WAS TRAVELING WEST APPROXIMATLY 10 TO 13' WIDE AND TRAVELING 40' BEFORE GOING INTO MISSION BAY.   SEE ATTACHMENT FOR INFO.	1950	0	Building or Structure; Other (specify below); Paved Surface; Unpaved Surface	Mission Bay 	Mission Bay/Enchanted cove	Y	32.77411	-117.21011							07/22/2023 12:25	Visual 	Visual seen the spill occurring and when flow was restored. 	Debris-General; Debris-Rags; Pump Station Failure - Mechanical		Pump Station - Mechanical		Other (specify below)	Pump Station Mechanical	17	Mission Bay closure.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow		Crew set up investigation notified pump crew, isolated valve and contained wet well. 	Repaired Facilities or Replaced Defect		Repaired defect. 	None	07/22/2023 12:41	Pump Station Mechanical failure	N			Mission Bay/Enchanted cove	Ocean	Mission Bay/Enchanted cove		none	Public Closure		San Diego DEH and San Diego Beach & Bay	2	N	Y	Spill entry, 300 feet north and 300 south of pump station 58, Tecolote Shores, Enchanted Cove, Fiesta Island NW Shores, Leisure Lagoon	Fecal Coliform, enterococcus, Total Coliform										
4	4SSO10420	Active	Rancho Palos Verdes City CS	Rancho Palos Verdes City	889621	1.3	Certified	Robert Swartz	Sr. CE	26-JUL-23	03-AUG-23	03-AUG-23	Category 1 Spill	1492-0061 (30623 Rue Valois, Rancho Palos Verdes)	07/22/2023 12:20	07/22/2023 14:45	07/21/2023 22:00				CSMD Map Sheet No. 1492 Manhole No. 61 MMS No. 8323682 The spill originated at manhole 61, see attached photograph. 	33.75498	118.40916	Manhole	Manhole No. 61		500	The spill originated at manhole 61 and the final destination was a separate storm drain located behind 30643 Rue Valois. 	Y	The spill originated at manhole 61 into a separate storm drain located behind 30643 Rue Valois, which leads to Private Drain 0151 - Line A to Unknow Drain to City Drain. The watershed boundaries are Santa Monica Bay.	0	0	The spill originated at manhole 61 into a separate storm drain located behind 30643 Rue Valois, which leads to Private Drain 0151 - Line A to Unknow Drain to City Drain. The watershed boundaries are Santa Monica Bay.	500	0	Drainage Conveyance System; Street/Curb and Gutter (2 3)		The spill originated at manhole 61, entering separate storm drain located behind 30643 Rue Valois. This drain leads to a private drain, and from there, it flows to an unknown drain before eventually reaching city drain. The watershed boundaries for this area are defined by Santa Monica Bay.	N									07/21/2023 00:00	CWEA SSCSC Manhole Overflow Gauge	CWEA SSCSC Manhole Overflow Gauge	Other (specify below)	Unknown - mainline stoppage was relieved upon arrival of crew.	Gravity Mainline; Manhole		Vitrified Clay		64	The spill originated at manhole 61, entering separate storm drain located behind 30643 Rue Valois. This drain leads to a private drain, and from there, it flows to an unknown drain before eventually reaching city drain. The watershed boundaries for this area are defined by Santa Monica Bay.	N	Cleaned Up (specify below); Other (specify below); Other Enforcement Agency Notified	Hydro cleaned mainline.	Upon arrival, Ocean Blue promptly cleaned up and washed down the sewage spill. The mainline was inspected and found to be in good condition. As a precautionary measure, we hydro cleaned the mainline, but no issues were discovered during the process. 	Other (specify below)	We will conduct a CCTV inspection of the sewer to assess whether any additional actions are necessary. 	We will conduct a CCTV inspection of the sewer to assess whether any additional actions are necessary. 	N/A	07/22/2023 17:10	N/A	Y	We will conduct a CCTV inspection of the sewer to assess whether any additional actions are necessary. 	10/04/2023 10:34	Santa Monica Bay. Pacific Ocean	Ocean			No impacts observed	Other (specify below)	No impact	Public Health	0	N	N											We will conduct a CCTV inspection of the sewer to assess whether any additional actions are necessary. 	
4	4SSO11403	Active	County Sanitation District No. 29 CS	Los Angeles Cnty Sanitation Districts	889623	1.2	Certified	Kristen Ruffell	Asst Departmental Engineer	25-JUL-23	04-AUG-23	04-AUG-23	Category 1 Spill	28th Street Trunk (District 29)	07/20/2023 12:45	07/20/2023 12:38	07/20/2023 12:45	07/20/2023 16:38	23-4673		See attachment	33.810756	-118.163307	Manhole			4520	See attached	Y	See attached	0	3720	See attached	3720	800	Surface Water		Destination 1: Manhole 29 0163 Destination 2: Storm water catch basin. Destination 3: Discharge location from storm water conveyance system to the Los Cerritos Channel	Y	33.810759	-118.163304	33.811129	-118.163368	33.812896	-118.142459			07/20/2023 14:45	Spill volume that entered the nearby storm water conveyance system was estimated by comparing visual inspection with recorded videos of the flow exiting the manhole with San Diego Metro Water Department Overflow Picture Chart and Orange County Area Waste Discharge Requirements Steering Committee�s �Pick and Vent Hole Estimation Chart�. Two flow rates were estimated from observed spill flow at 75gpm and 18gpm. The flow rate throughout the duration of the SSO was estimated to be the average of these two values, at 46.5gpm. Spill duration was estimated to be 80 minutes, beginning at the time flow was first observed to be exiting the manhole (12:45 p.m.) and ending when the spill was contained (2:05 p.m.). The 800 gallons of spill volume that was recovered by the Districts was estimated based on tank capacity of the combination vacuum-jetter used to collect the sewage escaping the surcharging manhole.	See question 3.	Other (specify below)	A broken City water main caused significant potable water to infiltrate and inflow into MH 29 0166, overwhelming the sewer system and causing surcharge downstream at MH 29 0163.	Manhole		Vitrified Clay		20	Reached storm water catch basin, Los Cerritos Channel and likely reached the Pacific Ocean.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	See attachment	Built berm surrounding the overflowing manhole and captured spill volume with combination vacuum-jetter. Pumped potable water from broken water main directly to the storm drain to avoid further inflow into the sewer system Flushed, washed, and sanitized street/curb and gutter with potable wash water. All wash/flush water was collected and returned to the sewer system. Sampling	Other (specify below)	See attachment.	See response to question 10a.	Replace manhole frame and cover � Mid-August 2023 Inspect manhole and, if needed, initiate further repairs  � Late August 2023 	07/20/2023 16:36	See attachment.	N			Los Cerritos Channel	Other (specify below)	Concrete lined channel tributary to the Pacific Ocean.		N/A	Other (specify below)	No impact to public access as a result of the spill.	N/A	0	N	Y	Sample 1: 33.8080633, -118.1632765 Sample 2: 33.8131467, -118.1403644 Sample 3: 33.81335, -118.14012 Sample 4: 33.8103240, -118.1324495	Samples tested for Total Coliform, Fecal Coliform, Enterococcus, and E. Coli, and ammonia.										
2	2SSO10104	Active	Ccsf - San Francisco Airport CS	CCSF - San Francisco Airport	889636	1.3	Certified	Jennifer Acton	Director of Maintenance		26-JUL-23	26-JUL-23	Monthly Category 3 Spill	Gate G3 Pedestrian Breezeway	06/19/2023 10:05	06/19/2023 10:15	06/19/2023 10:00				One lateral drain line cleanout	37.61748	-122.39094	Lateral Clean Out (Public)			213	Spill from the appearance point affected the nearby paved surface and flowed to  nearby storm drain catch basin.  	Y	Spill flowed from cleanout onto paved surface and towards a nearby storm drain catch basin that leads to a pump station that can be isolated or diverted as needed to Mel Leong Treatment Plant.	213				213	Drainage Conveyance System; Paved Surface		Sanitary sewage overflowed from the cleanout and affected the nearby ground surface and one storm drain catch basin.  	Y	37.61744	-122.39087							06/19/2023 11:11	Flow rate, using visual/eyeball estimation, was conducted by responding Spill Team member on scene.  Total volume estimation calculation was  performed using flow rate and spill event start and stop times.	Spill incident information and reports provided by responding Airport personnel; Airfield Operations Officer, Airport Plumbers, and Airport Spill Team	Debris-General; Debris-wipes/Non-disposables		Lower Lateral		Concrete; Other (specify below)	RCP	23	Ground surface and one nearby storm drain catch basin affected.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Flow restored after Plumbers used drain snake to remove the blockage.  Ground surface was cleaned by scrubbing contractor.  Affected storm drain system was flushed by Plumbers on 6/20/23 using potable water and vactor truck, all waste was captured and returned to the sanitary system for processing.	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below)	Additional investigation is planned	Adjust preventative maintenance procedure, investigate sanitary sewer drain sources, tenant outreach and training, and additional investigation.		06/20/2023 08:30	Plumbers determined blockage was caused by non-dispersibles and general debris after using drain snake to remove the blockage.		Airport Engineers and Plumbers to assist with investigating pipe runs and sources of sanitary waste to this location.  Additional camera investigation may be planned depending on initial information gathered.	06/19/2023 11:11														not applicable	Routine monthly jetting of drain line will be scheduled to assist with preventing blockages caused by non-dispersibles. CCTV as necessary. Tenant outreach planned.	Change from monthly drain snaking to monthly jetting	None at this time.  Pending further investigation.	Pending further investigation.	None planned at this time.	None planned at this time.  Pending further investigation.	None 	Airport Engineers and Plumbers to assist with investigating pipe runs and sources of sanitary waste to this location.  Additional camera investigation may be planned depending on initial information gathered.	
5S	5SSO10884	Active	Camanche South Shore CS	East Bay MUD (EBMUD)	889641	1.3	Certified	Roberto C Cortez	Manager of Water Supply		27-JUL-23	27-JUL-23	Monthly Category 3 Spill	11700 Wade Lane, Wallace, CA 95225	07/16/2023 10:20	07/16/2023 11:05	07/16/2023 09:30				A foreign object (stick) was inserted into the collection system. Debris was caught on the stick and resulted in a blockage in main sewer line at lateral connection. Debris was removed and sewer service was restored. No defects in main sewer line were detected during cctv inspection, see attached field documentation.	38.2133	-120.92423	Manhole			290	spilled sewage, mainly liquid, soaked into neighboring unpaved ground. Area was flushed with gentle hose and allowed to dry with the sun. Area was cordoned off from public access.	N						0	Unpaved Surface		dirt area surrounding manhole 										07/16/2023 11:55	measured volume method, and duration and flow method, see attached worksheets	see attached worksheets	Other (specify below)	foreign object was found in manhole with debris build-up	Manhole		Polyvinyl Chloride (PVC)		30	spill consisted mainly of liquid, that soaked into the surrounding dirt, no other impacts to environment	N	Cleaned Up (specify below); Restored Flow		foreign object and debris that caused blockage was removed, main sewer line was cctv's upstream and downstream, in addition to adjacent cleanouts, no defects were observed.	Inspected Sewer Using CCTV to Determine Cause		outreach material is posted in all public bathrooms		07/16/2023 11:55	cause of spill was identified as a foreign object with debris, which was immediately removed		not applicable	07/18/2023 16:00														not applicable	not applicable 	not applicable	not applicable	main sewer line was cctv'd after debris was removed, no further action required	no repair work necessary	not applicable	response was efficient and effective, no modifications required	not applicable	
3	3SSO11408	Active	Hollister Municipal Sewer System CS	Hollister City	889646	1.2	Certified	William Via	Public Works Director		07-AUG-23	07-AUG-23	Monthly Category 3 Spill	Memorial Dr/Plum Ct	07/22/2023 12:29	07/22/2023 12:45	07/22/2023 12:29				Intersection of Memorial dr and plum court from manhole running down gutter north from plum ct to meridian	36.85101	-121.3837	Gravity Mainline; Manhole	Intersection of Memorial dr and plum court from manhole running down gutter north from plum ct to meridian		100	Intersection of Memorial dr and plum court from manhole running down gutter north from plum ct to meridian	N						100	Paved Surface; Street/Curb and Gutter (2 3)		Intersection of Memorial dr and plum court from manhole running down gutter north from plum ct to meridian										07/22/2023 12:55	Used duration and flow rate comparison 25gpm	Visual and measurement	Debris-General; Fats, Oil and Grease (FOG)		Gravity Mainline; Manhole		Polyvinyl Chloride (PVC)		40	No impact.  Flow did not reach the DI  Spill was recaptured 100%	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned All Spill to Sanitary Sewer System		Used Vac-Con to vacuum spill an water. Washed down area with water an E-San 64 disinfect	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Used Vac-Con to vacuum spill an water. Washed down area with water an E-San 64 disinfect		07/22/2023 02:05	Grease and debris caused a small overflow to the manhole at the intersection listed above.  The DI downstream was covered with plastic sheeting, socks, and dirt and the flow did not reach the DI.		Will inspect the line more frequently to determine if changes to cleaning and CCTV are needed	08/25/2023 13:34														Used Vac-Con to vacuum spill an water. Washed down area with water an E-San 64 disinfect	Determine is cleaning schedule should be adjusted	To be determined	N/A	N/A	N/A	N/A	N/A	Will inspect the line more frequently to determine if changes to cleaning and CCTV are needed	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	889651	1.3	Certified	Ameal McLaurin	Sewer Supervisor 2		03-AUG-23	03-AUG-23	Monthly Category 3 Spill	Paso Robles & Woodrow Dr.	07/26/2023 09:35	07/26/2023 10:15	07/26/2023 09:00				Sewer overflow plugged by roots caused gravity mainline to plug.	35.63688	-120.6545	Manhole			160	Spill soaked into easement dirt and some sewage went down storm line that was all captured/ returned to sewer system.	Y	Spill soaked into easement dirt and some sewage went down storm line that was all captured/ returned to sewer system.	90				90	Drainage Conveyance System; Unpaved Surface		Unpaved surface/ Drainage Conveyance System	Y	35.63688	-120.6545							07/26/2023 14:00	50' L x 2' W x .5' D x 7.48 x .1875 = 70 gal  -  Easement 290' L x .5' W x .083 D x 7.48 = 90 gal  -  Drainage Conveyance System  160 gal total     	Start time: Called and got information from the complaint caller about the time they first noticed the spill. End time: was noted when the main line blockage was cleared by the responding sewer crew.	Root Intrusion		Gravity Mainline		Vitrified Clay		60	Spill soaked into easement dirt and some sewage went down storm line that was all captured/ returned to sewer system.	N	Cleaned Up (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Hydro flushed gravity main sewer line to unplug root blockage. We washed down easement, flushed storm line, captured all sewage and returned all spill to sewer system. Restored flow to sewer system.	Added Sewer to Preventive Maintenance Program		Hydro flushed gravity main sewer line to unplug root blockage. We washed down easement, flushed storm line, captured all sewage and returned all spill to sewer system. Restored flow to sewer system. Add to Preventative Maintenance Program.		07/26/2023 14:00	Gravity mainline plugged with root intrusion.		investigation has been complete.	07/28/2023 13:30														N/A	Added to High Frequency Preventative Maintenance Program. Work number,1447960	Added to High Frequency Preventative Maintenance Program. Work number,1447960	CIP work order # 1449051	CCTV inspection report found root intrusion to be the cause of the overflow.	CIP work order # 1449051	Added to High Frequency Preventative Maintenance Program. Work number,1447960	Hydro flushed gravity main sewer line to unplug root blockage. We washed down easement, flushed storm line, captured all sewage and returned part of the spill to sewer system. Restored flow to sewer system. Add to Preventative Maintenance Program.	investigation has been complete.	
2	2SSO10216	Active	West County WW District CS	West County Wastewater District	889662	1.3	Certified	Gordon Times	Collection System Operations Department Manager	28-JUL-23	16-AUG-23	16-AUG-23	Category 1 Spill	Carriage Hills Lift Station	07/26/2023 08:24	07/26/2023 08:40	07/26/2023 07:00	07/26/2023 10:11	23-4787		Spill originated from a force main in front of the Carriage Hills LS approximately 150 yards South of the intersection of Carriage Hills Dr. and Conestoga Way in Richmond CA	37.96314	-122.25722	Force Main			7800	The lift station had recently been fortified with berms around it to contain the spill. Most of the spill pooled in front of the station, but some escaped and entered the creek behind it.	N				The discharge point was approximately 40 ft. from the rear of the station.	2500	0	Paved Surface; Surface Water		Most of the spill pooled in front of the station, but a portion of the spill exited the rear of the station and entered the creek.	Y	37.96282	-122.25771	37.96304	-122.25768					07/26/2023 09:05	We used scada data to determine the volume pumped during the estimated time the spill ran. There were 13--1 minute cycles at 600gpm totaling 7800 gallons.	The lift station is isolated from the rest of the neighborhood, but the condition of the asphalt helped us determine the spill wasn't running very long. We estimated that it likely started around an hour before we we're made aware of the spill.	Pipe Structural Problem/Failure - Controls		Force Main		Ductile Iron		37	The spill was mostly contained in front of the lift station, but a small amount seeped into the surrounding soil and into the creek, which has very light flow at the entry point. No animals or wildlife was impacted.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		The spill was contained, and a large amount recovered by vactor trucks and returned to the collection system. A repair was made to the pipe, and once complete, the area was washed down and disinfected.	Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect		After the pipe was repaired, we devised a plan to install a temporary bypass while planning for a permanent pipe replacement. The temporary bypass should be installed by the end of August and the permanent replacement by the end of 2023.	Temporary Bi-Pass--August 2023  Permanent pipe replacement--December 2023	07/26/2023 17:30	The pipe was dug up and repaired. Inspection of the pipe revealed severe corrosion causing the pipe wall to thin and fail.	N			Castro Creek	Stream/Creek			Non	Other (specify below)	NA	NA	0	N	N												
4	4SSO11540	Active	Fillmore Sewage CS	Fillmore City	889664	1.2	Certified	Joe Bellomo	Public Works Director	28-JUL-23	21-OCT-24	21-OCT-24	Category 2 Spill	SR 126	07/27/2023 16:35	07/27/2023 17:00	07/27/2023 16:23	07/27/2023 22:32	23-8418		Bypass pumps located on SR 126 across from Chevy dealership  	34.39506	-118.92644	Manhole			73229	Spill traveled west down SR 126 to construction site.  Entered bore hole and was pumped by groundwater pumps to old Fillmore Wastewater Plant pond 3  	Y	Storm water catch basin. 	18000	0			73229	Drainage Conveyance System; Paved Surface		Spill flowed along curb to construction site on Cst 	N									07/27/2023 19:47	area, and amount collected 	NA	Operator Error (specify below)	contractors maintaining bypass pumps allowed 	Gravity Mainline		Vitrified Clay		50	NA	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Returned Portion of Spill to Sanitary Sewer System	Clean up crews on site at time of bypass failure 	vacuumed up material and returned to manhole 	Other (specify below)	Spoke with contractors about pump watch 	NA	NA	07/27/2023 14:51	NA	N												N													
9	9SSO11541	Active	San Mateo Campground/San Onofre CS	Ca Dept of Parks & Rec Winterhaven	889665	1.4	Certified	Nasys Karasoulas	Park Maintenance Supervisor		28-JUL-23	28-JUL-23	Monthly Category 3 Spill	San Mateo Campground	06/12/2023 08:20	06/12/2023 08:28	06/12/2023 08:00				Due to control panel system issue overflow tank filled up and slowly started seeping from manhole cover of tank.	33.40484	117.5864	Other (specify below)	Wet Well Overflow Tank		200	Spill spend across small portion of paved area around manhole cover in the maintenance yard.	N						200	Paved Surface		Spill spread across small portion of paved area around manhole cover in the maintenance yard.	N									06/12/2023 08:40	Using picture examples of estimated flow rates from manholes was able to estimate spill volume at approximately 5 g.p.m.	Using picture examples of estimated flow rates from manholes was able to estimate spill volume at approximately 5 g.p.m.	Pump Station Failure - Controls		Pump Station - Controls		Other (specify below)	N/A. Not a pipe failure.	30	Minimal Impact. Some material spread across small portion of paved area in private maintenance yard.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Returned Portion of Spill to Sanitary Sewer System		Blocked spill from spreading farther out through various means which included using waddles and sandbags to contain. Absorbent materials to pick up any materials not returned to sewer system  Returned some of spill back to sewer system. Disinfected paved area where spill occurred.	Other (specify below)	Reset Control Panel.	Daily visual inspection of control panel. Repair phone line and reprogram emergency call out system.		06/12/2023 09:34	Control Panel had a malfunction causing floats to not trigger pumps to start. Overnight the wet well then overflow tank filled up due to the pumps being offline. Emergency call out system was offline due to phone line issue. Once this was discovered control panel was reset starting pumps and pumping down the tanks.		No.	07/27/2023 09:30														None.	Repair phone line and reprogram emergency call out system.	Daily visual inspection of control panel.	Yes	Inspected.	N/A	None.	None needed.	No.	
5S	5SSO11015	Active	Nw Regional Waste Disp Fac CS	Lake Cnty	889666	1.1	Certified	Steven Phillips	Utility Systems Compliance Coordinator		31-JUL-23	31-JUL-23	Monthly Category 3 Spill	Foothill Dr - Sherwood Ct.	07/25/2023 14:34	07/25/2023 15:23	07/25/2023 14:15				SSMH at 39.094772, -122.792571 in Lucerne, California. SSMH is located within an easement running along existing property lines between 4207 Foothill Drive and 4194 Sherwood Court.	39.09477	-122.79258	Manhole		None	224	30' L x 2' W x .5' D	N						200	Unpaved Surface		Spill was contained within the sewer existing easement between referenced properties.	Y	39.094716	-122.792605							07/25/2023 17:40	Eyeball method estimated at 300-400 gallons upon arrival. Measured area/volume method calculation = approximately 224 gallons. Based on the amount of effluent that was ponded at the spill site it was estimated that approximately 200 gallons were recovered and the remaining spill volume of 24 gallons soaked into the ground.	Spill start time is estimated at approximately 30 minutes prior to resident calling in to report a spill. Spill end time is when the obstruction the sewer main was cleared at the overflow stopped.	Debris-General; Fats, Oil and Grease (FOG)		Gravity Mainline		Other (specify below)	Pipe material is unknown. Our as-built drawings do not notate the type of material used.	45	Spill was contained within an existing sewer easement. It is estimated that 11% of the spill soaked into the ground and 89% was recovered and returned to the sewer system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Approximately 200 gallons were vacuumed up and returned to the sewer system and approximately 24 gallons soaked into the ground. Lime was spread over the wetted spill area. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		CCTV all gravity mains, up and down stream of the failure location, are being done to determine cause of SSO. Brush clearing will be required to access some of the SSMH's on this leg of the system.		07/25/2023 15:50	Debris and FOG in the gravity sewer main, approximately 276' downstream from the appearance point, was determined to be the failure point location. Once the clog was removed normal flow was restored.		None at this time	07/27/2023 15:51														N/A	Brush clearing will be required to access some of the existing SSMH's and rights of entry are being prepared to gain access to remote SSMH locations.	This portion of our gravity collection system will be placed on a more frequent inspection schedule.	None at this time	Inspections are ongoing at this time.	None at this time 	None at this time	Using new sanitary sewer spill/backup response workbook recently adopted by the Administration.	None at this time	
4	4SSO10436	Active	South Pasadena City CS	South Pasadena City	889684	1.1	Certified	Harold Theodore Gerber	Public Works Director		30-JUL-23	30-JUL-23	Monthly Category 3 Spill	Manhole 176B near 355 Camino Del Cielo	06/28/2023 13:00	06/28/2023 14:00	06/28/2023 13:00				Manhole 176B near 355 Camino Del Cielo	34.10555	-118.16884	Manhole			450	Overflow from Manhole 176B near 355 Camino Del Cielo onto the paved surface. Spill did not reach the storm drain system.	N						345	Paved Surface		Overflow from Manhole 176B near 355 Camino Del Cielo onto the paved surface. Spill did not reach the storm drain system.	Y	34.10555	-118.16884							06/28/2023 20:00	This was a small overflow estimated by staff at no more than 1 gallon per minute (1 gpm) - no wastewater entered the storm drain.  Staff estimated spill volume based on 1 gpm multiplied by the event time period.	Spill start time estimated at notification and end time estimated at event resolution.	Debris from Lateral; Root Intrusion		Manhole		Other (specify below)	Cured In Place Pipe (CIPP) Polymer Liner inside Vitrified Clay Pipe (VCP)	8	Wastewater contained on surface, the majority was contained, remainder evaporated.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned Portion of Spill to Sanitary Sewer System		Staff utilized sand bags to contain the spill, and with the assistance of a contractor hydrojetted to clear the blockage and vacuumed to recover overflow during the event.  Staff attended to upstream manhole to ensure the spill did not occur at an additional location. 	Inspected Sewer Using CCTV to Determine Cause		Staff will video the blockage area to confirm cause was from private lateral root debris, and notify lateral owner to address the issue in order to prevent future obstructions in the City main.		06/28/2023 20:00	It is expected that cause was from private lateral root debris, staff will video the blockage area to confirm.		Additional video of blockage area to determine impact from private laterals.	09/30/2023 23:59														No illicit discharger identified.	Notification to private lateral owners when roots are at risk of causing an obstruction in City main sewer pipeline.	Increase to maintenance schedule would not prevent debris from private lateral.	Sewer was recently repaired and lined upstream and downstream of overflow location in 2015.	Sewer was recently repaired and lined upstream and downstream of overflow location in 2015.	Sewer was recently repaired and lined upstream and downstream of overflow location in 2015.	No modifications implemented at this time.	No modifications implemented at this time.	Additional video of blockage area to determine impact from private laterals.	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	889688	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		22-MAR-24	22-MAR-24	Monthly Category 3 Spill	344 South Canyon View Drive	07/29/2023 12:10	07/29/2023 13:02	07/28/2023 12:30				Latitude: 34.051312 Longitude: -118.482419	34.051312	118.482419	Inside Building or Structure		None	144	It was estimated that approximately 144 gallons of sewage backed out of the sewer as a result of the blockage. The entire back up amount was contained within the property located at 344 South Canyon View Drive and subsequently it was disposed of by the property owner.	N		0				0	Building or Structure		The entire back up amount was contained within the property located at 344 South Canyon View Drive and subsequently it was disposed of by the property owner.										07/28/2023 14:30	The SSO volume was estimated utilizing a standardized template which calculates the volume by using dimensional analysis.	Spill flowrate and volume determination based on flowout pickhole or opening Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening2inches Flowrate per pickole/opening (gpm)3gpm # of pickholes/openings1 Total flowrate (gpm)3gpm Duration of spill (minutes)139minutes Total flow (gallons)400gallons 	Root Intrusion		Gravity Mainline		Vitrified Clay		63	It was estimated that approximately 144 gallons of sewage backed out of the sewer as a result of the blockage. The entire back up amount was contained within the property located at 344 South Canyon View Drive and subsequently it was disposed of by the property owner.	N	Other (specify below)	The flow lead to a diversion structure and subsequently 380 gallons of the backup amount was returned to the sewer system and 20 gallons soaked into the soil.	The entire back up amount was contained within the property located at 344 South Canyon View Drive and subsequently it was disposed of by the property owner.	Adjusted Schedule/Method of Preventive Maintenance		In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.		07/29/2023 13:02	Closed Circuit Television (CCTV) inspection revealed no defects. 		No.	07/05/2023 13:05														Not at this time.	In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	Not at this time.	The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. 	Not at this time.	In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	No.	
8	8SSO10594	Active	Rialto City CS	Rialto City	889690	1.2	Certified	Michael Newton	Project Manager	31-JUL-23	02-AUG-23	02-AUG-23	Category 2 Spill	On Cedar ave north of Durst ave	07/27/2023 15:52	07/27/2023 15:30	07/27/2023 15:00	07/28/2023 11:30	23-4828		City of Rialto contractor was working a trench over the sewer line.  The contractor broker the sewer line in the morning approximately 945am.  Since they were the responsible party for the damage, the contractor began making the repair.  They had set up a 3  pump up stream of the break to pump around the damaged piping.  It appears the discharge hose either came out of the manhole, or the discharge line became disconnected, which resulted in the spilling of the discharge sewage onto the roadway.	34.09546	-117.39649	Gravity Mainline			2000	The discharge of the pump shot sewage in the center of the street on Cedar Ave and flowed to the east side curb continuing to flow south to the storm drain.  The contract called two vacuum truck that were able to recover all estimated 2000 gals from the drain system.  Rialto Water Services assisted in disinfection of the affected area.	Y	City contractor reports there is a catch basin after storm drain, but before storm water basin.  Contractor states they were able to recover 100% of the spill from the catch basin.	2000	0			2000	Drainage Conveyance System		City of Rialto contractor was working a trench over the sewer line.  The contractor broker the sewer line in the morning approximately 945am.  Since they were the responsible party for the damage, the contractor began making the repair.  They had set up a 3  pump up stream of the break to pump around the damaged piping.  It appears the discharge hose either came out of the manhole, or the discharge line became disconnected, which resulted in the spilling of the discharge sewage onto the roadway.  The spill happened during the pump around at about 330pm.	Y	34.09548	-117.3965							07/27/2023 19:15	City inspector states that there is a catch basin within the storm drain system.  The contents of the within the catch basin was recovered with one vacuum pump truck with a capacity of 1500 to 2000 gals.	The city contractor was onsite performing line repair when the spill started.  They estimated the spill lasted 15 minutes.	Debris from Construction	Contractor states when working in the trench, a rock fell onto the pipe breaking it.  During pump around, discharge hose came out of the manhole.	Gravity Mainline		Ductile Iron		20	With contractor onsite, they coned off the traffic from the until the vactor trucks arrived for clean up.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned All Spill to Sanitary Sewer System		Coning off of area.  Spill made it to storm drain then to catch basin.  Contractor hired clean up crew to sanitize and clean area.  100% of spill was recovered from catch basin on Merrill Av. 	Repaired Facilities or Replaced Defect		Spill was caused by city contractor.  Contractor claimed responsibility and made repair to broken pipe.	Contractor hired crew for clean up, sanitized the area, and recovered all of the spill.  Line was repaired approximately at 4:00pm.  Line was back in service about 4:30pm.  Spill happened about 3:00pm due to bypass pump at manhole. 	07/27/2023 19:15	10:00am Contractor on site working in the trench. 1:00pm contractor broke the line 3 to 3:30pm Spill happened sometime between 3:00 and 3:30pm 3:30 Wastewater collection's crew arrived onsite 4:00 Contractor told collections crew and Rialto WWTP PM they claimed responsibility and already had two vactor trucks on route.  At this time, the broken pipe had been repaired. Rialto Collections crew was instructed to observe clean up. 7:30pm Collections crew member verified sanitation and washdown of affected area. 8:00pm Collections crew member was released  	N												N													
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	889691	1.3	Certified	Kent Vian	Asst. Deputy Director	31-JUL-23	03-AUG-23	03-AUG-23	Category 2 Spill	NOT-40200992381 IVY ST. & FELTON ST. JUNIPER CANYON.	07/29/2023 07:12	07/29/2023 07:32	07/29/2023 07:10	07/29/2023 09:33	23-4842		SPILL ORIINATED IN JUNIPER CANYON AREA CROSS STREET IVY ST. & FELTON ST. MAHOLE 269. GPS COORDINATES 32.72863 LATTITUDE:  117.12247 LONGITUDE:	32.72863	-117.12247	Manhole	N/A	N/A	1500	SPILL SOAKED INTO SOIL IN JUNIPER CANYON.	N	N/A	0	0			0	Unpaved Surface	Soaked into Dirt 50 east of manhole. 	Soaked into Dirt 50 east of manhole. 	Y	32.72859	-117.12231							07/29/2023 08:25	Visual	Visual Seen it spilling and when it was relived. 	Vandalism (specify below)	People gained access to our manhole and fill it up with trash causing the flow of water to stop and spill. 	Manhole; Other (specify below)	Vandalism 	Cross-Linked Polyethylene (PEX); Other (specify below)	N/A manhole vandalism	91	Canyon area was affected 50 east of manhole. 	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow	CCTV Main, pickup up solids and Secured manhole frame cover with lock downs. 	At time of arrival crews set up and removed stoppage, tracked final destination, did confined space entry, CCTV mains. 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Secured Manhole covers in canyon	Secured Manhole covers in canyon	None	08/02/2023 11:52	People gained access to our manhole and fill it up with trash causing the flow of water to stop and spill. 	N												N													
2	2SSO18110	Active	Treasure Island Development Authority CS	Treasure Island Development Authority	889700	1.5	Certified	Robert Beck	Treasure Island Director	31-JUL-23	01-AUG-23	01-AUG-23	Category 2 Spill	1116 Hutchins Court	07/29/2023 15:12	07/29/2023 16:00	07/29/2023 13:45	07/29/2023 18:30	23-4851		Spill coming from manhole (asset N-74513) and pooling in parking lot.  Some evidence that spill reached separate storm drain inlet basin (asset N-75039).  Checked main line gravity sewer (10� VCP, asset P-131597) and found blockage from grease (FOG) and roots.  Checked downstream storm drain and found no evidence of sewage so all was contained at basin in parking lot.  All flow was recovered and returned to collection system.  See attached pictures.	37.828194	-122.376805	Manhole			1220	Spill was contained within parking lot near 1116 Hutchins Court, Treasure Island.	Y	Evidence of small flow within separate storm drain basin within parking lot.  All contained within basin, pumped out and returned to system.	2	0			1220	Paved Surface		Spill coming from manhole (asset N-74513) and pooling in parking lot.  Some evidence that spill reached separate storm drain inlet basin (asset N-75039).  Checked main line gravity sewer (10� VCP, asset P-131597) and found blockage from grease (FOG) and roots.  Checked downstream storm drain and found no evidence of sewage so all was contained at basin in parking lot.  All flow was recovered and returned to collection system.  See attached pictures.	Y	37.828194	-122.376805							07/29/2023 17:49	Duration and flow rate used for flow estimation; used SFPUC Overflow Flow Rate Estimating Tool	Observed 5 gpm x 244 minutes = 1220 gallons	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		70	Spill contained within parking lot area, and all collected and returned to collection system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	Cleaned out catch basin (asset N-75039) and checked downstream storm drain system for visible sewer flow (assets P-133218 and P-133217) and none found.  Notified Cal OES and SFDPH.	Contained flow within parking lot, and used vactor truck to recapture flow.  Cleaned out catch basin, cleaned up parking lot.	Other (specify below)	Follow up work order created for CCTV of 10  VCP sewer main (asset P-131597); Maximo Work Order # 8037185.	Further follow up will be planned after results of CCTV are available (see above - work order for CCTV filed)	To be determined, depending on severity of blockage from FOG and roots in main line sewer.	07/29/2023 23:00	Security patrol doing rounds spotted spill coming from manhole in parking lot at ~3:00 pm.  Security guard did not see any water on his prior rounds at approx 12:45 pm.  Based on flow rate and pooling in parking lot (witness stated) estimated start time of 1:45 pm.  Security guard called it in to 311 at 3:12 pm, and 311 relayed to SFPUC sewer ops.  Continued investigation of main line sewer will be determined after results of CCTV already requested are available.	N												N													
4	4SSO10489	Active	Simi Valley CS	Simi Valley City	889701	1.2	Certified	Al Sexton	Deputy Director - Sanitation Services		01-AUG-23	01-AUG-23	Monthly Category 3 Spill	1120 Vallejo Ave.	07/05/2023 09:40	07/05/2023 09:50	07/05/2023 09:40				Manhole 172 on Vallejo Avenue before Fitzgerald Road.	34.25745	-118.75839	Gravity Mainline; Manhole			270	Contained and cleaned within the street, curb and gutter.	N						75	Street/Curb and Gutter (2 3)		SSO from manhole cover pick hole contained on the street and within the curb and cutter. 										07/05/2023 10:00	Table C - Estimated SSO Flow Chart	Flow exiting approximately 1 inch from manhole pick hole.	Debris from Lateral; Debris-General; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG); Root Intrusion		Manhole		Vitrified Clay		30	None	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		Cleaned Up with washdown and recovery of water.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Increase inspection and cleaning of this area of the collection system from annually to twice per year.		07/05/2023 10:50	Heavy rags, grease and some roots with I&I at downstream manhole.		None	07/05/2023 10:00														None	None identified.	Yes. From annually to twice per year.	None required.	Video inspection performed.  No damage observed.	None	None	None needed.	None	
2	2SSO10110	Active	Los Altos City CS	Los Altos City	889709	1.3	Certified	Aida Fairman	Public Works Director		05-AUG-23	05-AUG-23	Monthly Category 3 Spill	1192 St. Charles Ct.	07/15/2023 10:23	07/15/2023 10:56	07/15/2023 09:59				Spill was out of manhole L5S-608 which is located in the street in front of the property at 1196 St. Charles Ct. 	37.34265	-122.07991	Manhole	Manhole L5S-608.	None	142	Spill was out of the manhole in front of 1196 St. Charles Ct. (L5S-608).  Spill ran down the gutter to drain inlet L5F-609 which is in front of 1181 St. Charles Ct.  Spill was slowed by vegetation growing into the gutter in front of 1176 St. Charles Ct. and around the drain inlet. 	Y	Storm drain inlet in front of 1181 St. Charles Ct. (L5F-609).	3				142	Drainage Conveyance System; Street/Curb and Gutter (2 3)	Storm drain inlet L5F-609, street, and gutter.	Storm drain inlet L5F-609, street, and gutter.	Y	37.34265	-122.07991	37.34306	-122.07956	37.34331	-122.07912			07/15/2023 11:10	Spill area measured.  See attachment for calculations.   	We estimated that the manhole was overflowing at 2 gpm.  Crews cleared the blockage at 11:10am and our spill calculation worksheet told us the overflow was 142 gal.  So 142 gal. divided by 2 gpm gives us 71 minutes of overflow.  So 71 min. subtracted from the 11:10am clearing of the blockage makes the start time 9:59am.	Fats, Oil and Grease (FOG)	Grease	Gravity Mainline	Between manholes L5S-608 and L5S-602.	Vitrified Clay	VCP	70	Spill contacted asphalt roadway, gutter, and drain inlet L5F-609.  Impacted area was washed down with water and water was vacuumed and removed. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System	Area washed down and vacuumed.	After crews restored flow to the sewer they then washed down drain inlet with water vacuuming all water.  The roadway and gutter were then washed down and the water vacuumed as well.	Added Sewer to Preventive Maintenance Program; Other (specify below)	Segment will be televised.	Segment that had the blockage has been added to our preventive maintenance program.  Line will also be televised.		07/15/2023 12:00	Investigation ongoing.  Segment to be televised.		Segment to be televised.	08/31/2023 09:00														None.	Segment added to our preventive maintenance program.	Segment added to our preventive maintenance program.	None at this time.	Segment to be televised.	None at this time.	Segment added to our preventive maintenance program.  See attached list.	Spill response activities modifications would be to better contain spill prior to clearing the blockage.	Segment to be televised.	
8	8SSO10590	Active	Newport Beach City CS	Newport Beach City	889711	1.3	Certified	Michael Lynch	Wastewater Supervisor	01-AUG-23	17-AUG-23	17-AUG-23	Category 1 Spill	Aloha Drive @ Bayside Drive	07/30/2023 12:24	07/30/2023 12:45	07/29/2023 18:00	07/30/2023 14:48	23-4862		Pump station force main discharge line was hit by a boat passing under the bridge. Broken discharge was isolated. Further investigation provided information that the incident may have happened on 7-29-23, a neighbor heard a loud bang while entertaining on her patio around 6:00 pm on 7-29-23. If that is the time line the total would have been 526 gals with an additional 3 pump cycles on that pump and discharge line.	33.61451	-117.90094	Force Main; Pump Station		None	526	Spill went directly into the channel no visible evidence on arrival. See attachment	N		0	0	Force main under bridge.	526	0	Surface Water		Spill went to the channel under the bridge on Aloha Dr @ Bayside Dr. The area was posted for 500' in each direction.	Y	33.61444	-117.90091							07/30/2023 13:25	The initial calculation was for one pump cycle, wet well is a 4' diameter manhole, 0.748 x 4'x4'x1.4' depth= 131.28 gals. Further investigation revealed that the line may have hit, neighbor heard a loud bang between 5:30 and 6:00 pm on 5-29-23. An additional 3 cycles on the broken discharge line brought the total to 524 Gals.	Pump cycles for the pump using SCADA system multiplied by wet well volume. There was no recovery as it discharged to the Bay directly.	Damage by Others Not Related to Collection System Construction/Maintenance	It appeared a boat scraped the bottom of the bridge and broke 1 of the discharge lines crossing the channel.	Force Main		Polyvinyl Chloride (PVC)		20	Channel was posted for swimming and surfing for 500' in each direction.	N	Other (specify below); Other Enforcement Agency Notified	Repaired broken line on Monday 8-1-23.	Duty personnel shut off the pump that used the damaged force main.	Repaired Facilities or Replaced Defect		NA	NA	08/01/2023 12:00	There was a scrape mark on the bottom of the bridge aligned with the broken discharge line. Neighbor 2 houses away while entertaining on her patio heard a loud bang, but no description of a vessel.	N			Newport Bay	Ocean			None observed.	Public Closure; Temporary Restricted Use		OC Water Quality Enviormental Health	6	N	N												
5S	5SSO10967	Active	Hidden Valley Lake CS	Hidden Valley Lake CSD	889714	1.1	Certified	Hannah Davidson	Water Resources Specialist		08-AUG-23	08-AUG-23	Monthly Category 3 Spill	19083 North Shore Dr	07/31/2023 22:20	07/31/2023 22:30	07/31/2023 22:20				The spill originated from a sewer manhole, although multiple nearby homes experienced sewer backups as well. All the spills were contained and each affected home was inspected to ensure that discharge did not reach a drainage conveyance system or a body of water.	38.80962	-122.55864	Manhole			100	Sewage exited the manhole onto the street and onto part of the customer's driveway.	N						100	Other (specify below); Paved Surface	There were backups (in restrooms) in nearby residences.	The spill reached the street and a portion of a customer's driveway.	Y	38.8096	-122.55865							07/31/2023 22:45	Estimation is based on visual observation.	Estimation was based on the velocity of which sewage was exiting the manhole.	Debris-General; Debris-Rags; Fats, Oil and Grease (FOG); Other (specify below)	Rags and other debris were caught on a temporary flow monitor that was located in the trough.	Gravity Mainline; Manhole		Polyvinyl Chloride (PVC)		59	Sewage was present on the street by the manhole for a short amount of time. The road was blocked off for public safety.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		The manhole was pumped down and the debris were removed and flow was restored and pumped through to the lift station. Heavy duty absorbent rags were used on the street to contain the spill.	Other (specify below)	The temporary flow monitor was removed.	The spill was cleaned and the street was disinfected. The temporary flow monitor was removed and I/I monitoring methods will be reevaluated.		07/31/2023 23:30	Since there was only one temporary flow monitor placed in the entire collection system, the Operator correctly assumed that debris was caught on the device. A local sewage pumping service company, which was contacted by a resident to address a backup in their home, pumped flow from the manhole down and removed the blockage and flow was restored. The following morning the temporary flow monitor was removed to prevent debris becoming caught on it again.		None as the temporary flow monitor was removed.	07/31/2023 23:30														NA	I/I monitoring methods will be reevaluated.	No changes will be made since the temporary flow monitor was removed.	No changes will be made since the temporary flow monitor was removed.	The temporary flow monitor, which was damaged in the removal process, was removed and will not be used again; replacement is being considered.	No changes will be made since the temporary flow monitor was removed.	NA	No changes will be made since the temporary flow monitor was removed.	None as the temporary flow monitor was removed.	
2	2SSO10096	Active	Berkeley City Public Works CS	Berkeley City of Public Works	889718	1.2	Certified	Jesus F Sandoval	Public Works Senior Supervisor		30-AUG-23	30-AUG-23	Monthly Category 3 Spill	1510 Oxford St	07/31/2023 09:00	07/31/2023 15:10	07/31/2023 08:00				Clean out next to curb/gutter	37.87992	-122.26726	Lateral Clean Out (Public)			50	Spill was on the sidewalk and gutter	N						25	Street/Curb and Gutter (2 3)		Sidewalk, Curb, and gutter3:		37.87992	-122.26726							07/31/2023 16:40	Used calculation for volume and the San Diego SSO calculation chart	San Diego SSO calculation chart, Calculation for Volume	Debris-General		Lower Lateral		Polyvinyl Chloride (PVC)		20	A private home was affected	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Contained spill with sandbag, returned as much of the spill as possible back into the clean out 	Inspected Sewer Using CCTV to Determine Cause		CCTV inspection to determine cause and to prevent future spill		07/31/2023 15:45	We CCTV Lower lateral and founded a joint offset at 20.3 ft from clean-out  and placed on a dig & repair schedule.		N/A	08/02/2023 13:00														Not known	CCTV inspection and regular maintenance	CCTV inspection and more frequency of cleaning 	will schedule a spot repair to repair the joint offset at 20.3 ft from clean-out.	Inspection CCTV and place on a schedule for repair.	Not determined	CCTV report and placed on a dig & Repair list	SSO Report 	N/A	
4	4SSO10425	Active	San Dimas City CS	San Dimas City	889731	1.3	Certified	Alexander Villarama	Senior Civil Engineer		09-AUG-23	09-AUG-23	Monthly Category 3 Spill	2387 - 2400 South San Dimas Avenue, San Dimas (San Dimas Avenue)	07/18/2023 10:38	07/16/2023 10:49	07/16/2023 12:03				Spill originated from San Dimas Avenue Pump Station (force main) CSMD Map Sheet No. 2387 MMS No. 8318321	34.06632	117.81611	Force Main			500	Sewage was discharged from a broken force main at San Dimas Avenue Pump Station, flowing into the street and gutter, eventually reaching the storm drain and flowing into a dry canyon. 	Y	The storm drain catch basins adjacent to the San Dimas Avenue sewer pump station directs its flow towards Calle Andrea, and then it proceeds eastward to an outfall dissipation structure, which in turn connects to a natural drainage channel (dry canyon).	0				0	Unpaved Surface		The storm drain catch basins adjacent to the San Dimas Avenue sewer pump station directs its flow towards Calle Andrea, and then it proceeds eastward to an outfall dissipation structure, which in turn connects to a natural drainage channel.										07/16/2023 12:20	Visual and eyeball method	SCADA Report	Pipe Structural Problem/Failure - Controls		Force Main		Ductile Iron		36	N/A	N	Other (specify below); Other Enforcement Agency Notified	Shut down pump station, drained force main back into station wet well, dirt	The pump station was shut down and the force main was drained back into the station's wet well. Dirt berms were constructed on the street to reduce runoff and direct it toward the catch basin. The incoming sewage was stored and transported off-site until repair was complete.	Repaired Facilities or Replaced Defect		N/A		07/16/2023 20:40	Broken force main		N/A	07/20/2023 01:11														N/A	N/A	N/A	N/A	Repaired broken force main	N/A	N/A	N/A	N/A	
9	9SSO10655	Active	City of National City CS	National City	889732	1.2	Certified	Dennis Davies	Principlal Engineer	03-AUG-23	03-AUG-23	03-AUG-23	Category 2 Spill	28th and C Ave.	07/31/2023 09:30	07/31/2023 10:15	07/31/2023 07:30	08/01/2023 16:30	23-4916		Mainline back-up believed to be caused by construction debris. Main appearance point (appearance point 1) is a cleanup from dwelling under construction. An additional appearance point (Appearance point 2) is from manhole No 173 leakage around lid.  Flow was estimated at 50 gal. per minute for 195 minutes (3 hrs and 15 Minutes). Estimated 80% was recovered.  Blockage was between MH 171 and 172.  NC Crews access Manhole 171 and rodded toward MH 173.  Blockage was cleared at 10:45.  No wastewater reached the storm drain conveyance system in the area.  Coordinates at the spill location are 32.65919, -117.09733.	32.65944	-117.0971	Gravity Mainline; Lateral Clean Out (Private)			9750	Photographs are attached.	N		0				7800	Unpaved Surface		Mainline back-up believed to be caused by construction debris. Main appearance point (appearance point 1) is a cleanup from dwelling under construction. An additional appearance point (Appearance point 2) is from manhole No 173 leakage around lid.  Flow was estimated at 50 gal. per minute for 195 minutes (3 hrs and 15 Minutes). Estimated 80% was recovered.  Blockage was between MH 171 and 172.  NC Crews access Manhole 171 and rodded toward MH 173.  Blockage was cleared at 10:45.  No wastewater reached the storm drain conveyance system in the area.  Coordinates at the spill location are 32.65919, -117.09733.	Y	32.65919	-117.09733							07/31/2023 10:45	Based on the Description from the contractor on site of the flow coming out of the 3  cleanout an estimate of 50 gallons per minute was used as the basis of the calculation.  Flow was first observed at 7:30 and Stopage was cleared at 10:45. 195 minutes. The majority of flow and mud was collected with the City's Vactor. It was estimated that it was 80%.	Based on witnesses on Site and NC Wastewater crew information. 	Debris from Construction		Gravity Mainline		Vitrified Clay		60	Little to no impact.  Site is an open field that is currently being used as a laydown area by Ortiz Construction. They are under contract with the City to construct a new sewer line that will replace the 60 year old pipe. Work is scheduled to be completed in October.	N	Cleaned Up (specify below); Returned Portion of Spill to Sanitary Sewer System	The City's Vactor sucked sewage and mud in the area.  Water was returned to Sewer.	Flow was contained to the open field.  Crews immediately began containing and factoring the spill and additional crews rodded the area of the blockage.	Added Sewer to Preventive Maintenance Program	Line is to be replaced in the next 3 months.	Line is to be replaced in the next 3 months.	Contract has commenced. Line is to be replaced in the next 3 months.	07/31/2023 13:00	Four housed are currently under construction in the area. No Material was received but a sewer cleanout cap was observed in the backed up Manhole.	N												N													
5S	5SSO11433	Active	City of Stockton MUD CS	Stockton City MUD	889735	1.6	Certified	Dagmara Saini	Program Manager III	01-AUG-23	23-AUG-23	23-AUG-23	Category 2 Spill	2244 West Lane and 1412 El Pinal Drive 	08/01/2023 14:15	08/01/2023 15:00	08/01/2023 13:45	08/01/2023 19:32	23-4921		The spill originated on private commercial property.  The spill event resulted in two appearance points, coordinates provided below.  The appearance point closest to the failure point, which was the City's mainline, occurred on concrete on the private property driveway.  The second appearance point occurred on El Pinal on the North side of 2244 West Lane from the M/H on asphalt; Pictures attached.	37.97731	-121.27822	Lateral Clean Out (Private); Manhole	Photos of the 2nd appearance point weren't attainable at the time of the spill due to safety concerns with traffic at that time of day.  	The spill originated on private commercial property.  The spill event resulted in two appearance points, coordinates provided below.  The appearance point closest to the failure point, which was the City's mainline, occurred on concrete on the private property driveway. The second appearance point occurred on El Pinal on the North side of 2244 West Lane from the M/H on asphalt; Pictures attached.	3750	The first appearance point occurred within the commercial property at 1412 El Pinal Dr, the 2nd appearance point was on the North side of 2244 West Lane from a M/H on El Pinal on asphalt.  	Y	The over flowing Clean out spilled into a private storm drain that is connected to the city's storm system outside the premises. The overflowing city man hole spilled into a city maintained storm drain at the corner of West Lane and El Pinal.   Both flow into a city maintained Storm Pump Station.	3750	0			3750	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)	Spill destination was at (2) storm man holes.	The spill was captured at 2 locations.  Storm M/H in front of 1531 El Pinal Dr and a Storm M/H at the intersection of Harding way and Stanford ave.  	Y	37.9819	-121.27893	37.9699	-121.28037					08/01/2023 17:15	The volume was calculated by observing the overflowing man hole and comparing it to the Man hole overflow chart and calculating the flow by the time of the continued spill.  	The spill start time was assessed from the time of the first report from the business located at 1412 El Pinal.  The end time was based on the time that the hydrovac crew were able to restore flow to the city sanitary mainline. 	Other (specify below)	Vandalism. Homeless dumping trash and debris into manhole.	Gravity Mainline; Manhole	System failure location was at manhole.	Concrete	The failure was a block inside the man hole and not actually inside of the pipe.  	87	There was minimal impact.  Crews were able to capture the spill and flush the affected storm lines before anything reached a pump station.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System	Response crews identified storm manhole impacted with weeds, mattress and debris from homeless encampment. Crews covered CB grates and continued with investigation and cleanup.	The storm lines were dry and free of any additional flow that would have carried the spill downstream to any pump stations.  We had 2 hydrovac crews set up the M/H's downstream of each appearance point and we began flushing the spill to the hydrovacs.  We repeated this process multiple times in order to thoroughly flush the city storm lines.  	Other (specify below)	Remove all debris from manhole.	We've created a workorder to have the M/H lid over the sanitary sewer at 1537 El Pinal removed and replaced with a locking lid.  	The work will be completed within 6 months. 	08/01/2023 20:30	Service truck operators traced out the plugged mainline until they were able to find a location where the hydrovac crew could unplug the clogged mainline.  The first attempt restored partial flow and stopped any spilling.  On second attempt the crews had to move to the manhole where the source of the blockage was and begin vacuuming out the man hole.  Myself along with my crew discovered clothing, blankets, plastic buckets, jugs and more debris had been thrown into the m/h from the people that we assume were living in a homeless camp near by.  	N	No reason for ongoing investigation.											N												No reason for ongoing investigation.	
2	2SSO10142	Active	Town Of Hillsborough CS	Town Of Hillsborough	889748	1.3	Certified	Rick-Gabriel Pina	Superintendent 		02-APR-24	02-APR-24	Monthly Category 3 Spill	1 Mountain Wood LN	07/25/2023 15:45	07/25/2023 16:15	07/25/2023 15:30				Spilled from manhole to landscaping area.	37.54667	-122.3307	Manhole		n/a	390	Spilled from manhole and contained in landscaping area 	N						390	Unpaved Surface		Spilled onto landscape area										07/25/2023 16:36	Measured Volume Method, used hand pump in contained area to return to spill to manhole	from time call came in and landscaper time he saw the spill	Root Intrusion		Gravity Mainline		Vitrified Clay		22	Spilled onto landscape	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Spilled onto landscape around manhole use hand pump to return spill to system through manhole 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Place Smart Cover on manhole lid	Place Smart Cover on manhole lid to notify us before it spills, Place segment on CIP list for repair		07/25/2023 16:36	CCTV line segment to verify cause of spill, found roots around where jet nozzle stopping when restoring flow.		no	07/26/2023 10:30														no	Installing Smart Cover on lid	Installing Smart Cover on lid to alert us before spill	On Capital improvements list	CCTV after spill 	on the CIP list	yes, on scheduled to install smart cover.	will be monitoring flow level through smart cover	no	
2	2SSO10115	Active	South San Francisco City CS	South San Francisco City	889762	1.5	Certified	Brian Schumacker	Plant Superintendent	03-AUG-23	14-AUG-23	14-AUG-23	Category 2 Spill	264 S. Airport Blvd	07/31/2023 13:01	07/31/2023 13:10	07/31/2023 12:59	08/03/2023 12:30	23-4960		The city contractor performing auger boring damaged the force main. The damage occurred in front of 264 S. Airport Blvd in the center median of the road.	37.6473	-122.40588	Force Main		The city contractor contacted the force main while auger boring for signage foundation installation. 	23608	See attached	Y	The spill entered a storm drain system that traveled to a storm pump station. City collections staff has the station turned off during the non-rainy season. The spill was contained within the storm system and pump station wet well.	23608	0			23608	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		The spill entered a storm drain system that traveled to a storm pump station. The station is turned off during the non rainy season. The spill was contained within the storm system and well for the station.	Y	37.6473	-122.40588							07/31/2023 22:12	Spill volume was based on Supervisory Control and Data Acquisition (SCADA) data. See attached Excel Sheet for volume generated from SCADA to generate gallons spilled. 	Spill and start times were noted as exact bases on personnel recordings.  	Damage by Others Not Related to Collection System Construction/Maintenance		Force Main		Other (specify below)	Reinforce Concrete Pipe (RCP)	60	See attached Summary Technical Report.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned All Spill to Sanitary Sewer System	See attached Summary Technical Report.	See attached Summary Technical Report.	Other (specify below)	City Public Works Department Engineering Division improves communication with contractors performing drilling, and boring around marked utilities. 	See attached Summary Technical Report and SSMP Workbook.	See attached Summary Technical Report.	08/01/2023 00:43	See attached Summary Technical Report.	N												Y													
5S	5SSO10935	Active	Dry Creek CS	Roseville City	889764	1.2	Certified	Dan Pruden	Superintendent		09-AUG-23	09-AUG-23	Monthly Category 3 Spill	Elm St & Switchman	07/19/2023 13:23	07/19/2023 13:39	07/19/2023 13:08				SMH C03-184 at the intersection of Elm St and Switchman Dr *See Appearance Point.jpg	38.74995	-121.30724	Manhole			240	*See Boundary.jpg and Boundary 2.jpg	Y	Storm Drain System *See DI.jpg and DI 2.jpg	195				235	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Intersection of Elm St and Switchman Dr	Y	38.74995	-121.30724	38.74995	-121.3072	38.75	-121.30719			07/19/2023 14:12	Measured Volume	Per City of Roseville SERP	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		43	None	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		*See Spill Report.pdf	Added Sewer to Preventive Maintenance Program		Added to our  Hot Spots  PM		07/19/2023 15:35	CCTV'ed main and found evidence or previous FOG build up.		None	07/19/2023 09:25														N/A	*See Analysis.pdf	This main is normally cleaned once every six months, adding it to our  Hot Spots  PM will increase that to twice per six months	N/A	CCTV'ed main	N/A	*See Analysis.pdf	None	None	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	889773	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2		04-AUG-23	04-AUG-23	Monthly Category 3 Spill	6715 Chabot Road, Oakland Ca	07/28/2023 12:37	07/28/2023 13:20	07/26/2023 18:00				Floor drain inside building basement.	37.85099	-122.24277	Inside Building or Structure	Floor drain inside building basement.		75	Basement with 10'L x 10' W x Average .1' Depth x 7.48-Gal = 75 Gallons	N						75	Building or Structure	Basement with 10'L x 10' W x Average .1' Depth x 7.48-Gal = 75 Gallons	Basement with 10'L x 10' W x Average .1' Depth x 7.48-Gal = 75 Gallons										07/28/2023 17:00	Calculated volumes: Basement with 10'L x 10' W x Average .1' Depth x 7.48-Gal = 75 Gallons	Start time was based with the information from property owner.  Ending time was based when responding sewer crew opened and cleared the line of paper wipes and debris.	Debris-wipes/Non-disposables; Other (specify below)	Found and removed a 6  auger, not from our department. Unknown origin.	Gravity Mainline		Vitrified Clay		99	Building basement flooded. The sewage flowed back into the Sewer System through the floor drain.   Property owner was provided with a claim packet for Restoration Company to clean and disinfect basement.	N	Contained All or Portion of Spill; Other (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	Building basement flooded. Property owner was provided with a claim packet for Restoration Company to clean and disinfect basement.	The sewage flowed back into the Sewer System through the floor drain. Property owner was provided with a claim packet for Restoration Company to clean and disinfect basement.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Removed the 6  Steel auger from the gravity Mainline. Added mainline to High Frequency 12 Month Maintenance Routine	Removed the 6  Steel auger from the gravity Mainline. Added mainline to High Frequency 12 Month Maintenance Routine		08/01/2023 09:30	Overflow was likely cause by debris becoming caught on 6 auger which created a damning effect inside the gravity mainline.  		N/A	08/01/2023 09:30														N/A	Removed the 6  Steel auger from the gravity Mainline. Added mainline to High Frequency 12 Month Maintenance Routine	Added mainline to High Frequency 12 Month Maintenance Routine	N/A	Removed the 6  Steel auger from the gravity Mainline. CCTV inspection found the mainline in good condition.	N/A	High Frequency 12 Month Maintenance Routine Work Order # 1449004	High Frequency 12 Month Maintenance Routine Work Order # 1449004	N/A	
4	4SSO10431	Active	Santa Monica City CS	Santa Monica City	889781	1.5	Certified	Ralph Valencia	Water/Wastewater Administrator		17-AUG-23	17-AUG-23	Monthly Category 3 Spill	3121 Colorado Avenue	08/03/2023 18:02	08/03/2023 16:48	08/03/2023 19:04				Discharge was emanating from a manhole in the alley behind 3121 Colorado Avenue. 	34.03531	-118.46592	Manhole			180	The discharge flowed to the public right-of-way. The flow continued along the gutter and ponded in front of 3121 Colorado Avenue. None of the spill reached a storm drain. 	N		0				180	Street/Curb and Gutter (2 3)		The spill pooled in front of 3121 Colorado Avenue. 	Y	34.03531	-118.46592							08/03/2023 18:04	Calculation was made by observing the discharge from the manhole pickhole and comparing to the SSCSC Manhole Overflow Gauge. Another estimation will be done using actual anticipated flow in this specific line. 	Another estimation will be done using actual anticipated flow in this specific line.	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		40	The spill impacted a portion of the right-of-way at Berkeley and Colorado Avenue but was limited to the gutter. Pedestrians were directed around the spill area. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Impacted area was disinfected. Any of the spill and water used to cleanup was immediately vacuumed up and returned to the sanitary sewer. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Possible enforcement for FOG discharge from upstream. 	Investigation of the line is occurring. CCTV was done and found root intrusion throughout the line. More frequent service on the line will be implemented. 		08/07/2023 13:07	Roots and FOG were initially found in the line after clearing the blockage. Upon CCTV review, it was found that heavy root intrusion from two abandoned sewer laterals connected to the main line were creating a persisted blockage.  		CSM will continue to monitor this line more frequently. 	08/16/2023 13:10														Possible. Investigation of possible upstream FSEs. No viable upstream FSEs were found connected to the line. It could be that residents are dumping more food waste. 	More frequent service of this line will be occurring. 	This line will be maintained at least three times per year. 	No plans for rehab of this line. 	Repairs will be made regarding two abandoned laterals that are connected to the main line. One lateral will be plugged and another will be totally removed. 	No capital improvements were planned here. 	Our CMMS has documentation regarding the modification of service frequency of the impacted line. 	No spill response activities were modified.  	CSM will continue to monitor this line more frequently. 	
4	4SSO10429	Active	Santa Clarita City CS	City of Santa Clarita 	889785	1.3	Certified	Robert Swartz	Sr. CE	04-AUG-23	25-AUG-23	25-AUG-23	Category 1 Spill	1374-0015 (20202 Ermine Street, Santa Clarita)	08/02/2023 09:59	08/02/2023 11:40	08/02/2023 09:30	08/02/2023 12:05	23-4928		Spill originated at Manhole No. 15 CSMD Map Sheet No. 1374 MMS No. 8330884	34.43593	118.48838	Manhole			14500	Sewage from a manhole 15 spilled into a storm drain at 20152 Ermine Street. 	Y	Sewage from a manhole 15 spilled into a catch basin inlet to PD 0673 storm drain at 20152 Ermine Street, which outlet drains to the Santa Clara River. 	0	14500	Santa Clara River	14500	0	Drainage Conveyance System that discharges to surface water		Sewage overflowed from manhole 15 into the storm drain at 20152 Ermine Street, flowing into Santa Clara River. 	Y	34.43574	118.48831							08/02/2023 11:55	Tributary connections method by office engineering staff. 	Tributary connections method by office engineering staff. 	Root Intrusion		Gravity Mainline		Vitrified Clay		38	No visual impact, road surface washed, no solids remained.  Surface allowed to dry under sunlight	N	Other Enforcement Agency Notified; Restored Flow		Hydro jet equipment was used to clear the mainline root blockage, and all necessary agencies have been notified of the incident.  	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below)	Will also inspect sewer using CCTV to determine if further actions are needed. 	changed sewer from a 90 day to a 60-day rodder preventive maintenance program. Will also inspect sewer using CCTV to determine if further actions are needed.  	60-day rodder periodic. 	08/02/2023 13:30	Will also inspect sewer using CCTV to determine if further actions are needed. 	Y	Will also inspect sewer using CCTV to determine if further actions are needed. 	10/02/2023 15:08	Santa Clara River	River			No impacts.	Other (specify below)	No impacts.	N/A	0	N	N											Will also inspect sewer using CCTV to determine if further actions are needed. 	
2	2SSO10142	Active	Town Of Hillsborough CS	Town Of Hillsborough	889800	1.1	Certified	Rick-Gabriel Pina	Superintendent 		02-APR-24	02-APR-24	Monthly Category 3 Spill	951 Baileyana RD	08/02/2023 11:51	08/02/2023 12:00	08/02/2023 11:36				Spilled out Clean out/ Lamp post.	37.57655	-122.3768	Other (specify below)	Lamp post		294	Spill out of Lamp post onto curb ran down to first Catch Basin but never made it to second catch basin.	Y	Curb to first Catch basin went into pipe toward second catch basin but never made it.	294				294	Drainage Conveyance System; Street/Curb and Gutter (2 3)		Spill onto curb to first catch basin	Y	37.57652	-122.37679							08/02/2023 12:11	Measured Volume Method (rectangle)	Caller advised that noticed spill 11:36am and that was not spilling before that time.	Root Intrusion		Gravity Mainline; Other (specify below)	Lamp Post	Vitrified Clay		93	Spilled due to Roots in Main, Spilled onto curb and went in first catch basin but never made it to second catch basin where we set-up vacuum to recover spill to drain back into system	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		arrived on site set-up vacuum at second catch basin, jet truck set-up to restore flow at downstream manhole, cleaned up then CCTV to check reason of spill.	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		all of the street of Baileyana will be placed on our Hotspot list.		08/02/2023 16:00	Roots at joints in multiple locations		CCTV 8/2/2023	08/02/2023 16:00														yes	Placed on Hotspot list	every three months	Will be placed on our CIP list for rehab.	CCTV and found roots in multiple joints	It will be placed on the CIP list.	yes	On hotspot list	CCTV 8/2/2023	
4	4SSO10439	Active	Torrance City CS	Torrance City	889803	1.5	Certified	Chris Kuebert	Sanitation Services Manager	07-AUG-23	07-AUG-23	07-AUG-23	Category 2 Spill	Susana Ave. and Rockview Ave.	08/04/2023 09:30	08/04/2023 09:55	08/04/2023 09:20	08/04/2023 10:45	23-4979		Intersection Susana Ave. and Rockview St. 33.821915 -118.373484	33.821915	-118.373484	Manhole			2000	Spill final destination point was Susana sump.	N		400				400	Groundwater Infiltration Basin or Facility		SSO and spill reached a storm water sump	Y	33.821915	-118.373484							08/04/2023 10:10	BMP visual	manhole pickhole chart for estimate of spill volume	Root Intrusion		Gravity Mainline		Vitrified Clay		50	sso flowed onto street , crew restored flow and wash down cleaned up spill	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow		Restored flow, wash down street and vactored up, returned to sewer	Inspected Sewer Using CCTV to Determine Cause		CCTV , base corrective action on findings	ASAP	08/07/2023 14:19	CCTV and add to frequent cleaning list	Y	will CCTV to further our investigation	08/10/2023 14:24										Y												will CCTV to further our investigation	
4	4SSO11540	Active	Fillmore Sewage CS	Fillmore City	889809	1.1	Certified	Joe Bellomo	Public Works Director		18-OCT-24	18-OCT-24	Monthly Category 3 Spill	SR 126	08/05/2023 13:27	08/05/2023 13:36	08/05/2023 13:15				SR 126 at bypass pump site 	34.3952	-118.92606	Manhole			250	Spill travled west on SR 126 to bore hole located on C st 	N						250	Paved Surface; Street/Curb and Gutter (2 3)		Spill left manhole at bypass pumps. traveled down curb along SR 126 to bore hole on C st 										08/05/2023 13:32	Estimated by photos, and amount observed after spill stopped	Best estimate from duration of spill 	Operator Error (specify below)	Contractor hired to oversee the bypass pump watch 	Other (specify below)	Bypass pumps 	Vitrified Clay		30	None expected 	N	Cleaned Up (specify below); Returned All Spill to Sanitary Sewer System		Patriot Environmental called in for spill response  	Other (specify below)	Discuss spill response with contractors 	NA			NA		NA	08/07/2023 16:49														NA	NA		NA	NA	NA		NA	NA	
5S	5SSO10935	Active	Dry Creek CS	Roseville City	889823	1.3	Certified	Dan Pruden	Superintendent	09-AUG-23	21-AUG-23	21-AUG-23	Category 2 Spill	1501 Secret Ravine Ave.	08/08/2023 08:13	08/08/2023 08:24	08/08/2023 06:47		-		38.76544 / -121.24343	38.76544	-121.24343	Manhole			14473	Photos of the area of spilled water and the path of the spilled water in the SD system.	Y	4 , 6  24  Storm Darin Pipe, All Pipe was cleaned and spilled water recovered. 	838	0			7500	Drainage Conveyance System; Paved Surface; Unpaved Surface		Spilled water pooled in a large landscape area then flowed into the storm conveyance system. Flowed 1238 feet through the storm system and came out in an open space. All spilled water in the open space and in the conveyance system were recovered. The majority of the spilled water stayed in the landscape area. Start coordinates Lat=38.76543N,   Long=121.24340W, Ending coordinates after flowing through storm drain system,Lat=38.76422N Long=121.24616W	Y	38.76543	-121.24341	38.76422	-121.24616					08/08/2023 09:32	We used SCADA to find the run times of each pump between 0647 and 0932. Pump one ran for 35 minutes and pump two ran for 30 minutes. 65 x 222 = 14430 gallons from the lift station. We then calculated the volume that would have been added from the gravity mains in the apartment complex That was 1878 gallons.  Total pumped and gravity flow = 16,308 The main from the lift station to the man hole that spilled is 990 feet and is a 6�pipe. The volume in that main that would not have flowed out is 1454 gallons.The volume of the spill appearance point manhole is 329 gallons based on a 48� diameter barrel and being 3.5 feet deep. Because this manhole is lower than the next upstream manhole on the gravity line we estimated that 20 feet of that main would have held water as well. This is an 8 inch main and its volume would be 52 gallons.  Total volume that remained in the collection system = 1835 gallons Therefore we estimated the spill volume to be 14,473 gallons (16,308-1835= 14,473)    	The estimated start time is 0647. This was arrived at using our policy of subtracting fifteen minutes from when we receive a call or an eyewitness reports what they know/saw. 	Root Intrusion		Manhole		Concrete; Ductile Iron; Vitrified Clay		20	The spilled water filled in a landscape area of 5200 square feet. Once it reached an elevation where it could get into the storm drain system it did. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Our construction crew responded with the mini excavator and dug out all the contaminated dirt and hauled it back to our pond at the Dry Creek WWTP. Our Vactor Crews cleaned all the storm drain main and recovered 7500 gallons of spilled water.	Vactors used to recove spilled water and clean the 1238' of storm draing system. Contaminated dirt was removed and hauled off. Area in the landscape was washed down with a watre trucka nd all water recoverd. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		A work order was made to remove all the roots from the manhole and we have adjusted the scheduel for cleaning the main.	Within two weeks	08/08/2023 15:30	The cause of the spill was roots that plugged the main. They came in from the joints of the manhole. 	N												N													
5S	5SSO10941	Active	El Dorado Hills CS	El Dorado Irrigation District	889829	1.2	Certified	John Chavers	Collection System Supervisor	09-AUG-23	17-AUG-23	17-AUG-23	Category 1 Spill	EDH-2023-08-04	08/05/2023 08:45	08/05/2023 08:20	08/05/2023 08:30	08/05/2023 10:45	23-5000		Access road to Marina Village 1 Lift Station (38.71008, -121.09168) See Attachment	38.71008	-121.09168	Force Main			2020	See Attachment	Y	See Attachment	2020	0	See Attachment	2020	2020	Surface Water		See Attachment	Y	38.70983	-121.09168							08/05/2023 10:11	See Attachment	See Attachment	Pipe Structural Problem/Failure - Installation		Force Main		Polyvinyl Chloride (PVC)		30	See Attachment	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	See Attachment	See Attachment	Repaired Facilities or Replaced Defect		See Attachment	See Attachment	08/06/2023 10:45	See Attachment	N			Unnamed creek	Stream/Creek			None	Temporary Restricted Use		EID staff	11	N	Y	See Attachment	See Attachment										
8	8SSO10591	Active	Orange City CS	Orange City	889830	1.1	Certified	Mike Carney	Environmental Program Manager		23-AUG-23	23-AUG-23	Monthly Category 3 Spill	5930 E. Cadbury Dr	08/02/2023 10:45	08/02/2023 11:10	08/02/2023 10:00				City manhole overflow at residential neighborhood. 	33.7877	-117.79012	Manhole	N/A	N/A	173	Wastewater spilled from city manhole in street along S. Stonebrook Dr gutter to a catch basin at Cadbury Dr and Stonebrook Dr. 	Y	Catch basin at the corner of S. Stonebrook Dr and Cadbury Dr.	173				173	Drainage Conveyance System	N/A	Catch Basin # 31-115	Y	33.78786	-117.79014							08/02/2023 11:25	Spill volume was estimated using the OCSD manhole vent and pick hole estimation chart.	The reporting person stated that the landscaper, upon discovering the start of the overflowing manhole - at approximately 10:00 a.m., contacted the HOA immediately.	Debris-wipes/Non-disposables	N/A	Gravity Mainline		Vitrified Clay	N/A	45	All wastewater was removed from the conveyance system and surface areas were cleaned up. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Vactor combo truck was used to clear the line, clean and remove all wastewater from the street curb/gutter, along with the collected wash water, wastewater and nuisance water in the storm drain pipe. 	Other (specify below)	Issued HOA door hanger  No Wipes in Pipes  to notify homeowners. 	Issued HOA door hanger  No Wipes in Pipes  to HOA and property management to distribute and notify homeowners.		08/02/2023 12:15	N/A		N/A	08/02/2023 12:15														N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	
4	4SSO11540	Active	Fillmore Sewage CS	Fillmore City	889833	1.1	Certified	Joe Bellomo	Public Works Director		18-OCT-24	18-OCT-24	Monthly Category 3 Spill	SR 126	08/08/2023 05:00	08/08/2023 05:30	08/07/2023 12:20				SR 126 at bypass pump location	34.3952	-118.92606	Manhole			500	Spill traveled from the manhole at down the gutter to the bore hole at C st  	N						500	Street/Curb and Gutter (2 3)		Spill traveled down the curb to C st 	N									08/07/2023 22:45	Estimation reported by bypass pump field crew 	estimated by photo	Other (specify below)	Contractor error	Other (specify below)	Bypass pumps 	Vitrified Clay		30	NA	N	Cleaned Up (specify below); Returned All Spill to Sanitary Sewer System		Patriot environmental disinfected, pressure washed, and vacuumed up spill material 	Other (specify below)	Discuss spill response with contractors 	NA		08/08/2023 07:30	NA		NA	08/08/2023 15:21														NA	NA	NA	NA	NA	NA	NA	NA	NA	
2	2SSO10216	Active	West County WW District CS	West County Wastewater District	889835	1.2	Certified	Gordon Times	Collection System Operations Department Manager		06-NOV-23	06-NOV-23	Monthly Category 3 Spill	4426 Appian Way	08/02/2023 12:59	08/02/2023 13:15	08/01/2023 14:00				Spill occurred at and around MH#15-2-18 in an area approximately 10.5'x12'SqFt, seeping into the soil and puddling up slightly into the curb and gutter.	37.96984	-122.30682	Gravity Mainline; Manhole		curb and gutter	724	The spill seeped out of the MH and the water saturated the soil around it. Some of the water seeped onto the sidewalk and gutter. The flow was prevented from entering the storm drain from a berm that had formed in front of the drain. The crew was able to clean and vacuum the gutter preventing any water from entering the storm drain.	N	NA	0				724	Street/Curb and Gutter (2 3); Unpaved Surface		Spill occurred at and around MH#15-2-18 in an area approximately 10.5'x12'SqFt, seeping into the soil and puddling up slightly into the curb and gutter.	Y	37.96984	-122.30682							08/02/2023 14:15	See Attachment 1	See Attachment 1	Debris-Rags; Pipe Structural Problem/Failure - Controls; Root Intrusion		Gravity Mainline		Vitrified Clay		66	Spill occurred in an empty dirt lot and  affected the soil surrounding the manhole, which we removed and cleaned up. As well as a small portion of the curb and gutter which it spilled out to that was also cleaned up and disinfected.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Deployed both Vac Truck and Machine Rodder to the Spill. The Vac Truck began sucking up the affected areas immediately and the Rodder broke the stoppage, approximately 15' in from structure 150208.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		After breaking the stoppage with the Machine Rodder ,we Hydro cleaned the section several times as well. CCTV'd the line in question to determine problem and integrity of the line. Located the problem and put on repair schedule for near future.		08/02/2023 15:18	After CCTV inspection, noticed root intrusion coming from a break in the pipe		N/A	08/02/2023 15:30														N/A	Put on schedule for Spot Repair	N/A	Yes, Put on schedule to perform spot repair	No	N/A	N/A	N/A	N/A	
4	4SSO10370	Active	Beverly Hills City CS	Beverly Hills City DPW	889841	1.3	Amended	Josette Descalzo	Environmental Compliance Manager	10-AUG-23	22-AUG-23	22-AUG-23	Category 2 Spill	630 Mountain Dr	08/07/2023 09:52	08/07/2023 10:11	08/07/2023 09:52	08/07/2023 13:30	23-5038		Spill occurred at a residential zone on Mountain Drive and Sunset Boulevard. Spill occurred on two adjacent manhole nearby the stated location above.  	34.0867	-118.4048	Manhole			1150	The spill occurred at a residential area within the City of Beverly Hills. The spill went to the street, curb and gutter and catch basin.  See Attachment for photos. 	Y	Some of the spill volume entered the catch basin and drained into the storm drain pipes.  The spill volume was recovered at the catch basin and downstream storm drain pipes. 	1150	0			1150	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		The SSO spilled onto nearby curb and gutter, catch basin and stormdrain system within the Beverly Hills boundaries. 	Y	34.08667	-118.40496	34.08662	-118.40519	34.08263	-118.40099			08/22/2023 10:15	City of San Diego Metropolitan Wastewater Department  SSO Estimate Flow Sheet. The estimate reference sheet shows gallons per minute estimate as the SSO discharges from the manhole. 	City staff was informed by another division of the date and time of the spill.  City staff immediately went to the reported location and confirmed the spill.	Debris from Lateral		Manhole		Vitrified Clay	VCP pipe is plastic lined. 	43	Spill went on the street and nearby catch basin.  Spill was recovered in the affected catch basin and storm drain.  Clean up was performed on the street.  There was no road closures and there were no accidents resulting from the spill. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Spill on the street were vacuumed and the streets were cleaned.  Spill that entered the catch basin and storm drain were recovered.  Catch basins are equipped with screens that held a portion of the spill. It was vacuumed out and catch basin cleaned. Remainder of the spill entered the storm drain system.  Staff went approximately 0.5 mile downstream of the storm drain system to recover the remaining spill.  Storm drain system were cleaned as well. 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Will be inspecting sewer line to determine which lateral the debris originated from. The sewer line is plastic lined and no potential for root intrusion	The City will be performing CCTV inspection to determine which lateral the debris came from. The City will educate the property owner to coordinate future work to prevent a blockage occurring the sewer main. 	City staff performed spill response, recovery and cleanup on 8/7/2023.  Tasks were completed around 15:00 hrs. Sewer restored to normal flow. Catch basin was cleaned up by 12:00 PM and storm drain cleanup was completed by 15:00 hrs.  	08/07/2023 15:00	The affected sewer main is plastic lined. Therefore, root intrusion cannot be a probable cause of the blockage.   CCTV investigation may determine which lateral connection pushed the debris to the sewer main. 	N												N													
4	4SSO10416	Active	Pasadena City CS	Pasadena City	889843	1.6	Certified	Brent Maue	Acting City Engineer		11-FEB-25	11-FEB-25	Monthly Category 3 Spill	396 Patrician way	07/15/2023 15:58	07/15/2023 16:15	07/15/2023 15:48				Overflow was at an easement in a private property - Backyard.	34.15201	-118.17871	Manhole			400	Spill was inside private property backyard at a sewer easement.	N						400	Unpaved Surface		Spill overflowed from a city sewer manhole cover in the backyard of a private property.  	Y	34.15201	-118.17871							07/15/2023 16:30	We observed the rate of flow from the manhole cover bolt holes.  It  was approximately 1 inch high  from an half inch bolt hole from the manhole cover. 	We had our vacuum truck at location and was able to remove spillage. Vacuum tank registered 300 gallons recovered and it matches the overflow calculation provide by crew on location. 	Debris-General; Debris-Rags; Debris-wipes/Non-disposables		Gravity Mainline; Manhole		Vitrified Clay		80	No impact.  Had to sanitize yard and soil at yard of private  property.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Dispatched jetter and vacuum truck to location.  Blocked all storm drain inlet locations at the location, and  immediately set up containment. .  Sprayed disinfectant on soil  in surrounding area.   	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Adjusted maintenance schedule and inspection every 90 days for the next calendar year.  		07/15/2023 16:39	Crew recovered a large amount of Rags, towels, and wipes.  It was in a shape of a ball around 9 inches in diameter.  		None at this time. 	07/17/2023 10:30														No enforcement action taken. 	Increased inspection period and inspect every 90 days until next calendar year Sept. 2024.	Yes to inspect every 90 days and Jet lines if necessary.	Sewer main will be televised in the next 5 years to determine the proper rehabilitation work.	No defect assets found at this time. 	Sewer main will be televised in the next 5 years to determine the proper rehabilitation work.	Not at this time. 	No modification needed at this time.  	None at this time. 	
1	1SSO10023	Active	Del Norte County CSA CS	Del Norte County	889849	1.3	Certified	Jonathan Olson	County Engineer		10-AUG-23	10-AUG-23	Monthly Category 3 Spill	South end of Temple St. Crescent City CA Low Land	08/10/2023 13:30	08/10/2023 13:40	08/10/2023 13:00				FOG, rags, sewer	41.752934	-124.162282	Manhole	NA	NA	350	Approximately 40 feet away to a low brushy area that was inaccessible.  spill was ponded up in the low area.	N	NA					150	Unpaved Surface		Sewer exited the manhole lid and ran to a lower adjacent brushy area that was covered by plants and grasses. City of Crescent City Staff jetted the gravity sewer line and restored natural flow to the system within 40 minutes of notification.   	Y	41.752905	-124.162311							08/10/2023 13:45	5 gmp for 70 minutes based on the City of San Diego manhole picture chart in the County's SSMP.	Assume the spill started 0.5 hours prior to reporting. Based on the wetted area on the ground and visual ponding.	Debris-Rags; Fats, Oil and Grease (FOG); Vandalism (specify below)	Possible vandalism. The manhole is surrounded by a homeless encampment. Found clothing/materials in the line that could have been deposited by  campers . 	Manhole		Vitrified Clay		50	No significant impacts. One individual approached the workers during the clean up and asked for their bucket of feces to be sucked out; this demonstrates that it is common practice for folks to deposit material into buckets and then dispose of it into the sewer manhole.	N	Cleaned Up (specify below)		City staff sucked up as much ponded material/water as possible and then placed lime on the wetted ground surface where accessible. Some areas were covered by thick brush which was inaccessible.	Other (specify below)	Will camera the line after the clean up. 	Once line is videoed, County staff will make a corrective action plan.		08/10/2023 15:01	Rags and foreign material in the line.		Camera the lines after the fact.	08/18/2023 15:30														County Environmental Health officer recommended placing lime on the wetted areas.	NA	NA	Passed a rate increase in 2023.	Plan to perform a system wide condition assessment of the collection system.	NA	NA	NA	Camera the lines after the fact.	
4	4SSO10421	Active	Redondo Beach City CS	Redondo Beach City	889850	1.3	Certified	Geraldine Trivedi	Civil Engineer	10-AUG-23	10-AUG-23	10-AUG-23	Category 1 Spill	Knob Hill & Pacific Coast Highway	08/08/2023 18:56	08/08/2023 19:28	08/08/2023 18:56		-		The spill originated on the street coming from the asphalt in Knob Hill (just south of the intersection with Pacific Coast Highway) Redondo Beach. See map in attachments. 	33.82882	-118.38553	Other (specify below)	The spill appearance point was in the street, crack in asphalt.	n/a	312	See map and photo in attachment section.  	Y	It is estimated that 44 gallons reached the local catch basin before the fire department was able to berm the flow inside the gutter/street.  See map in attachments.	0	44	See attachments and picture of the catch basin where an estimated 44 gallons flowed into a stormdrain system.  The catch basin is an estimated 4,400 feet to the Santa Monica Bay and there was no flow observed at the downstream stormdrain manhole to recover, therefore it is believed that no flow entered the ocean. 	44	268	Drainage Conveyance System		 see attached map.	Y	33.82882	-118.38553							08/08/2023 20:28	Calculated estimated volume based on actual site measurements: Total Volume (3.4 GPM X 92 MIN Duration) =312 Gallons Volume Contained= Berm #1 (43 Ft Length X 3-inch .25 Average Depth X 3 ft Average Width of ponded water x 7.48 =242 Gallons Total) + Berm 2 (21 Ft Length X 1-inch Average Depth.08 X 2 feet Average Width of ponded water X 7.48 26 Gallons Total) = 268 Gallons Volume of Spill to Catch Basin= 44 Gallons Lost 	Calculated estimated volume based on actual site measurements: Total Volume (3.4 GPM X 92 MIN Duration) =312 Gallons Volume Contained= Berm #1 (43 Ft Length X 3-inch .25 Average Depth X 3 ft Average Width of ponded water x 7.48 =242 Gallons Total) + Berm 2 (21 Ft Length X 1-inch Average Depth.08 X 2 feet Average Width of ponded water X 7.48 26 Gallons Total) = 268 Gallons Volume of Spill to Catch Basin= 44 Gallons Lost  	Other (specify below)	The spill was caused by an unknown outside agency drilling through the City's main line in order to install a pipe. City is currently conducting an investigation to identify responsible party.	Gravity Mainline		Vitrified Clay		50	See attachments and picture of the catch basin where an estimated 44 gallons flowed into a stormdrain system.  The catch basin is an estimated 4,500 feet to the Santa Monica Bay and there was no flow observed at the downstream stormdrain manhole to recover, therefore it is believed that no flow entered the ocean. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		The City's Fire Department installed berms in the street and gutter to contain most of the SSO volume.  The Public Works Department was then able to use the City's vactor truck to recover the contained SSO from the berms.  The Public Works Department was also able to restore the flow utilizing the vactor truck, check the downstream stormdrain manhole for any identified flow, and CCTV the line to determine the cause of the SSO.	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	The City is investigating the cause of the SSO, including identifying the outside agency that drilled through the City's main line.  A permanent repair to the conveyance system will be made int he near future.	The City is investigating the cause of the SSO, including identifying the outside agency that drilled through the City's main line.  A permanent repair to the conveyance system will be made int he near future.	The City will make a permanent repair to the main line as soon as possible.	08/10/2023 16:02	Spill response completion date not applicable since the City continues to investigate the cause of the SSO.	Y	The City is investigating the cause of the SSO, including identifying the outside agency that drilled through the City's main line.  A permanent repair to the conveyance system will be made int he near future.	09/11/2023 16:13	Santa Monica Bay	Ocean			None	Other (specify below)	The catch basin where an estimated 44 gallons flowed into a stormdrain system.  The catch basin is an estimated 4,500 feet to the Santa Monica Bay and there was no flow observed at the downstream stormdrain manhole to recover, therefore it is believed that no flow entered the ocean. 	Los Angeles County Health Department	0	N	N											The City is investigating the cause of the SSO, including identifying the outside agency that drilled through the City's main line.  A permanent repair to the conveyance system will be made int he near future.	
2	2SSO10170	Active	Richmond City CS	Richmond City	889851	1.3	Certified	Mary Phelps	Project Manager	10-AUG-23	05-SEP-23	05-SEP-23	Category 1 Spill	5229 Silva Ave	08/07/2023 08:47	08/07/2023 09:47	08/07/2023 08:47	08/07/2023 10:23	23-5059		Manhole overflowing and discharging into Mira Vista Creek (creek is dry), untreated sewage soaked into the ground due to creekbed being dry.	37.93716	-122.321	Manhole			600	Spill entered Mira Vista Creek. 	N	The spill entered an earthen ditch	0	0	Sewage soaked into dry earthen ditch	0	0	Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		Spill discharged to dry creek bed. No water for several months. Crew cleaned and flushed with large amounts of watr	Y	37.93716	-122.321							08/10/2023 15:00	Volume of flow x duration of flow. Volume of vactor that cleaned up the spill.	Spill reported by resident. They noticed the manhole overflowing when they were on their walk.	Debris-General		Manhole		Vitrified Clay		50	Spill discharged to dry creek bed and soaked into ground. Crew fllushed several times to decontaminate.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other (specify below)	Crew flushed creek bed several time to dilute impact of SSO.	Spill was contained to creek bed. Crew flushed bed several times, vactored as much of spill as possible, including paper, debris, and wash water.	Adjusted Schedule/Method of Preventive Maintenance		Will put location on  hot spot  for any additional maintenance required.	Will increase cleaning schedule to annually.	08/11/2023 10:30	Crew responded to location and went upststream of incident to locate blockage in sanitary sewer mainline. Line was blocked with debris (rags).	N			Mira Vista Creek	Reservoir			None, the creek was a dry creek bed.	Restricted Public Access		City of Richmond	1	N	N												
2	2SSO10216	Active	West County WW District CS	West County Wastewater District	889855	1.2	Certified	Gordon Times	Collection System Operations Department Manager	11-AUG-23	25-AUG-23	25-AUG-23	Category 2 Spill	817 Duboce Ave	08/08/2023 15:41	08/08/2023 15:54	08/07/2023 20:00	08/08/2023 19:32	23-5074		The spill came from the clean water Christy boxes in front of the properties, ran down the sidewalk and into the storm drain.	37.9529	-122.36146	Other (specify below)	The appearance points were the freshwater Christy boxes in front of the properties		2940	The spill came from the clean water Christy boxes in front of the properties and ran down the sidewalk and into the storm drain.	Y	The spill reached the storm drain.	290	2650			290	Drainage Conveyance System that discharges to surface water		Spill escaped system from cleanouts of 316 and 317 Duboce Ave. The water entered the storm drain at Duboce Ave. and Fred Jackson Way.	Y	37.95286	-122.36648	37.95268	-122.36695					08/08/2023 16:15	We used the SSSCSC flow chart to estimate the spill volume multiplied by the spill run time.	The resident at 317 Dubose mentioned she had arrived home around 7:30 pm on 8-7-23 and didn't notice the water. She came back out a little after 8pm and noticed the water in her christy box.	Debris-Rags; Pipe Structural Problem/Failure - Controls		Gravity Mainline		Vitrified Clay		70	The spill had little impact to the environment. The area was thoroughly cleaned and disinfected, and the storm drain was flushed, cleaned and the water captured and returned to the collection system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	See below.	The area was washed down into the storm drain. The storm drain was cleaned with fresh water which was recovered from a storm drain MH several blocks downstream. The area was disinfected.	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		CCTV of the sewer confirmed that a major offset was causing wipes and other debris to hang up and cause stoppages. Other structural issues were found as well. The consensus is to use the CUPCCAA process to speed up the replacement of the pipe. Milestone schedule is below.	CCTV Sewer Main: 8-9-23  Send out RFP for pipe replacement: 9-1-23  Complete replacement of sewer: 9-30-23	08/08/2023 19:45	CCTV of the sewer confirmed that a major offset was causing wipes and other debris to hang up and causing the stoppage. 	N												N													
4	4SSO11540	Active	Fillmore Sewage CS	Fillmore City	889858	1.1	Certified	Joe Bellomo	Public Works Director		18-OCT-24	18-OCT-24	Monthly Category 3 Spill	SR 126 200 feet east of C st	08/10/2023 12:31	08/10/2023 12:45	08/10/2023 12:05				During the de-ragging of the pumps the isolation valve appears to have failed and allowed sewer to be placed outside of the manhole for approximately 60-90 seconds. Ferreira staff immediately isolated the spill and kept containment of fluid. Ferreira contacted Patriot for clean up.	34.39513	-118.92634	Manhole			200	No photographs available at this time	N						200	Street/Curb and Gutter (2 3)		The flow left the manhole for approximately 60 seconds and collected in the curb area that was blocked with sandbags prior to the spill occurring.  	N									08/10/2023 12:07	This was an estimate given by the contractor that was on site	This was an estimate given by the contractor that was on site when the spill occurred 	Construction Diversion Failure		Manhole		Vitrified Clay		69	Small puddle of sewage was cleaned up by contractor Patriot Environmental	N	Returned All Spill to Sanitary Sewer System		Small puddle of sewage was cleaned up by contractor Patriot Environmental	Repaired Facilities or Replaced Defect		Pumps were repaired and placed back in service		08/10/2023 14:30	The spill was caused by a bypass pump failure.  The pump briefly lost prime or suction which caused the level to flow from the manhole for about 60 to 90 seconds.  There is a backup pump and pumps were checked by mechanics		none	08/11/2023 14:31														Submitted Prop 65 to the Ventura County Hazardous material	none	This was caused by contractor equipment failure and didn't have any thing to do with maintenance issue	none	none	none	none	none	none	
4	4SSO11540	Active	Fillmore Sewage CS	Fillmore City	889859	1.1	Certified	Joe Bellomo	Public Works Director		18-OCT-24	18-OCT-24	Monthly Category 3 Spill	SR 126 200 feet east of C st	08/10/2023 12:31	08/10/2023 12:45	08/10/2023 12:05				During the de-ragging of the pumps the isolation valve appears to have failed and allowed sewer to be placed outside of the manhole for approximately 60-90 seconds. Ferreira staff immediately isolated the spill and kept containment of fluid. Ferreira contacted Patriot for clean up.	34.39513	-118.92634	Manhole			200	No photographs available at this time	N						200	Street/Curb and Gutter (2 3)		The flow left the manhole for approximately 60 seconds and collected in the curb area that was blocked with sandbags prior to the spill occurring.  										08/10/2023 12:07	This was an estimate given by the contractor that was on site	This was an estimate given by the contractor that was on site when the spill occurred 	Construction Diversion Failure		Manhole		Vitrified Clay		69	Small puddle of sewage was cleaned up by contractor Patriot Environmental	N	Returned All Spill to Sanitary Sewer System		Small puddle of sewage was cleaned up by contractor Patriot Environmental	Repaired Facilities or Replaced Defect		Pumps were repaired and placed back in service		08/10/2023 14:30	The spill was caused by a bypass pump failure.  The pump briefly lost prime or suction which caused the level to flow from the manhole for about 60 to 90 seconds.  There is a backup pump and pumps were checked by mechanics		none	08/11/2023 14:31														Submitted Prop 65 to the Ventura County Hazardous material	none	This was caused by contractor equipment failure and didn't have any thing to do with maintenance issue	none	none	none	none	none	none	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District	889865	1.2	Amended	John J. Hough	San Dist. Superintendent	14-AUG-23	22-AUG-23	22-AUG-23	Category 1 Spill	331257	08/09/2023 12:39	08/09/2023 13:23	08/05/2023 19:00		-		See Attached Spill Map.	38.6002	-121.3656	Lateral Clean Out (Public)			783	See Attached Spill Map.	Y	See Attached Spill Map.	87	0	See Attached Spill Map.	684	684	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See Attached Spill Map.	Y	38.6002	-121.3656	38.5991	-121.3658	38.5991	-121.3725			08/09/2023 13:23	See attached Volume Estimation.	See attached Volume Estimation.	Root Intrusion		Lower Lateral		Vitrified Clay		59	No observed impacts of the spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified Sacramento County Department of Water Resources Drainage O&M.	See attached Description of Event.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected the lower lateral with CCTV on August 9, 2023. Based on the findings, SacSewer adjusted the preventative maintenance schedule from a 36-month schedule to a 12-month schedule.	Adjusted preventative maintenance schedule on 8/10/2023.	08/09/2023 22:20	See attached Description of Event.	N			Strong Ranch Slough	Slough		This needs to be properly completed	No obeserved impacts to aquatic life.	Other (specify below)	The impacted surface water is fenced and not accessible to the public.	N/A	0	N	N												
2	2SSO10115	Active	South San Francisco City CS	South San Francisco City	889869	1.4	Certified	David A. Bockhaus	Public Works Deputy Director	14-AUG-23	24-AUG-23	24-AUG-23	Category 1 Spill	Junipero Serra Blvd - Behind 141 Longford	08/09/2023 22:55	08/10/2023 00:07	08/09/2023 05:09	08/10/2023 16:07	23-5122		The spill took place @ manhole #wF41 on Southbound Junipero Serra Blvd behind 141 Longford Drive in South San Francisco.	37.66393	-122.458505	Manhole	Manhole on Southbound Junipero Serra Blvd behind 141 Longford Drive.		1919	The spill took place @ manhole #wF41 on Southbound Junipero Serra Blvd behind 141 Longford Drive in South San Francisco. From there, it entered a DI which ties into a large storm line with constant flow which goes to the Colma Creek.	Y	Prior to the City's Vac truck being set up for containment @ 12:15am (8/10/23), a portion of the spill entered a large storm line with constant flow which flows to the Colma Creek	0	1631	The discharge point to the drainage conveyance system is a 5' x 7' box culvert that ties into the Colma Creek.	1631	258	Drainage Conveyance System		54  storm line that flows to a 5' x 7' box culvert and into the Colma Creek.	Y	37.666585	-122.449207							08/10/2023 01:21	The spill volume was estimated by using tabulated data from the SMART Workbook - Flow from vent/pick hole produced by DKF Solutions. 2  spout @ 3.9gpm - Duration 492 minutes.	Tabulated data from DKF Solutions - SMART Workbook	Debris-General		Gravity Mainline		Vitrified Clay		50	The spill entered a catch basin that ties into a 54  high flow storm line which flows to a 5' x 7' box culvert that flows to the Colma Creek.  Roughly 3,973 feet from appearance point to surface water.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		See attachment	Adjusted Schedule/Method of Preventive Maintenance		This sanitary sewer segment will be moved from an annual schedule to a 6 month schedule in an effort to prevent future spills.	n/a	08/10/2023 02:30	CCTV inspection showed no defects to the pipe. Staff noticed a large amount of debris after relieving the blockage in the line.	N			Colma Creek	Stream/Creek			n/a	Other (specify below)	No impact to public access.	n/a	0	N	N												
2	2SSO10212	Active	Vallejo Sfcd CS	Vallejo Flood & Wastewater District (formerly Vallejo San & Flood Control District)	889870	1.2	Certified	Justin Keating	Director of Field Operations		14-AUG-23	14-AUG-23	Monthly Category 3 Spill	15 Frisbie Street	07/01/2023 09:07	07/01/2023 09:51	06/30/2023 16:00				Spill location in backyard easement.	38.11729	-122.26191	Manhole			169	Sewer manhole was not actively overflowing at the time of Operator's arrival. Spill had impacted immediate area around sewer manhole.	N						169	Unpaved Surface		Spill impacted the unpaved surface around sewer manhole.										07/01/2023 10:20	Measured volume method. Measured area totaled 22.64 Cubic Feet. 22.64 cu. ft. X 7.48 Gallons = 169.37 Gallons.	Spoke with reporting party. They mentioned originally seeing sewer manhole overflow on 6/30/23, just after 1600 hours. Sewer manhole was not actively overflowing at the time of Operator's arrival, which does not allow us to have an accurate end time. The end time used in this report, is the time the blockage was cleared in the sanitary sewer main.	Debris-Rags		Gravity Mainline		Vitrified Clay		44	Spill occurred in an easement. Grass/dirt/concrete area impacted.	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Spill occurred in an easement. Grass/dirt/concrete area impacted. Removed saturated soil, washed area down.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Performed CCTV inspection Performed follow up line cleaning Added sewer main to the Preventative Maintenance Program.		07/01/2023 10:50	Performed CCTV inspection. Found grit deposit, possible construction debris that held back an accumulation of paper/rags. Unable to find an upstream source.		None.	07/06/2023 16:30														NA	NA	NA	None at this time	CCTV Inspection	NA	The documentation I can provide would be the record of the 6-month preventative maintenance schedule in our CCMS.  Attachments  feature in CIWQS is not functional on my end.	NA	None.	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District	889883	1.1	Certified	David Leamer	Assistant Superintendent		23-AUG-23	23-AUG-23	Monthly Category 3 Spill	329811	07/07/2023 19:45	07/07/2023 20:18	07/07/2023 19:15				See Attachment, Spill Map and Photos	38.50513	-121.48265	Manhole	N/A		127	See Attachment, Spill Map and Photos	Y	See Attachment, Spill Map and Photos	107				127	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		See Attachment, Spill Map and Photos	Y	38.50556	-121.48279	38.50797	-121.4829					07/07/2023 20:50	See Attachment, Spill Volume Estimation.	See Attachment, Spill Volume Estimation.	Debris-General		Gravity Mainline		Vitrified Clay		49	No observed impact of spill	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		SacSewer M&O crews used a hydro vacuum truck to rinse, and vacuum affected above ground surfaces and storm drain in contact with sewage. SacSewer M&O crews returned all recovered spill to the sewer system. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected mainline with CCTV on July 13, 2023. Based on findings, SacSewer increased preventative cleaning frequency to 12 months from 24 months.		07/08/2023 02:45	The SacSewer manhole overflowed to a paved surface, sidewalk, curb, gutter, and a storm drain inlet at 6633 24th Street, entering the storm drain system. Debris was cause of stoppage in mainline.  Tested the following locations:  SDMH at 2500 49th Avenue - For comparison purposes SD Inlet at 6633 24th Street� Presence of sewage detected SDMH in intersection of 24th Street and 50th Avenue� Presence of sewage detected SDMH at 2400 49th Avenue � No presence of sewage detected The large-diameter storm drain system had light flow and was holding light water.  M&O is to clean all above-ground surfaces in contact with the SSS and hydro-vacuum the affected storm drain system from the SD inlet to the SDMH at 2400 49th Avenue.		None	07/13/2023 14:49														N/A	SacSewer increased preventive cleaning frequency from 24 months to 12 months.	SacSewer increased preventive cleaning frequency from 24 months to 12 months.	N/A	SacSewer inspected mainline with CCTV on July 13, 2023.	N/A	SacSewer increased preventive maintenance frequency on July 29, 2023.	N/A	None	
4	4SSO11388	Active	County Sanitation District Joint Outfall CS	Los Angeles Cnty Sanitation Districts	889897	1.2	Certified	Andre Schmidt	Wastewater Collection Systems Manager	16-AUG-23	22-AUG-23	22-AUG-23	Category 2 Spill	Lone Hill Avenue Trunk (District 22)	08/11/2023 16:15	08/11/2023 17:04	08/11/2023 16:00		-		The spill originated from LACSD�s Lone Hill Avenue Trunk at MH 22 0724 located at coordinates 34.120351� N, -117.826892� W, approximately 85 feet south of the I-210 Freeway, and approximately 565 feet east of South Lone Hill Avenue in the City of Glendora.  	34.120351	-117.826892	Manhole			5600	The spill area extended approximately 28 feet south from MH 22 0724 to the San Dimas Wash, 28 feet west into the Lone Hill Park and Ride parking lot, and an additional 215 feet west along the south curb of the parking lot to an intersecting curb.  The spill traveled west in the San Dimas Wash approximately 1,330 feet to a rubber dam in the channel.  	Y	The spill traveled aboveground for approximately 28 feet and spilled over the northern wall of the San Dimas Wash, a concrete channel located directly south of MH 22 0724 as shown in Photo 2 of Attachment.  An estimated 5,600 gallons of wastewater reached the San Dimas Wash.  	5600	0			5600	Drainage Conveyance System that discharges to surface water; Paved Surface; Unpaved Surface		The spill originated from LACSD�s Lone Hill Avenue Trunk at MH 22 0724 located at coordinates 34.120351� N, -117.826892� W, approximately 85 feet south of the I-210 Freeway, and approximately 565 feet east of South Lone Hill Avenue in the City of Glendora.  The spill area extended approximately 28 feet south of MH 22 0724 to the San Dimas Wash, 28 feet west into the Lone Hill Park and Ride parking lot, and an additional 215 feet west along the south curb of the parking lot to an intersecting curb.  The spill traveled west in the San Dimas Wash approximately 1,330 feet to a rubber dam in the channel.	Y	34.120351	-117.826892	34.120277	-117.826966	34.120148	-117.827633	34.119443	-117.831122	08/11/2023 19:20	See Attachment	The spill start time of 4:00 p.m. is based on the time the spill was discovered by the individual who reported the spill to Los Angeles County Department of Public Works (LACDPW).  The spill end time of 7:20 p.m. was observed by LACSD staff when flow from MH 22 0724 ceased.  	Vandalism (specify below)	The spill was caused by vandals that removed the manhole frame and cover from MH 22 0724 and placed items into the sewer.	Manhole		Vitrified Clay		55	See Attachment	N	Cleaned Up (specify below); Other (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	-Repaired damaged manhole and secured the manhole cover with a steel strap and padlock -Flushed affected areas in Lone Hill Park and Ride parking lot with potable wash water -Cleaned and flushed the San Dimas Wash with potable wash water -Collected and returned wash water to sewer 	See Attachment	Repaired Facilities or Replaced Defect		See Attachment	See Attachment	08/12/2023 04:47	See Attachment	N												N													
8	8SSO10590	Active	Newport Beach City CS	Newport Beach City	889912	1.1	Certified	Michael Lynch	Wastewater Supervisor		23-AUG-23	23-AUG-23	Monthly Category 3 Spill	2933 Perla	08/16/2023 11:57	08/16/2023 12:30	08/16/2023 11:40				Photo's of the manhole and area holding spill.	33.6449	-117.87424	Manhole		NA	300	Spill was contained in the swale and grass area.	N						250	Unpaved Surface		Waking path and grass area.	Y	33.64488	-117.87424	33.64536	-117.87425					08/16/2023 12:40	CWEA manhole overflow estimate pictures and the known timeline for 5GPM x time line 1 hour + 300 gals total. Vacuum truck 125 gal, 2 loads recovered. Call received at 11:57 am, resident took a video and called so estimate of 11:40 am start time and 12:40 pm blockage cleared time.	Time call was received and time blockage was cleared.	Debris-Rags; Root Intrusion		Gravity Mainline		Vitrified Clay		60	Impact was minimal, the majority of the spill was captured, the grass greenbelt was wet. The resident at2933 had minimal damage, tub had black water and wax ring on the toilet leak a small amount. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Built a berm at nearest storm drain structurer, met hydro truck on access road to clear blockage from the downstream manhole. Root cut line after clearing blockage. Called for vactor truck incase spill entered the storm drain. called small vacuum truck to clean up contained spill water and do cleanup. Called OCEHD to report spill.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		CCTV to see if lining is a possible fix to the root intrusion. or just add to a quarterly cleaning schedule and root foaming annually.		08/17/2023 08:07	CCTV showed 2 locations where root intrusion had occurred.		CCTV	08/17/2023 09:00														NA	Will CCTV	Quarterly cleaning until resolved.	After CCTV is done	CCTV	CCTV	NA	None	CCTV	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	889920	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	17-AUG-23	07-NOV-23	07-NOV-23	Category 1 Spill	1542 96th Avenue	08/15/2023 21:21	08/15/2023 22:00	08/15/2023 20:20	08/16/2023 08:50	23-5217		Sewage water was flowing through the ground near the gutter at the culvert.	37.74659	-122.1694	Other (specify below)	Sewage water was flowing through the ground near the gutter at the culvert.		1100	Spill started at 96th Avenue and Walnut Ave, continue to 96th Avenue to Holly St, where it drained down to Storm. Inside the storm line it went to 94th Ave & Holly St.	Y	The name of the underground Conveyance storm system is Elmhurst Creek, please see pictures attached.	606	494	Visual of Elmhurst Creek shows creek without signs of fecal matter or toilet paper.	494	0	Drainage Conveyance System; Street/Curb and Gutter (2 3)		Eleven hundred gallons spilled from the ground due to a sewer blockage. Grease and debris obstructed the sewer main causing the overflow.	Y	37.74659	-122.1694	37.74704	-122.18909					08/16/2023 12:00	The volume calculations were based on eyewitness account. Start time was 8:20 pm.  220 minutes x 5 GPM=1100 gallons	The volume calculations were based on eyewitness account. Start time was 8:20 pm.  220 minutes x 5 GPM=1100 gallons	Fats, Oil and Grease (FOG)	Large amounts of grease.	Gravity Mainline		Vitrified Clay		90	Spilled started at 96th Avenue and Walnut, it continued to 96th and Holly St. It traveled down to the separate storm drain, down to 94th avenue and Holly St. More than half the spill was recovered.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Job site was cleaned, and disinfected area above ground at sidewalk and   street/gutter.	Job site was cleaned, and disinfected area above ground at sidewalk and   street/gutter. Staff Hydro Flushed, and vacuumed spill residue inside the separate storm system.	Adjusted Schedule/Method of Preventive Maintenance	High frequency hydro flush maintenance is changed from six-month routine to three-month routine. 	High frequency hydro flush maintenance is changed from six-month routine to three-month routine. 	High frequency hydro flush maintenance is changed from six-month routine to three-month routine. 	08/17/2023 12:00	Responding crew removed heavy grease deposition (FOG) blockage from the main line.	Y	We are currently performing heavy cleaning of the line, also CCTV inspection is needed to complete the investigation.	08/25/2023 12:00	Elmhurst Creek	Stream/Creek		Elmhurst  Creek	No observation damage to aquatic life.	Other (specify below)	Public access to the creek was restricted by existing cyclone fence.	Not applicable to this spill.	0	N	N											We are currently performing heavy cleaning of the line, also CCTV inspection is needed to complete the investigation.	
4	4SSO10370	Active	Beverly Hills City CS	Beverly Hills City DPW	889929	1.2	Certified	Josette Descalzo	Environmental Compliance Manager 	17-AUG-23	29-AUG-23	29-AUG-23	Category 2 Spill	S. Bedford Dr. and Newman St. 	08/14/2023 11:38	08/14/2023 11:57	08/14/2023 11:38	08/14/2023 15:45	23-76105		Spill occurred at residential area in the City of Los Angeles where the Beverly Hills system passes through.  City responded to break the blockage, recover spill and clean affected areas. 	34.05677	-118.40459	Manhole	NA	NA	1110	The spill occurred at a residential area in the border of Beverly Hills and Los Angeles.  The spill occurred on the street, alleys and storm drain system.  	Y	The spill entered the catch basin and storm drain system in the City of Los Angeles.  Beverly Hills coordinated access and recovery of overflow in the City of LA storm drain system.  	1110	0			1110	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		The spill event occurred at residential area between the city of Beverly Hills and Los Angeles.  The spill ended up in the street/alley, curb and gutter, catch basin and storm drain system.   The spill volume was recovered and returned to the sewer. The affected areas were cleaned and the sewer main was restored to proper flow. 	Y	34.05674	-118.40459	34.05688	-118.40456	34.05689	-118.4035	34.05399	-118.40174	08/14/2023 12:15	Beverly Hills uses the City of San Diego  Metropolitan Wastewater Department Reference Sheet for Estimating Sewer Spills from Overflowing Sewer Manholes.   The reference sheet has a flow rate estimate for overflows discharging from a manhole.  	The City of Beverly Hills utilizes the Smart Cover System to monitor sewer level at certain sections of the sewer system.  The Smart Cover System sent an alarm to staff on the day and time of the spill event.  Staff went to the site immediately and determined a spill was occurring.  The notification date and time were used as start time and date of the spill.   The spill end time was determined after the spill was stopped at the manhole.  	Debris from Lateral		Manhole		Vitrified Clay		87	The spill occurred at the streets/alleys, catch basin and storm drain at a residential area in the border of Beverly Hills and Los Angeles. No street closure occurred or any injuries or property damage occurred because of the spill.    City staff broke the stoppage, recovered the spill and cleaned up the streets/alley, catch basin and storm drain system. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		City staff arrived within 20 minutes upon receiving an alert from the Smart Cover System.  Staff setup to break the blockage and requested additional staff to contain the spill location in the affected street/alley and catch basin.  Staff helped contained the spill as much as possible until the blockage was removed.   In terms of recovery, staff vacuumed the spill on the street, catch basin and storm drain. Staff also cleaned the affected areas as well.  The City went 0.3 storm drain miles downstream of the spill site to recover the spill and cleaned the affected storm drain. 	Inspected Sewer Using CCTV to Determine Cause		The particular sewer main is already in a priority 90-day maintenance schedule . The sewer main level is also monitored with the Smart Cover System.  The sewer level has remained consistent and no level increase has been observed by staff.  The Smart Cover System is effectively working for Beverly Hills. Staff responds to alarms including level rise or surges.  In terms of pipe integrity, the sewer main is plastic lined to prevent root intrusion or failures in proper function.   Based on the system in place, the SSO was not anticipated.  This was proven after a post SSO CCTV inspection.  A root ball from a lateral was identified.  City staff informed the responsible property on Aug. 24, 2023 of the event and highly recommended to coordinate future maintenance with the City to prevent overflow events.  	On 8/14/2023, City staff evaluated the affected sewer system and maintenance record to determine if the City was at fault of the spill.  City staff also reached out to property owners to see if any sewer lateral maintenance were being performed.   On 8/24/2023, a post-SSO CCTV inspection was completed and determined that a debris from a private lateral (root ball and other materials) were pushed to the sewer main and caused the blockage. On the same day, staff informed the responsible property owner of the spill and highly recommended to coordinate with the City on future sewer maintenance.   The City will continue to work with private contractors to coordinate sewer maintenance work with the City to prevent future spill events. 	08/14/2023 19:30	City staff examined GIS maps and plans of the sewer main. The sewer main is in an aggressive maintenance schedule. It is also plastic lined.  The sewer main level is also monitored.  The sewer level has been consistently normal for many months.   With the systems in place, the most probable cause is a debris pushed from a lateral.  This was confirmed with a post-SSO CCTV inspection that showed a root ball entering the sewer main from a private lateral connection.  	N		08/31/2023 16:00										N													
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	889945	1.3	Certified	Ameal McLaurin	Sewer Supervisor 2		18-AUG-23	18-AUG-23	Monthly Category 3 Spill	2111 Mac Arthur Blvd., Oakland Ca	08/02/2023 13:30	08/02/2023 14:01	08/02/2023 11:00				Sewer Lateral Clean Out (Private) outside of the property, running down to back side private parking lot.	37.80047	-122.21699	Lateral Clean Out (Private)			76	Sewer Lateral Clean Out (Private) outside of the property, running down to back side private parking lot.	N						10	Paved Surface		Sewer Lateral Clean Out (Private) outside of the property, running down to back side private parking lot.										08/02/2023 15:15	Average Width: 2'+1'+2'+9'+6'+2'=22'     22'/ 6 = 3.66' Average Depth: .02'+.0026'+.04'=.0626'    .0626' / 3 = .0208' 133'L x 3.66'W x .0208'D x 7.48-Gal = 76 Gallons	Start time was based on caller eyewitness account.	Debris from Construction; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		90	Concrete walkway and paved private parking lot.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Contained portion of the spill, washed the spill affected area, vacuumed a portion of the spill area.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		Added mainline to 6 Month High Frequency Program, CIP WO. 1452641 was created.		08/16/2023 15:00	CCTV inspection found 6  VCP Mainline to have separations from possible abandoned sewer laterals, letting sand and debris pour inside the invert of the main, causing buildup of grease and debris.		Investigation has been completed.	08/16/2023 15:00														N/A	Added mainline to 6 Month High Frequency Program, CIP WO. 1452641 was created.	Added mainline to 6 Month High Frequency Program.	 CIP WO. 1452641 was created.	CCTV inspection was completed on 8/16/23.	 CIP WO. 1452641 was created.	6 Month High Frequency Maintenance Program WO. #1450650, and CIP WO. 1452641.	6 Month High Frequency Maintenance Program and CIP WO. 1452641.	Investigation has been completed.	
4	4SSO10414	Active	Palos Verdes Estates City CS	Palos Verdes Estates City	889959	1.1	Certified	Robert Swartz	Sr. CE		06-SEP-23	06-SEP-23	Monthly Category 3 Spill	1543 (2505 V�a La Selva, Palos Verdes Estates)	08/10/2023 12:00	08/10/2023 12:20	08/10/2023 11:01				CSMD Map Sheet No. 1543 MMS No. 8339669	33.80396	-118.38794	Lateral Clean Out (Private)			50	The lateral clean-out at the subject address was overflowing.	N						0	Unpaved Surface		The lateral clean-out at the subject address was overflowing.	Y	33.80396	-118.38794							08/10/2023 12:30	CWEA SSCSC Manhole Gauge	CWEA SSCSC Manhole Gauge	Root Intrusion		Gravity Mainline		Vitrified Clay		63	N/A	N	Cleaned Up (specify below); Other Enforcement Agency Notified		Hydro-cleaned the overflow on the mainline and broke down heavy root stoppage. All necessary agencies were promptly notified of the situation.	Other (specify below)	Sewer is already added to Preventive Maintenance Program. Will inspect and monitor condition. Will inspect using CCTV to determine if a change is required.	Will inspect using CCTV to determine if a change is required.		08/10/2023 14:15	Will inspect using CCTV to determine if further actions are needed.		Will inspect using CCTV to determine if a change is required.	10/10/2023 12:00														N/A	N/A	Will inspect using CCTV to determine if a change is required.	N/A	N/A	N/A	N/A	N/A	Will inspect using CCTV to determine if a change is required.	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	889960	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		27-MAR-24	27-MAR-24	Monthly Category 3 Spill	4500 West Doran Street	08/20/2023 20:47	08/20/2023 20:47	08/20/2023 20:47				The initial crew arrived at 8:47 P.M. and discovered a 48-inch mainline sewer serving the referenced area backed up due to excessive rain. Pump trucks were mobilized to alleviate the back up. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.153174	-118.277335	Manhole			470	Overflow Location.	N						470	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	34.153174  -118.277335	Y	34.153174	-118.277335							08/20/2023 21:35	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.	On Sunday, August 20, 2023 8:47 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 4500 Doran Street (TG 564-C4). A CWCD crew was immediately dispatched to the incident location and determined that the 48-inch main line sewer serving the referenced area had backed up due to flow exceeding capacity during a rain event. At 9:35 PM., the surcharge receded and the backup ceased. All the necessary clean-up steps were performed.	Flow Exceeded Capacity (Separate Collection System Only)		Gravity Mainline		Concrete		84	None At This Time.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Returned All Spill to Sanitary Sewer System		A CWCD crew was immediately dispatched to the incident location and determined that the 48-inch main line sewer serving the referenced area had backed up due to flow exceeding capacity during a rain event. At 9:35 PM., the surcharge receded and the backup ceased. All the necessary clean-up steps were performed.  It was estimated that approximately 470 gallons of sewage flowed from the sewer due to the surcharge. The crews were able to establish containment and captured the entire 470 gallons of sewage, returning it to the sewer system.	Plan Rehabilitation or Replacement of Sewer	It was estimated that approximately 470 gallons of sewage flowed from the sewer due to the surcharge. The crews were able to establish containment and captured the entire 470 gallons of sewage, returning it to the sewer system.	A CWCD crew was immediately dispatched to the incident location and determined that the 48-inch main line sewer serving the referenced area had backed up due to flow exceeding capacity during a rain event. At 9:35 PM., the surcharge receded and the backup ceased. All the necessary clean-up steps were performed.  It was estimated that approximately 470 gallons of sewage flowed from the sewer due to the surcharge. The crews were able to establish containment and captured the entire 470 gallons of sewage, returning it to the sewer system.		08/20/2023 21:35	It was estimated that approximately 470 gallons of sewage flowed from the sewer due to the surcharge. The crews were able to establish containment and captured the entire 470 gallons of sewage, returning it to the sewer system.		Maintenance Program In Planning	08/20/2023 21:35														None At This Time.	Maintenance Schedule Is Being Planned.	Maintenance Schedule Is Being Planned.	Maintenance Schedule Is Being Planned.	Maintenance Schedule Is Being Planned.	Maintenance Schedule Is Being Planned.		Maintenance Schedule Is Being Planned.	Maintenance Program In Planning	
1	1SSO11491	Active	Santa Rosa City CS	Santa Rosa City Utilities Dept	889974	1.3	Certified	Ron Marincic	Utility System Superintendent	22-AUG-23	22-AUG-23	22-AUG-23	Category 1 Spill	Boas Dr.	08/21/2023 11:32	08/21/2023 11:49	08/19/2023 16:00	08/21/2023 13:43	23-5336		Spill origin was out of a gravity mainline manhole(64) which is in a dirt easement.  Blockage was due to roots entering barrel section and dropping down into channel(MH 63).  Photos attached.  Manhole will be treated with root inhibitor and grouted.	38.46597	-122.65757	Gravity Mainline; Manhole		Blockage occurred at MH 63 due to roots.  Minimal amount (1 gal) at this location.  The majority of the spill came from upstream MH 64.	24192	Photos attached.  Spill mostly absorbed into dirt.  Remainder flowed into dry creek bed(Austin Creek) and was retrieved.  Calculation sheets attached.  Flow was estimated at 9 gpm.  During the investigation, it was discovered that the whiteness first noticed on 8/19 at 4:00 PM( two days prior)   	N				Photos attached.  Discharge was into dry creek bed.  All evidence of spill vacuumed and removed.	190	190	Surface Water; Unpaved Surface		Spill occurred along a dirt easement immediately adjacent to Austin Creek.(dry creek bed).  Spill was absorbed around manhole and contained in creek bed.  	Y	38.46608	-122.65698							08/21/2023 12:48	Calculations were based on area/volume calculations.  Estimated GPM, time frame based on investigation.  Calculation sheets attached. 	Beginning time determined through investigation and interviewing witnesses determined spill likely began 2 days prior.  End time when crews broke blockage.	Root Intrusion		Gravity Mainline; Manhole		Concrete		28	Area around MHs was dry dirt.  No water in creek.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System	Vacuumed all evidence of wastewater.  Crews used flexible corrugated hose to reach creek bed to flush and vacuumed creek.  Pictures attached.	Upon confirmation of spill, crews were immediately dispatched with combo trucks.  Spill was being contained in dry creek and vacuumed/flushed.	Other (specify below)	MH barrel will be treated with root inhibitor and grouted. 	Roots were removed and MH/line was cleaned.  MH will be treated for roots and regrouted.	Work will be performed ASAP.	08/21/2023 16:00	Upon vacuuming down MH 63, it was apparent that the blockage was roots that had fallen down from barrel section of MH.  Increased volume calculations were based on interviewing witness that stated she noticed it approx.. 2 days prior.	N			Austin Creek	Other (specify below)	Dry creek bed.		None.	Other (specify below)	None	N/A	0	N	N												
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	889975	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		27-MAR-24	27-MAR-24	Monthly Category 3 Spill	9542 West Cherokee Lane	08/15/2023 13:39	08/15/2023 14:17	08/15/2023 13:39				The initial crew arrived at 2:17P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.109988	-118.403545	Lateral Clean Out (Private)			768	None Taken.	N	8-inch main line sewer.	0				0	Other (specify below)	The entire back up amount soaked into the ground.	The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.	N									08/15/2023 14:47	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.	Spill flowrate and volume determination based on flowout pickhole or opening 	Root Intrusion		Gravity Mainline		Vitrified Clay		95	It was estimated that approximately 768 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground	N	Cleaned Up (specify below); Restored Flow		The crew removed the blockage and the backup ceased at 2:47 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		The crew removed the blockage and the backup ceased at 2:47 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.		08/15/2023 14:47	A CWCD crew was immediately dispatched to the incident location and determined that 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 2:47 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.		None.	08/15/2023 14:47														None.	Root Control Treatment, and Quarterly Maintenance.	Quarterly Maintenance.	None.	None.	None.		The crew was able to establish containment and subsequently the entire back up amount soaked into the ground. Pipeline is in Root Control Treatment Program.	None.	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	889977	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		27-MAR-24	27-MAR-24	Monthly Category 3 Spill	3485 North Cahuenga Boulevard 	08/16/2023 19:47	08/16/2023 20:30	08/16/2023 19:47				The initial crew arrived at 8:30P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.132303	-118.355197	Manhole			187	No Photos Taken.	N						0	Other (specify below)	The entire back up amount soaked into the ground.	34.132303  118. 355197										08/16/2023 20:52	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.	Spill flowrate and volume determination based on flowout pickhole or opening 	Root Intrusion		Gravity Mainline		Vitrified Clay		97	It was estimated that approximately 187 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.	N	Cleaned Up (specify below); Restored Flow		On Wednesday, August 16, 2023, at 7:47 PM., the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 3485 North Cahuenga Boulevard (TG 563-C7). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 8:52 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.    It was estimated that approximately 187 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		Mainline Sewer Repairs Completed November 1, 2023.		08/16/2023 20:52	The cause of the blockage was attributed to root intrusion.		None.	09/14/2023 16:29														None At This Time.	Mainline Sewer Repairs Completed November 1, 2023., Cleaning Cycle Has Been Adjusted.	Mainline Sewer Repairs Completed November 1, 2023., Cleaning Cycle Has Been Adjusted.	None At This Time.	Mainline Sewer Repairs Completed November 1, 2023.	None At This Time.	Mainline Sewer Repairs Completed November 1, 2023., Cleaning Cycle Has Been Adjusted.	the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 3485 North Cahuenga Boulevard (TG 563-C7). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 8:52 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  	None.	
8	8SSO10643	Active	Yucaipa Valley Water Dist CS	Yucaipa Valley Water District	889978	1.5	Certified	Ryan Janisch	Public Works Supervisor	22-AUG-23	23-AUG-23	23-AUG-23	Category 1 Spill	12784 California St. Yucaipa CA 92399	08/21/2023 08:24	08/21/2023 08:36	08/21/2023 00:25		-		Picture of washed-out sewer pipe.	34.02096	-117.04006	Gravity Mainline			480	Washed-out sewer gravity sewer main in the wash.	Y	Sewer main was washed-out by the tropical storm. 	0	480	Wash where pipe was wased-out.	480	0	Drainage Conveyance System		It discharged to a wash during a tropical storm event.	Y	34.020997	-117.040009							08/21/2023 09:18	By timing how long it took to fill a 5 gallon bucket.	Time the storm was at its worst to when we found it.	Natural Disaster (specify below)	Tropical storm Hillary	Gravity Mainline		Vitrified Clay		38	No visible impact.	Y	Restored Flow		We plugged off the sewer while repairs were made. As far as clean-up we picked up everything we could find. 	Repaired Facilities or Replaced Defect		We plan on working with the City of Yucaipa to put in a better storm channel.	08/22/2023	08/21/2023 11:36	It was pretty clear that it was the tropical storm event.	N			unnamed wash	Wash			None	Other (specify below)	None	None	30	Y	N												
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	889979	1.2	Certified	Mark Fernandez	Sanitation Manager II 	30-AUG-23	30-AUG-23	30-AUG-23	Category 2 Spill	2926 North Briar Knoll Drive	08/21/2023 13:21	08/21/2023 14:09	08/21/2023 14:28	08/21/2023 17:30	23-5349		The initial crew arrived at 2:09P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.124147	-118.373866	Lateral Clean Out (Private); Lower Lateral (Private)			1445	The entire back up amount soaked into the ground.	N	The entire back up amount soaked into the ground.					0	Other (specify below)	The entire back up amount soaked into the ground.	The entire back up amount soaked into the ground.	Y	34.124147	-118.373866							08/21/2023 14:28	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation, as well as SSO volume was estimated utilizing a standardized template which calculates the volume by using dimensional analysis.	Time the call was received 	Root Intrusion		Gravity Mainline		Vitrified Clay		74	None to report 	N	Contained All or Portion of Spill; Restored Flow		The initial crew arrived at 2:09P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Condition assessment and spill review meeting 	Condition assessment 	08/21/2023 14:28	Sewer is being inspected using CCTV and laser profiling to determine cause, condition, and corrective action to be taken.	Y	The Closed Circuit Television inspection revealed a small defect, which will be repaired by a contractor.  In an effort to prevent future incidents at this location the sewer will be placed on a semi-annual cleaning  schedule.	08/24/2023 16:00										N												The Closed Circuit Television inspection revealed a small defect, which will be repaired by a contractor.  In an effort to prevent future incidents at this location the sewer will be placed on a semi-annual cleaning  schedule.	
6B	6SSO11169	Active	Victor Valley Wastewater CS	Victor Valley Wastewater Reclamation Authority	889985	1.3	Certified	Latif Laari	Environmental Compliance Manager		01-SEP-23	01-SEP-23	Monthly Category 3 Spill	Hesperia Metering Station 	08/21/2023 10:45	08/21/2023 10:45	08/20/2023 16:55				34.471948, -117.279315 VVWRA Hesperia Metering Station   	34.47195	-117.27934	Gravity Mainline; Other Sewer System Structure	Flow metering station 		149	wastewater come out of 2 manholes lids lift holes	N						0	Unpaved Surface		Spill was limited to the metering station dirt foot print  	Y	34.47195	-117.27935							08/20/2023 17:00	Ponded Sewage Calculation from SMART sewer overflow volume estimation workbook by DKF Solutions	Level Sensor installed inside the metering station at time of spill	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Gravity Mainline; Other (specify below)	Flow metering station 	Concrete		42	very small impact , spill was cleaned up immediately 	Y	Cleaned Up (specify below)		once the operator discovered the spill , cleanup measures were taken and new manholes frames and covers that can seal will be installed shortly to replace old cast iron lids.	Other (specify below)	I&I study in progress to determine root causes of I&I during storms	once the operator discovered the spill , cleanup measures were taken and new manholes frames and covers that can seal will be installed shortly  to replace old cast iron lids.		08/22/2023 14:39	Tropical storm caused a huge increase in I&I , state emergency in effect 		yes, the I&I study is ongoing	09/01/2023 08:59														none	I&I study will be completed and recommended action will be taken.	none	none	none	install a relief sewer in future years to increase capacity 	none	none	yes, the I&I study is ongoing	
3	3SSO11609	Active	Pacific Grove City CS	Pacific Grove City	889987	1.3	Certified	Daniel Gho	Director		23-AUG-23	23-AUG-23	Monthly Category 3 Spill	225 Grove Acre	08/22/2023 12:00	08/20/2023 12:35	08/20/2023 11:53				Spill was flowing out of cleanout in front of 235 Grove Acre	36.62732	-121.93124	Lateral Clean Out (Private)			400	The spill hit the road and went into a drain that discharges to land.  The road where the failure appeared, due to failed pipe,  created a sink hole and spill began to go back into pipe from sink hole	Y	The spill hit a storm drain which discharges to land	0				350	Paved Surface; Unpaved Surface		Spill hit a drain but discharges to land.  Only 40-50 gallons hit the drain as it was diked quickly and then vacuumed up. The spill hit the road and went into a drain that discharges to land.  The road where the failure appeared, due to failed pipe,  created a sink hole and the spill began to go back into the pipe from sinkhole.  we setup a bypass and stoped the spill and repaired the pipe.  										08/20/2023 15:00	Amount recovered estimated amounts spilled.  	By alarm times from first responders	Other (specify below)	Pipe Failure due to previous utility construction 	Gravity Mainline		Vitrified Clay		70	No impact.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		The operator arrived on the scene and ran the line to alleviate any blockage.  The operator was not able to clear the blockage due to pipe failure.  We setup a bypass and removed and replaced the pipe.  	Repaired Facilities or Replaced Defect		Operator removed and replaced the damaged pipe, plus 20 feet in both directions		08/20/2023 15:00	Operator noticed that a utility company that bore conduit hit our sewer line causing a crack in the pipe which created the failure.  		N/A	08/21/2023 09:00														N/A	N/A	N/A	N/A	yes	N/A	N/A	N/A	N/A	
2	2SSO10099	Active	Burlingame City CS	Burlingame City PWD	889993	1.2	Certified	RICHARD HORNE	Streets, Storm Drain and Sewer Division Manager		28-SEP-23	28-SEP-23	Monthly Category 3 Spill	1116 Capuchino avenue	08/14/2023 14:08	08/14/2023 14:25	08/14/2023 13:50				Spill discharged in utility easement behind address.	37.5844	-122.36405	Lateral Clean Out (Public)			60	The extent of the spill was  a 6' x 10' x 2 area in the utility easement dirt area	N						60	Unpaved Surface		The SSO occurred at the lower lateral cleanout for 1116 Cappuccino, in the easement. Staff member S35 arrived to find a city clean out in the utility easement that had overflowed but was not actively flowing. The destination of the spill was contained in the utility easement and spread to an area of 6' x 10' x 2  from the city clean out in the dirt area	Y	37.5844	-122.36405							08/14/2023 15:58	The methods of determining the spill volume were the eyeball method as well as the area/volume method. Also the clean up crew removed two 40 gallon garbage can liners 80% full of spill material from the area. 	The spill was contained in the easement dirt area, next to the city clean-out. The spill was contained to a 6' x 10' x 2  area; 76.29 gallons. Staff members S35, S33, and S22 removed the spill and affected soil into two 40-gallon garbage containers, that were each 75% full, and disinfected the area. The garbage containers reflected 60 gallons of SSO and soil that were removed from the spill event.  City staff determined that approximately 60 gallons had discharged into the easement using the volume estimation eyeball (complimented by the 40-gallon trash containers) and area/volume methods. The pictures along with the 40-gallon containers support the 60 gallons of spill that was removed. 	Debris-Rags		Lower Lateral		Vitrified Clay		82	The impact of the spill was minimal as it was contained to dirt area in the utility easement.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		The SSO occurred at the lower lateral cleanout for 1116 Cappuccino, in the easement. Staff member S35 arrived to find a city clean out in the utility easement that had overflowed but was not actively flowing. The backup was dispatched as 1117 Paloma but the actual affected lateral was 1116 Capuchino lateral # D5-26407. S35 took pictures of the spill. The spill was not an active overflow, whereas the line was serviced and flow was restored at 3:58pm. Staff members S35, S33, and S22 removed the spill and affected soil into two 40-gallon garbage containers, that were each 75% full, and disinfected the area. The garbage containers reflected 60 gallons of SSO and soil that were removed from the spill event. 	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		Staff inspected the sewer lateral on 8.16.23 and determined that a moderate offset may have contributed to the sewer backup. Staff replaced the lower lateral and riser with 10� of new 4� SDR 26 pipe and new connection to the city main. The construction activities were completed on 8.21.23.		08/14/2023 15:58	The pipe was inspected by CCTV on August 16, 2023. A moderate offset was located. Staff replaced the entire length of the 4  lower public lateral and new connection to 6  sewer main. The offset restricted flow, allowing non-disposable wipes and rags to accumilate.		None at this time, the 4  public lower lateral and riser has been replaced	08/24/2023 16:25														N/A	Repair to pipe noted and conducted.	N/A- Pipe has been replaced.	Sewer lateral wye to wye repair completed on 8.21.23	Replaced moderate offset in pipe 	N/A	replaced pipe	No modification to spill response	None at this time, the 4  public lower lateral and riser has been replaced	
7	7SSO10535	Active	Coachella Valley Water District CS	Coachella Valley WD	889998	1.3	Certified	Luis Torner	Wastewater Operations Manager	23-AUG-23	29-AUG-23	29-AUG-23	Category 2 Spill	Washington SFM SSS- TS Hilary	08/20/2023 15:30	08/20/2023 15:50	08/20/2023 15:00	08/20/2023 16:53	23-5312		See Attachment	33.72883	-116.30392	Force Main	See Attachment		693957	See Attachment	Y	Retention Basin - See Attachment	693000	0			693000	Drainage Conveyance System		Please see attached documentation.	Y	33.72892	-116.30377							08/20/2023 16:38	Please see attached	Volume Formula = 30,925 sq. ft. x 3'(depth of basin) x 7.48 = 693,957 gallons Please see attached	Natural Disaster (specify below)	Increased flows and pressure from hurricane/tropical storm Hilary. 	Force Main		Ductile Iron		30	Please see attached	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Flow was diverted and location of break was isolated. Spill was contained in retention basin and immediately discharged to the sewer system with the use of additional pumping. Areas were cleaned and disinfected after water was captured. See attached documentation for additional detail and information. 	Repaired Facilities or Replaced Defect		Failed wye was replaced. Pipeline was assessed and no further damage was noted. Failure was determined to be due to natural disaster. 	Please see attached documentation for detail of all work completed. 	08/22/2023 17:30	Please see attached report	N												N													
2	2SSO10156	Active	Milpitas City CS	Milpitas City	890014	1.4	Certified	Elaine Marshall	Deputy Public Works Director 	24-AUG-23	30-AUG-23	30-AUG-23	Category 2 Spill	19 Cloud Walk / Moon Shadow Dr	08/13/2023 18:17	08/15/2023 13:10	08/13/2023 08:00	08/18/2023 11:43	23-5272		Overflow was reported to City via mobile app on 08/13/2023. Staff responded on site on 8/15/2023 at 13:10. Staff arrived to find water seeping out of manhole #513 in parking area of Moon Shadow Dr. Very slow overflow observed. Manholes upstream and downstream observed to be flowing. Broke/cleared blockage at 367 ft. north of manhole at approx 14:45. Visual inspection of downstream storm inlet was dry with no indication of flow from SSO. 	37.41682	-121.9021	Gravity Mainline; Manhole	Upon further investigation and review of spill response and photos, staff have re-estimated spill volume to take into account visual observations and diurnal flow pattern of sewer system. Estimate less than 1000 gallons and approximately 412 gallons spilled and recovered. 	slow seepage through manhole cover. 	412	Overflow occurred at manhole #513 in parking area on Moon Shadow Dr by 19 Cloud Walk, Milpitas, CA. Overflow appeared as slow seepage through pickhole of manhole cover. 	Y	Overflow seeping from a pickhole of manhole #513 onto paved parking area next to manhole. Most of liquid stayed within 8ft by 8ft area for parking area around manhole, unknown amount flowed into storm drain adjacent to parking area on Moon Shadow Dr. This is part of the City's storm drainage collection system and which discharges to Wrigley Ford Creek.	362	0			50	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Overflow was reported to City via mobile app on 08/13/2023. Staff responded on site on 8/15/2023 at 13:10. Staff arrived to find water seeping out of manhole #513 in parking area of Moon Shadow Dr. Very slow overflow observed. Manholes upstream and downstream observed to be flowing. Broke/cleared blockage at 367 ft. north of manhole at approx 14:45. Visual inspection of downstream storm inlet was dry with no indication of flow from SSO. 	Y	37.41682	-121.9021							08/15/2023 14:45	Spill volume estimates were calculated based on visual observation of spill flow rate, estimate flow duration (factoring in diurnal collection system flow), field investigation showing that main line only partially blocked (still flow downstream). Updated estimates of spill volume to be approx 412 gallons and much lower than initial estimate of 1650 gallons. 	Spill start time estimate based on reporting party stating spill observed morning of 8/13/23.  27 hrs x 60 min/hr x .25gpm = 412.5 gallons	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline; Manhole		Vitrified Clay		29	Spill pooled in paved area on street and low area around storm drain. Some overflow into storm drain. Staff investigation verified spill did not move to downstream inlet of storm collection system, downstream pump station, and did not reach surface water. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	following clearing of blockage, staff returned and CCTV'd main line. Found root intrusion, cut roots, and CCTV'd again to confirm line clear. 	Staff contain spilled within impacted area, protected storm drain inlet, put down absorbent Staff also investigate downstream storm collection system to verify extent of spill movement (did not move beyond immediate downstream inlet and did not move to downstream storm water pump station or surface waters. Staff confirmed partial blockage and confirm sanitary flow downstream of spill location. Recovered all spill fluid and continued post-response activities (listed in 9.b)	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		CCTV'd line, found root intrusion and look action to cut roots, CCTV's post root cutting to confirm cleared line. This line will also be added to City root foaming and inspection PM Program. 	Root foaming and reinspection scheduled for Feb 2024. 	08/15/2023 22:23	CCTV'd line, found cause to be root intrusion and look action to cut roots, CCTV's post root cutting to confirm cleared line. This line will also be added to City root foaming and inspection PM Program. 	N												N													
4	4SSO10370	Active	Beverly Hills City CS	Beverly Hills City DPW	889841	2.0	Work In Progress			10-AUG-23			Category 2 Spill	630 Mountain Dr	08/07/2023 09:52	08/07/2023 10:11	08/07/2023 09:52	08/07/2023 13:30	23-5038		Spill occurred at a residential zone on Mountain Drive and Sunset Boulevard. Spill occurred on two adjacent manhole nearby the stated location above.  	34.0867	-118.4048	Manhole			1150	The spill occurred at a residential area within the City of Beverly Hills. The spill went to the street, curb and gutter and catch basin.  See Attachment for photos. 	Y	Some of the spill volume entered the catch basin and drained into the storm drain pipes.  The spill volume was recovered at the catch basin and downstream storm drain pipes. 	1150	0			1150	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		The SSO spilled onto nearby curb and gutter, catch basin and stormdrain system within the Beverly Hills boundaries. 	Y	34.08667	-118.40496	34.08662	-118.40519	34.08263	-118.40099			08/22/2023 10:15	City of San Diego Metropolitan Wastewater Department  SSO Estimate Flow Sheet. The estimate reference sheet shows gallons per minute estimate as the SSO discharges from the manhole. 	City staff was informed by another division of the date and time of the spill.  City staff immediately went to the reported location and confirmed the spill.	Debris from Lateral		Manhole		Vitrified Clay	VCP pipe is plastic lined. 	43	Spill went on the street and nearby catch basin.  Spill was recovered in the affected catch basin and storm drain.  Clean up was performed on the street.  There was no road closures and there were no accidents resulting from the spill. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Spill on the street were vacuumed and the streets were cleaned.  Spill that entered the catch basin and storm drain were recovered.  Catch basins are equipped with screens that held a portion of the spill. It was vacuumed out and catch basin cleaned. Remainder of the spill entered the storm drain system.  Staff went approximately 0.5 mile downstream of the storm drain system to recover the remaining spill.  Storm drain system were cleaned as well. 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Will be inspecting sewer line to determine which lateral the debris originated from. The sewer line is plastic lined and no potential for root intrusion	The City will be performing CCTV inspection to determine which lateral the debris came from. The City will educate the property owner to coordinate future work to prevent a blockage occurring the sewer main. 	City staff performed spill response, recovery and cleanup on 8/7/2023.  Tasks were completed around 15:00 hrs. Sewer restored to normal flow. Catch basin was cleaned up by 12:00 PM and storm drain cleanup was completed by 15:00 hrs.  	08/07/2023 15:00	The affected sewer main is plastic lined. Therefore, root intrusion cannot be a probable cause of the blockage.   CCTV investigation may determine which lateral connection pushed the debris to the sewer main. 	N												N													
5S	5SSO11001	Active	Modesto CS	Modesto City	890022	1.2	Certified	Robert Englent	Wastewater Collection System Superintendent	24-AUG-23	01-SEP-23	01-SEP-23	Category 2 Spill	1104 Blackwood Pl.	08/23/2023 11:33	08/23/2023 12:08	08/23/2023 11:31	08/23/2023 14:51	23-5397		Manhole SS009081 (37.65663 N, -120.94622 W) Manhole SS009097  Lower lateral cleanout located at 2617 Surrey Ave. Asset ID: SS032571	37.65663	-120.94622	Lateral Clean Out (Public); Manhole	N/A	Manhole SS009097 Located at 1104 Blackwood Dr. was the first appearance point. Manhole SS009081 was closest to the failure point. Lower lateral cleanout located at 2617 Surrey Ave. was the third appearance point.	1039	Spill from MH SS009081 and Cleanout located in front of 3617 Surrey Ave. went down curb and gutter and entered storm conveyance system at catch basin SD002647 going through multiple gravity storm lines ending up in gravity storm MH SD022861 Spill from MH SS009097 did not reach storm conveyance system and stayed contained in the curb and gutter on Blackwood PL. between 2633 Marblehead CI and 2632 Portsmouth Ln.	Y	Gravity storm lines 	600	0			1039	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		see attached method of calculation 	Y	37.65848	-120.94492	37.65658	-120.94701					08/23/2023 12:18	Contained volume estimation and used GIS information for storm pipe sizes.	see attached method of calculation 	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		50	100% spill recovery.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System	Used vacuum trucks to wash and vacuum affected areas of curb, gutter and street. Vacuumed downstream storm line MH while another vacuum truck cleaned and vacuumed the affected storm lines.	Sandbagged storm catch basin to prevent further sewer contamination into storm system. Set-up a vacuum truck at the furthest downstream storm MH where sewer was detected. Used vacuum truck to break stoppage and clean the sewer line. Cleaned all upstream storm lines up to the point of the affected catch basin. Washed and vacuumed street, curb and gutter. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Adjusted cleaning PM from 3 years to 6 months.  Created root treatment PM. 	6 month cleaning PM. The next cleaning will occur on or about 02/23/2024. Root treatment to occur on or around 09/12/2024.	Line segment cleaning 02/23/2024 Root treatment 09/12/2024	08/23/2023 16:13	After cleaning line segment SS010509 CCTV crew found light roots at a couple of joints. There were also light roots at the stoppage location.	N												N													
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	890028	1.2	Certified	Kent Vian	Asst. Deputy Director	24-AUG-23	11-SEP-23	11-SEP-23	Category 1 Spill	690 66th St.	08/23/2023 20:09	08/23/2023 20:40	08/23/2023 20:09	08/23/2023 20:31	-		Spill came out of manhole in front of 690 66th St. and traveled south to storm drain and continued south to a conveyance channel on 66th and akins 	32.71296	117.05608	Manhole	n/a	n/a	975	ASPHALT ROAD OUT OF MANHOLE INTO STORM DRAIN JUST SOUTH OF MANHOLE AND SOUTH ON 66TH STREET IN STORM DRAIN TO CONVEYANCE CHANNEL ON 66TH AND AKINS THAT TRAVELS EAST AND WEST.	Y	the conveyance channel is located south of spill the inlet is located at the intersection on 66th and akins	0	450	came out of manhole located in front of 690 66th st	500	75	Drainage Conveyance System	Spill entered manhole in front of 690 66th St and entered conveyance channel on 66th and Akins	Spill entered manhole in front of 690 66th St and entered conveyance channel on 66th and Akins.	Y	32.71114	-117.05574							08/23/2023 21:08	visual calculated method.	visual calculated method.	Debris-Rags; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		71	Entered storm drain conveyance system.	N	Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Set up containment relieved stoppage tracked final destination cctv sewer main cleaned up affected areas.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Adjust maintenance schedule evaluate pipe after cctv.	none	08/25/2023 10:35	Upon further investigation notified consumer in the area city of san diego fog program.	N			none	Other (specify below)	drainage channel		none	Other (specify below)	no public access	san diego county health	0	N	N												
2	2SSO10164	Active	Palo Alto Regional CS	Palo Alto City	890031	1.3	Certified	Anthony Meneses	WGW Operations Manager		18-SEP-23	18-SEP-23	Monthly Category 3 Spill	546 Oxford Avenue	08/17/2023 08:23	08/17/2023 08:34	08/17/2023 08:04				See pictures in attachments	37.4265617	-122.1489194	Lateral Clean Out (Public)			123	See pictures in attachments	N						119	Street/Curb and Gutter (2 3)		37.4269581, -122.1485858	Y	37.4269581	-122.1485858							08/17/2023 09:10	Measured volume method: 206'x1'x0.08 = 16.48 cubic feet 16.46 cubic feet x 7.48 gallons = 123 gallons  	Assumption = Lost 4 gallons to evaporation 	Root Intrusion		Gravity Mainline		Other (specify below)	Polyethylene (PE) Pipe	26	N/A	N	Cleaned Up (specify below); Contained All or Portion of Spill		Absorbent and hauled away 	Inspected Sewer Using CCTV to Determine Cause		Lateral is on preventative maintenance program. Mainline was hydroflushed. 		08/17/2023 10:34	A follow up CCTV inspection was performed 8/30/23, the inspection uncovered an eighty-foot-long sag that starts six feet from the emergence point of the spill at 542 Oxford. The sag does hold grease. The inspection did not uncover any signs of roots that was the cause of the stoppage that caused the overflow August 17, 2023. 		mainline CCTV inspection	08/31/2023 16:00														N/A	Shorten duration between main flushings		no replacement scheduled. Pipe was installed in 1997. 	CCTV inspection scheduled SO # 202308-395	N/A		Shorten duration in between inspection 	mainline CCTV inspection	
2	2SSO10096	Active	Berkeley City Public Works CS	Berkeley City of Public Works	890035	1.3	Certified	Jesus F Sandoval	Public Works Senior Supervisor		17-DEC-23	17-DEC-23	Monthly Category 3 Spill	2380 Shattuck	08/23/2023 09:00	08/23/2023 09:10	08/23/2023 08:45				See attachment: https://cityofberkeley-my.sharepoint.com/:i:/r/personal/dmontes_cityofberkeley_info/Documents/Pictures/2380%20shattuck%20ave.jpg?csf=1&web=1&e=zrypi9   	37.86646	-122.26771	Manhole			50	Street curb and gutter 	N						50	Street/Curb and Gutter (2 3)		Street Curb and Gutter										08/23/2023 08:45	San Diego Chart	San Diego Chart	Debris-General; Other (specify below)	Contractor left a  air Blatter in the main when they built  the main side of the building and forgot about it.	Force Main; Manhole		Cross-Linked Polyethylene (PEX)		15	No impact	N	Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		We use a combination truck to wash down the affected area to recover sewer spill and returned it to the sewer system.	Other (specify below)	remove the Blatter that was blocking the main and vacuum with the combination truck	None		08/23/2023 09:45	We Founded a air Blatter blocking the main line at the beginning of the line.  		No	08/23/2023 09:45														No	N/A	N/A	N/A	N/A	N/A	N/A	N/A	No	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	890038	1.3	Certified	Ameal McLaurin	Sewer Supervisor 2	25-AUG-23	05-SEP-23	05-SEP-23	Category 1 Spill	3775 Alameda Avenue	08/23/2023 16:17	08/23/2023 18:30	08/18/2023 12:00	08/23/2023 19:43	23-5402		2 lateral clean outs (Private) that belong to the same building.	37.76751	-122.22482	Lateral Clean Out (Private)	2 lateral clean outs (private) that belong to the same building.	N/A	23400	The spill was extended into the parking lot entering into the storm drains (Sausal Creek) that flows into tidal canal to the S.F Bay	Y	The spill was extended into the parking lot entering into the storm drains. located in the parking lot.	0	0	The spill was extended into the parking lot entering into the storm drains (Sausal Creek) that flows into Tidal Canal to the S.F Bay from that came from the 2 c/outs in the parking lot.	23400	0	Drainage Conveyance System that discharges to surface water		23,400 gallons spilled from two private sewer laterals. Vandalism was the cause of the overflow. Clothing and debris were dropped in a manhole causing the obstruction.	Y	37.76751	-122.22482							08/23/2023 22:00	Volume estimations were based on the eyewitness account.	1440 minutes x 5 days = 7200 minutes + 10 hrs. x 60 minutes = 600 minutes. for total 7800 minutes. 7800 minutes x 3 gpm = 23,400 gallons	Vandalism (specify below)	Unhouse unknown people dumped materials inside the Maintenance Hole.	Gravity Mainline		Vitrified Clay		90	23,400 gallons spilled from two private sewer laterals. Vandalism was the cause of the overflow. Clothing and debris were dropped in a manhole causing the obstruction. Sewage spilled into a private storm system into, Tida Canal to San Francisco Bay.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow	Staff vacuumed, removed rags and debris, and washed down affected areas. 	Staff vacuumed, removed rags and debris, and washed down affected areas. 	Added Sewer to Preventive Maintenance Program	The condition of the pipe was in good condition based on the CCTV footage. Line will be placed on a six-month high frequency cleaning.	Main failure was not the cause of the overflow. Vandalism was the cause.  Line will be placed on a six-month high frequency cleaning.	Main failure was not the cause of the overflow. Vandalism was the cause.  Line will be placed on a six-month high frequency cleaning.	08/23/2023 22:00	CCTV inspection was completed, pipe was found in good condition. 	N			Tiday Canal to San Francisco Bay	Estuary			None observed..	Other (specify below)	Area was posted were sewage entered the water way. 	N/A	0	Y	N												
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	890057	1.4	Certified	Kent Vian	Asst. Deputy Director	28-AUG-23	31-AUG-23	31-AUG-23	Category 1 Spill	NOT# 40201001630 20278 LAKE DR.	08/23/2023 10:00	08/23/2023 10:30	08/23/2023 10:25	08/24/2023 13:54	23-5426		THE SPILL APPEARANCE POINT WAS APPRROXIMATELY 200' NORTH OF 20278 LAKE DR. ESCONDIDO CA, 92029.	33.08095	-117.11484	Force Main	N/A	NONE	13433	AFTER THE ORGIN OF THE SPILL APPEARANCE POINT, SEWER WENT INTO A DRAINAGE CONVEYANCE CHANNEL THAT WAS TRIBUTARY TO AN UN-NAMED CREEK AND SOAKED INTO THE GROUND APPROXMENTLY 1500' BEFORE LAKE HODGES.	Y	THE INITAL DRAINAGE CONVEYANCE CHANNEL WAS DRY, BACK FILLED WITH (RIP-RAP) ROCKS, THAT WAS TRIBUTARY TO A UN-NAMED CREEK.	3000	10433	THERE WAS NO DISCHARGE POINT TO SURFACE WATERS FOR THIS SPILL.  	0	0	Drainage Conveyance System; Paved Surface; Unpaved Surface	N/A	THE SPILL ORIGINATED FROM AN UNDERGROUND FORCED MAIN.(COORDINATES 1.D & 1.E) SEWER WAS SEEPING OUT OF THE SIDE OF LAKE DR. HEADING SOUTH AND ENTERING A DRY DRAINAGE CONVEYANCE SYSTEM (COORDINATES 1.F & 1.G) THAT LEADS A DRAINAGE CONVEYANCE SYSTEM WITH RUNNING WATER (COORDINATES 1.H & 1.I) THAT CONTINUED SOUTH AND SOAKED INTO THE SOIL (COORDINATES 1.J & 1.K) 2000' BEFORE LAKE HODGES.	Y	33.08112	-117.11484	33.08017	-117.11499	33.08018	-117.11461	33.0758	-117.11547	08/24/2023 12:15	CITY ENGINEERS DEVELOPED A FLOW MODEL CHART TO DETERMAIN THE SPILL VOLUME TOTAL OF 13,433 GALLON SPILLED AND 3000 GALLONS RECOVERED BASED ON THE COMBO TRUCKS CAPACITY (1000 GALLONS) TIMES 3 TRIPS.	UPON INITAL ARRIVAL ON 8/23, PUMP CREWS OBSERVED NO SPILL. VISUAL SPILL OBSERVATION WAS AT 10:25 AND CONTAINED AT 10:32.  FLOW WAS INTERMEDIATE DUE TO SEWER PUMP STATION 77 OPERATION.	Pipe Structural Problem/Failure - Installation	N/A	Force Main	N/A	Ductile Iron	N/A	51	THERE WAS A ROAD CLOSURE ON LAKE DR. BETWEEN VIA RANCHO PKY. & ASH LN. NO VISUAL IMPACTS TO THE CONVEYANCE CHANNEL.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	8/23/2023-UPON THE ARRIVAL OF THE COMBO TRUCK, CREWS SET UP THE VACUUM TO CONTAIN SEWER AT THE SPILL APPEARANCE POINT WHILE A 2ND COMBO TRUCK VACUUMED WHERE SEWER WAS GOING INTO THE DRAINAGE CONVEYANCE CHANNEL. CREWS WASHED DOWN AND CAPTURED SEWAGE THAT RAN DOWN LAKE DR. 8/24/2023- CONSTRUCTION CREWS WERE REMOVING THE CONCRETE ENCASING AROUND THE FORCED MAIN WHEN THE MAIN FAILED. A COMBO TRUCK ON SITE CONTAINED WHILE MORE TRUCKS WERE CALLED TO ASSIST IN CONTAINMENT AND CLEAN UP.  COMBO TRUCKS SET UP THE VACUUM TO CONTAIN AT AN ARIZONA CROSSING ON A PRIVATE RD.	Repaired Facilities or Replaced Defect	N/A	SPILL CORRECTIVE ACTION WAS CONSTRUCTION CREWS RESPONDED AND MADE REPAIRS TO THE FORCE MAIN AND ENCASED IT FOR ADDED PROTECTION.	REPAIRS WERE COMPLETED ON 8/25/2023.  THE FORCED MAIN WAS ENCASED AND PRESSURE TESTED ON 8/26/2023.  LAKE DRIVE WAS RE- OPENED ON 8/27/2023 AT 13:00.	08/27/2023 13:00	UPON INVESTIGATION CREWS FOUND A CRACK IN THE ELBOW OF THE FORCED MAIN WHERE SEWER WAS LEAKING.	N	N/A		N/A	Other (specify below)	SEWER DID NOT REACH A RECIEVING WATER BODY.		SEWER DID NOT REACH LAKE HODGES AND THERE WAS NO VISUAL IMPACTS TO AQUATIC LIFE.	Other (specify below)	THERE WERE NO PUBLIC ACCESS IMPACTS.	N/A	0	N	N	N/A	N/A									N/A	
2	2SSO10104	Active	Ccsf - San Francisco Airport CS	CCSF - San Francisco Airport	890074	1.5	Certified	Jennifer Acton	Director of Maintenance		30-AUG-23	30-AUG-23	Monthly Category 3 Spill	Gate G3 Pedestrian Breezeway	07/11/2023 20:25	07/11/2023 20:30	07/11/2023 20:20				Sewage overflowed from one lateral cleanout onto a paved surface area and affected one nearby storm drain catch basin.  See photos	37.61743	-122.39094	Lateral Clean Out (Public)			92	Sewage overflowed from one lateral cleanout onto a paved surface area and affected one storm drain catch basin.  The walkway used by Airport and Tenant employees was also impacted.  See photos.	Y	storm drain catch basin flows to pump station that can be isolated and diverted to Mel Leong Treatment Plant.	48				92	Other (specify below); Paved Surface	Storm drain catch basin	Sewage overflowed from one lateral cleanout, flowed onto the paved surface and affected one storm drain catch basin.  See photos.	Y	37.61743	-122.39094							07/11/2023 21:06	Flow rate and total volume estimated by responding Airport spill team member using eye ball estimation and incident times.	Spill details, Information and times provided by responding Airport Airfield Safety Operations and Spill Team. 	Debris-General		Lower Lateral		Ductile Iron		44	Spill impacted the paved ground surface around the spill appearance point, temporarily altering the normal pathway for pedestrians walking in the area until the area was cleaned.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	applied absorbent to protect storm drain catch basin	Airport Emergency Communications dispatched Airfield Safety Operations, Fire Department, Facilities and Spill Team.  Absorbent material was deployed to prevent additional sewage from entering the storm drain catch basin.  Scrubbing machine was used to clean the affected paved surface.  Airport Plumbers flushed the affected storm drain catch basin using potable water and captured the rinse/wastewater at the downstream sanitary manhole using a vacuum truck.  All wastewater was returned to the sanitary sewer system for processing.	Adjusted Schedule/Method of Preventive Maintenance		Preventative maintenance scheduled to be performed monthly includes hydrojetting of lower lateral drain line.  The Airport has posted signage inside the restrooms to help prevent travelers from flushing non-dispersibles.  		07/12/2023 08:25	Airport Plumbers used a drain snake to clear the blockage in the drain line, blockage was caused by general debris build up and eventual backup. 		As needed	07/12/2023 08:25														N/A	N/A	N/A	N/A	N/A   	N/A	N/A	N/A	As needed	
5F	5SSO11068	Active	Tuolumne CS	Tuolumne City SD	890083	1.1	Certified	Ben Kikugawa	CPO/LRO		29-AUG-23	29-AUG-23	Monthly Category 3 Spill	Trench Plated Open Pit	08/28/2023 13:35	08/28/2023 13:44	08/28/2023 03:37				Spill appeared out from under trench plates covering a pit where sewer construction is taking place.	37.96411	-120.23392	Gravity Mainline			150	Spillage travelled westward across Cedar Street to an unpaved surface. impacted area was no more than 40 ft. by 40 ft.	N						0	Unpaved Surface		Spill travelled across a paved road and partially saturated an unpaved surface adjacent to the road. 	Y	37.96412	-120.23397							08/29/2023 07:25	Visual observations were primarily used. Operators determined a spill rate of 0.5 gallons per hour upon initial arrival; however, that flow rate increased by the following morning. That morning, the third party contractor arrived on site before operators did at 0700 hours and began vacuuming out the pit before operators could get an updated spill rate.   Operators are well trained in estimating spill volume over paved surfaces. The thirteen lateral connection count, extent of impacted area, and visual observations were all considered in estimating spillage volume. The reported 150 gallons is a conservative estimation where the lower estimation would be approximately 120 gallons.	Operators were on site twice from the time of initial notification to the time spillage stopped. The first time operators were on scene found a spill rate of 0.5 gallons per hour. The second time staff arrived on scene the spill had ceased due to the contractor vacuuming out the pit where the spill originated. Because of the lack of flow rate data, an exact spill estimation could not be determined.  	Construction Diversion Failure		Gravity Mainline		Vitrified Clay		72	Roughly 90 percent of the spill impacted a paved roadway. The remaining ten percent travelled off the roadway into an unpaved area. No sewer solids were observed at any point during mitigation efforts. The impacted roadway was pressured washed by the contractor followed by operators disinfecting all areas with E-SAN 205 disinfectant.  Nearby residents were notifed to keep pets and children out of the impacted area followed by 24 hours of contact time with the disinfectant. 	N	Mitigated Effects of Spill (specify below)		No solid sewer debris was present. The roadway was pressure washed and disinfected. No spillage volume was puddled and no spillage recovery resulted.	Other (specify below)	Directed third-party contractor to always backfill/support when temporarily connecting to an old pipe that have differing elevations.  	Investigatory efforts by the District uncovered that the third party contractor who is performing a sewer renovation project for the District installed a temporary connection tying a new mainline onto an existing clay pipe. The pit was left open with out backfill, this did not prove the needed support for the old pipe, and, as a result the clay pipe broke off entirely. This method the contractor used will be corrected in the general specifications during the next sewer renovation project.		08/29/2023 09:25	The current Collection System Improvement Project calls for new mainlines to be deeper than existing mainlines. During the course of construction the contractor has to keep old and new sewer pipes intact. When construction ends in a particular location that is not completed the contractor will install a temporary drop connection, connecting the high existing mainline to the new lower mainline. This temporary connection was not supported in an y manner, such as backfill. As a result, the weight of the two pipes was more than the old VCP could hold and, consequently broke off in the trench. The trench was covered with trench plates and could not be removed with equipment staff had on hand. The contractor had to be called in to assist with removing the trench plates.  		No further investigating efforts will be undertaken by the District.	08/29/2023 10:40														Not applicable	The contractor's methodology of making the temporary new to old mainline connection will be addressed in the standard specifications by the District's Engineering Dept. before the next phase of construction begins.	Not applicable	Scheduled to be replaced tomorrow, 30 August 2023.	Not applicable	The old VCP is scheduled to be replaced tomorrow, 30 August 2023.	The current sewer renovation project is funded through SRF with the Waterboards. It is required to submit a Completion Report following project completion. That report will include As-built drawings showing the section of failure had been replaced.	Sewer responses were limited due to the contractor's trench plate covering the location of failure. Operators did attempt to hydro-jet through a downstream manhole with no success. However, after seeing he cause of the failure, no hydro-jetting efforts would have alleviated the failure. The third-party contractor arrived on site first thing the following morning and corrected the failure. 	No further investigating efforts will be undertaken by the District.	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	890084	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		27-MAR-24	27-MAR-24	Monthly Category 3 Spill	1825 North Laurel Canyon Boulevard 	08/26/2023 11:50	08/26/2023 12:45	08/26/2023 11:50				The initial crew arrived at 12:45P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.104444	-118.366244	Manhole			905	None Taken.	Y	The  back up amount entered an adjacent City of Los Angeles catch basin, the crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	905				905	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	It was estimated that approximately 905 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.  		34.104444	118.366244							08/26/2023 11:59	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.	Spill flowrate and volume determination based on flow from around the ring of a MH cover 	Root Intrusion		Gravity Mainline		Concrete		95	It was estimated that approximately 905 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		On Saturday, August 26, 2023 at 11:50 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1825 North Laurel Canyon Boulevard (TG 593-A4). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. A City contractor removed the blockage, and the backup ceased at 11:59 AM. The cause of the blockage was root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 905 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. A City contractor removed the blockage, and the backup ceased at 11:59 AM. The cause of the blockage was root intrusion.		08/26/2023 11:59	The cause of the blockage was root intrusion.		None At This Time.	08/26/2023 11:59														Not At This Time	None At This Time.	None At This Time.	Several Private Property House Connection Repaired.	Several Private Property House Connection Repaired.	None At This Time.	None At This Time.	A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. A City contractor removed the blockage, and the backup ceased at 11:59 AM. The cause of the blockage was root intrusion.  It was estimated that approximately 905 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.  	None At This Time.	
2	2SSO10104	Active	Ccsf - San Francisco Airport CS	CCSF - San Francisco Airport	890085	1.1	Certified	Jennifer Acton	Director of Maintenance		31-AUG-23	31-AUG-23	Monthly Category 3 Spill	Gate F5	07/13/2023 07:35	07/13/2023 07:40	07/13/2023 07:30				Spill occurred on the airfield ramp near Boarding Area F Gate F5.  Sewage overflowed from multiple appearance points;  one grease interceptor and two sewer cleanouts.	37.61973	-122.38698	Lateral Clean Out (Private); Other (specify below)	In-ground grease interceptor	Sewage appeared from one grease interceptor and two lateral cleanouts	238	Spill area included the paved surface next to Gate F5 and the paved surface area immediately south of the appearance points.	Y	Storm drain catch basin flows to pump station that can be isolated and diverted to Mel Leong Treatment Plant. Sewage entered one storm drain catch basin but did not flow beyond the downstream catch basin after further investigation and observations by responding airport personnel on scene.  	52				238	Drainage Conveyance System; Paved Surface	Paved surface and storm drain catch basin	Sewage overflowed from three appearance points and flowed south towards a down gradient storm drain catch basin.  Some sewage entered one storm drain catch basin.	Y	37.619739	-122.386981	37.619528	-122.386674					07/13/2023 08:41	Responding Airport Spill Team members on scene observed sewage flowing into the storm drain catch basin at approximately 1gpm from visual/eyeball estimation.  Detailed incident information and times was provided to assist with calculated volume.  Field measurements were used to perform Area/volume calculations to assist with determining total spill volume and/or approximately how much sewage entered the storm drain catch basin.	Incident details and information, including estimated incident times and/or assumptions, were determined using information provided by Airfield Safety Operations, responding officers and responding Spill Team.	Debris-General; Debris-Rags; Debris-wipes/Non-disposables		Lower Lateral		Ductile Iron		22	Spill impacted the paved surface on the ramp area and affected one storm drain catch basin.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	Absorbent material applied around storm drain catch basin to prevent additional sewage from entering.	Airport Emergency Communications dispatched Airfield Safety Operations, Fire Department, Facilities and Spill Team to the incident.  Absorbent material was placed around the affected storm drain catch basin to prevent additional sewage from entering.  Plumbers snaked and hydrojetted the sewer drain to remove the blockage and to return flow.  Scrubbing contactor arrived on scene and cleaned the affected ground surface.  Plumbers used approximately 500 gallons of potable water to flush the affected storm drain system and captured all wastewater at the downstream catch basin.  All wastewater was returned to the sanitary sewer system for processing.	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below)	Tenant increased the frequency of regular service/pump out of the grease interceptor.  BPPP Team performs follow up inspections of the grease interceptor.	Tenant increased the frequency of regular service/pump out of the grease interceptor.  Environmental Operations Team performs follow up inspections of the grease interceptor.		07/13/2023 11:00	Plumbers used the drain snake and hydrojetter to remove the blockage and return flow to the drain line.  Plumbers removed and identified rags, wipes/non-dispersibles and general debris as the cause of the backup.		Follow up inspections of grease interceptor performed by Environmental Operations Team	07/13/2023 09:30														N/A	N/A	Grease interceptor service frequency increased.	N/A	N/A	N/A	N/A	N/A	Follow up inspections of grease interceptor performed by Environmental Operations Team	
9	9SSO11209	Active	Carlsbad City CS	City of Carlsbad	890086	1.3	Certified	Vicki V. Quiram	Utilities Director	29-AUG-23	13-SEP-23	13-SEP-23	Category 1 Spill	Park Dr and Kelly Dr	08/24/2023 21:25	08/24/2023 21:45	08/24/2023 21:15	08/24/2023 23:06	23-5435		The spill originated at manhole 17D-8, in the intersection of Park Dr and Kelly Dr. 	33.14646	-117.31071	Manhole	n/a	n/a	4250	The spill exited the manhole and flowed to the end of the street in an area about 20� wide to a depression with ponded water.  The depression is a large scour hole at the end of a drainage channel that has standing water that is blocked from flowing by thick vegetation and sediment. 	N	n/a			The wastewater flowed to the end of the street and entered a large scour hole that was blocked from flowing by thick vegetation and sediment. There has been standing water at that location according to a neighboring resident. The wastewater entered the standing water in the depression and stayed contained in that location. 	4250	4250	Surface Water		The spill entered a depression at the end of a drainage channel that is blocked from flowing by heavy sediment and vegetation. There is a short dirt area and a large scour hole with standing water. The wastewater flowed from the street onto the dirt area and entered and stayed in the depressed area. Staff investigated and there was no flow out of the depressed ponded area. 	Y	33.14646	-117.31071							08/24/2023 22:40	The spill volume was calculated using a picture of the spilling manhole and comparing it to the City of San Diego�s Reference Sheet for Estimating Sewer Spills. Staff determined that the rate of flow that was spilling from the manhole was about 50 gallons per minute and the time spilling.  The removed volume was based on the amount and volume of the vactor tanks filled. 	�The start time was estimated based on talking to the witness who reported it. She was able to recall what the manhole looked like when it was spilling and how much of the pavement was wet.    Staff used that information to determine an estimated start time. �The end time was based on the actual time that the crew got a vacuum truck set up at the manhole and stopped it from spilling.	Debris from Construction		Gravity Mainline		Vitrified Clay		42	The spill was contained to a small area of pavement and a large scoured out depression that is blocked from flowing due to sediment and vegetation. 7200 gallons, or 1.5 times the spill amount, were removed from the depression. Additionally, it occurred late at night when there was little traffic and the street was cleaned off and washed down before the crew left the site. There was no observed impact.	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		The call came in after hours. A duty person was dispatched. When the spill was confirmed two vacuum trucks were on site within 45 minutes. One truck set up at the manhole that was spilling and stopped the spill immediately. The other truck went to the manhole downstream to break the blockage, clearing it within 5 minutes. The crew saw a corrugated pipe pass by the downstream manhole but was unable to capture it. Once the blockage was cleared, a crew removed 3600 gallons from the depression. The other crew went downstream and attempted to locate the pipe but were unsuccessful. The wastewater was flowing normally and they decided to come back in the morning. Staff washed down the asphalt and recaptured the water. In the morning staff went back to the spill site. The water in the depression was the same level as the night before and was not moving. An additional 3600 gallons of water was removed. Staff then found flexible pipe that had caused the spill downstream and removed it.	Other (specify below)	See section 10.b	The pipe that caused the spill is suspected to have come from a sewer construction project that had been occurring on the same street. Engineering staff have talked with Construction Management and Inspection staff to make them aware of the incident and have requested more rigorous inspections when construction work is in or near a sewer main. Staff will be discussing the issue with the contractor that concluded the recent project to at a minimum provide education and so that this does not happen in the future.	none	08/25/2023 17:00	The blockage was caused by a flexible pipe that is suspected to be construction debris, and staff was able to find it and remove it. (see attachment) Once it was removed from the sewer system, Engineering staff started looking at inspection logs from a sewer construction project that was in progress on the same street as the blocked sewer main. Staff determined from pictures of the construction work that the contractor used similar pipe for a flow-through plug for manhole rehabilitation work that occurred the week after the spill and surmised that the same pipe could have been used in the weeks prior to the spill even though there were no photos of the earlier work that showed the pipe.  	N			unnamed tributary to Agua Hedionda Creek	Other (specify below)	The spill went into a large scour hole at the end of a drainage channel. The scour hole is blocked by sediment and heavy vegetation from flowing into a creek tributary. The water did not leave the contained area and did not reach the creek tributary.		No observed impacts on aquatic life.	Other (specify below)	There were no public access impacts.	n/a - no closures or restricted use occurred	0	N	N												
8	8SSO10574	Active	Garden Grove City CS	Garden Grove Sanitary District	890087	1.1	Certified	William Murray	Public Works Director		26-SEP-23	26-SEP-23	Monthly Category 3 Spill	Yorkshire and Mac Duff	08/29/2023 17:30	08/29/2023 17:50	08/29/2023 16:30				District manhole #10295 on Yorkshire Avenue just east of Mac Duff Street. 	33.792466	-117.980076	Manhole			122	District manhole #10295 overflowed into the curb and gutter on the south side of Yorkshire Ave. and headed west towards Mac Duff St. The overflow then went north towards an inlet on the northeast corner of Mac Duff and Yorkshire. Approximately 75 gallons entered the nearby storm channel and was recovered downstream on Dale. 	Y	The spill entered the Anaheim Barber City Channel. This channel flows into the Bolsa Chica Channel and then into Huntington Harbor. 	75				122	Drainage Conveyance System; Street/Curb and Gutter (2 3)		Crews set up a District combination truck on Dale Street and began to vacuum up the overflow until it was completely recovered. 		33.789907	-117.98425							08/29/2023 19:30	The overflow was calculated using an OCSD pick hole overflow chart. The manhole had one 3/4 inch pick hole overflowing 1/4 inch high. This equals (1.02 gal/min). This rate was multiplied by the (120 minutes) of overflow. This equals (122.4 gal, rounded to 122 gal). (1.02 gal/min x 120 min = 122.4 gal, rounded to 122 gal).	District crews could not find any witnesses who could help determine an exact overflow start time. The original spill call was received at 5:30 PM. The spill must have started prior to the call. The District has determined the start time to be 4:30 PM. 	Debris-Rags; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		69	The spill reached the curb and gutter on Yorkshire. The overflow entered the storm channel through an inlet on the corner of Yorkshire and Mac Duff. Crews washed and vacuumed the spill area. Crews set up a combination truck in the storm channel downstream and recovered all of the spill from the storm drain system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Crews responded to a manhole overflow on Yorkshire just east of Mac Duff. District manhole #10295 was overflowing into the curb and gutter and flowing towards a storm drain inlet on the corner of Yorkshire and Mac Duff. A District combination truck was set up at manhole #10308 and began to hydro jet the line to clear the blockage. A flush-able wipe/grease blockage was cleared at approximately 20 feet upstream of the manhole at 6:30 PM. Approximately 75 gallons of overflow had entered the storm drain inlet and entered the storm channel. The spill was chased downstream and crews were able to set up a combination truck on Dale and crews began to vacuum up the channel in order to recover all of the overflow. The spill area was then washed and vacuumed. Crews decanted the waste and wash water into the sewer system. 	Other (specify below)	A Smart Cover monitoring system will be installed to notify the District of backups in this line.	A Smart Cover monitoring system will be installed to alert the District of backups. The District will use the data to determine if the maintenance schedule needs to be adjusted.		08/30/2023 08:22	Crews hydro jetted pipe #3883 and cleared a FOG/Rag blockage at approximately 20 feet upstream of District manhole #10308. Crews pulled back a ball of disposable wipes covered in grease. There is a siphon in this line that flows underneath a storm drain. It is cleaned every 3 months. 		Pending review of Smart Cover data.	08/30/2023 08:57														This information will be given to the Garden Grove Environmental Management Team. They will be informed that FOG and disposable wipes caused the blockage.	A Smart Cover monitoring system will be added to the line. This will warn the District of repeated occurrences and will help determine if the maintenance schedule needs to be adjusted. 	This will be determined when the data from the Smart Cover is reviewed.	This line is cleaned every 3 months because of a siphon underneath a storm drain. 	None planned.	None planned.	Pending installation of Smart Cover.	Pending review of Smart Cover data.	Pending review of Smart Cover data.	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	890088	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		27-MAR-24	27-MAR-24	Monthly Category 3 Spill	2600 North Franklin Canyon Drive	08/29/2023 13:58	08/29/2023 15:56	08/29/2023 13:58				The initial crew arrived at 3:58P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.126003	-118.410392	Manhole			367	Sanitary Sewer Overflow Report	N		0				0	Other (specify below)	The entire back up amount soaked into the ground.	34. 123003  118.3410392										08/29/2023 19:58	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.	Spill flowrate and volume determination based on flow from around the ring of a MH cover. 	Root Intrusion		Gravity Mainline		Vitrified Clay		83	It was estimated that approximately 367 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.   	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		On Tuesday, August 29, 2023 at 1:58 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 2600 North Franklin Canyon Drive (TG 592-E1). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 7:12 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 367 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.    	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Pipeline Was Spot Repaired on October 18, 2023.		08/29/2023 19:12	A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 7:12 PM. The cause of the blockage was attributed to root intrusion		Not At this Time	08/20/2023 21:35														Not At This Time.	Pipeline Was Spot Repaired on October 18, 2023.	None At This Time.	Pipeline Was Spot Repaired on October 18, 2023.	Pipeline Was Spot Repaired on October 18, 2023.	Not At This Time.		On Tuesday, August 29, 2023 at 1:58 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 2600 North Franklin Canyon Drive (TG 592-E1). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 7:12 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 367 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.     Pipeline Was Spot Repaired on October 18, 2023.	Not At this Time	
2	2SSO10104	Active	Ccsf - San Francisco Airport CS	CCSF - San Francisco Airport	890090	1.1	Certified	Jennifer Acton	Director of Maintenance		31-AUG-23	31-AUG-23	Monthly Category 3 Spill	SFO Gate F5	07/16/2023 18:20	07/16/2023 18:30	07/16/2023 18:00				Spill appearance point at 2 adjacent sewer cleanouts near Gate F5 flowing across asphalt pavement	37.61971	-122.38694	Lateral Clean Out (Public)		2 adjacent public lateral cleanouts	79	Photos of extents of surface pavement affected by SSO	Y	Storm drain catch basin flows to pump station that can be isolated and diverted to Mel Leong Treatment Plant. Spill entered storm drain catch basin and did not naturally reach downstream manhole.	44				79	Drainage Conveyance System; Paved Surface		SSO covered asphalt and separate storm drain catch basin	Y	37.61984	-122.387	37.61955	-122.38655	37.61937	-122.38665	37.6198	-122.387	07/16/2023 20:36	Pavement: Total spill area was estimated using CAD from pictures of the event. Depth of sewage on asphalt estimated as 1/64 .  Within Drainage Conveyance System: <5gallons seen visually upon arrival.  Spill protection holding all but less than 1qt/min dripping into CB for approx 156min.	Pavement: area x depth. Assume average depth 1/64 .  Within CB: volumetric flow rate x time. Assume flow rate 1qt/min. Assume spill time based on 20 min before initial call to start of surface scrub.	Fats, Oil and Grease (FOG)		Lower Lateral		Ductile Iron		22	Pavement and CB impacted by SSO. All impact was mitigated through cleanup.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	Absorbent material used to protect the down gradient storm drain catch basin	Catch basin protected with absorbant barrier. Pavement scrubber captured additional flow and cleaned pavement.	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below)	Tenant increasing frequency of regular grease interceptor service	Cleanouts both jetted to remove blockage in pipeline. Increased regular maintenance of upstream grease interceptor. Increased inspection of grease interceptor. Jetting from previous SSOs did not use correct cleanout to clear blockage as far as necessary. GIS to be updated to reflect correct system.		07/17/2023 00:10	Investigation determined cause of SSO was FOG blockage. Previous recent SSOs at this location did not use cleanout hidden beneath k-rail and could not reach full extent of blockage; this event was able to move k-rail and clear blockage to downstream lift station.		NA	07/16/2023 21:43														NA	Increased regular maintenance of upstream grease interceptor. Increased inspection of grease interceptor.	Increase in service of grease interceptor frequency.	NA	NA	NA	NA	NA	NA	
5F	5SSO10778	Active	Wawona CS	US Dept of the Interior Park Service	890091	1.2	Ready to Certify			30-AUG-23			Category 1 Spill	Man hole 1-1 by Lift Station 9	08/30/2023 08:07	08/30/2023 08:07	08/29/2023 22:15	08/30/2023 09:19	23-05559		Manhole 1-1 and homeowner clean out adjacent to lift station #9 	37.543673	-119.648753	Lateral Clean Out (Private); Manhole			600	See attached	N				See attached	200	0	Surface Water; Unpaved Surface		37.543673, -119.648753 See attachments	Y	37.543673	-119.648753							08/30/2023 16:57	Field estimation based on time, historic flows, and observations.	See attachments	Pump Station Failure - Controls		Other (specify below)	See attachments	Polyvinyl Chloride (PVC)		37	See attachments	N	Cleaned Up (specify below)	See attachments	See attachments	Other (specify below)	See attachments	See attachments	See attachments	08/30/2023 17:01	See attachments	N			Southfork of the Merced River	River			None	Other (specify below)	See attachments	NA	0	N	N												
2	2SSO10104	Active	Ccsf - San Francisco Airport CS	CCSF - San Francisco Airport	890092	1.1	Certified	Jennifer Acton	Director of Maintenance		31-AUG-23	31-AUG-23	Monthly Category 3 Spill	Gate F5	07/14/2023 08:20	07/14/2023 08:25	07/14/2023 08:10				Two appearance points, lateral cleanouts, located near each other on the airfield ramp near Gate F5.  See photos	37.61973	-122.38697	Lateral Clean Out (Public)		Two lateral cleanouts on the airfield ramp in close proximity to each other.	170	Sewage overflowed onto the airfield ramp paved surface and flowed down gradient to towards the storm drain catch basin.   See photos attached.	Y	Spill entered one down gradient storm drain catch basin.  This storm drain catch basin flows to a pump station that can be isolated and diverted to Mel Leong Treatment Plant.   Spill did not travel beyond the catch basin per visual inspection of the catch basin by responding airport personnel on scene.	35				170	Drainage Conveyance System; Paved Surface		Spill impacted airfield ramp paved surface and one down gradient storm drain catch basin.	Y	37.61975	-122.38695	37.61977	-122.38695	37.61955	-122.38665	37.61949	-122.38669	07/14/2023 08:25	Field measurements collected by responding Spill Team on scene.  Area/volume calculations were performed to estimate the spill volume that impacted the paved surface.  Flow rate of spill entering catch basin estimated visually/eyeball estimation and volume was calculated using spill incident times provided by responding personnel on scene.  	Spill start and end time information determined using details provided by responding Airport personnel on scene.	Debris-General; Fats, Oil and Grease (FOG)		Lower Lateral		Ductile Iron		22	Spill impacted airfield ramp paved surface and storm drain catch basin 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	Absorbent material used to protect the storm drain catch basin	Airport Communications dispatched Airfield Safety Operations, Fire Department, Facilities, and Spill Team.  Airport Fire Department used absorbent material to protect storm drain catch basin.  Plumbers used drain snake and hydrojetter to clear blockage and restore flow.  Airport scrubbing contractor clean paved surface.  Plumbers used vactor truck to pump out storm drain catch basin.  All waste water was captured and returned to the sanitary sewer system for processing.	Adjusted Schedule/Method of Preventive Maintenance		Tenant increased the frequency of regular service/pump out of the grease interceptor.  BPPP Team performs follow up inspections of the grease interceptor.		07/14/2023 10:45	Plumbers snaking and hydrojetting the lateral observed grease on the equipment.  These observations helped determine grease deposition and general debris caused the drain line to backup.		Inspection of grease interceptor	07/14/2023 10:45														NA	NA	Tenant increased the frequency of regular service/pump out of the grease interceptor.  BPPP Team performs follow up inspections of the grease interceptor.	NA	NA	NA	NA	NA	Inspection of grease interceptor	
8	8SSO10590	Active	Newport Beach City CS	Newport Beach City	890097	1.2	Certified	Michael Lynch	Wastewater Supervisor	31-AUG-23	13-SEP-23	13-SEP-23	Category 1 Spill	3057 Carob St.	08/29/2023 08:50	08/29/2023 06:05	08/29/2023 06:05	08/29/2023 10:00	23-5549		Manhole on Carob Street. On arrival the manhole (MHH08_094) in the middle of the street was overflowing at approximately 25gpm. Used sand and a sand bag to create a berm at the storm drain catch basin in an attempt to contain the spill, but was insufficient to stop most of the spill. Used a Vactor to run the line from the downstream manhole MHH08_466 towards MHH08_094. Used three different types of nozzles to try and clear the blockage. By using the 8  Root-Cutter, we were able to clear the blockage enough to get the line to start flowing downstream a little bit and to stop overflowing. Unfortunately while we were working on clearing the sewer blockage, the spill broke through the berm and we lost all put 1 gallon of the spill into the storm drain. Estimated total spill of 1,750 gallons (25gpm x 70 minutes) with 1,749 getting into the storm drain. Used Vactor to vacuum out the manhole MHH08_094 and run the line from this manhole to the upstream manhole MHH08_095, Grease and debris.	33.64617	-117.86765	Gravity Mainline; Manhole			1749	Photos show the cul-de-sac and storm drain where it entered.	Y	Map entered of storm drain system and where it exits to the upper Newport Back Bay.	1	0	Storm drain outfall off of East bluff rd. unable to access due to location and over grown, see goggle map picture.	1749	1	Drainage Conveyance System; Unpaved Surface		Storm drain system which drains to the upper Back Bay	Y	33.64725	-117.8677							08/29/2023 07:00	CWEA picture gauge, manhole picture x time line = 1750.  25 gpm x 70 minutes = 1750.	Time called to time cleared.	Debris-General; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		60	Overgrown area near upper back bay.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Built a berm at catch basin with sand bags and sand. set up vactor on downstream manhole and cleared the blockage. Removed grease logs and debris from manhole. Use high pressure water and vacuum to clean street and gutter. Flow broke the berm and only 1 gal was recovered.	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	CCTV did not show any obvious structural issues, possibly construction debris may have caused the back up.	Change this area to a quarterly schedule.	Change to quarterly instead of 18 month goal.	08/30/2023 10:00	The initial response showed grease logs and debris in the manhole, they were removed by the Vacuum truck.	N			Upper Back Bay	Wetland			None observed	Restricted Public Access		This area is not for public use.	0	N	N												
2	2SSO10104	Active	Ccsf - San Francisco Airport CS	CCSF - San Francisco Airport	890098	1.2	Certified	Jennifer Acton	Director of Maintenance		31-AUG-23	31-AUG-23	Monthly Category 3 Spill	Gate G3 Pedestrian Breezeway	07/29/2023 08:13	07/29/2023 08:18	07/29/2023 08:08				Sewage overflowed from one lateral cleanout onto a paved surface area and affected one nearby storm drain catch basin.  See photos	37.61769	-122.39094	Lateral Clean Out (Public)			51	Overflow spilled from the cleanout onto the paved surface walkway and down gradient towards a nearby storm drain catch basin. 	Y	Storm drain catch basin flows to a pump station that can be isolated and diverted to Mel Leong Treatment Plant.	35				51	Drainage Conveyance System; Paved Surface	Paved surface and storm drain catch basin	Overflow spilled from the cleanout onto the paved surface walkway and flowed down gradient towards a nearby storm drain catch basin. 	Y	37.61769	122.39094	37.617408	-122.390791					07/29/2023 09:26	Responding Airfield Safety Officer observed sewage overflowing from the cleanout and estimated flow rate was 1gpm.   Field measurements were collected by the Spill Team to calculate the volume on the paved surface. Spill team compiled all incident information to calculate the estimated total spill volume.	Spill details, Information and times provided by responding Airport Airfield Safety Operations and Spill Team.	Debris-General; Debris-wipes/Non-disposables		Lower Lateral		Ductile Iron		26	Spill impacted the paved ground surface around the spill appearance point and pedestrian walkway and entered a nearby storm drain catch basin.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	Absorbent material used to protect the storm drain catch basin	Airport Emergency Communications dispatched Airfield Safety Operations, Facilities and Spill Team.  Absorbent material was deployed to prevent additional sewage from entering the storm drain catch basin.  Scrubbing machine was used to clean the affected paved surface.  Airport Plumbers flushed the affected storm drain catch basin using potable water and captured the rinse/wastewater at the downstream sanitary manhole using a vacuum truck.  All wastewater was returned to the sanitary sewer system for processing.	Adjusted Schedule/Method of Preventive Maintenance		Preventative maintenance scheduled to be performed monthly includes hydrojetting of lower lateral drain line.  The Airport posted signage inside the restrooms to help prevent travelers from flushing non-dispersibles.  Environmental Operations to perform FOG inspections at upstream restaurants.		07/31/2023 09:00	Plumbers identified non-dispersibles/wipes and general debris when clearing blocking with drain snake.		NA	07/29/2023 10:00														NA	NA	Adjusted preventative maintenance method from Plumbers performing monthly drain snaking to monthly hydrojetting of lateral.	NA	NA	NA	NA	NA	NA	
2	2SSO10179	Active	San Jose City CS	San Jose City	890102	1.2	Certified	Ben Nguyen	Senior Engineer		31-AUG-23	31-AUG-23	Monthly Category 3 Spill	1879 Bethany Ave San Jose, CA 95132	07/19/2023 09:33	07/19/2023 10:00	07/19/2023 07:30				RP was homeowner's at at 1879 Bethany Ave who called when noticing sewer spill on the street in front of his home.  Sewage spilled out MH and appeared to sheet flow across roadway pavement toward curb and gutter.  Water was dried up when crew arrived and stain was visible on pavement and curb and gutter.   The spill did not reach the MS4 or drainage system.	37.40462771	-121.8764466	Manhole			62	The spill traveled across the street into the curb/gutter. Water on pavement and curb/gutter was dried up when crews arrived.  The spill did not reach a catch basin. 	N						62	Street/Curb and Gutter (2 3)		The spill (sewage) originated from the manhole in front of the home on 1879 Bethany Ave (spill appearance point). The manhole and the driveway are identified in 11.d. and 11.e. The spill did not reach the MS4 or drainage system. Location of the containment is identified in 11.f. and 11.g. and 11.h and 11.i	Y	37.40456402	-121.8764514	37.40454858	-121.876497	37.40459012	-121.8765111			07/19/2023 10:31	The spill volume was estimated using measurements by tape measure of the spill boundary provided by the First Responder.   Dimensions of the spill boundary (water stain) were estimated.  All the spill volume was assumed contained, cleaned up, and returned to the collection system.	The methodology used to estimate the spill volume was measurements of the spill recorded by the first responder.  The First Responder took video and pictures of the spill dried area.  Crew used tape measure and measuring wheel to measure the spill area. These dimensions were used to estimate the spill volume.  Water depth was assumed to be the minimum allowable since all the water was dried up.  The total estimated spill volume and information from the Reporting Party (RP) were used to assume a reasonable start time.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		51	The impact of the spill resulted was isolated to the bottom portion of the driveway of 1879 Bethany Ave.  There were no observed impacts to the public, nearby waterways, or wildlife. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		The spill discharged traveled along the property into the street curb/gutter. The sewage traveled along the curb and gutter and stayed at bottom of the driveway and a small puddle on top of the manhole.  It was a hot day and most of the spill dried up. The spill did not reach a catch basin.  The Crew set up equipment to clear the plug and performed cleaning up of the affected area. Next. the Crew onsite washed down and recovered all of the sewage along with induced water from the point of containment.  All of the spill on land was cleaned up and returned to the collection system. 	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause		Corrective actions for the spill include the following:  1. Conduct FOG outreach by distributing Grease Flyers to the nearby residents. 2. Revise problem pipe mainline cleaning cycle from 7 years to 2 years. 3. Re-CCTV the problem pipe mainline to assess issues in 6 Months to identify potential blockages or grease buildups. 		07/19/2023 17:00	While the Responding Crew cleared the blockage in the plugged sanitary mainline, the Crew documented their findings. Crew used a basket to collect the debris as they cleared the plug.  Collected debris would help to determine the cause. Crew collected what appeared to be a large pieces of grease which was likely the cause of the blockage. After conducting a follow up CCTV of the sanitary mainline, there were no other significant observations or defects in the pipe that would've contributed to the blockage. Therefore, it was determined that grease (FOG) was the primary cause of the blockage and spill.		All investigation efforts for this spill event have concluded. 	08/23/2023 15:00														N/A	The system modifications to the O & M program include the following: 1. Revise problem pipe mainline cleaning cycle from 7 years to 2 years 2. Re-CCTV the problem pipe mainline to assess issues in 6 Months to identify potential blockages or grease buildups. 	Revise problem pipe mainline cleaning cycle from 7 years to 2 years. 	N/A	CCTV condition assessment of the problem pipe segment and nearby upstream and downstream segments were conducted the following day.  No pipe repairs or replacements were required. 	No capital improvements were required based on the CCTV condition assessment.	The immediate system modifications to the O & M program include the following:  1. Revise problem pipe mainline cleaning cycle from 7 years to 2 years. 2. Grease awareness flyers were distributed in the surrounding community 	No modifications to the spill response activities were made 	All investigation efforts for this spill event have concluded. 	
5S	5SSO10965	Active	Hangtown Creek CS	Placerville City	890106	1.4	Certified	Nick Stone	Director of Public Works	31-AUG-23	14-SEP-23	14-SEP-23	Category 1 Spill	1045 Marshal way	08/29/2023 08:55	08/29/2023 08:55	08/29/2023 08:51	08/29/2023 11:04	23-5530		started spilling from a clean out on the hill side then moved down to a manhole in the street. 38.725562,-120.791014  and 38.725969,-120.791495 	38.72551	-120.791	Gravity Mainline; Lower Lateral (Private)			2000	spill originally exited from an clean out in the hill side next to road on marshal way and Corker street. crews dislodged the blockage from clean out, then noticed that a manhole in the street was starting to seep from the lid. crew then moved to the next manhole down stream to unclogged the second blockage  . during that time wastewater was running down the gutter pan on both sides of the road to a drains inlets, 	Y	6 drain inlets we affected by this spill, drainage system outflow was at the intersection of marshal way and cedar ravine.  The creek ran about 15  feet from the  drain outlet and then entered a concrete box culvert .	250	1750	One outfall from drainage conveyance system 	1750	250	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		Spill originated from clean out in hill side, ran down the hill side into curb and gutter on southside of street and entered a storm drain. the second appearance point was a manhole in the street. the spill ran down curb and gutter on both sides of street and entered storm drains on both sides of street.	Y	38.72552	-120.79102	38.72596	-120.79446	38.72617	-120.79229	38.72623	-120.79339	08/29/2023 10:11	Volume estimation were made in the field and noted for later calculation. Duration and flow rate comparison method. Group consensus on rate of flow.    	two different gpm rates.  when started coming from clean out on hill side it was assumed to be 25gpm for 20 mins  after the first blockage was cleared the spill stopped for approximately 10 mins,  then an employee noticed it reclogged approximately x 100 feet down the line.  with more connections behind it now the flow rate was calculated to be 50gpm for 30 minuets.	Fats, Oil and Grease (FOG)		Gravity Mainline; Manhole		Ductile Iron; Polyvinyl Chloride (PVC)		30	spill ran down curb and gutter into storm drains and outlet was approximately 1,000ft  down road in the cedar ravine creek. minor deposit of grease and raw sewage on road way.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		crews relived the blockage and immediately called for a vactor truck for cleaning of storm conveyance system and any accessible areas of the creek.	Added Sewer to Preventive Maintenance Program; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause		spill was due to excessive grease from hospital. enforcement was not  taken because changes are being made to hospital kitchen and they are adding a grease interceptor. 	will being making parodic check ins to  make sure upgrades are made. Follow up will be made to ensure that hospital corrections are completed.	08/29/2023 16:30	spill was due to excessive grease in main line. construction activities on hospital private line dislodged grease that caused a blockage in city mainline.	N			cedar ravine creek	Stream/Creek			no visible impact on aquatic life. no fish kill. no soap or foams observed in creek.	Other (specify below)	No way to close creek. not a public access area.	no	0	N	N												
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	890108	1.4	Certified	Daniel Whitlock	Manager	31-AUG-23	21-SEP-23	21-SEP-23	Category 2 Spill	2690 46th ave	08/26/2023 08:10	08/26/2023 09:35	08/26/2023 07:30		-		street lighting utility box on sidewalk	37.73629	-122.50414	Other (specify below)	 street lighting utility box on sidewalk. 		840	came out of street lighting utility box on sidewalk. went in to combination sewer catch basin	N						840	Other (specify below)	Combined Sewer System  	All portions of spill were returned to the combined sewer system. 	Y	37.73623	-122.50419							08/27/2023 02:30	Duration and Flow Rate  Estimated Start Time: 7:30pm 8/26/23 Stop Time: 2:30am 8/27/23 = 420min  420min x 2GPM = 840 Gallons	The spill start time was estimated by interviewing Motel employee who last observed no spill was 6:45pm 8/26/23. The end time was noted when the vacon cleared the blockage. 	Other (specify below)	Pipe Collapse	Gravity Mainline		Vitrified Clay		97	Minimal - Spilll flowed directly into combined catch basin.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		All portions of the spill were washed back into the combined sewer system catch basin. Vacon was used to clear the blockage and wash the area. 	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		Repair	Repair	08/27/2023 03:15	CCTV inspection confirmed pipe collapse was the cause of the spill. 	N												N													
7	7SSO10535	Active	Coachella Valley Water District CS	Coachella Valley WD	890117	1.3	Certified	Luis Torner	Wastewater Operations Manager	31-AUG-23	12-SEP-23	12-SEP-23	Category 2 Spill	Rancho Mirage Sewer Access Road 	08/28/2023 20:04	08/28/2023 20:50	08/28/2023 18:00	08/28/2023 22:30	20-5513		See Attachment	33.82364	-116.42039	Manhole			299925	See Attachment	N						179520	Unpaved Surface		Sand and silt entered the collection system as a result of Tropical Storm Hilary. Please see attached. 	Y	33.82364	-116.42039							08/31/2023 12:30	3,999 minutes at approximately 75 gpm (overflowing manhole reference sheet) = 299,925 gallons total	Assumptions based on overflowing manhole reference and reporting time. 	Natural Disaster (specify below)	Tropical Storm Hilary	Manhole		Vitrified Clay		29	Spill was contained within the area utilizing berms and captured through the use of combination units and pumps. No impacts on public health, safety or receiving waters. 	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		See attached documentation for reference	Added Sewer to Preventive Maintenance Program		Assets will be re-inspected for any additional debris and cleaning will be performed if needed. Future repairs for access roads will be planned and scheduled. Manhole rehabilitation and reinforcement to prevent future inflow from storm events. 	See attached documentation for reference	09/08/2023 17:00	See attached documentation for reference	N												N													
4	4SSO11388	Active	County Sanitation District Joint Outfall CS	Los Angeles Cnty Sanitation Districts	890119	1.2	Certified	Andre Schmidt	Wastewater Collection Systems Manager		31-AUG-23	31-AUG-23	Monthly Category 3 Spill	Joint Outfall C - Unit 4A Trunk Sewer	07/31/2023 22:20	07/31/2023 22:45	07/31/2023 21:03				See attachment	33.787265	-118.137611	Manhole			385	See attachment	Y	See attachment	5				385	Drainage Conveyance System that discharges to surface water		See attachment	Y	33.787309	-118.137664							07/31/2023 22:20	See attachment	See attachment	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		74	See attachment	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	See attachment	See attachment	Adjusted Schedule/Method of Preventive Maintenance		See attachment		08/01/2023 16:44	See attachment		N/A	08/01/2023 14:50														N/A	See attachment	See attachment	N/A	N/A	N/A		See attachment	N/A	
8	8SSO10558	Active	Redlands City Wastewater CS	Redlands City	890122	1.2	Certified	Fernando Mata	Wastewater Utility Manager		31-AUG-23	31-AUG-23	Monthly Category 3 Spill	421 W. Fern Ave.	08/09/2023 09:26	08/09/2023 09:45	08/08/2023 16:30				Mainline sewer back-up though manhole.  	34.0479	-117.1832	Gravity Mainline; Lateral Clean Out (Public)	Curb and gutter of private driveway approach		53	The spill occurred through the lowest point of sewer conveyance section from a lateral cleanout at 421 Fern Ave.   Only  two (2) laterals are upstream of this property.  	N	Due to elevation, liquids gather on the low spot of the driveway at 421 W Fern Ave. This results in water pooling in the low area. 	53				53	Paved Surface; Street/Curb and Gutter (2 3)		Due to elevation, liquids gather on the low spot of the driveway at 421 W Fern Ave. This results in water pooling in the low area. 		34.0479	-117.1832							08/09/2023 10:15	The volume of spill was calculated by area/volume calcs. Measurements were taken from onsite spill.	We estimated the spill start time based on the first observed signs of discharge from the source and determined the spill end time when all visible discharge ceased, while relying on real-time monitoring data, witness accounts, and historical spill data for validation and precision.	Root Intrusion		Gravity Mainline		Vitrified Clay		79	Minimal to no noticeable impact, resulting in only slight inconvenience with limited consequences observed.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Spill response activities included immediate spill containment and cleanup efforts. Upon discovery of the spill, a rapid response team was deployed to the site. Containment measures involved the placement of absorbent materials and barriers around the spill area to prevent further spreading. Cleanup efforts consisted of the removal and proper disposal of the spilled substance, followed by thorough decontamination of the affected area to mitigate any environmental or safety risks	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		The spill corrective action plan involves a comprehensive strategy to mitigate and prevent future spills. This includes regular source inspections, ongoing training, improved response protocols, environmental monitoring, facility upgrades, and continuous regulatory compliance checks. Major milestones include initial inspections and training within the first year, with facility upgrades and comprehensive compliance reviews scheduled for subsequent years to ensure a systematic and effective approach.		08/14/2023 14:46	The investigation into the cause of the spill, conducted by the Wastewater Collections Supervisor and his dedicated staff, revealed a comprehensive understanding of the incident. It was determined that the spill resulted from root intrusion into the sewage pipe. The team's meticulous investigation uncovered that the roots had penetrated the pipe, causing blockages and subsequent spillage through a lateral cleanout at 421 W. Fern Ave. This finding highlights the crucial role of regular maintenance and root control measures in sewage systems to prevent future occurrences of root intrusion-related spills.		Ongoing investigation efforts involve the continuous collection of data, root cause analysis, regulatory compliance reviews, and documentation maintenance to comprehensively assess the spill incident and take appropriate actions. These efforts are crucial for a thorough understanding of the incident, preventive measures, and compliance assurance.	08/10/2023 09:48														In response to this spill, local regulatory authorities may have taken enforcement actions, such as investigations and penalties, as deemed necessary to address the illicit discharge, ensuring compliance with local environmental regulations.	To prevent recurring spills at the same location, it is imperative to make identifiable system modifications, including enhanced containment and drainage systems. Operational adjustments, such as stricter handling protocols and regular equipment maintenance, should be enforced, and maintenance programs need to be strengthened through proactive scheduling and comprehensive personnel training. These measures collectively aim to significantly reduce the risk of repeated spills at the same site.	The adjusted schedule and method of preventive maintenance involve optimizing maintenance activities to enhance equipment reliability and prevent breakdowns. This may include revising maintenance intervals, conducting more frequent inspections, and implementing condition-based monitoring to ensure proactive identification and rectification of potential issues before they lead to equipment failure.	The planned rehabilitation or replacement of the sanitary sewer asset is part of a Capital Improvement Program (CIP). This program strategically allocates resources to address aging or deteriorating infrastructure by either restoring the existing asset through rehabilitation methods such as lining or structural repairs, or by completely replacing it. 	We have conducted inspections and taken necessary actions to ensure the integrity and functionality of the assets. This includes the repair of any identified issues and the replacement of defective assets when required.	The planned rehabilitation or replacement of the sanitary sewer asset is part of a Capital Improvement Program (CIP). This program strategically allocates resources to address aging or deteriorating infrastructure by either restoring the existing asset through rehabilitation methods such as lining or structural repairs, or by completely replacing it. 	We have documentation that verifies the immediate implementation of system modifications and operating/maintenance adjustments, all facilitated through a virtual program that spans across the city. These documents include records of modifications made, dates of implementation, and relevant supporting evidence, such as photographs, reports, and work orders. This documentation serves to confirm the proactive steps taken citywide to enhance the system and maintenance protocols for spill prevention.	Modifications to spill response activities involve refining procedures to ensure a more efficient and effective response to spills. These improvements may encompass enhanced training for response teams, streamlined communication protocols to facilitate quicker coordination, and optimized resource allocation for prompt deployment. Additionally, community engagement initiatives may be implemented to raise awareness and improve public involvement in reporting spill incidents.	Ongoing investigation efforts involve the continuous collection of data, root cause analysis, regulatory compliance reviews, and documentation maintenance to comprehensively assess the spill incident and take appropriate actions. These efforts are crucial for a thorough understanding of the incident, preventive measures, and compliance assurance.	
2	2SSO10216	Active	West County WW District CS	West County Wastewater District	890123	1.1	Draft Submitted			31-AUG-23			Category 1 Spill	5555 Giant Highway	08/29/2023 23:03	08/30/2023 00:35	08/29/2023 22:00	08/30/2023 00:55	23-5550		The spill escaped from a MH behind the Richmond Golf Club about 60ft Southeast of BNSF Railroad tracks. The spill collected in 3 Bioswales on the South and North sides of Atlas Rd. (See Photos)	37.99511	-122.35001	Force Main			381950	See By-Pass and Bioswales document.	N	The system was a set of connecting Bioswales which were plugged to contain the water. See Bioswales Document.			NA	0	0			The spill entered a series of bioswales operated by the City of Richmond for stormwater disposal. WCW plugged the overflow structure of the final bioswale in the series and no flows reached the Richmond stormdrain system or its receiving waters. Crews worked to recover sewage from the bioswales, with a portion of it percolating into the bottom of the bioswales. 	Y	37.99489	-122.35032	37.99701	-122.34839	37.99895	-122.34565				There were two spill events. The first was estimated to have started at 10PM on August 29, and end when the pump around was complete on August 30 at 11:34 AM. The second occurred when the pump failed and started around 9:30 AM and ended at 1:50 PM on august 31. Scada data from the lift stations during these time periods were calculated by the pump run times and GPM.	There were two spill events. The first was estimated to have started at 10PM on August 29, and end when the pump around was complete on August 30 at 11:34 AM. The second occurred when the pump failed and started around 9:30 AM and ended at 1:50 PM on august 31. Scada data from the lift stations during these time periods were calculated by the pump run times and GPM.	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure		Air Relief Valve (ARV)/ Blow-Off Valve (BOV); Other (specify below)	Threads at the bottom of the blow-off valve failed allowing the water fill and overflow the manhole.	Cast Iron			The area around the manhole was covered with solids from the spill. Sewage that entered the drainage channel leading to the bioswales seeped into the ground. Water entered all three bioswales and will be removed from the with vacuum trucks until the operation is complete. There have been no signs of damage to the environment or any animals that live in the bioswales.																																				
8	8SSO10617	Active	Eastern Municipal Water District CS	Eastern Municipal Water District	890124	1.3	Certified	Ken Tagney	Director of Water Reclamation	31-AUG-23	13-SEP-23	13-SEP-23	Category 1 Spill	MH51461, 30790 Expedition Dr, Winchester CA 	08/30/2023 20:33	08/30/2023 20:55	08/30/2023 20:33	08/30/2023 21:45	23-5588		EMWD was notified of the SSO by one our our customers. Upon arrival it was determined that the manhole was no longer spilling.	33.69172	-117.12331	Manhole			30	The SSO flowed to the northside of Expedition Drive until it reached the curb gutter at which point it slowed along the gutter until it reached a storm drain inlet near the intersection of Expedition Drive and Dotted Mint Road. Storm drain inlet was dry when it was inspected by responding EMWD crews. 	N	Curb storm drain inlet. The storm drain inlet was noted as being dry when crews removed lid. 	30	0	Due to the area where the SSO took place being a new development there are no maps of the routing for the underground stormwater conveyance system.  	0	30	Street/Curb and Gutter (2 3)		The SSO flowed to the northside of Expedition Drive until it reached the curb gutter at which point it slowed along the gutter until it reached a storm drain inlet near the intersection of Expedition Drive and Dotted Mint Road. The storm drain inlet was noted as being dry when crews removed lid. Curb gutter along Expedition Drive was the only area impacted by the spill. 	Y	33.69171	-117.12334	33.69092	-117.12053					08/30/2023 20:55	The manhole had stopped overflowing by the time crews had arrived on site. 30 gallons from recovery was estimated. 	Spill start time was derived from when the customer called EMWD to inform them that one of our manholes was overflowing. The end time was when the crew arrived on site since the manhole was no longer overflowing at that time. 	Debris-General		Gravity Mainline; Manhole		Polyvinyl Chloride (PVC)		1	The spill impacted the pavement and curb gutter along Expedition Dr. 	N	Cleaned Up (specify below); Returned All Spill to Sanitary Sewer System		Spill had stopped when crews arrived on site. Crews recovered the spill material from the curb and gutter. Once spill material had been recovered they began washing down the affected area with water. All water and spill material was recovered using a vactor truck. 	Inspected Sewer Using CCTV to Determine Cause		The cause was discovered to be construction material left in the manhole causing an obstruction in the line ultimately causing it to spill. Construction material was removed.  The line was CCTV'd.	8/30: Vacuuming out sewage, debris removal, and flow restoration.  8/31: CCTV investigation and conformation of proper operation.  	08/31/2023 15:49	After crews conducted a CCTV investigation they found the cause to be from construction debris in the pipe. Specifically the debris found if the pipe was pool grout. 	N			None	Other (specify below)	Spill did not reach a surface water body. 		None, as the spill never reached a water body and was completely recovered. 	Other (specify below)	None	None	0	N	N												
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	890135	1.4	Certified	Daniel Whitlock	Manager	01-SEP-23	13-SEP-23	13-SEP-23	Category 2 Spill	496 Sea Cliff Ave	08/30/2023 10:00	08/30/2023 09:26	07/01/2023 00:00		-		Spill emanated from a void in the ground in front of 496 Sea Cliff Ave and traveled down a hillside on private City/GGNRA property	37.78723	-122.49153	Force Main			5580	The spill exited the ground from hillside in front of 496 Sea Cliff ave. Flowed down the hill approx. 57' to the end of the walkway of the lift station on the hill. The flow proceeded to flow down heavily planted hillside to the retaining wall at the base of the mountain approximately another 108'. Total flow path was approximately 165'. attachments are included (Videos) 	N						0	Unpaved Surface		Spill emanated from the ground in front of 496 Sea Cliff Ave. The flow ran down the hill to a retaining wall on the China Beach access road	Y	37.78722	-122.4915	37.78772	-122.49145	37.7873	-122.49153	37.78761	-122.49157	08/31/2023 07:00	Used Sea Cliff 1 pump station data and eyeball method from flow observed  Pump cycles: 12 cycles per day Cycle time: 90 seconds = 1.5 minutes Flow rate witnessed on-site (eyeball): 5 GPM Number of days (7/1/23 to 8/31/23): 62 days  Total volume: 1.5 minutes x 5 gal/min x 12 = 90 gals per day x 62 days = 5,580 gallons	Start time: void on the hillside and saturated soil discovered during property inspection on 7/11/2023. Assumption is that the spill began prior to this discovery, therefore an approximate start date of 7/1/2023 was used due to the state of the soil saturation found during 7/11/2023 inspection.  End time: A dye test performed on 8/30 which confirmed this as a collection system spill. Excavation of the asset began on 8/31, and a repair was initiated on the same day.	Pipe Structural Problem/Failure - Controls		Force Main		Cast Iron		85	Spill occurred on a hillside that is City/GGNRA property and where there are no public access points. Evidence of impact is saturated soil running from the force main void to the bottom of the hill at a retaining wall. All spill volume was absorbed by the soil. 	N	Other Enforcement Agency Notified; Property Owner Notified; Restored Flow		Repair initiated as soon as asset leak was discovered, no spill containment efforts were possible as the spill flow was absorbed by soil on hillside.	Repaired Facilities or Replaced Defect		Spill was confirmed on 8/30, repairs were initiated on 8/31 and completed on 9/1	NA - repairs complete	09/01/2023 11:00	A dye test performed on 8/30 confirmed that the cause of the spill was a leak in a force main. Repairs were initiated on 8/31 and completed on 9/1	N												N													
4	4SSO11388	Active	County Sanitation District Joint Outfall CS	Los Angeles Cnty Sanitation Districts	890136	1.2	Certified	Andre Schmidt	Wastewater Collection Systems Manager	01-SEP-23	07-SEP-23	07-SEP-23	Category 2 Spill	Sorensen Avenue Trunk (District 18)	08/24/2023 22:32	08/24/2023 23:13	08/24/2023 21:00		-		The spill originated from LACSD�s Sorensen Avenue Trunk at LACSD Manholes (MHs) 18 0387 and 18 0388 located at coordinates 33.978082� N, -118.052835� W, and 33.978123� N, -118.052840� W on Sorensen Avenue, respectively, approximately 45 feet northeast of Keith Drive in the Unincorporated Area of West Whittier.	33.978082	-118.052835	Manhole			10392	The spill area extended approximately 23 feet southeast and 65 feet southwest of MH 18 0388 to the south gutter of Sorensen Avenue.  The spill traveled southwest approximately 0.4 miles along Sorensen Avenue and entered a catch basin in front of a residence located at 7534 Sorensen Avenue.  The spill then traveled below ground an additional 1.5 miles to the Sorensen Avenue Drain.  	Y	The spill entered a storm drain catch basin in front of a residence located at 7534 Sorensen Avenue in the Unincorporated Area of West Whittier (see Photo 3).  The spill traveled below ground in the storm drain system for approximately 1.5 miles and reached the Sorensen Avenue Drain at Santa Fe Springs Road in the City of Santa Fe Springs (see Photo 4).  The Sorensen Avenue Drain is a concrete storm channel located in the Cities of Santa Fe Springs and Whittier. 	10392	0			10392	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		The spill originated from LACSD�s Sorensen Avenue Trunk and Sorensen Avenue Relief Trunk at LACSD Manholes (MHs) 18 0387 and 18 0388 located at coordinates 33.978082� N, -118.052835� W, and 33.978123� N, -118.052840� W on Sorensen Avenue, respectively, approximately 45 feet northeast of Keith Drive in the Unincorporated Area of West Whittier.	Y	33.978082	-118.052835	33.978123	-118.05284	33.973142	-118.05767	33.956062	-118.053339	08/24/2023 23:29	See Attachment	The spill start time of 9:00 p.m. is based on the time the spill was discovered by the resident who reported the spill to the Pico Rivera Sherriff�s Office and follow up conversation with resident.  The spill end time of 11:29 p.m. was observed by LACSD staff when flows from MHs 18 0387 and 18 0388 ceased.  	Debris-General; Other (specify below)	The spill was caused by a blockage due to a link pipe repair sleeve that became dislodged and partially impeded flow in the sewer system.	Manhole		Vitrified Clay		85	See Attachment	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	-Removed link pipe repair sleeve from downstream LACSD MH 18 0510 -Flushed and washed street/curb and gutter with potable wash water -Flushed storm drain with potable wash water -Cleaned and flushed the Sorensen Avenue Drain with potable wash water -Collected and returned wash water to sewer 	See Attachment	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below)	LACSD has created a list of all link pipes installed in its collection systems and will conduct closed-circuit television (CCTV) inspections of these locations on an annual schedule. In addition, LACSD is developing projects to proactively remove the link pipes. 	See Attachment	See Attachment	08/25/2023 12:52	See Attachment	N												N													
5S	5SSO11007	Active	Murphys CS	Murphys SD	890138	1.4	Certified	Dan Murphy	CPO		03-SEP-23	03-SEP-23	Monthly Category 3 Spill	118 main st murphys ca	09/03/2023 08:38	09/03/2023 08:45	09/03/2023 08:50				Manhole overflowing at 5 gal per minute	38.13725	-120.45834	Manhole			100	Manhole overflowing onto paved surface	N						5	Paved Surface		Paved surface	Y	38.13723	-120.45824							09/03/2023 09:00	Used the SSCSC MANHOLE OVER FLOW GAUGE. Estimated 5 gallons a minute for	Received the call at 08:38 ended spill at 08:50. 5 gallons a minute for 20min equals 100	Damage by Others Not Related to Collection System Construction/Maintenance		Gravity Mainline		Vitrified Clay		60	paved surface	N	Cleaned Up (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Hydro flusher, bleach	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance		video inspection hydro flushing		09/03/2023 09:00	Upon hydro flushing the line iI found a piece of pvc in the line,		video inspection and hydro flushing	09/06/2023 10:39														video inspection and hydro flushing	video inspection and hydro flushing	weekly	replace main line	inspected	new mainline	video documentation	video inspection and hydro flushing	video inspection and hydro flushing	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	890140	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		27-MAR-24	27-MAR-24	Category 1 Spill	1484 North Doheny Drive 	09/01/2023 14:42	09/01/2023 16:20	09/01/2023 14:42	09/01/2023 17:59	23-5626		The initial crew arrived at 4:20 P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.098772	-118.389698	Manhole			656	No Photographs Taken	Y	The entire back up amount entered an adjacent County of Los Angeles catch basin, which is tributary to Ballona Creek.	0	656	No Photographs Taken	656	0	Drainage Conveyance System; Street/Curb and Gutter (2 3)		34.098772  118.389689	Y	34.098772	118.389689							09/01/2023 16:40	Spill flowrate and volume determination based on flowout pickhole or opening 	Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening3inches Flowrate per pickole/opening (gpm)4gpm # of pickholes/openings1 Total flowrate (gpm)4gpm Duration of spill (minutes)118minutes Total flow (gallons)416gallons  Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening1inches Flowrate per pickole/opening (gpm)2gpm # of pickholes/openings1 Total flowrate (gpm)2gpm Duration of spill (minutes)118minutes Total flow (gallons)240gallons 	Root Intrusion		Gravity Mainline		Vitrified Clay		86	It was estimated that approximately 656 gallons of sewage backed out of the sewer as a result of the blockage. The 656 gallons of sewage entered an adjacent County of Los Angeles catch basin at the intersection of Doheny Drive and Flicker Way, which is tributary to Ballona Creek	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow		A CWCD crew was dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 4:40 PM. 	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect		Pipeline Repairs Were Completed On October 5, 2023.	Pipeline Repairs Have Been Completed October 5, 2023.	09/01/2023 16:40	CCTV Showed Several Defects In The Pipeline, The Repairs Were On Completed October 5, 2023.	N	None.		Ballona Creek	Other (specify below)	Ballona Creek	Ballona Creek	None.	Other (specify below)	Beach Was Not Closed.	Beaches and Harbor	0	N	Y	1484 North Doheny Drive	Total Coliform E. Coli Enterococcus									None.	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	890141	1.2	Certified	Gerald Watson	Sanitation Wastewater Manager III		28-MAR-24	28-MAR-24	Category 2 Spill	11647 West San Vicente Boulevard	09/02/2023 15:22	09/02/2023 16:19	09/02/2023 15:22	09/02/2023 18:50	23-6547		The initial crew arrived at 4:19 P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.054308	-118.464221	Inside Building or Structure			2885	None Taken.	N		2885	0			2885	Building or Structure		Sanitary Sewer Overflow  34.054308 118.464221	Y	34.054308	118.464221							09/02/2023 15:22	Volume of a spill contained in a rectangular area 	Volume of a spill contained in a rectangular area Length254feet Width20feet Depth0.5inches0.0417feet  211.67ft31,583gallons  Volume of a spill contained in a rectangular area Length98feet Width26feet Depth0.5inches0.0417feet  106.17ft3794gallons  Volume of a spill contained in a rectangular area Length181feet Width4feet Depth0.5inches0.0417feet  30.17ft3226gallons  Volume of a spill contained in a rectangular area Length181feet Width5feet Depth0.5inches0.0417feet  37.71ft3282gallons 	Fats, Oil and Grease (FOG)		Gravity Mainline		Concrete		97	It was estimated that approximately 2,885 gallons of sewage backed out of the sewer as a result of the blockage, where it entered the property of 11647 West San Vicente Boulevard. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 4:22 PM. The cause of the blockage was attributed to Fats, Oils, and Grease (FOG) accumulation. All necessary clean-up was then performed.	Adjusted Schedule/Method of Preventive Maintenance		Adjusted Maintenance Schedule	None At This Time	09/02/2023 15:22	The crew removed the blockage, and the backup ceased at 4:22 PM. The cause of the blockage was attributed to Fats, Oils, and Grease (FOG) accumulation.	N												N													
2	2SSO10665	Active	Westborough CS	Westborough Water District	890146	1.2	Certified	Patricia Mairena	General Manager	05-SEP-23	14-SEP-23	14-SEP-23	Category 1 Spill	2301 Olympic Drive	09/01/2023 16:30	09/01/2023 17:00	09/01/2023 16:30		-		2301 Olympic Drive, South San Francisco, CA	37.64271	-122.45381	Lower Lateral (Private); Upper Lateral (Private)			632	Pictures are documented in Overflow Emergency Response Plan	Y	Storm drain	432	200	Private lateral	200	432	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		SSO was coming out of cleanout of a private lateral spilling onto the street (Olympic Dr.) onto curb and gutter down to Colma Creek, which is a concrete drainage channel to the San Francisco Bay.	N	37.64271	-122.45381							09/01/2023 17:49	SSO chart, visual estimate, and duration and flow rate comparison.	SSO chart and flow rate comparison	Fats, Oil and Grease (FOG); Pipe Structural Problem/Failure - Controls		Lower Lateral; Upper Lateral		Vitrified Clay		60	SSO was coming out of cleanout of a private lateral spilling onto the street (Olympic Dr.) onto curb and gutter down to Colma Creek, which is a concrete drainage channel to the San Francisco Bay.  It is not a fresh water creek. No aquatic life in creek.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Flusher crew broke thru blockage, restored main line flow, cleaned up street/debris, captured portion of spill at storm drain on Westborough and Gellert.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Main line is currently on Trouble Spots List.  Main line was inspected with CCTV on 9/5/23.	Every 4 months.	09/01/2023 17:49	CCTV on 9/1/23 found to have a sag in line along with grease.	N			Colma Creek/San Francisco Bay	Other (specify below)	Colma Creel is a a concrete drainage channel, not a fresh water creek.  No aquatic life in creek.		None.	Other (specify below)	None.	N/A	0	N	N												
2	2SSO10184	Active	San Rafael SD CS	San Rafael Sanitation District	890155	1.1	Certified	Doris Toy	District Manager		29-SEP-23	29-SEP-23	Monthly Category 3 Spill	70 Bret Harte Rd	08/25/2023 22:13	08/25/2023 19:30	08/25/2023 18:00				The homeowners at 70 Bret harte rd were on their evening hike they do everyday and found a manhole on the easement leaking between the manhole casting and cone at 1800 hours then called it in to San Rafael PD at 1810 hours.  Our after hours contractor was notified at 1915 hours and their technician arrived at 1930 hours.  They notified us at 2213 hours when they completed clearing the pipe and cleanup.	37.9537523174	-122.516050269	Manhole			279	The sewer manhole and easement is on the edge of very steep hillside.  After leaving the manhole the effluent soaked into the ground and traveled roughly 25 feet downslope into thick dense trees, shrubs and poison oak.  	N						0	Unpaved Surface		Thick, steep and forested open space	Y	37.953809	-122.516059							08/25/2023 21:15	13 upstream lateral connections above this manhole.  Total spill time 195 minutes between the hours of 1800 hours and midnight. 	 The homeowner who reported the spill can see the manhole from their home and don't remember seeing it leaking earlier in the day.  They feel fairly confident it just started when they happened to walk upon it.	Debris-Rags; Fats, Oil and Grease (FOG)		Gravity Mainline		Cross-Linked Polyethylene (PEX)		20	Spill was absorbed into the ground 	N	Other (specify below); Restored Flow	collected solids (emulsified toilet paper) around back of manhole.	collected solids and disinfected area	Added Sewer to Preventive Maintenance Program		Added this segment of pipe to the preventive maintenance program.  The pipe immediately upstream is already on the PMP and receives cleaning once a year.  		08/25/2023 21:15	Our contractor reported clearing the blockage 90 feet downstream of manhole.  They continued rodding the pipe an additional 35 feet to ensure the blockage made it to the steep section of pipe.  We did not see any defects in the pipe to cause a blockage.  It is believed a buildup of rags and FOG may have gotten caught up on the bead formed when the HDPE pipe joints were welded together.  Current standards require de-beading but this was not the case 20 years ago.  		No	08/28/2023 14:00														Not applicable	No	Added to preventive maintenance program	Not at this time.  This HDPE pipe was installed 20+ years ago after previous VCP pipe slid away during a mudslide in the area.	inspected and found no defects	No	No	When our contractor arrived they then had to hike-pack in their equipment up a steep fire road to the manhole.	No	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	890164	1.0	Work In Progress						Monthly Category 3 Spill	10244 North Oro Vista Avenue	01/10/2023 09:58	01/10/2023 10:40	01/10/2023 09:58				The initial crew arrived at 10:40 A.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. The backup amount was contained within the property located at 10244 North Oro Vista Avenue and subsequently it was disposed of by the property owner.  	34.255597	-118.315798	Inside Building or Structure			176		N						176	Other (specify below)	The backup amount was contained within the property located at 10244 North Oro Vista Avenue and subsequently it was disposed of by the property owner.											01/10/2023 12:57	The SSO volume was estimated utilizing a standardized template which calculates the volume by using dimensional analysis.		Root Intrusion		Gravity Mainline		Vitrified Clay		63		N	Contained All or Portion of Spill; Restored Flow			Adjusted Schedule/Method of Preventive Maintenance				01/10/2023 12:57																											
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	890176	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		28-MAR-24	28-MAR-24	Monthly Category 3 Spill	1558 North Tower Grove Drive	09/05/2023 07:40	09/05/2023 08:37	09/05/2023 07:40				The initial crew arrived at 8:37A.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.09847	-118.425868	Manhole			91	It was estimated that approximately 91 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.	N		0				0	Other (specify below)	The entire back up amount soaked into the ground.	34.098470  118.425868		34.09847	118.425868							09/05/2023 08:58	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.	Spill flowrate and volume determination based on flowout pickhole or opening 	Root Intrusion		Gravity Mainline		Vitrified Clay		65	It was estimated that approximately 91 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.	N	Cleaned Up (specify below); Restored Flow		On Tuesday, September 5, 2023 7:40 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1558 North Tower Grove Drive (TG 592-5D). A CWCD crew was immediately dispatched to the incident location and determined that 8-inch main line sewer, serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 8:58 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Pipeline Is Scheduled For Semi-Annual Maintenance.		09/05/2023 08:58	On Tuesday, September 5, 2023 7:40 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1558 North Tower Grove Drive (TG 592-5D). A CWCD crew was immediately dispatched to the incident location and determined that 8-inch main line sewer, serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 8:58 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.		None At This Time.	09/05/2023 08:58														None At This Time.	Pipeline Is Scheduled For Semi-Annual Maintenance.	Pipeline Is Scheduled For Semi-Annual Maintenance.	None At This time.	None At This Time.	None At This Time.	None At This Time.	Pipeline Is Scheduled For Semi-Annual Maintenance.	None At This Time.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	890182	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	06-SEP-23	11-SEP-23	11-SEP-23	Category 1 Spill	4800 East 12th Street, Oakland Ca 94609	09/01/2023 11:13	09/01/2023 12:20	09/01/2023 11:00	09/01/2023 13:26	23-5619		Manhole in street at intersection of East 12th Street and 48th Avenue, and Lateral Clean Out (Private) at sidewalk area in same intersection.	37.76879	-122.21163	Lateral Clean Out (Private); Manhole			677	Manhole in street at intersection of East 12th Street and 48th Avenue, and Lateral Clean Out (Private) at sidewalk area in same intersection flowing into 2 Separate Storm catch basins in same intersection.	Y	Separate Storm drain system in same intersection named 54th Avenue, Peralta, Courtland, and Seminary Creeks flowing to East Creek Slough.	0	677	Separate Storm drain system in same intersection named 54th Avenue, Peralta, Courtland, and Seminary Creeks flowing to East Creek Slough.	677	0	Drainage Conveyance System that discharges to surface water		Six hundred and seventy- seven gallons spilled from a sewer manhole and lateral clean out. 	Y	40.78299	-111.87303							09/01/2023 14:30	Calculations were based on start time from eyewitness account. Manhole at the intersection showed evidence of manhole discharge but was not overflowing when responding crew arrived on scene. Manhole spill was 5 GPM X 80 minutes= 400 gallons  Private lateral cleanout was .5'' Pick Holes x .5height = .66 GPM x 2 pick holes= 1.32 GPM x 210 minutes=277 gallons Total Spill 400+277=677 gallons	Calculations were based on start time from eyewitness account. End time was based on when crew opened the blockage in the mainline.	Debris-General; Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		90	Six hundred and seventy - seven gallons spilled from a sewer manhole and lateral clean out into a storm drain that flows to 54th avenue, Courtland, Seminary creeks, to East Creek Slough.	N	Cleaned Up (specify below); Restored Flow	Affected areas was cleaned and vacuumed. Portions of the storm drain system was cleaned and flushed.	Affected areas was cleaned and vacuumed. Portions of the storm drain system was cleaned and flushed.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Line has been placed on schedule to mechanically cleaned.	Line will be placed on a six-month high preventative maintenance program.	09/08/2023 11:00	CCTV inspection found root intrusion to be the main cause of the overflow.	N			54th avenue,Peralta, Courtland, Seminary Creek	Slough			No impacts observed.	Other (specify below)	No impacts.	N/A	0	N	N												
1	1SSO11419	Active	Humboldt CSD CS	Humboldt CSD	890186	1.2	Certified	Tim Latham	Superintendent	06-SEP-23	18-SEP-23	18-SEP-23	Category 1 Spill	.2 tenths mile West of 4750 Fairway drive	09/04/2023 20:05	09/04/2023 20:10	09/04/2023 20:05	09/04/2023 21:50	23-5680		Sewer water came out of a clean out under a G5 box lid on the roadway	40.758611111111	124.170833333333	Gravity Mainline			225	water ran off the roadway onto 20 ' strip of vegetation then into a storm water ditch 	Y	100' of storm water ditch with vegetation 	0	0	storm water ditch with vegetation empties into Martin Slough	57	0	Drainage Conveyance System that discharges to surface water; Surface Water		Spill would impact surface waters at Martin Slough, which flows into Swain Slough, which flows into Elk River Slough, which empties into Humboldt Bay 	N									09/04/2023 20:50	Due to the reduced flow rate,Visual estimation was utilized as compared to filling a 5-gallon bucket	Due to the time of notification, and the lack of nearby housing/businesses, pedestrians, etc., the spill time was noted as when the District was notified. The spill end time was confirmed by District personnel onsite. 	Damage by Others Not Related to Collection System Construction/Maintenance; Debris from Construction		Gravity Mainline		Other (specify below)	Asbestos Cement (A/C)	50	Minimal impact due to amount of spill and quantity of receiving water bodies	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow		Responded to the spill location, determined the issue to be a main line blockage, utilized the Vac-con hydro cleaner to relieve the main line blockage which restored the flow, cleaned up all affected areas, and notified all appropriate agencies regarding the spill	Other (specify below)	Removed debris from the sewer main line. Concrete and gravel had created a partial blockage in the sewer main line causing the spill. 	Crews returned to the spill location and cleaned the sewer main line multiple times. Once determined clean, CCTV was used to film the sewer main line and confirm that no further issues exist.	Already completed as listed above	09/04/2023 22:30	See above in 10.a. and 10.b.	N			Martin Slough, Swain Slough, Elk River Slough, Humboldt Bay	Other (specify below); Slough	Humboldt Bay		NONE	Other (specify below)	NONE	N/A	0	N	N												
5S	5SSO10865	Active	Angels Camp CS	Angels City	890191	1.2	Certified	Dave Richard	City Engineer � Water/Wastewater		06-SEP-23	06-SEP-23	Monthly Category 3 Spill	640 Placer, Angels Camp	08/28/2023 11:46	08/28/2023 12:16	08/28/2023 11:30				Manhole overflow following clogging of sewer from excessive amount of material from residential discharge	38.07372	-120.5559	Manhole			50	Manhole into a dry ditch line	N						40	Other (specify below)	dry ditch with no outlet	manhole and adjacent dry ditch										08/28/2023 12:30	Visual	Resident report and staff cleanup concluded	Debris-wipes/Non-disposables		Manhole		Polyvinyl Chloride (PVC)		50	No impact	N	Cleaned Up (specify below)		Hydro/Vac, rake/shovel, disinfection	Other (specify below)	Notify resident to not use flushable wipes	Notify resident to not use flushable wipes		08/28/2023 12:30	Visual inspection at time of spill		Periodic rechecking of manhole to determine if problem is recurring	08/28/2023 12:30														n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a	Periodic rechecking of manhole to determine if problem is recurring	
4	4SSO11423	Active	Long Beach Water Dept. CS (SSO program)	Long Beach City, Water Dept	890199	1.2	Certified	Jennifer Rojas	Senior Director 	07-SEP-23	08-SEP-23	08-SEP-23	Category 2 Spill	226 W. 19th Street Long Beach CA 90806	09/03/2023 09:25	09/03/2023 10:10	09/03/2023 08:25	09/03/2023 18:50	23-5659		The spill originated from a city sewer manhole at 226 W. 19th Street. G15-SMH-051	33.79153	-118.19458	Manhole			1200	Sewage overflowed from a city sewer manhole, traveled down the street curb and gutter, and entered the LA County storm drain catch basin. It then flowed down the storm drain pipe for five blocks until it reached a storm drain manhole, where it was contained and fully recovered. Please see the attached document for more details.	Y	Concrete storm drain pipe. 	1200	0			1200	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		The spill entered the storm drain pipe, which runs west on PCH Hwy, to the LA County storm drain Pump Station, but it was contained at the storm drain manhole before it reached the pump station.	Y	33.78989	-118.20062							09/03/2023 10:25	Based on a field investigation, the spill began at 8:25 a.m. at a rate of 10 gallons per minute. When the sewer crew arrived and broke the stoppage at 10:25 a.m., the spill lasted for 120 minutes at a rate of 10 gallons per minute. Therefore, the total spill volume at the end was 1,200 gallons.	a Resident walking down the street saw the spill coming out of the manhole and placed the call to dispatch. he provided the information that lead to the spill start time.	Debris-Rags; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		101	The spill had minimal impact on residents. Although sewage entered the city streets, gutters, and storm drains, it was fully recovered and cleaned up. The area was secured by the crew until our contractor, Ocean Blue, completed the cleanup.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow	Ocean Blue removed sewage and disposed of it at a treatment facility.	Long Beach Utilities was dispatched to respond to a sewer spill. They relieved the stoppage with a stoppage nozzle and, upon arrival, sandbagged the area to contain the spill at the street curb and gutter. LA County Public Works was contacted to check and locate a storm drain manhole where the spill ended. They performed a confined space entry to flush and vacuum the sewage from the conveyance system.	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer	We will perform a repair on an 8  VCP pipeline that we believe caused the backup. A void was discovered during the CCTV inspection, and the repair will take place over the next two weeks.	During the post CCTV inspection a damage was located in the pipe, and a repair pocket was created. Repairs will be performed as soon as possible. We have hydrojetted the main line and will continue monitoring this line until repairs are completed.	On August 3rd, a resident discovered a spill and contacted Long Beach Utilities Dispatch. Upon arrival, the crew discovered a positive spill, set up containment, cleared the blockage, and called Long Beach Fire, Long Beach Health, and LA County Flood Control District. They also assisted in securing the site for contractor Ocean Blue to perform a clean-up and recovery of all sewage. Repairs are scheduled to take place over the next couple of weeks. 	09/03/2023 17:30	Long Beach Utilities conducted a CCTV inspection on the pipe segment and discovered a void with missing soil from the crown of the pipe. Grease deposits were noted at the point of damage as well, but it is believed that loose soil fell into the pipeline, causing the blockage.	N												N													
2	2SSO10179	Active	San Jose City CS	San Jose City	890215	1.2	Certified	Ben Nguyen	Senior Engineer	07-SEP-23	15-SEP-23	15-SEP-23	Category 1 Spill	1185 Campbell Ave San Jose, CA 95126	09/02/2023 13:29	09/02/2023 13:48	09/02/2023 11:00	09/02/2023 17:01	23-6545		The  spill appearance point was a manhole in front of the property at 1185 Campbell Ave	37.348062	-121.929772	Manhole			4750	The spill discharged from the manhole and traveled across the street surface toward curb/gutter and reached a nearby storm inlet.  This storm inlet is connected to the City of San Jose's municipal storm sewer system. The sewage traveled within the storm system to a storm outfall discharging to the Guadalupe River.  See spill boundary map included in the attachments	Y	The spill reached nearby storm drain inlet along Campbell Ave approximately 20ft south east of the spill appearance point.  This storm drain inlet is connected to the City of San Jose's municipal storm sewer system that traveled northeasterly toward an outfall at the Guadalupe River.	23	4727	The sewage reached Guadalupe River while discharging from storm system outfall.  The location of the storm outfall along Guadalupe River is approximately at 37.35394, -121.91220	4727	23	Surface Water		The spill (sewage) traveled along the street curb and gutter from the manhole in front of the 1185 Campbell Ave (spill appearance point). The manhole is identified in 1.d. and 1.e. The spill reached and traveled along the curb and gutter, then entered City's storm inlet and drainage system. The location of the storm drain inlet is identified in 1.f. and 1.g.  he spill reached the nearby surface water Gaudalupe River through a storm outfall discharge point. The storm outfall discharge point is identified in 1.h. and 1.i.	Y	37.347995	-121.929679	37.347867	-121.929538	37.35394	-121.9122			09/02/2023 02:10	Spill volume was estimated by flow-rate volume method using a video taken by the first responder.  The event video was compared with controlled-flow video on file.  Duration was estimated at 190 min at 25 gpm; total of 4750 gallons.  23 gallons was recovered and lost the rest to water way.  	Spill volume was estimated by flow-rate-volume method using the first responder's video.  Event flow rate was compared with controlled flowrate which was about 25 gpm.  Duration was estimate at 190 minutes.  	Pipe Structural Problem/Failure - Installation		Manhole		Vitrified Clay		50	Water reached MS4 and outfall to surface water.  Crew noticed there was already flowing water MS4 and mixed with sewage.  City staff inspected the water way and observed no impact to wild life.  Crew also cleaned water that reached street's curb/gutter and inlets. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Property Owner Notified; Returned Portion of Spill to Sanitary Sewer System		Crew placed sandbags and spill mat to contain water from further entering SD system upon arrival. Crew cleared plug, checked downstream SDs, tested water with ammonia strip at intermittent SD MHs, checked outfall, tested water at outfall, recovered water from street surface, inspected wild life within 24 hrs.  	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Segment will be forwarded to Department of Public Works for slip lining. 	Segment will be forwarded to DPW of slip lining due to multiple fractures locations and defects. Preventive maintenance cycle is shortened.  Segment will be re-video in six months for observation and evaluation. Segment will be put on root intrusion treatment. 	6 month to be re-videod adjust cycle to 4 yrs from 8 yrs preventive maintenance. 	09/13/2023 03:00	Initial cause of SSO was determined to be rag and debris.  After CCTV inspection, staff found pipe fractures at multiple locations.  It was determined that the fractures created an environment for rags and debris to build up.  	N			Guadalupe River 	River			Per the visual inspection and Creek walk conducted on 9/5/2023, there were no observed visual impacts to aquatic life.	Other (specify below)	No public access impact	Valley Water	0	N	N												
4	4SSO10429	Active	Santa Clarita City CS	City of Santa Clarita 	890218	1.1	Certified	Robert Swartz	Sr. CE		24-OCT-23	24-OCT-23	Monthly Category 3 Spill	1294-0066 (22930 Sycamore Creek Drive, Santa Clarita)	09/05/2023 17:37	09/05/2023 18:55	09/05/2023 17:15				CSMD Map Sheet No. 1294 Manhole No. 66 MMS No. 8411109 Manhole overflow out of M/H No. 66	34.44577	-118.53892	Manhole	Manhole No. 66		50	Manhole overflow out of M/H No. 66	Y	Sewage was discharged from a manhole onto the land, resulting in approximately 2 gallons entering the storm drain, all of which was fully recovered. 	2				2	Drainage Conveyance System; Paved Surface		Sewage was discharged from a manhole onto the land, resulting in approximately 2 gallons entering the storm drain, all of which was fully recovered. 	Y	34.44722	-118.53708							09/05/2023 19:05	CWEA SSCSC Manhole Gauge	CWEA SSCSC Manhole Gauge	Fats, Oil and Grease (FOG)		Gravity Mainline		Fiberglass; Vitrified Clay		50	N/A	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Hydro jet equipment was used to break down heavy grease, scale, and calcium deposits inside the mainline, Additionally, the spill area was also cleaned up. 	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below)	Will inspect sewer using CCTV.	Will inspect sewer using CCTV and adjust schedule/method of preventive maintenance to a 90-day frequency. 		09/05/2023 21:48	Will inspect sewer using CCTV to determine if further actions are needed. 		Will inspect sewer using CCTV to determine if further actions are needed. 	11/06/2023 17:00														N/A	Adjust scheduled preventative maintenance to 90 days 	Adjust schedule/method of preventive maintenance to a 90-day frequency.  	N/A	N/A	N/A	N/A	N/A	Will inspect sewer using CCTV to determine if further actions are needed. 	
4	4SSO10429	Active	Santa Clarita City CS	City of Santa Clarita 	890247	1.2	Certified	Robert Swartz	Sr. CE	07-SEP-23	20-SEP-23	20-SEP-23	Category 1 Spill	1333-0091 (22520 Barbacoa Drive, Santa Clarita)	08/31/2023 07:15	08/31/2023 08:12	08/31/2023 07:00		-		CSMD Map Sheet No. 1333 Manhole No. 91 MMS No. 8403246	34.43999	118.52946	Manhole			425	Sewage discharged from Manhole No. 91 into storm drain at 27019 Santa Clarita Road, which leads to PD 0926, Dry Canyon - PD0928 Saugus, Bouquet Canyon Channel (PD 2225). 	Y	Sewage discharged from Manhole No. 91 into storm drain at 27019 Santa Clarita Road, which leads to PD 0926, Dry Canyon - PD0928 Saugus, Bouquet Canyon Channel (PD 2225). 	0	425	Sewage discharged from Manhole No. 91 into storm drain at 27019 Santa Clarita Road, which leads to PD 0926, Dry Canyon - PD0928 Saugus, Bouquet Canyon Channel (PD 2225). 	425	0	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Sewage discharged from Manhole No. 91 into storm drain at 27019 Santa Clarita Road, which leads to PD 0926, Dry Canyon - PD0928 Saugus, Bouquet Canyon Channel (PD 2225). 	Y	34.43971	118.53267							08/31/2023 08:40	CWEA SSCSC Manhole Overflow Gauge	Start time reported by caller. End time reported by responding crew.	Root Intrusion		Gravity Mainline		Vitrified Clay		51	none observed	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow		Upon arrival, the manhole was overflowing. We established containment, employed a penetrated nozzle and a warthog nozzle to dislodge the blockage, effectively clearing a substantial root obstruction. We than cleaned the spill area and promptly notified relevant agencies. 	Added Sewer to Preventive Maintenance Program; Other (specify below)	Additionally, we will conduct a CCTV inspection of the sewer to assess whether any further actions are required. 	Added sewer to preventive maintenance program and we will conduct a CCTV inspection of the sewer to assess whether any further actions are required. 	60-day preventive maintenance program	08/31/2023 08:40	We will conduct a CCTV inspection of the sewer to assess whether any further actions are required. 	Y	We will conduct a CCTV inspection of the sewer to assess whether any further actions are required. 	10/30/2023 07:51	Santa Clara River	River			N/A	Other (specify below)	No impact.	Los Angeles County Flood Control District	0	N	N											We will conduct a CCTV inspection of the sewer to assess whether any further actions are required. 	
2	2SSO10177	Active	San Carlos City CS	San Carlos City	890248	1.3	Certified	Steven J. Machida	Public Works Director	07-SEP-23	14-SEP-23	14-SEP-23	Category 1 Spill	960 Alameda	09/02/2023 17:15	09/02/2023 18:10	09/02/2023 16:15	09/02/2023 19:17	23-5648		Spill started at 960 Alameda De Las Pulgas and traveled in the gutter until it entered CB-934. It traveled down the storm system which had flowing water until it entered a culvert that flowed into Pulgas creek	37.5013453	-122.2529703	Manhole			2950	Spill started at 960 Alameda De Las Pulgas and traveled in the gutter until it entered CB-934. It traveled down the storm system which had flowing water until it entered a culvert that flowed into Pulgas creek	Y	Entered catch basin at Alamda De Las Pulgas and Brittan and traveled all the way down to the culvert at El Camino Real and Brittan which flows into pulgas creek.	12	0	Spill entered Pulgas creek via the channel at Old County road.	2479	471	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water		Spill started at 960 Alameda De Las Pulgas and traveled in the gutter until it entered CB-934. It traveled down the storm system which had flowing water until it entered a culvert that flowed into Pulgas creek	Y	37.49253	-122.26687	37.501623	-122.252695					09/02/2023 20:30	Rate of flow and duration method and area volume metod.	Phone records from dispatch. 	Other (specify below)	CCTV inspection did not find the source of the cause for back up.	Gravity Mainline		Vitrified Clay		75	No visual impact on pulgas creek or the streets and storm system	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Mitigated Effects by setting up the vac while the spill was happening. This stopped approximately 300 gallons from entering the storm drain. After blockage was cleared, cleaned the catch basin and cleaned all of the effected street, curb and gutter.	Inspected Sewer Using CCTV to Determine Cause	Could not find specific cause but pipe should be improved.	Placed on CIP project	N/A	09/02/2023 20:30	CCTVd the segment in the specific area of the blockage but could not find a source of the blockage. No root, grease or large offsets. 	N			Pulgas Creek	Other (specify below)	Creek		No visual impacts	Other (specify below)	Creek is not accessible to the public	NA	0	N	N												
6A	6SSO18094	Active	D.L. Bliss State Park CS	Ca Dept of Parks & Rec Tahoma	890256	1.8	Certified	Graham Payne	Water & Sewer Plant Supervisor	08-SEP-23	11-SEP-23	11-SEP-23	Category 2 Spill	D. L. Bliss State Park - Lighthouse Trailhead	09/07/2023 15:45	09/07/2023 17:00	09/06/2023 13:45	09/08/2023 15:25	23-5782		Lighthouse Trailhead along park entrance road just East of kiosk at D. L. Bliss State Park. Spill originated in Gravity section of the mainline which receives sewage when park is open from the upper section of the campground.  The park is closed for installation of new watermains, and the only sewage being received from the park is from the 8 employees living in the dormitory at the beginning of the system.  This sewage flows down another gravity section of the mainline to a lift station which conveys it across Hwy. 89 and to the high spot within the park where it changes again from force main to gravity which it flows down the mainline to the Tahoe City Public Utilities District and finally along Lake Tahoe.	38.98945	-120.09911	Gravity Mainline		Spill was contained to contractors' trench which took the sewage that discharged because the force main above turned on flowing from the upper part of the broken line back into the lower part of the mainline continuing its sanitary sewer flow to the Tahoe City Public Utilities District main trunk line.	1500	The State of Cal is installing new water line into DL Bliss SP and the contractor assigned to the project hit a gravity sewer main transporting sewage through campground. Contractor said that it was the old water main but the inspector advised him the following day that the steel line was the water and the AC line that he broke was the sewer. The inspector notified Graham Payne of the issue and I shut the sewer force main off for him to complete the repairs.  The main currently only has State Employees on it so per our SCADA system, it only pumped down 2 times over the evening since the break which totals 1500 gal. The sewage flowed from broken pipe into their trench and then back into the pipe.  Distance sewage was in contact with the soil was approximately 8 feet.  Contractor is in the process of repairing the line. The line when repaired will be inspected and placed back into service.  Soil from the spill is being removed and will be transported to an appropriate disposal facility.	N						1450	Other (specify below)	Sewage was confined to the trench that the contractor was digging to install a new water line.	The State of Cal is installing new water line into DL Bliss SP and the contractor assigned to the project hit a gravity sewer main transporting sewage through campground. Contractor said that it was the old water main, but the inspector advised him the following day that the steel line was the water and the AC line that he broke was the sewer. The inspector notified Graham Payne of the issue and I shut the sewer force main off for him to complete the repairs.  The main currently only has State Employees on it so per our SCADA system, it only pumped down 2 times over the evening since the break which totals 1500 gal. The sewage flowed from broken pipe into their trench and then back into the pipe.  Distance sewage was in contact with the soil was approximately 8 feet.  Contractor is in the process of repairing the line. The line when repaired will be inspected and placed back into service.  Soil from the spill is being removed and will be transported to an appropriate disposal facility.	Y	38.98928	-120.09894							09/08/2023 17:20	Spill volumes were calculated by the lift station feeding this section of pipe.  Rough calculations of the wet well pump down zone and the number of times that the lift station operated during the spill time.  Lift station run times are documented on the States SCADA system, so we know how many times the lift station operated.	Methodologies and assumptions of data estimates were from calculating the Diameter of the lift station holding tank and the pump down footage multiplied by 7.48 gallons per cubic foot of space.	Damage by Others Not Related to Collection System Construction/Maintenance		Gravity Mainline		Other (specify below)	Asbestos Concrete (AC)	40	Spill was contained in the trench which the contractor was excavating to install new water line, so no sewage made it to any conveyance, drainage or surface.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Spill was contained to the ditch which the contractor was digging to install new water line.  Immediately upon being notified of the spill, the operator shut down the lift station isolating the force and gravity main.  the section of pipe damaged was removed and the ends cut square.  The l pipe was cleaned and a new section of SDR35 pipe and FERNCO fittings were installed.  Force main was then placed back into service and the gravity section which was broken was monitored for leaks and issues.  The contractor was then instructed that all soil within the area of the spill that had been contaminated must be removed and transported off site to an appropriate disposal facility.  Photos of the soil removal was documented by the on-site state inspector and contractor was advised to obtain appropriate chain of custody paperwork to trace the contaminated soils.	Other (specify below); Repaired Facilities or Replaced Defect	Contractor was reprimanded and instructed to pay attention to USAN markings to assure future events would not occur.	Contractor was reprimanded and instructed to pay attention to USAN markings to assure future events would not occur.	Pipe repaired and system placed back on line.	09/11/2023 12:00	The State of California is reviewing the contractors record for issues resulting from this project and it is planned to make a decision later today as to the future of this project.	Y	Contractor has had issues on this project.  Contractor does not seem to be concerned about existing utilities.	09/29/2023 16:30										N												Contractor has had issues on this project.  Contractor does not seem to be concerned about existing utilities.	
2	2SSO10096	Active	Berkeley City Public Works CS	Berkeley City of Public Works	890267	1.4	Certified	Jesus F Sandoval	Public Works Senior Supervisor	11-SEP-23	29-NOV-23	29-NOV-23	Category 1 Spill	2301 Durant Ave	09/10/2023 19:42	09/10/2023 20:30	09/10/2023 19:30	09/11/2023 07:45	23-5819		Spill point was from a sewer clean out in the sidewalk in front of the address, 2301 Durant Ave , Berkeley, Ca.	37.86754	-122.26335	Lateral Clean Out (Private)			30	SPILL CAME OUT OF A CLEAN OUT IN SIDEWALK AND FLOWED INTO A CATCH BASIN IN THE GUTTER.	Y	SPILL ENDED INTO A CATCH BASIN IN THE GUTTER.	15	0	SPILL ENDED INTO A CATCH BASIN IN THE GUTTER.	15	30	Drainage Conveyance System		Storm Catch Basing	Y	37.87534	-122.25831							09/11/2023 01:05	San Diego Chart	San Diego Chart	Pipe Structural Problem/Failure - Controls		Upper Lateral		Vitrified Clay		80	None	N	Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Jet Flush Upper lateral and clean catch basing	Other (specify below)	Home owner repair upper lateral	Home Owner fix the upper lateral	None	09/11/2023 01:05	Damage Sewer Upper lateral	N			N/A	Other (specify below)	Catch Basing	None	No	Temporary Restricted Use		City of Berkeley	0	N	N												
6A	6SSO18094	Active	D.L. Bliss State Park CS	Ca Dept of Parks & Rec Tahoma	890268	1.1	Certified	Graham Payne	Water & Sewer Plant Supervisor		06-OCT-23	06-OCT-23	Monthly Category 3 Spill	D. L. Bliss State Park - Group Camp Area	09/08/2023 16:45	09/08/2023 17:00	09/08/2023 08:00				During the installation of the D. L. Bliss waterline, I was again notified of another sewer main break just below Residence #3 within the park.  We responded out to the site and found that the sewer main line had been hit as on the previous report.  Contractor has not been paying attention to the USA markings within the park during this project.  Contractor repaired the line, and the contaminated soil was removed from the trench it was contained to and disposed of per codes.  State will be videoing the lines within the contractors' project area to assure that there are no hidden breaks within the project area.	38.99321	-120.10583	Gravity Mainline			200	Spill was contained to the trench which the contractor was working in.  No sewage flowed onto pavement or other surfaces.	N						175	Other (specify below)	Trench dug for new waterline installation	During the installation of the D. L. Bliss waterline, I was again notified of another sewer main break just below Residence #3 within the park.  We responded out to the site and found that the sewer main line had been hit as on the previous report.  Contractor has not been paying attention to the USA markings within the park during this project.  Contractor repaired the line, and the contaminated soil was removed from the trench it was contained to and disposed of per codes.  State will be videoing the lines within the contractors' project area to assure that there are no hidden breaks within the project area.	Y	38.99345	-120.10544							09/08/2023 13:45	all soil contaminated was dug up until dry soil was reached and then disposed of.	Calculations made by length of time force main transporting sewage to the area and investigation at the site.	Damage by Others Not Related to Collection System Construction/Maintenance		Gravity Mainline		Concrete		40	Contaminate impacted soil in trench where contractor was working and was removed and disposed of.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		All sewage was contained to the contractors' trench and flowed back into broken pipe. 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Contractor was reprimanded.	Work being performed by this contractor is under review by the State of California, Dept. of Parks and Recreation		09/08/2023 22:45	See above		Contractor will be monitored if allowed to continue contract.  Still to be determined.	10/06/2023 17:00														Due to the number of broken sewer lines broken by contractor, contractor will be reprimanded and fined for the issues.	N/A	N/A	Sewer lines damaged by the contractor have been replaced and tested.	Line was inspected and tested after repairs were made.  We will be Videoing the line to verify repairs from the inside.	N/A	Breakages were documented by inspectors and State Project Managers.	N/A	Contractor will be monitored if allowed to continue contract.  Still to be determined.	
2	2SSO10154	Active	Mill Valley City CS	Mill Valley City	890272	1.6	Certified	Andrew Poster	Director of Public Works		12-SEP-23	12-SEP-23	Monthly Category 3 Spill	387 Vista Linda Drive	09/08/2023 09:50	09/08/2023 10:03	09/08/2023 08:00				LG3	37.91566	-122.53599	Manhole			67	Discharge was on golf course / lawn area (280 Buena Vista Ave). 	N						40	Unpaved Surface		Discharge was on golf course / lawn area (280 Buena Vista Ave). 	Y	37.91544	-122.53627							09/08/2023 10:28	Area/Volume: Ponded Sewage Method	Cell phone clock / call history timestamp. Area/Volume: Ponded Sewage Method	Debris-wipes/Non-disposables	Wipes and grit	Gravity Mainline		Vitrified Clay		45	Sewage onto grass / unpaved surface. 	N	Cleaned Up (specify below); Contained All or Portion of Spill		Contained and cleaned with vactor truck. 	Other (specify below)	Removed wipes.	Removed wipes.		09/08/2023 15:27	N/A		N/A	09/08/2023 10:28														N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District	890278	1.6	Certified	John J. Hough	San Dist. Superintendent	13-SEP-23	21-SEP-23	21-SEP-23	Category 1 Spill	332477	09/08/2023 09:10	09/08/2023 09:47	09/08/2023 09:00		-		See attached Spill Map.	38.60322	-121.38587	Manhole			98	See attached Spill Map.	Y	See attached Spill Map.	0	0	See attached Spill Map.	81	98	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		See attached Spill Map.	Y	38.60321	-121.38589	38.60318	-121.38582	38.6032	-121.38479	38.60604	-121.38934	09/08/2023 10:10	See attached Spill Volume Estimation.	See attached Spill Volume Estimation.	Root Intrusion		Gravity Mainline		Vitrified Clay		62	No observed impacts of the spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	Notified Sacramento County Department of Water Resources Drainage O&M.	See attached Description of Event.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected the lower lateral with CCTV on September 11, 2023. Based on the findings, SacSewer adjusted the preventative maintenance schedule from a 6-month schedule to a 3-month schedule.	Adjusted preventative maintenance schedule on 9/12/2023.	09/08/2023 21:00	See attached Description of Event.	N			Strong Ranch Slough	Slough			No observed impacts on aquatic life.	Other (specify below)	The impacted surface water is fenced and not accessible to the public.	NA	0	N	N												
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	890291	1.1	Certified	Ameal McLaurin	Sewer Supervisor 2		14-SEP-23	14-SEP-23	Monthly Category 3 Spill	6018 Mac Arthur Blvd., Oakland Ca	09/01/2023 10:22	09/01/2023 11:40	08/31/2023 22:00				Lateral Clean Out (Private) discharged from the inside in the back of the building, the plumber pumped out the sewage to the outside concrete path on the right side of the building where it flowed onto the public sidewalk and into the gutter area.	37.77588	-122.18254	Lateral Clean Out (Private)			89	Lateral Clean Out (Private) discharged from the inside in the back of the building, the plumber pumped out the sewage to the outside concrete path on the right side of the building where it flowed onto the public sidewalk and into the gutter area.	N						89	Paved Surface; Street/Curb and Gutter (2 3)		Lateral Clean Out (Private) discharged from the inside in the back of the building, the plumber pumped out the sewage to the outside concrete path on the right side of the building where it flowed onto the public sidewalk and into the gutter area.										09/01/2023 11:55	Calculated volumes: Walkway 18'L x 3'W x .02'D x 7.48-Gal = 4 Gallons Sidewalk 12'L x 9'Wx .02'D x 7.48-Gal = 16 Gallons Gutter 26'L x 1'W x .12'D x 7.48-Gal = 23 Gallons  Puddle in Gutter: 9'L x 4'W x .17D x 7.48-Gal =46 Gallons Total Spill: 4 + 16 + 23 + 46 = 89 Gallons	Start time was provided by property owner. End time was provided by responding crew when crew released the blockage from the gravity mainline.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		90	Lateral Clean Out (Private) discharged from the inside in the back of the building, the plumber pumped out the sewage to the outside concrete path on the right side of the building where it flowed onto the public sidewalk and into the gutter area.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Crew washed down, disinfected the area of the spill, and vacuumed all the sewage and water utilized to clean and wash down the affected areas.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Gravity mainline will be placed on high frequency 6-month routine preventative maintenance program.		09/11/2023 14:52	CCTV crew assisted by Hydro crew for post overflow inspection found grease, light roots, and debris to have been the cause of the overflow.		Complete inspection of the mainline was completed 9/11/23.	09/11/2023 14:52														N/A	Gravity mainline will be placed on high frequency 6-month routine preventative maintenance program.	Gravity mainline will be placed on high frequency 6-month routine preventative maintenance program.	N/A	Complete inspection of the mainline was completed 9/11/23.	N/A	High Frequency Routine maintenance six months routine. Work # 1459296	 High frequency 6-month routine preventative maintenance program WO #1459296.	Complete inspection of the mainline was completed 9/11/23.	
2	2SSO10142	Active	Town Of Hillsborough CS	Town Of Hillsborough	890292	1.2	Certified	Rick-Gabriel Pina	Superintendent 		02-APR-24	02-APR-24	Monthly Category 3 Spill	30 Warm Canyon Way	09/05/2023 11:45	09/05/2023 12:20	09/05/2023 11:30				Spill from manhole in the street	37.55322	-122.36797	Manhole			111	Spill from manhole ran down gutter to catch basin. 	Y	Spill was contained in catch basin due to lots of dirt and leaves inside.	111				111	Drainage Conveyance System		Spill from manhole ran down gutter to catch basin that was contained inside from dirt and leaves.		37.55319	-122.36801							09/05/2023 13:02	Measured Volume Method	Passerby notice and called in. 	Root Intrusion		Gravity Mainline		Vitrified Clay		63	Spilled to catch basin collected inside was all vacuum out and washed.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		got called out went setup vacuum while another crew restore flow, cleaned up location and disinfected area.	Inspected Sewer Using CCTV to Determine Cause	Place Smart Cover on manhole lid	Place Smart Cover on manhole lid		09/05/2023 13:02	CCTV after Spill found three sections of root intrusion one coming from private lateral, so we placed Smart cover to notify was before spill occurs.		no	09/05/2023 13:02														no	Place Smart Cover on manhole lid to notify us when sewer level rises.	Place Smart Cover on manhole lid	will be placed on C.I.P. list	CCTV after Spill	on List	on our Smart cover system	On our Smart Cover system for Pre-Spill response	no	
2	2SSO10179	Active	San Jose City CS	San Jose City	890301	1.1	Certified	Ben Nguyen	Senior Engineer		30-SEP-23	30-SEP-23	Monthly Category 3 Spill	E San Salvador and S 8th St San Jose, CA 95112	08/07/2023 08:08	08/07/2023 08:35	08/07/2023 06:00				The reporting party at E San Salvador and S 8th St called noticing sewer spill coming from the grease trap at 390 S 8th St. Sewage spilled onto the unpaved area around the grease trap.  The spill did not reach a catch basin connected to MS4 or drainage system.	37.33381	-121.87846	Other (specify below)	Grease trap from San Jose State University Dining Commons located at 390 S 8th Street. 		916	The spill discharged and was contained around the grease trap at 390 S 8th St.  The spill was puddled in a open unpaved area.  The spill did not reach a catch basin connected to MS4 or drainage system.	N						916	Unpaved Surface		The spill puddle on the unpaved area and percolated to the ground surrounding the grease trap at 390 S 8th St.  	Y	37.33381	-121.87846							08/07/2023 10:38	The spill was estimated using a measurements of the spill boundary. The First Responder documented by taking pictures of the spill area.  Dimensions of the spill boundary were estimated during responding activities. These dimensions were used to estimate the spill volume. All the spill volume was contained, cleaned up, and returned to the collection system.  Majority of the spill was assumed to be percolated in to the unpaved area.  	The methodology used to estimate the spill volume was area measurements of the spill recorded by the first responder.  The First Responder took video and pictures of the spill area.  Crew used tape measure and measuring wheel to measure the spill area and water depth. These dimensions were used to estimate the spill volume.  The total estimated spill volume and information from the Reporting Party (RP) were used to assume a reasonable start time.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		85	The spill puddled on surface and percolated to the surrounding unpaved area and did not travel outside of the dirt area which was away from a sidewalk.  There were no observed impacts to the public sidewalk, roadway, nor nearby waterways.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		The Crew set up equipment to clear the plug.  A private plumber contracted by the San Jose State University performed clean up of the puddle with assistant from crew.  Crew place orange cones and barricades to keep the public out of the impact area.  	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause		Corrective actions for the spill include the following:  1. Conduct FOG outreach by distributing Grease Flyers to the nearby residents. 2. Revise problem pipe mainline cleaning cycle from 4 years to 6 months. 3. Re-CCTV the problem pipe mainline to assess issues in 6 Months to identify potential blockages or grease buildups.		08/23/2023 15:00	Crew used basket was used to collect the grease and debris as part of the plug clearing.  Initial finding of SSO cause was grease blockage.  After conducting a follow up CCTV of the sanitary mainline, there were no other significant observations or defects in the pipe that would've contributed to the blockage. Therefore, it was determined that grease (FOG) was the primary cause of the blockage and spill.		Pipe defect was repaired. There is not on-going investigation.  	08/23/2023 15:00														Not applicable. 	The system modifications to the O & M program include the following: 1. Revise problem pipe mainline cleaning cycle from 4 years to 6 months 2. Re-CCTV the problem pipe mainline to assess issues in 6 months to identify potential blockages or grease buildups.	Revise problem pipe mainline cleaning cycle from 4 years to 6 months	Not planned rehab. 	CCTV condition assessment of the problem pipe segment and nearby upstream and downstream segments were conducted the following day.   The problem pipe segment with a broken pipe void visible was repaired by the City's in-house repair maintenance crew.	No capital improvements were required based on the CCTV condition assessment.	The immediate system modifications to the O & M program include the following:  1. Revise problem pipe mainline cleaning cycle from 4 years to 6 months 2. Grease awareness flyers were distributed in the surrounding community	No modifications to the spill response activities were made	Pipe defect was repaired. There is not on-going investigation.  	
4	4SSO11372	Active	Unincorporated County Area CSMD/Las Virgenes Tapia CS	Los Angeles Cnty DPW	890306	1.2	Certified	Robert Swartz	Sr. CE	14-SEP-23	12-OCT-23	12-OCT-23	Category 1 Spill	1191-0084 (23961 Craftsman Road, Calabasas)	09/08/2023 15:08	09/08/2023 16:35	09/08/2023 12:36	09/08/2023 17:50	23-5786		CSMD Map Sheet No. 1191 Manhole No. 84 MMS No. 8423826 Manhole No. 84 was overflowing.	34.15622	-118.64972	Manhole	Manhole No. 84		2690	Sewage was flowing from Manhole No. 84 onto the street and soil. A portion of the sewage spill entered a storm drain located west of 23961 Craftsman Road.  	Y	The storm drain feeds into Oakfield Drain, which eventually empties into Calabasas Creek and, ultimately, into the LA River.  	1000	0	A portion of the sewage spill entered a storm drain located west of 23961 Craftsman Road. This storm drain feeds into Oakfield Drain, which eventually empties into Calabasas Creek and, ultimately, into the LA River. 	600	0	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Unpaved Surface		Sewage was flowing from Manhole No. 84 onto the street and soil. A portion of the sewage spill entered a storm drain located west of 23961 Craftsman Road. This storm drain feeds into Oakfield Drain, which eventually empties into Calabasas Creek and, ultimately, into the LA River.   	N									09/08/2023 17:05	CWEA SSCSC Manhole Gauge	CWEA SSCSC Manhole Gauge	Damage by Others Not Related to Collection System Construction/Maintenance; Fats, Oil and Grease (FOG); Other (specify below)	The causes were rock debris and grease buildup. Manhole No. 84 was damaged, with the ring and cover shifted by 9 inches, creating an opening for debris. 	Manhole		Other (specify below)	Material ABSCP	39	N/A	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow		Upon arrival, we encountered an overflowing manhole (MH 84). We cleared the mainline blockage, caused by a combination of rock debris and grease, using a high-pressure Warthog nozzle. Afterward, the area was thoroughly cleaned, and all materials were recovered using a vacuum truck. Relevant agencies were promptly notified of the incident. 	Other (specify below)	Will inspect the sewer using CCTV to determine if further action is needed. Repair or replace defective assets. 	Will inspect the sewer using CCTV to determine if further action is needed. Repair or replace defective assets. 	N/A	09/08/2023 20:30	Will inspect the sewer using CCTV to determine if further action is needed. Repair or replace defective assets. 	Y	Efforts to determine party responsible for damage to MH 84	11/06/2023 09:47	Los Angeles River	River			N/A	Other (specify below)	No impact.	Army Corps	0	N	N											Efforts to determine party responsible for damage to MH 84	
5S	5SSO10863	Active	Amador City CS	Amador City	890312	1.3	Certified	David Groth	City Manager	12-SEP-23	24-SEP-23	24-SEP-23	Category 2 Spill	10300 Fleehart Street	09/09/2023 19:30	09/09/2023 20:00	09/09/2023 17:00	09/11/2023 17:30	23-5838		Spill originated above the City's force main.  The main is approximately 8 to 9 feet deep at this location.  Seepage above ground was noticed by the home owner at the location of origination in his driveway.  Cause of seepage could not be determined until line was excavated.	38.417383	120.832557	Force Main			2500	Spill was directed to an open grassy field on the property adjacent to the point of the spill appearance. Spill width was approximately 30'.  Spill length was approximately 70'.	N						1300	Unpaved Surface		The spill event destinations were a graveled driveway and parking area on the homeowner's property,  the bank of the driveway/parking area, and an open grassy field to the south of the residential property.	Y	38.417297	120.832803	38.417425	120.832614	38.48722	120.8325	38.41722	120.832747	09/11/2023 14:55	The spill volume was estimated by calculating the volume of the force main above the point of the pipe failure to the high point that is controlled by a check valve upstream of the controlling high point. (3540 lin. ft. of 4  diameter force main=2310 gallons. Added 190 gallons for initial weeping liquid over bank).  The volume of the spill recovered was calculated using a portion of the 800 gallon VAC truck used.  It was filled once (650 gallon portion used for recovered volume) and partially filled a second time (550 gallon portion use for recovered volume). VAC truck stopped operating prior to completion of dewatering of excavation. Additionally, a septic hauler pumped the residence's pump tank during the repair and pumped an estimated 100 gallons out of the excavation.	The City was contacted by the homeowner at 19:30.  The City's representative was on-site at approximately 20:30.  At the initial point of origination liquid was bubbling and weeping out of the ground.  From the spread of the wetted area the estimated spill start time of 17:00 was arrived at.  The spill end time was stated as the time the repair to the force main was completed and tested.	Pipe Structural Problem/Failure - Installation		Force Main		Polyvinyl Chloride (PVC)	Failure occurred within a gasketed double bell repair coupling.  Failure occurred at what appeared to be  a seam in the manufactured part.	35	Spill initially flowed on the surface of the driveway and at a slow rate over the side of the bank at the driveway. Most of this stayed within the soil, but some moved to the grassy field to the south. During excavation of the repair trench the contractor dewatered the excavation with a pump instead of using the VAC truck.  This water was directed to the same area in the grassy field. The effluent in the force main is primarily treated at the City's aeration pond and screened prior to be pumped. There are no solids and just traces of paper.  The discharge infiltrated the soil and traveled on the surface down the slope leaving traces of sludge from the pipe.  Another discharge occurred to the same area when the VAC truck ceased working while emptying  the force main.  The discharge at the end of the operation contained a larger amount of sludge. All of this entered the grassy area in the field and infiltrated the soil. The discharge, except for wet soil, was kept off of the driveway.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow	See comments regarding well in 13a.	The initial portion of the spill was contained in the saturated soil. Initial containment of the spill was hampered by the fact that the homeowner's septic pump tank located just downstream for the spill origination point could not get filled with liquid or have liquid spill into the lid due to  the electrical box location.  The excavated trench (up to 8 feet deep) contained the spill as work progressed. See Item 7. for additional spill information. The grassy field was sprayed with bleach solution on 09/11/2023.  On 09/13/2023 the spill areas in the field were raked, raked materials were hauled away, and a bleach solution was reapplied. The driveway area was repaired and a bleach solution was applied to the driveway/bank on 09/21/2023.  Bleach solution was not applied to the driveway/bank area on 09/11/2023 or 09/13/2023 due to the fact that the homeowner restricted access to the City's person applying the bleach solution.  Other accommodations were made. See Item 13a. regarding well.	Repaired Facilities or Replaced Defect		The spill originated from a broken coupling in the force main. This was repaired with a higher quality coupling.  It is believed that this is the first broken pipe problem on this force main since it was installed in 1975.  There are no records of other pipe repairs. The pressure on the main is visually monitored daily by the treatment facility's operator.  This will continue.	Pipe was repaired as part of the spill corrective actions.	09/22/2023 11:10	The cause of the spill originated from a broken fitting on the force main. A VAC truck was on-site and was being used but better education of the Contractor workers regarding dewatering needs to be completed to emphasize keeping all of the spill contained. Additionally, in the future a larger, more reliable VAC truck needs to be on-site or on call to avoid having to redirect the overflow.	Y	The City is investigating the placement of the repair coupling at the residential pump tank connection in the immediate vicinity of the coupling and the origination point  of the line break/spill.  Additionally, there is a domestic well used for drinking water within approximately 60-70 feet of the origination point of the spill and within approximately 20-30 feet of the bottom edge of the spill area.  At the City's expense, testing of the well is planned for a duration of one year.  Two sets of test samples have already been taken.  The first sample taken on 09/13/23 has been returned with all results being clean.  The City has also authorized the homeowner to contact his well contractor to sanitize the well.  Additional doses of sanitizing will be discussed with the owner, the well contractor, and the Amador County Dept. of Environmental Health.	09/19/2024 13:30										N												The City is investigating the placement of the repair coupling at the residential pump tank connection in the immediate vicinity of the coupling and the origination point  of the line break/spill.  Additionally, there is a domestic well used for drinking water within approximately 60-70 feet of the origination point of the spill and within approximately 20-30 feet of the bottom edge of the spill area.  At the City's expense, testing of the well is planned for a duration of one year.  Two sets of test samples have already been taken.  The first sample taken on 09/13/23 has been returned with all results being clean.  The City has also authorized the homeowner to contact his well contractor to sanitize the well.  Additional doses of sanitizing will be discussed with the owner, the well contractor, and the Amador County Dept. of Environmental Health.	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	890314	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		01-APR-24	01-APR-24	Monthly Category 3 Spill	7616 West Hollywood Boulevard	09/12/2023 18:20	09/12/2023 19:20	09/12/2023 18:20				The initial crew arrived at 7:20 P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.100858	-118.355025	Inside Building or Structure			319	See Attached.	N	None.	0				319	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	34.100858  118.355025		34.100858	118.355025							09/12/2023 19:25	Volume of a spill contained in a rectangular area.   	Length33feet Width31feet Depth0.5inches0.0417feet  42.63ft3319gallons 	Root Intrusion		Gravity Mainline		Vitrified Clay		106	It was estimated that approximately 319 gallons of sewage backed out of the sewer as a result of the blockage, where it entered the property of 7616 Hollywood Boulevard. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. Crew removed the blockage, and the backup ceased at 07:25 PM. The cause of the blockage was root intrusion. All necessary clean-up was then performed.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Pipeline Will Be Placed On Simi-Annual Maintenance Schedule.		09/12/2023 19:25	A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. Crew removed the blockage, and the backup ceased at 07:25 PM. The cause of the blockage was root intrusion.		None.	09/12/2023 19:25														None.	Pipeline Will Be Placed On Simi-Annual Maintenance Schedule.	Pipeline Will Be Placed On Simi-Annual Maintenance Schedule.	Pipeline Scheduled For Remove And Replace Entire Reach.	Pipeline Scheduled For Remove And Replace Entire Reach.	Pipeline Scheduled For Remove And Replace Entire Reach.	Pipeline Scheduled For Remove And Replace Entire Reach.	Pipeline Scheduled For Remove And Replace Entire Reach.	None.	
2	2SSO10113	Active	Pittsburg City CS	Pittsburg City	890326	1.1	Certified	Hilario J Mata	Asst Director of Public Works		21-SEP-23	21-SEP-23	Monthly Category 3 Spill	1100 E Leland RD	09/12/2023 10:28	09/12/2023 10:38	09/12/2023 10:25				The spill was located by the entry/exit gate on the west side of the apartment complex.   	38.00905	-121.87495	Manhole			110	 The was located by the entry/exit gate on the west side of the apartment complex.	N						110	Paved Surface		The spill was located by the entry/exit gate on west of the apartment complex. 										09/12/2023 11:00	Duration and flow rate comparison method	Duration and flow rate comparison method	Fats, Oil and Grease (FOG)		Manhole		Polyvinyl Chloride (PVC)		23	The spill was contained within a 10 feet by 20 feet area near the manhole the spill did not reached the storm drain because crews placed sand bags to block the catch basin grate., 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Set up sandbags and use Vac Con truck to contain spill.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Modify cleaning schedule.		09/12/2023 11:53	Crew CCTVed the sewer line and found heavy grease in the line. We will set up door hangers to inform our residents on how to proper disposed fat, oil and grease. The cleaning schedule will get modify the sewer line will get clean every two months.		Crew CCTVed the sewer line to find the spill cause.	09/19/2023 13:30														N/A	Modify cleaning schedule.	Yes schedule will be adjusted. 	Not at this time.	 N/A	N/A	we need to upload our chronic list showing the affected line.	N/A	Crew CCTVed the sewer line to find the spill cause.	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District	890327	1.1	Certified	David Leamer	Assistant Superintendent		15-SEP-23	15-SEP-23	Monthly Category 3 Spill	331343	08/10/2023 13:09	08/10/2023 13:19	08/10/2023 13:00				See Attachment, Spill Map and Photos	38.46896	-121.42117	Manhole	N/A		245	See Attachment, Spill Map and Photos	Y	See Attachment, Spill Map and Photos	232				235	Drainage Conveyance System; Street/Curb and Gutter (2 3)		See Attachment, Spill Map and Photos	Y	38.46903	-121.42136	38.46664	-121.42725					08/10/2023 13:50	See Attachment, Spill Volume Estimation.	See Attachment, Spill Volume Estimation.	Debris-General		Gravity Mainline		Vitrified Clay		56	No observed impact of spill	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		SacSewer staff broke stoppage in mainline and cleaned pipe, cleaned and recovered affected storm drain assets. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Changed type of cleaning activity	SacSewer inspected mainline with CCTV on August 16, 2023. Based on findings, SacSewer increased preventative cleaning frequency to 24 months beginning 10/25 using a different cleaning method. 		08/10/2023 20:00	Dispatched nearby crew to break stoppage in mainline of grease and debris. Dispatched hydro/vac crew to clean mainline and recover spill from storm drain. Crew to TV mainline after cleaning.  Dispatched spill responder to test storm drain manholes. Crew cleaned from storm drain manhole that tested clean to initial spill point.   		None	08/16/2023 14:30														N/A	SacSewer increased preventive cleaning frequency from (XX) months to (XX) months.	SacSewer increased preventative cleaning frequency to 24 months beginning 10/25 using a different cleaning method. 	N/A	SacSewer inspected mainline with CCTV on August 16, 2023.	N/A	SacSewer increased preventive maintenance frequency and cleaning activity on 9/14/23 to begin 10/25.	None	None	
2	2SSO10209	Active	Union S.D. CS	Union Sanitary District	890328	1.3	Certified	Jose Rodrigues	Collection Services Manager		15-SEP-23	15-SEP-23	Monthly Category 3 Spill	41695 Paseo Padre Pkwy	09/06/2023 07:52	09/06/2023 07:52	09/06/2023 07:50				The spill originated out of a private lateral clean out located at 41695 Paseo Padre Pkwy in the front of the property near the sidewalk.	37.539389	-121.942947	Lateral Clean Out (Private)			164	The spill originated from a private lateral clean out located at 41695 Paseo Padre Pkwy in the front of the property near the sidewalk and traveled 565 feet along the curb and gutter to a storm drain inlet (See attached documents and pictures).	Y	Please see attached documents and pictures.	164				164	Drainage Conveyance System; Street/Curb and Gutter (2 3); Unpaved Surface		The final spill destination was a storm drain inlet located on the corner of Chadbourne Dr. and Higgins Wy.  Lattitude: 37.539026 Longitude: -121.944275	Y	37.539026	-121.944275							09/06/2023 08:00	Both the eyeball method and the measured volume method were used to determine the spill volume estimations (See attached documents and diagrams).	See Attachment 	Operator Error (specify below)	During CCTV operations, USD installed a flow through plug to aid in the visual inspection. the flow through plug backed up the sewer main. It then spilled from the lowpoint which was a private lateral clean out.     	Gravity Mainline		Vitrified Clay		64	See Attachment 	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		See Attachment 	Adjusted Schedule/Method of Preventive Maintenance		The asset comments in our CMMS have been updated to note this structure should be televised either during lower flows or a hydro vacuum truck needs to be used to assist in reducing the flow volume if daytime work is required. Review SOP with employees (See attached Asset Report and updated Asset Comments). 		09/06/2023 10:00	See Attachment 		Review SOP with employees and debrief staff.	09/12/2023 10:00														N/A	The asset comments in our CMMS have been updated to note this structure should be televised either during lower flows or a hydro vacuum truck needs to be used to assist in reducing the flow volume if daytime work is required. Review SOP with employees (See attached Asset Report and updated Asset Comments). 	The asset comments in our CMMS have been updated to note this structure should be televised either during lower flows or a hydro vacuum truck needs to be used to assist in reducing the flow volume if daytime work is required. Review SOP with employees (See attached Asset Report and updated Asset Comments). 	N/A	N/A	N/A	See Attachment 	The asset comments in our CMMS have been updated to note this structure should be televised either during lower flows or a hydro vacuum truck needs to be used to assist in reducing the flow volume if daytime work is required. Review SOP with employees (See attached Asset Report and updated Asset Comments). 	Review SOP with employees and debrief staff.	
7	7SSO10520	Active	Coachella Sd CS	Coachella SD	890329	1.2	Certified	Robert Huerta	Sanitary Superintendent 		18-SEP-23	18-SEP-23	Monthly Category 3 Spill	Avenida Florabunda Street, Rancho Las Flores 	08/21/2023 13:48	08/21/2023 14:14	08/21/2023 13:30				Rancho Las Flores neighborhood at Avenida Florabunda and Calle Tecomaria 24'' manhole MH10842 spill to street curb, gutter, and asphalt.  Spill GPS 33.69371/ -116.19288.  Inflow in sewer system due to the Historical Hurricane Hilary rainstorm (3 to 4 inches of rain). The main lines become overwhelmed by the additional rain water. It filled the sewer line. At capacity, the sewer overflows at manhole. 	33.69371	-116.19288	Manhole			935	24'' manhole MH10842 spill to street curb, gutter, and asphalt. Spill was contained. Spill GPS 33.69371/ -116.19288  to extent 33.69368 /-116.19276. 	N						935	Street/Curb and Gutter (2 3)		24'' manhole MH10842 spill to street curb, gutter, and asphalt. Spill was contained and cleanup. Spill GPS 33.69371/ -116.19288  to destination 33.69368 /-116.19276. 	Y	33.6937	-116.19288	33.69368	-116.19276					08/21/2023 18:30	Estimated Measured Volume: 10 x 30 x 5''/12 = 125 cu ft  X 7.48 = 935 gallons.      Estimation: SSO Volume, Pooled It's Not Your Grandfather's Tools & Techniques by CWEA webniar handout.	�Pooled� or �Ponded� Sewage Estimation: SSO Volume, Pooled It's Not Your Grandfather's Tools & Techniques by CWEA webniar handout. Spill contained. Determine Area (L x W = Area).  	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Gravity Mainline		Polyvinyl Chloride (PVC)		18	No impact to the environment, public or surface water. Impact was blocking road way by traffic control to contain spill and cleanup.  	Y	Returned All Spill to Sanitary Sewer System		All reports of Spills shall be investigated immediately and without delay following notification. Immediately start a record of the date, time, location, duration and amount in gallons of Spill. Assess Manpower and equipment needed to correct problem. Set up traffic control and take action to protect the public from the spill. Take action to stop spill and contain spill as much as possible. Assess Manpower and equipment needed for cleanup. Both vactor trucks on site for cleanup. Conduct thorough cleanup and disinfect spill area. Follow the SSMP in place and all safety procedures.  	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		Inspect and CCTV down stream sewer mainlines. CCTV storm drain to identify if connected to sewer mains. Review and correct manholes to prevent inflow during rain storms. Add sewer asset to preventives maintenance program. Cleaning down stream sewer mains and CCTV. Review the Sewer Master Plan and make all necessary changes and updates to sewer assets. Sanitary sewer system corrective or rehabilitation work. CSD Municipal Code requires that the City standards for the design and construction of new systems be complied with, and it is the ultimate authority of the City Engineer, Utilities Manger, and City staff to determine that new or rehabilitated systems have met all City requirements. These types of projects are required to be accompanied by project plan and profile drawings, and technical specifications prepared by a registered California professional engineer that prepares the bidding and construction documents for the City. 		08/21/2023 22:40	Inflow in sewer system due to the historical Hurricane Hilary rainstorm (3 to 4 inches of rain). The main down stream lines become overwhelmed by the additional rain water. It filled the sewer line. At capacity, the sewer overflows at manhole. Monitor the flow in the Collection System and the Wastewater Treatment Plant WDID 7A330104012		Review assets, mainlines, manholes, segments, future infrastructures. Update SSMP, Sewer Master Plan, and asset management. CSD is organized to efficiently and swiftly respond to abnormal occurrences within the sewer collection system caused by naturally occurring factors related to an aging system. City Management, Utilities Manager, Administration, Engineering, and Maintenance Services is structured to allow for full support of the Superintendent of Sanitation.  These departments in turn support the field operations staff assigned to carry out the field operations and maintenance functions of the Sanitary District (CSD) that will continue to reduce SSOs in compliance with the RWQCB-State Water Resources Control Board (SWRCB) and USEPA goal of eliminating sewer system overflows spills.  	08/22/2023 17:00														Not applicable. No enforcement was taken with this spill. 	Review asset connected to the sewer main. Review and correct manholes to prevent inflow during rain storms. Review the Sewer Master Plan and make all necessary changes and updates to sewer assets.	Add sewer asset to preventives maintenance program. Cleaning down stream sewer mains and CCTV. 	Review the Sewer Master Plan and make all necessary changes and updates to sewer assets. Coachella Sanitary District Municipal Code requires that all sanitary sewer systems, including mains, tie-ins, service laterals, cleanouts, manholes, and other system appurtenances shall be sized, designed, and constructed in accordance with engineering requirements and City Standard Drawings. Ensure proper installation, testing, and inspection of new and rehabilitated sewers (such as new or rehabilitated collector sewers and new or rehabilitated service laterals). sanitary sewer system corrective or rehabilitation work.	Inspect and CCTV down stream sewer mainlines. CCTV storm drain to identify if connected to sewer mains. Review and correct manholes to prevent inflow during rain storms. Ensure proper installation, testing, and inspection of new and rehabilitated sewers (such as new or rehabilitated collector sewers and new or rehabilitated service laterals).	The Sewer Master Plans Calls for recommended Capital Improvements Projects within the Downstream of the spill location. The types of sewer pipeline improvements. The sewer pipeline capacity, and future  capital improvement projects.  	Monitor the management plans provisions continually to ensure that the system is maintained in conformance with the plan.  Changes that are not material or significant are made frequently in the form of administrative enhancements that keep the SSMP a dynamic and up to date document. The SSMP is updated regularly whenever it is found necessary. In addition, the entire plan is distributed biennially for review to ensure that the SSMP has the most current legal authority, response plans, organization charts, equipment lists, and contact/notification information. Once the CSD makes operational, maintenance, management, and administrative changes, the SSMP is then given a peer review by the CSD staff.  	Reviewing the Spill Response Plan & SSMP to see if I need to make any updates that could improve our response during major rainstorms events. We prepared before the rainstorm by having staff meetings, testing backup equipment & pumps, getting both Vactor trucks ready, rotating staff schedule in place, and generator checks with full fuel.  	Review assets, mainlines, manholes, segments, future infrastructures. Update SSMP, Sewer Master Plan, and asset management. CSD is organized to efficiently and swiftly respond to abnormal occurrences within the sewer collection system caused by naturally occurring factors related to an aging system. City Management, Utilities Manager, Administration, Engineering, and Maintenance Services is structured to allow for full support of the Superintendent of Sanitation.  These departments in turn support the field operations staff assigned to carry out the field operations and maintenance functions of the Sanitary District (CSD) that will continue to reduce SSOs in compliance with the RWQCB-State Water Resources Control Board (SWRCB) and USEPA goal of eliminating sewer system overflows spills.  	
2	2SSO10216	Active	West County WW District CS	West County Wastewater District	890331	1.3	Certified	Gordon Times	Collection System Operations Department Manager	13-SEP-23	05-OCT-23	05-OCT-23	Category 2 Spill	5555 Giant Highway	08/29/2023 23:03	08/30/2023 00:35	08/29/2023 22:00	08/30/2023 00:55	23-5550		The spill escaped from a manhole behind the Richmond Country Club about 60ft. Southeast of BNSF Railroad tracks. The spill collected in three bioswales on the North side of Atlas Rd.	37.99499	-122.35034	Force Main			381950	The spill entered a series of storm water infiltration bioswales operated by the City of Richmond for stormwater disposal just North of Atlas Rd. WCW plugged the overflow structure of the final bioswale in the series and no flows reached the Richmond storm drain system or its receiving waters. Crews worked to recover sewage from the bioswales, with a portion of it percolating into the bottom of the bioswales. (See Bioswales Info Attachment).	Y	See Bioswale Entry Photo attachment and Bioswales Info Attachments.	85000	0			85000	Groundwater Infiltration Basin or Facility		The spill entered a series of bioswales operated by the City of Richmond for stormwater disposal. WCW plugged the overflow structure of the final bioswale in the series and no flows reached the Richmond stormdrain system or its receiving waters. Crews worked to recover sewage from the bioswales, with a portion of it percolating into the bottom of the bioswales.	Y	37.9949	-122.35038	37.99698	-122.34839	37.99895	-122.34564			08/30/2023 07:38	After we initially stopped the spill, equipment failure allowed more water to spill the next day. We estimated the spill to have started at approximately 10PM on August 29, and ended when the pump bypass was complete on August 30 at 11:34 AM. During the bypass the pump failed around 9:30 AM and ended at 1:50 PM on august 31. Scada data from the lift stations during the time periods were calculated by the pump run times and GPM. The volume spilled during the pump failure was calculated using the SSCSC MH Overflow gauge at 400GPM. A portion of the spill has been recovered from the bioswales as water collects at the corners. To date, 47-9 yard tanks have been removed totaling approximately 85,000 gallons. (See Tara Hills Scada Data Attachment)	The spill was estimated to have started at 10PM on August 29. The caller called around 11PM and wanted to remain anonymous and wouldn't provide any other details. The lack of solids around the manhole suggested that the spill had recently started. 	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure		Gravity Mainline		Cast Iron		55	The area around the manhole was covered with solids from the spill. Sewage that entered the drainage channel leading to the bioswales seeped into the ground. Water entered all three bioswales and will be removed with vacuum trucks until the operation is complete. There have been no signs of damage to the environment or any animals that live in the bioswales.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		A plug was installed in the overflow drain that leads to the next bioswale allowing us to completely contain the spill in the first three bioswales (See Picture Attached). Contaminated soil in the area around the manhole has been removed and replaced with mulch and rocks. WCW has contracted with ESA (Environmental Site Assessments) to provide an impact report and recommendations for remediation. Once the report is received, WCW will adopt one of the recommendations and move forward with remediation.	Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect		The valve that caused the spill has been repaired. WCW is in the planning stages of assessing, repairing and replacing pipes and valves on this 14,000 ft force main. See below:	1. Repair valve that failed causing spill--Complete 2. High Resolution Testing of force main--Summer 2024 3. Evaluation of data from assessment--September 2024 4. Prioritization of system repairs--December 2024 5. Force Main System Repairs--January 2025--December 2027 	09/14/2023 15:30	The spill response is on-going as we continue to remove water from the bioswales, and remediation is still being planned. The spill was caused by the threads that failed at the bottom of the blow-off valve.	N												N													
5S	5SSO10941	Active	El Dorado Hills CS	El Dorado Irrigation District	890333	1.2	Certified	John Chavers	Collection System Supervisor	13-SEP-23	22-SEP-23	22-SEP-23	Category 1 Spill	EDH-2023-09-06	09/08/2023 13:02	09/13/2023 13:02	09/08/2023 12:55	09/08/2023 14:30	23-5779	21-SEP-23	See Attachment	38.70927	-121.0883	Force Main		See attachment	17425	See attachment	Y	See attachment	17425	0	See attachment	3239	3239	Drainage Conveyance System that discharges to surface water	See attachment	See attachment	Y	38.70927	-121.08818							09/08/2023 20:00	See attachment	See attachment	Pipe Structural Problem/Failure - Installation		Force Main		Ductile Iron		30	See attachment	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	See attachment	See attachment	Repaired Facilities or Replaced Defect	See attachment	See attachment	See attachment	09/09/2023 18:00	See Attachment	N			unnamed creek	Stream/Creek			None	Restricted Public Access		EID staff	14	N	Y	See attachment	See attachment										
4	4SSO10418	Active	Pomona City CS	Pomona City	890335	1.8	Certified	Romell Eutsey	Wastewater System Supervisor		28-SEP-23	28-SEP-23	Monthly Category 3 Spill	600 W. Olive St. Pomona Ca. 91768	09/12/2023 08:00	09/12/2023 08:15	09/12/2023 07:30				Spill was fully contained in a 400ft section of a concrete v-ditch and was fully cleaned up. Could only upload one photo.	34.02998	-117.75502	Manhole			198	 Contained in a 400ft section of v-ditch directly in front of manhole structure.	N						198	Other (specify below); Paved Surface	concrete v-ditch	Spill flowed into concrete v-ditch directly in front of manhole and was fully contained. 	N									09/12/2023 09:00	Counting connection method 11x12x1.50 198 gallons)	Counted all upstream connections 11, then times those connection with estimated flow per parcel 12 gallons per hour, then times the duration of spill 7 30am to 9 00am 1.50hrs. (198 gallons)	Debris-Rags; Root Intrusion		Gravity Mainline		Vitrified Clay		37	Spill was fully contained, and spill did not reach storm drain.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Arrived at location contained spill completely, cleared blockage from mainline, and cleaned up spill.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Placed on high frequency list and will be cleaned once a month, along with annual root foaming.		09/12/2023 16:00	After video inspecting sewer mainline blockage was caused by root intrusion.		there is no ongoing investigation.	09/12/2023 16:00														This spill was not caused by an illicit discharge therefor City of Pomona did not take action against an illicit discharge.	Placed on high frequency list and will be cleaned once a month, along with annual root foaming.	Placed on high frequency list and will be cleaned once a month, along with annual root foaming.	No planned rehabilitation or replacement of sewer asset.	Video inspected sewer mainline to ensure blockage was removed from affected line segment that caused sewer spill.	No planned rehabilitation or capital improvement of sewer asset.	Added to high frequency hotspot list.	Arrived at location contained spill, cleared blockage from mainline, and cleaned up spill.	there is no ongoing investigation.	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	890363	1.2	Certified	Kent Vian	Asst. Deputy Director		30-OCT-23	30-OCT-23	Monthly Category 3 Spill	NOT# 40201010217 2400 56TH ST.	09/14/2023 06:53	09/14/2023 08:09	09/14/2023 05:10				SPILL ORIGINATED FROM A TWO LOCATIONS, A CLEANOUT IN FRONT OF 2400 56TH ST. (GPS COORDINATES 32.73069 * -117.07490) AND INSIDE OF STRUCTURE 2402 56TH ST. (GPS COORDINATES 32.73070 *-117.07516).	32.73069	-117.0749	Inside Building or Structure; Lateral Clean Out (Private)	N/A	N/A	382	SPILL BOUNDARIES INCLUDE THE BACK YARDS OF 2400 56TH ST. AND 2402 56TH ST.	N	N/A	0				363	Building or Structure; Paved Surface; Unpaved Surface	N/A	SPILL APPEARANCE POINT 1- 2400 56TH ST. SEWER OVERFLOWED OUT OF THE CLEAN OUT IN THE DRIVEWAY AND SEWER RAN NORTH, THEN WEST AND SETTLED INTO THE BACKYARD. SPILL APPEARANCE POINT 2- 2402 56TH ST. SEWER OVERFLOWED OUT OF A PIPE ON A WALL LOCATED INSIDE THEN RAN WEST AND SETTLED INTO THE BACKYARD.	Y	32.73056	-117.07501	32.73052	-117.07514					09/14/2023 08:21	VISUAL CALCULATED METHOD	SPILL START TIME ESTIMATION WAS WHEN THE CUSTOMER LIVING AT 2406 56TH ST. WAS WOKEN UP BY SEWER COMING OUT OF THE PIPES INSIDE THEIR HOME.	Debris-General	N/A	Gravity Mainline	N/A	Vitrified Clay	N/A	66	SPILL IMPACTS WERE INSIDE 2 STRUCTURES THAT 1 STRUCTURE HAD PROPERTY DAMAGE AND INTO THE BACK YARD.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	SPILL RESPONSE ACTIVITIES INCLUDED, RELIEVEING A BLOCKAGE IN THE GRAVITY MAIN, TAKING PICTURES OF IMPACTS, BOUNDARY AND ORIGIN POINT OF SPILL. DISPATCHED A RESTORATION CONTRACTOR TO ACCESS DAMAGES AND CLEAN UP INSIDE AND OUTSIDE HOMES.  CCTV MAINS TO DETERMAIN CAUSED AND ADDITIONALLY CLEANED SEWER MAINS.	Inspected Sewer Using CCTV to Determine Cause	N/A	SPILL CORRECTIVE ACTION WILL BE TO MEET WITH PLANNERS AND MANAGEMENT TO ADJUST CLEANING FREQUENCY AND IDENTIFY WHERE DEBRIS ENTERED THE COLLECTION SYSTEM.		09/15/2023 07:15	IT WAS DETERMAINED THAT SLUDGE WAS THE CAUSED THE SPILL.		ONGOING INVESTIGATION EFFORTS TO DETERMAIN WHERE DEBRIS ENTERED THE COLLECTION SYSTEM.	10/01/2023 07:50														N/A	N/A	TBD-TO BE DETERMAINED.	N/A	N/A	N/A	N/A	N/A	ONGOING INVESTIGATION EFFORTS TO DETERMAIN WHERE DEBRIS ENTERED THE COLLECTION SYSTEM.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	890366	1.1	Certified	Ameal McLaurin	Sewer Supervisor 2		18-SEP-23	18-SEP-23	Monthly Category 3 Spill	1999 Harrison Street, Oakland, Ca	09/13/2023 10:05	09/13/2023 10:30	09/13/2023 08:30				Floor drains inside building were overflowing inside the lower floor. The spill was contained and recovered inside the building.	37.80758	-122.26486	Inside Building or Structure			969	Floor drains in various rooms inside the building. The overflow was in the lower floor.	N						955	Building or Structure		Floor drains in various rooms inside the building. The overflow was in the lower floor.										09/13/2023 12:30	Calculated Volumes in every room. Bathroom: 6'L x 4'W x .01'D x 7.48-Gal = 2 Gallons Bathroom: 6'L x 4'W x .01'D x 7.48-Gal = 2 Gallons Room: 17'L x 9'W x .08'D x 7.48-Gal = 92 Gallons Room: 12'L x 9'W x .08'D x 7.48- Gal = 65 Gallons Hallway: 17'L x 11'W x .08'D x 7.48-Gal =112 Gallons Room: 12'L x 9'W x .01'D x 7.48-Gal = 8 Gallons Large room: 29'L x 14'W x .01D x 7.48-Gal = 30 Gallons Room: 18'L x 12'W x .08'D x 7.48-Gal = 129 Gallons Hallway: 30'L x 5'W x .08'D x 7.48-Gal = 90 Gallons Computer room: 16'L x 12'W x .08'D x 7.48-Gal = 115 Gallons Utility room: 6'L x 4'W x .08'D x 7.48-Gal = 14 Gallons Open Area in back: 23'L x 10'W x .01'D x 7.48-Gal = 17 Gallons Large hallway: 36'L x 8'W x .01'D x 7.48-Gal = 22 Gallons Carpeted room: 16'L x 13'W x .08'D x 7.48-Gal = 124 Gallons Room: 13'L x 12'W x .08'D x 7.48-Gal = 93 Gallons Room: 13'L x 7'W x .08'D x 7.48-Gal = 54 Gallons Total Spill: 2+2+92+65+112+8+30+129+90+115+14+17+22+124+93+54= 969 Gal.	Start time was based on witness accounts, The Chief Engineer Tolando Travillin (925) 719-7645. End time was based on responding crews when they cleared the plastic sheet blockage.	Vandalism (specify below)	 Large Plastic Visqueen sheet blockage.	Gravity Mainline		Vitrified Clay	Cured in Place Mainline	13	Floor drains in various rooms inside the building. The overflow was in the lower floor.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	Restoration Company is cleaning the interior of the affected areas.	Restoration Company is recovering the spill and cleaning the interior of the affected areas.	Added Sewer to Preventive Maintenance Program		Gravity Mainline will be placed on 6 Month High Maintenance Program. By placing the line on a six-month high maintenance, it will allow us to service line more throughout the course of the year, which will lessen the probability of overflows.		09/13/2023 08:30	Nine hundred and sixty-nine gallons overflowed from the floor drains inside of the building at various locations. Plastic was the cause of the blockage. Someone dumped large amounts of plastic in the sewer main causing the obstruction.		Our investigation process is complete at this time. Line will be placed on six-month High frequency until further notice. 	09/20/2023 08:30														N/A	Gravity Mainline will be placed on 6 Month High Maintenance Program.	Gravity Mainline will be placed on 6 Month High Maintenance Program.	N/A	Sewer main was video inspected to check for further blockages.	N/A	Gravity Mainline will be placed on 6 Month High Maintenance Program WO # 1460318.	Gravity Mainline will be placed on 6 Month High Maintenance Program WO # 1460318.	Our investigation process is complete at this time. Line will be placed on six-month High frequency until further notice. 	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	890386	1.4	Certified	Ameal McLaurin	Sewer Supervisor 2		18-SEP-23	18-SEP-23	Monthly Category 3 Spill	3240 62nd Avenue, Oakland Ca	09/11/2023 07:20	09/11/2023 08:15	09/09/2023 22:00				Floor drain overflowed into the basement from the building/structure.	37.7746	-122.18157	Inside Building or Structure	From the floor drain in the basement.		101	The basement measuring 9'L x 6'W was affected by the spill.	N						101	Building or Structure		The basement measuring 9'L x 6'W was affected by the spill.										09/11/2023 11:00	Calculated Volumes inside the basement: 9'L x 6'W x .25'D x 7.48-Gal = 101 Gallons	Start time was based on witness account: Tyson Toscano (925) 595-6714. End time was based on responding crews when they cleared the blockage in the gravity mainline.	Collection System Maintenance Failure (specify below)	Broken mainline.	Gravity Mainline		Vitrified Clay		90	Basement flooded.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	Property owner was provided with a claim packet for Restoration Company for complete cleanup.	Water flowed back into the floor drain when the mainline blockage was cleared. A claim packet was provided to the property owner to have a restoration Company to clean and disinfect the affected area.	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Dig tag WO # 1459362 was created for crew to dig and repair mainline.	Dig tag WO # 1459362 was created for crew to dig and repair mainline.		09/12/2023 08:06	Broken mainline was the cause of paper and debris getting caught on the broken pieces of clay pipe inside the main.		N/A	09/12/2023 08:06														N/A	Dig tag WO # 1459362 was created for crew to dig and repair mainline.	Dig tag WO # 1459362 was created for crew to dig and repair mainline..	Dig tag WO # 1459362 was created for crew to dig and repair mainline.	CCTV inspection found the mainline broken. Dig tag WO # 1459362 was created for crew to dig and repair mainline.	N/A	CCTV inspection found the mainline broken. Dig tag WO # 1459362 was created for crew to dig and repair mainline.	Dig tag WO # 1459362 was created for crew to dig and repair mainline.	N/A	
5S	5SSO11040	Active	Riverbank CS	Riverbank City	890388	1.1	Certified	Cody Bridgewater	Director of Public Works		18-SEP-23	18-SEP-23	Monthly Category 3 Spill	Coad Lane	09/14/2023 17:11	09/14/2023 17:25	09/14/2023 15:00				Spill from manhole located in front of 6025 Coad Lane	37.72648	-120.94813	Manhole			364	Flow from manhole pick holes (one 1/2  and one 1  about 1/4  tall) flowed into street and north along gutter pan, approximately 3  wide, 1/2  deep, 135 feet in total length	Y	gutter pan, Drainage inlet, storm drain line	364				364	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		spill entered into a drainage inlet grate at 6031 Coad Lane, recovered from storm drain manhole at 6100 Coad Lane	Y	37.72783	-120.9482							09/14/2023 17:38	Gutter: .04 x.25 x135'x7.48 gal = 10 gallons Pick hole calcs: 1/2  pickhole: 0.47gpm x 158 min = 74.26 1  pickhole: 1.77 gpm x 158 min = 279.66  Total: 10 + 74.26 + 279.66 = 363.92 	Orange County SSO Flow Estimation Guide	Debris-Rags; Debris-wipes/Non-disposables		Gravity Mainline		Vitrified Clay		40	approximately 364 gallons flowed into the street, gutter, and adjacent storm drain main	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Upon arrival, photos of spill were taken for volume estimation and records purposes. Staff relieved plug in mainline with Vac-Con truck and cleaned main line. Wastewater was washed from street/gutter toward vacuum unit and removed from street. Vaccum unit removed wastewater from nearby storm drain line, and disposed in city sewer	Added Sewer to Preventive Maintenance Program		Will increase cleaning frequency		09/14/2023 18:10	plug was due to excessive rags/wipes		Will monitor and clean on a monthly basis	09/14/2023 18:30														not applicable	increased cleaning frequency	will continue to monitor, move to monthly cleaning basis	not applicable	not applicable	not applicable	not applicable	not applicable	Will monitor and clean on a monthly basis	
5F	5SSO10730	Active	Ford City-Taft Heights CS	Kern County Public Works Department	890392	1.2	Certified	jesus uribe	Wastewater Specialist		19-SEP-23	19-SEP-23	Monthly Category 3 Spill	FCTH cedar st lift station 	09/15/2023 18:00	09/15/2023 19:00	09/15/2023 17:30				lift station pumps were not working properly causing flow to back up in system spilling out from upstream manhole#6019	35.15623	-119.44966	Manhole			240	Spill around manhole #6019 was in a paved roadway.	N		0				200	Paved Surface		spill came out of manhole cover and pooled over area around cover. 	Y	35.15614	-119.44975	35.15624	-119.44957					09/15/2023 18:45	 Approximate area, 20ft X 20ft X .08ft X 7.48= 240gal. spill was confined in area due to roadway being on bottom end of road with sidewalk barricading area. most of spill was able to be recovered and the rest evaporated due to high temps. 	took area length times with times height of spill, got a phone call at 6pm from apartment complex manager that they noticed water leaking out of manhole and was described as  small puddle . Flow in that area is relatively low and only peaks at around 7AM and 6PM. 	Pump Station Failure - Mechanical; Pump Station Failure - Power		Pump Station - Power		Concrete		30	partial roadway was blocked off 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		arrived with hydrovac and vacuumed all wastewater in roadway, restored power to lift station and pumped all backed up flow, then disinfected area 	Repaired Facilities or Replaced Defect		reset breaker at pump station. 		09/15/2023 20:30	debris caused blockage in pump causing it to trip breaker, and flow backed up/ spilled out of upstream manhole. vacuumed street and jetted line after correcting electrical panel to pump station.		no further investigation needed.	09/15/2023 20:30														none taken.	more frequent inspections to lift station.	NA	None.	No repairs needed. 	NA	no system modification needed.	Reset breaker, jetted line at blockage area to prevent flow from further blockage 	no further investigation needed.	
2	2SSO10212	Active	Vallejo Sfcd CS	Vallejo Flood & Wastewater District (formerly Vallejo San & Flood Control District)	890396	1.2	Certified	Justin Keating	Director of Field Operations		18-SEP-23	18-SEP-23	Monthly Category 3 Spill	2112 Illinois	08/10/2023 10:58	08/10/2023 11:05	08/09/2023 08:00				2112 Illinois Street Vallejo, CA 94590	38.11173	-122.23079	Lateral Clean Out (Private)			650	Spill discharged from private lateral cleanout.	N						650	Paved Surface; Street/Curb and Gutter (2 3)		Walkway, sidewalk, street/gutter.										08/10/2023 11:15	Measured Volume Method: 3 separate areas. L x W x D = 349.27 Gallons.	Measured Volume Method: 3 separate areas. L x W x D = 349.27 Gallons. Cleanout was not actively overflowing at arrival time. Caller stated seeing spill the prior morning.	Vandalism (specify below)	Follow up investigation found sticks and yard waste debris inside sewer main. 	Gravity Mainline		Vitrified Clay		69	Impacted concrete walkway, sidewalk, curb/gutter.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Cleared blocked, cleaned area with hydro-jet and vacuum truck.	Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Repaired Facilities or Replaced Defect	Installed locking manhole cover.	Installed locking manhole cover.		08/10/2023 11:45	CCTV Inspection found sticks and yard waste inside sewer main.		None.	08/14/2023 11:28														N/A	Installed locking manhole cover.	Existing schedule in place.	None	Installed locking manhole cover.	None	N/A	N/A	None.	
3	3SSO10250	Active	Guadalupe City CS	Guadalupe City	890398	1.1	Certified	David R Miklas	Wastewater Supervisor		27-MAR-24	27-MAR-24	Monthly Category 3 Spill	7th Street near Campodonico Ave	09/13/2023 18:35	09/13/2023 18:57	09/13/2023 18:00				The spill was from a manhole in the force main on 7th Street and bubbling up from the dirt next to the manhole.	34.966762	-120.575367	Force Main; Manhole		We found the ring of the manhole had separated and was letting water out from the side.	450	The spill was contained to the dirt lot at 4659 7th street in Guadalupe, CA. It covered about 992 square feet and soaked into the dirt.	N						5	Paved Surface; Unpaved Surface		The spill was contained to the dirt lot at 4659 7th street in Guadalupe, CA. It covered about 992 square feet and soaked into the dirt.	Y	34.96675	-120.57536							09/13/2023 18:46	Spill area of 992 square feet soaked to an average depth of 4 inches equals 331 cubic feet. Multiplied by 7.48 gallons per cubic foot equals 2476 gallons of saturated soil. Using 18% as a rough estimate to calculate the soil moisture leaves 445 gallons of wastewater. Adding 5 gallons of wastewater recovered from the street gives 450 gallons spilled.	The water department was notified of water bubbling up at about 18:05. They investigated and found it to be wastewater. They notified other public works departments. The streets department was able to turn off the lift station at 18:40. That lift station has short run times of about 5 minutes. At that time of day it has fairly short fill times of about 30 minutes. If it was running when the first notification happened, it could not have been running long before hand. It had to have stopped and started again before the Streets department cut power to the station.	Debris-General; Pipe Structural Problem/Failure - Controls		Force Main		Cast Iron		33	The spill was contained to a vacant lot and soaked into the ground. Very little was left on the pavement and manhole lid.	N	Cleaned Up (specify below); Other (specify below)	replaced force main and manhole ring and lid.	Wastewater staff contacted a contractor to jet the line and clean up the spill. They were able to vacuum a few gallons from the street and manhole lid. Most of the spill was soaked into the dirt of the lot the manhole is in. After many attempts to jet the line, the vacuum line was put into the sewer main and removed some debris. The small jetter line was able to get through. The larger jetter line was not able to get through the line. Using video equipment, the contractor was able to determine the 4� main line was constricted to about 1�. This was not enough space to let the lift station run without spilling. The lift station was left off and its wet well was pumped out with pumper trucks every time it filled. On Thursday 9/14/23 the contractor attempted to clear the line with a mechanical rodder. Again, the small 1� head was able to get through but a larger 2� head was not. It was decided to replace the 4� line with the constriction and the manhole ring and lid.	Repaired Facilities or Replaced Defect		Replacement work was completed on Friday 9/15/23. 		09/15/2023 19:00	Wastewater staff contacted a contractor to jet the line and clean up the spill. They were able to vacuum a few gallons from the street and manhole lid. Most of the spill was soaked into the dirt of the lot the manhole is in. After many attempts to jet the line, the vacuum line was put into the sewer main and removed some debris. The small jetter line was able to get through. The larger jetter line was not able to get through the line. Using video equipment, the contractor was able to determine the 4� main line was constricted to about 1�. This was not enough space to let the lift station run without spilling. The lift station was left off and its wet well was pumped out with pumper trucks every time it filled. On Thursday 9/14/23 the contractor attempted to clear the line with a mechanical rodder. Again, the small 1� head was able to get through but a larger 2� head was not. It was decided to replace the 4� line with the constriction and the manhole ring and lid.		none	09/18/2023 11:42														none	Replacement work was completed on Friday 9/15/23. 	Video of line at least every 5 years.	Replacement work was completed on Friday 9/15/23. 	Replacement work was completed on Friday 9/15/23. 	Replacement work was completed on Friday 9/15/23. 	Replacement work was completed on Friday 9/15/23. 	Replacement work was completed on Friday 9/15/23. 	none	
2	2SSO10172	Active	Ross Valley Sanitary District CS	Ross Valley SD	890399	1.2	Certified	Paul Bruemmer	O&M Manager 	19-SEP-23	03-OCT-23	03-OCT-23	Category 1 Spill	27 Fern Rd, Kentfield CA 	09/14/2023 11:27	09/14/2023 11:36	09/12/2023 10:08	09/14/2023 13:14	23-5909		The spill originated from a broken 6  clay pipe joint underground. The sewer traveled down the pipe trench and entered the storm drainpipe through a defected within the storm drain system.  The sewer continued to travel through the storm drainpipe until it reached the outfall at the dry unnamed creek. 	37.9428	-122.54936	Other (specify below)	Storm drain outfall at dry seasonal unnamed water way. 		1285	A portion of the sewer exited the District's sewer main through a broken pipe joint, entered the storm drain system through a broke storm pipe, and exited the storm drain system from storm drain outfall, into a dry unnamed water way. 	Y	12  concrete storm pipe.	10	1275	Spill exited storm drain outfall into unnamed seasonal water way, that was completely dry. 	1285	10	Drainage Conveyance System that discharges to surface water		The spill originated from a broken 6  clay pipe joint underground. The sewer traveled down the pipe trench and entered the storm drainpipe through a defected within the storm drain system.  The sewer continued to travel through the storm drainpipe until it reached the outfall at the dry unnamed storm drain conveyance system. 	Y	37.9428	-122.54936							09/14/2023 12:53	Initial volume estimates were done by eye ball method at the stormdrain outfall. To produce a more accurate estimate, flow rate was established inside the stormdrain Manhole. Using the data collected from the flow rate staff were able to plug numbers into a  formula to calculate the final spill volume. See flow rate calculation attachment.	2 separate eye witnesses confirmed times that flow was present and exiting the storm drain outfall.  	Pipe Structural Problem/Failure - Installation	Broken pipe joint 	Gravity Mainline		Vitrified Clay		70	The spill had no impact whatsoever to the public or the environment.  area was cleaned up and sewer defect corrected 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		The stormwater and sewer spill exited the stormdrain system at an outfall into a dry seasonal stormwater conveyance channel, where it collected, pooled and soaked into the ground. As soon as the spill was confirmed to contain a portion of sewer, staff used a combination truck to  vacuume ALL flow exiting the storm drain outfall. Once the sewer main was repaired, staff flushed the storm drain with potable water and vacuumed up. 	Repaired Facilities or Replaced Defect		Upon discovery of spill, staff CCTV sewer main, identified broken pipe joint allowing the leak. Staff installed a cured in place pipe patch, which sealed the sewer main, not allowing any flow to exit the system. 	District notified of spill- 9/14 11:27AM Staff arrived at spill- 9/14 11:36 Spill end - 9/14 12:53 Spill response complete- 9/14 3:00pm	09/14/2023 03:00	Based on CCTV footage, the spill cause was a broken VCP pipe joint. This was allowing sewer to exit the sewer system and ultimately travel underground and enter the storm drain system. 	N	The pipe defect has been repaired and the investigation has concluded. 		un-named	Other (specify below)	seasonal stormwater conveyance channel 		none. Conveyance channel was dry. 	Other (specify below)	None	NA	0	N	N											The pipe defect has been repaired and the investigation has concluded. 	
5S	5SSO11019	Active	Olivehurst CS	Olivehurst PUD	890403	1.3	Certified	Nicholas Pomeroy	Chief Plant Operator	19-SEP-23	29-SEP-23	29-SEP-23	Category 2 Spill	Maplehurst St & Biglow Dr	09/16/2023 07:19	09/16/2023 06:45	09/16/2023 05:30	09/16/2023 13:22	23-5959		Sanitary Sewer Overflow out of Maplehurst St and Biglow Dr manhole. Sewage made it down the gutter pan and into the storm drain. We then cleaned the street and the gutter pan and then opened up the DI's and cleaned the storm drain. Then we opened the storm drain manholes and cleaned the sewage that had made it in there. We applied a non-toxic, biodegradable enzyme to disinfect and remove odors.	39.06737	-121.55383	Manhole	N/A	N/A	1000	Spill occurred at the manhole located at Maplehurst St and Biglow Dr. The SSO reached a DI after traveling down a gutter pan.	Y	Drainage conveyance system is shown in photographs.	1000	0			1000	Drainage Conveyance System		Sanitary Sewer Overflow out of Maplehurst St and Biglow Dr manhole. Sewage made it down the gutter pan and into the storm drain. We then cleaned the street and the gutter pan and then opened up the DI's and cleaned the storm drain. Then we opened the storm drain manholes and cleaned the sewage that had made it in there. We applied a non-toxic, biodegradable enzyme to disinfect and remove odors.	Y	39.06739	-121.55384							09/16/2023 07:45	Vaccon (amount of liquid recovered) Flow Chart Time from when spill started to when it stopped.	Time from when Call first came in through our call out system, to when operator arrived on site and finally when the spill stopped occurring.	Other (specify below)	Influent Pump Station at the Waste Water Plant failed to communicate with SCADA computer. All influent pumps were off causing the headworks to back store and create the SSO in the field.	Other (specify below)	System did not fail, the influent pumps at the waste water plant were not running.	Other (specify below)	System did not fail, the influent pumps at the waste water plant were not running.	20	The spill was recovered via a Vaccon truck. The area (road, gutter pan, and DI) was pressure washed and an enzyme was applied to disinfect and get rid of any odors. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Once influent pumps at the wastewater facility were back online and running the SSO stopped. A Vaccon truck was used to pressure wash the road, gutter pan and DI and all liquid was recovered using the Vaccon. An enzyme was used to disinfect and remove any odors.	Other (specify below)	See Below	-Plan on adding floats to backup level control of influent wet well at WWTP. -Upgrade the WIN 911 callout system and add the mobile version so every operator can see alarms and what is happening at the plant. -At end of shift every day do a test page to make sure callouts at the plant are working correctly.	Currently working on getting floats installed. Waiting on integrator for updating the WIN 911 callout system we have. Performing a test page daily at waste water plant	09/16/2023 12:30	The cause of spill originated at the Waste Water Treatment Plant. The PLC that runs the influent pumps lost communication with the SCADA computer. The SCADA computer thought the influent pumps were running when in reality all of the influent pumps were off. This caused the headworks at the plant to backup and eventually caused the SSO on Maplehurst and Biglow to occur. 	N												N													
5S	5SSO20015	Active	Olivehurst CS	Olivehurst PUD	890403	1.3	Certified	Nicholas Pomeroy	Chief Plant Operator	19-SEP-23	29-SEP-23	29-SEP-23	Category 2 Spill	Maplehurst St & Biglow Dr	09/16/2023 07:19	09/16/2023 06:45	09/16/2023 05:30	09/16/2023 13:22	23-5959		Sanitary Sewer Overflow out of Maplehurst St and Biglow Dr manhole. Sewage made it down the gutter pan and into the storm drain. We then cleaned the street and the gutter pan and then opened up the DI's and cleaned the storm drain. Then we opened the storm drain manholes and cleaned the sewage that had made it in there. We applied a non-toxic, biodegradable enzyme to disinfect and remove odors.	39.06737	-121.55383	Manhole	N/A	N/A	1000	Spill occurred at the manhole located at Maplehurst St and Biglow Dr. The SSO reached a DI after traveling down a gutter pan.	Y	Drainage conveyance system is shown in photographs.	1000	0			1000	Drainage Conveyance System		Sanitary Sewer Overflow out of Maplehurst St and Biglow Dr manhole. Sewage made it down the gutter pan and into the storm drain. We then cleaned the street and the gutter pan and then opened up the DI's and cleaned the storm drain. Then we opened the storm drain manholes and cleaned the sewage that had made it in there. We applied a non-toxic, biodegradable enzyme to disinfect and remove odors.	Y	39.06739	-121.55384							09/16/2023 07:45	Vaccon (amount of liquid recovered) Flow Chart Time from when spill started to when it stopped.	Time from when Call first came in through our call out system, to when operator arrived on site and finally when the spill stopped occurring.	Other (specify below)	Influent Pump Station at the Waste Water Plant failed to communicate with SCADA computer. All influent pumps were off causing the headworks to back store and create the SSO in the field.	Other (specify below)	System did not fail, the influent pumps at the waste water plant were not running.	Other (specify below)	System did not fail, the influent pumps at the waste water plant were not running.	20	The spill was recovered via a Vaccon truck. The area (road, gutter pan, and DI) was pressure washed and an enzyme was applied to disinfect and get rid of any odors. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Once influent pumps at the wastewater facility were back online and running the SSO stopped. A Vaccon truck was used to pressure wash the road, gutter pan and DI and all liquid was recovered using the Vaccon. An enzyme was used to disinfect and remove any odors.	Other (specify below)	See Below	-Plan on adding floats to backup level control of influent wet well at WWTP. -Upgrade the WIN 911 callout system and add the mobile version so every operator can see alarms and what is happening at the plant. -At end of shift every day do a test page to make sure callouts at the plant are working correctly.	Currently working on getting floats installed. Waiting on integrator for updating the WIN 911 callout system we have. Performing a test page daily at waste water plant	09/16/2023 12:30	The cause of spill originated at the Waste Water Treatment Plant. The PLC that runs the influent pumps lost communication with the SCADA computer. The SCADA computer thought the influent pumps were running when in reality all of the influent pumps were off. This caused the headworks at the plant to backup and eventually caused the SSO on Maplehurst and Biglow to occur. 	N												N													
5S	5SSO11019	Active	Olivehurst CS	Olivehurst PUD	890404	1.1	Certified	Nicholas Pomeroy	Chief Plant Operator		19-SEP-23	19-SEP-23	Monthly Category 3 Spill	Maplehurst Street	09/16/2023 07:19	09/16/2023 06:45	09/16/2023 05:30				Sanitary Sewer seeped out of manhole and made it to the gutter pan and eventually the DI.	39.06737	-121.5586	Manhole			200	Sanitary Sewer seeped out of manhole and made it to the gutter pan and eventually the DI.	Y	Sanitary Sewer came out of manhole, went down gutter pan and reached DI.	200				200	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Sanitary Sewer seeped out of manhole and made it to the gutter pan and eventually the DI.										09/16/2023 07:07	Vaccon Flow Chart Time from when spill started to when it stopped.	Time from when On Call operator was notified to the time the SSO stopped. Used a flow chart from CWEA to estimate flow from manhole.	Other (specify below)	Influent Pumps at wastewater plant not running	Other (specify below)	Waste water plant	Other (specify below)	N/A	20	The impacted area was properly cleaned with a Vaccon and disinfected/odor neutralized with a biodegradable enzyme.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Operator arrived on site of SSO. Called in another operator to bring Vaccon to clean up spill. Also used Enzyme to disinfect and neutralize odors.	Other (specify below)	Setup redundancy at waste water plant to ensure influent pumps are running.	Plan on adding floats to backup level control of influent wet well at WWTP. Upgrade the WIN 911 callout system and add the mobile version so every operator can see alarms and what is happening at the plant. At end of shift every day do a test page to make sure callouts at the plant are working correctly.		09/16/2023 12:30	The cause of spill originated at the Waste Water Treatment Plant. The PLC that runs the influent pumps lost communication with the SCADA computer. The SCADA computer thought the influent pumps were running when in reality all of the influent pumps were off. We are working on adding floats as backups to run the influent pumps if the level gets too high. We are also going to be updating our WIN 911 callout system and adding a mobile version so all operators will be on the same page in terms of what is happening at the plant and what alarms have occurred.		Find root cause of PLC communication loss	01/01/2024 15:30														N/A	Plan on adding floats to backup level control of influent wet well at WWTP. Upgrade the WIN 911 callout system and add the mobile version so every operator can see alarms and what is happening at the plant. 	N/A	N/A	N/A	Upgraded Callout system for WWTP	N/A	N/A	Find root cause of PLC communication loss	
5S	5SSO20015	Active	Olivehurst CS	Olivehurst PUD	890404	1.1	Certified	Nicholas Pomeroy	Chief Plant Operator		19-SEP-23	19-SEP-23	Monthly Category 3 Spill	Maplehurst Street	09/16/2023 07:19	09/16/2023 06:45	09/16/2023 05:30				Sanitary Sewer seeped out of manhole and made it to the gutter pan and eventually the DI.	39.06737	-121.5586	Manhole			200	Sanitary Sewer seeped out of manhole and made it to the gutter pan and eventually the DI.	Y	Sanitary Sewer came out of manhole, went down gutter pan and reached DI.	200				200	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Sanitary Sewer seeped out of manhole and made it to the gutter pan and eventually the DI.										09/16/2023 07:07	Vaccon Flow Chart Time from when spill started to when it stopped.	Time from when On Call operator was notified to the time the SSO stopped. Used a flow chart from CWEA to estimate flow from manhole.	Other (specify below)	Influent Pumps at wastewater plant not running	Other (specify below)	Waste water plant	Other (specify below)	N/A	20	The impacted area was properly cleaned with a Vaccon and disinfected/odor neutralized with a biodegradable enzyme.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Operator arrived on site of SSO. Called in another operator to bring Vaccon to clean up spill. Also used Enzyme to disinfect and neutralize odors.	Other (specify below)	Setup redundancy at waste water plant to ensure influent pumps are running.	Plan on adding floats to backup level control of influent wet well at WWTP. Upgrade the WIN 911 callout system and add the mobile version so every operator can see alarms and what is happening at the plant. At end of shift every day do a test page to make sure callouts at the plant are working correctly.		09/16/2023 12:30	The cause of spill originated at the Waste Water Treatment Plant. The PLC that runs the influent pumps lost communication with the SCADA computer. The SCADA computer thought the influent pumps were running when in reality all of the influent pumps were off. We are working on adding floats as backups to run the influent pumps if the level gets too high. We are also going to be updating our WIN 911 callout system and adding a mobile version so all operators will be on the same page in terms of what is happening at the plant and what alarms have occurred.		Find root cause of PLC communication loss	01/01/2024 15:30														N/A	Plan on adding floats to backup level control of influent wet well at WWTP. Upgrade the WIN 911 callout system and add the mobile version so every operator can see alarms and what is happening at the plant. 	N/A	N/A	N/A	Upgraded Callout system for WWTP	N/A	N/A	Find root cause of PLC communication loss	
2	2SSO10091	Active	American Canyon, Public Works CS	American Canyon City PWD	890407	1.1	Certified	Jay Atkinson	Operations Manager		03-OCT-23	03-OCT-23	Monthly Category 3 Spill	116 Corsicana Way	09/09/2023 19:19	09/09/2023 19:40	09/09/2023 18:45				Single appearance point. Location is manhole in street in front of 116 Corsicana Way, at intersection of Monterey Drive, on our gravity sewer collection system. Photos attached.  	38.17699	-122.26537	Manhole			127	Spill occurred in the middle of the street at the intersection of Corsicana Way and Monterey Drive, in front if 116 Corsicana Way. From a single manhole, the spill reached the gutters on both sides of the street, and traveled to the corner of the next intersection where it ended. Stopping before it reached the nearby storm drain. Maps and photos attached.     	N						127	Street/Curb and Gutter (2 3)		The spill flowed in the Street and to the curb and gutter, down the gutter on both sides of the street on Corsicana Way to the intersection of Corsicana Way and West Carolyn Drive, ending at the corner before the storm drain inlet. Photos attached.	Y	38.1763	-122.26508	38.17671	-122.26536					09/09/2023 21:06	Diurnal flow was estimated. Only 6 connections upstream of the blockage, single family homes, .15 GPM for that time frame of the spill per diurnal flow rate. Estimated it ran for a total 141 minutes from what witness said. 6(connections)x .15(GPM)x 141(minutes)= 127 gallons.	Standby personnel received a call from a resident, Lecil Treat (707)592-8522, reporting a spill. 7:11pm is when he reported the spill. Once the crew was able to clear the blockage and restore flow, they recoded the time at 9:06pm, That was when the spill stopped flowing. We called Lecil Treat back to get an estimated start time, as no other person noticed when the spill started. He said that before 6:45pm he didn't notice anything coming out of the manhole, but between 6:45pm and 7pm is when he noticed the spill. From what Lecil said we determined the spill start time to be 6:45pm. 	Root Intrusion		Gravity Mainline		Vitrified Clay		50	No impact. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	Removed the remainder of the root intrusion with rodding until pipe was perfectly clear.	Upon arrival, the spill was contained in the gutter and was no going in the storm drain. The crew then used the Vactor to clear the blockage in the sewer main by jetting. Blockage was cleared enough to restore flow but not fully cleared. Since flow was restored, complete spill cleanup was performed on the entire area. The following day we inspected the main by CCTV and found a large root intrusion that was still present. We used the Eel(rodding) to clear the entire root ball and cleared the main completely. We then inspected by CCTV again to confirm the main was clear and in good condition. We also called back the original reporting resident to determine spill start time.  	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Used Eel to remove remaining root intrusion that jetting couldn't.  	We inspected the main by CCTV and discovered a large root intrusion which was the cause of the spill. We removed all roots with the Eel(rodding) and verified the main was fully cleared and in good condition. This spill uncovered a previously unknown root problem in this area. Regular inspections by CCTV will now be performed, as well as a regular root control schedule for this area to eliminated any potential for future spills. This location will also be added to our weekly hot spot check list. 		09/11/2023 16:30	Once we cleared the blockage, restored flow and cleaned up the spill, we inspected the sewer main by CCTV and found a large root intrusion. Once the root intrusion was cleared it was then inspected after root removal. Root intrusion was determined to be the cause of the spill. Verified by CCTV inspections.  		There is no ongoing investigation. The cause of the spill was determined to be roots and the issue was resolved.	09/11/2023 16:30														There was no illicit discharge. 	Frequent CCTV inspections will now be performed on a regular scheduled basis, as well as a regular root control schedule for this area to eliminated any potential for future spills. This location will also be added to our weekly hot spot check list. Regular maintenance cleaning will be performed more often based on the findings from the scheduled inspections.	This area will be added to the weekly hot spot checklist and checked weekly. CCTV inspections will be performed in this area on a regular basis. Mechanical root control methods (Eel) will be utilized based on the findings from the regular inspections. 	There is currently no planned rehabilitation or replacement for this area. No CIPs for this street as of yet.	Asset has been inspected by CCTV. The cause of the blockage (roots) has been removed and verified by CCTV. Asset does not need repairing or replacing at this time.	No CIPs for this area currently.	Weekly inspections of this area will be performed as part of our weekly hot spot checklist. Quarterly CCTV inspections will be performed on this area from the date of the spill. Root removal will be performed based on the inspection findings, up to quarterly or unless there is an issue during the weekly inspections.	No modifications to spill response activities necessary. All spill response activities were performed as detailed in this report and no addition modifications recommended.  	There is no ongoing investigation. The cause of the spill was determined to be roots and the issue was resolved.	
4	4SSO11365	Active	Unincorporated County Area CSMD South/County Sanitation District CS	Los Angeles Cnty DPW	890408	1.1	Certified	Robert Swartz	Sr. CE		12-OCT-23	12-OCT-23	Monthly Category 3 Spill	1534 - 5918 South La Cienega Boulevard, Los Angeles - Unincorporated County Area	09/08/2023 22:55	09/09/2023 00:10	09/08/2023 19:00				CSMD Map Sheet No. 1534 MMS No. 8423865 Sewage came out of the bathtub and toilet.	33.98503	-118.37022	Inside Building or Structure; Lateral Clean Out (Private)			800	Spill discharge from toilet and bathtub onto the floor.	N						100	Building or Structure		Spill discharge from toilet and bathtub onto the floor.	Y	33.98507	-118.37014							09/09/2023 00:35	CWEA SSCSC Manhole Gauge, visual	Constituent interview	Debris-General; Root Intrusion		Gravity Mainline		Vitrified Clay		73	Personal property damage	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Hydro jet equipment was used to clear the mainline blockage. Contained portion of the spill and returned to the sewer system. Notified relevant agencies. Provided the constituent with an authorization form for Rapid Response Service Program for further cleaning.	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below)	Will inspect sewer using CCTV.	90-day hydro root saw periodic.		09/09/2023 02:24	Mainline will be televised to determine if further actions are needed. 		Mainline will be televised to determine if further actions are needed. 	11/09/2023 12:00														N/A	N/A	90-day hydro root saw periodic.	N/A	N/A	N/A	N/A	N/A	Mainline will be televised to determine if further actions are needed. 	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District	890409	1.2	Certified	John J. Hough	San Dist. Superintendent	19-SEP-23	28-SEP-23	28-SEP-23	Category 1 Spill	332749	09/14/2023 12:15	09/14/2023 12:50	09/13/2023 07:00	09/14/2023 18:04	23-5918		See Attached Spill Map.	38.4691	-121.42117	Lateral Clean Out (Public)			2723	See Attached Spill Map.	Y	See Attached Spill Map.	1326	0	See Attached Spill Map.	1373	1344	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See Attached Spill Map.	Y	38.46904	-121.42124	38.459	-121.42904	38.45933	-121.43155			09/14/2023 13:15	See attached Volume Estimation.	See attached Volume Estimation.	Debris-wipes/Non-disposables		Lower Lateral		Vitrified Clay		56	No observed impacts of the spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified Sacramento County Environmental Management Department and City of Sacramento Department of Utilities O&M Division.	See attached Description of Event.	Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected the lower lateral with CCTV on September 14, 2023. Based on the findings, SacSewer will inspect the lower lateral with CCTV in 12 months to determine an appropriate preventative maintenance cleaning frequency.	CCTV Inspection in 1 year	09/15/2023 03:30	See attached Description of Event.	N			Strawberry Creek (Beacon Creek)	Stream/Creek			No observed impacts to aquatic life.	Other (specify below)	The impacted surface water is fenced and not accessible to the public.	N/A	0	N	N												
5F	5SSO11311	Active	MD-22A Oakhurst CS	Madera County Public Works Department - Special Districts	890413	1.3	Certified	Chad Brown	Utility Manager		19-SEP-23	19-SEP-23	Monthly Category 3 Spill	Victoria Lane -2 Lift station #7/ Black Oak River Road MH	09/18/2023 06:30	09/18/2023 06:30	09/18/2023 02:00				Sewer spilled in two locations due to Victoria Lane #7-1 Lift Station breakers tripped on both pumps causing a gravity line to overflow out of a man hole approximately 300 gallons and overflowing Victoria Lane #7-2 Lift Station approximately 200 gallons. Victoria Lane#7-2 spilled due to being inhibited by Victoria Lane #7--1 Lift Station. Both spills stayed within close proximity of each site. The Man hole spilled in dirt and adjacent roadway asphalt. Lift Station spilled in dirt.	37.32951	-119.66332	Pump Station		Second spill location was a private man hole of the edge of black oak river road.	500	Spill was at two different locations, spill was less then 500 gallons between both location mostly water. Spill at the lift station was approximately 2' wide by 20' long. The spill at the manhole was approximately 3' wide by 15' long.	N		0				0	Paved Surface; Unpaved Surface		 Lift station #7-2  spilled a 2' wide by 20' long area and the private man hole spilled a 3' wide by 15' long area. 		37.3295	-119.66333	37.32924	-119.66482					09/18/2023 06:59	Previous spill estimations	Estimation from past experience. 	Pump Station Failure - Controls		Pump Station - Controls		Polyvinyl Chloride (PVC)		199	Wet dirt/ Asphalt no solid material	N	Contained All or Portion of Spill; Restored Flow		came across the spill on my way into work. Restored flow.	Repaired Facilities or Replaced Defect		Follow scheduled power outage and restoring.		09/18/2023 07:00	Power outage tripping both breakers to both lift station controls		N/A	09/18/2023 07:00														N/A	SCADA system routine maintenance	Weekly Lift Station checks	N/A	N/A	N/A	N/A	N/A	N/A	
5S	5SSO10941	Active	El Dorado Hills CS	El Dorado Irrigation District	890423	1.1	Certified	John Chavers	Collection System Supervisor		20-SEP-23	20-SEP-23	Monthly Category 3 Spill	EDH-2023-08-05	08/13/2023 14:12	08/13/2023 15:10	07/30/2023 16:45				Force main damaged by rototiller seeping wastewater into lawn area. See attachments.	38.72914	-121.08228	Force Main			224	Small portion of landscaped area and lawn. See Attachment	N						74	Unpaved Surface		Small portion of landscaped area and lawn. See attachment.	Y	38.72914	-121.08228							08/13/2023 17:05	Estimated flow rate multiplied by time since homeowner noticed moisture in the area.	See attachment	Damage by Others Not Related to Collection System Construction/Maintenance		Force Main		Polyvinyl Chloride (PVC)		50	See attachment	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		See attachments	Repaired Facilities or Replaced Defect		Replaced section		08/13/2023 19:00	See attachment		NA	08/13/2023 19:00														NA	NA	NA	Replaced	Repalced	NA	See attachment	NA	NA	
5S	5SSO10923	Active	Deer Creek CS	El Dorado Irrigation District	890428	1.1	Certified	John Chavers	Collection System Supervisor		20-SEP-23	20-SEP-23	Monthly Category 3 Spill	DC-2023-08-12	08/06/2023 10:13	08/13/2023 10:58	08/04/2023 14:30				See attachments	38.662	-120.985	Lateral Clean Out (Public)			374	See Attachments	Y	See attachments	374				374	Drainage Conveyance System		See attachments	Y	38.662	-120.986							08/06/2023 11:06	See attachments	See attachments	Root Intrusion		Gravity Mainline; Lower Lateral		Concrete; Polyvinyl Chloride (PVC)		60	See attachments	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		See attachments	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		See attachment		08/06/2023 14:10	See attachment		NA	08/06/2023 14:10														NA	See attachment	See attachment	See attachment	See attachment	NA	See attachment	See attachment	NA	
5S	5SSO11001	Active	Modesto CS	Modesto City	890439	1.1	Certified	Robert Englent	Wastewater Collection System Superintendent		27-SEP-23	27-SEP-23	Monthly Category 3 Spill	3101 Elgin Way, Modesto, CA 95355, USA	08/24/2023 18:34	08/24/2023 18:53	08/24/2023 18:34				The spill originated from sewer manhole SS008637 in the middle of Elgin Way. 	37.68288	-120.97342	Manhole			344	The spill affected 169.8 ft. of curb and gutter from 3101 Elgin Way to the catch basin in front of 3109 Elgin Way.	Y	Catch basin SD005831 and rock well SD018045.	13				258	Drainage Conveyance System; Groundwater Infiltration Basin or Facility; Paved Surface; Street/Curb and Gutter (2 3)		Manhole SS008637 next to 3101 Elgin Way North 169.8 ft. to storm catch basin SD005831.	Y	37.68326	-120.9732							08/24/2023 20:00	Pick hole flow estimation. See Spill Calculation attachment	The original reporting party said that he called immediately when he first noticed the overflow. The spill stopped when the Vac-Con broke the stoppage at 20:00 hrs. 	Other (specify below)	 Plumber incorrectly installed a lateral liner at 1445 Coffee Villa Dr.	Gravity Mainline		Vitrified Clay		50	See Illicit Discharge attachment	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Deployed sandbags to contain spill. Called in Vac-Con crew and ECS. Jose and Izzy broke stoppage at 8:00pm at 193 ft. from downstream manhole 008723. After clearing stoppage, crew cleaned 169.8 ft. of gutter pan, around spill point, catch basin, rock well, cored the rock well and flushed with over 500 gallons of water while vacuuming. Crew ran line segment to clear any remaining issues. after trying to run line, we couldn't break through. we popped open cleanout at 1445 Coffee Villa Dr. and noticed new liner in lateral. We tried to get as far as we could with the camera but noticed the liner was in the main causing the stoppage. A milling nozzle was used to remove the hardened liner from the main line.	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		See SSS Review Form attachment 		08/25/2023 14:00	Crew ran line segment to clear any remaining issues. after trying to run line, we couldn't break through. we popped open cleanout at 1445 Coffee Villa Dr. and noticed new liner in lateral. We tried to get as far as we could with the camera but noticed the liner was in the main causing the stoppage. A milling nozzle was used to remove the hardened liner from the main line.		N/A	08/25/2023 14:00														We will seek cost recovery from Roto Rooter for incorrectly installing a lateral liner that caused the SSS.	N/A	No adjustments needed.	N/A	CCTV inspected line segment after liner was removed with a milling nozzle.	N/A	N/A	N/A	N/A	
5S	5SSO10941	Active	El Dorado Hills CS	El Dorado Irrigation District	890443	1.4	Certified	John Chavers	Collection System Supervisor	20-SEP-23	27-SEP-23	27-SEP-23	Category 1 Spill	EDH-2023-09-07	09/17/2023 20:46	09/17/2023 20:46	09/17/2023 17:30	09/17/2023 22:46	23-5978	27-SEP-23	See Attachment	38.70923	-121.08784	Force Main	See attachment	See attachment	16324	See Attachment	Y	See attachment	16324	0	See Attachment	5280	16324	Surface Water	See attachment	See attachment	Y	38.70923	-121.08784							09/18/2023 01:30	See attachment	See attachment	Pipe Structural Problem/Failure - Installation		Force Main		Polyvinyl Chloride (PVC)		24	See attachment	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		See attachment	Repaired Facilities or Replaced Defect		See attachment	See attachment	09/18/2023 16:12	See attachment	N			Unnamed creek	Stream/Creek			See attachment	Restricted Public Access		EID staff	9	N	Y	See attachment	See attachment										
2	2SSO10104	Active	Ccsf - San Francisco Airport CS	CCSF - San Francisco Airport	890445	1.1	Certified	Jennifer Acton	Director of Maintenance		28-SEP-23	28-SEP-23	Monthly Category 3 Spill	Gate G3 Pedestrian Breezeway	08/11/2023 08:10	08/11/2023 08:40	08/11/2023 08:05				Spill appeared from two sanitary sewer lateral clean outs located within the pedestrian breezeway, near aircraft Gate 3 and tenant breakroom.  Photos uploaded.	37.6175	-122.39094	Lateral Clean Out (Public); Other (specify below)	Overflow appeared from two lateral clean outs (Public) adjacent to each other.	Two lateral clean outs in close proximity to each other	316	Spill impacted the paved surface within the pedestrian breezeway and extended approximately 140 linear feet.  Photos uploaded.	Y	Spill reached two storm drain catch basin at downgradient locations.  Storm drains lead to pump stations that can be isolated and/or diverted to treatment plant for processing.	56				316	Other (specify below); Paved Surface	Paved surface and storm drain catch basins	Spill overflowed from clean out onto the paved surface, forming a large ponded area downgradient.  Pond grew larger, then traveled over the high point in the breezeway and towards a storm drain catch basin in the opposite downgradient direction. Spill overflowed 2nd clean out onto the paved surface and impacted a second storm drain catch basin.	Y	37.61758	-122.39111	37.61743	-122.39076					08/11/2023 08:50	Impacted paved surface area:  Estimated volume calculated using Area/Volume method using field measurements collected by responding Spill Team member on scene.   Impacted conveyance system:  Estimated volume calculated by Spill Team member on scene using volume, flow rate and time information collected in the field and visual/eyeball estimation.	Spill incident times provided by responding Airport personnel or estimated using information provided by responding Airport personnel. 	Debris-General; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Ductile Iron		26	Spill impacted paved surface and two storm drain catch basins.  Paved surface was scrubbed clean and storm drain catch basins were flushed.  All wastewater was capture and returned to the sanitary system for processing.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Airport Spill Team, Plumbers and Duty Mgr responded.  Spill team applied absorbent material to contain and prevent additional sewage from entering storm drain catch basins.  Airport Plumbers used drain snake to clear blockage, used camera to investigate condition of pipe, and used hydrojetter to scour the pipe line and remove FOG built up inside the drain line.  Flow was returned to the drain line.  Scrubbing contractor cleaned the impacted paved surface.  Airport Plumbers flushed the affected storm drain catch basins with potable water and captured the wastewater at the downstream manhole.  All wastewater was returned to the sanitary system for processing.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Performed FOG inspection of upstream food service establishments	Monthly preventative maintenance, hydrojetting, scheduled with Airport Plumbing department.		08/14/2023 15:30	Investigation by Airport Plumbers using sewer camera and plumbing tools determined that FOG build up had restricted flow of the gravity sewer line.  This, in addition to travelers flushing non-dispersible wipes and general sanitary sewer debris, caused the drain line to become blocked and subsequent sewer overflow. 		NA	08/11/2023 15:30														NA	NA	NA	NA	NA	NA	NA	NA	NA	
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	890448	1.1	Certified	Daniel Whitlock	Manager		21-SEP-23	21-SEP-23	Monthly Category 3 Spill	93 San Pablo 	08/23/2023 11:50	08/23/2023 12:45	08/23/2023 08:00				Spill appearance point was the lateral clean out (Asset L-166465) in front of 93 San Pablo ave . 6  VCP main sewer ( Asset # P-123838) runs along the sidewalk at this location . The 6  main sewer was blocked with roots causing the spill to occur. 	37.73905	-122.46234	Lateral Clean Out (Private)			945	The spill exited the private lateral clean (L-166465)   out and flowed intermittently down the sidewalk and into the street , ultimately ending up in the combined storm drain in front of 11 San Pablo ( asset # N-43873) 	N						945	Paved Surface; Unpaved Surface		Spill ultimately ended up in combined catch basin in front of # 11 San Pablo ( asset # N-43873) 	Y	37.73905	-122.46234	37.73951	-122.46208	37.73983	-122.46151	37.74008	-122.46101	08/23/2023 15:00	Witness account ( says its been on and off since this morning @ 8 am )  as well as Operator on site estimating the flow to be from 1-3 GPM Intermittently.  8:00 am start - 3:00 pm stop = 420 Mins total duration .Higher estimate is it ran @ 3 GPM for 3/4 of the time ( 315 Mins total @ max flow )   315 Mins x 3 GPM = 945 gallons  	Witness statement of noticing it begin to overflow in driveway as well as water pooling in garage from 93 San Pablo water use began approx. 8:00 am . Spill end time was witnessed by the operators on the combination truck relieving the line of root intrusion @ 3:00 pm    Resident was hosing down the walkway / sidewalk before we got to the location so we needed to use duration and flow rate to estimate the total volume. 	Root Intrusion		Gravity Mainline		Vitrified Clay		109	Spill ran down the sidewalk and into the street ultimately ending back in the system via a combined catch basin in front of 11 San Pablo ave .  	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Once onsite we barricaded off the location so the public would not walk through the immediate Spill zone .  Once Main sewer was relieved the clean up began in front of 93 San Pablo and the street was washed down with United 282 disinfectant all the way to the combined catch basin down the street . The catch basin was also cleaned out with the combo truck and all water and solids were returned to the system . 	Other (specify below)	Follow up CCTV work order created. 	Once CCTV inspection is complete the line may need repair or replacement scheduled. 		08/23/2023 16:15	Still awaiting CCTV results but our initial cleaning with the combo truck identified root mass in Line approx. 61' from Downstream manhole ( likely in front 75 San Pablo )   		Yes awaiting CCTV results .	10/06/2023 08:15														NA	NA	Pending	Awaiting CCTV 	Awaiting CCTV 	NA 	NA	Barricaded off location , Removed all solids from the location , Used United Brand 282 Disinfectant on Sidewalk and all areas of the spill travel and end point . Washed down area to combined catch basin and used combination truck to clean out catch basin in front of 11 San Pablo ave .  	Yes awaiting CCTV results .	
3	3SSO10272	Active	Greenfield, City Of CS	Greenfield City	890475	1.1	Certified	Jamie Tugel	Public Works Director		21-SEP-23	21-SEP-23	Category 2 Spill	647 Vazquez Ave	09/20/2023 13:05	09/20/2023 13:05	09/20/2023 11:20	09/20/2023 13:50	23-6045		Tyler lift station stopped running (1 pump is functional, awaiting parts) and alerted staff to a high wet well level.  The flow was very volumous at the time  and quickly reached the maximum level of the wet well and began to overflow at the lowest collection system manhole that feeds the lift station.    Staff entered the dry well and pulled the pump to discover a large piece of a pvc cap had blocked the impeller.	36.31626	-121.2353	Manhole		Spill appeared at a 2nd Manhole location as well.	3750	Both MH overflow locations appeared around the exterior circumference of the manhole lids, traversing the street and into the gutter.  The gutter flows to a storm drain inlet, which conveys, via pipe, the water to a stormwater percolation pond, which is where it terminates and the water percolates into the ground.  The outflow pipe at the perc pond distributes the water to the pond floor.  From visual observation, the pond floor, which is overgrown with vegetation, was not largely impacted.  The water likely percolated almost as fast as it entered into the pond.	Y	MH overflow entered the street, then the gutter, then to a drain inlet.  THis drain inlets conveys, via pipe, to a storm water percolation pond.	0	3750			0	Other (specify below)	Strom drain percolation pond	Tyler lift station stopped running (1 pump is functional, awaiting parts) and alerted staff to a high wet well level.  The flow was very volumous at the time  and quickly reached the maximum level of the wet well and began to overflow at the lowest collection system manhole that feeds the lift station.    Staff entered the dry well and pulled the pump to discover a large piece of a pvc cap had blocked the impeller.	Y	36.3166	-121.23548	36.31758	-121.23573					09/20/2023 13:50	Utilized SCADA data and known wet well maximum height to determine the start and stop times of the spill.   From photos, used the duration/flow rate comparison method to calculate the volume of the spill	Utilized SCADA data and known wet well maximum height to determine the start and stop times of the spill.   From photos, used the duration/flow rate comparison method to calculate the volume of the spill	Debris-General	Portion of a pvc pipe cap was lodged in the lift station pump impeller	Manhole; Pump Station - Mechanical	the lift station pump was blocked and had to be cleared out by staff	Polyvinyl Chloride (PVC)		25	the spill impacted the street, gutter, storm drain inlet/conveyance pipe, and the percolation pond.  There were no evacuations of danger to the public. 	N	Mitigated Effects of Spill (specify below)	disinfected the street, gutter, storm drain, and perc pond with liquid chlorine, then washed down with a large amount of water from a fire hydrant	Initial response was for staff to dislodge the pvc pipe cap and get the lift station functioning.  The CIty does not have a vactor truck at this time.	Other (specify below)	include more outreach in the FOG program that expands to it0mes other than FOG	include more outreach in the FOG program that expands to it0mes other than FOG	As soon as the City's FOG program is authorized by the waterboard	09/20/2023 13:50	The lift station pump stopped working due to a lodged piece of pvc pipe being disposed of in the collections system and then blocking the impeller, causing the sewage to collect and spill at the lowest point in the collection system for this lift station	N												N													
9	9SSO10680	Active	Padre Dam CS	Padre Dam Municipal Water District	890477	1.6	Certified	Paul Clarke	Director of Operations	22-SEP-23	05-OCT-23	05-OCT-23	Category 1 Spill	Greenfield Dr SSO (204)	09/20/2023 19:30	09/20/2023 20:11	09/20/2023 16:45	09/20/2023 23:11	23-6057		Initial spill appearance point was inside Suite A and Suite G of 204 Greenfield Dr.  Customer then went outside and noticed additional spill point of Padre Dam MH 2385 located inside the industrial parking lot.	32.81415	-116.96399	Inside Building or Structure; Manhole		Customer walked outside of building and noticed that a MH was also spilling and removed lid to relieve the spill from the buildings.  This was Padre Dam's MH 2385.	12900	Upon arrival onsite, Daniel Lockart estimated the spill to be flowing at approximately 60 gpm.  Daniel took a cell phone video to back up this estimate.	Y	Spill originally flowed into dual storm channel inlets in the industrial area.  Sandbags were placed to protect the two initial inlets and then placed around a third to prevent spill from continuing to flow into the drainage channel.	0	12636	Spill discharged into Broadway Channel.	12636	264	Building or Structure; Drainage Conveyance System; Paved Surface		Spill occurred at 204 Greenfield Drive in an industrial complex.  Spill made its way to two storm drain inlets that discharge into Broadway Channel. 	Y	32.81415	-116.96399							09/20/2023 20:20	Spill volume was visually estimated using the SSCSC Manhole Overflow Gauge.	Spill start time estimated when tenant in one of the units first observed the spill.  Spill end time estimated when blockage was partially cleared and spill stopped.	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG); Other (specify below)	Corroded manhole rung wedged inside sewer main.	Gravity Mainline		Vitrified Clay		60	Spill found its way into nearby drainage channel.  Units A and G were temporarily without sewer service but were restored when blockage was cleared.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Sandbags were placed around multiple storm drain inlets to prevent the spill from continuing to get into the storm drain.  Vactor used to recover standing wastewater still on the property.	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Removed corroded manhole rung from sewer main at blockage point.  	Communication department to send out reminders of the importance of keeping wipes and FOG out of the Sanitary Sewer System.  SmartCover monitoring device to be installed in nearby, upstream manhole from spill location.  Maintenance staff to document manhole rung condition and provide to supervisor to plan for removal of rungs that are deteriorating.	Communication mailers are to be mailed out in November 2023. SmartCover device to be installed by December 2023. (4-6 week lead time) Maintenance staff will immediately begin documenting manhole rung condition for possible removal on paper flushing sheets.  New manhole rung condition dropdown will be added to the GIS flushing app that is already in development.	09/21/2023 15:28	When blockage was cleared a large accumulation of grease and wipes was found in the sewer system.  CCTV inspection also discovered corroded manhole rung wedged inside of pipe at blockage point.	N			Broadway Channel to Forrester Creek	Other (specify below)	Drainage Channel		No impacts observed.	Other (specify below)	Broadway Channel and Forrester Creek are both fenced off from the public.	San Diego County DEH	0	N	N	N/A	N/A										
2	2SSO10104	Active	Ccsf - San Francisco Airport CS	CCSF - San Francisco Airport	890482	1.1	Certified	Jennifer Acton	Director of Maintenance		28-SEP-23	28-SEP-23	Monthly Category 3 Spill	Gate F11 SSO	08/30/2023 17:47	08/30/2023 17:54	08/30/2023 17:40				Spill appeared from side by side sewer manholes located in the vehicle service road adjacent to Gate F11	37.62055	-122.38734	Manhole		Two sanitary sewer manholes side by side	62	Sewage appeared from two sewer manholes and flowed onto the paved surface, traveling west and northwest, then stopped within Gate F11 aircraft envelope.    No storm drain affected. See photos.	N						62	Paved Surface		Sewage appeared from two manholes and flowed onto the paved surface, traveling west and northwest, then stopped at the adjacent aircraft envelope at Gate F11. See photos.	Y	37.62055	-122.38734	37.62046	-122.3876	37.62097	-122.38778	37.62055	-122.38734	08/30/2023 18:15	Spill volume estimated using area/volume calculation and information provided by responding airport personnel and photos.  	Spill times estimated using information provided by Airport personnel (Airfield Operations, Airport Duty Mgr, and Spill Team) responding to incident.	Debris-wipes/Non-disposables		Lower Lateral		Ductile Iron		22	Spill impacted the paved ground surface of the vehicle service road and aircraft gate.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Airport Safety Operations, Fire Department, Plumbers, and Spill Team responded. Airport Duty Manager worked with Custodial group to close restrooms and stop flow. Airport Fire Department applied absorbent to contain spill from migrating further into the aircraft envelope. Absorbent waste was removed and disposed. Paved surface was cleaned by scrubbing contractor. 	Other (specify below)	Location is currently on a monthly Preventative Maintenance schedule for Airport Plumbers to inspect manholes and perform hydrojetting if needed.	Location is currently on a monthly Preventative Maintenance schedule for Airport Plumbers inspect manholes and perform hydrojetting if needed.		08/30/2023 20:15	From investigation and the process to restore flow, Plumbers determined that the blockage in the gravity sewer line was from non-dispersible wipes and paper towels resulting in the sewer backup and overflow.		NA	08/30/2023 20:08														NA	NA	NA	NA	NA	NA	NA	NA	NA	
2	2SSO10216	Active	West County WW District CS	West County Wastewater District	890483	1.2	Certified	Gordon Times	Collection System Operations Department Manager	22-SEP-23	28-SEP-23	28-SEP-23	Category 1 Spill	26 Park Lane, El Sobrante	09/19/2023 22:55	09/19/2023 23:45	09/19/2023 22:00	09/20/2023 01:52	23-6025		The spill escaped a manhole in front of 26 Park Ln. and entered a nearby storm drain (See Attached).	37.98266	-122.30849	Gravity Mainline			560	The spill escaped a manhole in front of 26 Park Ln. and entered a nearby storm drain (See Attached).	Y	The storm drain was approximately 20 ft. from the appearance point MH (See MH Location exhibit attached).	0	560	NA	0	0	Drainage Conveyance System that discharges to surface water		The spill escaped a manhole in front of 26 Park Ln. and entered a nearby storm drain (See Attached).	Y	37.98264	-122.30832	37.98262	-122.30852					09/20/2023 00:55	The spill was calculated using the Upstream Lateral Method (See Attached).	See above.	Root Intrusion		Gravity Mainline		Vitrified Clay		55	The spill entered the nearby storm drain and had no impact to the environment.	N	Cleaned Up (specify below); Restored Flow		The area around the spill was washed down and disinfected.	Adjusted Schedule/Method of Preventive Maintenance		The line was CCTV and no structural issues were found. Schedule maintenance Frequency has been increased.	September 21, 2023--Increased Scheduled Maintenance	09/20/2023 01:45	The team removed roots from the line when clearing the stoppage. The line was CCTV and no structural issues were found. 	N			Unknown	Stream/Creek			None	Other (specify below)	NA	NA	0	N	N												
3	3SSO10334	Active	Seaside Co Sd CS	Seaside CSD	890485	1.2	Certified	Nisha Patel	District Engineer		22-SEP-23	22-SEP-23	Monthly Category 3 Spill	956 Wanda Ave	08/24/2023 08:45	08/24/2023 08:55	08/24/2023 08:30				Roots and FOG deposition in the main line caused a blockage, resulting in the spill from the man hole lid. The appearance location is the parking lot closest to 956 Wanda Avenue.	36.604344	-121.845953	Gravity Mainline; Manhole			100	The spill originated from the manhole in the parking lot, and spread approximately 13 feet to the nearest storm drain inlet.	Y	The storm drain system at this location is comprised of concrete drain inlets and 6  VCP pipe.	100				100	Drainage Conveyance System that discharges to surface water; Paved Surface		The spill originated from a man hole in a paved parking lot, travelled 13 feet over the paved surface, and entered a storm drain inlet. 	Y	36.604331	-121.845953							08/24/2023 09:05	Eyeball estimate of the volume recovered from the storm drain	Estimated the volume of liquid in the storm drain.	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		70	None. Sanitized paved area and storm drain inlet and conveyance	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Arrive onsite, Block storm drain down stream of spill, restore flow to sewer system, pump/vacuum out all liquid from the storm drain system, sanitize the paved area, sanitize the drain inlet, sanitize the storm drain conveyance. Remove the storm drain blockage. Dispose of sewage in sewer system.	Other (specify below)	Blockage removed as part of response.	None required. 		08/24/2023 09:14	Root ball was removed as part of the immediate response to the blockage. This restored flow to the system. 		None	08/24/2023 09:14														Not applicable	Periodic video of system to check for new root intrusion	None	None	None	None	photo of removed root ball	none	None	
2	2SSO10113	Active	Pittsburg City CS	Pittsburg City	890486	1.1	Certified	Jorge Esparza	Public Works Superintendent 		12-OCT-23	12-OCT-23	Monthly Category 3 Spill	1617 Kingsly Dr	09/21/2023 10:00	09/21/2023 10:12	09/21/2023 09:50				The spill was flowing out the manhole in front of 1617 Kingsly Dr.  	37.99116	-121.8751	Manhole			190	The spill was flowing out the manhole in front of 1617 Kingsly Dr.  and enter into a storm drain catch basin.	Y	 There was a storm drain catch basin in front of 1617 Kingsly Dr where the spill enter. We set up a vacuum tube to contain the spill and cleaned the storm drain.  	190				190	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		The spill was flowing out the manhole in front of 1617 Kingsly Dr. and enter the storm drain catch basin located in front of 1617 Kingsly Dr.										09/21/2023 10:28	Duration and flow rate method.	Duration and flow rate method.	Fats, Oil and Grease (FOG)		Manhole		Concrete; Other (specify below)	ACP	49	Contact pave surface. Enter into storm drain catch basin. The spill was contained within 10 feet by 15 feet area near the manhole.   	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		We arrived at the location and noticed spill coming out of manhole into storm drain. Call supervisor for assistant with a second truck. We rodded the main line and clear the blockage. The second truck use vacuum tube to contain the spill. They vacuum the storm drain and clean the curb & gutter.   	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Adjust the schedule for cleaning on the chronic list to every three months.		09/21/2023 11:10	Crew CCTV'd the sewer line and found heavy grease in the line. The cleaning schedule will get modify the sewer will get clean every three months.		Crew CCTV'd the sewer line to find the spill cause and found a couple of sags in the pipe and heavy grease.	09/25/2023 15:30														N/A	Adjust the schedule for cleaning on the chronic list to every three months.	Adjust the schedule for cleaning on the chronic list to every three months.	Not at this time.	CCTV inspection to find out the problem.	N/A	We will upload our chronic list showing the affected line. New preventive schedule and send out FOG door tag flyers.	We will upload our chronic list showing the affected line. New preventive schedule and send out FOG door tag flyers.	Crew CCTV'd the sewer line to find the spill cause and found a couple of sags in the pipe and heavy grease.	
5S	5SSO10938	Active	Easterly CS	Vacaville City DPW	890487	1.3	Certified	Justen Cole	Director Of Utilities	24-SEP-23	13-OCT-23	13-OCT-23	Category 1 Spill	6506 Gibson Canyon Road	09/02/2023 16:24	09/02/2023 17:05	09/02/2023 11:40	09/02/2023 21:40	23-5650		Please refer to attached Illicit Discharge Complaint report #CEWW23-0007.	38.37229	-121.99417	Lateral Clean Out (Public)			3467	Please refer to attached Illicit Discharge Complaint report #CEWW23-0007.	Y	Please refer to attached Illicit Discharge Complaint report #CEWW23-0007. Staff prevented the spill of an additional 1,500 gallons by using a vactor while making the repair for the damages caused by PG&E.	0	0	Please refer to attached Illicit Discharge Complaint report #CEWW23-0007.	0	0	Drainage Conveyance System; Paved Surface; Unpaved Surface	Due to the length of the conveyance system, the sewage spill did not reach surface water. 	Please refer to attached Illicit Discharge Complaint report #CEWW23- 0007.	Y	38.37232	-121.99414	38.37235	-121.99421	36.77826	-119.41793			09/02/2023 17:15	Area & Volume method of dimensions taken in the field. Plan to use secondary method based on EDUs as a check and confirmation method. Used EDU volume estimation which equaled 1,668.5 gallons, but more weight is given to the revised area & volume as measurements were taken  soon after the spill.	Area/Volume calculations using GPS data to measure distances and more accurate measurements of varying depths of high-water marks observed in the field.	Damage by Others Not Related to Collection System Construction/Maintenance	Third party (PG&E) damaged the 8-inch main sewer line while installing electrical conduits. Because of this, staff did not report within the required time.	Gravity Mainline		Vitrified Clay		31	Spill overflowed to storm drain ditch which leads to a dry tributary to Ulatis Creeks. Spill did not reach surface water at Ulatis Creek.	N	Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow	Contacted California Dept. of Fish and Wildlife (CDFW). CDFW has provided the spill mitigation requirements before the season rains which would wash the sewer spill remnants.	After staff was able to inspect upstream and downstream sewer manholes, staff was called out with equipment to begin making repairs to eth damaged sewer pipe as described ib the Illicit Discharge Complaint attached.	Repaired Facilities or Replaced Defect		Per the Illicit Discharge Complaint form, PG&E was directed to: NOT proceed with directional boring work on the remaining sections of PG&E Phasing 1.2 until the following is done: -PG&E to provide a potholing plan to the City for review. -Potholing shall be done at every crossing; Parallel lines shall be potholed every 50 feet. -Potholing and positive identification of City Utilities shall be completed prior to proceeding with boring.  If potholing is not uncovering the utilities, PG&E shall contact the City for assistance in finding the lines. -PG&E can contact Jeremy Cox of the City�s Utilities Department at 707-317-0856 for assistance in locating the City�s utilities.  Include me (Andrew Shuck) in all correspondence.  No changes to the understandings above shall be made in the field.  Any changes to the above understandings shall be made only through the City�s permit representative (Andrew Shuck). 	Refer to the Revised Illicit Discharge Complain form which has been uploaded.	10/05/2023 14:23	Refer to the Revised Illicit Discharge Complain form which has been uploaded.	Y	 On Thu 9/21/2023 12:46 PM Miguel Medina sent an email to Walter Mobley regarding this spill caused by PG&E. On Fri 9/22/2023 9:15 AM, Walter responded that the City should have reported the sewer spill as required by the revised WDR. On 9/24/2023 between 11am and 1pm, Miguel Medina attempted to enter all the required data required, including the illicit discharge complaint report. The CIWQS systems failed to record all the data and the report upload.  Additional attempts were made to upload the report which was successful on 9/25/2023. City is preparing to mitigate the effects of the spill as required by CDFW ahead of any impactful rain event. City plans to provide final documentation after spill mitigation work is completed. 	11/15/2023 12:00	Ulatis Creek	Other (specify below)	Drainage conveyance system to is tributary to Ulatis Creek.		Did not reach surface waters.	Other (specify below)	Not accessible to public in addition to extensive poison ivy and poison oak detected. 	City of Vacaville	0	N	Y	Samples were not held or preserved for analysis.	Samples were not held or preserved for analysis.									 On Thu 9/21/2023 12:46 PM Miguel Medina sent an email to Walter Mobley regarding this spill caused by PG&E. On Fri 9/22/2023 9:15 AM, Walter responded that the City should have reported the sewer spill as required by the revised WDR. On 9/24/2023 between 11am and 1pm, Miguel Medina attempted to enter all the required data required, including the illicit discharge complaint report. The CIWQS systems failed to record all the data and the report upload.  Additional attempts were made to upload the report which was successful on 9/25/2023. City is preparing to mitigate the effects of the spill as required by CDFW ahead of any impactful rain event. City plans to provide final documentation after spill mitigation work is completed. 	
5F	5SSO11202	Active	City of Fresno CS	County of Fresno	890488	1.1	Certified	Arturo Alvarez	Wastewater Manager, Certified		29-SEP-23	29-SEP-23	Monthly Category 3 Spill	16 N. Yosemite Ave.	08/19/2023 10:19	08/19/2023 10:50	08/19/2023 09:30				The spill originated from the private lateral cleanout servicing 16 N. Yosemite Ave.	36.74324	-119.80135	Lateral Clean Out (Private)			140	The spill was contained to the paved parking lot surface emanating from the private lateral cleanout.	N						140	Paved Surface		The spill was contained to the paved parking lot surface emanating from the private lateral cleanout.	Y	36.74325	-119.80135							08/19/2023 11:50	The spill volume estimation was calculated using visually estimated gallons per minute upon the responder's arrival, and using the reporting party's stated start time. During the field investigation, the spill was found to have returned to the system via the grated cleanout cover it emanated from.	Estimated spill start time determined by the reporting party's statements. Estimated spill end time determined during field investigation.	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		48	The spill was contained to a paved parking lot surface, and the total volume spilled was returned to the system via the slotted cleanout cover (grate). There is no sustained impact resulting from this spill event.	N	Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Upon arrival and in speaking with the property owner/reporting party, the responder was able to determine that the spill was contained to the paved surface immediately surrounding the private lateral cleanout. Upstream and downstream manholes were investigated, none of which showed signs of having overflowed as part of this spill event. The mainline experiencing the blockage was cleaned, and the spill returned to the system through the private lateral cleanout's grated cover. The responder followed-up with the property owner/reporting party the following business day and confirmed that the affected area was free of spill-related debris, and that they had not experienced further issues related to this spill event.	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		The affected mainline was referred to Preventive Maintenance for Preventive Root Cycle cleaning; roots were cut out on 08-23-23 and the mainline is scheduled for chemical root treatment in October 2023.		08/19/2023 15:05	Upon arrival, the responder witnessed the private cleanout at 16 N. Yosemite Ave. - located in a fenced-in parking lot - overflowing at a rate of approximately 1 GPM. After finding the MH upstream holding, the responder called his Secondary to bring out a Combo. Upstream and downstream manholes were investigated, none of which showed signs of having overflowed as part of this spill event. The mainline experiencing the blockage (2654-32-2654-113) was cleaned, MHs 2654-32 & 2654-43 were vacuumed due to heavy grease, and the spill returned to the system through the private lateral cleanout's grated cover. The property owner was no longer available once mainline cleaning was finished, but the responder could see through the fence that the spill had returned to the system, and did not see any visible debris; this was confirmed the following business day by the property owner, that the affected area did not require further attention.		n/a	08/23/2023 07:45														n/a	System modification - Rehabilitation of manhole number 2654-32. Operation and maintenance program modifications - Added to the Preventive Root Cycle cleaning schedule.	Added to Preventive Root Cycle cleaning in yearly intervals of 1, 1, 2, and 3 thereafter.	MH 2654-32 was scheduled for channel reshaping work the week of 08-21-23. On 08-24-23, the Corrective Maintenance crew found that, due to structural deficiencies of the brick walls, the manhole would require complete rehabilitation. Barring any unforeseen circumstances, this work is scheduled for 10-05-23.	Video inspected sewer main 2654-32 to 2654-113.  Rehabilitation of manhole number 2654-32 scheduled for 10-05-2023.	n/a	(See 20.b.)	n/a	n/a	
5F	5SSO11202	Historical	City of Fresno CS	County of Fresno	890488	1.1	Certified	Arturo Alvarez	Wastewater Manager, Certified		29-SEP-23	29-SEP-23	Monthly Category 3 Spill	16 N. Yosemite Ave.	08/19/2023 10:19	08/19/2023 10:50	08/19/2023 09:30				The spill originated from the private lateral cleanout servicing 16 N. Yosemite Ave.	36.74324	-119.80135	Lateral Clean Out (Private)			140	The spill was contained to the paved parking lot surface emanating from the private lateral cleanout.	N						140	Paved Surface		The spill was contained to the paved parking lot surface emanating from the private lateral cleanout.	Y	36.74325	-119.80135							08/19/2023 11:50	The spill volume estimation was calculated using visually estimated gallons per minute upon the responder's arrival, and using the reporting party's stated start time. During the field investigation, the spill was found to have returned to the system via the grated cleanout cover it emanated from.	Estimated spill start time determined by the reporting party's statements. Estimated spill end time determined during field investigation.	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		48	The spill was contained to a paved parking lot surface, and the total volume spilled was returned to the system via the slotted cleanout cover (grate). There is no sustained impact resulting from this spill event.	N	Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Upon arrival and in speaking with the property owner/reporting party, the responder was able to determine that the spill was contained to the paved surface immediately surrounding the private lateral cleanout. Upstream and downstream manholes were investigated, none of which showed signs of having overflowed as part of this spill event. The mainline experiencing the blockage was cleaned, and the spill returned to the system through the private lateral cleanout's grated cover. The responder followed-up with the property owner/reporting party the following business day and confirmed that the affected area was free of spill-related debris, and that they had not experienced further issues related to this spill event.	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		The affected mainline was referred to Preventive Maintenance for Preventive Root Cycle cleaning; roots were cut out on 08-23-23 and the mainline is scheduled for chemical root treatment in October 2023.		08/19/2023 15:05	Upon arrival, the responder witnessed the private cleanout at 16 N. Yosemite Ave. - located in a fenced-in parking lot - overflowing at a rate of approximately 1 GPM. After finding the MH upstream holding, the responder called his Secondary to bring out a Combo. Upstream and downstream manholes were investigated, none of which showed signs of having overflowed as part of this spill event. The mainline experiencing the blockage (2654-32-2654-113) was cleaned, MHs 2654-32 & 2654-43 were vacuumed due to heavy grease, and the spill returned to the system through the private lateral cleanout's grated cover. The property owner was no longer available once mainline cleaning was finished, but the responder could see through the fence that the spill had returned to the system, and did not see any visible debris; this was confirmed the following business day by the property owner, that the affected area did not require further attention.		n/a	08/23/2023 07:45														n/a	System modification - Rehabilitation of manhole number 2654-32. Operation and maintenance program modifications - Added to the Preventive Root Cycle cleaning schedule.	Added to Preventive Root Cycle cleaning in yearly intervals of 1, 1, 2, and 3 thereafter.	MH 2654-32 was scheduled for channel reshaping work the week of 08-21-23. On 08-24-23, the Corrective Maintenance crew found that, due to structural deficiencies of the brick walls, the manhole would require complete rehabilitation. Barring any unforeseen circumstances, this work is scheduled for 10-05-23.	Video inspected sewer main 2654-32 to 2654-113.  Rehabilitation of manhole number 2654-32 scheduled for 10-05-2023.	n/a	(See 20.b.)	n/a	n/a	
2	2SSO10096	Active	Berkeley City Public Works CS	Berkeley City of Public Works	890489	1.7	Ready to Certify						Monthly Category 3 Spill	Cedar Shattuck	09/24/2023 05:00	09/24/2023 05:30	09/24/2023 04:30				Intersection of Cedar & Shattuck, sidewalk main.	37.87874	-122.26887	Gravity Mainline	Grease 		50	Water coming out of the cleanout caps & the lamp hole.	Y	Catch Basin	0				0	Drainage Conveyance System that discharges to surface water		Water went into the curb, Gutter and catch basin.	Y	37.87874	-122.26887							09/24/2023 07:00	Overflow emergency response plan, San Diego flow chart.	Based on the flow at the scene and San Diego flow chart.	Debris-General; Fats, Oil and Grease (FOG)		Gravity Mainline		Other (specify below)	HDPE	10	water went into curb, gutter & catch basin	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow	notified business owner	Vactor use. Cleaned and disinfect area.	Enforcement action against Fats, Oil, and Grease (FOG) source		increase cleaning maintenance.		09/24/2023 07:00	Grease deposits.		n/a	09/28/2023 08:03														n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a	
2	2SSO10095	Active	Benicia City CS	Benicia City	890491	1.2	Certified	John Gant Jr	Field Utilities and Streets Supervisor		05-OCT-23	05-OCT-23	Monthly Category 3 Spill	2060 Camel Rd	09/22/2023 10:11	09/22/2023 10:14	09/19/2023 10:00				Spill came out of a private sewer lateral cleanout. Photo attached.	38.0534	-122.13405	Lateral Clean Out (Private)			675	Spill flowed onto an unpaved area surrounding, and down from, the private clean out.	N						675	Unpaved Surface		Spill covered a an area around the cleanout that was 9' x 9', then flowed covering an area 70' x 3', and 70' x 1'.	Y	38.05334	-122.13402							09/22/2023 10:20	Calculation of the areas covered by the spill. L x W x D x 7.48	Calculation of the areas covered by the spill.	Root Intrusion		Gravity Mainline		Vitrified Clay		50	N/A	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Spill was not overflowing at time of arrival. Limited use of this facility and adjoining sewer main. Excavated top soil at site and rinsed down area and vacuumed with Vactor.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Jetted main with Vactor and inspected with CCTV camera to insure removal of roots. 		09/25/2023 08:29	Spill was caused by a blockage due to root intrusion of vitrified clay pipe. The roots were removed and the pipe was inspected. It has been added to the list of mains to be treated with root control, and the biannual cleaning list.		Investigation is complete and modifications to the maintenance have been implemented.	09/25/2023 09:02														N/A	This segment of sewer main has been added to the list of main treated with a root control product in addition to being added to the scheduled maintenance program.	Added to biannual cleaning schedule.	N/A	Inspected using CCTV camera.	N/A	N/A	N/A	Investigation is complete and modifications to the maintenance have been implemented.	
2	2SSO10212	Active	Vallejo Sfcd CS	Vallejo Flood & Wastewater District (formerly Vallejo San & Flood Control District)	890505	1.1	Certified	Justin Keating	Director of Field Operations		25-SEP-23	25-SEP-23	Monthly Category 3 Spill	822 Maine Street	08/18/2023 10:25	08/18/2023 10:37	08/18/2023 10:02				822 Monterey Street, Vallejo, CA 94590	38.10549	-122.24631	Inside Building or Structure; Lateral Clean Out (Private)			163	Inside basement of home and exterior, private lateral clean out.	N						163	Building or Structure; Paved Surface; Street/Curb and Gutter (2 3)		From exterior private clean out, down concrete walkway, driveway, then curb and gutter in front of home.										08/18/2023 11:34	Measured volume method. Length x Width x Depth + 50 gallons removed by 5 gallon buckets = 162.79 gallons total.	Resident originally called plumber to resolve issue. Plumber removed screw cap from private cleanout, resulting in a spill. Plumber informed District staff he removed cap just after 10:00. District staff recorded end time when blockage was cleared in main line.	Pipe Structural Problem/Failure - Controls; Root Intrusion	Root intrusion located at pipe void.	Gravity Mainline		Vitrified Clay		55	Spill impacted basement, walkway, driveway, and curb/gutter in front of home.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	District staff cleaned impact from spill, Restoration company performed further cleaning and sanitizing inside basement of home.	Cleared blockage in gravity mainline, estimated spill volume, cleaned impacted area, procured restoration services company to clean and sanitize interior basement.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		Performed 2 main line underground repairs to fix voids and offsets in pipe.		08/18/2023 12:30	CCTV inspection found root intrusion coming from a pipe void, and a large pipe offset located at a joint.		None	08/22/2023 14:53														NA	NA	No	Underground repairs were performed in 2 separate sections of this main line, as part of the post spill response.	Underground repairs were performed in 2 separate sections of this main line, as part of the post spill response.	NA	See attached	NA	None	
4	4SSO10491	Active	Terminal Island CS	Los Angeles City Bureau of Sanitation	890513	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		02-APR-24	02-APR-24	Monthly Category 3 Spill	750 West Santa Cruz Street	09/25/2023 20:52	09/25/2023 21:40	09/25/2023 20:52				The initial crew arrived at 9:40 P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	33.744761	-118.293441	Lateral Clean Out (Private)			830	Pictures Of The Sanitary Sewer Overflow	Y	28 gallons entered a privately owned storm drain and was captured at City of Los Angeles storm drain maintenance hole at Marshall Court and Sepulveda Street.	0				830	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	33.744761  118.293441	Y	33.744761	-118.293441							09/25/2023 21:45	Spill flowrate and volume determination based on flowout pickhole or opening 	Diameter of pickhole or opening3.5inches Height of water out of pickhole/opening0.125inches Flowrate per pickole/opening (gpm)16gpm # of pickholes/openings1 Total flowrate (gpm)16gpm Duration of spill (minutes)53minutes Total flow (gallons)830gallons 	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		107	It was estimated that approximately 830 gallons of sewage backed out of the sewer as a result of the blockage where it entered the properties of 742 West Santa Cruz Street and 750 West Santa Cruz Street. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		On Monday, September 25, 2023 at 8:52 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 750 West Santa Cruz Street (TG 824-B4). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 9:45 PM. The cause of the blockage was attributed to Fats, Oils, and Grease (FOG) accumulation. All necessary clean-up was then performed.  It was estimated that approximately 830 gallons of sewage backed out of the sewer as a result of the blockage where it entered the properties of 742 West Santa Cruz Street and 750 West Santa Cruz Street. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Pipeline Will Be Placed On A Semi-Annual Maintenance Schedule.		09/25/2023 21:45	On Monday, September 25, 2023 at 8:52 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 750 West Santa Cruz Street (TG 824-B4). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 9:45 PM. The cause of the blockage was attributed to Fats, Oils, and Grease (FOG) accumulation. All necessary clean-up was then performed.  It was estimated that approximately 830 gallons of sewage backed out of the sewer as a result of the blockage where it entered the properties of 742 West Santa Cruz Street and 750 West Santa Cruz Street. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   		None At this Time.	09/25/2023 21:45														None At This Time.	Pipeline Will Be Placed On A Semi-Annual Maintenance Schedule.	Pipeline Will Be Placed On A Semi-Annual Maintenance Schedule.	None At This Time.	None At This Time.	None At This Time.	Pipeline Will Be Placed On A Semi-Annual Maintenance Schedule.	On Monday, September 25, 2023 at 8:52 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 750 West Santa Cruz Street (TG 824-B4). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 9:45 PM. The cause of the blockage was attributed to Fats, Oils, and Grease (FOG) accumulation. All necessary clean-up was then performed.  It was estimated that approximately 830 gallons of sewage backed out of the sewer as a result of the blockage where it entered the properties of 742 West Santa Cruz Street and 750 West Santa Cruz Street. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	None At this Time.	
2	2SSO10105	Active	Central Contra Costa Sd CS	Central Contra Costa Sanitary District	890518	1.2	Certified	Paul Seitz	Collection System Division Manager		26-OCT-23	26-OCT-23	Monthly Category 3 Spill	520 Moraga Way Orinda 	09/21/2023 12:20	09/21/2023 12:24	09/21/2023 09:00				Spill discharged from private laterals of 516 & 520 Moraga Way.  	37.85402	-122.15287	Lateral Clean Out (Private)			211	Spill discharged from private clean out of 520 Moraga Way, then flowed across driveway and into drainage conveyance system. Spill also discharged from private clean out of 516 Moraga Way and onto driveway and yard.	Y	The spill entered a dry drainage swale.  	211				211	Drainage Conveyance System; Paved Surface; Unpaved Surface		Spill discharged from private clean out of 520 Moraga Way, then flowed across driveway and into drainage conveyance system. Spill also discharged from private clean out of 516 Moraga Way and onto driveway and yard.	Y	37.84843	-122.1524							09/21/2023 12:31	By using our spill chart we estimated the spill rate to be .5 gallons a minute for each lateral. Spill discharged for 211 minutes for a total of 211 gallons.	We interviewed the homeowner of 520 Moraga Way who's best estimate of the start time was 09:00.	Other (specify below)	Root intrusion and rags	Gravity Mainline		Vitrified Clay		73	The spill traveled approximately 2000' in a dry drainage swale. No wildlife of any kind was observed. We requested a biological review from a third party (unbiased) consultant. He was satisfied with our spill response efforts and gave no other recommendations.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Contained all of spill by using our portable dam. We flushed the drainage conveyance stystem with 89,000 gallons of dechlorinated water and we pumped all of that back into our system. A restoration company was hired to clean up the yards of addresses. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Review CCTV in our bi-weekly Operations meeting and discuss increasing frequency of cleaning or if rehabilitation is needed. 		09/22/2023 03:30	Observed roots and (un)flushable wipes on mechanical cleaning tool when removed after clearing blockage.		Reviewed CCTV and maintenance records at 10-10-23 Operations meeting. Due to condition of pipe (good) and cause of spill (unflushable wipes) and current cleaning schedule, no change in cleaning schedule was deemed necessary.	09/27/2023 07:30														N/A	 Review CCTV in our bi-weekly Operations meeting and discuss increasing frequency of cleaning or if rehabilitation is needed. 	 Schedule not adjusted. Spill caused by heavy flushable wipes that are not really flushable.	 Not in the near future. Our Engineering department will evaluate the repair or replacement of this segment during review of the geographical area for District projects.	 CCTv'd after spill to determine condition of pipe and contributing factors.	See 20.d.2	 See attached maintenance schedule.	 After review of our spill response, no modifications were required.	Reviewed CCTV and maintenance records at 10-10-23 Operations meeting. Due to condition of pipe (good) and cause of spill (unflushable wipes) and current cleaning schedule, no change in cleaning schedule was deemed necessary.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	890520	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	26-SEP-23	28-SEP-23	28-SEP-23	Category 1 Spill	287 Elysean Fields Drive, Oakland, Ca	09/23/2023 12:06	09/23/2023 13:30	09/23/2023 11:30	09/23/2023 14:08	23-6109		Crawl Space from the property at 287 Elysean Fields Drive: The crawl space was flooded with 6  of water.  290 Elysean Fields Drive: Lateral Clean Out (Private) was overflowing on the side of the property and flowing into the Separate Storm Drain in front of the property.	37.75916	-122.13083	Inside Building or Structure; Lateral Clean Out (Private)			3472	Crawl Space from the property at 287 Elysean Fields Drive: The crawl space was flooded with 6  of water.  290 Elysean Fields Drive: Lateral Clean Out (Private) was overflowing on the side of the property and flowing into the Separate Storm Drain in front of the property.	Y	Separate Storm Drain in front of the property  AT 290 Elysean Fields Drive, it flows to storm system12  RCP.	0	480	12  RCP storm system pipe that flows into Arroyo Viejo creek.	480	2992	Building or Structure; Street/Curb and Gutter (2 3); Surface Water		Crawl Space from the property at 287 Elysean Fields Drive: The crawl space was flooded with 6  of water.  290 Elysian Fields Drive: Lateral Clean Out (Private) was overflowing on the side of the property and flowing into the Separate Storm Drain in front of the property.	Y	37.75916	-122.13083							09/23/2023 02:30	Spill calculations was based on the eye account first noticing the spill. Start time and finish time was based on his first account witnessing the spill.  	40' L x 20' W x .5 D x 7.48= 2992 gallons Lateral Cleanout Private 2gpm x 180 minutes x 2=360 gallons Total spill 2992 + 360= 3,352 gallons.	Fats, Oil and Grease (FOG); Root Intrusion	Roots were also found in the downstream manhole.	Gravity Mainline		Vitrified Clay		90	360 gallons Spilled into the drainage conveyance system that leads to Arroyo Viejo creek..	N	Mitigated Effects of Spill (specify below); Restored Flow	Claim: packet was provided to homeowner at 287 Elysian Fields for restoration to recover spilled water, clean, and mitigate the affected areas of the spill.	Staff rinse down walkway curb and gutter, and vacuumed affected area were sewage spilled.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Sewer line will be placed on a six-month high frequency cleaning routine.  Work Order # 1464156. Work order # 1464166 for root removal and inspection every six months.	Sewer line will be placed on a six-month high frequency cleaning routine.  Work Order # 1464156. Work order # 1464166 for root removal and inspection every six months.	09/27/2023 11:00	CCTV found root infiltration at the downstream manhole causing the water and grease to build up inside of the main line.	N			Arroyo Viejo Creek	Stream/Creek	Arroyo Viejo Creek		None.	Other (specify below)	No impact.	N/A	0	Y	N												
2	2SSO10087	Active	Alameda City CS	Alameda City	890526	1.3	Certified	Erin Smith	Public Works Director	26-SEP-23	29-SEP-23	29-SEP-23	Category 1 Spill	516 Willow St	09/14/2023 13:30	09/14/2023 13:44	09/14/2023 11:11		-		See Attachment 	37.759704	-122.254906	Lower Lateral (Public)			12	See Attachment 	Y	30  RCP Storm Drain Pipe 	0	7	Lagoon 3	7	5	Drainage Conveyance System that discharges to surface water		See Attachment 	Y	37.759704	-122.254906							09/14/2023 13:57	see attached	see attached	Fats, Oil and Grease (FOG)		Lower Lateral		Vitrified Clay		60	Only 7 gallons entered the storm system, which discharges to a lagoon system. No visual imapcts on surface water	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Staff arrived on scene and onyl foun evidence of a spill - dried water and toilet paper. While staff was checking the lateral, it surcharged until flow was restored. Staff cleane the site and returned a portion of the spill to the collection system.	Added Sewer to Preventive Maintenance Program; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause		Pipe was inspected and added to the peventive maintenance program. Staff also filed a case with EBMUD, who implements the City's FOG follow up.	NA	09/14/2023 13:44	The spill was caused by grease in the line.	N			SF Bay	Other (specify below)	Lagoon		None	Temporary Restricted Use		City	0	N	N												
4	4SSO10397	Active	La Canada Flintridge City CS	La Canada Flintridge City	890529	1.3	Certified	Robert Swartz	Sr. CE	26-SEP-23	12-OCT-23	12-OCT-23	Category 1 Spill	1796-0350 (4510 Palm Drive, La Ca�ada Flintridge)	09/22/2023 08:50	09/22/2023 09:40	09/22/2023 08:00	09/22/2023 10:30	23-6094		CSMD Map Sheet No. 1796 Manhole No. 350 MMS No. 8455407 Sewage was coming out of Manhole No. 350	34.2132	118.21763	Manhole	Manhole No. 350		3000	A spill of 3000 gallons reached the city storm drain. 	Y	A spill of 3000 gallons reached the city storm drain at 4414 Foothill Blvd. 	0	0	A 3000-gallon spill reached the city storm drain at 4414 Foothill Blvd., which flows through Caltrans, unknown, and BI 0434 drains, and eventually leads to Verdugo Wash, connecting to the LA River.  	3000	0	Drainage Conveyance System that discharges to surface water		Spill reached the city storm drain at 4414 Foothill Blvd., which flows through Caltrans, unknown, and BI 0434 drains, and eventually leads to Verdugo Wash, connecting to the LA River.  	Y	34.21205	118.21725							09/22/2023 10:05	CWEA SSCSC Manhole Gauge Visual or Eyeball Method	CWEA SSCSC Manhole Gauge Visual or Eyeball Method	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		20	N/A	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow		Hydro jet equipment was used to clear the mainline grease blockage.  Afterward, the area was thoroughly washed with fresh water, and all necessary agencies were promptly notified of the situation.	Other (specify below)	Will inspect the mainline using CCTV to determine if further actions are needed. 	Will inspect the mainline using CCTV to determine if further actions are needed. 	N/A	09/22/2023 11:15	Will inspect the mainline using CCTV to determine if further actions are needed. 	Y	Will inspect the mainline using CCTV to determine if further actions are needed. 	11/22/2023 12:30	Verdugo Wash - LA River	River			N/A	Other (specify below)	No impact.	Army Corp	0	N	N											Will inspect the mainline using CCTV to determine if further actions are needed. 	
5S	5SSO10965	Active	Hangtown Creek CS	Placerville City	890530	1.3	Certified	Nicholas Stone	Director of Public Works 	26-SEP-23	12-OCT-23	12-OCT-23	Category 1 Spill	3128 cedar ravine road	09/23/2023 07:54	09/23/2023 09:15	09/23/2023 06:15		-		Spill originated from hole in top of the pipe. sewage ran from the hole in pipe down the dry creek bed 25 feet before the blockage self relived and stopped the spill before operator arrived.  spill was about 2 feet wide and 25 feet long	38.72581	-120.79441	Gravity Mainline			93	Pictures are of hole in pipe and extent of spill boundaries.	N				Photographs of the where the spill discharged, of the clean up efforts and after the clean up was done.	93	20	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Unpaved Surface		The spills only destination was cedar ravine dry creek bed. From the hole in the sewer main to 25 feet down the creek from defect and 2 feet wide in the widest areas. spill was not actively flowing when crew arrived on scene. 	Y	38.72591	-120.79445	38.72591	-120.79447	38.72578	-120.79437	38.72577	-120.79439	09/23/2023 09:15	Spill was not actively flowing when crews arrived on scene so we relied on Area Volume estimation. 25x2.5x80%x.25x7.48	Area Volume estimation. 25x2.5x80%x.25x7.48 =93.5	Damage by Others Not Related to Collection System Construction/Maintenance; Pipe Structural Problem/Failure - Controls		Gravity Mainline		Ductile Iron		60	minimal impact. no flow in the creek at this time. no  aquatic life observed in area. did not reach flowing waters.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		when crews arrived on scene the spill had relived itself and was not actively spilling. vactor started the process of cleaning up while other personnel  started to identify break in line. 	Repaired Facilities or Replaced Defect		The main had a defect in the top, The defect was just up from where 2 other previous repairs had been made. we decided to replace the  whole section do degraded pipe.	no milestones for this issue.	09/23/2023 15:00	unable to determine what cause back up, flushed the sewer and repaired  the defect in pipe that caused a discharge point in creek .	N			cedar ravine creek	Stream/Creek			no aquatic life observed in the DRY CREEK.	Temporary Restricted Use		no	0	N	N												
3	3SSO11524	Active	Monterey City CS	Monterey City	890537	1.6	Certified	Thomas Harty	Acting City Engineer	26-SEP-23	09-OCT-23	09-OCT-23	Category 1 Spill	Paluca Trattoria - 6 Fisherman's Wharf	09/26/2023 07:30	09/26/2023 07:30	09/25/2023 11:00	09/26/2023 09:20	23-6153		Business owner contacted City Building Maintenance (BM) around 3:15 p.m. on 09/25/23 about toilet issues and since they were not working the business voluntarily shut down. At 3:30 p.m. BM and Streets crews snaked the lateral and cleared the blockage. The next morning (09/26/23) BM returned to check the system, and observed a breakage in the lateral connection to the sewer main under the wharf and the lateral was leaking to the waterway below. BM staff immediately reported to their Manager who contacted the Public Works Director, who provided direction to investigate to Engineering who alerted the Harbor Office. From 8-11 a.m., BM staff troubleshoots the connection issue (faulty saddle connection) and uses a rubber gasket coupler to secure the lateral to the main and restore leak-free operational status. Harbormaster Office calls Cal OES 9:20 a.m. BM Manager is awaiting a Contractor quote with a plan to replace the lateral. See attached map & photos.(Lat: 36.60372, Long: -121.89295)	36.60372	-121.89295	Lower Lateral (Public)		Faulty point-of-connection for lateral where it connects to the sewer main	1200	Lateral runs under wharf approximately 100' where it connects to the City main which is also suspended beneath the wharf.  It is estimated that an intermittent flow rate of approximately 5 gallons per minute spilled into the ocean for a duration of about 4 hours before the business closed on 09/25/23 when it was experiencing the toilet issues. Then the faulty lateral connection was discovered the next morning and the coupler repair completed to restore flow. Visual monitoring has occurred in the days after with no spillage observed and no visible signs of sewage in the water nor any odor. See two (2) attached pdfs - Map & Photos, and Visual Observations.	Y	The spill was a direct discharge from the faulty business lateral to the Harbor/Pacific Ocean beneath Fisherman's Wharf.	0	0	Discharge point was the sewer lateral point of connection at the sewer main.  The 4-inch lateral's connection failure caused spillage to the ocean below.	1200	0	Surface Water		Spill discharged directly to ocean below from the defective sewer lateral underneath the Wharf deck at 6 Fisherman's Wharf 1 (36.603732, -121.89295).	Y	36.603732	-121.89295							09/26/2023 09:00	Based on discussion with restaurant owner and staff observations, flow rate estimated at 5 gpm for 4 hours of restaurant operations, although it's likely the flow was off and on.	Based on City staff observations and timeframes, and staff conversation with restaurant owner about operations.	Other (specify below)	Defect in lateral coupler at the attachment to the sewer main	Lower Lateral		Acrylonitr. Butadiene Styrene (ABS)	4-inch ABS	40	Primary impact was 1,200 gallons of restaurant sewage discharged to the ocean below the Wharf, with assumed water quality impacts related to bacteria, FOG, detergent, and toilet wastes. The assumed off/on nature of the spill likely caused a temporary cloudy appearance at the point of discharge into the receiving water below (of note: City staff noted this location was already cloudy this particular week due to the tidal dynamics occurring). No harmed or deceased wildlife were observed in the area over the three (3) days of visual monitoring in the vicinity. Please see the chronological photos in the Visual Observations Report.	N	Other Enforcement Agency Notified; Property Owner Notified; Restored Flow		Once broken lateral was observed, maintenance team worked diligently to securely reconnect the lateral to the main. No spill effects that could be  contained  were evident in the water due to dynamic nature of tidal and wave action and fluctuations. Harbormaster called CalOES. BM Manager is seeking a Contractor proposal for the permanent replacement of the existing sewer lateral through to connection at the main.	Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect		Although lateral repair was made the morning of the spill discovery, the City is currently awaiting a Contractor's proposal, and plans to perform a lateral replacement including new connection to main as soon as possible.	Tentative Schedule: City procurement process completion by Oct. 13, 2023, and replacement lateral and new connection to main installed by Oct. 20, 2023.	09/26/2023 11:00	9/25, 3:15 p.m. Wharf restaurant reports toilet issues. 3:30 p.m. Building Maintenance (BM) on-site with Streets to unplug line. 9/26, 7:30 a.m. BM staff return to check on matter, and observes a defective/leaking lateral connection the sewer main. Immediately reports to Supervisor & Manager, who contacts Public Works Director who involves Engineering & Harbor Offices, and Engineering sends staff to site for observations. BM actively works to reconnect pipe plus add rubber gasket around connection to restore flow (8-11 AM), and also checks on repair throughout the day (11-4) to ensure it's holding and leak-free. Harbormaster called OES at 9:20 a.m. (09/26/23). On 09/27, BM Plumbing  Contractor performed a site visit so they could prepare a proposal to replace the lateral and connection to the main.	N	No further investigation. City plans to perform a lateral replacement in this location as soon as possible.		Pacific Ocean	Ocean			None.	Other (specify below)	No County Health closures; no public access impact.	Q15 Answer is Pacific Ocean at Monterey Harbor (CIWQS glitch is causing #15.d answer to populate into Q15 box). Answer to #15.d. is as follows: Not for this spill (typically is Monterey County Health Dept.)	0	N	N											No further investigation. City plans to perform a lateral replacement in this location as soon as possible.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	890538	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2		12-OCT-23	12-OCT-23	Monthly Category 3 Spill	9709 Birch Street, Oakland Ca	09/22/2023 19:37	09/22/2023 21:00	09/23/2023 00:00				1 Lateral Clean Out (Private) at 9709 Birch St. 1 Lateral Clean Out (Private) at 9712 Birch St. 1 Lateral Clean Out (Private) at 9718 Birch St. 	37.74728	-122.16567	Lateral Clean Out (Private)			210	1 Lateral Clean Out (Private) at 9709 Birch St. 1 Lateral Clean Out (Private) at 9712 Birch St. 1 Lateral Clean Out (Private) at 9718 Birch St. Sewage spilled to sidewalk, and mostly to the curb and gutter at both sides of street. Those amounts were recovered at the gutters. A small amount of the spill reached the nearest storm drain, it was contained and also was recovered.	Y	 Two gallons spilled into a Storm drain inlet eight inches in diameter where it was contained and recovered.	2				210	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		1 Lateral Clean Out (Private) at 9709 Birch St. 1 Lateral Clean Out (Private) at 9712 Birch St. 1 Lateral Clean Out (Private) at 9718 Birch St. Sewage spilled to sidewalk, and mostly to the curb and gutter at both sides of street. Those amounts were recovered at the gutters. A small amount of the spill reached the nearest storm drain, it was contained and also was recovered.		37.74745	-122.16523	37.74734	-122.16523					09/23/2023 00:00	Gutter: 57'L x 2'W x .04'D x 77.48-Gal = 34 Gallons Driveway (Gutter): 18'L x 2'W x .25'D x 7.48-Gal = 67 Gallons Driveway (Gutter): 18'L x 1'W x .25'D x 7.48-Gal = 34 Gallons Driveway (Gutter): 12'L x 3'W x .1325'D average x 7.48-Gal = 36 Gallons Average Depth: .04' + .08' + .33'+ .08' / 4 = .1325' Driveway (Gutter): 51'L x 1'W x .04'D x 7.48-Gal =15 Gallons Sidewalk: 5'L x 5'W x .06'D x 7.48-Gal = 11 Gallons Storm Line: 25'L x .33'W x .04'D x 7.48-Gal =2 Gallons Total Spill: 34 + 67 + 34 + 36 + 15 + 11 + 2 = 210 Gallons	Start time was based on witness account, property tenant. End time was based on responding sewer crew when they cleared the sewer blockage in the mainline.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		124	Sewage spilled to sidewalk, and mostly to the curb and gutter at both sides of street. Those amounts were recovered at the gutters. A small amount of the spill reached the nearest storm drain, it was contained and also was recovered.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		1 Lateral Clean Out (Private) at 9709 Birch St. 1 Lateral Clean Out (Private) at 9712 Birch St. 1 Lateral Clean Out (Private) at 9718 Birch St. Sewage spilled to sidewalk, and mostly to the curb and gutter at both sides of street. Those amounts were recovered at the gutters. A small amount of the spill reached the nearest storm drain, it was contained and also was recovered.	Added Sewer to Preventive Maintenance Program		Gravity Mainline will be placed on 6 Month Routine Maintenance Program.		10/12/2023 10:30	CCTV inspection found the gravity mainline broken, and a dig spot repair work order has been created.		CCTV inspection has been completed, CCTV found the gravity mainline broken, and a dig spot repair work order has been created.	10/12/2023 10:30														N/A	Gravity Mainline will be placed on 6 Month Routine Maintenance Program.	Gravity Mainline will be placed on 6 Month Routine Maintenance Program.	N/A	CCTV inspection found the gravity mainline broken, and a dig spot repair work order has been created.	N/A	Gravity Mainline has been placed on 6 Month Routine Maintenance Program, WO # 1466572.	Gravity Mainline has been placed on 6 Month Routine Maintenance Program. CCTV inspection found the gravity mainline broken, and a dig spot repair work order has been created.	CCTV inspection has been completed, CCTV found the gravity mainline broken, and a dig spot repair work order has been created.	
5F	5SSO11202	Active	City of Fresno CS	County of Fresno	890546	1.1	Certified	Arturo Alvarez	Wastewater Manager, Certified		29-SEP-23	29-SEP-23	Monthly Category 3 Spill	1283 N. Delno Ave.	08/25/2023 10:33	08/25/2023 10:48	08/25/2023 09:00				The spill originated at starter MH 2352-14, on the west side of N. Delno Ave., between W. Hedges Ave. and W. Hammond Ave.	36.75895	-119.81999	Manhole			265	The spill was contained to the sidewalk immediately surrounding MH 2352-14, and the street/curb & gutter from MH 2352-14 south on N. Delno Ave. to just north of W. Olive Ave.	N						265	Paved Surface; Street/Curb and Gutter (2 3)		The spill was contained to the sidewalk immediately surrounding MH 2352-14, and the street/curb & gutter from MH 2352-14 south on N. Delno Ave. to just north of W. Olive Ave.	Y	36.75895	-119.81998	36.75773	-119.81997					08/25/2023 11:40	The spill volume estimation was calculated using average measurements of the total spill area.	Spill start time based on reporting party's statement. Spill end time based on the time the mainline blockage was broken.	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		82	There is no sustained impact resulting from this spill event. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		The nearest FMFCD drain inlet was protected with dirt and sandbags at 11:20. After documentation and breaking the blockage, the affected spill area was cleaned and sanitized.	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		Roots cut out of affected mainline 2352-22-2352-23, and the mainline was cleaned. 		08/25/2023 14:02	Upon arrival, responders confirmed starter MH 2352-14 was actively overflowing at a rate of approximately 1 GPM. Downstream MHs were checked and none found to be overflowing; five houses available during the field investigation and connected to the affected mainline stated that they were not experiencing any sewer issues. The blockage was broken, the affected mainline was cleaned, and the spill area was cleaned and sanitized. 		n/a	08/25/2023 14:02														n/a	Affected mainline referred to Preventive Maintenance for review of cleaning schedule/methods.	n/a	MH 2352-71 referred to Corrective Maintenance for installation of house pad around MH.	Affected mainline inspected as part of initial investigation, and as follow-up after cleaning and root-cutting, on 08-30-23.	n/a	Affected mainline inspected as part of initial investigation; found a large root mass coming into the mainline from a lateral connection. The mainline had roots cut on 08-29-23.	n/a	n/a	
5F	5SSO11202	Historical	City of Fresno CS	County of Fresno	890546	1.1	Certified	Arturo Alvarez	Wastewater Manager, Certified		29-SEP-23	29-SEP-23	Monthly Category 3 Spill	1283 N. Delno Ave.	08/25/2023 10:33	08/25/2023 10:48	08/25/2023 09:00				The spill originated at starter MH 2352-14, on the west side of N. Delno Ave., between W. Hedges Ave. and W. Hammond Ave.	36.75895	-119.81999	Manhole			265	The spill was contained to the sidewalk immediately surrounding MH 2352-14, and the street/curb & gutter from MH 2352-14 south on N. Delno Ave. to just north of W. Olive Ave.	N						265	Paved Surface; Street/Curb and Gutter (2 3)		The spill was contained to the sidewalk immediately surrounding MH 2352-14, and the street/curb & gutter from MH 2352-14 south on N. Delno Ave. to just north of W. Olive Ave.	Y	36.75895	-119.81998	36.75773	-119.81997					08/25/2023 11:40	The spill volume estimation was calculated using average measurements of the total spill area.	Spill start time based on reporting party's statement. Spill end time based on the time the mainline blockage was broken.	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		82	There is no sustained impact resulting from this spill event. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		The nearest FMFCD drain inlet was protected with dirt and sandbags at 11:20. After documentation and breaking the blockage, the affected spill area was cleaned and sanitized.	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		Roots cut out of affected mainline 2352-22-2352-23, and the mainline was cleaned. 		08/25/2023 14:02	Upon arrival, responders confirmed starter MH 2352-14 was actively overflowing at a rate of approximately 1 GPM. Downstream MHs were checked and none found to be overflowing; five houses available during the field investigation and connected to the affected mainline stated that they were not experiencing any sewer issues. The blockage was broken, the affected mainline was cleaned, and the spill area was cleaned and sanitized. 		n/a	08/25/2023 14:02														n/a	Affected mainline referred to Preventive Maintenance for review of cleaning schedule/methods.	n/a	MH 2352-71 referred to Corrective Maintenance for installation of house pad around MH.	Affected mainline inspected as part of initial investigation, and as follow-up after cleaning and root-cutting, on 08-30-23.	n/a	Affected mainline inspected as part of initial investigation; found a large root mass coming into the mainline from a lateral connection. The mainline had roots cut on 08-29-23.	n/a	n/a	
4	4SSO11365	Active	Unincorporated County Area CSMD South/County Sanitation District CS	Los Angeles Cnty DPW	890547	1.2	Certified	Robert Swartz	Sr. CE	10-OCT-23	10-OCT-23	10-OCT-23	Category 1 Spill	1534-0205 (5120 Goldleaf Circle, Los Angeles - Unincorporated County Area)	09/07/2023 15:20	09/07/2023 16:10	09/07/2023 15:11	09/07/2023 18:23	23-5756		CSMD Map Sheet No. 1534 Manhole No. 205 MMS No. 8412570  Spill originated from Manhole No. 205	33.9878	118.3698	Manhole			10000	Sewage flowed from Manhole No. 205 into a catch basin/storm drain on La Cienega Boulevard.	Y	Sewage flowed from Manhole No. 205 into a storm drain, which then connects to Centinela Creek. Centinela Creek further connects to Ballona Creek, ultimately leading to Charlie Beach.	50	9950	Sewage flowed from Manhole No. 205 into a storm drain, which then connects to Centinela Creek. Centinela Creek further connects to Ballona Creek, ultimately leading to Charlie Beach.	9950	50	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Sewage flowed from Manhole No. 205 into a catch basin/storm drain, which then connects to Centinela Creek. Centinela Creek further connects to Ballona Creek, ultimately leading to Charlie Beach.	N									09/07/2023 16:30	CWEA SSCSC Manhole Gauge	CWEA SSCSC Manhole Gauge	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		36	Beach closure	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow		Upon arrival, the manhole was overflowing. We used hydro jet equipment to clear the mainline blockage and set up a vacuum truck at the catch basin to remove the remaining sewage. We also performed a thorough cleaning of the spill-affected area and promptly notified the relevant agencies. 	Added Sewer to Preventive Maintenance Program; Other (specify below)	Inspect and monitor condition. 	Added sewer to preventive maintenance program and will inspect and monitor the condition. 	90-day Hydro Rootsaw periodic	09/07/2023 19:30	The responding crew determined the stoppage was between MH 204 and MH 205. The segment was hydro-cleaned to clear the obstruction and in the process trapped roots and observed associated grease accumulation. 	N			Charlie Beach	Ocean			Unknown	Public Closure		LA County Recreation Water Program	3	N	Y	Charlie Beach	Escherichia coli (E. coli), Enterococcus bacteria										
3	3SSO10244	Active	Carmel Area Wastewater District Collection System	Carmel Area Wastewater District	890556	1.3	Certified	Daryl Lauer	Collection Supervisor	27-SEP-23	06-OCT-23	06-OCT-23	Category 1 Spill	25809 Morse Dr	09/22/2023 16:58	09/22/2023 16:58	09/15/2023 11:00	09/22/2023 18:33	23-6101		Bottom of steep rugged unstable ravine with dense vegetation, downed trees, poison oak and ivy	36.54869	121.90815	Gravity Mainline	N/A	N/A	44159	294' from break to service rd then 960' down road to end point at open land. At 640' down from entering dirt rd. and mixing with ground water already flowing down rd. it made a split and turned toward the Hatton cyn drainage channel mixed with existing ground water from up stream.	Y	Hatton Cyn drainage channel that flows from upstream of spill site where ground water flows into and back out of the dirt roadway at a few places upstream. At 640' downstream it splits towards the drainage channel then disappears into the vegetation then to open land covered with vegetation	0	0	Photos taken of area where spill enter drainage channel	44159	0	Drainage Conveyance System that discharges to surface water		Spill discharged to heavily wooded canyon that ran to Hatton Canyon . See Attachment	Y	36.54845	-121.90832	36.54808	-121.90752	36.54661	-121.90727			09/22/2023 18:34	Flow mete data was used to get daily average flow. See attached	Start time was based off last time staff did not see an overflow in the canyon	Collection System Maintenance Failure (specify below)	Slide caused a lose of pipeline 	Gravity Mainline		Ductile Iron		77	Impact was very minimal as the discharge flow was in a heavily wooed canyon  not used by public. then flowed to a seasonal creek	N	Restored Flow		Area was checked for solids, due to the terrain and dense forested area clean	Repaired Facilities or Replaced Defect		Contractors will be onsite in the upcoming weeks to make a long term repair	Contractors will be onsite in the upcoming weeks to make a long term repair	09/22/2023 22:23	Slide caused a lose of pipeline. a temporary repair was made and a long term repair will be made in the coming weeks 	N			Hatton creek	Stream/Creek			N/A	Other (specify below)	No public impact	Did not close access	0	N	Y	See attachment 	Ammonia, Total Coliform, Fecal Coliform Enterococcus										
6A	6SSO11120	Active	Truckee Sanitary District CS	Truckee SD	890558	1.2	Certified	Eric Sundale	Superintendent		27-SEP-23	27-SEP-23	Monthly Category 3 Spill	10010 Church St.	08/22/2023 15:08	08/22/2023 16:03	08/22/2023 15:09				See attachment. Completed SSR with Photos.	39.32892	-120.18426	Lateral Clean Out (Private)	See attachment. Completed SSR with Photos.		126	See attachment. Completed SSR with Photos.	N						120	Paved Surface		See attachment. Completed SSR with Photos.										08/22/2023 15:10	See attachment. Completed SSR with Photos.	See attachment. Completed SSR with Photos.	Debris-wipes/Non-disposables; Pipe Structural Problem/Failure - Installation	Offsets and sags due to old age of lateral.	Lower Lateral		Vitrified Clay		50	See attachment. Completed SSR with Photos.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		See attachment. Completed SSR with Photos.	Repaired Facilities or Replaced Defect	Complete lateral replacement on 9/20/23	Complete lateral replacement on 9/20/23		08/22/2023 17:52	See attachment. Completed SSR with Photos.		None	08/22/2023 14:54														N/A	Complete lateral replacement on 9/20/23	Complete lateral replacement on 9/20/23. No PM schedule needed.	Complete lateral replacement on 9/20/23	Complete lateral replacement on 9/20/23	N/A	See Attached Repair Work Order	See attachment. Completed SSR with Photos.	None	
6A	6SSO11120	Historical	Truckee Sanitary District CS	Truckee SD	890558	1.2	Certified	Eric Sundale	Superintendent		27-SEP-23	27-SEP-23	Monthly Category 3 Spill	10010 Church St.	08/22/2023 15:08	08/22/2023 16:03	08/22/2023 15:09				See attachment. Completed SSR with Photos.	39.32892	-120.18426	Lateral Clean Out (Private)	See attachment. Completed SSR with Photos.		126	See attachment. Completed SSR with Photos.	N						120	Paved Surface		See attachment. Completed SSR with Photos.										08/22/2023 15:10	See attachment. Completed SSR with Photos.	See attachment. Completed SSR with Photos.	Debris-wipes/Non-disposables; Pipe Structural Problem/Failure - Installation	Offsets and sags due to old age of lateral.	Lower Lateral		Vitrified Clay		50	See attachment. Completed SSR with Photos.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		See attachment. Completed SSR with Photos.	Repaired Facilities or Replaced Defect	Complete lateral replacement on 9/20/23	Complete lateral replacement on 9/20/23		08/22/2023 17:52	See attachment. Completed SSR with Photos.		None	08/22/2023 14:54														N/A	Complete lateral replacement on 9/20/23	Complete lateral replacement on 9/20/23. No PM schedule needed.	Complete lateral replacement on 9/20/23	Complete lateral replacement on 9/20/23	N/A	See Attached Repair Work Order	See attachment. Completed SSR with Photos.	None	
4	4SSO10431	Active	Santa Monica City CS	Santa Monica City	890566	1.2	Certified	Ralph Valencia	Water/Wastewater Administrator		29-SEP-23	29-SEP-23	Monthly Category 3 Spill	SMH 31-1522 - 20th & Olympic (1731 20th Street)	09/27/2023 21:00	09/27/2023 21:30	09/27/2023 20:30				Spill appeared at one manhole and ceased by the time the crew arrived.	34.02361	-118.4741	Manhole			50	Operators indicate sewage was contained onsite located at the west side curb from the 10West freeway entrance to approximately 5o ft. south.	N						50	Paved Surface		Paved area is 20th street in Santa Monica. 	Y	34.02357	-118.47415							09/27/2023 09:30	Operators indicated that the blockage that caused the spill was partially broken when they arrived. The spill volume was visually estimated by responding staff.	Responding operators indicated the spill had already ceased by the time of the response. The start time estimation was based off the visual estimation of 50 gallons.	Debris from Construction		Gravity Mainline		Other (specify below); Vitrified Clay	VCP with Ribloc lining	21	Water ponded on the asphalt on 20th Street.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	Santa Monica Wastewater Crews CCTV'ed sewer line and extracted construction debris from consistent with material used for concrete.	Wastewater crews hydrojetted the main line during the response to ensure typical flow in the line. CCTV inspection was performed and construction debris was extracted from sewer line.	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Extract construction debris and notify possible responsible construction companies of the illicit disposal of construction debris to the sanitary sewer. Enforcement may be required.	Sewer line is on reoccurring maintenance schedule. Construction companies in the adjacent area shall be notified of event, enforcement may be required for responsible party.		09/28/2023 12:14	CCTV inspection revealed construction debris within sanitary sewer. Wastewater Crews extracted what appeared to be construction debris consistent with concrete work located in the sewer line and a manhole. Construction  manager for site adjacent to where the failure occurred has been notified. City of SM Engineering Division Project Manager for the site have also been notified. Enforcement documentation to be issued to possible responsible party.		Contacting contractors of adjacent construction site, notifying of illicit disposal to sanitary sewer. Contacting City's Engineering Division as they manage contractors that may illicitly access City sewers.	09/28/2023 12:21														Enforcement documentation indicating the illicit disposal of construction debris to the sanitary sewer may be issued to responsible party.	N/A. Sewer line appeared to be in operating condition accept for the illicit disposal of construction debris. 	N/A. This is isn't typically a reoccurring problem at this sewer line as it was in connection to new construction.	N/A. Routine maintenance of the sewer line shall be performed.	CCTV inspection of line was performed. no repair or replacement needed at this time. Just the extraction of construction debris.	N/A 	N/A	Hydrojetted main line to completely break blockage and continued throughout the rest of the line to ensure free flowing of sewage within the line.	Contacting contractors of adjacent construction site, notifying of illicit disposal to sanitary sewer. Contacting City's Engineering Division as they manage contractors that may illicitly access City sewers.	
2	2SSO10159	Active	Napa Sd CS	Napa Sanitation District	890575	1.3	Certified	Seth Rossi	Collection System Manager		29-SEP-23	29-SEP-23	Monthly Category 3 Spill	2056 Seville Dr. Napa, CA 94559	09/27/2023 08:19	09/27/2023 08:38	09/26/2023 07:00				Spill originated from manhole containing root intrusion. Manhole located in the side yard of address 2056 Seville Dr. Napa, CA. Manhole ID T65-056	38.28486	-122.25747	Other (specify below)	3  storm system area drain that was connected to the sewer system.		60	Spill reached dirt in front yard of 2056 Seville Dr., sidewalk, curb and gutter and one catch basin. All spill boundaries located in front of the property. 	Y	Storm system catch basin.	9				60	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		Dirt area in front yard of the property, sidewalk infront of the property, curb and gutter in front of the property and one storm system catch basin also located in front of the property.	N									09/27/2023 09:28	Area of saturated soil around storm system area drain, volume measurement of spill area by depth and total spill area on a paved surface.	Homeowner observations were used for determining the spill start time. Napa Sanitation crew member on scene checked the time when the spill stopped during the unplugging of the mainline.	Root Intrusion		Manhole		Concrete	Concrete Manhole	58	Spill affected area cleaned and vacuumed by combo truck.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	Cleaned all spill affected areas with combo truck. 	Absorbent used to build perimeter around spill appearance point. Combo truck used to rinse and vacuum all spill affected areas. Even though spill did not make it out of the storm system catch basin crews cleaned both upstream and downstream pipes connected to that catch basin.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		Manholes condition score and notes fields in GIS have been updated, thus this manhole will be on the list for upcoming projects. Modifications were made in the CMMS see 20.d.		09/27/2023 14:55	Both upstream and downstream pipes connected to the affected manhole were inspected with the cctv truck and PACP coded. Manhole located and uncovered by crews. Roots removed. Reaching out to the homeowner for the disconnection of the residential storm system drainage pipe connected to the sewer system will still need to happen.		Investigation has been completed.	09/27/2023 14:55														N/A	Instructions have been modified to both the upstream and downstream mainline segments connected to this manhole. Instructions in these work orders require checking this manhole during the cleaning of these mainline segments and removing roots if needed. Manhole also added to future root foam project lists. 	New instructions added to the upstream and downstream mainline segments connecting to this manhole. Instructions now requiring checking manhole T65-056 as part of the mainline cleaning schedule pm and removing root intrusion if found.	No planned schedule for rehabilitation at this time. However, this manholes condition score and notes fields have been updated in the GIS and will now be on the list for a possible upcoming project. 	Both the incoming and outgoing pipes connected to this manhole were inspected. Manhole was located and uncovered, and the root intrusion was removed.	N/A	CMMS updated to show modifications needed for correct cleaning. Changes also made in the GIS.	No spill response modifications needed at this time.	Investigation has been completed.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	890585	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	29-SEP-23	11-OCT-23	11-OCT-23	Category 2 Spill	540 Canyon Oaks, Oakland Ca	09/27/2023 15:53	09/27/2023 16:20	09/27/2023 20:13	09/27/2023 19:22	23-6195		Manhole in the back of the property on Easement was overflowing sewage into a V-Ditch. The V-Ditch was blocked to the downstream pipe, so all the sewage was contained within the V-Ditch	37.77235	-122.14709	Manhole			1707	Manhole in the back of the property on Easement was overflowing sewage into a V-Ditch. The V-Ditch was blocked to the downstream pipe, so all the sewage was contained within the V-Ditch	Y	V-Ditch part of drainage system.	1707	0			1707	Drainage Conveyance System; Other (specify below)	Manhole in the back of the property on Easement was overflowing sewage into a V-Ditch. The V-Ditch was blocked to the downstream pipe, so all the sewage was contained within the V-Ditch	Manhole in the back of the property on Easement was overflowing sewage into a V-Ditch. The V-Ditch was blocked to the downstream pipe, so all the sewage was contained within the V-Ditch	Y	37.77235	-122.14709							09/27/2023 20:13	Area measured in V-ditch. 1: 21'L x 1.08'W x .17'D 2: 9'L x 1.25'W x .58'D 3: 11'L x 1.58'W x 1.08'D 4: 7'l x 1.75'W x 1.25'W 5: 4'L x 3.25W x 1.5'D 6: 4'L x 3.92'W x 1.58'D  7: 12'L x 5'W x 2.42'D 8: 25'l x 4.75'W 2.17'D 9: 25'L x 4'W x 1.58'D  10: 25'L x 2.67'W x .83'D 11: 25'L x 1.5'W x .42'D 12: 10'L x 1.5'W x .42'D Total measurements: 178'L Average Width: 26.59'W / 12 = 2.21'W Average Depth: 14D / 12 = 1.16'D Total measurements triangle shape ditch: 178'L x 2.21'W x 1.16'D x 7.48-Gal / 2 = 1707 Gallons 	Start time was based on witness account the manager of the building complex. End time was based on crews when the blockage was cleared. 	Root Intrusion		Manhole		Polyvinyl Chloride (PVC)		30	Manhole in the back of the property on Easement was overflowing sewage into a V-Ditch. The V-Ditch was blocked to the downstream pipe, so all the sewage was contained within the V-Ditch	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	Area was washed down and cleaned.	 Contained all the spill, vacuumed all the spill, and the area was washed down and cleaned.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Line segment was placed on high frequency cleaning.	Six-month routine	10/06/2023 09:30	Main was televised and found to be in good condition. We found within the downstream manhole. Roots were removed by responding crews.	N												Y													
6A	6SSO11120	Active	Truckee Sanitary District CS	Truckee SD	890589	1.3	Certified	Eric Sundale	Superintendent		29-SEP-23	29-SEP-23	Monthly Category 3 Spill	11754 Chalet Rd.	08/30/2023 16:50	08/30/2023 15:00	08/30/2023 08:42				Please see attached Sewer Service Request (SSR) for details	39.34992	-120.25062	Lateral Clean Out (Private)			83	Please see attached Sewer Service Request (SSR) for details	N						83	Unpaved Surface		Please see attached Sewer Service Request (SSR) for details	N									08/30/2023 15:00	Please see attached Sewer Service Request (SSR) for details	Please see attached Sewer Service Request (SSR) for details	Pipe Structural Problem/Failure - Installation		Lower Lateral		Concrete		40	Please see attached Sewer Service Request (SSR) for details	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Please see attached Sewer Service Request (SSR) for details	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		Please see attached Sewer Service Request (SSR) for details		08/30/2023 19:00	Please see attached Sewer Service Request (SSR) for details		None	09/14/2023 16:30														N/A	N/A	N/A	Completed 9/14/23	Completed 9/14/23	N/A	Please see attached Sewer Service Request (SSR) for details	Please see attached Sewer Service Request (SSR) for details	None	
6A	6SSO11120	Historical	Truckee Sanitary District CS	Truckee SD	890589	1.3	Certified	Eric Sundale	Superintendent		29-SEP-23	29-SEP-23	Monthly Category 3 Spill	11754 Chalet Rd.	08/30/2023 16:50	08/30/2023 15:00	08/30/2023 08:42				Please see attached Sewer Service Request (SSR) for details	39.34992	-120.25062	Lateral Clean Out (Private)			83	Please see attached Sewer Service Request (SSR) for details	N						83	Unpaved Surface		Please see attached Sewer Service Request (SSR) for details	N									08/30/2023 15:00	Please see attached Sewer Service Request (SSR) for details	Please see attached Sewer Service Request (SSR) for details	Pipe Structural Problem/Failure - Installation		Lower Lateral		Concrete		40	Please see attached Sewer Service Request (SSR) for details	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Please see attached Sewer Service Request (SSR) for details	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		Please see attached Sewer Service Request (SSR) for details		08/30/2023 19:00	Please see attached Sewer Service Request (SSR) for details		None	09/14/2023 16:30														N/A	N/A	N/A	Completed 9/14/23	Completed 9/14/23	N/A	Please see attached Sewer Service Request (SSR) for details	Please see attached Sewer Service Request (SSR) for details	None	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	890610	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		01-APR-24	01-APR-24	Monthly Category 3 Spill	8320 West Hollywood Boulevard	09/29/2023 10:14	09/29/2023 11:24	09/29/2023 10:14				The initial crew arrived at 11:24 A.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.099476	-118.371177	Manhole			86	See Attached.	N	See Attached.	0				86	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	34.099476  118.371177	Y	34.099281	-118.371177							09/29/2023 11:29	Spill flowrate and volume determination based on flowout pickhole or opening 	Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening0.25inches Flowrate per pickole/opening (gpm)1gpm # of pickholes/openings1 Total flowrate (gpm)1gpm Duration of spill (minutes)85minutes Total flow (gallons)86gallons 	Debris-General		Gravity Mainline		Vitrified Clay		76	It was estimated that approximately 86 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		On Friday, September 29, 2023, at 10:14 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 8320 West Hollywood Boulevard (TG 593-A4). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 11:39 AM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.  It was estimated that approximately 86 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the system. 	Inspected Sewer Using CCTV to Determine Cause		Maintenance Schedule Modified.		09/29/2023 11:39	On Friday, September 29, 2023, at 10:14 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 8320 West Hollywood Boulevard (TG 593-A4). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 11:39 AM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.		None At This Time.	09/29/2023 11:39														None At This Time.	Maintenance Schedule Modified.	Maintenance Schedule Modified.	None At This Time.	None At This Time.	None At This Time.	None At This Time.	Maintenance Schedule Modified.	None At This Time.	
8	8SSO10617	Active	Eastern Municipal Water District CS	Eastern Municipal Water District	890625	1.2	Certified	Ken Tagney	Director of Water Reclamation		03-OCT-23	03-OCT-23	Monthly Category 3 Spill	Bethel Avenue, Hemet	09/29/2023 11:03	09/29/2023 11:42	09/29/2023 10:00				There was a stoppage in the main line on Truelson Ave between manhole number 17126 and 17125. With the main line being backed up the resident at 33700 Bethel Ave started to experience a sewer back up at the house. The resident called a plumber out on 9/29 to try and clear the blockage. Once the plumber was on site and pulled the clean out cap the sewer pressure released from the street and started to travel across the yard to Bethel Avenue.	33.74088	-117.07262	Lateral Clean Out (Private)			388	The spill flowed south from 33700  Bethel Avenue until it reach Bethel Avenue. Once the SSO reached Bethel Avenue it flowed northeast on Bethel Avenue until it reached the intersection of Bethel and Keith Avenue at which point the SSO pooled in the street. 	N						388	Street/Curb and Gutter (2 3)		33999 Keith Ave. Pooled up in the street. This is near the intersection of Bethel and Keith avenue. 	Y	33.74138	-117.06847							09/29/2023 13:14	The flow rate was estimated by visual observation of the water entering the street from the property. This estimation is achieved through operator experience and the use of field flow estimation charts. 	Spill start time was derived from the property owners plumber telling us what time they removed the sewer cleanout cap. The end time was derived from when EMWD crews restored flow to the main line ending the SSO.	Root Intrusion		Gravity Mainline		Other (specify below)	Truss Pipe 	43	The spill impacted the property at 33700 Bethel Avenue and the a portion of Bethel Avenue between the above address and 33999 Keith Avenue. 	N	Cleaned Up (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		EMWD crews responded to the SSO, restoring flow to the mainline, returning all SSO material to the sewer and cleaning the affected area using water and a vactor truck. 	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		The area has been added to the CCTV list as well as the trouble section list for annual cleaning. 		09/29/2023 15:00	The spill was caused by roots in the main line on Truelson Ave between manhole number 17126 and 17125.		No	09/29/2023 14:33														None. 	None	Has been added to the trouble section list for annual cleaning. 	No.  	No. 	No.	None. 	None. 	No	
2	2SSO10110	Active	Los Altos City CS	Los Altos City	890627	1.2	Certified	Aida Fairman	Public Works Director	02-OCT-23	03-OCT-23	03-OCT-23	Category 2 Spill	666 S. El Monte Ave.	09/08/2023 16:30	09/08/2023 17:00	09/06/2023 17:30		-		Northwest back end of 666 S. El Monte Ave. in the pool pump room.  Also, bathroom of Apt. #1.	37.37172	-122.11091	Inside Building or Structure		Spill also in bathroom of apartment #1 on the floor.	2107	Pool pump room located at the Northwest corner of 666 S. El Monte Ave.  Spill contained in the pump room and restoration company hired by the apartment manager remove spill and cleaned area.  Resident at apartment #1 cleaned spill. 	N	N/A	0	0			2107	Building or Structure		Northwest back end of 666 S. El Monte Ave. in the pool pump room.  Also, bathroom floor of Apt. #1.	Y	37.37172	-122.11091							09/08/2023 17:30	Volume estimation was done by measuring the area and calculating the spill.  See attachment volume estimation worksheet.	Start time and obtained from an interview of the property manager Melissa Harris who was on scene and who had first called a private plumber.  End time was based on our staff clearing the blockage in the mainline.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		70	Northwest back end of 666 S. El Monte Ave. in the pool pump room.  Also, bathroom floor of Apt. #1.	N	Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Standby crew responded to the location to find manholes G2S-309 and G2S-303 were holding.  Crews went to manhole G2S-310 to jet the line and clear the blockage.  Spill was contained in the pool pump room and later we found out a small amount in the bathroom of apt. #1.  Restoration company called by the property manager to clean spill in the pump room.  Resident of apt. #1 cleaned up the spill in their bathroom themselves. 	Added Sewer to Preventive Maintenance Program		Segments where the blockage was found have been added to our maintenance list.  Segments will also be televised to determine if any further follow up is needed.	Segment has already been added to our maintenance program.  Segment to be televised by the end of October.	10/03/2023 07:00	Grease found to be the cause of the spill at the time of the spill while crews cleared the blockage.  Segment to be televised to check for any other follow up.	Y	Need to complete contract with City's contractor in order to complete the televising.	10/31/2023 17:00										N												Need to complete contract with City's contractor in order to complete the televising.	
5S	5SSO10965	Active	Hangtown Creek CS	Placerville City	890629	1.2	Certified	Nicholas Stone	Director of Public Works	02-OCT-23	12-OCT-23	12-OCT-23	Category 1 Spill	2885 Mosquito Road 	09/28/2023 07:36	09/28/2023 07:48	09/28/2023 07:00		-		spill originated from man hole 26-29 pictures attached of the what the spill looked like upon arrival, no or very low flow coming out the vent hole in the manhole running down street to DI inlet. .	38.734576	120.78634614	Manhole			39	the spill was approximately 2.5x29ft stain  in the gutter pan and 13x12 stain in the street  the was a 3.5x7 wet spot where the spill entered the dry creek through a manhole the was the final destination of the spill	N	Straight drop through drain discharged directly to the creek. no drain conveyance system. 			spill entered a storm drain that dropped straight through to the creek that was dry. 	36	7	Paved Surface; Surface Water; Unpaved Surface		Spill exited the sewer system at the manhole vent hole and ran 12 feet to gutter pan where it ran down the gutter pan to the storm DI then entered the dry creek bed and was absorbed into the dirt .	Y	38.73457	-120.78641	38.73453	-120.78641	38.73451	-120.78648	38.73451	-120.78649	09/28/2023 07:45	Spill was not actively  spilling when we arrived on the scene. area volume estimation was the only reliable way to estimate the spill.  recovered sewage was collected in a 5 gallon buckets.	due to the small amount of staining on the pavement and the fact that mosquito road is a very busy commuter route it likely would  have been called in if  spilling for long period of time.	Siphon Failure		Siphon		Ductile Iron; Polyvinyl Chloride (PVC)		30	spill surged from manhole vent ran down the street to the gutter pan until it entered the storm drain inlet and dry creek bed.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	mitigated the spill from entering the creek by creating a dirt berm in front of the storm drain. spill was not flowing at operator arrival	 operators immediately stopped spill from entering the creek by creating a dirt berm in front of the storm drain. spill was not flowing at operator arrival. operators opened the lower access point and flushed the siphon multiple time verified the siphon was clean by dye testing with water flowing. they then started cleanup activities washing all cleanup water down the gutter pan and sucking it up with vactor. then put vactor tube down storm DI and suck out all contaminated surface dirt.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		cleaning frequency of siphon increased and engineering has been working with pubic works to see if the  siphon can feasibly be eliminated.	none at this time.	09/28/2023 10:50	Upon inspection of the debris baskets grease was determined to be the cause of the blockage in the siphon. when inspected by camera grease deposits were seen on walls of pipe.	N			Randolph Creek	Stream/Creek			No aquatic life observed in the dry creek bed,	Temporary Restricted Use		City of placerville.	0	N	N												
9	9SSO10649	Active	City of El Cajon CS	El Cajon City	890631	1.7	Certified	Mike James	Deputy Director of Public Works		10-OCT-23	10-OCT-23	Monthly Category 3 Spill	Rennete Ave	09/12/2023 08:35	09/12/2023 08:35	09/12/2023 08:30				This discharge took place at MH3916 located at the intersection of W Renette Ave and Estes St in El Cajon.	32.784063	-116.966616	Manhole			55	The spill was contained to the street, curb and gutter and storm drain inlet located at 898 Lura Ave.	Y	The spill stopped and was contained in storm drain inlet located at 898 Lura Ave.  	7				55	Drainage Conveyance System		The spill stopped and was contained in storm drain inlet located at 898 Lura Ave.		32.78411	-116.966549							09/12/2023 08:52	The eyeball method was used in determining the spill discharge and recovered volumes.  This method was used due to the short duration of the spill and because it was fully recovered.  Crews are trained on this method annually.	The crew that dicovered the spill was working in the immediate area and had direct knowledge that the spill started no earlier than 08:30.	Debris-General; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		68	There was no impact due to response time for cleanup and full discharge recovery.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Crew contained spill on the street with absorbent while a combination jetter broke the stoppage.  Cleanup and full recovery of the spill was performed using a combination jetter that washed down and vacuumed up the discharge. 	Added Sewer to Preventive Maintenance Program		Sewer pipe segment has been added to a high frequency maintenance schedule.		09/12/2023 09:45	Cause of spill was determined to be grease, wipes and debris.  This area has a large number of multifamily dwellings which have been known to be a contributing source of wipes and grease.		N/A	09/12/2023 09:45														N/A 	N/A	N/A	N/A	N/A	N/A	High Frequency Maintenace (HFM) Jetting RENETTE AT ESTES168FT  MH3917 TO MH3916  3MO SCHEDULE JETTING  	N/A	N/A	
5F	5SSO10774	Active	Yosemite Valley CS	US Dept of the Interior Park Service	890640	1.3	Certified	Cicely Muldoon	Superintendent	03-OCT-23	17-OCT-23	17-OCT-23	Category 2 Spill	MH L3	09/21/2023 09:00	09/21/2023 09:00	09/21/2023 09:00		-		A septic pumping truck was unloading the vehicle contents into manhole L3. This location is used for this purpose due to its proximity to the sewage pump station. The vehicle discharge valve broke off the vehicle spilling its contents on to the ground. All spilled sewage was recovered.	37.74387	-119.59592	Manhole			1300	A septic pumping truck was unloading the vehicle contents into manhole L3. This location is used for this purpose due to its proximity to the sewage pump station. The vehicle discharge valve broke off the vehicle spilling its contents on to the ground. All spilled sewage was recovered.	N						1300	Unpaved Surface		A septic pumping truck was unloading the vehicle contents into manhole L3. This location is used for this purpose due to its proximity to the sewage pump station. The vehicle discharge valve broke off the vehicle spilling its contents on to the ground. All spilled sewage was recovered.	Y	37.74387	-119.648753							09/21/2023 10:00	Vehicle size and pumping logs.	Vehicle driver operating the vehicle.	Other (specify below)	A septic pumping truck was unloading the vehicle contents into manhole L3. This location is used for this purpose due to its proximity to the sewage pump station. The vehicle discharge valve broke off the vehicle spilling its contents on to the ground. All spilled sewage was recovered.	Other (specify below)	The vehicle discharge valve broke off the vehicle spilling its contents on to the ground. All spilled sewage was recovered.	Other (specify below)	NA	0	Spill to unpaved surface. site was cleaned up and contents were lace into the sewage system.	N	Cleaned Up (specify below)		Liquids and solids collected and placed into the sewage pumping station, site cleaned up and disinfected.	Other (specify below)	Vehicle wasting valve and all connections are being replaced with stainless steel parts and better containment structure is being installed at MH L3.	Vehicle wasting valve and all connections are being replaced with stainless steel parts and better containment structure is being installed at MH L3.	Vehicle wasting valve and all connections are being replaced with stainless steel parts and better containment structure is being installed at MH L3.	09/21/2023 06:09	A septic pumping truck was unloading the vehicle contents into manhole L3. This location is used for this purpose due to its proximity to the sewage pump station. The vehicle discharge valve broke off the vehicle spilling its contents on to the ground. All spilled sewage was recovered.	N												N													
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	890642	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		01-APR-24	01-APR-24	Monthly Category 3 Spill	9750 North Amestoy Avenue	10/02/2023 13:50	10/02/2023 14:38	10/02/2023 13:50				The initial crew arrived at 2:38 P.M. and discovered a broken pipe serving the referenced area.  A contractor was mobilized to repair the broken pipe.	34.247944	-118.505683	Gravity Mainline			262	Spill Area.	N	None.					262	Other (specify below)	The crew was able to establish containment and and the contractor subsequently returned the entire back up amount to the sewer system.	34.247944  118.505683	Y	34.247944	-118.505683							10/02/2023 17:50	The SSO volume was estimated utilizing a standardized template which calculates the volume by using dimensional analysis.	Length21feet Width8feet Depth2.5inches0.2083feet  35.00ft3262gallons 	Pipe Structural Problem/Failure - Controls		Gravity Mainline		Vitrified Clay		62	It is estimated that approximately 262 gallons of sewage flowed from the sewer as a result of the damaged pipeline. The backup amount was contained within the property located at 17116 West Kinzie Street and subsequently it was returned to the sewer system by the contractor.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		On Monday, October 2, 2023, at 1:50 PM, Clean Water Conveyance Division (CWCD) received a report of sewer trouble at 9750 North Amestoy Avenue (TG 499-H1). A CWCD crew arrived at the incident location and determined that the 8-inch main line sewer serving the referenced area was spilling due to a damaged pipeline caused by a hillside slope failure. A City Contractor was mobilized to make all necessary repairs. All the necessary clean-up steps were performed.  It is estimated that approximately 262 gallons of sewage flowed from the sewer as a result of the damaged pipeline. The backup amount was contained within the property located at 17116 West Kinzie Street and subsequently it was returned to the sewer system by the contractor. 	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		It is estimated that approximately 262 gallons of sewage flowed from the sewer as a result of the damaged pipeline. The backup amount was contained within the property located at 17116 West Kinzie Street and subsequently it was returned to the sewer system by the contractor.		10/02/2023 17:50	On Monday, October 2, 2023, at 1:50 PM, Clean Water Conveyance Division (CWCD) received a report of sewer trouble at 9750 North Amestoy Avenue (TG 499-H1). A CWCD crew arrived at the incident location and determined that the 8-inch main line sewer serving the referenced area was spilling due to a damaged pipeline caused by a hillside slope failure. A City Contractor was mobilized to make all necessary repairs. All the necessary clean-up steps were performed.  It is estimated that approximately 262 gallons of sewage flowed from the sewer as a result of the damaged pipeline. The backup amount was contained within the property located at 17116 West Kinzie Street and subsequently it was returned to the sewer system by the contractor. 		None At This Time.	10/02/2023 17:50														None At This Time.	A City Contractor was mobilized to make all necessary repairs.	A City Contractor was mobilized to make all necessary repairs.	A City Contractor was mobilized to make all necessary repairs.	A City Contractor was mobilized to make all necessary repairs.	None At This Time.	Sanitary Sewer Overflow Report	Sanitary Sewer Overflow Report	None At This Time.	
2	2SSO10159	Active	Napa Sd CS	Napa Sanitation District	890652	1.4	Certified	Seth Rossi	Collection System Manager		04-OCT-23	04-OCT-23	Monthly Category 3 Spill	625 Rio Vista Dr. Napa, CA 94558	09/29/2023 12:23	09/29/2023 12:40	09/28/2023 12:00				See Attached Photos. 	38.31364	-122.28251	Lateral Clean Out (Public)			78	Spill boundary measurement's listed below. Property's Driveway 23' x 13' Driveway Apron 19' x 6' Mow Strip #1 5' x 6' x 4 depth Mow Strip #2 6' x 5' x 4 depth Curb & Gutter 47' x 1'  See Attached Photos.  	N						3	Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		Spill reached property's driveway, public sidewalk, curb and gutter and two dirt mow strip areas.  See Attached Photos.	N									09/29/2023 08:00	Volume measurement of spill area by depth and total area of spill size at multiple locations. Visual observations were used in determining the amount of the spill that was recovered. 	Homeowner and other resident comments were used in the determination of the spill start and stop times.	Other (specify below)	Solid blockage located approximately 3' downstream of public wye. Possible debris. No visual cause for blockage was apparent.	Lower Lateral		Other (specify below)	Asbestos Cement	57	Spill affected areas were cleaned and vacuumed by combo truck.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow	Cleaned and vacuumed all spill affected areas with combo truck. 	Lateral blockage was cleared, and flow was restored. Combo truck was called to clean and vacuum all spill affected areas.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Lateral was televised as a part of the spill response. No apparent cause for the spill was observed. However lateral will still be placed on a preventive maintenance program. See 20.d		09/29/2023 13:30	Lateral blockage was cleared, and flow was restored. Lateral was televised and inspected once blockage was cleared. Blockage occurred approximately 3' downstream of wye. No apparent cause for blockage was observed. 		Investigation has been completed.	09/29/2023 13:30														N/A	Lateral was placed on a preventative maintenance program to televise and clear sewer lateral if needed twice a year.	This was the first call for service at this property. A newly assigned preventive maintenance work order has been created.	No planned schedule for rehabilitation at this time.	Lateral was televised and inspected.	N/A	Our CMMS has been updated to reflect the new preventive maintenance work order needed for this location.	No spill response modifications needed at this time.	Investigation has been completed.	
2	2SSO10217	Active	West Valley Sd CS	West Valley SD	890653	1.2	Certified	Kelvin Hatchett	Operations Supervisor		17-OCT-23	17-OCT-23	Monthly Category 3 Spill	MH 8-089-95 located on Cherry Blossom Lane	09/26/2023 09:43	09/26/2023 09:56	09/26/2023 09:00				Manhole located on the sidewalk of Cherry Blossom Ln. Address to property is 800 Blossom Hill rd.	37.23683	-121.95737	Manhole			305	Spill originated on the sidewalk on the Cherry Blossom Ln. side of address 800 Blossom Hill Rd. proceeded into curb and gutter and flowed north down Cherry Blossom Ln and into catch basin CB-127U-17 on the corner of Blossom Hill Rd. and Cherry Blossom Ln.  Upon Arrival, spill was contained in gutter on Cherry Blossom Ln. south of the catch basin on the corner with a combination of dirt and absorbents.  Spill was tracked down drainage conveyance system to dry point and fully recovered after it had traveled east through conduit 4574, 4575, 4580, 4589 on Blossom Hill Rd. and fully captured from MH 127U-13	Y	Spill flowed into catch basin CB-127U-17 and through drainage conveyance segments 4574,4575,4580 and 4589 and fully captured from MH 127U-13	257				305	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Sidewalk, curb and gutter, and drainage conveyance system on Cherry Blossom Ln and Blossom Hill Rd.	Y	37.23683	-121.95737	37.23683	-121.95737	37.23683	-121.95737			09/26/2023 10:01	5 GPM based on WVSD documented visual flow rate.  Total of 61 minutes as reported from reporting party.  Reported start time of 9:00 am, spill end time 10:01 a.m.  Also was able to double check spill volume through amount recovered.  925 gallons were recovered into tank and 620 gallons of water were used during washdown. 48 Gallons were contained in sidewalk, curb and gutter and the balance of 257 gallons was contained inside drainage conveyance system.  All 305 gallons were fully recovered.	Spill start time determined from discussions with the full time maintenance staff at property of 800 Blossom Hill Rd and end time was determined by WVSD crews that were able to relieve blockage.	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		14	Spill impacted sidewalk, and curb and gutter, but was fully captured	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Crews upon arrival were able to contain spill in the curb and gutter, then contain the portion of spill that had reached drainage conveyance system.  Pictures were taken and spill was relieved with HVC unit.  Vacuum unit was placed downstream of spill and drainage conveyance system was cleaned and vacuumed.  48 gallons of spill was contained in curb, gutter and sidewalk and 257 gallons was contained in drainage conveyance system.  Vacuum unit was able to recover total spill, first from the drainage conveyance system where the conduit was cleaned and vacuumed, then next from contained portion of spill in curb and gutter.  Sidewalk, curb, and gutter were washed down and vacuumed up.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Cleaning frequency was adjusted and plan to speak with management of the facility to educate residents on FOG and what can and can not be disposed of in the sewer		09/26/2023 11:18	Excess FOG and non flushable debris coming from complex at 800 Blossom Hill Rd.  Flow from upstream manhole to downstream manhole could be impeded by the flow line downstream and the affected asset not having enough grade.		Flow investigation and Education effort of residents of the complex to which the main is directly tied to.	09/28/2023 09:30														None at this time	Cleaning frequency adjusted to every two months while investigation is ongoing about possible flow adjustments into D/S manhole	Adjusted to every 2 months from every 6 months	None at this time	Asset was inspected with CCTV, no repair scheduled at this time	None at this time	Documentation in file	Spill contained, stoppage was broken by HVC combo unit.  Drainage conveyance system was cleaned and vacuumed up and the sidewalk, curb and gutter area was washed down and vacuumed up.	Flow investigation and Education effort of residents of the complex to which the main is directly tied to.	
8	8SSO10620	Active	EVMWD Regional Plant CS	Elsinore Valley Municipal Water District	890654	1.1	Certified	Jesus Barron	Collections System Worker III		26-MAR-24	26-MAR-24	Monthly Category 3 Spill	30440 Sparkle Drive	10/03/2023 08:37	10/03/2023 10:10	09/30/2023 08:30				Sewer coming out of manhole	33.67771	-117.26818	Manhole			96	See Attachment	N						0	Unpaved Surface		See above	Y	33.67771	-117.26815							10/03/2023 10:15	Approximately 1 Gallon an hour spilled in 96 hours 	A visual of 1 gallon an hour and impacted area surrounding manhole 	Root Intrusion		Gravity Mainline		Vitrified Clay		53	Root intrusion cause blockage  	N	Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow		Cleaned and CCTV gravity main line	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		Plan to rehab line with a Packard unit (steel sleeve) to correct root intrusion 		10/03/2023 12:30	CCTV gravity main and identified broken pipe with root intrusion. 		CCTV inspection	10/03/2023 14:00														N/A	Rehab area	No adjustment	Install Packard unit	Repaired	No	None	None	CCTV inspection	
3	3SSO10307	Active	Pismo Beach CS	Pismo Beach City 	890658	1.2	Certified	William Haas	Utilities Manager	03-OCT-23	03-OCT-23	03-OCT-23	Category 2 Spill	1621 Price St, Pismo Beach, Ca	10/01/2023 10:25	10/01/2023 10:35	10/01/2023 10:20	10/01/2023 13:30	23-6264		Spill originated from a force main air vac valve.  It traveled across a parking lot into a drainage system that was blocked to stop flow to the ocean.	35.14688	120.64556	Force Main			1550	It flowed down the street, across a parking lot, into a drain that was blocked before reaching the ocean.	Y	its a series of drains to a culvert that leads to a storm drain.  Blocked at the storm drain.	1550	0			1550	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Valve at force main.  Path of travel was the street, to a parking lot, to a drain to a storm drain that was blocked.	Y	35.14688	120.64556							10/01/2023 12:45	estimated flow from the street visually.  approximately 10gpm	Using a visual guide and prior knowledge of staff.  Also, based on what was captured in the Vac truck	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure		Force Main		Polyvinyl Chloride (PVC)		22	Impact was minimal.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned All Spill to Sanitary Sewer System	hosed, vactored up, bleached	Dammed the storm drain. closed valves and bypassed the damaged section. hosed everthing to a vactor truck. bleached. 	Other (specify below)	digging up and replacing failed parts.	going to repair bad valve or saddle that failed.	NA	10/01/2023 13:45	Digging it up to assess.	N												N													
9	9SSO10656	Active	City of Poway CS	Poway City	890659	1.4	Certified	Troy DePriest	Assistant Director of Public Works - Utilities 	03-OCT-23	12-OCT-23	12-OCT-23	Category 2 Spill	M4-020-SM	09/28/2023 18:00	09/28/2023 18:21	09/28/2023 18:00	09/28/2023 23:28	23-6224		Public Sewer manhole located in asphalt roadway. 	32.99555	-117.05684	Manhole			1543	Asphalt roadway, curb and gutter, storm drain box, and pipe.	Y	500 foot long, 54 inch, RCP, storm drain pipe.	1543	0			1543	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Spill reached adjacent storm drain box and terminated in a 54-inch storm drain pipe.	Y	32.9945	-117.05773							09/28/2023 19:18	We used the DKF Solutions Group Smart Overflow Volume Estimation Workbook.  	Staff communicated with adjacent businesses to determine spill start time. Staff documented time blockage was cleared to end spill in the field. 	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		47	No impact to a water way. Final spill destination was contained in storm drain pipe, recovered and returned to the wastewater system. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Staff contained spill, cleared blockage, determined final destination of spill, recovered spill and returned to the wastewater system. Set up vactor downstream of storm drain pipe and used hydrant upstream to flush roadway, curb gutter, storm drain box, and pipe. 	Inspected Sewer Using CCTV to Determine Cause	FOG staff contacted upstream users to discuss preventing the use of grease and wipes in the wastewater system. 	Staff cleaned and video inspected adjacent mainline segments to ensure a free-flowing system. FOG staff educated upstream users preventing the use of grease and wipes in the wastewater system. 	Mainline segments will be cleaned on a 3.5 year cleaning cycle.	09/28/2023 23:30	Staff found rags and grease in the impacted mainline segment while clearing the blockage and followed up with CCTV mainline video inspection. 	N												N													
4	4SSO11365	Active	Unincorporated County Area CSMD South/County Sanitation District CS	Los Angeles Cnty DPW	890670	1.3	Certified	Robert Swartz	Sr. CE	05-OCT-23	12-OCT-23	12-OCT-23	Category 1 Spill	1588-0523 (5324 Angeles Vista Boulevard, View Park-Windsor Hills) Unincorporated County Area 	09/27/2023 15:15	09/27/2023 15:50	09/27/2023 14:59		-		CSMD Map Sheet No. 1588 Manhole No. 523 MMS No. 8458114 Sewage was coming out of Manhole No. 523	33.99441	-118.34423	Manhole			600	Sewage was flowing from Manhole No. 523 onto the street.  A portion of the sewage spill entered a storm drain at 5302 Valley Ridge Avenue.	Y	Sewage was flowing from Manhole No. 523 onto the street.  A portion of the sewage spill entered a storm drain at 5302 Valley Ridge Avenue. The storm drain system eventually connects to Centinela Creek, which, in turn flows into Ballona Creek. The interconnected drains in this route include RDD 081, BI 1209, a city drain, an unknown drain, BI 9811, and BI 0443.	500	100	Sewage was flowing from Manhole No. 523 onto the street.  A portion of the sewage spill entered a storm drain at 5302 Valley Ridge Avenue. The storm drain system eventually connects to Centinela Creek, which, in turn flows into Ballona Creek. The interconnected drains in this route include RDD 081, BI 1209, a city drain, an unknown drain, BI 9811, and BI 0443.	100	500	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Sewage was flowing from Manhole No. 523 onto the street.  A portion of the sewage spill entered a storm drain at 5302 Valley Ridge Avenue. The storm drain system eventually connects to Centinela Creek, which, in turn flows into Ballona Creek. The interconnected drains in this route include RDD 081, BI 1209, a city drain, an unknown drain, BI 9811, and BI 0443.	N									09/27/2023 16:40	CWEA SSCSC Manhole Gauge Visual or Eyeball Method	CWEA SSCSC Manhole Gauge Visual or Eyeball Method	Debris-Rags		Gravity Mainline		Vitrified Clay		76	Beach Closure	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow		Upon arrival, manhole 523 was observed to be overflowing. Contained portion of sewage spill. Utilized hydro jet equipment to effectively clear the mainline blockage. Additionally, notified the relevant agencies about the incident.  	Adjusted Schedule/Method of Preventive Maintenance		Adjusted schedule/method of preventive maintenance. 	90 days Hydro periodic	09/27/2023 18:30	Debris-Rags	N			Centinela Creek / Ballona Creek	Other (specify below)	Creek		N/A	Other (specify below)	No impact.	N/A	0	N	N												
2	2SSO10140	Active	Hayward City CS	Hayward City	890671	1.2	Certified	Mark McGrath	Wastewater Collections System Supervisor		04-OCT-23	04-OCT-23	Monthly Category 3 Spill	Carlos Bee Sidewalk	09/12/2023 14:00	09/12/2023 14:30	09/12/2023 13:45				The spill was caused by a Vacant / demolished house lateral 4  root mass that broke free and lodged itself in our 8  mainline causing a backup.	37.66136	-122.07046	Manhole			600	The spill surfaced at a manhole in the sidewalk area and flowed into the planter strip area and down a dirt slope into the nearby property of 25036 Carlos Bee.	N						300	Other (specify below); Unpaved Surface	planter strip and dirt area of the nearby vacant property	The spill surfaced at a manhole in the sidewalk area and flowed into the planter strip area and down a dirt slope into the nearby property of 25036 Carlos Bee.	Y	37.66147	-122.07082							09/12/2023 15:45	In house spill estimation chart created with the assistance of our nearby agency (USD)	The estimation was based on the amount visually witnessed upon arrival and the crew was on site when the spill ended which was prior to their cleanup activities.	Root Intrusion		Gravity Mainline		Vitrified Clay		65	damp dirt	N	Cleaned Up (specify below); Contained All or Portion of Spill		The collections crew responded and broke the stoppage.  They washed down and vacuumed up the sidewalk area, and then they raked shoveled and bagged any solids and/or wet or affected dirt areas.	Added Sewer to Preventive Maintenance Program; Plan Rehabilitation or Replacement of Sewer		The pipeline has been added to a HFA list, setup for a short pipe line replacement in the imminent future of the area with the lateral connection and included in our next CIP replacement program to increase pipe size.		09/14/2023 08:00	We CCTV'd the city main line and determined that 4' down stream the nearby vacant and now demolished house had a 4  lateral line still connected that had a root mass within the lateral that broke free and made its way down into our 8  main line, plugged our main line and cause our spill		N/A	09/14/2023 12:30														N/A	The pipeline has been added to a HFA list, setup for a pipe line replacement in the imminent future of the area with the lateral connection and included in our next CIP replacement program to increase pipe size.	Added to the HFA list and also setting up for a short pipeline replacement in the affected area.	Added to our next CIP for a pipeline size increase	The line has been CCTV'd, added to a replacement list - currently awaiting a PO to move forward with the replacement.	Added to the next CIP for pipeline upsizing	ToSubjectSentSizeCategories Hui Nie-XiaoCarlos Bee Pipe ReplacementWed 9/272 MB	N/A	N/A	
4	4SSO10431	Active	Santa Monica City CS	Santa Monica City	890680	1.2	Certified	Ralph Valencia	Water/Wastewater Administrator		05-OCT-23	05-OCT-23	Monthly Category 3 Spill	423 HILL STREET	10/04/2023 09:17	10/04/2023 09:35	10/04/2023 09:00				Overflow from subunit dwelling in apartment complext. Sewage discharged from toliet and flowed through unit and into garage and entered and contained into sump. 	34.00337	-118.47982	Other (specify below)	Backup from residental bathroom located in garage. 		100	DIscharge contained on property. 	N	Spill contained in sump pit located in garage					100	Paved Surface		Spill contained in sump pit located in garage										10/04/2023 10:45	Approximently 0.5-1  of the floor of the unit is inundated. 	Visual 	Debris from Lateral; Debris-Rags; Fats, Oil and Grease (FOG)		Upper Lateral		Polyvinyl Chloride (PVC)		20	No impact, contained on property. Private contract will do the cleanup.	N	Other Enforcement Agency Notified; Property Owner Notified; Restored Flow		City wastewater crews hydrojetted and camera'ed the main lines. 	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Increase PM in on this line 		10/04/2023 12:30	On October 4th 2023,  9:17AM CSM was notified there was a backup at 423 Hill Street at a 7 unit apartment complex.  The toilet in the subunit dwelling was backing up. Wastewater crews were onsite by 9:35AM and met the building manager where he stated he has had a backup since yesterday night  (10/3). Building manager has been trying to break the blockage with his drain snake. City Crews hydrojettted mainline s13-533 to 13-529 and observed rags, grease, and solid matter. The overflow in the unit subsided. Any discharge from the unit flowed into a sump pit in the garage. All discharge was contained on property and a private contactor was hired to provide the cleanup. 		NA	10/04/2023 12:42														NA	NA	PM scheduled for every 6 months or less. 	NA	NA	NA	PM 	NA	NA	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	890681	1.1	Certified	Ameal McLaurin	Sewer Supervisor 2		04-OCT-23	04-OCT-23	Monthly Category 3 Spill	1901 Woodhaven Way, Oakland Ca	09/25/2023 07:33	09/25/2023 09:00	09/23/2023 09:00				Sewage was seeping through the ground under a concrete step and flowing onto paved concrete right side yard.	37.8414	-122.2033	Gravity Mainline	Sewage was seeping through the ground under a concrete step and flowing onto paved concrete right side yard.		136	Sewage was seeping through the ground under a concrete step and flowing onto paved concrete right side yard.	N						0	Paved Surface	Flowing onto paved concrete right side yard.	Flowing onto paved concrete right side yard.										09/25/2023 10:43	Concrete Pathway: 20'L x 3'W x .04'D x 7.48-Gal = 18 Gallons Outside Gym: 15'L x 7'W x .01'D x 7.48-Gal = 8 Gallons Outside by BBQ place: 37'L x 3'W x .02'D x 7.48-Gal = 17 Gallons Front yard most wet spot: 73'L x 4'W x .02'D x 7.48-Gal =44 Gallons Front yard less wet spot: 50'L x 13' x .01'D x 7.48-Gal = 49 Gallons Total spill: 18 + 8 + 17 + 44 + 49 =136 Gallons	Start time was based on witness account, the property owner. End time was based when the responding crew restored the flow.	Collection System Maintenance Failure (specify below)	Collapsed gravity mainline.	Gravity Mainline		Vitrified Clay		134	Sewage was seeping through the ground under a concrete step and flowing onto paved concrete right side yard. Property owner was provided with a claim packet to have a Restoration company to clean, recover, and mitigate the affected spill area.	N	Property Owner Notified; Restored Flow		Bypass system was installed in place to avoid any further spills, rehabilitation of facility has been planned.	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		Bypass system was installed in place to avoid any further spills, rehabilitation of facility has been planned.		10/04/2023 13:37	CCTV inspection has been completed, bypass system was installed in place to avoid any further spills, rehabilitation of facility has been planned.		N/A	10/03/2023 20:00														N/A	Bypass system was installed in place to avoid any further spills, rehabilitation of facility has been planned.	N/A	Bypass system was installed in place to avoid any further spills, rehabilitation of facility has been planned.	CCTV inspection has been completed, bypass system was installed in place to avoid any further spills, rehabilitation of facility has been planned.	Rehabilitation of facility has been planned.	CCTV report # 1463851, Bypass WO # 1465648.	CCTV inspection has been completed, bypass system was installed in place to avoid any further spills, rehabilitation of facility has been planned.	N/A	
5S	5SSO10895	Active	City Of Jackson CS	Jackson City	890687	1.1	Certified	Bree Wilder	PW superintendent 		05-OCT-23	05-OCT-23	Monthly Category 3 Spill	Pitt Street/Bright Avenue Cleanout	09/21/2023 11:35	09/21/2023 11:56	09/21/2023 10:34				Spill Cleanout located in dirt with an affected area of 30 SF and then travelled onto pavement from cleanout location at 516 Pitt St. to 415 Pitt St.  approximate length in pavement along Pitt St. is 260 LF with an average width of 5 feet = 1300 SF total on pavement.	38.35	-120.77	Gravity Mainline; Lateral Clean Out (Public)			184	Spill Cleanout located in dirt with an affected area of 30 SF and then travelled onto pavement from cleanout location at 516 Pitt St. to 415 Pitt St.  approximate length in pavement along Pitt St. is 260 LF with an average width of 5 feet = 1300 SF total on pavement.	N						92	Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		Spill Cleanout located in dirt with an affected area of 30 SF and then travelled onto pavement from cleanout location at 516 Pitt St. to 415 Pitt St.  approximate length in pavement along Pitt St. is 260 LF with an average width of 5 feet = 1300 SF total on pavement.	Y	38.35	-120.77	38.349824	-120.770365					09/21/2023 12:04	Upstream Connection method utilizing actual usage averages from water billing documentation.  See attached.	Resident Ross Butler noticed spill at 11:34am and called City at 11:35am.  Spill footprint had traveled approx. 260 LF.  Based on this distance of travel and the fact that this is a fairly well traveled roadway and would be reported fairly quickly, estimate of one hour prior to actual reporting time seems adequate if not over estimated.  End time is actual due to freeing of blockage by city crew and return to normal contained flow.	Debris-General; Root Intrusion		Gravity Mainline		Polyvinyl Chloride (PVC)		25	Total area of spill 1330 SF.  (1300 SF pavement/30 SF dirt)  No adverse impact to Private/Public property, waterways or drainage systems.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow		Waddles & blankets layed down at spill point upon arrival.  Mechanical rodding commenced immediately to free obstruction. used vacuum truck to was down all areas of affected pavement and reclaimed the rinse water with vacuum.  Collection disposed of at Sweet Pea dump site. Bagged all sewage soaked dirt/leaves/debris and discarded in bin at City Wastewater Treatment Plant.  	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Re CCTV line and discovered grease build up further down line.  Rodded 130 LF beyond clog location to remove grease and flushed line with hose from fire hydrant for 15 minutes.  Added this section of sewer line to Quarterly Sanitary Sewer Maintenance Program (SSMP)		09/27/2023 14:30	Medium root buildup at pipe joint which collected debris/paper and caused backup.  possible grease buildup at location as well due to excessive grease found in line further downstream.		None	09/27/2023 14:30														N/A	Added this section of sewer line to Quarterly Sanitary Sewer Maintenance Program (SSMP) Cleaning and CCTV	Added this section of sewer line to Quarterly Sanitary Sewer Maintenance Program (SSMP) Cleaning and CCTV	Not at this time.	Inspected	Not at this time	Added this section of sewer line to Quarterly Sanitary Sewer Maintenance Program (SSMP) Cleaning and CCTV	None	None	
6B	6SSO11137	Active	City Of Palmdale CS	Palmdale City	890701	1.2	Certified	Richard Saenz	Collection System Superintendent		05-OCT-23	05-OCT-23	Category 2 Spill	38202 Delacour Dr	10/02/2023 15:58	10/02/2023 16:13	09/27/2023 08:00	10/02/2023 17:00	23-6280		Spill occurred at manhole 1942A-0027(corner of Delacour Dr & Taintor Rd), it went 3 feet on paved surface to the curb and gutter directly to the south of the manhole. It traveled down the gutter approximately 700 feet towards Ave Q-10. No evidence of a spill was visible on Ave Q-10. Three sandbag dams were set up on Delacour Dr with the last one being just south of Ave Q-10. Contaminated water signs and cones were placed in the affected areas. With spill contained two combo units were on site and began the relief process. After numerous attempts it was decided to bypass the effected manhole and upon emptying the manhole a pipe plug was seen in the mainline. A confined space entry was performed to remove the pipe plug and flow was restored. Clean up efforts began with the entire effected area being washed down to the gutter and down Delacour Dr to Ave Q-10 where a combo unit was set up a vacuuming. The area was then sprayed down with disinfectant and cones and signs were picked up.	34.5763	-118.12751	Manhole			3420	Photos show initial evaluation, effected area and containment. Crews on site and relief process being done, effected manhole, pipe plug in mainline, clean up efforts and restored area the next day.	N						100	Paved Surface; Street/Curb and Gutter (2 3)		Spill occurred from a manhole and went on pavement to the curb and gutter 3 feet away. It traveled down the gutter approximately 700 feet to the north and stopped 15 feet south of Ave Q-10	Y	34.57631	-118.1275	34.57776	-118.12636					10/02/2023 17:17	Spill was estimated using the Upstream Connection Method. The affected manhole has a new development that just got connected and has four EDU's connected. With the information from the complainant saying it had been like that for about five days and the average of 171 gallons per day.  With the estimation of 3420 gallons spilled	Estimated daily usage per EDU is 180 gallons. While on site at times the affected manhole was dry leading us to lower the usage to 171 gallons. The complainant could only confirm it has been spilling for about five days. Calculations were made accordingly.	Other (specify below)	Pipe plug	Manhole		Vitrified Clay		50	Spill occurred from a manhole and flowed down the gutter. Ending in the gutter line before the next cross street. No evidence of water was observed past this point. Area was cleaned and disinfected leaving no evidence that a spill occurred.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Spill was responded to rapidly from the time of notification. Two city combo units with with four employees and two pickup trucks with a superintendent and lead person were on site. After confirming a spill 3 sandbag dams were set up for containment and signage was placed in the effected area. Combo units worked to relieve the spill and other personnel documented the situation. After obstruction was removed city staff washed down the entire affected area and collected all runoff with a combo unit being set up at the end of the spill area. Disinfectant was sprayed over the entire affected area and documentation was reviewed.	Other (specify below)	Spoke with inspection staff to track and monitor new development and connection points to CIty sewer that could possibly be affected due to obstructions(pipe plugs). Developing a formal way of notifications to inform sewer staff of new connections.	Spoke with inspection staff to track and monitor new development and connection points to CIty sewer that could possibly be affected due to obstructions(pipe plugs). Developing a formal way of notifications to inform sewer staff of new connections.	Scheduling meeting with inspection staff on a notification process	10/02/2023 23:13	Spill occurred due to a pipe plug being overlooked after a new development connected to the City sewer. 	N												N													
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	890705	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2		06-OCT-23	06-OCT-23	Monthly Category 3 Spill	1000 Oak Street, Oakland Ca	10/04/2023 12:21	10/04/2023 12:55	10/04/2023 12:15				Basement flooded through the floor drains inside the building.	37.79813	-122.26456	Inside Building or Structure			135	Basement flooded through the floor drains inside the building.	N						135	Building or Structure		Basement flooded through the floor drains inside the building.										10/04/2023 17:00	Calculated Volumes:  Bathroom Toilet Area: 14'L x 7'W x .02'D x 7.48-Gal = 15 gallons Bathroom Sinks Area: 14'L x 10'W x .02'D x 7.48-Gal = 21 gallons Bathroom Hallway #1: 16'L x 4'W x .02'D x 7.48-Gal = 10 gallons Wood Shop: 7'L x 7'W x .02'D x 7.48-Gal = 7 gallons Wood Shop triangle shape: 6'L x 6'W x .02D x 7.48-Gal/2 = 3 gallons Electric Room: 16'L x 8'W x .02'D x 7.48-Gal =19 gallons Hallway #2 14'L x 5'Dx x .02'D x 7.48-Gal = 10 gallons Drain spot: 2'L x 2'W x .02D x 7.48-Gal = 1 gallon Hallway #3: 12'L x 5'W x .02'D x 7.48-Gal =9 gallons Hallway #4: 15'L x 7'D x .02' D x 7.48-Gal = 9 gallons Red Floor Electric Room: 15'L x 7'W .04'D x 7.48-Gal = 31 gallons Total Spill: 15+21+10+7+3+19+10+1+9+9+31 = 135 Gallons  	Methodology was based on the employee's eyewitness account when the water first entered the building.	Pump Station Failure - Controls		Pump Station - Controls		Vitrified Clay		15	Basement flooded through the floor drains inside the building.	N	Other (specify below); Property Owner Notified; Restored Flow	Personnel from the building cleaned and returned the sewage to the sewer system.	Vacuum trucks responded and vacuumed the wet well to bypass the pump until10/5/23 9:00 AM, the time when the Pump station was fixed by Shape Incorporated personnel.	Repaired Facilities or Replaced Defect		Pump Station has been repaired.		10/05/2023 09:00	Lift Station controls failed. The controls were fixed by Shape Incorporated technician, Mark Buckmann (925) 399-9829		N/A	10/05/2023 09:00														N/A	Pump Station has been repaired. The pump station is under weekly Check/Maintenance Program.	Pump Station has been repaired. The pump station is under weekly Check/Maintenance Program.	N/A	Pump Station has been repaired.	N/A	Pump Station has been repaired. The pump station is under weekly Check/Maintenance Program. 	Lift Station controls failed. The controls were fixed by Shape Incorporated technician, Mark Buckmann (925) 399-9829	N/A	
5S	5SSO10958	Active	Grass Valley City CS	Grass Valley City	890716	1.2	Certified	Bjorn P Jones	City Engineer		16-OCT-23	16-OCT-23	Monthly Category 3 Spill	421 French St	10/04/2023 10:40	10/04/2023 10:45	10/02/2023 17:00				Manhole wall was damaged from contractor/paving	39.21906	-121.06106	Gravity Mainline		drainage ditch	74	compromised manhole wall allowed seepage into drainage ditch behind houses	Y	Storm drain leading to ditch behind houses.	10				74	Drainage Conveyance System; Unpaved Surface		compromised manhole wall allowed seepage into drainage ditch behind houses	Y	39.21906	-121.06106							10/04/2023 15:30	Visual observation of affected spill area	Contractor was paving the street on 10/2/23. Damage to manhole is assumed to have occurred at that time.	Damage by Others Not Related to Collection System Construction/Maintenance		Manhole		Other (specify below)	Brick	100	compromised manhole wall allowed seepage into drainage ditch behind houses.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Placed sandbags to block damaged area of manhole.  Vacuumed and flushed ditch and drain line.	Other (specify below)	Contractor repair to damaged manhole	City should inspect all work performed by contractors.		10/04/2023 18:00	Contractor was paving the street on 10/2/23. Damage to manhole is assumed to have occurred at that time.		NA	10/04/2023 10:58														NA	City should inspect all work performed by contractors.	NA	NA	Contractor repair to damaged manhole.	NA	NA	NA	NA	
5S	5SSO10958	Active	Grass Valley City CS	Grass Valley City	890717	1.2	Certified	Bjorn P Jones	City Engineer		16-OCT-23	16-OCT-23	Monthly Category 3 Spill	435 French St	10/02/2023 19:00	10/02/2023 19:20	10/02/2023 15:00				Manhole and basement of house	39.21906	-121.06106	Inside Building or Structure; Manhole			210	Paved street surface and basement of house.	N		0				0	Building or Structure; Street/Curb and Gutter (2 3)		Paved street and basement of house.	Y	39.21906	-121.06106							10/02/2023 22:30	Visual observation of affected areas and active SSO flow volume.	Visual observation and estimation.	Debris from Construction		Manhole		Other (specify below)	Brick	100	Paved street and basement of house.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow	3rd party agency handled basement remediation	Manhole was paved over by contractor. Identified approximate blockage location and jetted from 1st unpaved manhole. Disinfected pavement using 1% bleach solution.	Other (specify below)	City should inspect all work performed by contractors.	City should inspect all work performed by contractors.		10/02/2023 23:00	The cause could not be determined until new pavement was removed from manhole lids, several days after paving began. It appears that the blockage was due to pieces of the manhole wall that broke off during the paving project.		NA	10/04/2023 11:40														NA	City should inspect all work performed by contractors.	NA	NA	NA	NA	NA	NA	NA	
2	2SSO10105	Active	Central Contra Costa Sd CS	Central Contra Costa Sanitary District	890719	1.1	Certified	Paul Seitz	Collection System Division Manager		26-OCT-23	26-OCT-23	Monthly Category 3 Spill	3099 N Main St Walnut Creek	10/02/2023 13:50	10/02/2023 14:10	10/02/2023 13:31				The spill discharged from the batroom toilet of 3099 N. Main St	37.93106	122.06121	Inside Building or Structure			69	The spill discharged from the toilet in the bathroom, spread into the office and into the mechanics shop and just outside of the building.	N						69	Building or Structure; Paved Surface		The spill discharged from the toilet in the bathroom, spread into the office and into the mechanics shop and just outside of the building.										10/02/2023 14:40	We estimated the discharge rate to be 1 gallon per minute X 69 minutes to equal 69 gallons. 	Our internal overflow chart that shows pictures of different spill rates. 	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		74	The spill caused minor property damage at the address. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	A restoration company was hired to clean-up and return spill to our system along with restoring the property of any damage that occured. 	Majority of spill self-contained inside of building at the mechanics area. and just out side on a paved surface. We vac'd up portion of spill on the paved surface. A restoration company was hired to clean-up inside of building.	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Shared info with our Engineering Department to add to a future Capitol project.	Based on our review we are giving this line to our Engineering team to expedite it's replacement.		10/02/2023 15:30	We used CCTV to inspect our main to help determine spill cause. 		N/A	10/03/2023 07:45														N/A	We will install a point repair at a void in the pipe and give to our Engineering team for future replacement.	Based on our review we feel it is already on an aggressive enough cleaning schedule. 	We will install a point repair at a hole found in the pipe. We will also share the CCTV information with our Engineering team to add to a future capitol project.	Inspected using CCTV on 10/3/23	Will be reported to our Engineering team on 10/11/23 (our monthly Engineering Coordination meeting)	Noted in our bi-weekly Operations meeting and monthly Engineering Coordination meeting.	Based on review of our response, no modifications are required.	N/A	
5S	5SSO11433	Active	City of Stockton MUD CS	Stockton City MUD	890737	1.1	Certified	Dagmara Saini	Program Manager III		11-APR-24	11-APR-24	Monthly Category 3 Spill	622 N Edison St	09/05/2023 10:09	09/05/2023 11:30	09/05/2023 10:30				37.95741-121.30169 In Street in front of address	37.95741	-121.30169	Lateral Clean Out (Private); Manhole			53	Photo shows spill coming from CO in front of address and sanitary MH also in front of address	N						53	Street/Curb and Gutter (2 3)		Contained I Gutter In Front Of 622 N Edison St 37.95741-121.30169										09/05/2023 12:00	Spill volume was calculated by measuring the affected area of spill , and transferred those measurement to the spill formula worksheet	Spill volume was calculated by measuring the affected area of spill , and transferred those measurement to the spill formula worksheet	Debris-General		Gravity Mainline		Vitrified Clay		107	No major impact observed 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		contained in gutter around the address ,gutter and street area cleaned up by responding crews.	Inspected Sewer Using CCTV to Determine Cause		CCTV main line to confirm the cause of the main line blockage add to PM if necessary. 		09/05/2023 13:00	CCTV performed 9/26/2023 grease deposits found.  Follow up clean removed attached deposits.  		NA	11/21/2023 15:07														NA	NA	NA	NA	Main Line has been inspected 	NA	NA	Main Line blockage was cleared and spill cleanup efforts started immediately  	NA	
8	8SSO10565	Active	Corona City CS	Corona City DWP	890751	1.2	Certified	Aftab Hussain	Maintenance Manager		30-OCT-23	30-OCT-23	Monthly Category 3 Spill	20289 Bedford Canyon Dr.	10/06/2023 07:30	10/06/2023 07:45	10/06/2023 07:20				Photos and GPS coordinates are attached. One spill appearance point on Bedford Canyon Dr.	33.824047	-117.524109	Force Main			620	Spill from force main to approximately 150 feet down Bedford Canyon Dr. 	N						620	Street/Curb and Gutter (2 3)		Spill appearance point from the force main on Bedford Canyon Drive and Georgetown Drive.	Y	33.824492	-117.523932	33.824291	-117.523997	33.824295	-117.524007	33.824047	-117.524109	10/06/2023 12:30	Based on an estimation of 2 gallons per minute and the collection of it in the 500 gallons tank of the vacuum truck. Volume recovered determined by multiplying the minutes of spillage by the flow. 	Data obtained according to initial notification to the First Responder until spill was contained and no longer exiting the system.	Pipe Structural Problem/Failure - Controls; Pipe Structural Problem/Failure - Installation		Force Main; Other (specify below)	Force main coupler	Other (specify below)	HDPE	5	Spill originated in the force main on Bedford Canyon Road and impacted approximately 150 feet of roadway. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Sandbags and vacuum equipment were used to contain and recover the spill. All impacted area was cleaned and vacuumed after repair was conducted.	Other (specify below)	Repaired force main.	Line was drained in order to repair of the force main. All flow was captured by vacuum trucks. The forced main waterline was repaired. So, a new section of pipe was installed and a recurrence at the same location will not happen.		10/07/2023 07:30	No ongoing investigation efforts. Force main was repaired.		No ongoing investigation efforts. Force main was repaired.	10/07/2023 07:30														Not applicable.	Not applicable.	Not applicable.	Not applicable.	Force main pipe repaired.	Not applicable.	Photos of repairs are attached. 	The forced main waterline was repaired. A new section of pipe was installed and a recurrence at the same location will not happen.	No ongoing investigation efforts. Force main was repaired.	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	890758	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		01-APR-24	01-APR-24	Monthly Category 3 Spill	111 South Holmby Park Lane	10/10/2023 16:29	10/10/2023 17:45	10/10/2023 16:29				The initial crew arrived at 5:45 P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.079684	-118.427642	Manhole	None.		150	None.	N	None.					0	Other (specify below)	The entire back up amount soaked into the ground.	34.079684     118.427642	Y	34.079684	-118.427642							10/10/2023 19:57	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.	Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening0.125inches Flowrate per pickole/opening (gpm)1gpm # of pickholes/openings1 Total flowrate (gpm)1gpm Duration of spill (minutes)208minutes Total flow (gallons)150gallons 	Debris-Rags		Gravity Mainline		Vitrified Clay		96	None At This Time.	N	Other (specify below); Restored Flow	The entire back up amount soaked into the ground.	On Tuesday, October 10, 2023 at 4:29 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 111 South Holmby Park Lane (TG 592-C7). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 7:57 PM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.  It was estimated that approximately 150 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.  	Inspected Sewer Using CCTV to Determine Cause		On Tuesday, October 10, 2023 at 4:29 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 111 South Holmby Park Lane (TG 592-C7). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 7:57 PM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.  It was estimated that approximately 150 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.    Sewer Repair To The Wye Connection At 65FEeet From The Upstream Maintenance Hole.		10/10/2023 19:57	On Tuesday, October 10, 2023 at 4:29 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 111 South Holmby Park Lane (TG 592-C7). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 7:57 PM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.  It was estimated that approximately 150 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.  		None At This Time.	10/10/2023 19:57														None At This Time.	Sewer Repair To The Wye Connection At 65FEeet From The Upstream Maintenance Hole.	None At This Time.	None At This Time.	Sewer Repair To The Wye Connection At 65FEeet From The Upstream Maintenance Hole.	None At This Time.	Sewer Repair To The Wye Connection At 65FEeet From The Upstream Maintenance Hole.	On Tuesday, October 10, 2023 at 4:29 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 111 South Holmby Park Lane (TG 592-C7). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 7:57 PM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.  It was estimated that approximately 150 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.    Sewer Repair To The Wye Connection At 65FEeet From The Upstream Maintenance Hole.	None At This Time.	
5S	5SSO10901	Active	City of Sacramento Utilities CS	Sacramento City	890763	1.2	Certified	Kevin Guerra	Superintendent		30-OCT-23	30-OCT-23	Monthly Category 3 Spill	2175 Acoma Street	09/21/2023 05:25	09/21/2023 06:25	09/21/2023 05:00				The spill came from a manhole where wastewater forced mains tied into the gravity fed collections system.	38.60492	-121.46684	Manhole			452	The spill left the manhole and traveled West to the gutter pan, and then South where it entered into a drain inlet.	Y	The spill entered a drain inlet, then travelled  in piping going to a ditch nearby. the spill never entered the ditch.	452				452	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		The spill ended in the drainage collection system piping that was headed to Glove Ave ditch. 	Y	38.6056	-121.467							09/21/2023 07:12	We estimated the volume by measuring the area's that the spill was trapped in on the ground. And then added the totals to the amount we calculated to be trapped and collected from the drainage collection system.  All of the measurements and information we collected was entered into our Spill Calculator to get the totals.	We knew we had an endpoint and the spill was trapped in the drainage collection system. This is why we felt comfortable using area measurements and volume in piping calculations to get our total.	Collection System Maintenance Failure (specify below); Pipe Structural Problem/Failure - Installation; Vandalism (specify below)	This main is on a six month cycle for cleaning and was late by four months when it had the spill.	Gravity Mainline		Vitrified Clay		113	The spill was reported soon after it had started, and near the top the hydraulic system. No service was disrupted and there was no impact to the surrounding area.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Once on site our responder took pictures and called for more staff with equipment to head to the site.  The spill was pooling near a driveway and had debris in the gutter pan, so the responder went downstream to relieve the plug. Once the system was flowing, we started looking for the endpoint and found that it had not made it to the ditch, we started tracing it back towards the drain inlet.  We washed down the area, and flushed water to our drainage staff that was onsite to collect and return the spill back to the sewer system.  	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		We cleaned, and inspected the sewer main and the mains in the surrounding area. We were four months behind in our scheduled cleaning, We decided to adjust the schedule to three months and put it on a cycled work order.		09/21/2023 10:15	We noticed that there was wood and debris that came from the plugged main when it was relieved. During our inspection we found the main to have areas of no grade (Sags) where we believe the materials had built up. There also a homeless encampment nearby but we were unable to prove the wood pieces had come from it.  We our investigation ended with we had been late in cleaning the main and with the defects we should increase the cleaning cycle.		The investigation has ended.	09/28/2023 12:00														N/A	Increased cleaning cycle and put on cycled work order'  	Moved from a six month to a three month.	Not at this time	We inspected with CCTV and identified defects, not up for repair at this time.	N/A	We have this modification implemented in our City Works System.	N/A	The investigation has ended.	
8	8SSO10566	Active	Costa Mesa SD CS	Costa Mesa Sanitary District	890765	1.2	Certified	Scott Carroll	General Manager	11-OCT-23	11-OCT-23	11-OCT-23	Category 2 Spill	South Coast Plaza Shopping Center	10/02/2023 19:16	10/02/2023 20:00	10/02/2023 19:16	10/02/2023 22:25	23-6286		Spill occurred from a private manhole located on the east side of Bloomingdale's loading dock area	33.688806	-117.887364	Manhole			17700	The spill entered a private storm water pump station that's owned and maintained by South Coast Plaza.  The pumps were turned off before wastewater entered the facility and they remained off for more than 24 hours after the spill stopped.	Y	The spill entered a private storm water pump station that's owned and maintained by South Coast Plaza.  The pumps were turned off before wastewater entered the facility and they remained off for more than 24 hours after the spill stopped. All the wastewater was captured from the pump station wet well.	17700	0			17700	Drainage Conveyance System	Spilled into a private storm water pump station.	Sewage came out of a private manhole that's located in the parking lot of South Coast Plaza (SCP), on the east side of Bloomingdale's department store loading docks. A 10  pipe that's owned and maintained by SCP runs underneath Bloomingdales. 21' of the 10  pipe is maintained by CMSD.	Y	33.688806	-117.887364							10/02/2023 22:13	Using data from SCADA, calculated the gallons of wastewater that would have been pump out of the system if the SSO had not occurred. The number of times the debris tank of the combination sewer cleaning unit was filled and emptied, also helped with the calculations.	SCADA data was used to rely on the start and end time.	Fats, Oil and Grease (FOG)	There are several food service establishments at SCP that feed into the 10  pipe that's owned and maintained by SCP.	Manhole		Ductile Iron		30	The impact was minimal because sewage entered a private storm water pump station.  The pump station was turned off before the SSO occurred and the pump remained off during the duration and cleanup of the spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Returned All Spill to Sanitary Sewer System		Used clean water to wash down area that was affected by wastewater. Hire a contractor to conduct confine space entry to remove remaining sewage, disinfect and rinse wetwell of storm water pump station.	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Plan Rehabilitation or Replacement of Sewer		Cleaning 1.Clean 21� of 10� pipeline on a quarterly basis (once every three months)  FOG Control 2.Conduct an inspection of the existing SCP FSE�s ASAP. 3.Reinspect monthly until FOG generation is under control. 4.Advise the FSE�s and SCP, depending on grease interceptor responsibility, that the District and its FSE contractor must be present for the next cleaning(s). 5.Priorities: a.FSE�s tributary to the District�s SCP pump station (Asset 106331) b.FSE�s Tributary to Pipeline Asset Nos. 136136, 136137, and 136138 (Sewer located on the north side of the main mall). c.FSE tributary to all other sewer assets. 6.EEC (FOG Control Manager) and the District will work to develop an investigation plan that include, but not limited to, working with SCP to clean all sewer lines, CCTV camera to ensure that the sewers are cleaned, then conduct a follow-up CCTV inspection at an interval to determine and possible isolate violators.  Considering relining the 21 foot section of pipe.	None	10/04/2023 12:11	Heavy FOG in the system.  FSE's at SCP may not be following kitchen best management practices and/or properly operating and maintaining their grease interceptors. It's possible an FSE may have been illegally discharging FOG into the system.	Y	Heavy FOG in the system.  The last cleaning cycle at SCP was on July 28, 2023.	10/31/2023 17:00										N												Heavy FOG in the system.  The last cleaning cycle at SCP was on July 28, 2023.	
2	2SSO10139	Active	Half Moon Bay CS	Half Moon Bay City 	890767	1.2	Certified	Maziar Bozorginia	Public Works Director/City Engineer		11-OCT-23	11-OCT-23	Monthly Category 3 Spill	731 Main Street	09/01/2023 16:23	09/01/2023 16:50	09/01/2023 12:00				Blockage was on Johnston street and backup occurred into apartment on Main street. Apartment is on a grinder, every time grinder came on it spilled out of the kitchen street since the lateral line was backed up.	37.4605343	-122.4294493	Inside Building or Structure			75	Spill went to carpet on apartment floor.	N						0	Building or Structure		It came out of the kitchen sink										09/01/2023 17:03	Owner estimated based on 5 gallon bucket size, as stated when we arrived at the house there was wet carpet that had soaked up the spill	The volume was via the homeowner estimation and the size of the room	Other (specify below)	A lot of paper towels from up steam IDES hall and grease. 	Gravity Mainline		Vitrified Clay		100	Apartment rug, some drywall as well	N	Cleaned Up (specify below); Restored Flow	Contacted insurance company and restoration company to mitigate	When we gained entry to the apartment it had already stopped	Adjusted Schedule/Method of Preventive Maintenance		Likely increase the frequency on line			Insurance company is doing this		Insurance company is involved	09/01/2023 17:20														City of HMB will enforce	City of HMB will enforce	Schedule will have to be adjusted by the city if that is the route we take	Not that we are aware	n/a	n/a	n/a	n/a	Insurance company is involved	
5S	5SSO10923	Active	Deer Creek CS	El Dorado Irrigation District	890773	1.1	Certified	John Chavers	Collection System Supervisor		12-OCT-23	12-OCT-23	Monthly Category 3 Spill	DC-2023-09-13	09/10/2023 12:03	09/10/2023 12:58	09/07/2023 17:00				See Attachments	38.698963	-120.847348	Gravity Mainline			52	See attachments	Y	See Attachments	15				52	Drainage Conveyance System that discharges to surface water; Unpaved Surface		See attachments	Y	38.698963	-120.847348	38.699144	-120.847262					09/10/2023 17:13	See attachments	See attachments	Natural Disaster (specify below)	Tree fall wet soil and wind event	Gravity Mainline		Concrete		58	See attachments	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		See attachments	Repaired Facilities or Replaced Defect		See attachments		09/13/2023 15:30	See attachments		NA	09/13/2023 15:30														NA	See attachments	See attachments	Complete-see attachments	See attachments	NA-see attachments	See attachments	NA-see attachments	NA	
8	8SSO10566	Active	Costa Mesa SD CS	Costa Mesa Sanitary District	890775	1.1	Certified	Scott Carroll	General Manager		12-OCT-23	12-OCT-23	Monthly Category 3 Spill	Newport Blvd at Ford Road	10/11/2023 09:34	10/11/2023 09:45	10/11/2023 09:00				Manhole located on Newport Blvd (MH#103545) at Ford Road. Newport Blvd is adjacent to SR 55 freeway (southbound).	33.64585	-117.915126	Gravity Mainline; Manhole			310	Estimate SSO was discharging 5 gpm from manhole 	Y	SSO entered Caltrans conveyance system on the SR 55 freeway (southbound)	1810				310	Drainage Conveyance System; Paved Surface		SSO flowed onto Newport Blvd and entered into a Caltrans storm drain inlet on the other side of the street.	Y	33.64585	-117.915126							10/11/2023 10:02	Eyeball and reference sheet for estimating sewer spills from overflowing sewer manholes from the City of San Diego.  Estimated 1,810 gallons was recovered from Caltrans storm drain. Gallons include portable water for flushing storm drain and wastewater from SSO.  Potable water was calculated from water tank storage on vactor unit.	Start time is an assumption. City of Costa Mesa employees were already on the scene when CMSD arrived.  When CMSD arrived, City of Costa Mesa was vacuuming SSO. Tried making contact with city staff to obtain more information (e.g. time they received the call and time of their arrival), but to date, no one from the city has responded to CMSD's inquiry. Will update report when more information becomes available.	Fats, Oil and Grease (FOG)		Gravity Mainline; Manhole		Vitrified Clay		40	No impacts. SSO was fully recovered.	N	Cleaned Up (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		City of Costa Mesa established a dirt berm around the manhole. City was vacuuming SSO when CMSD arrived.  Two CMSD vactor trucks were used to contain, alleviate and cleanup the spill.  CMSD alleviated the blockage at the upstream manhole (MH# 103622). Cleanup consisted of potable water spraying down the street and then vacuuming water. Potable water was also used for the storm drain system.  The portable water used in the storm drain system was vacuumed as well.	Enforcement action against Fats, Oil, and Grease (FOG) source		Step up FOG enforcement at Triangle Square outdoor shopping mall where several food service establishments are located. The last time the line was cleaned was on January 20, 2023.  Operator observed light debris and light grease, which did not cause alarm to increase cleaning frequency, which once every 9 months.		10/11/2023 11:00	The spill was caused by FOG		No	10/11/2023 11:04														CMSD will notify FSE's at Triangle Square about their responsibility to manage FOG as a condition of their permit. Continued violation could result in CMSD revoking FSE's sewer permit.	May consider increasing cleaning frequency to once every 6 months.	May consider increasing cleaning frequency to once every 6 months	Does not apply	Does not apply	Does not apply	Does not apply	Costa Mesa PD dispatch contacted the wrong people about the SSO. Emailed the city a revised and correct list of CMSD employees to contact for sewer emergencies.	No	
2	2SSO10103	Active	Castro Valley Sanitary District CS	Castro Valley Sanitary District	890779	1.5	Certified	Roland P Williams	General Manager		23-AUG-24	23-AUG-24	Monthly Category 3 Spill	Manhole	09/28/2023 14:48	09/28/2023 15:00	09/28/2023 14:45				Nearby resident called in to report Manhole near Grove and Shady Springs Dr leaking sewage at the time of the call 	37.6955	-122.07387	Manhole			75	N/A	N						75	Paved Surface; Street/Curb and Gutter (2 3)		Curbside		37.6955	-122.07387							09/28/2023 15:15	Eyeball Method and Overflowing Sewer Manholes Reference Sheet	Phone Call and Caller Interview	Root Intrusion		Gravity Mainline		Vitrified Clay		50	N/A	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Bockage relieved from DS manhole using Hydrojetter and warthog nozzle. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		N/A		09/28/2023 15:15	N/A		N/A	09/29/2023 15:30														N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	
5S	5SSO10883	Active	Camanche North Shore CS	East Bay MUD (EBMUD)	890787	1.1	Certified	Roberto C Cortez	Manager of Water Supply		16-OCT-23	16-OCT-23	Monthly Category 3 Spill	Camanche North Shore Rec Area Mobile Home Park No. 2	10/09/2023 10:25	10/09/2023 10:25	09/17/2023 12:00				Sewage spill occurred through manhole on main sewer line servicing Mobile Home Park No. 2. Manhole is located under crawl space of Mobile Home Space No. 205.	38.236197	-120.944614	Manhole			724	Spilled sewage percolated into dirt area surrounding manhole. No pooling was observed. Spill was contained within the local area.	N						0	Unpaved Surface		Spilled sewage was contained within local area surrounding the manhole. The released wastewater percolated into the dirt.	Y	38.236197	-120.944614							10/09/2023 11:06	Industry standard eyeball method and measured volume method were used to estimate the spill volume.  Measured volume method was determined to be more accurate for site conditions, see attached Spill Volume Diagram and Calculation Worksheet and Spill Field Documentation. 	Impacted area was excavated to determine percolation depth for spill. Three depth measurements were recorded and averaged. A measured volume of water was released to a nearby location of the dirt ground to determine the percolation rate for the spill.    	Fats, Oil and Grease (FOG)		Gravity Mainline		Concrete		30	The spill was contained within dirt ground surrounding the manhole that discharged the wastewater back-up. There were no impacts to the environment, including a water body or drainage conveyance. 	N	Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow		The mobile home occupant was notified. Only liquid was spilled through the manhole. There was no debris or material to clean-up. Impacted dirt area surrounding the manhole was disinfected. Flow was restored once the FOG build-up was dislodged with hydrovac equipped with cutter. Main sewer line was then cctv'd, with no defects observed.  	Inspected Sewer Using CCTV to Determine Cause		EBMUD cctv'd Mobile Home Park No. 2 sewer lines, including laterals, to identify the source of the FOG. EBMUD will contact the respective mobile home occupant(s) and review how to properly dispose of FOG, in addition to what can be disposed of through the sanitary sewer collection system.  Pardee Wastewater Maintenance staff will continue to perform the scheduled inspections, cleaning, and other maintenance activities for all wastewater collection, lift stations, and treatment systems.  In June 2023, as part of its FOG Program, EBMUD hand-delivered educational outreach material on protecting the sanitary sewer system to the mobile home occupants and long-term recreational vehicle park users. The material included information on how to properly dispose of FOG, in addition to a plastic grease scraper to encourage the occupant(s) to scrap up the grease from cooking utensils and properly dispose of it in the garbage (see attached sample of outreach material). 		10/12/2023 15:00	On 10/7/23, occupant notified concessionaire, through voicemail of sewage smell around his unit. On 10/8/23, at 9:40 a.m., concessionaire notified EBMUD of reported sewage smell. EBMUD Oncall Assistant Superintendent immediately responded and inspected area where smell was reportedly coming from. No sewage spill was observed at that time. Occupant reported being away from his home since 9/16/23, last time no smell was detected.  On 10/9/23 at 10:25 a.m., EBMUD Maintenance Supervisor inspected area, including crawl space under mobile home where spill was detected. Spill was determined to be intermittent, based on wastewater-generating activities within occupied mobile homes that are serviced by impacted main sewer line. Once spill was detected, EBMUD deployed a hydrovac with cutter to dislodge obstruction. Line was cctv'd and pieces of FOG was observed floating on restored flow. The globules of FOG collected in downstream lift station and were later removed.		EBMUD cctv'd the main sewer lines servicing the mobile home park to identify the source of the FOG discharged through laterals. EBMUD will contact occupants individually to educate them on how to manage FOG appropriately.  	10/12/2023 15:00														not applicable	not applicable 	EBMUD will conduct more frequent cleaning of the main line	not applicable	not applicable	not applicable	not applicable	not applicable	EBMUD cctv'd the main sewer lines servicing the mobile home park to identify the source of the FOG discharged through laterals. EBMUD will contact occupants individually to educate them on how to manage FOG appropriately.  	
5S	5SSO11433	Active	City of Stockton MUD CS	Stockton City MUD	890796	1.7	Certified	Dagmara Saini	Program Manager III	15-OCT-23	01-MAY-24	01-MAY-24	Category 1 Spill	5958 Melones Way	10/14/2023 19:05	10/14/2023 19:20	10/14/2023 19:05	10/14/2023 22:10	23-6534	22-NOV-23	Pending	38.05044	-121.39152	Lateral Clean Out (Private); Lateral Clean Out (Public); Manhole; Pump Station			467833	Spill estimated >50k - ongoing investigation.  Cleanup measures complete. Spill volume estimation were calculated by City Engineering Division.  The methodology, assumptions, and data records are submitted in attachments tab.	Y	Pending	215135	252698	Regatta Ln Weir Box Outfall (Westlake Village Lake 2 - private) and White Slough at Spanos Park West Pump Station	467833	215135	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		Multiple Destination Points.	N									10/15/2023 05:10	Methodology for calculation is uploaded in attachments.	Methodology for calculation is uploaded in attachments.	Flow Exceeded Capacity (Separate Collection System Only); Pipe Structural Problem/Failure - Controls		Pump Station - Mechanical		Polyvinyl Chloride (PVC)		10	Water Quality Impacted.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Described in Technical Report.	Repaired Facilities or Replaced Defect		Described in Technical Report.	Described in Technical Report.	11/08/2023 14:00	Described in Technical Report.	N			White Slough	Lake; Slough	Westlake (private) and White Slough (U.S. Waterway)	Westlake (private residential lake) and White Slough (U.S. Waterway)	No impacts observed.	Other (specify below)	Public Warning Signs Posted	Environmental Control	17	N	Y	Westlake:  1. Weir box (collection system prior to discharge into receiving water) 2. Point of discharge in receiving water. 3. Upstream of point of discharge in receiving water. 4. Downstream of point of discharge in receiving water. White Slough:  1. Spanos Park West Pump Station wet well (collection system prior to discharge into receiving water) 2. Point of discharge in receiving water. 3. Upstream of point of discharge in receiving water. 4. Downstream of point of discharge in receiving water.	E.coli and Ammonia										
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	890798	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		01-APR-24	01-APR-24	Monthly Category 3 Spill	560 South Warner Avenue	10/14/2023 09:55	10/14/2023 10:34	10/14/2023 10:43				The initial crew arrived at 10:34A.M. and discovered an 10-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.070627	-118.435757	Manhole	None.		169	Photos Of Spill At 560 South Warner Avenue.	Y	Photos Of Spill At 560 South Warner Avenue.	169				169	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.										10/14/2023 10:43	Spill flowrate and volume determination based on flowout pickhole or opening 	Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening3inches Flowrate per pickole/opening (gpm)4gpm # of pickholes/openings1 Total flowrate (gpm)4gpm Duration of spill (minutes)48minutes Total flow (gallons)169gallons 	Debris-General		Gravity Mainline		Vitrified Clay		92	It was estimated that approximately 169 gallons of sewage backed out of the sewer as a result of the blockage, of that amount 69 gallons of sewage entered an adjacent City of Los Angeles owned catch basin located at 675 South Warner Avenue. The crew was able to establish containment and subsequently they returned the entire back up amount to the sanitary sewer system.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		On Saturday, October 14, 2023 at 9:55 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 560 South Warner Avenue (TG 632-B1). A CWCD crew was immediately dispatched to the incident location and determined that the 10-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 10:43 AM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.  It was estimated that approximately 169 gallons of sewage backed out of the sewer as a result of the blockage, of that amount 69 gallons of sewage entered an adjacent City of Los Angeles owned catch basin located at 675 South Warner Avenue. The crew was able to establish containment and subsequently they returned the entire back up amount to the sanitary sewer system.   	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Line The Entire Reach Of Pipeline.		10/14/2023 10:43	On Saturday, October 14, 2023 at 9:55 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 560 South Warner Avenue (TG 632-B1). A CWCD crew was immediately dispatched to the incident location and determined that the 10-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 10:43 AM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.  Line The Entire Reach Of Pipeline. There are fractures at the joints at 0', 68', 99' and 217' D/S of the U/S MH.  There are cracks at the joints at 8.6', 14.9', 15', 18', 21', 33', 48' and 87' D/S of the U/S MH.		Not At This Time.	10/14/2023 10:43														None At This Time.	Line The Entire Reach Of Pipeline. There are fractures at the joints at 0', 68', 99' and 217' D/S of the U/S MH.  There are cracks at the joints at 8.6', 14.9', 15', 18', 21', 33', 48' and 87' D/S of the U/S MH.	Pipeline Will Remain On Semi-Annual Maintenance.	Line The Entire Reach Of Pipeline. There are fractures at the joints at 0', 68', 99' and 217' D/S of the U/S MH.  There are cracks at the joints at 8.6', 14.9', 15', 18', 21', 33', 48' and 87' D/S of the U/S MH.	Line The Entire Reach Of Pipeline. There are fractures at the joints at 0', 68', 99' and 217' D/S of the U/S MH.  There are cracks at the joints at 8.6', 14.9', 15', 18', 21', 33', 48' and 87' D/S of the U/S MH.	None At This Time.	Line The Entire Reach Of Pipeline. There are fractures at the joints at 0', 68', 99' and 217' D/S of the U/S MH.  There are cracks at the joints at 8.6', 14.9', 15', 18', 21', 33', 48' and 87' D/S of the U/S MH.	Line The Entire Reach Of Pipeline. There are fractures at the joints at 0', 68', 99' and 217' D/S of the U/S MH.  There are cracks at the joints at 8.6', 14.9', 15', 18', 21', 33', 48' and 87' D/S of the U/S MH.	Not At This Time.	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	890803	1.1	Certified	Kent Vian	Asst. Deputy Director		29-NOV-23	29-NOV-23	Monthly Category 3 Spill	NOT-40201021469 6748 HIGH COUNTRY CT.	10/15/2023 13:21	10/15/2023 13:45	10/15/2023 13:18				SPILL ORIGINATED FROM TWO LOCATION A CLEANOUT & MANHOLE BOTH IN FRONT OF 6748 HIGH COUNTRY CT.  (GPS COORDINATES 31.80750 -117.05774)	32.8075	-117.05774	Inside Building or Structure; Manhole	N/A	N/A	114	SPILL BOUNDARIES ARE THE SIDE WALK CURB & CUTTER AND STORM DRAIN IN FRONT OF 6748 HIGH COUNTRY CT.	Y	STORM DRAIN.	0				35	Drainage Conveyance System; Street/Curb and Gutter (2 3)	N/A	SPILL APPERANCE POINT BOTH IN FRONT OF 6748 HIGH COUNTRY CT, FROM CLEAN OUT AND MANHOLE .	Y	32.8075	-117.05774							10/30/2023 09:52	VISUAL CALCULATED METHOD	SPILL TIME ESTIMATION IS WHEN CONSUMER AT 6748 HIGH COUNTRY CT GO'S OUTSIDE AND SEE  SEWER SPILLING FROM CLEAN-OUT & MMANHOLE.	Fats, Oil and Grease (FOG)		Gravity Mainline; Lower Lateral		Vitrified Clay		53	SPILL INPACT TO SIDEWALK CURB & CUTTER  STROM DRAIN.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	SPILL RESPONDED RELIVEVED BLOCKAGE IN GRAVITY MAIN TOOK PICTURES WASH UP AREA AND CCTV MAINS	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause	N/A	SPILL CORRECTION WILL BE CHANGING THE CLEANING FREQUENCY TO IDENTIFY THE PROBLEM IN THE COLLECTION SYSTEM.		10/16/2023 09:57	GREASE WAS THE FINDIGS FOR SEWER SPILL.		 ONGOING EFFORTS WILL CONTINUE TO DETERMINE SEWER SPILL	10/16/2023 11:09														N/A	N/A	NEED TO CHANGE CLEANING FREQUENCY	N/A	N./A	N/A	N/A	N/A	 ONGOING EFFORTS WILL CONTINUE TO DETERMINE SEWER SPILL	
5S	5SSO10923	Active	Deer Creek CS	El Dorado Irrigation District	890814	1.1	Certified	John Chavers	Collection System Supervisor		16-OCT-23	16-OCT-23	Monthly Category 3 Spill	DC-2023-10-14	10/11/2023 13:33	10/11/2023 13:53	10/11/2023 13:00				See Attachment	38.66758	-120.99725	Manhole			240	See attachment	Y	Unnamed dry drainage conveyance between properties on Millbrae and Kimberly Roads	240				240	Drainage Conveyance System		See attachment	Y	38.66758	-120.99725							10/11/2023 14:18	See attachment	See attachment	Root Intrusion		Manhole		Concrete		60	See attachment	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		See attachment	Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect		See attachment		10/11/2023 19:30	See attachment		See attachment	10/27/2023 15:30														NA	See attachment	See attachment	See attachment	See attachment	See attachment	See attachment	See Attachment	See attachment	
6A	6SSO11120	Active	Truckee Sanitary District CS	Truckee SD	890815	1.2	Amended	Eric Sundale	Superintendent	16-OCT-23	25-OCT-23	25-OCT-23	Category 1 Spill	Truckee High School 	10/11/2023 14:00	10/11/2023 14:18	09/12/2023 08:00	10/11/2023 16:38	23-6467	16-NOV-23	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	39.32376	-120.21265	Manhole		Two manholes 25 feet apart.	56560	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons. See Sewer Service Request (SSR) and email communications attachments. Photos will be included when organized and labeled.	Y	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons. See Sewer Service Request (SSR) and email communications attachments. Photos will be included when organized and labeled.	2000	0	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons. See Sewer Service Request (SSR) and email communications attachments. Photos will be included when organized and labeled.	56560	2000	Drainage Conveyance System that discharges to surface water; Surface Water; Unpaved Surface		Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	Y	39.32376	-120.21265							10/11/2023 15:21	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	Damage by Others Not Related to Collection System Construction/Maintenance		Gravity Mainline		Polyvinyl Chloride (PVC)		50	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	10/11/2023 22:30	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	Y	Pursuing potential damages from contractor or School District. Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	12/27/2023 16:36	No official name of Retention Basin next to spill site.	Other (specify below)	Retention basin.	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	None. No observable aquatic life. No notice from Nevada County Public Health on this topic.	Other (specify below)	No public access impact. Fenced Caltrans area.	NA	0	N	Y	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.									Pursuing potential damages from contractor or School District. Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	
6A	6SSO11120	Historical	Truckee Sanitary District CS	Truckee SD	890815	1.2	Amended	Eric Sundale	Superintendent	16-OCT-23	25-OCT-23	25-OCT-23	Category 1 Spill	Truckee High School 	10/11/2023 14:00	10/11/2023 14:18	09/12/2023 08:00	10/11/2023 16:38	23-6467	16-NOV-23	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	39.32376	-120.21265	Manhole		Two manholes 25 feet apart.	56560	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons. See Sewer Service Request (SSR) and email communications attachments. Photos will be included when organized and labeled.	Y	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons. See Sewer Service Request (SSR) and email communications attachments. Photos will be included when organized and labeled.	2000	0	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons. See Sewer Service Request (SSR) and email communications attachments. Photos will be included when organized and labeled.	56560	2000	Drainage Conveyance System that discharges to surface water; Surface Water; Unpaved Surface		Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	Y	39.32376	-120.21265							10/11/2023 15:21	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	Damage by Others Not Related to Collection System Construction/Maintenance		Gravity Mainline		Polyvinyl Chloride (PVC)		50	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	10/11/2023 22:30	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	Y	Pursuing potential damages from contractor or School District. Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	12/27/2023 16:36	No official name of Retention Basin next to spill site.	Other (specify below)	Retention basin.	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	None. No observable aquatic life. No notice from Nevada County Public Health on this topic.	Other (specify below)	No public access impact. Fenced Caltrans area.	NA	0	N	Y	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.									Pursuing potential damages from contractor or School District. Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	
5R	5SSO10845	Active	Red Bluff CS	Red Bluff City 	890818	1.2	Certified	Ronald Purcell	Lead Worker	17-OCT-23	17-OCT-23	17-OCT-23	Category 2 Spill	1235 Aloha Ct	10/11/2023 15:57	10/11/2023 16:05	10/11/2023 15:30	10/11/2023 19:09	23-6470		Private Clean out connected to a City syphon	40.16658	-122.24303	Lateral Clean Out (Private)			7376	Spill area was to the back yard of adjoining parcel. Discharged to dirt surface.	N						4444	Unpaved Surface		unpaved back yard of adjoining property	Y	40.16628	-122.2431							10/11/2023 17:04	Volume of recovery in Vac-Con and estimation of absorption into dirt surface	After home owner left for work after lunch and prior to home owner getting home from end of shift.	Debris-General; Debris-Rags		Siphon		Polyvinyl Chloride (PVC)		31	All spill settled into a low area on property.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Arrived, assessed, flushed line, removed debris, restored flow, removed spill contents, posted warnings, notified other agencies	Adjusted Schedule/Method of Preventive Maintenance		Increased the flushing schedule	completed 10-12-2023	10/11/2023 21:00	found rags upon first flushing and tools in pipe after second flushing.	N												N													
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District	890819	1.1	Certified	David Leamer	Assistant Superintendent		27-OCT-23	27-OCT-23	Monthly Category 3 Spill	332467	09/07/2023 20:28	09/07/2023 20:54	09/07/2023 16:00				See Attachment, Spill Map and Photos	38.50176	-121.44454	Manhole	N/A		320	See Attachment, Spill Map and Photos	Y	See Attachment, Spill Map and Photos	298				320	Drainage Conveyance System; Street/Curb and Gutter (2 3)		See Attachment, Spill Map and Photos	Y	38.50178	-121.44438	38.50171	-121.446					09/07/2023 21:00	See Attachment, Spill Volume Estimation.	See Attachment, Spill Volume Estimation.	Debris from Construction		Gravity Mainline		Vitrified Clay		64	No observed impact of spill	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Used HVVC equipment to brake stoppage in upstream manhole. Cleaned up spill from street, curb and gutter, including storm drain inlet with fresh water while vacuuming simultaneously. Cleaned up and recovered all spill from DI and storm drain system with fresh water and vacuuming simultaneously. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected mainline with CCTV on 9/13/23. Based on findings, SacSewer increased preventative cleaning frequency to 12 months from 24 months.		09/07/2023 23:40	Used HVVC equipment to brake stoppage in upstream manhole. Cleaned up spill from street, curb and gutter, including storm drain inlet with fresh water while vacuuming simultaneously. Cleaned up and recovered all spill from DI and storm drain system with fresh water and vacuuming simultaneously. TVI shows no roots, light grease, light solids. 1/8 to 3/8 pipe avg flow  TVI is for Spill. TVI shows mainline in fair condition after hydro cleaning. Hydro cleaning showed debris at 431 ft. from the DSMH caused stoppage. Increased cleaning PM back from 24 to 12 - months due to stoppage caused by debris to run in 03/2024.		None	09/13/2023 16:00														N/A	SacSewer increased preventive cleaning frequency from 24 months to 12 months.	SacSewer increased preventive cleaning frequency from 24 months to 12 months.	N/A	SacSewer inspected mainline with CCTV on 9/13/23.	N/A	SacSewer increased preventive maintenance frequency on 9/15/23.	N/A	None	
3	3SSO10265	Active	El Estero CS	Santa Barbara City PWD	890822	1.6	Certified	Amanda Flesse	Wastewater System Manager		08-JAN-24	08-JAN-24	Monthly Category 3 Spill	1000 De La Vina	08/26/2023 08:21	08/26/2023 08:31	08/26/2023 08:10				Spill at intersection of De La Vina and Carrillo St. 	34.41936	-119.70413	Manhole		Building 	241	Spill at intersection of De La Vina and Carrillo St. Spill was fully recovered from storm drain inlet.  See attachment. 	Y	Storm drain 	5				241	Building or Structure; Paved Surface; Street/Curb and Gutter (2 3)		Spill at intersection of De La Vina and Carrillo St. Spill that entered the storm drain inlet was fully recovered. 										08/26/2023 08:55	Used calculation volumes per Sewer Spill Estimation Guide Per Orange County and CWEA training.  Conversations with eyewitnesses.	Used calculation volumes per Sewer Spill Estimation Guide Per Orange County and CWEA training.  Conversations with eyewitnesses.	Debris-wipes/Non-disposables		Manhole		Other (specify below); Vitrified Clay	Lined	105	Most of the spilled stayed on the public right of way. The spill that reached the storm drain inlet was fully recovered.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Emergency responder contained at the storm drain inlet with sandbags at storm drain inlet CB-F09-05. The standby crew set up vacuum unit at CB-F09-05 to assist.   City staff vacuumed CB-F09-05 to recovered SSO. City staff flushed SSO area and recovered flush water. City Staff flushed storm drain from CB-F09 and CB-F09-13 and recovered at N-F09-25. 	Other (specify below)	Door hangers� public outreach. 	Door hangers� public outreach. 		08/26/2023 13:10	See attachment. 		N/A	08/26/2023 13:30														N/A	Door hangers� public outreach. 	Door hangers� public outreach. 	N/A	Inspection of MH	N/A	N/A	N/A	N/A	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	890826	1.1	Certified	Ameal McLaurin	Sewer Supervisor 2		20-OCT-23	20-OCT-23	Monthly Category 3 Spill	7137 Buckingham Blvd, Oakland Ca	10/12/2023 10:04	10/12/2023 10:40	10/12/2023 09:04				Temporary PVC above ground mainline on Easement pulled apart. 	37.8608	-122.22232	Gravity Mainline	Temporary PVC above ground mainline on Easement pulled apart. 	1	130	Temporary PVC above ground mainline on Easement pulled apart. 	N						0	Unpaved Surface		Temporary PVC above ground mainline on Easement pulled apart. The water soaked into the ground.										10/12/2023 17:19	Calculated volumes: 9'L x 2.08'W x .5'D x 7.48-Gal x .1875 = 13 Gallons 13'L x 5.5'W x.5'D x 7.48-Gal x .1875 = 50 Gallons 3'L x 3'W x .5'D x 7.48-Gal x .1875 = 6 Gallons 24'L x 2.08'W x .5'D x 7.48-Gal x .1875 = 35 Gallons 25'L x 1.5'W x .5'D x 7.48-Gal x .1875 = 26 Gallons x Total Spill: 13 + 50 + 6 + 35 + 26 = 130 Gallons	Start time couldn't be verified by any witness, reporting party didn't leave any call back number. We added 1 hour to start time. End time was when responding crew repaired the gravity mainline and the flow was restored.	Other (specify below)	Soil movement, PVC gravity mainline above ground pulled apart.	Gravity Mainline		Polyvinyl Chloride (PVC)		15	Temporary PVC above ground mainline on Easement pulled apart. The water soaked into the ground on the hillside.	N	Restored Flow		Fixed the pulled PVC mainline to restore the flow.	Plan Rehabilitation or Replacement of Sewer	CIP WO # 1429035 to rehabilitate the mainline has been created. 	CIP WO # 1429035 to rehabilitate the mainline has been created. 		10/12/2023 19:30	The temporary mainline above ground separated due to soil movement at the hillside. 		No	10/12/2023 19:30														N/A	CIP WO # 1429035 to rehabilitate the mainline has been created. 	CIP WO # 1429035 to rehabilitate the mainline has been created. 	CIP WO # 1429035 to rehabilitate the mainline has been created. 	Repaired the separated mainline.	CIP WO # 1429035 to rehabilitate the mainline has been created. 	CIP WO # 1429035 to rehabilitate the mainline has been created. 	CIP WO # 1429035 to rehabilitate the mainline has been created. 	No	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District	890837	1.3	Certified	John J. Hough	San Dist. Superintendent	17-OCT-23	27-OCT-23	27-OCT-23	Category 1 Spill	333812	10/13/2023 08:35	10/13/2023 09:22	10/13/2023 07:00		-		See Attached Spill Map.	38.5052	-121.4403	Lateral Clean Out (Public)			586	See Attached Spill Map.	Y	See Attached Spill Map.	534	0	See Attached Spill Map.	16	565	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See Attached Spill Map.	Y	38.5052	-121.4403							10/13/2023 10:45	See attached Volume Estimation.	See attached Volume Estimation.	Root Intrusion		Gravity Mainline		Vitrified Clay		64	No observed impacts of the spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified Sacramento County Department of Water Resources Drainage 	See attached Description of Event.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		SacSewer inspected the mainline with CCTV on October 16, 2023. Based on the findings, SacSewer adjusted the preventative maintenance cleaning frequency from 48 month to 24 month and will repair the main line.	24 Month Mainline Preventative Maintenance	10/13/2023 14:00	See attached Description of Event.	N			Morrison Creek	Stream/Creek		The impacted surface water is fenced and not accessible to the public. Morrison Creek is concrete-lined surface water that had moderate flow.	No observed impacts to aquatic life.	Other (specify below)	The impacted surface water is fenced and not accessible to the public.	N/A	0	N	N												
5S	5SSO11040	Active	Riverbank CS	Riverbank City	890845	1.2	Amended	Cody Bridgewater	Director of Public Works	18-OCT-23	18-OCT-23	18-OCT-23	Category 2 Spill	Coad Lane October	10/15/2023 11:50	10/15/2023 12:05	10/15/2023 11:50		-		Spill appeared at sanitary sewer manhole in intersection of Coad Ln and Caleb Ct	37.72722	-120.94815	Manhole		Manhole near 6025 Coad Lane	1160	Spill contained to storm drain system that flows to storm lift station, curb and gutter, and street	Y	storm drain system in Coad Lane	1160	0			1160	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		spill appeared at two manhole locations along Coad Lane, one at the intersection of Coad Lane and Caleb Court, the other in front of 6025 Coad Lane	Y	37.72723	-120.94815	37.72648	-120.94813					10/15/2023 15:45	Spill volume estimated by pickhole size and height of flow from pick hole.  1  semi-circle at 1/2  height = 1.77 gpm x 240 min = 425 gal 1  pick hole at 3/4  height = 3.0 gpm x 240 min = 735 gal 1160 gallon total	pickhole heights and diameters multiplied by spill length in minutes	Debris-Rags; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		40	spill contained to street, gutter, and storm drain.  Storm pump station isolated and turned off, pumped out to sewer	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		relieved plug in sewer main, vacuumed standing water from street and seperate storm line. Pumped out storm station with trash pump and returned to sewer main.	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance		Increase frequency of cleaning	10/16/23 - begin increased cleaning frequency	10/15/2023 18:45	excessive rags and grease build up	N												N													
3	3SSO11191	Active	Correctional Training Facility CS	California Department of Corrections and Rehabilitation	890851	1.3	Certified	James Johnson	CPM		23-OCT-23	23-OCT-23	Monthly Category 3 Spill	Correctional Training Facility	10/17/2023 07:30	10/18/2023 07:00	10/17/2023 18:20				Lateral Cleanout located at or around 36.46981, -121.38431.  Trail of liquid continued to about 36.46962, -121.38592.  Additional overflow from manhole located around 36.46749, -121.38827.	36.46981	-121.38431	Lateral Clean Out (Private); Other (specify below)	Man hole cover located at or around 36.46749, -121.38827.		800	Spill happened last night.  Unable to photograph.  Nothing remained to photograph this morning.	N						0	Unpaved Surface		Lateral Cleanout located at or around 36.46981, -121.38431.  Trail of liquid continued to about 36.46962, -121.38592.  Additional overflow from manhole located around 36.46749, -121.38827.										10/17/2023 20:30	LXWXDX7.5	Visual by staff on site.	Other (specify below)	After water was restricted for several hours, Majority of inmates flushed their toilets at the same time, causing our sewer drains to be overwhelmed.	Manhole; Other (specify below)	Lateral Cleanout	Acrylonitr. Butadiene Styrene (ABS); Vitrified Clay		1	Liquids on surface on grounds.  Some solids near overflow locations.	N	Other (specify below)	Removed solid waste.  Unable to collect liquid.  Sanitized with Lime.	Removed solid waste.  Unable to collect liquid.  Sanitized with Lime.	Other (specify below)	CTF is working on a procedure to follow when future events may allow most inmates to flush all at once.	N/A		10/18/2023 12:01	N/A		N/A	10/18/2023 13:30														N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	
1	1SSO10006	Active	Pelican Bay Prison CS	California Department of Corrections and Rehabilitation	890876	1.1	Certified	Kevin Day	water and sewer plant supervisor/CPO		26-OCT-23	26-OCT-23	Monthly Category 3 Spill	sand filter @ PBSP	09/25/2023 06:50	09/25/2023 06:15	09/25/2023 06:50				See Attachment spill location.	41.85796	-124.1537	Other (specify below)	the vault side of the sand filter see attachment 1 area behind filter		876	 See Attachment labeled  picture behind vault spill area 1a	Y	See Attachment #2	0				0	Other (specify below)	ground behind sand filter possibly headed to drain which leads to catch basin	ground right behind the sand filter mixing with heavy rain possibly heading to drain which leads to catch basin. See Attachment #3	Y	41.85793	-124.15364							09/25/2023 06:55	estimated based on the total secondary flow meter for the day divided by minutes in a day which equals GPD/min. GPD times spill time divided by three sand filters minus the free board in the vault. total of 438 gallons per two filters equals 876 gallons spilled.  See Attachment labeled math for spill	SCADA system alarm time and visual of when the spill stopped overflowing. time of 5 minutes being noted until flow stopped overflowing.	Other (specify below)	new scada system had a computer glitch and closed all valves to the sand filter vault. upon opening valve backed up water flowed over vault.	Other (specify below)	sand filter  scada system	Other (specify below)	open concrete vault with 3/8  diamond plate lids	35	chlorinated and biologically treated wastewater (partially treated wastewater) mixed with heavy rainfall was seen flowing onto the ground.	Y	Other (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow	partially treated wastewater mixing with heavy rain soaked in to wet ground	notified proper agency's starting with State Water Resources Control Board, Office of Emergency Services incident #23-6144 and having the local county health inspector Houawa Moua arrive same day and inspected the area and reported back to the SWRCB with his findings	Other (specify below)	additional training on SCADA and contractor to install additional security measures	Additional training on SOP for SCADA system and to have contractor to install additional safety and secure measures so this doesn't happen in the future.		09/25/2023 16:00	when switching the filter #2 to filter #3 on the radio-controlled SCADA system. the #2 filter closed and failed to open #3 sand filter. when an operator noticed that all three sand filters were closed causing the backup of water in the system. we then opened filter #3. thus, causing a high-level alarm from the water rushing in the vault. upon hearing the alarm all three filters were opened. immediately two operators went to investigate and noted the water overflowing from two of the sand filters. making adjustments where they could. total duration of 5 minutes was noted before sand filters were under control and back in service.		nothing ongoing at this time	09/25/2023 07:15														Local County health inspector Houawa Moua arrived same day walked the site and evaluated everything. said he was going to report back to the SWRCB also called Office of Emergency services and was given an incident # 23-6144	open valve before closing valve in SCADA system.	nothing to adjust. preventive maintenance not the issue	nothing needing repaired for rehabilitation or replacement	inspected and nothing needing repaired or replaced	only capital improvement is having SCADA Contractor install safe guards. otherwise no improvements on this equipment at this time.	had all operators sign a form that they had been given training on what had occurred and what to do in the future so as not to repeat this type of event. new SOP	SOP noting what to do if spill  occurs and where to find the necessary information. 	nothing ongoing at this time	
3	3SSO10334	Active	Seaside Co Sd CS	Seaside CSD	890905	1.2	Certified	Nisha Patel	District Engineer		20-OCT-23	20-OCT-23	Category 2 Spill	1755 Luzern	10/16/2023 07:25	10/16/2023 07:45	10/16/2023 06:51	10/16/2023 08:45	23-6548		The spill originated from manhole C9-107, in Luzern St, and the sanitary sewer cleanouts/backflow prevention devices at 1755 Luzern St. and 1745 Luzern St. The spill area encompasses a portion of Luzern Street and the gutter, paved and unpaved surfaces on 5 residential lots (1755 Luzern St, 1745 Luzern St, 1758 Vallejo St, 1754 Vallejo St, and 1744 Vallejo St), a portion of the gutter on Vallejo Street, and one catch basin on Vallejo Street.	36.613364	-121.831292	Backflow Prevention Device; Gravity Mainline; Lateral Clean Out (Private)		The spill originated from manhole C9-107, in Luzern St, and the sanitary sewer cleanouts/backflow prevention devices at 1755 Luzern St. and 1745 Luzern St.	1368	The spill spread over portions of the street and gutter on Luzern St and Vallejo St., paved and unpaved surfaces on 5 residential properties, and a storm drain catch basin on Vallejo St.	Y	A small volume of the spill reached a separate storm drain catch basin on Vallejo St. The catch basin was blocked, and the entirety of the portion that reached the catch basin was recovered.	1	0			50	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		The spill spread over portions of the street and gutter on Luzern St and Vallejo St., paved and unpaved surfaces on 5 residential properties, and a storm drain catch basin on Vallejo St.	Y	36.613364	-121.831292	36.613244	-121.831881	36.613389	-121.831633	36.613167	-121.831608	10/16/2023 07:51	Counting up stream connections. Staff counted upstream connections from the blockage point, used the table provided in the spill response workbook to acquire gallons per hour per connection, and recorded the duration of the spill event by interviewing residents and reviewing the first responder incident reports and staff field reports.	There are 114 connections up stream of the blockage point. Each connection is assumed to output 12 gallons per hour during the 6am to noon time block. The spill was active for 1 hour. 114 x 12 x 1 = 1368 gallons	Root Intrusion		Gravity Mainline		Vitrified Clay		60	Sewage spilled into the gutters on the 1700 blocks of Luzern St. and Vallejo St. 5 residential properties required clean up and disinfection.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Fire Department blocked gutter flow on Luzern St to prevent SSO reaching the storm drain and notified Public Works. Public works restored flow to the main line, blocked the storm drain on Vallejo and pumped out the small amount of flow that reached the catch basin. Public works then disinfected all effected portions of Luzern St, Vallejo St, the storm drain system, and the 3 residential properties on Vallejo. The City mobilized an on-call service provider to clean the 2 residential properties on Luzern St. The service provider bagged and removed soiled items, removed vegetation containing solid matter, and disinfected and power washed all effected areas on the residential properties on Luzern St.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Sewer segment added to annual root treatment list.	10/16/23 - Respond to spill, clear blockage, clean and disinfect all areas touched by sewage, video line, clear remainder of root ball.	10/16/2023 15:30	After restoring flow and cleaning up the spill, crew CCTV'd the sewer segment. CCTV showed a root ball in the sewer pipe. Crew used a jetter to cut out the root ball, and clear the line.	N												N													
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	890912	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	20-OCT-23	20-OCT-23	20-OCT-23	Category 1 Spill	51st Avenue & Foothill Blvd, Oaklan Ca	10/18/2023 19:55	10/18/2023 19:55	10/18/2023 19:00	10/18/2023 21:08	23-6610		Manhole overflowing in street at intersection of 51st Avenue & Foothill Blvd., the water was flowing to storm drainage conveyance system named 54th Ave, Peralta, Courtland, and Seminary creeks.	37.77265	-122.20512	Manhole			1564	Manhole overflowing in street at intersection of 51st Avenue & Foothill Blvd., the water was flowing from street and gutter to storm drainage conveyance system named 54th Ave, Peralta, Courtland, and Seminary creeks.	Y	The water was flowing from street and gutter to storm drainage conveyance system named 54th Ave, Peralta, Courtland, and Seminary creeks.	0	1564	Storm inlet flowing to underground drainage conveyance system.	1564	0	Drainage Conveyance System		Drainage conveyance system named 54th Ave, Peralta, Courtland, and Seminary creeks.	Y	37.76048	-122.21636							10/18/2023 20:38	Pick Hole and Vent Holer Chart: 1  Vent Holes x .25' Height = 1.77 GPM 1.77 GPM x 13 Holes = 23 GPM 23 GPM x 68 Minutes = 1564 Gallons	Start time was based on adding extra 25 minutes. The crew was the one that found the Manhole overflowing. There wasn't anybody to ask at the time, but the assumption is near that time because it's a heavily trafficked area. End time was based when the crew cleared the heavy construction debris blockage.	Debris from Construction		Gravity Mainline		Vitrified Clay		99	1564 gallons of sewage spilled into a storm drain inlet.	N	Cleaned Up (specify below); Restored Flow	Cleaned the affected area in the street.	We weren't able to contain the sewage in the conveyance system.	Inspected Sewer Using CCTV to Determine Cause	The CCTV inspection found the mainline to be in good condition. Construction work has been done around the upstream area.	N/A. We don't know if the cause was done by vandalism.	N/A	10/19/2023 09:40	The CCTV inspection found the mainline to be in good condition. Construction work has been done around the upstream area.	N			54th avenue ,Peralta, Courtland, Seminary Creek to Martin Luther King Jr. Shoreline	Estuary		Martin Luther King Jr. Shoreline	No impact.	Other (specify below)	No restricted access.	N/A	0	N	N												
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	890922	1.3	Certified	Ameal McLaurin	Sewer Supervisor 2	20-OCT-23	20-OCT-23	20-OCT-23	Category 1 Spill	50 Hiller Drive, Oakland Ca	10/19/2023 15:38	10/19/2023 17:02	10/19/2023 14:20	10/19/2023 17:36	23-6633		Lateral Clean Out (Private) overflowing at the public sidewalk area and flowing to gutter and entering into the storm drainage conveyance system.	37.85348	-122.23175	Lateral Clean Out (Private)			358	Lateral Clean Out (Private) overflowing at the public sidewalk area and flowing to gutter and entering into the storm drainage conveyance system.	Y	Storm inlet flowing to underground drainage conveyance system.	0	358	Storm inlet flowing to underground drainage conveyance system.	358	0	Surface Water		Lateral Clean Out (Private) overflowing at the public sidewalk area and flowing to gutter and entering into the storm drainage conveyance system.	Y	37.84994	-122.24216							10/19/2023 17:19	The property owner witnessed the overflow at 2:20 pm. Paul Escobosa 510-898-1206	2gm x 179 minutes = 358 gallons	Root Intrusion		Gravity Mainline		Vitrified Clay		99	Lateral Clean Out (Private) overflowing at the public sidewalk area and flowing to gutter and entering into the storm drainage conveyance system.	N	Cleaned Up (specify below); Restored Flow		Sewer staff cleaned affected area in the sidewalk and gutter.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause	Planning to repair sewer main.	Dig tag work order #1470583 has been created to repair the sewer main.	Dig tag work order #1470583 has been created to repair the sewer main.	10/20/2023 11:00	CCTV inspection found an offset joint. Plan for repairs have been made.	N			Temescal Creek	Other (specify below)	San Francisco Bay	San Francisco Bay	No impact observed.	Other (specify below)	No impact to public access	N/A	0	N	N												
2	2SSO10179	Active	San Jose City CS	San Jose City	890926	1.1	Certified	Ben Nguyen	Senior Engineer		31-OCT-23	31-OCT-23	Monthly Category 3 Spill	878 Desert Isle Dr, San Jose, CA 95117	09/25/2023 09:10	09/25/2023 09:16	09/23/2023 22:00				The reporting party at 878 Desert Isle Drive called noticing sewer spilling from the property's cleanout.  The overflow was intermittent because there mainline was partially blocked.   	37.31091977	-121.97464	Lateral Clean Out (Private)			81	The reporting party at at 878 Desert Isle Drive called noticing sewer spilling from the property cleanout.  The spill had reached the curb and gutter and MS4.  City crews contained all the sewage. 	Y	The spill discharged from the cleanout and traveled along the street curb/gutter.  From the curb gutter, the sewage traveled along the street and reached a nearby storm inlet.  This storm inlet is connected to the City of San Jose's municipal storm sewer system. The sewage traveled within the storm system to a storm manhole on the Manzanita drive where it was all recovered. 	57				81	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		The spill discharged from the cleanout and traveled along the street curb/gutter.  From the curb gutter, the sewage traveled along the street and reached a nearby storm inlet.  This storm inlet is part of the City of San Jose's municipal storm sewer system. The sewage traveled within the storm system to a storm manhole on the Manzanita drive where it was all recovered. 	Y	37.31091977	-121.97464	37.31136936	-121.9748672	37.31144801	-121.9737378			09/25/2023 09:25	The spill was estimated using a measurements of the spill boundary. The First Responder documented pictures of the spill area.  Dimensions of the spill boundary were estimated during responding activities. These dimensions were used to estimate the spill volume. Small amount of water entered MS4.  Due to short duration of the event, water depth in the MS4 was assume to be 0.25  to 1 .  All the spill volume was contained, cleaned up, and returned to the collection system.    	The methodology used to estimate the spill volume was measurements of the spill recorded by the first responder and assumed water depth in MS4.  The First Responder took video and pictures of the spill area.  Crew used tape measure and measuring wheel to measure the spill area. These dimensions were used to estimate the spill volume.  The total estimated spill volume and information from the Reporting Party (RP) were used to assume a reasonable start time. 	Debris-wipes/Non-disposables		Gravity Mainline		Vitrified Clay		63	The spill required cleanup of the street curb and gutter in front of  the 878 Desert Isle Drive and the curb and gutter on the Manzanita Drive. The impact of the spill resulted was isolated and there were no observed impacts to the public, nearby waterways, or wildlife. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		The spill started in a private lateral clean out and reached a catch basin connected to MS4.  Crew set up sandbags at catch basin, set up equipment to clear the plug and performed cleaning up of the affected area. Crew used one truck to induce water at appearance point and vacuumed the water from a dry storm drain MH.  All of the spill on land and MS4 was collected and returned to the collection system. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Work with outreach team to communicate wipe prevention to community. 	1. Conduct the wipes/ non disposable to the nearby residents. 2. Re-CCTV the problem pipe mainline to assess issues in 3 Months to identify potential blockages or grease buildups. 3. Add segment to root control list. 4. Revised cleaning cycle from 24 months and to 12 months 		09/25/2023 09:25	While the Responding Crew cleared the blockage in the plugged sanitary mainline, the Crew documented their findings. A pipe basket was used to collect the wipes and debris  that was causing the blockage of the mainline. Crew collected what appeared to be non disposable wipes which was likely the cause of the blockage. After conducting a follow up CCTV of the sanitary mainline, there were no other significant observations or defects in the pipe that would've contributed to the blockage. Therefore, it was determined that debris-wipes/non disposable was the primary cause of the blockage and spill. 		All investigation efforts for this spill event have concluded. 	10/18/2023 15:00														N/A	1. Re-CCTV the problem pipe mainline to assess issues in 3 Months to identify potential blockages or grease buildups. 2. Add segment to root control list 3. Revised cleaning cycle from 24 months and to 12 months 	N/A	N/A	 CCTV condition assessment of the problem pipe segment and nearby upstream and downstream segments were conducted the following day.   The segment was added to the root control list.  	No capital improvements were required based on the CCTV condition assessment. 	1. Conduct the wips/ non disposable to the nearby residents. 2. Add segment to root control list 	No modifications to the spill response activities were made 	All investigation efforts for this spill event have concluded. 	
5S	5SSO11040	Active	Riverbank CS	Riverbank City	890845	2.2	Certified	Cody Bridgewater	Director of Public Works	18-OCT-23	20-OCT-23	20-OCT-23	Category 2 Spill	Coad Lane October	10/15/2023 11:50	10/15/2023 12:05	10/15/2023 11:50		-		Spill appeared at sanitary sewer manhole in intersection of Coad Ln and Caleb Ct	37.72722	-120.94815	Manhole		Manhole near 6025 Coad Lane	1160	Spill contained to storm drain system that flows to storm lift station, curb and gutter, and street	Y	storm drain system in Coad Lane	1160	0			1160	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		spill appeared at two manhole locations along Coad Lane, one at the intersection of Coad Lane and Caleb Court, the other in front of 6025 Coad Lane	Y	37.72723	-120.94815	37.72648	-120.94813					10/15/2023 15:45	Spill volume estimated by pickhole size and height of flow from pick hole.  1  semi-circle at 1/2  height = 1.77 gpm x 240 min = 425 gal 1  pick hole at 3/4  height = 3.0 gpm x 240 min = 735 gal 1160 gallon total	pickhole heights and diameters multiplied by spill length in minutes	Debris-Rags; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		40	spill contained to street, gutter, and storm drain.  Storm pump station isolated and turned off, pumped out to sewer	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		relieved plug in sewer main, vacuumed standing water from street and seperate storm line. Pumped out storm station with trash pump and returned to sewer main.	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance		Increase frequency of cleaning	10/16/23 - begin increased cleaning frequency	10/15/2023 18:45	excessive rags and grease build up	N												N													
2	2SSO10179	Active	San Jose City CS	San Jose City	890930	1.2	Certified	Ben Nguyen	Senior Engineer	20-OCT-23	02-NOV-23	02-NOV-23	Category 1 Spill	Flanders drive and Piedmont Rd San Jose CA 95132	10/18/2023 09:22	10/18/2023 09:52	10/18/2023 06:00	10/18/2023 11:14	23-6598		The  spill appearance point was a manhole on Flanders drive within sanitary sewer easement.  A picture of the spill appearance point is attached in this report.	37.39363693	-121.845773	Manhole			6473	The spill discharged from the manhole and traveled along the street curb/gutter.  Water reached a nearby storm inlet which is connected to the City of San Jose's municipal storm sewer system. The sewage traveled within the storm system to a storm outfall discharging to the Sierra Creek. Picture of boundary is attached. 	Y	The spill reached a storm inlet and traveled toward an outfall of Sierra Creek.  This storm inlet is connected to the City of San Jose's municipal storm sewer system. 	2524	3949	Discharge point is an outfall belong to the City's municipal storm sewer system. The location of the storm outfall is approximately  37.39899473940755, -121.86191607602782. 	3949	2524	Surface Water		Spill destination is an outfall which is part of the City's storm sewer system.  	Y	37.39736	-121.85716							10/18/2023 10:15	Spill volume was estimate based on the discharging flow rate at the spill MH, which was estimated at 25 gpm.  Duration was about 255 min.  Start time was estimated and stop time was when crew cleared the plug at 20:15.  Volume recovered was 2524 gal.  Volume lost was 3949 gal.  Total spill volume was estimated at 6473 gallons.  	Flow rate duration method was employed for the overall spill volume.  Recovered volume was from measured area on land w/ water depth. Some assumption was made for the area since water was not uniformly cover the street surface. 	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		64	Spill area was in an access driveway next to a public school's parking lot.  It appeared that the access was not regularly used since debris was present and was not cleaned.  School parking lot has two other driveway that were regularly used.  Spill area is close to a park and community center.  There is a housing development next to the driveway, but not a access is connected.  Spill area appears to be not regularly used by the general public.  Impact is minimal to the general public.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System; Returned Portion of Spill to Sanitary Sewer System		Crew recovered partial of the spill from the spill area.  Crew checked outfall and confirmed water reached outfall.  Crew cleanup the spill area.  	Added Sewer to Preventive Maintenance Program; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause		Maintenance cycle will be adjusted pending video after three months.  Staff will evaluated intermittent check in at the MH and main.  	Segment will be videoed in three months. 	10/18/2023 10:15	Team checked area for potential grease contribution.  Team evaluated condition of the segment.  Minor defect was found, but at lower category.  Segment was found non-critical for repair.  Staff will distribute grease outreach flyer of the area.   	N			Sierra Creek	Stream/Creek		Sierra Creek is a stream in Santa Clara County, California. Sierra Creek is situated nearby to the suburb Berryessa and the hamlet East Foothills.	No observed aquatic life impact since creek was dry. 	Other (specify below)	No public access impact since creek is not intended for recreational usage. 	Valley Water	0	N	N												
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	890931	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2		24-OCT-23	24-OCT-23	Monthly Category 3 Spill	2808 8th Avenue, Oakland Ca	10/09/2023 14:30	10/09/2023 16:00	10/09/2023 16:15				Sewer Lateral (Private) at the public sidewalk area, flowing to street, curb, and gutter, and a very small amount of spilled water reached the storm inlet.	37.80208	-122.23878	Lateral Clean Out (Private)			147	Sewer Lateral (Private) at the public sidewalk area, flowing to street, curb, and gutter, and a very small amount of spilled water reached the storm inlet.	Y	Storm Drain inlet.	1				147	Drainage Conveyance System; Street/Curb and Gutter (2 3)		Sewer Lateral (Private) at the public sidewalk area, flowing to street, curb, and gutter, and a very small amount of spilled water reached the storm inlet.										10/09/2023 16:15	Sidewalk and Gutter: 217'L x 3'W x .03'D x 7.48-Gal = 146 Gallons Storm Inlet: 2'L x 1'W x .25'D x 7.48-Gal x .1875 = 1 Gallon Total Spill: 146 + 1 + 147 Gallons 	Start time was based on witness account, the reporting party. End time was based on responding crew, when they removed the blockage and restored the flow.	Root Intrusion		Gravity Mainline		Vitrified Clay		90	Sewer Lateral (Private) at the public sidewalk area, flowing to street, curb, and gutter, and a very small amount of spilled water reached the storm inlet.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Crew contained all the spill, and washed and cleaned the affected areas.  Crew returned all the spill to the Sanitary Sewer System.	Added Sewer to Preventive Maintenance Program; Other (specify below); Plan Rehabilitation or Replacement of Sewer	Spot repair WO # 1468510	6 Month High Frequency WO # 1469403, Spot repair WO # 1468510, and CIP WO # 1469387 has been created.		10/13/2023 10:54	CCTV found the mainline to have root infiltration and voids in the pipeline. 6 Month High Frequency WO # 1469403, Spot repair WO # 1468510, and CIP WO # 1469387 has been created.		N/A	10/13/2023 10:54														N/A	6 Month High Frequency WO # 1469403, Spot repair WO # 1468510, and CIP WO # 1469387 has been created.	6 Month High Frequency WO # 1469403.	CIP WO # 1469387 has been created.	CCTV inspection has been completed. Spot repair WO # 1468510	CIP WO # 1469387 has been created.	6 Month High Frequency WO # 1469403, Spot repair WO # 1468510, and CIP WO # 1469387 has been created.	6 Month High Frequency WO # 1469403, Spot repair WO # 1468510, and CIP WO # 1469387 has been created.	N/A	
5F	5SSO11229	Active	City of Hanford CS	Hanford City Urban Area SW System	890932	1.8	Certified	April Engen-Garza	Regulatory Compliance Analyst		31-OCT-23	31-OCT-23	Monthly Category 3 Spill	Hanford Adventist Health	10/19/2023 15:00	10/19/2023 15:20	10/19/2023 14:50				Behind Hanford Adventist Health Medical Center	36.3237021	-119.6662986	Manhole			150	Covered manhole and went into gutter and storm drain.	Y	Storm gutter and drain.	75				75	Drainage Conveyance System; Street/Curb and Gutter (2 3)		The spill covered the manhole cover and went into the gutter for approximately 20 feet about 4 - 6 inches wide and about <.25 deep. went into Storm Drain but did not fill the Catch basin. 	Y	36.3237021	-119.6662986							10/19/2023 16:10	Estimated spill time and plume size	Approximate time spill duration and plume size.	Debris-General; Debris-Rags; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Polyvinyl Chloride (PVC)		30	The spill reached the gutter, the storm drain catch basin, and roughly half was recovered.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned Portion of Spill to Sanitary Sewer System		Blockage was found, removed and the spill cleaned up.	Adjusted Schedule/Method of Preventive Maintenance		Visually check the area once a month.		10/19/2023 16:40	No illicit discharge, just grease and debris from residential discharge.		N/A	10/26/2023 15:49														N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	
5S	5SSO11011	Active	Nevada City CS	Nevada City	890937	1.2	Certified	Bryan McAlister	City Engineer		23-OCT-23	23-OCT-23	Monthly Category 3 Spill	Union Street	08/26/2023 23:43	08/27/2023 00:20	08/26/2023 23:00				Parking lot at 3Forks, grease was blocking gravity main.	39.26278	-121.01757	Gravity Mainline			400	350 gal of spill was recovered from ground surface at the parking lot.	Y	50 gal was in storm drain system.   The system was still dry at the drainage system outlet so the spill was able to be removed from the drainage system by jetting/cleaning/vaccum	50				400	Drainage Conveyance System that discharges to surface water		Spill was contained in the immediate vicinity and did not spread to other areas.										08/27/2023 01:00	by estimate of spill area and by measured amount in Vac-Tron tank	by estimate of spill area and by measured amount in Vac-Tron tank	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		120	None.    Spill was captured and spill area was cleaned.	N	Cleaned Up (specify below)		Spill was captured using Vac=Tron and spill area was cleaned.	Adjusted Schedule/Method of Preventive Maintenance		City will monitor grease interceptors at commercial businesses in this area.		08/27/2023 15:11	TBD - City will inspect and enforce FOG in accordance with City Ordinance		None	08/27/2023 15:12														TBD - City will inspect and enforce FOG in accordance with City Ordinance	None	None	None	None	None	TBD - City will inspect and enforce FOG in accordance with City Ordinance	None	None	
9	9SSO10649	Active	City of El Cajon CS	El Cajon City	890946	1.2	Certified	Mike James	Deputy Director of Public Works		23-OCT-23	23-OCT-23	Monthly Category 3 Spill	1338 E Main St	09/24/2023 20:45	09/24/2023 21:05	09/24/2023 20:10				Spill originated at a private lateral located at 1338 E Main Street in El Cajon, Ca.  This location is an active construction site and the upper portion of the sewer lateral had been disconnected.  The remaining lower was exposed, had not been capped, and was located approximately two feet below the sidewalk just on the property side.  	32.79748	-116.93361	Lower Lateral (Private)		N/A	982	Spill was contained in the dirt at a construction excavation area on the property.	N	N/A	982				982	Unpaved Surface		Spill was contained in the dirt at a construction excavation area on the property.  This area was measured at approximately 10'x25' with an average depth of 6 .	Y	32.79753	-116.9337							09/24/2023 21:45	The spill volume estimation was determined by measuring the area which contained the spill.  This area was measured at approximately 10'x25' with an average depth of 6  at 7.48 gallons per square foot = 935 gallons.  There was an additional area of 4'x4'x6 x7.48 = 47 gallons.  This totals 982 gallons.  Averages depths were estimated a bit high to account for soil absorption.  In addition the eyeball method was used to estimate the spill flow rate at approximately 10 gallons per minute.	Spill start time estimation was determined by reports from the onsite job foreman.  In addition, using the estimated duration of the spill (95 minutes) x the estimated flow rate (10gpm) = 950 gallons.  This is very close to the 982 gallon estimate from the measurements taken.	Debris-wipes/Non-disposables		Gravity Mainline		Vitrified Clay		65	There was no impact of the spill to downstream waterways due to full containment and cleanup of the spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Crews responded quickly to the spill report and verified a sewer main blockage.  The crew used a combination jetter to clear the blockage of wipes, paper towels, and debris.  the crew then cleaned up the private property area using clean water and vacuumed up all of the sewer which was returned to the sanitary sewer system.  Additionally, the construction company was notified that they needed to cap the exposed private lateral.	Other (specify below)	Construction company was notified to cap the private sewer lateral which was completed on 9/25/2023.  Additionally, management for the apartments buildings upstream of the blockage were notified of residents flushing paper towels and wipes.	Construction company was notified to cap the private sewer lateral which was completed on 9/25/2023.  Additionally, management for the apartments buildings upstream of the blockage were notified of residents flushing paper towels and wipes and educated how this can cause overflows.		09/24/2023 23:00	Cause of spill was determined to be a combination of wipes and paper towels from upstream apartment buildings along with debris that most likely came from the open lateral that had been disconnected from the building at 1338 E Main street during construction.		N/A	09/25/2023 12:00														N/A	N/A	More frequent inspection of this line is scheduled to monitor for wipes and paper towels.	N/A	N/A	N/A	N/A	N/A	N/A	
4	4SSO10376	Active	Claremont City CS	Claremont City	890956	1.4	Certified	Cari Dillman	Community Services Manager	23-OCT-23	20-MAY-24	20-MAY-24	Category 2 Spill	480 INDIAN HILL BLVD	10/19/2023 10:40	10/19/2023 11:00	10/19/2023 10:40		-		MANHOLE ADJACENT TO 480 INDIAN HILL BLVD	34.09845	-117.71912	Manhole			1000	OVERFLOW FROM MANHOLE ADJACENT TO 480 INDIAN HILL BLVD	Y	UNKNOWN DRAINAGE OUTLET IS IN POMONA, CA	0	0			0	Paved Surface		34.087479670549165, -117.71929495699517	Y	34.087479670549	-117.719294956995							10/23/2023 13:30	SSCSC Manhole Overflow Gauge	SSCSC Manhole Overflow Gauge	Debris from Construction; Debris-General		Manhole		Vitrified Clay		62	manhole overflow exited City to Pomona	N	Cleaned Up (specify below); Restored Flow		Line cleared by staff and cleaned up after 	Added Sewer to Preventive Maintenance Program		Area was sanitized	area was cleared and sanitized. The area will be put on a watch list and inspected frequently. 	10/23/2023 13:34	Construction debris was found in the line. 	N												N													
4	4SSO10502	Active	LA City Bureau of Sanitation CS	Los Angeles City Bureau of Sanitation	890968	1.2	Certified	Gerald Watson	Sanitation Wastewater Manager III		02-APR-24	02-APR-24	Monthly Category 3 Spill	21159 South Denker Avenue	10/23/2023 15:25	10/23/2023 16:41	10/23/2023 15:25				The initial crew arrived at 4:41P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	33.836399	-118.304252	Lateral Clean Out (Private)			764	Attached.	N	None.	0				150	Other (specify below); Unpaved Surface	The crew was able to establish containment and subsequently they returned the partial back up amount to the sewer system, the remainder of the back up amount soaked into the ground.	33.836399     118.304252	Y	33.836399	-118.304252							10/23/2023 16:45	Volume of a spill contained in a rectangular area  Spill flowrate and volume determination based on flowout pickhole or opening 	Length20feet Width6feet Depth2inches0.1667feet  20.00ft3150gallons  Diameter of pickhole or opening3.25inches Height of water out of pickhole/opening0.0625inches Flowrate per pickole/opening (gpm)10gpm # of pickholes/openings1 Total flowrate (gpm)10gpm Duration of spill (minutes)80minutes Total flow (gallons)764gallons 	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		74	It was estimated that approximately 764 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment; an estimated 614 gallons entered the property at 21159 South Denker Avenue, where it soaked into the ground. The remaining 150 gallons of the back up was successfully returned into the sewer system. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		On Monday, October 23, 2023 at 3:25 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer trouble at 21159 South Denker Avenue (TG 763-J5). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 4:45 PM. The cause of the blockage was attributed to Fats, Oil and Grease (FOG). All necessary clean-up was then performed.  It was estimated that approximately 764 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment; an estimated 614 gallons entered the property at 21159 South Denker Avenue, where it soaked into the ground. The remaining 150 gallons of the back up was successfully returned into the sewer system.  	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		This Pipeline Has Been Placed On Semi-Annual Maintenance Schedule, CCTV Revealed Some Defects, That Will Be Repaired By An On-Call City Contractor.		10/23/2023 16:45	A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 4:45 PM. The cause of the blockage was attributed to Fats, Oil and Grease (FOG). All necessary clean-up was then performed.		No.	10/23/2023 16:45														None At this Time.	This Pipeline Has Been Placed On Semi-Annual Maintenance Schedule, CCTV Revealed Some Defects, That Will Be Repaired By An On-Call City Contractor.	This Pipeline Has Been Placed On Semi-Annual Maintenance Schedule, CCTV Revealed Some Defects, That Will Be Repaired By An On-Call City Contractor.	This Pipeline Has Been Placed On Semi-Annual Maintenance Schedule, CCTV Revealed Some Defects, That Will Be Repaired By An On-Call City Contractor.	This Pipeline Has Been Placed On Semi-Annual Maintenance Schedule, CCTV Revealed Some Defects, That Will Be Repaired By An On-Call City Contractor.	Not At this Time.	This Pipeline Has Been Placed On Semi-Annual Maintenance Schedule, CCTV Revealed Some Defects, That Will Be Repaired By An On-Call City Contractor.	A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 4:45 PM. The cause of the blockage was attributed to Fats, Oil and Grease (FOG). All necessary clean-up was then performed.  It was estimated that approximately 764 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment; an estimated 614 gallons entered the property at 21159 South Denker Avenue, where it soaked into the ground. The remaining 150 gallons of the back up was successfully returned into the sewer system.  	No.	
2	2SSO10177	Active	San Carlos City CS	San Carlos City	890975	1.3	Certified	Steven J. Machida	Public Works Director		30-OCT-23	30-OCT-23	Monthly Category 3 Spill	40 Ensenada	09/22/2023 08:25	09/22/2023 08:27	09/22/2023 07:15				The spill originated in the driveway of 40 Ensenada at the lower public cleanout. 	37.50822	-122.27314	Lateral Clean Out (Public)			74	The spill traveled 318 feet down the street in the gutter. 	N						74	Street/Curb and Gutter (2 3)		Spill located in front of 40, 54, 60, 64 and 70 Ensenada 	Y	37.5085	-122.27289	37.50865	-122.27261	37.50884	-122.27263	37.50909	-122.27268	09/22/2023 08:43	Area volume method was used and converted into gallons.	Measurements of the area were used to come up with the estimates.	Root Intrusion		Gravity Mainline		Vitrified Clay		75	The spill only impacted the gutters. It was cleaned up and returned to the sewer system. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Cleared blockage, and used vac truck to clean up impacted areas	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Used hydro jetter to remove root intrusion in the main line.	Added to to 6 month cleaning list. CCTV showed room and used root destroyer nozzle in jetter to remove.		09/22/2023 10:25	CCTV showed root ball 130 feet upstream from manhole AR/29		NA	09/22/2023 03:00														NA	Updated cleaning frequancy	6 month	added to CIP	Inspected 9/22/23 with CCTV	Added to list	NA	NA	NA	
1	1SSO11419	Active	Humboldt CSD CS	Humboldt CSD	890978	1.1	Certified	Tim Latham	Superintendent		24-OCT-23	24-OCT-23	Monthly Category 3 Spill	 D  Street, Fields Landing	10/14/2023 11:46	10/14/2023 12:05	10/14/2023 11:30				Alley near 6560  D  Street, Fields Landing, Ca.	40.72728	-124.21628	Gravity Mainline			60	Confined within alley near 6560  D  Street, Fields Landing	N						10	Unpaved Surface		Within 10 ft. radius of coordinates listed above										10/14/2023 12:15	Spill was contained on the gravel/vegetation surface of the alley roadway, and a visual estimation was applied	 See above	Fats, Oil and Grease (FOG)		Gravity Mainline		Other (specify below)	Asbestos Cement	50	No impact	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Crews responded to the location, confirmed the blockage in the sewer main line, which contributed to the intermittent spilling of sewage from the end line clean out. Once flow was restored, crews returned a portion of the spill to the sewer system, cleaned up the affected areas, and made all proper notifications.	Adjusted Schedule/Method of Preventive Maintenance		Adjusted schedule for preventive maintenance		10/14/2023 14:00	This section of sewer main line is on the enhanced main line cleaning list due to the flat grade of the main line. We have increased the frequency of the cleaning. Grease buildup was the cause of the spill.		N/A	10/14/2023 12:00														N/A	Increase frequency of cleaning this section of the sewer main line	Adjusted the schedule	Will be repaired as time and money allows	See above	See above	The enhanced cleaning preventive maintenance schedule has been modified to include more frequent cleanings related to this section of sewer main line.	N/A	N/A	
5S	5SSO11054	Active	South Placer Mud CS	South Placer MUD	890979	1.2	Certified	Eric Nielsen	Superintendent	25-OCT-23	06-NOV-23	06-NOV-23	Category 1 Spill	J09-093_Rocklin	10/23/2023 08:57	10/23/2023 09:07	10/22/2023 13:10	10/23/2023 10:13	23-6682		See attached Spill Event Summary.	38.79263	-121.22839	Lateral Clean Out (Private)			9724	See attached Spill Event Summary.	Y	See attached Spill Event Summary.	1	0	See attached Spill Event Summary.	9722	2	Surface Water		See attached Spill Event Summary.	Y	38.78832	-121.22755							10/23/2023 09:44	See attached Spill Event Summary.	See attached Spill Event Summary.	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		65	See attached Spill Event Summary.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	See attached Spill Event Summary.	See attached Spill Event Summary.	Other (specify below)	See attached Spill Event Summary.	See attached Spill Event Summary.	See attached Spill Event Summary.	10/23/2023 16:36	See attached Spill Event Summary.	N			Sucker Ravine	Stream/Creek		See attached Spill Event Summary.	See attached Spill Event Summary.	Other (specify below)	No impact to public access.	City of Rocklin	0	N	N												
4	4SSO10449	Active	Thousand Oaks Municipal Service Center	Thousand Oaks City 	890982	1.2	Certified	Patrick McCulloch	Utilities Maintenance Supervisor	25-OCT-23	25-OCT-23	25-OCT-23	Category 1 Spill	Janss Road and Lynn Road	10/24/2023 09:08	10/24/2023 09:25	10/24/2023 09:08	10/24/2023 11:20	23-6705		Single spill from a manhole located in the left-hand turn lane heading east towards Lynn Road on Janns Road.  Coordinates below for manhole location. Attached photo of the manhole in attachments and GIS map with location in attachments. 	34.2062	118.88697	Manhole			832	Spill exited the manhole on Janns Rd. and traveled to the gutter on Lynn Road. Flow followed the gutter North on Lynn Rd. to the storm drain catch basin and V-ditch. 	Y	Traveled down Lynn Road gutter to storm drain catch basin that flowed to V-ditch storm drain channel. V-Ditch storm channel traveled to Waverly Channel waterway. 	624	0	Flow entered cracks on V-ditch and flowed under V-ditch channel to Waverly Channel surface water. Photo of V-ditch and Waverly Channel discharge point attached. 	208	624	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		The spill event destination was a catch basin that connected to V-ditch. V-ditch connected to the Waverly Channel that makes its way to the North Fork Arroyo Conejo. 	Y	34.2062	118.88697							10/24/2023 10:00	Estimated SSO flow out of manhole cover in place. Volume estimation sheet attached in the City's Wastewater Related Spill and Overflows Policy. Height of spout above M/H rim 1 and half inches or 16 GPM. Multiplied by length of time of spill.	Spill start time 9:08 A.M. and spill end time 10:00 A.M.  10/24/2023. 	Damage by Others Not Related to Collection System Construction/Maintenance; Debris from Construction		Gravity Mainline; Manhole		Polyvinyl Chloride (PVC)		46	Spill resulted in 208 gallons of wastewater entering the Waverly Channel. No impact on paved roads, gutter, and V-ditch due to staff cleaning and collecting wastewater. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Staff responded and put sandbags in V-ditch to collect spill. Staff used hydro cleaning truck to remove asphalt lodged in the gravity main/manhole. Staff washed down the paved road and gutter and vacuumed up to collect wastewater. Staff cleaned the catch basin and V-ditch and collected wastewater. 	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect		Removed asphalt lodged in the gravity main and manhole. Scheduled crew to remove remaining asphalt on side walls of pipe and manhole on 10/30/2023. Scheduled traffic control for high traffic areas to do confined space entry to rehab back to normal with the removal of remaining asphalt. 	Scheduled milestone repair on 10/30/2023. Confined space entry to remove the remaining asphalt. 	10/24/2023 10:00	Staff set up CCTV equipment and televised the segment of the pipe where the spill occurred. CCTV footage showed broken asphalt lodged in the gravity main at a manhole on Lynn Road. The manhole had asphalt on the side walls. Removed lodged asphalt with hand tools. 	N			Waverly Channel	Other (specify below); Stream/Creek	Waverly Channel leads to a creek named North Fork Arroyo Conejo. 	Waverly Channel leads to a creek named North Fork Arroyo Conejo. Water bodies are naturally occurring. 	No observed impacts. 	Restricted Public Access		City of Thousand Oaks	3	N	N	City's Laboratory Supervisor awaiting VCEHD confirmation if samples need to be taken. No feasible access to upstream sample site.	City's Laboratory Supervisor awaiting VCEHD confirmation if samples need to be taken. No feasible access to upstream sample site.										
5S	5SSO10938	Active	Easterly CS	Vacaville City DPW	890992	1.2	Certified	Miguel Medina	Assistant Engineer	25-OCT-23	05-NOV-23	05-NOV-23	Category 1 Spill	Peabody Road and Southwood Drive	10/21/2023 11:43	10/21/2023 11:50	10/21/2023 11:16	10/21/2023 12:36	23-6665		Sewer manhole (SSMH4449) had been overflowing to the south to a nearby storm drain (SDIN7004). The 24-inch SD conveyed sewage to the north from SDIN7004 to SD7006 to the 24-inch outfall near Alamo Creek. The Vactor was set at SDIN7006, therefore the sewage within the SD from SDIN7004 to SDIN7006 was recovered. The sewage from SDIN7006 to the outfall was not recovered.	38.33896	-121.97129	Gravity Mainline; Manhole			1909	Spill began at appearance point SSMH4449 and flowed into SDIN7004; from SDIN7004 to SDIN7006: from SDIN7006 to the Outfall; from the Outfall to Alamo Creek. At SSMH4449, sewage was contained within the gutter.	Y	SDIN7004 to the Outfall is a 24-inch diameter pipe.	807	2	The 24-inch diameter outfall to the creek had debris which reduced the amount of spill due to damning.	1038	871	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		From the 24-inch outfall, the spill entered Alamo Creek and travelled an approx. length of 636 feet downstream.	Y	38.34066	-121.97065	38.34121	-121.96984					10/21/2023 11:58	The volume estimation includes a calculation using an interpolated gpm rate from sewage coming out of the manhole ring and the creek travel time. The creek travel time was calculated from a combined creek velocity by using a Marsh-McBirney  Flo-Mate  Model 2000 flow meter in feet per second (ft/s). Refer to the Volume Calculation attachment for assumptions. The other methods used include the volume contained in a gutter and the volume in a partially filled pipe.	The start time was back calculated from the end time and the travel time per Sheet 1 of the Volume Calculation attachment. 	Fats, Oil and Grease (FOG)		Gravity Mainline; Manhole		Vitrified Clay		53	The sewage from SDIN7006 to the outfall was not recovered therefore spilling into Alamo Creek. At the outfall, the water was stagnant to low flow. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	The spill contained in the gutter was washed down along with the storm drain being flushed and vacuumed.	Upon setting up the vactor truck at the last DI (SDIN7006) before the outfall to contain the spill. Adjacent to SDIN7006 is another sewer manhole which was used to flush the sewer line and dislodge the grease. 	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below)	Staff is preparing prevention/reading materials to provide to the apartment complexes and homes in the area.	The purchase of a SmartCover is in process. The SmartCover will be installed at SSMH4449 to eliminate future spills. 	Within the next month, install SmartCover system at SSMH4449 and perform a CCTV inspection to gauge adequate cleaning schedule.	10/21/2023 13:00	FOG build-up caused the spill.  Staff dislodged the significant grease build up when flushing the sewer line to clear the blockage.	Y	Staff took an additional sample at an upstream location well beyond the spill boundaries to check background conditions against the sample results within the spill boundary. The time allowed would also serve to double check the volume estimates.	12/22/2023 15:32	Alamo Creek	Stream/Creek		Alamo Creek 	No impacts to aquatic life observed or noted.	Other (specify below)	Posted cautionary signs at key locations.	City of Vacaville	0	N	Y	Samples were taken at the drainage conveyance, discharge point, upstream, and downstream locations.  	Ammonia, Conductivity, Total Coliform, E. coli, pH, and Temperature.									Staff took an additional sample at an upstream location well beyond the spill boundaries to check background conditions against the sample results within the spill boundary. The time allowed would also serve to double check the volume estimates.	
3	3SSO10289	Active	Mission Hills La Purisima CS	Mission Hills CSD	891000	1.3	Certified	Javier Rodriguez	Operations Supervisor	03-NOV-23	06-NOV-23	06-NOV-23	Category 2 Spill	2775 Rucker Rd	10/23/2023 10:30	10/23/2023 10:40	10/23/2023 10:30	10/23/2023 12:22	23-86687		8  PVC Force main had a crack on the bell. Approximately 5 inch long. Force main is located near the driveway at 2775 Rucker Rd. Spillage ended up on the property near the porch area. All off the spillage percolated into the ground.	34.67734	-120.43852	Force Main			1050	Spill made its way onto the property approximately 20 Ft from the force main. Spill puddled up and percolated into the ground.	N						0	Building or Structure		The spill made its way approximately 20 feet down the slope and pooled up near a porch area.	Y	34.67736	-120.4386							10/23/2023 14:10	The spill was calculated using a 5 gallon bucket and timed. Then multiplied by the hours it took for the spill to stop. The force main was emptied by releasing the wastewater back into the wet well and then pumped out of the wet well and delivered to the wastewater plant. 	The flow was calculated at 5 gallons per minute with a total time of 3.5 hours.	Other (specify below)	Crack on the bell side of the plastic pipe.	Force Main		Polyvinyl Chloride (PVC)		35	Spill caused minimal damage to the property. All of the water percolated into the ground and did not reach any part of the main house. Outside patio was washed down and disinfected. 	N	Cleaned Up (specify below)	Pressured washed and disinfected 	Lift station was shut down while the spill was being investigated. Contracted pumper trucks to pump down lift station for the entire time that was needed to fix the leak. Once repairs were made the force main was pressure tested and the lift station was put back into service. 	Repaired Facilities or Replaced Defect		Upon making repairs we inspected the condition of the pipe and concluded that the existing pipe is still in great condition. Steps that are going to be taken to reduce or anticipate future failure points will be to camera and inspect these connection points with in the pipe.	The Schedule for these milestones will be in the year 2024	11/06/2023 14:32	Cause of the spill was due to a failure in the pipe.	N												N													
5S	5SSO11054	Active	South Placer Mud CS	South Placer MUD	891001	1.1	Certified	Eric Nielsen	Superintendent		25-OCT-23	25-OCT-23	Monthly Category 3 Spill	3991 Bankhead Rd, Loomis	09/17/2023 17:30	09/17/2023 18:05	09/17/2023 15:05				See attached Spill Event Summary for description and photographs.	38.81177	-121.21006	Lateral Clean Out (Public)			57	See attached Spill Event Summary for a description and photographs of the extent of the spill boundaries.	N						1	Unpaved Surface		The spill was naturally contained to gravel/soil area around the clean out.										09/17/2023 17:32	See attached Spill Event Summary.	See attached Spill Event Summary.	Vandalism (specify below)	RV tank cap was dropped down the property line clean out.	Lower Lateral		Vitrified Clay		63	See attached Spill Event Summary.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	See attached Spill Event Summary.	See attached Spill Event Summary.	Inspected Sewer Using CCTV to Determine Cause		A Warning of Non-Compliance letter was sent to the resident to educate of the District's Sewer Code related to vandalism.		09/17/2023 19:45	See attached Spill Event Summary.		None.	09/17/2023 19:03														A Warning of Non-Compliance letter was sent to the resident to educate of the District's Sewer Code related to illicit discharges.	Not applicable.	Not applicable.	Not applicable.	Not applicable.	Not applicable.	Not applicable.	Not applicable.	None.	
1	1SSO11491	Active	Santa Rosa City CS	Santa Rosa City Utilities Dept	891022	1.2	Amended	Ron Marincic	Utility System Superintendent		26-OCT-23	26-OCT-23	Monthly Category 3 Spill	2979 Corby Ave	10/25/2023 17:25	10/25/2023 17:45	10/25/2023 17:20				Photos attached.  Spill appearance point was manhole at GPS coordinates above.	38.40552	-122.71648	Manhole			124	Spill exited a manhole at approximately 1-2 gpm.  Flow traveled approximately 705 feet to storm DI.	Y	Storm drain system.  Approximately 18.54 gallons was captured and removed.	8454				124	Paved Surface; Street/Curb and Gutter (2 3)		Spill exited a manhole at approximately 1-2 gpm.  Flow traveled approximately 705 feet to storm DI.		38.40552	-122.71648							10/25/2023 18:22	Calculation based on flow(gpm) of when the whiteness first saw spill.  Area and volume calculation from SERP.	Calculation based on flow(gpm) of when the whiteness first saw spill.  Area and volume calculation from SERP.	Damage by Others Not Related to Collection System Construction/Maintenance	Boring by telecommunications company.	Gravity Mainline		Other (specify below)	AC pipe.	54	Minimal impact.  All liquid, no solids.  Spill vacuumed and rinsed.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Spill was contained to gutter and storm drain.  Blockage was cleared and area including storm drain was cleaned/vacuumed.	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Cleared blockage, CCTV'd pipe.  Found that pipe had been bored through by telecommunications company.  Going to monitor until encroachment officers can have company make repairs, or we will conduct repairs in house.	Cleared blockage, CCTV'd pipe.  Found that pipe had been bored through by telecommunications company.  Going to monitor until encroachment officers can have company make repairs, or we will conduct repairs in house.		10/25/2023 18:00	Spill was caused by a communications company boring through sewer main.  Staff will be working with City Encroachment to identify and hold responsible, the correct contractor.		Will continue to monitor main while working with encroachment to identify responsible party.  Will make repairs if needed.	10/27/2023 10:22														Cleared blockage, CCTV'd pipe.  Found that pipe had been bored through by telecommunications company.  Going to monitor until encroachment officers can have company make repairs, or we will conduct repairs in house.	none.	none.	Working with encroachment to make repairs.	Inspected asset to find boring through pipe	none.	none.	none.	Will continue to monitor main while working with encroachment to identify responsible party.  Will make repairs if needed.	
2	2SSO11533	Active	SLAC National Accelerator Laboratory CS	US Dept of Energy	891024	1.2	Certified	Jo Beth Folger	Civil engineer		15-NOV-23	15-NOV-23	Monthly Category 3 Spill	Manhole 23	10/16/2023 02:59	10/16/2023 04:27	10/16/2023 02:59				Appearance point: (where spill reached surface) Manhole 23: Lat 37.4195, Long -122.2025  Failure point: Spill was traced to a blockage downstream at Manhole 22: Lat 37.4198, Long -122.2026. Manhole 22 did not overflow. 	37.4195	-122.2025	Manhole			300	Spill ran downhill along roadway 570 feet and entered a storm drain catch basin, where it was contained. 	Y	The majority of the water was retained on the pavement and along the road�s curb and evaporated prior to reaching the storm drain catch basin. An estimated 5 gallons entered storm drain catch basin 35C-1. This quantity was fully removed.	5				300	Drainage Conveyance System; Other (specify below); Paved Surface; Street/Curb and Gutter (2 3)	295 gallons evaporated from road/pavement and sanitized; 5 gallons contained in storm drain catch basin, removed and cleaned. 	Storm drain catch basin 35C-1: Lat 37.4199, Long -122.2007	Y	37.4199	-122.2007							10/16/2023 03:12	Visual estimation based on Sewer Spill Estimation Guide developed by Orange County Area Waste Discharge Requirements Steering Committee	SCADA system used to estimate spill start and end times based on the nearby Sand Hill flowmeter, visual observations of manhole by staff	Debris-General		Gravity Mainline		Vitrified Clay		60	Approx. 570 linear ft along curb of roadway was impacted, this roadway was promptly disinfected. A small amount of spill reached a storm drain catch basin. It did not exit the storm drain catch basin. The storm drain catch basin was sealed off and was subsequently thoroughly cleaned and disinfected. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		Facilities responded promptly and sand bagged around both the sanitary sewer manhole and the storm drain catch basin. They also used a plug in the storm drain catch basin to isolate any additional runoff from entering the system. Blockage was removed from the sewer line. Roadway was disinfected. Storm drain catch basin was cleaned out and jet washed. All wash water was collected and containerized for proper disposal.	Repaired Facilities or Replaced Defect		Blockage was removed from the line and line was jetted in both directions on 10/16/23. Storm drain catch basin was isolated until it could be cleaned out and jet washed on 11/7/2023. 		11/07/2023 17:00	Rescue Rooter came onsite, located the blockage, cleared the blockage, and jetted out the sewer both directions from the blockage. The cause of the blockage was a piece of debris possibly leftover from a prior maintenance effort.   A review of the SCADA system indicated that the overflow was short in duration. The cause was most likely the result of a  blow down  of a cooling tower, which sent a surge of water through the system. The surge of water combined with the reduced pipe capacity due to blockage led excess water to exit the nearest upstream manhole.   The SCADA system was monitored for any additional irregular flow. The SCADA system indicated that regular flow patterns were restored following removal of the blockage.   		None	10/16/2023 17:00														None	None	None	None	Line at Manhole 22 and 23 was inspected and cleared 	None	None	None	None	
2	2SSO10164	Active	Palo Alto Regional CS	Palo Alto City	891029	1.3	Certified	Anthony Meneses	WGW Operations Manager		30-NOV-23	30-NOV-23	Monthly Category 3 Spill	275 Forest Avenue	10/05/2023 17:18	10/05/2023 18:36	10/05/2023 19:10				See attachments for report and pictures 	37.44392	-122.1599215	Lateral Clean Out (Public)			896	See photos in attachment tab	Y	37.44380577737575, -122.15973774747447	400				870	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		11 c and d = failure location  11 e and f = end point	Y	37.443772	-122.159791	37.4438	122.159747					10/05/2023 20:50	128 minutes of flow x 7 gallons per minute  = 896 gallons total volume of spill 	assuming lost 26 gallons. Used the eyeball estimate method along with the Pictorial Reference Flow Rate.  	Damage by Others Not Related to Collection System Construction/Maintenance		Gravity Mainline		Other (specify below)	PE	26	Spill impacted the sidewalk, gutter and storm drain	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	CCTV to determine cause 	Absorbant and dam used 	Repaired Facilities or Replaced Defect		A temporary repair has been made to prevent further stoppages		10/06/2023 13:42	Spill was caused by contractor drilling into the sewer main.		In communication with vendors to make a final repair	10/05/2023 20:50														No 	N/A. SSO caused by construction caused by cable contractor. Pierced conduit lines through sewer main. 	The repair will be monitored until a permanent repair has been made 	Not at this time	Asset has been repaired 	Not at this time 	N/A. SSO caused by construction caused by cable contractor. Pierced conduit lines through sewer main. 	Emergency response from Stand By team to restore the flow of the main and clean the affected surface areas and storm drain	In communication with vendors to make a final repair	
2	2SSO10104	Active	Ccsf - San Francisco Airport CS	CCSF - San Francisco Airport	891034	1.1	Certified	Jennifer Acton	Director of Maintenance		30-OCT-23	30-OCT-23	Monthly Category 3 Spill	Gate C5	09/24/2023 13:20	09/24/2023 13:25	09/24/2023 12:55				Spill originated and appeared from one sanitary sewer manhole located on the airfield ramp.	37.61536	-122.38307	Manhole			119	Spill traveled downgradient on the paved surface, through the aircraft ramp envelope, and towards the aircraft taxilane, no storm drains affected.	N						119	Paved Surface		Spill traveled downgradient on the paved surface from the appearance point and stopped within the aircraft taxilane.	Y	37.6159	-122.38259							09/24/2023 14:12	Spill volume was estimated using Area/volume method.  Extent of spill and measurements of spill area were performed using photographs provided by responding parties and personnel on scene.	Start and end times estimated using information gathered by Spill Team after interviewing tenant personnel on scene and visual observations by responding airport personnel.	Fats, Oil and Grease (FOG)		Gravity Mainline		Ductile Iron		38	Spill overflowed from manhole appearance point and impacted the paved surface of the aircraft envelope. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Airport Airfield Safety Operations, Spill Team, and Plumbers responded to spill incident.  Plumbers used vactor truck to perform hydrojetting at the gravity main line to clear the blockage and return flow.  Airport scrubbing contractor was mobilized and cleaned the impacted paved surface using surface scrubbing equipment.  All waste was returned to the airport's sanitary sewer system.	Other (specify below)	Investigate FOG sources and if frequency of tenant grease trap servicing is sufficient.  Perform routine FOG inspections of tenant facilities.  Area on a routine monthly preventative maintenance schedule for Plumbers to inspect and use vactor truck as needed.	Investigate FOG sources and if frequency of tenant grease trap servicing is sufficient.  Perform routine FOG inspections of tenant facilities.  Area on a routine monthly preventative maintenance schedule for Plumbers to inspect and use vactor truck as needed.		09/24/2023 15:32	Airport Plumbers investigation on scene determined the cause of the spill was due to grease deposition in the gravity mainline.   		NA	09/24/2023 17:00														NA	NA	NA	NA	NA	NA	NA	NA	NA	
2	2SSO11610	Active	Airport Industrial Wastewater CS	San Francisco City & County Airport Commision-Design & Construction	891038	1.1	Certified	Jennifer Acton	Director of Maintenance		30-OCT-23	30-OCT-23	Monthly Category 3 Spill	South McDonnell Rd. IW Line	09/26/2023 13:45	09/26/2023 14:02	09/26/2023 13:35				Spill originated from a failed force main cleanout plug that was under ground.  Wastewater appeared from cracks in the pavement above the cleanout.    Wastewater spilling from this cleanout failure is wastewater from an airport detention basin used to capture wet weather first flush storm water runoff from the airport storm drainage system.  	37.607	-122.3858	Lateral Clean Out (Public); Other (specify below)	Spill originated from a failed force main cleanout plug that was under ground.  Wastewater appeared from cracks in the pavement  and flowed onto the paved surface. 		825	Spill flowed from underground out of cracks in the roadway paved surface and extended north at side of road and along curbside.	Y	Storm drain catch basin	811				825	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Spill flowed onto the paved roadway surface in the immediate area and also into a nearby storm drain catch basin.  Catch basin leads to the airport's storm drain conveyance system and to a downstream pump station.  The pump station was already isolated and shut off in dry weather mode.  During wet weather first flush operations by the treatment plant, the water within the pump station is pumped/diverted to an adjacent 1.5 million gallon capacity detention basin and until basin is full.  All wastewater from the detention basin is then returned to the treatment plant for processing. 	Y	37.60514	-122.37856							09/26/2023 14:30	Spill volumes were estimated using flow rate eyeball estimation and video collected in the field by responding airport staff.  Spill training photo resources of flow rates from manhole pick holes were also referenced to assist with the estimated spill volume calculation.	Spill start time estimated using information provided by responding airport personnel and the assumption that the notification call was made not too far after the spill started as the area is a high traffic area.  Spill end time provide by responding airport personnel who were informed when the IW pump was shut off.	Other (specify below)	Force mainline cleanout plug failure	Other (specify below)	Forced mainline cleanout	Other (specify below)	Failure of brass cleanout plug	46	Spill flowed onto paved roadway toward curb and entered storm drain catch basin.  IW pump station required shutting off pumps until repairs completed.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Airport Facilities and Spill Team responded to spill incident to investigate.  Treatment plant operators shut off upstream IW pump at pump station to stop spill.  Area on ground surface impacted by spill was evaporating quickly and appeared it would be completely evaporated before scrubbing contractor would arrive on site to perform any scrubbing.	Repaired Facilities or Replaced Defect		Failed cleanout removed.  New riser pipe and cleanout installed.  To grade access vault installed for cleanout access.		09/26/2023 14:55	IW force main pumps were shut off and information was used to determine the spill was related to the IW force mainline.  Airport Facilities departments responded and excavated the area around the spill location and determined the spill was caused by the failure of the IW force mainline cleanout plug.  		NA	10/04/2023 15:00														NA	NA 	NA 	NA	Failed cleanout removed.  New riser pipe and cleanout installed.  To grade access vault installed for cleanout access.	NA	NA	NA	NA	
2	2SSO10228	Active	Fair Oaks SMD	San Mateo County DPW	891040	1.2	Certified	Mark Chow	Principal Civil Engineer	27-OCT-23	07-NOV-23	07-NOV-23	Category 1 Spill	1040 High Road	10/24/2023 08:30	10/24/2023 08:40	10/23/2023 17:07		-		The overflow happened at a private lateral cleanout and was caused by a blockage in the sewer main. 	37.442446	122.239062	Lateral Clean Out (Private)			487	The spill went into the dirt area surrounding the private sewer cleanout and a concrete drainage ditch along High Road. The concrete drainage ditch flows into an underground storm pipe that discharges to the surface water.	Y	The concrete drainage ditch flows into an underground storm pipe that discharges to the surface water.	0	0	The discharge point into the surface water is an underground storm pipe (CMP).	472	0	Drainage Conveyance System; Surface Water; Unpaved Surface		The spill went into the dirt area surrounding the private sewer cleanout and a concrete drainage ditch along High Road. The concrete drainage ditch flows into an underground storm pipe that discharges to the surface water.	Y	37.4416	-122.23736							10/24/2023 09:20	Estimated observed spill rate at the private cleanout and spill duration were used to calculate the total spill volume.	We called and visited the resident several times and was not able to obtain date and time that he first observed the spill. We added 30 minutes to the time when we received the call.	Root Intrusion		Gravity Mainline		Polyvinyl Chloride (PVC)		30	The spill entered into the Redwood Creek	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow		Containment was not possible due to the steepness of the road and gutter and the spill reached the creek. Staff cleared the blockage and cleaned up by washing and vacuuming the spill area.	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		The spot where roots were growing has been repaired.	The spot repair has been completed.	10/24/2023 13:30	Staff performed CCTV inspection of the pipe segment where the blockage occurred. Roots were growing at the joint of PVC pipe where the gasket has failed.	N			Redwood Creek	Stream/Creek		Small stream with heavy vegetation	Unknown	Other (specify below)	The creek is not easily accessible to the public.	Not applicable	0	N	Y	Samples were taken at the upstream of source, at the source and downstream of the source.	E-coli, total and fecal coliform and enterococci										
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	891044	1.2	Certified	Kent Vian	Asst. Deputy Director		29-NOV-23	29-NOV-23	Monthly Category 3 Spill	NOT-40201025348 14195 WINDCREST LN	10/28/2023 18:40	10/28/2023 19:00	10/28/2023 18:40				SPILL ORIGINATED AT (32.97317-117.08142) FROM MANHOLE EQ10759246.	32.97317	-117.08142	Manhole		N/A	205	SPILL BOUNDARIES ARE STREET, CURB,GUTTER AND STORM DRAIN.	Y	STORM DRAIN	205				205	Drainage Conveyance System; Street/Curb and Gutter (2 3)		SPILL DESTINATION IS STORM DRAIN  (32.97521-117.08444)	Y	32.97521	-117.08444							10/28/2023 19:20	VISUAL CALCULATED METHOD.	START TIME ESTIMATION IS WHEN CUNSUMER CALLS STATION 38 THEN WE RECEIVE THE CALL.	Root Intrusion		Manhole		Polyvinyl Chloride (PVC)		37	SPILL IMPACT STREET,CURB,GUTTER AND STORM DRAIN.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		SPILL RESPONSE ACTIVITIES INCLUDED INVESTIGATE,RELIVED,TRACK DOWN FINAL DESTINATION,RETURN ALL SEWER BACK INTO THE SYSTEM CALLED TO CCTV MAINS AND WASHED DOWN AREA.	Adjusted Schedule/Method of Preventive Maintenance		SPILL CORRECTION ACTION ADJUST SCHEDULE PREVENTIVE MEASURES.		10/28/2023 20:35	N/A		N/A	10/29/2023 09:35														N/A	N/A		none	none	none	none	none	N/A	
3	3SSO10335	Active	Sewage Treatment Plant CS	Soledad City	891045	1.2	Certified	Gabriel Perez	Water Reclamation Facility Chief Plant Operator	07-NOV-23	07-NOV-23	07-NOV-23	Category 2 Spill	1777 Metz road	10/28/2023 17:00	10/28/2023 17:15	10/28/2023 05:00	10/28/2023 19:30	23-6769		A pump failed on site at winery causing sewer overflow. There was no domestic waste in the overflow. Spill consisted of Wine, water and cleaning chemicals. 	36.42586	-121.30904	Manhole; Upper Lateral (Private)	This was a private manhole on Winery property.		1000	Photos are of spill location and path.	Y	Spill reached a county cannel that leads to the Salinas river. picture is attached.  	400	150			600	Drainage Conveyance System; Paved Surface; Unpaved Surface		Spill originated on private property and GPS coordinates are imputed below. 	Y	36.42566	-121.30802	36.42571	-121.30983	36.42624	-121.31285	36.42597	-121.31295	10/29/2023 18:40	We measured the length and various widths of the spill with Randy form the County health department. 	we relied on Winery personnel for this information. 	Pump Station Failure - Controls; Pump Station Failure - Mechanical; Pump Station Failure - Power		Manhole; Pump Station - Controls; Pump Station - Mechanical; Pump Station - Power		Concrete		20	Although this particular incident did not produce any adverse effects to City's collection system, the spill had to be reported due to the evidence witnessed by staff.	N	Cleaned Up (specify below)		City staff arrived to assist in clean up efforts, Monterey County Health department was called and dispatched to spill location, OES was called and case number was issued. Wine group had a contractor come up to remove 3 inches of top soil the whole length of spill. 	Other (specify below)	Wine group will be adding pump monitoring system.	Wine group is working on a maintenance program. 	Contact Wine group for specifics.	10/30/2023 09:06	Spill was caused by a faulty pump from the Wine group catch basin, which resulted in a over loaded sewer system on their property. The spill was wine waste only no domestic was involved in the spill.	Y	To make sure pump issues are corrected.	11/10/2023 09:09										N												To make sure pump issues are corrected.	
4	4SSO10491	Active	Terminal Island CS	Los Angeles City Bureau of Sanitation	891047	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		02-APR-24	02-APR-24	Category 1 Spill	823 North Watson Avenue	10/29/2023 12:51	10/29/2023 13:52	10/29/2023 14:57	10/29/2023 19:17	23-6779		The initial crew arrived at 1:52P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	33.781734	-118.247509	Manhole		None taken.	444	None taken.	Y	None taken.	201	243	None Taken.	243	201	Other (specify below)	County catch basin located at 800 North Watson Avenue, which is tributary to Cerritos Channel.  	34.780782  118.247433	Y	34.780782	118.247433							10/29/2023 14:57	Spill flowrate and volume determination based on flowout pickhole or opening 	Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening3inches Flowrate per pickole/opening (gpm)4gpm # of pickholes/openings1 Total flowrate (gpm)4gpm Duration of spill (minutes)126minutes Total flow (gallons)444gallons 	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		107	It was estimated that approximately 444 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish Partial containment of 201 gallons, and was returned to the sewer system. Approximately 243 gallons entered an adjacent County catch basin located at 800 North Watson Avenue, which is tributary to Cerritos Channel.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		On Sunday, October 29, 2023 at 12:51 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 823 North Watson Avenue (TG 794-G6). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 2:57 PM. The cause of the blockage was Grease. All necessary clean-up was then performed.  It was estimated that approximately 444 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish Partial containment of 201 gallons, and was returned to the sewer system. Approximately 243 gallons entered an adjacent County catch basin located at 800 North Watson Avenue, which is tributary to Cerritos Channel.   	Adjusted Schedule/Method of Preventive Maintenance		Pipeline Placed On Semi-Annual Maintenance Schedule.	None At This Time.	10/29/2023 14:57	A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 2:57 PM. The cause of the blockage was Grease.	N		10/29/2023 14:57	Pacific Ocean	Other (specify below)	Cerritos Channel.	Cerritos Channel.	None At The Time Of The Incident.	Other (specify below)	None.	Beaches and Harbor	0	N	Y	Anaheim Street And Watson Avenue.	Unknown At This Time.										
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	891051	1.1	Certified	Kent Vian	Asst. Deputy Director		29-NOV-23	29-NOV-23	Monthly Category 3 Spill	NOT-40201025383- 18730 POLVERA DR.	10/29/2023 12:02	10/29/2023 12:35	10/29/2023 12:01				SPILL ORIGINATED AT GPS COORDINATES (33.04716-117.05665) FROM 8  MAIN EQ#10078246.	33.04716	-117.05665	Gravity Mainline; Lateral Clean Out (Private)	N/A	CLEAN OUT	142	SPILL BOUNDARIES ARE TWO SEPERATE HOME'S 	N	N/A	142				142	Building or Structure	N/A	SPILL DESTINATION WAS TWO SEPERATE PROPERTIES GPS COORDINATES( 33.04716-117.05665)		33.04716	-117.05665							10/29/2023 13:12	VISUAL CALCULATED METHOD.	START TIME ESTIMATION IS WHEN CUNSUMER CALLS STATION 38 THEN  WE RECEIVE THE CALL AND RESPONDE.	Root Intrusion		Gravity Mainline		Vitrified Clay	N/A	51	 SPILL IMPACT INTO TWO PROPERTIES BATHROOMS,BEDROOMS,AND HALLWAYS.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	N/A	SPILL RESPONSE ACTIVITIES INCLUDED INVESTIGATE,RELIVED,TRACK DOWN FINAL DESTINATION,AND RETURNING ALL SEWER BACK INTO THE SYSTEM CALLED LUTH & TURLEY CCTV MAINS AND WASHED DOWN AREA.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause	N/A	SPILL CORRECTION ACTION IS TO ADJUST SCHEDULE PREVENTIVE MEASURES.		10/29/2023 14:35	N/A		N/A	10/30/2023 10:48														N/A	N/A	NONE	NONE	NONE	NONE	NONE	NONE	N/A	
2	2SSO10200	Active	Sunnyvale CS	Sunnyvale City	891052	1.5	Certified	Winola Cheong	Senior Engineer		22-NOV-23	22-NOV-23	Monthly Category 3 Spill	1048 Dunford Wy 	10/27/2023 15:04	10/27/2023 15:15	10/27/2023 14:49				See Attachments 	37.34517	-122.00522	Gravity Mainline; Manhole		N/A 	960	See Attachments 	Y	Spill was contained in curb and gutter. 	960				960	Paved Surface; Street/Curb and Gutter (2 3)		Spill was contained in residential paved street and curb and gutter.  	Y	37.34538	-122.00531	37.34544	-122.0053	37.34536	-122.00484			10/27/2023 15:21	San Diego Flow Chart  Duration Flow rate method 	gallons x min passed - Duration Eye Ball Method 	Root Intrusion		Gravity Mainline		Vitrified Clay		60	Sewage in street  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Contained spill in curb and gutter using spill shark and sandbags. Vacuumed and washed street with combo truck  Used bacteria enzymes to disinfect the area (liquid alive) Returned all recovered all materials to sewer systems.   	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Root Saw main 	One time event 		10/27/2023 18:50	Root sawed main followed by CCTV corrective action results in maintainable mainline 		Investigation complete corrective action completed see attached forms. 	10/30/2023 15:52														NA 	See Attached 	NA 	NA 	Inspected Assests are maintainable 	Not Needed 	See Attached 	See Attached Work Order showing times. Technician followed SOP for spills. 	Investigation complete corrective action completed see attached forms. 	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	891053	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	30-OCT-23	30-OCT-23	30-OCT-23	Category 1 Spill	Escher drive & Westover Drive, Oakland Ca	10/28/2023 13:09	10/28/2023 13:49	10/28/2023 12:30	10/28/2023 14:14	23-6765		Lamp-Hole on the side of the road was knocked out of place and allowed dirt and debris to flow into it, blocking the mainline.	37.82547	-122.19756	Other (specify below)	Lamp-Hole on the side of the road was knocked out of place.		635	Lamp-Hole on the side of the road was knocked out of place and allowed dirt and debris to flow into it, blocking the mainline. The Lamp-Hole was overflowing on the gutter area to a Separate storm drain that flows into Sausal creek dry bed.	Y	The Lamp-Hole was overflowing on the gutter area to a Separate storm drain that flows into Sausal creek dry bed.	0	635	The Lamp-Hole was overflowing on the gutter area to a Separate storm drain that flows into Sausal creek dry bed.	635	0	Drainage Conveyance System that discharges to surface water		Lamp-Hole on the side of the street was knocked out of place allowing for the soil and debris to flow into it, blocking the water flow and overflowing from it.	Y	37.82525	-122.19826							10/28/2023 14:37	127 minutes x 5 GPM = 635 Gallons	Start time was based on eyewitness account, Armando Lozano.  End time was based on responding crew when they cleared the soil blockage from the inside of the mainline.	Damage by Others Not Related to Collection System Construction/Maintenance		Other (specify below)	Lamp-Hole on the side of the street was knocked out of place allowing for the soil and debris to flow into it.	Vitrified Clay		90	Lamp-Hole on the side of the street was knocked out of place allowing for the soil and debris to flow into it, blocking the water flow and overflowing from it. The sewage flowed from the Lamp-Hole to the gutter and into the conveyance system, from there it flowed into Sausal creek dry bed.	N	Cleaned Up (specify below); Restored Flow	Washed and cleaned the gutter area and the conveyance system.	restored the flow, washed and cleaned the gutter area and the conveyance system.	Repaired Facilities or Replaced Defect	A construction work order was created to reset the Lamp-Hole casting and cover. 	A construction work order was created to reset the Lamp-Hole casting and cover. 	A construction work order was created to reset the Lamp-Hole casting and cover. 	10/28/2023 16:04	Lamp-Hole on the side of the street was knocked out of place allowing for the soil and debris to flow into it, blocking the water flow and overflowing from it. The sewage flowed from the Lamp-Hole to the gutter and into the conveyance system, from there it flowed into Sausal creek dry bed.	Y	CCTV inspection to find other potential causes of the overflow.	11/03/2023 13:06	Sausal creek dry bed.	Stream/Creek		Sausal creek dry bed.	None	Other (specify below)	No public restricted access.	N/A	0	Y	N											CCTV inspection to find other potential causes of the overflow.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	891056	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2		07-NOV-23	07-NOV-23	Monthly Category 3 Spill	476 Florence Avenue, Oakland Ca	10/26/2023 21:54	10/26/2023 23:00	10/27/2023 01:00				Sewage was seeping through the asphalt on the street.	37.8379	-122.2262	Other (specify below)	Sewage was seeping through the asphalt on the street.		121	Water was seeping through the asphalt on the street, on the right side of the property on Julia Street, it flowed down to Julia & Florence, then it flowed down on gutter area on Florence Avenue, it went across the street and down on the gutter area on Harbord Street where it ended.	Y	A small amount of water reached the storm drain at the intersection of Florence & Julia Street; the spill was contained at the downstream storm Manhole with the help of sandbags. 	1				121	Drainage Conveyance System; Street/Curb and Gutter (2 3)		Water was seeping through the asphalt on the street, on the right side of the property on Julia Street, it flowed down to Julia & Florence, then it flowed down on gutter area on Florence Avenue, it went across the street and down on the gutter area on Harbord Street where it ended.		37.83772	-122.2264	37.83754	-122.2264					10/27/2023 01:00	Street area on Julia: 90'L x 12'W x >01'D x 7.48-Gal = 81 Gallons Street area on Julia/Florence: 15'L x 9'W x .01'D x 7.48-Gal = 10 Gallons Storm line on Julia/Florence: 30'L x .33'W x .02' D x 7.48-Gal = 1 Gallon Gutter on Florence: 90'L x 1'W x.02'D x 7.48-Gal = 13 Gallons Street on Florence: 30'L x 4'W x .01'D x 7.48-Gal = 9 Gallons Gutter on Harbord Dr: 50'l x 1'W x .02'D x 7.48-Gal =7 Gallon Total Spill: 81 + 10 + 1 + 13 + 9 + 7 = 121 Gallons	Start time was based on eyewitness account by reporting party. End time was based on responding crew, the time when crew restored the flow.	Pipe Structural Problem/Failure - Installation	Gravity mainline was broken, it was repaired on 1 spot.	Gravity Mainline		Vitrified Clay		90	Water was seeping through the asphalt on the street, on the right side of the property on Julia Street, it flowed down to Julia & Florence, then it flowed down on gutter area on Florence Avenue, it went across the street and down on the gutter area on Harbord Street where it ended.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Contained all the spill with sandbags, flushed the mainline and restored the flow, washed the affected areas and vacuumed all the spill, and returned all the sewage to the sewer system.	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect		Mainline was added to a 6Month preventative maintenance program.  CCTV inspection has been completed. It had 1 spot repaired, and a CIP work order was created.		11/06/2023 18:14	CCTV inspection found the mainline broken, A spot repair was completed. CIP work order was created to rehab the mainline.		N/A	11/06/2023 19:14														N/A	Mainline was added to a 6Month preventative maintenance program. It had 1 spot repaired, and a CIP work order was created.	Mainline was added to a 6Month preventative maintenance program.	 CIP work order #1475017 was created.	Mainline was added to a 6Month preventative maintenance program.  CCTV inspection has been completed. It had 1 spot repaired, and a CIP work order was created.	 CIP work order #1475017 was created.	6 Month Hydro work order #1475018, CIP work order #1475017 was created.	 CIP work order #1475017 was created.	N/A	
2	2SSO10196	Active	Sonoma Valley County S.D. CS	Sonoma County Water Agency (SCWA)	891059	1.4	Certified	Daniel Colvin	WA Coordinator		28-NOV-23	28-NOV-23	Monthly Category 3 Spill	301 First st W	10/28/2023 17:30	10/28/2023 18:30	10/28/2023 18:45				Water flowing from manhole out of street to the gutter to the DI.	38.29544	-122.45834	Manhole			400	sewer flowing from manhole to gutter entering a DI	Y	DI in curb	400				400	Drainage Conveyance System that discharges to surface water; Paved Surface		Dry DI in the curb 	N									10/28/2023 18:45	Spill filled about 1/4 of our 2000 gallon debris tank	Crews observed the debris tank level while dumping at the plant.	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		56	sewer hit curb and entered dry DI where it was captured by cleaning culvert and DI box	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		active overflow was stopped with jetting and affected spill area was washed down with water and captured by vac truck.  The DI was opened and culvert jetted and vacuumed as well	Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause		additional cleaning was done and frequency of cleaning adjusted. FOG enforcement was also made aware.  upon response they investigated cleaning schedule of grease trap.  See Attachment 		11/27/2023 07:54	video of line and FOG removed.  IW informed and found out of compliance industrial user.  IW implemented stricter guidelines to assure future compliance.  See Attachment		Monthly inspections of grease trap cleaning. See Attachment	11/27/2023 08:08														NA	Frequency of line cleaning adjusted and grease trap cleaning frequency investigated. see attachment	Additional line cleaning 	NA	video taken while cleaning to ensure clean pipe	NA	NA	NA	Monthly inspections of grease trap cleaning. See Attachment	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	891063	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	31-OCT-23	02-NOV-23	02-NOV-23	Category 2 Spill	7230 Woodrow Drive, Oakland Ca	10/29/2023 18:43	10/29/2023 20:00	10/29/2023 15:50	10/29/2023 20:29	23-6792		Water was seeping out of the ground on a hillside. A tree had fallen at the site.	37.83222	-122.19507	Gravity Mainline	Water was seeping out of the ground on a hillside. A tree had fallen at the site.		5625	The water was seeping out of the ground on a hillside. The water was diverted to the down-stream sewer Manhole on the street. Some of the water soaked into the soil at the hillside and at the soil gutter area.	N						5123	Other (specify below); Unpaved Surface	Spilled sewage seeped into the soil on the hillside. The spill was diverted to the downstream sewer manhole.	Spilled sewage seeped into the soil on the hillside.	Y	37.83222	-122.19507							10/30/2023 10:30	1120 minutes x 5GM=5,600 gallons.	Spill time was established by East Bay Mud. End was based on the responding sewer crew restoring the flow.	Other (specify below)	Fallen tree caused the overflow.	Gravity Mainline		Vitrified Clay		90	The water was seeping out of the ground on a hillside. The water was diverted to the downstream sewer manhole on the street. Some of the water soaked into the soil, and at the soil gutter area.	N	Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Sewer staff cleaned affected areas on the hillside.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		This line has been added to a six-month high maintenance program. This has been recommended for a CIP.	This line has been added to six-month high maintenance program.	10/30/2023 20:30	The cause of the spill was a fallen tree next to the main on the hillside.	N												N													
8	8SSO10591	Active	Orange City CS	Orange City	891067	1.1	Certified	Mike Carney	Environmental Program Manager		07-NOV-23	07-NOV-23	Monthly Category 3 Spill	698 N. Ranch Wood Trail	10/21/2023 09:31	10/21/2023 11:05	10/21/2023 08:30				Wastewater backed up into the bath tub of the private residence. The homeowner used a sump pump to pump the wastewater into the backyard so that it would not overflow the bath tub and damage his home.	33.79976	-117.77719	Other (specify below)	Private property bath tub drain	N/A	764	Wastewater spread out across the grass and dirt areas of the backyard of the large private residence. Much of the wastewater flowed to a concrete lined trampoline pit, where it was contained, removed and returned to the system.	N	N/A					465	Other (specify below); Unpaved Surface	Concrete trampoline and open grass and dirt area of the home.	Wastewater saturated the soil of the backyard of the home. As well as flowing into the concreted trampoline pit.	Y	33.7997	-117.77732							10/21/2023 11:30	The spill volume was estimated using the saturated soils method and a sphere volume calculator for the concrete pit.	Spill start time was determined by when the homeowner noticed wastewater backing up into the bath tub. Spill end time was determined when City crews cleared the blockage from the mainline.	Vandalism (specify below)	Pool plaster	Gravity Mainline		Vitrified Clay		48	Wastewater spread across the grass and dirt areas of the backyard of the large private residence. Much of the wastewater flowed to a concrete lined trampoline pit, where it was contained and removed.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Wastewater was pumped back to the sanitary sewer. Affected areas of the back yard were disinfected.	All wastewater that was contained in the trampoline pit was pumped back to the sanitary sewer via a clean out in the backyard.	Inspected Sewer Using CCTV to Determine Cause	Removed pool plaster from the mainline	N/A		10/22/2023 15:30	N/A		N/A	10/25/2023 11:30														N/A	N/A	N/A	N/A	The mainline was inspected via camera; a large block of hardened pool plaster was seen and subsequently removed; this vandalism was determined to be the cause of the spill; all visible remnants of the plaster were removed.	N/A	N/A	N/A	N/A	
4	4SSO10414	Active	Palos Verdes Estates City CS	Palos Verdes Estates City	891068	1.2	Certified	Robert Swartz	Sr. CE	01-NOV-23	17-NOV-23	17-NOV-23	Category 1 Spill	1491-0341 (2501 V�a Olivera, Palos Verdes Estates)	10/25/2023 10:33	10/25/2023 10:50	10/25/2023 10:00		-		CSMD Map Sheet No. 1491 Manhole No. 341 MMS No. 8505312 Manhole No. 341 was overflowing.	33.77458	118.41032	Manhole	Manhole No. 341		300	sewage spill from M/H 341 flowed across asphalt pavement to the gutter and entered a city storm drain inlet at 2520 Via Olivera.	Y	Unnamed city drain, connected to  BI 0558 - U1 Line A - Abbotswood   	0	0	BI 0558 Unit 1 Line A outlet to Agua Amarga Canyon,	300	0	Drainage Conveyance System; Street/Curb and Gutter (2 3)		Sewage was flowing from M/H 341 onto the street.  The sewage spill entered a storm drain. 	N									10/25/2023 11:04	Start time is obtained from the reporting party, end time is when the crew clears the obstruction ad the overflow stops. 	CWEA SSCSC Manhole Gauge	Root Intrusion		Gravity Mainline		Other (specify below)	Lined VCP	55	N/A	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow		Upon arrival, the City of Palos Verdes Estates had already established containment using sandbags at the storm drain. We utilized hydro jet equipment to clear the mainline root blockage, conducted cleanup in the spill area, and promptly informed the necessary agencies. 	Other (specify below)	Inspect & monitor condition.  	Will inspect the sewer using CCTV to determine if further actions are needed.	N/A	10/25/2023 12:00	Will inspect the sewer using CCTV to determine if further actions are needed.	N		12/31/2023 12:30	Agua Amarga Canyon, Santa Monica Bay. 	Ocean; Wash		Agua Amara Canyon,   Santa Monica Bay	N/A	Other (specify below)	No impact.	City of Rancho Palos Verdes, Public Health Department	0	N	N												
2	2SSO10187	Active	Santa Clara City CS	Santa Clara City	891069	1.3	Certified	Garrett Brown	Superintendent	31-OCT-23	01-NOV-23	01-NOV-23	Category 2 Spill	1820 Bellomy St 	10/30/2023 17:56	10/30/2023 17:56	10/30/2023 17:22		-		Sewer main was blocked with grease down stream from Lateral and 17 feet from Manhole See Attachment	37.341391636031	-121.951434967735	Lateral Clean Out (Private)			1500	See Attachment	Y	See Attachment	1500	0			1500	Drainage Conveyance System		Spill entered a Catch basin on N. Winchester Blvd that entered the storm system and followed N. Winchester Blvd North to Homestead Rd.   The flow then turned East onto Homestead Rd and flowed to Madison Ave.  On Madison Ave the flow headed North to Benton Ave.  At Benton Ave the flow turned and headed east 197' where we captured the spill with our Combo Vaccon truck	Y	37.341391636031	-121.951434967735	37.349234990318	-121.949249922226					10/30/2023 18:22	Estimation was calculated with overflow gauge. Flushed Storm line with water and when the surge of water was seen at the Vaccon location we knew we captured the sewer. We drained our Vaccon One time approx 600 gallons of sewer to the Sewer System. We used our tank pump off to allow room for more and our debris tank is 1200 gallons	We used to time we were called out to the location 5:22 pm and the time we cleared the surcharged 6:22pm.   60 mins of Overflow at 25GPM = 1500 Gallons 	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		55	The spill Impact was minimal since we were able to capture the spill and return it to the sanitary sewer system	N	Returned All Spill to Sanitary Sewer System		Spill entered a Catch basin on N. Winchester Blvd that entered the storm system and followed N. Winchester Blvd North to Homestead Rd.   The flow then turned East onto Homestead Rd and flowed to Madison Ave.  On Madison Ave the flow headed North to Benton Ave.  At Benton Ave the flow turned and headed east 197' where we captured the spill with our Combo Vaccon truck	Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause		We are to CCTV location and possible add to Preventative Maintenance Program	11/2/23 we are to CCTV location and determine if location needs repair and/or add to Preventative Maintenance Program	10/31/2023 01:20	CCTV will investigate sewer main and sewer techs will investigate other sewer manholes for FOG build up and try to trace back the location of the FOG source. if we find the FOG source we will contact our FOG compliance and have them reach out to the offender(s)	Y	Need to determine the source of the FOG 	11/03/2023 15:00										N												Need to determine the source of the FOG 	
4	4SSO11423	Active	Long Beach Water Dept. CS (SSO program)	Long Beach City, Water Dept	891096	1.2	Certified	Jennifer Rojas	Senior Director 	01-NOV-23	03-NOV-23	03-NOV-23	Category 1 Spill	6550 E. Marina Dr. Long Beach CA 90803	10/28/2023 13:03	10/28/2023 13:45	10/28/2023 12:30	10/28/2023 14:36	23-6766		The lateral clean-out located at the marina, is the closest location to the point of failure. This clean-out serves as a point of access to maintain the sewer lateral connecting to the public restrooms. The spill left the system and entered the city curb and gutter, with approximately 100 gallons contained on the street. Additionally, 50 gallons entered the conveyance system where it was contained. The remaining 1,650 gallons entered a separate catch basin, which leads directly into the marina. 	33.75653	-118.11183	Lateral Clean Out (Public); Manhole		The Spill originated from a City sewer manhole at 6550 E. Marina Dr. S04-SMH-029; it is not the closest appearance point to the point of failure. 	1800	2 Appearance points: 1. Sewage overflowed from a city sewer manhole, traveled down the gutter, and entered the Long Beach storm drain catch basin. It then flowed down the storm drain pipe into the Marina ( Alamitos Bay). 2. Sewage overflowed from the lateral clean-out public and, entered the Long Beach Storm drain catch basin, and flowed down the storm drain pipe into a storm drain manhole, where it was contained and fully recovered by Ocean Blue.	Y	There were two conveyance systems involved in the incident. The conveyance system closest to the clean-out received 150 gallons of sewage, which was fully recovered. However, the catch basin closest to the sewer manole flowed directly out to the marina and was not recovered. As a result, sewage overflowed from the city sewer manhole and entered the storm drain catch basin. From there, it flowed down the storm drain pipe into the Marina.	50	0	The conveyance system in this area consists of a storm drain catch basin that connects to a storm drain pipe. This system is designed to transport rainwater directly into the Marina.	1650	150	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		This event consisted of one blockage, which resulted in a sewer spill at two locations of appearance. At spill appearance point 1, the spill left the system and entered the city curb and gutter, with approximately 100 gallons contained on the street. Fifty gallons entered the conveyance system located on Marina Dr., and all 150 gallons were recovered by Ocean Blue Environmental. The remaining 1,650 gallons entered a separate catch basin at spill appearance point two. This catch basin has a short segment of pipe that leads directly into the marina. This sewage was not recovered.	Y	33.75336	-118.1095							10/28/2023 14:34	Sewage overflowed from City Sewer Manhole S04-SMH-029 at approximately 10 gallons per minute (gpm). I used a spill estimation chart to approximate the amount of gallons coming out. Then, I multiplied that by the number of minutes, the spill was active to determine the total amount spilled.	After speaking with the manager of San Pedro Fish Market and reviewing the video provided, it has been determined that the spill began approximately 30 minutes before the video was recorded. The video was taken at 1:01 p.m., so we estimate that the spill started at approximately 12:30 p.m. 	Damage by Others Not Related to Collection System Construction/Maintenance; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		66	Approximately 100 gallons of sewage spilled onto the street, posing a health risk to pedestrians and causing environmental contamination if not properly cleaned. Ocean Blue completed a clean-up of the area and recovered the spill. Fifty gallons entered the conveyance system on Marina Dr., which can potentially lead to the ocean but was contained and recovered. All 150 gallons were contained and recovered, but the remaining 1,650 gallons entered a separate catch basin leading to Alamitos Bay, impacting marine life and water quality.	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		1. Spill Containment:     - At spill appearance point 1, where approximately 100 gallons of sewage spilled onto the street, containment measures were implemented to prevent further spread. Barriers were deployed to contain the spill within the affected area.     - For the 50 gallons that entered the conveyance system on Marina Dr., containment measures were also implemented to prevent further discharge into the ocean. Dams were used to contain the spill and prevent it from reaching the water of the state. 2. Cleanup Efforts:     - Ocean Blue Environmental immediately initiated cleanup operations for the spill on the street. The 100 gallons of sewage were promptly cleaned up using pressure washers and a vacuum truck.     - To address the 50 gallons of sewage that entered the conveyance system, cleanup activities were conducted to recover the spilled sewage. Ocean Blue Environmental used a vacuum truck to flush the system, removing both sewage and nuisance water.	Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause		The following major milestones have been identified for the corrective action plan: -FOG Inspections by the Long Beach Health Department     - Target Start Date:10/31/2023     - Actions: Perform inspections on nearby restaurants to identify FOG-related concerns. - Addressing FOG Concerns at PCH & 2nd Outdoor Mall     - Target Completion Date: 11/1/2023     - Actions: Collaborate with the operations manager to ensure regular cleaning of interceptors and proper management of FOG. Utilize CCTV inspection equipment to identify the source of FOG and conduct more frequent inspections. - Emergency repair due to possible cross bore in the sewer mainline not caused by CS.      - Target Completion Date: 11/30/23     -Actions: Monitor and clean the main until repairs are complete  Collaboration with the Long Beach Health Department to ensure compliance. This segment of the pipeline is also included in our 90-day repeat cleaning schedule. We will ensure proper cleaning practices by staff.	The major milestones for the corrective action plan include pipeline inspections and FOG inspections by our Long Beach Health Department team. These actions were initiated yesterday, on 10/31/2023, and will continue until 11/1/2023. The pipeline inspections aim to assess the condition of the sewer system and identify any potential issues or blockages. The FOG inspections conducted by the Long Beach Health Department team will help identify FOG-related concerns and address them accordingly.	10/28/2023 17:25	The sewer spill occurred due to a grease blockage in the sewer system. This hindered the flow of sewage, causing an overflow onto the street and into the conveyance system. A CCTV inspection was conducted to locate the blockage, revealing a cross bore protruding through the center of the 12  mainline, obstructing the flow. This finding will be escalated to the engineering team as an emergency. Immediate action was taken using hydro-jetting equipment to remove the blockage and restore normal sewage flow. The presence of grease indicates potential issues related to fats, oils, and grease (FOG). Restaurant inspections have been scheduled in the area.	N			Pacific Ocean via Marina	Ocean		Alamitos Bay is an inlet on the Pacific Ocean coast of southern California, United States, between the cities of Long Beach and Seal Beach, at the outlet of the San Gabriel River. It is near Los Angeles. It is located in Long Beach, California. It offers a variety of recreational activities, including boating, kayaking, and stand-up paddleboarding. With its calm waters and beautiful surroundings, Alamitos Bay is a popular destination for locals and tourists alike. The bay is also home to several marinas, providing boat owners with convenient access to the water.	No visual impact on aquatic life was noted during the investigation and assessment of the sewer spill.	Temporary Restricted Use	The parking lot, which had contaminated water, was isolated for clean-up efforts. Once the clean-up efforts were completed, this area was reopened.	Long Beach Environmental Health Department	0	N	N												
2	2SSO10179	Active	San Jose City CS	San Jose City	891098	1.2	Certified	Ben Nguyen	Senior Engineer	31-OCT-23	31-OCT-23	31-OCT-23	Category 2 Spill	7185 Lindsay Creek Lane, San Jose CA 95120	09/10/2023 20:00	09/10/2023 20:15	09/10/2023 19:30		-		City crew was notified of a plugged lateral. City crew arrived, discover plug in main, attempted (but not sucessful) to check the private cleanout, and clear the plug. Crew attempted to contact RP, but RP was refused crew's access onto the property.  	37.1993	-121.84459	Lateral Clean Out (Private)			2618	RP let crew know that spill was from a building clean out, but RP did not allow crew onto private property. RP was later provide photo of building cleanout on side of the house. 	N	Water did not reached a storm drainage system.  RP let crew know that water inside private property was cleaned up by ServePro service; and some water was let out of a cleanout by side of the house and was assumed to percolate.  Crew was not allowed to take picture or video at the time of responding to the event. Water did not reach creek near by. 					1621	Building or Structure; Unpaved Surface	Water was spilled inside the private home which was cleaned up by ServePro. Some water was spilled outside of the house was assume to be percolated.  	Spill was spilled inside the private home and to the side of the house which was unpaved. 	N									09/10/2023 20:30	Crew was not allowed to enter private property.  ServePro, cleaning up service, let City know dimension of the house was about 650 sf with 4 inches of water.  Spilled water outside of the home was assumed.  No measurement was made by crew. 	Volume inside the home was estimated based on ServePro's information.  Volume outside of the home was assume and estimated.  	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		38	Spill caused damage to private home on the first floor. Water did not reached public storm drain nor natural creek. 	N	Restored Flow		Crew discovered and cleared plug.  The main was holding but water did not spill out of the manhole.  RP did not allow City's crew enter private property. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Staff will revise the maintenance schedule after re-video in 3 months.  	Will re-video the segment in three months. 	10/05/2023 23:00	RP did not allow City staff to enter the property to collect data such as to observe and take picture or perform measurement.  Information was provided by PR's cleaning service ServePro.  Crew identified cause was grease.  Volume was estimated based on ServePro's information.  RP provided a picture on the side of the house where the clean out was located and told crew that some water flow out from here.  	N												N													
3	3SSO10252	Active	Santa Cruz City CS	Santa Cruz City	891107	1.4	Certified	Anne Hogan	Wastewater System Manager	01-NOV-23	14-NOV-23	14-NOV-23	Category 2 Spill	147 Pryce St	10/30/2023 13:02	10/30/2023 13:20	10/30/2023 12:45		-		Sanitary sewer overflow occurred at manhole in Front of 147 Pryce St. (N 36.98409 W -122.025483), lateral clean out at 143 Pryce St. (W 36.9841043 W -122.025224), and lateral clean out at 147 Pryce St. (N36.9840635 W-122.0253722). Response to eliminate stoppage in sewer main was delayed by lack of access to manhole structures that had been removed and covered for asphalt overlay project. Photographs will not attach.	36.98409	-122.025483	Lateral Clean Out (Private); Manhole			1200	Sanitary sewer overflow occurred at manhole in Front of 147 Pryce St. (N 36.98409 W -122.025483), lateral clean out at 143 Pryce St. (W 36.9841043 W -122.025224), and lateral clean out at 147 Pryce St. (N36.9840635 W-122.0253722). Spill occurred in middle of roadway and sidewalk area flowing down curb and gutter. Overflow entered storm line at catch basin in front of 159 Pryce St. (N 36.9839556 W -122.0257543) leading directly to City of Santa Cruz storm water pump station (City of Santa Cruz Storm Station #3) located at W 36.978829 N-122.024191 next to 261 Water St. The storm water pumping facility was de-energized and spill was captured and contained within wet well and storm line leading to pump station prior to any pumping discharge. All contents of spill have been recovered and pipeline cleaned by City of Santa Cruz Wastewater Collection Crew using Vactor and Vaccon combo units.  Photographs will not attach.	Y	Overflow entered an 18'' concrete storm line at catch basin in front of 159 Pryce St. (N 36.9839556 W -122.0257543). The storm line then connects to is a 30'' diameter concrete pipeline extending approximately 800 feet leading directly to City of Santa Cruz storm water pump station (City of Santa Cruz Storm Station #3) located at W 36.978829 N-122.024191 next to 261 Water St. Photographs will not attach.	1200	0			1200	Other (specify below)	 City of Santa Cruz storm water pump station (City of Santa Cruz Storm Station #3) located at W 36.978829 N-122.024191 next to 261 Water St. 	Spill occurred in middle of roadway in front of 147 Pryce St. and sidewalk area flowing down curb and gutter. Overflow entered storm line at catch basin in front of 159 Pryce St. (N 36.9839556 W -122.0257543) leading directly to City of Santa Cruz storm water pump station (City of Santa Cruz Storm Station #3) located at W 36.978829 N-122.024191 next to 261 Water St. 	Y	36.978829	-122.024191	36.983955	-122.0257543					10/30/2023 02:11	Staff is trained annually in different spill estimation techniques. This spill estimate is based on measured area and volume calculations of ponded sewage sewage contained in roadway gutter and storm drain system with photo documentation.	Start time is confirmed by interviewing residents on site at spill. End time is verified by crew who cleared the blockage and cleaned the spill areas.	Debris from Construction		Manhole		Polyvinyl Chloride (PVC)		10	Recovery of spill required labor and equipment hours of sanitary sewer system collection maintenance team.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Spill was contained in dry paved street, curb and gutter and in storm drain system. Crews cleaned all wetted areas and flushed storm system, contained all spill and cleaning water in storm pump station. Crews used sewer  combination units to clean and empty storm station. All spill returned to sanitary sewer system.	Repaired Facilities or Replaced Defect		Construction debris removed. Manhole structures covered by in progress asphalt overlay project were restored to grade.	Complete	10/31/2023 15:00	Crew traced sewer system progressively upstream and confirmed flow until blockage revealed at upstream manhole. Debris removal resulted in resumption of flow in sanitary system.	N												N													
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	891108	1.5	Certified	Ameal McLaurin	Sewer Supervisor 2		02-NOV-23	02-NOV-23	Monthly Category 3 Spill	1000 Oak Street, Oakland Ca	10/28/2023 16:00	10/28/2023 16:30	10/28/2023 18:30				1 Lateral Clean Out (Private), it overflowed from floor drains inside the building basement.	37.79813	-122.26456	Lateral Clean Out (Private)	1 Lateral Clean Out (Private), it overflowed from floor drains inside the building basement.		133	It was contained inside the building basement	N						133	Building or Structure	It was contained inside the building basement	1 Lateral Clean Out (Private), it overflowed from floor drains inside the building basement. It was fully contained inside the building basement.										10/28/2023 16:00	Calculated volumes: Room: 20'L x 10'W x .01'D x 7.48-Gal = 15 Gallons Room: 20'L x 10'W x .01'D x 7.48-Gal = 15 Gallons Room: 22.5' x 14'W x .02'D x 7.48-Gal = 47 Gallons Room: 18'L x 9'W x .01'D x 7.48-Gal = 12 Gallons Hallway: 35'L x 5'W x .02'W x 7.48-Gal = 26 Gallons Hallway: 24'L x 5'W x .02'D x 7.48-Gal = 18 Gallons Total spill: 15 + 15 + 47 + 12 + 26 + 18 = 133 Gallons 	Start time was based on High Level Alarm from the wet well at the Lift Station. End time was based on responding crew when they fixed the pump to work and resume the flow operation.	Pump Station Failure - Mechanical		Pump Station - Mechanical		Other (specify below)	Pump failure	15	1 Lateral Clean Out (Private), it overflowed from floor drains inside the building basement. It was fully contained inside the building basement.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	Shape company technician checked and fixed the pump.	Spill was contained inside the building basement, personnel from the building cleaned up and returned the spill to the sewer system.	Repaired Facilities or Replaced Defect	Pumps were checked and repaired by Shape company technician.	Lift station is schedule to be checked every Friday. 		10/31/2023 14:00	Pump # 2 had a mechanical working failure. Pump company technician fixed the problem on 10/31/23. 		No	10/31/2023 14:00														N/A	Pumps were checked repaired on 10/31/23 by Shape company technicians.	Lift station is schedule to be checked every Friday. 	N/A	Pumps were checked repaired on 10/31/23 by Shape company technicians.	N/A	Pumps were checked repaired on 10/31/23 by Shape company technicians.	Lift station is schedule to be checked every Friday. 	No	
2	2SSO10155	Active	Millbrae City CS	Millbrae City	891109	1.1	Ready to Certify						Monthly Category 3 Spill	1250 Millbrae Ave	11/01/2023 09:11	11/01/2023 09:25	11/01/2023 09:00				Our investigation and excavations are ongoing. 	37.5891	-122.40644	Gravity Mainline			500	At this time, 500 gallons is an estimate. Our crews have relieved the blockage, and are excavating the hillside to see if we have a fractured pipe. 	Y	Our investigation and excavations are ongoing. 	500				500	Drainage Conveyance System		More information to follow. 										11/01/2023 09:50	500 is estimate right now. I have to return to the location and complete a more thorough inspection. 	500 is an estimate right now, our crews are digging out the hillside as i believe we have a fracture in our main. 	Pipe Structural Problem/Failure - Controls		Gravity Mainline		Vitrified Clay		30	Investigation is ongoing	N	Contained All or Portion of Spill; Mitigated Effects of Spill (specify below)		Our crews are currently excavation around the spill.	Plan Rehabilitation or Replacement of Sewer		Our crews are working on making the repair now.			Our investigation is ongoing but a tree over our shallow pipe may have caused a fracture allowing our main to weep. We will submit pictures and documentation shortly.  		Yes, our investigation is ongoing at this time. 	11/02/2023 12:02														No.	We will replace this main asap.	We are planning its immediate replacement. 	We are planning its immediate replacement.	We are planning its immediate replacement.	We are planning its immediate replacement.	We are planning its immediate replacement.	Re	Yes, our investigation is ongoing at this time. 	
5S	5SSO10993	Active	Manteca CS	Manteca City	891119	1.2	Certified	derek perry	Collections Supervisor 		28-NOV-23	28-NOV-23	Monthly Category 3 Spill	1109 VirginiaSt	10/29/2023 10:46	10/29/2023 11:12	10/29/2023 09:48				Spill occured at Manhole in the intersection of Virginia St and El Portal Ave.	37.79577	-121.23064	Manhole			760	Spill occord in the street and gutter pans entering two drain inlets to storm laterals that conect to a storm gravity main line. See Attachment	Y	Storm gravity main line w/ manhole sumps	729				760	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		See Attachment	Y	37.79558	-121.23241							10/29/2023 11:20	Spill volume calculated by Duration and flow rate comparison method	Plumber on scene was the first to see evedence of the spill.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		59	Spill discharged to hard surface(asphault and concrete) and strom water gravity main line w/ Manhole sumps.	N	Cleaned Up (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Called for vaccon to respond as soon as I recieved the call from the plumber. Arrived on scene and fornd dry manhole to jet from. 	Adjusted Schedule/Method of Preventive Maintenance		Increace previntative cleaning frequency from 6 month to 3 months.		10/29/2023 12:43	Will include at completion of investigation.		CCTV gravity mains.	12/31/2023 07:30														None	Increace previntative cleaning frequency from 6 month to 3 months.	From every 6 months to 3 months	None	CCTV Gravity main lines 	None	See Attachment	Sand bags for DI locations	CCTV gravity mains.	
5F	5SSO11068	Active	Tuolumne CS	Tuolumne City SD	891122	1.2	Certified	Ben Kikugawa	CPO/LRO		07-NOV-23	07-NOV-23	Monthly Category 3 Spill	MH A45	11/02/2023 10:35	11/02/2023 10:55	11/01/2023 15:02				Spillage appeared out of manhole A45, located in a paved roadway, and travelled approximately 30 feet along an unpaved driveway. 	37.95563	-120.23934	Gravity Mainline			61	Spillage ponded in two areas on the partially paved driveway. Spillage was beginning to flow over the edge of the driveway into a drainage channel as operators arrived on scene. That location was immediately dammed using surrounding earth. Inspection of the drainage bottom revealed the spillage had dissipated in weeds before making it to the bottom of the drainage.	N						45	Paved Surface; Unpaved Surface		Spillage travelled south, south-east approximately 30 feet from the appearance point. 37.955546, -120.239302. This location is mostly paved with an overlay of road base aggregate.	Y	37.95555	-120.23931							11/02/2023 11:12	1) Geometric measurements were gathered of ponded areas to determine volume of recovered spill - approximately 44.9 gallons 2) Approximately 100 gallons of potable water was used for spill cleanup and to replicate the spill impact area. 3) Observed flow rate out of the manhole was given a conservative rate (higher) of three gallons per hour. Spill duration from interviewing neighbors and an employed operator gave a maximum duration of 20.2 hours, giving a higher spill volume estimation of 60.6 total gallons. 	1) Neighbor's statement could not give exact starting time spill began.  2) Saturated soil from spillage cannot be quantified. 	Root Intrusion		Gravity Mainline		Other (specify below)	Asbestos Cement Pipe (ACP) 	53	Spill flooded the entrance to a residential private driveway. The driveway belonged to two residence who would have had to travel through the ponded spillage during ingress/egress.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Disinfected impacted area. All standing spill water was vacuumed and dumped in the WWTP Headworks grit chamber. 	While two operators worked to clear the blockage another operator used surrounding dirt to dam spillage from flowing into a drainage channel. A vac-truck was used to remove all ponding water. Approximately 100 gallons of potable water was used to dilute remaining spillage and wash off portions of the roadway that was in contact with sewage. The site was then disinfected using E-SAN 205. The driveway where the spill collected belonged to two residents. One resident was verbally notified and another was notified via written note, asking they contact the District for investigation purposes. 	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance		The downstream segment where roots were found will be added to a priority annual maintenance schedule, and will include more frequent hydro-jetting and root prevention chemical application (RootX). 		11/02/2023 12:39	Operators recovered a large root-ball following blockage clearing. The landscape above the failed pipe segment is a combination of thick vegetation comprising of trees, shrubs, and vines. Operator Colton McMullen stated he drove by the spill site the previous day just after 1500 hours. This would put the maximum spill duration at 20.2 hours. 		Still waiting to hear back from one neighbor. A business card was left on their door asking them to give the District a call. 	11/06/2023 15:00														N/A	The segment where the failure occurred will be added to a more frequent maintenance schedule.	Yes, annually.	While the District has a long term plan to replace the entire collection system, it will be at least 10 years before this basin is replaced. 	Root intrusion is common throughout the older parts of the entire collection system. The section where the blockage occurred will be added to a more frequent maintenance schedule until replaced. 	While this section was constructed approximately 53 years ago, there are other higher priority basins that are over 73 years old. The District is currently in the planning stages of replacing those older basins, and will then address the basin where this spill occurred. 	The District does not have a documentation system in place. Hot spots in the collection system are added to operator's computer calendar as a reminder to perform scheduled maintenance tasks. The District is in the process of purchasing and implementing a Computerized Maintenance Management Program that will generate scheduled work orders. That system is expected to be in place by October 2024. 	No modifications were made to the operators' response. 	Still waiting to hear back from one neighbor. A business card was left on their door asking them to give the District a call. 	
5S	5SSO11040	Active	Riverbank CS	Riverbank City	891128	1.4	Certified	Cody Bridgewater	Director of Public Works	03-NOV-23	08-NOV-23	08-NOV-23	Category 1 Spill	River Cliff Way	11/03/2023 10:22	11/03/2023 10:40	11/03/2023 10:20	11/03/2023 11:46	23-6885		Spill from MH adjacent to 2400 River Cliff way, into nearby storm drain, direct outfall to Stanislaus River	37.73639	-120.95344	Manhole			75	Spill reached the asphalt and storm drain approximately 10 feet from sewer manhole	Y	Storm drain system in River Cliff way	5	70	storm drain outfall located at end of Estelle Ave	70	5	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water		wastewater spill from SS Manhole near 2400 River Cliff way, entered into storm drain grate 10 feet south of manhole, flowed into storm drain that is direct outfall to Stanislaus River	Y	37.73639	-120.95344							11/03/2023 10:52	1  pickhole at 1  flow height = 2.5 gpm x 30 min = 75 gallons	start time assumed 2 minutes prior to phone call at 10:24, end time was 10:52 when vac truck relieved plug	Debris-Rags; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		50	Spill reached storm drain that conveys to Stanislaus River	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Washed down and disinfected asphalt, relieved plug, cleaned nearby sewer mains. sandbagged storm drain grate to prevent additional wastewater flow to storm system	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance		Increase cleaning frequency	immediately cleaned surrounding area to prevent future stoppages	11/03/2023 12:00	inspected hose and remaining material from sewer truck, excessive rag and grease build up	N			Stanislaus River	River		Stanislaus River	None	Other (specify below)	Not an area that can be accessed by the public	N/A	0	N	N												
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	891129	1.2	Certified	Daniel Whitlock	Manager		28-NOV-23	28-NOV-23	Monthly Category 3 Spill	Blair terrace	10/08/2023 13:12	10/08/2023 13:30	10/08/2023 13:07				Contractor dumped into manhole causing blockage. On 10-8-23 it was thought to be a   private  issue, upon further investigation, it was determined to be blocked in PUC manhole causing spill in private manhole. On 10-9-23 Staff arrived and began work cleaning and a SFPUC contractor removed concrete from manhole N-17475 and PUC main sewer P-80613 and private main sewer P-96624. Concrete came from outside contractor.	37.75091	-122.39987	Manhole			214	Manhole spilled approx. 100' to containment area of excavated sidewalk	N						214	Unpaved Surface		On 10-8-23 it was thought to be a   private  issue, upon further investigation, it was determined to be blocked in PUC manhole causing spill in private manhole. On 10-9-23 Staff arrived and began work cleaning and a SFPUC contractor removed concrete from manhole N-17475 and PUC main sewer P-80613 and private main sewer P-96624. Concrete came from outside contractor.	Y	37.75088	-122.39986							10/09/2023 14:25	Spill Area by Volume  See attachments.	Spoke with caller who confirmed there was minimal flow when she called.	Damage by Others Not Related to Collection System Construction/Maintenance; Debris from Construction	 	Manhole	Concrete in manhole	Vitrified Clay		40	Spill was contained approx. 100' from manhole.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Upon arrival, spill had contained itself in an excavated sidewalk where spill volume and soil was removed.	Other (specify below); Plan Rehabilitation or Replacement of Sewer	SFPUC contractor removed concrete from manhole and and main sewer.	SFPUC contractor removed concrete from manhole N-17475 and PUC main sewer P-80613 and private main sewer P-96624. Concrete came from outside contractor.		10/09/2023 15:25	SFPUC contractor removed concrete from manhole N-17475 and PUC main sewer P-80613 and private main sewer P-96624. Concrete came from outside contractor.		None	10/09/2023 15:25														NA	SFPUC contractor removed concrete from manhole N-17475 and PUC main sewer P-80613 and private main sewer P-96624. Concrete came from outside contractor.	NA	Repair Complete.  SFPUC contractor removed concrete from manhole N-17475 and PUC main sewer P-80613 and private main sewer P-96624. Concrete came from outside contractor.	SFPUC contractor removed concrete from manhole N-17475 and PUC main sewer P-80613 and private main sewer P-96624. Concrete came from outside contractor.	NA	On 10-8-23 it was thought to be a   private  issue, upon further investigation, it was determined to be blocked in PUC manhole causing spill in private manhole. 	Washed down/cleaned removed volume and soil from excavated area.	None	
5S	5SSO10868	Active	Arnold CS	Calaveras Cnty Water District	891130	1.3	Certified	Damon Wyckoff	Director Of Operations		03-NOV-23	03-NOV-23	Monthly Category 3 Spill	Fir Street at Meadowview Lane	11/03/2023 12:45	11/03/2023 01:00	11/03/2023 12:45				Manhole 155 near Fir Street at Meadowview Lane and HWY 4	38.240244	-120.362109	Manhole		None	500	Unidirectional boring crew hit a sewer lateral and filled the line with boring mud which then plugged the sewer main. Sewage in the plugged main then overflowed manhole #155.	N						500	Unpaved Surface		38.240244 x-120.362109	Y	38.240244	-120.362109							11/03/2023 13:45	visual assessment of flow rate at 5 GPM by Collections Crew Members - Estimated a worst-case scenario overflow of over an hour	Crews onsite where able to provide accurate estimates of the time because the PG&E sub caused the issue and immediately called Collections Crew members.	Damage by Others Not Related to Collection System Construction/Maintenance		Lower Lateral		Polyvinyl Chloride (PVC)		45	minimal. Crews onsite contained the spill, and District Collections Crew members then used a vactor truck to clean up the site	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		PG&E subcontractor who caused the spill called Collections Crew Members who responded immediately. While the Collections Crew was responding the Contractor dammed the site, Collections Crewmembers arrived on scene and used a Vactor Truck to suck up all the sewage and leaf litter. Sodium Hypochlorite was then used to disinfect the site.	Other (specify below)	Discussed improved coordination with Contractor	Discussed improving coordination with the PG&E sub-contractor and ensured the sub-contractor call to discuss anomalies before proceeding with boring.		11/03/2023 14:39	G&E subcontractor who caused the spill called Collections Crew Members who responded immediately. While the Collections Crew was responding the Contractor dammed the site, Collections Crewmembers arrived on scene and used a Vactor Truck to suck up all the sewage and leaf litter. Sodium Hypochlorite was then used to disinfect the site.		None necessary	11/03/2023 14:55														N/A	N/A	N/A	not currently	Repair was inspected and is acceptable. 	None Planned	email discussions with PG&E sub	None necessary	None necessary	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	891136	1.2	Certified	Kent Vian	Asst. Deputy Director	04-NOV-23	29-NOV-23	29-NOV-23	Category 1 Spill	NOT# 40201026998 10401 ROSELLE ST.	11/03/2023 02:32	11/03/2023 03:03	11/03/2023 02:31	11/03/2023 05:22	23-6876		THE SPILL ORIGINATED FROM THE MANHOLE SOUTHWEST OF 10427 ROSELLE ST. ALSO, DUE TO THE MAIN BACKUP, A SECOND SPILL APPEARANCE POINT WAS FROM A BATHROOM/LAUNDRY ROOM INSIDE 10427 ROSELLE ST. 	32.89412	-117.21898	Inside Building or Structure; Manhole	N/A	THE SECOND SPILL APPEARANCE POINT WAS FROM A BATHROOM/LAUNDRY ROOM INSIDE 10401 ROSELLE ST. (PARTY PALS).	3240	SEWER FLOWED OUT OF THE MANHOLE ONTO THE STREET, MADE IT'S WAY TO THE CURB AND GUTTER, INTO A STORM DRAIN AND INTO A STORM CONVEYANCE CHANNEL BEHIND 10575 ROSELLE ST.	Y	THE DRAINAGE CONVEYANCE SYSTEM HAD HEAVY VEGETATION WHERE THERE WAS POOLED UP WATER.	2400	628	THE DISCHARGE POINT WAS FROM AN OUTLET BEHIND 10575 ROSELLE ST.	0	0	Building or Structure; Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)	N/A	THE SEWER TRAVELED NORTHWEST, ENTERED A STORM DRAIN IN FRONT OF 10575 ROSELLE ST., AND THEN TRAVELED NORTHEAST ENTERING A STORM CONVEYANCE CHANNEL. ALSO SEWER ENTERED 10427 ROSELLE ST. THROUGH THEIR LATERAL INTO A LAUNDRY ROOM/BATHROOM AT 10427 ROSELLE ST.	Y	32.89719	-117.22015	32.89411	-117.21839					11/03/2023 05:13	SPILL VOLUME ESTIMATIONS WERE CALCULATED BY THE VISUAL CALCULATED METHOD. SPILL RECOVERY ESTIMATION WAS THE VOLUME OF LIQUID A COMBINATION TRUCK HOLDS.	SPILL START TIME WAS ESTABLISHED WHEN THE CONTRACTOR NOTIFIED DISPATCH. SPILL END TIME WAS WHEN I SAW NO SEWER LEAVING THE SYSTEM.	Damage by Others Not Related to Collection System Construction/Maintenance	N/A	Manhole	N/A	Vitrified Clay	N/A	61	THE IMPACTS OF THE SPILL WERE DAMAGES TO PROPERTY AT 10427 ROSELLE ST. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	SPILL RESPONSE ACTIVITIES INCLUDED CONTAINMENT AT THE MANHOLE PREVENTING SEWER TO OVERFLOW. CAPTURING SEWER FROM THE STORM CONVEYANCE CHANNEL. WASHING DOWN THE STREET, CURB AND GUTTER CAPTURING SEWER AND WATER.	Other (specify below)	REMOVED HARDEND ASPHALT FROM THE COLLECTIONS SYSTEM.	REMOVED HARDEND ASPHALT FROM THE COLLECTIONS SYSTEM.  	N/A	11/06/2023 08:48	SPILL WAS CAUSED BY A CONTRACTOR (HAZARD COMPANIES). WHILE OVERLAYING THE STREET, THE CREW KNOCKED OFF THE MH COVER, RESULTING IN ASPHALT BLOCKING FLOW IN THE SEWER SYSTEM.	N	N/A		N/A	Other (specify below)	N/A	N/A	NO OBSERVED IMPACTS ON AQUATIC LIFE.	Other (specify below)	NONE	N/A	0	N	N	N/A	N/A									N/A	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	891140	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		01-APR-24	01-APR-24	Monthly Category 3 Spill	3923 West 6th Street 	11/03/2023 18:45	11/03/2023 19:15	11/03/2023 18:45				The initial crew arrived at 7:15P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.06355	-118.310246	Manhole			518	None taken.	N	None.	0				518	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	34.063550  118.310246	Y	34.06355	-118.310246							11/03/2023 21:45	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.	Spill flowrate and volume determination based on flowout pickhole or opening 	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		55	It was estimated that approximately 518 gallons of sewage backed out of the sewer as a result of the blockage.  The crew was able to establish containment and subsequently returned the entire amount to the sanitary sewer system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		On Friday, November 03, 2023, at 06:45 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 3923 W 6TH ST (TG 633-2H). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 09:45 PM. The cause of the blockage was attributed to Grease/Debris accumulation. All necessary clean-up was then performed.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Repair Sewer Connection At 8feet From The Downstream Maintenance Hole, And Repair Maintenance Structure.		11/03/2023 21:45	Repair Sewer Connection At 8feet From The Downstream Maintenance Hole, And Repair Maintenance Structure.		None At This Time.	11/03/2023 21:45														None At This Time.	Pipeline Is On A Quarterly Maintenance Schedule.	Pipeline Is On A Quarterly Maintenance Schedule. Repair Sewer Connection At 8feet From The Downstream Maintenance Hole, And Repair Maintenance Structure.	Repair Sewer Connection At 8feet From The Downstream Maintenance Hole, And Repair Maintenance Structure.	Repair Sewer Connection At 8feet From The Downstream Maintenance Hole, And Repair Maintenance Structure.	None At This time.	Repair Sewer Connection At 8feet From The Downstream Maintenance Hole, And Repair Maintenance Structure.	Pipeline Is On A Quarterly Maintenance Schedule. Repair Sewer Connection At 8feet From The Downstream Maintenance Hole, And Repair Maintenance Structure.	None At This Time.	
1	1SSO10031	Active	Fortuna City CS	Fortuna City	891141	1.2	Certified	Jessie Suelzle	Lead		06-NOV-23	06-NOV-23	Monthly Category 3 Spill	Christian Ridge Manhole #1098	10/30/2023 12:24	10/30/2023 12:30	10/30/2023 12:00				Manhole number 1098	40.60445	-124.15719	Manhole			50	Estimated 50 gallons spilled out of manhole.	N						10	Unpaved Surface		Spilled into a grassy area of a hillside.	Y	40.60445	-124.15719							10/30/2023 15:00	Pictorial reference.	Pictorial reference supplied in our SSMP.	Debris-wipes/Non-disposables; Root Intrusion		Manhole		Polyvinyl Chloride (PVC)		30	Should be little to no impact.	N	Cleaned Up (specify below); Restored Flow		Spill was contained to the area of the manhole. All solids was collected and disposed of at the WWTP.	Other (specify below)	Removed all roots from manhole.	All residents on that line will receive letters about flushing baby wipes.		11/03/2023 10:00	Manhole was invaded by tree roots and baby wipes. Manhole was pumped out into another manhole and inspected. All roots and bay wipes were removed and pipe hydro jetted with root cutting head. 		Check manhole annually. 	11/03/2023 10:00														N/A	Check manhole monthly. 	Check manhole monthly.	N/A	N/A	N/A	Crew will be verbally advised to check manhole on a monthly basis. 	N/A	Check manhole annually. 	
4	4SSO10414	Active	Palos Verdes Estates City CS	Palos Verdes Estates City	891142	1.2	Certified	Robert Swartz	Sr. CE		14-NOV-23	14-NOV-23	Monthly Category 3 Spill	1543 (3120 V�a La Selva, Palos Verdes Estates)	10/23/2023 17:30	10/23/2023 19:30	10/23/2023 16:35				CSMD Map Sheet No. 1543 MMS No. 8504004 	33.80343	118.37711	Lateral Clean Out (Private); Other (specify below)	Sewage escaped thru two separate cleanouts. 		450	The estimated spill went into the crawl space and dissipated into the dirt, their backyard, and the ground. 	N						50	Building or Structure		The estimated spill went into the crawl space and dissipated into the dirt, their backyard, and the ground.	Y	33.80343	118.37711	33.80343	118.37737					10/23/2023 20:30	The start time is obtained from the reporting party, end time is when the crew clears the obstruction, and the overflow stops. 	CWEA SSCSC Manhole Gauge	Root Intrusion		Gravity Mainline		Vitrified Clay		18	personal property damage	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow		The mainline root blockage was cleared using hydro jet equipment, followed by cleanup, and notification of all necessary agencies. 	Inspected Sewer Using CCTV to Determine Cause		Mainline is currently on a preventive maintenance program and will be inspected to determine if any adjustments are needed. 		10/24/2023 00:00	Sewer will be inspected to determine if any adjustments or further actions are needed. 		Sewer will be inspected to determine if any adjustments or further actions are needed. 	12/23/2023 12:00														N/A	Mainline is currently on a preventive maintenance program and will be inspected to determine if any adjustments are needed. 	Mainline is currently on a preventive maintenance program and will be inspected to determine if any adjustments are needed. 	N/A	N/A	N/A	N/A	N/A	Sewer will be inspected to determine if any adjustments or further actions are needed. 	
9	9SSO10655	Active	City of National City CS	National City	891145	1.1	Certified	Martha Juarez	Assistant Director of Public Works & Engineering		22-NOV-23	22-NOV-23	Category 1 Spill	2300 block of Wilson Ave.	10/26/2023 13:22	10/26/2023 13:30	10/26/2023 13:48	10/26/2023 13:56	23-6742		Sewer mainline blockage. Location Map attached. Appearance point Manhole 927A.	32.661333	117.108139	Manhole			260	Spill surcharged manhole 927A.  Flow traveled south and into near storm drain pipe.  Spill was vacuumed at pump station and returned to main sewer line.	Y		150	110	N/A	0	0	Drainage Conveyance System		Spill surcharged manhole 927A.  Flow traveled south and into near storm drain pipe.  Spill was vacuumed at pump station and returned to main sewer line.	Y	32.661333	117.108139							10/26/2023 13:48	Volume estimated using spill duration and flow	Volume estimated using spill duration and flow	Root Intrusion		Gravity Mainline		Vitrified Clay		50	Impact was minimal since spill was vacuumed at pump station and returned to main sewer line.	N	Cleaned Up (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Spill was contained and cleaned up.  Flow was restored and portion of SSO was returned to sewer.	Other (specify below)	Flushed the main line to break stoppage, vacuumed the spill at pump station, and returned the water to the main sewer line.	Flushed the main line to break stoppage, vacuumed the spill at pump station, and returned the water to the main sewer line.	N/A	10/26/2023 14:00	Upon investigating, root intrusion was determined to be the cause of spill.	N			N/A	Other (specify below)	No water body was impacted by the spill.	No water body was impacted by the spill.	None	Other (specify below)	None	No water body was closed/restricted.	0	N	N												
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	891149	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	06-NOV-23	16-NOV-23	16-NOV-23	Category 1 Spill	6800 Gunn Drive, Oakland Ca	11/03/2023 07:44	11/03/2023 08:15	11/01/2023 07:00	11/03/2023 11:20	23-6884		Above ground Manhole was leaking sewage from the underneath the exposed barrel, and it was flowing to the gutter area, and to a separate storm drain that flows to Sausal creek.	37.83488	-122.19066	Manhole	From underneath the barrel of the above ground Manhole.		15150	Above ground Manhole was leaking sewage from the underneath the exposed barrel, and it was flowing to the gutter area, and to a separate storm drain that flows to Sausal creek.	Y	Storm drain that flows into an underground conveyance system named Sausal creek.	0	15150	Above ground Manhole was leaking sewage from the underneath the exposed barrel, and it was flowing to the gutter area, and to a separate storm drain that flows to Sausal creek.	15150	0	Drainage Conveyance System; Paved Surface		Above ground Manhole was leaking sewage from the underneath the exposed barrel, and it was flowing to the gutter area, and to a separate storm drain that flows to Sausal creek.	Y	37.83491	-122.19061							11/03/2023 09:30	10/31/23 7:00am to 8 pm=13hrs. x 60 min =780 min x GPM = 3900 Gal 10/31/23 8 PM to 11/1 23 6 AM = 10Hrs x 60 min = 600 min x 2GPM = 1200 Gal 11/1/23 6AM to 11/1/23 8PM =14Hrs x 60 Min =840 Minx 5GPM = 4200G 11/1/23 8PM to 11/2/23 6AM = 10Hrs x 60 Min =600 min x 2GPM = 1200 11/2/23 6AM to 11/2/23 8PM = 14Hrs x 60 = 840 Min x 5GPM =4200 Gal 11/2/23 8Pm to 11/3/23 6AM = 10Hrs x 60 Min =600 min x 2GPM = 1200 11/3/23 6Am to 11/3/23 9:30 AM = 3.5Hrs x 60 min =210 Min x 5GPM =1050 Gal Total spill: 3900+1200+4200+1200+4200+1200+1050= 16950 Gallons	Start time was based on eyewitness the caller. End time was based on the crew restoring the flow.	Pipe Structural Problem/Failure - Installation		Gravity Mainline		Other (specify below)	Corrugated metal pipe.	90	Above ground Manhole was leaking sewage from the underneath the exposed barrel, and it was flowing to the gutter area, and to a separate storm drain that flows to Sausal creek.	N	Cleaned Up (specify below)	Staff cleaned spilled area in the street.	Staff cleaned spilled area in the street.	Added Sewer to Preventive Maintenance Program; Plan Rehabilitation or Replacement of Sewer		CIP was requested to rehab main sewer line.	Line was placed on three months high frequency maintenance program.	11/03/2023 11:20	Corrugated metal pipe needs to be replaced.	N			Sausal Creek	Stream/Creek		Creek.	None.	Other (specify below)	None.	N/A	0	Y	N												
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District	891152	1.2	Certified	John J. Hough	San Dist. Superintendent	07-NOV-23	20-NOV-23	20-NOV-23	Category 1 Spill	334747	11/05/2023 07:49	11/05/2023 08:49	11/04/2023 11:00		-		See Attached Spill Map	38.7253	121.354	Lateral Clean Out (Public)			199	See Attached Spill Map	Y	See Attached Spill Map	140	0	See Attached Spill Map	50	145	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See Attached Spill Map	Y	38.7253	121.354							11/05/2023 08:49	See Attached Volume Estimation	See Attached Volume Estimation	Debris-General		Lower Lateral		Acrylonitr. Butadiene Styrene (ABS)		29	No observed impacts of spill	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified Sacramento County Department of Water Resources Drainage	See Attached Description of Events	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		SacSewer inspected the lower lateral with CCTV on November 5, 2023. Based on the findings, SacSewer will repair the lower lateral.� 	Repair Lower Lateral	11/05/2023 20:00	See Attached Description of Events	N			Unnamed Tributary to Dry Creek	Other (specify below)	pond tributary to Dry Creek.	The impacted surface water is on private land and not accessible to the public. The unnamed pond tributary to Dry Creek is an unlined pond that was stagnant.	No observed impacts to aquatic life	Other (specify below)	The impacted surface water is on private land and not accessible to the public.	N/A	0	N	N												
4	4SSO10434	Active	South El Monte City CS	South El Monte City	891157	1.1	Certified	Robert Swartz	Sr. CE		22-NOV-23	22-NOV-23	Monthly Category 3 Spill	2073 (2458 Strozier Avenue, South El Monte)	10/30/2023 17:15	10/30/2023 16:45	10/30/2023 16:48				CSMD Map Sheet No. 2073 MMS No. 8508370	34.05736	-118.04967	Lateral Clean Out (Private)			50	The spill escaped and dissipated into the soil around the cleanout. 	N						0	Other (specify below)	Dissipated into the soil around the cleanout.	The spill escaped from the cleanout and dissipated into the soil around the cleanout. 										10/30/2023 18:50	Visual or Eyeball Method	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops. 	Fats, Oil and Grease (FOG)		Gravity Mainline; Manhole		Vitrified Clay		45	N/A	N	Other Enforcement Agency Notified; Restored Flow		Upon arrival, observed signs of cleanout overflow in a planter box located in front of 2502 Strozier Avenue.  The spill escaped dissipated into the soil around the cleanout.  Hydro jet equipment was used to break down the heavy grease blockage in the mainline. Notified all necessary agencies.  	Other (specify below)	Will inspect sewer using CCTV.	Will inspect the mainline using CCTV to determine if further actions are needed.		10/30/2023 20:15	Will inspect the mainline using CCTV to determine if further actions are needed.		Will inspect the mainline using CCTV to determine if further actions are needed.	12/30/2023 12:00														N/A	N/A	Will inspect the mainline using CCTV to determine if further actions are needed.	N/A	N/A	N/A	N/A	N/A	Will inspect the mainline using CCTV to determine if further actions are needed.	
4	4SSO11365	Active	Unincorporated County Area CSMD South/County Sanitation District CS	Los Angeles Cnty DPW	891163	1.2	Certified	Robert Swartz	Sr. CE	07-NOV-23	14-NOV-23	14-NOV-23	Category 1 Spill	1588-0066 (6126 South La Brea Avenue, Los Angeles) Unincorporated County Area	10/31/2023 11:45	10/31/2023 12:15	10/31/2023 11:29		-		CSMD Map Sheet No. 1588 Manhole No. 66 MMS No. 8508745 Manhole No. 66 was overflowing.	33.98417	118.35762	Manhole	Manhole No. 66		400	Manhole No. 66 was overflowing onto the street.  A portion of the spill entered a storm drain at the N/E corner of 62nd Street and La Brea Avenue. 	Y	A portion of the spill entered a storm drain at the N/E corner of 62nd Street and La Brea Avenue. 	0	50	Manhole No. 66 was overflowing onto the street.  A portion of the spill entered a storm drain at the N/E corner of 62nd Street and La Brea Avenue, which leads to Centinela Creek.  	50	350	Drainage Conveyance System; Street/Curb and Gutter (2 3)		Manhole No. 66 was overflowing onto the street.  A portion of the spill entered a storm drain at the N/E corner of 62nd Street and La Brea Avenue. 	N									10/31/2023 12:45	Start time is obtained from the reporting party, end time is when the crew clears the obstruction, and the overflow stops. 	CWEA SSCSC Manhole Gauge	Root Intrusion		Gravity Mainline		Vitrified Clay		78	N/A	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Arrived to find Manhole No. 66 was overflowing. Used hydro jet equipment to clear the mainline root blockage, recovered portion of spill, returned it to the sewer system, and thoroughly cleaned the spill area. Promptly notified relevant agencies. 	Other (specify below)	The recommendation is to add sewer to a 90-day hydro preventive maintenance program.	The recommendation is to add sewer to a 90-day hydro preventive maintenance program.	N/A	10/31/2023 14:00	The cause of spill was due to roots in the mainline. Will add sewer to preventive maintenance program.	N			Centinela Creek / Ballona Creek	Other (specify below)	Creek	Manhole No. 66 was overflowing onto the street.  A portion of the spill entered a storm drain at the N/E corner of 62nd Street and La Brea Avenue, which leads to Centinela Creek.  	N/A	Other (specify below)	No impact.	N/A	0	N	N												
2	2SSO10158	Active	Mt. View SD CS	Mt View Sanitary District	891164	1.4	Certified	Lilia Corona	General Manager	07-NOV-23	08-NOV-23	08-NOV-23	Category 1 Spill	Pebble Creek Ct	11/02/2023 08:46	11/02/2023 08:55	11/02/2023 06:45	11/02/2023 10:13	23-6878		manhole on Pebble Creek Ct.  manhole ID # E07004	37.9918	-122.09322	Manhole			310	The spill occurred out of a manhole pick hole at a height of 3/4 inches.  It exited a shared driveway in a condominium complex and met the curb and gutter.  sewage traveled approx. 300ft before entering a storm drain.  the storm drain system discharges into Vine Hill Creek approx. 1000 ft. downstream of the storm drain.	Y	SSO entered storm drain on Pebble Creek Ct.  It could have traveled 1,000 ft before entering Vine Hill Creek.  The section of storm drain was flushed with 1,600 gallons of de-chlorinated water	0	0	see attachment photos	310	20	Drainage Conveyance System; Street/Curb and Gutter (2 3); Surface Water		storm drain and Vine Hill Creek	Y	37.9918	-122.09322							11/02/2023 09:06	the last resident noticed it was wet at 7 am.  we rolled back the time 15 min before a 0645 start time.  we estimated the spill volume using the  maintenance hole pick hole formula , as well as the  overflow rate from a manhole picture reference table .  spill volume recovery was the  eyeball method .  we flushed the storm system with 1600 gallons of de-chlorinated water.  hosed down the entire street/curb/gutter and vacuumed up all excess water.	start time was based on an investigation of the nearby residents and rolled back 15 min before the first person noticed the spill.  stop time was when we broke the blockage with our hydrojetter combo truck.	Damage by Others Not Related to Collection System Construction/Maintenance; Debris from Construction; Inappropriate Discharge to Collection System		Manhole		Other (specify below)	asbestos concrete pipe	35	this spill impacted the storm drain system and Vine Hill Creek	N	Cleaned Up (specify below); Restored Flow	returned a small portion (20 gall) and all wash down water back to the MVSD treatment plant.	upon arrival, Keith Raynor had already called a service truck to get in route to the scene.  the flow had already reached the storm drain upon arrival.  first responder took as many photos as possible until the service truck arrived.  broke blockage minutes later.  after the blockage was broken, more photos were taken, and then the wash down and vacuum of the area began.  CAL OES was called and investigation with the neighbors began.  flushing of the storm drain with de-chlorinated water (1800 gall) began after that.  signs were posted in 3 locations at Vine Hill Creek.	Other (specify below)	continuous monitoring of contractors on future paving projects making sure false bottoms are being used to ensure no construction debris enters the sewer system.	continuous monitoring of contractors on future paving projects making sure false bottoms are being used to ensure no construction debris enters the sewer system.	na	11/02/2023 14:30	spill cause was construction debris entering the sewer system from a paving project in the district. Debris consisted of asphalt from the City of Martinez' paving project.	N			Suisun Bay	Other (specify below)	Suisun Bay	Suisun Bay	None	Restricted Public Access		MVSD	5	N	N												
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	891174	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	07-NOV-23	09-NOV-23	09-NOV-23	Category 1 Spill	3514 Butters Drive, Oakland Ca	11/05/2023 10:59	11/06/2023 09:30	11/04/2023 22:00	11/06/2023 13:50	23-6932		Manhole on Easement was overflowing, the water flowed into a dry creek bed named 54th Avenue, Peralta, Courtland and Seminary creeks.	37.80639	-122.18239	Manhole			21600	Manhole on Easement was overflowing, the water flowed into a dry creek bed named 54th Avenue, Peralta, Courtland and Seminary creeks.	N				Manhole on Easement was overflowing, the water flowed into a dry creek bed named 54th Avenue, Peralta, Courtland and Seminary creeks.	21600	0	Other (specify below)	Manhole on Easement was overflowing, the water flowed into a dry creek bed named 54th Avenue, Peralta, Courtland and Seminary creeks.	Manhole on Easement was overflowing, the water flowed into a dry creek bed named 54th Avenue, Peralta, Courtland and Seminary creeks.	Y	37.80639	-122.18239							11/07/2023 11:30	2,160 minutes x 10 GPM = 21,600 gallons.	Start time was based on eyewitness first account of seeing overflow. End time was based on when responding crew removed the tree root from the manhole.	Root Intrusion		Manhole		Polyvinyl Chloride (PVC)		90	Manhole on Easement was overflowing, the water flowed into a dry creek bed named 54th Avenue, Peralta, Courtland and Seminary creeks.	N	Restored Flow		Sewer staff raked and cleaned area were spill occurred.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Sewer manhole was placed on six-month high frequency cleaning.	Sewer manhole was placed on six-month high frequency cleaning.	11/07/2023 11:30	Manhole on Easement was overflowing, the water flowed into a dry creek bed named 54th Avenue, Peralta, Courtland and Seminary creeks. Tree roots was the cause of the overflow.	N			54th avenue,Peralta, Courtland, Seminary Creek	Other (specify below)	Sewage spilled into a dry creek bed.	Manhole on Easement was overflowing, the water flowed into a dry creek bed named 54th Avenue, Peralta, Courtland and Seminary creeks.	None.	Other (specify below)	Area was posted.	N/A	0	Y	N												
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District	891177	1.2	Certified	John J. Hough	San Dist. Superintendent	07-NOV-23	20-NOV-23	20-NOV-23	Category 1 Spill	334781	11/06/2023 10:15	11/06/2023 10:38	11/06/2023 08:30		-		See Attached Spill Map	38.6677	-121.2367	Lateral Clean Out (Public)			58	See Attached Spill Map	Y	See Attached Spill Map	42	0	See Attached Spill Map	9	55	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See Attached Spill Map	Y	38.6677	-121.2367							11/06/2023 10:38	See Attached Volume Estimation	See Attached Volume Estimation	Debris-General		Lower Lateral		Acrylonitr. Butadiene Styrene (ABS); Vitrified Clay		55	No observed impacts of the spill	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified Sacramento County Department of Water Resources Drainage	See Attached Description of Event	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		SacSewer inspected the lateral with CCTV on November 6, 2023. Based on the findings, SacSewer will replace the cleanout riser on the lower lateral.	Replace the cleanout riser on the lower lateral.	11/06/2023 20:00	See Attached Description of Event	N			Arcade Creek	Stream/Creek		The impacted surface water is fenced and not accessible to the public. Arcade Creek is concrete-lined surface water that had moderate flow.	No observed impacts to aquatic life	Other (specify below)	The impacted surface water is fenced and not accessible to the public.	N/A	0	N	N												
4	4SSO10437	Active	Temple City CS	Temple City	891181	1.2	Certified	Robert Swartz	Sr. CE	16-NOV-23	01-DEC-23	01-DEC-23	Category 1 Spill	2071 (4937 Agnes Avenue, Temple City)	11/04/2023 12:00	11/04/2023 13:20	11/04/2023 10:15		-		CSMD Map Sheet No. 2071 MMS No. 8513525 	34.0929	-118.05222	Lateral Clean Out (Private)			900	The cleanout at 4937 Agnes Avenue was overflowing.  Part of the spill entered the storm drain in front of 9801 Golden West Avenue, while the rest dissipated onto the surrounding soil. 	Y	Part of the spill entered the storm drain in front of 9801 Golden West Avenue.	0	0	A portion of the spill entered a storm drain located in front of 9801 Golden West Avenue.	300	600	Building or Structure; Drainage Conveyance System that discharges to surface water; Groundwater Infiltration Basin or Facility; Unpaved Surface		Upon arrival, the clean-out at 4937 Agnes Avenue was overflowing.  A portion of the spill entered a storm drain located in front of 9801 Golden West Avenue.	Y	34.11802	-118.05876							11/04/2023 13:25	CWEA SSCSC Manhole Gauge	Start time is obtained from the reporting party, end time when the crew clears the obstruction, and the overflow stops. 	Root Intrusion		Gravity Mainline		Vitrified Clay		73	N/A	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow		Upon arrival, the clean-out at 4937 Agnes Avenue was overflowing. We utilized hydro jet equipment to clear the blockage and promptly notified all necessary agencies. Additionally, we conducted the necessary cleanup procedures. 	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Added sewer to a 90-day preventive maintenance program. 	N/A	11/04/2023 16:20	Inspected sewer using CCTV and found heavy roots in the sewer mainline. We included the sewer in a preventive maintenance program.  	N			Eaton Wash, Rio Hondo, Los Angeles River, Pacific Ocean	Ocean; Other (specify below); River	From the entry into the storm drain, the first waters of the US, water body, is Eaton Wash, which outlets to the next water body; Rio Hondo, before reaching the next water body; LA River; Final destination water body; Pacific Ocean.	From the entry into the storm drain, the first waters of the US, water body, is Eaton Wash, which outlets to the next water body; Rio Hondo, before reaching the next water body; LA River; Final destination water body; Pacific Ocean.	No impact.	Other (specify below)	No impact.	N/A	0	N	N												
1	1SSO11491	Active	Santa Rosa City CS	Santa Rosa City Utilities Dept	891022	2.4	Certified	Ron Marincic	Utility System Superintendent		09-NOV-23	09-NOV-23	Monthly Category 3 Spill	2979 Corby Ave	10/25/2023 17:25	10/25/2023 17:45	10/25/2023 17:20				Photos attached.  Spill appearance point was manhole at GPS coordinates above.	38.40552	-122.71648	Manhole			124	Spill exited a manhole at approximately 1-2 gpm.  Flow traveled approximately 705 feet to storm DI.	Y	Storm drain system.  Approximately 18.54 gallons was captured and removed.	8454				124	Paved Surface; Street/Curb and Gutter (2 3)		Spill exited a manhole at approximately 1-2 gpm.  Flow traveled approximately 705 feet to storm DI.		38.40552	-122.71648							10/25/2023 18:22	Calculation based on flow(gpm) of when the whiteness first saw spill.  Area and volume calculation from SERP.	Calculation based on flow(gpm) of when the whiteness first saw spill.  Area and volume calculation from SERP.	Damage by Others Not Related to Collection System Construction/Maintenance	Boring by telecommunications company.	Gravity Mainline		Other (specify below)	AC pipe.	54	Minimal impact.  All liquid, no solids.  Spill vacuumed and rinsed.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Spill was contained to gutter and storm drain.  Blockage was cleared and area including storm drain was cleaned/vacuumed.	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Cleared blockage, CCTV'd pipe.  Found that pipe had been bored through by telecommunications company.  Going to monitor until encroachment officers can have company make repairs, or we will conduct repairs in house.	Cleared blockage, CCTV'd pipe.  Found that pipe had been bored through by telecommunications company.  Going to monitor until encroachment officers can have company make repairs, or we will conduct repairs in house.		10/25/2023 18:00	Spill was caused by a communications company boring through sewer main.  Staff will be working with City Encroachment to identify and hold responsible, the correct contractor.		Will continue to monitor main while working with encroachment to identify responsible party.  Will make repairs if needed.	10/27/2023 10:22														Cleared blockage, CCTV'd pipe.  Found that pipe had been bored through by telecommunications company.  Going to monitor until encroachment officers can have company make repairs, or we will conduct repairs in house.	none.	none.	Working with encroachment to make repairs.	Inspected asset to find boring through pipe.  UPDATE.  Contractor has repaired sewer main.	none.	none.	none.	Will continue to monitor main while working with encroachment to identify responsible party.  Will make repairs if needed.	
2	2SSO10102	Active	Calistoga CS	Calistoga City Public Works Dept.	891196	1.2	Certified	David Fradelizio	Associate Engineer	09-NOV-23	22-NOV-23	22-NOV-23	Category 2 Spill	Lincoln Avenue Apartments - 1866 Lincoln Ave	11/07/2023 14:15	11/07/2023 14:15	11/07/2023 11:00	11/09/2023 11:20	23-6996		Spill originated at an accidental sewer line break in the road near 1507 Lincoln Ave. 	38.58033081	-122.57813951	Gravity Mainline	Approximately 2,000 gallons of the spill was discharged back to the sewer and 2,000 gallons was trucked by the contractor to a bioretention unit at 1866 Lincoln Ave. Some of this included groundwater which was already present in the excavated trench. The trench had about an 8 ft depth of groundwater. Trench was about 3 ft wide by 14ft deep by 15 ft long.  	The contractor did not notify the City of the break. City staff were already at the construction site for routine inspections, when they noticed a truck discharging soapy water to the bioretention unit at 1866 Lincoln Ave. City staff then found the contractor rerouting sewer water from the line break location back into the sewer system.  	4000	The discharged water overflowed from the bioretention unit into an adjacent infiltration trench. It did not reach any surface waters. Photos are on a phone that belongs to an engineer that was unavailable for this report. Photos will be submitted with the final report.	N	Sewer water was trucked to bioretention at 1866 Lincoln Avenue. Photos will be submitted with the final report.  	2000	2000			2000	Groundwater Infiltration Basin or Facility; Other (specify below)	Half of the spill was re-routed back into the sanitary sewer system.	Approximately 2,000 gallons of the spill was discharged back to the sewer and 2,000 gallons was trucked by the contractor to a bioretention unit at 1866 Lincoln Ave. 	Y	38.585514	122.576131							11/07/2023 16:00	Spill volume estimations were based on pipe size and duration of the spill event. The Hazen-Williams gravity flow calculation method was used. We assumed the flow filled 10% of the pipe volume, based on visual assessment. The truck that carried the 2,000 gal to the bioretention had a 2,000 gal volume capacity. The truck took two trips to the bioretention. We assume that approximately half of the total volume was sewage and half was groundwater. 	City staff knew the contractor's working hours. For the volume calculations, the City assumed that the break began at the start of the work day. 	Construction Diversion Failure		Gravity Mainline		Vitrified Clay		58	Raw sewage entered the trench, comingled with groundwater, and potentially seeped into the soil at the pipe break. It also infiltrated into the soil at the trucked location. 	N	Other (specify below); Returned Portion of Spill to Sanitary Sewer System	City is requiring contractor to remove and properly dispose of bioretention soil. 	Contractor diverted a portion of the flow back into the sanitary sewer. The water was pumped out until all water was removed from the sewer trench. 	Other (specify below); Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect	Stop work order against contractor. 	Contractor has been notified to submit third party inspection resume and contract for review before work can resume. 	City is awaiting contractor submittals, which are anticipated November 27, 2023. 	11/09/2023 16:30	Contractor broke the sewer line based on a set of construction documents that were not approved by the City, and were labeled  Not for Construction . Contractor was trying to replace the sewer line, but it was in a place that they did not expect it to be.  	N												N													
8	8SSO10617	Active	Eastern Municipal Water District CS	Eastern Municipal Water District	891200	1.1	Certified	Ken Tagney	Director of Water Reclamation		28-NOV-23	28-NOV-23	Monthly Category 3 Spill	17146 Rojo Tierra, Moreno Valley	11/09/2023 13:06	11/09/2023 13:45	11/09/2023 13:06				There was one spill appearance point at Manhole 38025. 	33.87301	-117.21013	Manhole			79	The spill flowed west on Rojo Tierra towards Lasselle street. It flowed on the street and then in the curb gutter until in reached a storm drain box. The storm drain box is where the flow stopped due to the amount of debris in the box. 	N						79	Other (specify below); Street/Curb and Gutter (2 3)	Storm Drain box. 	Storm drain box near the intersection of Rojo Tierra and Lassesse Street. 										11/09/2023 13:45	The SSO had stopped by the time EMWD crews arrived on site so crews used volume calculations for the extent of the spill on the street, curb gutter and storm drain box to determined the total volume. 	512'x.166'x.008'=.629Ft^3 x 7.48Gallons= 5 Gallons-Curb/Gutter 5'x6'x.33'= 9.9Ft^3 x 7.48Gallons= 74 Gallons- Storm Drain Box	Debris from Construction		Manhole		Polyvinyl Chloride (PVC)		17	EMWD had to clean up the street, curb gutter and storm drain box. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned All Spill to Sanitary Sewer System		Us a vactor truck to pick up spill material and washdown water. Crews used high pressure water to clean the affected area. 	Other (specify below)	Contractor should not leave sewer laterals open while trenching. 	Contractor should not have left the lateral exposed to dirt. 		11/09/2023 15:10	A non EMWD contractor left sewer later open while trenching allowing dirt to enter the sewer main line causing the back up. 		No. 	11/09/2023 15:10														None.	No. 	No. 	No. 	No. 	No. 	None. 	None. 	No. 	
4	4SSO10416	Active	Pasadena City CS	Pasadena City	891203	1.5	Certified	Brent Maue	Assistant City Engineer		13-NOV-23	13-NOV-23	Category 2 Spill	Fair Oaks and Del Mar	11/08/2023 14:00	11/08/2023 14:30	11/08/2023 13:30	11/09/2023 12:00	23-6968		Pasadena Water and Power contractor, Perry Thomas, was performing excavation for utilities at the northeast corner of Fair Oaks and Del Mar Blvd when they inadvertently hit a sewer main. 	34.14049	-118.15032	Gravity Mainline			20000	Spill occurred at the northeast corner of Fair Oaks and Del Mar, and due to the severity of the impact and amount of sewage released until repair, some of the sewage was unable to be captured and travelled along the northerly gutter, entering the City's MS4 system at the northeast catch basin at the intersection of Raymond Ave and Del Mar.	Y	Sewage released until repair, some of the sewage was unable to be captured and travelled along the northerly gutter, entering the City's MS4 system at the northeast catch basin at the intersection of Raymond Ave and Del Mar.	20000	0			20000	Drainage Conveyance System that discharges to surface water		Spillover from the incident at Fair Oaks and Del Mar entered the northerly gutter and traveled downstream, entering the City's MS4 system at the northeast catch basin at Raymond and Del Mar.  It remained contained in the City's conveyance system, confirmed to not to have extended to the County's downstream BI 0583 - Line B, nor further to the Alhambra Wash.	Y	34.14778	-118.14452							11/08/2023 17:30	Spill volume was calculated by comparing a similar pump used by the contractor which was estimated to pump around 150gpm for ~2 1/2 hours, with a 10% expected decline in efficiency given the age of the model.    So:             150gpm x ~150 min = 22,500 gallons            (-10% decline for age)  =  -2,250 gallons            Amount spilled = 20,250 or ~20,000 gallons   Given the immediate response, hydrojetting and vactor truck removal it is believed that the full extent of the spill that entered the catch basin/MS4 system (~20,000 gallons) was collected.  The remaining spill was contained above/below the street by City vactor trucks and returned to the sanitary sewer system.	Spill volume was calculated by comparing a similar pump used by the contractor which was estimated to pump around 150gpm for ~2 1/2 hours, with a 10% expected decline in efficiency given the age of the model.    So:             150gpm x ~150 min = 22,500 gallons            (-10% decline for age)  =  -2,250 gallons            Amount spilled = 20,250 or ~20,000 gallons  	Damage by Others Not Related to Collection System Construction/Maintenance		Gravity Mainline		Vitrified Clay		112	Spill resulted from a damaged sewer main, resulting in necessary repairs to the City's sewer line at Fair Oaks and Del Mar.  Contractor replaced the concrete and performed street improvements to repair structural damages.  City staff and resources were utilized to hydrojet and vactor remaining spill in the City's MS4 system.  All impacts were mitigated and the City's systems were restored appropriately.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Upon notification, City alerted Pasadena PD, and engineering staff, , compliance inspectors, and street service staff arrived on site to assess the damage, conduct proper traffic control, and ensure that proper spill procedures were being followed.  Once the spill was contained in the street and repairs were made the City addressed the spillover to the MS4 by use of City water and vactor trucks and staff under the supervision of the City's stormwater and street/sewer administrators and City Engineer.  OES was notified, CIQWS report was drafted and submitted and Pasadena Public Health was notified of the spill.	Repaired Facilities or Replaced Defect		As this was an accident and not a system or maintenance failure, the City has  not enforced any corrective actions on City staff and/or procedures.  City staff acted appropriately to contain the spill, report the spill as required, and provide proper clean up actions to ensure that the spill was collected, returned to the sanitary sewer system, and did not impact another downstream agency or impact a water of the US.  However, the City will provide additional information to non-City contractor's on the appropriate steps to take, including proper communication channels, when permits are given to ensure contractors are properly educated on the impacts of sewer spills to city streets and storm drain conveyance systems.	January 2024.	11/09/2023 14:30	Pasadena Water and Power's contractor, Perry Thomas, was performing excavation activities when they struck a gravity main with their excavation equipment causing a sewer line break.  City staff noted that the contractor exceeded City requirements to perform hand digging efforts when below 6ft as the sewer lines are located 7-9 feet below grade, and main breaks such as what happened can be caused.  PWP was notified of what City inspectors noted, and a follow up meeting with PWP will be had to discuss how to prevent this type of incident in the future. 	N												N													
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	891206	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		02-APR-24	02-APR-24	Monthly Category 3 Spill	10815 West Rose Avenue	11/10/2023 07:53	11/10/2023 08:17	11/10/2023 07:53				The initial crew arrived at 8:17A.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.025398	-118.416186	Manhole			60	None.	N	None.	0				60	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	34.025398  118.416186	Y	34.025398	-118.416186							11/10/2023 08:40	Spill flowrate and volume determination based on flowout pickhole or opening 	Diameter of pickhole or opening1inches Height of water out of pickhole/opening0.125inches Flowrate per pickole/opening (gpm)1gpm # of pickholes/openings1 Total flowrate (gpm)1gpm Duration of spill (minutes)47minutes Total flow (gallons)60gallons 	Root Intrusion		Gravity Mainline		Vitrified Clay		83	It was estimated that approximately 60 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		On Friday, November 10, 2023 at 7:53 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 10815 West Rose Avenue (TG 672-E1). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 8:40 AM. The cause of the blockage was root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 60 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		The Pipeline Is On A Semi-Annual Maintenance Schedule, And Repairs Are Still On Going As Of January 8, 2024. 		11/10/2023 08:40	A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 8:40 AM. The cause of the blockage was root intrusion.		Not At This Time.	11/10/2023 08:40														None At This Time.	The Pipeline Is On A Semi-Annual Maintenance Schedule, And Repairs Are Still On Going As Of January 8, 2024. 	The Pipeline Is On A Semi-Annual Maintenance Schedule, And Repairs Are Still On Going As Of January 8, 2024. 	The Pipeline Is On A Semi-Annual Maintenance Schedule, And Repairs Are Still On Going As Of January 8, 2024. 	The Pipeline Is On A Semi-Annual Maintenance Schedule, And Repairs Are Still On Going As Of January 8, 2024. 	None At This Time.	The Pipeline Is On A Semi-Annual Maintenance Schedule, And Repairs Are Still On Going As Of January 8, 2024. 	On Friday, November 10, 2023 at 7:53 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 10815 West Rose Avenue (TG 672-E1). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 8:40 AM. The cause of the blockage was root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 60 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	Not At This Time.	
5F	5SSO10737	Active	Kern Sanitation Authority CS	Kern County Public Works Department	891207	1.5	Certified	jesus uribe	Wastewater Specialist		13-NOV-23	13-NOV-23	Monthly Category 3 Spill	manhole #518	11/08/2023 15:30	11/08/2023 16:30	11/08/2023 12:00				a blockage in the line caused sewer to back up and spill out of manhole #518 	35.33375	-119.01524	Manhole			418	spill came out of manhole and ran down a long stretch of road but maintained within sidewalk curb.  	N						418	Paved Surface; Street/Curb and Gutter (2 3)		spill traveled down sidewalk curb. water barriers were placed to keep flow from traveling into storm drain. 		35.33429	-119.01558							11/08/2023 17:30	the line is low flow and I calculated the area where spilled sewage was collecting.  	got notified by road dept. about spill at 3:30, spoke with residents near the spill area and was told spill was noticed roughly around noon. 	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		30	no impacts occurred due to spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		I got to location and put some flood barriers on spill way to stop flow from continuing further. used hydrovac to relieve stoppage. afterwards used vacuum on hydrovac to vacc. all spilled sewage then sprayed area with disinfect.   	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		put sewer line segment on a hotspot list were it will be cleaned several times a year to maintain FOG		11/08/2023 19:00	NA		NA	09/15/2023 20:30														NA	line to be televised to identify cause of stoppage	line to be cleaned every 3 months 	NA	line to be televised	NA	NA	NA	NA	
3	3SSO18100	Active	Los Osos Water Recycling Facility CS	County of San Luis Obispo Dept. of Public Works	891214	1.1	Certified	Sean Loveridge	Wastewater Worker III		13-NOV-23	13-NOV-23	Monthly Category 3 Spill	Solano Lift Station	11/04/2023 12:05	11/04/2023 12:40	11/13/2023 06:00				Blow off valve slow leak from stem 4' under road.  Daylighted slowly leaking about 100mL/min	35.316571	120.853656	Force Main			50	Note in photos, water dried off street in morning sun.  Any amount more seeping out was drying upon daylighting. 	N						0	Paved Surface		Same coordinates as above. 	Y	35.316571	120.853656							11/04/2023 12:30	After valve box was fully vacuumed out, you could see some light seepage coming from valve stem.  Approx 100mL/min.  Could have been less. 	Spill start estimated from water marks in street and passerby that said they'd noted it earlier in the morning while walking their dog but couldn't pin down the exact time other than  earlier .  Didn't think anything of it or to report it.  Water stains in street told a story of very light leakage.	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure		Air Relief Valve (ARV)/ Blow-Off Valve (BOV)		Polyvinyl Chloride (PVC)		10	No impact.  	N	Returned Portion of Spill to Sanitary Sewer System		Vacuumed up contents of valve box ~ 10 gallons of a shop vac, and dumped in nearby wet well.  Allowed us to visualize the leak. 	Adjusted Schedule/Method of Preventive Maintenance		Valve exercising and routine checking.		11/13/2023 09:56	Blow off valve was determined to have a slow leak once box was cleared.  Leak was remedied by closing valve entirely.  It must have been left open during last PM of valve exercising. 		Will check valve box weekly for signs of leakage	11/04/2023 01:30														None	None	Complete work orders to exercise valves as they are ordered. 	None	Inspected blow off valve to remain shut.  Only opened at times of heavy maintenance.  Leak is small enough that opened for a short time, will not result in substantial spillage.	None	None	None	Will check valve box weekly for signs of leakage	
4	4SSO10366	Active	Baldwin Park City CS	Baldwin Park City	891217	1.2	Certified	Robert Swartz	Sr. CE		14-DEC-23	14-DEC-23	Monthly Category 3 Spill	2215 (3635 Stichman Avenue, Baldwin Park)	11/03/2023 18:50	11/03/2023 20:30	11/03/2023 18:00				CSMD Map Sheet No. 2215 MMS No. 8512545	34.07964	-117.95947	Lateral Clean Out (Private)			75	The spill escaped and dissipated into the soil around the cleanout.	N						0	Other (specify below)	The spill dissipated into the soil around the cleanout.	The spill escaped and dissipated into the soil around the cleanout.	Y	34.07964	-117.95947							11/03/2023 20:35	CWEA SSCSC Manhole Gauge	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		58	N/A	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow		Upon arrival, noticed signs of a clean-out overflow on the property 3635 Stichman Avenue, with the spill dispersing into the surrounding soil. Hydro jet equipment was utilized to clear the blockage in the mainline. Promptly notified all necessary agencies. 	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Schedule CCTV to determine maintenance adjustment  		11/03/2023 21:30	N/A		N/A	01/03/2024 12:00														N/A	Place on Hydro Periodic until further notice	MH 263 to MH 239 placed on 120-day Hydro periodic S09E0307	N/A	N/A	N/A	Hydro periodic S09E0307 created on 11/29/23	N/A	N/A	
2	2SSO10170	Active	Richmond City CS	Richmond City	891229	1.3	Certified	Mary Phelps	Project Manager		20-DEC-23	20-DEC-23	Monthly Category 3 Spill	910 23rd St	11/10/2023 11:45	11/10/2023 11:55	11/10/2023 11:00				See Attachment	37.94517	-122.34745	Gravity Mainline			690	See Attached	Y	See Attached	690				690	Drainage Conveyance System		Captured and returned to sanitary sewer	Y	37.94517	-122.34745							11/10/2023 13:18	Visual assessment based on training	Visual assessment based on training	Fats, Oil and Grease (FOG)		Gravity Mainline		Concrete		35	Spill reached storm drain inlet, but storm drain system was isolated.  Spill was returned back to sanitary sewer and storm drains were sanitized. 	N	Returned All Spill to Sanitary Sewer System		Traffic control, cleared blockage, isolated storm drain, captured spill and returned to sanitary sewer	Enforcement action against Fats, Oil, and Grease (FOG) source; Plan Rehabilitation or Replacement of Sewer		Provided public outreach pertaining to the reduction on FOG related discharges to contributing/neighboring properties. Performed an inspection of the restaurant at 910 23rd St. and reviewed GRD maintenance manifests. 		11/10/2023 14:15	Jetting of sewer line to clear blockage produced evidence that FOG in effected gravity sewer was the primary cause of spill		Annual inspection of all restaurants on 23rd street and more frequently as required to achieve compliance with Richmond Municipal Codes. 	11/10/2023 14:15														The restaurant at 910 23rd St. was inspected on 11/13/23 and was able to produce consistent GRD maintenance manifests from every 3 months from the previous year. The most recent GRD maintenance was performed on 11/4/23.   BMP education was provided to the restaurant as well as throughout the neighboring residential properties. 	N/A		Will investigate the necessity/feasibility of planned rehabilitation.	N/A	N/A		Spill response was adequate	Annual inspection of all restaurants on 23rd street and more frequently as required to achieve compliance with Richmond Municipal Codes. 	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	891230	1.3	Certified	Kent Vian	Asst. Deputy Director	14-NOV-23	29-NOV-23	29-NOV-23	Category 1 Spill	NOT# 40201032460 10494 BROOKTREE TER.	11/13/2023 11:17	11/13/2023 11:45	11/13/2023 11:16		-		SPILL ORIGINATED IN THE INTERSECTION OF SCRIPPS LAKE DR. & BROOKTREE TER. JUST NORTHEAST OF 10494 BROOKTREE TER	32.91137	-117.09384	Manhole	NA	NA	410	SPILL EXITED THE MANHOLE AND HEADED WEST ONTO THE NORTH AND SOUTH CURB AND GUTTER, ENTERING THE STORM DRAIN ON BOTH SIDES, HEADING SOUTHWEST INTO A DRY STORM CONVEYANCE CHANNEL, SETTLING IN THE DIRT.	Y	THE DRAINAGE CONVEYANCE SYSTEM THAT TRANSPORTED THE SPILL, EXITED THE CONCRETE STORM DRAIN AND INTO A DRY DRAINAGE CONVEYANCE SYSTEM. SEWER SETTLED INTO THE DIRT.	0	390	THE SEWER DID NOT DISCHARGE INTO SURFACE WATERS.	0	0	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface	N/A	THE SPILL EVENT DESTINATION WAS A DRY DRAINAGE CONVEYANCE SYSTEM.	Y	32.91141	-117.10601							11/13/2023 11:57	VISUAL CALCULATED METHOD.	ASSUMTION OF THE START TIME OF THE SPILL WAS WHEN THE CONSUMER CALLED INTO DISPATCH. THE END TIME WAS DETERMINED BY THE TIME THE MAIN WAS CLEARED AND NO SPILL EXITED THE SYSTEM.	Debris from Construction; Vandalism (specify below)	N/A	Gravity Mainline	N/A	Polyvinyl Chloride (PVC)	N/A	45	IMPACTS OF THE SPILL, THE SPILL WENT ONTO THE STREET, IMPACTING THE CURB AND GUTTER AND THE DRAINAGE CONVEYANCE SYSTEM.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow	N/A	UPON ARRIVAL, IT WAS BEST TO RELIEVE THE SPILL DUE TO THE SEWER GOING ON BOTH SIDES OF THE STREET. WE WASHED THE STREET, CURB AND GUTTER DOWN WITH CLEAN WATER.	Inspected Sewer Using CCTV to Determine Cause	N/A	THE SPILL CORRECTIVE ACTION WAS TO RELIEVE THE BLOCKAGE. IT APPEARS A CONSUMER REPLASTERD A POOL AND DISCARDED OLD PLASTER IN OUR SYSTEM.	N/A	11/13/2023 20:30	 IT APPEARS A CONSUMER REPLASTERD A POOL AND DISCARDED OLD PLASTER IN OUR SYSTEM.	N	N/A		UNNAMED DRAINAGE CONVEYANCE SYSTEM.	Stream/Creek	N/A	DRY CREEK BED.	NONE	Other (specify below)	NO PUBLIC ACCESS IMPACT.	N/A	0	N	N	N/A	N/A									N/A	
3	3SSO10347	Active	Watsonville CS	Watsonville City	891231	1.2	Certified	Ruben Tellez	Collection Systems Manager	16-NOV-23	30-NOV-23	30-NOV-23	Category 1 Spill	Montebello Dr	11/14/2023 06:58	11/14/2023 06:46	11/14/2023 06:58		-		Spill came out of 2 locations, the manhole in front of 112 Montebello Dr and the private lateral of 112 Montebello Dr.	36.91936	-121.77637	Lateral Clean Out (Private); Manhole			120	The spill occurred at 2 points, a manhole, and a sewer cleanout. The spill from the manhole ran down the middle of the road on down the hill spliiting 2 ways into a storm DI.  The 2nd point of the spill came from the sewer cleanout from 112 Montebello down their driveway into a storm DI. Downstream outlet was plugged and water was sitting in the storm line when the spill started. All water in the system was removed. An estimated 3500 gal	Y	The drainage conveyance were 2 separate storm inlets leading into the same storm line conveyance	3500	0	The discharge point was directly out to a slough 	0	108	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		The spill occurred at 2 points, a manhole, and a sewer cleanout. The spill from the manhole ran down the middle of the road on down the hill spliiting 2 ways into a storm DI.  The 2nd point of the spill came from the sewer cleanout from 112 Montebello down their driveway into a storm DI. The downstream outlet was plugged and water was sitting in the storm line when the spill started. All water in the system was removed. An estimated 3500 gal	Y	36.91932	-121.77627							11/14/2023 07:10	Pictures and videos were taken of the spill as it was occurring. Using those photos we were able to measure the surface area of the spill and calculate the sewage lost to asphalt and concrete saturation. Using the video we were able to use the bucket method and mimic the flow and time the filling of a 5-gallon bucket helping us estimate the spill rate. 	I used dictated notes on my phone to note the time of my arrival and that there was no spill. I then noted when the spill began as I saw it firsthand, viewing it starting and stopping. 	Pump Station Failure - Controls; Pump Station Failure - Mechanical; Pump Station Failure - Power		Pump Station - Controls; Pump Station - Mechanical; Pump Station - Power		Other (specify below)	Truss Pipe	33	The impact was minimal 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Isolated the conveyance system  Combo truck and crew washed and vacuumed the area Combo truck washed and vacuumed the conveyance system 	Repaired Facilities or Replaced Defect		PGE Power flicker caused HMI issues  We had instrumental techs add additional alarms for earlier and multiple warnings 	11/15-11/24/2023	11/14/2023 09:19	Saw a standing alarm on SCADA at a high level at the lift station Both pumps were experiencing failures  repaired failures asap called cleanup crew	N			Struve Slough	Slough; Wetland		The area was dry and water never reached it	The area was dry and water never reached it	Other (specify below)	No public access was impacted 	County of Santa CRuz	0	N	N												
3	3SSO20005	Active	Watsonville CS	Watsonville City	891231	1.2	Certified	Ruben Tellez	Collection Systems Manager	16-NOV-23	30-NOV-23	30-NOV-23	Category 1 Spill	Montebello Dr	11/14/2023 06:58	11/14/2023 06:46	11/14/2023 06:58		-		Spill came out of 2 locations, the manhole in front of 112 Montebello Dr and the private lateral of 112 Montebello Dr.	36.91936	-121.77637	Lateral Clean Out (Private); Manhole			120	The spill occurred at 2 points, a manhole, and a sewer cleanout. The spill from the manhole ran down the middle of the road on down the hill spliiting 2 ways into a storm DI.  The 2nd point of the spill came from the sewer cleanout from 112 Montebello down their driveway into a storm DI. Downstream outlet was plugged and water was sitting in the storm line when the spill started. All water in the system was removed. An estimated 3500 gal	Y	The drainage conveyance were 2 separate storm inlets leading into the same storm line conveyance	3500	0	The discharge point was directly out to a slough 	0	108	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		The spill occurred at 2 points, a manhole, and a sewer cleanout. The spill from the manhole ran down the middle of the road on down the hill spliiting 2 ways into a storm DI.  The 2nd point of the spill came from the sewer cleanout from 112 Montebello down their driveway into a storm DI. The downstream outlet was plugged and water was sitting in the storm line when the spill started. All water in the system was removed. An estimated 3500 gal	Y	36.91932	-121.77627							11/14/2023 07:10	Pictures and videos were taken of the spill as it was occurring. Using those photos we were able to measure the surface area of the spill and calculate the sewage lost to asphalt and concrete saturation. Using the video we were able to use the bucket method and mimic the flow and time the filling of a 5-gallon bucket helping us estimate the spill rate. 	I used dictated notes on my phone to note the time of my arrival and that there was no spill. I then noted when the spill began as I saw it firsthand, viewing it starting and stopping. 	Pump Station Failure - Controls; Pump Station Failure - Mechanical; Pump Station Failure - Power		Pump Station - Controls; Pump Station - Mechanical; Pump Station - Power		Other (specify below)	Truss Pipe	33	The impact was minimal 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Isolated the conveyance system  Combo truck and crew washed and vacuumed the area Combo truck washed and vacuumed the conveyance system 	Repaired Facilities or Replaced Defect		PGE Power flicker caused HMI issues  We had instrumental techs add additional alarms for earlier and multiple warnings 	11/15-11/24/2023	11/14/2023 09:19	Saw a standing alarm on SCADA at a high level at the lift station Both pumps were experiencing failures  repaired failures asap called cleanup crew	N			Struve Slough	Slough; Wetland		The area was dry and water never reached it	The area was dry and water never reached it	Other (specify below)	No public access was impacted 	County of Santa CRuz	0	N	N												
2	2SSO10109	Active	Concord City CS	Concord City	891232	1.3	Certified	Pernise Seumanutusa	Public Works Supervisor		14-NOV-23	14-NOV-23	Monthly Category 3 Spill	Cambridge Park	11/13/2023 08:17	11/13/2023 08:32	11/13/2023 08:00				Spill occurred from one manhole.	37.95377	-122.04725	Manhole			173	Spill stayed on dirt trail and grass area. 	N						100	Unpaved Surface		Grass and unpaved areas.										11/13/2023 10:53	Eye ball and duration and flow	Eye ball and duration and flow	Vandalism (specify below)	Illegal dumping into system	Manhole		Vitrified Clay		80	No impact to area	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow	Area were cleaned, washed and sanitized.	Area were cleaned, washed and sanitized. Sandbags were used to contain spill in one area.	Other (specify below)	Replacing manhole cover with a solid cover and adding an adhesive. 	Replacing manhole cover with a solid cover and adding an adhesive. 		11/13/2023 13:35	n/A		n/A	11/14/2023 12:36														n/A	n/A	n/A	n/A	n/A	n/A	n/A	n/A	n/A	
2	2SSO10151	Active	Marin Csd 5 - Tiburon Plant CS	Marin Cnty Sanitary District 5	891235	1.2	Certified	Dan LaTorre	Maintenance Superintendent 	14-NOV-23	14-NOV-23	14-NOV-23	Category 1 Spill	8 Eucalyptus Rd	11/11/2023 19:03	11/11/2023 20:05	11/11/2023 17:16		-		spill originated at a 4  clean out just off the street across from #8 Eucalyptus rd.	37.87165	-122.46917	Gravity Mainline			30	From the clean out, it runs down a couple feet to the street. From there it travels along the curb/gutter approximately 160' to a catch basin located next to our manhole # FA15. Spill area at clean out is 28  X 5 ', curb area is 12  X 160' , and catch basin area is approximately 4' X 6'.	Y	Asphalt curb that runs along the street to a small catch basin next to our manhole. Went down 1 catch basin from where sewage entered the system and found that catch basin dry suggesting that contents from the spill never made it downstream. Catch basins were cleaned using a Vactor truck. 	30	0	Spill never made it into any moving water. It was contained and recovered from conveyance system.	0	30	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		From the clean out, it runs down a couple feet to the street. From there it travels along the curb/gutter approximately 160' to a catch basin located next to our manhole # FA15	Y	37.87165	-122.46917							11/11/2023 20:45	Eyeball estimate and calculations made using the start time determination notes.	Eyeball estimate and calculations made using the start time determination notes to determine start time. End time was noted at time full flow was restored to the system. 	Pipe Structural Problem/Failure - Controls; Root Intrusion		Gravity Mainline		Vitrified Clay		63	None - minor	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Upon confirming an SSO had occurred, full flow was restored using a Rodder truck to remove minor roots. No sewage was flowing out of the pipe for most of the duration that the Employee was on scene. The area was then cleaned and disinfected and spoils were returned to the system.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		Along with increasing the cleaning activities for this line, it will be televised to determine what repairs are needed and where they are needed.	N/A	11/13/2023 14:00	Minor roots were removed as well as breaking blades inside pipe suggesting a pipe failure.	Y	Line will be televised to make needed repairs.	11/22/2023 14:00	Richardson Bay	Ocean	Spill never made it to Receiving waters. It was contained in the conveyance system prior to the receiving waters.	Bay leading to the ocean.	NONE	Other (specify below)	NONE	N/A	0	Y	N	Spill was fully recovered from conveyance system. 	N/A									Line will be televised to make needed repairs.	
2	2SSO10114	Active	Sausalito City CS	Sausalito City	891247	1.4	Certified	Patrick A. Guasco	City of Sausalito DPW Division Manager		29-NOV-23	29-NOV-23	Monthly Category 3 Spill	633/635 Main Street	10/21/2023 11:51	10/21/2023 15:50	10/21/2023 09:00				Spill appeared at a Private Contra Costa Valve (BWPD) due to a problem within the Publicly Maintained Sewer System. Not all flows came out of this cleanout, the City main still had plenty of flow making its way past an obstruction in the main.	37.84886	-122.48506	Backflow Prevention Device			208	Spill reached the landscaped backyard between properties close to an area drain. Width of spill was contained between the sides of dwellings.	N						0	Unpaved Surface		Spill originated from a CCV BWPD under decking in a enclosed garbage storage closet located at 635 Main St. Due to the slope, the spill from the BWPD flowed over ground headed west towards 633 Main St. through a horizontal fence, over and down a wall down to a passageway over bricks and under decking pathway. The spill had ponded around passageway in front of entryway for 633 Main St. which contained a good portion of the spill. The Spill was contained along the side of 633 Main St. The Spill ponded to a point then breached a soil level at a higher elevation then proceeded to run downhill towards the rear of 633 Main St. where the spill stopped. In close proximity of the end point is a roof downspout drainage pipe underground. Undetermined at this point if the spill reached the drain. There was no obvious evidence and the soil didn't seem to be saturated. The flows witnessed in the USMH & DSMH were fairly consistent with minimal flow. Not all flows had breached the CO in 635's property	Y	39.84886	-122.48505							10/21/2023 16:02	Eyeball Method, Measured Volume, Duration and Flow Rate, Counted Upstream Connections	A 4  HDPE SDR17 cutout had reached the publicly maintained sewer system and got stuck creating a backup at a private residence. Not all flows had surcharged out of the cleanout, the City main still had plenty of flow still going through the obstruction. Went off when the reporting party first noticed something before it was confirmed. I believe the spill was less than the amount reported.  This was a partial backup. The same flow was witnessed in the upstream MH and downstream MH. I believe that 1 gal per edu is a fair representation of what was witnessed inn the field coming out if the cleanout and spill on land.	Debris from Construction		Gravity Mainline		Vitrified Clay		100	Spill impacted private property at 635 & 633 Main St. The spill impacted dirt, wooden fence, retaining wall, brick walkway, Wooden decking walkway, soil under a shed, and final destination was a landscaped area.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow	Restoration Management was called in to clean up	Cleared and removed the obstruction in the City mainline that was causing a partial backup. Had a Restoration Management come in, clean up and haul out contaminated soils the following morning.	Other (specify below)	Ongoing investigation to determine where the construction debris came from.	Construction debris came from a private lateral repair or replacement somewhere upstream of where the blockage occurred. A contractor didn't remove all the debris before commissioning a newly installed lateral. Most likely a Trench-less type of replacement using 4 HDPE SDR17 The cutout from a lateral ended up in our mainline. Enforce the fact that Contractors need to remove all material inside pipes.		10/22/2023 16:00	Undetermined of where the debris came form. 		Trying to figure out what repairs have been completed upstream of where the blockage occurred. 	11/15/2023 12:47														N/A	N/A	No adjustment needed	Not at this time	Not required at this time	Not at this time	N/A	N/A	Trying to figure out what repairs have been completed upstream of where the blockage occurred. 	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District	891257	1.1	Certified	David Leamer	Assistant Superintendent		27-NOV-23	27-NOV-23	Monthly Category 3 Spill	333577	10/07/2023 17:00	10/07/2023 17:42	10/06/2023 17:00				See Attachment, Spill Map and Photos	38.60993	-121.39122	Lateral Clean Out (Private)	N/A		476	See Attachment, Spill Map and Photos	Y	See Attachment, Spill Map and Photos	163				452	Building or Structure; Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		See Attachment, Spill Map and Photos	Y	38.60971	-121.39213	38.60657	-121.39221					10/07/2023 18:45	See Attachment, Spill Volume Estimation.	See Attachment, Spill Volume Estimation.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		75	No observed impact of spill	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		SacSewer crews broke the stoppage in the SacSewer mainline. SacSewer crews cleaned the above-ground areas in contact with the overflow at the driveway, sidewalk, and the curb/gutter. SacSewer crews cleaned the affected storm drain system, from the DI at the NE corner of Sunview Ave and Morse Ave to the SDMH at the intersection of Morse Ave and Ellington Cir, using a combination of hydro-vacuum truck and rinsing. A sandbag dam was set up inside the SDMH at the Intersection of Morse Ave and Ellington Cir. Dechlorinated water was introduced from a fire hydrant through the DI at the NE corner of Sunview Ave and Morse Ave to rinse the storm drain system, including the corrugated pipe section. Contaminated water was pumped out from the SDMH and returned to the sewer system through a sewer manhole at 2235 Morse Ave. SacSewer claims administrator sent contractor to clean up the backyard and the areas in and around the structure.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Created WO 2747320 Hydro for roots with Job Plan 1867 and WO 2747321 TVI for condition and PM Eval in 6months out, WO 2747322 USMH Node TVI. Created SR 334309 to modify current cleaning PM with Job Plan 1330 PM 18771 from 12months to 6months with JP 1867 to start on 02/2024 due to BIS issue.		10/11/2023 12:15	SacSewer crews broke the stoppage in the SacSewer mainline. SacSewer crews cleaned the above-ground areas in contact with the overflow at the driveway, sidewalk, and the curb/gutter. SacSewer crews cleaned the affected storm drain system, from the DI at the NE corner of Sunview Ave and Morse Ave to the SDMH at the intersection of Morse Ave and Ellington Cir, using a combination of hydro-vacuum truck and rinsing. A sandbag dam was set up inside the SDMH at the Intersection of Morse Ave and Ellington Cir. Dechlorinated water was introduced from a fire hydrant through the DI at the NE corner of Sunview Ave and Morse Ave to rinse the storm drain system, including the corrugated pipe section. Contaminated water was pumped out from the SDMH and returned to the sewer system through a sewer manhole at 2235 Morse Ave. SPLM cleaned up the backyard and the areas in and around the structure.		None	10/11/2023 12:15														None	SacSewer changed job plan identifying cleaning tools and methods for this mainline and SacSewer increased preventive cleaning frequency from 12 months to 6 months	SacSewer increased preventive cleaning frequency from 12 months to 6 months	None	SacSewer inspected mainline with CCTV on 10/24/ 23	N/A	SacSewer increased preventive maintenance frequency on 10/24/23	None	None	
5R	5SSO10859	Active	Chico CS	Chico City	891258	1.1	Certified	Skyler Lipski	Deputy Director, Public Works O&M		16-NOV-23	16-NOV-23	Monthly Category 3 Spill	425 Weymouth Way & 484 Windham Way	10/16/2023 13:44	10/16/2023 14:00	10/16/2023 13:44				425 Weymouth Way and 484 Windham Way	39.77199	-121.88795	Manhole			80	From MH near 425 Weymouth, into gutter/DI near 438 Weymouth, then into storm drain, but not to next DI which is 370' away.	Y	From MH near 425 Weymouth, into gutter/DI near 438 Weymouth, then into storm drain, but not to next DI which is 370' away.	80				80	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		From MH near 425 Weymouth, into gutter/DI near 438 Weymouth, then into storm drain, but not to next DI which is 370' away.	Y	39.77199	-121.88795							10/16/2023 15:00	Visual estimate	Notification of the spill from citizen	Pump Station Failure - Controls		Pump Station - Controls		Polyvinyl Chloride (PVC)		20	39.769315, -121.886394	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		From MH near 425 Weymouth, into gutter/DI near 438 Weymouth, then into storm drain, but not to next DI which is 370' away. All spill volume jet/vac cleaned.	Repaired Facilities or Replaced Defect		Continue routine maintenance and inspection of pump station.		10/16/2023 15:00	Pump station ultrasonic and mechanical level sensor controls failed. Pump station did not call out since the level indicator remained within an acceptable range. Upon notification from citizen, crews quickly responded to investigate, contain, clean and repair the system to resume normal operations. Unknown cause of ultrasonic level sensor control failure.		N/A	10/16/2023 15:50														N/A	N/A	N/A	N/A	Ultrasound level sensor unit	N/A	N/A	N/A	N/A	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	891259	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	16-NOV-23	21-NOV-23	21-NOV-23	Category 1 Spill	4100 Redwood Road, Oakland Ca	11/15/2023 12:54	11/15/2023 13:10	11/15/2023 13:16	11/15/2023 14:00	23-7118		Manhole on Easement on a hillside.	37.79797	-122.18195	Manhole			1350	Manhole on Easement on a hillside was overflowing, the water flowed downstream to a paved parking lot, and then it flowed into a separate storm drain.	Y	Separate storm drain that leads to Lion creek, Arroyo Viejo creek, and Damon Slough.	0	1195	Manhole on Easement on a hillside was overflowing, the water flowed downstream to a paved parking lot, and then it flowed into a separate storm drain.	1195	155	Drainage Conveyance System that discharges to surface water; Paved Surface		Manhole on Easement on a hillside was overflowing, the water flowed downstream to a paved parking lot, and then it flowed into a separate storm drain.	Y	37.79797	-122.18195							11/15/2023 13:16	54 min x 25 gpm = 1350 Recovered paved surface: 100' L x 10' W x .02' D x 7.48 = 150 gallons. Puddle: 3' L x 3' W x .08' D x 7.48 = 5 gallons Recovered 150 + 5 = 155 gallons. Reached the storm drain: 1350 - 155 = 1195 gallons.	Start time was established by eyewitness account, eyewitness called sewer supervisor, Joseph Knight. End time was based on when the responding crew restored the flow.	Root Intrusion		Manhole		Polyvinyl Chloride (PVC)		30	Manhole on Easement on a hillside was overflowing, the water flowed downstream to a paved parking lot, and then it flowed into a separate storm drain that flows to, Lion Creek, Arroyo Viejo Creek, Damon Slough.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Cleaned and recovered part of the spill on the paved surface.	Cleaned and recovered part of the spill on the paved surface.	Added Sewer to Preventive Maintenance Program	Line has been placed on a six-month high preventative maintenance program.	Line has been placed on a six-month high preventative maintenance program.	Line has been placed on a six-month high preventative maintenance program.	11/15/2023 19:30	CCTV inspection found root intrusion at the annular space inside the manhole.	N			Lion Creek, Arroyo Viejo Creek, Damon Slough.	Stream/Creek	Lion Creek, Arroyo Viejo Creek, Damon Slough.	Stream	None.	Other (specify below)	None.	N/A	0	Y	N												
2	2SSO10212	Active	Vallejo Sfcd CS	Vallejo Flood & Wastewater District (formerly Vallejo San & Flood Control District)	891260	1.2	Certified	Justin Keating	Director of Field Operations	16-NOV-23	28-NOV-23	28-NOV-23	Category 2 Spill	840 Nebraska St	11/13/2023 16:40	11/13/2023 17:00	11/13/2023 15:00	11/13/2023 18:01	23-7077		Spill occurred in easement between Vallejo High School and residential neighborhood	38.11679	-122.24514	Manhole			9761	Spill occurred in easement between Vallejo High School and residential neighborhood. Spill flowed from easement area down into a field within the high school property.	N						0	Unpaved Surface		Spill occurred in an easement located in the outer perimeter of Vallejo High School. The spill flowed from the easement down onto a field.	Y	38.11677	-122.24506							11/13/2023 18:02	Staff started with a visual estimate based of the flow initially coming from the overflowing manhole. Then moved to a more precise measurement of the total spread of the spill, using a Length X Width X Depth method.	Interviewed 2 School District Employees. They reported first noticing moisture near the easement area around 15:00 on 11/13/23. At the time they did not realize it was a sewer maintenance issue. They noticed the water had spread later that afternoon, in which they reported to the District at 16:40 on 11/13/23.	Vandalism (specify below)	District staff found manhole cover removed and filled with lumber, pillows, 5 gallon buckets, fabric, and broken tree branches.	Manhole		Cross-Linked Polyethylene (PEX)		50	Spill flowed into easement and down onto field.	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow	Removed debris contaminated with sewage. Cleaned around manhole. cleaned impacted areas on field.	Spill absorbed into the ground. Area was cleaned of debris. Access to field was blocked by School District staff. Posted signs.	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below)	Installed locking manhole cover.	Installed locking manhole cover	Locking cover installed 11/14/2023	11/13/2023 20:30	Vandalism caused by removing cover, and filling with debris.	N												N													
6A	6SSO11120	Active	Truckee Sanitary District CS	Truckee SD	890815	2.3	Certified	Eric Sundale	Superintendent	16-OCT-23	16-NOV-23	16-NOV-23	Category 1 Spill	Truckee High School 	10/11/2023 14:00	10/11/2023 14:18	09/12/2023 08:00	10/11/2023 16:38	23-6467	16-NOV-23	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	39.32376	-120.21265	Manhole		Two manholes 25 feet apart.	43220	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons. See Sewer Service Request (SSR) and email communications attachments. Photos will be included when organized and labeled.	Y	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons. See Sewer Service Request (SSR) and email communications attachments. Photos will be included when organized and labeled.	2000	0	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons. See Sewer Service Request (SSR) and email communications attachments. Photos will be included when organized and labeled.	43220	2000	Drainage Conveyance System that discharges to surface water; Surface Water; Unpaved Surface		Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	Y	39.32376	-120.21265							10/11/2023 15:21	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	Damage by Others Not Related to Collection System Construction/Maintenance		Gravity Mainline		Polyvinyl Chloride (PVC)		50	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	10/11/2023 22:30	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	Y	Pursuing potential damages from contractor or School District. Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	12/27/2023 16:36	No official name of Retention Basin next to spill site.	Other (specify below)	Retention basin.	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	None. No observable aquatic life. No notice from Nevada County Public Health on this topic.	Other (specify below)	No public access impact. Fenced Caltrans area.	NA	0	N	Y	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.									Pursuing potential damages from contractor or School District. Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	
6A	6SSO11120	Historical	Truckee Sanitary District CS	Truckee SD	890815	2.3	Certified	Eric Sundale	Superintendent	16-OCT-23	16-NOV-23	16-NOV-23	Category 1 Spill	Truckee High School 	10/11/2023 14:00	10/11/2023 14:18	09/12/2023 08:00	10/11/2023 16:38	23-6467	16-NOV-23	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	39.32376	-120.21265	Manhole		Two manholes 25 feet apart.	43220	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons. See Sewer Service Request (SSR) and email communications attachments. Photos will be included when organized and labeled.	Y	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons. See Sewer Service Request (SSR) and email communications attachments. Photos will be included when organized and labeled.	2000	0	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons. See Sewer Service Request (SSR) and email communications attachments. Photos will be included when organized and labeled.	43220	2000	Drainage Conveyance System that discharges to surface water; Surface Water; Unpaved Surface		Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	Y	39.32376	-120.21265							10/11/2023 15:21	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	Damage by Others Not Related to Collection System Construction/Maintenance		Gravity Mainline		Polyvinyl Chloride (PVC)		50	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	10/11/2023 22:30	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	Y	Pursuing potential damages from contractor or School District. Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	12/27/2023 16:36	No official name of Retention Basin next to spill site.	Other (specify below)	Retention basin.	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	None. No observable aquatic life. No notice from Nevada County Public Health on this topic.	Other (specify below)	No public access impact. Fenced Caltrans area.	NA	0	N	Y	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.									Pursuing potential damages from contractor or School District. Update 10-25-23 See attached email update. TSD is working with a consultant to install a flow monitor at the spill site to come to a final spill volume. TSD will update when study is complete, and include a Technical report if over 50,000 gallons.	
9	9SSO10668	Active	HARRF Disch To San Elijo OO CS	Escondido City	891261	1.4	Certified	Kyle Morgan	Deputy Director of Utilities/ Wastewater	16-NOV-23	29-NOV-23	29-NOV-23	Category 1 Spill	1600 Riva Lane	11/14/2023 17:45	11/14/2023 18:12	11/14/2023 17:34	11/14/2023 20:23	-		1600 Riva Ln and Washington Ave is the main cross street. Manhole facility ID# 5524	33.1364	-117.06042	Gravity Mainline; Manhole			2600	The sewer was discharging out of the manhole # 5524 on 1600 Riva Ln. The sewer was going into storm drain# 601, approximately 25 feet away. 	Y	The sewer was going into storm drain# 601, approximately 25 feet away. Then, it goes under the street into storm drain #602 and then opens into the storm drain channel. We could not set up the storm drain channel because the inlet was too challenging to reach, and there were power lines above where the vacuum boom would need to reach the inlet.	400	2000	Escondido Creek	2000	400	Drainage Conveyance System that discharges to surface water		The spill entered a storm drain inlet at Rose St. and approximately 250 feet away it entered the the Escondido Flood control channel. The flood control channel is a concrete lined channel that traverses through the center of Escondido. The concrete lined channel transitions from concrete lined to natural earth at Harmony Grove Road, which is about 3.6 miles downstream of where the spill entered the flood control channel at Rose Street.	Y	33.13599	-117.06041							11/14/2023 19:34	Staff used the duration and flow rate method for estimation of the spill volume. Staff used the field overflow estimation gauge provided by the CWEA to get the GPM and the time the caller noticed the spill for the start time. End time was when the blockage was cleared the spill was terminated. 	Staff used the time the reporting party noticed the spill as the start time and the end time was when the stoppage was removed and the spill was terminated.	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		60	No impact on surrounding dwelling units or to other sections of the system. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Vacuum truck setup at storm drain inlet to contain and begin recovering water. A second combination sewer cleaner truck was used a penetrating nozzle to break the stoppage and reestablish flow. ultimately terminating the spill. Cleanup efforts included street washdown, storm drain box washdown and storm drain pipe flushing. All the washdown and flushing water was recovered by vacuum truck.  Staff made notifications to the following agencies: Cal-OES (control number: 23-7100) Regional Quality Control Board (Message left Joann Lim) San Diego County Department of Environmental Health and Quality (Staff spoke with Nolberto Colon-Droz, Senior Environmental Health Specialist)	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Corrective actions to prevent future spills on this line include; televising to determine spill cause and the identification of root intrusion as the cause. We have adjusted preventative maintenance activities to include cleaning of this line by means of mechanical cleaning with a continuous rodder and a reassessment via CCTV to ensure effective cleaning. Additional information has been added to our CMMS program to alert field staff of the problem location footage in the mainline so they can give more cleaning attention to that area.	In three months, another CCTV assessment will be performed to make sure the current cleaning activities and timeframe are proving to be adequate. 	11/14/2023 22:00	After the spill was terminated and cleaned, staff used the agency's CCTV truck to determine what the cause of the spill was. CCTV determined that a large root mass had grown into the mainline and coupled with flushable wipes and some FOG, was the cause. 	N			Escondido Creek	Other (specify below)	The receiving water body is the Escondido Creek flood control channel.	Escondido Creek flood control channel that extends 3.6 miles downstream from the where the spill entered to Harmony Grove Road. At Harmony Grove Road, the creek transitions from a concrete lined channel to natural earth.	None.	Other (specify below)	The San Diego County Department of Environmental Health and Quality, stated no closures were necessary nor was there public access to the creek.	San Diego County Department of Environmental Health and Quality	0	N	N												
4	4SSO11368	Active	West Hollywood CS	West Hollywood City	891262	1.1	Certified	Robert Swartz	Sr. CE		20-DEC-23	20-DEC-23	Monthly Category 3 Spill	 (9002 Melrose Avenue, West Hollywood)	10/21/2023 12:02	10/21/2023 14:25	10/21/2023 11:00				CSMD Map Sheep No. 1530 MMS No. 8479226	34.08074	-118.38779	Lateral Clean Out (Private)			60	The spill dissipated on the street/curb. 	N						5	Street/Curb and Gutter (2 3)		The spill dissipated on the street/curb. 	Y	34.08074	-118.38779							10/21/2023 15:20	CWEA SSCSC Manhole Gauge 	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops.	Fats, Oil and Grease (FOG)		Gravity Mainline; Manhole		Vitrified Clay		96	N/A	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow		Upon arrival, we found the cleanout at 9002 Melrose Avenue was slightly overflowing.  We used hydro jet equipment to clear the mainline blockage caused by grease and roots. After letting the mainline settle, we cleaned it again using the Warthog system. We also cleaned the spill area and informed the necessary agencies. 	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below)	Inspect and monitor condition.	It was recommended to extend to 60-day preventive maintenance program.		10/21/2023 17:55	Environmental Programs Division is investigating to find the business or businesses responsible for the grease accumulation in the sewer mainline.		Environmental Programs Division is investigating to find the business or businesses responsible for the grease accumulation in the sewer mainline.	12/21/2023 12:00														N/A	N/A	It was recommended to extend to 60-day hydro from Melrose Avenue from M/H 206 to M/H 193.	N/A	N/A	N/A	N/A	N/A	Environmental Programs Division is investigating to find the business or businesses responsible for the grease accumulation in the sewer mainline.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	891267	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	17-NOV-23	21-NOV-23	21-NOV-23	Category 1 Spill	Broadway & Clifton St, Oakland CA	11/15/2023 08:32	11/15/2023 09:15	11/15/2023 08:15	11/15/2023 09:59	23-7111		Manhole in the street was overflowing, and the water was flowing downstream on paved surface to a storm drain. Part of the spill was captured from the street and a plugged off storm inlet. 	37.83689	-122.25082	Manhole			2250	Manhole in the street was overflowing, and the sewage was flowing downstream on paved surface to a storm drain. Part of the spill was captured from the street and a plugged off storm inlet. The sewage went to the drainage conveyance system leading to Glen Echo Creek. 	Y	Storm drainage conveyance system flowing into Glen Echo Creek. 	0	2069	Drainage conveyance system leading into the creek. 	2069	0	Drainage Conveyance System that discharges to surface water		Manhole in the street was overflowing, and the water was flowing downstream on paved surface to a storm drain. Part of the spill was captured from the street and a plugged off storm inlet.  The water from the storm drain flowed to Rockridge and Glen Echo Creek.	Y	37.83689	-122.25082							11/15/2023 09:30	Pick/venthole estimation chart: 1  holes x .5  height = 2.5 gpm 12 ventholes x 2.5 gpm = 30 gpm 30 gpm x 75 minutes = 2.250 gallons total spill Recovered from curb and gutter: 235' L x 1.5' W x .0416' D x 7.48 = 110 G Puddle: 25' L x 3.5' W x .25' D x 7.48 = 22 gallons Storm Inlet: 3' L x 2' W x 1' D x 7.48 = 49 gallons Total Recovered: 110+ 22+ 49 = 181 gallons From Storm Drain Not recovered: 2250 - 181 = 2069 gallons	Start time eyewitness account first seeing the overflow. End time was based on responding crew restoring the flow.	Root Intrusion	Root intrusion in the main line combined with FOG.	Gravity Mainline		Vitrified Clay		90	Manhole in the street was overflowing, and the water was flowing downstream on paved surface to a storm drain. Part of the spill was captured from the street and a plugged off storm inlet.  The water from the storm drain flowed to Rockridge and Glen Echo Creek.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Cleaned up the affected areas and street, gutter, and storm inlet.	Cleaned up the affected areas and street, gutter, and storm inlet.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Main line has been added to six-month preventative maintenance program.	Main line has been added to six-month preventative maintenance program.	11/21/2023 12:00	CCTV inspection found evidence of root intrusion in the mainline.	N			Ro	Stream/Creek	Rockridge and Glen Echo Creek.	Stream	None.	Other (specify below)	No public access restricted. Warning signs have been posted.	N/A	0	Y	N												
5S	5SSO11048	Active	San Andreas CS	San Andreas SD	891270	1.3	Certified	Josh Weatherby	Plant Operations		27-NOV-23	27-NOV-23	Monthly Category 3 Spill	MH at Intersection of Alfreda St and Angels Rd, San Andreas, CA 95249	11/17/2023 11:06	11/17/2023 11:30	11/17/2023 10:45				From MH F-400 on SASD Collection System Map	38.18953	-120.67499	Manhole			100	See attached picture.	Y	see attached picture..	0				100	Drainage Conveyance System; Paved Surface; Unpaved Surface		Corner of Angels Rd and Alfreda Street. Extending north on Angels Rd into a storm drain. Final spill destination was in the next storm drain inlet.										11/17/2023 11:45	Estimated spill  volume is based on the recovered spill from percentage of SASD's Vac Truck capacity. Each full truck load of capacity is 600gals. Recovered spill volume is 15% of 1 truck load of Vac Truck. 100% recovery. 	At time of operator arrival, the spill had reached a storm drain but had not exited the storm drain, yet.	Debris-Rags; Root Intrusion		Manhole		Concrete		50	Nuisance odor Attract of flies and vector Public health	N	Cleaned Up (specify below); Returned All Spill to Sanitary Sewer System		Vactor truck, jetter, bags, rakes, waddles, disinfection with hypo.	Added Sewer to Preventive Maintenance Program		Treat with Root X in affected pipeline Hydrowash on scheduled timely basis.		11/17/2023 12:00	Root intrusion  Rags		N/A	11/17/2023 12:00														No	This area will be added to hotspots list for regular maintenance.	N/A	N/A	N/A	N/A	N/A	N/A	N/A	
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	891280	1.5	Certified	Daniel Whitlock	Manager	20-NOV-23	04-DEC-23	04-DEC-23	Category 2 Spill	Marin & Indiana	11/18/2023 04:50	11/18/2023 05:00	11/18/2023 04:13		-		The entire intersection of Marin & Indiana was flooded.	37.74878	-122.39034	Manhole		Spill occurred from 3 manholes/appearance points.   N-72061 N-34064 N-345837 	223613	The entire intersection of Marin and Indiana was flooded.  	N						223613	Drainage Conveyance System; Other (specify below); Paved Surface; Street/Curb and Gutter (2 3)	All portions of the spill were returned to the combined system. 	Spill was contained to roadway and returned to the combined system.	Y	37.74881	-122.39034							11/18/2023 07:30	H&H simulated model	H&H simulated mode	Surcharged Pipe (Combined Collection System Only)		Other (specify below)	No failure occurred - combined system is designed to accept and convey stormwater.  System surcharged due to rain. 	Concrete		29	No property damage. Only flooding at the intersection of Marin and Indiana. 	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Returned All Spill to Sanitary Sewer System	All portions of the spill were returned to the combined system. 	Once the rain stopped the water dissipated back into the combined system. Posted signage and used a combo truck to clean the area.	Other (specify below)	No corrective action would/could have prevented the surcharging under these conditions.	No corrective action would/could have prevented the surcharging under these conditions.	No corrective action would/could have prevented the surcharging under these conditions.	11/18/2023 08:30	Rainfall exceeded design/capacity	N												Y													
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	891282	1.4	Certified	Daniel Whitlock	Manager	20-NOV-23	04-DEC-23	04-DEC-23	Category 2 Spill	2798 Mission St	11/18/2023 08:42	11/18/2023 09:00	11/17/2023 19:00	11/18/2023 11:30	23-7175		All portions of the spill were contained in the basement of 2798 Mission St. 	37.75238	122.41865	Inside Building or Structure			37400	All portions of the spill were contained in the basement of 2798 Mission St. 	N						37400	Building or Structure		All portions of the spill were contained in the basement of 2798 Mission Street. 5000 sq foot basement.	Y	37.75235	-122.41863							11/18/2023 10:38	Gallons per square foot 5000 sq ft by 1 foot in deep.  5000sq ft x 1' x 7.48 = 37400	Discussions with the property owner and reporting party who observed the approximate time the spill started to be 7pm on 11/17/23. 10:38am on 11/18/23 Vacon crew restored flow ending the spill. 	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		57	Sewage in the basement of 2798 Mission Street. Property Damage.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Spill contained in sub basement, Cleaned main sewer and restored flow. Vacon truck was used to remove water from basement until restoration company arrived to finish cleaning. CCTV Inspection of main sewer. 	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Cleaned and inspected main sewer determined grease in main sewer was cause. Main sewer is being reviewed and possibly added to preventative maintenance schedule. 	Cleaned and inspected main sewer determined grease in main sewer was the cause. Task Complete.	11/18/2023 15:00	CCTV inspection of main sewer determined grease in main sewer was the cause of the spill.	N												N													
2	2SSO10143	Active	Homestead Valley Sanitary Dist CS	Homestead Valley Sanitary District	891291	1.2	Certified	Bonner Beuhler	Manager		24-NOV-23	24-NOV-23	Monthly Category 3 Spill	MH 110.19	11/11/2023 09:58	11/11/2023 10:20	11/11/2023 09:30				Spill was from MH 110.19 in the intersection of Loring, California, W. California Avenues and Greenhill Road near 59 Loring Avenue	37.88994	-122.53445	Manhole		Rod hole 10' away same elevation	385	Spill was from MH and nearby RH. flow from pick holes was small and intermittent. TCSD had received spill report and called me at 0958 hrs. He had already called Roto Rooter, our maintenance contractor) to respond. I arrived at 1015 hrs and pulled downstream MH which had some flow. Roto Rooter arrived at 1030 hrs and set up and began cleaning. What seemed like grit or debris was encountered and we eventually poked through with 4  blades which restored most of the flow by 1100  hrs. We eventually had to put on 2  blades and pulled back a root ball that had probably been released into the line during routine cleaning of the upstream line the previous day. Had the Vactor come out to hydro the line. Put line on hot spot cleaning for hydroflushing. The line had been completely replaced with HDPE in 2020.. Cleaned area, spill was to dirt at side of road. Flow completely restored at 1255 hrs.	N		0				0	Unpaved Surface		Unpaved side of road near 59 and 106 Loring Avenue	N									11/11/2023 12:55	Visual and connected houses	Visual and connected house. Spill time was based on notification to Tam Valley Community Services District and my visual observation of spill site upon arrival 20 minutes after notification of the spill. I was present from that time until spill stopped. 	Debris-General; Debris-Rags; Other (specify below)	Root ball from upstream cleaning the prior day that escaped trapping	Manhole		Other (specify below)	HDPE	3	Not much. Spill volume was small, flow rate was low. Spill escaped from two small pick holes in MH cover and a bit around the sides. Solids were contained in MH.	N	Cleaned Up (specify below); Restored Flow		Put out cones around spill. Assisted maintenance contractor, rodded and hydroflushed line. Cleaned up minimal spill into MH.	Adjusted Schedule/Method of Preventive Maintenance		Added line to annual hydroflushing due to sag in line. Line had been previously replaced by pipebursting with HDPE in 2020. Instructed our cleaning contractor to try to do a better job trapping roots when cleaning our VCP pipes. However, not 100% sure it was their fault. Could have been another private lateral cleaning contractor.		11/12/2023 15:30	I was present at spill site on 11/11/23 from 20 min. after notification until the spill and cleanup was done. Based on observation, it appears that debris accumulation and root ball caused spill. Line will be hydroflushed on an annual basis and upstream portion of the districts collection system is tentatively scheduled for replacement next year. The district has currently replaced most of our old VCP and is about 85% plastic pipe throughout our collection system		No	11/13/2023 10:00														None	See 20b	Yes, added annual hydroflushin	Already replace	NA	NA	Added updated cleaning frequency to line with our maintenance contractor	Spill was from MH and nearby RH. flow from pick holes was small and intermittent. TCSD had received spill report and called me at 0958 hrs. He had already called Roto Rooter, our maintenance contractor) to respond. I arrived at 1015 hrs and pulled downstream MH which had some flow. Roto Rooter arrived at 1030 hrs and set up and began cleaning. What seemed like grit or debris was encountered and we eventually poked through with 4  blades which restored most of the flow by 1100  hrs. We eventually had to put on 2  blades and pulled back a root ball that had probably been released into the line during routine cleaning of the upstream line the previous day. Had the Vactor come out to hydro the line. Put line on hot spot cleaning for hydroflushing. The line had been completely replaced with HDPE in 2020.. Cleaned area, spill was to dirt at side of road. Flow completely restored at 1255 hrs.	No	
3	3SSO10259	Active	County Operational Facility CS	San Luis Obispo Cnty PWD	891293	1.2	Certified	Kenneth Pang	Sr Water Systems Chemist	21-NOV-23	04-DEC-23	04-DEC-23	Category 2 Spill	Manhole on Kansas Ave	11/20/2023 09:53	11/20/2023 10:08	11/20/2023 09:45	11/20/2023 17:00	23-7209		Primary SSO from a manhole located on Kansas Ave. San Luis Obispo County Operations Center. SSO occurred due to a blockage in the sewer main. On arrival at the primary SSO site, SSO was spilling onto the asphalt and flowing to both sides of Kansas Ave. Containment berms of dirt, sandbags, gravel bags, wattles, and road base material were constructed to contain sewage on both sides of Kansas Ave. Flow from the manhole was slowed by placing sandbags and gravel bags on top of the manhole where the flow was originating and diverting and directing the SSO to one side of Kansas Ave (south side). The secondary SSO site occurred during cleanup operations located at the next manhole downstream, located on Kansas Ave, next to the entrance to SLO County Fleet Services.	35.320433	-120.719315	Manhole		Secondary SSO site occurred during cleanup operations by FRM (contracted collection systems maintenance provider). During Vactor operations to clear the line blockage, backed up sewage surged out of the manhole and poured onto the asphalt and ultimately spilling onto the dirt embankment on the south side Kansas Ave. SSO was absorbed into the dirt at this location. SSO did not reach the nearest storm water conveyance or drainage, approximately 150 ft west of secondary SSO location. Approximately 1800 gallons of sewage was recovered at this site during blockage removal.	2700	Photos submitted as attachments.	N						0	Unpaved Surface		Primary SSO site. GPS: 35.32718, -120.719132. dirt shoulder and embankment, south side of Kansas Ave., adjacent to originating manhole. GPS: 35.320588, -120.719387. dirt shoulder, north side of Kansas Ave. adjacent to originating manhole. Received ~ 108 minutes of flow from manhole.  Secondary SSO site: GPS: 35.320819, -120.720417. dirt shoulder and embankment , south side of Kansas Ave., adjacent to secondary SSO source.	Y	35.32718	-120.719132							11/20/2023 11:33	Used two methods to estimate spill volume. 1) visual comparison to photo slides representing various flows originating from a manhole (DKF slide)., and 2) measurement of the SSO spouting out of the manhole and using a table with representative flow values to determine the flow rate of the SSO. Assumptions used in calculations. 1) SSO flow was constant over duration (108 minutes) of the SSO. 2) DKF table used in the spouting flow model correlates with the actual flow from the manhole of our SSO. 3) Based calculations in spouting flow model on the three (3) observed spouts.	Estimated time of start of SSO: Based on when reporting staff (Water Worker bringing in drinking water samples) notified WQ. Backtrack his time to when he passed the location. End time based on observed cessation of flow from the manhole.  Last WQL employee arrived between 0845 and 0900 11/20/2023 and did not observe SSO occurring on Kansas Ave. at that time.	Debris-General; Debris-Rags; Fats, Oil and Grease (FOG); Inappropriate Discharge to Collection System; Other (specify below)	see attached photo:  Material brought up during FRM cleaning operations on Kansas Ave to clear sewer main blockage. 	Gravity Mainline; Manhole		Concrete		20	SSO at primary spill location was absorbed into the soil on the embankment of Kansas Ave.  Contaminated  soil has not been removed. Site was cleaned of sewage debris. SSO at secondary spill location was partially recovered by Vactor truck. Some sewage was absorbed into the soil on the adjacent embankment.  Contaminated  has not been removed. Site was cleaned of obvious sewage debris.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow		Spill response activities During: Containment berms were constructed at the primary SSO site. Straw wattles, dirt, gravel and sand bags, and road base material was used to construct the containment berms. SSO flow was reduced and controlled by placing sand and gravel bags upon the manhole openings. SSO was contained at the primary spill location. Fluid Resources Management (FRM), contract wastewater maintenance responded to SSO, sending a Vactor truck and staff to clear sewer main blockage. FRM cleared the blockage via the adjacent downstream manhole. During their efforts, a secondary SSO occurred at this manhole. FRM was able to recover most of the SSO using their Vactor. The remainder of the SSO flowed into the soil adjacent to the manhole. Sewage debris on roadway at the secondary SSO site was swept up and disposed. Post: Area was coned off, with sewage spill warning signs posted. Sewage debris was disposed and both SSO sites are scheduled for landscape assessment and remediation. 	Adjusted Schedule/Method of Preventive Maintenance		SSO Follow-up: Debris cleared from sewer main indicates that blockage occurred due to build up of FOG and physical debris in the sewer main. Users upstream of the SSO site are: 1) SLO County Animal Services; 2) Woods Humane Society; and 3) SLOC Honor Farm laundry and food preparation facilities. Plans are being made to update these facilities to FOG issues and BMPs to reduce their impacts on the collection system. Request to Wastewater Operations to inspect sewer main via CCTV to determine if further actions need to be undertaken.  	1. Scheduling with FOG program to provide education to users to reduce FOG disposal to collection system. 2. Scheduling with Wastewater Operations to CCTV sewer main.	11/20/2023 17:00	Blockage of the sewer main was resolved on day of incident. Primary cause of SSO was determined to be FOG and debris clogging the sewer main. Blockage was cleared by jetting and vacuuming the sewer main using a Vactor.	N												N													
5S	5SSO10867	Active	Arbuckle CS	Arbuckle PUD	891295	1.3	Work In Progress						Monthly Category 3 Spill	Orchard adjacent to WWTP	10/28/2023 17:00	10/28/2023 17:10	10/28/2023 16:00				Spill originated from the wastewater treatment plant. A power outage casued the influent pumps to fail which caused the emergency overflow pond to overflow the berm. The spill entered the adjacent orchard.	39.030018	-122.056873	Other (specify below)	Emergency overflow pond		200	Water spilled out of the emergency pond and went outside of the fence to the adjacent orchard dirt access road.  The water depth was approximately 2 inches along 60 feet of road.	N						0	Unpaved Surface		Water spilled out of the emergency pond and went outside of the fence to the adjacent orchard dirt access road.  The water depth was approximately 2 inches along 60 feet of road.	Y	39.030018	-122.056873							10/28/2023 17:15	Volume was estimated based on spill area and depth of water. Spill area approximately 3 feet wide and 60 feet long with a water depth of 2 inches.	Spill start time estimated from spill volume upon arrival and influent flow rates. Spill end time observed on site.	Pump Station Failure - Power		Pump Station - Power		Ductile Iron		71	Impact contained on private dirt road with no public accsess. Property owner was aware and because the spill did not reach the trees in the orchard and only reached the road, no action was needed.  	N	Property Owner Notified; Restored Flow		We restored power to the pumps. Water stopped flowing out of the fence area and back to ponds. Water was absbored into the dirt road so no recovery was nessesary. 	Repaired Facilities or Replaced Defect		Reset the breaker and investigating power outage notification equipment.  		10/28/2023 17:30	No ongoing investigation. Power outage was caused by car collision into utility pole. Investigating power outage notification equipment.		No ongoing investigation.	10/28/2023 17:30														n/a	Power outage equipment needed to prevent future reoccurence.	Power outage equipment needed to prevent future reoccurence.	Power outage equipment needed to prevent future reoccurence.	Reset the breaker.	Power outage equipment needed to prevent future reoccurence.	Reset the breaker and investigating power outage notification equipment.	Reset the breaker and investigating power outage notification equipment.	No ongoing investigation.	
5S	5SSO20010	Active	Arbuckle CS	Arbuckle PUD	891295	1.3	Work In Progress						Monthly Category 3 Spill	Orchard adjacent to WWTP	10/28/2023 17:00	10/28/2023 17:10	10/28/2023 16:00				Spill originated from the wastewater treatment plant. A power outage casued the influent pumps to fail which caused the emergency overflow pond to overflow the berm. The spill entered the adjacent orchard.	39.030018	-122.056873	Other (specify below)	Emergency overflow pond		200	Water spilled out of the emergency pond and went outside of the fence to the adjacent orchard dirt access road.  The water depth was approximately 2 inches along 60 feet of road.	N						0	Unpaved Surface		Water spilled out of the emergency pond and went outside of the fence to the adjacent orchard dirt access road.  The water depth was approximately 2 inches along 60 feet of road.	Y	39.030018	-122.056873							10/28/2023 17:15	Volume was estimated based on spill area and depth of water. Spill area approximately 3 feet wide and 60 feet long with a water depth of 2 inches.	Spill start time estimated from spill volume upon arrival and influent flow rates. Spill end time observed on site.	Pump Station Failure - Power		Pump Station - Power		Ductile Iron		71	Impact contained on private dirt road with no public accsess. Property owner was aware and because the spill did not reach the trees in the orchard and only reached the road, no action was needed.  	N	Property Owner Notified; Restored Flow		We restored power to the pumps. Water stopped flowing out of the fence area and back to ponds. Water was absbored into the dirt road so no recovery was nessesary. 	Repaired Facilities or Replaced Defect		Reset the breaker and investigating power outage notification equipment.  		10/28/2023 17:30	No ongoing investigation. Power outage was caused by car collision into utility pole. Investigating power outage notification equipment.		No ongoing investigation.	10/28/2023 17:30														n/a	Power outage equipment needed to prevent future reoccurence.	Power outage equipment needed to prevent future reoccurence.	Power outage equipment needed to prevent future reoccurence.	Reset the breaker.	Power outage equipment needed to prevent future reoccurence.	Reset the breaker and investigating power outage notification equipment.	Reset the breaker and investigating power outage notification equipment.	No ongoing investigation.	
5S	5SSO11082	Active	West Sacramento CS	West Sacramento City	891298	1.4	Certified	Robert Santos	Superintendent		28-AUG-24	28-AUG-24	Monthly Category 3 Spill	1501 West Capitol Ave.	09/05/2023 10:36	09/05/2023 10:45	09/05/2023 10:36				flowed from cleanout into the gutter, flowed 220' down gutter.	38.58023	-121.52785	Lateral Clean Out (Public)		N/A	92	n/a	N						92	Street/Curb and Gutter (2 3)		gutter	N									09/05/2023 10:50	L x W x D x 7.48	Time called in	Debris from Lateral; Debris-wipes/Non-disposables		Lower Lateral		Vitrified Clay		20	little to no impact	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Used Vac-Con to clean and pick up.	Other (specify below)	Advised to stop flushing wipes	n/a		09/05/2023 13:34	Spill was caused by wipes		n/a	09/05/2023 13:34														n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a	
5S	5SSO11082	Active	West Sacramento CS	West Sacramento City	891299	1.9	Certified	Robert Santos	Superintendent		27-DEC-23	27-DEC-23	Monthly Category 3 Spill	1921 Proctor Ave.	09/21/2023 09:15	09/21/2023 09:45	11/21/2023 09:15				spill originated at the property cleanout.	38.57736	-121.53506	Lateral Clean Out (Public)			257	flowed from cleanout to the gutter	N						257	Street/Curb and Gutter (2 3)		gutter in front of property	N									09/21/2023 10:00	L x W x D x 7.48	When we were notified and when we restored flow	Debris from Lateral; Debris-wipes/Non-disposables		Lower Lateral		Vitrified Clay		55	Little to no impact	N	Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		used Vaccon to recover sewer and clean curb/gutter	Other (specify below)	Advised to stop flushing wipes	advised to stop flushing wipes		09/21/2023 10:30	found that the cause was occupants flushing wipes		n/a	11/21/2023 10:30														n/a	n/a	n/a	n/a	inspected	n/a	n/a	n/a	n/a	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	891300	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		17-APR-24	17-APR-24	Monthly Category 3 Spill	4050 South Crenshaw Boulevard	11/20/2023 14:06	11/20/2023 14:34	11/20/2023 14:06				The initial crew arrived at 2:34P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.010507	-118.334658	Inside Building or Structure			70	Sanitary Sewer Overflow.	N						70	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	34.010507  -118.334658	Y	34.010507	-118.334658							11/20/2023 15:30	The SSO volume was estimated utilizing a standardized template which calculates the volume by using dimensional analysis.	Volume of a spill contained in a rectangular area Length20feet Width10feet Depth0.08inches0.0067feet  1.33ft310gallons  Volume of a spill contained in a rectangular area Length100feet Width10feet Depth0.08inches0.0067feet  6.67ft350gallons  Volume of a spill contained in a rectangular area Length20feet Width10feet Depth0.08inches0.0067feet  1.33ft310gallons 	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		94	On Monday, November 21, 2023 at 2:06 PM, the Clean Water Conveyance Division (CWCD) received a report of sewer trouble at 4050 South Crenshaw Boulevard (TG 673-E3). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 3:30 PM. The cause of the blockage was attributed to Fats, Oils, and Grease (FOG) accumulation. All necessary clean-up was then performed.  It was estimated that approximately 70 gallons of sewage backed out of the sewer as a result of the blockage where it entered the property at 4050 South Crenshaw Boulevard. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		On Monday, November 21, 2023 at 2:06 PM, the Clean Water Conveyance Division (CWCD) received a report of sewer trouble at 4050 South Crenshaw Boulevard (TG 673-E3). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 3:30 PM. The cause of the blockage was attributed to Fats, Oils, and Grease (FOG) accumulation. All necessary clean-up was then performed.  It was estimated that approximately 70 gallons of sewage backed out of the sewer as a result of the blockage where it entered the property at 4050 South Crenshaw Boulevard. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.		11/20/2023 15:30	On Monday, November 21, 2023 at 2:06 PM, the Clean Water Conveyance Division (CWCD) received a report of sewer trouble at 4050 South Crenshaw Boulevard (TG 673-E3). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 3:30 PM. The cause of the blockage was attributed to Fats, Oils, and Grease (FOG) accumulation. All necessary clean-up was then performed.  It was estimated that approximately 70 gallons of sewage backed out of the sewer as a result of the blockage where it entered the property at 4050 South Crenshaw Boulevard. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   		None At This time.	11/20/2023 15:30														None At this time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	None At this time.	None At this Time.	None At this Time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	None At This time.	
5S	5SSO11362	Active	SMD No. 2 CS	Placer Cnty Dept of Facility Services	891301	1.2	Certified	Robin Mahoney	Utilities Program Manager		22-NOV-23	22-NOV-23	Monthly Category 3 Spill	Auburn Folsom Rd. directly across from Boren Lane. Granite Bay Ca. 95746	11/20/2023 14:55	11/20/2023 15:20	11/20/2023 14:50				Near manhole H16-28	38.77711	-121.15008	Gravity Mainline			204	Wastewater percolated out of soil onto a paved area, then ran down pavement 230� into a D.I. where we recovered it. Wastewater did not enter a water body.	N						197	Other (specify below); Paved Surface; Unpaved Surface	Separate storm drain (D.I.) - does not discharge to surface water	Wastewater percolated out of soil onto a paved area, then ran down pavement 230� into a D.I. where we recovered it. Wastewater did not enter a water body.	Y	38.77711	-121.15008							11/20/2023 15:40	The spill was calculated with the formula L X W X D X 7.48. The recovered amount is a reasonable estimate calculated by residual loss on a paved surface.        	Based on time of call reporting spill, eye witness account, and onsite recorded completion time	Pipe Structural Problem/Failure - Installation		Gravity Mainline		Ductile Iron		38	Negligible	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Vacuum truck recovery, wash down water, and clean-up of debris.	Inspected Sewer Using CCTV to Determine Cause		Section of failed gravity line removed and replaced		11/20/2023 15:45	N/A		N/A	11/20/2023 15:40														N/A	N/A	N/A	Section of failed gravity line removed and replaced	Section of failed gravity line removed and replaced	N/A	N/A	N/A	N/A	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	891304	1.4	Certified	Ameal McLaurin	Sewer Supervisor 2		22-NOV-23	22-NOV-23	Monthly Category 3 Spill	4374 Terrabella Way, Oakland Ca	11/16/2023 14:43	11/16/2023 15:30	11/16/2023 10:52				Manhole on Easement in the rear of the property was overflowing, the sewage soaked into the soil.	37.79654	-122.17889	Manhole			323	Manhole on Easement in the rear of the property was overflowing, the sewage soaked into the soil.	N						0	Unpaved Surface		Manhole on Easement in the rear of the property was overflowing, the sewage soaked into the soil.										11/16/2023 16:15	1 GPM x 323 Minutes = 323 Gallons	Start time was based on eyewitness account, sewer contractor crews rehabbing the sanitary sewer lines in the area. The end time was based on the responding sewer crew restoring the flow. 	Root Intrusion		Gravity Mainline		Polyvinyl Chloride (PVC)		25	Manhole on Easement in the rear of the property was overflowing, the sewage soaked into the soil.	N	Restored Flow		The water soaked into the soil. Therefore, there wasn't any cleanup.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Mainline has been placed on 6-month high preventative maintenance program, W.O. #1479272		11/16/2023 21:30	CCTV inspection of the mainline showed root intrusion within the mainline. Mainline has been placed on 6-month high preventative maintenance program, W.O. #1479272		N/A	11/16/2023 21:30														N/A	Mainline has been placed on 6-month high preventative maintenance program.	Mainline has been placed on 6-month high preventative maintenance program.	N/A	Mainline has been CCTV inspected on 11/16/23.	N/A	Mainline has been CCTV inspected on 11/16/23, W.O. # 1478215. Mainline has been placed on 6-month high preventative maintenance program, W.O. #1479272	Mainline has been placed on 6-month high preventative maintenance program, W.O. #1479272	N/A	
5S	5SSO11084	Active	White Slough Water Poll Con Pu CS	Lodi City	891311	1.2	Certified	Andrew Richle	Utilities Superintendent 		22-NOV-23	22-NOV-23	Monthly Category 3 Spill	321 Turner Road, Lodi CA	10/26/2023 09:23	10/26/2023 09:29	10/26/2023 09:15				Sewer main was plugged with rags originating from assisted living facility. Spill was coming from closest manhole, to street, curb and gutter; ending in closest storm drain catch basin. Downstream storm manhole was verified to ensure spill was contained. See attached photos	38.14602	-121.27759	Manhole			163	Sewer main was plugged with rags originating from assisted living facility. Spill was coming from closest manhole, to street, curb and gutter; ending in closest storm drain catch basin. Downstream storm manhole was verified to ensure spill was contained. 	Y	See attached.	13				163	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		Sewer main was plugged with rags originating from assisted living facility. Spill was coming from closest manhole, to street, curb and gutter; ending in closest storm drain catch basin. Downstream storm manhole was verified to ensure spill was contained. 										10/26/2023 09:51	Estimated volume of spill discharge and volume of spilled recovered.  Used calculations to determine volume of spill (gutter and catch basin).	Relied on customer/witness of the origin of spill and first-hand knowledge of staff responding to spill. 	Debris-Rags		Gravity Mainline		Vitrified Clay		45	Temporary public health impact to street and gutter. No environmental impact as storm sump and main was isolated and cleaned. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Upon arrive contained spill. No active flow observed form manhole. Restored flow by cleaning gravity main using combination truck. Cleaned street, gutter, storm catch basin and line using combination truck. All spill captured and returned to sewer system. Documented all activities. 	Other (specify below)	Public outreach	Notified customers about heavy rags and non-flushable wipes contributing to spill. Increase observation and cleaning schedule to prevent reoccurrence. 		10/26/2023 11:00	Sewer main was plugged with rags originating from assisted living facility. Spill was coming from closest manhole, to street, curb and gutter; ending in closest storm drain catch basin. Downstream storm manhole was verified to ensure spill was contained. 		N/A	10/26/2023 11:00														N/A	Increase observation and cleaning schedule. 	Increase observation and cleaning schedule. 	N/A	N/A	N/A	N/A	N/A	N/A	
2	2SSO10184	Active	San Rafael SD CS	San Rafael Sanitation District	891321	1.2	Certified	Doris Toy	District Manager	22-NOV-23	04-MAR-24	04-MAR-24	Category 1 Spill	902 3rd St.	11/17/2023 11:15	11/17/2023 11:34	11/17/2023 11:44	11/17/2023 11:15	23-7162		The volume we reported to CalOes was incorrect.  Our technician made a mistake in his math.  It was reported as 3,000 gallon overflow but it was actually 505 gallons.	37.972135	-122.526096	Inside Building or Structure; Lateral Clean Out (Private)	The pet store noticed it backing up into their dog wash basins at 10:03 	The spillage was observed coming out of the pet stores cleanout	505	Our technician observed water leaving the cleanout at 5 gallons per minute	Y	When he attempted to calculate the volume he used 600 minutes times 5 gpm.  He should have used 101 minutes since the start time was at 10:03 and stop time was 11:44	0	0	We were initially instructed by the Marin County Environmental Health Services to take samples and place signage around the downstream waterway.  The following Monday when we reported to EHS of the math mistake they instructed us to cease sampling and remove signage.  Also taken into consideration was 2.5 to 3 inches of rain had fallen over the weekend.  	505	0	Surface Water		San Rafael Creek at old corp yard pump station	Y	37.970393	-122.523416							11/17/2023 11:44	spill started at 10:03 and ended at 11:44 equaling total run time at 1011 minutes times 5 gallons per minute overflow rate	District technician witnessed spill exiting cleanout at 5 gallons per minute	Debris-Rags; Fats, Oil and Grease (FOG); Pipe Structural Problem/Failure - Installation	This pipe was recently replaced and installed with reverse grade which resulted in fog and rag buildup.  	Gravity Mainline		Polyvinyl Chloride (PVC)		1	spill exited cleanout and entered nearby storm drain catch basin which flows to storm water pump station at San Rafael Creek	N	Restored Flow		After restoring flow our crews cleaned street curb and gutter.  Then vactored storm catch basin and drainage pipe.	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		ongoing talks with contractor	Unknown at this time.  Waiting for contractor and inspectors notes, pictures and cctv footage	11/17/2023 15:00	Our crews CCTV'd pipe and found new installed pipe underwater.  We then consulted with engineering who confirmed that 16 feet of pipe upstream of rebuild manhole had been replaced.  I asked how and why they replaced new pipe with reverse grade.  Engineering is following up with contractor and inspection company.  	Y	Why was this pipe installation accepted.	01/31/2024 12:00	San Rafael Creek	Slough		quarter mile downstream of this creek is where the San Rafael Canal begins	no impact observed	Other (specify below)	There is no place for the public to access the creek or canal	Marin County Environmental Health Services	0	N	N											Why was this pipe installation accepted.	
2	2SSO10104	Active	Ccsf - San Francisco Airport CS	CCSF - San Francisco Airport	891323	1.1	Amended	Jennifer Acton	Director of Maintenance		22-NOV-23	22-NOV-23	Monthly Category 3 Spill	Gates D2 & D3 Sewage Ejector Pump Station	10/29/2023 23:33	10/29/2023 23:35	10/29/2023 23:18				Spill originated from sewage ejector pump station wet well located between aircraft Gates D2 and D3.  	37.61725	-122.38196	Pump Station			402	Spill impacted the paved ground surface around the pump station wet well, impacted the paved ground surface of the airfield ramp Gates G1 and G2, and affected (4) downgradient storm drain catch basins located on the airfield ramp and aircraft taxilane. 	Y	The spill reached (4) downgradient storm drain catch basins, but did not flow out or downstream of the catch basins.  All wastewater that entered the catch basins collected at the bottom of each catch basin and below the outlet pipe.	98				402	Drainage Conveyance System; Paved Surface		Spill impacted the paved ground surface around the pump station wet well, impacted the paved ground surface of the airfield ramp Gates G1 and G2, and affected (4) downgradient storm drain catch basins located on the airfield ramp and aircraft taxilane. 	Y	37.61725	-122.38196	37.61717	-122.38227	37.615859	-122.382298	37.61632	-122.382298	10/29/2023 00:07	Spill volumes were calculated using area/volume calculation method.  Airport Spill Team responded to incident on 10/29/23 and collected field measurements of the impacted paved ground surface areas to perform volume calculations.  Field measurements of the amount of wastewater that entered the storm drain catch basins was performed on 11/3/23 due to limited access to the airfield taxilane on the day of spill.  Airfield Operations requires coordinated access to minimize the impact to Airfield Operations.	Field measurements of the affected paved ground surface and affected storm drain catch basins were collected  by responding Airport Spill Team member.	Pump Station Failure - Power		Pump Station - Power		Other (specify below)	Not Applicable, not a pipe.  Failure was due to a pump station power failure.	0	Spill impacted the paved ground surface around the pump station, the downgradient paved ground surface, and (4) downgradient storm drain catch basins.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Airport Central Plant personnel restored power to pump station, reset circuit breaker and restored flow.  Airport scrubbing contractor cleaned the impacted paved ground surface.  Airport Plumbers pumped out and cleaned each of the affected storm drain catch basins.  All wastewater was returned to the Airport's sanitary system for processing.	Repaired Facilities or Replaced Defect		Power restored to pump and flow restored.  Redundant pump was installed on 11/20/2024.		11/03/2023 01:30	Spill caused by power failure to sewage ejector pump station submersible pump.  Circuit breaker reset and flow restored.		NA	10/29/2023 00:07														NA	NA	NA	NA	NA	NA	NA	NA	NA	
2	2SSO10179	Active	San Jose City CS	San Jose City	891324	1.2	Certified	Ben Nguyen	Senior Engineer	22-NOV-23	05-DEC-23	05-DEC-23	Category 1 Spill	The Willow Street Pump Station	11/20/2023 12:09	11/20/2023 13:00	11/19/2023 12:00	11/21/2023 10:35	23-7223		The spill location is a sanitary pump station.  Crew discovered water was leaking out of the forced main which was attached under a bridge. Water dripped down to the embankment and into the river. 	37.3144	-121.88992	Force Main			1725	Spill appearance point is along the forced main on the north embankment of the river. The forcemain is attached to the east side of the bridge of Willow Street over the Guadalupe River. 	N	The spill directly dripped into the river and did not impact the drainage conveyance system.  	0	0	Since the forced main of the pump station is attached to the side of the Willow street bridge over the Guadalupe River, water discharged directly to the water surface.  	1750	0	Surface Water		Water directly dripped into the river.  	Y	37.31439	-121.88989							11/20/2023 11:40	Volume was estimated by the hours that the pump was activated extracted from SCADA data.  And staff simulated the dripping rate with water hose and bucket which was about 5 gpm. Total hours that pump operated was 5.75 hrs (or 345 min).    	The assumption was the simulation of the dripping rate into a bucket and staff times the filling of the bucket.  	Vandalism (specify below)	The damaged appeared to be burn with some heat.  Pipe appears to be melted.  Aslo staff noticed that the area was scattered with homeless encampments.  	Force Main		Other (specify below)	HDPE with secondary containment.  	10	Spill directly discharged into the river.  Staff investigated the water way and found no adverse impact.  	N	Cleaned Up (specify below); Other (specify below)	Staff turned off the pump and performed repair.  There was a upstream bypass system to keep water flowing. City's staff is planning to replace the entire forced main.  	Containment was not feasible since water directly dripped into the river.  	Plan Rehabilitation or Replacement of Sewer		Staff will work with Beautify San Jose to address homeless issue in the area.  	Schedule for mile stone is in the progress.  	11/20/2023 16:00	Cause was  vandalism  because there was clear evidence that the forced main was burned. 	N			Guadalupe River 	River		The Guadalupe River mainstem is an urban, northward flowing 14 miles through the Santa Clara Valley originated in the Santa Cruz Mountains. The river mainstem begins on the Santa Clara Valley floor when Los Alamitos Creek exits Lake Almaden and joins Guadalupe Creek just downstream of Coleman Road in San Jose, California. From here it flows north through San Jose, where it receives Los Gatos Creek, a major tributary. The Guadalupe River serves as the eastern boundary of the City of Santa Clara and the western boundary of Alviso, and after coursing through San Jos�, it empties into south San Francisco Bay at the Alviso Slough.	No observed impact to aquatic life. 	Other (specify below)	N/A	Valley Water	0	N	N												
2	2SSO10177	Active	San Carlos City CS	San Carlos City	891327	1.2	Certified	Steven J. Machida	Public Works Director	22-NOV-23	06-DEC-23	06-DEC-23	Category 2 Spill	3331 Brittan	11/21/2023 09:05	11/21/2023 09:24	11/21/2023 08:47		-		Located in front of the address listed and came up from 2 separate manholes.	37.481915	-122.285963	Manhole		2 manholes on same street	2200	Photos and videos attached show spill area and flow from manhole.	Y	Storm drain that entered a private swale then is discharged to a hillside. 	0	0			73	Drainage Conveyance System; Street/Curb and Gutter (2 3); Unpaved Surface	Once spill exited the storm system, it went to a private swale and onto a dirt hillside	Spill was on the street around the two manholes BR/42 and BR/45. They entered storm DIs CB/74 and CB/75 that do not flow to water	Y	37.482177	-122.286336							11/21/2023 09:52	Flow and duration were used along with area volume method converting into gallons	Interview with the resident who first noticed the spill	Root Intrusion		Gravity Mainline		Other (specify below)	PE	15	Spill impacted the street and a private swale and hillside plus a storm system that doesn't flow to water	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Used Vac truck to stop the spill from continuing while getting the line open.	Area was all vacced and pressured washed after the spill and partial was returned to the sewer system. During the spill the vac truck was used to stop the spill while the blockage was cleared.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		CCTV was used to find root intrusion. The power rodder and jetter were used. Cleaning schedule was moved from 12 months to 6 months and we will possibly have line repaired. 	N/A	11/21/2023 11:27	Spill was caused by root ball in PE line. Corrective action has been taken to reduce the chance of future spills.	N												N													
2	2SSO10200	Active	Sunnyvale CS	Sunnyvale City	891328	1.2	Certified	Winola Cheong	Senior Engineer		22-NOV-23	22-NOV-23	Monthly Category 3 Spill	281 Morse Av	10/08/2023 10:13	10/08/2023 10:25	10/08/2023 09:58				See attached Photos 	37.38201	-122.02296	Gravity Mainline; Manhole		N/A 	110	See Attachments 	N						110	Paved Surface	Residential Street 	Intersection Of Morse Ave Cross street of Banning Ave. Paved Street. 	Y	37.3818	-122.02202	37.34534	-122.00444	37.34543	-122.00486			10/08/2023 10:53	Eyeball Method using Container size. 2�55-gallon drums 	Visual inspection based on Spill training exercises. Volume calculated based on volume of water on the ground.  Time based on Time Call was received and time stoppage was relieved.    	Fats, Oil and Grease (FOG)		Gravity Mainline; Manhole	Manhole # 391 Block Map # 220	Vitrified Clay		60	Sewage in public right of way 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Used Spill shark to absorb spill and contain. Disinfected with Liquid Alive and Grenadier Plus both Cleaners, Disinfectant and Deodorizer on hard scape. Used combo truck to wash down all spill and recovered then returned to Sanitary sewer system. 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Grease chemical applied and Hydro Flushed Main 	Used Chemical to break own grease and Hydro Flushed main to eliminate. FOG  		10/08/2023 12:20	Grease identified during CCTV inspection followed by chemical treatment and Hydro Flushing 		N/A 	10/31/2023 12:48														N/A	Isolated event 	Hydro Flushing Program 	N/A 	N/A 	N/A 	See Hydro Flushing list 	Stand BY personal responded to call phoned in for assistance and completed spill response plan per SOPs. 	N/A 	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	891331	1.5	Certified	Kent Vian	Asst. Deputy Director	22-DEC-23	08-JAN-24	08-JAN-24	Category 2 Spill	NOT-40201035683-TOWNE CENTER RD & RANASSANCE AVE.	11/24/2023 15:06	11/24/2023 15:35	11/24/2023 15:01	11/24/2023 17:48	23-7265		SPILL ORIGINATED IN THE THE INTERSECTION OF TOWNE CENTER RD & RANASSANCE AVE NORTH OF NOBEL DR.	32.867	-117.20756	Gravity Mainline; Manhole	N/A	N/A	1575	SPILLED EXITED FROM MANHOLE FLOW SOUTH EAST & SOUTHWEST ENTERING TWO SEPARATE DRY STORM DRAINS CONYEYANCE CHANNEL AND SETTLING IN THE DIRT AND GRASS AREA.	Y	THE DRAINAGE CONEYANCE SYSTEM TRANSPORTED THE SPILL EXITED INTO A DRY DIRT AREA.	1150	0			1150	Drainage Conveyance System; Street/Curb and Gutter (2 3)	N/A	SPILL DESTINATION SPREAD INTO STORM DRAIN AT TOWNE CENTER DR & RANASSANCE .	Y	36.77826	-119.41793							11/24/2023 15:46	VISUAL CALCULATED METHOD.	START ASSUMPTIONS TIME IS WHEN CONSUMER CALLS STATION 38 THEN WE RECEIVE THE CALL AND RESPONDE.	Damage by Others Not Related to Collection System Construction/Maintenance; Debris-General	N/A	Gravity Mainline	N/A	Vitrified Clay	N/A	48	SPILL IMPACT STREET,CURB,GETTERS AND STORM DRAIN.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	N/A	SPILL RESPONDED RELIVEVED BLOCKAGE IN GRAVITY MAIN TOOK PICTURES WASH UP AREA AND CCTV MAINS.	Adjusted Schedule/Method of Preventive Maintenance	N/A	SPILL CORRECTION ACTION IS TO ADJUST SCHEDULE FREQUENCY.	N/A	11/24/2023 10:59	N/A	N		12/22/2023 11:07										N													
2	2SSO10179	Active	San Jose City CS	San Jose City	891332	1.1	Certified	Ben Nguyen	Senior Engineer		30-NOV-23	30-NOV-23	Monthly Category 3 Spill	301 S First St San Jose CA 95113	10/20/2023 14:00	10/20/2023 15:00	10/20/2023 14:00				SSO was discovered by City's maintenance staff at about 2PM on 10/20/23 near the address 301 S First St.   City's maintenance crew noticed sewer spill around a damaged hose which was part of the overland diversion system to support an emergency sewer pipe repair.  Water did not reach the nearby catch basin connected to MS4. Additional staff was called to support the clean up effort.  	37.33145648	-121.8871309	Other Sewer System Structure	Pump hose that was part of a overland diversion was crossed by a construction vehicle and caused damage to the hose.   		68	Spill area was less than a traveled lane width and a few car length.  The spill occurred in area which was closed off to traffic.  Water did not reach the storm drain inlet.   	N	Water did not reach storm drain inlet. 					68	Paved Surface; Street/Curb and Gutter (2 3)		SSO was discovered by City's maintenance staff at about 2PM on 10/20/23 near the address 301 S First St.   City's maintenance crew noticed sewer spill around a damaged hose which was part of the overland diversion system to support an emergency sewer pipe repair.  Crew immediately called support the clean up effort. Upon arrival, crew placed sandbags at the catch basin, though water did not reached.  Crew shut off pumped, repaired the damaged hose, cleaned up, and turned the pump back on.   	Y	37.33145648	-121.8871309							10/20/2023 15:00	Volume was estimated based on area measurement method. The area is less than one traveled lane width and a few car in length. 	Volumed was estimated based on measurements of the spill area performed by the first responder.  The First Responder took video and pictures of the spill area.  Crew used tape measure and measuring wheel to measure the spill area. These dimensions were used to estimate the spill volume.    	Construction Diversion Failure		Other (specify below)	Portable pump damaged hose	Other (specify below)	Foldable hose for overland diversion pump	10	Spill area was less than a traveled lane width and a few car length.  The spill occurred in area which was closed off to traffic.  Water did not reach the storm drain inlet.  Most of spilled was on pavement surface, was cleaned up and returned to sani system. There is no impact to traveling public nor natural water way.   	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		The Crew replaced the damaged hose and performed cleaning up of the affected area. Next, the Crew onsite washed down and recovered all of the sewage along with induced water from the point of containment.  All of the spill on land/road was cleaned up and returned to the collection system. 	Other (specify below)	Crew replaced the damage hose.  	Crew replaced damage hose Crew met and remind construction staff not to drive over the hose 		10/20/2023 15:00	n/a		n/a	11/08/2023 15:00														NA	NA	NA	NA	Replaced hose	n/a	n/a	n/a	n/a	
8	8SSO10636	Active	Colton Water Reclamation Facility CS	Colton City	891348	1.2	Certified	mario arredondo	Collections Supervisor		28-NOV-23	28-NOV-23	Monthly Category 3 Spill	1735 e washington blvd	11/27/2023 11:00	11/27/2023 11:20	11/27/2023 10:50				8  vcp in apartment easement.	34.04867	-117.29656	Gravity Mainline; Manhole			200	8' vcp sewer main blockage caused by grease	N						180	Other (specify below); Paved Surface	parking structure	spill contained in paved parking area		34.04867	-117.29656							11/27/2023 11:30	Math formula	Math formula	Fats, Oil and Grease (FOG)		Gravity Mainline; Manhole		Vitrified Clay		60	Minor	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned Portion of Spill to Sanitary Sewer System		Vactor/ jet truck. Jetted to relief plug of grease. Used vactor truck for clean up.	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source		CCTV and adjust maintenance program.		11/27/2023 06:56	FOG		no	11/28/2023 12:00														none	CCTV	Will monitor	no	no	no	yes	yes	no	
5S	5SSO10865	Active	Angels Camp CS	Angels City	891349	1.1	Certified	Dave Richard	City Engineer � Water/Wastewater		28-NOV-23	28-NOV-23	Monthly Category 3 Spill	856 Tuolumne Avenue	11/13/2023 11:30	11/13/2023 11:45	11/13/2023 11:00				See attached	38.07294	-120.55339	Manhole			500	Approx 1,000 sq ft.	N						250	Unpaved Surface		Unpaved surface										11/13/2023 12:00	visual	visual	Fats, Oil and Grease (FOG)		Manhole		Polyvinyl Chloride (PVC)		30	negligible	N	Cleaned Up (specify below)		hydrovac and disinfection	Adjusted Schedule/Method of Preventive Maintenance		Regular monitoring and flushing if needed		11/13/2023 12:00	Notification to property owners of allowable discharges to sewer		Outreach to property owners	12/08/2023 12:00														none	Regular monitoring and flushing if needed	Regular monitoring and flushing if needed	n/a	n/a	n/a	Regular monitoring and flushing if needed	Photographic document of spill and cleanup	Outreach to property owners	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	891352	1.3	Certified	Ameal McLaurin	Sewer Supervisor 2		28-NOV-23	28-NOV-23	Monthly Category 3 Spill	400 29th Street, Oakland Ca	11/21/2023 16:48	11/21/2023 18:00	11/21/2023 13:00				Building basement was flooded, the sewage spilled from the floor drains inside the basement.	37.81813	-122.26527	Inside Building or Structure			635	Building basement was flooded, the sewage spilled from the floor drains inside the basement.	N						635	Building or Structure		Building basement was flooded, the sewage spilled from the floor drains inside the basement.										11/21/2023 18:25	20'L x8'W x .08' D x 7.48-Gal = 96 Gallons 45'L x 20'W x .08'D x 7.48-Gal = 539 Gallons 96 + 539 = 635 Gallons	Start time was based on witness account, the building maintenance crew was the calling party. The end time was based on the responding crew when they restored the flow.	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		90	Building basement was flooded, the sewage spilled from the floor drains inside the basement.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		The responding crew restored the flow, the sewage drained back to the sewer system, the maintenance crew cleaned the basement floor.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Dig tag work orders were created to dig and repair the mainline.	Dig tag work orders were created to dig and repair the mainline. 6-Month high frequency flushing work order was created.		11/28/2023 08:30	CCTV inspection found roots and FOG to be the cause of the overflow.		N/A	11/28/2023 08:30														N/A	Dig tag work orders were created to dig and repair the mainline. 6-Month high frequency flushing work order was created.	6-Month high frequency flushing work order was created.	Dig tag work orders were created to dig and repair the mainline. 	CCTV inspection of the mainline has been completed. Dig tag work orders were created to dig and repair the mainline. 	N/A	Dig tag work orders #1480022 and 1480033 were created to dig and repair the mainline. 6-Month high frequency flushing #1480069 work order was created.	Dig tag work orders #1480022 and 1480033 were created to dig and repair the mainline. 6-Month high frequency flushing #1480069 work order was created.	N/A	
2	2SSO10172	Active	Ross Valley Sanitary District CS	Ross Valley SD	891354	1.2	Certified	Paul Bruemmer	O&M Manager 	28-NOV-23	08-DEC-23	08-DEC-23	Category 1 Spill	Edna Ct x Wolf Grade, Greenbrae, CA	11/26/2023 13:27	11/26/2023 14:15	11/26/2023 13:27	11/26/2023 15:12	23-7282		At the intersection of Edna Ct X Wolf Grade, a sewer spill surfaced at District MH G 341.020 and travel approximately 214' down the curb and gutter and entered the county storm drain system. 	37.95376	-122.5376	Manhole			442	At the intersection of Edna Ct X Wolf Grade, a sewer spill surfaced at District MH G 341.020 and travel approximately 214' down the curb and gutter and entered the county storm drain system. 	Y	Storm drain drainage inlet in the gutter pan of the street. 	0	200	 District MH G 341.020 and travel approximately 214' down the curb and gutter and entered the county storm drain drainage inlet. 	200	0	Drainage Conveyance System that discharges to surface water		At the intersection of Edna Ct X Wolf Grade, a sewer spill surfaced at District MH G 341.020 and travel approximately 214' down the curb and gutter and entered the county storm drain system. At this point it is unclear how far the spill traveled through the storm drain system, as it was holding water from previous rain. Based on spill flow rate calculations and spill estimates from the pavement, employees estimate about half the spill entered the first storm drain drainage inlet. 	Y	37.95399	-122.53802							11/26/2023 14:27	Spill volume estimates were based of a combination of our District spill chart overflow reference guide and measurements and calculations based on area/dept of material on the ground. 	Spill start time was based off witness accounts and industry knowledge of volume of spill that came from the MH. The spill end time was based on the time the blockage was broken. 	Root Intrusion		Gravity Mainline		Vitrified Clay		73	There was no impact to public, wildlife, or the environment as a result of the spill. 	N	Cleaned Up (specify below); Contained All or Portion of Spill		Upon arrival, the crew flushed from the downstream MH G340.010 to the upstream MH G341.020(overflowing), a distance of approximately 95'. The crew encountered several joints within that distance that had  soft  root blockages. Once the blockages were broke, the crew checked the storm drain system and found that the spill had entered the first drainage inlet approximately 214' from the overflowing MH. They traced the spill through the downstream storm drain inlets. All the storm drain inlets were wet from previous rain. The storm drain system ultimately drains into the   Corte Madera creek. The crew then checked the upstream storm drain inlet and it was wet with storm water as well. The crew concluded that much of the water in the storm drain system had previously been there before the spill. The crew washed down the street recovering washdown volume and spilled sewage.   the downstream storm drain system was flowing from and staff was unable to capture lost spill volume. 	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer	this line will be added to FY23/24 improvement project for replacement. 	After CCTV inspection, the District has planned to add the replacement of this 95' of VCP with HDP pipe in our 2024 upcoming capital budget year. 	11/26/2023- 13:27- District notified  13:27- CSW dispatched 14:15- CSW arrived 14:27- spill ended	11/26/2023 14:25	CCTV inspection showed several VCP joints with root intrusion. 	N			Corte Madera Creek 	Stream/Creek		Seasonal creek 	None	Other (specify below)	None	NA	0	N	N												
4	4SSO10421	Active	Redondo Beach City CS	Redondo Beach City	891356	1.1	Certified	Geraldine Trivedi	Civil Engineer		28-NOV-23	28-NOV-23	Monthly Category 3 Spill	805 Blossom Lane	10/30/2023 10:31	10/30/2023 10:46	10/30/2023 10:30				Sewage seeping out of a street manhole.	33.5143	-118.2229	Manhole			69	The spill flowed into the gutter and entered a stormdrain catch basin, however it was 100% recovered from the street and stormdrain.	Y	The spill flowed into the gutter and entered a stormdrain catch basin, however it was 100% recovered from the street and stormdrain.	69				69	Drainage Conveyance System; Street/Curb and Gutter (2 3)		The spill flowed into the gutter and entered a stormdrain catch basin, however it was 100% recovered from the street and stormdrain.	Y	33.8291	-118.2229							10/30/2023 11:06	Spill rate was calculated with estimated flow rate from manhole and field measurement of spill in gutter/street.	Spill rate was calculated with estimated flow rate from manhole and field measurement of spill in gutter/street.	Root Intrusion		Gravity Mainline		Vitrified Clay		50	Impacts from the spill include street traffic impacts and crew resources to clean up and recover the SSO.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Returned all spill to the sanitary sewer.	Inspected Sewer Using CCTV to Determine Cause		Returned all spill to the sanitary sewer.		10/31/2023 10:37	Sewer crews used Vactor truck to locate and clear root blockage.  		non applicable	10/31/2023 10:37														non applicable	CCTV main line and add location to future root treatment schedule.	CCTV main line and add location to future root treatment schedule.	non applicable	CCTV main line and add location to future root treatment schedule.	non applicable	CCTV main line and add location to future root treatment schedule.	CCTV main line and add location to future root treatment schedule.	non applicable	
2	2SSO10216	Active	West County WW District CS	West County Wastewater District	891359	1.4	Certified	Gordon Times	Collection System Operations Department Manager	28-NOV-23	30-NOV-23	30-NOV-23	Category 1 Spill	Wiswall/Obrian	11/26/2023 10:26	11/26/2023 11:21	11/26/2023 09:59		-		Spill occurred @Manhole #19-02-11 at the intersection of Wiswall and Obrian Rd.	37.97174	-122.32141	Gravity Mainline; Manhole			440	See Attached pics of Manhole	Y	Storm Drain System	5	435	See Attached	435	5	Drainage Conveyance System that discharges to surface water		The spill entered a storm drain approximately 15ft from the spill MH and appearance point.	Y	37.9718	-122.32139							11/26/2023 11:27	The spill volume was calculated using the MH photo comparison method.  The estimated spill run time was 88 minutes x 5gpm=440 gallons.	See above.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		62	The spill impact was minimal as few solids reached the surface.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	The area was cleaned and sanitized with vacuum equipment, water a sanitizing solution. The effected manholes and storm drain was washed down and vacuumed out.	See above.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		CCTV inspection revealed heavy FOG in the line. We have increased the maintenance frequency from annually to six months.	See above.	11/28/2023 11:14	CCTV inspection revealed heavy FOG in the line.	N			NA	Other (specify below)	NA	NA	NA	Other (specify below)	NA	NA	0	N	N												
2	2SSO10177	Active	San Carlos City CS	San Carlos City	891361	1.3	Certified	Steven J. Machida	Public Works Director		28-NOV-23	28-NOV-23	Monthly Category 3 Spill	1000 Terminal	10/23/2023 11:54	10/23/2023 12:05	10/23/2023 11:53				Spill was at the intersection of Terminal and Bayport and traveled 314 feet east in the gutter	37.507373	-122.255045	Manhole			180	Spill traveled 314 east on Terminal 	N						180	Street/Curb and Gutter (2 3)		See below	Y	37.507558	-122.254815							10/23/2023 12:11	Rate of flow volume with SSCSC manhole spill gauge	Spill was flowing from manhole at estimated 10gpm 	Debris-General; Debris-Rags		Gravity Mainline		Vitrified Clay		75	Spill was only in the street, curb and gutter. No other impact	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Set up sandbags to stop flow from continuing down the street. Once open, used vac truck and hose to clean up area and vacuum area. Decant back into sewer system	Inspected Sewer Using CCTV to Determine Cause		CCTV and follow up  with hyrdojetting		10/23/2023 12:40	CCTV found intruding tap that may have contributed to the debris getting stuck.		NA	10/23/2023 14:08														NA	NA	6 month cleaning schedule	NA	NA	NA	NA	NA	NA	
2	2SSO10109	Active	Concord City CS	Concord City	891362	1.2	Certified	Pernise Seumanutusa	Public Works Supervisor		05-DEC-23	05-DEC-23	Monthly Category 3 Spill	2954 Glenside Drive	11/27/2023 16:00	11/27/2023 16:19	11/27/2023 16:00				manhole G14-206	37.99439	-122.04304	Manhole			120	water seeping from manhole infront of 2954 glenside drive	N						120	Paved Surface; Street/Curb and Gutter (2 3)		water was seeping from manhole on to paved surface and down curb and gutter	N									11/27/2023 16:40	eyeball estimate and flow duration	dispatch called at 4:00PM, arrived on scene and saw spill coming out of manhole, hydro jet to manhole, blockage opened up and saw water level going down at 4:40PM	Damage by Others Not Related to Collection System Construction/Maintenance		Manhole		Vitrified Clay		50	N/A	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		used vactor to vacuum up spill while fire hydrant was on	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	used vactor to suck up asphalt	cleaned line and CCTV		11/27/2023 20:00	N/A		N/A	11/28/2023 14:42														N/A	N/A	N/A	N/A	N/A	N/A	N/A	used hydrovac to suck up asphalt, hydro jet to clean line, CCTV to check after	N/A	
2	2SSO10154	Active	Mill Valley City CS	Mill Valley City	891364	1.4	Certified	Andrew Poster	Director of Public Works	28-NOV-23	28-NOV-23	28-NOV-23	Category 1 Spill	352 West Blithedale Avenue	11/27/2023 18:58	11/27/2023 19:35	11/27/2023 18:57		23-7303		352 West Blithedale Avenue - manhole	37.91766	-122.55298	Manhole		Manhole H21A	216	Spill from manhole into the street and into the creek nearby.	N				From manhole to creek, named: Arroyo Corte Madera del Presidio	45	25	Surface Water		Spill from manhole to street, then into creek. 	Y	37.91766	-122.55298							11/27/2023 19:42	Duration and Flow Rate Estimation Method	Based on call times of other emergency responders as well as DPW crew members.	Root Intrusion	Roots and gravel.	Gravity Mainline		Polyvinyl Chloride (PVC)		15	Sewage released onto the street and into the creek. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned Portion of Spill to Sanitary Sewer System		Vactor truck.	Other (specify below)	Contained and cleaned to best of ability. Posted 3 signs at location.	Contained and cleaned to best of ability. Posted 3 signs at location.	N/A	11/27/2023 19:52	8 inch pipe @ manhole H21A, 8-inch main made of plastic was clogged with roots and gravel. 	N			Arroyo Corte Madera del Presidio	Other (specify below)	Creek.	Arroyo Corte Madera del Presidio - a creek.	N/A	Other (specify below)	3 signs posted at location. 	City of Mill Valley	1	N	N												
5R	5SSO10835	Active	Mt Shasta CS	Mt Shasta City	891366	1.2	Certified	David Torres	PW Supervisor		13-DEC-23	13-DEC-23	Monthly Category 3 Spill	High and Mill	11/28/2023 21:46	11/28/2023 22:03	11/28/2023 19:46				MH 482 at the intersection of High St and Mill St	41.30993	-122.31231	Manhole			250	Slow spill of about 2 gpm coming out of MH cover that spread across road and ended at the corner of Mill and Water St. 	N						0	Paved Surface		Spill traveled from MH 482 across road to gutter pan and traveled north along Mill street approximately 330 and then west approximately 65 feet down Water street to dirt shoulder.		41.31086	-122.31243	41.31087	-122.31268					11/28/2023 22:39	No SCADA or flow data available, estimation was calculated by estimated visual flow from cover.	Operator logged time as events progressed.	Debris-General		Gravity Mainline		Vitrified Clay		78	Discharge of spill onto road and gravel shoulder. 	N	Contained All or Portion of Spill; Restored Flow		Used hydro jetting equipment to release debris blockage to restore flow. Washed down road and contained at gravel shoulder, swept up an recovered solids.	Inspected Sewer Using CCTV to Determine Cause		Section of main line was inspected by CCTV camera, root intrusions removed and section has been added to our yearly root cutting program.		11/29/2023 14:17	PW crew investigated line with camera and identified 3 root intrusion location. Roots were removed with chain cutter on hydro jetter and confirmed with camera equipment		Investigation and corrective actions completed on 11/29/2023	11/29/2023 14:17														none	Section of main line has been added to our yearly root cutting program.	Section of main line has been added to our yearly root cutting program.	Section of main line has been added to our yearly root cutting program.	Sewer mainline section MH 481 to MH 482 inspected and root cut.	none	Section of main line has been added to our yearly root cutting program.	Section of main line has been added to our yearly root cutting program.	Investigation and corrective actions completed on 11/29/2023	
9	9SSO10653	Active	City of Laguna Beach CS	Laguna Beach City	891368	1.4	Amended	Richard A Gonzales	Deputy Director of Public Works	29-NOV-23	30-NOV-23	30-NOV-23	Category 1 Spill	1580 Galen Dr.	11/29/2023 00:12	11/29/2023 00:12	11/29/2023 00:12	11/29/2023 08:20	23-7333	17-JAN-25	A broken valve on a force main.	33.5306	-117.77256	Force Main; Other (specify below)	Valve on forcemain	N/A	152705	Exiting manhole #G21-005 flowed down Galen Dr. to the storm drain located at the end of street. Flowing out to the Ocean via the Bluebird Outfall.	Y	Storm drain to the outlet on Bluebird Canyon Dr.	73895	0	Outfall at Bluebird Canyon Beach	78810	73895	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)	 With construction ongoing at the outfall located at Bluebird Canyon beach, a dam was built, thus capturing a portion of the spill before it hit the beach.	The spill location is Gaylan Dr and Bluebird Canyon Dr.	Y	33.530336	-117.772328							11/29/2023 07:20	Considering the 2  orifice in the pipe, the water was exiting at 19 psi. for the duration of the spill. the recovery consisted of the pumping of the water behind the dam at Bluebird Canyon Beach @ 200 gallons a minute for 5 hours and the 7 timed the vacuumed trucks were dumped, holding 1900 gallons.	City staff was at the location when the spill occurred and when the repair was complete. 	Collection System Maintenance Failure (specify below)	Scheduled removal of a 2  corroded ball valve was the cause of the spill. When the strap and valve were removed, the head pressure overwhelmed the workers. 	Force Main; Manhole		Concrete		50	The impact of the spill consisted of entering the beach waters and causing higher than normal bacteria samples. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Returned Portion of Spill to Sanitary Sewer System	 With construction ongoing at the outfall located at Bluebird Canyon beach, a dam was built, thus capturing a portion of the spill before it hit the beach.	City staff was at the location when the spill started till the repair was complete. The city attempted to alleviate the Impact by vacuuming as much of the spill as possible.	Repaired Facilities or Replaced Defect		No corrective action was taken as this was a scheduled removal of a 2  corroded ball valve was the cause of the spill. 	N/A	11/29/2023 08:30	Scheduled removal of a 2  corroded ball valve was the cause of the spill. When the strap and valve were removed, the head pressure overwhelmed expectations, causing the overflow.	N			Pacific Ocean	Ocean	Spill exiting outfall at Bluebird Canyon beach.	Ocean	N/A	Temporary Restricted Use	Postings were placed restricting swimming activities. 	OCHCA	1	N	Y	Bluebird outfall.	Samples are for bacteria levels.										
3	3SSO10340	Active	Gilroy CS	Gilroy City	891371	1.2	Certified	Matthew Jones	Deputy Director of Public Works		04-DEC-23	04-DEC-23	Monthly Category 3 Spill	6820 Glenview Dr	11/13/2023 15:50	11/13/2023 16:05	11/13/2023 15:30				spill was located at a single appearance point around manhole in a 7x15 area and in curb line 159' from point of spill	36.99612	-121.57165	Manhole	N/A	n/a	79	photos attached of affected area around manhole , curb line, catch basin and outfall. Photos of clean up effort and recovery 	Y	reached storm catch basin/ fully recovered	12				79	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		around man hole and along curb line to the storm water catch basin	Y	36.99585	-121.57159	36.99596	-121.5715					11/13/2023 17:30	data used to estimate discharge was measured gallons 	Data used for calculation were witness statements and measurements of affected area	Debris-Rags		Gravity Mainline; Siphon		Vitrified Clay		46	curb line and pavement of affected area was not accessible for a short period of time before clean up    	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Blocked catch basin with sandbags to minimize spill into catch basin. Vactor restored flow and cleared blockage by jetting plugged main from downstream manhole. jetted, sanitized and vacuumed/ recovered all of spill from catch basin and street spill locations. 	Other (specify below)	educate and inform public on the use of F.O.G and flushable wipes(rags).	Continue public outreach regarding F.O.G and rag usage with the public		11/13/2023 17:30	During spill response on 11/13/23 crew investigated and observed rags in manhole after flow was restored.  Crew observations were that rags in the system were causing blockage.		N/A	11/13/2023 08:43														N/A	No modifications needed at this time, ongoing public outreach regarding F.O.G and wipes 	N/A	N/A	N/A	N/A	N/A	no modification's needed for spill response 	N/A	
4	4SSO10390	Active	Hawaiian Gardens City CS	Hawaiian Gardens City	891372	1.4	Certified	Robert Swartz	Sr. CE	29-NOV-23	06-DEC-23	06-DEC-23	Category 1 Spill	2031-0276 (22422 Seine Avenue, Hawaiian Gardens)	11/23/2023 14:55	11/23/2023 16:00	11/23/2023 14:30		-		CSMD Map Sheet No. 2031 Manhole No. 276 MMS No. 8535059 Sewage was coming out of Manhole No. 276	33.82429	-118.07828	Manhole	Manhole No. 276		900	Sewage was flowing from Manhole No. 276 onto the street.  A portion of the sewage spill entered a storm drain located at 22422 Seine Avenue. 	Y	Sewage was flowing from Manhole No. 276 onto the street.  A portion of the sewage spill entered a storm drain located at 22422 Seine Avenue that connects to the city drain, BI 0021 - Line C - Artesia Norwalk, Coyote Creek, and eventually reaches the San Gabriel River. 	0	500	A portion of the sewage spill entered a storm drain located at 22422 Seine Avenue.  This storm drain feeds into Coyote Creek and ultimately into the San Gabriel River.	500	400	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water		Sewage was flowing from Manhole No. 276 onto the street.  A portion of the sewage spill entered a storm drain located at 22422 Seine Avenue that connects to the city drain, BI 0021 - Line C - Artesia Norwalk, Coyote Creek, and eventually reaches the San Gabriel River. 	Y	33.82423	-118.07844							11/23/2023 19:00	CWEA SSCSC Manhole Gauge	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops. 	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		64	N/A	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Upon arrival, the manhole was overflowing. We set up containment using a combo truck at the storm drain. A rodder equipment was used to break down the mainline grease blockage. Cleaned the area, washed the street, and vacuumed up the water. Notified all necessary agencies.  	Other (specify below)	Will inspect the sewer using CCTV to determine if further action is needed.	Will inspect the sewer using CCTV to determine if further action is needed.	N/A	11/23/2023 19:00	Will inspect the sewer using CCTV to determine if further action is needed.	N		01/23/2024 12:00	Artesia-Norwalk Drain, Coyote Creek, San Gabriel River, Pacific Ocean	Ocean; River; Stream/Creek		Storm Drain, Open Channel Creek, Open Channel River, Ocean	N/A	Other (specify below)	No impact.	Los Angeles County Flood Control District	0	N	N												
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	891375	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2		30-NOV-23	30-NOV-23	Monthly Category 3 Spill	3100 East 10th Street, Oakland Ca	11/28/2023 11:24	11/28/2023 11:46	11/28/2023 11:20				Sewer Lateral Clean Out (Private) overflowing on to paved parking lot and flowing down stream into unpaved soil next to railroad tracks.	37.77592	-122.22772	Lateral Clean Out (Private)			345	Sewer Lateral Clean Out (Private) overflowing on to paved parking lot and flowing down stream into unpaved soil next to railroad tracks.	N						40	Paved Surface; Unpaved Surface		Sewer Lateral Clean Out (Private) overflowing on to paved parking lot and flowing down stream into unpaved soil next to railroad tracks.										11/28/2023 12:45	Estimated Volumes: Gutter between sidewalk and parking lot; 20'L x 1'W x .04'D x 7.48 = 6 Gal Parking lot: 3'L x 3'W x .04'D x 7.48-Gal = 3 Gallons Stream in parking lot: 4'L x .5'W x .04'D x 7.48-Gal = 1 Gallon Parking stalls: 20'L x 10'W x .02'D x 7.48-Gal = 30 Gallons Unpaved surface triangle: 10'L x 15'W x .08'D x 7.48-Gal / 2 = 90 Gallons Average Depth of triangle: 1.5  + 1  + .5  = 3  / 3 = 1  (.08') Spill on right side of triangle: 60'L x 4'W x .12'D x 7.48-Gal = 215 Gallons Average Width: 1.5' + 10' + 5' + 3' + .5' = 20' / 5 = 4' Average Depth: 2  + 1  =3  / 2 = 1.5  (.12') Total Spill: 6 + 3 + 1 + 30 + 90 + 215 = 345 Gallons Recovered Spill: 6 + 3 + 1 + 30 = 40 Gallons Spill lost in unpaved surface: 345 - 40 = 305 Gallons  	Estimate of the start time was from eyewitness account, the spill overflow was discovered by Sewer Crew Leader Brandon Quintor. The end time was when the responding crew restored the flow.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		90	Sewer Lateral Clean Out (Private) overflowing on to paved parking lot and flowing down stream into unpaved soil next to railroad tracks.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Crews washed and vacuumed the spill on the paved surface in the parking lot.	Crews washed and vacuumed the spill on the paved surface in the parking lot. The responding crews weren't able to capture all the spill on the unpaved.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		CCTV inspection of the mainline found FOG to had been the cause of the overflow. Mainline has been placed on 6-Month High Frequency Maintenance Program with W.O # 1480483.		11/29/2023 11:30	CCTV inspection of the mainline found FOG to had been the cause of the overflow.		N/A	11/29/2023 11:30														N/A	Mainline has been placed on 6-Month High Frequency Maintenance Program with W.O # 1480483.	Mainline has been placed on 6-Month High Frequency Maintenance Program with W.O # 1480483.	N/A	CCTV inspection of the mainline found FOG to had been the cause of the overflow.	N/A	Mainline has been placed on 6-Month High Frequency Maintenance Program with W.O # 1480483.	Mainline has been placed on 6-Month High Frequency Maintenance Program with W.O # 1480483.	N/A	
3	3SSO10324	Active	Santa Cruz County CS	Santa Cruz County Public Works	891376	1.1	Certified	Ramon Sandoval	Assistant Superintendent 		04-DEC-23	04-DEC-23	Monthly Category 3 Spill	Rio Del Mar X Meadowlark	11/01/2023 08:35	11/01/2023 08:50	11/01/2023 07:50				Spill originated in Aptos California on Rio Del Mar Blvd cross street Meadowlark, from basin (AK) manhole 266. Out of two pick hole openings from sewer cover.	36.97108	-121.89333	Manhole			492	From manhole AK266 down Rio Del Mar Blvd 339' on paved asphalt into a gutter where spill ended up into a dirt ditch.	N						293	Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		From manhole AK266 down Rio Del Mar Blvd 339' on paved asphalt into a gutter where spill ended up into a dirt ditch.	Y	36.97087	-121.89477							11/01/2023 09:03	Spill volume estimation was based on time spill started and ended. Field crew observation showed sewage coming out of 2 pick hole openings 1  in diameter and 1  height of water. (Spill flow rate and volume determination based on flowout pick hole or opening was used to calculate volume). For spill recovery (Area / Volume method was used).	Dispatch was notified at 0835am from (Soquel Creek Water District) that a call was received from an R/P who did not leave any information other that they were driving on Rio Del Mar Blvd at 0800am on 11/1/2023 and noticed sewage bubbling out of a manhole. It is unknown what time the overflow started but based on the amount that spilled and the distance that it traveled I elected to say that it started just shortly before 0800am when it was first noticed. Start time I elected to go with is 0750am on 11/1/2023. Crews arrived at the location and cleared the blockage at 0903am on 11/1/2023  	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Other (specify below)	asbestos cement pipe.	60	The impact of the spill was mainly on the paved asphalt where vehicles were driving over the wetted area.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Crews were able to contain sewage spilled before entering storm pipe that would eventually reach Hidden Beach. affected paved surface area on Rio Del Mar Blvd was washed down and vacuumed up. Affected gutter and pipe was washed down and vacuumed up. Affected dirt ditch area was vacuumed up and recovered final destination spill.	Other (specify below)	This section of pipe is currently on a yearly root treatment. Crews will be adding Root X as an additional root treatment.	A Smart Cover was installed downstream to monito flow levels.		11/01/2023 12:15	Crews CCTV the main and found it mostly clean with small amount of roots entering through the pipe joints.		None	11/01/2023 16:00														None	High pressure jetting was used to remove all the roots in this section of pipe.	This section of pipe is currently on a every 365-day flush schedule.	None	This section of pipe was CCTV after it was jetted, no defects were identified at the time.	None	None	None	None	
5S	5SSO10890	Active	City Of Antioch CS	Antioch City	891377	1.1	Certified	Jeff Cook 	Wastewater Superintendent 		29-NOV-23	29-NOV-23	Monthly Category 3 Spill	3616 Blythe Drive Antioch Ca. 94509	10/31/2023 11:31	10/31/2023 11:41	10/31/2023 11:20				See attachments 	37.98045	-121.82068	Manhole			189	See attachments.	Y	a plugged Catch basin was the final destination of the spill. photos attached.	74				189	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		A Sewer main line was plugged and spilled from a manhole going down the street, curb and gutter into a catch basin that was plugged with leaves and debris.	Y	37.98045	-121.82068							10/31/2023 11:50	area volume calculations from lead worker Tyrone Wilson. A sketch is attached .	measuring out the spill and using our calculation spread sheet to complete.	Fats, Oil and Grease (FOG); Pipe Structural Problem/Failure - Controls		Gravity Mainline		Vitrified Clay		30	Minimal impact from spill due to everything was captured and cleaned up. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		upon arrival crews burmed off catch basin, opened up the stoppage and began cleaned up of affected area. crews vacuumed up all spill and cleaned and vacuumed the storm line exiting the catch basin. 	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		CCTV to find the failure and locate it for repair, then repaired the failure to ensure we would not have a repeat spill in this line. 		10/31/2023 16:04	we televised the main line and found a grease build up caused by a structural failure. we then scheduled it to be repaired the following day under an emergency USA ticket. 		investigation and repair completed.	11/01/2023 16:05														none taken due to the spill being a category 3. 	all action has been completed with the repair of the sewer line. 	N/A	Repaired completed on 11/2/23.	inspected on 11/1/23 and repaired on 11/2/23 on an emergency repair basis. 	N/A	See Attached	Crews arrived and opened up the stoppage of the main line, cleaned the spill and then we cctv'd the main line to identify the failure and repaired the issue within three days. 	investigation and repair completed.	
2	2SSO10104	Active	Ccsf - San Francisco Airport CS	CCSF - San Francisco Airport	891323	2.1	Certified	Jennifer Acton	Director of Maintenance		29-NOV-23	29-NOV-23	Monthly Category 3 Spill	Gates D2 & D3 Sewage Ejector Pump Station	10/29/2023 23:33	10/29/2023 23:35	10/29/2023 23:18				Spill originated from sewage ejector pump station wet well located between aircraft Gates D2 and D3.  	37.61725	-122.38196	Pump Station			402	Spill impacted the paved ground surface around the pump station wet well, impacted the paved ground surface of the airfield ramp Gates G1 and G2, and affected (4) downgradient storm drain catch basins located on the airfield ramp and aircraft taxilane. 	Y	The spill reached (4) downgradient storm drain catch basins, but did not flow out or downstream of the catch basins.  All wastewater that entered the catch basins collected at the bottom of each catch basin and below the outlet pipe.	98				402	Drainage Conveyance System; Paved Surface		Spill impacted the paved ground surface around the pump station wet well, impacted the paved ground surface of the airfield ramp Gates G1 and G2, and affected (4) downgradient storm drain catch basins located on the airfield ramp and aircraft taxilane. 	Y	37.61725	-122.38196	37.61717	-122.38227	37.615859	-122.382298	37.61632	-122.382298	10/30/2023 00:07	Spill volumes were calculated using area/volume calculation method.  Airport Spill Team responded to incident on 10/29/23 and collected field measurements of the impacted paved ground surface areas to perform volume calculations.  Field measurements of the amount of wastewater that entered the storm drain catch basins was performed on 11/3/23 due to limited access to the airfield taxilane on the day of spill.  Airfield Operations requires coordinated access to minimize the impact to Airfield Operations.	Field measurements of the affected paved ground surface and affected storm drain catch basins were collected  by responding Airport Spill Team member.	Pump Station Failure - Power		Pump Station - Power		Other (specify below)	Not Applicable, not a pipe.  Failure was due to a pump station power failure.	0	Spill impacted the paved ground surface around the pump station, the downgradient paved ground surface, and (4) downgradient storm drain catch basins.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Airport Central Plant personnel restored power to pump station, reset circuit breaker and restored flow.  Airport scrubbing contractor cleaned the impacted paved ground surface.  Airport Plumbers pumped out and cleaned each of the affected storm drain catch basins.  All wastewater was returned to the Airport's sanitary system for processing.	Repaired Facilities or Replaced Defect		Power restored to pump and flow restored.  Redundant pump was installed on 11/20/2024.		11/03/2023 01:30	Spill caused by power failure to sewage ejector pump station submersible pump.  Circuit breaker reset and flow restored.		NA	10/30/2023 00:07														NA	NA	NA	NA	NA	NA	NA	NA	NA	
2	2SSO10113	Active	Pittsburg City CS	Pittsburg City	891383	1.4	Amended	Pedro Ramos	Public works Supervisor 	30-NOV-23	07-DEC-23	07-DEC-23	Category 2 Spill	2201 Golf Club Rd	11/27/2023 12:06	11/27/2023 15:00	11/27/2023 12:06	11/27/2023 16:59	23-7300		The spill was flowing out the manhole buried under vegetation North of 2201 Golf club Rd and it flowed 645 ft through an open drainage conveyance system.      	38.01461	-121.91101	Manhole	Entered an open conveyance system and travel 645 ft.	The spill traveled 645 ft from the manhole to through and open vditch drainage conveyance system.	1701	The spill was flowing out of a manhole into and open drainage system approx. 645 feet. 	Y	The open drainage system is located 50ft East from the manhole where the spill entered the drainage system	1701	0			1701	Drainage Conveyance System		The spill was flowing out of manhole #4358 buried under some vegetation 300 feet north of 2201 Golf Club Rd. The spill flowed approximately 645 feet from the manhole through the drainage conveyance system.	Y	38.01461	-121.91101							11/27/2023 16:30	The volume was estimated using the Upstream Connections Method.	The Upstream Connections Method was used to calculate start and end time.	Debris-Rags; Fats, Oil and Grease (FOG); Root Intrusion		Force Main		Other (specify below)	AC Pipe	42	Contact unpaved surface and entered into open storm drain conveyance system approximately 645ft. 	N	Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Please see attachment with the description of spill response.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Schedule for cleaning was adjusted and added to our Chronic Service  list that will be Cleaned every 3 months.	This section of sewer main line will be Cleaned every 3 months.	11/28/2023 14:30	Collections crew  CCTV'd the sewer pipe and found heavy grease deposits as well as, root intrusion  and 2 sags in the line at the beginning and end of the main sewer line. joint separations were also found in the sag locations.   	N												N													
6A	6SSO11193	Active	High Desert State Prison CS	California Department of Corrections and Rehabilitation	891384	1.4	Certified	Kevin Loe	CPM II		30-NOV-23	30-NOV-23	Monthly Category 3 Spill	High Desert State Prison	10/16/2023 15:05	10/16/2023 15:40	10/16/2023 14:45				Sanitary Sewer manhole services main kitchen illustrated water exiting the lid, and entering the adjacent storm drain.  	40.407381	-120.508578	Manhole			925	Entered storm drain and was captured at outlet.	Y	Storm water drain, traveling underground in piping to exit location where it was captured.	925				925	Drainage Conveyance System; Paved Surface; Unpaved Surface		Storm water exit location 	Y	40.405165	-120.509459							10/16/2023 18:00	Based on volume recovered in the sewage vacuum recovery vessel.  	Based on observations. 	Fats, Oil and Grease (FOG)		Lower Lateral		Polyvinyl Chloride (PVC)		28	No impact	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned All Spill to Sanitary Sewer System		Multiple staff in team responded, including preventative measures and use of equipment to contain all of spill at exit location.  Pumped, captured and returned all spill to sanitary sewer.  	Enforcement action against Fats, Oil, and Grease (FOG) source		Observe grease trap pumping activities to ensure comprehensive effort and assemblies are configured correctly.  		10/16/2023 20:00	Grease trap in the close proximity to the obstruction had assemblies displaced allowing for solids to pass in to system.  		none	10/16/2023 09:11														none	none	Directive to have supervisory staff ensure grease trap assemblies are not displaced during pumping.  	none	N/A	none	none	Continued training and development of response team. 	none	
5S	5SSO10901-C	Active	City of Sacramento Combined CS	Sacramento City	891385	1.2	Certified	Kevin Guerra	Superintendent		30-NOV-23	30-NOV-23	Monthly Category 3 Spill	1001 15th Street 	10/29/2023 12:18	10/29/2023 13:04	10/29/2023 12:16				The spill had one appearance point, it was the pick hole on a upstream manhole lid.	38.57817	-121.48645	Manhole			530	The spill left the manhole lid in the street and traveled to the gutter pan to the East. It then traveled South to a Combined Drain inlet located near Jazz Aly.	N						530	Street/Curb and Gutter (2 3)		The spill traveled South of the appearance point in the gutter pan to a Combined Drain inlet Located in front of 1015 15Th Street.	Y	38.57807	-121.48644							10/29/2023 13:11	We used our pick hole estimation card and compared it to the pictures we took of the active spill when we arrived onsite.  We chose the 10 GPM picture and multiplied 10 by the minutes the spill was active.	We got our start time from our witness statements, and our end time was recorded by our responder. The pictures taken upon arrival gave us the the data we needed to get our estimated gallons per minute. 	Root Intrusion		Gravity Mainline		Vitrified Clay		116	The spill had little impact as the plugged main was close to the combined drain that it went into. It only traveled 50' in the gutter pan to the drain inlet. We were able to wash the spill into that same drain, it all was connected to the same sewer system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		We took pictures and unplugged the main shortly after arrival. We then cleaned the spill and area by washing it back into the Combined System.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		We cleaned and inspected the sewer main. After finding roots we had the main cleaned and roots removed.		10/29/2023 14:30	We had the main cleaned and inspected immediately after the spill. We used our CCTV equipment and found the cause to be roots, and will prevent future spills using our maintenance programs.		n/a	11/20/2023 13:36														n/a	Review of the maintenance schedule and adding the main to our root program will eliminate the issue.	We have adjusted the cleaning schedule and added it to an annual rodding work order.	n/a	We inspected the main with CCTV equipment.	n/a	n/a	n/a	n/a	
3	3SSO10332	Active	City of Morgan Hill CS	City of Morgan Hill	891386	1.2	Certified	Chris Ghione	Public Services Director		30-NOV-23	30-NOV-23	Monthly Category 3 Spill	16965 Monterey Road	10/28/2023 20:53	10/28/2023 21:37	10/27/2023 10:00				Blockage in siphon caused backup to occur at a customer's clean out. Web site would not let me save the report with any values other than a number between 0 - 90 in the lat/long fields below. -121.65092 37.12396	0	0	Lateral Clean Out (Private)			602	Wastewater came out of private clean out and followed the curb and gutter to a storm drain where all the wastewater collected.	Y	curb and gutter, storm drain system.	602				602	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Wastewater came out of private clean out and followed the curb and gutter to a storm drain where all the wastewater collected	Y	-121.65092	37.12396	-121.65079	37.12401	-121.65082	37.12397	0	0	10/28/2023 22:44	upstream connections method, Area/volume of wetted area.	factoring in business hours. Including one hour of prep time and one hour of cleanup after closing.	Fats, Oil and Grease (FOG)		Siphon		Vitrified Clay		45	spill in the parking lot area	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Returned All Spill to Sanitary Sewer System		placed sandbags and dirt to create a berm around the storm drain. cleared blockage and restored flow. Vacuumed/washed down the area.	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Other (specify below)	placed a smartcover to monitor water level	Placed a smartcover to monitor water level at the siphon. Having restaurant grease traps inspected. Will adjust the cleaning frequency of the siphon.  		10/29/2023 00:30	Cause of spill was due to grease from restaurants, they were reported, and their grease traps and cleaning records are going to be inspected.		n/a	10/29/2023 11:56														Reported to South Count Regional Waste Authority.	Increase cleaning frequency.	will clean every 6 months instead of annually.	n/a	n/a	n/a	smartcover already in place.	n/a	n/a	
4	4SSO10388	Active	Glendale City CS	Glendale City	891389	1.3	Certified	Dan Hardgrove	Assistant Director of Public Works	30-NOV-23	14-DEC-23	14-DEC-23	Category 1 Spill	440 W. Myrtle St.	11/29/2023 09:59	11/29/2023 10:21	11/29/2023 07:10	11/29/2023 10:59	23-7339		See photos and description attached.	34.15056	-118.26318	Inside Building or Structure; Lateral Clean Out (Private)			2065	Sewer spill from clean out of 440 Myrtle St. flowed to the parkway and street curb down to receiving catch basin.  See attached photos.	Y	City's storm drain system. See attached photo of receiving catch basin.	0	1990	Outfall at Electronic's Pl in the City of Los Angeles.  See Map attached.	1990	75	Building or Structure; Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water		Spill traveled in storm drain system to a discharge point to the Los Angeles River located at Electronics Place in the CIty of Los Angeles. See excerpt from storm drain system map which shows discharge point in the attached documents.	Y	34.14458	-118.27725							11/29/2023 10:36	See attached explanation of volume estimating methods.	Spill start time estimated to be 20 minutes before time first observed by the individual first reporting. Spill end time was the time the stoppage was relieved by responding crews.	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		97	Spill resulted in fouling of the sidewalk and the curb and gutter downstream of the cleanout that overflowed and a substantial discharge to a drainage conveyance system leading to the Los Angeles River.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Responding crews recovered sewage flow in the gutter line for 7 minutes before the stoppage was relieved. After the stoppage was relieved, staff washed-down all affected surfaces in the public right of way and sanitized the same, recovering all wash-up water.	Inspected Sewer Using CCTV to Determine Cause		Possible increased frequency of preventive maintenance based on circumstances-pending review.	Preventive maintenance schedule for the line experiencing the blockage to be reviewed at a trouble spot review meeting before 12/31/23.	11/29/2023 13:29	Accumulation of roots and grease approximately 20 ft. downstream of the connection point for the lateral for 440 Myrtle.	N			Los Angeles River	River		Concrete lined channel at the Glendale Narrows.	No observation performed. River is not accessible at this location.	Other (specify below)	There is no public access to the Los Angeles River tat this location.	Army Corps of Engineers. Access to channel is normally restricted.	0	N	N												
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	891391	1.2	Certified	Kent Vian	Asst. Deputy Director		03-JAN-24	03-JAN-24	Monthly Category 3 Spill	NOT# 40201037195 12646 TORREY BLUFF DR.	11/30/2023 08:09	11/30/2023 08:45	11/30/2023 08:08				THE SPILL ORIGINATED FROM A MANHOLE WEST OF 12646 TORREY BLUFF DR. IN THE STREET.	32.95423	-117.22833	Manhole	N/A	N/A	810	THE SPILL'S EXTENT WAS IN THE STORM DRAIN AT 3445 DEL MAR HEIGHTS RD.	N	THE DRAINAGE CONVEYANCE SYSTEM WAS AN ENCLOSED SEPARATE STORM DRAIN SYSTEM.	770				770	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)	N/A	THE SPILL'S EXTENT WAS IN THE STORM DRAIN AT 3445 DEL MAR HEIGHTS RD.	Y	32.95424	-117.23139							11/30/2023 09:02	VISUAL CALCULATED METHOD.	ASSUMPTIONS OF THE START TIME WERE MADE WHEN DISPATCH RECEIVED THE CALL, AND THE END TIME WAS DETERMINED WHEN THE CREW VISUALLY CONFIRMED IT HAD STOPPED.	Fats, Oil and Grease (FOG)	N/A	Gravity Mainline	N/A	Polyvinyl Chloride (PVC)	N/A	35	IMPACTS OF THE SPILL WERE AN ASPHALT RD., CURB AND GUTTER AND STORM DRAIN SYSTEM.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	UPON ARRIVAL, CREWS IMMEDIATELY RELIEVED THE STOPPAGE WHILE A SECOND CREW INVESTIGATED THE FINAL SPILL DESTINATION WHERE THEY CONTAINED THE STORM DRAIN.  CLEAN EFFORTS WERE THEN CONDUCTED AT THE STREET, CURB GUTTER AND STORM DRAIN.	Inspected Sewer Using CCTV to Determine Cause	N/A	THE SPILL CORRECTIVE ACTION WILL BE DETERMINED AT A LATER DATE.		11/30/2023 17:00	THE CAUSE OF THE SPILL WAS DETERMINED TO BE GREASE.		N/A	11/30/2023 15:00														N/A	N/A	N/A	N/A	THE CCTV CREW INSPECTED AND CONFIRMED GREASE TO BE THE CAUSE OF THE SPILL.	N/A	N/A	N/A	N/A	
6B	6SSO14497	Active	Ridgecrest WWTF CS	Ridgecrest City	891397	1.1	Certified	Shawn Connolly	Chief Plant Operator		01-DEC-23	01-DEC-23	Monthly Category 3 Spill	115 Ridgecrest Blvd, Ridgecrest, CA 93555	11/30/2023 15:31	11/30/2023 15:48	11/30/2023 15:10				Location: 35.6224251, -177.6710422 Everlevel Corp. is a contractor working for the City of Ridgecrest replacing sewer lines and paving roads. They have an external sewer bypass line ran at location mentioned above and punctured a small hole in their line with a backhoe resulting in approximately a 200 gallon leak before the bypass pump could be shut down and the line repaired fully.	35.6224251	-177.6710422	Other (specify below)	Temporary external bypass line used during construction to replace mainline sewer line in the City of Ridgecrest.		200	Spill was localized to a trench that was already excavated around the line that was eventually punctured.	N						200	Unpaved Surface		Spill was localized to a trench that was already excavated around the line that was ended up punctured.	Y	35.6224251	-177.6710422							11/30/2023 15:15	Spill volume was calculated based on the volume of the trench that had contained the overflow. roughly 8ft x 5ft x .6ft x 7.48gal/ft3= 179.52gal 	Spill start time was given by the construction company that caused the puncture of their own external bypass and estimated that the fix was approximately 5 minutes.	Other (specify below)	Backhoe operator puncturing external sewer bypass	Other (specify below)	external sewer bypass	Other (specify below)	thick wall rubberized external sewer piping	1	Spill was localized to trench where construction crew was digging out a sidewalk.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Returned All Spill to Sanitary Sewer System		Chief Plant Operator was first on scene and overflow and leaks had already been fixed. Contacted on-call personnel to bring out vacuum truck and disinfection equipment. Collected entire spill from trench containment including contaminated soil and then disinfected using a chlorinated bleach mixture.	Other (specify below)	Everlevel Corp. has been re-informed of SSO process and standards and will continue to comply with our board orders.	All contractors are currently aware of our SSO policies and Board Orders and will be re-informed		11/30/2023 17:30	At 115 Ridgecrest blvd a sidewalk was being replaced at the same location as a temporary external bypass and a backhoe operator working for the same Contractor made a small puncture on the bypass. Pump was immediately shut off, pipe was repaired and trench already located around leaking bypass contained the leak. Contaminated water and soil were removed and affected area was disinfected using a chlorinated bleach mixture.		Chief Plant Operator is maintaining a close level of inspection at all ongoing construction sites where mainline sewer or attached is involved	12/01/2023 08:46														No illicit discharge or regulatory enforcement action taken, Just reinforcement of SSO policies and Board orders which Contractor was already in compliance with.	Once mainline sewer work is finished the external bypass will be removed and will be unable to cause any further issues.	N/A	N/A	temporary sewer bypass was repaired and inspected by Chief Plant Operator	N/A	N/A	N/A	Chief Plant Operator is maintaining a close level of inspection at all ongoing construction sites where mainline sewer or attached is involved	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	891398	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	01-DEC-23	01-DEC-23	01-DEC-23	Category 1 Spill	1020 51st. Avenue, Oakland Ca	11/30/2023 08:26	11/30/2023 08:45	11/29/2023 09:00	11/30/2023 08:30	23-7364		Gravity Mainline Clean Out overflowing in the street, the sewage was flowing on the street gutter areas down-stream to the separate storm drain. The basement from the property was flooded.	37.76651	-122.21035	Other Sewer System Structure	Gravity Mainline Clean Out, and basement from the property was flooded.		3159	Gravity Mainline Clean Out overflowing in the street, the sewage was flowing on the street gutter areas down-stream to the separate storm drain. The basement from the property was flooded.	Y	The separate storm inlet flows to 54th Avenue, Peralta, Courtland, and Seminary creeks.	0	1374	The separate storm inlet flows to 54th Avenue, Peralta, Courtland, and Seminary creeks.	1374	1785	Building or Structure; Drainage Conveyance System that discharges to surface water; Paved Surface		Gravity Mainline Clean Out overflowing in the street, the sewage was flowing on the street gutter areas down-stream to the separate storm drain. The basement from the property was flooded.	Y	37.76651	-122.21035							11/30/2023 09:36	1476 minutes x 1 GPM = 1476 Gallons from m/s c/out. Basement '15 L x 15' W x 1' D x 7.48 Gal = 1683 Gallons. Recover from gutter: 340' L x 1' W x .04' D x 7.48 Gal = 102 Gallons. Total Recover spill: 1683 + 102 = 1785 Gallons. Lost in storm drain: 1476 - 102 = 1374 gallons.	Start time was based on resident eyewitness account.  End time was based on responding crew restoring the flow.	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		90	Gravity Mainline Clean Out overflowing in the street, the sewage was flowing on the street gutter areas down-stream to the separate storm drain. The basement from the property was flooded.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Staff cleaned affected areas in the street and gutter. Claim packet was provided to resident.	Staff cleaned affected areas in the street and gutter. Claim packet was provided to resident. 	Added Sewer to Preventive Maintenance Program	Line was placed on six-month high frequency program.	Line was placed on six-month high frequency program.	Line was placed on six-month high frequency program.	11/30/2023 15:30	CCTV inspection found FOG and debris wipes to be the cause of the spill.	N	N/A	12/01/2023 13:00	54th avenue,Peralta, Courtland, Seminary Creek	Lake; Other (specify below)	Tidal bay waters.	Tidal Bay Waters	None.	Other (specify below)	None.	East Bay Regional Parks.	0	Y	N											N/A	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	891400	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		03-APR-24	03-APR-24	Monthly Category 3 Spill	16844 West Monte Hermosa Drive	11/30/2023 11:21	11/30/2023 12:26	11/30/2023 11:21				TG 630-G2 MH: 488-12-114 	34.071035	-118.554157	Manhole		None.	677	See Attachment	Y	None.	677				677	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	Spill entered City of Los Angeles Catch Basin: 48812461111092. The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	Y	34.071013	-118.553402							11/30/2023 13:30	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation	SPILL FLOWRATE AND VOLUME DETERMINATION BASED ON FLOWOUT PICKHOLE OR OPENING DIAMETER OF PICKHOLE OR OPENING0.75INCHES HEIGHT OF WATER OUT OF PICKHOLE/OPENING1INCHES FLOWRATE PER PICKOLE/OPENING (GPM)2GPM # OF PICKHOLES/OPENINGS1 TOTAL FLOWRATE (GPM)2GPM DURATION OF SPILL (MINUTES)129MINUTES TOTAL FLOW (GALLONS)262GALLONS  SPILL FLOWRATE AND VOLUME DETERMINATION BASED ON FLOWOUT PICKHOLE OR OPENING DIAMETER OF PICKHOLE OR OPENING0.75INCHES HEIGHT OF WATER OUT OF PICKHOLE/OPENING2.5INCHES FLOWRATE PER PICKOLE/OPENING (GPM)3GPM # OF PICKHOLES/OPENINGS1 TOTAL FLOWRATE (GPM)3GPM DURATION OF SPILL (MINUTES)129MINUTES TOTAL FLOW (GALLONS)415GALLONS	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Manhole		Polyvinyl Chloride (PVC)		37	See Attachment	N	Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		See Attachment	Inspected Sewer Using CCTV to Determine Cause		See Attachment		11/30/2023 13:30	See Attachment		See Attachment	11/30/2023 13:30														None	None at this time. The sewer location where the backup occurred will be televised to determine the exact cause and to determine the necessary actions to prevent future incidents at this location.	None at this time. see Attachment	None at this time	The sewer location where the backup occurred will be televised to determine the exact cause and to determine the necessary actions to prevent future incidents at this location.	None at this time	See Attachment	See Attachment	See Attachment	
5S	5SSO11303	Active	Jamestown SD CS	Jamestown SD	891408	1.2	Certified	Nick Rivera	Operations Supervisor / CPO		27-DEC-23	27-DEC-23	Monthly Category 3 Spill	10432 10th ST	11/28/2023 14:35	11/28/2023 14:50	11/27/2023 12:00				The spill was centralized to one location. It surfaced at a JSD cleanout in as ally next to 10432 10th st.  Attached you will find photos of affected area.	37.95003	-120.41941	Gravity Mainline; Manhole	Cleanout lid 		640	The spill was isolated to a 10ftx15ft or 150sq ft area. Attached you will fid photos of the affected area	N						0	Unpaved Surface		The spill was isolated to a 10ftx15ft or 150sq ft area. Attached you will find photos of the affected area	Y	37.95005	-120.41942							11/28/2023 15:15	Spill volume was calculated by using our standard family flow rate of 160gpd x 2 because 2 homes are above the affected area. 	The neighboring property owner noticed a wet spot on 11-27 and on the 28th there was standing pool of water. Given This information were are assuming the spill started the morning of the 27th and concluded at 3:15pm on the 28th.	Debris-wipes/Non-disposables; Root Intrusion		Gravity Mainline		Vitrified Clay		73	The spill was centralized to a a 10ftx15ft or 150sq ft area. The affected area was covered in leaves. Staff raked up all debris and leaves and disinfected the area. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow		On 11/28/2023 JSD staff received call at 2:35pm from homeowner at 10432 10th st about a possible sewer blockage. Staff responded immediately and found standing water above a cleanout. Staff determined there was a blockage in JSD mainline. Staff cleared blockage with Jetting truck at 3:15pm. The blockage was determined to be cause from roots and wipes. Staff performed a dye test ensure blockage was clear. Staff disinfected the affected area by spraying bleach. Staff monitored the site and cleared all debris from location. Staff performed a CCTV inspection and found the line in good shape.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		JSD will add this segment to our hotspot list and add to our root treatment list as well		12/08/2023 12:00	After review of the segment the spill was caused by root intrusion and a build up of wipes. Staff performed CCTV inspection and found the line to be in good shape. Staff will add this segment into our root treating list and monitor it to prevent future SSO's		Staff will continue to monitor the area and add the segment to our root treating list. 	12/11/2023 09:46														NA	This segment will be included in a bi annual maintenance schedule including cleaning and root treatment. 	This segment will be included in a bi annual maintenance schedule including cleaning and root treatment. 	NA	NA	NA		NA	Staff will continue to monitor the area and add the segment to our root treating list. 	
5F	5SSO10737	Active	Kern Sanitation Authority CS	Kern County Public Works Department	891412	1.2	Certified	jesus uribe	Wastewater Specialist		04-DEC-23	04-DEC-23	Monthly Category 3 Spill	Pico St 9362	12/01/2023 16:00	12/01/2023 16:45	12/01/2023 15:00				sewage spill point was on manhole #9362 	35.39044	-118.95001	Manhole			200	spill came out of manhole and ran down street/ sidewalk curb. 	N						100	Paved Surface; Street/Curb and Gutter (2 3)		overflow came out of manhole cover and ran down curbside.	Y	35.3904	-118.95369							12/01/2023 17:30	measured/ followed the spill and got a 600ft run X 1ft X .04 X 7.48ft3=180gal.	employee found spill occurring, section of sewer is at end manhole so not alot of flow traveling through section.  	Root Intrusion		Gravity Mainline; Manhole		Vitrified Clay		50	no homes were affected, spill stayed in the curbside 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned Portion of Spill to Sanitary Sewer System		blockage was relieved by hydro jetting, spill was vacuumed. barriers were used to stop sewer run off from advancing, and area was disinfected.  	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		smartcover sensor will be installed to detect future blockages 		12/01/2023 18:30	pipe has heavy root intrusion that can only be mended by replacing pipe segment. 		installing a smartcover on 12/4/23	12/04/2023 09:36														NA	pipe segment will be recommended to be replaced. 	segment will be in a adjusted preventive maintenance schedule.	NA	inspected on 12/4/23	NA	NA	NA	installing a smartcover on 12/4/23	
5S	5SSO10938	Active	Easterly CS	Vacaville City DPW	891414	1.3	Certified	Justen Cole	Director Of Utilities		27-DEC-23	27-DEC-23	Monthly Category 3 Spill	290 Alamo dr	11/03/2023 09:35	11/03/2023 09:47	11/03/2023 09:30				Pictures with hard copy	38.35442	-122.00919	Lateral Clean Out (Public)		None	76	Uploaded pictures include appearance point, area of spill on sidewalk and unpaved area. Curb and gutter measurements including length of spill. The pictures of the wash down and, dam, and vactor clean-up are included.	N						76	Street/Curb and Gutter (2 3); Unpaved Surface		Per the pictures taken of the spill, the area of the appearance point was within a landscape area then the liquid flowed onto the sidewalk and gutter. The spill was stopped before reaching the downstream DI. Cannot accurately define the full spread of the spill due to trees obscuring the overview in Google maps.  	Y	38.35444	-122.00914	38.35495	-122.00954					11/03/2023 11:36	Took dimensions of areas and depths. Calculated Area/Volume, Saturated Soil, and Volume Contained in Roadway Gutter	Estimated time based on caller's description of spill, time of day, and visual observation of volume, and measurements taken of spill.	Root Intrusion		Lower Lateral		Vitrified Clay		60	No environmental impact. Contained in curb and gutter, sidewalk and section of unpaved area.	N	Cleaned Up (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Washed down spill areas and directed spill and wash down water to vactor truck. Placed dam upstream of DI to contain spill and prevent liquid from reaching DI.	Inspected Sewer Using CCTV to Determine Cause		Repair section of lower lateral.		11/03/2023 12:01	CCTV'd lower lateral, found roots and made work order to repair lower lateral.		No	11/06/2023 16:00														Not applicable.	Not applicable.	Not applicable.	Repair lower lateral.	Repair to be scheduled.	Not applicable.	Not applicable.	Repair section of lower lateral.	No	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	891423	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		17-APR-24	17-APR-24	Monthly Category 3 Spill	1514 Sunset Plaza Drive	12/04/2023 12:21	12/04/2023 12:50	12/04/2023 12:21				The initial crew arrived at 12:50 P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.098022	-118.380794	Manhole			185	Sanitary Sewer Overflow.	N						185	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	34.098022  -118.380794	Y	34.098022	-118.380794							12/04/2023 13:52	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.	Spill flowrate and volume determination based on flowout pickhole or opening Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening1inches Flowrate per pickole/opening (gpm)2gpm # of pickholes/openings1 Total flowrate (gpm)2gpm Duration of spill (minutes)91minutes Total flow (gallons)185gallons 	Root Intrusion		Gravity Mainline		Vitrified Clay		69	On Monday, December 4, 2023 at 12:21 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 1514 Sunset Plaza Drive (TG 592-J5). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 1:52 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 185 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		On Monday, December 4, 2023 at 12:21 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 1514 Sunset Plaza Drive (TG 592-J5). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 1:52 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 185 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	Inspected Sewer Using CCTV to Determine Cause		As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.		12/04/2023 13:52	On Monday, December 4, 2023 at 12:21 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 1514 Sunset Plaza Drive (TG 592-J5). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 1:52 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 185 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   		None At this time.	12/04/2023 13:52														None At This Time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	None At This Time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	None At This Time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	On Monday, December 4, 2023 at 12:21 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 1514 Sunset Plaza Drive (TG 592-J5). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 1:52 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 185 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	None At this time.	
3	3SSO10335	Active	Sewage Treatment Plant CS	Soledad City	891425	1.5	Certified	Gabriel Perez	Water Reclamation Facility Chief Plant Operator		18-DEC-23	18-DEC-23	Monthly Category 3 Spill	150 Kidder st	12/01/2023 16:30	12/01/2023 16:45	12/01/2023 15:30				Overflow happened at customer's lateral clean out	36.42615	-121.32646	Lateral Clean Out (Private)			100	As can be seen in the submitted images, impacted area was relegated to paved and cemented surfaces, covering a linear distance of about 90 feet altogether	N						50	Paved Surface		On attached images, it can be seen that that affected areas past customer's driveway was limited. Perhaps 90 linear feet from where back-up appeared	N									12/01/2023 21:00	Measured length x Width x depth	gallons spilled divide by toilet gallons per min	Debris from Lateral; Debris-Rags; Debris-wipes/Non-disposables		Lower Lateral		Vitrified Clay		59	Impact was minimal, only paved and cemented surfaces affected, no entry points to dirt or storm drains	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Property Owner Notified; Restored Flow		Contained spill with absorbent material. Vacuum street curb and gutter. Disinfect area after clean up.	Inspected Sewer Using CCTV to Determine Cause		Private lateral does not apply to city.		12/01/2023 21:00	Lateral back up with debris roots/ rags / rubber bands.		Will continue to monitor area.	12/01/2023 21:00														Call OES and Monterey county health dept.	Does not apply.	Does not apply.	Does not apply.	Lateral owner hired contractor to CCTV.	Does not apply.	Does not apply.	Arrive, asses the spill and proceed to clean up and disinfect area.	Will continue to monitor area.	
4	4SSO10431	Active	Santa Monica City CS	Santa Monica City	891426	1.3	Certified	Ralph Valencia	Water/Wastewater Administrator	05-DEC-23	08-DEC-23	08-DEC-23	Category 1 Spill	947 20th Street	12/04/2023 21:05	12/04/2023 21:40	12/04/2023 21:05	12/04/2023 22:30	23-7454	05-DEC-23	Flooding of a lower unit, laundry and garage.   Note: unit is under construction 	34.03471	-118.48645	Inside Building or Structure	Sewage exited from shower and clean out which entered a sump and pumped out to the street. 		500	Flooded lower units that included garage, laundry and apartment unit.	Y	Any flow entering storm drain into this area entered the Wilshire Diversion ( Low Flow Diversion) and diverts to the sanitary sewer. 	350	150	All discharge entered the Wilshire Low Flow diversion, which reroutes into the sanitary sewer. No impact to waterways 	0	350	Drainage Conveyance System		There was a backup of sewage in a lower unit shower. It flowed from the bathroom/laundry room and out the garage to the adjacent drainage conveyance system. From the drainage conveyance it entered the low flow diversion (Wilshire Diversion) from there it was diverted to the sanitary sewer.	Y	34.03483333	118.48633333							12/04/2023 22:00	The flow recovered was based on a visual estimation from the affected areas.	Estimated start time of discharge was on 12/4/2023 starting at 21:05 per resident and resolved by 22:00.	Other (specify below)	A private sewer contractor had inserted a temporary sewer pipe into the sewer main. It was inserted into the main that it caused an obstruction which resulted in a sewer backup.	Gravity Mainline		Vitrified Clay	1920 VCP pipe which has been lined.	100	Backup into shower which contaminated the floor and baseboards.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		The adjacent sewer main was jetted and flow was fully restored. Sewage spill was contained and removed. Subsequent cctv inspection identified temporary sewer lateral that was inserted into a sewer main. 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Jetted sewer to remove blockage.	The temporary sewer connection was pulled out of the sewer main it was blocking.	N/A	12/04/2023 23:00	Staff jetted sewer main and cleared blockage. They subsequently cctv'd the sewer main and identified a temporary sewer lateral that had been inserted into the sewer main. The temporary lateral had created an obstruction in the sewer main and a buildup and backup resulted. Staff identified the temporary sewer lateral from the cctv and it was located under a trench plate that had been placed.	N			None	Other (specify below)	The waste was diverted to the sanitary sewer.	N/A	N/A	Other (specify below)	Did not affect public access	N/A	0	N	N												
3	3SSO10335	Active	Sewage Treatment Plant CS	Soledad City	891428	1.4	Certified	Gabriel Perez	Water Reclamation Facility Chief Plant Operator		12-DEC-23	12-DEC-23	Monthly Category 3 Spill	Intersection of Main st and Regina st	11/22/2023 14:35	11/22/2023 15:05	11/22/2023 13:15				Sewer Main line was plugged with debris.	36.77826	-119.41793	Gravity Mainline			500	ok	N						400	Paved Surface		Spill flowed out of manhole onto street and curb.	Y	36.43291	-121.32443	36.43262	-121.32452					11/22/2023 14:40	We measured the length, depth and widths of the spill 	math volume 	Debris-Rags; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		40	traffic was impacted	N	Cleaned Up (specify below); Contained All or Portion of Spill		We used Vac Con truck to vacuum up spill. Kitty litter to contain spill and CL2 to disinfect the area.	Adjusted Schedule/Method of Preventive Maintenance		Will inspect line in a more frequent time line.		11/22/2023 18:30	Found home owner in this location is running a cooking company out the home. Causing extreme grease build up.		None.	11/23/2023 09:12														None.	None.	Weekly monitoring of sewer line.	None.	None.	None.	None.	Responded in a timely manner and was handled properly.	None.	
2	2SSO10109	Active	Concord City CS	Concord City	891429	1.2	Certified	Pernise Seumanutusa	Public Works Supervisor		05-DEC-23	05-DEC-23	Monthly Category 3 Spill	1080 Mohr Lane	12/03/2023 14:30	12/03/2023 14:50	12/03/2023 11:15				Single appearance point: Manhole in center of street.	37.94698	-122.04901	Gravity Mainline; Manhole			300	Storm Drain cleaning, Curb gutter cleaning	Y	Catch basin with trash capture device. 	50				300	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		spill traveled approximately 100 feet down a curb gutter										12/03/2023 16:15	Eye ball method and duration and flow	investigation with homeowners and time arrived and blockage stopped.	Debris-Rags; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		80	No impact	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		sand bags dropped to stop overflow from advancing. Wash down curb and gutter and vac sewage. Stormdain was jet cleaned and vacuumed. 	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause		Segment will be added to a higher frequency list from annual to 6 months.		12/03/2023 16:15	Cause of overflow were determined by catch baskets and then confirmed by CCTV. 		N/A	12/03/2023 16:15														N/A	N/A	Annual to semi-annual 	N/A	N/A	N/A	N/A	N/A	N/A	
4	4SSO10502	Active	LA City Bureau of Sanitation CS	Los Angeles City Bureau of Sanitation	891430	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		02-APR-24	02-APR-24	Category 1 Spill	21154 South La Salle Avenue	12/04/2023 20:12	12/04/2023 20:49	12/04/2023 20:12	12/04/2023 21:36	23-7451		On Monday, December 4, 2023 at 8:12 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 21154 South La Salle Avenue (TG 763-J5). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 9:08 PM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.	33.836531	-118.305204	Manhole		None.	40	Attached.	Y	It was estimated that approximately 40 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish partial containment, and was able to recover 16 gallons of sewage. The remaining 24 gallons of sewage entered an adjacent County of Los Angeles owned catch basin at 21154 South La Salle Avenue, which is tributary to the Dominguez Channel.	16	24	Attached.	24	16	Other (specify below)	It was estimated that approximately 40 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish partial containment, and was able to recover 16 gallons of sewage. The remaining 24 gallons of sewage entered an adjacent County of Los Angeles owned catch basin at 21154 South La Salle Avenue, which is tributary to the Dominguez Channel.	33.836531  118.305204	Y	118.305204	118.305204							12/04/2023 21:08	Spill flowrate and volume determination based on flowout pickhole or opening  Volume of a spill contained in a rectangular area 	Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening0.125inches Flowrate per pickole/opening (gpm)1gpm # of pickholes/openings1 Total flowrate (gpm)1gpm Duration of spill (minutes)56minutes Total flow (gallons)40gallons  Length10feet Width5feet Depth0.5inches0.0417feet  2.08ft316gallons 	Debris-General		Gravity Mainline		Vitrified Clay		74	It was estimated that approximately 40 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish partial containment, and was able to recover 16 gallons of sewage. The remaining 24 gallons of sewage entered an adjacent County of Los Angeles owned catch basin at 21154 South La Salle Avenue, which is tributary to the Dominguez Channel.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	It was estimated that approximately 40 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish partial containment, and was able to recover 16 gallons of sewage. The remaining 24 gallons of sewage entered an adjacent County of Los Angeles owned catch basin at 21154 South La Salle Avenue, which is tributary to the Dominguez Channel.	On Monday, December 4, 2023 at 8:12 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 21154 South La Salle Avenue (TG 763-J5). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 9:08 PM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.  It was estimated that approximately 40 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish partial containment, and was able to recover 16 gallons of sewage. The remaining 24 gallons of sewage entered an adjacent County of Los Angeles owned catch basin at 21154 South La Salle Avenue, which is tributary to the Dominguez Channel. 	Adjusted Schedule/Method of Preventive Maintenance	Pipeline Will Be Placed On Semi-Annual Maintenance.	Pipeline Will Be Placed On Semi-Annual Maintenance.	None At This time.	12/04/2023 21:08	On Monday, December 4, 2023 at 8:12 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 21154 South La Salle Avenue (TG 763-J5). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 9:08 PM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.	N		12/05/2023 21:08	Dominguez Channel	Other (specify below)	Dominguez Channel.	Dominguez Channel.	None At The Time.	Other (specify below)	Not At The Time Of the Event.	Beaches and Harbor	0	N	N	No.	None.										
8	8SSO10574	Active	Garden Grove City CS	Garden Grove Sanitary District	891431	1.1	Certified	William Murray	Public Works Director		16-JAN-24	16-JAN-24	Monthly Category 3 Spill	5752 Anthony Ave	12/04/2023 08:07	12/04/2023 08:15	12/04/2023 07:30				District manhole #7774 in the intersection of Anthony Ave and Alonzo Cook St. 	33.775131	-118.032374	Manhole			56	The overflow spread to the curb and gutter on the south side of Anthony Ave. It also spread to the curb and gutter on the east side of Alonzo Cook St. The overflow was contained with sandbags near catch basin inlets on Anthony and Alonzo Cook. The spill was confined to the intersection. 	Y	Catch basin inlet #2521 on Alonzo Cook St flows into inlet #2523 via a 21  RC pipe. Catch basin inlet #2523 flows into trapezoidal channel 187 via a 36  RC pipe. 	5				56	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		No sewage entered catch basin inlet #2521 on Alonzo Cook St. Approximately 5 gallons entered catch basin inlet #2523 at 5752 Anthony Ave. Crews were able to contain and vacuum up the spillage inside of the inlet before it reached the outflow pipe that leads to the downstream channel. Crews inspected the downstream pipe and channel to make sure all of the overflow was recovered from the storm drain system.	Y	33.77516	-118.03237	33.77518	-118.03236					12/04/2023 08:30	The overflow volume was calculated using an OCSD pick hole overflow calculation chart. A 1/2 inch pick hole overflowing one inch high equals .94 gallons/minute. This was multiplied by the 60 minutes of spillage to equal 56.4 gallons, rounded to 56 gallons. (.94 gal/min x 60 min = 56.4 gal, rounded to 56 gal).	Crews started asking residents if anyone noticed when the overflow had started. The  resident who called in to report the spill was also notified. The earliest people knew about the overflow was around 8:00 AM. Residents explained that many of their neighbors leave for work around 7:00 AM and they would have noticed an overflowing manhole. The overflow must have started prior to 8:00 AM. The District has determined the start time to be 7:30 AM.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		61	Sewage flowed onto the street and into the curb and gutters on Anthony Ave and Alonzo Cook St. Crews were able to break the blockage and return flow to normal. Crews used a nearby fire hydrant to wash down the street. Combination trucks were used to vacuum up all of the waste and wash water. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		District crews responded to a manhole overflow call at 5752 Anthony Ave. District manhole #7774 was overflowing into the curb and gutter. Crews placed sandbags in the curb and gutter near the downstream catch basin inlets to contain the overflow. No sewage entered catch basin inlet #2521 on Alonzo Cook St. Approximately 5 gallons entered catch basin inlet #2523 at 5752 Anthony Ave. Crews were able to contain and vacuum up the spillage inside of the inlet before it reached the outflow pipe that leads to the downstream channel. Crews inspected the downstream pipe and channel to make sure all of the overflow was recovered from the storm drain system. Crews set up a combination truck at District manhole #8669 and began to hydro jet the line to break the blockage. A grease blockage was cleared approximately 10 feet upstream of the manhole at 8:30 AM. Flow was returned to normal and the spill area was washed and vacuumed. Crews decanted all waste and wash water into the sewer system.	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below)	Crews cleaned the line again on 2023-12-05 to ensure it was as clean as possible.	This line is on the one month hot spot list. Even though it is cleaned every month, steps must be made to prevent any future overflows. The District has decided to install a Smart Cover device in the manhole that overflowed (#7774). This manhole seems to be the first appearance point of an overflow and it is next to a catch basin inlet that flows directly to an open channel. The Smart Cover device measures flow and allows real time monitoring of flow conditions. It also sends out alerts when the levels get too high or too low. Crews will be able to respond and take actions to prevent overflows.		12/05/2023 07:00	Crews cleared a grease blockage approximately 10 feet upstream of manhole #8669. Crews noticed heavy grease buildup. 		N/A.	12/05/2023 07:00														The spill information will be given to the Garden Grove Environmental Management Team for their review. 	The Smart Cover system will notify District staff of high levels in the manhole. This will allow staff to respond and take action before an overflow occurs.	The Smart Cover system offers continuous real time monitoring and sends out alerts when it detects high levels in the manhole.	None planned.	This line has been video inspected using CCTV equipment since it is on our one month hot spot list.	None planned.	Pending installation of a new Smart Cover in the manhole.	The Smart Cover database is checked daily. When added to the database, this location will also be checked daily.	N/A.	
4	4SSO11423	Active	Long Beach Water Dept. CS (SSO program)	Long Beach City, Water Dept	891432	1.4	Certified	Jennifer Rojas	Senior Director 		14-DEC-23	14-DEC-23	Monthly Category 3 Spill	6975 Long Beach Blvd	11/08/2023 19:20	11/08/2023 19:45	11/08/2023 19:00				The Spill originated at a private 4  clean-out near the building's exterior. 	33.88052	-118.20505	Lateral Clean Out (Private); Manhole		City Sewer Manhole F40-SMH-029	95	The Spill originated at a private 4  clean-out near the building's exterior and a sewer manhole F40-SMH-029. From there, it traveled downward into the alley, where it was promptly contained by the quick response of the cleanup crew. The containment measures implemented by the crew included the use of barriers and specialized vacuum equipment to prevent further spread and mitigate any potential harm.	N	N/A	0				95	Paved Surface		A sewer spill occurred, resulting in the release of wastewater into the alley. The spill extended along the alley for approximately 308 feet. To prevent further contamination, sandbags were strategically placed to contain the spill and prevent it from spreading to surrounding areas.	Y	33.88033	-118.20555							11/08/2023 19:56	The spill volume was calculated using the formula (Length X Width X Depth) + (Area X 7.48), where the dimensions were 308 feet (Length) X 0.5 feet (Width) X 0.083 (Depth) and the conversion factor of 7.48 to convert the result to gallons. = 95 Gallons	Upon discovering a sewer spill at 6975 Long Beach Blvd, the Property Manager contacted Long Beach Utilities, documenting the time of the incident.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		77	We experienced a localized sewer spill in the alley. Our crews promptly addressed the issue, effectively containing and recovering the affected area.	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		1. Spill Containment: At a private 4  clean-out and the city sewer manhole, sewage overflowed from the system, resulting in approximately 95 gallons of sewage traveling down the alley. Containment measures were implemented to prevent further spread, including deploying barriers to contain the spill within the affected area. 2. Cleanup Efforts: Ocean Blue Environmental began cleanup operations for the spill in the alley. The 95 gallons of sewage were cleaned up using a pressure washer and vacuum truck.	Inspected Sewer Using CCTV to Determine Cause		The pipe segment has undergone thorough hydro-jetting. We will continue with our preventive maintenance program and ensure that our staff follows proper cleaning practices.		11/08/2023 23:20	On 11/10/2023, a post CCTV inspection was conducted to investigate the cause of the main line stoppage. The inspection revealed that the stoppage was caused by the presence of grease in the pipe segment. In order to resolve the issue, a thorough hydro-jetting process was carried out on the pipe segment to remove the accumulated grease and ensure smooth flow of the wastewater.		No ongoing investigation at this time. 	11/10/2023 08:30														The Long Beach Health Department was notified and at the scene to supervise the cleanup of the contaminated area.	We have a 2-year Preventive Sewer Maintenance Program to ensure the long-term health and functionality of our sewer systems. This program involves regular inspections, proactive cleaning, and timely repairs to prevent blockages, backups, and other sewer-related issues.	We will proceed with our preventive maintenance program for this pipe segment and ensure that the cleaning is completed according to the schedule.	There is no planned rehabilitation or replacement of this segment.	CCTV inspections were conducted in order to identify the cause and precise location of the grease blockage. These inspections involved the use of specialized cameras to visually examine the affected area. Once the cause and location were determined, appropriate measures were taken to ensure a thorough cleaning of the blockage. The accumulated grease was meticulously removed from the system to restore its optimal functioning.	None planned.	No modifications have been made to the system or operating procedures. The pipe was inspected to determine the source of the grease, and this information will be used to target specific areas for FOG prevention in targeted advertising campaigns.	We will continue following our spill response procedures on containment and clean-up efforts.	No ongoing investigation at this time. 	
5R	5SSO10791	Active	Burney CS	Burney WD	891434	1.1	Certified	David Zevely	District Manager		05-DEC-23	05-DEC-23	Monthly Category 3 Spill	Roff Way Manhole Near Senior Apartments	11/24/2023 09:00	11/24/2023 09:13	11/24/2023 09:00				Manhole at the turn near the Senior Apartments on Roff Way	40.88815	-121.65917	Manhole			180	The spill went along a gutter and filled A Drainage inlet vault about 18 inches high that contained the spill. 	Y	The spill went along a gutter and filled a Drainage inlet vault about 18 inches high that contained the spill. The drainage system discharges to a retention basin.	180				180	Drainage Conveyance System		The spill went along a gutter and filled a Drainage inlet vault about 18 inches high that contained the spill. 	Y	40.88814	-121.65878							11/24/2023 10:18	Drainage inlet box is about 4 feet square and the spill filled about 1.5 ft.  4' x 4' x 1.5' = 24 cu.ft. x 7.48 gal/cu.ft. = 179.52 gallons	Discussion with staff that responded to spill.	Debris-General		Gravity Mainline		Vitrified Clay		51	None	N	Contained All or Portion of Spill; Other (specify below); Restored Flow	Emptied vac trailer at the wastewater plant	Responded to call, hydro-jet line to clear blockage, restored flow, vacuumed out drainage inlet box, cleaned gutter with spray wand and vacuum hose.	Other (specify below)	Continue to check weekly. Discuss problem with Engineer. 	Continue to check weekly. Discuss problem with Engineer. 		11/23/2023 11:00	None		None	11/24/2023 11:00														No	Continue to check weekly. 	Continue to check weekly. 	Discuss problem with District Engineer	No	need to add this line to the CIP when updating list	N/A	None	None	
3	3SSO10314	Active	Salinas City CS	Salinas City	891435	1.2	Certified	Gary Gabriel	Wastewater Manager	05-DEC-23	22-DEC-23	22-DEC-23	Category 1 Spill	18836 Eisenhower Street	12/02/2023 20:31	12/02/2023 20:52	12/02/2023 07:00	12/02/2023 22:50	23-7423		Manhole at 18836 Eisenhower Street overflowed and discharged to nearby catch basin and into Santa Rita Creek. 	36.72928	-121.64339	Manhole		An additional manhole on the back frontage dirt road was leaking also.	1736	Extent of spill originated from manhole at 18836 Eisenhower Street which discharged to nearby storm drain system that discharges to Santa Rita Creek. Manhole on frontage dirt road between houses also was leaking. Spill boundaries shown in attached map of Santa Rita Creek from Eisenhower Street to Santa Rita Street where staff dammed creek to contain discharge to channel. 	Y	Catch Basin on Eisenhower Street was impacted by discharge that goes directly to Santa Rita Creek.	0	397	Discharge point outfall from storm drain system and from manhole directly to creek on dirt frontage road.	1736	1339	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		Sanitary sewer overflow first appearance point from manhole at 18836 Eisenhower Street which flowed and entered storm drain inlet and discharged though outfall into Santa Rita Creek. Second appearance point discharged from manhole that was located behind 18836 Eisenhower Street on frontage dirt road along Santa Rita Creek that made its way down earthen bank to creek channel.	Y	36.72928	-121.64339	36.72908	-121.64303	36.72468	-121.65338			12/02/2023 21:36	Estimation used: Sewer Spill Estimation Guide Developed by Orange County Pick and Vent hole estimation chart. *See Attachment Spill Volume Estimation.	Interviewed witness who reported initial spill through City of Salinas Q-alert system to determine approximate spill start time and flow discharge estimations. City first responders took photos and documented discharge flow at site using pick and vent hole estimations to determine initial flow estimates. City staff determined spill end time based on time blockage was removed by City staff from mainline and when flow was restored. 	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline; Manhole		Vitrified Clay		50	SSO discharge impacted near by Santa Rita Creek (Little Bear Creek). Approximately 4338 feet of creek was impacted where discharge comingled with ponded creek water. Staff installed an earthen dam at Santa Rita St. to contain the discharge and impacted creek water. Water was later removed using staff to vacuum water from channel up to installed dam.  Removing approx. 26,800 gallons.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		*See Attachment: Summary of spill response activities.	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Installed SCADA manhole monitor at location of discharge manhole. To monitor high flow levels which will alarm staff once triggered. 	Installation of manhole monitor, CCTV performed to determine problem that contributed to overflow. Reviewed maintenance records. Has been on high priority cleaning list due to past SSO's at location. Staff training on post SSO failure analysis and debriefing. 	1. Installation of SCADA manhole monitor completed 12/5/23 2. CCTV follow-up to determine problems completed 12/5/23 3. Reviewed past maintenance records completed 12/15/23 4. SSO reporting party Interview on start time determinations and flow discharge. completed  12/4/23 5. Removed earthen dam on Santa Rita Creek used for containment. completed 12/6/23 	12/06/2023 10:00	Staff determined spill cause was due to blockage in City mainline resulting in discharge from manholes. CCTV determined FOG and disposable wipes caused blockage. 	N	N/A		Santa Rita Creek	Stream/Creek		Natural Creek/Streambed 	None observed	Other (specify below); Public Closure; Restricted Public Access	Per Monterey County Health staff installed health warning signs where pubic had access to creek bed. 	Monterey County Health Department	6	N	N											N/A	
2	2SSO11430	Active	Port of Oakland CS	Port of Oakland	891440	1.2	Certified	Colleen Liang	Director of Env Programs & Planning	05-DEC-23	22-DEC-23	22-DEC-23	Category 1 Spill	Scott's Seafood Bar & Grill	12/01/2023 09:00	12/01/2023 09:00	12/01/2023 09:00		-		Port staff discovered what appears to be a leaking sanitary sewer pipe located directly above the Oakland Estuary. The time when the leak began is currently unknown.	37.79401	-122.27724	Lower Lateral (Private)			1	A sanitary pipe has been leaking directly into the Oakland Estuary. The leaking pipe is suspended above the waters.	N				A sanitary pipe has been leaking directly into the Oakland Estuary. The leaking pipe is suspended above the waters.	1	0	Surface Water		The spill occurred due to a leak in a sanitary pipe located beneath a boardwalk, directly above surface waters of the Oakland estuary. The spill did not appear to spread laterally, and there was no visual evidence of a larger impact to surface waters. 	Y	37.79395	-122.27715							12/12/2023 09:11	The spill was first identified on December 1, 2023. It is unknown when the spill started. The leak in the sewer line was measured at approximately 10 drops per minute. No volume was recovered due to the location of the leak, and the leak entered the surface waters.  The pipe was replaced Friday, December 8 and 9 and the replacement and lack of a leak was confirmed December 12. 	See above. The total spill volume is unknown. As described above, approximately 10 drops per minute left the pipe between when the leak was first observed on December 1 and when the pipe was fixed.	Pipe Structural Problem/Failure - Controls		Lower Lateral		Cast Iron		40	Leaking pipe released drops of waste material into the Oakland estuary.	N	Other (specify below)	Replaced leaking pipe	The leaking section of pipe was replaced to prevent future spills. Any material which had been released was not recoverable.	Repaired Facilities or Replaced Defect		The pipe was replaced, and tenant who utilizes the pipe was requested to periodically inspect the pipe for future disrepair or leaks.	12/1/23: Leak identified.  12/7/23: Pipe repaired by tenant. Inspected by Port and found to be still leaking. 12/9/23: Pipe replaced by tenant.  12/12/23: Pipe confirmed to no longer be leaking by Port inspector	12/12/2023 09:11	The Port is conducting a construction project to replace a portion of the boardwalk at the location. On 12/1/23, Port staff noticed a leaking pipe underneath a tenant's structure above the boardwalk. The Port notified the tenant and requested that the tenant fix the pipe. On 12/7/23, the tenant notified the Port that the pipe was repaired. On 12/8/23, Port staff inspected and found that the pipe was still leaking. On 12/9/23, the tenant replaced the pipe. The Port inspected the fix on 12/12/23 and confirmed that the repair was adequate. 	N			Oakland Estuary	Estuary		The estuary adjacent to Jack London Square in Oakland.	None	Other (specify below)	The area is not accessible to the public. The pipe is under a boardwalk at Jack London Square and there is no public water at access near the location.  	N/A	0	Y	N												
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District	891441	1.4	Certified	John J. Hough	San Dist. Superintendent	05-DEC-23	18-DEC-23	18-DEC-23	Category 1 Spill	335996	12/04/2023 10:53	12/04/2023 11:15	12/01/2023 13:00		-		See Attached Spill Map	38.60085556	121.4095778	Lateral Clean Out (Public)			462	See Attached Spill Map	Y	See Attached Spill Map	117	0	See Attached Spill Map	262	152	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See Attached Spill Map.	Y	38.60085556	-121.4095778							12/04/2023 11:15	See Attached Volume Estimation	See Attached Volume Estimation	Root Intrusion		Lower Lateral		Vitrified Clay		61	No observed impacts of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified Sacramento County Department of Water Resources Drainage	See Attached Description of Events.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected the lateral with CCTV on December 4, 2023. Based on the findings, SacSewer adjusted the preventative maintenance cleaning frequency to 36 months from 24 months.	SacSewer inspected the lateral with CCTV on December 4, 2023. Based on the findings, SacSewer adjusted the preventative maintenance cleaning frequency to 36 months from 24 months.	12/04/2023 22:00	See Attached Description of Events.	N			Chicken Ranch Slough	Slough		The impacted water body is fenced and not accessible to the public. Chicken Ranch Slough is a concrete lined surface water that had light flow.	No observed impacts to aquatic life.	Other (specify below)	The impacted water body is fenced and not accessible to the public.	N/A	0	N	N												
9	9SSO10653	Active	City of Laguna Beach CS	Laguna Beach City	891368	2.2	Certified	Richard A Gonzales	Deputy Director of Public Works	29-NOV-23	02-FEB-24	02-FEB-24	Category 1 Spill	1580 Galen Dr.	11/29/2023 00:12	11/29/2023 00:12	11/29/2023 00:12	11/29/2023 08:20	23-7333	17-JAN-25	A broken valve on a force main.	33.5306	-117.77256	Force Main; Other (specify below)	Valve on forcemain	N/A	152705	Exiting manhole #G21-005 flowed down Galen Dr. to the storm drain located at the end of street. Flowing out to the Ocean via the Bluebird Outfall.	Y	Storm drain to the outlet on Bluebird Canyon Dr.	73895	0	Outfall at Bluebird Canyon Beach	78810	73895	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)	 With construction ongoing at the outfall located at Bluebird Canyon beach, a dam was built, thus capturing a portion of the spill before it hit the beach.	The spill location is Gaylan Dr and Bluebird Canyon Dr.	Y	33.530336	-117.772328							11/29/2023 07:20	Considering the 2  orifice in the pipe, the water was exiting at 19 psi. for the duration of the spill. the recovery consisted of the pumping of the water behind the dam at Bluebird Canyon Beach @ 200 gallons a minute for 5 hours and the 7 timed the vacuumed trucks were dumped, holding 1900 gallons.	City staff was at the location when the spill occurred and when the repair was complete. 	Collection System Maintenance Failure (specify below)	Scheduled removal of a 2  corroded ball valve was the cause of the spill. When the strap and valve were removed, the head pressure overwhelmed the workers. 	Force Main; Manhole		Concrete		50	The impact of the spill consisted of entering the beach waters and causing higher than normal bacteria samples. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Returned Portion of Spill to Sanitary Sewer System	 With construction ongoing at the outfall located at Bluebird Canyon beach, a dam was built, thus capturing a portion of the spill before it hit the beach.	City staff was at the location when the spill started till the repair was complete. The city attempted to alleviate the Impact by vacuuming as much of the spill as possible.	Repaired Facilities or Replaced Defect		No corrective action was taken as this was a scheduled removal of a 2  corroded ball valve was the cause of the spill. 	N/A	11/29/2023 08:30	Scheduled removal of a 2  corroded ball valve was the cause of the spill. When the strap and valve were removed, the head pressure overwhelmed expectations, causing the overflow.	N			Pacific Ocean	Ocean	Spill exiting outfall at Bluebird Canyon beach.	Ocean	N/A	Temporary Restricted Use	Postings were placed restricting swimming activities. 	OCHCA	1	N	Y	Bluebird outfall.	Samples are for bacteria levels.										
4	4SSO10388	Active	Glendale City CS	Glendale City	891457	1.1	Certified	Dan Hardgrove	Assistant Director of Public Works		26-DEC-23	26-DEC-23	Monthly Category 3 Spill	845 Coronado Dr.	11/25/2023 08:30	11/25/2023 09:24	11/25/2023 00:30				Property at 845 Coronado Dr. in their basement laundry room. See attached photos.	34.1582	-118.24493	Inside Building or Structure; Other (specify below)	Low point drain at base of stairs to basement laundry room evidently connected to city sewer line.		602	Spill confined in basement laundry room.	N						602	Building or Structure		Spill contained in basement laundry room and drained back into sanitary sewer.	N									11/25/2023 09:29	Measured the basement laundry room length and width. Estimated maximum depth was 12 inches. Length x Width x Depth.	Best information from property owner for start time. End time was no later than the time city crew jetted the mainline.	Other (specify below)	Uncertain	Gravity Mainline		Cast Iron		95	Flooded basement laundry room, appliances and laundry in process.	N	Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		No additional.	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect	 	City hired an emergency contractor to repair eroded  manhole shelves at both ends of sewer segment where blockage occurred and in one other manhole in next segment downstream. 		11/27/2023 07:30	Post spill CCTV inspection found a section of scaled cast iron pipe that could have held up rags and debris, that were most likely accumulating due to the eroded  manhole shelf in MH # 070899 . 		 N/A	11/27/2023 07:30														N/A	Eroded manhole shelves that were trapping debris were refurbished. See photos attached. Maintenance frequency under review.	See Item 20.d	See item 20.b	See item 20.b	N/A	See attached photos of shelf repairs. 	None at this time.	 N/A	
4	4SSO11374	Active	Unincorporated County Area CSMD-NW/County Sanitation District CS	Los Angeles Cnty DPW	891458	1.3	Certified	Robert Swartz	Sr. CE	07-DEC-23	20-DEC-23	20-DEC-23	Category 1 Spill	1219 (26514 Beecher Lane, Stevenson Ranch) Unincorporated County Area	12/05/2023 23:03	12/06/2023 00:30	12/05/2023 19:00	12/06/2023 02:40	23-7476		CSMD Map Sheet No. 1219 MMS No. 8594282	34.38855	-118.59874	Inside Building or Structure			5625	Upon arrival, sewage was escaping out of the shower drain into bathroom, hallway, bedroom, and garage. Sewage also escaped from the property's private lateral into the driveway and pool.	Y	Sewage spill entered storm drains located at 26514 Beecher Lane and 26508 Beecher Lane.	0	5575	Sewage spill entered storm drains located at 26514 Beecher Lane and 26508 Beecher Lane, which leads to PD 2471, PD 2458, PD 1984 - Unit 2, PD 2528, and South Fork Santa Clara River. 	5575	50	Drainage Conveyance System that discharges to surface water		Sewage spill entered storm drains located at 26514 Beecher Lane and 26508 Beecher Lane, which leads to PD 2471, PD 2458, PD 1984 - Unit 2, PD 2528, and South Fork Santa Clara River. 	Y	34.38855	118.59866	34.38843	118.59855					12/06/2023 01:15	CWEA SSCSC Manhole Gauge	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		25	N/A	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow		Upon arrival, sewage was escaping out of the shower drain into the bathroom, hallway, bedroom, and garage. Sewage also escaped from the private lateral onto the driveway and pool. We hydro-jetted from M/H No. 634 to M/H No. 40 with the penetrator nozzle to break down the heavy grease and rag stoppage. We recleaned the line with the warthog nozzle and then washed down and recovered all sewage off the driveways and streets of affected properties.  All required agencies were notified of the incident.	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Mainline will be put on a 90-day hydro periodic. Inspect & monitor condition.	Mainline will be put on a 90-day hydro periodic.	N/A	12/06/2023 04:03	Mainline will be put on a 90-day hydro periodic. Inspect & monitor condition.	N			South Fork Santa Clara River. 	River		South Fork Santa Clara River. 	Dry wash, NA	Other (specify below)	No impact.	Los Angeles County Flood Control District	0	N	N												
5S	5SSO10935	Active	Dry Creek CS	Roseville City	891462	1.3	Certified	Bryan Buchanan	Wastewater Utility Manager	07-DEC-23	19-DEC-23	19-DEC-23	Category 1 Spill	8800 Sierra College Blvd.	12/04/2023 14:54	12/04/2023 13:45	11/19/2023 14:54	12/04/2023 17:27	23-7449	18-JAN-24	Spill originated at 38.73997  -121.23003 End location 38.73978  -121.23521 See attachment for picture.	38.73997	-121.23003	Manhole			366900	Spilled based on a measurement of 1680� in Strap Ravine Start 38.73997 / -12123003 to 38.73978 / -121.23521	N				Spill appearance point was SMH B08-028, Ravin with water in it was about 35 feet away from it.	366900	84920	Surface Water		See attachments	Y	38.73991	-121.23006	38.73983	-121.2352					12/04/2023 16:31	Estimated Flow EDU and Domestic water usage.	Stamped E Mails and reports from residents.	Root Intrusion		Manhole		Vitrified Clay		37	Spilled water made it to a surface water	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Used Vactor trucks to mitigate effects of the spill. Excavated soil effected by spill. See attachment.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		Adjust the cleaning schedule move from 24 moths to 18 months, make repairs to the sewer manhole	Cleaning schedule was adjusted immediately on 4DEC23. The manhole damage does not pose a immediate risk and will be repaired by 30JAN24 due to wet weather access issues.	12/05/2023 19:00	See attachment	N			Strap Ravine	Wetland		Strap Ravine is part of a wetland	None	Other (specify below)	Strap Ravine does not have public access in the area of the spill.	City of Roseville	0	N	Y	10' from where the spilled water entered the surface water. 100' up and downstream of where the spill entered the water.	Ammonia and coliform.										
8	8SSO10574	Active	Garden Grove City CS	Garden Grove Sanitary District	891471	1.1	Certified	William Murray	Public Works Director		16-JAN-24	16-JAN-24	Monthly Category 3 Spill	12200 Industry	12/06/2023 13:11	12/06/2023 13:28	12/06/2023 12:30				District manhole #8160.	33.783879	-118.007908	Manhole			280	The spill flowed into the curb and gutter on the east side of Industry. It traveled north towards a swale on Belgrave. It then flowed west in the curb and gutter on the south side of Belgrave. It was flowing towards catch basin inlet #1895 but crews were able to place sandbags in the curb and gutter to fully contain the overflow. Crews also placed rubber mats and sandbags over the catch basin inlet to prevent any sewage from entering the storm drain system.	N						280	Street/Curb and Gutter (2 3)		The spill was contained in the street curb and gutter on Belgrave. Crews placed rubber mats and sandbags over the downstream catch basin inlet to prevent any waste water from entering the storm drain system.	Y	33.785609	-118.008509							12/06/2023 13:45	The overflow volume was calculated using a triangular flow calculation for curb and gutters. Width (.5 ft) x Depth (.04 ft) x (.5) = (.01 sq. ft) x Velocity (.83 ft/sec) = (.0083 cubic ft/sec) x (449 to convert to gal/min) = (3.7267 gal/min) x (75 min of spillage) = (279.5 gal, rounded up to 280 gal). 	Crews tried to find witnesses who could help determine an exact start time but they were unsuccessful. The original caller could not be contacted. A voice mail was left explaining that we would like his help determining an exact start time. At the time of this report we have still not heard back from him. The overflow must have started before the call came in at 1:11 PM. The District has determined a start time of 12:30 PM. 	Debris from Lateral		Gravity Mainline		Vitrified Clay		62	The spill was confined mostly to the curb and gutter along Industry northbound to Belgrave. It turned west in the swale that crosses Industry and flows into the curb and gutter on the south side of Belgrave. Crews contained the spill with sandbags just upstream of catch basin inlet #1895 on Belgrave. This street is in an industrial area so the traffic is minimal. This kept cars splashing through the overflow to a minimum.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	Notified Source Control staff from the Orange County Sanitation District.	District crews responded to a manhole overflow at 12200 Industry. District manhole #8160 was overflowing into the curb and gutter. The spillage was flowing towards a catch basin inlet around the corner at 7172 Belgrave. Crews were able to fully contain the spill in the curb and gutter with sandbags. Crews placed rubber mats over the catch basin inlet to prevent any sewage from entering the storm drain system. A combination truck was set up at District manhole #8158 and began to hydro jet the line to clear the blockage. A blockage was cleared at approximately 400 feet upstream of the manhole at 1:45 PM. Flow was returned to normal and the spill area was washed and vacuumed. All of the overflow was recovered. Crews decanted all of the waste and wash water into the sewer system.	Added Sewer to Preventive Maintenance Program; Other (specify below)	A Smart Cover flow monitor will be placed in manhole 8160.	District crews video inspected the line on December 13, 2023 to determine the cause of the overflow and to inspect the condition of the pipe. Crews noticed heavy buildup inside of the pipe with a paper-like substance. The buildup was coming from a lateral in front of Goodwin Company at 12300 Industry. Orange County Sanitation District staff was notified and they performed an investigation of Goodwin Company. The District has decided to add this sewer main to the one month hot spot list. It will be cleaned monthly starting January 2024. Also, a Smart Cover meter will be installed to constantly monitor the flow and alert District staff of any backups in the pipe. 		12/06/2023 14:15	The District CCTV equipment was used and found the source of the discharge to be Goodwin Company at 12300 Industry, which manufactures diesel exhaust fluid (DEF). The District notified Orange County Sanitation District and discussed this issue with their source control staff. They performed an investigation and determined that Goodwin was the source of the discharge. The DEF was crystalizing when it was discharged into the sewer line. This caused a buildup inside of the District sewer main and eventually caused a blockage. This blockage was the cause of the Sanitary Sewer Overflow. The Orange County Sanitation District  issued a notice of violation with Goodwin and ordered them to stop discharging the DEF into the sewer system. The notice of violation will be attached.		Crews video inspected the line to determine the source of the paper-like debris found in the line. A paper-like substance was observed coming from Goodwin Company at 12300 Industry. This information was given to Orange County Sanitation District and their source control staff performed an on-site inspection of Goodwin Company.	01/10/2024 07:00														The District notified Orange County Sanitation District and discussed this issue with their source control staff. They performed an investigation and determined that Goodwin Company at 12300 Industry was the source of the discharge of diesel exhaust fluid (DEF). The DEF was crystalizing when it was discharged into the sewer line. This caused a buildup inside of the District sewer main and eventually caused a blockage. This blockage was the cause of the Sanitary Sewer Overflow. The Orange County Sanitation District  issued a notice of violation with Goodwin and ordered them to stop discharging the DEF into the sewer system. The notice of violation will be attached.	This line will be added to the one month hot spot list and a Smart Cover flow monitor will be installed inside of the manhole. This monitor will alert GGSD staff of any backups in the line.	This line will be cleaned monthly. When the Smart Cover is installed in the manhole, the flow will be constantly monitored and the chart will be inspected daily.	None planned.	N/A.	None planned.	A screenshot verifying this line has been added to the hot spot list will be attached. 	N/A.	Crews video inspected the line to determine the source of the paper-like debris found in the line. A paper-like substance was observed coming from Goodwin Company at 12300 Industry. This information was given to Orange County Sanitation District and their source control staff performed an on-site inspection of Goodwin Company.	
2	2SSO10113	Active	Pittsburg City CS	Pittsburg City	891383	2.1	Certified	Pedro Ramos	Public works Supervisor 	30-NOV-23	08-DEC-23	08-DEC-23	Category 2 Spill	2201 Golf Club Rd	11/27/2023 12:06	11/27/2023 15:00	11/27/2023 12:06	11/27/2023 16:59	23-7300		The spill was flowing out the manhole buried under vegetation North of 2201 Golf club Rd and it flowed 645 ft through an open drainage conveyance system.      	38.01461	-121.91101	Manhole	Entered an open conveyance system and travel 645 ft.	The spill traveled 645 ft from the manhole to through and open vditch drainage conveyance system.	1701	The spill was flowing out of a manhole into and open drainage system approx. 645 feet. 	Y	The open drainage system is located 50ft East from the manhole where the spill entered the drainage system	1701	0			1701	Drainage Conveyance System		The spill was flowing out of manhole #4358 buried under some vegetation 300 feet north of 2201 Golf Club Rd. The spill flowed approximately 645 feet from the manhole through the drainage conveyance system.	Y	38.01461	-121.91101							11/27/2023 16:30	The volume was estimated using the Upstream Connections Method.	The Upstream Connections Method was used to calculate start and end time.	Debris-Rags; Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Other (specify below)	AC Pipe	42	Contact unpaved surface and entered into open storm drain conveyance system approximately 645ft. 	N	Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Please see attachment with the description of spill response.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Schedule for cleaning was adjusted and added to our Chronic Service  list that will be Cleaned every 3 months.	This section of sewer main line will be Cleaned every 3 months.	11/28/2023 14:30	Collections crew  CCTV'd the sewer pipe and found heavy grease deposits as well as, root intrusion  and 2 sags in the line at the beginning and end of the main sewer line. joint separations were also found in the sag locations.   	N												N													
2	2SSO10102	Active	Calistoga CS	Calistoga City Public Works Dept.	891477	1.3	Certified	Brandon Gray	Maintenance Technician ll		08-DEC-23	08-DEC-23	Monthly Category 3 Spill	In front of 1506 Lincoln 	11/09/2023 15:30	11/09/2023 15:35	11/09/2023 15:00				Trunk line breakage caused by independent contractor. No photos taken all spillage was absorbed into native soil. 	38.58041	-122.57807	Gravity Mainline		None	500	No photos taken all spillage was absorbed into native soil. 	N						0	Other (specify below)	Excavated trench line.	Contained to 15' of trench line where pipe was broken.		38.58041	-122.57806							11/09/2023 15:15	Calculated by RGH Consulting Representative.	Flow and volume.	Construction Diversion Failure		Gravity Mainline		Vitrified Clay		100	Little to no impact. Spillage was absorbed immediately into native soil.	N	Other (specify below)	Spillage was absorbed immediately into native soil.	 Spillage was absorbed immediately into native soil.	Repaired Facilities or Replaced Defect		Trench was back filled to prevent another breakage.		11/09/2023 15:45	Private contractor stepped on clay pipe and caused breakage.		N/A	11/09/2023 15:45														Contractors job site was red tagged until further notice.	Trench was back filled to prevent another breakage.	Not applicable. 	The repair was made, replacement to follow approved plans and permit issuance.	Repaired and inspected.	In progress.	N/A	Repair was made when city employee arrived.	N/A	
2	2SSO10224	Active	Burlingame Hills SMD	San Mateo County DPW	891478	1.1	Draft Submitted			08-DEC-23			Category 2 Spill	135 Valdeflores Dr	12/05/2023 19:10	12/05/2023 19:49	12/05/2023 19:37	12/05/2023 21:42	23-7474		The spill originated from a toilet in a house and was caused by PG&E installing a pole that hit the sewer main.  Appearance Point.JPG	37.575127	-122.390831	Inside Building or Structure			1071	The spill was in a building, unpaved surface, paved surface, and storm drain.	Y	The spill went into a drainage conveyance system that discharged to the ground.	0	552			511	Building or Structure; Drainage Conveyance System that discharges to surface water; Paved Surface; Surface Water		The spill went into the building, then spilled into the dirt area and paved surface. Part of the spill went into a storm drain which drains above ground to a culvert. The culvert leads to surface water, but the spill did not reach surface water.	Y	37.575127	-122.390831							12/05/2023 20:32	The volume of contained spill in room was calculated and the estimated observed spill rate and duration of the active flow was used to calculate the total spill volume.	The residents were not home when the spill started and the spill was initially contained in the room. The resident called when the spill restarted and that start time was used for the volume calculation. The crew also noticed the second start time and end time when they were flushing the line. This time was used for the volume calculation.	Damage by Others Not Related to Collection System Construction/Maintenance		Gravity Mainline		Vitrified Clay		87	The spilled entered into a storm drain that flows to Easton Creek	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		The homeowner called a restoration company that pumped the water out of the room and into the sanitary sewer manhole. The restoration company also cleaned up the room and the front of the doorway/driveway. The sewer crew cleaned up the spill in the dirt area.	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		The cause of the spill was because PG&E installed a pole that hit the sewer line. The sewer line was USA marked. PG&E removed the pole and repaired the sewer main.	The spot repair has been completed	12/06/2023 15:00	The cause of the spill was because PG&E installed a pole that hit the sewer line. The sewer line was USA marked. PG&E removed the pole and repaired the sewer main.	N												N													
4	4SSO10384	Active	Duarte City CS (SSO program)	Duarte City	891488	1.3	Certified	Robert Swartz	Sr. CE	12-DEC-23	26-JAN-24	26-JAN-24	Category 1 Spill	2166-0262 (1480 Three Ranch Road, Duarte)	12/10/2023 18:35	12/10/2023 19:50	12/10/2023 18:00		-		CSMD Map Sheet No. 2166 Manhole No. 262 MMS No. 8596840 Manhole No. 262 was overflowing.	34.13297	-117.97278	Manhole	Manhole No. 262		900	Sewage was overflowing from Manhole No. 262 onto the street.  A portion of the sewage spill entered a storm drain located at 1472 Three Ranch Road.	Y	A portion of the sewage spill entered a storm drain located at 1472 Three Ranch Road.	0	800	A portion of the sewage spill entered a storm drain located at 1472 Three Ranch Road, which leads to Drain - BI 0429 - Line B, BI 0030 - Duarte Channel, Buena Vista Channel Santa Fe Channel to Sawpit Wash, and Santa Anita Wash - Rio Hondo.	800	100	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		A portion of the sewage spill entered a storm drain located at 1472 Three Ranch Road, which leads to Drain - BI 0429 - Line B, BI 0030 - Duarte Channel, Buena Vista Channel Santa Fe Channel to Sawpit Wash, and Santa Anita Wash - Rio Hondo.	Y	34.13272	-117.97308							12/10/2023 20:15	CWEA SSCSC Manhole Gauge	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		63	N/A	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Upon arrival, Manhole No. 262 was overflowing.  We set up containment with a combination truck at the storm drain; and broke down heavy grease stoppage with the rodder. Afterward, the street, curb, and gutter were thoroughly washed with fresh water.	Other (specify below)	Will inspect the sewer using CCTV to determine if further action is needed.	Will inspect the sewer using CCTV to determine if further action is needed.	N/A	12/10/2023 21:00	Will inspect the sewer using CCTV to determine if further action is needed.	N		02/10/2024 12:00	Rio Hondo	Wash		Concrete lined open channel	N/A	Other (specify below)	No impact.	LACFCD 	0	N	N												
3	3SSO10340	Active	Gilroy CS	Gilroy City	891489	1.3	Certified	Matthew Jones	Deputy Director of Public Works		03-JAN-24	03-JAN-24	Monthly Category 3 Spill	2320 Stonecress St	11/24/2023 10:05	11/24/2023 11:10	11/24/2023 09:00				spill originated at sanitary sewer MH 470 located within a private property open field.	37.02289	-121.6219	Manhole			906	photos submitted	Y	end of the line catch basin that drains to empty land/private property 	45				212	Drainage Conveyance System; Paved Surface; Unpaved Surface		Manhole spill went 329' from MH 471to catch basin 2337	Y	37.02275	-121.62268							11/24/2023 11:30	measured gallons was method used to calculate spill	assumptions used were investigation using time spill was reported and last seen dry. Along with time crew restored flow to system and cleared plug.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		3	dirt area directly around mh and private paved pathway to catch basin was impacted due to spill.   694 gallons lost to saturation	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		spill response consisted of restoring service, documenting spill and cleaning by way of the 2 vactor method. sanitizing , wash down and vacuumed 	Other (specify below)	educate and inform public on the use of F.O.G and flushable wipes(rags).	Continue to educate public on the use and disposal of FOG, and rags to help stop future spills.		11/24/2023 16:30	crew Investigation shows grease caused blockage. Agency will continue to educate public on the disposal of FOG's		N/A	11/24/2023 16:30														N/A	N/A	N/A	 not needed at this time	N/A	N/A	N/A	N/A	N/A	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	891493	1.2	Certified	Kent Vian	Asst. Deputy Director		03-JAN-24	03-JAN-24	Category 1 Spill	NOT# 40201041731 3902 CLARK ST.	12/10/2023 15:19	12/10/2023 15:45	12/10/2023 15:19	12/10/2023 19:51	23-7563		THE SPILL ORIGINATED FROM A MECHANICAL FAILURE IN A 4  CI SEWER LATERAL OWNED BY THE CITTY.	32.74576	-117.18448	Upper Lateral (Public)	N/A	N/A	1690	THERE WAS A MECHANICAL FAILURE ON A CITY LATERAL THAT WAS ABOVE GROUND ON PILLERS AND GAVE OUT DUE TO AGE OF PIPE.	N	N/A	0	0	SPILL CAME FROM A CITY LATERAL WITH A LONG CRACK IN IT.	1690	0	Surface Water; Unpaved Surface	N/A	THE FINAL DESTINATION OF SPILL WAS RIGHT BELOW THE CITY LATERAL WHICH WAS ABOVE GROUND	Y	32.74576	-117.18448							12/10/2023 20:57	VISUAL CALCULATED METHOD	ASSUMPTIONS OF THE START TIME WERE MADE WHEN DISPATCH ASSUMPTIONS DISPATCH RECEIVED THE CALL, AND THE END TIME WAS DETERMINED WHEN THERECEIVED THE CREW VISUALLY CONFIRMED IT HAD STOPPED.	Pipe Structural Problem/Failure - Controls	N/A	Upper Lateral	N/A	Cast Iron	N/A	56	IMPACTS OF THE SPILL WERE A CANYON JUST BELOW THE PIPE THAT WAS SITTING ON A TRESSELL	N	Mitigated Effects of Spill (specify below); Restored Flow	N/A	UPPON ARRIVAL CREWS MITIGATED SPILL TRACKED FINAL DESTINATION CALLED OUT CONSTRUCTION CREW TO REPAIR SEWER LATERAL CCTV SEWER MAINS DOWNSTREAM OF BAD PIPE.	Inspected Sewer Using CCTV to Determine Cause	N/A	PIPE WAS REPLACED 	N/A	12/10/2023 20:57	UPON INVESTIGATION WE FOUND A BROKEN SEWER PIPE SITTING ABOVE GOUND	Y	Lateral may be privately owned. City is erring on the side of caution on verifying as a City spill, Investigation is being conducted by Development Services and our GIS Departments.	01/19/2024 09:16	None	Other (specify below)	CANYON	N/A	N/A	Other (specify below)	NO ACCESS TO PUBLIC	N/A	0	N	N	N/A	N/A									Lateral may be privately owned. City is erring on the side of caution on verifying as a City spill, Investigation is being conducted by Development Services and our GIS Departments.	
2	2SSO10179	Active	San Jose City CS	San Jose City	891494	1.1	Certified	Ben Nguyen	Senior Engineer		15-DEC-23	15-DEC-23	Monthly Category 3 Spill	1467 Koch Lane 	11/19/2023 11:46	11/19/2023 12:15	11/18/2023 23:00				RP noticed smell around 11PM on 11/18/23.  RP checked his crawl space and noticed leakage from his lateral in the crawl space under his house, and called the City. 	37.27863	-121.89404	Other (specify below)	Private Lateral		117	Only appearance point found was in the crawl space of the resident.  	N						0	Other (specify below)	The ground under the house.  	Spill was dripping from the lateral attached under the house's crawl space.  Spill percolated to the soil.  										11/19/2023 12:45	Per capita method was used to estimate the volume with 15.5 hr x 1 household x 7.5 gal/household/hour = 116.25 gal; round up to 117 gallons.  	Per capita method was used.  	Debris-General		Gravity Mainline		Vitrified Clay		20	Only impact was the crawl space of the resident home.  No other public area was impacted.   	N	Cleaned Up (specify below); Other (specify below)	General clean up and crew applied granular odor absorbent.  	Crew cleared the plug, helped the resident w/ some general clean up of the crawl space and applied odor absorbent. 	Adjusted Schedule/Method of Preventive Maintenance; Repaired Facilities or Replaced Defect		Cleaning cycle is adjusted with shorter cycle.  Pipe patching will be performed for the found defects. 		11/19/2023 12:45	Team discussed the found leakage and confirmed no other appearance point was found.  No other spill from neighbor's lateral/clean-out. Cause was general debris in the main.  		n/a	12/06/2023 14:00														None	N/a	Adjusted to 24 month cycle. 	Pipe will be rehabilitated with pipe patching. 	Pipe will be revideod in 12 months.  	n/a	n/a	n/a	n/a	
2	2SSO10129	Active	East Palo Alto Sanitary Dist. CS	East Palo Alto Sanitary District	891500	1.3	Ready to Certify						Monthly Category 3 Spill	2280 Garden st	12/04/2023 09:35	12/04/2023 10:03	12/04/2023 09:09				don't have pictures	37.467	-122.12748	Manhole			500	no pictures	Y	no pictures	160				100	Drainage Conveyance System; Unpaved Surface		spill was on Garden st clodge was at the end of the block no gps at the moment 	Y	37.46699	-122.12716							12/04/2023 09:04	don't know	the resident said that it had start coming up 30 min before arriving on site	Debris-Rags		Manhole		Acrylonitr. Butadiene Styrene (ABS)		10	because of rags and tissue it caused the sewage to exit from man hole on to the street to the curb and into the drainage	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned All Spill to Sanitary Sewer System		put dirt on ground to contain spill from going into drainage used vactor truck to vacuum up spill	Added Sewer to Preventive Maintenance Program; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause		added man hole to hot spot list		12/05/2023 08:05	don't know		check man hole three days a month 	12/12/2023 14:27														don't know	no modification needed 	add street to hot spot	don't know	no repair needed rags and tissue was blocking	none	none	vacuum up sewage with vactor truck cleaned area 	check man hole three days a month 	
4	4SSO10425	Active	San Dimas City CS	San Dimas City	891502	1.3	Amended	Robert Swartz	Sr. CE		26-JAN-24	26-JAN-24	Monthly Category 3 Spill	2429-0085 (McKinley Avenue, San Dimas)	12/10/2023 10:25	12/10/2023 12:00	12/10/2023 08:30				CSMD Map Sheet No. 2429 Manhole No. 85 MMS No. 8596831 Manhole No. 85 was overflowing.	34.08943	117.79298	Manhole	Manhole No. 85		300	Spill went onto the asphalt and grassy area (Bonelli Park Campgrounds). 	N						30	Unpaved Surface		Spill went onto the asphalt and grassy area (Bonelli Park Campgrounds). 	N									12/10/2023 11:45	CWEA SSCSC Manhole Gauge	The start time is obtained from the reporting party, the end time is when the crew clears the obstructions, and the overflow stops.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		52	N/A	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		We broke down heavy grease and rags stoppage with a combo truck. All necessary agencies were notified.	Other (specify below)	Will inspect sewer using CCTV.	Will inspect the sewer using CCTV to determine if further actions are needed.		12/10/2023 14:00	Will inspect the sewer using CCTV to determine if further actions are needed.		Will inspect the sewer using CCTV to determine if further actions are needed.	02/10/2024 12:00														N/A	N/A	Will inspect the sewer using CCTV to determine if further actions are needed.	N/A	N/A	N/A	N/A	N/A	Will inspect the sewer using CCTV to determine if further actions are needed.	
2	2SSO10154	Active	Mill Valley City CS	Mill Valley City	891504	1.2	Certified	Andrew Poster	Director of Public Works	12-DEC-23	14-DEC-23	14-DEC-23	Category 1 Spill	530 Cascade Drive	12/10/2023 11:19	12/10/2023 11:41	12/10/2023 10:50	12/10/2023 13:30	23-4558		Originating from Manhole D35 to the street, the spill then made it's way to the seasonal creek on the side of the road. 	37.91237	-122.5689	Manhole			100	Originating from Manhole D35 to the street, the spill then made it's way to the seasonal creek on the side of the road. 	Y				Manhole D35	50	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Surface Water		Originating from Manhole D35 to the street, the spill then made it's way to the creek on the side of the road. 	Y	37.91237	-122.5689							12/10/2023 11:55	Drop bucket method	Call log date/ time stamps	Debris-wipes/Non-disposables		Gravity Mainline		Vitrified Clay		53	Old Mill Creek	N	Contained All or Portion of Spill; Restored Flow		Spill stopped and cleaned. 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Rod line to prevent future spills. 	Scheduled to be rodded 12/13/2023 (on hot-spot list).	Scheduled to be rodded 12/13/2023 (on hot-spot list).	12/10/2023 12:00	When CCTVing line, found roots at locations. 	N			Old Mill Creek	Other (specify below)	Creek	Creek next to road.	None	Other (specify below)	None	City of Mill Valley	0	N	N												
8	8SSO10585	Active	Lake Hemet MWD CS	Lake Hemet Municipal Water District	891505	1.2	Certified	Mike Gow	General Manager		12-DEC-23	12-DEC-23	Monthly Category 3 Spill	132 Sulgrave Drive	12/09/2023 08:33	12/09/2023 08:53	12/09/2023 08:00				132 Sulgrave Drive, manhole at end of cul de sac that spilled onto concrete gutter, flowing about 15 feet into catch basin then flowing westerly about 125 feet in storm pipe into dirt ditch where entire volume soaked into dirt within 45 feet.	33.7486	116.9434	Manhole			415	132 Sulgrave Drive, manhole at end of cul de sac that spilled onto concrete gutter, flowing about 15 feet into catch basin then flowing westerly about 125 feet in storm pipe into dirt ditch where entire volume soaked into dirt within 45 feet.	Y	132 Sulgrave Drive, manhole at end of cul de sac that spilled onto concrete gutter, flowing about 15 feet into catch basin then flowing westerly about 125 feet in storm pipe into dirt ditch where entire volume soaked into dirt within 45 feet.	0				0	Drainage Conveyance System; Street/Curb and Gutter (2 3); Unpaved Surface		132 Sulgrave Drive, manhole at end of cul de sac that spilled onto concrete gutter, flowing about 15 feet into catch basin then flowing westerly about 125 feet in storm pipe into dirt ditch where entire volume soaked into dirt within 45 feet.		33.7486	116.9434							12/09/2023 10:15	Visually estimated flow at 3 gpm for 135 minutes duration	Visually estimated flow at 3 gpm for 135 minutes duration	Fats, Oil and Grease (FOG); Other (specify below)	Grit	Manhole		Vitrified Clay		50	132 Sulgrave Drive, manhole at end of cul de sac that spilled onto concrete gutter, flowing about 15 feet into catch basin then flowing westerly about 125 feet in storm pipe into dirt ditch where entire volume soaked into dirt within 45 feet.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow		Treated concrete gutter, street, and driveway with chlorine solution, pressure washed, and retreated with chlorine solution.  Dirt ditch was treated with 15 pounds of lime.	Added Sewer to Preventive Maintenance Program; Other (specify below)	Manhole was last inpsected October 12, 2023.	Manhole was last inpsected October 12, 2023 and is on enhanced maintenance schedule.		12/09/2023 12:00	Grease and grit accumulated in manhole causing blockage		None	12/09/2023 16:50														N/A	Monitor more frequently, especially after holiday	Every 6 months	N/A	N/A	N/A		N/A	None	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District	891512	1.1	Certified	David Leamer	Assistant Superintendent		18-DEC-23	18-DEC-23	Monthly Category 3 Spill	335445	11/19/2023 17:29	11/19/2023 17:58	11/19/2023 17:00				See Attachment, Spill Map and Photos	38.60754	-121.28239	Lateral Clean Out (Public)	N/A		131	See Attachment, Spill Map and Photos	Y	See Attachment, Spill Map and Photos	120				128	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		See Attachment, Spill Map and Photos	Y	38.6075	-121.2825	38.6055	-121.28675					11/19/2023 18:50	See Attachment, Spill Volume Estimation.	See Attachment, Spill Volume Estimation.	Root Intrusion		Gravity Mainline		Vitrified Clay		60	No observed impact of spill	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Broke stoppage in SacSewer mainline with bulldog nozzle, ran bulldog from downstream manhole to upstream manhole to remedy heavy roots. Followed up cleaning with chain flail nozzle and CCTV inspected line.   The SacSewer cleanout overflowed to an unpaved area, to the sidewalk, to the curb and gutter, to a storm drain inlet at 10888 Walnutwood Way, entering the storm drain system.   There was stagnant water in the storm drain system.   The following locations were tested:  �       SDMH at 10917 Walnutwood Way � for upstream comparison purposes  �       SDMH at 2267 Zindandel Dr � presence of sewage detected  �       SDMH at 2301 Zindandel Dr � presence of sewage detected  �       SDMH at 2460 Zinfandel Dr � no presence of sewage detected	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected mainline with CCTV on 12/11/23. Based on findings, SacSewer increased preventative cleaning frequency to 12 months from 24 months.		12/12/2023 07:28	The SacSewer cleanout overflowed to an unpaved area, to the sidewalk, to the curb and gutter, to a storm drain inlet at 10888 Walnutwood Way, entering the storm drain system.   There was stagnant water in the storm drain system.   The following locations were tested:  �       SDMH at 10917 Walnutwood Way � for upstream comparison purposes  �       SDMH at 2267 Zindandel Dr � presence of sewage detected  �       SDMH at 2301 Zindandel Dr � presence of sewage detected  �       SDMH at 2460 Zinfandel Dr � no presence of sewage detected  SacSewer crews cleaned the affected aboveground area and recovered the spill on land using a hydro-vacuum truck. Crews also hydro-cleaned the affected SD system from the storm drain inlet at 10888 Walnutwood Way to the SDMH at 2460 Zinfandel Drive.		None	12/12/2023 07:28														N/A	SacSewer increased preventive cleaning frequency from 24 months to 12 months.	SacSewer increased preventive cleaning frequency from 24 months to 12 months.	N/A	SacSewer inspected mainline with CCTV on 12/11/23.	N/A	SacSewer increased preventive maintenance frequency on 12/12/23	None	None	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	891513	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		04-APR-24	04-APR-24	Monthly Category 3 Spill	11541 North Blucher Avenue	12/12/2023 16:01	12/12/2023 12:38	12/12/2023 16:01				The initial crew arrived at 12:58 pm and discovered a Department of Water and Power (DWP) water main break. The crew contained the maintenance hole that was holding water while repairs are being performed. DWP opened the water main and a spill occurred at 4:01 PM. The crew removed the blockage, and the backup ceased at 4:21 PM. A second spill occurred on a clean out located at 15543 West Rinaldi Street due to a stuck tool at 5:56 PM. The crew removed the tool and the backup ceased at 6:20 PM. A City contractor was mobilized to make all necessary repairs. All necessary clean-up was then performed.	34.27944	-118.470767	Lateral Clean Out (Private); Manhole		None.	646	Sanitary Sewer Overflow 	N		0				646	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	34.279440  -118.470767	Y	34.27944	-118.470767	34.279554	-118.470459					12/12/2023 18:20	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.	Spill flowrate and volume determination based on flowout pickhole or opening Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening0.5inches Flowrate per pickole/opening (gpm)1gpm # of pickholes/openings1 Total flowrate (gpm)1gpm Duration of spill (minutes)20minutes Total flow (gallons)29gallons  Spill flowrate and volume determination based on flow from around the ring of a MH cover Diameter of MH27inches Gap between Frame and cover0.125Based on 1/8  gap Height of water around Cover0.125inches Flowrate from ring/gap (gpm)16gpm Total flowrate (gpm)16gpm Duration of spill (minutes)20minutes Total flow (gallons)326gallons  Spill flowrate and volume determination based on flow from around the ring of a MH cover Diameter of MH7inches Gap between Frame and cover0.125Based on 1/8  gap Height of water around Cover1inches Flowrate from ring/gap (gpm)12gpm Total flowrate (gpm)12gpm Duration of spill (minutes)24minutes Tota	Other (specify below)	Department of Water and Power water main break	Other (specify below)	Department of Water and Power water main break	Vitrified Clay		562	On Tuesday, December 12, 2023 11:39 AM, the Clean Water Conveyance Division (CWCD) received a report of sewer trouble at 11541 North Blucher Avenue (TG 501-G1). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crews attempted to remove the blockage and subsequently mobilized the City contractor the make the necessary repairs. The cause of the blockage was due to a DWP water main break.  CWCD crews set up containment and the backup ceased at 6:20 PM. All the necessary clean-up steps were performed.  It was estimated that approximately 646 gallons of sewage backed out of the sewer as a result of the blockage. Approximately 291 gallons of the backup was contained at the clean out located at the property at 15543 West Rinaldi Street. The remaining 355 gallons was contained at the City of Los Angeles maintenance hole structure. The crew was able to establish contain	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Returned All Spill to Sanitary Sewer System	City Contractor mobilized to perform assessment and repairs	On Tuesday, December 12, 2023 11:39 AM, the Clean Water Conveyance Division (CWCD) received a report of sewer trouble at 11541 North Blucher Avenue (TG 501-G1). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crews attempted to remove the blockage and subsequently mobilized the City contractor the make the necessary repairs. The cause of the blockage was due to a DWP water main break.  CWCD crews set up containment and the backup ceased at 6:20 PM. All the necessary clean-up steps were performed.  It was estimated that approximately 646 gallons of sewage backed out of the sewer as a result of the blockage. Approximately 291 gallons of the backup was contained at the clean out located at the property at 15543 West Rinaldi Street. The remaining 355 gallons was contained at the City of Los Angeles maintenance hole structure. The crew was able to establish contain	Repaired Facilities or Replaced Defect		A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crews attempted to remove the blockage and subsequently mobilized the City contractor the make the necessary repairs. The cause of the blockage was due to a DWP water main break.  CWCD crews set up containment and the backup ceased at 6:20 PM. All the necessary clean-up steps were performed.		12/12/2023 18:20	The cause of this overflow on the 8-inch main line sewer serving the referenced area is a pipeline collapse due to a Department Of Water And Power water main break. The emergency sewer contractors constructed a bypass system to divert flow around the damaged portion of the pipeline. City staff and the emergency contractors are assessing the condition of the collapsed section of sewer and are making all necessary repairs.		Not At This Time.	12/12/2023 18:20														None At This Time.	The cause of this overflow on the 8-inch main line sewer serving the referenced area is a pipeline collapse due to a Department Of Water And Power water main break. The emergency sewer contractors constructed a bypass system to divert flow around the damaged portion of the pipeline. City staff and the emergency contractors are assessing the condition of the collapsed section of sewer and are making all necessary repairs.	This Pipeline Will Be Placed On A Semi-Annual Maintenance Schedule. The City Emergency Contractors Made All Necessary Repairs.	This Pipeline Will Be Placed On A Semi-Annual Maintenance Schedule. The City Emergency Contractors Made All Necessary Repairs.	This Pipeline Will Be Placed On A Semi-Annual Maintenance Schedule. The City Emergency Contractors Made All Necessary Repairs.	None At This Time.	This Pipeline Will Be Placed On A Semi-Annual Maintenance Schedule. The City Emergency Contractors Made All Necessary Repairs.	On Tuesday, December 12, 2023 11:39 AM, the Clean Water Conveyance Division (CWCD) received a report of sewer trouble at 11541 North Blucher Avenue (TG 501-G1). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crews attempted to remove the blockage and subsequently mobilized the City contractor the make the necessary repairs. The cause of the blockage was due to a DWP water main break.  CWCD crews set up containment and the backup ceased at 6:20 PM. All the necessary clean-up steps were performed.  It was estimated that approximately 646 gallons of sewage backed out of the sewer as a result of the blockage. Approximately 291 gallons of the backup was contained at the clean out located at the property at 15543 West Rinaldi Street. The remaining 355 gallons was contained at the City of Los Angeles maintenance hole structure. The crew was able to establish contain	Not At This Time.	
5S	5SSO10901	Active	City of Sacramento Utilities CS	Sacramento City	891515	1.2	Certified	Kevin Guerra	Superintendent	13-DEC-23	21-DEC-23	21-DEC-23	Category 2 Spill	1229 Ridgeway Dr.	12/10/2023 14:50	12/10/2023 16:04	12/10/2023 10:30	12/10/2023 18:42	23-7562		Spill appeared from a sewer manhole in the street in front of 1210 Ridgeway DR..	38.53048	-121.51091	Manhole			3460	The spill exited the pick hole on the manhole lid and traveled south in the gutter pan to a nearby drain. Where it then traveled in the drainage system until it was trapped near a drainage sump. 	Y	The drain inlet went into a 6 inch main that tied into a 60 inch main one street away. It traveled into a 72 inch main 2 sections away, where it stayed until it became trapped downstream near our sump station. We verified the sump did not run during the spill time frame.	3460	0			3460	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		Spill appeared from a pick hole on a manhole lid onto the street, It then traveled to a gutter pan and then into the drainage system through a drain inlet.  It was captured and collected downstream near the drainage sump out of the conveyance system.	Y	38.53048	-121.51091	38.52281	-121.51247					12/10/2023 16:16	The spill volume was calculated by using the start time given to us from witnesses, and pictures that were taken when we arrived on site. We compared the picture taken onsite to our manhole spill gauge with pictures of different GPM rates coming from manholes. We multiplied our time in minutes by the GPM we identified, to get the estimated total. We then used ammonia test strips to get a base test of what was in the system without the spill, and an actual result at the entrance into the drainage system. We used the base to find the endpoint in the drainage system and recovered the spill from there.	We were given the estimated start time from two different witnesses, and staff that relieved the blockage documented what time they did so.	Root Intrusion		Gravity Mainline		Vitrified Clay		75	The spill did not impact the conveyance system or any of the surrounding area.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		The responding staff immediately had the drainage sump downstream of the spill shut down. They then tried to contain the spill that was active by placing debris in the spills path to the gutter drain. Once the spill was relieved they began testing and trying to find the endpoint, they tested at the sump and got a negative test and then had a valve closed to keep the spill in the conveyance system. Knowing that it was trapped they calculated what was in the drainage system in between the valve and the entrance into the system. And removed all of what was in the system that contained the spill. 14,500 gallons was removed in order to capture the 3,460 gallons of the spill and returned to the sewer system. At the appearance point site all debris was removed from the area and it was thoroughly washed down and cleaned from the manhole, to the gutter drain the spill entered.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		After finding the cause of the spill, the main was cleaned and roots removed from the segment. This has all been completed within the last few weeks.	The spill was added to our root abatement work orders and will have maintenance performed  annually. 	12/11/2023 01:00	We found this spill was on a chemical root removal program schedule, and when the program ended it was never put on a new schedule to be maintained. It since has been added to an annual maintenance program.	N												N													
2	2SSO10129	Active	East Palo Alto Sanitary Dist. CS	East Palo Alto Sanitary District	891516	1.2	Certified	Darrin Young	Lead	13-DEC-23	26-MAR-24	26-MAR-24	Category 1 Spill	2280 Garden st	12/04/2023 09:28	12/04/2023 10:06	12/04/2023 09:00	12/12/2023 13:38	-		no pictures	37.467	-122.12734	Manhole			1000	no pictures took measurements of the area that was wet 	Y	no pictures	800	50	on top of manhole sewage pushed thru holes on top. No pictures	1000	900	Street/Curb and Gutter (2 3)		spill reached gutter and storm drain and street 	Y	37.46701	-122.12666							12/13/2023 09:02	n/a	n/a	Debris-wipes/Non-disposables		Manhole		Acrylonitr. Butadiene Styrene (ABS)		10	manhole was overflowing due to wipes clogged up system 	N	Cleaned Up (specify below); Contained All or Portion of Spill		manhole was overflowing due to wipes clogged up system put adsorb it to contain spill from going any further sucked up as much with Vactor sweep all wipes and sprayed area down 	Added Sewer to Preventive Maintenance Program; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause		cctved line to make sure this want occur again put on hot spot no pictures taken	n/a	12/13/2023 09:01	cctv the line and found no problems with mainline 	N			n/a	Other (specify below)	storm drain	n/a no pictures taken	n/a	Temporary Restricted Use		n/a	0	N	N												
2	2SSO10099	Active	Burlingame City CS	Burlingame City PWD	891517	1.2	Certified	RICK HORNE	Streets, Storm Drain and Sewer Division Manager		23-JAN-24	23-JAN-24	Monthly Category 3 Spill	1321 Montero	12/08/2023 13:50	12/08/2023 14:03	12/08/2023 08:10				1321 Montero Dr. Burlingame Ca. 94010. The SSO had 3 appearance points: the lower lateral cleanout in the utility easement behind the address. A private lateral clean out in the residents back yard/ patio area, and a toilet nearest the back yard/patio area of the home.	37.57934	-122.3779	Inside Building or Structure; Lateral Clean Out (Private); Lateral Clean Out (Public)			67	The extent of the spill was located in the utility easement, back yard patio area and a downstairs toilet inside home.	N						67	Building or Structure; Other (specify below); Unpaved Surface	back yard / patio area	The spill was contained to the utility easement, backyard patio area, and bathroom at the rear of the home.										12/08/2023 14:10	Staff members S38 and S25 removed the spill and affected soil from the easement. Staff removed 2 five gallon buckets that were each 80% full, and disinfected the area. The debris in the two buckets is reflected in the spill volume estimate of 8 gallons.   City staff determined that approximately 59 gallons had discharged into back yard/patio area, and rear bathroom using the Upstream Connection Method and adding 8 gallons for the easement spill.  	The spill start time was gathered by Interviewing of reporting party. The spill end time was determined by city staff after relieving the blockage.	Root Intrusion		Lower Lateral		Polyvinyl Chloride (PVC)		4	Spill was contained to the utility easement, backyard / patio area, and small bathroom in home with minimal impact.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	Wash down, vacuum, and disinfect area. returned to sanitary sewer.	Staff checked the manhole behind the residence and determined the main line was down. S38 and S25 hand rodded the city clean out and relieved the blockage in the lateral at 2:10pm. Staff removed the spill and affected soil from the easement, Staff also washed down and disinfected the back yard/patio area back into the private clean out. The spill was self contained in the utility easement and back yard / patio area.	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		Staff inspected the sewer lateral on 12-13-23 and determined that root intrusion was a factor in the backup. A repair was scheduled and completed on January 4, 2024. 		01/04/2024 20:54	Staff inspected the sewer lateral with CCTV on 12-13-23 and determined that root intrusion was a factor in the back up. A repair was scheduled and completed on January 4, 2024. 		None, repair made	01/04/2024 21:04														N/A	N/A	N/A	N/A	Staff inspected the sewer lateral on 12-13-23 and determined that root intrusion was a factor in the back up. A repair was scheduled and completed on January 4, 2024. 	N/A		N/A	None, repair made	
2	2SSO10224	Active	Burlingame Hills SMD	San Mateo County DPW	891523	1.4	Certified	Mark Chow	Principal Civil Engineer	13-DEC-23	21-DEC-23	21-DEC-23	Category 1 Spill	142 Valdeflores Drive (BHSMD)	12/08/2023 16:06	12/08/2023 16:42	12/08/2023 14:00		-		Photograph #1 - manhole from which spill originated. Photograph #2 - cleanout from which spill originated.	37.574451	-122.391232	Gravity Mainline; Lateral Clean Out (Private)			376	Photograph #1 - manhole from which spill originated. Photograph #3 - area around manhole from which spill originated. Photograph #4 - boundary of spill around the manhole. Photograph #5 - extend of spill from private lateral cleanout. Photograph #6 - extend of spill from private lateral cleanout. Photograph #7 - extent of spill from private lateral cleanout up to stormdrain.	Y	The drainage conveyance system consists of stormdrains, culverts, and drainage channels.    Photograph # 7 - stormdrain which the spill from private lateral cleanout entered.	9	0	Photograph #8 - culvert before surface water enters into smaller creek which drains into Easton Creek.  Photograph #9 - smaller creek draining into Easton Creek.	81	9	Drainage Conveyance System that discharges to surface water; Paved Surface; Surface Water; Unpaved Surface		The spill went to unpaved surface in the backyard, paved surface and drainage conveyance system and stormdrain.	Y	37.57514	-122.390623							12/08/2023 17:07	Eye ball estimation of flow rate, upstream connections, and measured volume methods were used to calculate spill volume.	The start time for the manhole spill was based on the interview and end time was based on when the blockage was cleared. The cleanout spill start time was when the crew cleared the first blockage location and the end time was when the second blockage location cleared by itself.	Root Intrusion		Gravity Mainline		Vitrified Clay		87	The spill entered the storm drain that flows the Easton Creek.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		The crew cleared the blockages using hand rods and then used chain flail to remove roots in the pipe and flushed the line twice. The crew washed the driveway and ditch and vacuum the rinse water from the storm drain.	Repaired Facilities or Replaced Defect		The sewer line was televised to locate the problem areas and the crew used pipe patches to repair the defective sections where roots were growing.	Not applicable, the sewer line has been repaired.	12/08/2023 20:20	The spill was caused by root intrusion at spots with broken pipe.	N			Easton Creek	Stream/Creek		Small creek with steep slopes and heavy vegetation.	None observed. We believe most of the spill was contained in the drainage conveyance system upstream of the creek and did not reach the creek immediately due to size of spill and the distance of travel path.	Other (specify below)	Public access impact not observed.	Not applicable	0	N	N												
5F	5SSO11309	Active	Livingston City CS	Livingston City	891524	1.1	Certified	Tony Avina	Public Works Superintendent		15-DEC-23	15-DEC-23	Monthly Category 3 Spill	Walnut and Industial Av. 	12/12/2023 09:00	12/12/2023 09:10	12/12/2023 08:45				The spill originated at failed sewer lift station on Walnut Av. and Industrial drive, the actual spill came out of the manhole two feet away from the sewer lift station. 	37.38948	-120.71034	Manhole			180	sewer water came out of sewer manhole and spilled onto street curb and gutter 	Y	storm drain that catches rain water only 	140				140	Other (specify below)	percolation pond where sewage run off settled and drained	The sewage was captured in the storm drain pond..	Y	37.38572	-120.71065							12/12/2023 09:15	kick the bucket method.	eyeball estimation of approximately a little over three 55-gallon drum knocked over. estimated about 180 gallons	Pump Station Failure - Mechanical		Pump Station - Mechanical		Concrete		40	failed sewer lift station caused sewer to spill at manhole opening	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		discharge went into dedicated storm percolation pond, all areas where sewage spilled where cleaned with bleach and washed down.	Repaired Facilities or Replaced Defect		more checks on this sewer lift station.		12/15/2023 05:45	none		none	12/15/2023 06:54														yes	modifications were made.	yes, check lift station more often.	back up pumps are on shelf for back up.	all repairs have been made.	none at this time.	not yet	continue spill response activities.	none	
4	4SSO11365	Active	Unincorporated County Area CSMD South/County Sanitation District CS	Los Angeles Cnty DPW	891528	1.2	Certified	Robert Swartz	Sr. CE	14-DEC-23	02-JAN-24	02-JAN-24	Category 1 Spill	1588-0524 (5302 Valley Ridge Avenue, Windsor Hills)	12/12/2023 14:00	12/12/2023 15:00	12/12/2023 13:52	12/12/2023 15:59	23-7611		CSMD Map Sheet No. 1588 Manhole No. 524 MMS No. 8597915 Manhole No. 524 was overflowing.	33.99419	-118.34468	Gravity Mainline; Manhole	Manhole No. 524		2125	Manhole No. 524 was overflowing onto the street.  The sewage spill entered a storm drain located at 5302 Valley Ridge Avenue.	Y	The sewage spill entered a storm drain located at 5302 Valley Ridge Avenue.	0	2125	The sewage spill entered a storm drain located at 5302 Valley Ridge Avenue, which leads to RDD 081, BI 1209 - Line C, City Drain, Unknown Drain, BI 9811 - U1 Line D, BI 9811 - U1 Line C, BI 0443 - Unit 2, BI 0443 - Unit 1, MTD 0318 (Centinela Creek), Centinela Creek Lower, and Ballona Creek. The major watershed is Santa Monica Bay. 	2125	0	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Manhole No. 524 was overflowing onto the street.  The sewage spill entered a storm drain located at 5302 Valley Ridge Avenue.	Y	33.99416	-118.34445							12/12/2023 15:20	CWEA SSCSC Manhole Gauge	The start time is obtained from the reporting party, the end time is when the crew clears the obstructions, and the overflow stops.	Debris-Rags; Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline; Manhole		Vitrified Clay		76	N/A	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow		Upon arrival, manhole no. (MH) 524 was overflowing.  We placed observant socks down to collect the wastewater. Manholes 514 to 525 were hydro-cleaned to relieve the stoppage. Rags, grease, and roots were retrieved from M/H no. 514. Afterward, the area was thoroughly cleaned with fresh water, and all required agencies were notified.	Other (specify below)	Will inspect the sewer using CCTV to determine if further action is needed.	Will inspect the sewer using CCTV to determine if further action is needed.	N/A	12/12/2023 16:00	Will inspect the sewer using CCTV to determine if further action is needed.	Y	Will inspect the sewer using CCTV to determine if further action is needed.	02/12/2024 12:00	Ballona Creek / Santa Monica Bay	Ocean; Other (specify below); Stream/Creek	Ballona Creek / Santa Monica Bay	The sewage spill entered a storm drain located at 5302 Valley Ridge Avenue, which leads to RDD 081, BI 1209 - Line C, City Drain, Unknown Drain, BI 9811 - U1 Line D, BI 9811 - U1 Line C, BI 0443 - Unit 2, BI 0443 - Unit 1, MTD 0318 (Centinela Creek), Centinela Creek Lower, and Ballona Creek. The major watershed is Santa Monica Bay. 	N/A	Other (specify below)	No impact.	Public Health	0	N	N											Will inspect the sewer using CCTV to determine if further action is needed.	
9	9SSO10654	Active	City of Lemon Grove CS	Lemon Grove City	891531	1.2	Certified	Israel Murguia	Public Works Director		21-DEC-23	21-DEC-23	Monthly Category 3 Spill	1756 El Roy Drive	11/08/2023 21:00	11/09/2023 06:30	11/08/2023 20:00				System failure occurred inside of easement manhole located in backyard of 1749 Glencoe Drive.  Spill appearance location was a private lateral cleanout located in the backyard of 1756 El Roy Drive.  	32.72358	-117.03097	Lateral Clean Out (Private)			90	Spill was contained within backyard easement.	N						0	Unpaved Surface		Spill was contained within backyard easement.	Y	32.72358	-117.03097							11/09/2023 07:45	Spill volume estimation was based on observed impacted area.	Spill start time was reported by the reporting resident.  Spill end time was noted by responding system operator once surcharge condition was relieved.	Collection System Maintenance Failure (specify below)	Ragging in backyard manhole due to liner failure	Manhole		Other (specify below)	Failure occurred inside of concrete manhole, not within sewer main.  Pipe material is N/A.	76	Spill impact was limited to backyard	N	Property Owner Notified; Restored Flow		Responding operators evaluated spill extent and boundaries and set containment barriers to protect MS4. Determined location of system failure and deployed hydro-jetter to relieve surcharged condition.  Discharge was allowed to percolate into unpaved backyard dirt.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		Have reached out to contractor to secure services to correct liner defect inside of easement manhole.  Increased maintenance frequency until corrective measure is executed.  		11/09/2023 16:00	Investigation consisted of multiple manhole inspections and deployment of CCTV camera to evaluate and determine exact location and extent of system failure.		Investigation is complete.	11/09/2023 16:00														N/A	Need to correct deficient liner condition inside of easement manhole.	Yes, adjusted schedule	Yes, planning rehabilitation.	Inspected.	Not added to CIP.	Yes	Spill response activities not modified	Investigation is complete.	
2	2SSO10113	Active	Pittsburg City CS	Pittsburg City	891536	1.1	Certified	Pedro Ramos	Public works Supervisor 		21-DEC-23	21-DEC-23	Monthly Category 3 Spill	229 W. 10th St	12/13/2023 13:39	12/13/2023 13:45	12/13/2023 13:00				Spill was coming from lower clean-out on the city side of the lateral only. 	38.02887	-121.88949	Lateral Clean Out (Public)			63	Spill came from lower clean out, went down driveway, and traveled thru gutter and flowed down to the catch basin.	Y	Spill came from lower clean out, went down driveway, and traveled in gutter to catch basin.	23				63	Drainage Conveyance System; Paved Surface		Spill came from lower clean out, went down driveway, and traveled in gutter to catch basin.										12/13/2023 14:05	The measure of volume worksheet was used to calculate the volume of spill.  	The measure of volume worksheet was used to calculate the volume of spill.  	Pipe Structural Problem/Failure - Controls	Pipe  sag in the line 	Lower Lateral		Polyvinyl Chloride (PVC)		10	contact paved surface and spill into storm drain catch basin. 	N	Cleaned Up (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Set up berm in front of catch basin to block flow. Rodded and vacuumed lateral until broke blockage. Performed washdown to catch basin, set up vactor tube in catch basin and rodded and vacuum storm main.  	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		added to city wide cleanout list to be cleaned every three months to eliminate the possibility of further backups in the line 		12/13/2023 14:41	Crew CCTV'd the lateral and found a 30 ft long sag in the pipe. The cleaning schedule have been modify to get clean every three months.		Crew CCTV'd the lateral to find the cause and found a 30 ft sag in the line.	12/13/2023 14:41														N/A	Adjust the schedule for cleaning on the city wide cleanout list every three months.	Adjust the schedule for cleaning on the city wide cleanout list every three months.	Not at this time.	inspected using CCTV inspection to find out the cause of the blockage.	N/A	We will upload the city wide cleanout list showing the affected line.	The address will be added to the City Wide Cleanouts chronic list.  	Crew CCTV'd the lateral to find the cause and found a 30 ft sag in the line.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	891539	1.3	Certified	Ameal McLaurin	Sewer Supervisor 2		15-DEC-23	15-DEC-23	Monthly Category 3 Spill	77 Hegenberger Road, Oakland Ca	12/12/2023 12:50	12/12/2023 13:15	12/12/2023 06:00				Manhole overflowing at the sidewalk Easement, and elevator shaft from the building was flooded, the water overflowed from floor drain.	37.72924	-122.20149	Inside Building or Structure; Manhole			235	Manhole overflowing at the sidewalk Easement onto unpaved sidewalk planter strip, and elevator shaft from the building was flooded, the water overflowed from floor drain.	N						216	Building or Structure; Unpaved Surface		Manhole overflowing at the sidewalk Easement onto unpaved sidewalk planter strip, and elevator shaft from the building was flooded, the water overflowed from floor drain.										12/12/2023 14:30	Calculated volumes: Unpaved planter strip: 10'L x 4'W x 0.194'D x 7.48-Gal = 58 Gallons Depth Average: 4  + 2  + 1  =7 /3 = 2.33 /12 = 0.194'  Lost unpaved planter strip soil: 10'L x 4'W x 0.194'D x 7.48-Gal x .1875=19 Elevator shaft: 8'L x 4'W x .66'D x 7.48-Gal = 158 Gallons Total spill: 58 + 19+ 158 = 235 Gallons Recovered: 158 + 58 = 216 Gallons Lost in soil: 19 Gallons.	Start time was based on witness account, the maintenance crew from building attempting to clear sewer lateral. End time was based on responding sewer crew when they restored the flow.  	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		100	Manhole overflowing at the sidewalk Easement onto unpaved sidewalk planter strip, and elevator shaft from the building was flooded, the water overflowed from floor drain.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Returned Portion of Spill to Sanitary Sewer System		Manhole overflowing at the sidewalk Easement onto unpaved sidewalk planter strip, and elevator shaft from the building was flooded, the water overflowed from floor drain. The water above the soil in planter strip and the water inside the elevator shaft were recovered. A claim packet was provided to the manager of the building to have a Restoration company to have a cleanup.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		CCTV inspection found evidence the sewer mainline was clogged with FOG and Debris-Wipes. The mainline has been place on a 3 Month High Frequency Program.		12/14/2023 14:30	CCTV inspection W.O. #1485173 found evidence the sewer mainline was clogged with FOG and Debris-Wipes.		N/A	12/14/2023 14:30														N/A	 The mainline has been place on a 3 Month High Frequency Program, W.O. #1485189	 The mainline has been place on a 3 Month High Frequency Program, W.O. #1485189	N/A	CCTV inspection W.O. #1485173 found evidence the sewer mainline was clogged with FOG and Debris-Wipes. The mainline has been place on a 3 Month High Frequency Program.	N/A	The mainline has been place on a 3 Month High Frequency Program, W.O. #1485189	The mainline has been place on a Flushing 3 Month High Frequency Program, W.O. #1485189	N/A	
5S	5SSO11007	Active	Murphys CS	Murphys SD	891540	1.6	Certified	Dan Murphy	CPO		15-DEC-23	15-DEC-23	Monthly Category 3 Spill	525 main st murphys california	12/15/2023 09:15	12/15/2023 09:25	12/15/2023 09:00				sewer spill out of mh on to asphalt road way from gravity sewer line @ 525 main st murphys ca lat:38.13767 lon:-120.46656	38.13767	-120.46656	Manhole			700	discharge to asphalt roadway and dirt parking area	N	gravity sewer main	0				700	Paved Surface		150 sq ft puddle around manhole on paved surface										12/15/2023 09:30	spill gauge and volumetric math	spill gauge and volumetric  math 	Debris-General; Debris-Rags		Gravity Mainline		Polyvinyl Chloride (PVC)		20	paved surface	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		waddles, hydro-flush, disinfection ,and rake and shovel, pump	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause		planned flushing and continued maintanance		12/15/2023 10:39	none		none	12/15/2023 10:58														none	cctv	none	10yr CIP	inspected	10 yr CIP 	none	none	none	
2	2SSO10184	Active	San Rafael SD CS	San Rafael Sanitation District	891541	1.2	Certified	Doris Toy	District Manager	15-DEC-23	04-MAR-24	04-MAR-24	Category 1 Spill	249 Mountain View	11/29/2023 07:55	11/29/2023 08:05	11/29/2023 07:53		-		Spill exited manhole located in driveway at 249 Mountain View Dr.	37.985715	-122.513138	Manhole			250	After spill exited manhole it traveled 4 feet across sidewalk and into storm drain catch basin	Y	the storm drainage pipe at the catch basin is 36  it then flows into 66  RCP pipe before it enters the Black Canyon Creek	0	0	The pipes in this area constantly have water in them year around due to springs.	250	0	Surface Water		Black Canyon Creek	Y	37.983207	-122.513616							11/29/2023 08:18	total spill run time 25 minutes times flow rate of 10 gallons per minute	District technician observed spill exiting manhole at a rate of 10 gallons per minute	Debris-Rags; Fats, Oil and Grease (FOG)	Homeowner Paul said he noticed the spill start at 8am and then immediately called the District.  Our records indicate he called the District at 7:53am so we are going with that time as the start of the spill. 	Gravity Mainline		Vitrified Clay		50	No visual impact to creek.  This area has many springs and recent rains in area had constant runoff in street, gutter and creeks.  The rains did not impact sanitary sewer nor cause the overflow.	N	Cleaned Up (specify below); Restored Flow		After restoring flow we cleaned and vactored street curb and gutter	Added Sewer to Preventive Maintenance Program		Added the downstream segment of pipe where blockage occurred to the preventative maintenance cleaning list where it will be cleaned every 6 months	The reason this draft and certification was not entered in the require time frame was due to myself catching covid.  It messed me up.  Today is my first day back in the office. 	11/29/2023 09:28	CCTV showed a sag in the pipe that we were unaware of	N			Black Canyon Creek	Stream/Creek		Small stream in Dominican neighborhood	No observed impacts to aquatic life	Other (specify below)	No public access to this creek.	Marin County Environmental Health Services	0	N	N												
2	2SSO10143	Active	Homestead Valley Sanitary Dist CS	Homestead Valley Sanitary District	891544	1.3	Certified	Bonner Beuhler	Manager		15-DEC-23	15-DEC-23	Monthly Category 3 Spill	RH 500.35	12/07/2023 11:25	12/07/2023 11:30	12/07/2023 10:30				Small spill from 6 inch rod hole on 6  HDPE sewer main. No one ever witness an overflow. Homeowner reported at 1158 hrs and district responded at 1130 hrs and saw only small amount of debris around rodhole. Spill caused by a short term backup that cleared on its own.	37.898147583008	-122.5478515625	Other (specify below)	6   rod hole on 6  HDPE sewer		50	Small amount of toilet paper at 6  cleanout and minimal evidence of flow down  unpaved surface and dirt and 6x6 stairs. Neither the homeowner nor district personnel saw an actual overflow, just a small amount of debris around cleanout cover and 6 feet down stairs/unpaved yard.	N	NA	0				0	Unpaved Surface		Spill was confined to area 6  rod hole and a bit of evidence of debris down unpaved dirt and 6x6 stairs.	N									12/07/2023 10:00	Visual estimation of volume based on area of evidence of the overflow. No one ever witnessed flow from the rod hole. Line had been cleaned on 11/16/23 as part of an every 6 month cleaning by hydroflushing. No spill volume to recover.	Based on time homeowner reported the evidence of the overflow and the amount of material from the spill. Most likely caused by a temporary blockage of the line caused by wipes or roots. Cleared quickly by itself and no evidence in downstream manholes.	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Other (specify below)	rod hole for accessing 6  HDPE gravity sewer main	Other (specify below)	HDPE	3	Small amount of toilet paper and sewer debris surrounding rod hole and about 6 feet down dirt stairs. Cleaned up material which filled about 1/6 of a garbage bag. Hosed down stairs.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Property Owner Notified		Had our maintenance contractor hydroflush our 6  HDPE pipe above and below SSO location. Cleaned up debris. Washed down area.	Adjusted Schedule/Method of Preventive Maintenance	Sewer had been replaced. Changed type of cleaning nozzle to be used during routine cleaning	Line had been added to 6 month routine cleaning. Meeting with engineer to determine possible fixes, including installation of an additional bypass line.		12/07/2023 13:00	Televised sewer line while hydroflushing  and found some evidence of grease buildup. Modified cleaning to use nozzle designed for grease rather than grit. Meeting with engineer to look at potential structural issues with pipe.		Meeting with engineer to examine potential grade issues	12/07/2023 13:01														NA	Line had been added to 6 month routine cleaning. Meeting with engineer to determine possible fixes, including installation of an additional bypass line.	Instructed maintenance contractor to use a different type of cleaning nozzle when doing the 6 month hotspot maintenance	Sewer line had been pipeburst already. Will look at additional potential remediation.	NA	Line had been replaced with HDPE	Added instruction to maintenance contractor cleaning instructions	Changed type of nozzle used in cleaning	Meeting with engineer to examine potential grade issues	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District	891547	1.4	Certified	John J. Hough	San Dist. Superintendent	15-DEC-23	27-DEC-23	27-DEC-23	Category 1 Spill	336354	12/13/2023 08:08	12/13/2023 08:41	12/13/2023 07:40	12/13/2023 14:21	23-7629		See Attached Spill Map.	38.675	121.2988	Inside Building or Structure; Lateral Clean Out (Private)		Sewer spilled from two private cleanouts and caused back up in three homes.	2352	See Attached Spill Map.	Y	See Attached Spill Map	32	0	See Attached Spill Map.	2024	2147	Building or Structure; Drainage Conveyance System that discharges to surface water; Paved Surface; Surface Water; Unpaved Surface		See Attached Spill Map 	Y	38.67486	-121.29899	38.67501	-121.29892	38.67479	-121.29907	38.67474	-121.29899	12/13/2023 09:50	See attached Volume Estimation.	See attached Volume Estimation.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		59	Spill caused sewage to backup into 3 homes.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified City of Citrus Heights. 	See attached Description of Event.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected the main line with CCTV on December 14, 2023. Based on the findings, SacSewer adjusted preventative maintenance cleaning frequency from 24 months to 6 months.	N/A	12/14/2023 07:07	See attached Description of Event.	N			Brooktree Creek	Stream/Creek		Brooktree Creek is concrete-lined creek with stagnant flow during the spill event and investigation.	No observed impacts to aquatic life.	Other (specify below)	Health warning signs were posted at the public access areas of the impacted surface water.	N/A	0	N	N												
2	2SSO10088	Active	Albany City CS	Albany City	891550	1.2	Certified	Mark Hurley	Public Works Director/City Engineer		21-DEC-23	21-DEC-23	Monthly Category 3 Spill	935 Key Route Blvd. Albany CA 94706	11/08/2023 10:25	11/08/2023 10:45	11/06/2023 08:00				The blockage that caused the spill occurred along a mainline sewer located in an easement between Pomona and Key Route. The blockage was located approx. 25 south of 935 Key Route. The appearance point was a cleanout in the crawl space at 935 Key Route. The spill exited the crawl space through an access hatch and ran down the driveway to the curb/gutter. Water from the SSO pooled in front of 935 to 945 Key Route, approximately 135 feet. 	37.888941	-122.292219	Other (specify below)	Under Building / Crawl Space		142	The boundaries of the spill are detailed on Page 6 of the attached Spill Crew Report.  The boundary includes an area within the crawl space (A1), the driveway (A2, A3), the sidewalk (A4) and the gutter (A5). Photographs of the driveway, sidewalk and gutter are attached.  	N						60	Other (specify below); Paved Surface; Street/Curb and Gutter (2 3)	Under House / Craw Space	Dirt and plastic tarp at craw space under building,  concrete driveway, sidewalk, curb and gutter.	Y	37.888941	-122.292219	37.888878	-122.292362	37.888827	-122.292384	37.888543	-122.292287	11/08/2023 11:10	Spill volume calculations are based on the shape and dimensions of the wetted area and approximate depth.	The homeowner provided information to establish the spill start time. City cleared the blockage in the main line which established the end time.	Fats, Oil and Grease (FOG)		Gravity Mainline		Other (specify below)	HDPE	17	Spilled under the building on dirt and plastic tarp, then onto the concrete driveway, the sidewalk and the cur/gutter.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow		Crew cleared mainline blockage to restored the flow.  Standing water within the crawl space was removed using a portable sump pump. The driveway, sidewalk and gutter was cleaned using the City's combination vacuum truck.  A restoration contractor was engaged to clean-up and sanitize the craw space.  The work included extracting the any remaining standing water, applying odor control and anti-microbial treatments and setting up equipment to dry crawl space area and scrub the air inside the house.  	Adjusted Schedule/Method of Preventive Maintenance		The underlying cause of this spill is FOG.  This line is already a hot spot and is cleaned annually.  We have increased the cleaning cycle to quarterly.  We are also engaging with EBMUD to send FOG information to properties tributary to the SSO through the regional FOG Program.		12/04/2023 13:30	Using the City's system maps, the Crew identified the most accessible maintenance hole down stream of the blockage. The Crew then began flushing the line upstream until hitting the blockage and then breaking through it.  As part of the cleaning process, a mesh basket is inserted into outlet of the maintenance hole to catch the solids/debris causing the blockage, which in this case was grease.  		N/A	11/08/2023 16:19														N/A	Increase cleaning cycle as described in 20.b.	Increased cleaning cycle as described in 20.b.	N/A	N/A	N/A	N/A	N/A	N/A	
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	891551	1.3	Certified	Daniel Whitlock	Manager	15-DEC-23	19-FEB-24	19-FEB-24	Category 2 Spill	400 Gold Mine Dr. San Francisco, CA	12/12/2023 14:25	12/12/2023 16:00	11/28/2023 12:00	12/12/2023 22:20	23-7616		Easement in backyard caused overflow of dead end manhole. 	37.73923877	-122.43867534	Gravity Mainline; Manhole			1764	Spill was within an easement. Spill occurred from the manhole in the backyard of 400 Gold Mine. 	N						0	Unpaved Surface		Backyard of 400 Gold Mine Rd. 37.73923877,-122.43867534 	Y	37.73923877	-122.43867534							12/13/2023 09:50	42 gallons of water per person per day on average in SF. 2 residents living in household. It was estimated the spill lasted 3 weeks.  42gal per day x 2 people x 21 days = 1764 gallons	42 gallons of water per person per day on average in SF. 2 residents living in household. It was estimated the spill lasted 3 weeks.  42gal per day x 2 people x 21 days = 1764 gallons	Root Intrusion		Gravity Mainline		Vitrified Clay		64	All spills contained in the backyard. Spill went into the soil.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow	Cleaned up visible debris. And contained spill to the backyard. 	Cleaned up visible debris. Responded following morning on 12/13/2023 and restored flow with jetter. Relieved at 9:50. CCTV found root intrusion in the main line.  WO 8915328 for repair was completed on 2/1/2024.	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect		Restored flow with jetter on 12/13/2023. CCTV found root intrusion. WO 8915328 for repaired section where root intrusion was found.	12/12/23 notified of spill 12/13/23 Spill relieved 12/13/23 CCTV inspection 2/1/24 Completion of repair	12/13/2023 09:50	Main sewer about 6-7� deep. The repair is at 5� from upstream manhole. Big root ball caused broken pipe.	N												N													
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	891555	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		02-APR-24	02-APR-24	Monthly Category 3 Spill	13232 West Ventura Boulevard	12/15/2023 10:16	12/15/2023 10:33	12/15/2023 10:16				The initial crew arrived at 10:33 A.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.  	34.146282	-118.421283	Manhole			65	Sanitary Sewer Overflow.	N	None.	0				65	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	34.146282     118.421283	Y	34.146282	-118.421283							12/15/2023 10:42	Spill flowrate and volume determination based on flowout pickhole or opening 	Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening1.5inches Flowrate per pickole/opening (gpm)2gpm # of pickholes/openings1 Total flowrate (gpm)2gpm Duration of spill (minutes)26minutes Total flow (gallons)65gallons 	Debris-General		Gravity Mainline		Vitrified Clay		93	It was estimated that approximately 65 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		It was estimated that approximately 65 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.	Inspected Sewer Using CCTV to Determine Cause		This Pipeline Will Be Placed On A Semi-Annual Maintenance Schedule, An Emergency Sewer Contractor Will Make Repairs To The Pipeline.		12/15/2023 10:42	On Friday, December 15, 2023, at 10:16 A.M., Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 13232 West Ventura Boulevard (TG 562-D5). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 10:42 AM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.		None At This time.	12/15/2023 10:42														None At This Time.	This Pipeline Will Be Placed On A Semi-Annual Maintenance Schedule, An Emergency Sewer Contractor Will Make Repairs To The Pipeline.	This Pipeline Will Be Placed On A Semi-Annual Maintenance Schedule, An Emergency Sewer Contractor Will Make Repairs To The Pipeline.	This Pipeline Will Be Placed On A Semi-Annual Maintenance Schedule, An Emergency Sewer Contractor Will Make Repairs To The Pipeline.	This Pipeline Will Be Placed On A Semi-Annual Maintenance Schedule, An Emergency Sewer Contractor Will Make Repairs To The Pipeline.	None At This Time.	This Pipeline Will Be Placed On A Semi-Annual Maintenance Schedule, An Emergency Sewer Contractor Will Make Repairs To The Pipeline.	On Friday, December 15, 2023, at 10:16 A.M., Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 13232 West Ventura Boulevard (TG 562-D5). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 10:42 AM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.  It was estimated that approximately 65 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system. 	None At This time.	
8	8SSO10636	Active	Colton Water Reclamation Facility CS	Colton City	891556	1.3	Work In Progress						Monthly Category 3 Spill	hanna st &n 6th st	12/17/2023 09:15	12/17/2023 09:40	12/17/2023 08:50				Intersection of Hanna st. & 6th st. MANHOLE	36.77826	-119.41793	Gravity Mainline; Manhole			50	SPILL WAS DUE TO GREASE. Spill was contained in unpaved area.	N						0	Unpaved Surface		Spill was contained next to rail road tracks. (Gravel and dirt)		36.77826	-119.41793							12/17/2023 09:50	Math formula	Visual and math	Fats, Oil and Grease (FOG)		Gravity Mainline; Manhole		Vitrified Clay		60	insignificant	N	Cleaned Up (specify below); Other (specify below); Restored Flow	spill seeped into ground	Used combination vactor truck to relieve sso.	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		will monitor and clean 		12/17/2023 09:50	none		no	12/18/2023 15:00														none	monitor and cleaning schedule adjustment	yes	no	yes	no	no	no	no	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	891562	1.5	Certified	Ameal McLaurin	Sewer Supervisor 2		19-DEC-23	19-DEC-23	Monthly Category 3 Spill	65 Eastwood Ct, Oakland Ca	12/13/2023 08:41	12/13/2023 09:00	12/13/2023 06:00				Sewage was seeping through the ground in back yard.	37.83515	-122.18558	Other (specify below)	Sewage was seeping through the ground in back yard.	1	210	Sewage was seeping through the ground in back yard.	N						0	Unpaved Surface		Sewage was seeping through the ground in back yard.										12/13/2023 14:30	Calculated volumes: 20'L x 10'W x.5'D x 7.48-Gal x .1875 = 210 Gallons	Start time was noted by witness account the property owner that reported the spill. End time was noted when responding sewer crew restored the flow.	Debris-wipes/Non-disposables; Root Intrusion		Gravity Mainline		Vitrified Clay		90	Sewage was seeping through the ground in back yard, the sewage soaked into the soil.	N	Property Owner Notified; Restored Flow	Claim packet provided to resident.	Claim packet provided to resident to have a Restoration company to clean the back yard.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Mainline has been added to a 3 Month High Preventative Maintenance Program.		12/13/2023 19:30	CCTV inspection found root infiltration to be cause of the overflow.		More CCTV is included on the investigation.	12/22/2023 13:40														N/A	Mainline has been added to a 3 Month High Preventative Maintenance Program.	Mainline has been added to a 3 Month High Preventative Maintenance Program.	N/A	More CCTV is included on the investigation.	N/a	Mainline has been added to a 3 Month High Preventative Maintenance Program W.O. # 1485940.	Mainline has been added to a 3 Month Power Rodding High Preventative Maintenance Program W.O. # 1485940.	More CCTV is included on the investigation.	
2	2SSO10109	Active	Concord City CS	Concord City	891563	1.4	Certified	Pernise Seumanutusa	Public Works Supervisor	18-DEC-23	18-DEC-23	18-DEC-23	Category 1 Spill	Ygnacio Woods Ct	12/17/2023 20:51	12/17/2023 21:31	12/17/2023 20:51	12/17/2023 22:04	23-7704		8  vcp sewer segment K15-325-K15-326 plugged with flushable wipes causing sewage to flow from manhole K15-325.	37.94572	-122.01439	Manhole			1120	Spilled from manhole lid with single pick hole and flowed across paved street surface to curb/gutter a total of approximately 75 feet.  I had rained lightly earlier in the evening and street surface was wet, but it was not raining at time of spill.	Y	Storm drain catch basin which drained almost directly into Pine Creek, which was dry at the time of the spill.	0	0	Storm drain flowed a very short distance, maybe 5-10', then discharged into pine creek dry creek bed.	1120	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		Pine Creek	N									12/17/2023 21:47	Eye ball method , volume estimation	Eye ball method , volume estimation	Debris-Rags		Gravity Mainline		Vitrified Clay		50	n/a	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow		Cleaned storm drains and curb and gutters. 	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Added to higher frequency cleaning schedule	Annual to semi annual	12/18/2023 14:40	Rags and flushable wipes	N			Pine Creek	Other (specify below)	Creek	Dried up creek	n/a	Restricted Public Access		City of Concord	0	N	N												
2	2SSO10224	Active	Burlingame Hills SMD	San Mateo County DPW	891576	1.2	Certified	Mark Chow	Principal Civil Engineer	19-DEC-23	20-DEC-23	20-DEC-23	Category 1 Spill	135 Valdeflores Dr (BHSMD)	12/05/2023 19:10	12/05/2023 19:49	12/05/2023 16:55	12/05/2023 21:42	23-7474		The spill originated from a toilet in the house and was caused by PG&E installing a power pole over the sewer main and damaged the pipe. Appearance Point.JPG 1-cleanout.JPG	37.575127	-122.390831	Inside Building or Structure			1071	The spill was in a building, unpaved surface, paved surface, and storm drain. 3-spill in room.JPG 4-depth of spill.JPG 5-spill outside.JPG 6-spill inside.JPG 	Y	The spill went into a drainage conveyance system that discharged into the ground. Further investigation found that the flow from the outlet would drain downhill to a culvert which flows to Easton Creek. 2-spill to drain.JPG	0	550	The spill went into a drainage conveyance system that discharged into the ground. Further investigation found that the flow from the outlet would drain downhill to a culvert which flows to Easton Creek. 7-surface.JPG	550	511	Building or Structure; Drainage Conveyance System that discharges to surface water; Paved Surface; Surface Water; Unpaved Surface		The spill went into the building. Then it overflowed outside of the building to paved surface, unpaved surface and storm drain.	Y	37.57514	-122.390623							12/05/2023 20:32	The volume of the spill contained in the room and the estimated observed spill rate and duration of the active flow were used to calculate the total spill volume.	The residents were not home when the spill started and the spill was initially all contained in the room. The resident notified us when the spill restarted and that start time was used for the volume calculation. The end time was when the crew cleared the blockage. The crew also noticed the second start time and end time when they flushed the line. This time was used for the volume calculation.	Damage by Others Not Related to Collection System Construction/Maintenance	PG&E installed a pole over the sewer main and damaged the pipe.	Gravity Mainline		Vitrified Clay		87	The spill entered the storm drain that flows to Easton Creek.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		The restoration company cleaned up the house and driveway area. Our sewer crew cleaned up the dirt area in the easement.	Repaired Facilities or Replaced Defect		The cause of the spill was because PG&E installed a pole over the sewer main and damaged the pipe. The sewer main was marked per USA requirement. PG&E removed the pole, repaired the damaged section of pipe and relocated their pole.	Not applicable, the sewer line has been repaired.	12/06/2023 15:00	The cause of the spill was because PG&E installed a pole over the sewer main and damaged the pipe. The sewer main was marked per USA requirement. PG&E removed the pole, repaired the damaged section of pipe and relocated their pole.	N			Easton Creek	Stream/Creek		Creek surroundings are heavily vegetated and steep, not easily accessible.	None observed. We believe most of the spill was contained in the drainage conveyance system upstream of the creek and did not reach the creek immediately due to size of spill and the distance of travel path.	Other (specify below)	Creek surroundings are heavily vegetated and steep, not easily accessible  by public	Not applicable	0	N	N												
2	2SSO10189	Active	Sausalito CS	Sausalito-Marin City San District	891583	1.1	Certified	Jeffrey Kingston	General Manager		20-DEC-23	20-DEC-23	Monthly Category 3 Spill	28 Buckelew	11/30/2023 14:12	11/30/2023 14:25	11/29/2023 14:12				Manhole found on hillside behind 28 Buckelew, not located on any district records and not shown on collection system map. manhole and leak found on 11/29 by local plumber late afternoon (plumber did not have a specific time) 24 hours spill conservatively assumed, 3 homes maximum discharge to manhole @ 180 gallons per EDU. Once onsite, crew used a portable electric pump to discharge the water to the city of Sausalito vactor to empty manhole and stop the leak and clean the line segment. A follow up on 12/13 was to clean, tv, and locate the direction of flow from this manhole. A second manhole unmapped was found.	37.874083	-122.516367	Manhole			540	Wet dirt around manhole, wet soil was removed and disposed of, dry soil spread back to fill in area. Wet soil traveled 25 feet from manhole.	N						0	Unpaved Surface		Wet soil in a small area around manhole, wet soil seen as a narrow pathway 25 feet from manhole.										11/30/2023 15:32	Maximum 3 EDU attached to manhole, 24 our spill assumed conservatively, 540 gallons total estimated at 180 gallons per EDU.	Start time estimate based on local plumber who stated late afternoon on 11/29.	Root Intrusion		Lower Lateral		Vitrified Clay		60	Impacted soil surrounding manhole, wet soil removed.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow	Removed affected surface soil, spread new soil.	Once on site crew used an electric pump to discharge water from the manhole to a vactor. This stopped any new water from spilling out of the manhole. Cleanup involved removing soil, spreading new dry soil around manhole and short distance away.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		2 new manholes and 2 new segments of 6  gravity line added to sewer map and cleaning schedule. Evaluating removal and re-routing of gravity line for easier maintenance. A follow up in 4 months to camera and inspect line segment.		12/13/2023 14:22	Spill from manhole that services 3 EDU's maximum, manhole and line segment not mapped or documented located on hillside behind 28 Buckelew. Follow up cleaning and tv on 12/13 found major root intrusion into old clay pipe. a second manhole on hillside was found with a segment of cast iron pipe that connected to the collection system in the street. 2 new manholes and 2 new segments of gravity line will be added to the collection system map, follow up to determine possible relocation off hillside.		investigating the possibility of relocating the discharge point of the manhole from the hillside to the street to improve accessibility. 	12/13/2023 14:22														No enforcement but County of Marin was notified of the incident at same time we received the call of a spill.	re-location / replacement, 4 month follow up inspection.	added to collection system map for maintenance	Assessing replacement or possible relocation.	inspected and cleaned.	Possible line replacement needed.	Manhole and line segment added to maps for preventative maintenance.	No change to initial response.	investigating the possibility of relocating the discharge point of the manhole from the hillside to the street to improve accessibility. 	
1	1SSO11441	Active	Brooktrails Township CS	Brooktrails Township Community Services District	891592	1.2	Certified	Thomas Jones	Superintendent	20-DEC-23	20-DEC-23	20-DEC-23	Category 1 Spill	Poppy dr	12/20/2023 07:45	12/20/2023 07:50	12/20/2023 07:30		-		Manhole 	39.44913	-123.39794	Manhole		None	300	Paved surface that reached a culvert.	Y	Metal culvert	0	0	Culvert drains on to land near stream	200	100	Paved Surface		Manhole overflow	Y	39.44912	-123.39795							12/20/2023 08:05	Amount of volume coming out of manhole	Size of hole and area covered	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		40	There is no impact observed	Y	Cleaned Up (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		When report came in we immediately responded to the site and cleared the blockage that was causing the overflow which the. Returned the sewer to normal and stopped the discharge 	Adjusted Schedule/Method of Preventive Maintenance		Will do preventative maintenance more often and before any storm events	None	12/20/2023 11:00	Found a blockage downstream from discharge of sewer that we cleared and returned sewer to its normal state of flow. 	N		12/20/2023 12:05	Willits creek	Other (specify below)	Creek	Lake Emily water shed	None	Other (specify below)	None	None	0	N	N												
3	3SSO11469	Active	City of Santa Maria CS	City of Santa Maria	891593	1.2	Certified	Russ Newman	Wastewater Supervisor		21-DEC-23	21-DEC-23	Monthly Category 3 Spill	219 W. Betteravia	12/18/2023 13:39	12/18/2023 13:50	12/18/2023 13:12				End of line cleanout at 219 W. Betteravia, Santa Maria	34.92048	-120.44203	Other Sewer System Structure	End of line cleanout at 219 W. Betteravia		174	Gutter from 219 W. Betteravia to gutter at 545 W. Betteravia.	N		0				174	Paved Surface; Street/Curb and Gutter (2 3)		Gutter at 545 W. Betteravia 	Y	34.92048	-120.44285							12/18/2023 14:10	Eyeball estimate of flow rate, average flow width and depth in gutter, multiplied by length of stream in gutter.	Eyeball estimate of flow rate, estimate of average flow width and depth in gutter.	Debris-General; Debris-Rags; Debris-wipes/Non-disposables; Inappropriate Discharge to Collection System; Vandalism (specify below)	Plastic, rubber, paper, tile, towels, gas can, coat hanger illegally dumped in sewer manhole at 202 W. Betteravia.	Gravity Mainline; Manhole		Vitrified Clay		43	Street gutter contained flow from spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Spill was contained in gutter.  Photos were taken, blockage was cleared, spill was vacuumed up with truck gutter was bleached, washed and water was vacuumed up.  	Other (specify below)	Property occupant was notified that sewer manhole shall not be used to dispose of trash and other items.	Affected sewer lines were re cleaned on 12/19/23.		12/18/2023 15:00	Spill caused by illegal dumping of trash into sewer manhole downstream of where sewer spill appeared.  Items such as plastic, rubber, and a coat hanger were removed from sewer line the day the spill occurred.  Gas can and additional trash were found to be deposited in manhole downstream of spill occurrence point on day after spill occurred.  		Investigation is complete.  Cause was illegal dumping of trash and large items into public manhole on private property at 202 W. Betteravia, downstream of spill occurrence point.  	12/18/2023 15:00														N/A	Sewer manhole where dumping occurred will be regularly checked for debris dumping.	N/A	N/A	N/A	N/A	N/A	N/A	Investigation is complete.  Cause was illegal dumping of trash and large items into public manhole on private property at 202 W. Betteravia, downstream of spill occurrence point.  	
2	2SSO10163	Active	Oro Loma Sd CS	Oro Loma Sanitary District	891594	1.3	Amended	Christopher Brown	Collection System Manager	20-DEC-23	26-DEC-23	26-DEC-23	Category 1 Spill	16514 Ehle Street	12/16/2023 19:03	12/16/2023 19:24	12/16/2023 18:30	12/16/2023 20:56	23-7691		A piece of construction debris from an unknown source upstream from the failure point lodged in the sewer main creating a partial blockage which began holding rags and paper. This led to the M/H near 16514 Ehle Street to surcharge and periodically spill.  Crews determined the spill rate to be 2.5 gallons per minute by using comparison photos carried in the spill response field packets carried in all vehicles. This was multiplied by the duration of 146 minutes for a total of 315 gallons.	37.6984	-122.10486	Manhole			315	The spill traveled to the curb and gutter adjacent to the appearance point and traveled 136' downhill to the nearest storm drain inlet. Sand bags and mats were placed at the drain inlet to help minimize the flow into the storm drain. The majority of the spill had already entered the storm drain upon arrival. Crews jetted and vacuumed the storm drain piping and catch basins until the piping entered a 42  storm pipe that had existing flow. At this point crews were not able to get ahead of the spill for containment purposes. Crews determined that only 30 gallons minus washdown water was recovered.	Y	The conveyance system consisted of 12  to 24   pipe and catch basins leading to a 42  pipe 640' away. The 42  pipe carries flow all year even during dry periods due to its location on the hill. Crews returned the following day to Hydro jet, washdown and vacuum the 640' of storm drain piping and drain inlets that were accessible.	30	285	The spill ultimately worked its way through the storm drain system to the flood control channel near Ashland Avenue and E 14th Street in San Leandro.	285	30	Drainage Conveyance System		The spill traveled to the curb and gutter adjacent to the appearance point and traveled 136' downhill to the nearest storm drain inlet. Sand bags and mats were placed at the drain inlet to help minimize the flow into the storm drain. The majority of the spill had already entered the storm drain upon arrival. Crews jetted and vacuumed the storm drain piping and catch basins until the piping entered a 42  storm pipe that had existing flow. At this point crews were not able to get ahead of the spill for containment purposes. Crews determined that only 30 gallons minus washdown water was recovered.	Y	37.69729	-122.10682							12/16/2023 20:43	A piece of construction debris from an unknown source upstream from the failure point lodged in the sewer main creating a partial blockage which began holding rags and paper. This led to the M/H near 16514 Ehle Street to surcharge and periodically spill.  Crews determined the spill rate to be 2.5 gallons per minute by using comparison photos carried in the spill response field packets carried in all vehicles. This was multiplied by the spill duration of 146 minutes for a total of 315 gallons. It was estimated that only 30 gallons was recovered. This was estimated based on the wetted area of the curb, gutter, and storm drain inlets.	A resident stated that the spill was observed at 18:30 as they were walking to their car, while a different resident stated it was dry at 15:00.  18:30 was selected as the start time as no other proof was available. The end time of 20:35 was determined when the responding crew broke the plug and ended the spill.	Other (specify below)	A small piece of mortar or concrete from an unidentifiable source upstream.	Gravity Mainline		Vitrified Clay		71	The spill traveled to the curb and gutter adjacent to the appearance point and traveled 136' downhill to the nearest storm drain inlet. Sand bags and mats were placed at the drain inlet to help minimize the flow into the storm drain. The majority of the spill had already entered the storm drain upon arrival. Crews jetted and vacuumed the storm drain piping and catch basins until the piping entered a 42  storm pipe that had existing flow. At this point crews were not able to get ahead of the spill for containment purposes. Crews determined that only 30 gallons minus washdown water was recovered.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Upon arrival and verification of the spill, sand bags, absorbent mats, and pigs were placed at the nearby drain inlet to block additional flow from entering the storm drain inlet. A Hydro Jetter and Vacuum truck arrived shortly after. The Hydro Jetter set up to relieve the stoppage while the vacuum truck set up and began vacuuming at the near by drain inlet. The Hydro Jetter relieved the stoppage while the vacuum truck recovered the remaining spill and washdown water before it entered the drain inlet.  Crews returned the following day to Hydro jet, washdown and vacuum the 640' of storm drain piping and drain inlets that were accessible.  	Inspected Sewer Using CCTV to Determine Cause		There are no observed defects at the failure location. There is no recommended action scheduled at this time.	There are no observed defects at the failure location. There is no recommended action scheduled at this time.	12/18/2023 10:30	A small piece of mortar or concrete from an unknown source upstream of the failure point caused paper/rags to accumulate behind it causing a partial blockage that led to the spill. The surrounding upstream were televised in an effort to determine the source. The upstream manhole were visually inspected to determine if the debris had come from a district asset. Permit records for lateral repairs were reviewed to see if there had been any recent work had been performed on or near the sewer mains. All efforts were inconclusive in determining where the debris may have came from.	N			Alameda County Flood Control Channel	Other (specify below)	The spill entered the concrete flood control channel which runs through San Leandro to San Francisco Bay	The spill entered the concrete flood control channel which runs through San Leandro to San Francisco Bay.	There were no observed impacts on aquatic life.	Other (specify below)	There were no closures or restrictions. 	There were no closures or restrictions.	0	N	N												
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	891596	1.2	Certified	Daniel Whitlock	Manager	20-DEC-23	02-JAN-24	02-JAN-24	Category 2 Spill	17th and Folsom	12/18/2023 13:50	12/18/2023 15:05	12/18/2023 13:50		-		System surcharged due to excessive rain and came out of 2 catch basins and 3 laterals on the southwest corner of 17th and Folsom. When the rain stopped all water returned back into the system	37.76266	-122.41511	Combined Sewer Drain Inlet. (Combined Collection System Only); Lateral Clean Out (Private)			50500	Water was observed along the west side of the street, gutter, and sidewalk from 2140 Folsom St. to the corner of 17th and Folsom.	N						1120	Drainage Conveyance System; Other (specify below)	All portions of the spill were returned back into the combined sewer system. 	All portions of the spill were returned back into the combined sewer system. Water was observed along the west side of the street, gutter, and sidewalk from 2140 Folsom St. to the corner of 17th and Folsom.	Y	37.76366	-122.41526							12/18/2023 14:20	SFPUC H&H Model Simulation	SFPUC H&H Model Simulation	Surcharged Pipe (Combined Collection System Only)		Other (specify below)	No failure occurred.  The system surcharged due to excessive rain. 	Concrete		77	Flooding along the westside of Folsom St between 18th St and 17th St. along the sidewalk, gutter, and street. Once the rain subsided the flooding subsided. 	Y	Cleaned Up (specify below); Other Enforcement Agency Notified; Property Owner Notified; Returned All Spill to Sanitary Sewer System; Returned Portion of Spill to Sanitary Sewer System		Water was observed along the westside of Folsom St between 18th St and 17th St. along the sidewalk, gutter, and street. Once the rain subsided the flooding subsided. Crews responded and began cleaning street and sidewalk utilizing a Vacon and high pressure water.  	Plan Rehabilitation or Replacement of Sewer		A project is in the planning phases for increasing capacity of surrounding sewers to help mitigate flooding in the area during heavy rain.	NA	12/18/2023 17:35	NA	N												N													
8	8SSO10560	Active	Riverside City CS	Riverside City	891597	1.6	Certified	Kevin Street	Wastewater Operations Manager	20-DEC-23	08-JAN-24	08-JAN-24	Category 2 Spill	City Main	12/20/2023 18:25	12/20/2023 19:00	12/17/2023 15:32		-		Manhole in open field with stolen lid. Blockage caused by palm fronds and debris dumped into manhole by unknown parties. Vandalism.	33.89458	117.470001	Manhole			39738	Spill was contained in a dirt, vacant field.	N						0	Unpaved Surface		Spilled and contained in vacant field.  See Attachment for detailed GPS outline of spill area.	Y	33.89463	-117.47004							12/17/2023 20:32	Video of spill rate and GPM estimate multiplied by duration of spill. 3/8  water height above 24  manhole = 111 GPM for 358 minutes. After the fact interview with party referring spill to the City to narrow down a potential and conservative start time based on 3rd party observations and statements.	Video, verbal statements of witnesses	Vandalism (specify below)	Manhole cover was found approximately 20ft from manhole. Numerous large objects found in manhole including fence boards, rubber hoses, water cooler, and palm trees fronds. Responding technicians noted piles of palm fronds and other debris next to manhole which appeared to be staged further vandalism	Gravity Mainline; Manhole		Vitrified Clay		60	Flooding of soil around the manhole. Spill soaked into some areas.  Field appeared to have recently been disced for weed abatement. Because of the soil having been recently turned, there was a significant amount of soil surface area and height to impound the spill and trap solid debris coming out of the manhole.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below)	Spill was contained entirely onsite.  See Attachment for an accurate spill boundary map. Contaminated soil and surface solids and debris were scraped and raked from the site and transported back to the Wastewater Treatment plant for drying and future disposal.	Dirt on field and lower elevation around the manhole served as a sump in which the spill was contained. Responding technicians used high pressure water from the next downstream manhole to clear blockage. 	Other (specify below)	Plan to replace manhole covers with locking covers to prevent vandalism and unauthorized access.  	Plan to replace manhole covers with locking covers to prevent vandalism and unauthorized access.  	Within 30 days and contingent upon lead time for covers. 	12/18/2023 13:00	City received call of spill from a neighboring agency water troubleshooter. City dispatched a technician to the scene who confirmed an overflowing manhole into an empty field. Technician confirmed the spill was contained onsite and dispatched a vacuum truck to clear the blockage. Initial City responder began collecting photographs and other spill related information to support spill report while awaiting arrival of vactor unit.  Responding technical surveyed spill perimeter and confirmed spill did not have a potential to discharge off the property. An initial spill rate and volume was calculated based on arriving technician photos. The following day, Collections supervision conducted a phone interview with the sister agency staff who discovered the spill. This individual was able to provide a better estimate of spill details and a video that supported a reduction in spill rate, but an increase in spill duration, overall resulting in a slightly higher volume than initial estimate.	N												N													
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	891598	1.1	Certified	Daniel Whitlock	Manager		11-JAN-24	11-JAN-24	Monthly Category 3 Spill	221 Desmond St	12/18/2023 09:25	12/18/2023 10:30	12/18/2023 08:25				Spill originated @ 221 Desmond street Lateral clean out . 37.70887613800837, -122.40634425487117( Other locations were caused while cleaning line see Spill explanation field. 	37.70889	-122.40633	Lateral Clean Out (Private); Manhole		While cleaning line with Jetter other spills occured, manhole (37.70839/-12240662) lateral @ address 250 ( 37.70850/-122.40660) Adress 259 ( 37.70850 / -12240652) Address 256 ( 37.70851/-122.40663) 	315	Spill originated @ 221 Desmond street ( L-279171 trickled ( Small amount) to corner. When relieving the main sewer the vacon created three other spill locations . Manhole N-18679 , Lateral L-279164 , Lateral L-279163 	N						225	Paved Surface; Street/Curb and Gutter (2 3)	Grease Blockage removed at Approx 275' from upstream manhole Asset p-94927.	Initial spill @221 Desmond was very small in nature ( barely a trickle ) and only showed evidence of a short distance down the street. Cleaning with Vacon released approx 150 gallons of water from the manhole and lateral cleanouts @ 250 , 257 & 256 .  All flow ran down to a combined catch basin 37.70914 / -12240635	Y	37.70914	-122.40634	37.70841	-122.40663	37.70848	-122.40663	37.70848	-122.40653	12/18/2023 11:25	Eyeball Estimate and duration and flow for lateral	Eyeball estimate for manhole ( approx 150 Gals)  / lateral clean out( X3 @ 25 gallons approx 75 gals)  Related to vacon induced spill. Eyeball estimate for Initial lateral 1 gallon every two mins . 3 hrs run time ( 3 Hrs at 30 GPH = 90 gals) 	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		83	Spill created by vacon traveled down the street and ended in a combined catch basin on the corner. 	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	Spill happened in between a rain event and rain began once main sewer was relieved ( See pics) 	Washed down all areas of the spill and cleaned out catch basins. 	Other (specify below)	Follow up CCTV work order created. 	Adding to FOG program 		12/18/2023 13:45	Dependant on CCTV results . Will be added to FOG program 		CCTV condition assessment 	01/31/2024 10:59														NA	Condition assessment dependant . 	yes FOG program 	No 	No 	NO 	NA	NA	CCTV condition assessment 	
4	4SSO10388	Active	Glendale City CS	Glendale City	891599	1.2	Certified	Dan Hardgrove	Assistant Director of Public Works	20-DEC-23	26-DEC-23	26-DEC-23	Category 1 Spill	300 N. Kenwood Street	12/17/2023 11:04	12/17/2023 11:44	12/17/2023 10:44	12/17/2023 13:30	23-7700		Overflowing manhole 030057 located at intersection of Kenwood Street & California Ave.	34.14994	-118.25138	Manhole			3640	Overflowing manhole 030057 located at intersection of Kenwood Street & California Ave. Spill followed gutter to two (2) separate catch basins, one (1) located at Kenwood St. & California Ave. the second at California Ave. & Louise St.	Y	BELSON DRAIN - UNIT 2 & 3 Layer: Drains Drawing No: 931-D2 Asset (MMS) No: F01208926 Maintained By: LACFCD Date Built: 1/1/1994 Size: 33 Material: Reinforced Concrete Pipe (RCP) Station Name: BELSON DRAIN - UNIT 2 & 3	0	3640	See attached map of storm drain conveyance system, enrollee will attempt to get photograph of same at certification if safe.	4200	0	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water		Storm drain conveyance system that received the spill discharges to the Los Angeles River at the Dover Street outfall in the City of Los Angeles.	Y	34.12079	-118.26949							12/17/2023 11:40	See 121723 CAT 1 Spill Intersection of California Ave. and Kenwood St._Explain Estimate attached.	See 121723 CAT 1 Spill Intersection of California Ave. and Kenwood St._Explain Estimate attached.	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		97	Unknown contamination of the Los Angeles River.	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow	LA County Health Department notified at 11:50 on 12/17/23.	Streets were washed-down and sanitized and all wash-up water was recovered.	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Possible increased frequency of preventive maintenance based on circumstances-pending review. Possible relocation of an existing SMART Cover based on fact that this is a repeat of the events of 9/22/22. CIWQS Event No. 883424	Possible increased frequency of preventive maintenance based on circumstances-pending review. Possible relocation of an existing SMART Cover based on fact that this is a repeat of the events of 9/22/22. CIWQS Event No. 883424	Review at next Trouble Spot Review scheduled for Wednesday January 17, 2024 at 7:15 AM	12/19/2023 08:11	Roots, grease and wipes were evident in the flush water tailings at stoppage relief.	N			Los Angeles River	River		Los Angeles River at the Glendale Narrows	No observations made. Los Angeles River access restricted at this location.	Other (specify below)	Los Angeles River access restricted at this location.	Army Corps of Engineers. Access to channel is normally restricted.	0	N	N												
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	891600	1.4	Certified	Daniel Whitlock	Manager	20-DEC-23	02-JAN-24	02-JAN-24	Category 2 Spill	Alemany and Crescent	12/18/2023 13:46	12/18/2023 14:25	12/18/2023 13:46		-		System / Sensor alarm for Sewage cresting manhole structure . Rain surge caused system capacity to be reached and assumed spill from 7 manholes from 1:46 pm - 2:15 pm 	37.72302	-122.43783	Manhole			21800	flooded onto street and eventually made it into combination catch basin . Extent of the spill was from Alemany st @ Folsom Street to Alemany and Crescent ( Farmers market area ) 	N						21800	Other (specify below); Paved Surface; Street/Curb and Gutter (2 3)	All portions of the spill were returned back into the combined sewer system.	Traveled from Folsom and Alemany to Alemany in front of farmers market ( See pics) 	Y	37.73334	-122.41381	37.73433	-122.41168	37.73512	-122.41036	37.7361	-122.40923	12/18/2023 14:15	SFPUC H&H Model	SFPUC H&H Model	Surcharged Pipe (Combined Collection System Only)		Other (specify below)	No Failure Rainfall exceeded capacity 	Other (specify below)	No Failure Rainfall exceeded capacity 	84	Impact of Spill ranged from Folsom and Alemany down the road to Alemany in front of the farmers market by 101 Freeway .	Y	Cleaned Up (specify below); Other Enforcement Agency Notified; Returned All Spill to Sanitary Sewer System		Posted Signage and washed down area using a Vacon and high pressure water. 	Plan Rehabilitation or Replacement of Sewer	A project is in the planning phases for increasing capacity of the surrounding sewer system to help mitigate flooding in the area during heavy rain.	A project is in the planning phases for increasing capacity of the surrounding sewer system to help mitigate flooding in the area during heavy rain.	N/A	12/18/2023 17:00	System surcharged due to heavy rain.	N												N													
8	8SSO10620	Active	EVMWD Regional Plant CS	Elsinore Valley Municipal Water District	891601	1.2	Amended	Jesus Barron	Collections System Worker III	20-DEC-23	22-DEC-23	22-DEC-23	Category 1 Spill	Village Way Lift Station	12/18/2023 19:48	12/18/2023 20:15	12/18/2023 19:30	12/18/2023 20:55	23-7726		Village Way L/S, See Attachment's 	33.68164	-117.26823	Force Main; Pump Station			11428	Sewage breached through the asphalt after the force main pipes at the lift station ruptured. See Attachments for supporting documents. 	N		0	0	Sewage gravity-flowed from lift station down behind nearby neighbors houses, into the lake. See attached photos.  	11428	0	Surface Water		Sewage flowing up from under the asphalt out in front of lift station. Sewage traveled behind lift station through easement and homeowners property entering the lake. 	Y	33.68174	-117.26859	33.68192	-117.26872					12/18/2023 20:16	Spill was calculated based off the pump run times (obtained via SCADA) and the pump rates during the spill period. The pumps were estimated to pump at a rate of 900 gpm, for a total of 10:51 minutes between the estimated start of the spill and the end of the spill. 1 pump was in operation during the spill. (1 pumps)*(900 gpm) * (10.51 mins) = 11,428 gallons	The spill start time was estimated based on the initial notification of the spill from a customer and the amount of sewage spilling. As the spill occurred in a populated area and it was in the evening when people were home, it was estimated that the spill would have been noticed within approximately 10 minutes. 	Pipe Structural Problem/Failure - Installation; Pump Station Failure - Mechanical		Force Main		Polyvinyl Chloride (PVC)		31	Spill entered surface water body and impacted customers property. 	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow	Performed disinfection at site and affected home. 	All three pumps were shut off to avoid further spilling. Called in back up to assist with locating the cause of the spill.	Repaired Facilities or Replaced Defect		Construction crews got to Lift station to locate and dig up the broken force main at 11:30 pm.  Construction Crew and Wastewater Collection Crew worked through the night to uncover the broken section of force main.  Repairs were done and a new piece of 10� PVC pipe was installed.  On 12/19/23 at 8:57am the force main was tested and put back into service. After that construction crew and Collection crew began the process of back filling the excavated areas.	N/A	12/20/2023 16:30	Construction crews got to Lift station to locate and dig up the broken force main at 11:30 pm.  Construction Crew and Wastewater Collection Crew worked through the night to uncover the broken section of force main.  Repairs were done and a new piece of 10� PVC pipe was installed.  On 12/19/23 at 8:57am the force main was tested and put back into service. After that construction crew and Collection crew began the process of back filling the excavated areas.	N			Canyon Lake 	Lake; Reservoir		Water body used for municipal & domestic water supply (water treatment plant has been offline since 2019), body contact & non-body contact recreation; commercial & sportfishing   	None observed	Public Closure		Canyon Lake POA	3	N	Y	Point-of-Entry: 33.68193, -117.268761 50' East: 33.68217, -117.26807 50' West: 33.68166, -117.26969 Sample unable to be collected from in-stream raw sewage due to insufficient flow  Map of sampling locations is attached. 	Ammonia & E. Coli										
3	3SSO10331	Active	Scotts Valley CS	Scotts Valley City	891602	1.4	Certified	Kati King	Division Manager		20-DEC-23	20-DEC-23	Monthly Category 3 Spill	119 Dell Way, Scotts Valley	12/18/2023 17:30	12/18/2023 18:15	12/18/2023 17:20				Very last resident near the top of the hill on 119 Dell Way. The spill was a result of very heavy rainfall and an illegal storm drain tied into the City sewer line.  clog from leaves and pine needles. The storm drain was dye tested and the dye showed up flowing into the City's sewer line.	37.06084	-122.01249	Manhole			60	spill discharged to land/ soil.	N						0	Unpaved Surface		Spill ran down the hill for estimate 15 feet onto unpaved soil.		37.06098	-122.01265							12/18/2023 18:30	Eyeball Method Volume Measurement Worksheet	Eyeball Method Volume Measurement Worksheet (SOP) estimated volume using the worksheet referencing pictures with varying gallons, sloped surfaces.	Inappropriate Discharge to Collection System		Manhole		Vitrified Clay		40	All 60 gallons ended up on surface/soil and absorbed into the ground surface.  No impact from final spill location.	Y	Other Enforcement Agency Notified; Property Owner Notified		Line was vacuumed and jetted cleared of debris.	Other (specify below)	residential property owner will need to remove their illegal storm drain from our Sanitary Sewer connection.	residential property owner will need to remove their illegal storm drain from our Sanitary Sewer connection.  This was a result of very heavy rain. leaves and pine needles flowing from the storm run off directly into our sewer comnnection.		12/18/2023 18:30	Very last resident near the top of the hill on 119 Dell Way. The spill was a result of very heavy rainfall and an illegal storm drain tied into the City sewer line.  clog from leaves and pine needles. The storm drain was dye tested and the dye showed up flowing into the City's sewer line.  Resident will be directed to remove their storm drain from the City sewer line.		Work with residentail owner to remove storm drain pipe.	01/19/2024 14:52														Source control and Public Works will work with residential owner to re move their storm run off drain from our sewer connection.	regular inspection of this area will be monitored 	More routine maintenacne inspections will be rotated in our collections program.	We are in the process of CCTV our City Lines to see where we should begin rehabilitation	Once the property owner works with the City to remove their illegal storm drain hook up.	Next several years  CCTV, start rehabiitating defective areas.	Modifications are not finished yet.	CCTV lines to find illegal hook ups, roots and failing lines.	Work with residentail owner to remove storm drain pipe.	
2	2SSO10183	Active	San Mateo CIty CS	San Mateo City	891605	1.2	Certified	Tony Baltodano 	PW Field Maintenance Manager 	20-DEC-23	05-JAN-24	05-JAN-24	Category 1 Spill	Hillsdale and Saratoga	12/20/2023 12:50	12/20/2023 13:15	12/20/2023 12:33	12/20/2023 14:38	23-7773	31-JAN-24	14 appearance points, 12 manholes and 2 cleanouts	37.5423	-122.2915	Gravity Mainline; Lateral Clean Out (Private); Manhole		Force main valve at Hillsdale and Saratoga diverted from McClellan(Delaware) to Bay Meadows Saratoga gravity line overwhelming Bay Meadows Pump Station	75600	14 appearance points, 12 manholes and 2 cleanouts over approx. 2600 ft. of roadway	Y	Multiple storm pipes running parallel to Saratoga dr. flowing into Borel creek	0	75600	3 36in outfall pipes	75600	0	Drainage Conveyance System		14 appearance spill points- 12 manholes and 2 cleanouts over approx. 2600 ft of roadway. 	Y	37.5423	-122.2915							12/20/2023 13:45	San Diego method was used, and it was estimated that each location spilled at 75 gpm	San Diego method was used and upon inspection all 14 appearance points stopped spilling. 	Other (specify below)	The force main flow from Santa Clara pump station was diverted to a gravity sewer line that flowed to the Bay Meadows pump station overwhelming the pump station causing the sanitary conveyance system to backup.  	Gravity Mainline		Vitrified Clay		23	Multiple storm pipes running parallel to Saratoga Dr. were affected causing spill to end up into Borel creek. 	Y	Mitigated Effects of Spill (specify below)	The diversion valves at Hillsdale and Saratoga Dr. were switched to send Santa Clara force main flow to Mclellan thus eliminating the overflows. 	 Staff were deployed to the Bay Meadows pump station to check on the pump station and it was confirmed that the pumps were operating properly. Staff then diverted the Santa Clara pump station flow to the gravity sewage line to Mclellan. Due to the rain activity at the time, clean up was not possible. 	Other (specify below)	Made notes to the sanitary conveyance system that the Santa Clara flow cannot be sent to Bay Meadows during a rain event. 	Made notes to the sanitary conveyance system that the Santa Clara flow cannot be sent to Bay Meadows during a rain event to avoid overwhelming the pump station. 	N/A 	12/20/2023 14:40	It was found that sending the Santa Clara pump station flow to Bay Meadows pump station will overwhelm the sanitary conveyance system which will cause SSO's. 	N			Borel Creek 	Other (specify below)	Borel Creek 	Borel Creek that leads to the Marina Lagoon 	None 	Public Closure; Restricted Public Access		City of San Mateo Regulatory Compliance Department. 	6	Y	Y	Borel Creek 	ammonia, E coli,enterrao										
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	891606	1.5	Certified	Daniel Whitlock	Manager	20-DEC-23	02-JAN-24	02-JAN-24	Category 2 Spill	Indiana St and Marin St	12/18/2023 16:57	12/18/2023 17:00	12/18/2023 05:50		-		Spill was contained to the intersection of Marin and Indiana   	37.74881	-122.39035	Combined Sewer Drain Inlet. (Combined Collection System Only); Manhole			336000	Ponding at the intersection of Marin and Indiana.	N						336000	Other (specify below); Paved Surface; Street/Curb and Gutter (2 3)	All portions of the spill was returned back into the combined system.	Intersection of Marin and Indiana in an industrial area.	Y	37.74881	-122.39035							12/18/2023 16:10	SFPUC H&H Model	SFPUC H&H Model	Surcharged Pipe (Combined Collection System Only)		Other (specify below)	No failure occurred. Rain exceeded system design/capacity.  	Concrete; Other (specify below)	No failure occurred. Rain exceeded system capacity.  	30	Water ponding at the intersection of Marin and Indiana located in industrial area. No property damage.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Returned All Spill to Sanitary Sewer System		Once the ponding subsided back into the combined system, Vacon crew washed and cleaned intersection and cleaned all catch basins at location. 	Other (specify below)	No corrective action. Rain exceeded design/capacity.	No corrective action. Rain exceeded design/capacity.	No corrective action. Rain exceeded design/capacity.	12/18/2023 18:18	Rainfall exceeded design/capacity. 	N												Y													
4	4SSO10420	Active	Rancho Palos Verdes City CS	Rancho Palos Verdes City	891608	1.2	Certified	Robert Swartz	Sr. CE	21-DEC-23	02-JAN-24	02-JAN-24	Category 1 Spill	1545-0481 (28641 Crestridge Road, Rancho Palos Verdes)	12/18/2023 14:38	12/18/2023 15:45	12/18/2023 13:40		-		CSMD Map Sheet No. 1545 Manhole No. 481 MMS No. 8605155 Manhole No. 481 was overflowing.	33.76667	-118.37107	Manhole	Manhole No. 481		600	Sewage was overflowing from Manhole No. 481 onto the street.  A portion of the sewage spill entered a storm drain located at 28725 Crestridge Road.	Y	A portion of the sewage spill entered a storm drain located at 28725 Crestridge Road.	0	300	A portion of the sewage spill entered a storm drain located at 28725 Crestridge Road, which leads to unknown drain, and PD 0486 Line A.   Major Watersheds - Dominguez Channel & L.A. Harbor Major Subwatersheds - Machado Lake Watershed Boundaries - Long Beach Harbor	300	300	Drainage Conveyance System; Street/Curb and Gutter (2 3)		Sewage was overflowing from Manhole No. 481 onto the street.  A portion of the sewage spill entered a storm drain located at 28725 Crestridge Road, which leads to unknown drain, and PD 0486 Line A.   Major Watersheds - Dominguez Channel & L.A. Harbor Major Subwatersheds - Machado Lake Watershed Boundaries - Long Beach Harbor	Y	33.76524	-118.36966							12/18/2023 15:50	Visual or Eyeball Method	The start time is obtained from the reporting party, the end time is when the crew clears the obstructions, and the overflow stops.	Fats, Oil and Grease (FOG); Pipe Structural Problem/Failure - Controls		Gravity Mainline		Vitrified Clay		66	N/A	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		A hydrojetter was set up to break down grease stoppage between manholes 480 and 481. Then, we picked up the contaminated dirt and disposed of it in large trash bags. Finally, we dumped the remaining 500 gallons of fresh water from our tanks to wash down the curb and gutter. All required agencies were promptly notified.	Other (specify below)	The mainline will be televised to determine if the PM frequency needs to be changed.	The mainline will be televised to determine if the PM frequency needs to be changed.	N/A	12/18/2023 17:00	The mainline will be televised to determine if the PM frequency needs to be changed.	Y	The mainline will be televised to determine if the PM frequency needs to be changed.	02/18/2024 17:00	Dominguez Channel & L.A. Harbor	Lake; Other (specify below)	A portion of the sewage spill entered a storm drain located at 28725 Crestridge Road, which leads to unknown drain, and PD 0486 Line A.   Major Watersheds - Dominguez Channel & L.A. Harbor Major Subwatersheds - Machado Lake Watershed Boundaries - Long Beach Harbor	A portion of the sewage spill entered a storm drain located at 28725 Crestridge Road, which leads to unknown drain, and PD 0486 Line A.   Major Watersheds - Dominguez Channel & L.A. Harbor Major Subwatersheds - Machado Lake Watershed Boundaries - Long Beach Harbor	N/A	Other (specify below)	No impact.	City of Los Angeles	0	N	N											The mainline will be televised to determine if the PM frequency needs to be changed.	
5S	5SSO10974	Active	Kelseyville Co Water Works Dis & AD9-2 CS	Lake Cnty	891621	1.1	Certified	Steven Phillips	Utility Systems Compliance Coordinator		17-JAN-24	17-JAN-24	Monthly Category 3 Spill	5733 Single springs Drive	12/21/2023 08:33	12/21/2023 08:40	12/19/2023 10:00				Roots in main line caused main to back up and spill out of property line cleanout	38.97126	-122.82522	Lateral Clean Out (Public)			200	Spill was onto an unpaved driveway surface. See attachments	N						0	Unpaved Surface		spilled onto unpaved driveway surface	Y	38.9712671	-122.8250925							12/21/2023 11:23	measured area method	Start time was estimated based on data proved by property owner. End time was estimated based on notification from field crew	Root Intrusion		Gravity Mainline		Other (specify below)	Clay	60	Minimal impact to property. All contaminated soil was removed	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow		All contaminated soil was removed from the site. Lime was spread over wetted area	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		This section of the gravity main will be relined in the near future		12/21/2023 11:37	Gravity main was obstructed by roots causing it to backup into at property lateral. Property line cleanout was missing a cap so sewage flowed out of uncapped cleanout on to unpaved driveway surface		None at this time	01/17/2024 11:37														N/A	Line cleaning	None	Relining planned in this area	New cap placed on property line cleanout	None at this time	None at this time	None at this time	None at this time	
8	8SSO10580	Active	Inland Empire Utilities Agency CS	Inland Empire Utilities Agency	891622	1.1	Certified	Pietro Cambiaso	Manager of Compliance and Sustainability		21-DEC-23	21-DEC-23	Monthly Category 3 Spill	San Bernardino Lift Station	11/07/2023 09:26	11/07/2023 10:17	11/07/2023 00:53				San Bernardino Lift Station Pump #4	34.0768285	-117.5058979	Pump Station			546	All flow was contained in storm water basins adjacent to the warehouse and the standing water recovered. Only water that saturated into the soil was not recovered at the time of the spill. Contaminated soil was removed by 11/15/23.	Y	Spill entered a storm drain inlets on the adjacent property, which conveyed the water into storm water basins. 	546				546	Drainage Conveyance System; Paved Surface; Unpaved Surface		The spill flowed into an adjacent parking lot, and into a storm drain that conveyed the water into the storm water basins. Spill was fully-contained in the basins and flow did not reach a receiving water. 	Y	34.076798	-117.505765	34.076718	-117.505599	34.075591	-117.50637			11/07/2023 09:24	Operations took measurements and prepared a PowerPoint detailing calculations of Spill volume on hard surfaces = 289.6 gallons. Collections performed volume calculations within the culvert to calculate contaminated soil. Then using soil saturation testing calculated volume of spill in the contaminated soil = 262.5 gallons	The spill was reported by the local business adjacent to the SBLS and they also reported no issue at the close of business the previous day. The SCADA system showed a 2 psi drop in pressure when the pump ran at 12:53 a.m. The compromised pump ran 4 times for 7 minutes each time with the last run time being complete at 9:24 a.m. after which the pump was removed from service preventing any further spill.	Pump Station Failure - Mechanical		Pump Station - Mechanical		Other (specify below)	Not a pipeline failure	0	No environmental impacts from the spill. Spill did not reach a receiving water and volume was recovered. Soil removal was also performed. 	N	Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Contaminated soil removal and disposal	Flow from the spill followed the natural slope and accumulated in drainage gutters in the hardscape. These gutters discharged at two separate points inside of the adjacent storm water basins where the spill pooled up. The initial operators on site used berms to focus the spill into the drains. Upon arrival of the vactor trucks, tubes were set up within the basins and recovery began. A water truck was used to wash the hardscape and flush the storm drains to the discharge point and the wash down water was collected. After immediate clean-up efforts were completed, the Collections crew returned to remove all the contaminated soil that the spill had reached using a shovel and vacuum tubes.	Repaired Facilities or Replaced Defect		The leaking water was a combination of wastewater and potable water coming from the inspection plate at SBLS Pump #4 due to a cracked shaft. The spill would only occur when the pump ran, which was a total of 4 times at 7 minutes each time for the duration of the spill. The pump was removed from service as soon as the issue was discovered. The pump has since been removed and replaced and is in the process of being analyzed for cause of failure. IEUA is currently assessing options to improve containment within the SBLS should a simliar instance occur.		11/15/2023 11:30	SBLS Pump #4 was removed and is currently being analyzed for cause. It was found that there was a failed seal water packing gland and cracked shaft. The root cause of the failure is still being investigated by IEUA's Asset Management staff.  Potential causes include radial vibration, seal water lubrication, and/or manufacturer defect.  		Ongoing investigation of the SBLS Pump #4 packing gland failure and shaft break.  Pump has been replaced with spare. 	02/29/2024 00:00														NA	Options that will be considered include: perimeter containment, sump equipped with alarm for notification, passive overflow options, or improved containment structures.	NA	NA	SBLS Pump #4 was removed and is currently being analyzed for cause. It was found that there was a failed seal water packing gland and cracked shaft. The root cause of the failure is still being investigated by IEUA's Asset Management staff.  Potential causes include radial vibration, seal water lubrication, and/or manufacturer defect.  	IEUA Engineering project 23026 will replace the four existing vertical turbine pumps with new chopper pumps.  	Electronic logbook entry made by Trey Dyer confirming operations response as well as an entry made verifying lockout tag out and work notification submission.	Updated sampling kits and chain of custodies for sanitary sewer spills.  Lab will provide training to Operations and Collections staff in early 2024.	Ongoing investigation of the SBLS Pump #4 packing gland failure and shaft break.  Pump has been replaced with spare. 	
3	3SSO10265	Active	El Estero CS	Santa Barbara City PWD	891623	1.3	Certified	Amanda Flesse	Wastewater System Manager	21-DEC-23	08-JAN-24	08-JAN-24	Category 1 Spill	205 Stanley Dr.	12/21/2023 09:40	12/21/2023 09:40	12/21/2023 09:40	12/21/2023 14:47	23-7802	12-JAN-24	The City of Santa Barbara experienced a wet weather SSO at Vernon and Stanley�two appearance points: MH-D06-030 and MH-D06-107.	34.43521	-119.72679	Manhole		The second appearance point is at MH-D06-107. Upstream from MH-D06-030 See attachment (Map 2)	6150	The City of Santa Barbara experienced a wet weather SSO at Vernon and Stanley�two appearance points: MH-D06-030 and MH-D06-107. City staff was at the SSO location before the spill. City staff set up vacuum units to minimize the discharge volume.	Y	The SSO entered a nearby drainage conveyance system discharging to Mission Creek Water Shed and daylights at East/West Beach.  See Attachments (Map 3). 	0	5150	The SSO entered a nearby drainage conveyance system discharging to Mission Creek Water Shed and daylights at East/West Beach.  See Attachments. 	5150	1000	Surface Water		The SSO entered a nearby drainage conveyance system discharging to Mission Creek Water Shed and daylights at East/West Beach.  See Attachments (Map 3). 	Y	34.41258	-119.68652							12/21/2023 10:20	WWC staff was at the SSO location when the spill started.  Rate and Duration mythology for SSO calculation. CWEA training. Sewer Spill Estimation Guide by Orange County. City of Santa Barbara inground SSO simulator training.  	WWC staff was at the SSO location when the spill started.  Rate and Duration mythology for SSO calculation. CWEA training. Sewer Spill Estimation Guide by Orange County. City of Santa Barbara inground SSO simulator training.  SSO Technical Report, Videos, Pictures, and SmartCover data were reviewed with the responding team to calculate SSO estimations.   	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Gravity Mainline		Other (specify below); Polyvinyl Chloride (PVC)	Lined 	17	The SSO entered a nearby drainage conveyance system that discharges to Mission Creek Water Shed and day lights at East/West Beach.  See Attachments (Map 3). 	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Bypass and vacuum. 	WWC crew set up containment (vacuumed) at MH-D06-030 Vernon and Stanley, and WWC crew set up containment (vacuumed) at MH-D06-107 Vernon and Serena. A bypass pumper was set up at MH-D06-045 Vernon and De La Vina and bypassed MHD06-003.  Cleanup was limited due to wet weather event. 	Plan Rehabilitation or Replacement of Sewer	I and I study	A Project to replace the sipon in this area is scheduled to begin in the Summer of 2025	Summer of 2025 to begin construction of the bridge which will replace the siphon.	12/21/2023 22:30	Wet weather event. 	N			Mission Creek Water Shed	Ocean		Mission Creek watershed	No. 	Public Closure		Santa Barbara County Health 	15	N	Y	Santa Barbara County Health sampled at East/West Beach. 	Santa Barbara County Health conducted the water quality sampling. It is unknown from the City which samples were conducted. 										
8	8SSO10620	Active	EVMWD Regional Plant CS	Elsinore Valley Municipal Water District	891601	2.1	Amended	Jesus Barron	Collections System Worker III	20-DEC-23	22-DEC-23	22-DEC-23	Category 1 Spill	Village Way Lift Station	12/18/2023 19:48	12/18/2023 20:15	12/18/2023 19:30	12/18/2023 20:55	23-7726		Village Way L/S, See Attachment's 	33.68164	-117.26823	Force Main; Pump Station			9762	Sewage breached through the asphalt after the force main pipes at the lift station ruptured. See Attachments for supporting documents. 	N		0	0	Sewage gravity-flowed from lift station down behind nearby neighbors houses, into the lake. See attached photos.  	11428	0	Surface Water		Sewage flowing up from under the asphalt out in front of lift station. Sewage traveled behind lift station through easement and homeowners property entering the lake. 	Y	33.68174	-117.26859	33.68192	-117.26872					12/18/2023 20:16	Spill was calculated based off the pump run times (obtained via SCADA) and the pump rates during the spill period. The pumps were estimated to pump at a rate of 900 gpm, for a total of 10:51 minutes between the estimated start of the spill and the end of the spill. 1 pump was in operation during the spill. (1 pumps)*(900 gpm) * (10.51 mins) = 9,762 gallons	The spill start time was estimated based on the initial notification of the spill from a customer and the amount of sewage spilling. As the spill occurred in a populated area and it was in the evening when people were home, it was estimated that the spill would have been noticed within approximately 10 minutes. 	Pipe Structural Problem/Failure - Installation; Pump Station Failure - Mechanical		Force Main		Polyvinyl Chloride (PVC)		31	Spill entered surface water body and impacted customers property. 	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow	Performed disinfection at site and affected home. 	All three pumps were shut off to avoid further spilling. Called in back up to assist with locating the cause of the spill.	Repaired Facilities or Replaced Defect		Construction crews got to Lift station to locate and dig up the broken force main at 11:30 pm.  Construction Crew and Wastewater Collection Crew worked through the night to uncover the broken section of force main.  Repairs were done and a new piece of 10� PVC pipe was installed.  On 12/19/23 at 8:57am the force main was tested and put back into service. After that construction crew and Collection crew began the process of back filling the excavated areas.	N/A	12/20/2023 16:30	Construction crews got to Lift station to locate and dig up the broken force main at 11:30 pm.  Construction Crew and Wastewater Collection Crew worked through the night to uncover the broken section of force main.  Repairs were done and a new piece of 10� PVC pipe was installed.  On 12/19/23 at 8:57am the force main was tested and put back into service. After that construction crew and Collection crew began the process of back filling the excavated areas.	N			Canyon Lake 	Lake; Reservoir		Water body used for municipal & domestic water supply (water treatment plant has been offline since 2019), body contact & non-body contact recreation; commercial & sportfishing   	None observed	Public Closure		Canyon Lake POA	3	N	Y	Point-of-Entry: 33.68193, -117.268761 50' East: 33.68217, -117.26807 50' West: 33.68166, -117.26969 Sample unable to be collected from in-stream raw sewage due to insufficient flow  Map of sampling locations is attached. 	Ammonia & E. Coli										
8	8SSO10620	Active	EVMWD Regional Plant CS	Elsinore Valley Municipal Water District	891601	3.1	Certified	Jesus Barron	Collections System Worker III	20-DEC-23	22-DEC-23	22-DEC-23	Category 1 Spill	Village Way Lift Station	12/18/2023 19:48	12/18/2023 20:15	12/18/2023 19:30	12/18/2023 20:55	23-7726		Village Way L/S, See Attachment's 	33.68164	-117.26823	Force Main; Pump Station			9762	Sewage breached through the asphalt after the force main pipes at the lift station ruptured. See Attachments for supporting documents. 	N		0	0	Sewage gravity-flowed from lift station down behind nearby neighbors houses, into the lake. See attached photos.  	9762	0	Surface Water		Sewage flowing up from under the asphalt out in front of lift station. Sewage traveled behind lift station through easement and homeowners property entering the lake. 	Y	33.68174	-117.26859	33.68192	-117.26872					12/18/2023 20:16	Spill was calculated based off the pump run times (obtained via SCADA) and the pump rates during the spill period. The pumps were estimated to pump at a rate of 900 gpm, for a total of 10:51 minutes between the estimated start of the spill and the end of the spill. 1 pump was in operation during the spill. (1 pumps)*(900 gpm) * (10.51 mins) = 9,762 gallons	The spill start time was estimated based on the initial notification of the spill from a customer and the amount of sewage spilling. As the spill occurred in a populated area and it was in the evening when people were home, it was estimated that the spill would have been noticed within approximately 10 minutes. 	Pipe Structural Problem/Failure - Installation; Pump Station Failure - Mechanical		Force Main		Polyvinyl Chloride (PVC)		31	Spill entered surface water body and impacted customers property. 	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow	Performed disinfection at site and affected home. 	All three pumps were shut off to avoid further spilling. Called in back up to assist with locating the cause of the spill.	Repaired Facilities or Replaced Defect		Construction crews got to Lift station to locate and dig up the broken force main at 11:30 pm.  Construction Crew and Wastewater Collection Crew worked through the night to uncover the broken section of force main.  Repairs were done and a new piece of 10� PVC pipe was installed.  On 12/19/23 at 8:57am the force main was tested and put back into service. After that construction crew and Collection crew began the process of back filling the excavated areas.	N/A	12/20/2023 16:30	Construction crews got to Lift station to locate and dig up the broken force main at 11:30 pm.  Construction Crew and Wastewater Collection Crew worked through the night to uncover the broken section of force main.  Repairs were done and a new piece of 10� PVC pipe was installed.  On 12/19/23 at 8:57am the force main was tested and put back into service. After that construction crew and Collection crew began the process of back filling the excavated areas.	N			Canyon Lake 	Lake; Reservoir		Water body used for municipal & domestic water supply (water treatment plant has been offline since 2019), body contact & non-body contact recreation; commercial & sportfishing   	None observed	Public Closure		Canyon Lake POA	3	N	Y	Point-of-Entry: 33.68193, -117.268761 50' East: 33.68217, -117.26807 50' West: 33.68166, -117.26969 Sample unable to be collected from in-stream raw sewage due to insufficient flow  Map of sampling locations is attached. 	Ammonia & E. Coli										
4	4SSO10373	Active	Burbank City, Public Works CS	Burbank City DPW	891632	1.1	Certified	Stephen Walker	Assistant Public Works Director		17-JAN-24	17-JAN-24	Monthly Category 3 Spill	848 N. Valley St. (backyard easement)	12/02/2023 15:25	12/02/2023 15:48	12/02/2023 15:23				Manhole located in the public utility easement in the backyard of the private residence at 848 N. Valley St. Sewage bubbled out of the manhole located in the easement into the adjacent private property flower bed, and separately via the private sewer lateral into the bathroom/garage of the private residence.	34.16372	-118.35262	Inside Building or Structure; Manhole			60	Sewage bubbled out of the manhole located in the easement into the adjacent private property flower bed, and separately via the private sewer lateral into the bathroom/garage of the private residence.	N						60	Building or Structure; Unpaved Surface		Sewage bubbled out of the manhole located in the easement into the adjacent private property flower bed, and separately via the private sewer lateral into the bathroom/garage of the private residence. Ultimately, spill flows were recovered and returned to the City's sewer collection system. 										12/02/2023 16:18	The flow was determined by assessment of the wetted area/perimeter in the garage, and amount bucketed out of the flower bed. Please note that the flow was found to be intermittent upon arrival to the site.  Garage wetted perimeter dimensions: 16 ft x 16 ft x 1/8 in deep = 2.67 cubic feet = 20 gallons. The volume of sewage removed from the flower bed was calculated by the number of 5-gallon buckets used to remove all of the sewage: 6 buckets x 5 gallons = 30 gallons. Please note that an additional 10 gallons was estimated to have seeped into the ground of the flower bed based on visual observance (the flower bed being approximately 3.5 ft wide by 35 ft long). Therefore, the SSO totals approximately 60 gallons. 	The flow was determined by measurement of the wetted area/depth in the garage bathroom, and amount bucketed out of the flower bed. An additional 10 gallons was estimated to have infiltrated into the ground of the flower bed based upon observations of the field crew members onsite (the flower bed being approximately 3.5 ft wide by 35 ft long). Please note that the flow was found to be intermittent upon arrival. 	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		84	Private residence impacted, flows were returned to the City sewer collection system, and area was cleaned.	N	Returned Portion of Spill to Sanitary Sewer System	Majority of flows returned to sewer system.  Approximately 10 gallons seeped into flower bed.	Flows were returned to the sewer system using buckets and then cleaned with fresh water and chlorine. 	Adjusted Schedule/Method of Preventive Maintenance		Cleaned the City sewer collection system using a hydro jet and returned  the system to full functionality. 		12/02/2023 16:18	Sewage bubbled out of the manhole located in the easement into the adjacent private property flower bed, and separately via the private sewer lateral into the bathroom/garage of the private residence. The cause of the obstruction was found to be from roots and grease restricting flow approximately 100 feet downstream from the manhole located in the easement at 848 N. Valley St. The City sewer main was cleaned using a hydro jet and returned to full functionality. Ultimately, the spill flows were recovered and returned to the City's sewer collection system, and the area was cleaned.		N/A	12/02/2023 16:18														N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	
8	8SSO10566	Active	Costa Mesa SD CS	Costa Mesa Sanitary District	891633	1.3	Certified	Mark Esquer	District Engineer	22-DEC-23	08-JAN-24	08-JAN-24	Category 1 Spill	CMSD Sewer 150042 MacArthur SSO	12/21/2023 15:07	12/21/2023 15:30	12/21/2023 14:27	12/21/2023 16:33	-		SSO of 200 gallons, or less, left system on private property easement at 1571 W. MacArthur Blvd, CM, and spilled over onto 1561 W. MacArthur Blvd private property, travelled down private ribbon gutter to the City Street, then travelled westerly along MacArthur Blvd gutter to the County Storm Drain inlet. The catch basin is located at easterly corner of MacArthur Blvd at Harbor Gateway North.  SSO was contained by 15:45 Hours with sandbags, upstream of catch basin.   Minimal light-rain during early morning hours prior to the SSO. 	33.701786	-117.922197	Inside Building or Structure; Lateral Clean Out (Private); Other (specify below)	Private Property (1571 W. MacArthur Blvd) Floor drain associated with industrial treatment facility. Ponded Sewage then overflowed onto easterly private property (1561 W. MacArthur  Blvd), and travelled down the private ribbon gutter to the City Street. 		200	Local sewer served three (3) commercial/light industrial properties within a 9.6 acre area. One hundred, eighty (180) to 200 gallons of sewage, based on hydraulic calculations considering gutter flow width and slope, entered the storm drain.  	Y	County drainage system at SSO point of entry is a 5'X7' Box (county designation D03 P01) that conveys storm flow about 4,400 feet south to an open trapezoidal channel. County system is tributary to the Santa Ana river. 	5	195	Storm Drain catch basin on MacArthur Blvd on the east side of Harbor Gateway North.	195	5	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water		An SSO of 200 gallons, or less, occurred on private property, 1571 W. MacArthur Blvd. The SSO resulted from a stoppage in the CMSD public sewer within an easement on private property. Sewerage ponded on private property and spilled onto a adjoining private property (1561 W. MacArthur Blvd), to a private ribbon gutter, then to the street. At the street, the SSO travelled westerly to a catch basin to the County storm drain system located at southeasterly corner of Harbor Gateway North and West MacArthur Blvd.	Y	33.701786	-117.922197							12/21/2023 15:30	The properties stopped using water prior to arrival at the SSO location. So only a trickle of flow was in the gutters. The District and their consultant used the photos showing evidence of SSO flows in the gutter (width, depth, slope of gutter, and gutter dimensions) along with Manning's  hydraulic equation to determine flow volume/rate.	The estimated spill start was based on the property owner report that sewage was coming our the bathroom floor drain (2:27 PM). That property owner called the neighboring properties to learn that they were also having issues, but no spill. The property owners initiated a shutdown of water use. When the District arrived at 3:30PM and set up containment, the SSO flow was none-existent to a trickle, depending on location. The containment only captured residual flow within the gutter and was vacuumed up by the District Vactor unit.  The initial onsite estimate was based on the District Engineers understanding of the 9 acre sewer shed and maximum flows. The District Engineer used 4.5 gpm for an estimated 90 minute period of active flow. The follow-up calculation used engineering calculations, measurements of the gutter, and measured gutter slope to determine maximum flow rate. Because property water use was curtailed, the flow varied during the 63 minute period prior to setting containment.	Debris-Rags; Debris-wipes/Non-disposables		Gravity Mainline		Vitrified Clay		57	There was minimal impact to the affected private property as they vacuumed spilled sewage off the bathroom floor and the ponding relieved itself into the business floor drains at the process area(s). About 200 gallons of sewage entered the storm drain system. Due to the rain storm ending the morning prior to the afternoon spill, the County health typical posts beach warnings about impacted runoff. 	N	Contained All or Portion of Spill; Other (specify below); Restored Flow	Used one District vacuum truck to clear the stoppage and a second vacuum truck to vacuum contained sewage and washdown water. The first vacuum truck washed from the spill points to the catch basin.	Upon arrival, District staff set containment, called for the vacuum trucks, and worked with the property owners to clear the stoppage and clean up involved properties. 	Other (specify below)	District will send  What to Flush  literature to the properties upstream of the stoppage. The letter will describe that rags/wipes were determined to contribute to the stoppage. 	The District will send information literature about wipes and flushing only toilet paper, poo, and pee down the toilets. The District will also review the subject sewer in 9 months, instead of the normal 12-month cleaning schedule, to determine if enhanced cleaning is required. The subject sewer was cleaned about 10 months prior to the SSO.	Conduct inspection of the subject sewer in early September 2024.	01/08/2024 13:35	When District vacuum truck #1 was clearing the stoppage, they observed a  soft  plug and mentioned rags/wipes in the cleared flow. 	N			OC County Open Channel D03, then to the Santa Ana river	River		Santa Ana river	None noticed. 	Restricted Public Access	Because of the rainstorm prior to the SSO, the OC health department posted the beaches.	OC Health	0	N	N												
2	2SSO10168	Active	Redwood City CS	Redwood City	891636	1.5	Certified	Robin Kim	Public Works Superintendent		28-DEC-23	28-DEC-23	Monthly Category 3 Spill	1600 block Sierra St	11/26/2023 11:58	11/26/2023 12:30	11/26/2023 11:50				Manhole located in the intersection of Sierra St and Kansas St in Redwood City with coordinates 37.46311211245607, -122.22725561176964.	37.463112112456	-122.22725561177	Manhole			120	The spill was contained to the curb's gutter on the 1600 block of Sierra St and the intersection of Sierra St and Kansas St in Redwood City.	N						120	Street/Curb and Gutter (2 3)		The spill came out of a manhole at the intersection of Sierra St and Kansas St in Redwood City. The spill went past the valley gutter and also ran along the curb where it stopped at a pile of leaves in front of 1603 Pecan Ct (on the Sierra St side of the corner property). The length of the spill was about 242 feet and the average width of the spill was about 1 ft with 0.5  depth. There is a storm inlet at the end of the street, but the spill did not reach it.	Y	37.463516512806	-122.227870129592							11/26/2023 12:20	Spill volume estimation is based on the estimated begin (11:50am) and end (12:20pm) times of the spill, along with a reasonable assumption of 4 gpm flow rate based on photos taken of the spill event.  30 min * 4 gpm = 120 gallons	Police Dispatch received a call at 11:58am. The reporting party notified them of a �water leak�, and PD paged out the Water on-call staff who arrived on site about 12:15pm. After locating the �water leak� and inspecting the area he noted that it was a wastewater issue and that there was a trickle coming from the manhole. He notified the Sewer on-call staff who arrived at 12:30pm at which time there was no active spill occurring.  We were unable to verify if the initial reporting party was present at the time the spill began, however, working backwards from staff recollections at 12:30pm (Sewer on-call staff) and 12:15pm (Water on-call staff) and from photos taken when the Sewer on-call staff arrived on site, we make a reasonable assumption that the spill began around at 11:50am and ended at 12:20pm.	Debris-General; Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		50	The spill was only on concrete and asphalt paved surfaces.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Upon arrival to scene, there was no active spill coming from source of origin (manhole). The spill was contained to concrete and asphalt paved surfaces and was vactored up and the affected surfaces were hosed down.	Adjusted Schedule/Method of Preventive Maintenance		This area is known to have grease from the residential properties, so after the spill we flushed the main on Sierra St and the side streets connecting to that main (Kansas, Pecan, Hampton, Carleton, Palm, Lark).		11/26/2023 13:17	This area is known to have grease and roots from the surrounding residential properties. After the spill had been cleaned up, staff flushed the main line and subsequent side streets and confirmed some areas of the system had light silt, light grease, or minor roots. We have flushed some areas twice to ensure there are no blockages and plan to monitor this area more frequently.		After the spill staff inspected nearby manholes and flushed the main line as well as lines on connecting side streets (Kansas St, Pecan Ct, Hampton Ave, Carleton Ct, Palm Ave, Lark Ave). Inspections found that some areas had light silt, light grease, and/or minor roots.	12/22/2023 15:30														Not applicable	We have modified our preventive maintenance schedule to have more frequent maintenance for this area.	We have modified our preventive maintenance schedule to have more frequent maintenance for this area.	No plans to rehabilitate or replace these sanitary sewer assets (manhole, gravity main line).	No repairs required.	Not applicable.	Internal PM schedule has been updated to monitor this location more frequently.	Staff has been instructed to take photos upon arriving at the site, during cleanup, and after the spill has been cleaned.	After the spill staff inspected nearby manholes and flushed the main line as well as lines on connecting side streets (Kansas St, Pecan Ct, Hampton Ave, Carleton Ct, Palm Ave, Lark Ave). Inspections found that some areas had light silt, light grease, and/or minor roots.	
2	2SSO10170	Active	Richmond City CS	Richmond City	891637	1.1	Certified	Mary Phelps	Project Manager		30-DEC-23	30-DEC-23	Monthly Category 3 Spill	25 Cottage Ave, Richmond, CA	11/20/2023 13:18	11/20/2023 13:28	11/20/2023 13:10				Manhole in intersection of street.	37.9273	-122.38535	Manhole			175	Spill exited manhole and discharged into storm drain  drop inlet. Enter spill was contained downstream of drop inlet and returned to sanitary sewer.	Y	storm drain drop inlet	175				175	Drainage Conveyance System		Spill contained to one drop inlet. No additional information available.	N									11/20/2023 13:45	Rate of flow x length of duration of spill event	Spill end time was based on physical observation by on-site crew.	Root Intrusion		Gravity Mainline		Vitrified Clay		50	Minimal impact of spill on community	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Area was sectioned off until crew could safety mitigate spill clean-up.	Adjusted Schedule/Method of Preventive Maintenance		Added sewer line segment to Root-control and Hot Spot list for increased cleaning.		11/20/2023 14:20	After-action report determined that line segment should be added to Hot spot List for increased cleaning.		None.	11/30/2023 09:01														None 	Increased maintenance of line segment.	Increased O&M of line segment.	None.	None.	None.	None.	None.	None.	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	891640	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		03-APR-24	03-APR-24	Monthly Category 3 Spill	1404 North Devlin Drive	12/24/2023 22:00	12/24/2023 22:15	12/24/2023 22:00				The initial crew arrived at 10:15P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.096083	-118.386686	Manhole			359	None.	N	None.	0				0	Other (specify below)	The entire back up amount soaked into the ground.	34.096083  118.386686	Y	34.096083	-118.386686							12/25/2023 00:05	Spill flowrate and volume determination based on flowout pickhole or opening 	Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening2inches Flowrate per pickole/opening (gpm)3gpm # of pickholes/openings1 Total flowrate (gpm)3gpm Duration of spill (minutes)125minutes Total flow (gallons)359gallons 	Root Intrusion		Gravity Mainline		Vitrified Clay		63	It was estimated that approximately 359 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.  	N	Restored Flow		On Sunday, December 24, 2023 at 10:00 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1404 North Delvin Drive (TG 592-H5). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 12:05 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 359 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.   	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		The Pipeline Will Be Placed On A Semi-Annual Maintenance Schedule, CCTV Revealed Some Defects That Require Repair. These Repairs Will Be Performed City Contractor.		12/25/2023 00:05	On Sunday, December 24, 2023 at 10:00 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1404 North Delvin Drive (TG 592-H5). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 12:05 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.		None At This Time.	12/25/2023 00:05														None At This Time.	The Pipeline Will Be Placed On A Semi-Annual Maintenance Schedule, CCTV Revealed Some Defects That Require Repair. These Repairs Will Be Performed City Contractor.	The Pipeline Will Be Placed On A Semi-Annual Maintenance Schedule, CCTV Revealed Some Defects That Require Repair. These Repairs Will Be Performed City Contractor.	The Pipeline Will Be Placed On A Semi-Annual Maintenance Schedule, CCTV Revealed Some Defects That Require Repair. These Repairs Will Be Performed City Contractor.	The Pipeline Will Be Placed On A Semi-Annual Maintenance Schedule, CCTV Revealed Some Defects That Require Repair. These Repairs Will Be Performed City Contractor.	None At This Time.	The Pipeline Will Be Placed On A Semi-Annual Maintenance Schedule, CCTV Revealed Some Defects That Require Repair. These Repairs Will Be Performed City Contractor.	On Sunday, December 24, 2023 at 10:00 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1404 North Delvin Drive (TG 592-H5). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 12:05 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 359 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.   	None At This Time.	
4	4SSO11372	Active	Unincorporated County Area CSMD/Las Virgenes Tapia CS	Los Angeles Cnty DPW	891643	1.1	Certified	Robert Swartz	Sr. CE		09-JAN-24	09-JAN-24	Monthly Category 3 Spill	1091-0074 (28940 Medea Mesa Road, Agoura Hills - Unincorporated County Area)	12/12/2023 13:33	12/12/2023 14:00	12/12/2023 11:30				CSMD Map Sheet No. 1091 Manhole No. 74 MMS No. 8597385 Manhole No. 74 was overflowing.	34.12849	-118.75415	Manhole	Manhole No. 74		600	The estimated spill dissipated into an unpaved surface area. 	N						0	Unpaved Surface		The estimated spill dissipated into an unpaved surface area. 	N									12/12/2023 15:00	CWEA SSCSC Manhole Gauge 	The start time is obtained from the reporting party, the end time is when the crew clears the obstructions, and the overflow stops. 	Debris-Rags; Root Intrusion		Gravity Mainline		Other (specify below)	ABSCP	40	N/A	N	Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow		Hydro jet equipment was utilized to clear the mainline debris and rags blockage. All required agencies were notified. 	Other (specify below)	Inspect and monitor condition.	Will inspect sewer using CCTV and will add sewer to 90-day preventive maintenance program.  		12/12/2023 16:30	Will inspect sewer using CCTV and will add sewer to 90-day preventive maintenance program.  		Will inspect sewer using CCTV and will add sewer to 90-day preventive maintenance program.  	02/12/2024 12:00														N/A	N/A	Will inspect sewer using CCTV and will add sewer to 90-day preventive maintenance program.  	N/A	N/A	N/A	N/A	N/A	Will inspect sewer using CCTV and will add sewer to 90-day preventive maintenance program.  	
9	9SSO10676	Active	Meadowlark CS	Vallecitos Water District	891645	1.1	Certified	Ed Pedrazzi	O&M Manager		17-JAN-24	17-JAN-24	Monthly Category 3 Spill	Broken Rock and Rancho Santa Fe	12/21/2023 10:16	12/21/2023 10:16	12/21/2023 10:08				Spilled from MH 1049 at the intersection of Rancho Santa Fe and Broken Rock Road, San Marcos.	33.1249	-117.2157	Manhole			67	Spilled from MH1049 shown in the attached photos. Spill then ran down to the curb and gutter and entered separate storm drain system where it pooled in a downstream drain box and the entire spill was recovered. 	Y	Spill entered a city owned drainage system through a drop inlet. From there it drained from one drainage junction box and flowed across the street 83' to another box where it stopped and was collected. 	67				67	Drainage Conveyance System; Street/Curb and Gutter (2 3)		Spilled onto city road, down curb and gutter, and into city storm drainage conveyance system.	Y	33.125	-117.2156							12/21/2023 10:30	See attachment	See attachment	Root Intrusion		Gravity Mainline		Vitrified Clay		63	No impacts. Spill was on street and into storm drain where the line was flushed and the entirety of the spill and wash down water was captured and returned to the sewer system. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		See attached	Adjusted Schedule/Method of Preventive Maintenance; Plan Rehabilitation or Replacement of Sewer		Section of line is to be placed in a CIP for rehab/lining in 2024. 		12/21/2023 12:58	CCTV was used to inspect multiple line segments upstream and downstream of where the blockage was cleared. 63-year-old Vitrified Clay Pipe was found to have roots in multiple locations. Many of the roots were fine at the joints with one tap root found which caused the blockage. As stated above, we have turned over reports and CCTV footage to our engineering department and the pipe will be lined next fiscal year. 		Investigation closed.	12/21/2023 12:58														N/A	Line will be put into a quarterly cleaning schedule until rehabilitation.	See above.	CIPP Liner.	CCTV was used to identify defects with the pipe. Turned over to engineering department and put into CIP for rehabilitation.	See above	See attached Quarterly Enhanced Cleaning List. 	See attached 19.b response.   	Investigation closed.	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	891646	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		02-APR-24	02-APR-24	Monthly Category 3 Spill	3357 North Ledgewood Drive	12/26/2023 03:42	12/26/2023 06:30	12/26/2023 03:42				On Tuesday, December 26, 2023 at 3:42 AM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 3357 North Ledgewood Drive (TG 563-F7). A CWCD crew was immediately dispatched to the incident location and determined that the 6-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 7:30 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 64 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.    The sewer location where the backup occurred will be televised to determine the exact cause and to determine the necessary actions to prevent future incidents at this location.	34.12963	-118.32118	Inside Building or Structure			64	None.	N	None.	0				64	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	It was estimated that approximately 64 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.  	Y	34.12963	-118.32118							12/26/2023 07:30	Volume of a spill contained in a rectangular area. 	Length41feet Width20feet Depth0.125inches0.0104feet  8.54ft364gallons 	Root Intrusion		Gravity Mainline		Vitrified Clay		98	None.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		On Tuesday, December 26, 2023 at 3:42 AM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 3357 North Ledgewood Drive (TG 563-F7). A CWCD crew was immediately dispatched to the incident location and determined that the 6-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 7:30 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 64 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	Inspected Sewer Using CCTV to Determine Cause		Pipeline Is Scheduled For Repair/Replacement. This Pipeline Will Also Be Placed On A Quarterly Maintenance Schedule.		12/26/2023 07:30	On Tuesday, December 26, 2023 at 3:42 AM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 3357 North Ledgewood Drive (TG 563-F7). A CWCD crew was immediately dispatched to the incident location and determined that the 6-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 7:30 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.		On Tuesday, December 26, 2023 at 3:42 AM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 3357 North Ledgewood Drive (TG 563-F7). A CWCD crew was immediately dispatched to the incident location and determined that the 6-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 7:30 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 64 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	12/26/2023 07:30														None At This Time.	Pipeline Is Scheduled For Repair/Replacement. this Pipeline Will Also Be Placed On A Quarterly Maintenance Schedule.	This Pipeline Will Also Be Placed On A Quarterly Maintenance Schedule.	Pipeline Is Scheduled For Repair/Replacement.	Pipeline Is Scheduled For Repair/Replacement. this Pipeline Will Also Be Placed On A Quarterly Maintenance Schedule.	Pipeline Is Scheduled For Repair/Replacement.	Pipeline Is Scheduled For Repair/Replacement. this Pipeline Will Also Be Placed On A Quarterly Maintenance Schedule.	On Tuesday, December 26, 2023 at 3:42 AM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 3357 North Ledgewood Drive (TG 563-F7). A CWCD crew was immediately dispatched to the incident location and determined that the 6-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 7:30 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 64 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	On Tuesday, December 26, 2023 at 3:42 AM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 3357 North Ledgewood Drive (TG 563-F7). A CWCD crew was immediately dispatched to the incident location and determined that the 6-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 7:30 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 64 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	891653	1.1	Certified	Kent Vian	Asst. Deputy Director		03-JAN-24	03-JAN-24	Monthly Category 3 Spill	NOT-40201046051 DENNERY RD & PALM AVE.	12/26/2023 13:57	12/26/2023 14:35	12/26/2023 13:57				SPILL ORIGINATED AT GPS 32�35'00.355/ 117�02'04.892	32.58375	-117.0324	Manhole	N/A	N/A	980	SPILL OCCURED FROM MANHOLE AT ENTRANCE OF STRIP MALL OFF DENNERY RD & PALM AVE.	N	N/A	0				900	Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface	N/A	SPILL FINAL DESTINATION WAS RIGHT OUTSIDE OF STRIP MALL  32�34'59.395N/ 117�02'02.561 W	Y	32.58375	-117.0324							12/26/2023 15:35	VISUAL CALCULATED METHOD	START TIME ESTIMATION IS WHEN CONSUMER CALLS STATION 38 THEN WE RECIEVE THE CALL AND THEN WE RESPOND.	Fats, Oil and Grease (FOG)	N/A	Gravity Mainline	N/A	Polyvinyl Chloride (PVC)	N/A	25	THE SPILL IMPACTED THE CURB AND GUTTER A SMALL SECTION OF LANDSCAPE IN FRONT OF STRIP MALL AND THE STORM DRAIN.	N	Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	SPILL RESPONSE ACTIVITIES INCLUDED RELIEVED, TRACKED FINAL DESTINATION AND RETURNING PORTIN OF THE SPILL TO SEWER SYSTEM CLEANED UP AREA AND STORM DRAIN CCTV MAINS.	Inspected Sewer Using CCTV to Determine Cause	N/A	SPILL CORRECTIONACTION TO ADJUST SCHEDULE PREVETIVE MEASURES.		12/26/2023 15:35	N/A		N/A	12/26/2023 15:35														N/A	N/A	N/A	N/A	N/A	N/A	N/A	SET-UP CONTAINMENT RELIEVED STOPPAGE TRACKED FINAL DESTINATION CLEANED UP AREA AND STORM DRAIN CCTV MAINS.	N/A	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	891656	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		02-APR-24	02-APR-24	Monthly Category 3 Spill	3198 North Lake Hollywood Drive	12/26/2023 11:00	12/26/2023 12:17	12/26/2023 11:00				On Tuesday, December 26, 2023 at 11:00 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 3198 North Lake Hollywood Drive (TG 563-D7). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 12:26 PM. The cause of the blockage was due to a DWP water main break. All necessary clean-up was then performed.	34.132314	-118.344204	Manhole		None.	247	Maintenance Hole Overflowing At 3198 North Lake Hollywood Drive.	Y	City Of Los Angeles Owned Catch Basin.	174				247	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	34.132314  118.344204	Y	34.132314	118.344204							12/26/2023 12:26	Spill flowrate and volume determination based on flowout pickhole or opening    	Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening0.5inches Flowrate per pickole/opening (gpm)1gpm # of pickholes/openings2 Total flowrate (gpm)3gpm Duration of spill (minutes)86minutes Total flow (gallons)247gallons 	Debris-General	DWP water main break	Gravity Mainline		Vitrified Clay		85	It was estimated that approximately 247 gallons of sewage backed out of the sewer as a result of the blockage, of that amount 174 gallons of sewage entered an adjacent City of Los Angeles owned catch basin located at 3450 Barham Boulevard. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		On Tuesday, December 26, 2023 at 11:00 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 3198 North Lake Hollywood Drive (TG 563-D7). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 12:26 PM. The cause of the blockage was due to a DWP water main break. All necessary clean-up was then performed.	Inspected Sewer Using CCTV to Determine Cause		Pipeline Is On A Semi-Annual Maintenance Schedule. A Sewer Repair Is Scheduled.		12/26/2023 12:26	On Tuesday, December 26, 2023 at 11:00 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 3198 North Lake Hollywood Drive (TG 563-D7). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 12:26 PM. The cause of the blockage was due to a DWP water main break. All necessary clean-up was then performed.		A Sewer Repair Is Scheduled.	12/26/2023 12:26														None At This Time.	Pipeline Is On A Semi-Annual Maintenance Schedule. A Sewer Repair Is Scheduled.	Pipeline Is On A Semi-Annual Maintenance Schedule. 	 A Sewer Repair Is Scheduled.	Pipeline Is On A Semi-Annual Maintenance Schedule. A Sewer Repair Is Scheduled.	A Sewer Repair Is Scheduled.	Pipeline Is On A Semi-Annual Maintenance Schedule. A Sewer Repair Is Scheduled.	Pipeline Is On A Semi-Annual Maintenance Schedule. A Sewer Repair Is Scheduled.	A Sewer Repair Is Scheduled.	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	891658	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		17-APR-24	17-APR-24	Monthly Category 3 Spill	1105 South Alvira Street	12/26/2023 13:04	12/26/2023 14:03	12/26/2023 13:04				The initial crew arrived at 2:03 P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.056867	-118.371869	Manhole			88	Sanitary Sewer Overflow.	N						88	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	34.056867  -118.371869	Y	34.056867	-118.371869							12/26/2023 14:31	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.	Spill flowrate and volume determination based on flowout pickhole or opening Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening0.25inches Flowrate per pickole/opening (gpm)1gpm # of pickholes/openings1 Total flowrate (gpm)1gpm Duration of spill (minutes)87minutes Total flow (gallons)88gallons 	Fats, Oil and Grease (FOG)		Gravity Mainline		Concrete		90	On Tuesday, December 26, 2023 at 1:04 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1105 South Alvira Street (TG 633-A3). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 2:31 PM. The cause of the blockage was attributed to Fats, Oil and Grease (FOG). All necessary clean-up was then performed.  It was estimated that approximately 88 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		On Tuesday, December 26, 2023 at 1:04 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1105 South Alvira Street (TG 633-A3). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 2:31 PM. The cause of the blockage was attributed to Fats, Oil and Grease (FOG). All necessary clean-up was then performed.  It was estimated that approximately 88 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	Inspected Sewer Using CCTV to Determine Cause		As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow CCTV inspection revealed some defects that will be repaired by an Emergency On-Call Contractor.  In an effort to prevent future incidents at this location the sewer will also be placed on a quarterly cleaning schedule.		12/26/2023 14:31	On Tuesday, December 26, 2023 at 1:04 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1105 South Alvira Street (TG 633-A3). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 2:31 PM. The cause of the blockage was attributed to Fats, Oil and Grease (FOG). All necessary clean-up was then performed.  It was estimated that approximately 88 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   		None At This Time.	12/26/2023 14:31														None At This Time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow CCTV inspection revealed some defects that will be repaired by an Emergency On-Call Contractor.  In an effort to prevent future incidents at this location the sewer will also be placed on a quarterly cleaning schedule.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow CCTV inspection revealed some defects that will be repaired by an Emergency On-Call Contractor.  In an effort to prevent future incidents at this location the sewer will also be placed on a quarterly cleaning schedule.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow CCTV inspection revealed some defects that will be repaired by an Emergency On-Call Contractor.  In an effort to prevent future incidents at this location the sewer will also be placed on a quarterly cleaning schedule.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow CCTV inspection revealed some defects that will be repaired by an Emergency On-Call Contractor.  In an effort to prevent future incidents at this location the sewer will also be placed on a quarterly cleaning schedule.	Not At This Time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow CCTV inspection revealed some defects that will be repaired by an Emergency On-Call Contractor.  In an effort to prevent future incidents at this location the sewer will also be placed on a quarterly cleaning schedule.	On Tuesday, December 26, 2023 at 1:04 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1105 South Alvira Street (TG 633-A3). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 2:31 PM. The cause of the blockage was attributed to Fats, Oil and Grease (FOG). All necessary clean-up was then performed.  It was estimated that approximately 88 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	None At This Time.	
1	1SSO10030	Active	Fort Jones City CS	Fort Jones City	891659	1.2	Certified	Everett Hullquist	Public Works Supervisor		27-DEC-23	27-DEC-23	Monthly Category 3 Spill	30 Sterling Street	12/26/2023 10:30	12/26/2023 10:40	12/25/2023 22:00				Located on Sterling Street, the sewer main became blocked due to root intrusion and backed up out of a cleanout at a nearby house. It caused a puddle to form on the ground approximately 11feet long and 5 feet wide.	41.60741	-122.84037	Lateral Clean Out (Private)			750	The spill caused a puddle to form about 11 feet long and 5 feet wide.	N		200				200	Unpaved Surface		The spill was contained at the private lateral cleanout and was cleaned up. It made a spot on the ground 11feet by 5 feet wide.										12/26/2023 10:50	There are about 13 houses above that point in the sewer system. It was spilling for estimated 12 hours mostly at night. I estimated each house was using an average of 5 gallons an hour. 13 houses X 12 hours X 5 gal/hr = 780 gallons spilled. 	I used the number of houses above the spill location and an average of 5 gallons an hour spilling out with the time frame of 12 hours.	Root Intrusion		Gravity Mainline		Concrete		50	It caused a puddle to form about 11feet by 5 feet wide next to a residence. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		We immediately used our flusher truck to flush out the mainline to clear the blockage. We then went and got our vacuum trailer and sucked up everything that had spilled. We sprayed the area with a mixture of water and bleach.	Added Sewer to Preventive Maintenance Program		We plan to start flushing this line more often and checking the manhole more often to see if it is started to plug up.		12/27/2023 09:45	The Town was notified of a spill occuring in the morning of 12/26/2023. An operator arrived and saw sewage coming out of a nearby lateral cleanout. He got the flusher truck and flushed the mainline, clearing the blockage. He then got the vacuum trailer and cleaned up the mess/ disinfected it.		N/A	12/27/2023 10:14														N/A	We could use some grant money to replace our aging infrastructure.	Monthly manhole checks/ yearly cleaning	N/A	N/A	The Town has undertaken a few sewer line replacement projects in the last few years, but none is planned for this particular stretch of main at this time.	N/A	N/A	N/A	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District	891660	1.2	Certified	John J Hough	San Dist M&O Superintendent	27-DEC-23	04-JAN-24	04-JAN-24	Category 1 Spill	336733	12/21/2023 12:28	12/21/2023 13:05	12/20/2023 17:00		-		See Attached Spill Map	38.5545	-121.2258	Manhole			780	See Attached Spill Map	Y	See Attached Spill Map	634	0	See Attached Spill Map	141	684	Drainage Conveyance System that discharges to surface water; Other (specify below); Paved Surface; Street/Curb and Gutter (2 3); Surface Water	Drainage Pond tributary to Morrison Creek	see attached spill map	Y	38.5545	-121.2258							12/21/2023 15:30	See attached Spill Volume Estimation.	See attached Spill Volume Estimation.	Damage by Others Not Related to Collection System Construction/Maintenance	New residential development. Developer forgot to remove the temporary plug to the sewer system before moving in residents.	Gravity Mainline		Vitrified Clay		1	See Attached Description of Events.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified the City of Rancho Cordova Public Works.	See Attached Description of Events.	Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected the main line with CCTV on December 22, 2023. The main line is in good condition and approximately one year old. Based on the findings, no action is needed at this time.	None	12/21/2023 23:15	See Attached Description of Events.	N			Morrison Creek	Other (specify below); Stream/Creek	Drainage Pond tributary to Morrison Creek	Drainage pond tributary to Morrison Creek.	No observed impacts to aquatic life.	Other (specify below)	Health warning sign was posted at the drainage pond.	N/A	0	N	N												
5S	5SSO11082	Active	West Sacramento CS	West Sacramento City	891661	1.1	Certified	Robert Santos	Superintendent		27-DEC-23	27-DEC-23	Monthly Category 3 Spill	1501 West Capitol Ave.	11/20/2023 11:16	11/20/2023 11:25	11/20/2023 11:30				Spill originated at City cleanout.	38.58023	-121.52785	Lower Lateral (Public)			93	pics of the spill area	N						93	Street/Curb and Gutter (2 3)		from the clean out over the sidewalk and down the gutter.	Y	38.58023	-121.52785							11/20/2023 11:30	the distance the spill flowed in the gutter.	Based on time of call, arrival, and when stopped.	Debris-wipes/Non-disposables		Lower Lateral		Vitrified Clay		55	Little to no impact	N	Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		arrived on site, contained spill with organic debris, and cleared blocked line with hand rods.	Inspected Sewer Using CCTV to Determine Cause		Spoke with residents and advised to stop flushing wipes.		11/20/2023 12:30	Based on what we pulled out we found wipes to be the cause of the blockage.		N/A	11/20/2023 12:30														N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	
5S	5SSO11082	Active	West Sacramento CS	West Sacramento City	891662	1.1	Certified	Robert Santos	Superintendent		27-DEC-23	27-DEC-23	Monthly Category 3 Spill	1501 West Capitol Ave.	09/05/2023 10:36	09/05/2023 10:45	09/05/2023 10:36				appeared at city clean out.	38.58023	-121.52785	Lateral Clean Out (Public); Lower Lateral (Public)			91	spill flowed down gutter for approx. 220 feet	N						93	Street/Curb and Gutter (2 3)		spill destination was the curb and gutter	Y	38.58023	-121.52785							11/20/2023 11:30	L x W x D x 7.48	Based on when we received call.	Debris-wipes/Non-disposables		Lower Lateral		Vitrified Clay		55	Little to no impact	N	Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Cleared lateral with hand rods, used Vac-Con to clean and recover spill.	Inspected Sewer Using CCTV to Determine Cause		spoke to property owner, advised to stop using wipes.		09/05/2023 12:30	We found that wipes caused the spill. CCTV service, service in acceptable shape		N/A	09/05/2023 10:36														N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	891664	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	27-DEC-23	08-JAN-24	08-JAN-24	Category 1 Spill	6690 Bancroft Ave. Oakland Ca 	12/25/2023 14:20	12/25/2023 15:30	12/25/2023 13:45		-		Gravity line plugged with rags and wipes causing an SSO. Sewage spilled onto the curb and gutter area into a storm inlet that leads to Aroyo Viejo Canal.	37.76959	-122.1807	Manhole		Manhole downstream had sewage leaking into an abandoned field gated off.	821	Gravity mainline plugged from rags and wipes. There were two appearance point in this spill. One manhole leaked and sewage went to storm drain and the other manhole leaked into soil in an abandoned field.	Y	Sewage went into storm inlet and reached Arroyo Viejo Canal off of 73rd Ave. & International. Canal was posted.	29	571	Sewage from SSO reached storm inlet to Arroyo Viejo Canal.	600	29	Street/Curb and Gutter (2 3); Surface Water	Gravity mainline plugged from rags and wipes. There were two appearance point in this spill. One manhole leaked and sewage went to storm drain and the other manhole leaked into soil in an abandoned field.	Gravity mainline plugged from rags and wipes. There were two appearance point in this spill. One manhole leaked and sewage went to storm drain and the other manhole leaked into soil in an abandoned field.	Y	37.76959	-122.1807							12/25/2023 15:45	 Shop - L 5' x W 3' x D .02 x 7.48 = 2.25 gallons.  Manhole in the Field- L 25' X W 25' X D .25 X 7.48 X 1875 = 219 gallons.  Gutter Line - L 100' X W .50 X D .08 X 7.48 Gallons = 29 gallons   Recovered.  Manhole=120 Min X 5 GPM = 600 gallons spilled into Arroyo Viejo Canal.	Methodology was based the on the eyewitness from a citizen in a body shop. The backup started in the Bodyshop.	Debris-Rags; Debris-wipes/Non-disposables		Gravity Mainline		Vitrified Clay		90	None.	N	Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Staff washed down curb and gutter area. Staff vacuumed and cleaned area in the stree	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Line was paced on our preventative maintenance schedule.	Line was paced on our preventative maintenance schedule.	12/25/2023 17:45	Line is scheduled for CCTV inspection to check for any other obstructions.	N			Arroyo Viejo Creek	Other (specify below)	Creek.	Creek.	None.	Other (specify below)	None.	N/A	0	Y	N												
4	4SSO11365	Active	Unincorporated County Area CSMD South/County Sanitation District CS	Los Angeles Cnty DPW	891675	1.3	Certified	Robert Swartz	Sr. CE	28-DEC-23	11-JAN-24	11-JAN-24	Category 1 Spill	2305-0262 (18967 Labin Court, Rowland Heights - Unincorporated County Area)	12/22/2023 13:52	12/22/2023 14:15	12/22/2023 12:37	12/22/2023 15:26	23-7822		CSMD Map Sheet No. 2305 Manhole No. 262 MMS No. 8607620 Manhole No. 262 was overflowing.	33.99188	-117.88962	Manhole	Manhole No. 262		12000	Sewage was flowing from Manhole No. 262 onto the street.  A portion of the sewage spill entered a storm drain located at 18888 Labin Court.	Y	A portion of the sewage spill entered a storm drain located at 18888 Labin Court.	0	10000	A portion of the sewage spill entered a storm drain located at 18888 Labin Court, which leads to PD 1732, MTD 0498, San Jose Creek, San Jose Creek - Thompson Crk to U/S San Gabriel River, San Gabriel River @ Whittier Narrows Dam, San Gabriel River, and Alamitos Bay.	10000	2000	Drainage Conveyance System that discharges to surface water; Other (specify below); Street/Curb and Gutter (2 3)	Separate storm drains PD 1732, MTD 0498	A portion of the sewage spill entered a storm drain located at 18888 Labin Court, which leads to PD 1732, MTD 0498, San Jose Creek, San Jose Creek -  to U/S San Gabriel River, San Gabriel River @ Whittier Narrows Dam, San Gabriel River, and Alamitos Bay.	Y	33.99225	117.89116							12/22/2023 14:40	CWEA SSCSC Manhole Gauge Visual or Eyeball Method	The start time is obtained from the reporting party, the end time is when the crew clears the obstructions, and the overflow stops.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		35	N/A	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Upon arrival, Manhole No. 262 was found overflowing.  We set up containment at the 18888 Labin Court storm drain entry point.  Hydro jet equipment was utilized to clear the mainline grease blockage. The area was thoroughly cleaned.  All required agencies were notified.	Other (specify below)	Will inspect sewer using CCTV to determine if further actions are needed. 	Will inspect sewer using CCTV to determine if further actions are needed. 	N/A	12/22/2023 16:45	Will inspect sewer using CCTV to determine if further actions are needed. 	Y	Will inspect sewer using CCTV to determine if further actions are needed. 	02/22/2024 12:00	San Jose Creek - to U/S San Gabriel River, San Gabriel River @ Whittier Narrows Dam, San Gabriel River, and Alamitos Bay	Ocean; Other (specify below); River	San Jose Creek -to U/S San Gabriel River, San Gabriel River @ Whittier Narrows Dam, San Gabriel River, and Alamitos Bay	A portion of the sewage spill entered a storm drain located at 18888 Labin Court, which leads to PD 1732, MTD 0498, San Jose Creek, San Jose Creek - to U/S San Gabriel River, San Gabriel River @ Whittier Narrows Dam, San Gabriel River, and Alamitos Bay.	No impact.	Other (specify below)	No impact.	Los Angeles County Flood Control District, Orange County Public Health	0	N	N											Will inspect sewer using CCTV to determine if further actions are needed. 	
8	8SSO10560	Active	Riverside City CS	Riverside City	891678	1.1	Certified	Kevin Street	Wastewater Operations Manager		16-APR-24	16-APR-24	Monthly Category 3 Spill	Magnolia & Jurupa Avenue	12/24/2023 11:48	12/24/2023 12:45	12/24/2023 11:47				SSO out of manhole COL-MWS-3012712 caused by plywood with rope attached inside the manhole catching rags and grease creating a blockage.	33.96095	117.39099	Manhole			982	Sewer water was trickling out of the pick holes out of manhole (COL-MWS-3012712) cover, spilled on street and contained in curb/gutter.	N						982	Street/Curb and Gutter (2 3)		Spill was on street and contained in curb/gutter.	Y	33.96095	117.39099							12/24/2023 14:04	Pick and Vent Hole Estimation Chart	Estimated flows thru Manhole Cover Vent Holes and Pick Holes for SSO estimating.	Debris from Construction		Gravity Mainline		Vitrified Clay		80	Spill on street and contained on curb/gutter. Storm drains not affected.	N	Cleaned Up (specify below)		Crew placed pig absorbents to block flow at catch basin. Stopped any flow going to RCP pipe 8 . Cleared blockage and flushed all affected areas. Set-up vactor at catch basin of southside of Magnolia/Jurupa and vactored up all sewage and debris from catch basin.	Other (specify below)	Removed blockage and restored flow. cleaned and sanitized the affected areas.	Removed plywood with rope and vactored up debris.		12/24/2023 14:04	Spill was caused by a contractor's plywood with rope attached left in side the manhole causing the rags/grease to create a blockage.		n/a	12/24/2023 14:04														n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	891679	1.1	Ready to Certify						Monthly Category 3 Spill	537 Mandalay Blvd.	12/25/2023 10:05	12/25/2023 11:00	12/25/2023 09:00				Root infiltration in city main sewer caused SSO from a cleanout. 	37.84224	-122.23258	Gravity Mainline			309	Root infiltration in city main sewer caused SSO from a cleanout at 537 Mandalay Blvd. Spill went into neighbors patio and planter box.	N						287	Paved Surface		Root infiltration in city main sewer caused SSO from a cleanout at 537 Mandalay Blvd. Spill went into neighbors patio and planter box. Did full clean up.	Y	37.84224	-122.23258							12/25/2023 15:00	Patio - 60' L x 8' W x .08' D x 7.48 = 287 gal Driveway - 5' L x 3' W x .50' D x 7.48 x .1875 = 10 gal Planter Box - 6' L x 3' W x .50' D x 7.48 x .1875 = 12 gal                                                    Total gallons = 309 gallons                                                    Gallons recovered = 287 gallons	Start was time was based on my arrival to the spill and end time was established by when staff opened the sewer pipe.	Root Intrusion		Gravity Mainline		Polyvinyl Chloride (PVC)		10	Root infiltration in city main sewer caused SSO from a cleanout at 537 Mandalay Blvd. Spill went into neighbors patio and planter box. Did full clean up.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Staff washed down spill from patio and vacuumed portion of the spill into hydro truck to return to sewer system.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Add to sewer preventative maintenance program.		12/25/2023 11:28	Staff cleaned line segment thoroughly. We used push camera to locate blockage. Root infiltration found and cleaned. Main sewer is flowing at this time.		Yes. Need to televise the pipe for further assestment.	12/27/2023 11:29														N/A	Add to sewer preventative maintenance program.	Yes. Add to sewer preventative maintenance program.	N/A	CCTV main sewer line for further assessment.	N/A	Placed impacted sewer line into a three month preventative maintenance program.	Placed impacted sewer line into a three month preventative maintenance program.	Yes. Need to televise the pipe for further assestment.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	891680	1.1	Certified	Ameal McLaurin	Sewer Supervisor 2		08-JAN-24	08-JAN-24	Monthly Category 3 Spill	537 Mandalay Blvd.	12/25/2023 10:05	12/25/2023 11:00	12/25/2023 09:00				Root infiltration in city main sewer caused SSO from a cleanout. 	37.84224	-122.23258	Gravity Mainline; Lateral Clean Out (Private)			309	Root infiltration in city main sewer caused SSO from a cleanout at 537 Mandalay Blvd. Spill went into neighbors patio and planter box.	N						287	Paved Surface	Root infiltration in city main sewer caused SSO from a cleanout at 537 Mandalay Blvd. Spill went into neighbors patio and planter box.	Root infiltration in city main sewer caused SSO from a cleanout at 537 Mandalay Blvd. Spill went into neighbors patio and planter box. Did full clean up.		37.84224	-122.23258							12/25/2023 15:00	Patio - 60' L x 8' W x .08' D x 7.48 = 287 gal Driveway - 5' L x 3' W x .50' D x 7.48 x .1875 = 10 gal Planter Box - 6' L x 3' W x .50' D x 7.48 x .1875 = 12 gal                                                    Total gallons = 309 gallons                                                    Gallons recovered = 287 gallons	Start was time was based on my arrival to the spill and end time was established by when staff opened the sewer pipe.	Root Intrusion		Gravity Mainline		Polyvinyl Chloride (PVC)		10	Root infiltration in city main sewer caused SSO from a cleanout at 537 Mandalay Blvd. Spill went into neighbors patio and planter box. Did full clean up.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Staff washed down spill from patio and vacuumed portion of the spill into hydro truck to return to sewer system.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Add to sewer preventative maintenance program.		12/25/2023 11:28	Staff cleaned line segment thoroughly. We used push camera to locate blockage. Root infiltration found and cleaned. Main sewer is flowing at this time.		Yes. Need to televise the pipe for further assestment.	12/27/2023 11:29														N/A	Add to sewer preventative maintenance program.	Yes. Add to sewer preventative maintenance program.	N/A	CCTV main sewer line for further assessment.	N/A	Placed impacted sewer line into a three month preventative maintenance program.	Placed impacted sewer line into a three month preventative maintenance program.	Yes. Need to televise the pipe for further assestment.	
2	2SSO10109	Active	Concord City CS	Concord City	891682	1.6	Certified	Pernise Seumanutusa	Public Works Supervisor		02-JAN-24	02-JAN-24	Monthly Category 3 Spill	Treat Blvd x Citrus Ave	12/27/2023 11:06	12/27/2023 11:09	12/27/2023 11:04				Manhole	37.94487	-122.01558	Manhole			80	See Attachment	N						80	Paved Surface; Street/Curb and Gutter (2 3)		Pavement										12/27/2023 11:14	Eye ball, duration of flow	Same above	Debris-Rags		Gravity Mainline		Vitrified Clay		80	none	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		Same above	Adjusted Schedule/Method of Preventive Maintenance		N/A		12/27/2023 11:46	Due to rags in mainline		N/A	12/27/2023 11:46														N/A	N/A	Adjusted Schedule	N/A	N/A	N/A	N/A	N/A	N/A	
2	2SSO10163	Active	Oro Loma Sd CS	Oro Loma Sanitary District	891594	2.1	Work In Progress	Christopher Brown	Collection System Manager	20-DEC-23			Category 1 Spill	16514 Ehle Street	12/16/2023 19:03	12/16/2023 19:24	12/16/2023 18:30	12/16/2023 20:56	23-7691		A piece of construction debris from an unknown source upstream from the failure point lodged in the sewer main creating a partial blockage which began holding rags and paper. This led to the M/H near 16514 Ehle Street to surcharge and periodically spill.  Crews determined the spill rate to be 2.5 gallons per minute by using comparison photos carried in the spill response field packets carried in all vehicles. This was multiplied by the duration of 146 minutes for a total of 315 gallons.	37.6984	-122.10486	Manhole			315	The spill traveled to the curb and gutter adjacent to the appearance point and traveled 136' downhill to the nearest storm drain inlet. Sand bags and mats were placed at the drain inlet to help minimize the flow into the storm drain. The majority of the spill had already entered the storm drain upon arrival. Crews jetted and vacuumed the storm drain piping and catch basins until the piping entered a 42  storm pipe that had existing flow. At this point crews were not able to get ahead of the spill for containment purposes. Crews determined that only 30 gallons minus washdown water was recovered.	Y	The conveyance system consisted of 12  to 24   pipe and catch basins leading to a 42  pipe 640' away. The 42  pipe carries flow all year even during dry periods due to its location on the hill. Crews returned the following day to Hydro jet, washdown and vacuum the 640' of storm drain piping and drain inlets that were accessible.	30	285	The spill ultimately worked its way through the storm drain system to the flood control channel near Ashland Avenue and E 14th Street in San Leandro.	285	30	Drainage Conveyance System		The spill traveled to the curb and gutter adjacent to the appearance point and traveled 136' downhill to the nearest storm drain inlet. Sand bags and mats were placed at the drain inlet to help minimize the flow into the storm drain. The majority of the spill had already entered the storm drain upon arrival. Crews jetted and vacuumed the storm drain piping and catch basins until the piping entered a 42  storm pipe that had existing flow. At this point crews were not able to get ahead of the spill for containment purposes. Crews determined that only 30 gallons minus washdown water was recovered.	Y	37.69729	-122.10682							12/16/2023 20:43	A piece of construction debris from an unknown source upstream from the failure point lodged in the sewer main creating a partial blockage which began holding rags and paper. This led to the M/H near 16514 Ehle Street to surcharge and periodically spill.  Crews determined the spill rate to be 2.5 gallons per minute by using comparison photos carried in the spill response field packets carried in all vehicles. This was multiplied by the spill duration of 133 minutes for a total of 333 gallons. It was estimated that only 30 gallons was recovered. This was estimated based on the wetted area of the curb, gutter, and storm drain inlets.	A resident stated that the spill was observed at 18:30 as they were walking to their car, while a different resident stated it was dry at 15:00.  18:30 was selected as the start time as no other proof was available. The end time of 20:35 was determined when the responding crew broke the plug and ended the spill.	Other (specify below)	A small piece of mortar or concrete from an unidentifiable source upstream.	Gravity Mainline		Vitrified Clay		71	The spill traveled to the curb and gutter adjacent to the appearance point and traveled 136' downhill to the nearest storm drain inlet. Sand bags and mats were placed at the drain inlet to help minimize the flow into the storm drain. The majority of the spill had already entered the storm drain upon arrival. Crews jetted and vacuumed the storm drain piping and catch basins until the piping entered a 42  storm pipe that had existing flow. At this point crews were not able to get ahead of the spill for containment purposes. Crews determined that only 30 gallons minus washdown water was recovered.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Upon arrival and verification of the spill, sand bags, absorbent mats, and pigs were placed at the nearby drain inlet to block additional flow from entering the storm drain inlet. A Hydro Jetter and Vacuum truck arrived shortly after. The Hydro Jetter set up to relieve the stoppage while the vacuum truck set up and began vacuuming at the near by drain inlet. The Hydro Jetter relieved the stoppage while the vacuum truck recovered the remaining spill and washdown water before it entered the drain inlet.  Crews returned the following day to Hydro jet, washdown and vacuum the 640' of storm drain piping and drain inlets that were accessible.  	Inspected Sewer Using CCTV to Determine Cause		There are no observed defects at the failure location. There is no recommended action scheduled at this time.	There are no observed defects at the failure location. There is no recommended action scheduled at this time.	12/18/2023 10:30	A small piece of mortar or concrete from an unknown source upstream of the failure point caused paper/rags to accumulate behind it causing a partial blockage that led to the spill. The surrounding upstream were televised in an effort to determine the source. The upstream manhole were visually inspected to determine if the debris had come from a district asset. Permit records for lateral repairs were reviewed to see if there had been any recent work had been performed on or near the sewer mains. All efforts were inconclusive in determining where the debris may have came from.	N			Alameda County Flood Control Channel	Other (specify below)	The spill entered the concrete flood control channel which runs through San Leandro to San Francisco Bay	The spill entered the concrete flood control channel which runs through San Leandro to San Francisco Bay.	There were no observed impacts on aquatic life.	Other (specify below)	There were no closures or restrictions. 	There were no closures or restrictions.	0	N	N												
4	4SSO11423	Active	Long Beach Water Dept. CS (SSO program)	Long Beach City, Water Dept	891687	1.2	Certified	Jennifer Rojas	Senior Director 		29-JAN-24	29-JAN-24	Monthly Category 3 Spill	1240 N. Loma Vista Dr.	12/02/2023 13:50	12/02/2023 14:04	12/02/2023 08:00				The Spill originated at a private 4  clean-out at 1240 N. Loma Vista Dr.	33.78152	-118.19754	Lateral Clean Out (Private); Manhole		City Sewer Manhole 	390	The spill originated from a private 4  clean-out at 1240 N. Loma Vista Dr. and a sewer manhole G12-SMH-054. It then traveled along the street curb and gutter until it reached the LACFCD storm drain catch basin. The spill was fully contained in the catch basin and did not reach the storm drain pipe because the catch basin outlet was full of debris. Map Attached.	Y	LACFCD (Los Angeles County Flood Control District) owns and operates a stormwater conveyance system. This system includes a gutter collection, vault, and storm drain pipe.	370				390	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		A spill occurred, leading to the release of wastewater onto the street curb and gutter. The spill reached the LACFCD storm drain catch basin. Sandbags were strategically positioned to contain the spill at the street curb and gutter. However, flow in the catch basin was halted due to debris in the catch basin vault.	Y	33.78155	-118.19764							12/02/2023 14:05	We estimated the total spill volume based on the sequence of events reported by the resident. According to their observation, the spill started at 8:00 am, and the manhole began seeping at 11:30 am. Unfortunately, we could not determine the spill rate due to the intermittent low leaking volume. As a result, we relied on the amount of sewage our contractor, Ocean Blue Environmental, recovered to calculate the spill volume.	The Crew conducted a field investigation. The private 4  clean-out had been slowly spilling since 8:00 am, as mentioned by a resident and the city manhole started to overflow slowly at 11:30 am. Spill end time was noted when the stoppage was removed. (ragging)	Debris-General; Debris-Rags		Gravity Mainline		Vitrified Clay		108	No Impact on the residents in the area. Our Crews Promptly addressed the issue, effectively containing and recovering the affected area.	N	Cleaned Up (specify below); Property Owner Notified; Returned All Spill to Sanitary Sewer System		1. Spill Containment: Sewage overflowed from the system at the Private 4  clean-out and the City sewer manhole, resulting in approximately 390 gallons of sewage flowing into the LACDF storm drain catch basin along the street curb and gutter. Measures were taken to contain the spill and prevent further spread. 2. Cleanup Efforts: Ocean Blue Environmental initiated cleanup operations for the spill. Using a pressure washer and vacuum truck, they successfully recovered the 390 gallons of sewage from the street curb and gutter as well as the LACFCD storm drain catch basin. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		The pipe segment has undergone thorough hydro-jetting. It has also been added to our list of hot spots, which will be hydro-jetted every 90 days. We will continue our preventive maintenance program and ensure that our staff follows proper cleaning practices.		12/02/2023 17:50	On 12/6/2023, a post CCTV inspection was conducted to investigate the cause of the mainline stoppage. The inspection revealed that there is a sag in the mainline, which allowed rags to block the pipe segment. To resolve the issue, a thorough hydro-jetting process was carried out on the pipe segment to remove the accumulated debris and ensure smooth flow of wastewater. Additionally, this pipe segment will be added to our 90-day repeat book.		Not an ongoing investigation.	12/06/2023 09:30														The Long Beach Health Department was notified and arrived at the scene to oversee the cleanup of the contaminated area.	We have a 2-year Preventive Sewer Maintenance Program in place to ensure the long-term health and functionality of our sewer system. As part of this program, the segment was added to our hot spot repeat book for additional cleaning.	This pipe segment will be added to our list of hot spots, and it will be hydro-jetted on a 90-day rotation to prevent blockages, backups, and other sewer-related issues.	There is no planned rehabilitation or replacement of this segment.	CCTV inspections were conducted to identify the cause and precise location of the rag blockage. Once the cause and location were determined, appropriate measures were taken to ensure a thorough cleaning of the blockage.	No capital improvement is planned at this time.	Segment will be added to our 90-day repeat books. 	We will continue following our sewer emergency response plan to respond, provide a thorough clean-up of any affected areas, and also provide repairs as needed.	Not an ongoing investigation.	
2	2SSO10179	Active	San Jose City CS	San Jose City	891690	1.2	Amended	Alberto Gaxiola	Associate Engineer		28-DEC-23	28-DEC-23	Monthly Category 3 Spill	2409 Blanding Ave	11/14/2023 12:51	11/14/2023 13:06	11/14/2023 11:29				The reporting party from 2409 Blanding Ave noticed the sewage spilling into the street. The spill originated from a single sanitary sewer manhole and traveled along the paved street into the curb and gutter. The spill then traveled along the curb and gutter before entering the MS4 through a storm drain conveyance system inlet. A picture file of the spill appearance point is attached in the certification named  2409_BlandingAve_SpillAppearancePoint .	37.308368	-121.797214	Manhole			195	The spill originated from a single sanitary sewer manhole and traveled along the paved street into the curb and gutter. The spill then traveled along the curb and gutter before entering the MS4 through a storm drain conveyance system inlet. While City Crews responded to the overflow, a Crew was able to stop and contain the spill with sandbags in a downstream storm drain conveyance system manhole. Map files of the extent and boundaries are attached in the certification named  Blanding_Boundary  and  Blanding_SpillPath .	Y	The spill then traveled along the curb and gutter before entering the MS4 through a nearby storm drain conveyance system inlet. While City Crews responded to the overflow, a Crew was able to stop and contain the spill with sandbags in a downstream storm drain conveyance system manhole. Map files of the extent and boundaries are attached in the certification named  Blanding_Boundary  and  Blanding_SpillPath .	134				195	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		The spill (sewage) traveled along the street curb and gutter from the manhole at the intersection of Blanding Ave and Dahill Ct (spill appearance point). The manhole is identified in 1.d. and 1.e. The spill reached and traveled along the curb and gutter, then entered City's storm inlet and drainage system. The location of the storm drain inlet is identified in 1.f. and 1.g. The spill was stopped and contained in a downstream storm drain conveyance system manhole. The storm manhole is identified in 1.h. and 1.i.	Y	37.308375114421	-121.797191035812	37.308242458642	-121.798117822863	37.309875816264	-121.801357582771			11/14/2023 13:30	The spill measurements were calculated based on measurements provided by the Field/Responding Crews and photos/videos. Engineering staff calculated the spill on land and within the MS4 (storm drain conveyance system) by converting the spill into three dimensional shapes and applying the provided measurements. 	The spill measurements were calculated based on measurements provided by the Field/Responding Crews and photos/videos. Engineering staff calculated the spill on land and within the MS4 (storm drain conveyance system) by converting the spill into three dimensional shapes and applying the provided measurements. Key assumptions that were made included assuming average/uniform depths and widths of sewage for certain locations of the spill.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		48	The spill impact required cleanup of the street curb and gutter in front of  the Blanding Ave and Dahill Ct. In addition, it was estimated that 134 gallons of raw sewage was contained in the municipal storm sewer system. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		While City Crews responded to the overflow, a Crew was able to stop and contain the spill with sandbags in a downstream storm drain conveyance system manhole. Once the spill was contained, Crew's onsite cleared the blockage in the gravity mainline. The spill impact required cleanup of the street curb and gutter in front of  the Blanding Ave and Dahill Ct. In addition, it was estimated that 134 gallons of raw sewage reached the municipal storm sewer system. Crews flushed the affected storm drain conveyance system while maintaining a sandbag containment. A Vacuum truck was stationed at the sandbag containment in the storm drain conveyance system manhole to recover all of the sewage and induced water.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		The City has planned the following corrective actions for this sanitary sewer overflow:  1. Adjust the plugged pipe segment operation and maintenance cleaning cycle from 6 years to 3 years. 2. Re-video the plugged sanitary pipe segment along with the upstream and downstream segments in 12 months. 3. Add the nearby residential area to the FOG outreach flyer program and distribute flyers		11/14/2023 15:30	The reporting party from 2409 Blanding Ave noticed the sewage spilling into the street. The spill originated from a single sanitary sewer manhole and traveled along the paved street into the curb and gutter. The spill then traveled along the curb and gutter before entering the MS4 through a storm drain conveyance system inlet. While City Crews responded to the overflow, a Crew was able to stop and contain the spill with sandbags in a downstream storm drain conveyance system manhole. Once the spill was contained, Crew's onsite cleared the blockage in the gravity mainline. The spill impact required cleanup of the street curb and gutter in front of  the Blanding Ave and Dahill Ct. In addition, Crews flushed the affected storm drain conveyance system while maintaining a sandbag containment. A Vacuum truck was stationed at the sandbag containment in the storm drain conveyance system manhole to recover 		NA - investigation efforts have concluded.	12/13/2023 15:00														NA - no enforcement action was applicable to this spill.	Adjusted pipe segment operation and maintenance cleaning cycle from 6 years to 3 years. In addition, the nearby residential area was added to the FOG outreach flyer program.	Adjusted pipe segment operation and maintenance cleaning cycle from 6 years to 3 years.	NA - no structural or operation and maintenance concerns were identified during post CCTV. 	A post CCTV of the pipe segment which was plugged with grease (FOG) that caused the SSO and nearby pipe segments were inspected on 11/15/2023. 	NA - no Capitol Improvement necessary	Adjusted pipe segment operation and maintenance cleaning cycle from 6 years to 3 years. A file named  BlandingAve_O&M_Update  is attached in this certification which documents the cleaning frequency update.	NA - no modifications were made to the spill response activities or standard response procedures.	NA - investigation efforts have concluded.	
2	2SSO10179	Active	San Jose City CS	San Jose City	891691	1.1	Certified	Alberto Gaxiola	Associate Engineer		29-DEC-23	29-DEC-23	Monthly Category 3 Spill	70 Gebhart Ave	11/25/2023 12:15	11/25/2023 12:21	11/25/2023 11:45				The reporting party from 70 Gebhart Ave observed sewage spilling from a manhole and 2 nearby private lateral cleanouts. A second reporting party along a nearby street also identified sewage coming from a manhole near 80 Elodie Wy.	37.362267	-121.842014	Lateral Clean Out (Private); Manhole	There were a total of 4 spill appearance points: 2 sanitary sewer manhole and 2 private lateral cleanouts. The 2 overflowing private lateral cleanouts and 1 of the overflowing manholes were identified near 70 Gebhart Ave. The 4th appearance point (manhole) was identified nearby next to 80 Elodie Wy. 	There were a total of 4 spill appearance points: 2 sanitary sewer manhole and 2 private lateral cleanouts.	71	There were a total of 4 spill appearance points: 2 sanitary sewer manhole and 2 private lateral cleanouts. The 2 overflowing private lateral cleanouts and 1 of the overflowing manholes were identified near 70 Gebhart Ave. The 4th appearance point (manhole) was identified nearby next to 80 Elodie Wy. The spill along both Elodie Wy and Gebhart Ave traveled along the paved surface, curb and gutter, and into the City's storm drain conveyance system (MS4). Pictures of the spill appearance points are included in the certification attachments under  AppearancePoint1_Manhole ,  AppearancePoint2_Manhole ,  AppearancePoint3_Cleanout , and  AppearancePoint4_Cleanout . In addition, a spill boundary map named  Gebhart_SpillBoundary  was added to the certification attachments. 	Y	Upon arrival, the responding City Crew observed that the overflow had stopped and cleared on it's own. There was evidence of the spill reaching the curb/gutter and a nearby storm drain inlet along both Gebhart Ave and Elodie Wy. Both inlets along Gebhart Ave and Elodie had minimal sewage/spill observed and was contained before reaching the nearest downstream storm drain manhole at both locations. Pictures of the drainage entry points were added to the certification attachments named  StormDrainInlet_EntryLocation1_Gebhart  and  StormDrainInlet_EntryLocation1_Elodie .	15				71	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		There were a total of 4 spill appearance points: 2 sanitary sewer manhole and 2 private lateral cleanouts. The 2 overflowing private lateral cleanouts and 1 of the overflowing manholes were identified near 70 Gebhart Ave. The 4th appearance point (manhole) was identified nearby next to 80 Elodie Wy. Spill appearance point #1 (manhole) is identified in 11.d and 11.e,  spill appearance point #2 (manhole) is identified in 11.f and 11.g,  spill appearance point #3 (cleanout) is identified in 11.h and 11.i, and spill appearance point #4 (cleanout) is identified in 11.j and. 11.k.  Both affecting storm drain inlets along Gebhart Ave and Elodie had minimal sewage/spill observed and was contained before reaching the nearest downstream storm drain manhole at both locations.	Y	37.362267	-121.842014	37.362387	-121.841393	37.362296	-121.841996	37.361707	-121.841443	11/25/2023 12:55	The spill measurements were calculated based on measurements provided by the Field/Responding Crews. Engineering staff calculated the spill on land and the spill contained within the storm drain conveyance system (MS4) by creating 3 dimensional shapes and applying the provided measurements. Key assumptions that were madeincluded assuming average/uniform depths and widths of sewage for certain locations of the spill.	The spill measurements were calculated based on measurements provided by the Field/Responding Crews and photos/videos. Engineering staffcalculated the spill on land and within the MS4 (storm drain conveyance system) by converting the spill into three dimensional shapes andapplying the provided measurements.  	Fats, Oil and Grease (FOG)		Siphon		Cast Iron		21	The spill impact required cleanup of the street curb and gutter in front of the 70 Gebhart Ave and 80 Elodie Wy properties. In addition, it was estimated that 15 gallons of raw sewage was contained in the municipal storm sewer system. The spill did not travel far in the storm drain as the SSO has cleared and stopped on it's prior to the arrival of the responding Crew.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		 While City Crews responded to the overflow, a Crew was able to stop and contain the spill by placing sandbags in both storm drain conveyance system inlets. Once the spill was contained, Crew's onsite cleared the blockage in the gravity mainline. The spill impact required cleanup of the street curb and gutter in front of in front of 70 Gebhart Ave and 80 Elodie Wy properties. In addition, it was estimated that 14 gallons of raw sewage reached the municipal storm sewer system along Elodie Wy. Crews flushed the affected storm drain conveyance system while maintaining a sandbag containment in a manhole further downstream along Elodie Wt. A Vacuum truck was stationed at the sandbag containment in the storm drain conveyance system manhole to recover all of the sewage and induced water. Another 1 gal of the spill was contained in the storm drain inlet along Gebhart Ave. This 1 gals of sewage was flushed and recovered in a nearby downstream storm drain manhole as well. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		The City has planned the following corrective actions for this sanitary sewer overflow:  1. Adjust the plugged pipe segment operation and maintenance cleaning cycle from 3 years to 1 year. 2. Re-video the plugged sanitary pipe segment along with the upstream and downstream segments in 6 months. 3. Add the nearby residential area to the FOG outreach flyer program and distribute flyers		11/25/2023 17:30	While clearing the blockage of the plugged sanitary sewer mainline, maintenance crews observed grease (FOG) deposits in the downstream sanitary sewer manhole. A CCTV inspection of the plugged sanitary sewer mainline was conducted on 11/27/2023 following the spill event. The inspection confirmed that the likely cause of the spill was grease (FOG). No major pipe structural defects or other operation and maintenance issues were found in the mainline. It is assumed that the source of the grease (FOG) is from local residential housing (no commercial buildings or businesses found in the upstream sanitary sewer drainage area). 		NA - investigation efforts have concluded.	12/20/2023 15:00														NA - no enforcement action was applicable to this spill.	Adjusted pipe segment operation and maintenance cleaning cycle from 3 years to 1 year. In addition , the nearby residential area was added to the FOG outreach flyer program.  	Adjusted pipe segment operation and maintenance cleaning frequency from 3 years to 1 year.	NA - no structural or operation and maintenance concerns were identified during post CCTV. 	A post CCTV of the pipe segment which was plugged with grease (FOG) that caused the SSO and nearby pipe segments were inspected on 11/27/2023.	NA - no Capitol Improvement necessary	Adjusted pipe segment operation and maintenance cleaning frequency from 3 years to 1 year. A file named  GebhartAve_O&M_Update  is attached in this certification which documents the cleaning frequency update.	NA - no modifications were made to the spill response activities or standard response procedures.	NA - investigation efforts have concluded.	
2	2SSO10179	Active	San Jose City CS	San Jose City	891690	2.1	Certified	Alberto Gaxiola	Associate Engineer		29-DEC-23	29-DEC-23	Monthly Category 3 Spill	2409 Blanding Ave	11/14/2023 12:51	11/14/2023 13:06	11/14/2023 11:29				The reporting party from 2409 Blanding Ave noticed the sewage spilling into the street. The spill originated from a single sanitary sewer manhole and traveled along the paved street into the curb and gutter. The spill then traveled along the curb and gutter before entering the MS4 through a storm drain conveyance system inlet. A picture file of the spill appearance point is attached in the certification named  2409_BlandingAve_SpillAppearancePoint .	37.308368	-121.797214	Manhole			195	The spill originated from a single sanitary sewer manhole and traveled along the paved street into the curb and gutter. The spill then traveled along the curb and gutter before entering the MS4 through a storm drain conveyance system inlet. While City Crews responded to the overflow, a Crew was able to stop and contain the spill with sandbags in a downstream storm drain conveyance system manhole. Map files of the extent and boundaries are attached in the certification named  Blanding_Boundary  and  Blanding_SpillPath .	Y	The spill then traveled along the curb and gutter before entering the MS4 through a nearby storm drain conveyance system inlet. While City Crews responded to the overflow, a Crew was able to stop and contain the spill with sandbags in a downstream storm drain conveyance system manhole. Map files of the extent and boundaries are attached in the certification named  Blanding_Boundary  and  Blanding_SpillPath .	134				195	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		The spill (sewage) traveled along the street curb and gutter from the manhole at the intersection of Blanding Ave and Dahill Ct (spill appearance point). The manhole is identified in 1.d. and 1.e. The spill reached and traveled along the curb and gutter, then entered City's storm inlet and drainage system. The location of the storm drain inlet is identified in 1.f. and 1.g. The spill was stopped and contained in a downstream storm drain conveyance system manhole. The storm manhole is identified in 1.h. and 1.i.	Y	37.308375114421	-121.797191035812	37.308242458642	-121.798117822863	37.309875816264	-121.801357582771			11/14/2023 13:30	The spill measurements were calculated based on measurements provided by the Field/Responding Crews and photos/videos. Engineering staff calculated the spill on land and within the MS4 (storm drain conveyance system) by converting the spill into three dimensional shapes and applying the provided measurements. 	The spill measurements were calculated based on measurements provided by the Field/Responding Crews and photos/videos. Engineering staff calculated the spill on land and within the MS4 (storm drain conveyance system) by converting the spill into three dimensional shapes and applying the provided measurements. Key assumptions that were made included assuming average/uniform depths and widths of sewage for certain locations of the spill.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		48	The spill impact required cleanup of the street curb and gutter in front of  the Blanding Ave and Dahill Ct. In addition, it was estimated that 134 gallons of raw sewage was contained in the municipal storm sewer system. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		While City Crews responded to the overflow, a Crew was able to stop and contain the spill with sandbags in a downstream storm drain conveyance system manhole. Once the spill was contained, Crew's onsite cleared the blockage in the gravity mainline. The spill impact required cleanup of the street curb and gutter in front of  the Blanding Ave and Dahill Ct. In addition, it was estimated that 134 gallons of raw sewage reached the municipal storm sewer system. Crews flushed the affected storm drain conveyance system while maintaining a sandbag containment. A Vacuum truck was stationed at the sandbag containment in the storm drain conveyance system manhole to recover all of the sewage and induced water.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		The City has planned the following corrective actions for this sanitary sewer overflow:  1. Adjust the plugged pipe segment operation and maintenance cleaning cycle from 6 years to 3 years. 2. Re-video the plugged sanitary pipe segment along with the upstream and downstream segments in 12 months. 3. Add the nearby residential area to the FOG outreach flyer program and distribute flyers		11/14/2023 15:30	While clearing the blockage of the plugged sanitary sewer mainline, maintenance crews observed grease (FOG) deposits in the downstream sanitary sewer manhole. A CCTV inspection of the plugged sanitary sewer mainline was conducted on 11/15/2023 following the spill event. The inspection confirmed that the likely cause of the spill was grease (FOG). No major pipe structural defects or other operation and maintenance issues were found in the mainline. It is assumed that the source of the grease (FOG) is from local residential housing (no commercial buildings or businesses found in the immediate sanitary sewer drainage area). 		NA - investigation efforts have concluded.	12/13/2023 15:00														NA - no enforcement action was applicable to this spill.	Adjusted pipe segment operation and maintenance cleaning cycle from 6 years to 3 years. In addition, the nearby residential area was added to the FOG outreach flyer program.	Adjusted pipe segment operation and maintenance cleaning cycle from 6 years to 3 years.	NA - no structural or operation and maintenance concerns were identified during post CCTV. 	A post CCTV of the pipe segment which was plugged with grease (FOG) that caused the SSO and nearby pipe segments were inspected on 11/15/2023. 	NA - no Capitol Improvement necessary	Adjusted pipe segment operation and maintenance cleaning cycle from 6 years to 3 years. A file named  BlandingAve_O&M_Update  is attached in this certification which documents the cleaning frequency update.	NA - no modifications were made to the spill response activities or standard response procedures.	NA - investigation efforts have concluded.	
5S	5SSO11082	Active	West Sacramento CS	West Sacramento City	891692	1.1	Certified	Robert Santos	Superintendent		29-DEC-23	29-DEC-23	Monthly Category 3 Spill	427 D street	11/07/2023 09:23	11/07/2023 09:55	11/07/2023 10:12				spill appeared from the manhole on the street.	38.58695	-121.51295	Manhole			106	Flowed out of the manhole onto the street and gutter. Used high presuure water and vacuum to clean. 	N						106	Paved Surface; Street/Curb and Gutter (2 3)		street and curd adjacent to spill										11/07/2023 10:12	Length x Width x depth x 7.48	When we received call to when we restored flow.	Debris-wipes/Non-disposables		Gravity Mainline; Manhole		Vitrified Clay		55	little to no impact.	N	Restored Flow; Returned All Spill to Sanitary Sewer System		cleared blockage and cleaned area.	Added Sewer to Preventive Maintenance Program		will add to preventative maintenance.		11/07/2023 14:59	Wipes		CCTV	12/30/2023 13:58														N/A	add schedule	add to schedule	N/A	Inspected	N/A	N/A	N/A	CCTV	
3	3SSO10340	Active	Gilroy CS	Gilroy City	891724	1.3	Certified	Matthew Jones	Deputy Director of Public Works	29-DEC-23	03-JAN-24	03-JAN-24	Category 1 Spill	6820 Glenview Dr	12/26/2023 09:55	12/26/2023 10:05	12/25/2023 11:00	12/26/2023 11:13	23-7859		spill occurred from two points(manholes) primary spill was M/H in front of 6820 Glenview Dr. secondary spill location was M/H in front of 655 Johnson Way	36.99612	-121.57165	Manhole	2nd manhole	second spill location was manhole in front of 655 Johnson Way.  spill was not a active sso when arrived	1125	sso was not active at time of arrival.   photos attached	Y	entered catch basin that connects to outfall into Princevalle drainage channel	224	901	single water discharge point was outfall into drainage channel	901	224	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		spill appeared from two manholes reaching curb line and entering storm drain. Storm drain empties into Princevalle drainage channel 	Y	36.99612	-121.57165	36.99552	-121.57153					12/25/2023 01:45	spill was calculated using measured gallons based on what was recovered and duration and flow rate based on witness statements and what was observed at scene	data used was both measured gallons on site and flow rate based on witness statements and info provided	Debris-Rags; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline; Siphon	blockage was located in segment # 2192 at a distance of 39' upstream                                                        #4936 at a distance of 39' upstream	Vitrified Clay		46	spill impacted roadway around two manholes, curb line, catch basin and outfall in drainage channel 	N	Contained All or Portion of Spill; Returned Portion of Spill to Sanitary Sewer System		Two vactor method, wash down and vacuumed up.   cleaned storm mains #1022 (119') ,  #1023 (69')  and #3548(inlet). 	Adjusted Schedule/Method of Preventive Maintenance		Adjust maintenance schedule to a higher frequency and continue to provide outreach to public on dangers of F.O.G and rags.	Milestones include adjusting frequency of cleaning cycle with the end result being no future sanitary overflows.  Continue to monitor monthly and re-evaluate in six months on whether continued adjustment of cleaning cycle will be needed and if it shall be adjusted accordingly.  	12/26/2023 11:30	investigations resulted in findings of grease and rags causing blockage 	N			Princevalle storm channel	Other (specify below)	Princevalle storm drainage channel	storm water drainage channel	N/A	Other (specify below)	Street and curb line around manholes were cleaned and sanitized no inpact to public. Storm drainage channel outfall is restricted area no inpact on traffic or public access.	City of Gilroy	0	N	N												
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District	891725	1.2	Certified	David Leamer	Assistant Superintendent	29-DEC-23	12-JAN-24	12-JAN-24	Category 1 Spill	336971	12/28/2023 12:44	12/28/2023 13:10	12/27/2023 09:15	12/28/2023 15:53	23-7908		See Attached Spill Map	38.61997222	121.26	Lateral Clean Out (Private)		2 private lateral cleanouts	1354	See Attached Spill Map	Y	See Attached Spill Map	69	0	See Attached Spill Map	1152	198	Drainage Conveyance System that discharges to surface water; Paved Surface; Surface Water		See attached Spill Map.	Y	38.61997222	121.26							12/28/2023 14:10	See attached Volume Estimation.	See attached Volume Estimation.	Root Intrusion		Lower Lateral		Vitrified Clay		56	No observed impacts of the spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified Sacramento County Department of Water Resources Drainage.	See attached Description of Events.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected the lower lateral with CCTV on December 28, 2023. Based on the findings, SacSewer adjusted the preventative maintenance cleaning frequency from 24 month to 18 month.	Adjusted the lower lateral cleaning frequency on January 5, 2024.	12/28/2023 16:30	See attached Description of Event	N			Buffalo Creek	Stream/Creek		The impacted surface water is partially fenced and not accessible to the public. Buffalo Creek is an un-lined surface water that had moderate flow.	No observed impacts to aquatic life.	Other (specify below)	The impacted surface water is partially fenced and not accessible to the public.	N/A	0	N	N												
8	8SSO10566	Active	Costa Mesa SD CS	Costa Mesa Sanitary District	891727	1.2	Certified	Mark Esquer	District Engineer	02-JAN-24	28-JAN-24	28-JAN-24	Category 1 Spill	1656 Iowa Spill	12/27/2023 12:24	12/27/2023 12:45	12/27/2023 11:45	12/27/2023 13:56	23-7881	28-JAN-24	SSO in front of 1656 Iowa Street, Costa Mesa, CA. Operator reported that sewage was seeping from the manhole near the street address. Found grease to be the cause.	33.690947	-117.925801	Gravity Mainline			75	sewage seeping from manhole cover about 50 feet from catch basin in street.	Y	City Catch Basin connected to 120 foot City storm drain that discharges to County of Orange open trapezoidal channel designation D03. 	0	75	Catch basin on street is the entry point	75	0	Drainage Conveyance System that discharges to surface water		SSO in front of 1656 Iowa Street, Costa Mesa, CA. Operator reported that sewage was seeping from the manhole near the street address. Found grease to be the cause. SSO traveled across the roadway to the gutter, then easterly to the storm drain inlet., see various attached photos.	Y	33.690947	-117.925801							12/27/2023 13:00	An engineering consultant was hired to calculate the flow estimate. The consultant used the gutter pictures to estimate and measure the flow width in the gutter. Consultant conducted a site visit and measured slope, gutter width, gutter cross slope, and verified estimated flow width from photos.  The calculated and measured data was used to determine flow depth and volume at 1 gpm maximum.  It is likely that the flow varied and the average flow was less than the maximum. However, because data indicating how the SSO flow varied with time, the maximum flow was used to provide a conservative flow estimate.  The flow start was determined by a resident interview (1657 Iowa). The resident indicated that he noticed the flow had started about an hour prior to the District arrival. Based on SSO start and stop time(s), 1 GPM for 75 minutes is 75 gallons into the drainage system. 	Used a resident observed start time (11:45 AM), District noted arrival and SSO relief time (1:00 PM), for a total flow time of 75 minutes..  	Debris-Rags; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline; Manhole		Vitrified Clay		63	75 gallons of residential domestic sewage water, without wastewater solids, entered the City storm drain system and was conveyed to an open channel about 128 feet due north of catch basin. The sewage was conveyed to a storm channel that is usually diverted during non-rain events to the OC Sanitation Treatment Plant #1.	N	Cleaned Up (specify below); Restored Flow	District set up containment upon arrival and proceeded to observe downstream sewer manholes until they determined location of blockage. District staff relieved the blockage, vacuumed any sewage caught by the containment, and washed down the street and gutter, vacuuming the wash water. District staff also washed and vacuumed the inside of the storm drain catch basin.	After initial call:  1. District dispatched staff to the reported spill location. 2. District set up containment upon arrival and proceeded to observe downstream sewer manholes until they determined location of blockage. 3. District staff relieved the blockage, vacuumed any sewage caught by the containment, and washed down the street and gutter, vacuuming the wash water.  4. District staff also washed and vacuumed the inside of the storm drain catch basin.	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below)	The District will be sending FOG and  What to Flush  information to the residence within the spill area (upstream residence) because FOG and wipes/rags contributed to the SSO. .	The District has reduced the cleaning interval from 1 year to 6 months as the sewer was previously cleaned about 6 month earlier. District also cleaned the entire sewer from upstream terminus to the point of discharge at a District pump station.  	Most action implemented immediately.  literature will be sent to residence as part of the Quarterly newsletter publication (By March 30, 2024).	01/16/2024 12:03	Rags and grease were observed when stoppage was cleared. Subsequent cleaning did not indicate additional debris. 	N			County of Orange Channel D03 & possibly Santa Ana River.	River		County of Orange  open trapezoidal channel that flows to pumping plant several mile downstream.  	None observed. 	Other (specify below)	Due to rains ahead of the spill, County of Orange Health typically posts beaches near river mouth. 	OC Health	0	N	N												
2	2SSO10109	Active	Concord City CS	Concord City	891759	1.2	Certified	Pernise Seumanutusa	Public Works Supervisor		02-JAN-24	02-JAN-24	Monthly Category 3 Spill	1500 ellis st	01/02/2024 10:01	01/02/2024 10:16	01/02/2024 09:05				spill was at apartment cleanout  our mainline was plugged spill was to paved surface and apartment catch basin in driveway spill did not make it to our storm drain system so we were able to recover 100 percent of spill	37.97033	-122.03729	Lateral Clean Out (Private)	na	na	71	na	N	in driveway of apartment did not reach our system	71				71	Drainage Conveyance System; Paved Surface		paved surface and apartment catch basin in driveway	Y	37.97028	-122.03728							01/02/2024 10:19	flow and duration and by talking with witness	flow and duration	Debris-General; Debris-Rags		Gravity Mainline		Vitrified Clay		80	no impact 100 percent recovered	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		rinsed and sucked up all debri on paved surfaces and catch basin sprayed disenfectant 	Inspected Sewer Using CCTV to Determine Cause		cctv to see if there are any pipe issues		01/02/2024 11:22	cctv to determine if there are any structural issues , breaking plug and seeing rags and debri in flow		na	01/02/2024 12:11														na	na	na	na	na	na	na	na	na	
6B	6SSO11425	Active	Victorville SD CS	Victorville City	891761	1.1	Certified	Doug Mathews	Director of Public Works & Water		31-JAN-24	31-JAN-24	Monthly Category 3 Spill	15578 6th St	12/14/2023 12:06	12/14/2023 12:22	12/14/2023 12:05				Spill occurred through clean out (private) in the upper lateral. Spill was caused by roots in the lower lateral.	34.53606	-117.29558	Lateral Clean Out (Private)			90	The length of the spill was approximately 548-ft. which flowed northeast on the east side of the alley and turning northwest on the south side of C St to 5th St, turning northeast on the east side of 5th St to 15627 5th St where a dirt berm was placed to stop the spread of the spill.	N						90	Paved Surface; Street/Curb and Gutter (2 3)		The length of the spill was approximately 548-ft. which flowed northeast on the east side of the alley and turning northwest on the south side of C St to 5th St, turning northeast on the east side of 5th St to 15627 5th St where a dirt berm was placed to stop the spread of the spill.	Y	34.53606	-117.29558	34.53715	-117.29512					12/14/2023 12:41	Resident was using the shower for hot water to clean his bathroom. Shower head flowrate is 2.5 gallons a minute. Used the duration of the spill (36 mins) multiplied by flowrate (2.5 gpm) = 90 gallons. Recovered 90 gallons.	City weed abatement crew was working next to spill location and saw the water starting to flow and called it in. The start time is therefore based on information from the eyewitness. The stop time is based on when the resident was asked to turn his water off and the spill stopped.	Root Intrusion		Lower Lateral		Vitrified Clay		50	There was no spill impact to the area.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Received call and headed to location. On the way to the location called for combination truck and CCTV truck. Arrived on scene and took photos of spill point. Followed spill flow downstream and damned it up in front of 15627 5th St. Combination trucks arrived and sucked up puddles. CCTV truck arrived and started to camera the line to locate the issue. After spill stopped the and the puddles were sucked up crew started sanitizing the spill area and cleaned up any debris.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		Spill was caused by roots in the lower lateral. The City had Roto Rooter come out and clear the roots out of the lateral with a sewer machine (snake). Also had Roto Rooter Hydro jet the lateral to remove all roots.		12/14/2023 14:58	CCTV Truck was used to inspect the sewer main and lateral. While inspecting the lateral the camera was heading upstream from the sewer main and found roots in the lower section of the lateral. No water was coming through the roots. CCTV crew located and marked the defective area of the lateral in the alley on the asphalt. Roto Rooter was called out to clear the roots out of the lateral. Roto Rooter used a sewer machine (snake) and also Hydro jetted the lateral to remove all roots. Roots were removed by 2:57 pm and flow was restored.		There is no ongoing investigation. Investigation was completed when CCTV truck located the roots in the lateral.	12/14/2023 13:41														N/A	The City will monitor/CCTV the lateral quarterly	The City will monitor/CCTV the lateral quarterly.	N/A	Lateral was inspected on 12/14/23 and found roots in lower lateral. Roto Rooter was called out to clear the roots out of the lateral. Roto Rooter used a sewer machine (snake) and hydro jetted the lateral to remove all the roots.	N/A	N/A	Post spill response meeting held on 1/9/2023. At this time no modifications are needed.	There is no ongoing investigation. Investigation was completed when CCTV truck located the roots in the lateral.	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District	891765	1.2	Certified	John J. Hough	San Dist. Superintendent	02-JAN-24	17-JAN-24	17-JAN-24	Category 1 Spill	337116	01/02/2024 13:28	01/02/2024 14:10	01/02/2024 12:40		-		See Attached Spill Map.	38.66713611	121.2647	Other (specify below)	Private Manhole		414	See Attached Spill Map.	Y	See Attached Spill Map.	141	0	See Attached Spill Map.	266	146	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See attached Spill Map.	Y	38.66713611	121.2647							01/02/2024 14:58	See attached Volume Estimation.	See Attached Volume Estimation.	Root Intrusion		Gravity Mainline		Vitrified Clay		42	No observed impacts of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified the City of Citrus Heights and Sacramento County Environmental Management Department.	See attached Description of Event.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected the mainline with CCTV on January 3, 2024. Based on the findings, SacSewer adjusted the preventative maintenance cleaning frequency from 36 months to 12 months.	Adjusted the main line cleaning frequency on January 4, 2024.	01/02/2024 17:54	See attached Description of Event.	N			San Juan Creek	Stream/Creek		San Juan Creek is an un-lined surface water with light flow.	No observed impacts to aquatic life.	Other (specify below)	The impacted surface water was accessible to the public. However, contamination warning signs were not posted due to the impending rains and the ammonia test only showing trace concentrations.	N/A	0	N	N												
2	2SSO10202	Active	Tamalpais CSD CS	Tamalpais Community San Dist	891776	1.3	Certified	Mike Quecke	Facilities Superintendent		03-JAN-24	03-JAN-24	Monthly Category 3 Spill	430 Durant Way	12/26/2023 13:15	12/26/2023 13:20	12/26/2023 10:14				37.87188, -122.534383  at single appearance point MH6.078	37.878188	-122.534383	Manhole			203	photos taken are from after event	N						0	Other (specify below); Unpaved Surface	yard/land 	37.871645, -122.534144 spill destination reached undeveloped land and portion of pathway	Y	37.87183	-122.53436							12/26/2023 17:05	our sanitation worker determined overflow was approx. .5 gallon a minute based on visual guidelines from SSCSC manhole overflow gauge. his calculations were adjusted due to total homes (21) upstream of this segment, flow at appearance point was not a constant, estimates of occupied homes during event. 	TCSD received a call for this over the phone as they reported they noticed a spill occurring. Our office staff who usually handles these calls was not working that day and our fill in person had not notified the sanitation department until 13:15. once staff was notified, they rushed to the scene to assess SSO.  based on area affected upon arrival and the events leading up to the time staff was notified total duration is how we concluded our approximate start time.	Debris from Lateral; Debris-Rags; Fats, Oil and Grease (FOG); Other (specify below)	roots from lateral sewer	Gravity Mainline		Other (specify below)	5.5 HDPE pipe outlet at base of manhole	2	small amounts of solids were visible within 24  of manhole lid, just wetness surrounding the affected area	N	Restored Flow		spill area was searched for solids. any solids that were found where around manhole cover and stones that surround manhole. these solids were returned to collection system once SSO stopped	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		segment was cleaned with mechanical machine		01/03/2024 08:00	based on investigation we determined that the SSO occurred due to root debris from lateral along with wipes/rags and grease. this release of debris had left residential lateral and clogged an outlet channel at base of manhole downstream.  		no ongoing investigation at this time.	01/03/2024 08:00														TCSD was unable to determine which lateral was contributing factor that caused SSO to occur. 	it was already planned to CCTV this segment or hydro flush line	cleaning is now on schedule for once a year and the method will be either CCTV, mechanical cleaning or hydro flush segment.	segment was replaced on 2/5/2022	asset was on previous maintenance schedule, then this entire section was  replaced as part of capital improvement	capital improvement had this segment replaced on 2/5/2022	segment has been added to spreadsheet for routine cleaning or CCTV	area was searched for any solids and removal action was taken. 	no ongoing investigation at this time.	
2	2SSO10145	Active	Joint C&H-Cvsd Biological CS	Crockett Community Services District	891786	1.3	Certified	Gaunt A Murdock	District Engineer	03-JAN-24	12-JAN-24	12-JAN-24	Category 1 Spill	535 Pomona	01/03/2024 08:58	01/03/2024 09:02	01/01/2024 16:00	01/03/2024 12:41	24-0036		Overflow at 2 points535 Pomona Crockett CA and 555 Pomona, both are cleanouts of private sewer lateral.	38.0309	122.1251	Lateral Clean Out (Private)		Overflow appeared at 2 cleanouts, serving 535 Pomona and 555 Pomona	33600	Sewer lateral spill, solids deposited in grass, gardens, sidewalks, travels by gutter to   storm drain.	Y	Storm drain in gutter of street	0	0	Grated storm drain located in street gutter	33600	0	Street/Curb and Gutter (2 3); Surface Water		Spill appeared at private lateral cleanouts at 555 pomona and 535 Pomona. (38.052631�N 122.214310�W and 38.052583�N 122.214380�W) Spill traveled via private walkways and public sidewalk and gutter to storm drain near 599 Pomona  (38.052739�N 122.215280�W) Drainage system travels to Carquinez straights, approximate location  38.057929�N 122.223071�W  	Y	38.057929	122.223071							01/03/2024 09:30	Reported volume(33,600 Gallons) was estimated by method of Counting Connections using time of flow to be 20.75 hours---this is the time that it was witnessed to be flowing fast, although a small appearance (described as  burp  ) was witnessed earlier. Flow was taken as the flow at 09:00 on 1/3/24 from SCADA data of the influent pump at treatment plant.  Separate visual estimations of flow were also made by Staff and by a contractor, yielding a smaller number.	Method of counting connections calculates the fraction of the system that is in the basin above the overflow vs total system size, and multiplies that fraction by the total system flow. Assumption was made that system flow was less or equal to the rate at 1/3/24 at 09:00.	Debris-General	Failure was caused by debris blockage, exacerbated by heavy rains/I&I	Gravity Mainline		Vitrified Clay		63	Spill contaminated soil & walkways, drainage system and reached waters.	Y	Cleaned Up (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow		Sewer system function was restored at 09:30 Sidewalk and walkways were hosed down and runoff collected by vac-truck. contaminated soil was removed. All contaminated surfaces were treated with Beneffect enzymatic disinfectant. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Debris was removed. CCTV was done on sewer segments, and schedule for upcoming CCTV and cleaning work adjusted.	1/3/24   08:56    Call from resident notifying staff of overflow               09:02    District Engineer arrived on site               0903     Call was made to contractor for emergency repair               09:12     Contractor arrived on site               09:30     Sewer function restored, overflow ended               12:15     Hosing down of paved surfaces completed               12:41     Call to notify OES               13:00     Cleanup Crew arrived to remove contaminated soil/etc               16:30     Removal of contamination completed                             Open CIWQS report 1/5/24                 Receive and review CCTV of both sections that could have                                      contributed to spill 1/12/24                Certify CIWQS  report	01/05/2024 10:00	CCTV shows both sewer segments near spill(above and below) to be clear of significant defects that would cause or contribute to a spill. Minor debris was found in sewer. Cause is presumed to be from debris/ toilet paper in spill.	N			Carquinez Straight	Other (specify below)	Body is a straight--a constricted section between two larger bodies of water(San Pablo Bay and Suison Bay). 	Carquinez Straight is a narrow fast flowing section of SF Bay that lies between San Pablo bay and Suisan bay. Salt/Fresh mix, fast flowing at times depending on tides. Appearance is that of a tidal large river.	None	Other (specify below)	No public access impact.  No public access to this area.  	none, no closure of water	0	N	N												
9	9SSO10662	Active	County of San Diego CS	San Diego County Dept of Public Works	891787	1.2	Certified	Anthony Hooper	LUEG Program Manager	04-JAN-24	09-DEC-24	09-DEC-24	Category 2 Spill	12518 Kardeelin Ct	01/02/2024 10:25	01/02/2024 10:55	01/02/2024 07:00	01/02/2024 16:00	24-0022		Spill appearance point was at a manhole located in an easement behind 12518 Kardeelin Ct.	32.82747	-116.92285	Gravity Mainline; Manhole			1430	Spill flowed into the backyard of the subject address continuing to the curb line in front of the address, ending in a concrete brow ditch.	Y	Concrete brow ditch that flows between homes to the west of the spill point	730	0			730	Drainage Conveyance System; Unpaved Surface		Concrete brow ditch 	Y	32.82746	-116.92285	32.82713	-116.92295	32.82613	-116.92369			01/02/2024 11:46	Visual observation of flow at manhole using SSCSC manhole overflow gauge multiplied by spill duration.	Visual observation of flow at manhole using SSCSC manhole overflow gauge multiplied by spill duration.	Debris-Rags; Root Intrusion	CCTV completed and found no additional roots or debris in gravity sewer mains, it's believed the roots originated in a private lateral.	Gravity Mainline		Vitrified Clay		59	Spill soaked into backyard turf and flowed to front of residence.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Washed down and vacuumed up area of spill in concrete brow ditch. Vacuumed backyard area of residence to remove visible sewage. Contacted mitigation company to repair associated damage.	Inspected Sewer Using CCTV to Determine Cause		Clean surrounding gravity mains and CCTV surrounding mains	Cleaning of surrounding gravity sewer mains completed 1/2/2024. CCTV of gravity sewer mains completed on 1/4/2024. 	01/04/2024 14:05	CCTV found no roots in the gravity sewer main. We believe the root mass came from private sewer lateral.	N												N													
9	9SSO10678	Active	Moulton Niguel Water District CS	Moulton Niguel Water District	891790	1.2	Certified	Sara Boyer	Regulatory Compliance Coordinator		03-JAN-24	03-JAN-24	Monthly Category 3 Spill	Golden Lantern & Marina Hills	12/15/2023 08:05	12/15/2023 08:20	12/15/2023 08:00				Appearance point was from a manhole on Golden Lantern on a gravity main line. 	33.52516	-117.68554	Manhole			625	Storm drain daylights at the eastern extent of Camino Los Padres. After daylighting, continues to travel east. Pipe bottom is corroded and over time has created subsidence due to flow. Any flow escaped from this location and was land absorbed below pipe. Drainage conveyance was dry at this point and beyond. 	Y	Entered storm drain. Storm drain daylights nearby at the end of Camino Los Padres. Drainage system is corroded and spill exited pipe onto unpaved surface and was immediately land absorbed before reaching any surface waters or other conveyance. Drainage conveyance was observed to be dry. 	0				0	Paved Surface; Unpaved Surface		Storm drain daylights at the eastern extent of Camino Los Padres. After daylighting, continues to travel east. Pipe bottom is corroded and over time has created subsidence due to flow. Any flow escaped from this location and was land absorbed below pipe.  Drainage conveyance was observed to be dry. 	N									12/15/2023 08:30	Visual estimation methods were used based on staff experience and CWEA Manhole Flow Estimation Guide. 	Spill start time is estimated based on phone call receipt time and extent of wet pavement on arrival. End time established based on the flow being stopped by staff. 	Debris from Construction		Gravity Mainline		Polyvinyl Chloride (PVC)		38	Spill reached pavement, storm drain, and unpaved surface. Flow was stopped by removing blockage and utilizing vacuum truck upon arrival. Storm conveyance was followed to intercept flow if possible and discovered flow was land absorbed. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow		Call was received by staff, work order was completed and collections staff responded immediately. Upon arrival, set up traffic control, opened manhole and began vacuuming. A second crew began investigating upstream and was able to clear the blockage and discovered construction debris from paving. Concurrently, a third crew followed the storm conveyance to intercept flow and discovered at the daylight location that bottom of pipe was corroded, and any liquid was land absorbed. Crews hosed down pavement after flow stopped. Wash-down water was captured.	Other (specify below)	Plan to educate local paving contractors about proper protection and treatment of manholes during work to prevent recurrence,	Plan to educate local paving contractors about proper protection and treatment of manholes during work to prevent recurrence,		12/15/2023 09:00	Nearby sewer lines were inspected for additional debris and to attempt to identify source of debris. Based on materials, it was determined that the debris came from paving contractors. The District will be conducting outreach with local paving contractors to ensure that manholes are adequately protected during work. 		Nearby sewer lines were inspected for additional debris and to attempt to identify source of debris. Based on materials, it was determined that the debris came from paving contractors. 	12/18/2023 09:00														Plan to educate local paving contractors about proper protection and treatment of manholes during work to prevent recurrence,	This event was due to external influence and out of the control of the district. 	This event was due to external influence and out of the control of the district. Adjusted PM schedule is not needed.	This event was due to external influence and out of the control of the district. Rehab or replacement of assets is not needed. 	Inspection of nearby gravity mains were conducted to ensure no additional debris was present. 	This event was due to external influence and out of the control of the district. Capital improvements are not needed based on post-event inspection.	N/A	In the future, the District will look at carrying plugs to ensure the catch basins can be isolated if impacted by a sewer spill. 	Nearby sewer lines were inspected for additional debris and to attempt to identify source of debris. Based on materials, it was determined that the debris came from paving contractors. 	
8	8SSO11477	Active	Fontana City CS	Fontana City  DPW	891796	1.3	Certified	Kyle Scribner	Public Works Manager	04-JAN-24	09-JAN-24	09-JAN-24	Category 2 Spill	Locust and Miller M18-1 	12/13/2023 11:30	12/13/2023 11:45	12/13/2023 11:25		-		Mainline at M18-1 had blockage where wastewater was exiting manhole pick hole at 300 GPM. Vactor arrived within 10 minutes contained spill cleared blockage and proceeded with clean up. 	34.11415	-117.4646	Gravity Mainline			6000	Spill was contained downstream within a 100 ft  from location. Vactors set up and contained and area was cleaned.	N						6000	Paved Surface		Mainline at M18-1 had blockage where wastewater was exiting manhole pick hole at 300 GPM. Vactor arrived within 10 minutes contained spill cleared blockage and proceeded with clean up. 	Y	34.11415	-117.4646							12/13/2023 13:00	Base on the amount of sewer that was vacuumed with our Vactor trucks which have 2500 gallon capacity and we had two full trucks and one truck a little less than half full which gives us the 6000 gallon estimation	We were contacted by a city employee and when it was first observed the SSO had just started at approximately 11:25, we were notified immediately and responded to the site and arrived at 11:45 and contained the spill and began cleaning the spill. 	Damage by Others Not Related to Collection System Construction/Maintenance; Debris-General; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		40	There were no direct impacts to any surrounding structures or waterways the spill stayed contained within the city curb line and was cleaned and recovered.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Once the staff were on site they utilized the PIG Dikes that the city uses for emergency containment and proceeded to vactor the spill and sanitized with chlorine granules.  	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		This area was part of our sewer hotspot locations, so we changed the frequency of how often we clean this area, and we fixed an offset in the pipe that caught the grease that created the SSO. 	We originally cleaned this area every month, now we are assessing it bi -monthly until we are comfortable the fix has been resolved 100%	12/13/2023 13:00	There was a ball of grease that plugged the sewer main and got caught on an offset we discovered once we CCTV the line. once it was blocked sewer was observed  flowing out of the pick hole and we responded accordingly. 	N												N													
2	2SSO10202	Active	Tamalpais CSD CS	Tamalpais Community San Dist	891798	1.2	Certified	Mike Quecke	Facilities Superintendent		04-JAN-24	04-JAN-24	Monthly Category 3 Spill	306 Ashton Lane	12/30/2023 14:07	12/30/2023 15:03	12/30/2023 13:10				spill occurred at MH6.074	37.8725375	-122.532211	Manhole			113	spill surrounded manhole cover and spilled down hillside to landing area approximately 80 feet long. 	N						30	Unpaved Surface	yard/land 	spill destination was visible surrounding manhole, and downhill slope approximately 65 feet to flat landing area 	Y	37.87253	-122.53224	37.87248	-122.53211	37.8724	-122.53211			12/30/2023 15:03	spill was not active upon arrival. we calculated the affected to determine total gallon volume.	I received text message from our answering service at 14:07 that a spill was reported at above address. I arrived to site at 3:03 and notice spill was not currently active or stoppage had cleared itself. our method of volume had to be calculated by what we saw on site. 	Other (specify below)	determined to be residual debris/roots from a previous cleaning	Other (specify below)	debris had clogged at base of MH6.074	Other (specify below)	5.5 HDPE pipe outlet at base of manhole	2	spill impact resulted in wet area around manhole 6.074 and downhill on slope to landing flat area. solids were only visible on hill slope just above flat landing area.	Y	Mitigated Effects of Spill (specify below)	had site cleaned to remove solids that were mixed in with some dirt/ leaf debris	upon arrival spill was contained to area at manhole and approximately 65 feet down a slope to a flat area that is graded back towards the hill. this area was mitigated to remove effects of spill	Other (specify below)	caused by contractor cleaning and not properly catching all roots/debris.	actions taken to prevent this from happening again included conversations with contractor and review of procedure to prevent SSO during or after cleaning collection system.		12/31/2023 17:00	Our investigsation findings result in an SSO that was caused by contractor not properly preventing all debris/roots from being lost downstream in collection system during their cleaning. This caused a SSO downstream to surface downstream approximately 600 feet		no ongoing investigation	01/03/2024 10:00														no enforcement taken	contractor was contacted to review event, and implement protocols to prevent cleaning debris/roots lost in collection system	none as this segment was replaced 2 years ago	this segment has been replaced within 2 years	this segment has been replaced within 2 years	segment was replaced as capital improvement 2 years ago	for this occurrence we do not have an implemented system modification and operating/maintenance modifications. this was a conversation via phone call with contractor on importance of catching & containing roots and/or debris cleaned from collection system.	spill response activities included arrival for inital assessment, having contractor clean up spill site 	no ongoing investigation	
4	4SSO10427	Active	San Gabriel City CS	San Gabriel City	891817	1.2	Certified	Greg de Vinck	Public Works Director	04-JAN-24	29-JAN-24	29-JAN-24	Category 1 Spill	864 Commercial Ave, San Gabriel CA 91776	01/03/2024 12:10	01/03/2024 12:20	01/03/2024 12:10	01/03/2024 14:41	24-0042		Spill came from maintenance hole 687 in front of address 864 Commercial Ave due to a grease blockage in the city sewer main.  	34.09617	-118.08876	Manhole			15000	The spill covered the roadway and flowed downstream into the Rubio Wash. 	Y	The Rubio Wash is located downstream of maintenance hole 687. 	0	15000	The spill came from maintenance hole 687 and flowed downstream into the Rubio Wash. 	15000	0	Drainage Conveyance System; Paved Surface		The spill came from maintenance hole 687 and flowed downstream into the Rubio Wash. 	Y	34.09621	-118.08881							01/03/2024 12:58	City of San Diego estimation sheet for sewer spills. 	Approximately 45 minutes of flow before jetting the backup clear with flow rate determined by San Diego estimation images.	Fats, Oil and Grease (FOG)		Siphon		Polyvinyl Chloride (PVC)		9	The spill came from maintenance hole 687 and flowed downstream into the Rubio Wash. 	Y	Cleaned Up (specify below); Restored Flow		 Staff pressure washed and disinfected spill with AirX44 solution area and recovered cleaning operation water with a Vactor truck.	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source		Will distribute international notices to upstream businesses.  Will double our regular maintenance cycle to twice per year for this location.	NA	01/03/2024 12:58	The spill was caused by excessive build of Fats, Oils, and Grease in the City's sewer main.  	N			Rubio Wash 	Wash		The affected flood channel eventually leads to the Los Angeles River that drains to the ocean in the City of Long Beach.	None	Public Closure; Restricted Public Access; Temporary Restricted Use		City of Long Beach	3	Y	N	Samples were not taken because it was during an active rain event with high water flow in the channel.											
5S	5SSO11061	Active	Sutter Creek CS	Sutter Creek City	891866	1.2	Certified	Dan Lafontaine	Public Works Director	04-JAN-24	04-JAN-24	04-JAN-24	Category 2 Spill	380 Spanish Street	01/03/2024 08:00	01/03/2024 08:11	01/03/2024 08:11	01/03/2024 14:05	24-0041		2 blockages were discovered 50 ' and 110' upstream from MH-59 towards MH-60.  Pipe was found to be offset and broken at seam allowing roots to infiltrate the pipe.  	38.40005	-120.80973	Inside Building or Structure	Coming out of toilet in Auto shop.		1000	Spill came out of toilet at 380 Spanish street.  380 Spanish street is an auto body shop and both bays were covered in raw sewage.  Concrete was stained and had some standing water less than one inch.  Spill drained out to asphalt parking lot and reached drainage pipe.  Upon inspection at drainage outlet no visible evidence of spill could be located.  See photos	Y	The spill propagated to the parking lot drain.  The end of the drain is at the top of the hillside.  No evidence was present of sewage exiting drainage pipe.  	2	10			500	Building or Structure; Other (specify below); Paved Surface	Spill ended up on auto body shop bay, on paved parking lot outside, and in parking lot drain.	Spill was mostly contained by the building and parking lot.  Cleaning crew was able to capture most of spill.	N									01/03/2024 10:45	Surface area of spill was the following: Auto bays 75 ft by 50 ft Parking lot 40ft by 100 feet Spill was 1/4-inch  Leads to volumes of 560 and 600 gallons (1,100 gallons total).  Operator onsite estimated 1,000 gallons.	Spill surface area calculated from GIS system (see snapshot of arial view).  Dashed lines are areas of spill at Auto shop.  Assume all spillage contained in spill area.  Assume spill depth of 1/4-inch on total surface area.  Some were much less in height but assumed worst case senario.	Fats, Oil and Grease (FOG); Root Intrusion	Rootball in pipe and  disposable wipes  wrapped around roots in two locations.  Pipe had been puled apart by root section.	Gravity Mainline		Vitrified Clay		75	Sewage spilled onto auto shop bays and parking lot.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		One operator worked on root ball in main.  Other operator worked with Auto body shop to contain spill and disinfect bays, keep existing from reaching drain.	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		Root was cleared in main on 10/3.  Pipe had CCTV after root clearance and found to have roots protruding into pipe.  Pipe segment was cleaned two days prior to spill.  Pipe was decided to be replaced ASAP. 	10/4 pipe was unearthed and replaced with HDPE.  New cleanout was also installed to ease upstream cleaning.	01/04/2024 12:15	Clay wye was installed for future expansion.  The unused portion of wye was filled with tree roots.  Upon replacing pipe Wye will not be installed and pipe will be replaced with HDPE.	N		01/04/2024 10:42										N													
7	7SSO10531	Active	Needles Sbr CS	Needles City	891872	1.1	Certified	Patrick Martinez	City Manager		04-JAN-24	04-JAN-24	Monthly Category 3 Spill	Bathrooms located on the Golf Course next to the railroad tracks	01/02/2024 10:56	01/02/2024 11:00	12/31/2023 19:51				This location is where 2 force mains meeting a gravity line that goes under the railroad tracks to the Bazubooth lift station. 	34.8378	-114.59783	Force Main; Gravity Mainline; Manhole			500	Bathrooms and manhole overflowed in the area between them. The water was contained in that area and absorbed into the ground of that area.	N		0				0	Unpaved Surface		N/A	N									01/02/2024 10:56	Spill volume is a guesstimate based on the area of saturation on the ground that was excavated 	I am guessing the spill was caused by a surcharge in the sewer collection system from a privately owned lift station into our lift station based on the call out history from December 31, 2023 at about 7pm. I was not involved in the call out of the lift station. I did not see how much water was overflowing. When I arrived the flow was back to normal.	Surcharged Pipe (Combined Collection System Only)		Force Main; Gravity Mainline; Manhole		Polyvinyl Chloride (PVC)		13	No standing water. Saturated dirt/ sand. Bathrooms overflowed. 	N	Cleaned Up (specify below); Restored Flow		There was no sanding water on the ground. Removed the contaminated dirt and replaced with fresh dirt. The bathrooms were cleaned with bleach.	Repaired Facilities or Replaced Defect		Disinfected the bathrooms. Removed and disposed of the contaminated dirt/sand. Leveled the area. Looking to get estimates for a check valve installed on the bathroom lateral. 		01/02/2024 13:30	Surcharge of the River Rd lift from a privately owned lift station causing the gravity line to back up and overflow the bathrooms which are at a lower elevation than the force main. 		None at this time	01/03/2024 09:45														N/A	N/A	N/A	N/A	N/A	We have already been working on upgrading the gravity line under the railroad tracks.	N/A	N/A	None at this time	
7	7SSO20021	Active	Needles Sbr CS	Needles City	891872	1.1	Certified	Patrick Martinez	City Manager		04-JAN-24	04-JAN-24	Monthly Category 3 Spill	Bathrooms located on the Golf Course next to the railroad tracks	01/02/2024 10:56	01/02/2024 11:00	12/31/2023 19:51				This location is where 2 force mains meeting a gravity line that goes under the railroad tracks to the Bazubooth lift station. 	34.8378	-114.59783	Force Main; Gravity Mainline; Manhole			500	Bathrooms and manhole overflowed in the area between them. The water was contained in that area and absorbed into the ground of that area.	N		0				0	Unpaved Surface		N/A	N									01/02/2024 10:56	Spill volume is a guesstimate based on the area of saturation on the ground that was excavated 	I am guessing the spill was caused by a surcharge in the sewer collection system from a privately owned lift station into our lift station based on the call out history from December 31, 2023 at about 7pm. I was not involved in the call out of the lift station. I did not see how much water was overflowing. When I arrived the flow was back to normal.	Surcharged Pipe (Combined Collection System Only)		Force Main; Gravity Mainline; Manhole		Polyvinyl Chloride (PVC)		13	No standing water. Saturated dirt/ sand. Bathrooms overflowed. 	N	Cleaned Up (specify below); Restored Flow		There was no sanding water on the ground. Removed the contaminated dirt and replaced with fresh dirt. The bathrooms were cleaned with bleach.	Repaired Facilities or Replaced Defect		Disinfected the bathrooms. Removed and disposed of the contaminated dirt/sand. Leveled the area. Looking to get estimates for a check valve installed on the bathroom lateral. 		01/02/2024 13:30	Surcharge of the River Rd lift from a privately owned lift station causing the gravity line to back up and overflow the bathrooms which are at a lower elevation than the force main. 		None at this time	01/03/2024 09:45														N/A	N/A	N/A	N/A	N/A	We have already been working on upgrading the gravity line under the railroad tracks.	N/A	N/A	None at this time	
9	9SSO10674	Active	City of Oceanside Collection System, La Salina WWTP	Oceanside City	891874	1.2	Certified	Jeremy Kemp	Utility Supervisor	04-JAN-24	04-JAN-24	04-JAN-24	Category 1 Spill	Holiday Way & Calle Del Palo	01/04/2024 12:12	01/04/2024 12:22	01/04/2024 12:12	01/04/2024 14:47	24-0053		There were 3 areas where the spill occurred (3 separate manholes)  	33.25106	-117.31522	Manhole		3 Manholes	6120	Manhole 1 - 10gpm   Manhole 2 - 30gpm   Manhole 3 - 50gpm	Y	Storm Drains and flood channels	2250	3870	3 different spill points - 2 went into storm drain boxes, 1 went into an open flood channel	3870	2250	Surface Water		Spilled out of three different manholes	N									01/04/2024 13:20	90gpm x 68mins = 6,120 gals spilled	Spilled starts the minute we receive the call - spill ends when the is nothing else exiting the City system	Construction Diversion Failure; Fats, Oil and Grease (FOG)		Gravity Mainline		Polyvinyl Chloride (PVC)		48	No human impact	N	Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Three Vactors on scene to restore flow and recover spill	Plan Rehabilitation or Replacement of Sewer		Current construction project	Current (ongoing) construction project	01/04/2024 15:39	Surcharging from construction bypass caused severe grease issues	N			Pilgrim Creek	Stream/Creek; Wetland		Wetlands / Creek	No human access / aquatic impacts unknown	Other (specify below)	No public access	City authority - call all reporting agencies	0	N	N												
2	2SSO10228	Active	Fair Oaks SMD	San Mateo County DPW	891875	1.2	Certified	Mark Chow	Principal Civil Engineer	04-JAN-24	11-JAN-24	11-JAN-24	Category 1 Spill	841 Warrington Avenue 	01/01/2024 16:48	01/01/2024 17:20	12/30/2023 09:30	01/01/2024 18:57	24-0007		The blockage was due to heavy grease and light debris. 	37.482659	-122.205473	Manhole			16990	The spill was on a street and went into a storm drain.	Y	Storm drain	165	16825	Spill emanated from a manhole and went into a storm drain.	16825	165	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		The SSO came out of a manhole went into street, curb and gutter and into a storm main that leads to surface waters.	Y	37.48313	-122.20326							01/01/2024 18:08	Eye ball estimation of flow rate was used to calculate total spill volume.	The spill start time was estimated based on the information provided by the resident during interview and spill end time was when the crew cleared the blockage.	Debris-General; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		93	The spill impacted surface waters. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Sand bags were used to contain the spill from entering the storm system. Public warning signs were posted as soon as possible and cleanup was done immediately.	Inspected Sewer Using CCTV to Determine Cause		Pipes in this area will be flushed before the holidays in the future and educational brochures will be mailed to the residents to inform them not to pour grease down the drain.	Educational brochures will be mailed to the residents in this area in February 2024. CCTV was completed in January 2024.	01/01/2024 22:35	The spill was caused by grease in the sewer system.	N			San Francisco Bay	Other (specify below)	The Bay	Storm drain leading to the Bay.	Not applicable as the spill entered the storm drain system and not directly to a surface water.	Other (specify below)	There was no impact to public access.	Not applicable	0	N	N												
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	891876	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	04-JAN-24	11-JAN-24	11-JAN-24	Category 1 Spill	3500 Mountain Blvd	01/02/2024 08:30	01/02/2024 09:00	01/02/2024 09:00		-		Gravity Mainline Man Hole overflowing on the hillside and then running onto the parking lot of the college reaching a storm line.	37.80293	-122.18698	Manhole			784	Gravity Mainline Man Hole overflowing on the hillside and then running onto the parking lot of the college reaching a storm line.	Y	The separate storm inlet flows to Lion Creek, Arroyo Viejo Creek and the Damon Slough.	0	30	The separate storm inlet flows to Lion Creek, Arroyo Viejo Creek and the Damon Slough.	30	754	Drainage Conveyance System; Paved Surface; Unpaved Surface		Gravity Mainline Manhole overflowing on the hillside and then running onto the paved parking lot of the college reaching a storm line.	Y	37.80293	-122.18698							01/02/2024 09:00	 Lost in unpaved surface: 45' L x 17' W x .17' D x 7.48 x .1875 = 182 gals.   Lost in a storm line: 200' L x .5' W x .04' D x 7.48 = 30 gals.  Recovered from paved surface: 252' L x 15' W x .02' D x 7.48 = 565 gals.  Recovered from gutter: 77' L x .5' 02' D 7.48 = 6 gallons. Total spill: 182+30+565+6= 784 gallons. 	Spill start time was based on eyewitness account. End time was based on responding crew clearing blockage in the mainline.	Root Intrusion		Manhole		Other (specify below)	HDPE	29	Gravity Mainline Manhole overflowing on the hillside and then running onto the parking lot of the college reaching a storm line.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Staff washed and cleaned the spill area, recovered a portion of the spill, and returned a portion of the spill to the sewer system.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Line was added to the sewer preventive maintenance program.	Line was added to the six-month sewer preventive maintenance program.	01/02/2024 12:30	CCTV inspection found root intrusion inside the manhole.	N			The separate storm inlet flows to Lion Creek, Arroyo Viejo Creek.	Stream/Creek		Stream.	None.	Other (specify below)	None.	N/A	0	Y	N												
5S	5SSO10938	Active	Easterly CS	Vacaville City DPW	891878	1.3	Certified	Justen Cole	Director Of Utilities	05-JAN-24	11-JAN-24	11-JAN-24	Category 1 Spill	701 Beythe Ln.	12/29/2023 17:25	12/29/2023 17:59	12/29/2023 17:20	12/29/2023 19:15	23-7942		Spill was caused by rags/wipes within the sewer main and the appearance point was at a single sewer clean-out.	38.33898	-121.99012	Lateral Clean Out (Public)	n/a	n/a	488	Photographs include the appearance point, appearance point after clean-up, destination of spill to storm drain, length and width of spill on curb & gutter and street in front of appearance point, clean-up of sidewalk, street, curb & gutter. 	Y	Street, sidewalk, curb and gutter, and storm drain inlet.	282	206	The main storm drain collector is a 54-inch RCP that ends at Alamo Creek. It was already dark and raining during the time of the spill and the outfall is difficult to access. Will investigate if a picture was taken of the outfall to the creek.  	206	282	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		Appearance Point is approximately at 1d & 1e. Storm Drain Inlet is approximately at 1f & 1g. Storm outfall is approximately at 1h & 1i.	Y	38.33886	-121.98998	38.339	-121.98979	38.33636	-121.98632			12/29/2023 18:24	Initial volume calculations were the area/volume method and area/volume contained in roadway gutter method which yielded an approx. volume of 214 gallons.  A second volume estimation method was determined to be more accurate due to the rain fall.  Ultimately, the upstream connections method was used which yielded an approx. volume of 488 gallons of which 282 gallons was fully recovered from the drainage conveyance system.	The estimated start time is difficult to determine due to the rain event during the spill. Per the description in question 3 above and visual observation of the amount of sewage observed going to the storm drain, staff determined that the most accurate volume estimation method is the upstream connections method.   	Debris-Rags		Gravity Mainline		Vitrified Clay		48	Due to the rain event during the spill, the drainage conveyance system was also carrying rainwater making difficult to assess the impact of the spill. 	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Returned Portion of Spill to Sanitary Sewer System		Responding staff used a flusher to clear main-line and used a vac-con to clean-up the spill w/ the use of the flusher as well. 	Inspected Sewer Using CCTV to Determine Cause		A CCTV inspection will be conducted. Will plan to send or deliver educational materials on properly disposing of wipes to homes within the affected area.	Follow-up on CCTV results to determine if repair or rehab is warranted.	12/29/2023 18:24	Investigation is ongoing.	Y	Determination of start time and confirmation of upstream connections.	02/29/2024 17:00	Alamo Creek	Other (specify below)	Creek	Seasonal creek	None	Other (specify below)	Seasonal creek is not used by the public.	City of Vacaville	0	N	Y	Upstream  Downstream  Point of Discharge  Drainage Conveyance  	pH; Temperature; Conductivity; Total Coliform; and Fecal Coliform  									Determination of start time and confirmation of upstream connections.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	891879	1.2	Amended	Ameal McLaurin	Sewer Supervisor 2	05-JAN-24	10-JAN-24	10-JAN-24	Category 1 Spill	2906 Carmel st	01/02/2024 17:41	01/02/2024 18:45	01/02/2024 17:30	01/02/2024 20:30	24-0027		We have a manhole on the easement at 2906 Carmel St overflowing at 10 gpm flowing down the hill side onto the curb and gutter and into the storm inlet.	37.80158	-122.20291	Manhole	Manhole on the easement in back yard of 2609 Carmel St.	None	900	The spill boundaries was from the M/H down the dirt hillside onto the curb & gutter into the storm inlet.	N	N/A	0	900	Sewage did not spill directly into surface water. spill did enter into storm inlet. At the time of the spill there was a storm event happening at the same time. which prevented us from capturing the 900 gallons that entered into the storm inlet. 	900	0	Drainage Conveyance System; Street/Curb and Gutter (2 3)		Sewage did not spill directly into surface water. spill did enter into storm inlet. At the time of the spill there was a storm event happening at the same time. which prevented us from capturing the 900 gallons that entered into the storm inlet. 	Y	37.77565	-122.21048							01/02/2024 19:00	Sewage did not spill directly into surface water. spill did enter into storm inlet. At the time of the spill there was a storm event happening at the same time. which prevented us from capturing the 900 gallons that entered into the storm inlet. 	Start time was based on eyewitness account the caller. End time was based on responding crew.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Gravity Mainline		Other (specify below)	HDPE	29	Sewage did not spill directly into surface water. spill did enter into storm inlet. At the time of the spill there was a storm event happening at the same time. which prevented us from capturing the 900 gallons that entered into the storm inlet. 	Y	Restored Flow		The spill receded after the storm stopped.	Added Sewer to Preventive Maintenance Program		Added to high frequency maintenance program.	Sewer main is scheduled for CCTV on 1/11/24.	01/02/2024 20:30	The spill was caused by heavy rainwater infiltration during the rainstorm.	Y	Sewer main is scheduled for CCTV on 1/11/24.	01/11/2024 15:00	54th avenue,Peralta, Courtland, Seminary Creek	Stream/Creek		Stream.	None.	Other (specify below)	None.	N/A	0	Y	N											Sewer main is scheduled for CCTV on 1/11/24.	
2	2SSO10196	Active	Sonoma Valley County S.D. CS	Sonoma County Water Agency (SCWA)	891881	1.1	Certified	Daniel Colvin	WA Coordinator		16-JAN-24	16-JAN-24	Monthly Category 3 Spill	1939 Linden St	01/06/2024 07:35	01/06/2024 16:30	01/06/2024 07:35				Manhole SVCSD_M133-10	38.29416	-122.48569	Manhole			75	Puddle in driveway	N						75	Unpaved Surface		spill terminated in puddle in driveway	N									01/06/2024 18:35	Eyeball flow	time of when spill was reported	Debris-Rags; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		25	none. The spill was fully recovered and the area was cleaned. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		cleared blockage in mainline and used vac truck to wash down area and fully recovered spill	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		line cleaning frequency increased from 2 years to annually		01/09/2024 07:57	after line cleaning it appears a ball of rags caused a FOG buildup		NA	01/19/2024 07:54														NA	line cleaning frequency increased from 2 years to annually	line cleaning frequency increased from 2 years to annually	NA	inspected	NA	see attachments	line cleaning frequency increased from 2 years to annually	NA	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	891919	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		16-APR-24	16-APR-24	Monthly Category 3 Spill	4222 North Vineland Avenue	01/05/2024 14:10	01/05/2024 14:34	01/05/2024 14:10				On Friday, January 5, 2024 at 2:10 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 4222 North Vineland Avenue (TG 563-A5). A CWCD crew was immediately dispatched to the incident location and determined that the 10-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 3:10 PM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.	34.143845	-118.368118	Manhole		None.	173	Sanitary Sewer Overflow.	N	None.	0				0	Unpaved Surface	The entire back up amount soaked into the ground.	34.143845  -118.368118	Y	34.143845	-118.368118							01/05/2024 15:10	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.	Spill flowrate and volume determination based on flowout pickhole or opening Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening1inches Flowrate per pickole/opening (gpm)2gpm # of pickholes/openings1 Total flowrate (gpm)2gpm Duration of spill (minutes)93minutes Total flow (gallons)189gallons 	Debris-wipes/Non-disposables		Gravity Mainline		Vitrified Clay		72	On Friday, January 5, 2024 at 2:10 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 4222 North Vineland Avenue (TG 563-A5). A CWCD crew was immediately dispatched to the incident location and determined that the 10-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 3:10 PM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.  It was estimated that approximately 173 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		On Friday, January 5, 2024 at 2:10 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 4222 North Vineland Avenue (TG 563-A5). A CWCD crew was immediately dispatched to the incident location and determined that the 10-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 3:10 PM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.  It was estimated that approximately 173 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground. 	Inspected Sewer Using CCTV to Determine Cause		As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule. 		01/05/2024 15:10	On Friday, January 5, 2024 at 2:10 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 4222 North Vineland Avenue (TG 563-A5). A CWCD crew was immediately dispatched to the incident location and determined that the 10-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 3:10 PM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.  It was estimated that approximately 173 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground. 		None At This Time.	01/05/2024 15:10														None At this time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule. 	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule. 	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule. 	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule. 	None At this Time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule. 	On Friday, January 5, 2024 at 2:10 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 4222 North Vineland Avenue (TG 563-A5). A CWCD crew was immediately dispatched to the incident location and determined that the 10-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 3:10 PM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.  It was estimated that approximately 173 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground. 	None At This Time.	
4	4SSO10443	Active	Whittier City CS	Whittier City	891926	1.7	Ready to Certify						Monthly Category 3 Spill	13412 Russell St.	12/19/2023 08:25	12/19/2023 08:30	12/19/2023 08:20				Private lateral on the side of the private property at cleanout. 	33.96572	-118.03217	Lateral Clean Out (Private)			100	Cleanout is located on the side of private property inside a shed	N						0	Building or Structure; Unpaved Surface		spill location stayed on private property. 										12/19/2023 08:40	SSCSC/CWEA MH Overflow gauge (private lateral 10gpm X 10 min = 100gal)	Notification from private resident to the time blockage was relieved by city crew.	Debris from Lateral		Gravity Mainline; Upper Lateral		Vitrified Clay		50	spill saturated private property	N	Cleaned Up (specify below); Restored Flow		jetted main sewer line, cleaned up debris from spill and disinfected spill area. 	Inspected Sewer Using CCTV to Determine Cause		CCTV indicated sewer main line is clean. Possible debris came from private lateral		12/19/2023 09:00	possibly private lateral with debris caused blockage to city sewer main line		no	12/19/2023 10:00														No	private lateral should be on a maintenance schedule	property owner will need to schedule maintenance to lateral	no	no	no	no	none	no	
1	1SSO10017	Active	Sebastopol City CS	Sebastopol City	891927	1.2	Certified	Erik Billing	Assistant Superintendent	09-JAN-24	22-JAN-24	22-JAN-24	Category 1 Spill	200 High Street	01/05/2024 12:05	01/05/2024 12:40	01/05/2024 11:00	01/05/2024 13:15	24-0068		4  sewer clean out in the street on High St. just north of Burnett St.	38.40106	-122.82523	Lateral Clean Out (Public)			62	Gutter pans on High St and Burnett St as well as crosswalk ramp and storm drain on High St. 	Y	Storm drain on High St west of Burnett St. 	41	21	Went it to a storm drain inlet.  	21	41	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		Paved surface around the sewer clean out and along the curb and gutter in the same area as well as a drainage inlet.	Y	38.40104	-122.82522	38.40108	-122.82485	38.40091	-122.82515			01/05/2024 13:03	Measured the amount on the surface to determine how much was recovered. Took pictures and observation notes to help determine the amount of the spill discharge as well as looking at the average flow of water being used by that unit. 	Information from the police department on when called in and what was observed from the site and the extent of the spill. Staff on site to determine when blockage was removed, and flow was returned to normal condition. 	Root Intrusion		Lower Lateral		Concrete		34	On the street and along the curb and gutter in the same location as well as in the drain inlet. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Took video of effected area and attached pictures of containment area in front of the drain inlet. Used a plumbing snake to restore the flow in the lower lateral and cleaned up the area with combination sewer/cleaning truck. 	Inspected Sewer Using CCTV to Determine Cause		Inspect the lower lateral for root intrusion on a quarterly basis.	Quarterly 	01/05/2024 15:05	Inspected sewer using CCTV and found that some roots were coming in at some joints. 	N			Calder Creek	Other (specify below)	Creek	Calder creek that runs thru town and feeds the Laguna De Santa Rosa to the east of town. 	None	Other (specify below)	None	City Of Sebastopol	0	N	N												
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	891928	1.3	Certified	Daniel Whitlock	Manager		11-JAN-24	11-JAN-24	Category 2 Spill	Marin and Indiana	12/29/2023 21:05	12/29/2023 21:25	12/29/2023 19:10		-		Spill occurred on Marin and Indiana streets when sewer reached capacity during rain event. Catch basins. N-49519, N-51468, N-51467 Manholes N-72061, N-34064, N-345837 See attachments for photos.	37.74881	-122.39034	Gravity Mainline; Manhole; Other Sewer System Structure	Catch basins. N-49519, N-51468, N-51467 Manholes N-72061, N-34064, N-345837	Catch basins. N-49519, N-51468, N-51467 Manholes N-72061, N-34064, N-345837	102410	Spill occurred on Marin and Indiana streets when sewer reached capacity during rain event. See attachments for photos.	N	Catch basins. N-49519, N-51468, N-51467 Manholes N-72061, N-34064, N-345837 See attachments for photos.	102410	102410			102410	Other (specify below); Paved Surface; Street/Curb and Gutter (2 3)	All portions of the spill were returned to the combined sewer system. 	Spill occurred on Marin and Indiana streets when sewer reached capacity during rain event. Catch basins. N-49519, N-51468, N-51467 Manholes N-72061, N-34064, N-345837 See attachments for photos.	Y	37.74882	-122.39034							12/29/2023 23:10	SFPUC H&H Model 	SFPUC H&H Model 	Surcharged Pipe (Combined Collection System Only)		Other (specify below)	No failure occurred. Rain exceeded system design/capacity.  	Concrete		30	Spill occurred on Marin and Indiana streets when sewer reached capacity during rain event. See attachments for details. Spill was isolated to the intersection of Marin and Indiana in industrial area. No property damage.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Returned All Spill to Sanitary Sewer System	Signage was posted and the area was cleaned with a Vacon and high-pressure water. All portions of the spill were returned to the combined sewer system. 	Staff arrived on scene, documented spill, called for signage/posting. When spill receded, staff washed down area and recovered spoils.	Other (specify below)	No corrective action. Rain exceeded design/capacity. 	No corrective action. Rain exceeded design/capacity.	No corrective action. Rain exceeded design/capacity.	12/30/2023 01:00	Rainfall exceeded design/capacity. 	N												Y													
2	2SSO10161	Active	North San Mateo County CS	North San Mateo County Sanitation District	891929	1.3	Certified	Kevin McCarthy	Collection System Manager	09-JAN-24	18-JAN-24	18-JAN-24	Category 2 Spill	455 Hickey Blvd	01/05/2024 13:07	01/05/2024 13:09	01/05/2024 12:00	01/05/2024 15:03	24-0071		MH Located in back parking lot of 455 Hickey Blvd in Daly City	37.66289	-122.46655	Gravity Mainline; Manhole	n/a	n/a	1581	n/a	Y	Storm catch basin downstream from MH	350	0			350	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		Landscaped areas and parking lot in the rear of 455 Hickey Blvd. an office building. Ultimate destination of sewage not recovered from the storm system is San Francisco Bay.	Y	37.66289	-122.46675							01/05/2024 15:21	Use of time spill was first spotted ,then reported, and then responded to by District personnel, then relieved. use of time from beginning to end and observed flow rate exiting Pick holes on manhole cover.	Use of visual reference chart for overflow comparison in District SERP handbook. Mathematical formula of time from first sighting to blockage clearance and flow rate from manhole.	Debris-Rags; Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		50	Sewage in dirt area near manhole. Loss of 1,231 gallons to storm system and ultimately San Francisco Bay.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Partial containment was in dirt area by manhole. Catch Basin was not blocked off as efforts were focused on relieving blockage. After doing so, estimate of gallons spilled was relayed to Cal-Oes. immediate cleanup and mitigation of dirt area, curb  and gutter, and storm system was performed chasing storm system downstream on Hickey Blvd. Recovery of sewage from storm system was performed as best we could. Recovered sewage was returned to the Sanitary System. Note: Property Manager was the caller who notified us. 	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		Follow up cleaning and televising of affected line segment and those above and below it. Discovery of three abandoned laterals that had heavy root intrusion. these will be eliminated via trenchless repair  done by contractor in the immediate future.	In the process of securing a particular contractor specializing in trenchless repair. Anticipate that the repair will be completed before the end of March depending on his availability.	01/05/2024 13:51	On January 8th crews returned to address and did extensive cleaning and televising using the method of having tthe camera in the line while cleaning was ongoing. The better to relay to cleaning crews progress and repositioning direction. As mentioned above, blockage cause was determined to be root intrusion from three abandoned laterals into mainline blocking flow and causing FOG backup. Video footage of before and after cleaning is available upon request.	N												N													
3	3SSO10324	Active	Santa Cruz County CS	Santa Cruz County Public Works	891931	1.2	Certified	Ramon Sandoval	Assistant Superintendent 		09-JAN-24	09-JAN-24	Monthly Category 3 Spill	2130 Portola drive	12/13/2023 10:23	12/13/2023 10:27	12/13/2023 09:45				See attached photos.	36.96215	-121.98435	Inside Building or Structure; Lateral Clean Out (Private)			143	see attached photos.	Y	See attached photos.	0				10	Building or Structure; Drainage Conveyance System; Unpaved Surface		From property address 2130 Portola Drive out of lower living space showers and toilets, then out of cleanout in front of property to unpaved surface area to address 2152 Portola Drive into a drainage inlet under the garage to an outlet that eventually absorbed onto unpaved soil.	Y	36.96184	-121.98387							12/13/2023 10:29	Area/volume method: ponded sewage reference.	R/P homeowner Tim McGirk was showering when he first noticed the sewage backing up at 09:45am which at the same time started spilling onto his floor. First responder from the County arrived at the site at 10:27am and had contractors pull the plug from the sewer main to stop the overflow at 10:29am.	Construction Diversion Failure		Manhole		Polyvinyl Chloride (PVC)		1	At address 2130 Portola Drive, lower living area was flooded with sewage causing damage to furniture, floors, walls and personal belongings. 	N	Cleaned Up (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Contractor brought in a private restoration company (Service Master).	Contractor hired (Service Master) to perform cleanup and restoration to the affected living area at address 2130 Portola Drive.	Other (specify below)	See below	Contractor will have a bypass in place when plugging the sewer main and an employee available at the manhole to monitor flows.		12/13/2023 12:00	Contractor performing work for the County of Santa Cruz plugged the sewer main to televised newly installed sewer pipe. Contractor did not have a bypass set up or an employee monitoring flows at the manhole. This caused sewer to backup into the property at address 2130 Portola drive.		no	12/13/2023 12:00														n/a	n/a	n/a	This section of sewer pipe was recently rehabilitated. Contractor was CCTV to complete the project. 	n/a	n/a	n/a	n/a	no	
5S	5SSO11001	Active	Modesto CS	Modesto City	891932	1.2	Certified	Robert Englent	Wastewater Collection System Superintendent		19-JAN-24	19-JAN-24	Monthly Category 3 Spill	2312 Glendale Ave.	12/20/2023 11:07	12/20/2023 11:36	12/20/2023 11:07				In the alley behind 2312 Glendale Ave.	37.63886	-120.95413	Manhole			465	Sewer overflowed from terminal manhole SS006906 and traveled 20 feet Southwest where it entered terminal manhole SS006905.	N						465	Other (specify below); Paved Surface	The spill reentered the sewer system due to back to back terminal manholes.	Sewer overflowed from terminal manhole SS006906 and traveled 20 feet Southwest where it entered terminal manhole SS006905.	Y	37.63884	-120.95418							12/20/2023 12:40	The sewer line was surcharged at manhole SS006914 and back flowed to SS006906. The sewage was trickling out of one manhole into the other at a rate of 5 GPM (using visual pick hole method) for 93 minutes for a total spill of 465 gallons. 	A resident at 2332 Glendale Ave. called about a sewer backup at 11:07 A.M.  The spill ended at 12:40 P.M. when the cleaning crew broke the stoppage. A crew was already on-site due to street flooding in the area. 	Vandalism (specify below)	An unknown person opened a sewer MH to relieve flooding and a traffic cone washed into the MH blocking the flow.	Manhole		Vitrified Clay		74	Since the sewer water was returned to the sewer system, there was not any impact.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System	See Attachment	Sand bags were placed around the MH. After the stoppage was cleared we washed and vacuumed the alley.	Other (specify below); Repaired Facilities or Replaced Defect	A locking MH lid was installed to replace the regular lid.	A new locking lid was installed to prevent someone from removing the lid to alleviate storm water.		12/20/2023 15:00	See Attachment		Investigation closed.	12/20/2023 15:00														The person responsible for the stoppage was never identified, therefore no enforcement action was taken. 	In this instance, installing a locking lid was the only modification made.	N/A	N/A	A new locking lid was installed.	N/A	New locking lid installed on 01-04-2024 See attached document.	N/A	Investigation closed.	
5S	5SSO10893	Active	City Of Folsom CS	Folsom City - Environmental & Water Resources Dept	891934	1.4	Certified	Marcus Yasutake	Environmental & Water Resources Director	11-JAN-24	21-FEB-24	21-FEB-24	Category 2 Spill	E. Bidwell Force Main	12/21/2023 12:54	12/21/2023 13:04	12/21/2023 12:00		-		Force main break on inbound E.Bidwell between College Parkway and Oak Ave. Parkway.	38.393978	121.075568	Force Main			1600	Force main break on inbound E.Bidwell between College Parkway and Oak Ave. Parkway. The spill totaled approx. 1600 gallons, with 1300 gallons recovered.	N	n/a					1300	Paved Surface; Unpaved Surface		Force main break of approx. 1600 gallons that spread down the paved roadway, as well as a non paved section. 	Y	38.393978	121.075568							12/21/2023 15:00	Based on the length, depth, and width of the spill area as well as inflow totals from Oak Ave. pump station. 	Inflow and discharge numbers from the pump station. 	Pipe Structural Problem/Failure - Installation		Force Main		Polyvinyl Chloride (PVC)		21	1600 gallons spilled with 1300 gallons recovered. Resulting in a loss of 300 gallons. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below)	Repaired Section of Broken Force Main	Vac-trucks, waddles, storm drain covers as well as bypass of the force main 	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		City has replacement parts on hand incase of future break and project is now on our Pre-Design to evaluate a long term solution.	Parts to be onsite by by March 2024, Pre-Design to be completed by FY 24/25	12/21/2023 15:00	During excavation it was determined that the PVC was place on rock and didn't have proper bedding.	Y	Pre-design analysis has been started.	09/01/2024 08:38										N												Pre-design analysis has been started.	
2	2SSO10114	Active	Sausalito City CS	Sausalito City	891935	1.3	Certified	Patrick Guasco	Department of Public Works Division Manager	09-JAN-24	22-JAN-24	22-JAN-24	Category 1 Spill	71 Woodard Ave	10/25/2023 09:08	10/25/2023 11:05	10/25/2023 09:08	11/16/2023 08:41	23-7136		1 appearance point.  While preforming condition assessment of a local Storm Drainage Convenance System, we noticed where the Sewer crossed over the top of the SD was leaking into the storm drain. Called in an emergency excavation to make the necessary repairs. Planning on full replacement in the near future	37.95979	-122.49398	Gravity Mainline; Other (specify below)	SS Mainline X over 12  RCP SD line. Noticed SS was dripping into SD through a hole in the SD at the 12 O'clock position.		3	Photos inside the 12  SD looking up through a small hole at the 12 O'clock at the cracked 6  VCP SS leaking through the hole into the SD 	Y	12  RCP SD crossed under a 6  VCP SS Main that had multipole cracks. The SD runs NW in the street and connects to the convenance system that runs between Spring St and Easterby ultimately daylighting in the bay on liberty ship.  	0	3	none	3	0	Drainage Conveyance System		1 appearance point.  While preforming condition assessment of a local Storm Drainage Convenance System, we noticed where the Sewer crossed over the top of the SD was leaking into the storm drain. Called in an emergency excavation to make the necessary repairs. Planning on full replacement in the near future	Y	37.95979	-122.49398							10/26/2023 14:05	Found a leaking Sewer main on top of a storm drain. Reviewed camera footage and 16 drips with in 10 seconds. Ends up being 96 drips every minute, 5,760 drips a hr, 138,240 drips in 24 hrs. Math ends up being 76.48 oz a day / 2.16 Gal a day .09 GPH / .0015 GPM	Found a leaking Sewer main on top of a storm drain. Reviewed camera footage and 16 drips with in 10 seconds. calculated from when this was first noticed till the new piece of pipe had been fully installed.	Other (specify below)	Pipe had outlived service life	Gravity Mainline		Vitrified Clay		100	minimal spill, impacting area at a very minimal rate	N	Other (specify below)	 Emergency spot repair had been preformed to restore flow.	Flushed the local SD line to remove sewage using a Vactor	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect		Gathering Quotes to plan a full replacement of this segment. Planning on the full replacement in mid February 24 	Planning on replacing this defected segment to match the recently replaced portion of the existing easement with HDPE SDR17	10/26/2023 17:02	While preforming routine condition assessment of the storm water drainage system in this specific area triggered by storm drainage challenges the previous winter 2022/2023 we stumbled upon infiltration leaking into a hole in the top of the SD pipe. After further investigation, this was confirmed to be sewer leaking into the SD. At this point , calls were made to get a contractor out right away to mitigate the affects of the spill. 	N			Richardson Bay	Other (specify below)	 Richardson Bay Bay portion of San Francisco Bay  	Assuming the water is peculating downward into the water table, the possibility exists that the sewage could have entered the Richardson Bay Bay portion of San Francisco Bay  	Unknown, Spill was minimum> There is a possibility that the Hazard had been dissolved by the microbial life before reaching the bay. 	Other (specify below)	Marin County Environmental Health did not require any sampling or closures.	N/A	0	N	N												
4	4SSO10388	Active	Glendale City CS	Glendale City	891945	1.2	Certified	Dan Hardgrove	Assistant Director of Public Works	10-JAN-24	22-JAN-24	22-JAN-24	Category 1 Spill	1600 Block of Thurber Pl.	01/07/2024 19:08	01/07/2024 19:45	01/07/2024 17:50		-		Spill exited out of two paved-over manholes at the Intersection of Thurber pl. and Foothill Drive. Photos with GPS coordinates will be attached.	34.18681	-118.28279	Manhole; Other (specify below)	Immediately adjacent manhole.		382	Spill went down gutter line for approximately 500 feet into a storm drain.	Y	Into storm drain catch basin that leads into L.A. River.	0	260	See map identifying discharge location into the LA River.	260	122	Drainage Conveyance System; Street/Curb and Gutter (2 3); Surface Water		Drainage conveyance system discharged into L.A. River.	Y	34.15687	-118.28298							01/07/2024 21:01	Referencing attached photo of sewage seeping from paved over manholes, and low volume captured behind berm at receiving catch basin, staff estimates a spill rate of two gallons per minute. 	Rate x time = total volume.  2gpm x 191 min. = 382 gals. Estimated volume vacuum recovered (61 min of vacuum recovery) 2gpm x 61 min = 122 gals. Volume captured behind berm at gutter line, minimal volume not included in estimate.  Total volume lost to drainage conveyance system and surface waters = 382 - 122= 260 gallons.	Root Intrusion		Gravity Mainline		Vitrified Clay		97	An estimated of 260 gallons of untreated sewage flowed to the L.A. River.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Yard Attendant was first on scene and constructed a sandbag dike. After hours standby crew was on scene a short time later. Crews discovered spill seeping from paved over manholes. Vacuum truck started recovering of spill while the flusher set-up downstream to break stoppage. Once stoppage was relieved crew cleaned and sanitized affected area.	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Possible increased frequency of preventive maintenance based on circumstances-pending review.	See item 10 a. above.	Trouble Spot review schedule for Wednesday 1/24/2024 at 7:15 a.m.	01/08/2024 10:50	Post CCTV Spill Inspection discovered heavy roots from a lateral adjacent to where the crew broke the blockage.	N			Los Angeles River via the Verdugo Wash	River		Concrete Lined Channel.	No observations made.	Other (specify below)	These drainage conveyance systems are not accessible by the public.	Restricted by Army Corps of Engineers and City of Glendale Ca.	0	N	N	No water quality samples taken.	No water quality samples taken.										
8	8SSO10591	Active	Orange City CS	Orange City	891963	1.1	Certified	Mike Carney	Environmental Program Manager		11-JAN-24	11-JAN-24	Monthly Category 3 Spill	Katella Ave & Batavia St	12/21/2023 12:23	12/21/2023 12:30	12/21/2023 12:20				Wastewater overflow from a city manhole at the intersection of Katella Ave & Batavia St. 	33.80903	-117.86154	Manhole	N/A	N/A	60	Wastewater spilled from city manhole in street at intersection of W. Katella Ave and N. Batavia St and spread south along N. Batavia St to a nearby catch basin. 	Y	Catch basin at the southeast corner of N. Batavia St. 	20				60	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)	N/A	Catch basin # 10-001	Y	33.80851	-117.86158							12/21/2023 12:50	Spill volume was estimated using the eyeball method and the standardized photos of gpm rates.  {Wastewater was only intermittently exiting the manhole pick hole(s).}	The reporting party was a driver who was at first waiting at the intersection and who then immediately called before passing through the intersection.  Additional wastewater exited the manhole during jetting operations and was accounted for in the overall spill volume; the spill end time was recorded when normal flow resumed and water level receded in the manhole.	Fats, Oil and Grease (FOG)	N/A	Gravity Mainline	N/A	Vitrified Clay	N/A	64	Wastewater reached the drive areas and spread to the curb and gutter, with a small amount reaching the downstream conveyance system.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Surface area cleaned (pressure washed and vacuum swept) and the City's combo vac truck hose was extended inside the Collins Channel immediately downstream to remove any wastewater and nuisance water within the outfall pipe.	Adjusted Schedule/Method of Preventive Maintenance	N/A	Adjusted the cleaning schedule of the area.		12/21/2023 14:00	N/A		N/A	12/21/2023 14:00														N/A	Increase the frequency of cleaning within this section of pipe.	Inspect more frequently and clean as needed.	N/A	N/A	N/A	N/A	N/A	N/A	
4	4SSO10429	Active	Santa Clarita City CS	City of Santa Clarita 	891964	1.4	Certified	Robert Swartz	Sr. CE		25-JAN-24	25-JAN-24	Monthly Category 3 Spill	1295 (26123 Bouquet Canyon Road, Santa Clarita)	12/23/2023 21:05	12/23/2023 16:25	12/23/2023 21:00				CSMD Map Sheet No. 1295 MMS No. 8608180	34.41801	-118.54372	Other (specify below)	Laundry room floor drain / property clean-out		600	The sewage discharged to unpaved surface.	N						0	Unpaved Surface		The sewage discharged to unpaved surface.	Y	34.41801	-118.54372							12/23/2023 21:30	Visual or Eyeball Method	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		43	N/A	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow		Crew was already on site for a sewer backup. The sewer overflow did not occur until the crew had already been cleaning the mainline to break down the initial stoppage. Backflushed the mainline to the trunkline. Manhole did not fully drain which then had to be inspected and found it running at high capacity causing a surcharge into the mainline and causing grease buildup. Manhole was cleaned out and we were able to hydro jet the mainline up to relieve blockage. Spoke to Sanitation regarding issue with sanitation line and they agreed to inspect the sanitation sewer system readings for further response. All required agencies were notified. 	Other (specify below)	Inspect and monitor condition.	We will continue the current 30-day cleaning frequency and have the segment televised, to determine if there are any adjustments required on the Sewer Maintenance responsibility portion.		12/24/2023 02:30	We will continue the current 30-day cleaning frequency and have the segment televised, to determine if there are any adjustments required on the Sewer Maintenance responsibility portion.		We will continue the current 30-day cleaning frequency and have the segment televised, to determine if there are any adjustments required on the Sewer Maintenance responsibility portion.	02/23/2024 12:00														N/A	N/A	Inspect and monitor the condition. We will continue the current 30-day cleaning frequency and have the segment televised, to determine if there are any adjustments required on the Sewer Maintenance responsibility portion.	N/A	N/A	N/A	N/A	N/A	We will continue the current 30-day cleaning frequency and have the segment televised, to determine if there are any adjustments required on the Sewer Maintenance responsibility portion.	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	891970	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		16-APR-24	16-APR-24	Monthly Category 3 Spill	126 East 56th Street	01/10/2024 23:59	01/11/2024 00:53	01/10/2024 23:59				The initial crew arrived at 12:53 A.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.  	33.991362	-118.272939	Inside Building or Structure		None.	476	Sanitary Sewer Overflow.	N	None.	0				0	Unpaved Surface	The entire back up amount soaked into the ground	33.991362  -118.272939	Y	33.991362	-118.272939							01/11/2024 01:03	The SSO volume was estimated utilizing a standardized template which calculates the volume by using dimensional analysis.  	Volume of a spill contained in a rectangular area Length60feet Width40feet Depth0.125inches0.0104feet  25.00ft3187gallons  Volume of a spill contained in a rectangular area Length70feet Width50feet Depth0.125inches0.0104feet  36.46ft3273gallons  Volume of a spill contained in a rectangular area Length20feet Width10feet Depth0.125inches0.0104feet  2.08ft316gallons 	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		115	On Wednesday, January 10, 2023 at 11:59 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer trouble at 126 East 56th Street (TG 674-C5). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 1:03 AM. The cause of the blockage was attributed to Fats, Oils, and Grease (FOG). All necessary clean-up was then performed.  It was estimated that approximately 476 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		On Wednesday, January 10, 2023 at 11:59 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer trouble at 126 East 56th Street (TG 674-C5). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 1:03 AM. The cause of the blockage was attributed to Fats, Oils, and Grease (FOG). All necessary clean-up was then performed.  It was estimated that approximately 476 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground. 	Inspected Sewer Using CCTV to Determine Cause		As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a semi-annual cleaning schedule. 		01/11/2024 01:03	On Wednesday, January 10, 2023 at 11:59 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer trouble at 126 East 56th Street (TG 674-C5). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 1:03 AM. The cause of the blockage was attributed to Fats, Oils, and Grease (FOG). All necessary clean-up was then performed.  It was estimated that approximately 476 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground. 		None At This time.	01/11/2024 01:03														None At this time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a semi-annual cleaning schedule. 	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a semi-annual cleaning schedule. 	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a semi-annual cleaning schedule. 	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a semi-annual cleaning schedule. 	None At This time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a semi-annual cleaning schedule. 	On Wednesday, January 10, 2023 at 11:59 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer trouble at 126 East 56th Street (TG 674-C5). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 1:03 AM. The cause of the blockage was attributed to Fats, Oils, and Grease (FOG). All necessary clean-up was then performed.  It was estimated that approximately 476 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground. 	None At This time.	
8	8SSO10591	Active	Orange City CS	Orange City	891973	1.1	Certified	Mike Carney	Environmental Program Manager		11-JAN-24	11-JAN-24	Monthly Category 3 Spill	543 E. Culver Ave	12/26/2023 10:27	12/26/2023 10:45	12/26/2023 10:20				City manhole overflowing within a residential neighborhood.	33.78241	-117.84772	Manhole	N/A	N/A	155	Wastewater spilled from city manhole (#6499) in public street along E. Culver Ave gutter to a catch basin at E. Culver Ave and S. Shaffer St.  	Y	Catch basin at the corner of E. Culver Ave and S. Shaffer St. 	5				155	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Downstream access storm drain pipe located in front of 445 S. Shaffer St. 	Y	33.78174	-117.8488							12/26/2023 11:45	Using standardized spill gpm estimation photos and comparing that with eyeball estimate of wastewater contained at surface.  Then matched the known value collected within reservoir tanks of both the city vac combo truck and CR&R sweeper/vac truck. 	Neighbors statements upon discovering the onset of the intermittent overflowing manhole, which was at approximately 10:20 a.m.  Compared that with the call time to the City's hotline number made immediately thereafter.  	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)	N/A	Gravity Mainline	N/A	Vitrified Clay	N/A	105	All wastewater was removed from all surface areas and what reached the conveyance system (storm drain pipe) was fully removed. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	N/A	The city vac combo truck was used to clear the sewer line, along with a CR&R sweeper vac truck, complete cleaning and removal of all wastewater from the street curb/gutter was accomplished. The downstream storm drain pipe located at 445 S. Shaffer St was accessed to recover the 5 gallons of wastewater and any nuisance water that entered the catch basin.   	Adjusted Schedule/Method of Preventive Maintenance	N/A	The City's Public Works Field Services Division will adjust the cleaning and inspection schedule to help prevent future occurrences. 		12/26/2023 14:00	N/A		N/A	12/26/2023 14:00														N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	
8	8SSO10545	Active	Brea City CS	Brea City	891974	1.1	Certified	Matthew J Matlock	Water, Sewer & Stormdrain Supervisor		11-JAN-24	11-JAN-24	Category 1 Spill	OCFCC/Nursery-City of Fullerton	12/16/2023 11:15	12/16/2023 11:44	12/16/2023 10:45	12/16/2023 15:00	23-7695		Due to the unhoused in the area the sewer main at this location got clogged due to debris from them discarding inside the manhole.  Removed asphalt, rocks, dirt, palm branches, nursery pots, metal bars and carpet.	33.90986	-117.88098	Manhole			10050	Sewage backup happened in the sewer line due to the debris being dropped into the sewer line as described above from the unhoused, which caused raw sewage to overflow and travel down the county flood control maintenance road and then into the Loftus Channel.  Add the sewage was contained and dried out with no impact to the surface waters.	Y	The raw sewage entered the Loftus Channel and was contained behind the raised dirt berm.	0	10050	Over flow of raw sewage entered the Loftus channel running down the concrete slope paving, but all contained and dried out behind raised dirt berm.	10050	0	Surface Water		Raw sewage traveled along the County of Orange flood control basin (Loftus Channel, base material road) down the edge of the road until it went in the Loftus Channel behind a dirt berm	Y	33.90986	-117.88098	33.909128	-117.881892					12/16/2023 11:15	Used the bmp guidance document  reference sheet for estimating sewer spills from overflowing sewer manholes  from the City of San Diego Wastewater Collection Division	Used the bmp guidance document  reference sheet for estimating sewer spills from overflowing sewer manholes  from the City of San Diego Wastewater Collection Division	Other (specify below); Vandalism (specify below)	Due to the unhoused in the area the sewer main at this location got clogged due to debris from them discarding inside the manhole.  Removed asphalt, rocks, dirt, palm branches, nursery pots, metal bars and carpet.	Manhole		Vitrified Clay		60	No impact to the surrounding area or surface waters, due to no rain in a three day forecast and sewage was able to dissipate by the sun and time.  OC Flood Control came to the site and said that we had good containment of the sewage spill.	N	Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Coordinated with the City of Fullerton and our Sewer team to setup the bypass, remove the materials that caused the blockage, restore flow and minimize impact to surface waters.	Other (specify below)	Added a locking manhole lid to prevent unhoused dumping materials inside the line.  Also, check the location twice a month for tampering.	Added a locking manhole lid to prevent unhoused dumping materials inside the line.  Also, check the location twice a month for tampering.	Added a locking manhole lid to prevent unhoused dumping materials inside the line.  Also, check the location twice a month for tampering.	12/16/2023 16:20	Due to the unhoused in the area the sewer main at this location got clogged due to debris from them discarding inside the manhole.  Removed asphalt, rocks, dirt, palm branches, nursery pots, metal bars and carpet.	N			Coyote Creek Watershed 	Wash		Loftus Channel detention basin	none	Other (specify below)	none	Orange County Flood Control District	0	N	N												
1	1SSO10058	Active	Rio Dell City CS	Rio Dell City	891979	1.2	Certified	Sunshine Kelly	Wastewater Superintendent		23-JAN-24	23-JAN-24	Category 1 Spill	End of Painter Street Manhole	01/10/2024 13:30	01/10/2024 13:30	01/10/2024 13:30	01/10/2024 15:45	24-0158		The SSO occurred at the Painter Street manhole located at 556 Painter St. Photographs depict the location of the spill.	40.503117	-124.093756	Gravity Mainline			6000	Photographs depict the spill, containment of the spill with the use of sandbags and gravel. recovery, signage, and drainage ditch to allow flow of the spill away from the residential area down to the river bar. Recovery included 3 Vactor trailer loads (750 gallons/load).					Pictures show the flow path of the spill to the River Bar. The spill never made it to the surface water.	3450	2550	Surface Water		Spill destination the Eel River, river bar.	Y	40.503055	-124.09189							01/10/2024 15:30	The volume estimation was based on flow monitoring at the site as well as supervisory control from SCADA based on the trend of the Painter Street lift station wet well level and pump control and the influent flow data into the plant. Volume estimation of spill recovery was based on the volume of the Vactor. the Vactor trailer carries 750 gallons and three full recoveries were completed during the duration of the spill and to it's end.	The methodology of the spill start time was based on supervisory control based on SCADA of the data collected on the Painter Street Pump station trend, and the rain gauge at the Wastewater treatment plant. We were prepared for the event and had sandbags, signs and the Vactor placed at the site to respond as soon as it started.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Other (specify below)	The failure is that the sanitary sewer main at this location was constructed with a 90 degree turn at this manhole and the earthquake in December of 2022 destroyed private laterals allowing more I&I to enter this portion of the sanitary sewer system. An upsizing project for this section of the sanitary sewer system is in the works since 2019 and will hopefully see some forward momentum with state funding this spring and summer, before the next wet season.	20	There was no-know impact of the spill. the SSO was directed away from residents and residential property.	Y	Contained All or Portion of Spill; Property Owner Notified; Returned Portion of Spill to Sanitary Sewer System		Spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage and the personnel with Vactor at site location.	Plan Rehabilitation or Replacement of Sewer		This site has a planned upsizing project in the planning phases for the past 6 years. Currently waiting on State funding to push the design process forward.	Meeting with the State Water Control Board and Engineering company GHD on January 24th to discuss funding and scheduling of such.	01/10/2024 13:30	This SSO occurred due to the high levels of I&I. Several days of rain and saturation of the ground caused the pump station to become overwhelmed when large amount of rain occurred at once and caused the SSO at this location, the Painter Street manhole.	N			Eel River	River		The lower Ell River.	No known observed impacts on aquatic life.	Temporary Restricted Use		City of Rio Dell Wastewater Superintendent and the City of Rio Dell P.D.	2	N	N												
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	891980	1.2	Certified	John J. Hough	San Dist. Superintendent	11-JAN-24	23-JAN-24	23-JAN-24	Category 1 Spill	337431	01/09/2024 10:15	01/09/2024 10:55	01/05/2024 03:30		-		See attached Spill Map with photos.	38.6965	-121.3271	Lateral Clean Out (Public)			640	See attached Spill Map with photos.	Y	See attached Spill Map with photos.	198	0	See attached Spill Map with photos.	433	203	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See attached Spill Map with photos.	Y	38.6965	-121.3271							01/09/2024 10:55	See attached Spill Volume Estimation.	See attached Spill Volume Estimation.	Debris-General		Lower Lateral		Vitrified Clay		45	See attached Description of Event.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified City of Citrus Heights.	See attached Description of Event.	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		SacSewer inspected the lower lateral with CCTV on January 9, 2024. Based on the findings, SacSewer will replace the lower lateral and main line tap.	Target finish date of lower lateral and main line tap replacement is June 30, 2024.	01/09/2024 16:37	See attached Description of Event	N			Cripple Creek	Stream/Creek		Earthen lined stream.	No observed impact to aquatic life.	Other (specify below)	No public access impact.	N/A	0	N	N												
2	2SSO10154	Active	Mill Valley City CS	Mill Valley City	891981	1.2	Certified	Mark Neumann	Operations Superintendent		11-JAN-24	11-JAN-24	Monthly Category 3 Spill	850 Edgewood Avenue	01/09/2024 09:15	01/09/2024 09:30	01/09/2024 08:45				Manhole B36R2	37.90721	-122.57146	Manhole			60	60 gallons spilled onto unpaved surface - land. 	N						0	Unpaved Surface		Spill traveled to surrounding area - land (paved and unpaved surface).	Y	37.90721	-122.57146							01/09/2024 11:26	Drop bucket estimation method. No still recovered. 	Drop bucket estimation method.	Fats, Oil and Grease (FOG); Pipe Structural Problem/Failure - Installation; Root Intrusion		Gravity Mainline		Polyvinyl Chloride (PVC)		50	No impact.	N	Cleaned Up (specify below); Restored Flow		Performed spot repair on site 1/10/2024.	Repaired Facilities or Replaced Defect		Repair sewer line. 			Spill caused by incorrect pipe size with root intrusion and grease build-up. Performed spot repair at location. 		N/A	01/10/2024 10:31														N/A	N/A	N/A	Performed spot repair on site 1/10/2024.	Performed spot repair on site 1/10/2024.	N/A	See attachment. 	N/A	N/A	
4	4SSO10399	Active	La Mirada City CS	La Mirada City	891982	1.2	Certified	Robert Swartz	Sr. CE	11-JAN-24	31-JAN-24	31-JAN-24	Category 1 Spill	2130-0834 (12934 Pinetree Lane, La Mirada)	01/10/2024 16:10	01/10/2024 16:50	01/10/2024 16:00		-		CSMD Map Sheet No. 2130 Manhole No. 834 MMS No. 8619669 Manhole No. 834 was overflowing.	33.91343	-118.01146	Manhole	Manhole No. 834		400	Sewage was overflowing from manhole No. 834 onto the street.  A portion of the sewage spill entered the catch basin in front of 12934 Pinetree Lane.	Y	A portion of the sewage spill entered the catch basin in front of 12934 Pinetree Lane.	0	0	A portion of the sewage spill entered the catch basin in front of 12934 Pinetree Lane, which leads to PD 1282 - La Mirada Creek, unknown drain, Municipal Separate Storm Sewer System (MS4), PD 0001 (La Mirada Creek), PD 0020 (La Mirada Creek), PD 0031 (La Mirada Creek), BI 4701 - Line F - La Mirada Creek, PD 0142 (La Mirada Creek), and Coyote Creek - North Fork. 	200	200	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Sewage was overflowing from manhole No. 834 onto the street.  A portion of the sewage spill entered the catch basin in front of 12934 Pinetree Lane, which leads to PD 1282 - La Mirada Creek, unknown drain, Municipal Separate Storm Sewer System (MS4), PD 0001 (La Mirada Creek), PD 0020 (La Mirada Creek), PD 0031 (La Mirada Creek), BI 4701 - Line F - La Mirada Creek, PD 0142 (La Mirada Creek), and Coyote Creek - North Fork. 	Y	33.91327	-118.01132							01/10/2024 17:01	CWEA SSCSC Manhole Gauge	The start time is obtained from the reporting party, the end time is when the crew clears the obstruction, and the overflow stops.	Root Intrusion		Gravity Mainline		Vitrified Clay		49	N/A	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Upon arrival, discovered sewage discharging from MH 834 into the catch basin in front of 12934 Pinetree Lane.  We proceed to contain the spill with absorbent socks blocking the catch basin of 12934 Pinetree Lane. Used Hydro and Rodder equipment's to break down the mainline root stoppage. Contained portion of sewage spill and returned to sanitary sewage system. All required agencies were notified.	Other (specify below)	Will inspect sewer using CCTV to determine if further actions are needed. 	Will inspect sewer using CCTV to determine if further actions are needed. 	N/A	01/10/2024 19:00	Will inspect sewer using CCTV to determine if further actions are needed. 	Y	Will inspect sewer using CCTV to determine if further actions are needed. 	03/11/2024 12:00	La Mirada Creek / Coyote Creek	Other (specify below)	Creek	La Mirada Creek and Coyote Creek	No impact. 	Other (specify below)	No impact.	Los Angeles County Flood Control District	0	N	N											Will inspect sewer using CCTV to determine if further actions are needed. 	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	891985	1.4	Certified	Kent Vian	Asst. Deputy Director	12-JAN-24	24-JAN-24	24-JAN-24	Category 1 Spill	NOT# 40201051560 18580 POLVERA DR.	01/09/2024 09:17	01/09/2024 10:15	01/09/2024 09:14	01/09/2024 10:52	24-0129		THE SPILL APPEARANCE POINT WAS FROM A MANHOLE SOUTHEAST OF 18580 POLVERA DR. IN AN OVERGROWN EASEMENT/CANYON AREA.	33.04312	-117.0572	Manhole	N/A	N/A	2520	THE SPILL TRAVELED NORTHWEST AND SETTLED INTO THE SOIL	N	N/A	0	0	THE SPILL DISCHARGED INTO AN OPEN AREA AND SETTLED INTO THE SOIL.	2520	0	Other (specify below); Unpaved Surface	OPEN AREA BEHIND RESIDENCE	THE SPILL TRAVELED NORTHWEST DOWN THROUGH AN OPEN AREA AND SETTLED INTO THE SOIL.	Y	33.04412	-117.05931							01/09/2024 11:20	VISUAL CALCULATED METHOD.	THE SPILL START TIME ASSUMPTION WAS WHEN DISPATCH RECEIVED THE CALL FROM THE CONSUMER REPORTING THE SPILL.	Root Intrusion	N/A	Manhole	N/A	Vitrified Clay	N/A	38	THE IMPACTS OF THE SPILL WERE TO A DRY CREEK BED.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow	N/A	UNABLE TO CONTAIN THE SPILL DUE TO NO VEHICLE ACCESS. PICKED UP PAPER DEBRIS AROUND THE MANHOLE. MITIGATED SPILL BY RELIEVING THE STOPPAGE VIA HAND RODDING.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause	N/A	RELIEVED ROOT BLOCKAGE FROM THE MANHOLE. MANAGEMENT AND PLANNERS WILL HAVE A MEETING TO DISCUSS A FREQUENCY CHANGE.	ADJUSTMENT OF CLEANING SCHEDULE WILL BE COMPLETE WITHIN 2 WEEKS OF SPILL DATE.	01/09/2024 18:30	IT WAS DISCOVERED THROUGH CCTV AND WHEN THE SEWER SPILL WAS RELEIVED THAT THE CAUSE WAS ROOTS IN THE MANHOLE.	N	N/A		DRY EPHEMERAL STREAM	Stream/Creek	N/A	AN EPHEMERAL STREAM WITH AN ANNUAL MEAN FLOW OF <1 CFS AND AN ANNUAL MEAN VELOCITY OF 0.68 F/S.	NO AQUATIC LIFE IMPACTED	Other (specify below)	NO PUBLIC ACCESS IMPACTED	N/A	0	N	N	N/A	N/A									N/A	
4	4SSO11423	Active	Long Beach Water Dept. CS (SSO program)	Long Beach City, Water Dept	891987	1.2	Certified	Jennifer Rojas	Senior Director 		29-JAN-24	29-JAN-24	Monthly Category 3 Spill	5305 E. Pacific Coast Hwy Long Beach CA	12/09/2023 09:55	12/09/2023 10:20	12/09/2023 09:45				The Spill Originated at the 6  city sewer lamp hole on the street.	33.77151	-118.11844	Other Sewer System Structure	City sewer 6  VCP lamp hole.		631	The spill originated at the 6  City sewer lamp hole and traveled down the street curb and gutter into the Long Beach storm drain catch basin. The response crew implemented containment measures by placing barriers to prevent the further spread of the spill.	Y	The spill affected a Long Beach Public Works gutter catch basin. This catch basin is connected to a storm drain and a stormwater vault. The purpose of this system is to collect runoff from Pacific Coast Highway and transport it to other stormwater conveyance systems.	600				631	Drainage Conveyance System; Street/Curb and Gutter (2 3)		The sewage exited the system at the 6  city sewer lamp hole on PCH and traveled 600 feet down the street curb and gutter into the Long Beach storm drain catch basin. Sandbags were strategically placed to contain the spill at the street curb and gutter. The vault collected the spill, and Ocean Blue was able to vacuum and clean the street, gutter, and conveyance system.	Y	33.77282	-118.11933							12/09/2023 11:45	The spill volume was determined using the formula (Length x Width x Depth) + (Area x 7.48). In this case, the dimensions were 600 feet x 0.33 feet x 0.0208 feet x 7.48, which resulted in 30.80 gallons at the street curb and gutter. Additionally, the spill volume at the Conveyance system was calculated by multiplying 5 gallons per minute by 120 minutes and adding 600 gallons, resulting in a total of 631 gallons.	Upon discovering a sewer spill at 5305 E. Pacific Coast Hwy, the manager of Greenfield Restaurant, promptly contacted Long Beach Utilities (LBU) to report the incident. The manager reported noticing the spill at 10:00 am, but it was already reported to LBU at 9:55 am by another party. The spill had a flow rate of 5 gallons per minute (GPM) over a period of 120 minutes, resulting in a total volume of 600 gallons. Visual observations were also used to calculate the volume in the curb and gutter (31 gallons). The total spill volume was 631 gallons.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		62	The spill had a localized impact on the area surrounding the 6  City sewer lamp hole on Pacific Coast Highway in Long Beach. It initially spread down the street curb and gutter and entered the storm drain catch basin. However, containment measures were quickly implemented to prevent further spread. The spill affected a Long Beach Public Works gutter catch basin, which is connected to a storm drain and a stormwater vault. The spill was successfully contained and cleaned up by Ocean Blue, who vacuumed and cleaned the street, gutter, and conveyance system. The spill volume was estimated to be approximately 31.17 gallons at the street curb and gutter, and an additional 600 gallons in the conveyance system. 	N	Cleaned Up (specify below); Restored Flow		The response team quickly implemented containment measures by placing barriers to prevent the further spread of the spill. Sandbags were strategically placed at the street curb and gutter to contain the spill. Additionally, Ocean Blue promptly vacuumed and cleaned the street, gutter, and conveyance system to ensure proper cleanup and prevent any further environmental impact.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		The Pipe segment has undergone thorough hydro-jetting and has been added to our list of hot spots. It will be maintained frequently. We will continue with our preventive maintenance program and ensure that our staff follows proper cleaning practices.		12/09/2023 13:15	On 12/11/2023, a post-CCTV inspection was conducted to investigate the cause of the main line stoppage. The inspection revealed that the main cause of the stoppage was grease. To address this issue, a thorough hydro-jetting process was performed on the affected pipe segment. This process effectively removed the accumulated grease and restored the flow of wastewater.		No ongoing investigation at this time.	12/11/2023 09:05														The Long Beach Health Department was notified and arrived at the scene to supervise the cleanup of the contaminated area. The Long Beach Health Department will conduct FOG inspections, specifically at Greenfield Restaurant, as it is the only lateral tap on this mainline. These inspections aim to identify FOG-related concerns and ensure compliance with regulations.	This pipe segment has been added to our list of hot spots that require more frequent attention. We will also investigate the reason for the grease discharge by conducting a FOG inspection.	This Pipe segment will be maintained every 90-days, as part of our Hot Spots List.	There is no planned rehabilitation or replacement of this segment.	CCTV inspections were conducted to identify the cause and precise location of the grease blockage. Once the cause and location were determined, appropriate measures were taken to thoroughly clean the blockage and interior walls.	None planned.	The segment will be placed on our repeat hotspot books for more frequent attention. Additionally, a FOG inspection will be performed at this segment, and the Long Beach Health Department will retain the inspection records.	We will continue following our spill response procedures on containment and clean-up efforts.	No ongoing investigation at this time.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	891879	2.3	Certified	Tyree Jackson	Compliance Officer	05-JAN-24	12-JAN-24	12-JAN-24	Category 1 Spill	2906 Carmel st	01/02/2024 17:41	01/02/2024 18:45	01/02/2024 17:30	01/11/2024 12:55	24-0027		We have a manhole on the easement at 2906 Carmel St overflowing at 10 gpm flowing down the hill side onto the curb and gutter and into the storm inlet. Note (1/11/20224) Staff confirmed overflowing manhole is part of stormwater collection system and not related to sanitary sewer.	37.80158	-122.20291	Other (specify below)	Manhole of urban stormwater drainage pipeline located on the easement in back yard of 2609 Carmel St.	None	900	The spill boundaries was from the M/H down the dirt hillside onto the curb & gutter into the storm inlet.	Y	Stormwater collection system	0	900	Spill discharged stormwater into public right-of-way. No direct surface water impact.	900	0	Drainage Conveyance System; Street/Curb and Gutter (2 3)		No wastewater discharge occurred during this spill event.	Y	37.77565	-122.21048							01/02/2024 19:00	Visual estimation.	Start time was based on eyewitness account of the caller. End time was based on responding crew.	Other (specify below)	Spill occurred from stormwater collection system.	Other (specify below)	Failure occurred in stormwater collection system.	Other (specify below)	Failure occurred in stormwater collection system.	29	Spill occurred from stormwater collection system. No impact to surface waters or environment occurred.	Y	Other (specify below)	Spill occurred from stormwater collection system.	Spill occurred from stormwater collection system.	Other (specify below)	Spill occurred from stormwater collection system.	Spill occurred from stormwater collection system.	Spill occurred from stormwater collection system.	01/02/2024 20:30	Spill occurred from stormwater collection system.	N	Spill occurred from stormwater collection system.	01/11/2024 15:00	NA	Other (specify below)	Spill occurred from stormwater collection system.	Spill occurred from stormwater collection system.	None.	Other (specify below)	Spill occurred from stormwater collection system.	N/A	0	N	N											Spill occurred from stormwater collection system.	
2	2SSO10181	Active	San Leandro CS	San Leandro City	892004	1.2	Certified	Charles Hayes Morehouse	Water Pollution Control Manager	12-JAN-24	24-JAN-24	24-JAN-24	Category 1 Spill	14459 Birch Street	01/10/2024 09:36	01/10/2024 09:50	01/10/2024 09:20		-		Manhole in Birch Street. Internal reference number is 144+23. Blockage was on a 6  gravity main serving 14 upstream single family homes.	37.69992	-122.16052	Manhole			56	Overflow occurred during rain conditions. Upon arrival, the manhole was charged but not actively discharging and there was no evidence (paper, solids) of discharge.	Y	Closest storm line was a SWI in curb to 24  RCP stormwater line. 	0	56	Discharge flowed into storm line that empties into a flood control channel that then flows to San Francisco Bay.	56	0	Drainage Conveyance System that discharges to surface water		Spill flowed to storm inlet and then to a flood control channel that discharges into San Francisco Bay south of the San Leandro Marina.	Y	37.69088	-122.18369							01/10/2024 09:40	Used the  upstream connection method.  There are 14 single family homes upstream of the manhole. Using the estimated spill duration of 20 minutes and standard average morning flow of 0.2 GPM per house hold, spill volume was calculated to be 56 gallons. This low volume is supported by the lack of any evidence of discharge.	The overflow was reported at 09:36 by a caller that left no return information. When the crew arrived at 09:50, the manhole was charged but not discharging. There was no evidence of a discharge, which indicates it was low volume and short duration. It was not possible to capture and return to sanitary sewer because it was raining. Therefore, estimed start time was before the call at approximately 09:20 and the end time was before the crew arrived at 09:50.	Debris-Rags; Debris-wipes/Non-disposables		Gravity Mainline		Vitrified Clay		60	No adverse effects expected from the spill because of the low estimated volume.	N	Restored Flow		Spill response activities included hydrojetting of the charged line to remove the partial blockage. Spill containment and cleanup was not possible because it was raining. The short duration rain event was not a cause of the spill as flow was normal after removal of the obstruction.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		The location will be added to the weekly checklist until it is determined it is a one-time issue. The sewer line will be inspected using CCTV by February 1, 2024.	Added to weekly checklist: Starting January 15, 2024 CCTV Inspection: Completed by February 1, 2024	01/10/2024 13:39	Maintenance staff observed a soft plug in which rags and baby wipes discharged. CCTV inspection showed no issues with the sewer line that would cause the problem.	N			San Francisco Bay	Other (specify below)	Bay	Discharged via flood control channel to the San Francisco Bay just south of the San Leandro Marina.	None	Other (specify below)	None due to low volume of spill.	N/A	0	N	N												
5S	5SSO10941	Active	El Dorado Hills CS	El Dorado Irrigation District	892005	1.3	Certified	John Chavers	Collection System Supervisor		22-JAN-24	22-JAN-24	Monthly Category 3 Spill	EDH-2023-12-09	12/29/2023 11:05	12/29/2023 11:05	12/29/2023 11:15				See Attachment	38.680046	-121.076815	Manhole			381	See Attachment	Y	Roadside ditch	381				381	Unpaved Surface		See Attachment	Y	38.680046	-121.076815							12/29/2023 11:15	See attachment	See Attachment	Root Intrusion		Manhole		Concrete		50	See attachment	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned All Spill to Sanitary Sewer System		See Attachment	Added Sewer to Preventive Maintenance Program; Repaired Facilities or Replaced Defect		See Attachment		12/29/2023 13:40	See Attachment		See Attachment	12/29/2023 16:30														NA	Work order 1155352 created for chemical root control assessment and addition to that program.	Work order 1155352 created for Chemical Root Control assessment and addition to the program included in attachment 	To be assessed and added to Chemical root control program. Other recommendations would result in addition to rehabilitation contract.	Root cut and CCTV inspection	Not applicable at this time	WO 1155352 included in attachment. 	See attachments	See Attachment	
2	2SSO10172	Active	Ross Valley Sanitary District CS	Ross Valley SD	892007	1.3	Certified	Paul Bruemmer	O&M Manager 	12-JAN-24	23-JAN-24	23-JAN-24	Category 1 Spill	387 Madrone Ave, Larkspur, CA	01/10/2024 15:31	01/10/2024 16:33	01/10/2024 15:00	01/10/2024 20:05	24-0160		The Spill had multiple appearance points, (1) Districts end of the line rod hole L220.250, (2) lower private clean out, and (3) upper private clean out and, inside the residence in the downstairs shower drain. 	37.93146	-122.54989	Backflow Prevention Device; Inside Building or Structure; Lateral Clean Out (Private); Manhole			1701	The spill had multiple appearance points, (1) Districts end of the line rod hole L220.250, (2) lower private clean out, and (3) upper private clean out, Downstairs shower drain. The majority of the spill was centralized to standing puddles located near and around the multiple appearance points. The upper clean out discharge point did reach the private DI which transported a small fraction of the spill down to the Larkspur Creek. The spill occurred on private property excluding the portion that entered the private DI. 	Y	One spill appearance point (upper clean out) drained into a private storm DI, which daylighted down an embankment and discharged approximately 6' from Larkspur Creek.  	0	341	The only appearance point to discharged to Larkspur Creek(upper private clean out) discharged approximately 378GAL.  27GAL saturated into the ground around the DI and approximately 351GAL entered the private DI. Approximately 341g reached the creek. 	341	0	Building or Structure; Drainage Conveyance System that discharges to surface water; Surface Water; Unpaved Surface		There were 4 spill destinations: inside the building downstairs shower drain, the District rod hole, the upper private clean out at backflow prevention device and the lower private clean out. At the time staff arrived, all 3 outside spill locations were actively overflowing. The upper private clean out traveled into a private DI where it daylighted to an unpaved surface and ultimately a small portion of the spill went into Larkspur Creek.	Y	37.93146	-122.54989							01/10/2024 18:09	The staff were able to calculate a flowrate from all 3 active overflow locations. These flowrate calculations were used with the known spill duration and rvsd spill flow estimation chart to determine the volume of the spill. Additionally, staff used volume by area calculations to further determine the amount of the spill that entered surface water. 	The spill start time was based on eye witness account. The spill end time was determined by when the blockage was broken, which ended all overflowing locations. 	Debris from Lateral; Debris-wipes/Non-disposables; Other (specify below)	CCTV inspection revealed an area within the manhole channel that will need to be repaired in order to create a smother flow transition through the manhole. This is up stream of the spill blockage in the main. 	Gravity Mainline		Polyvinyl Chloride (PVC)		5	The main impact of the spill occurred in the private residence. An unknown amount of the spill discharged from a shower drain and reached the residence carpet. The discharge from the District rod hole and lower private clean out, both discharged directly to unpaved areas and saturated the soil. The last discharge location (upper private clean out) did travel through a private convyence system to surface water. 	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow	Utilized professional mitigation company to mitigate spill effects within residence. Staff cleaned all solid debris waste from affected area. 	Staff broke blockage with a combo sewer cleaner truck. Due to the nature of the property, staff were unable to maneuver the combo truck further into the property to utilize the vacuum. Staff cleaned up the little paper that was discharged and the homeowner had most of the inside cleaned up. The District did have a restoration company professionally clean the inside of the residence. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		The District has scheduled maintenance repairs in the up stream manhole to improve the flow channel. The District has also schedule informational outreach flyers to be hung with regards to  wipes cause clogs  to the homeowners upstream of the spill location. 	District notified of spill- 3:31pm Collection system worker arrival- 4:33pm Spill ended- 6:09pm CALOES notified- 7:03pm Marin county health notified- 8:05pm	01/10/2024 21:00	At the time the blockage was broken, the operator caught a large amount of wipes and paper towels. Further CCTV investigation revealed a high amount of wipes coming from upstream of the blockage. CCCTV investigation also revealed some channel repairs that are scheduled for repair in the upstream manhole. 	N			Larkspur creek 	Stream/Creek		Seasonal creek 	None	Other (specify below)	No impact to public	NA	0	N	N												
3	3SSO10334	Active	Seaside Co Sd CS	Seaside CSD	892013	1.2	Certified	Nisha Patel	District Engineer		26-JAN-24	26-JAN-24	Monthly Category 3 Spill	2000 Del Monte	12/22/2023 10:54	12/22/2023 11:14	12/22/2023 09:45				The spill originated from a manhole lid. There was only one appearance point	36.620083	-121.841597	Manhole			228	The spill originated at a manhole lid near 2000 Del Monte Boulevard, and ran due south, approximately 600 feet down the gutter pan, to a storm drain inlet. 	Y	Separate storm drain inlet	228				228	Drainage Conveyance System that discharges to surface water		The spill destination is a storm drain inlet located at approximate coordinates 36.618611, -121.842450. The spill did not spread beyond to gutter pan.	Y	36.618611	-121.84245							12/22/2023 11:23	Spill volume was measured by recovery into the Vactor Truck.	Caller provided the approximate spill start time. Spill end time was recorded by the crew members who responded.	Debris-Rags; Root Intrusion		Gravity Mainline		Vitrified Clay		70	Spill was fully captured. All areas and effected storm drain system was disinfected.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Crew restored flow to the sewer main by removing rag blockage. Crew contained and captured all of the spill. Vacuumed up with Vactor truck. Crew then disinfected and cleaned all effected areas.  Crew returned and CCTV the sewer main. A root ball was observed where the wye for the lateral at 2000 Del Monte enters the main line. The root ball was removed.	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		The segment of sewer main has been added to the quarterly cleaning program, and has been also been added to the list of annual root treatment locations.		12/22/2023 13:30	The line was CCTVd, and a root ball was found, located in the wye where the lateral for 2000 Del Monte met the main line. This root ball was catching rags and blocking the line. The crew cleared the root ball from the line.   The line was added to the quarterly jetting/cleaning program, and was also added to the annual root treatment location list.  Staff also performed an investigation of past SSOs at this location. Several SSOs were found since 2019, all of which were caused by root and rag blockages. The measures of quarterly cleaning/jetting, and annual root treatments, should be sufficient.		none	01/05/2024 15:36														not applicable	not applicable	Quarterly jetting/cleaning. Annual root treatment.	not applicable	CCTV inspection	None	not applicable	none	none	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	892015	1.4	Certified	Ameal McLaurin	Sewer Supervisor 2		16-JAN-24	16-JAN-24	Monthly Category 3 Spill	2043 Clemens Road, Oakland Ca	12/29/2023 21:29	12/29/2023 22:00	12/29/2023 21:00				Inside building lower floor bathroom shower drain overflowed onto the floor.	37.80946	-122.20788	Inside Building or Structure	Inside building lower floor bathroom shower drain overflowed onto the floor.		180	Inside building lower floor bathroom shower drain overflowed onto the floor.	N						0	Building or Structure		Inside building lower floor bathroom shower drain overflowed onto the floor.										12/30/2023 00:00	1GPM x 180 minutes = 180 Gallons	Start time was based on eyewitness account, the affected calling party. The end time was based when the responding crew released the blockage in the mainline.	Pump Station Failure - Controls; Root Intrusion		Gravity Mainline		Vitrified Clay		99	Inside building lower floor bathroom shower drain overflowed onto the floor.	Y	Property Owner Notified; Restored Flow	Claim packet was provided to the property owner for Restoration company to clean up the building.                	Claim packet was provided to the property owner for Restoration company to clean up the building. 	Added Sewer to Preventive Maintenance Program		Gravity Mainline has been placed on a 6-Month High Frequency Maintenance Program.		12/30/2023 00:30	CCTV inspection crews found and removed large amounts of rocks inside the mainline and to be in good condition.		Investigation has been completed.	01/02/2024 06:58														N/A	Gravity Mainline has been placed on a 6-Month High Frequency Maintenance Program.	Gravity Mainline has been placed on a 6-Month High Frequency Maintenance Program.	N/A	CCTV inspection was completed on 1/02/2024. 	N/A	Gravity Mainline has been placed on a 6-Month High Frequency Maintenance Program work order #1491642.	Gravity Mainline has been placed on a 6-Month High Frequency Maintenance Program work order #1491642.	Investigation has been completed.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	892016	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2		16-JAN-24	16-JAN-24	Monthly Category 3 Spill	7422 Greenly Drive, Oakland Ca	01/02/2024 08:40	01/02/2024 09:30	01/02/2024 08:30				Inside the building/structure shower floor drain.	37.77325	-122.16457	Inside Building or Structure	Inside the building/structure shower floor drain.		135	Inside the building/structure shower floor drain and flowed into adjacent room.	N						0	Building or Structure		Inside the building/structure shower floor drain and flowed into adjacent room.										01/02/2024 09:30	Calculated volume: 30'L x 15'W x .04'D x 7.48-Gal = 135 Gallons 	Start time was based on eyewitness account (resident). The end time was based when responding crew restored the flow in the mainline.	Root Intrusion		Gravity Mainline		Vitrified Clay		99	Inside the building/structure shower floor drain and flowed into adjacent room.	N	Other (specify below); Property Owner Notified; Restored Flow	Provided claim packet to resident for Restoration company to clean the affected areas in the building.	Provided claim packet to resident for Restoration company to clean the affected areas in the building.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Gravity Mainline has been placed on 3-Month High Frequency Maintenance Program, work order # 1491184.		01/12/2024 12:00	CCTV inspection found root intrusion along with construction pipe material debris to have been likely the potential cause of the overflow.		N/A	01/12/2024 12:00														N/A	Gravity Mainline has been placed on 3-Month High Frequency Maintenance Program, work order # 1491184.	Gravity Mainline has been placed on 3-Month High Frequency Maintenance Program, work order # 1491184.	N/A	CCTV inspection of the mainline was completed 1/12/24.	N/A	Gravity Mainline has been placed on 3-Month High Frequency Maintenance Program, work order # 1491184.	Gravity Mainline has been placed on 3-Month High Frequency Power Rodder Maintenance Program, work order # 1491184.	N/A	
1	1SSO10031	Active	Fortuna City CS	Fortuna City	892017	1.5	Certified	Jessie Suelzle	Utility Supervisor 	13-JAN-24	22-JAN-24	22-JAN-24	Category 1 Spill	loni drive	01/13/2024 12:30	01/13/2024 14:25	01/13/2024 10:26	01/13/2024 15:30	-		manhole located in 12 th st at loni dr 	40.59282	-124.15448	Manhole		spill appeared from manholes in 4 locations (12th and loni),(510 spring st),(end of randolph way),fortuna fire hall	115200	loni drive flowed into gutter than to storm drain randolph way flowed over bank into creek firehall flowed into storm drain spring street flowed into gutter than stromdrain.	Y	storm drain and direct creek access	12500	19000	storm drain discharges into randolph creek at the 12th st bridge	3410	12500	Drainage Conveyance System that discharges to surface water; Paved Surface; Surface Water		Manhole on 12th st at Loni Dr. Manhole at the end of Randolph Ln. Manhole on spring st. at first st.	Y	40.59212	-124.15455	40.59089	-124.15142	40.58715	-124.14806	40.5891	-124.14843	01/13/2024 21:00	City of Fortuna SSMP gallons per min picture guide. 	Spill start time was estimates by employees after notification of the SSO. Spill end time was 9:00 witnessed by employees.	Natural Disaster (specify below)	Heavy rains overtook the drainage capacity. 	Manhole		Concrete; Vitrified Clay		70	115,200 gallons lost, 12,500 gallons recovered in catch basin. 102,700 gallons went into Rohner creek.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Returned Portion of Spill to Sanitary Sewer System		Used vacuum to retrieve the spill in the contact basin., and to clean around other affected manholes.  	Other (specify below)	No corrective action can be taken, spill was result of a heavy rain storm.	No corrective action can be taken, spill was result of a heavy rain storm.	N/A	01/14/2024 16:30	Heavy rain storm caused SSO.	N			Rohner creek then into the eel river.	River; Stream/Creek		Rohner creek and the eel river.	Sewer was highly diluted with rain water.	Other (specify below)	no public impact.	N/A	0	N	Y	Sample taken out of fire hall manhole and Randolph manhole.	BOD results for manhole hole at fire hall - 38 mg/l BOD results for Randolph - 47 mg/l Ammonia Nitrogen without distillation for fire hall 1.2 Ammonia Nitrogen without distillation for Randolph - 1.5										
3	3SSO10347	Active	Watsonville CS	Watsonville City	892018	1.3	Certified	Ruben Tellez	Collection Systems Manager	18-JAN-24	22-MAR-24	22-MAR-24	Category 1 Spill	Intersection of Anna St and Holm Rd	01/13/2024 10:11	01/13/2024 10:20	01/13/2024 09:58	01/13/2024 10:30	24-0203		Spills only appearance was from the ventholes on the manhole in the intersection on Anna st and Holm Rd 	36.92581	-121.7872	Manhole			1370	Approximately two 3-inch plumes were pouring out from the vent/pick holes. Vent holes were measured at 3/4  and 1  	Y	The spill entered two Drain Inlets that combined into a single conveyance and one drain inlet that went directly to an outfall	609	0	The discharge point is into a creek that flows into Watsonville Slough	609	0	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water		Spill entered a marsh area 	Y	36.92291	-121.78736							01/13/2024 12:00	Several methods were used including, pick and venthole excel spreadsheet, gutter flow math, eyeball and volume area method	We relied on pictures and video taken in the field during the response to help determine what methods should be used	Debris from Construction		Gravity Mainline; Manhole		Vitrified Clay		33	The spill mainly impacted the intersection and the storm drains downstream from the spill including the waterway in upper Struve Slough	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Two combo trucks were used to respond to the spill. A plug was inserted at the lowest DI to begin containment of the spill. One combo truck was setup at that DI which was downstream of the spill to start capturing sewer that was entering from the curb runoff.  The second combo was setup downstream from the affected manhole to break the stoppage and return flow to normal.  Once the stoppage was cleared the second combo truck began washing down the area affected with sewer runoff into the plugged DI for the first Vactor to capture. Once the area was sufficiently cleaned the plug was removed and the captured water was returned to the sewer system. 	Other (specify below)	Cleaned out debris left by the construction company. performed preventative maintenance on all affected lines and manholes. 	Debris in sewer main including broken manhole lid, manhole hook and coldmix was dropped and left in the line from outside contractor	3/15/2024 all affected lines are scheduled to be inspected and cleaned	01/15/2024 15:05	After the stoppage was cleared we investigated affected manholes and found a number of them with construction debris left behind by a contractor. We followed up by inspecting all manholes they worked around and found most of them were left with construction debris. All debris were cleared out to prevent any more spills.	N			Struve Slough	Slough; Wetland		small waterway for storm runoff	None	Restricted Public Access		City of Watsonville 	0	N	N												
3	3SSO20005	Active	Watsonville CS	Watsonville City	892018	1.3	Certified	Ruben Tellez	Collection Systems Manager	18-JAN-24	22-MAR-24	22-MAR-24	Category 1 Spill	Intersection of Anna St and Holm Rd	01/13/2024 10:11	01/13/2024 10:20	01/13/2024 09:58	01/13/2024 10:30	24-0203		Spills only appearance was from the ventholes on the manhole in the intersection on Anna st and Holm Rd 	36.92581	-121.7872	Manhole			1370	Approximately two 3-inch plumes were pouring out from the vent/pick holes. Vent holes were measured at 3/4  and 1  	Y	The spill entered two Drain Inlets that combined into a single conveyance and one drain inlet that went directly to an outfall	609	0	The discharge point is into a creek that flows into Watsonville Slough	609	0	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water		Spill entered a marsh area 	Y	36.92291	-121.78736							01/13/2024 12:00	Several methods were used including, pick and venthole excel spreadsheet, gutter flow math, eyeball and volume area method	We relied on pictures and video taken in the field during the response to help determine what methods should be used	Debris from Construction		Gravity Mainline; Manhole		Vitrified Clay		33	The spill mainly impacted the intersection and the storm drains downstream from the spill including the waterway in upper Struve Slough	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Two combo trucks were used to respond to the spill. A plug was inserted at the lowest DI to begin containment of the spill. One combo truck was setup at that DI which was downstream of the spill to start capturing sewer that was entering from the curb runoff.  The second combo was setup downstream from the affected manhole to break the stoppage and return flow to normal.  Once the stoppage was cleared the second combo truck began washing down the area affected with sewer runoff into the plugged DI for the first Vactor to capture. Once the area was sufficiently cleaned the plug was removed and the captured water was returned to the sewer system. 	Other (specify below)	Cleaned out debris left by the construction company. performed preventative maintenance on all affected lines and manholes. 	Debris in sewer main including broken manhole lid, manhole hook and coldmix was dropped and left in the line from outside contractor	3/15/2024 all affected lines are scheduled to be inspected and cleaned	01/15/2024 15:05	After the stoppage was cleared we investigated affected manholes and found a number of them with construction debris left behind by a contractor. We followed up by inspecting all manholes they worked around and found most of them were left with construction debris. All debris were cleared out to prevent any more spills.	N			Struve Slough	Slough; Wetland		small waterway for storm runoff	None	Restricted Public Access		City of Watsonville 	0	N	N												
5S	5SSO10865	Active	Angels Camp CS	Angels City	892019	1.1	Certified	Dave Richard	City Engineer � Water/Wastewater		15-JAN-24	15-JAN-24	Monthly Category 3 Spill	725 Casey Street	12/08/2023 15:43	12/08/2023 16:00	12/08/2023 14:00				Back yard at 725 Casey Street, Lat 38.0838622, Lon -120.5539363	38.07294	-120.55339	Lateral Clean Out (Private)			600	Back patio and yard and open space behind the property	N						100	Unpaved Surface		Back patio and yard and open space behind the property	Y	38.07294	-120.55339							12/08/2023 16:30	Visual	Call from homeowner	Debris-General; Debris-wipes/Non-disposables		Lower Lateral		Polyvinyl Chloride (PVC)		30	Flow across patio, backyard, and open space behind property	N	Cleaned Up (specify below)	Scooped, raked, disinfected, hydrovac	Scooped, raked, disinfected, hydrovac	Other (specify below)	Notify resident to not use flushable wipes	Provide reminder in utility bills to not flush wipes into the sewer system		12/08/2023 16:30	Blockage consisted of wipes and debris, homeowners will be notified not to flush wipes		None	12/08/2023 16:30														n/a	Provide reminder in utility bills to not flush wipes into the sewer system	Mainline will be CCTVed within 3 years	None	None	None	O&M documentation already in place	More photographic documentation to be provided when maintenance crew arrives on scene	None	
1	1SSO10058	Active	Rio Dell City CS	Rio Dell City	892020	1.1	Amended	Sunshine Kelly	Wastewater Superintendent		24-JAN-24	24-JAN-24	Category 1 Spill	End of Painter Street Manhole	01/13/2024 10:00	01/13/2024 10:00	01/13/2024 10:00	01/13/2024 11:55	24-0204	23-JAN-24	The spill was located at the Painter Street manhole at 556 Painter St. Photos attached show spill location.	40.503117	-124.093756	Gravity Mainline; Manhole			81000	The spill was located at the Painter Street manhole and flowed down the gravel ditch away from the residential area toward the Eel River, river bar. Photos show the sandbags, and ditch in place to direct the flow.	N				Photographs show that the spill during daylight hours never made it to the river. Due to the rain accumulation the river rose to meet the spill in the late hours of the evening of 1-13-24. No pictures were taken of the river at this time due to the dark hours and unsafe weather conditions.	81000	0	Surface Water		The spill reached the Eel River, river bar, located at 40.503055, -124.091890	Y	40.503055	-124.09189							01/13/2024 21:00	The volume estimation was based on flow monitoring at the site as well as supervisory control from SCADA based on the trend of the Painter Street lift station wet well level and pump control and the influent flow data into the plant.	The methodology of the spill start time was based on supervisory control based on SCADA of the data collected on the Painter Street Pump station trend, and the rain gauge at the Wastewater treatment plant. We were prepared for the event and had sandbags, and signs placed at the site to respond as soon as it started.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Other (specify below)	The failure is that the sanitary sewer main at this location was constructed with a 90 degree turn at this manhole and the earthquake in December of 2022 destroyed private laterals allowing more I&I to enter this portion of the sanitary sewer system. An upsizing project for this section of the sanitary sewer system is in the works since 2019 and will hopefully see some forward momentum with state funding this spring and summer, before the next wet season.	20	Spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage and the property owners were made aware of the issue at this site location.	Y	Cleaned Up (specify below); Property Owner Notified	During and after spill the area was monitored to keep clean if there were any sewage debris. There were no debris that were noted.	Spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage was in place, property owners were notified and personnel frequently monitored at this site location.	Plan Rehabilitation or Replacement of Sewer		This site has a planned upsizing project in the planning phases for the past 6 years. Currently waiting on State funding to push the design process forward.	Meeting with the State Water Control Board and Engineering company GHD on January 24th, 2024, to discuss funding and scheduling of such.	01/13/2024 21:00	This SSO occurred due to the high levels of I&I. Several days of rain and saturation of the ground caused the pump station to become overwhelmed when large amount of rain occurred at once and caused the SSO at this location, the Painter Street manhole.	N			Eel River	River		The Lower Eel River.	No known observed impacts on aquatic life.	Public Closure		City of Rio Dell Wastewater Superintendent and the City of Rio Dell P.D.	2	N	Y	A sample was taken upstream in the river of the spill location; RSW-001U: Latitude/Longitude (40.496013, -124.093796) A sample was taken directly from the manhole at 556 Painter Street; RSW-001: Latitude/Longitude (40.503117, -124.093756) A sample was taken downstream in the river of the spill location; RSW-001D: Latitude/Longitude (40.508887, -124.111481)	Per the City of Rio Dell SSO Water Quality Monitoring Plan Samples were analyzed for E.coli and Ammonia.										
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	892022	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		16-APR-24	16-APR-24	Monthly Category 3 Spill	3219 North Dona Maria Drive	01/12/2024 22:53	01/12/2024 23:10	01/12/2024 22:53				The initial crew arrived at 11:10 P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.128898	-118.386121	Manhole		None.	121	Sanitary Sewer Overflow.	Y	City Owned Catch Basin.	121				121	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	On Friday, January 12, 2024 at 10:53 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 3219 North Dona Maria Drive (TG 562-H7). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 11:35 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 121 gallons of sewage backed out of the sewer as a result of the blockage. The sewage entered an adjacent City of Los Angeles owned catch basin located at 3211 North Dona Maria Drive. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	Y	34.128898	-118.386121							01/12/2024 23:35	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.  	Spill flowrate and volume determination based on flowout pickhole or opening Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening2inches Flowrate per pickole/opening (gpm)3gpm # of pickholes/openings1 Total flowrate (gpm)3gpm Duration of spill (minutes)42minutes Total flow (gallons)121gallons 	Root Intrusion		Gravity Mainline		Vitrified Clay		64	On Friday, January 12, 2024 at 10:53 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 3219 North Dona Maria Drive (TG 562-H7). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 11:35 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 121 gallons of sewage backed out of the sewer as a result of the blockage. The sewage entered an adjacent City of Los Angeles owned catch basin located at 3211 North Dona Maria Drive. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		On Friday, January 12, 2024 at 10:53 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 3219 North Dona Maria Drive (TG 562-H7). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 11:35 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 121 gallons of sewage backed out of the sewer as a result of the blockage. The sewage entered an adjacent City of Los Angeles owned catch basin located at 3211 North Dona Maria Drive. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	Inspected Sewer Using CCTV to Determine Cause		As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a semi-annual cleaning schedule. 		01/12/2024 23:35	On Friday, January 12, 2024 at 10:53 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 3219 North Dona Maria Drive (TG 562-H7). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 11:35 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 121 gallons of sewage backed out of the sewer as a result of the blockage. The sewage entered an adjacent City of Los Angeles owned catch basin located at 3211 North Dona Maria Drive. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   		None At This Time.	01/12/2024 23:35														None At This Time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a semi-annual cleaning schedule. 	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a semi-annual cleaning schedule. 	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a semi-annual cleaning schedule. 	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a semi-annual cleaning schedule. 	None At This Time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a semi-annual cleaning schedule. 	On Friday, January 12, 2024 at 10:53 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 3219 North Dona Maria Drive (TG 562-H7). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 11:35 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 121 gallons of sewage backed out of the sewer as a result of the blockage. The sewage entered an adjacent City of Los Angeles owned catch basin located at 3211 North Dona Maria Drive. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	None At This Time.	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	892036	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		16-APR-24	16-APR-24	Monthly Category 3 Spill	1205 East 25th Street	01/13/2024 11:30	01/13/2024 12:13	01/13/2024 11:30				The initial crew arrived at 12:13 P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.018906	-118.251328	Manhole			90	Sanitary Sewer Overflow Report.	N	None.	0				0	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	34.018906  -118.251328	Y	34.018906	-118.251328							01/13/2024 12:18	The SSO volume was estimated utilizing a standardized template which calculates the volume by using dimensional analysis.  	Volume of a spill contained in a rectangular area Length480feet Width1feet Depth0.3inches0.0250feet  12.00ft390gallons 	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		112	On Saturday, January 13, 2024 at 11:30 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1205 East 25th Street (TG 674-F1). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 12:18 PM. The cause of the blockage was attributed to Fats, Oils, Grease (FOG). All necessary clean-up was then performed.  It was estimated that approximately 90 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		On Saturday, January 13, 2024 at 11:30 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1205 East 25th Street (TG 674-F1). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 12:18 PM. The cause of the blockage was attributed to Fats, Oils, Grease (FOG). All necessary clean-up was then performed.  It was estimated that approximately 90 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule. 		01/13/2024 12:18	On Saturday, January 13, 2024 at 11:30 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1205 East 25th Street (TG 674-F1). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 12:18 PM. The cause of the blockage was attributed to Fats, Oils, Grease (FOG). All necessary clean-up was then performed.  It was estimated that approximately 90 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   		None At This Time.	01/13/2024 12:18														None At this time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule. 	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule. 	None At This time.	None At This time.	None At This time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule. 	On Saturday, January 13, 2024 at 11:30 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1205 East 25th Street (TG 674-F1). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 12:18 PM. The cause of the blockage was attributed to Fats, Oils, Grease (FOG). All necessary clean-up was then performed.  It was estimated that approximately 90 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	None At This Time.	
1	1SSO10001	Active	Arcata City CS	Arcata City	892078	1.2	Amended	Douglas Culbert	Deputy Director of Environmental Services		16-JAN-24	16-JAN-24	Category 1 Spill	West End Road MH0020	01/13/2024 13:00	01/13/2024 13:15	01/13/2024 13:00	01/13/2024 15:30	24-0210		Heavy rain event caused a surcharge in the collection system. The spill occurred at a manhole that takes flow from a force main at a nearby lift station as well as the flow from the Fieldbrook/Glendale CSD which contracts with the City to treat their sewage. 	40.89779	-124.07533	Manhole			1275	The spill occurred from one manhole that is at the edge of a small creek and flowed out of the holes in the lid down to the creek	N				Discharge came from a manhole	1275	0	Surface Water		Heavy rain event caused a surcharge in the collection system. The spill occurred at a manhole that takes flow from a force main at a nearby lift station as well as the flow from the Fieldbrook/Glendale CSD which contracts with the City to treat their sewage. 	Y	40.89779	-124.07533							01/13/2024 14:15	Manhole Overflow visual estimator. The discharged matched closest to the image that represented 5 gpm. It should be noted that the calculation was made based on a continuous 5 gpm flow from 1300-1715 although the flow was intermittent based on upstream manhole lift station pumping rates. This estimate is on the high side.	The City was notified by Fieldbrook/Glendale CSD  at 1300 on 1/13/24 that their pumps were  deadheading  which typically indicates a surcharge in the collection line that conveys their sewage into the City's system. This  is also a good indicator that the manhole that this flow dumps into is potentially full and close to overflowing. Staff arrived on scene at 1315 and noticed that when the pump was running from the upstream lift station that the manhole was discharging slightly into Janes Creek. Once the rain subsided and flows reduced the manhole level decreased and the overflow stopped. This was at approximately 1715 on the same day.	Flow Exceeded Capacity (Separate Collection System Only); Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Concrete		30	Heavy rain event caused a surcharge in the collection system. The spill occurred at a manhole that takes flow from a force main at a nearby lift station as well as the flow from the Fieldbrook/Glendale CSD which contracts with the City to treat their sewage. The impact was relatively minimal if any into a small creek.	Y	Other (specify below); Other Enforcement Agency Notified; Restored Flow	Ran lift station pumps in manual until the flows reduced enough to put the pumps in automatic operation.	The discharge ran directly from the manhole into the creek approximately 5 feet down an embankment. There was too much rain water in the vicinity to contain the spill with any mechanical means. Spill containment occurred when the pumps were able to keep up with the flows and levels dropped in the manhole.	Inspected Sewer Using CCTV to Determine Cause		CCTV is planned in the general area to ascertain why the flow did not continue normally downstream	24 hours	01/13/2024 18:00	Due to high rains and extreme I&I no further investigation is needed. 	Y	Looking at how the contracted CSD can improve their collection system to  not take in so much I&I. 	06/01/2024 12:00	Janes Creek	Stream/Creek		Creek/Stream	None	Other (specify below)	No public Access was being utilized at the time	City of Arcata	0	N	N											Looking at how the contracted CSD can improve their collection system to  not take in so much I&I. 	
5S	5SSO11061	Active	Sutter Creek CS	Sutter Creek City	892079	1.2	Certified	Daniel Ryan Lafontaine	Public Works Director		02-FEB-24	02-FEB-24	Monthly Category 3 Spill	40 Church Street	01/16/2024 10:00	01/16/2024 10:15	01/16/2024 08:00				Private resident called in about a spill in their back yard.  The cleanout was overfilling into their yard.  Spill was approximately 10 feet by 6 feet by a half inch of sewage.  	38.39153	-120.80123	Lateral Clean Out (Private)			250	Spill was contained by area in back of yard approximately 10 by 6 feet.	N						250	Unpaved Surface		The spill went from the cleanout to the surrounding grass.  Crew shoveled up and bagged spill contaminants.  Bleach solution used on remaining area to disinfect.  	N									01/16/2024 10:45	Area of spill was 20 feet by 10 feet by about 2-inches of sewage.  Calculated to about 250 gallons.	Notification of spill by resident was used for start time.  Assume that the spill was going on for an hour or so after morning usage.  Spill end time was once root that was logged in pipe was removed by snake.	Root Intrusion		Upper Lateral		Vitrified Clay		75	Spill went onto lawn area 	N	Cleaned Up (specify below); Restored Flow		Lawn was cleaned up by crew after clearing the blockage. and a mild bleach was used to disinfect.   Will lay new sod down.	Inspected Sewer Using CCTV to Determine Cause		A bleach solution was applied to the grass to disinfect.  The line was investigated to determine the extent of the problem.  The line was fully deteriorated to the cleanout on Church street.		01/19/2024 13:16	Line had infiltration causing line to be compromised.  Line will be added to CIP.		None	01/19/2024 13:17														None	Pipe section will be added to CIP.  Line will be replaced as soon as money is available.	Cleaning will be increased to quarterly until line can be replaced.	Line will be pipe burst .	Inspected to cleanout on Church Street.	Line needs to be replaced.	None	Line had camera to verify extent.	None	
1	1SSO10001	Active	Arcata City CS	Arcata City	892078	2.2	Certified	Doug Culbert	Deputy Director of Environmental Services		16-JAN-24	16-JAN-24	Category 1 Spill	West End Road MH0020	01/13/2024 13:00	01/13/2024 13:15	01/13/2024 13:00	01/13/2024 15:30	24-0210		Heavy rain event caused a surcharge in the collection system. The spill occurred at a manhole that takes flow from a force main at a nearby lift station as well as the flow from the Fieldbrook/Glendale CSD which contracts with the City to treat their sewage. 	40.89779	-124.07533	Manhole			1275	The spill occurred from one manhole that is at the edge of a small creek and flowed out of the holes in the lid down to the creek	N				Discharge came from a manhole	1275	0	Surface Water		Heavy rain event caused a surcharge in the collection system. The spill occurred at a manhole that takes flow from a force main at a nearby lift station as well as the flow from the Fieldbrook/Glendale CSD which contracts with the City to treat their sewage. 	Y	40.89779	-124.07533							01/13/2024 17:15	Manhole Overflow visual estimator. The discharged matched closest to the image that represented 5 gpm. It should be noted that the calculation was made based on a continuous 5 gpm flow from 1300-1715 although the flow was intermittent based on upstream manhole lift station pumping rates. This estimate is on the high side.	The City was notified by Fieldbrook/Glendale CSD  at 1300 on 1/13/24 that their pumps were  deadheading  which typically indicates a surcharge in the collection line that conveys their sewage into the City's system. This  is also a good indicator that the manhole that this flow dumps into is potentially full and close to overflowing. Staff arrived on scene at 1315 and noticed that when the pump was running from the upstream lift station that the manhole was discharging slightly into Janes Creek. Once the rain subsided and flows reduced the manhole level decreased and the overflow stopped. This was at approximately 1715 on the same day.	Flow Exceeded Capacity (Separate Collection System Only); Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Concrete		30	Heavy rain event caused a surcharge in the collection system. The spill occurred at a manhole that takes flow from a force main at a nearby lift station as well as the flow from the Fieldbrook/Glendale CSD which contracts with the City to treat their sewage. The impact was relatively minimal if any into a small creek.	Y	Other (specify below); Other Enforcement Agency Notified; Restored Flow	Ran lift station pumps in manual until the flows reduced enough to put the pumps in automatic operation.	The discharge ran directly from the manhole into the creek approximately 5 feet down an embankment. There was too much rain water in the vicinity to contain the spill with any mechanical means. Spill containment occurred when the pumps were able to keep up with the flows and levels dropped in the manhole.	Inspected Sewer Using CCTV to Determine Cause		CCTV is planned in the general area to ascertain why the flow did not continue normally downstream	24 hours	01/13/2024 18:00	Due to high rains and extreme I&I no further investigation is needed. 	Y	Looking at how the contracted CSD can improve their collection system to  not take in so much I&I. 	06/01/2024 12:00	Janes Creek	Stream/Creek		Creek/Stream	None	Other (specify below)	No public Access was being utilized at the time	City of Arcata	0	N	N											Looking at how the contracted CSD can improve their collection system to  not take in so much I&I. 	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	892134	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	16-JAN-24	23-JAN-24	23-JAN-24	Category 1 Spill	1107 89th Avenue, Oakland Ca	01/14/2024 00:42	01/14/2024 02:50	01/14/2024 03:25	01/16/2024 09:20	24-0245		Lamp-Hole in the driveway was overflowing to the public sidewalk, to gutter and to the storm inlet, from there the storm line flows to Elmhurst creek. (Tidal creek).	37.74841	-122.17994	Other (specify below)	Lamp-Hole in the driveway		1625	Lamp-Hole in the driveway was overflowing to the public sidewalk, to gutter and to the storm inlet, from there the storm line flows to Elmhurst creek. (Tidal creek).	Y	Elmhurst creek (Tidal creek).	0	1625	Elmhurst creek (Tidal creek).	1625	0	Other (specify below); Surface Water	Lamp-Hole in the driveway was overflowing to the public sidewalk, to gutter and to the storm inlet, from there the storm line flows to Elmhurst creek. (Tidal creek).	Lamp-Hole in the driveway was overflowing to the public sidewalk, to gutter and to the storm inlet, from there the storm line flows to Elmhurst creek. (Tidal creek).	Y	37.74841	-122.17994							01/14/2024 03:25	Start was based eyewitness account. End time was based when line was opened up.	325 min x 5gpm = 1,625 gallons.	Debris-wipes/Non-disposables; Other (specify below)	Baby wipes.	Gravity Mainline		Vitrified Clay		90	Lamp-Hole in the driveway was overflowing to the public sidewalk, to gutter and to the storm inlet, from there the storm line flows to Elmhurst creek. (Tidal creek).	Y	Mitigated Effects of Spill (specify below); Restored Flow		Staff removed three buckets of toilet paper and washdown gutter area.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Staff wrote up five spot repairs and placed line on capital improvement project list. Work order # 1494744.	Line was added to the sewer preventive maintenance program.	01/14/2024 13:30	CCTV located five broken spot repairs.	Y	None.	01/14/2024 15:25	Elmhurst creek. (Tidal creek).	Other (specify below)	Elmhurst creek. (Tidal creek).	Elmhurst creek. (Tidal creek).	None.	Other (specify below)	None.	N/A	0	Y	N											None.	
2	2SSO10088	Active	Albany City CS	Albany City	892135	1.3	Certified	Mark Hurely	Public Works Director/City Engineer	17-JAN-24	29-JAN-24	29-JAN-24	Category 1 Spill	404 Talbot Ave. Albany CA 94706	01/14/2024 13:00	01/14/2024 13:45	01/14/2024 10:05	01/14/2024 15:03	24-00223	29-JAN-24	The blockage that caused the spill occurred along a mainline sewer located in an easement between Talbot Ave and Cornell Ave. The blockage was located approximately 120ft east of MH 10-101-19 (MH located at 407 Cornell). The appearance point was a curb-cleanout at 404 Talbot Ave. The spill exited the cleanout flowed down the driveway to the curb/gutter. The spill continued north along the curb/gutter in front of 404 and 400 Talbot, approximately 48 feet, and entered a catch-basin (CER16-022) that discharges to Cerrito Creek. 	37.89845	-122.29797	Lateral Clean Out (Private)			480	The boundaries of the spill are detailed on Page 6 of the attached Spill Crew Report 1.  The boundary includes an area: A1= 8'x1.5' approximately and 0.5 inch-depth in the driveway/curb-gutter in front of 404 Talbot; and  A2=40'x1.0' approximately and 0.25 inch-depth  on the gutter in front of 404 and 400 Talbot.  Photographs of the driveway and gutter are attached.	Y	Spill entered drainage conveyance system at catch basin CER16-022, located near the north property line of 400 Talbot. Drainage conveyance system is an 12-inch pipe that conveys flows from catch basin CER16-022 to an outlet under the culvert at Cerrito Creek. 	5	0	The discharge point is located under the Talbot Ave's culvert, no pictures were taken. 	465	15	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		The spill exited the curb cleanout, at 404 Talbot, flowed down the driveway to the curb/gutter. The spill continued north along the curb/gutter in front of 404 and 400 Talbot, approximately 48 feet, and entered a catch-basin (CER16-022) that discharges to Cerrito Creek.	Y	37.89845	-122.29797	37.89858	-122.29798					01/14/2024 14:05	-Based on field observations,  -Calculating the dimensions of the wetted area  -Using the  City of San Diego Metropolitan Wastewater Department Reference Sheet to Estimate Spills  to determine the flow rate  -Multiplying by the duration time of the spill	The homeowner provided information to establish the spill start time. The City cleared the blockage in the main line which established the end time.	Debris-General; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		90	During spill, containment and clean-up efforts, impacts included temporary closure of sidewalk and immediately adjacent roadway for response efforts. Following spill resolutions, no further impacts were observed during multiple site visits. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Crew cleared mainline blockage to restored the flow. The driveway, sidewalk and gutter were cleaned using the City's combination vacuum truck that was located in front of the catch basin CER16-022, by the north property line of 400 Talbot.	Adjusted Schedule/Method of Preventive Maintenance; Plan Rehabilitation or Replacement of Sewer	Add outreach materials locally for prevention of FOG into sewer and adding city-wide distribution of notice to contact DPW or APD to report spills.	The underlying cause of this spill is FOG.  This line is already a hot spot and is cleaned every 6 months.  We have increased the cleaning cycle to quarterly.  We are also engaging with EBMUD to send FOG information to properties tributary to the SSO through the regional FOG Program.  The City is in the process of relocating and upgrading this line to a parallel street to the south (Brighton Ave). The replacement line will be appropriately sized, sag free and will have better maintenance access, all of which will provide better protection from the creek. Construction of this replacement line is targeted for FY26.   	The increased maintenance schedule will be implemented immediately. The replacement project is targeted for FY26.	01/14/2024 15:30	Upon determining the mainline section were the blockage happened and using the City's system maps, the Crew identified the most accessible maintenance hole down stream of the blockage. The Crew then began flushing the line upstream until hitting the blockage and then breaking through it. As part of the cleaning process, a mesh basket is inserted into outlet of the maintenance hole to catch the solids/debris causing the blockage, which in this case was grease and general debris.	N			Cerrito Creek	Stream/Creek		Cerrito Creek is one of the watercourses running out of the Berkeley Hills into San Francisco Bay and forms the boundary between Alameda County and Contra Costa counties and between the cities of El Cerrito and Albany, and Richmond and Albany.	None was observed	Other (specify below)	None, culvert discharges at a location without public access and creek flows were high after a storm event. 	N/A	0	N	N												
4	4SSO10388	Active	Glendale City CS	Glendale City	892139	1.1	Certified	Dan Hardgrove	Assistant Director of Public Works		01-FEB-24	01-FEB-24	Monthly Category 3 Spill	2936 Graceland Way	01/10/2024 10:45	01/10/2024 11:02	01/10/2024 05:50				1st appearance point inside private property, lower level bathroom/ bedroom to 2936 Graceland Way. 2nd appearance point, back-flow valve cleanout, spill leading to backyard grass area, same property.	34.16935	-118.20622	Backflow Prevention Device; Inside Building or Structure			221	Spill inside private property contained by homeowner with shop vacuum (approximately 15 gallons). Spill from backflow valve clean out discharged to backyard grass area approximately 312 gallons.  	N						0	Building or Structure; Other (specify below)	Grass area in backyard.	Grass area in backyard of 2936 Graceland Way.										01/10/2024 11:11	Preliminary spill volume estimate based on 3.06 GPM multiplied by 321 minutes (start 5:50am end 11:11am). GPM based on average single family home water usage of 200 gallons per day, 22 homes connected to City Sanitary Main Line segment where stoppage occured. Assume 2/3rds underflowed, 1/3rd overflowed. 321 minutes X 1/3rd (3.06 gal/min)= 327 gallons overflowed. See attachment for equation.   Revision 1/30/2024. Used data from Glendale Water & Power Smart-Meter water readings for homes connected to segment of City Sanitary Main Line where stoppage occured. Volume estimate based on cubic feet of water usage between start time and end of spill event. Total cubic feet of water usage data 88.6 ft3 X 7.48 gals.= 662.72 gallons, divided by 321 mins.= 2.06 GPM. An assumption of 2/3rds underflow (drainage) is made based on observation by a trained eye of underflow observed at downstream Sewer Manhole during stoppage relief. 1/3rd of 2.06 GPM= 0.68 GPM X 321 mins.= 220.9 total gallons.	Homeowner first noticed a wetted area in downstairs bathroom at 6:00 am, did not report till after 10:00 am. End time reported by City Crew after relieving stoppage from downstream manhole.  Revision 1/30/2024. Smart-Meter water meter data shows that between the start time and end of spill a total of 88.6 cubic feet of water was used by homes connected to segment of city sanitary main line where stoppage occured.  	Pipe Structural Problem/Failure - Controls; Root Intrusion		Gravity Mainline		Vitrified Clay		63	Some water damage to inside of property and sanitary spill into backyard grass area, this will be absorbed by ground.	N	Property Owner Notified; Restored Flow		Upon arrival resident was already containing spill inside private property with shop vac. Instructed Crew to set-up at downstream manhole and relieve stoppage.	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		CCTV inspection found multiple fractures with protruding roots, cause of stoppage. This has been reported to Engineering for an expedited spot repair.		01/10/2024 11:45	See 20.b Engineering has approved for immediate spot repair. Will meet with W.A Rasic, city contractor this week for planning.		Will obtain Smart Water Meter readings from Glendale Water & Power to better estimate spill volume before certification.	01/12/2024 15:19														N/A	N/A	N/A	See comment on 20.b	CCTV inspected on 01/11/2024, communicated defects to Engineering Department  on 01/12/2024 for expedited repair.	N/A	N/A	N/A	Will obtain Smart Water Meter readings from Glendale Water & Power to better estimate spill volume before certification.	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	892144	1.3	Certified	John J. Hough	San Dist. Superintendent	17-JAN-24	25-JAN-24	25-JAN-24	Category 1 Spill	337621	01/13/2024 09:27	01/13/2024 10:09	01/13/2024 08:00		-		See attached Spill Map with Photos.	38.6107	-121.2932	Lateral Clean Out (Public)			30	See attached Spill Map with Photos.	Y	See attached Spill Map with Photos.	1	0	See attached Spill Map with Photos.	26	4	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		See attached Spill Map with Photos.	Y	38.61078	-121.29301	38.61458	-121.30295					01/13/2024 10:09	See attached Spill Volume Estimation.	See attached Spill Volume Estimation.	Root Intrusion		Lower Lateral		Vitrified Clay		60	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified the City of Rancho Cordova.	See attached Description of Event.	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		SacSewer inspected the lower lateral with CCTV on January 13, 2024. Based on the findings, SacSewer will replace the lower lateral.	Target finish date of lower lateral replacement is April 30, 2024.	01/13/2024 13:15	See attached Description of Event.	N			American River	River		The water body is a large river with high volume moderate flow.	No observed impacts to aquatic life.	Other (specify below)	No public access impact.	NA	0	N	N												
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	892147	1.2	Certified	John J Hough	San Dist M&O Superintendent	17-JAN-24	26-JAN-24	26-JAN-24	Category 1 Spill	337631	01/13/2024 15:20	01/13/2024 16:12	01/13/2024 12:00		-		See Attached Spill Map with Photos	38.6039	-121.2919	Lateral Clean Out (Public)			30	See Attached Spill Map with Photos	Y	See Attached Spill Map with Photos	0	0	See Attached Spill Map with Photos	27	3	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See Attached Spill Map with Photos	Y	38.60383	-121.29168	38.60024	-121.29388					01/13/2024 17:15	See Attached Spill Volume Estimation	See Attached Volume Estimation	Debris from Lateral		Lower Lateral		Vitrified Clay		58	No observed impacts of the spill	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified the City Rancho Cordova.	See Attached Description of Spill Event.	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		SacSewer inspected the lower lateral on January 13, 2024. Based on findings, SacSewer will replace the lower lateral.	Target finish date of lower lateral replacement is April 30, 2024.	01/13/2024 18:20	See Attached Description Spill of Event.	N			American River	River		The water body is a large river with high volume moderate flow.	No observed impacts to aquatic life.	Other (specify below)	No public access impacts.	N/A	0	N	N												
5F	5SSO11309	Active	Livingston City CS	Livingston City	892149	1.3	Certified	Tony Avina	Public Works Superintendent		17-JAN-24	17-JAN-24	Monthly Category 3 Spill	Walnut and Industial Av. 	12/24/2023 02:05	12/24/2023 02:15	12/24/2023 01:55				The downstream plug caused sewer to back up at the manhole at Walnut and Industrial drive.	37.38948	-120.71034	Manhole	none	none	300	 The spill from Walnut and Industrial Ave. manhole drained into a storm drain that is down stream of where the leak occurred.	Y	The storm drain that are downstream of the leak area drained into a storm water holding pond.	0				300	Other (specify below)	percolation pond where sewage run off settled and drained	sewage was captured in the storm drainage pond.	Y	37.38618	-120.71115							12/24/2023 02:05	kick the bucket method.	eyeball estimation of approximately five 55-gallon drum knocked over estimated 300 gallons..	Fats, Oil and Grease (FOG)		Manhole		Concrete		40	The downstream sewer plug caused the manhole to spill at Walnut and Industrial drive. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		discharge went into dedicated storm percolation pond. all areas where sewage spilled was Chlorinated and washed down. 	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source		Recently sent out fog flyers to public. adjust schedule preventive Maintenance.		01/16/2024 06:50	The downstream plug was found to have caused the sewer spill.  We will continue to monitor. 		none	12/27/2023 07:00														call OES when needed	schedule more routine maintenance	schedule more routine maintenance.  	not at this time	Inspect more often.	None at this time.	not yet.	continue spill response activities.	none	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	892156	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	17-JAN-24	24-JAN-24	24-JAN-24	Category 1 Spill	8000 Birch Street, Oakland Ca	01/16/2024 12:27	01/16/2024 13:04	01/16/2024 12:00	01/16/2024 13:36	24-0256		Manhole on Easement inside the school playground was overflowing.	37.75926	-122.17438	Manhole			750	Manhole on Easement inside the school playground was overflowing, it was flowing on the ground to a storm inlet inside the playground.	Y	39  storm line called Lion creek, Arroyo Viejo creek, and Damon Slough.	697	32	39  storm line called Lion creek, Arroyo Viejo creek, and Damon Slough.	32	718	Paved Surface; Surface Water		Paved surface and storm line. Manhole on easement overflowed in the rear of the school ground.	Y	37.75926	-122.17438							01/16/2024 13:15	Start time was based on school employees first witnessing the spill. End time was based on responding crew clearing blockage in the mainline.	75 min x 10 gpm min = 750-Gal Total Spill. Recovered from paved surface: 565' L x .25' w x .02' D x 7.48 Gal = 21 Gal. Recovered from storm drain: 582' L x 2' W x .08 D x 7.48 Gal = 697. Total Recovered 697 + 21 = 718 Gallons. Total lost in storm line - 750-718 = 32 Gallons. 	Fats, Oil and Grease (FOG)		Manhole	Manhole on easement in the rear of the school overflowed.	Vitrified Clay		90	Seven hundred and fifty gallons overflowed from a manhole on an easement onto the paved surface and into a storm inlet.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow	Sewer staff washed down affected areas, and vacuumed storm line.	Sewer staff washed down affected areas, and vacuumed storm line.	Added Sewer to Preventive Maintenance Program		Line was placed on sewer preventive maintenance program.	Line was placed on sewer preventive maintenance program.	01/16/2024 16:30	CCTV report showed sewer main has been cleaned and in good condition.	N			 Lion Creek, Arroyo Viejo Creek, and Diamon Slough	Stream/Creek		Underground rainstorm line that day lights on 73rd Avenue and International Blvd.	None.	Other (specify below)	None.	N/A	0	Y	N												
9	9SSO10654	Active	City of Lemon Grove CS	Lemon Grove City	892158	1.2	Certified	Israel Murguia	Public Works Director		31-JAN-24	31-JAN-24	Monthly Category 3 Spill	1615 Fairfax	12/03/2023 20:25	12/03/2023 20:45	12/03/2023 20:00				Failure occurred within an easement manhole located in the backyard of 7633 Canton Drive.  Single appearance point at manhole located in front of 1615 Fairfax 	32.72242	-117.03028	Manhole			425	Failure occurred within an easement manhole located in the backyard of 7633 Canton Drive.  Single appearance point at manhole located in front of 1615 Fairfax.  Discharge flowed North on Fairfax and entered curb inlet located at the Southeast corner of Fairfax and Canton.  Discharge was fully contained and recaptured at downstream storm-drain cleanout located at 7610 Canton Drive	Y	Discharge entered curb inlet located at the Southeast corner of Fairfax and Canton.  Discharge was fully contained and recaptured at downstream storm-drain cleanout located at 7610 Canton Drive	425				425	Drainage Conveyance System		Discharge flowed North on Fairfax and entered curb inlet located at the Southeast corner of Fairfax and Canton.  Discharge was fully contained and recaptured at downstream storm-drain cleanout located at 7610 Canton Drive	Y	32.72241	-117.03043	32.72274	-117.03064	32.72229	-117.03189			12/03/2023 21:45	Spill volume estimation based on field operator reported rate of discharge and reported spill start and end times.  Estimated discharge rate is higher than expected for small collection basin and time of day spill occurred.	Estimated spill start time provided by reporting resident.  Spill end time noted by field response team.  	Root Intrusion		Manhole		Concrete		76	Spill impact limited to pubic right-of way, MS4 curb inlet and approximately 600 feet of drain pipe 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Response team identified spill location and set up containment using combination unit.  Identified location of failure and relieved stoppage within easement manhole.  Cleanup effort consisted of wash-down and disinfection of right-of way and flushing of affected MS4 system	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Inspected sewer system within the easement using CCTV to identify extent of failure.  Failure limited to root intrusion inside of manhole.  Manhole roots removed and preventive maintenance procedures for inspecting/addressing easement manholes reviewed		12/03/2023 22:00	Inspected sewer system within the easement using CCTV to identify extent of failure.  Failure limited to root intrusion inside of manhole.  		None	12/04/2023 12:00														N/A	Opening, inspecting and clearing of any roots and debris when discovered during preventive maintenance activities are performed 	No	No	No	No	No	Spill response activities unmodified.	None	
2	2SSO10179	Active	San Jose City CS	San Jose City	892159	1.3	Certified	Alberto Gaxiola	Associate Engineer	17-JAN-24	30-JAN-24	30-JAN-24	Category 1 Spill	3398 Mt Madonna Drive, San Jose, CA 95127	01/14/2024 17:52	01/14/2024 18:20	01/13/2024 17:00	01/14/2024 19:25	24-0225		The spill appearance point was a sanitary sewer manhole in front of the property at 3398 Mt Madonna Dr. A picture of the overflowing manhole was uploaded as an attachment named  SpillGeneralInfo_7_SpillAppearancePoint . 	37.349678	-121.802127	Manhole			22823	The spill discharged from the manhole and traveled along the street and curb/gutter.  From the curb/gutter, the sewage eventually reached and entered a nearby storm drain system inlet. This storm inlet is connected to the City of San Jose's municipal storm sewer system. The sewage then traveled within the storm system to a storm drain outfall and discharged to Lower Silver Creek. Pictures of the spill boundary on land are uploaded as attachments named  SpillGeneralInfo_9_SpillBoundary_Asphalt ,  SpillGeneralInfo_9_SpillBoundary_CurbGutter1  and  SpillGeneralInfo_9_SpillBoundary_CurbGutter2 . In addition to the pictures, a map of the spill boundary on land was uploaded as an attachment named  SpillGeneralInfo_9_SpillBoundaryMap . 	Y	The spill reached a nearby storm drain inlet along Mt Madonna Dr approximately 250 ft from the spill appearance point.  This storm drain inlet is connected to the City of San Jose's municipal storm sewer system.  The sewage traveled within the storm system to a storm outfall discharge point along Lower Silver Creek. The responding Crew observed existing flow in the storm drain conveyance system from a recent rain event the day before. This existing stormwater flow mixed with the spill (sewage) and traveled within the storm drain conveyance system. Pictures of the spill within the storm drain conveyance system are uploaded as attachments named  SpillGeneralInfo_10_StormDrainInlet  and  SpillGeneralInfo_10_StormDrainManhole .	348	22465	The sewage reached Lower Silver Creek by discharging from a storm drain system outfall. The longitude and latitude location of the storm outfall along the Lower Silver Creek is approximately at 37.34317781900167, -121.81292200759795. Upon arrival, the responding Crew discovered that the storm drain outfall was not easily accessible and posed safety challenges - due to the existing creek flow conditions and steep slope of the concrete channel. A picture of the storm drain outfall was uploaded to the attachments named  SpillGeneralInfo_11_StormDrainDichargePoint1  and  SpillGeneralInfo_11_StormDrainDichargePoint2 .	22465	358	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		The spill (sewage) traveled along the street curb and gutter from the manhole at the intersection of Mt Madonna Dr and Mt St Helena Dr (spill appearance point). The manhole is identified in 1.d. and 1.e. The spill reached and traveled along the curb and gutter, then entered City's storm inlet and drainage system. The location of the storm drain inlet is identified in 1.f. and 1.g. The spill reached the nearby surface water of Lower Silver Creek through a storm outfall discharge point. The storm outfall discharge point is identified in 1.h. and 1.i.	Y	37.349678	-121.802127	37.349326	-121.802669	37.343177819002	-121.812922007598			01/14/2024 21:09	The total SSO spill volume was estimated by using the approximate flow rate during the spill response and applying that flow rate to a typical residential diurnal flow pattern. It was assumed that a typical diurnal residential flow pattern experiences a maxim flow rate from 6:00 to 12:00, 75% of the max flow from 12:00 to 18:00, 65% of the max flow from 18:00 to 24:00, and 15% of the max flow from 24:00 to 6:00. A total spill volume was estimated using this diurnal flow pattern and an approximate duration of the spill. For the spill on land, the Crew used approximate measurements to estimate the recovered volume. Lastly, for the spill recovered from the storm drain system, an approximate depth of flow was measured while tracking the spill. The depth was applied to a partially filled cylinder calculation to estimate a volume for each of the storm drain pipes. This volume in the storm system was assumed to be 50% sewage and 50% stormwater based on the concentration of ammonia (1-3 ppm).	The reporting party first noticed the spill on 1/13/2024 at 18:00. At that time, the reporting party stated that the spill had only traveled approximately 150 ft from the appearance point and had not yet reached the nearby storm drain inlet. Based on the reporting party's information, it was assumed that the SSO likely started shortly before the reporting party noticed. The start time of the SSO is assumed to have started around 17:00 on 1/13/2024.	Other (specify below)	Sewage overflowed from a sanitary sewer manhole due to a blockage in the downstream mainline pipe. The cause of the blockage was a combination of roots, rags, and an unknown metal obstruction. This metal obstruction appeared to be a large nail.	Gravity Mainline		Vitrified Clay		65	The spill required cleanup of the street curb and gutter in front of the property at 3398 Mt Madonna Dr. In addition, it was estimated that 22,465 gallons of raw sewage reached Lower Silver Creek. Based on the responding Crew's visual observations, there was no adverse impact to the environment or wildlife at the time of the spill. The City of San Jose Environment Department conducted a creek walk to assess the impact to the waterway on 1/18/2023. The result of the creek walk also showed no impact to the creek or wildlife. 	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Upon arrival, the responding City Crew immediately placed sandbags around the nearby storm drain inlet where the spill had entered. The Crew tracked the spill in the storm drain conveyance system (MS4). It was discovered that the spill discharged out from a storm drain outfall into Lower Silver Creek. The Crew then placed sandbags in a storm drain manhole to contain the spill and stop any further discharge to the Creek. Once the blockage was cleared and the spill stopped, the Crew began their cleanup efforts. At the spill source point, a Crew flushed sewage from the asphalt and curb to the nearby storm drain inlet. Water was used from a nearby hydrant and Vacuum truck to clean all of the spill on land. The hydrant hose and Vacuum truck then flushed the storm drain system with water at the affected inlet. Another Vacuum truck was positioned at the downstream sandbag containment within a storm drain manhole to recover all of the induced water and sewage from the MS4.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		The City has planned the following corrective actions for this sanitary sewer overflow:  1. Adjust the plugged pipe segment operation and maintenance cleaning frequency from 7 years to 2 years. 2. Re-video the plugged sanitary pipe segment along with the upstream and downstream segments in 12 months. 3. Add the the plugged sanitary pipe segment along with the upstream and downstream segment to the City Sewer Root Control Program.	The City has scheduled following corrective actions for this sanitary sewer overflow:  1. Adjust the plugged pipe segment operation and maintenance cleaning frequency from 7 years to 2 years - completed on 1/24/2024 2. Re-video the plugged sanitary pipe segment along with the upstream and downstream segments in 12 months - scheduled for 1/13/2025 3. Add the the plugged sanitary pipe segment along with the upstream and downstream segment to the City Sewer Root Control Program  - added to the program list on 1/24/2024	01/14/2024 21:09	While the Responding Crew cleared the blockage in the plugged sanitary mainline, the Crew documented their findings.  A pipe basket was used to collect roots, rags, and a piece of metal that was removed while clearing the blockage within the mainline.  After conducting a follow up CCTV of the sanitary mainline pipe, there were no other major O&M observations or structural defects that may have contributed to the blockage. Therefore, it was determined that the cause was a combination of roots, rags, and a foreign metal piece (nail).	N			Lower Silver Creek	River		Lower Silver Creek is a 4.7-mile-long northwest and westward-flowing stream currently originating just north of Lake Cunningham in Evergreen Valley in southeast San Jose, California. It is tributary to Coyote Creek, whose waters flow to the south end of the San Francisco Bay. Lower Silver Creek is not intended for recreational usage.	During the spill response, there was no adverse impact to the environment or wildlife observed. The following Tuesday, 1/16/2024, an inspector conducted a follow up storm drain outfall inspection. There was no adverse impact to the environment or wildlife observed during the follow up inspection.	Other (specify below)	No public access impact - Lower Silver Creek is not intended for recreational usage.	Santa Clara Valley Water District	0	N	N												
1	1SSO10023	Active	Del Norte County CSA CS	Del Norte County	892163	1.2	Certified	Jonathan Olson	County Engineer	17-JAN-24	17-JAN-24	17-JAN-24	Category 1 Spill	Union Street west of Maiden Lane	01/13/2024 12:00	01/13/2024 12:30	01/13/2024 12:00	01/17/2024 15:43	24-0275		intense rain event caused inflow and infiltration that was too great for the Elk Valley Lift Station. The spill occured at the local low point out of a manhole on Union Street.	41.75591	-124.18173	Manhole			5000	Due to the thick vegetation there is no way to photograph the spill area. The spill runs out into a swampy area that is connected to Elk Creek. 	N				Unable to photograph Due to the thick vegetation. The spill runs out into a swampy area that is connected to Elk Creek. 	5000	0	Other (specify below); Surface Water; Unpaved Surface	heavily vegetated low areas and elk creek.	Unable to know exactly where the spill went. The spill was close to Elk Creek with is connected to the Pacific Ocean.	N									01/13/2024 17:15	Visual method from Sanitary Sewer Management Plan: images showing flow rates out of a manhole.	Eye witness of event and SCADA data and system alarms	Flow Exceeded Capacity (Separate Collection System Only)		Manhole		Polyvinyl Chloride (PVC)		40	Samples were taken upstream and downstream of the spill. The upstream sample had higher levels of coliform and E. Coli. than the downstream sample.	Y	Other (specify below)	Utilized vac trucks to bypass pump the sewer lift station that was overwhelmed. Prevented an estimated 18,000 additional gallons from spilling into Elk Creek. Sprayed area around manhole that was overflowing with disinfectant after spill was stopped.	Vac trucks on-site for bypass pumping. 	Other (specify below)	This was a rare rain event that was too great for our pumping system to keep up with.	Heavy and hard rain events cannot be avoided. Working with Indian Health Services (IHS) to find and repair inflow and infiltration points.	Continue to monitor and make repairs where feasible. Summer 2025 we should have a report from IHS.	01/13/2024 17:15	Hard and Heavy rain. reviewed SCADA data.	N			Elk Creek and Pacific Ocean	Ocean; Stream/Creek		Elk Creek and its adjacent swampy area. 	NA	Other (specify below)	None- test results indicated no increase in bacteria.	County of Del Norte/ City of Crescent City	0	N	Y	Upstream and Downstream of the spill location.	Total Coliform and E. Coli.										
4	4SSO10376	Active	Claremont City CS	Claremont City	892165	1.3	Certified	Cari Dillman	Community Services Manager	18-JAN-24	25-JAN-24	25-JAN-24	Category 2 Spill	555 W. Foothill Blvd	01/12/2024 14:55	01/12/2024 15:15	01/12/2024 14:55		-		Waste water overflow from manhole located outside the Double Tree Hotel	34.10765	-117.7241	Gravity Mainline			3000	Waste water overflow from manhole at 555 W. Foothill Blvd. Overflow traveled to 695 W. Foothill Blvd. 	Y	Drainage system goes to Pomona mainline	0	0			0	Street/Curb and Gutter (2 3)		Sewer overflow from manhole at 550 W. Foothill Blvd	Y	34.10686	-117.7235							01/12/2024 17:23	Spill volume estimations were calculated by using the SSCS manhole overflow gauge. No spillage was recovered.	The SSCS manhole overflow gauge	Root Intrusion		Manhole		Vitrified Clay		59	No impact	N	Cleaned Up (specify below)		Cleaned and sanitized after the spill	Added Sewer to Preventive Maintenance Program		The manhole will be placed on quarterly maintenance schedule. 	Every quarter the line will be inspected and cleaned.	01/12/2024 17:30	Manhole overflow due to root intrusion. 	N												N													
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	892167	1.1	Certified	David Leamer	Assistant Superintendent		25-JAN-24	25-JAN-24	Monthly Category 3 Spill	336317	12/12/2023 11:38	12/12/2023 11:50	12/12/2023 09:00				See Attachment, Spill Map and Photos	38.65188	-121.34059	Manhole	N/A		132	See Attachment, Spill Map and Photos	Y	See Attachment, Spill Map and Photos	125				129	Drainage Conveyance System; Street/Curb and Gutter (2 3)		See Attachment, Spill Map and Photos	Y	38.65191	-121.34056	38.65039	-121.34084					12/12/2023 11:50	See Attachment, Spill Volume Estimation.	See Attachment, Spill Volume Estimation.	Root Intrusion		Gravity Mainline		Vitrified Clay		64	No observed impact of spill	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		SacSewer crews broke the stoppage in the SacSewer manhole. SacSewer crews used a hydro-vacuum truck to rinse and vacuum above-ground surfaces in contact with sewage. SacSewer crews used a hydro-vacuum truck to rinse and vacuum the drainage conveyance system from the storm drain inlet located at 4819 Alexon Way to the manhole located in landscape of 5248 Adelaide Way. SacSewer returned all recovered sewage and rinse water to the sewer system.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected mainline with CCTV on 12/13/23. Based on findings, SacSewer increased preventative cleaning frequency to 6 months from 24 months.		12/23/2023 15:48	SacSewer crews broke the stoppage in the SacSewer manhole. SacSewer crews used a hydro-vacuum truck to rinse and vacuum above-ground surfaces in contact with sewage. SacSewer crews used a hydro-vacuum truck to rinse and vacuum the drainage conveyance system from the storm drain inlet located at 4819 Alexon Way to the manhole located in landscape of 5248 Adelaide Way. SacSewer returned all recovered sewage and rinse water to the sewer system.		None	12/23/2023 15:48														N/A	SacSewer increased preventive cleaning frequency from 24 months to 6 months.	SacSewer increased preventive cleaning frequency from 24 months to 6 months.	N/A	SacSewer inspected mainline with CCTV on 12/13/23.	N/A	SacSewer increased preventive maintenance frequency on 12/15/23	N/A	None	
4	4SSO10429	Active	Santa Clarita City CS	City of Santa Clarita 	892168	1.1	Certified	Robert Swartz	Sr. CE		27-FEB-24	27-FEB-24	Monthly Category 3 Spill	1295 (26123 Bouquet Canyon Road, Santa Clarita)	01/04/2024 09:21	01/04/2024 09:32	01/04/2024 09:00				CSMD Map Sheet No. 1295 MMS No. 8615004	34.41822	-118.54361	Other (specify below)	Sewer drain in the laundry room for an apartment complex.		50	50 gallons of spill came out of the drain in the laundry room and when the stoppage was unplugged all 50 gallons went back into the drain.	N						50	Building or Structure		50 gallons of spill came out of the drain in the laundry room and when the stoppage was unplugged all 50 gallons went back into the drain.	N									01/04/2024 09:44	Visual or eyeball method.	The start time is obtained from the reporting party the end time is when the crew clears the obstruction, and the overflow stops.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		43	N/A	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow		Upon arrival, mainline was up but not overflowing. Hydro jet equipment was utilized to break down the mainline grease blockage. Informed Carl Warren and Company for clean-up service. Notified all required agencies. 	Other (specify below)	Sewer is already added to 30-day Preventive Maintenance Program. Will inspect and monitor condition. Will inspect sewer using CCTV to determine if further actions are needed.	Sewer is already added to 30-day Preventive Maintenance Program. Will inspect and monitor condition. Will inspect sewer using CCTV to determine if further actions are needed.		01/04/2024 12:36	Will inspect sewer using CCTV to determine if further actions are needed.		Will inspect sewer using CCTV to determine if further actions are needed.	03/04/2024 12:00														Sewer is already added to 30-day Preventive Maintenance Program. Will inspect and monitor condition. Will inspect sewer using CCTV to determine if further actions are needed.	Sewer is already added to 30-day Preventive Maintenance Program. Will inspect and monitor condition. Will inspect sewer using CCTV to determine if further actions are needed.	Sewer is already added to 30-day Preventive Maintenance Program. Will inspect and monitor condition. Will inspect sewer using CCTV to determine if further actions are needed.	N/A	N/A	N/A	N/A	Sewer is already added to Preventive Maintenance Program. Will inspect and monitor condition. Will inspect sewer using CCTV to determine if further actions are needed.	Will inspect sewer using CCTV to determine if further actions are needed.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	892173	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	18-JAN-24	25-JAN-24	25-JAN-24	Category 1 Spill	1232 33rd. Avenue, Oakland Ca	01/17/2024 15:13	01/17/2024 15:40	01/17/2024 15:00		-		Lamp-Hole was overflowing in the street.	37.77636	-122.22474	Other (specify below)	Lamp-Hole was overflowing in street.		300	Lamp-Hole was overflowing in street., the sewage was flowing to gutter area and to separate storm drain.	Y	15  storm line called Sausal creek that flows to Tidal Canal.	0	300	15  storm line called Sausal creek that flows to Tidal Canal.	300	0	Other (specify below); Street/Curb and Gutter (2 3)	300 gallons overflowed from lamp-hole onto street, gutter, and storm drain.	300 gallons overflowed from lamp-hole onto street, gutter, and storm drain.	Y	37.77636	-122.22474							01/17/2024 19:30	Volume was estimated on 150 minutes x 2 GPM= 300 Gallons.	Start time was based on eyewitness account. End time was based on responding crew clearing the blockage in the mainline.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		99	300 hundred gallons overflowed from a lamp hole into a storm inlet that flows to a storm line called Sausal Creek to Tidal Waters.	N	Cleaned Up (specify below); Restored Flow	Staff washed, cleaned up affected areas in the street and gutter.	Staff washed, cleaned up affected areas in the street and gutter.	Added Sewer to Preventive Maintenance Program		Line was placed on hydro six-month frequency program.	Line was placed on hydro six-month frequency program.	01/17/2024 19:30	CCTV found grease to be the potential cause of the overflow.	N			Sausal creek to Tidal Waters	Estuary		15  Storm line that flows into Tidal Waters.	None.	Other (specify below)	None.	N/A	0	Y	N												
8	8SSO10596	Active	Rossmoor/Los Alamitos San. Dist CS	Rossmoor/Los Alamitos Area Sanitatary Dist.	892176	1.2	Certified	Sarah Borbon	General Manager		18-JAN-24	18-JAN-24	Monthly Category 3 Spill	10650 Los Alamitos Blvd. Los Alamitos, CA 90720	01/17/2024 11:19	01/17/2024 12:08	01/17/2024 11:00				I got a call at 11:19am on Jan 17, 2024 that one of our manholes was slowly  leaking some sewage. I drove over to the location given at 10650 Los Alamitos Blvd. and arrived at 11:33am and found the spill. I immediately called Empire to come out and luckily they had a unit about 20 minutes away. I started placing sandbags around the drains so no sewage went down the drain and I also called public works to come out to assist. Empire arrived at 12:08pm and immediately began to stop the spill. It stopped at 12:19pm. Public works responded after spill had stopped and left because they were no longer needed. Empire cleaned up the gutters after the spill had stopped. 	33.80792	-118.07106	Manhole			790	Manhole was leaking sewage about 10 gpm and leaked for about one hour and 19 minutes. It was caught in the gutter and street  until Empire removed.	N						700	Paved Surface; Street/Curb and Gutter (2 3)		The spill was leaking out of the manhole and going down the street where I was able to sandbag it from going down another drain. It pooled into the street and gutter till Empire was able to remove.		33.80792	-118.07106							01/17/2024 12:19	I estimated the spill volume per the SSCSC Manhole Overflow Gauge and estimated it to be about 10GPM	SSCSC Manhole Overflow Gauge. It seemed slightly more than 5gpm but not nearly enough to be considered 25gpm.	Fats, Oil and Grease (FOG)		Manhole		Vitrified Clay		60	No impact to any residn	N	Cleaned Up (specify below)		Empire vacuumed up all the remnants of the spill on the street and cleaned the gutters till you could no longer see or smell sewage. 	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source		Empire will use CCTV to investigate further but the workers did say it was just build up of grease.		01/17/2024 14:00	N/A		Empire will investigate further.	01/31/2024 12:00														N/A	Empire will keep it as a location they need to keep an eye on to prevet future spills.	Empire will add it to their annual clean out to maintain.	N/A	N/A	N/A	N/A	N/A	Empire will investigate further.	
4	4SSO10381	Active	Culver City CS	Culver City	892181	1.1	Certified	Yanni Demitri	Director of Public Works		19-JAN-24	19-JAN-24	Monthly Category 3 Spill	Ranch Road & Overland Ave	01/10/2024 07:39	01/10/2024 07:45	01/10/2024 07:37				Wastewater spilled from City manhole located on Ranch Road	33.997477	-118.389417	Manhole		n/a	493	Sewage overflowed onto the street, traveled down the curb and gutter and entered the catch basin at Overland Ave and Sawtelle Blvd	Y	Catch Basin at Overland Ave and Sawtelle Blvd	70				493	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		The spill remained and contained at the downstream storm drain manhole (#153+70)	Y	33.992083	-118.392214							01/10/2024 08:05	CWEA SSCSC Manhole Gauge, observation from first reporter and city's crews	Spill start is obtained from the reporting party.  Spill end time when the crew clears the obstruction, and the overflow stops.	Root Intrusion		Gravity Mainline		Vitrified Clay		71	sewage entered the street, curb and gutter, and portion of the storm drain pipe	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Upon arrival, one crew relieved the stoppage, and other crew sandbagged the catch basin entry and checked the storm drainpipe and located the affected area.  Cleaned up the area and drainage conveyance system	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance		Will adjust the cleaning and inspection schedule to help prevent future occurrences		01/10/2024 09:30	N/A		N/A	01/10/2024 09:30														N/A	Increase the frequency of cleaning of this area	Increase more frequency and clean as needed	N/A	N/A	N/A	N/A	N/A	N/A	
1	1SSO10100	Active	Fieldbrook Glendale CS	Fieldbrook CSD	892188	1.3	Ready to Certify						Monthly Category 3 Spill	Manhole at 529 FB Road	01/13/2024 14:45	01/13/2024 14:45	01/13/2024 14:45				Stormwater from Manhole Significant rain event Discharge from manhole contained in adjacent ditch	40.908295	-124.025744	Manhole		None	315	None	N						0	Unpaved Surface		Spill contained in ditch 										01/13/2024 14:45	Spill volume based on pump station calculations.	Sewer technician was on site because of the storm. Start and end times were noted on his cell phone.	Flow Exceeded Capacity (Separate Collection System Only)	Storm water overwhelmed lower lift stations.	Manhole		Polyvinyl Chloride (PVC)		34	None 	Y	Mitigated Effects of Spill (specify below)	Effluent was clear - stormwater	Monitored and contained	Added Sewer to Preventive Maintenance Program		Identify and isolate areas of inflow and infiltration. Isolate and seal. 		01/13/2024 14:45	This was an unique event related to nearly 7  of rainfall in a 24 hr period.		None	01/13/2024 14:45														None	We are a collection system. The effluent is pumped to the City of Arcata for treatment. Our collection system flow under pressure to their collection system. Their system was not able to take our flow. 	Our system is fully maintained.	None.	N/A	N/A	N/A	N/A	None	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	892196	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	19-JAN-24	24-JAN-24	24-JAN-24	Category 1 Spill	1 West View Place, Oakland Ca	01/16/2024 14:00	01/16/2024 17:15	01/16/2024 12:00	01/16/2024 22:55	24-0266		Lamp-Hole that was covered under heavy brush was overflowing on a hillside on Easement in the rear of the property.	37.85894	-122.23138	Other (specify below)	Lamp-Hole that was covered under heavy brush was overflowing on a hillside on Easement in the rear of the property.		4840	Lamp-Hole that was covered under heavy brush was overflowing on a hillside on Easement in the rear of the property, the sewage flowed into Vicente creek.	Y	Vicente creek is a stream. At the time of the spill, it was flowing due to recent rainstorms. 	0	4840	Lamp-Hole that was covered under heavy brush was overflowing on a hillside on Easement in the rear of the property, the sewage flowed into Vicente creek.	4840	0	Surface Water		Lamp-Hole that was covered under heavy brush was overflowing on a hillside on Easement in the rear of the property.	Y	37.85894	-122.23138							01/16/2024 10:04	Spill volume estimate was based on time department was notified by citizen.	484 minutes x 10 GPM = 4,840 Gallons.	Root Intrusion	There is a section of the corrugated pipe that runs over the creek that's damaged. Roots caused the blockage.	Gravity Mainline	There is a section of the corrugated pipe that runs over the creek that's damaged. Roots caused the blockage.	Other (specify below)	corrugated.	50	4,4840 gallons of sewage overflowed from a lamp hole on the hillside covered by brush. Sewage spilled into the creek. 	Y	Mitigated Effects of Spill (specify below); Restored Flow		Sewage spilled down the hillside into the creek. Spill was on a steep incline. Spilled sewage went into creek.	Plan Rehabilitation or Replacement of Sewer		Line was placed on the capital improvement project list. Work Order# 1494227	Line was placed on the capital improvement project list. Work Order# 1494227	01/17/2024 12:30	CCTV inspection found signs of root intrusion, and a damaged corrugated pipe that ran over the creek.	N			Vicente Creek	Stream/Creek		Creek.	None.	Other (specify below)	None.	N/A	0	N	N												
1	1SSO10058	Active	Rio Dell City CS	Rio Dell City	892223	1.1	Amended	Sunshine Kelly	Wastewater Superintendent		02-FEB-24	02-FEB-24	Category 1 Spill	End of Painter Street Manhole	01/20/2024 06:30	01/20/2024 08:00	01/20/2024 06:30	01/20/2024 08:13	24-0326	25-JAN-24	The spill was located at the Painter Street manhole at 556 Painter St. Photos attached show spill location. 	40.503117	-124.093756	Manhole			63000	The spill was located at the Painter Street manhole and flowed down the gravel ditch away from the residential area toward the Eel River, river bar. Photos show the sandbags, and ditch in place to direct the flow away from the residential area. 	N				Photographs show the spill stream running toward the river. Due to the extreme rain, my phone got wet and would no longer take pictures once I reached where the spill stream that combined with rain run off to reach the Eel River.	63000	0	Surface Water		The Spill flowed to the river at Latitude/ Longitude: 40.503055, -124.091890.	Y	40.503055	-124.09189							01/20/2024 17:30	The volume estimation was based on flow monitoring at the site as well as supervisory control from SCADA based on the trend of the Painter Street lift station wet well level and pump control and the influent flow data into the plant.	The methodology of the spill start time was based on supervisory control based on SCADA of the data collected on the Painter Street Pump station trend, and the rain gauge at the Wastewater treatment plant. We were prepared for the event and had sandbags, signs placed at the site to respond as soon as it started.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Other (specify below)	The failure is that the sanitary sewer main at this location was constructed with a 90 degree turn at this manhole and the earthquake in December of 2022 destroyed private laterals allowing more I&I to enter this portion of the sanitary sewer system. An upsizing project for this section of the sanitary sewer system is in the works since 2019 and will hopefully see some forward momentum with state funding this spring and summer, before the next wet season.	55	Spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage and the property owners were made aware of the issue at this site location.	Y	Cleaned Up (specify below)	During and after spill the area was monitored to keep clean if there were any sewage debris. 	Spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage was in place, property owners were notified and personnel frequently monitored at this site location.	Plan Rehabilitation or Replacement of Sewer		This site has a planned upsizing project in the planning phases for the past 6 years. Currently waiting on State funding to push the design process forward.	Meeting with the State Water Control Board and Engineering company GHD on January 24th, 2024, provided some comfort that the State would approve the funding of this project, and the City of Rio Dell can start the design process. 	01/20/2024 17:30	This SSO occurred due to the high levels of I&I. Several days of rain and saturation of the ground caused the pump station to become overwhelmed when large amount of rain occurred at once and caused the SSO at this location, the Painter Street manhole.	N			Eel River	River		The Eel River is a large river that runs north on the east side of the City of Rio Dell.	No known observed impact on aquatic life.	Temporary Restricted Use		City of Rio Dell Wastewater Superintendent and the City of Rio Dell P.D.	2	N	Y	A sample was taken upstream in the river of the spill location; RSW-001U: Latitude/Longitude (40.496013, -124.093796). A sample was taken where the spill stream enters the Eel River; RSW-001: Latitude/Longitude (40.503055, -124.091890). A sample was taken downstream in the river of the spill location; RSW-001D: Latitude/Longitude (40.508887, -124.111481) 	Per the City of Rio Dell SSO Water Quality Monitoring Plan Samples were analyzed for E.coli and Ammonia.										
5S	5SSO11055	Active	Southeast Regional Waste Disp Fac CS	Lake Cnty	892231	1.4	Certified	George Hornung	Deputy Administrator	22-JAN-24	05-FEB-24	05-FEB-24	Category 1 Spill	Burns Valley Rd and Rumsey Rd	01/22/2024 09:50	01/22/2024 09:50	01/22/2024 09:50	01/22/2024 11:35	24-0364		On Rumsey Rd, approximately 100 ft north of the intersection of Burns Valley Rd and Rumsey Rd.  The force main ruptured causing an SSO at this location.  Raw sewage was released and entered the flowing water way (Miller Creek).	38.96562	-122.63119	Force Main; Other (specify below)	Force main ruptured causing an SSO to appear in the roadway.		40787	The spill area was within the paved surface area at the intersection of Burns Valley Rd and Rumsey Rd.  The spill was entering the storm drain system and which caused it to enter Miller Creek.	Y	Spill entered storm drainage inlets at the intersection and was transported to Miller Creek and then to Clear Lake.	16500	0	Drainage inlets at the intersection outlet to Burns Valley Creek	24287	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Surface Water		Spill entered the storm drain system and entered Miller Creek which leads to Clear Lake.	N									01/22/2024 11:30	The pump run times and data were used to determine a flow rate out of the lift station thru the force main while the pumps where on.  We assumed 1/2 of the flow from the pumps came out of the crack in the force main, which is a high estimate.  Once the lift station was shut down and valved off we assumed 36% of the sewage in the pipe drained out.  Pumper trucks were able to capture 16,500 gals of sewage and prevent it from entering the drainage course.	Field staff were at Lift Station 1, approximately 400 feet south of the location where the force main failed when it happened.  Field staff were actively working the spill when the flow ceased.	Pipe Structural Problem/Failure - Controls		Force Main		Other (specify below)	asbestos cement pipe	50	The spill uplifted Rumsey Rd at the failure location, and spilled into drainage inlets and into Miller Creek where it was transported to Clear Lake.  Rumsey Rd was shut down for two days while the repairs were made with a detour in place.	N	Cleaned Up (specify below); Returned Portion of Spill to Sanitary Sewer System		Field staff shut down the lift station and bypassed the failed force main.  Staff valved off the affected force main and called pumper trucks to recover as much of the spill as possible.	Repaired Facilities or Replaced Defect		The force main failed at a full circle coupler repair.  The affected section of force main was removed and replaced with a section of ductile iron pipe.	N/A	01/23/2024 15:30	The cause was a failure of a full circle coupler repair that cracked.	N			Miller Creek to Clear Lake	Lake; Stream/Creek		Miller Creek is a seasonal stream that leads to Clear Lake.	None observed.  Environmental health was contacted to take samples within the stream and at the shoreline of the lake where the stream enters Clear Lake.	Restricted Public Access		Environmental Health and Public Health	14	N	Y	See attached water quality sample locations 892231 document	Total Coliform and E. coli										
2	2SSO10159	Active	Napa Sd CS	Napa Sanitation District	892236	1.3	Certified	Steve Caldwell	Collections system supervisor		26-JAN-24	26-JAN-24	Monthly Category 3 Spill	1582 East Ave, Napa, CA 94559 (Mainline R60-038 - R60-039)	01/18/2024 08:05	01/18/2024 08:01	01/18/2024 08:05				Complainant called in sewer blockage call at 7:39 A.M. on 1-18-2024. No spill had occurred until Napa San maintenance worker arrived on the scene and opened the cleanout servicing 1582 East Ave at 8:05 A.M.  See Attached Photos.	38.31034	-122.27387	Lateral Clean Out (Public)	Spill Appearance Point was located at the cleanout servicing 1582 East Ave.		95	Spill boundary measurements listed below. Driveway and Sidewalk Spill Area: 20' x 12' Street, Curb and Gutter Spill Area: 50' x 6' x 0.04'  See Attached Photos.	N						93	Paved Surface; Street/Curb and Gutter (2 3)		Spill reached driveway for 1582 East Ave. Spill also reached sidewalk, street and curb and gutter in front of the residence.  See Attached Photos. 	N									01/18/2024 08:08	Total spill area in a paved surface, volume measurement of spill area by depth and visual observations.	No spill had occurred until Napa San maintenance worker arrived on the scene and opened the cleanout for 1582 East Ave. He then checked the time to gather the spill start time and then used eel rods to stop the spill and restore flow then checked the time again to gather the spill stop time.	Debris-General		Gravity Mainline		Other (specify below)	Asbestos Cement	60	Spill affected areas were cleaned and vacuumed by combination truck.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow		Blockage from debris-general at mainline was cleared with eel and flow was restored. Combination and water truck were called out. Water truck flushed the mainline and the combination truck cleaned, rinsed and vacuumed the spill affected areas. Once all of these efforts were completed the resident was notified.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Lateral was inspected on 1-18-2024 during the spill response. Mainline was televised on 1-19-2024 to determine if any other causes could have contributed to the cause of the spill. Mainlines preventive maintenance schedule was adjusted and lateral asset preventive maintenance schedule was added.		01/19/2024 14:30	Lateral televised and inspected during the spill response on 1-18-2024 with debris-general stacking at the mainline being the cause. The mainline asset that 1582 East Avenues lateral asset flows to was inspected on 1-19-2024 from the hours of 13:00 to 14:30. On this day of the mainline inspection heavy debris-general was noted again at 1528 East Avenues lateral connection. Combination truck was called out again to clean the mainline and relieve this issue. Both lateral and mainline assets have had adjustments or additions to preventive maintenance schedules to prevent this issue from happening again.		Investigation has been completed.	01/19/2024 14:30														N/A	Mainlines preventive maintenance schedule was adjusted. As of now 1582 East Avenues lateral will also be placed on pm to inspect once a week to make sure debris-general stacking at mainline will not cause any future backups. Once a few of these lateral checks come back clear this lateral pm schedule will be adjusted again.	Mainline pm schedule adjusted from a 12-month pm cycle to a 6-month pm cycle. Lateral pm cycle will be once a week. If lateral inspection results come back poor (showing debris-general stacking in main again) this mainlines schedule could be adjusted again to be a more frequent schedule.	No planned schedule for rehabilitation at this time.	Lateral and mainline assets were televised and inspected.	N/A	Our CMMS has been updated to reflect the new adjusted preventative maintenance work orders needed for these assets. 	No spill response modifications needed at this time.	Investigation has been completed.	
9	9SSO10674	Active	City of Oceanside Collection System, La Salina WWTP	Oceanside City	892242	1.2	Certified	Jeremy Kemp	Utility Supervisor	22-JAN-24	22-JAN-24	22-JAN-24	Category 2 Spill	1306 Buena St.   (Syphon)	01/22/2024 08:45	01/22/2024 08:45	01/22/2024 08:45	01/22/2024 14:43	24-0378		Happened at Syphon - a sewer vault with a built-in overflow to protect the surrounding neighborhood	33.20126	-117.37324	Other Sewer System Structure	Sewer vault w/overflow		5125	Vault has an emergency overflow to protect damage to the nearby homes. Overflow daylights in adjacent large canyon.	N	Overflow pipe travels about 500ft and daylights in canyon.					0	Unpaved Surface	Large canyon	Large canyon 500ft north of sewer vault	N									01/22/2024 14:10	205mins x 25gpm = 5,125	We were on location when the spill entered the overflow pipe (Start time). We also have our SmartCover trends that verify beginning and end of the spill.	Flow Exceeded Capacity (Separate Collection System Only)		Siphon		Ductile Iron		54	In canyon where spill will absorb into the soil - no outlet at current level	Y	Restored Flow		Really just monitor situation and make sure no damage caused to nearby homes. Had to wait for rain event to subside.	Plan Rehabilitation or Replacement of Sewer		We diverted flow upstream to try and help the hydraulic overload. We also have a project on the books to help address the capacity issues.	Project is on the books for rehab	01/22/2024 14:10	System overload due to heavy rain event	N												N													
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	892243	1.1	Certified	David Leamer	Assistant Superintendent		25-JAN-24	25-JAN-24	Monthly Category 3 Spill	336339	12/12/2023 19:53	12/12/2023 20:23	12/12/2023 19:40				See Attachment, Spill Map and Photos	38.52515	-121.44059	Force Main	N/A		211	See Attachment, Spill Map and Photos	Y	See Attachment, Spill Map and Photos	26				210	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		See Attachment, Spill Map and Photos	Y	38.52627	-121.44041	38.52626	-121.43876					12/12/2023 20:23	See Attachment, Spill Volume Estimation.	See Attachment, Spill Volume Estimation.	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure; Debris-General		Air Relief Valve (ARV)/ Blow-Off Valve (BOV)		Other (specify below)	This is an Air Relief Valve (ARV)/ Blow-Off Valve (BOV)	17	No observed impact of spill	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Cleaned and rebuilt CARV	SacSewer found the ARV's to be slowly leaking out of the Vent piping.  We disassembled both ARVs, including removing the main body off of the 90*s.  The 90 was clear of trash.  We removed debris including lighters mini booze bottles and other plastics.   The trash we found built up in the ARVs was the reason they were not function properly causing the leak.  The ARVs are cleaned of foreign objects, reinstalled, and both are operational.  The flow has been returned to 1 ARV.  ARV clean and rebuild complete.  SacSewer crews used a hydro-vacuum truck to rinse and vacuum above-ground surfaces in contact with sewage. SacSewer crews used a hydro-vacuum truck to rinse and vacuum the drainage conveyance system from the storm drain inlet located at 5316 56th Street to the manhole located at 5316 58th Street. SacSewer returned all recovered sewage and rinse water to the sewer system.	Other (specify below); Repaired Facilities or Replaced Defect	Cleaned and rebuilt CARV	On 12/13/23 SacSewer cleaned and rebuilt CARV's. The ARVs are cleaned of foreign objects, reinstalled, and both are operational.  The flow has been returned to 1 ARV.  ARV clean and rebuild complete.		12/13/2023 01:10	SacSewer found the ARV's to be slowly leaking out of the Vent piping.  We disassembled both ARVs, including removing the main body off of the 90*s.  The 90 was clear of trash.  We removed debris including lighters mini booze bottles and other plastics.   The trash we found built up in the ARVs was the reason they were not function properly causing the leak.  The ARVs are cleaned of foreign objects, reinstalled, and both are operational.  The flow has been returned to 1 ARV.  ARV clean and rebuild complete.		None	12/13/2023 01:10														N/A	N/A	See 20.b.	None	On 12/13/23 SacSewer cleaned and rebuilt CARV's. The ARVs are cleaned of foreign objects, reinstalled, and both are operational.  The flow has been returned to 1 ARV.  ARV clean and rebuild complete.	N/A	N/A	None	None	
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	892246	1.3	Certified	Daniel Whitlock	Manager	25-JAN-24	19-FEB-24	19-FEB-24	Category 2 Spill	Indiana St and Marin St	01/22/2024 02:36	01/22/2024 03:00	01/22/2024 01:10		-		Industrial area	37.74881	-122.39034	Manhole	Asset N-72061		117200	Spill from manhole at intersection of Marin St and Indiana St contained at intersection.	N						117200	Paved Surface; Street/Curb and Gutter (2 3)		Due to storm event on 1/22/2024, rainfall exceeded the capacity of the pipes.	Y	37.7489786	-122.3903584	37.748525	-122.3903286	37.7488514	-122.3898384			01/22/2024 05:05	SFPUC H&H Model estimated the volume of the spill.	SFPUC H&H Model estimated the volume of the spill.	Other (specify below)	Rainfall exceeded capacity due to storm event.	Other (specify below)	No failure. Rainfall exceeded capacity due to storm event.	Concrete		30	Manhole N-72061 overflowed due to rainfall exceeding capacity. Sidewalk was closed when crews arrived to clean up. 	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below)	Returned all spill to combined sewer system.	Barricades with safety notice were put up. Used vactor truck to pressure wash sidewalk with disinfectant product and cleaned catch basins. SFDPH notified at 4:50 a.m.	Other (specify below)	No corrective action taken. Spill was caused from rainfall exceeding capacity due to storm.	No corrective action taken. Spill was caused from rainfall exceeding capacity due to storm.	No corrective action taken. Spill was caused from rainfall exceeding capacity due to storm.	01/22/2024 05:05	Rainfall exceeded capacity due to storm event.	N												N													
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	892250	1.2	Certified	Kent Vian	Asst. Deputy Director		14-FEB-24	14-FEB-24	Monthly Category 3 Spill	NOT-40201055191  RHODA DR AND MAR AVE.	01/21/2024 20:20	01/21/2024 20:46	01/21/2024 20:19				SPILL ORIGINATED FROM MANHOLE  831# EQ#10058186 AT RHODA DR AND MAR AVE	32.8408	-117.26722	Manhole	N/A	N/A	570	SPILL BOUNDARIES WERE STREET, GUTTERS, SOIL, AND STORM DRAIN.	Y	N/A	500				500	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface	N/A	THE SPILL ENTERED THE STREET, GUTTERS AND UPAVED SURFACE. ALL SPILL QUANTITIES WERE RECOVERED AND RETURNED TO THE CONVEYANCE SYSTEM.	Y	32.8408	-117.26722							01/21/2024 22:30	VISUAL CALCULATED METHOD.	THE SPILL START TIME ASSUMPTION WAS WHEN DISPATCH RECEIVED THE CALL FROM THE CONSUMER REPORTING THE SPILL.	Root Intrusion	N/A	Manhole	n/a	Vitrified Clay	N/A	13	IMPACT AREA ARE STREET,GUTTERS,SOIL AND STORM DRAIN.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	SPILL RESPONSE ACTIVITIES INCLUDED INVESTIGATE,CONTAINED,RELIVED,TRACK DOWN THE FINAL DESTINATION,RETURN ALL SEWER BACK INTO THE SYSTEM AND WASHED DOWN AREA.	Adjusted Schedule/Method of Preventive Maintenance	N/A	ADJUST SCHEDULE-METHOD TO PREVENT SPILLS.		01/21/2024 22:30	N/A		NONE	01/23/2024 07:24														N/A	N/A	NEED TO MODIFY CLEANING FREQUENCY.	N/A	N/A	N/A	N/A	NONE	NONE	
2	2SSO10183	Active	San Mateo CIty CS	San Mateo City	892253	1.3	Certified	Eric Morkve	Leadworker	23-JAN-24	31-JAN-24	31-JAN-24	Category 1 Spill	Bromfield and Chester way	01/22/2024 12:33	01/22/2024 12:55	01/22/2024 12:33	01/22/2024 16:10	24-0383		plugged main overflowed next to inlet with direct flow to creek 	37.5682	-122.35122	Manhole			1850	Manhole is very short distance to storm drain inlet flowing directly to creek	Y	direct drain to creek 	0	0	Storm inlet with direct flow to creek	1850	0	Surface Water		Gravity mainline plugged, releasing from manhole directly to storm inlet above creek	Y	37.56824	-122.35072							01/22/2024 13:45	San diego method, overflowing manhole visual	Call report time to crew unplugging mainline	Debris-wipes/Non-disposables; Root Intrusion		Gravity Mainline		Vitrified Clay		90	Flowed directly to cherry canyon creeki	N	Cleaned Up (specify below); Restored Flow		video/photo, jet unplug, disinfect washdown vacuum	Inspected Sewer Using CCTV to Determine Cause		Root foamed in the last week, cleaning scheduled for 60-90 days after, CCTV again for any other defects	unknown	01/22/2024 13:45	None at this time due to root foaming done the prior week, cleaning scheduled for 60-90 days after, CCTV at this time to determine any additional issues	N			cherry canyon creek	Stream/Creek		rural creek	none	Other (specify below)	No public access to this waterway	None	0	N	N												
9	9SSO10676	Active	Meadowlark CS	Vallecitos Water District	892254	1.3	Certified	Ed Pedrazzi	O&M Manager	24-JAN-24	29-JAN-24	29-JAN-24	Category 1 Spill	Laurels	01/22/2024 11:35	01/22/2024 11:35	01/22/2024 11:35	01/22/2024 13:02	24-0372		Spill occurred at the top of our outfall siphon behind a residential neighborhood. Manhole is located on an easement and sits at the top of a steep canyon which is inaccessible due to terrain. 	33.13	-117.22	Manhole; Other (specify below)	Top of a siphon.		1260	Spill discharged to dirt area and flowed into the canyon below. 	N				See attached photos. 	1260	0	Other (specify below)	Bottom of unnamed canyon. 	See above.	N									01/22/2024 11:53	We were onsite as the spill started. We observed the spill in progress and took pictures and video to compare with images previously created at our spill simulation training site. We also recreate the flows from our spill simulation training site and compare them to what we recorded. Attached is a copy of our training program. 	We were onsite when it started and stopped.	Flow Exceeded Capacity (Separate Collection System Only); Natural Disaster (specify below); Rainfall Exceeded Design, I and I (Separate Collection System Only)	4th largest single-day rainfall total in San Diego County history.	Siphon		Polyvinyl Chloride (PVC)		18	Spill had no impact on the public. As stated above, it ran into a canyon where there is no access. 	Y	Cleaned Up (specify below)	Cleaned up around manhole but cannot access the bottom of the canyon. 	No way to contain the spill as it is at the top of a steep canyon and we cannot get any combination trucks to the location. 	Plan Rehabilitation or Replacement of Sewer		See 10.	Our Engineering department is working with a consultant on a design for a parallel siphon to increase capacity.	01/22/2024 15:11	Spill was caused by heavy rain from an atmospheric river event which caused inflow beyond the capacity of our system. 	N			Unnamed creek 	Other (specify below)	Unnamed creek. Batiquitos Lagoon is 6.5 miles away, but talking with the Department of Public Health, they did not feel like it would have been impacted due to the low volume spilled. 	See above.	N/A	Other (specify below)	No public access.	No closures	0	N	N												
9	9SSO10678	Active	Moulton Niguel Water District CS	Moulton Niguel Water District	892258	1.1	Certified	Sara Boyer	Regulatory Compliance Coordinator		23-JAN-24	23-JAN-24	Monthly Category 3 Spill	Laguna Niguel Regional Park	12/31/2023 16:17	12/31/2023 17:02	12/31/2023 16:17				Spill appearance at air vac. 	33.54961	-117.70795	Other (specify below)	Air Vac		90	Spill was primarily contained within air vac structure. Some was land absorbed in the grassy area surrounding the structure. Absorbent material was placed around the air vac. 	N						0	Unpaved Surface		Spill was contained to the structure and grassy area immediately surrounding the structure. 	N									12/31/2023 17:02	Visual observation of flow coming from a small hole in the air vac. 	Call received from Park Ranger is considered to be start time. End time was the time of isolation by District staff. 	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure		Air Relief Valve (ARV)/ Blow-Off Valve (BOV)		Ductile Iron		11	None- all spill was land absorbed. No waterways were impacted. 	N	Contained All or Portion of Spill; Mitigated Effects of Spill (specify below)		Staff isolated air vac to stop spill. Absorbent material was placed around the air vac containment structure. 	Repaired Facilities or Replaced Defect		Replacing all air vacs in the Laguna Niguel Regional Park, including the point of failure. 		12/31/2023 17:02	Staff identified a small (3/8 ) hole in the body of the air vac. All air vacs will be replaced to avoid any future issues. 		N/A	01/02/2024 11:30														N/A	N/A- Air Vacs are on a six month preventive maintenance schedule. 	N/A- Air Vacs are on a six month preventive maintenance schedule. 	Replacing all air vacs in the Laguna Niguel Regional Park, including the point of failure. 	Replacing all air vacs in the Laguna Niguel Regional Park, including the point of failure. 	Replacing all air vacs in the Laguna Niguel Regional Park, including the point of failure. 	N/A	N/A	N/A	
5S	5SSO10722	Active	City Of Auburn CS	Auburn City	892261	1.3	Certified	Mengil A Deane	Public Works Director		31-DEC-24	31-DEC-24	Monthly Category 3 Spill	Agard st Auburn , CA 95603 	01/19/2024 10:26	01/19/2024 10:45	01/19/2024 10:25				Spill occurred only at cleanout in backyard of 182 Agard st	38.89401	-121.0698	Lateral Clean Out (Private)			100	Spill occurred at cleanout in backyard and was contained to front and backyard. 	N						50	Other (specify below)	Landscaped backyard 	Spill was within a 30 foot radius from the backyard to the front yard. 	Y	38.89403	-121.06976							01/19/2024 10:50	There is no flow monitoring in a gravity mainline. Spill was trickling out of a cleanout for approximately 25 minutes before blockage was cleared. 	Home owner called spill in at 10:26 and the collections crew had it unblocked at 10:50. 	Debris-General; Debris-Rags; Debris-wipes/Non-disposables; Root Intrusion		Gravity Mainline		Vitrified Clay		80	Spilled in home owners landscaped backyard. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow		Blockage in pipe was immediately cleared upon arrival, stopping the spill from the cleanout. The city of Auburn was notified and an environmental service cleanup crew was called to properly clean up the spill/debris on the ground.  	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		The mainline is in an area with very old pipe. Line has been CCTV'd multiple times in the last year and was recommended for repair. The line is on an annual cleaning schedule but may need to be added to the hotspot list to avoid another spill until the line is dug up and replaced. 		01/19/2024 10:45	CCTV'd on 1/19/2024. CCTV confirms broken pipe, root intrusion, offsets. Needs to be fixed. 		CCTV'd line	01/19/2024 10:04														Spill was cleaned up by a licensed company to properly handle sanitary sewage spill. 	Line replacement, root-x chemical to kill roots, cleaning at least quarterly until repair.  	Add to hotspot list. 	Work order created to repair/replace line. 	CCTV confirms broken pipe, root intrusion, offsets. 	CCTV confirms broken pipe, root intrusion, offsets. Needs to be fixed. 	Work order created. 	Arrived and used Vac-truck to hydro clean line and had an a cleaning company perform the cleanup 	CCTV'd line	
2	2SSO10200	Active	Sunnyvale CS	Sunnyvale City	892262	1.1	Certified	Winola Cheong	Senior Engineer		24-JAN-24	24-JAN-24	Monthly Category 3 Spill	221 W Olive Av	12/31/2023 12:46	12/31/2023 12:55	12/31/2023 12:31				Spill from right of way lateral caused by main stoppage. 	37.37144	-122.034	Gravity Mainline; Lower Lateral (Public)			165	Spill was contained in park strip vegetation and curb and gutter. 	N						165	Paved Surface; Street/Curb and Gutter (2 3)	Park Strip 	Spill was in a residential block. Spill reached public street and curb and gutter. 	Y	37.3711	-122.03329	37.37214	-122.03285					12/31/2023 13:30	Eyeball method  3 - 55 gallon trash cans 	San Diego spill chart and eyeball method 	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		60	Sewage in public right of way 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		responded with combo truck to relieve the stoppage and to clean up spill. Used bacteria enzymes to disinfect and clean street. 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Hydro flushed affected area to remove future issues 	CCTV to determine cause. Fog related stoppage. Used combo truck to mitigate.		12/31/2023 16:05	CCTV inspection found Fog in main. 		Not needed system was cleaned and inspected.	01/03/2024 12:00														Not applicable 	Isolated issue post spill follows ups resolved concern. 	N/A	N/A	Repaired Lower clean out 	Not Applicable 	N/A 	Spill Response SOP and lateral repair SOP 	Not needed system was cleaned and inspected.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	892267	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	23-JAN-24	24-JAN-24	24-JAN-24	Category 1 Spill	1527 80th avenue, Oakland Ca	01/21/2024 09:26	01/21/2024 10:02	01/21/2024 10:27	01/21/2024 15:23	24-0343		Manhole in street and Lateral Clean Out (Private) at sidewalk area overflowing.	37.75777	-122.17986	Lateral Clean Out (Private); Manhole	Manhole in street and Lateral Clean Out (Private) at sidewalk area overflowing.		30296	Manhole in street and Lateral Clean Out (Private) at sidewalk area overflowing. the sewage was flowing down on the gutter area to the separate storm drain.	Y	36  storm line called Lion creek, Arroyo Viejo creek, and Damon Slough.	0	28737	36  storm line called Lion creek, Arroyo Viejo creek, and Damon Slough, it is an underground storm line, and daylights on an open stream at 73rd. Avenue & International Blvd.	28737	1559	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		Manhole in street and Lateral Clean Out (Private) at sidewalk area overflowing.	Y	37.75777	-122.17986							01/21/2024 10:27	Spill volume was based on eyewitness account seeing the overflow. Eyewitness noticed the overflow one day before crew arrived. Phone lines were down on 1/20/24. We did not get the notification until the next day.	Manhole 3.54 GPM Pick Hole height 4  = 3.54 GPM Lateral 20 GPM at Clean Out (Private) 3.54 + 20 =Total: 23.54GPM Total 21:27 hours x 60 minutes = 1287 Min x 23.54 GPM = 30,296 Recovered from the gutter: 624' L x 2' W x .167 D x 7.48 = 1559 Gallons Total spill reached to separate storm and could not recover: 30,296 - 1,559 = 28,737 gallons	Debris-Rags		Manhole; Other (specify below)	Sewage spilled from private lateral and manhole.	Vitrified Clay		90	28,737 of sewage overflowed from sewer manhole and private sewer lateral. Spilled sewage overflowed onto the paved surface down the curb and gutter into a storm inlet. 1559 gallons was collected from the curb and gutter area and returned back in the collection system.	Y	Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow		Staff washed down curb and gutter area. Staff vacuumed 1559 gallons from the curb and gutter area. Staff returned captured sewage back in the collection system.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Segment of pip was placed on sewer preventive maintenance program.	Segment of pip was placed on sewer preventive maintenance program.	01/21/2024 12:30	CCTV report found pipe in fair condition.	N			Lion creek, Arroyo Viejo creek, and Damon Slough	Stream/Creek		Lion creek, Arroyo Viejo creek, and Damon Slough	None.	Other (specify below)	None.	N/A	0	Y	N												
2	2SSO10216	Active	West County WW District CS	West County Wastewater District	892269	1.2	Certified	Gordon Times	Collection System Operations Department Manager	23-JAN-24	26-JAN-24	26-JAN-24	Category 1 Spill	3024 Groom Dr	01/22/2024 05:24	01/22/2024 05:52	01/22/2024 05:59	01/22/2024 07:21	24-0352		MH#200901 overflowed @ 3024 Groom Dr. Richmond, CA 94806	37.97427	-122.32742	Gravity Mainline; Manhole			20492	Spill exited MH#200901 and proceeded East approximately 355' following the curbline flowing directly into the Storm Conveyance System. Eventually daylighting approximately 2919' downstream into Rheem Creek.	Y	Standard underground Storm Conveyance System	0	0	Spill exited MH#200901 and proceeded East approximately 355' following the curbline flowing directly into the Storm Conveyance System. Eventually daylighting approximately 2919' downstream into Rheem Creek.	20492	25	Drainage Conveyance System that discharges to surface water		The spill entered a storm drain about 300' from MH in front of 3024 Groom Dr. (1.d and 1.e). It then followed storm drain system and entered Rheem Creek at Annapolis Ave. and Moyers Rd. (1.f and 1.g).	Y	37.97427	-122.32742	37.96781	-122.32864					01/22/2024 05:59	Volume was estimated using the Upstream Lateral Method. (See Attached.)	(See Attached)	Debris-Rags		Manhole		Vitrified Clay		63	The spill caused FOG to accumulate in gutter which carried into manhole. The gutter and manhole were washed down, vacuumed and disinfected.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Upon arrival the crew immediately set up vacuum equipment to prevent sewage from entering the storm drain. Another truck was used to set up on downstream manhole and break the stoppage. All contaminates were removed from the gutter, manhole and storm drain.	Adjusted Schedule/Method of Preventive Maintenance		Frequency of line maintenance has been increased. The Environmental Compliance Team was notified and plan on conducting neighborhood awareness about the effects that wipes have on the sewer system and environment.	1. Adjust line maintenance schedule--Completed January 23, 2024  2. Neighborhood Awareness---February 2024	01/22/2024 07:30	A CCTV Inspection was conducted on January 24 that determined the sewer line is in good condition and has no structural issues. The crew removed a large number of flushable wipes from the sewer which indicated the wipes were the cause of the spill.	N			Rheem Creek	Stream/Creek		Rheem Creek is a small stream that typically runs year-round. It ultimately enters San Pablo Bay several miles downstream.	NA	Other (specify below)	NA	NA	0	N	Y	Samples were taken at the Southwest Corner of Annapolis Dr. and Moyers Rd.	Enterococcus, Ammonia										
9	9SSO10662	Active	County of San Diego CS	San Diego County Dept of Public Works	892275	1.2	Certified	William Morgan	Assistant Engineer	25-JAN-24	31-JAN-24	31-JAN-24	Category 1 Spill	5682 Sweetwater Rd	01/22/2024 12:38	01/22/2024 12:38	01/22/2024 11:21	01/22/2024 15:02	24-0380		5682 Sweetwater Rd	32.68527	-117.01336	Manhole			46850	Spill observed at manhole located at above stated address. Surface area is sloped towards Sweetwater River. Spill flowed directly to the river channel.	Y	Sweetwater River	0	46850	Spill discharged from manhole and traveled across ground approximately 100' to Sweetwater river.	46850	0	Surface Water		Spill occurred due to rain event that overloaded the system	Y	32.68527	-117.01338	32.68541	-117.01305					01/22/2024 14:42	Spill estimated using SSCSC manhole overflow gauge compared to observed flow to determine flow rate X duration of spill.	Smartcover data from manhole located just upstream was used to determine peak flow time to assume start of spill.  Spill end time was observed in person.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Gravity Mainline; Manhole		Concrete	RCP	60	Minimal impact to surrounding grounds, washed away surface dirt and granite. 	Y	Mitigated Effects of Spill (specify below); Property Owner Notified		Clean and disinfect area of spill. Replace washed away dirt and granite. 	Plan Rehabilitation or Replacement of Sewer		Improvements include replacement of approximately 1,600 feet of existing 24-inch to  36-inch VCP and RCP sewer pipe with 30-inch to 42-inch PVC sewer pipe to provide additional hydraulic  capacity. A preliminary design report has been completed and design plans and specifications are  anticipated to be completed by the end of calendar year 2023; construction is anticipated to be completed  by Summer 2024. Funding for construction of the improvements, estimated at $3M, is included in the  District�s current and future year operating budget.	See above	01/23/2024 14:22	Observed heavy rain event coinciding with elevated sewer flows and SSO. 	N			Sweetwater River	River		River	No observed impacts	Restricted Public Access		County of San Diego DEHQ	2	N	N												
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	892276	1.5	Amended	Kent Vian	Asst. Deputy Director	23-JAN-24	06-FEB-24	06-FEB-24	Category 1 Spill	NOT# 40201055600 337 W. 35TH ST. (SMO3)	01/22/2024 12:06	01/22/2024 12:45	01/22/2024 12:03	01/22/2024 12:41	24-0369	07-MAR-24	THE SPILL ORIGINATION HAD MULTIPLE SPILL APPEARANCE POINTS ALONG HARBOR DR.	32.65112	-117.10154	Inside Building or Structure; Manhole	N/A	SPILL APPEARANCE POINT FROM MANHOLES AND LATERALS. LATERALS                                    EQ# 700 W. HARBOR DR.                   10661724 1202 KETTNER BLVD.                  10885477 875 W. CEDAR ST.                       10883890 2734 LYTTON ST.                        10113494 4236 VENUS ST.                          10970758 601 PACIFIC HWY.                       10638242 780 W. G ST.                                10474394 820 W. G ST.                                10474390 925 WATERFRONT PL.                  NO EQ# 2838 KEATS ST.                            10071590 1205 PACIFIC HWY.                     10638294  MANHOLES 2710 N. HARBOR DR.                  10255357 337 W. 35TH ST. (SMO3)             10758386 W. HARBOR DR. & KETTNER BL. 10243219 680 W. HARBOR DR.                   10662200  A ST. & PACIFIC HWY                   10027964                          	2000000	THE SPILL STARTED AS FAR SOUTH AS 337 W. 35TH ST. TO AS FAR NORTH AS 2734 LYTTON ST.	Y	THE SEWER DRAINAGE CONVEYANCE SYSTEM HEADED SOUTHWEST AND SPILLED INTO SAN DIEGO BAY.	0	0	THE DISCHARGE POINTS INTO SAN DIEGO BAY WERE NORTH OF SEAPORT VILLAGE, SOUTH SEAPORT VILLAGE AND (SMO3) 337 W. 35TH ST.	1900000	100000	Building or Structure; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface	N/A	SPILL APPEARANCE POINTS WERE FROM AS FAR SOUTH AS 337 W. 35TH ST. (SMO3) TO AS FAR NORTH AS 2734 LYTTON ST.                        10113494.	Y	32.651	-117.10187	32.72712	-117.18189	32.71148	-117.16912	32.74293	-117.21003	01/22/2024 15:50	SPILL VOLUME ESTIMATIONS WERE CALCULATED USING A VISUAL CALCULATED METHOD AND ENGINEERING ESTIMATE BASED UPON FLOW MODELING AND FLOW METER DATA.	METHODOLOGIES WERE USED TO ASSUME SPILL START TIME IN FLOW METER DATA AND VISUAL OBSERVATIONS OF THE SPILL.	Flow Exceeded Capacity (Separate Collection System Only); Rainfall Exceeded Design, I and I (Separate Collection System Only); Vandalism (specify below)	THE VANDALISM WAS CAUSED BY CITIZENS AND OTHER WELL-DOERS WHO OPENED COLLECTION SYSTEM MANHOLES TO RELIEVE FLOODING OF STREETS AND HOMES. THE CITY AND COUNTY OF SAN DIEGO SUFFERED A HISTORIC RAIN EVENT OF A 1,000-YEAR STORM. THE EVENT DROPPED A HISTORIC 3� OF RAIN IN THREE HOURS, CAUSING SEVERE FLOODING AND INFLOWS TO THE WASTEWATER CONVEYANCE SYSTEM, OVERWHELMING THE SYSTEM AND CAUSING OVERFLOWS.	Lower Lateral; Manhole; Other (specify below)	SYSTEM-DESIGNED OVERFLOW STRUCTURES TO RELIEVE THE SYSTEM OF SURCHARGE WHEN INFLOW EXCEEDS SYSTEM DESIGN CAPACITY.	Concrete; Polyvinyl Chloride (PVC); Vitrified Clay	N/A	60	THE IMPACTS OF THE SPILL WERE TO SURFACE WATERS.  NO OTHER ADVERSE EFFECTS NOTED AT THIS TIME.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	SPILL RESPONSE ACTIVITIES WERE TO MONITOR THE SEWER RELEASE FROM THE OVERFLOW STRUCTURES, MANHOLES AND LATERALS UNTIL THE CATASTROPHIC RAIN EVENT ENDED AND THE SURCHARGED COLLECTION SYSTEM CAUGHT UP TO CONVEY FLOW. CLEAN-UP EFFORTS WERE CONDUCTED 1/23/2024 USING BYPASS PUMPING, VACCUM TRUCKS AND RESTORATION CONTRACTORS.	Other (specify below)	WAITED FOR THE CATASTROPHIC RAIN EVENT TO END AND FOR THE SURCHARGED COLLECTION SYSTEM TO CATCH UP.	TBD	TBD	01/22/2024 18:00	CATASTROPHIC RAIN EVENT	Y	TO VALIDATE DATA	05/06/2024 23:59	SAN DIEGO BAY, SWEETWATER RIVER, SAN DIEGO RIVER, PACIFIC OCEAN.	Ocean; River	N/A	THE PACIFIC OCEAN IS ONE OF SEVEN OCEANS THAT COVER NEARLY THREE-FOURTHS OF THE SURFACE OF THE EARTH. THE SAN DIEGO RIVER IS A PERENNIAL RIVER WITH AN ANNUAL MEAN FLOW OF 117 CFS, A MEAN VELOCITY OF 1.45 F/S AND FLOWS FROM THE SANTA YSABEL MOUNTAINS TO THE PACIFIC OCEAN. 	NO KNOWN IMPACTS TO AQUATIC LIFE.	Public Closure	N/A	DEPARTMENT OF ENVIORNMENTAL HEALTH	6	N	Y	SEE ATTACHED	SEE ATTACHED									TO VALIDATE DATA	
2	2SSO10183	Active	San Mateo CIty CS	San Mateo City	892277	1.3	Certified	Eric Morkve	Leadworker	23-JAN-24	31-JAN-24	31-JAN-24	Category 1 Spill	1630 Bayridge Way	01/23/2024 11:22	01/23/2024 11:49	01/23/2024 11:22	01/23/2024 14:09	24-0409		Manhole overflowing in easement.	37.53044	-122.3333	Manhole			5300	Manhole overflowing in easement behind apartment complex	Y	storm culvert	0	5200	manhole overflowing into easement to drainage culvert entering into Laurel Creek	5200	100	Unpaved Surface		Manhole overflowing onto unpaved surface behind apartment complex	N	37.53049	-122.33336							01/23/2024 12:15	Visual estimate Duration and flow	SSO Duration(hrs/min) EST.SSO RATE(gal/min) EST.SSO VOLUME(gal)	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		51	overflow onto unpaved surface	N	Cleaned Up (specify below); Restored Flow	bagged up dirt that sewage touched in heavy duty trash bags, turn dirt and disinfect.	Photo/Video Restore Flow Mitigate Spill Clean/Disinfect	Inspected Sewer Using CCTV to Determine Cause		CCTV and monitor	N/A	01/23/2024 13:20	CCTV to locate FOG	N			Laurel Creek	Other (specify below)	Creek	Laurel Creek	none	Other (specify below)	none	City of San Mateo	0	N	N												
5S	5SSO10965	Active	Hangtown Creek CS	Placerville City	892278	1.2	Certified	Nicholas Stone	Director of Public Works		15-FEB-24	15-FEB-24	Category 1 Spill	1063 LOCUST AVE	01/19/2024 10:56	01/19/2024 11:45	01/19/2024 09:30		-		SPILL CAME OUT OF CITY GRAVITY MAIN CLEAN OUT.1063 LOCUST AVE.	38.72994	120.794159	Gravity Mainline			193	SPILL CONTAINED TO 6FT. X 9 FT AREA ON BANK WITH EXCESS LIQUIDS RUNNING DOWN APPROXOMENTLY 5 FT. TO CREEK.		HANGTOWN CREEK RUNNING AT NORMAL WINTER FLOW.	133	60	DISCHARGE POINT WAS LIMITED TO CLEAN ON 4 INCH MAIN.	60	133	Surface Water		SPILL COMING OUT CLEAN OUT ON 4 INCH CITY MAIN.	Y	38.72994	120.794159							01/19/2024 15:19	MEASURED VOLUME AREA VOLUME METHOD	ESTIMATED START TIME 9:30 AM WITH A VISUAL SPILL END TIME OF 12:05 PM.	Pipe Structural Problem/Failure - Installation		Gravity Mainline		Ductile Iron		50	MINIMAL IMPACT ON CREEKBED WITH NO NOTICEABLE IMPACT ON CREEK.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		RESTORED FLOW ,VACTORED EXCESS DEBRIS FROM CREEK BANK,DISSENFECTED AND WASHED DOWN AFFECTED AREA.	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		REPAIRED DAMAGE TO PIPE	MILE STONE REACHED	01/22/2024 09:36	INVESTIGATION SHOWED OFFSET OF PIPE CAUSED DEBRIS TO STOP FLOW AND CAUSE CLEANOUT CAP TO BLOW OF ALLOWING SPILL TO EXSIT MAIN	N			HANGTOWN CREEK	Stream/Creek		MEDIAN SIZE CREEL RUNNING THRU TOW WITH NORMAL WINTER FLOW	NO OBSERVED IMPACT	Other (specify below)	N/A	LEWIS ZACHARIAS	0	N	N												
9	9SSO10662	Active	County of San Diego CS	San Diego County Dept of Public Works	892279	1.4	Certified	William Morgan	Assistant Director	25-JAN-24	31-JAN-24	31-JAN-24	Category 2 Spill	10557 Jamacha Blvd	01/22/2024 11:45	01/22/2024 11:45	01/22/2024 11:45	01/22/2024 15:02	24-0379		10557 Jamacha Blvd	32.72455	-116.9699	Manhole			11025	Spill occurred at a manhole located at 10557 Jamacha Blvd. This location is a structure that feeds a siphon main that continues to Grand Ave approximately 11,358' to the west.	Y	Curb and gutter that leads to a dirt drainage channel	0	11025			0	Drainage Conveyance System; Groundwater Infiltration Basin or Facility; Surface Water		Spill traveled in the curbline of Jamacha Blvd to a curb inlet, the curb inlet traverses the street to an unlined dirt channel that leads to an infiltration basin and Sweetwater reservoir.	Y	32.71223	-116.97715							01/22/2024 12:48	Spill estimates were reached by using SSCSC manhole overflow gauge to estimate flow rate X duration of spill.	Spill start and stop times were observed	Flow Exceeded Capacity (Separate Collection System Only); Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole; Siphon		Polyvinyl Chloride (PVC)		33	Minimal impact to surrounding area	Y	Cleaned Up (specify below); Other Enforcement Agency Notified		Site was secured to prevent public access until spill had stopped, then site was inspected for residual wastewater and debris. 	Other (specify below)	N/A Spill was the result of excessive rainfall. No corrective action needed.	Spill was due to heavy rain event which led to excessive I&I, overwhelming system capacities.	N/A	01/23/2024 15:43	Observed heavy rain event resulting in SSO.	N												N													
9	9SSO10662	Active	County of San Diego CS	San Diego County Dept of Public Works	892282	1.2	Certified	William Morgan	Assistant Director	25-JAN-24	31-JAN-24	31-JAN-24	Category 2 Spill	10309 Challenge Blvd	01/22/2024 13:20	01/22/2024 16:25	01/22/2024 13:20	01/22/2024 22:28	24-0392		South of Challenge Blvd at Vista Dr	32.75551	-116.97242	Gravity Mainline			4250	Spill originated in sewer easement south of Challenge Blvd. and ended at an unpaved open area	N						0	Unpaved Surface		Unpaved area south of the spill location.	Y	32.7546	-116.97159							01/22/2024 20:25	Visual observation of flow rate X duration of spill	Start time assumed from resident call in to notify of observed water flowing through easement. End time was observed by county crews.	Natural Disaster (specify below)	Heavy rains damaged gravity sewer main resulting in sewage spilling from system.	Gravity Mainline		Vitrified Clay		55	Minimal impacts from the spill to surrounding areas.	Y	Cleaned Up (specify below); Restored Flow	Inspected area for residual wastewater and debris. Surface clean-up of unpaved surfaces was not required due to adequate flushing  from continuous stormwater flows after SSO stopped and no observed debris.	Gravity main was repaired by replacing damaged sections of gravity main. Spill was contained in unpaved sewer easement.	Other (specify below); Repaired Facilities or Replaced Defect	Repaired sewer main was protected by reinforcing riprap coverage and placing new concrete slurry over effected area.  	Repaired sewer main was protected by reinforcing riprap coverage and placing new concrete slurry over effected area.	Gravity sewer main is repaired. Concrete slurry is scheduled for the week of 1/29/24.	01/25/2024 14:39	Spill caused by heavy rainfall and erosion of embankment parallel to sewer main in the easement. Existing riprap dislodged and damaged gravity sewer main. 	N												N													
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	892283	1.2	Certified	Kent Vian	Asst. Deputy Director	24-JAN-24	14-FEB-24	14-FEB-24	Category 1 Spill	NOT# 40201055598 6655 ALVARADO RD.	01/22/2024 11:30	01/22/2024 11:30	01/22/2024 11:30	01/22/2024 12:53	24-0371		THE SPILL APPEARANCE POINT WAS FROM A MANHOLE LOCATED EAST OF 6655 ALVARADO RD, IN THE STREET ON RESERVOIR DR.	32.77633	-117.0564	Manhole	N/A	N/A	2400	THE SPILL EXITED THE COLLECTION SYSTEM, ENTERING THE STORM DRAIN. THE STORM DRAIN OUTFALL IS IN ALVARADO CANYON.	Y	THE SPILL ENTERED A STORM DRAIN, AND THE OUTFALL WAS IN ALVARADO CANYON	0	0	THE DISCHARGE POINT WAS IN ALVARADO CANYON.	2400	0	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface	N/A	THE SPILL ORIGINATED AT 6655 ALVARADO RD., WENT INTO A STORM DRAIN AND ENTERED ALVARADO CANYON.	Y	32.77643	-117.0564	32.77699	-117.05559	32.77721	-117.05787			01/22/2024 13:30	SPILL VOLUME ESTIMATIONS WERE CALCULATED USING A VISUAL CALCULATED METHOD.	CREWS WERE ONSITE WHEN THE MANHOLE STARTED TO OVERFLOW.	Flow Exceeded Capacity (Separate Collection System Only); Natural Disaster (specify below); Rainfall Exceeded Design, I and I (Separate Collection System Only)	THE CITY AND COUNTY OF SAN DIEGO SUFFERED A HISTORIC RAIN EVENT OF A 1,000-YEAR STORM. THE EVENT DROPPED A HISTORIC 3� OF RAIN IN THREE HOURS, CAUSING SEVERE FLOODING AND INFLOWS TO THE WASTEWATER CONVEYANCE SYSTEM, OVERWHELMING THE SYSTEM AND CAUSING OVERFLOWS. THIS SPILL WAS CAUSED BY RESIDUAL RUNOFF WITH THE WATERSHED.	Manhole	N/A	Concrete	N/A	57	THE IMPACTS OF THE SPILL WERE TO  THE STREET, STORM DRAIN AND STORM CONVEYANCE CHANNEL.	Y	Other (specify below)	CREWS HAD TO WAIT UNTIL RAIN RECEDED AND THE COLLECTION SYSTEM WAS ABLE TO KEEP UP WITH THE FLOW.	UNABLE TO CONTAIN THE SPILL DUE TO A SIGNIFICANT RAIN EVENT. VACTOR TRUCKS WERE DISPATCHED TO OTHER LOCATIONS. THERE WERE FREEWAY CLOSURES DUE THE HEAVY RAIN AND STORM DRAIN FAILURES.	Other (specify below)	N/A	THERE IS NO SPILL CORRECTIVE ACTION TAKEN AT THIS TIME.	THERE IS NO SCHEDULED MILESTONES FOR THIS SPILL.	01/22/2024 13:30	THE CAUSE OF THE SPILL WAS A SIGNIFICANT RAIN EVENT THAT OCCOURED. THE COLLECTION SYSTEM WAS UNABLE TO KEEP UP WITH THE FLOW.	N	N/A		San Diego River 	River; Stream/Creek	N/A	AN EPHEMERAL UNNAMED STREAM WITH AN ANNUAL MEAN FLOW OF <1 CFS AND AN ANNUAL MEAN VELOCITY OF 0.68 F/S. SAN DIEGO RIVER. THE SAN DIEGO RIVER IS A PERENNIAL RIVER WITH AN ANNUAL MEAN FLOW OF 117 CFS, A MEAN VELOCITY OF 1.45 F/S AND FLOWS FROM THE SANTA YSABEL MOUNTAINS TO THE PACIFIC OCEAN. 	NO IMPACTS TO AQUATIC LIFE WERE OBSERVED.	Other (specify below)	THERE WERE NO PUBLIC ACCESS IMPACTS.	DEPARTMENT OF ENVIRONMENTAL HEALTH SERVICES	0	N	N	N/A	N/A									N/A	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	892285	1.2	Certified	Kent Vian	Asst. Deputy Director		03-MAR-24	03-MAR-24	Monthly Category 3 Spill	NOT-40201055774-5373 TROJAN AVE.	01/23/2024 08:42	01/23/2024 09:47	01/23/2024 08:41				SPILL ORIGINATED (32.75473-117.07998) FROM LATERAL CLEAN OUT BEHIND PROPERTY.	32.75473	-117.07998	Lateral Clean Out (Private)	N/A	N/A	550	SPILL BOUNDARIES WERE GRASS AREA AND DIRT.	N	N/A	0				500	Unpaved Surface	GRASS AREA AND DIRT.	SPILL DESTINATION GRASS AREA AND DIRT.	Y	32.75473	-117.07998							01/24/2024 07:48	VISUAL CALCULATED METHOD.	START TIME ESTIMATION IS WHEN CONSUMER CALLS STATION 38 WE RECEIVE THE CALL AND RSPONDE.	Root Intrusion		Gravity Mainline; Lower Lateral		Vitrified Clay	N/A	72	SPILL IMPACT AREA WAS GRASS & DIRT AREA.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Returned All Spill to Sanitary Sewer System	N/A	CITY CREWS RESPONDED,INVESTIGATED,RELIVED,TRACK DOWN FINAL DESTINATION,RETURN ALL SEWER BACK INTO THE SYSTEM,CCTV MAINS AND CLEAN UP AREA.	Adjusted Schedule/Method of Preventive Maintenance	N/A	ADJUST SCHEDULE METHOD TO PREVENT SPILLS.		01/23/2024 18:30	THE CAUSE OF THE SPILL WAS DETERMINED TO BE ROOTS.		N/A	01/24/2024 06:29														N/A	N/A	YES	N/A	N/A	N/A	N/A	N/A	N/A	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	892286	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		16-APR-24	16-APR-24	Monthly Category 3 Spill	800 North Linda Flora Drive	01/23/2024 22:20	01/23/2024 22:39	01/23/2024 22:20				The initial crew arrived at 10:39 P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.081039	-118.465207	Manhole			196	Sanitary Sewer Overflow.	N	None.	0				196	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	Y	34.081039	-118.465207							01/23/2024 22:56	The SSO volume was estimated utilizing a standardized template which calculates the volume by using dimensional analysis.	Volume of a spill contained in a rectangular area Length1050feet Width1feet Depth0.3inches0.0250feet  26.25ft3196gallons 	Root Intrusion		Gravity Mainline		Vitrified Clay		75	On Tuesday, January 23, 2024 at 10:20 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 800 North Linda Flora Drive (TG 591-H7). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 10:56 PM. The cause of the blockage was root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 196 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		On Tuesday, January 23, 2024 at 10:20 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 800 North Linda Flora Drive (TG 591-H7). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 10:56 PM. The cause of the blockage was root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 196 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		On Tuesday, January 23, 2024 at 10:20 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 800 North Linda Flora Drive (TG 591-H7). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 10:56 PM. The cause of the blockage was root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 196 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   		01/23/2024 22:56	On Tuesday, January 23, 2024 at 10:20 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 800 North Linda Flora Drive (TG 591-H7). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 10:56 PM. The cause of the blockage was root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 196 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   		Not At this Time.	01/23/2024 22:56														None At This Time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule. 	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule. 	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule. 	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule. 	None At This Time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule. 	On Tuesday, January 23, 2024 at 10:20 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 800 North Linda Flora Drive (TG 591-H7). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 10:56 PM. The cause of the blockage was root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 196 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	Not At this Time.	
2	2SSO10113	Active	Pittsburg City CS	Pittsburg City	892291	1.2	Amended	Hilario J Mata	Asst Director of Public Works	24-JAN-24	26-JAN-24	26-JAN-24	Category 2 Spill	500 Loveridge Cir	01/23/2024 09:31	01/23/2024 10:03	01/23/2024 09:31	01/23/2024 09:29	24-0400		The spill was flowing out of the manhole into a drainage conveyance system 3.5 away from manhole.	38.00691	-121.87327	Manhole			2100	The spill was flowing out of the manhole and through a drainage system approx. 360 feet.	Y	The drainage conveyance system is located 3.5 East of the manhole #4352.  	2100	0			2100	Drainage Conveyance System; Paved Surface		The spill was flowing out of manhole #4352 into a drainage conveyance located 3.5 feet away from manhole and flow approximately 360 feet..	Y	38.00691	-121.87327							01/23/2024 09:31	The volume was estimated using the duration of flow method.	The duration of flow method was used to calculate the start and end time.	Debris-Rags; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		44	Contact paved surface and entered storm drain conveyance system approximately 360 feet.   	N	Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Upon arrival we noticed manhole #4352 overflowing into storm drain. We set up vacuum tube to contain spill from flowing in storm drain. The second truck went down stream and unplug the blockage. We started performing a wash down and rodding and vacuuming the storm drain. once we cleaned all the storm drains, we tested the water for ammonia to make sure there was no more sewer in the drain.   	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Adjusted the cleaning scheduled by adding to chronic list that will be cleaned every 3 months. 	This segment of sewer main will be add to chronic cleaning list every 3 months.	01/23/2024 14:00	CCTV'd the sewer pipe and discovered heavy grease (FOG), and rags in the main. 	N		01/26/2024 15:00										N													
4	4SSO10382	Active	Diamond Bar City CS	Diamond Bar City	892294	1.2	Certified	Robert Swartz	Sr. CE	24-JAN-24	07-FEB-24	07-FEB-24	Category 1 Spill	2390-0149 (707 Grand Avenue, Diamond Bar)	01/21/2024 12:52	01/21/2024 14:15	01/21/2024 12:45	01/21/2024 15:24	24-0344		CSMD Map Sheet No. 2390 Manhole No. 149 MMS No. 8628292 Manhole No. 149 was overflowing. 	34.00515	-117.82022	Manhole	Manhole No. 149		7000	Manhole No. 149 was overflowing onto the street.  A portion of the spill entered a storm drain at the South/East corner of Grand Avenue at 22628 Golden Springs.	Y	A portion of the spill entered a storm drain at the South/East corner of Grand Avenue at 22628 Golden Springs, which leads to PD 0683 Reed Canyon Channel, City Drain, Diamond Bar Golf Course (pond), natural drainage, natural streams and minor channels, MTD 0998, PD 1445, US Waters (storm drain system), PD 1515 - Lycoming Channel, PD 1472, Unknown drain, San Jose Creek - Thompson Creek to U/S San Gabriel River. 	0	6000	A portion of the spill entered a storm drain at the South/East corner of Grand Avenue at 22628 Golden Springs.	6000	1000	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Manhole No. 149 was overflowing onto the street.  A portion of the spill entered a storm drain at the South/East corner of Grand Avenue at 22628 Golden Springs, which leads to PD 0683 Reed Canyon Channel, City Drain, Diamond Bar Golf Course (pond), natural drainage, natural streams and minor channels, MTD 0998, PD 1445, US Waters (storm drain system), PD 1515 - Lycoming Channel, PD 1472, Unknown drain, San Jose Creek - Thompson Creek to U/S San Gabriel River. 	Y	34.00657	-117.82138							01/21/2024 15:00	CWEA SSCSC Manhole Gauge	The start time is obtained from the reporting party, the end time is when the crew clears the obstruction, and the overflow stops.	Root Intrusion		Gravity Mainline		Vitrified Clay		58	N/A	N	Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Upon arrival, manhole no. 149 was overflowing.  Set up containment on curb side in front of overflowing manhole. Rodder equipment was utilized to break down the mainline heavy root blockage. Contained portion of sewage spill and returned to the sanitary sewer system. All required agencies were notified.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		The mainline was placed on a 90-day Rodder Periodic. Grand Ave from MH 150 to MH 147 PM # S10E0445	N/A	01/21/2024 16:20	The mainline was placed on a 90-day Rodder Periodic. Grand Ave from MH 150 to MH 147 PM No. S10E0445	N			San Jose Creek - Thompson Crk to U/S San Gabriel River	River		Manhole No. 149 was overflowing onto the street.  A portion of the spill entered a storm drain at the South/East corner of Grand Avenue at 22628 Golden Springs, which leads to PD 0683 Reed Canyon Channel, City Drain, Diamond Bar Golf Course (pond), natural drainage, natural streams and minor channels, MTD 0998, PD 1445, US Waters (storm drain system), PD 1515 - Lycoming Channel, PD 1472, Unknown drain, San Jose Creek - Thompson Creek to U/S San Gabriel River. 	No impacts.	Other (specify below)	No impact.	Los Angeles County Flood Control District	0	N	N												
9	9SSO10650	Active	City of Encinitas CS	Encinitas City 	892298	1.5	Certified	SHAWN ATHERTON	UTILITY SUPERVISOR	24-JAN-24	01-FEB-24	01-FEB-24	Category 1 Spill	1279 Loch Lamond Drive	01/22/2024 10:45	01/22/2024 10:55	01/22/2024 10:45	01/22/2024 11:20	24-0362		1279 Loch Lamond Drive, MH in front of this address. Because we have no record of any sewer issues occurring at this location in the past (other than storm related), we believe the spill occurred because of illegal dumping of storm water runoff into the sewer system. No blockage occurred; the spill was the result of the sewer pipe reaching full capacity. The sewer system could not handle the amount of rainwater being discharged into the sewer.  During dry weather, we have inspected the area for illegal storm water connections, to date we have not found any. 	33.03395	-117.27856	Manhole		None	7200	a portion of the spill entered a Storm Drain inlet approximately 70 feet North of the sewer MH 	Y	storm drain curb inlet.	3600	3600	Not available, the spill occurred because we encountered a larger than normal rain event. The City of Encinitas received approximately 3.13  of rain in a short period of time.  Normally, there are no issues with the sewer system at this location. Because we were having the huge amount of rain, WWC crews were doing a patrol of potential areas of concern. It was during this patrol the spill was discovered. During the record storm event occurring on April 10, 2020, we had a similar issue. Because there are no records of any sewer issues at this location in the past(other than storm related), we believe the spill occurred as the result of illegal dumping of storm drain runoff into the sewer system.  	3600	3600	Drainage Conveyance System; Surface Water; Unpaved Surface		There was NO sewer blockage found. The spill occurred because of a very large rain event. We believe homeowners were opening their sewer clean outs and allowing water to go into the sewer system, so they could prevent their property from flood damage. The sewer system reached full capacity and we began to vacuum the water from the MH. In the picture, you will notice there are no signs of a sewer spill, no TP, Feces or other debris came out of the MH. Also, when the rain stopped, the sewer overflow stopped too.  We estimate 7,200 gallons came out of the MH, by vacuuming the water from the MH, we prevented 3,600 from entering the storm drain system.. Total estimated spill volume to the storm drain system was 3,600 Gallons. This 3,600 gallons went into the storm drain, mixed with millions of gallons of rainwater and went to the Ocean several miles west of the spill location.  	Y	33.03395	-117.27856							01/22/2024 11:40	Because we had a similar size rain event occurring in April of 2020, we were doing a patrol of potential flooding sites. During this patrol, our crew found the MH just before it started overflowing (because they checked the water level in the MH). They observed the water level was getting high, so they called in the crew with the combination sewer cleaner. The combination cleaner crew arrived within 10 minutes and began to vacuum just after the MH started to overflow. We used the SSCSC Manhole overflow spill gauge. to estimate the volume.	Actual times the patrol crew arrived on-sight and the time the combination cleaner crew arrived on-site and the time the MH started to overflow.	Rainfall Exceeded Design, I and I (Separate Collection System Only)	We have CCTV inspected the sewer pipe, there were no problems found. We do not feel there are any issues with the sewer pipe. The stormwater entered the sewer system because property owners removed their sewer clean out caps and allowed rainwater to enter the sewer system. They did this to prevent property damage caused by rain/flooding. 	Gravity Mainline		Vitrified Clay		40	We do not feel there was any impact because of this spill. The 3,600 gallons of water that entered the storm drain system, mixed with Millions of gallons of rainwater and was diluted.  	Y	Contained All or Portion of Spill; Returned Portion of Spill to Sanitary Sewer System		Please see #3 above. Because of a similar size rain event occurred on April 10, 2020, we were doing a patrol of potential. areas with possible flooding. The patrol crew found the sewer MH before it started to spill, but noticed the water level raising in the MH, so they called in the combination sewer cleaning crew to start vacuuming the spill. The vacuuming crew arrived just after the MH began to overflow. Crews remained on-sight vacuuming for approximately 60 minutes.   	Other (specify below)	We plan on doing some smoke testing to see if someone has connected a storm drain pipe to our sewer system. Also, plan on doing a patrol again of the area during all rain events to try and catch someone draining their property. 	We will perform smoke testing of the sewer system to determine if someone has illegally connected a storm drain pipe to our sewer system.  	Will perform patrol during every rain event and schedule smoke testing during the summer months.	01/22/2024 11:45	Spill was related to the storm event. The rain got very intense, because of the amount of rain, we patrolled areas of past flooding conditions. During this patrol, we found the sewer MH on Loch Lamond before it was spilling. Vacuum truck crews arrived on-sight and began to recover the spill water. the crew vacuumed for approximately 60 minutes. The rain started to slow down and the MH stopped overflowing. 	Y	We have not located the property owners that are allowing rain water to enter the sewer system. We need to continue looking for these people until they are located.	09/30/2024 12:00	Ultimately the Ocean	Ocean		spill traveled West for several miles in the storm drain system before exiting into the ocean 	None, Spill was diluted with millions of gallons of rainwater. 	Other (specify below)	No public access in the storm drain system/pipes	N/A	0	N	N	None	N/A									We have not located the property owners that are allowing rain water to enter the sewer system. We need to continue looking for these people until they are located.	
4	4SSO10389	Active	Glendora City CS	Glendora City	892303	1.2	Certified	Robert Swartz	Sr. CE	24-JAN-24	31-JAN-24	31-JAN-24	Category 1 Spill	2341-0106 (100 East Ada Avenue, Glendora)	01/20/2024 23:50	01/21/2024 01:00	01/20/2024 23:20		-		CSMD Map Sheet No. 2341 Manhole No. 106 MMS No. 8628271 Manhole No. 106 was overflowing. 	34.13237	-117.86419	Manhole	Manhole No. 106		600	Sewage was flowing from manhole no. 106 onto the street. 	Y	Sewage was overflowing from Manhole No. 106 onto the street, which leads to City Drain, BI 0438 - Unit 2 - Line G, BI 0517 - Line B, Big Dalton Wash, Big Dalton Wash - Big Dalton DB to Walnut Creek, Walnut Creek, San Gariel River - Santa Fe Dam to Thienes Ave, and San Gabriel River.  	0	600	Sewage was overflowing from manhole no. 106 onto the street.  	600	0	Street/Curb and Gutter (2 3)		Sewage was overflowing from manhole no. 106 onto the street.  	N									01/21/2024 01:20	CWEA SSCSC Manhole Gauge.	The start time is obtained from the reporting party, the end time is when the crew clears the obstruction, and the overflow stops.	Root Intrusion		Gravity Mainline		Vitrified Clay		64	N/A	Y	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow		Upon arrival, Manhole No. 106 was overflowing.  We utilized a rodded equipment to break down the mainline heavy root blockage. We were unable to set containment due to heavy rain.  All required agencies were promptly notified.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		The mainline was placed on a 90-day Rodder periodic.  	N/A	01/21/2024 02:00	The mainline was placed on a 90-day Rodder Periodic.  Ada Avenue from MH 105 to MH 106.  PM # S10E0446	N			San Gabriel River	River		Sewage was overflowing from Manhole No. 106 onto the street, which leads to City Drain, BI 0438 - Unit 2 - Line G, BI 0517 - Line B, Big Dalton Wash, Big Dalton Wash - Big Dalton DB to Walnut Creek, Walnut Creek, San Gariel River - Santa Fe Dam to Thienes Ave, and San Gabriel River.  	No impacts. 	Other (specify below)	No impact.	N/A	0	N	N												
2	2SSO10104	Active	Ccsf - San Francisco Airport CS	CCSF - San Francisco Airport	892304	1.1	Certified	Jennifer Acton	Director of Maintenance		26-JAN-24	26-JAN-24	Monthly Category 3 Spill	Gate F5	12/27/2023 10:13	12/27/2023 10:20	12/27/2023 10:05				Spill originated from two sewer cleanouts adjacent to Gate F5	37.619742	-122.386973	Gravity Mainline; Other (specify below)	Spill appeared from two gravity mainline cleanouts		89	Area impacted by the spill included the paved surface adjacent to aircraft Gate F5.  The spill flowed downgradient and towards a storm drain catch basin.	Y	Spill reached one storm drain catch basin	3				89	Drainage Conveyance System; Paved Surface		Area impacted by the spill included the paved surface adjacent to aircraft Gate F5.  The spill flowed downgradient and towards a storm drain catch basin.  Approximately 3 gallons entered the storm drain catch basin.	Y	37.619819	-122.38696	37.619523	-122.3866	37.619475	-122.386692	37.619691	-122.386942	12/27/2023 11:07	Spill volume estimation calculated using field measurements collected by responding spill team member.  Flow rate estimated using eyeball visual estimation by spill team member.	Spill start and end times estimated using information provided by responding parties on scene.	Fats, Oil and Grease (FOG)		Gravity Mainline		Ductile Iron		22	Spill impacted paved surface around aircraft gate and restricted ground support vehicle movement on the ramp.  One storm drain catch basin affected.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Airport Communications dispatched Airfield Safety Operations, Fire Department, Facilities, and Spill Team.  Airport Fire Department used absorbent material to protect storm drain catch basin.  Airport Plumbers used vactor truck and hydro jet blocked gravity mainline to restore flow.  Paved surface was cleaned by scrubbing contractor.  Affected storm drain system was pumped out and rinsed by Plumbers using vactor truck.  All waste and rinse water was returned to sanitary system for processing.	Adjusted Schedule/Method of Preventive Maintenance		Regular hydro jetting of downstream gravity main line to be scheduled while additional investigation conductted.  BPPP Team performed FOG inspection of tenant facility and will perform follow up inspections of the grease interceptor.		12/27/2023 12:18	Plumbers observed grease on the equipment during hydro jetting.  These observations helped determine grease deposition caused the blockage in the drain line and resulting backup.		Inspection of grease interceptor	12/27/2023 12:18														NA	NA	BPPP Team to perform follow up inspections of the grease interceptor.	NA	NA	NA	NA	NA	Inspection of grease interceptor	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	892306	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	24-JAN-24	31-JAN-24	31-JAN-24	Category 1 Spill	4058 Edwards Avenue, Oakland Ca	01/21/2024 12:43	01/21/2024 15:20	01/21/2024 13:49		-		2 Manhole structures in the street.	37.77566	-122.16469	Manhole	2 Manhole structures in the street.		393	2	Y	Underground 12  Storm line called Lion creek, Arroyo Viejo creek, and Damon Slough, daylights at 73rd. Avenue and International Blvd.	0	213	Underground 12  Storm line called Lion creek, Arroyo Viejo creek, and Damon Slough, daylights at 73rd. Avenue and International Blvd.	213	180	Drainage Conveyance System that discharges to surface water		393 gallons overflowed from two manholes at this location. 213 gallons spilled into a storm inlet at this location. 180 gallons was recovered from street curb and gutter.	Y	37.77566	-122.16469							01/21/2024 13:49	M-H: # 1: 1  pick hole diameter x 4  height = 3.54 GPM M-H # 2: 10 GPM 3.54 + 10 = 13.54 x 29 minutes = 393 gallons Total Spill Recovered 300' L x 1'W x .08' D x 7.48 - Gal = 180 gallons. Lost in the storm line: 393 - 180 = 213 Gal	Start time based on eyewitness account. End time was based on responding crew restoring the flow.	Debris from Construction		Gravity Mainline		Vitrified Clay		99	393 gallons overflowed from two manholes at this location. 213 gallons spilled into a storm inlet at this location. 180 gallons was recovered from street curb and gutter.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Staff washed and cleaned the affected area in the street and gutter.	Staff washed and cleaned the affected area in the street and gutter. Staff captured and recovered part of the spill and returned it to the system. 	Added Sewer to Preventive Maintenance Program		Line was placed on six-month hydro maintenance program.	Line was placed on six-month hydro maintenance program.	01/21/2024 19:30	CCTV found construction debris (rock and gravel) to have been the cause of the overflow.	N			Lion creek, Arroyo Viejo creek, and Damon Slough	Slough		Tidal Waters.	None.	Other (specify below)	None.	N/A	0	Y	N												
2	2SSO10177	Active	San Carlos City CS	San Carlos City	892313	1.3	Certified	Steven J. Machida	Public Works Director	24-JAN-24	06-FEB-24	06-FEB-24	Category 1 Spill	3 Beverly Dr	01/22/2024 02:29	01/22/2024 03:15	01/22/2024 01:45	01/22/2024 04:06	24-0350		Spill appeared in 2 locations. The lower level of the house as it was below the level of the cleanout, and also manhole BD/01.	37.50239	-122.27899	Inside Building or Structure; Manhole			32760	Photos of manhole, street, inside house of spill and the construction trenches that caused the spill	Y	Spill entered CB-718 and CB-974 which flow to Pulgas Creek.	0	0	Photos of running water where samples were taken.	31860	900	Building or Structure; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		Spill was located in front of the property at 3 Beverly Drive and inside the lower level of the property. Areas included: a bedroom, restroom, laundry room, hallway and garage.	Y	37.50239	-122.27899	37.502385	-122.279233	37.502361	-122.27933	37.500636	-122.277015	01/22/2024 06:59	Spill duration and rate of flow were used and calculated which can be found in the notes. They were compared to a manhole spill chart and for the shower pan drain, employees were asked how long they believed it would take to fill a 5 gallon bucket while watching the video. That came to 15gpm. The manhole spill chart appeared to be less than 100gpm so 75 Gpm was used.	Spill flow chart and eyeball estimate of flow from employees of the shower pan drain.	Construction Diversion Failure; Rainfall Exceeded Design, I and I (Separate Collection System Only)	The contractors installed an un approved 10 inch plug with 4 inch bypass. With the heavy rain and I&I the 10 inch pipe surcharged and the 4 inch bypass could not handle the flow.	Gravity Mainline		Polyvinyl Chloride (PVC)		15	The spill impacted the lower level of 3 Beverly drive. The spill also reached Pulgas creek but no impact was visible. There was heavy rain during this event. 	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow	The flow was restored once the contractors removed the unapproved 10 inch plug with a 4 inch bypass.	The crew set up the vac truck and vacuumed the spill until the truck was full. Due to heavy rain and low staffing, the crew was not able to contain much more of the spill.	Other (specify below)	Met with contractors. They are not allowed to install any future bypasses without approval from the city.	Met with contractors. They are not allowed to install any future bypasses without approval from the city.	N/A	01/22/2024 12:20	Contractor caused the spill by installing unapproved bypass. Sewer crew could not remove the steel plates to access the bypass and remove it. 	N			Pulgas Creek	Other (specify below)	Creek	Creek that flows behind properties	None observed	Other (specify below)	No public access to the creek. Residents have access if they go behind properties. 	San Carlos/San Mateo County	0	N	Y	Samples were taken from the outfall plus up and downstream locations.	Ammonia and enterococcus										
9	9SSO10647	Active	City of Coronado CS	Coronado City	892317	1.4	Amended	Kim Godby	Utilities Supervisor	24-JAN-24	09-FEB-24	09-FEB-24	Category 1 Spill	Embarcadero Park	01/22/2024 13:25	01/22/2024 17:30	01/22/2024 13:00	01/22/2024 21:36	24-0391	24-JUN-24	Severe rain event on 1/22/24 within the San Diego region.  From Transbay Pump Station, Coronado system crosses the San Diego Bay and connects to San Diego Metro system on Kettner Blvd, adjacent to Embarcadero North Park. The spill manhole is located within the Embarcadero North Park, approximately 20' from the Embarcadero Marina waterway.  The distance between the the spill manhole and connecton to San Diego Metro is approximatley 1053'.	32.70752	-117.169208	Force Main			7780860	Spill from the Coronado manhole overflowed onto the sidewalk approxmiately 50', onto the grassy area, down the rock embankment and into the Embarcadero Marina waterway.  	Y	Embarcadero North Park parking lot storm drain inlet and pipes discharge to the San Diego Bay. 	0	0	overflowed the walkway, grass, and down the rock embankment into the Embarcadero Marina waterway.  After daylight inspection, parking lot flow entered storm drain system, discharging to San Diego Bay. 	7780860	2000	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		Embarcadero North Park (32.70752,-117.169208), parking lot, Embarcadero Marina waterway and San Diego Bay	N									01/23/2024 02:45	Pump volume and duration, meter.  Additional refinement in process and final data to be provided in the technical report. 	high water alarms and email notification date/time of visual verification of active spill. 	Other (specify below)	In discussion with City of San Diego to determine cause of San Diego Metro system surcharging, as potential cause for spill.  Further refinement to be provided in technical report. 	Force Main; Manhole		Ductile Iron		14	Park closure, pedestrian walkway closure, adjacent receiving water closure (San Diego Bay & Embarcadero Marina)	Y	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Park closure, barricades, notification/coomunications with other agencies (County of San Diego, SD Regional Water Board, Cal OES, City of San Diego, San Diego Unified Port District).  Dispatched Patriot Enviornmental for area sanitation and cleanup/recovery. 	Other (specify below)	Evaluation in process and discussions with City of San Diego Metro for potential corrective action.  Will describe further in technical report. 	Evaluation in process and discussions with City of San Diego Metro for potential corrective action.  Will describe further in technical report. 	Evaluation in process and discussions with City of San Diego Metro for potential corrective action.  Will describe further in technical report. 	01/23/2024 04:45	Evaluation in process and discussions with City of San Diego Metro for potential corrective action.  Will describe further in technical report. 	Y	Multi-agency discussion and discovery of San Diego Metro system surcharge.	03/08/2024 17:45	San Diego Bay and Embarcadero Marina	Other (specify below)	Bay and Marina	San Diego Bay and Marina	none observed	Public Closure		County of San Diego - DEHQ	3	N	Y	Sample ID locations EH-540 Seaport Village, Eh-545 Ruocco Park, Eh-150 Embarcadero (NR)	Total and Fecal Coliforms, Enterococcus									Multi-agency discussion and discovery of San Diego Metro system surcharge.	
9	9SSO10647	Active	City of Coronado CS	Coronado City	892318	1.2	Amended	Kim Godby	Utilities Supervisor	24-JAN-24	09-FEB-24	09-FEB-24	Category 1 Spill	Country Club Area	01/22/2024 13:30	01/22/2024 13:30	01/22/2024 13:30	01/24/2024 18:33	24-0449	21-JUN-24	1. Severe rain event in the San Diego region.  During the storm, power was lost to dual Parker Storm and Sewer Pump Stations.  Several streets within the Country Club drainage basin were flooded with as much, or more than 18  of rain water, covering several manholes.  Ultimatley, the sanitary collection system backed up, seeping out through manhole lid pickholes and comingled with flood waters in the streets.  No manhole lids floated.  2.  Without power to the sewer station, the sanitary wetwell, located inside the underground station filled, forcing the sanitary manhole lid to pop off, which then flooded the entire station, including the storm station.   	32.4138	117.643199	Manhole; Other (specify below)	1. Several sanitary manholes & streets located within the Country Club  storm drain basin were pumped via portable pump to nearby Bandel storm pump station to eliminate flooding throughout the area.  Bandel storm pump station discharges to North Beach outfall to the Pacific Ocean.  2.  Sanitary sewage that flooded the dual Parker station was partially pumped to North Beach outfall via portable pump.  Additionally, pumper trucks collected sewage from the flooded station and returned it to a downstream sanitary manhole. 	North Beach storm drain outfall - after comingled storm and sanitary flood waters diverter to Bandel Storm Pump Station, comingled flows discharged through storm force main.   	10459749	several manholes throughout the Country Club area and North Beach storm drain outfall to the Pacific Ocean.	Y	Portable pumps were staged to move comingled storm and sanitary water to nearby Bandel storm pump station.  From Bandel, flows were discharged through a force main storm pipe to the North Beach outfall (Pacific Ocean).  From the sanitary flooded Parker dual station, sewage was pumped to the Parker storm force main, discharging to the North Beach storm outfall (Pacific Ocean).  	0	0	manholes lids and North Beach outfall	10459749	30000	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		Final spill destination was North Beach storm drain outfall (Pacific Ocean), collected from the Country Club area, Parker sewer pump station and Bandel storm pump station. 	Y	32.4138	117.643199							01/23/2024 22:00	Pump run times/dates (station pumps and portable pumps)	Portable pump curves, station remote monitoring of pump run times/dates, alarm notification.  	Other (specify below)	During a severe storm, the Parker sewer station wetwell bolted manhole lid poped off, causing the station to flood.  Power to the dual storm and sewer station was disabled, which allowed the Country Club area streets to flood and the sewer system to surcharge. 	Other (specify below); Pump Station - Power	See 4a	Ductile Iron; Polyvinyl Chloride (PVC)	Pump station pipes did not fail.  	26	Flooded streets and beach closure	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Ongoing public outreach to advise residents of station restoration status. 	Diverter diluted comingled storm-sewage waters to North Beach storm drain outfall (Pacific Ocean) to elimate flooded area and to immediately assess and restore Parker storm and sewer station.   Patriot Environmental dispatched to assist in cleanup and station flood removal.  	Other (specify below); Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect	At the time of this event, a new Parker Storm and Sewer Pump Stations were under construction on an adjacent property to replace the current stations. The existing Parker storm and sewer stations will remain active until the new station is in service.  Replacement of electrical components, motors and controls to both storm and sewer stations began immediately after the stations flooded condition was resolved.  The sewer wetwell manhole lid was bolted down with an additional cross bar.   	The sewer wetwell manhole lid was bolted down with an additional cross bar.   	Under evaluation for additional safety measures to put into place during future rain events.  Detailed information to follow in the technical report. 	01/23/2024 22:00	Ongoing.   Detailed information to follow in the technical report.	Y	Due dilligence for preventitive plan for future rain events. Detailed information to follow in the technical report.	03/08/2024 20:06	Pacific Ocean	Ocean		Recreational use	None observed	Public Closure	Ongoing closure contributed by northerly currents transporting contaminated runoff/sewage from Tijuana River Valley outfall flows.  Closure dates to be verified in technical report. 	County of San Diego - DEHQ	7	N	Y	8th Street & Balboa Ave (Site A), 8th Street mid-block between Balboa Ave and Cabrillo Ave (Site B), 8th Street & Cabrillo Ave (Stie C); EH-050 Loma Ave, EH-060 North Beach/Navy Fence, IB-079 Avenida Lunar, IB-080 Avenida Del Sol; IB-068 Silver Strand -Guard Shack	Total and Fecal Coliform, Enterococcus (Enterolert & ddPCR)									Due dilligence for preventitive plan for future rain events. Detailed information to follow in the technical report.	
5F	5SSO10724	Active	City Of Merced CS	Merced City	892319	1.3	Certified	Bill Osmer	Public Works Manager - WQC		25-JAN-24	25-JAN-24	Monthly Category 3 Spill	851 W 23rd St.	12/08/2023 12:19	12/08/2023 12:28	12/08/2023 12:03				The spill exited the manhole #10M84 and traveled south along the curb and gutter to the NE corner catch basin bubble-up.	37.30991	-120.4854	Gravity Mainline			168	Photographs showing the spill location.	N		168				168	Other (specify below); Street/Curb and Gutter (2 3)	Catch Basin Bubble-up	Exited from manhole # 10M84 to NE corner of 23rd and P St. storm drain bubble-up catch basin.	Y	37.30983	-120.48584							12/08/2023 12:42	We used the spill estimation worksheet and broke down the footage into recognizable shapes to determine the dimensions of the shape.	We used the time the caller noticed the water coming from the manhole, marked the spill footprint and ending location, and time the blockage was unplugged.	Fats, Oil and Grease (FOG)		Gravity Mainline		Concrete		80	The spill entered the curb and gutter and traveled south 120 feet south  before being fully captured in a storm drain bubble-up on the NE corner of 23rd and P St.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		upon arrival at 12:28pm the crew identified the sewage coming from the manhole and determined it was being captured in a storm drain bubble-up box. They coned off the area, marked the wet footprint, took pictures and proceeded to unplug the blockage.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		We CCTV'd the pipe segment and identified the problem. We adjusted the preventative maintenance schedule to include this section of pipe.		12/08/2023 14:29	We CCTV'd the pipe segment and determined the cause to be related to FOG. The pipe was blocked so we cleaned using a 3/4inch Warthog nozzle.		NA	12/08/2023 14:29														Reported the spill into CIWIQS	We added the section to our Enhanced area list.	WE added to a monthly maintenance schedule.	No planned rehab project.	We CCTV inspected the pipe segment. 	None	SEA list #25 and #46	no modification needed.	NA	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	892321	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		16-APR-24	16-APR-24	Monthly Category 3 Spill	2260 North Centento Drive	01/24/2024 10:36	01/24/2024 10:58	01/24/2024 10:36				The initial crew arrived at 10:58 A.M. and discovered a 6-inch mainline sewer serving the referenced area backed up due to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed.  As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and to determine the proper corrective actions to be taken. In addition, the crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.	34.111366	-118.325842	Manhole			106	Sanitary Sewer Overflow	Y	It was estimated that approximately 106 gallons of sewage backed out of the sewer as a result of the blockage, of that amount 67 gallons of sewage entered an adjacent City of Los Angeles owned catch basin located at 2250 North El Centento Drive. The crew was able to establish containment and subsequently they returned the entire back up amount to the sanitary sewer system.  	67				106	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system	It was estimated that approximately 106 gallons of sewage backed out of the sewer as a result of the blockage, of that amount 67 gallons of sewage entered an adjacent City of Los Angeles owned catch basin located at 2250 North El Centento Drive. The crew was able to establish containment and subsequently they returned the entire back up amount to the sanitary sewer system.  	Y	34.111366	-118.325842							01/24/2024 11:50	The SSO volume was estimated utilizing a standardized template which calculates the volume by using dimensional analysis.	Spill flowrate and volume determination based on flowout pickhole or opening Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening0.5inches Flowrate per pickole/opening (gpm)1gpm # of pickholes/openings1 Total flowrate (gpm)1gpm Duration of spill (minutes)74minutes Total flow (gallons)106gallons  Volume of a spill contained in a rectangular area Length50feet Width10feet Depth0.125inches0.0104feet  5.21ft339gallons 	Root Intrusion		Gravity Mainline		Concrete		99	It was estimated that approximately 106 gallons of sewage backed out of the sewer as a result of the blockage, of that amount 67 gallons of sewage entered an adjacent City of Los Angeles owned catch basin located at 2250 North El Centento Drive. The crew was able to establish containment and subsequently they returned the entire back up amount to the sanitary sewer system.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		On Wednesday, January 24, 2024 at 10:36 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 2260 North El Centento Drive (TG 593-F3). A CWCD crew was immediately dispatched to the incident location and determined that the 6-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 11:50 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 106 gallons of sewage backed out of the sewer as a result of the blockage, of that amount 67 gallons of sewage entered an adjacent City of Los Angeles owned catch basin located at 2250 North El Centento Drive. The crew was able to establish containment and subsequently they returned the entire back up amount to the sanitary sewer system.    	Inspected Sewer Using CCTV to Determine Cause		As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.		01/24/2024 11:50	On Wednesday, January 24, 2024 at 10:36 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 2260 North El Centento Drive (TG 593-F3). A CWCD crew was immediately dispatched to the incident location and determined that the 6-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 11:50 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 106 gallons of sewage backed out of the sewer as a result of the blockage, of that amount 67 gallons of sewage entered an adjacent City of Los Angeles owned catch basin located at 2250 North El Centento Drive. The crew was able to establish containment and subsequently they returned the entire back up amount to the sanitary sewer system.    		None At This Time.	01/24/2024 11:50														None At This time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	Not At This Time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	On Wednesday, January 24, 2024 at 10:36 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 2260 North El Centento Drive (TG 593-F3). A CWCD crew was immediately dispatched to the incident location and determined that the 6-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 11:50 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 106 gallons of sewage backed out of the sewer as a result of the blockage, of that amount 67 gallons of sewage entered an adjacent City of Los Angeles owned catch basin located at 2250 North El Centento Drive. The crew was able to establish containment and subsequently they returned the entire back up amount to the sanitary sewer system.    	None At This Time.	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	892322	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		10-APR-24	10-APR-24	Monthly Category 3 Spill	2100 North Mayview Drive	01/24/2024 16:52	01/24/2024 18:30	01/24/2024 16:52				The initial crew arrived at 6:30 P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.100091	-118.276119	Lateral Clean Out (Private)			121	Sanitary Sewer Overflow.	N						0	Other (specify below)	The entire back up amount soaked into the ground.	34.100091  -118.276119	Y	34.100091	-118.276119							01/24/2024 19:29	The SSO volume was estimated utilizing a standardized template which calculates the volume by using dimensional analysis.	Volume of a spill contained in a rectangular area Length13feet Width16feet Depth0.3inches0.0250feet  5.20ft339gallons  Volume of a spill contained in a rectangular area Length70feet Width5feet Depth0.3inches0.0250feet  8.75ft365gallons  Volume of a spill contained in a rectangular area Length9feet Width6feet Depth0.5inches0.0417feet  2.25ft317gallons 	Root Intrusion		Gravity Mainline		Vitrified Clay		95	It was estimated that approximately 121 gallons of sewage backed out of the sewer as a result of the blockage where it entered the property at 2100 North Mayview Drive. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.  	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow		On Wednesday, January 24, 2024 at 4:52 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 2100 North Mayview Drive (TG 594-C4). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 7:29 PM. The cause of the blockage was root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 121 gallons of sewage backed out of the sewer as a result of the blockage where it entered the property at 2100 North Mayview Drive. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.   	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.		01/24/2024 19:29	On Wednesday, January 24, 2024 at 4:52 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 2100 North Mayview Drive (TG 594-C4). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 7:29 PM. The cause of the blockage was root intrusion. All necessary clean-up was then performed.		Not At this Time.	01/24/2024 19:29														None At This Time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	None At this time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	On Wednesday, January 24, 2024 at 4:52 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 2100 North Mayview Drive (TG 594-C4). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 7:29 PM. The cause of the blockage was root intrusion. All necessary clean-up was then performed.  As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	Not At this Time.	
4	4SSO10382	Active	Diamond Bar City CS	Diamond Bar City	892324	1.2	Certified	Robert Swartz	Sr. CE	25-JAN-24	27-FEB-24	27-FEB-24	Category 1 Spill	2390-0127 (22809 Hilton Head Drive, Diamond Bar)	01/23/2024 16:50	01/23/2024 18:08	01/23/2024 16:30		-		CSMD Map Sheet No. 2390 Manhole No. 127 MMS No. 8629996 Manhole No. 127 was overflowing. 	34.0086	-117.81756	Manhole	Manhole No. 127		300	Sewage was flowing from manhole no. 127 onto the street.  The spill entered a storm drain at 22809 Hilton Head Drive in front of MH 127 at the storm drain curbside.	Y	The spill entered a storm drain at 22809 Hilton Head Drive in front of MH 127 at the storm drain curbside, which leads to natural drainage, natural streams and minor channels, MTD 0998, PD 1445, US Waters (storm drain system), PD 1515 - Lycoming Channel, PD 1472, Unknown drain, San Jose Creek - Thompson Creek to U/S San Gabriel River. 	0	300	The spill entered a storm drain at 22809 Hilton Head Drive in front of MH 127 at the storm drain curbside.	300	0	Drainage Conveyance System; Street/Curb and Gutter (2 3)		The spill entered a storm drain at 22809 Hilton Head Drive in front of MH 127 at the storm drain curbside, which leads to natural drainage, natural streams and minor channels, MTD 0998, PD 1445, US Waters (storm drain system), PD 1515 - Lycoming Channel, PD 1472, Unknown drain, San Jose Creek - Thompson Creek to U/S San Gabriel River. 	Y	34.0085	-117.81781							01/23/2024 18:18	CWEA SSCSC Manhole Gauge.	The time is obtained from the reporting party, the end time is when the crew clears the obstruction, and the overflow stops.	Root Intrusion		Gravity Mainline		Other (specify below)	ABSCP	44	N/A	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow		Set up containment. Utilized rodder equipment to break down the mainline heavy root blockage. The area was thoroughly cleaned.  All required agencies were promptly notified.	Other (specify below)	Will inspect the mainline via CCTV to determine if further action is required.	Will inspect the mainline via CCTV to determine if further action is required.	N/A	01/23/2024 19:30	Will inspect the mainline via CCTV to determine if further action is required.	Y	Will inspect the mainline via CCTV to determine if further action is required.	03/06/2024 10:29	San Jose Creek - Thompson Creek to U/S San Gabriel River	River		The spill entered a storm drain at 22809 Hilton Head Drive in front of MH 127 at the storm drain curbside, which leads to natural drainage, natural streams and minor channels, MTD 0998, PD 1445, US Waters (storm drain system), PD 1515 - Lycoming Channel, PD 1472, Unknown drain, San Jose Creek - Thompson Creek to U/S San Gabriel River. 	No impacts. 	Other (specify below)	No impact.	N/A	0	N	N											Will inspect the mainline via CCTV to determine if further action is required.	
9	9SSO10706	Active	Temecula Valley RCS	Eastern Municipal Water District	892325	1.4	Certified	Ken Tagney	Director of Water Reclamation		22-FEB-24	22-FEB-24	Monthly Category 3 Spill	MH01227, Lexus Easement Temecula	01/24/2024 11:20	01/24/2024 11:43	01/24/2024 11:20				42081 DLR Drive, Temecula 92591. Approx.:500 ft away from the address listed. Manhole #01227	33.50945	-117.15474	Manhole			650	The spill was caused by vandalism. Manhole lid was opened and debris was thrown inside. Spill reached unpaved dirt surface surrounding manhole.	N						50	Unpaved Surface		The spill was caused by vandalism. Manhole lid was opened and debris was thrown inside. Spill reached unpaved dirt surface surrounding manhole.	N									01/24/2024 11:43	surface area calculation.	surface area calculation.	Debris-General; Vandalism (specify below)		Manhole		Vitrified Clay		55	The spill impacted the soil located around the manhole.	N	Contained All or Portion of Spill; Restored Flow		EMWD has collected spill material, removed the debris-blockage and cleaned the site.	Other (specify below)	vandalism	vandalism		01/24/2024 14:00	cause of spill: vandalism		N/A	01/24/2024 14:00														N/A	N/A	N/a	N/A	N/A	N/A	N/A	N/A	N/A	
8	8SSO11477	Active	Fontana City CS	Fontana City  DPW	892326	1.3	Amended	Christopher Andrew Garcia	Utilities and Streets Supervisor	25-JAN-24	29-JAN-24	29-JAN-24	Category 2 Spill	Sierra and Foothill	01/18/2024 19:15	01/18/2024 19:45	01/18/2024 18:45		-		GPS 34.10657 N _117.43581 W Spill started at MH J19_30 and flowed South 260' to Northeast corner of Sierra and Foothill where all 18000 gallons were captured.	34.09838	-117.43568	Manhole			18000	Spill started at MH J19_30 and flowed South with a width of 2' to 8' wide. We multiplied the flow rate times number of holes that were discharging wastewater. We multiplied that by duration and gave us total estimate gallons. Catch Basin conveyance system. Entry location was at Northeast corner of Sierra and Foothill where all 18000 gallons were captured by Vactors. Vactors have a tank capacity of 2500 gallons. Crew captured 8 tank loads.  	Y	Catch Basin conveyance system. Entry location was at Northeast corner of Sierra and Foothill where all 18000 gallons were captured by Vactors. Vactors have a tank capacity of 2500 gallons. Crew captured 8 tank loads  	18000	0			18000	Drainage Conveyance System		GPS 34.10657 N _117.43581 W Spill started at MH J19_30 and flowed South 260' to Northeast corner of Sierra and Foothill where all 18000 gallons were captured.	Y	34.09838	-117.43568							01/18/2024 17:45	Flo Spill started at MH J19_30 and flowed South with a width of 2' to 8' wide. We multiplied the flow rate times number of holes that were discharging wastewater. We multiplied that by duration and gave us total estimate gallons. Catch Basin conveyance system. Entry location was at Northeast corner of Sierra and Foothill where all 18000 gallons were captured by Vactors. Vactors have a tank capacity of 2500 gallons. Crew captured 8 tank loads.Blockage was cleared at 17:30	We multiplied the flow rate times number of holes that were discharging wastewater. We multiplied that by duration and gave us total estimate gallons. Pictures of Area. MH where spill was reported.	Debris-General		Gravity Mainline	Contractor repaving Sierra ave hit MH and dropped asphalt grindings in MH at various locations.	Vitrified Clay		40	No impact spill was contained controlled and cleaned. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Emergency call from Police Dept where we responded within 30 minutes. of call. First Vactor vacuum truck arrived within 15 minutes for containment at Sierra ave And Foothill and begun vacuuming. Second truck arrived to clear blockage by 17:45. Third Vactor truck arrived on site to continue vacuuming at corner of Sierra and Foothill. Spill was stopped and contained at Sierra and Foothill. Where all 18000 gallons were vacumned and returned to our sanitary sewer system.	Other (specify below)	Speak with Contractors about importance of any type of debris entering out Mainline. CCTV video assessment before and after project verifying lSewer mainline is clean and free of all debris and maintaining flow.	Speak with contractor in regard to proper procedure of Sewer main debris .Continued CCTV assessments of line before  and aftern to maintain a sewer main clean of debris. 	CCTV Video assessment of line before contractors begin any repaving job to make sure mainline is free of any debris. CCTV video assessment after job is completed as well. Making sure contractor did not create any issues in our sewer sanitary mainline.	01/19/2024 01:00	mergency call from Police Dept where we responded within 30 minutes. of call. First Vactor vacuum truck arrived within 15 minutes for containment at Sierra ave And Foothill and begun vacuuming. Second truck arrived to clear blockage by 17:45. Third Vactor truck arrived on site to continue vacuuming at corner of Sierra and Foothill. Spill was stopped and contained at Sierra and Foothill. Where all 18000 gallons were vacumned and returned to our sanitary sewer system.	Y	Continuing CCTV video assessment verifying all sewer main and laterals are in good order.	01/31/2024 16:30										N												Continuing CCTV video assessment verifying all sewer main and laterals are in good order.	
2	2SSO10104	Active	Ccsf - San Francisco Airport CS	CCSF - San Francisco Airport	892327	1.1	Certified	Jennifer Acton	Director of Maintenance		26-JAN-24	26-JAN-24	Monthly Category 3 Spill	Gate G6	12/07/2023 12:20	12/07/2023 12:22	12/07/2023 12:10				Spill originated from a sanitary sewer manhole on the airfield ramp paved surface at Gate G6.  	37.618463	-122.391948	Inside Building or Structure; Lateral Clean Out (Public); Manhole; Other (specify below)	4 appearance points in total;  (1) manhole, (2) floor drains, and (1) lateral cleanout	4 appearance points;  (1) manhole, (2) lateral floor drains, and (1) lateral cleanout	317	Overflow from the manhole impacted the paved surface at aircraft Gate G6.  Spill also appeared from additional locations, floor drains and cleanout, and impacted the paved surfaces within utility rooms and the baggage make-up area breezeway between Gate G9 and G7.  	Y	The spill impacting the paved surface near the baggage make-up area affected two storm drain catch basins and one storm drain trench drain within the breezeway.	216				317	Drainage Conveyance System; Paved Surface		Spill from manhole impacted the paved surface at aircraft Gate G6.  Spill also appeared from additional locations, floor drains and cleanout, and impacted the paved surfaces within the baggage make-up area breezeway between Gate G9 and G7.  (2) storm drain catch basins and (1) storm drain trench drain were affected within the baggage make-up area.	Y	37.618467	-122.39195	37.618603	-122.391862	37.618521	-122.392433	37.61816	-122.39265	12/07/2023 13:22	Spill volumes calculated using field measurements collected by responding Spill Team member on scene.  Flow rates from appearance points in the breezeway were estimated by Spill Team members using eyeball estimation. 	Incident details and information, including estimated incident times, were determined using information provided by Airfield Safety Operations, responding officers and other responding parties.	Debris-General; Fats, Oil and Grease (FOG)		Gravity Mainline		Ductile Iron		26	Spill from the manhole impacted the paved surface at aircraft Gate G6.  Spill from floor drains and cleanout impacted the paved surfaces within the baggage make-up area breezeway between Gate GG9 and G7.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Airport Emergency Communications dispatched Airfield Safety Operations, ADMs, Facilities and Spill Team to the incident. Plumbers used vactor truck to pump down the sewer manhole and hydrojetted the sewer drain to remove the blockage and to return flow.  Scrubbing contactor arrived on scene and cleaned the affected ground surface areas.  Plumbers used approximately 600 gallons of potable water to flush the affected storm drain system and captured all wastewater at the downstream manholes.  All wastewater was returned to the sanitary sewer system for processing.	Other (specify below)	Perform FOG inspection of upstream food service establishment.  Additional investigation to be performed.	Performed FOG inspection of upstream food service establishment.  Additional investigation to be performed.		12/11/2023 13:30	Plumbers observed grease and general debris during hydro jetting and determined FOG and general debris as the cause of the blockage in the gravity mainline.  		FOG inspections to be performed at additional upstream food service establishment tenants that are occupying space in the boarding area.	12/07/2023 15:00														NA	NA	NA	NA	NA	NA	NA	NA	FOG inspections to be performed at additional upstream food service establishment tenants that are occupying space in the boarding area.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	892331	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	25-JAN-24	25-JAN-24	25-JAN-24	Category 2 Spill	7009 Spencer Street, Oakland Ca	01/23/2024 12:25	01/23/2024 12:35	01/23/2024 08:00	01/24/2024 08:30	24-0427		Manhole in street and evidence of discharge from Lateral Clean Out (Private) near the public sidewalk area.	37.75699	-122.19418	Lateral Clean Out (Private); Manhole	Manhole in street and evidence of discharge from Lateral Clean Out (Private) near the public sidewalk area.		3000	Manhole in street and evidence of discharge from Lateral Clean Out (Private) near the public sidewalk area, the sewage flowed into the street and gutters to 71st Avenue & Hawley St. where a small amount of sewage enters the storm catch basin where it was fully captured. Sewer crews used 2 sewer trucks to restore flow, vacuum, wash down, and cleanup the spilled area in sidewalks, street, gutter, and storm drain catch basin. 	Y	 Storm drain catch basin.	10	0			3000	Drainage Conveyance System; Street/Curb and Gutter (2 3)	2,900 gallons from curb and gutter, and 10 gallons was recovered from the storm inlet.	2,900 gallons from curb and gutter, and 10 gallons was recovered from the storm inlet.	Y	37.75699	-122.19418	37.75568	-122.19531					01/23/2024 13:00	300 minutes x 10 GPM = 3000 gallons.	Start time was based on see click fix email. End time was based on responding crew restoring the flow.	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		90	2,900 gallons from curb and gutter, and 10 gallons was recovered from the storm inlet.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Staff used two vacuum trucks to clean, wash, and vacuum all the spill and returned the spill the sewer system.	Adjusted Schedule/Method of Preventive Maintenance		Adjusted schedule to hydro 3-month high frequency program.	Adjusted schedule to hydro 3-month high frequency program.	01/23/2024 21:30	CCTV found grease to have been the cause of the overflow.	N												Y													
4	4SSO11403	Active	County Sanitation District No. 29 CS	Los Angeles Cnty Sanitation Districts	892342	1.4	Certified	Andre Schmidt	Wastewater Collection Systems Manager		29-JAN-24	29-JAN-24	Monthly Category 3 Spill	21st Street Sewer	12/15/2023 07:15	12/15/2023 07:59	12/15/2023 06:00				The spill originated from LACSD�s 21st Street Sewer Manhole (MH) 29 0555A located at the intersection of Cherry Ave and E. Hill St in the City of Signal Hill.	33.797109	-118.167549	Manhole			700	The spill area from MH 29 0555A extended approximately 150 feet north of MH 20 0555A and approximately 375 feet south of MH 29 0555A across the north bound lanes of Cherry Avenue. The spill spread out over the steep street surface in a sheet flow pattern and was dispersed by vehicle traffic. A small amount of the spill traveled along the gutter and into a nearby catch basin.	Y	The spill entered a catch basin that drains to a 30-inch diameter storm drain system that travels south down Cherry Avenue.	50				700	Drainage Conveyance System that discharges to surface water; Paved Surface		The spill area from MH 29 0555A extended approximately 150 feet north of MH 20 0555A and approximately 375 feet south of MH 29 0555A across the north bound lanes of Cherry Avenue.	Y	33.797281	-118.16759	33.797279	-118.167503	33.796082	-118.167573	33.796231	-118.167667	12/15/2023 08:20	A spill rate of 5 gallons per minute was established based on pictures and video taken at the spill site and observations in the downstream sewer that most flow was getting past the blockage. The spill duration was estimated to be 140 minutes. From this information, it is estimated that approximately 700 gallons of wastewater spilled from MH 29 0555A. All 700 gallons of the spill volume was recovered.	A spill start time of 6:00 a.m. was estimated based on visual observations of the spill volume present at the time that LACSD staff arrived at the spill site and based on historical flow data from nearby sewers that indicates that flows pick up in the morning at about 6:00 a.m., per the typical diurnal wastewater flow pattern. The spill end time of 8:20 a.m. is based on visual observations of LACSD maintenance staff at the spill site.	Debris-General		Gravity Mainline		Vitrified Clay		97	The spill impacted the general intersection of Cherry Avenue and E. Hill Street as vehicles spread the spilled wastewater over the asphalt pavement.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		See attachment	Other (specify below)	LACSD performed preventative maintenance cleaning on the upstream sewer trunk and CCTV inspections of upstream manholes.	LACSD cleaned several reaches upstream of MH 29 0555A to ensure no other debris were present. Additionally, LACSD inspected all sixteen MHs upstream of MH 29 0555 and determined the concrete debris did not originate from the MH shafts or shelves.		12/15/2023 17:00	See attachment.		N/A	01/08/2024 16:00														N/A	N/A	N/A	N/A	LACSD performed MH inspections on the sixteen MHs upstream of MH 29 0555 and determine the concrete debris did not originate from the MH shafts or shelves.	N/A	N/A	N/A	N/A	
9	9SSO10652	Active	City of La Mesa CS	La Mesa City	892344	1.2	Certified	Joe Kuhn	Environmental Manager	26-JAN-24	06-FEB-24	06-FEB-24	Category 1 Spill	Normal Ave at Parks Ave	01/22/2024 14:15	01/22/2024 14:15	01/22/2024 14:15	01/23/2024 14:00	24-0414		32.7565, -117.0311.  MH in middle of the intersection.  	32.7565	-117.0311	Manhole			6750	Video of MH	Y	Storm Drain on Normal Ave. 	0	0	Downstream University Channel.  	6750	0	Street/Curb and Gutter (2 3)		32.7565, -117.0311.  MH in middle of the intersection.  	Y	32.7565	-117.0311							01/22/2024 15:45	Manhole flow chart included in SSMP-ERP. 	PW employee reported at 2:15pm while dealing with flooding.  At 3:45pm the location was no longer flowing. 	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Gravity Mainline		Vitrified Clay		77	Low. The sewer was full of storm water. Citywide flooding was occurring at the time. 	Y	Other (specify below)	Logging and reporting spill.  Citywide flooding was occurring at this time.  City received 3-4  of rain on 1/22.  	See above	Other (specify below)	See below. 	Examine I&I in this basin.  The City has a robust I&I mitigation and capital program.  This location will be part of a future phase. Current phases include $14 million worth of sewer replacement in a very sensitive area similar to this one. 	25/26 	01/23/2024 09:00	I&I.  Sewer full of storm water during massive rain event. Downstream streets were flooded and cars were floating/stranded. 	N			University Channel several miles upstream of Chollas Creek	Other (specify below)	Storm Drain Upstream of Floodway Channel 	Storm Drain Upstream of Floodway Channel 	N/A	Other (specify below)	None	N/A	0	N	N												
4	4SSO10425	Active	San Dimas City CS	San Dimas City	891502	2.1	Certified	Robert Swartz	Sr. CE		31-JAN-24	31-JAN-24	Monthly Category 3 Spill	2429-0085 (McKinley Avenue, San Dimas)	12/10/2023 10:25	12/10/2023 12:00	12/10/2023 08:30				CSMD Map Sheet No. 2429 Manhole No. 85 MMS No. 8596831 Manhole No. 85 was overflowing.	34.08943	117.79298	Manhole	Manhole No. 85		300	Spill went onto the asphalt and grassy area (Bonelli Park Campgrounds). 	N						30	Unpaved Surface		Spill went onto the asphalt and grassy area (Bonelli Park Campgrounds). 	N									12/10/2023 11:45	CWEA SSCSC Manhole Gauge	The start time is obtained from the reporting party, the end time is when the crew clears the obstructions, and the overflow stops.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		52	N/A	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		We broke down heavy grease and rags stoppage with a combo truck. All necessary agencies were notified.	Inspected Sewer Using CCTV to Determine Cause		CCTV inspection on 12/12/23 revealed signs of rags, hand towels.  Source determined to be from park restrooms. 		12/10/2023 14:00	CCTV inspection performed 12/12/23 showed signs of paper hand towels. Source originated from park restrooms discharge to McKinley pump station.  Electro-mechanics confirmed pump station passed paper-laden wet-well to gravity sewer. Accumulation leading to stoppage.		N/A	02/12/2024 12:00														N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	
5S	5SSO10901	Active	City of Sacramento Utilities CS	Sacramento City	892356	1.1	Certified	Kevin Guerra	Superintendent		29-JAN-24	29-JAN-24	Monthly Category 3 Spill	6475 Driftwood Street Sacramento, Ca. 95831	12/18/2023 09:09	12/18/2023 09:35	12/18/2023 09:00				The spill had multiple appearance points, the first was at a manhole in the street. 	38.50932	-121.54781	Lateral Clean Out (Private); Manhole		There was a  second appearance point, it was at a property line cleanout at the reporting address.	132	The spill left the manhole in the street and traveled south to a drain inlet in a gutter pan that had piles of leaves causing the spill to puddle at multiple points.  The drain was plugged by the crew trapping most of the spill in the gutter pan.   small portion of the spill made into the conveyance system where it was removed and returned to the sewer system from a downstream manhole. The second appearance point was a private cleanout and the spill was trapped in the grass area of the address.	Y	There is 445 feet of gutter pan that the spill traveled in to the drain inlet. It entered a section of main that is 12 inch piping that is 390 feet long. The system travels to a sump station downstream before it is pumped to a waterway.	10				132	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		The spill entered the drainage system at a drain inlet that was located 445 feet away from the appearance points. 	Y	38.50932	-121.54781	38.50779	-121.54766					12/18/2023 09:50	A portion of the spill became active after arrival, we believe from the water that was being used to unplug the private cleanout. We took pictures of the flow coming from the manhole and then compared them to our spill estimation pictures, and matched the two at 10gpm. We used documented times from when the spill first started at the manhole to when the plug was relieved 13 minutes to get 130 gallons. There was already a spill appearance point that was not active at the property line cleanout. This area was measured and a volume calculation was used to get this portion of the spill 2 gallons, we added this to the estimated total that was captured on the surface. We then subtracted the total on the surface122 gallons from the total spill 132 gallons to get the total that was trapped in the conveyance system 10 Gallons.	We interviewed the caller and he gave us information that we used to determine the start time, as the spill originated at his Private cleanout. We used the time documented by staff of when they unplugged the sewer main to get the end time.	Collection System Maintenance Failure (specify below); Root Intrusion	Main was on a scheduled cleaning work order that was late.	Gravity Mainline		Vitrified Clay		61	The spill had minor impact we responded and relieved the plugged main within an hour of being notified. The spill was recovered and the area was cleaned within 3 hours. There was not a service disruption.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	The spill was recovered from two different locations. the first was what was trapped on the ground the second was what had made it into the drainage system.	Responders blocked off the drain inlet upon arrival trapping a portion of the spill on land and had the supervisor turn off the drainage sump station downstream. Once the plugged main was cleared crews tested the drainage system to see how far the spill had traveled. With what was captured on the ground they determined there was 10 gallons that made it into the conveyance system. The drainage system already had water in it from the previous rain storm. It was determined that there was 2,259 gallons of water already in the system. Crews removed 3600 gallons of water to recover the 10 gallons. They then vacuumed and cleaned the surface area recovering  all 132 gallons and returning it to the sewer system.	Inspected Sewer Using CCTV to Determine Cause		The main segment was cleaned the same day and inspected the following. The main was rodded soon after to remove the roots that were found to be the cause.		12/18/2023 12:26	The main segment was CCTV'd and the cause was found the next day. The main then had mechanical root removal performed and it was added into the root abatement annual schedule. The maintenance history of the main was researched and was included in the decision making of the changes needed to prevent another spill.		N/A	12/19/2023 09:20														N/A	Root removal will be performed annually.	The main was added to a cycled work order to be rodded for root removal annually, along with its scheduled jet cleanings.	N/A	We inspected the main using CCTV to find the cause of spill. No repairs were necessary.	N/A	N/A	N/A	N/A	
5S	5SSO10901-C	Active	City of Sacramento Combined CS	Sacramento City	892357	1.1	Certified	Kevin Guerra	Superintendent		27-JAN-24	27-JAN-24	Monthly Category 3 Spill	2150 Stockton Blvd. Sacramento, Ca. 95817	12/21/2023 09:21	12/21/2023 09:49	12/19/2023 13:00				The appearance point was a manhole located on private property.	38.55762	-121.46164	Manhole			815	The spill exited a manhole on the side of the property where it was trapped on a walk way and planter area.	N						815	Paved Surface; Unpaved Surface		The spill exited the manhole on the property and did not leave the immediate area.	Y	38.55762	-121.46164							12/20/2023 09:00	The spill had already receded upon arrival. The water line the spill left behind was used for measurements and depths. These measurements were used in volume calculations to estimate the amount of the spill.	We used the caller and the witnesses that were present at the location statements, to get the start and end times. The staff onsite first noticed the spill and  relieved the blockage before they notified the City of Sacramento.	Root Intrusion		Gravity Mainline		Vitrified Clay		101	There wasn't  an impact from this spill, service was not interrupted.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	The spill exited and went back into the combination wastewater system. The area was cleaned, pine needles and debris removed and area was sanitized.	There was no active spill upon arrival. Debris was removed from the site and the area was washed down and sanitized.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause	Main segment was added to annual Rod schedule for root removal.	The spill was cleaned the next day after the spill, After the main was inspected and the cause was found it was then Rodded to remove the roots that caused the spill.		12/21/2023 13:00	The main was not an a current Rod or schedule cleaning work order. Both of these issues were resolved, and the roots have been removed that were the cause of the spill.		N/A	01/04/2024 14:33														N/A	The main was added onto an annual cycled work order for root removal that will be included  with the mains cleaning schedule.	Main will continue to be cleaned and was added into root removal program.	N/A	The main was inspected for condition assessment and to find the cause of the spill.	N/A	N/A	N/A	N/A	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	892358	1.2	Certified	Kent Vian	Asst. Deputy Director		03-MAR-24	03-MAR-24	Monthly Category 3 Spill	NOT-40201056826-NURSERY RD.	01/26/2024 13:52	01/26/2024 14:22	01/26/2024 13:50				SPILL ORIGINATED (32.72017-117.14706) FROM MANHOLE # 9047 EQ#11115282.	32.72017	-117.14706	Gravity Mainline	N/A	N/A	144	SPILL BOUNDARIES WERE DIRT & GRASS AREA.	N	N/A	0				0	Drainage Conveyance System; Other (specify below); Unpaved Surface	SOIL & GRASS AREA.	SPILL DESTINATION DIRT AND GRASS AREA.	Y	32.72021	-117.147							01/26/2024 15:50	VISUAL CALCULATED METHOD.	START TIME ESTIMATION IS WHEN THE CONSUMER CALLS STATION 38, WE RECEIVE THE CALL AND RESPOND.	Debris-General		Gravity Mainline		Vitrified Clay		65	SPILL IMPACT AREA WAS ON THE GRASS & DIRT AREA.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below)	N/A	CITY CREWS INVESTIGATED,RESPONDE,TRACK DOWN FINAL DESTINATION,CCTV MAINS AND CLEAN UP AREA.	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance	N/A	ADJUST THE SCHEDUAL METHOD TO PREVENT FUTURE SPILLS.		01/26/2024 15:50	N/A		NO	01/27/2024 10:28														N/A	N/A	N/A	N/A	REPLACE MANHOLE FRAME AND COVER.	N/A	N/A	N/A	NO	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	892359	1.4	Certified	Kent Vian	Asst. Deputy Director	02-FEB-24	14-FEB-24	14-FEB-24	Category 1 Spill	NOT-40201056924-IMPERIAL AVE & MARLIN DR.	01/27/2024 13:32	01/27/2024 13:50	01/27/2024 13:30	01/27/2024 16:06	24-0503		SPILL ORIGINATED IMPERIAL AVE & MERLIN DR.	32.70911	-117.07109	Manhole	N/A	N/A	25080	THE MANHOLE IS IN THE CHOLLAS CREEK STORM DRAIN CONVEYANCE SYSTEM.	Y	THE SEWER DRAINED INTO THE CONVEYANCE SYSTEM ON CHOLLAS CREEK.	2500	22780	THE DISCHARGE POINT WAS IN CHOLLAS CREEK .	22780	2500	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Surface Water	N/A	THE SPILL DESTINATION WAS THE DRAINAGE CONVEYANCE SYSTEM CHOLLAS CREEK.	Y	32.70924	-117.07128							01/27/2024 16:59	VISUAL CALCULATED METHOD.	THE SPILL START TIME ASSUMPTION WAS WHEN DISPATCH RECEIVED THE CALL FROM THE CONSUMER REPORTING THE SPILL.	Natural Disaster (specify below)	THE CITY AND COUNTY OF SAN DIEGO SUFFERED A HISTORIC RAIN EVENT OF A 1,000-YEAR STORM. THE EVENT DROPPED A HISTORIC 3� OF RAIN IN THREE HOURS, CAUSING SEVERE FLOODING AND INFLOWS TO THE WASTEWATER CONVEYANCE SYSTEM, OVERWHELMING THE SYSTEM AND CAUSING OVERFLOWS.	Gravity Mainline; Manhole	N/A	Vitrified Clay	N/A	52	THE SPILL IMPACT AREA WAS CHOLLAS CREEK.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	CITY CREWS INVESTIGATED AND RELIVED THE STOPPAGE OF ROCKS AND PERFORMED A POST SSS CCTV OF THE MAIN.	Other (specify below)	MAINTAIN A VISUAL INSPECTION OF MANHOLES.	CCTV, MAINS CLEANING CYCLE. REPLACE THE EXISTING FRAME AND COVER WITH A SEALED COMPOSITE COVER TO PREVENT I & I AND EXFILTRATION FROM THE MANHOLE STRUCTURE.	OBTAIN QUOTES FOR NEW COVERS, OBTAIN ENVIRONMENTAL CLEARANCE, REPLACE COVER BY AUGUST 2024.	01/27/2024 16:59	N/A	N	N/A	02/02/2024 11:55	CHOLLAS CREEK	River	N/A	AN EPHEMERAL CREEK WITH AN ANNUAL MEAN FLOW OF <1 CFS AND AN ANNUAL MEAN VELOCITY OF 0.68 F/S.	NO OBSERVED IMPACTS TO AQUATIC LIFE	Other (specify below)	NO PUBLIC ACCESS WAS IMPACTED.	DEPARTMENT OF ENVIRONMENTAL HEALTH SERVICES	0	N	N	N/A	N/A									N/A	
5S	5SSO10901	Active	City of Sacramento Utilities CS	Sacramento City	892360	1.2	Certified	Kevin Guerra	Superintendent		29-JAN-24	29-JAN-24	Monthly Category 3 Spill	1949 Naomi Way Sacramento, CA. 95815	12/28/2023 17:51	12/28/2023 20:21	12/28/2023 17:30				The spill appeared at a manhole located in front of this address.	38.62207	-121.42015	Manhole			129	Spill was contained on the street and an unpaved area to the North of the manhole.	N						129	Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		The spill flowed to and was contained in an unpaved area North of the manhole.	Y	38.62211	-121.4204							12/28/2023 20:43	The spill was trapped on the surface, we measured and got depths around the manhole and in the unpaved area. WE then used volume equations to estimate the total spill. 	We used the witness statement  of when they first saw the spill to get the start time. And our responder documented the time they relieved the plugged main, we used that time to get the end time.	Vandalism (specify below)	Large pieces of wood were found in the flowline, this had sstopped flow as 	Gravity Mainline		Vitrified Clay		99	There was not an impact from this spill, service was never interrupted and the spill was contained and returned to the sewer system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	We vacummed and washed down the area and returned the spill to the wastewater system.	The spill was not active when we arrived on site, it was contained in the unpaved area to the North of the appearance point. After we unplugged the main, we called for a crew to assist with recovering the spill and returning it to the sewer system, along with washing and cleaning the area. 	Inspected Sewer Using CCTV to Determine Cause		N/A		12/28/2023 23:30	The main segment was cleaned the following day, and large pieces of wood were removed from the downstream manhole. We then inspected the main with CCTV equipment and found no other cause for the spill. We determined it to be vandalism.		N/A	01/24/2024 14:17														N/A	N/A	N/A	N/A	We inspected the main segment and found the cause of spill to be vandalism, there was not a repair needed.	N/A	N/A	N/A	N/A	
8	8SSO11477	Active	Fontana City CS	Fontana City  DPW	892326	2.1	Certified	Kyle Scribner	Public Works Manager	25-JAN-24	29-JAN-24	29-JAN-24	Category 2 Spill	Sierra and Foothill	01/18/2024 19:15	01/18/2024 19:45	01/18/2024 18:45		-		GPS 34.10657 N _117.43581 W Spill started at MH J19_30 and flowed South 260' to Northeast corner of Sierra and Foothill where all 18000 gallons were captured.	34.09838	-117.43568	Manhole			18000	Spill started at MH J19_30 and flowed South with a width of 2' to 8' wide. We multiplied the flow rate times number of holes that were discharging wastewater. We multiplied that by duration and gave us total estimate gallons. Catch Basin conveyance system. Entry location was at Northeast corner of Sierra and Foothill where all 18000 gallons were captured by Vactors. Vactors have a tank capacity of 2500 gallons. Crew captured 8 tank loads.  	Y	Catch Basin conveyance system. Entry location was at Northeast corner of Sierra and Foothill where all 18000 gallons were captured by Vactors. Vactors have a tank capacity of 2500 gallons. Crew captured 8 tank loads  	18000	0			18000	Drainage Conveyance System		GPS 34.10657 N _117.43581 W Spill started at MH J19_30 and flowed South 260' to Northeast corner of Sierra and Foothill where all 18000 gallons were captured.	Y	34.09838	-117.43568							01/18/2024 17:45	Flo Spill started at MH J19_30 and flowed South with a width of 2' to 8' wide. We multiplied the flow rate times number of holes that were discharging wastewater. We multiplied that by duration and gave us total estimate gallons. Catch Basin conveyance system. Entry location was at Northeast corner of Sierra and Foothill where all 18000 gallons were captured by Vactors. Vactors have a tank capacity of 2500 gallons. Crew captured 8 tank loads.Blockage was cleared at 17:30	We multiplied the flow rate times number of holes that were discharging wastewater. We multiplied that by duration and gave us total estimate gallons. Pictures of Area. MH where spill was reported.	Debris-General		Gravity Mainline	Contractor repaving Sierra ave hit MH and dropped asphalt grindings in MH at various locations.	Vitrified Clay		40	No impact spill was contained controlled and cleaned. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Emergency call from Police Dept where we responded within 30 minutes. of call. First Vactor vacuum truck arrived within 15 minutes for containment at Sierra ave And Foothill and begun vacuuming. Second truck arrived to clear blockage by 17:45. Third Vactor truck arrived on site to continue vacuuming at corner of Sierra and Foothill. Spill was stopped and contained at Sierra and Foothill. Where all 18000 gallons were vacumned and returned to our sanitary sewer system.	Other (specify below)	Speak with Contractors about importance of any type of debris entering out Mainline. CCTV video assessment before and after project verifying lSewer mainline is clean and free of all debris and maintaining flow.	Speak with contractor in regard to proper procedure of Sewer main debris .Continued CCTV assessments of line before  and aftern to maintain a sewer main clean of debris. 	CCTV Video assessment of line before contractors begin any repaving job to make sure mainline is free of any debris. CCTV video assessment after job is completed as well. Making sure contractor did not create any issues in our sewer sanitary mainline.	01/19/2024 01:00	mergency call from Police Dept where we responded within 30 minutes. of call. First Vactor vacuum truck arrived within 15 minutes for containment at Sierra ave And Foothill and begun vacuuming. Second truck arrived to clear blockage by 17:45. Third Vactor truck arrived on site to continue vacuuming at corner of Sierra and Foothill. Spill was stopped and contained at Sierra and Foothill. Where all 18000 gallons were vacumned and returned to our sanitary sewer system.	Y	Continuing CCTV video assessment verifying all sewer main and laterals are in good order.	01/31/2024 16:30										N												Continuing CCTV video assessment verifying all sewer main and laterals are in good order.	
5S	5SSO10901	Active	City of Sacramento Utilities CS	Sacramento City	892363	1.1	Certified	Kevin Guerra	Superintendent		29-JAN-24	29-JAN-24	Monthly Category 3 Spill	1305 47th Ave. Sacramento, CA. 95831	12/26/2023 15:02	12/26/2023 15:30	12/26/2023 14:55				The spill appearance point was a manhole in the street in front of this address.	38.51064	-121.5099	Manhole			448	The spill left the manhole in the street and traveled both North and South to gutter pans. It then traveled both East and West to drain inlets entering the drainage system.	Y	The drainage system travels to a sump, and then to a canal before headed to the river. The spill entered the system through 3 different drain inlets, the spill was trapped in drainage main segments before it reached the sump station. The entire spill was recovered and returned to the sewer system.	448				448	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		The spill entered the drainage system at three different drain inlets, one was in front of the address for the appearance point. The spill was captured and removed from the drainage system and returned to the sewer from two different drainage manholes downstream of these inlets.	Y	38.51021	-121.51021	38.51062	-121.50959	38.50941	-121.50758	38.51025	-121.51287	12/26/2023 16:10	The spill was not active upon arrival. Measurements were taken of the spill area captured on the ground, and put into a volume equation to get the first estimated amount. Then the drainage system was tested and depths were taken at manholes until there was a negative test. These measurements along with the size and length of the piping were put into calculations to gather the estimates for what was removed from the drainage system and returned to the sewer system.	We interviewed witnesses and residents and there was no information they could provide for a start time. We made multiple attempts to contact the caller and did not receive a response, we used the only data we could confirm, the time it was reported as the start time.. Our responder documented the time the main segment was unplugged, we used this for the end time.	Collection System Maintenance Failure (specify below); Root Intrusion	This main was on two different work orders that were both late.	Gravity Mainline		Vitrified Clay		59	There was no impact from this spill, it was captured and returned to the system and no service was interrupted.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		The spill was not active upon arrival, the responder unplugged the main and then chased the spill to find the endpoints. Crews were called out to assist with cleaning the surface area and to clean and remove the spill from the drainage system. The spill was returned entirely to the sewer system.	Inspected Sewer Using CCTV to Determine Cause		The sewer main was cleaned the following day and inspected the day after the cleaning. After the cause was found by CCTV the work order to have the roots removed was completed. soon after		12/26/2023 19:00	The spill cause was found to be roots, there were two work orders in the system that were late. One was for Jet Cleaning the other for root removal. Both have been completed and should prevent future spills from occurring.		N/A	12/28/2023 11:16														N/A	Main segment was on two separate maintenance work orders that would have prevented the spill both were late.	Adjustment are not needed at this time.	N/A	 Main was inspected using CCTV, no repairs are necessary.	N/A	N/A	N/A	N/A	
5S	5SSO10987	Active	Lincoln CS	Lincoln City	892364	1.6	Certified	Aaron R Hookins	Environmental Services Manager	29-JAN-24	29-FEB-24	29-FEB-24	Category 1 Spill	1180 Secret Lake Loop	01/26/2024 11:00	01/26/2024 11:10	01/26/2024 11:00	01/26/2024 13:30	24-0484		Attached	38.86503	-121.27817	Lateral Clean Out (Public)		attached	5	attached	Y	Storm Drain DI with sump captured all of spill	5	0	attached	5	5	Drainage Conveyance System that discharges to surface water	n/a	Public lateral spill to gutter ending up at storm drain DI where it was captured by our technician.  Cleanup was completed for entire area.  Spill was estimated at 5 gallons	Y	38.86503	-121.27817							01/26/2024 11:30	Technician measured gutter pan and used assumptions on spill volume	Spill start time was identified by caller and spill end time was identified by technician	Debris-wipes/Non-disposables		Lower Lateral		Vitrified Clay		20	No impact.  It was 100 percent cleaned up	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Blockage was unblocked with vac truck cleanout hose and cleaned up immediately with vac truck.	Inspected Sewer Using CCTV to Determine Cause		resident was notified of excess use of flushable wipes.  Also notified that they are not flushable.	n/a	01/29/2024 10:00	excess flushable wipes	N			n/a	Wetland		n/a	none	Other (specify below)	none	n/a	0	N	N												
2	2SSO10184	Active	San Rafael SD CS	San Rafael Sanitation District	892368	1.3	Certified	Doris Toy	District Manager	29-JAN-24	04-MAR-24	04-MAR-24	Category 1 Spill	119 Center	01/25/2024 09:58	01/25/2024 10:13	01/25/2024 09:00	01/25/2024 11:31	24-0457		Spill came out of cleanout in front of 119 Center St.	37.978273834	-122.540403	Lateral Clean Out (Private)	The spill size initially reported to OES was 625 gallons and that was based on eyeball estimate.  Later we calculated by counting the upstream lateral connections and used our estimation worksheet.  18 residential units, 132 gallon average daily usage, running for 107 minutes between 6am and noon at 40% of daily usage in that time period.  This gave us a smaller number than originally reported.		282	Spill traveled east down Center St turned south on Eye and entered the San Rafael Creek underground at Harcourt	Y	The San Rafael Creek at Eye and Harcourt is underground in an 8 foot diameter culvert.  It travels underground for approximately 1 mile before entering a closed off drainage channel at Albert's Park.  From there it continues 1/2 mile to a storm water pump station before being discharged into San Rafael Canal.	0	282	It was not raining at the time but there was a constant flow going down the gutter pan.  The water observed entering the catch basin was clear.  	282	0	Drainage Conveyance System that discharges to surface water		Spill entered a storm drain catch basin at Eye and Harcourt which sits directly over the San Rafael Creek.  This creek is underground inside a 6'x8' RCB pipe.  It stays underground for approximately 1 mile before getting pumped out to San Rafael Canal	Y	37.969884	-122.520674							01/25/2024 10:47	Upstream lateral volume estimation.  There are 18 upstream laterals, total overflow time was 107 minutes between of hours of 09:00 and 10:47.  During this time period 40% of daily usage can be estimated.  The average daily usage  for a single family home in San Rafael is 132 gallons.  Please see attached worksheet.	The original spill reported to CalOES was 625 gallons that was based on eyeball estimate.  After it was called in we recalculated it with the upstream laterals estimation.	Debris-General	We found grit and rock in the gravity mainline 	Gravity Mainline		Other (specify below)	HDPE	5	No known impact.  Visual inspection of the creek downstream did not show evidence of a spill	N	Restored Flow		Once flow was restored out crews cleaned the street, curb and gutter down to storm drain catch basin.  The catch basin sits directly over the underground creek	Added Sewer to Preventive Maintenance Program		The pipe segment was recently rehabilitated by pipe bursting method.  Until we can determine where the rock originated this pipe will be added to our preventative maintenance cleaning schedule.  We will clean this pipe with the hydroflusher every 6 months.  	Cleanup and CCTV of the affected pipe completed 1-25-24 CCTV if upstream collection system completed 1-29-24 	01/25/2024 13:20	CCTV of upstream collection system	Y	We do not know where the grit and rock came from or how it got into our system	12/01/2028 08:35	San Rafael Creek	Stream/Creek		Creek	No impacts on aquatic life	Other (specify below)	No public access.  San Rafael Creek is contained underground	Marin County Environmental Health Services	0	N	N											We do not know where the grit and rock came from or how it got into our system	
1	1SSO11491	Active	Santa Rosa City CS	Santa Rosa City Utilities Dept	892423	1.2	Certified	Ron Marincic	Utility System Superintendent		29-JAN-24	29-JAN-24	Monthly Category 3 Spill	Wilgan Ct	01/29/2024 08:44	01/29/2024 08:57	01/29/2024 08:44				Photos scanned and attached.  One spill appearance point was MH SY015 JJ-28-11	38.40187	-122.71978	Manhole			435	Photos scanned and attached.  Area calculations of 11' X 11' and 23' of gutter.	Y	Photos scanned and attached.  Spill entered City storm drain system.	400				435	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Spread was approximately an 11' X 11' square area.	Y	38.40184	-122.71979							01/29/2024 09:13	Estimated gpm, duration of spill and used volumetric calculations.  Docs scanned and attached.	No other calls or witnesses to use in calculation of start time.  Crew broke blockage and calculated stop time and total gallons.  	Debris-Rags		Siphon		Other (specify below)	AC pipe.	46	Spill on paved surface and contained in storm drain.	N	Cleaned Up (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Line was hydro cleaned and televised(CCTV)  No pipe defect were found.  Only a build up of shop towels.	Inspected Sewer Using CCTV to Determine Cause		CCTV'd line.  No deficiencies.  		01/29/2024 11:00	Spill was caused by a build up of shop towels.  Line was CCTV'd with no deficiencies found.		None.	01/29/2024 11:00														N/A	N/A	N/A	N/.A	Inspected using CCTV.	N/A	N/A	Broke blockage.  Cleaned effected area, televised line.	None.	
9	9SSO10654	Active	City of Lemon Grove CS	Lemon Grove City	892477	1.6	Certified	Israel Murguia	Public Works Director		09-FEB-24	09-FEB-24	Monthly Category 3 Spill	1756 El Roy Drive	12/06/2023 18:21	12/06/2023 18:50	12/06/2023 18:00				System failure occurred in manhole located in backyard easement at 1749 Glencoe St.  Spill appearance point was private lateral cleanout for 1756 El Roy Dr. Cleanout located in backyard.	32.72358	-117.03097	Lateral Clean Out (Private)			50	Spill boundary was limited to the backyard of 1756 El Roy Dr.  Discharge percolated into the ground.	N						0	Unpaved Surface		Spill boundary was limited to the backyard of 1756 El Roy Dr.  Discharge percolated into the ground.	Y	32.72358	-117.03097							12/06/2023 19:30	Spill volume was estimated by determining boundary of discharge and estimating volume of water to cover the affected area.	Spill start time was provided by resident at 1756 El Roy.  Spill end time was reported by responding technician.  	Debris-General		Manhole		Concrete		77	Spill impact was limited to the unimproved backyard at 1756 El Roy Dr.	N	Contained All or Portion of Spill; Property Owner Notified; Restored Flow		Spill response team quickly determined failure location and spill location.  Technicians determined spill to be full contained within backyard and proceeded to relieve the blockage and restore flow.	Plan Rehabilitation or Replacement of Sewer		Spill response procedures updated to include inspection of nearby assets with known history of failure. Believe debris caught in manhole originated from spill event on 12-3-23		12/11/2023 16:00	Investigation consisted of CCTV inspection of manhole and associated sewer mains to determine failure location and system condition.  Manhole has internal liner failure that will need to be addressed through capital improvement. Debris may have caught in manhole originated from spill event on 12-3-23		Investigation complete	12/11/2023 16:00														N/A	No maintenance program modifications.  Subject manhole has been flagged for capitol improvement.	No adjustment made	Capitol improvement flagged for subject manhole.	Manhole and associated sewer mains have been inspected using CCTV.	Planned	No system modifications implemented.	Spill response procedures updated to include inspection of nearby assets with known history of failure.  Believe debris caught in manhole originated from spill event on 12-3-23	Investigation complete	
2	2SSO10170	Active	Richmond City CS	Richmond City	892501	1.3	Certified	Mary Phelps	Project Manager		30-JAN-24	30-JAN-24	Monthly Category 3 Spill	Dornan Tunnel	12/26/2023 10:40	12/26/2023 10:40	12/26/2023 10:05				where above ground forced main enters back under ground on eastside of tunnel (see photos)	37.92418	-122.38429	Force Main			550	See photos	Y	Sidewalk curb and gutter along E Richmond Ave.  Spill briefly entered stormwater conveyance that runs under the entrance to Buena Vista Ave  intersection before daylighting back onto E. Richmond Ave.  Spill was captured and returned to the Wastewater Treatment Plant at 601 Canal Blvd Richmond CA. (see photos).	550				550	Drainage Conveyance System; Street/Curb and Gutter (2 3)		Sidewalk curb and gutter along E Richmond Ave.  Spill briefly entered stormwater conveyance that runs under the entrance to Buena Vista Ave  intersection before daylighting back onto E. Richmond Ave.  Spill was captured and returned to the Wastewater Treatment Plant at 601 Canal Blvd Richmond CA. (see photos).										12/26/2023 11:35	Based on operator training, visual assessment, and pump run times.  Spill was completely recovered and returned to wastewater treatment plant.	From the report of the incident, to the visual assessment of discharge on the ground and visual rate of flow travel. 	Vandalism (specify below)		Force Main		Polyvinyl Chloride (PVC)		1	Spill reached sidewalk and gutter.  The storm conveyance was plugged down stream to contain spill.  Storm conveyance was vacuumed out and sanitized.  (see photos)	N	Returned All Spill to Sanitary Sewer System		The storm conveyance was plugged down stream to contain spill.  Storm conveyance was vacuumed out and sanitized.  (see photos)	Repaired Facilities or Replaced Defect		N/A		12/26/2023 12:39	It appeared that the connection was manually disconnected as a result of vandalism.  		Currently evaluating options for re-routing of above ground forced main through tunnel under ground. 	12/26/2023 12:39														N/A	CIP evaluation in process to re-route force main through tunnel.	N/A	CIP evaluation in process to re-route force main through tunnel back under ground. 	Yes	Currently evaluating options	N/A	N/A	Currently evaluating options for re-routing of above ground forced main through tunnel under ground. 	
2	2SSO10154	Active	Mill Valley City CS	Mill Valley City	892502	1.4	Certified	Mark Neumann	Operations Superintendent		30-JAN-24	30-JAN-24	Monthly Category 3 Spill	56 Monte Vista Ave	10/12/2023 07:16	10/12/2023 07:26	10/12/2023 07:38				Manhole DE11	37.90639	-122.5606	Manhole			50	From manhole, spill went across roadway. 	N						20	Paved Surface		From manhole, spill went across roadway. 	Y	37.90639	-122.5606							10/12/2023 07:38	Drop bucket method.	Drop bucket method.	Debris-General; Root Intrusion		Gravity Mainline		Vitrified Clay		40	Minimal impact - spill went across roadway / absorbed into land on either side of road.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		Cleaned up 20 gallons of spill across roadway. 	Other (specify below)	Cleared debris.	Cleared debris.		10/12/2023 07:38	Spill caused by root ball, gravel, and a sock in the line. Cleared and restored flow. 		N/A	10/12/2023 07:38														N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	
5F	5SSO11202	Active	City of Fresno CS	County of Fresno	892503	1.2	Certified	Arturo Alvarez	Wastewater Manager, Certified		29-FEB-24	29-FEB-24	Monthly Category 3 Spill	542 N. Fulton St.	01/06/2024 19:45	01/06/2024 20:16	01/06/2024 18:00				The two spill appearance points were private cleanouts for 542 N. Fulton St., located in the alleyway behind/east of the property.	36.7511	-119.79969	Lateral Clean Out (Private)	n/a	n/a	239	The spill area was contained to the alleyway behind/east of 542 N. Fulton Ave., and the gutter on E. Belmont Ave. between N. Fulton St. and N. Van Ness Ave.	N	n/a	0				239	Paved Surface; Street/Curb and Gutter (2 3)	n/a	The spill area was contained to the paved alleyway behind/east of 542 N. Fulton Ave., and the gutter along E. Belmont Ave. between N. Fulton St. and N. Van Ness Ave.	Y	36.75141	-119.79965	36.7505	-119.79986	36.7505	-119.79942	36.7505	-119.79965	01/06/2024 21:59	The estimated spill volume was calculated based on visually estimated gallons/minute from the private lateral cleanout that was actively overflowing during investigation: est. 1 gallon/minute, 239 minutes.	The estimated spill start time is based on statements from the plumber working on-site. The spill end time is based on the time the mainline blockage was broken.	Fats, Oil and Grease (FOG)	n/a	Gravity Mainline	n/a	Vitrified Clay	n/a	49	There was neither debris nor staining visible in the affected area during the follow-up inspection on 01-08-2024; there is no known long-term impact due to this spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System	n/a	Upon arrival and in speaking with the plumber on-site, the responder was able to determine that the spill was contained to the paved alleyway, and the street/curb & gutter at the southern end of the alleyway, on E. Belmont Ave. Upstream and downstream manholes were investigated, none of which showed signs of having overflowed as part of this spill event. The mainline experiencing the blockage was cleaned, the spill was returned to the system, and the affected spill area was cleaned.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer	n/a	Affected mainline 2455-07-2554-12 was referred to Preventative Maintenance to be added to the High Frequency Cleaning schedule.		01/06/2024 23:50	Upon arrival, the responder found MH 2455-07, upstream of the service request location, holding; the responder called for a Combo to come break the stoppage. None of the affected MHs showed signs of having overflowed as part of this spill event. Two private lateral cleanouts servicing 542 N. Fulton St. were affected: Cleanout #1 showed signs of having overflowed but was not overflowing during investigation, and Cleanout #2 was overflowing at a visually estimated 1 GPM during investigation. After the blockage was broken at approximately 35' upstream of MH 2554-12, Cleanout #2 was confirmed to have ceased overflowing; responder witnessed large amount of grease flow through once the mainline resumed normal operation. The affected spill area was cleaned, and the spill was returned to the system. Follow-up CCTV inspection found an apparent sag in the mainline at roughly the same location as the blockage.		n/a	01/08/2024 16:30														n/a	(See 20.b.)	Affected mainline 2455-07-2554-12 was added to the High Frequency Cleaning 540-day schedule.	MH 2554-12 referred to Corrective Maintenance for channel shaping.	01-08-2024: CCTV inspection of affected mainline 2455-07-2554-12	n/a	(See 20.d.1.)	n/a	n/a	
5F	5SSO11202	Historical	City of Fresno CS	County of Fresno	892503	1.2	Certified	Arturo Alvarez	Wastewater Manager, Certified		29-FEB-24	29-FEB-24	Monthly Category 3 Spill	542 N. Fulton St.	01/06/2024 19:45	01/06/2024 20:16	01/06/2024 18:00				The two spill appearance points were private cleanouts for 542 N. Fulton St., located in the alleyway behind/east of the property.	36.7511	-119.79969	Lateral Clean Out (Private)	n/a	n/a	239	The spill area was contained to the alleyway behind/east of 542 N. Fulton Ave., and the gutter on E. Belmont Ave. between N. Fulton St. and N. Van Ness Ave.	N	n/a	0				239	Paved Surface; Street/Curb and Gutter (2 3)	n/a	The spill area was contained to the paved alleyway behind/east of 542 N. Fulton Ave., and the gutter along E. Belmont Ave. between N. Fulton St. and N. Van Ness Ave.	Y	36.75141	-119.79965	36.7505	-119.79986	36.7505	-119.79942	36.7505	-119.79965	01/06/2024 21:59	The estimated spill volume was calculated based on visually estimated gallons/minute from the private lateral cleanout that was actively overflowing during investigation: est. 1 gallon/minute, 239 minutes.	The estimated spill start time is based on statements from the plumber working on-site. The spill end time is based on the time the mainline blockage was broken.	Fats, Oil and Grease (FOG)	n/a	Gravity Mainline	n/a	Vitrified Clay	n/a	49	There was neither debris nor staining visible in the affected area during the follow-up inspection on 01-08-2024; there is no known long-term impact due to this spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System	n/a	Upon arrival and in speaking with the plumber on-site, the responder was able to determine that the spill was contained to the paved alleyway, and the street/curb & gutter at the southern end of the alleyway, on E. Belmont Ave. Upstream and downstream manholes were investigated, none of which showed signs of having overflowed as part of this spill event. The mainline experiencing the blockage was cleaned, the spill was returned to the system, and the affected spill area was cleaned.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer	n/a	Affected mainline 2455-07-2554-12 was referred to Preventative Maintenance to be added to the High Frequency Cleaning schedule.		01/06/2024 23:50	Upon arrival, the responder found MH 2455-07, upstream of the service request location, holding; the responder called for a Combo to come break the stoppage. None of the affected MHs showed signs of having overflowed as part of this spill event. Two private lateral cleanouts servicing 542 N. Fulton St. were affected: Cleanout #1 showed signs of having overflowed but was not overflowing during investigation, and Cleanout #2 was overflowing at a visually estimated 1 GPM during investigation. After the blockage was broken at approximately 35' upstream of MH 2554-12, Cleanout #2 was confirmed to have ceased overflowing; responder witnessed large amount of grease flow through once the mainline resumed normal operation. The affected spill area was cleaned, and the spill was returned to the system. Follow-up CCTV inspection found an apparent sag in the mainline at roughly the same location as the blockage.		n/a	01/08/2024 16:30														n/a	(See 20.b.)	Affected mainline 2455-07-2554-12 was added to the High Frequency Cleaning 540-day schedule.	MH 2554-12 referred to Corrective Maintenance for channel shaping.	01-08-2024: CCTV inspection of affected mainline 2455-07-2554-12	n/a	(See 20.d.1.)	n/a	n/a	
2	2SSO10113	Active	Pittsburg City CS	Pittsburg City	892291	2.2	Certified	Pedro Ramos	Public works Supervisor 	24-JAN-24	30-JAN-24	30-JAN-24	Category 2 Spill	500 Loveridge Cir	01/23/2024 09:31	01/23/2024 10:03	01/23/2024 09:31	01/23/2024 11:29	24-0400		The spill was flowing out of the manhole into a drainage conveyance system 3.5 feet away from manhole.	38.00691	-121.87327	Manhole			2100	The spill was flowing out of the manhole and through a drainage system approx. 360 feet.	Y	The drainage conveyance system is located 3.5 feet East of the manhole #4352.  	2100	0			2100	Drainage Conveyance System; Paved Surface		The spill was flowing out of manhole #4352 into a drainage conveyance located 3.5 feet away from manhole and flow approximately 360 feet..	Y	38.00691	-121.87327							01/23/2024 10:13	The volume was estimated using the duration of flow method.	The duration of flow method was used to calculate the start and end time.	Debris-Rags; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		44	Contact paved surface and entered storm drain conveyance system approximately 360 feet.   	N	Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Upon arrival we noticed manhole #4352 overflowing into storm drain. We set up vacuum tube to contain spill from flowing in storm drain. The second truck went down stream and unplug the blockage. We started performing a wash down and rodding and vacuuming the storm drain. once we cleaned all the storm drains, we tested the water for ammonia to make sure there was no more sewer in the drain.   	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Adjusted the cleaning scheduled by adding to chronic list that will be cleaned every 3 months. 	This segment of sewer main will be add to chronic cleaning list every 3 months.	01/23/2024 14:00	CCTV'd the sewer pipe and discovered heavy grease (FOG), and rags in the main. 	N		01/26/2024 15:00										N													
3	3SSO10265	Active	El Estero CS	Santa Barbara City PWD	892809	1.4	Certified	Amanda Flesse	Wastewater System Manager	30-JAN-24	06-FEB-24	06-FEB-24	Category 1 Spill	1819 Santa Barbara St. 	01/28/2024 11:21	01/28/2024 11:32	01/28/2024 08:45	01/30/2024 10:43	24-0542		Protruding rehabilitated private lateral for 1816 Santa Barbara St. caused flow obstruction in the sewer system, which led to an SSO.  SSO from a private clean-out located at 1819 Santa Barbara St.	34.43142	-119.71067	Lateral Clean Out (Private)			1195	SSO discharge from a private clean-out at 1819 Santa Barbara St. The spill went down the driveway and into the backyard. Most of the spill saturated the grass and dirt areas under a deck. Part of the spill trickled under the fence to 128 E. Pedregosa's backyard and into a concrete drain channel.	Y	The concrete drain channel is located at 128 E. Pedregosa St. between 1819 Santa Barbara St and 128 E. Pedregosa St. The drain system is in the backyard of the properties. 	0	70	The spill entered the drain channel at 128 E. Pedregosa St. after it trickled under the fence between the 1819 Santa Barbara St. property line and 128 E. Pedregosa. 	70	0	Drainage Conveyance System; Other (specify below); Paved Surface	Backyard of 1819 Santa Barbara Street. 	Backyard of 1819 Santa Barbara Street. Most of the spill saturated into the  lawn area.	Y	34.43141	-119.71075							01/28/2024 12:44	Staff used common visual shapes and dimensions, video of the spill taken by the first responder, and eyewitnesses reporting the spill to establish spill volume and timeframes.  The Orange County Estimation Guide, CWEA SSO training, inground SSO simulator, and periotic SSO training drills are references that staff employ when calculating spill volume discharge and spill volume discharge recovered.  	Staff used common visual shapes and dimensions, video of the spill taken by the first responder, and eyewitnesses reporting the spill to establish spill volume and timeframes.  The Orange County Estimation Guide, CWEA SSO training, inground SSO simulator, and periotic SSO training drills are references that staff employ when calculating spill volume discharge and spill volume discharge recovered.	Other (specify below)	Protruding rehabilitated private lateral for 1816 Santa Barbara St. caused flow obstruction in the sewer system, which led to an SSO.  SSO from a private clean-out located at 1819 Santa Barbara St.	Gravity Mainline		Other (specify below)	CIPP	7	SSO discharge from a private clean-out at 1819 Santa Barbara St. The spill went down the driveway and into the backyard. Most of the spill saturated the grass and dirt areas under a deck. Part of the spill trickled under the fence to 128 E. Pedregosa's backyard and into a concrete drain channel.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	 	Sandbags were set by the first responder by the discharge point to divert the SSO from the house and miscellaneous items located near the home. The responding team set sandbags at the drain channel located at 128 E. Pedregosa St. to keep SSO from traveling downstream. The responding team tracked the SSO to the endpoint in the drain channel. The WWC team collected the solids from the spill. The driveway and patio were washed down and brushed. Washed-down water saturated the landscape in the backyard. No sanitizer was used per customer request due to pets.  The concrete drain channel is located at 128 E. Pedregosa St. between 1819 Santa Barbara St and 128 E. Pedregosa St. The drain system is in the backyard of the properties. The discharge volume could not be recovered due to SSO saturating into the concrete channel. 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Point repair to replace private wye connection.	Point repair to replace private wye connection.	N/A	01/28/2024 21:00	Protruding rehabilitated private lateral for 1816 Santa Barbara St. caused flow obstruction in the sewer system, which led to an SSO.  SSO from a private clean-out located at 1819 Santa Barbara St.	N			Mission Creek Watershed	Other (specify below)	Mission Creek Watershed	Mission Creek Watershed	No impact to aquatic life	Other (specify below); Temporary Restricted Use	The concrete drain channel is located at 128 E. Pedregosa St. between 1819 Santa Barbara St and 128 E. Pedregosa St. The drain system is in the backyard of the properties. City staff asked the property owner to keep out of the SSO area. 	City of Santa Barbara 	3	N	N	Samples were not collected due to SSO saturating into the concrete drain channel.  	N/A										
1	1SSO10086	Active	Yreka City CS	Yreka City	892816	1.3	Certified	Matthew Bray	Director		01-FEB-24	01-FEB-24	Monthly Category 3 Spill	Butte Street Manhole	05/04/2023 10:33	05/04/2023 10:36	05/04/2023 10:25				Spill originated out of manhole on Butte Street west of South Oregon Street	41.73018	-122.64018	Manhole			125	spill exited manhole the traveled across asphalt to concrete gutter then entered a drop inlet to storm sewer	Y	spill entered drop inlet and traveled down storm drain pipe then was fully captured at access manhole in sidewalk.	125				125	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		spill was sucked out of downstream storm manhole.  A combination vacuum was set at first dry storm access manhole downstream and sucked up the entirety of the spill plus 500 gallons of wash water to clean the storm drain pipe. 		41.73002	-122.63937							05/04/2023 11:45	The duration and flow rate photo caparison reference a and 5 gallon bucket methods were utilized to estimate volume.	spill end time was when the blockage in the mainline was cleared and flow from access point stopped.  spill start time was estimated from deducting a reasonable amount of time from the call.  	Debris-General; Root Intrusion		Gravity Mainline		Vitrified Clay		60	None. 100 percent captured and area was washed down and sanitzed	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Combination vacuum truck was deployed to suck up spill at first dry down stream access in storm drain system.  Jetter truck was deployed to remove blockage in sanitary sewer system from downstream manhole.  After spill was stopped the area was washed and and sanitized. 500 gallons of wash water was utilized from water truck to clean storm drain pipe and was sucked up at downstream storm manhole with combination truck.	Adjusted Schedule/Method of Preventive Maintenance	added sanitary sewer segment on list for future root control project	This line segment will be added to list for Root treatment project approved in budget for this cycle.		05/04/2023 11:45	Blockage was cleared by jetter truck and relived. Roots and debris were captured in basket placed in flowline of manhole prior to jetting.  Butte street has several privately owned street trees adjacent to sewer line. 		continue monitoring for overflows 	05/05/2023 15:30														no enforcement action	we will prioritize this line for future improvement projects and increase maintenance activities.	Prioritize this line for future improvement projects and increase maintenance activities.	not in current project	removed roots with sewer jetter	not scheduled in project at this time	sewer jetted again on 1-4-24 and documented job in Cartegraph our Asset Management Program 	no modification to response activites	continue monitoring for overflows 	
5S	5SSO10935	Active	Dry Creek CS	Roseville City	892853	1.3	Certified	Dan Pruden	Superintendent		30-JAN-24	30-JAN-24	Monthly Category 3 Spill	307 Sutter Ave	12/27/2023 07:22	12/27/2023 07:37	12/26/2023 18:45				Private Cleanout	38.74899	-121.27925	Lateral Clean Out (Private)			53	See attached narrative.pdf	N						0	Building or Structure; Paved Surface; Unpaved Surface		See attachment narrative.pdf										12/27/2023 07:35	See attachment narrative.pdf	See attachment narrative.pdf	Pipe Structural Problem/Failure - Installation		Gravity Mainline		Vitrified Clay		55	See attachment narrative.pdf	N	Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow		See attachment narrative.pdf	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		See attachment narrative.pdf		12/27/2023 13:40	See attachment narrative.pdf		See attachment narrative.pdf	02/05/2024 15:30														N/A	See attachment narrative.pdf	See attachment narrative.pdf	See attachment narrative.pdf	See attachment narrative.pdf	N/A	See attachment narrative.pdf	See attachment narrative.pdf	See attachment narrative.pdf	
2	2SSO10162	Active	Novato And Ignacio CS	Novato Sanitary District	892944	1.2	Certified	Jeff Andress	Collection Systems Superintendent	30-JAN-24	12-FEB-24	12-FEB-24	Category 1 Spill	23 Cowbarn Ln. Novato, CA 94947	01/27/2024 11:30	01/27/2024 11:58	01/27/2024 07:53	01/27/2024 14:00	24-0502		spill came out of private cleanout of apartment complex. 	38.07827	-122.55388	Lateral Clean Out (Private)			1455	spill occurred on the ground around the private lateral and over to the storm drain inlet	Y	out of private cleanout onto the ground then flowed 5 feet to storm drain inlet, then down the storm drain 51 feet to the creek.	0	0	where the storm drain terminates into the creek bank. 	1400	55	Surface Water; Unpaved Surface		spill came out of a private cleanout of the apartment building. 	Y	38.07826	-122.5539							01/27/2024 12:44	: It was determined that the spill originated at approximately 7:53am after speaking with the Cowbarn apartment complex�s plumber who was on scene at 8:23am. It was estimated to be discharging at an average rate of 5gpm (determined from volume estimating table in the District�s Overflow Emergency Response Plan) for a total time of 291 minutes until broken up at 12:44 am, for a total of 1,455 gallons.	: It was determined that the spill originated at approximately 7:53am after speaking with the Cowbarn apartment complex�s plumber who was on scene at 8:23am.	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		50	walked along the creek banks looking for any signs of debris. none observed. further down turns into concrete drainage, no signs of wildlife impacts.  There was rain the previous days, so there was flow in the creek. normally this is a dry creek/drainage.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Initially the crew used sand bags to block the end of the storm drain along the creek bank. sandbags were also used to contain the spill to the area around apartment building where the spill occurred, was cleaned up of all debris using shovels, rakes, and brooms. standing sewer in the area was returned to the system. 	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause	door hanger packets are in the process of being put together, then will be distributed at the apartments.	This line was on a 6 month cleaning frequency due the heavy use from apartments. After having the line surveyed with CCTV equipment, there was still grease stuck in the line downstream of the lateral connection. The flusher was used to remove the remainder of grease. this has been adjusted in the CMMS program to a 3 month cleaning frequency and have a follow up CCTV survey to determine if any further adjustments are needed. 	as described above, cleaning frequency has been adjusted from a 6 month to a 3 month. and follow up cctv work will also be completed. 	01/27/2024 15:30	This line was on a 6 month cleaning frequency due the heavy use from apartments. After having the line surveyed with CCTV equipment, there was still grease stuck in the line downstream of the lateral connection. The flusher was used to remove the remainder of grease. this has been adjusted in the CMMS program to a 3 month cleaning frequency and have a follow up CCTV survey to determine if any further adjustments are needed. 	N			unknow drainage/creek, tributary to Novato Creek. 	Slough; Stream/Creek		Novato creek runs very slow and is tidal influenced. 	none observed	Restricted Public Access		Marin County Environmental Health Department. 	0	N	N												
2	2SSO10170	Active	Richmond City CS	Richmond City	892947	1.1	Certified	Mary Phelps	Project Manager		30-JAN-24	30-JAN-24	Monthly Category 3 Spill	12 Chanslor Court, Richmond, CA	12/14/2023 10:54	12/14/2023 11:12	12/14/2023 10:54				SSO discharged from Manhole in private HOA to street curb and gutter. Did not enter storm drain collection system.	37.93158	-122.36962	Manhole			168	Spill onto paved street curb and gutter	N						168	Paved Surface; Street/Curb and Gutter (2 3)		Residential Street curb and gutter area.										12/14/2023 11:50	Operator training method of rate of flow at time of discharge, area of wetness in gutter and paved street (LxWxH).	Start time based on Residential notification. End time based on time flow stopped discharging from Manhole.	Debris-General		Gravity Mainline		Vitrified Clay		50	No impact. Area completely contained and returned to POTW.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Spill completely contained and returned. Area sanitized and cleaned.	Added Sewer to Preventive Maintenance Program		Added line segment to Hot Spot list for increased cleaning/maintenance.		12/14/2023 13:27	Met with operations crew to discuss  after action  report. Discussed adding line segment to Hot Spot List and increased cleaning efforts.		 Will have Environmental Compliance Group conduct Public Outreach,  Toilet is not a Trash Can .	12/18/2023 08:30														N/A.	N/A	Increased cleaning.	N/A	N/A	N/A	Line segment added to City's official  Hot Spot List .	No changes to response activities.	 Will have Environmental Compliance Group conduct Public Outreach,  Toilet is not a Trash Can .	
4	4SSO10383	Active	Downey City CS	Downey City	892949	1.3	Certified	Dan Mueller	Deputy Director of PW/Utilities Mgr		30-JAN-24	30-JAN-24	Monthly Category 3 Spill	Sewer manhole on paved street	12/16/2023 12:05	12/16/2023 12:14	12/16/2023 12:00				Downey sewer manhole N5247 at northwest corner of 5th St. and Western Ave.	33.945288	-118.133186	Manhole	NA	NA	180	Extent of spill was from the sewer manhole identified above along street gutter and adjacent paved street to the storm catch basin approximately 30 feet away.	Y	Limited amount of the spill totally approximately 10 gallons entered the storm catch basin which absorbed onto the leaves and other debris within the catch basin. All of the spill entering the catch basin with the debris was recovered.	10				180	Drainage Conveyance System; Paved Surface	NA	Limited amount of the spill totally approximately 10 gallons entered into the storm catch basin approximately 30 feet away from the sewer manhole which absorbed onto the leaves and other debris within the catch basin. All of the spill entering the catch basin with the debris was recovered.	Y	33.945342	-118.133117							12/16/2023 12:36	The duration of the flow was determined from the start time and end time of the spill. The flow rate was then determined through the use of the San Diego manhole overflow picture chart. Once duration and flow rater were determined the subsequent volume of flow was calculated using these two factors which was also compared to the volume of spill recovered.	This was determined by documenting when calls were first received by the City and the information obtained by the person calling the City. Further documentation of times of arrival onsite and spill end time were also recorded.	Fats, Oil and Grease (FOG)	NA	Manhole	NA	Vitrified Clay	NA	60	Very limited impact to approximately 30 feet of curb, gutter, adjacent pavement, and existing leaves and other debris within the storm catch basin. The total volume of spill and catch basin debris were recovered and impacted areas washed and sanitized.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System	NA	Spill was immediately contained upon arrival using sandbags and other BMPs.  A sewer jetter was used from the downstream manhole (N5249) to flush upstream and clear the blockage and restore flow.  At the same time a combination vacuum truck was used to vacuum the surcharged manhole and recover any remaining liquid from the street, gutter, and storm catch basin.  All affected areas were subsequently cleaned and sanitized.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause	NA	Video inspection of the sewer line in question was conducted and confirmed that there was some grease build up which was subsequently cleaned. The frequency of cleaning of this sewer line was increased to annually within the sewer preventative maintenance program to help eliminate future occurrences.		12/16/2023 12:36	Video inspection of the sewer line in question was conducted and confirmed that there was some grease build up which was subsequently cleaned. The frequency of cleaning of this sewer line was increased to annually within the sewer preventative maintenance program to help eliminate future occurrences.		NA - complete	12/16/2023 12:36														NA	Increased frequency of cleaning the sewer line in question to annually.	The frequency of cleaning of this sewer line was increased to annually within the sewer preventative maintenance program to help eliminate future occurrences.	NA - none needed	Video inspection of the sewer line in question was conducted and confirmed that there were no physical defects to currently address. 	NA - none needed	The frequency of cleaning of this sewer line was increased to annually within the sewer preventative maintenance program to help eliminate future occurrences.	NA - response was quick and went smoothly 	NA - complete	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	892954	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2		05-FEB-24	05-FEB-24	Monthly Category 3 Spill	7728 Skyline Blvd., Oakland Ca	01/24/2024 15:30	01/24/2024 16:00	01/24/2024 14:12				Sewage was seeping out of the ground onto unpaved surface and soaking into the soil on a hillside.	37.83852	-122.19201	Gravity Mainline			799	Sewage was seeping out of the ground onto unpaved surface and soaking into the soil on a hillside.	N						0	Unpaved Surface		Sewage was seeping out of the ground onto unpaved surface and soaking into the soil on a hillside.										01/26/2024 14:15	Calculated volumes: 60'L x 4.75'W x 2'D x 7.48-Gal x .1875 = 799 Gallons Average Width: 7' + 5' + 4' + 3' =19' / 4 = 4.75' Average Depth: 4' + 2' + 1' = 7' / 3 = 2'	Start time was assumed by reporting party. The end time was assumed by the responding party when they restored the flow. 	Other (specify below)	Tree fell down on the hillside and damaged the mainline on Easement.	Gravity Mainline		Vitrified Clay		12	Sewage was seeping out of the ground onto unpaved surface and soaking into the soil on a hillside.	N	Other (specify below); Property Owner Notified; Restored Flow	Dug and repaired the mainline.	Fallen tree on a hillside compromised the Mainline on an Easement. Staff dug and repaired the Mainline.	Added Sewer to Preventive Maintenance Program		Added Mainline to 6-Month High Frequency program, W.O. # 1498077		01/27/2024 14:30	Fallen tree on a hillside compromised the Mainline on an Easement. Staff dug and repaired the Mainline.		CCTV inspection W.O # 1497329 was created to verify other parts of the Mainline have not been compromised by the fallen tree.	02/09/2024 15:30														N/A	N/A	Added Mainline to 6-Month High Frequency program, W.O. # 1498077	N/A	Gravity Mainline was repaired on 1/27/24, construction W.O.#1496589	N/A	Gravity Mainline was repaired on 1/27/24, construction W.O.#1496589 Added Mainline to 6-Month High Frequency program, W.O. # 1498077	Gravity Mainline was repaired on 1/27/24, construction W.O.#1496589 Added Mainline to 6-Month High Frequency program, W.O. # 1498077	CCTV inspection W.O # 1497329 was created to verify other parts of the Mainline have not been compromised by the fallen tree.	
2	2SSO10100	Active	Calera Crk Wtr Recycling Plant CS	City of Pacifica	893007	1.3	Certified	Eddie Pastrano	Collection System Manager		31-JAN-24	31-JAN-24	Monthly Category 3 Spill	Maitland & San Marlo	12/18/2023 19:28	12/18/2023 19:40	12/18/2023 19:28				Picture taken in the dark not clear.	37.61055	-122.4956	Manhole			60	Spill ran into gutter and asphalt only.	N						60	Paved Surface; Street/Curb and Gutter (2 3)		Spill only reached gutter and asphalt.	Y	37.61037	-122.49509							12/18/2023 19:40	Estimation was determined by the San Diego flow chart. Removed any debris form the gutter and pavement. Dispatched received the call at 7:28 pm and called our operator to respond. Our operator arrived at 7:40 pm and turned our pumps to the hand position to restore flow. After flow was back to normal operator positioned the pumps back to auto. Flow estimation operator arrived 12 minutes from dispatch call. It was determined that the rate of flow was 5 GPM. Rate X time = GPM.  12min.X 5gpm= 60 gallons total.	Fire department was entering Rockaway pump station and noticed a manhole leaching and called dispatch immediately. time was 7:28 pm. Operator arrived at 7:40 pm and started the pumps on hand and restored flow at 7:40pm.	Damage by Others Not Related to Collection System Construction/Maintenance	Contractor accidently disconnected the 4 to 20 mili amp level probe controller. 	Pump Station - Controls	Contractor accidently disconnected the 4 to 20 mili amp level probe controller.	Vitrified Clay		23	Spill did not impact any water ways or anything around the station.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Crew arrived to vacuum up spill and debris along with any other water in the area with the Vac con truck. Water and vacuum were used for clean up.	Other (specify below)	Contractor reconnected the 4 to 20 mil amp level probe controller. The SCADA alarm system is being implemented.	Corrective actions are to be on site during and after any contractor work.		12/18/2023 22:00	After a thorough investigation it was found that the contractor disconnected the 4 to 20 mil amp probe that sends a high level reading alarm to our current dialer. It did not respond. Operator arrive at station and placed the pumps on hand until flows were restored to normal levels.		N/A	12/19/2023 15:20														N/A	Did a full inspection of all electrical components at point of failure.	N/A	Operation and Maintenance scheduled to address sewer assets during the FY 2024-2025. 	Inspected the micro mat 4 to 20 mil amp level probe controller.	Station is scheduled to have upgrades on FY 2024-2025.	N/A	N/A	N/A	
4	4SSO18098	Active	Rancho Palos Verdes - Central CS	Rancho Palos Verdes City	893085	1.2	Certified	Juan Hernandez	PW Superintendent		31-JAN-24	31-JAN-24	Monthly Category 3 Spill	 Narcissa Drive	01/28/2024 10:40	01/28/2024 11:40	01/28/2024 10:00				The shared lateral collection 2-inch line was pulled apart at the coupling due to land movement. 	33.74423	-118.37748	Combined Sewer Drain Inlet. (Combined Collection System Only)			100	Example of line separation due to movement.	N						100	Paved Surface		33�44'38.5 N 118�22'37.4 W	Y	33.74442	-118.3771							01/28/2024 12:00	Calculations based on collected material, soil, and wastewater. DIschaeg was not continued, only active when pumps were running, and pumps were not active after the initial report. 	Based on the volume collected and observed on-site. The spill was first observed at 10am. However, no spillage occurred after waRDS. 	Natural Disaster (specify below); Other (specify below); Pipe Structural Problem/Failure - Installation	Land in this area is constantly moving and is exacerbated by recent rain storms.	Upper Lateral		Galvanized Steel		20	A minor impact was observed. , only small amounts of trace water were observed on site	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System	Had contractor sanitize ,wash and collect waste water that effected road. In addition , removed top layer of soil that was adjected 	The spill was contained using sandbags before it could reach storm catch basins. Then, the contractor sanitized, washed, and collected wastewater that affected the road. In addition, the top layer of soil was removed. Included sandbags	Repaired Facilities or Replaced Defect		Made repairs. Anticipate replacing galvanize liens with flexable material to compensate for land movement. 		01/28/2024 17:00	Found line separating due to land movement.		Found line separating due to land movement.	01/30/2024 12:00														NA	Anticipate replacing portions of the system with flexible materials. 	will patrol the area more frequently for signs of movement.	Expected improvements project to take place 24/25	Three feet of 2-inch galvanized pipe.  	Expected improvements project to take place 24/25	NA	Spillage contaminant removal via power wash and vacuum. Additionally removed contaminated soil using shovels and plastic containment bags.  	Found line separating due to land movement.	
7	7SSO10519	Active	Imperial City CS	Imperial City	893218	1.1	Certified	Christopher Kemp	Chief Wastewater Operator		31-JAN-24	31-JAN-24	Monthly Category 3 Spill	East Aten Road & Legakes Avenue	01/30/2024 20:40	01/30/2024 20:47	01/30/2024 20:15				Sewer force main developed a hole, about 3/4 an inch diameter, on the top side of a cleanout elbow.  Luckily, City police noticed the leak almost immediately and notified staff who promptly shut the station pumps off, avoiding further spillage.	32.82543	-115.54461	Force Main			200	Cleanout was located under a manhole in the center of East Aten Road.  	N						200	Paved Surface; Street/Curb and Gutter (2 3)		Spill was on a paved surface and was recovered with vacuum truck.	Y	32.82543	-115.54461							01/30/2024 20:47	Pump gallons per minute, at full head, with consideration of approximate hole diameter and estimated time of leak.   	Pump run time estimations from similar time and dates, coupled with pumping rates and leak diameter.	Other (specify below)	Pipe degradation due to corrosive nature of sewer	Force Main		Ductile Iron		19	Additional cost to City due to the hiring of emergency contractors, materials used, and overtime pay. 	N	Cleaned Up (specify below); Other (specify below); Restored Flow	Spill was removed with vacuum truck and dumped at the wastewater treatment facility.  Pavement was sprayed down and disinfected with chlorinated water. 	Spill was immediately stopped on operator arrival by turning pumps off.  Sand bags were placed in gutters for containment.  Vacuum truck removed spill and area was disinfected. 	Other (specify below)	Routine inspection	Inspection of similar sewer cleanouts located on the same force main.  Replace or remove damaged sections as necessary. 		01/31/2024 04:00	Ductile elbow developed small hole.		Continue identification of possible collection system weaknesses, and repair/replace before spills occur.	01/31/2024 13:51														N/A	Replacement of ductile piping material and fittings with more proven and reliable parts is ongoing.	Continue identification of potential force main weaknesses.	Issue was resolved during emergency response.	Ductile fitting and elbow were removed and is not necessary for line maintenance.  No replacement necessary.	Ductile parts replaced with more proven and reliable materials.	Modification completed during emergency repair.	Spill response was immediate and proper.  No modifications required.	Continue identification of possible collection system weaknesses, and repair/replace before spills occur.	
1	1SSO10031	Active	Fortuna City CS	Fortuna City	893221	1.2	Certified	Jessie Suelzle	Utility Supervisor	01-FEB-24	14-FEB-24	14-FEB-24	Category 1 Spill	Fortuna Fire Hall	01/31/2024 12:22	01/31/2024 12:28	01/31/2024 12:20	02/01/2024 11:06	24-0593		Manhole at fire station. 320 south Fortuna BLVD	40.58912	-124.14847	Gravity Mainline; Manhole			23500	Spilled into a retention basin. 	Y	Entered in an overflow drain for the retention basin.	13000	10000	Discharge point was the retention basin overflow drain.	10000	13000	Drainage Conveyance System that discharges to surface water; Paved Surface; Unpaved Surface		Spilled from manhole at the fire department. 	Y	40.58912	-124.14874							01/31/2024 19:00	Volume pictures out of our SSO response packet. 	We had heavy rains that day and where continuously monitoring the over flow points, we got a very accurate start and stop time.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Gravity Mainline; Manhole		Concrete; Vitrified Clay		50	Spill ran into a collection basin and then overflowed into Rohner creek.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Returned Portion of Spill to Sanitary Sewer System		We retrieved 13,000 gallons from the retention basin. 	Other (specify below)	No corrective action taken.	N/A	N/A	02/01/2024 12:00	Heavy rain caused I and I.	N			Rohner creek and Eel river.	River; Stream/Creek		Creek and river.	N/A	Other (specify below)	Spill was on private city owned property.	N/A	0	N	Y	fire station manhole, Rohner creek	BOD- Fire hall 24 MG/L      Rohner creek <1 MG/L  Ammonia samples have not made it back by due date. Will update when received. 										
1	1SSO10086	Active	Yreka City CS	Yreka City	893239	1.1	Certified	Matthew Bray	Director		01-FEB-24	01-FEB-24	Monthly Category 3 Spill	Discovery and Terrace	09/05/2023 08:09	09/05/2023 08:27	09/05/2023 07:59				Spill exited manhole at the intersection of Discovery and Terrace Streets	41.73982	-122.64555	Manhole			884	Spill exited manhole was spread by traffic on asphalt roadway, traveled to asphalt gutter,  turned down gravel alley where flow terminated.	N						500	Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		Spill exited manhole was spread by traffic on asphalt roadway, traveled to asphalt gutter,  turned down gravel alley where flow terminated.		41.74004	-122.6452							02/01/2024 08:35	Ponded Sewage calculation and manhole photo comparison were used to estimate volume.  Ponded sewage calculation was 884 Gallons and Photo comparison was 720 gallons.  884 was used for report.  Spill recovery was estimated by filling a 5 yard (1000 gallon) Vacuum truck debris body with approximately 50% wash water and 50% spill recovery. 	Start time was estimated by subtracting a reasonable amount of time from when our agency was notified.  Spill end time was when the mainline was unplugged and flow stopped exiting manhole.	Debris-General; Root Intrusion		Gravity Mainline		Vitrified Clay		50	minimal a small amount of the spill that absorbed into gravel ally was not recovered	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		vacuum truck was deployed to suck up sewage at termination point.  Jetter truck deployed to restore flow of gravity mainline.  absorbent waddles were set to protect drainage inlets and contain spill at termination point.   Spill was carefully washed from road surface with water truck and was sucked up and returned to collection system by vacuum truck.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Increased maintenance schedule and will prioritize for future Improvement project.		09/05/2023 10:45	Mainline segment has multiple offset joints and root intrusion which allows debris to build up over time if not maintained.		Continue to monitor for SSO's	09/06/2023 15:30														No regulatory enforcement 	Increased Jetting schedule, will apply root treatment in future project.	Yes	Not in Current Project	Restored flow with Jetter truck.	Not in Current Project	Work order assigned and completed in Cartegraph our asset management program on 1-23-23	None	Continue to monitor for SSO's	
5S	5SSO11055	Active	Southeast Regional Waste Disp Fac CS	Lake Cnty	893241	1.2	Certified	George Hornung	Deputy Administrator	01-FEB-24	08-FEB-24	08-FEB-24	Category 1 Spill	6825 & 6855 Meadowbrook Dr	01/31/2024 21:33	01/31/2024 21:33	01/31/2024 21:30	02/01/2024 09:20	24-0585		The spill originated from a manhole in front of 6825 Meadowbrook Dr, Clearlake, CA 95422.	38.93378	-122.63075	Manhole		A second appearance point was another manhole in front of 6855 Meadowbrook Dr, Clearlake, CA 95422.  Lat: 38.93349, Long: -122.63018	11340	The spill exited the manholes, ran down the gutter and entered a seasonal stream that leads to Cache Creek.	N				The spill left the concrete gutter and entered a seasonal stream and local drainage and was transported to Cache Creek.	11340	0	Street/Curb and Gutter (2 3); Surface Water		The spill was from two manholes and spilled onto the paved roadway surface and concrete gutter and was transported to a seasonal stream and then into Cache Creek.	N									02/01/2024 00:12	Flow rate multiplied by the duration of the spill.  Field staff were on scene when the spill started and monitored the spill flow rate and duration.  Flow rates were determined by comparison to overflowing sewer manhole pictures.	Crews were in the area performing storm related patrols, checking the collection system for surcharging and checking lift stations for proper operation when they noticed the spill starting.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Polyvinyl Chloride (PVC)		47	The spill was from a manhole that spilled onto the paved roadway surface and concrete gutter and was then transported to a seasonal stream that enters Cache Creek.	Y	Mitigated Effects of Spill (specify below); Restored Flow		The District called in pumper trucks to help reduce the surcharge in the collection system. Pumper trucks hauled approximately 74,000 gallons of sewage from the collection system to the Southeast Wastewater Treatment Plant for disposal.  Field staff cleaned and washed down the affected area and disposed of the wash water and debris at the Southeast Wastewater Treatment Plant. Crews placed lime and warning signs.	Plan Rehabilitation or Replacement of Sewer		The District is looking at the ability to install a pump station that would relieve the surcharge off of this section of the collection system.  The District needs to look at ways to re-route the sewer from east of State Route 53, so it does not concentrate in this section of the collection system causing the system to surcharge during large storm events.	N/A	02/01/2024 00:12	The spill was caused by the collection system being overwhelmed by the storm event and pumper trucks not being able to keep up with the flows.	N			unnamed seasonal stream and Cache Creek	Stream/Creek		Unnamed seasonal stream and Cache Creek	None observed	Restricted Public Access		Environmental Health and Public Health	6	N	Y	See attached map	total coliform and E. coli										
1	1SSO10086	Active	Yreka City CS	Yreka City	893245	1.1	Certified	Matthew Bray	Director		01-FEB-24	01-FEB-24	Monthly Category 3 Spill	S Main Street at Greenhorn Rd	11/04/2023 12:33	11/04/2023 12:41	11/04/2023 12:03				Spill exited a Sanitary Sewer Manhole at the Intersection of S Main Street and Greenhorn Rd	41.71191	-122.64171	Manhole			410	Spill exited Sanitary Sewer Manhole traveled approximately 40' to north and reentered collection system at manhole on same gravity mainline damaged by construction. 	N						308	Other (specify below); Unpaved Surface	Spill reentered collection system through Sanitary Sewer manhole with top cone ajar from contstruction.	Spill exited sanitary sewer manhole because flow line was blocked with construction debris then traveled across gravel, from a street conform during a Caltrans Road Rehabilitation project.  The sewage then reentered the collection system through the cone of a manhole that was damaged during the same conform project.	Y	41.71193	-122.64169							11/04/2023 13:25	spill volume was estimated by Duration and flow rate photo comparison reference.  Spill recovery was estimated because flow entering ajar manhole was approximately 3/4 of the flow exiting the plugged manhole.  (410 x .75 = 307.5).  The remaining 102 gallons absorbed into the gravel  	Start time was estimated by deducting a reasonable amount of time from the time the SSO was reported.  End time was when flow was restored to the sewer mainline and flow stopped exiting the manhole.	Debris from Construction		Gravity Mainline; Manhole		Concrete		45	Minimal.  A portion of the spill was absorbed in the ground	N	Restored Flow		Sewer combination truck sucked up construction debris from manhole that was blocking flow.  sewer mainline was jetted for multiple segments down stream to remove all construction debris.    Boundaries of spill were sanitized and base rock was added as a cap.	Other (specify below); Repaired Facilities or Replaced Defect	Spoke with Contractor working on Project about construction Debris in our Collection system and damaging our assets with out giving notification and repairing immediately. 	Construction company reset manhole cones and properly grouted not allowing debris to enter in the future. 		11/04/2023 15:30	Both Manholes were in freshly ground out construction area that was scheduled to be paved the following week.  Both manhole rings were were damaged and moved by construction equipment.  This allowed for construction material to plug gravity mainline.   Spill exited sanitary sewer manhole because flow line was blocked with construction debris then traveled across gravel, from a street conform during a Caltrans Road Rehabilitation project.  The sewage then reentered the collection system through the cone of a manhole that was damaged during the same conform project.		continue to inspect following construction and monitor assets	11/06/2023 15:25														None	Talked with Contractor who damaged our system	No	Repaired by contractor and inspected by City & Caltrans	Manholes Repaired	Not in current project	Task submitted in Cartegraph our asset management program for annual maintenance.  	Spill response activities not modified	continue to inspect following construction and monitor assets	
2	2SSO10135	Active	Foster City CS	Foster City PWD	893246	1.2	Certified	Frank Schoening	Foster City PW Superintendent		01-FEB-24	01-FEB-24	Monthly Category 3 Spill	353 Catamaran St.	01/23/2024 10:00	01/23/2024 10:00	01/23/2024 09:40				Scene was seen dry around 9:30 am. SSO was discovered at 10:00 am. SSO was cleared at 10:30 am. Gravity line at MH-37-6 on Catamaran St. was blocked. Wastewater flowed from manhole 37-06 to gutter and then 140 feet to storm drain # 1505.	37.54944	-122.26855	Gravity Mainline; Manhole			250	Scene was seen dry around 9:30 am. SSO was discovered at 10:00 am. SSO was cleared at 10:30 am. Gravity line at MH-37-6 on Catamaran St. was blocked. Wastewater flowed from manhole 37-06 to gutter and then 140 feet to storm drain # 1505. See Attachments	Y	Scene was seen dry around 9:30 am. SSO was discovered at 10:00 am. SSO was cleared at 10:30 am. Gravity line at MH-37-6 on Catamaran St. was blocked. Wastewater flowed from manhole 37-06 to gutter and then 140 feet to storm drain # 1505.	250				250	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Scene was seen dry around 9:30 am. SSO was discovered at 10:00 am. SSO was cleared at 10:30 am. Gravity line at MH-37-6 on Catamaran St. was blocked. Wastewater flowed from manhole 37-06 to gutter and then 140 feet to storm drain # 1505.										01/23/2024 10:30	Volume Estimation: Duration and Flow Rate Comparison Method.     SSCSS manhole spill gauge Image Comparison	Scene was seen dry around 9:30 am. SSO was discovered at 10:00 am. SSO was cleared at 10:30 am. 	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		50	Spill was stopped and cleaned all wastewater was recovered.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Berms were used to contain SSO. Hydro Jet was used to clear blockage. Pressure washer was used to clean road and gutter. Vac truck was used to remove wastewater and clean up water. 1500 gallons of combined wastewater and pressure washing water was removed from the street, gutter, and catch basin.   	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Added sewer line to PM hot spot list		01/23/2024 11:30	N/A		N/A	01/23/2024 12:00														N/A	Added sewer line to PM hot spot list	Added sewer line to PM hot spot list	N/A	N/A	N/A	N/A	N/A	N/A	
1	1SSO10086	Active	Yreka City CS	Yreka City	893248	1.1	Certified	Matthew Bray	Director		01-FEB-24	01-FEB-24	Monthly Category 3 Spill	Oak Street Alley Below Discovery	10/20/2023 10:53	10/20/2023 11:02	10/20/2023 10:23				spill location was from sewer cleanout in Oak Street Alley just below Discovery Street.	41.73722	-122.64665	Lateral Clean Out (Private)			793	Spill flowed down dirt alley and stopped before reaching any storm water systems.	N						0	Unpaved Surface		final destination was unpaved alley		41.7367	-122.646							10/20/2023 11:15	A ponded sewage calculation was used at 1  deep to accommodate for the sewage that was absorbed into the ground. 	a reasonable amount of time was deducted from the first call to our agency for spill start time	Root Intrusion		Gravity Mainline		Vitrified Clay		50	Minimal.  	N	Cleaned Up (specify below); Restored Flow		Jetter truck was deployed to clean sewer line and restore flow.  Solids were were collected by hand crew and disposed of in drying beds of Wastewater Treatment Plant.  a cap of base rock was graded over alley.	Adjusted Schedule/Method of Preventive Maintenance; Plan Rehabilitation or Replacement of Sewer		This sewer line is included in our current Wastewater Collection Project and scheduled to be replace in late spring or early summer.		10/20/2023 11:15	Root wad was pulled back with jetter and caught in basket in flowline after cleaning.		continue monitoring for overflows 	10/23/2023 15:30														None	Line will be replaced within the year	Yes	Yes in current project	Restored flow	Yes in current project	A work order was submitted in Cartegraph our asset management program to clean this line. 	None	continue monitoring for overflows 	
1	1SSO10058	Active	Rio Dell City CS	Rio Dell City	893249	1.2	Amended	Sunshine Kelly	Wastewater Superintendent	02-FEB-24	14-FEB-24	14-FEB-24	Category 1 Spill	End of Painter Street Manhole	01/31/2024 06:45	01/31/2024 08:00	01/31/2024 06:30	01/31/2024 14:15	24-0566	09-FEB-24	The spill was located at the Painter Street manhole at 556 Painter St. Photos attached show spill location. 	40.503117	-124.093756	Manhole			163600	The spill was located at the Painter Street manhole and flowed down the gravel ditch away from the residential area toward the Eel River, river bar. Photos show the sandbags, and ditch in place to direct the flow away from the residential area. 	N				The Photograph shows the location where the spill stream reached the Eel River.	163600	0	Surface Water		The Spill flowed to the river at Latitude/ Longitude: 40.503055, -124.091890.	Y	40.503055	-124.09189							02/01/2024 10:30	The volume estimation was based on flow monitoring at the site as well as supervisory control from SCADA based on the trend of the Painter Street lift station wet well level and pump control and the influent flow data into the plant.	The methodology of the spill start time was based on supervisory control based on SCADA of the data collected on the Painter Street Pump station trend, and the rain gauge at the Wastewater treatment plant. We were prepared for the event and had sandbags, a ditch to convey the spill away from residential properties and signs posted.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Other (specify below)	The failure is that the sanitary sewer main at this location was constructed with a 90 degree turn at this manhole and the earthquake in December of 2022 destroyed private laterals allowing more I&I to enter this portion of the sanitary sewer system. An upsizing project for this section of the sanitary sewer system is in the works since 2019 and will hopefully see some forward momentum with state funding this spring and summer, before the next wet season.	55	There was no impact to residence, or private property, or human life as spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage and the property owners were made aware of the issue at this site location.	Y	Cleaned Up (specify below)		Spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage was in place, property owners were notified and personnel frequently monitored at this site location. During and after spill the area was monitored to keep clean if there were any sewage debris. After the spill event, the ditch was cleaned, picked up of debris and sprayed with chlorine solution for disinfection.	Plan Rehabilitation or Replacement of Sewer		This site has a planned upsizing project in the planning phases for the past 6 years. Currently waiting on State funding to push the design process forward. Also looking to camera sewer mains and do a smoke test of the laterals in the area that lead to the Painter Street Pump Station.	Meeting with the State Water Control Board and Engineering company GHD on January 24th, 2024, provided some comfort that the State would approve the funding of this project, and the City of Rio Dell can start the design process.	02/01/2024 10:30	This SSO occurred due to the high levels of I&I. The area received 3.84 inches of rain in 24 hours on 1/31/24 and into 2/1/24 the area received an additional 0.58 inches of rain. The atmospheric river saturated the ground and the system causing the pump station to become overwhelmed which caused the SSO at this location, the Painter Street manhole.	N			Eel River	River		The Eel River is a large river that runs north on the east side of the City of Rio Dell.	No known impacts to aquatic life.  The river rose 13.07 feet from 1/31/24 to noon of 2/1/24. 	Public Closure		City of Rio Dell Wastewater Superintendent and the City of Rio Dell P.D.	2	N	Y	A sample was taken upstream in the river of the spill location; RSW-001U: Latitude/Longitude (40.496013, -124.093796). A sample was taken where the spill stream enters the Eel River; RSW-001: Latitude/Longitude (40.503055, -124.091890). A sample was taken downstream in the river of the spill location; RSW-001D: Latitude/Longitude (40.509118, -124.119597)	Per the City of Rio Dell SSO Water Quality Monitoring Plan Samples were analyzed for E.coli and Ammonia.										
1	1SSO10086	Active	Yreka City CS	Yreka City	893251	1.1	Certified	Matthew Bray	Director		01-FEB-24	01-FEB-24	Monthly Category 3 Spill	Lane Street West of S. Oregon Street	11/19/2023 09:38	11/19/2023 09:44	11/19/2023 10:11				Spill Originated from a manhole on Lane Street west of S. Oregon Street.	41.73146	-122.64221	Manhole			585	Spill exited manhole traveled down gutter line of lane street, turned north on S. Oregon Street, and entered drainage inlet.  Then was fully captured in Storm manhole on Center Street.	Y	Concrete Gutter,  12  Storm water pipe, and 36  storm drain line in Center Street.	585				585	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		Spill and wash water were fully captured in storm water manhole in Center Street east of S. Main Street.		41.73084	-122.63407							11/19/2023 10:11	Duration and flow Rate Photo Comparison Reference and dumping a five gallon bucket over 15 to 20 intervals to match flow was utilized.	a reasonable amount of time was deducted from first call to agency to estimate start time.  Spill end time was when jetter truck broke through plug and restored flow to the mainline and spill stopped exiting from manhole.	Root Intrusion		Gravity Mainline		Vitrified Clay		75	None.  Spill was 100% captured along with 2000 gallons of wash water.	N	Restored Flow; Returned All Spill to Sanitary Sewer System		Combination Vacuum truck was deployed to set on dry Storm Manhole down stream from overflow.  Then sucked up all Liquids from both SSO then emptied and filled two more times with wash water.  Jetter truck was deployed to clear obstruction in mainline, stop spill, then continue to clean line.  Water truck was deployed to washdown area then run 2000 gallons of clean wash water in increments  to not over fill Combination Vacuum Truck.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Increased cleaning schedule and prioritized line to be replaced in future improvement project.		11/19/2023 13:55	Roots were pulled back by Jetter truck and captured in basket of flowline.  CCTV inspection confirmed root intrusion from multiple joints.		continue to monitor for SSO's and shedule CCTV investigation	11/21/2023 15:30														none	Increase cleaning and inspection schedule on this line.	Yes	Not in current project.  Hope to include in next.	Restored flow, cleaned, and inspected with CCTV. 	not at this time	Task Scheduled in Cartegraph or asset management program and completed on 12-12-23.	none	continue to monitor for SSO's and shedule CCTV investigation	
1	1SSO10086	Active	Yreka City CS	Yreka City	893255	1.1	Certified	Matthew Bray	Director		01-FEB-24	01-FEB-24	Monthly Category 3 Spill	S. Oregon and Florentine st 	01/09/2024 12:56	01/09/2024 13:11	01/09/2024 12:46				Spill out of manhole at S. Oregon and Florentine street	41.71987	-122.64166	Manhole			134	spill exited manhole traveled to concrete gutter flowed north on South Oregon street turned west on Lawrence street and entered storm inlet.	Y	small diameter corrugated pipe drainage system that enters shared system with Caltrans before discharging to Yreka Creek	134				134	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		Spill entered drainage system but next downstream inlet was dry when Combination Vacuum arrived and was able to capture 100% of spill + wash water at this inlet.		41.72072	-122.64033							01/09/2024 13:24	Duration and Flow Rate Photo Comparison Reference was Utilized for estimation.  Volume recovered was verified by vacuuming spill until it stopped flowing, then adding 500 gallons of wash water and vacuuming all wash water until no flow.  Gutter line was washed, sanitized vacuumed and returned to collection system	Start time was estimated by deducting a reasonable amount of time from original call.  End time was when Jetter truck cleared plug and flow stopped exiting manhole.	Debris-General; Fats, Oil and Grease (FOG)		Gravity Mainline		Concrete		50	None.  Spill was fully captured and returned to collections system	N	Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Combination vacuum truck was deployed to capture spill at first dry downstream storm inlet.  Jetter truck was deployed to clear gravity mainline, restore flow, and clean line.  Sewer response trailer deployed to place  absorbent waddles and protect storm drain inlets and properties.   Water truck was deployed to clean site and send 500 gallons of wash water down the storm system to be captured by vacuum truck.	Adjusted Schedule/Method of Preventive Maintenance		preventative jetting and cleaning schedule adjusted.		01/09/2024 14:30	Debris and grease were pulled back into basket in flow line while jetting to unplug. 		Continue to monitor for sewer overflows	01/09/2024 15:30														none	clean line more frequently.  continue to to educate homeowners and food service industries of FOG program. 	Yes	Not in current project	Repaired by cleaning	No	Task entered to jet this line into Cartegraph our asset management  on 1-24-23.	More frequent cleaning use Cartegraph to set recurring maintenance tasks for this line.	Continue to monitor for sewer overflows	
2	2SSO10172	Active	Ross Valley Sanitary District CS	Ross Valley SD	893260	1.1	Certified	Paul Bruemmer	O&M Manager 		28-FEB-24	28-FEB-24	Monthly Category 3 Spill	970 butterfield rd, San Anselmo, CA 	02/01/2024 07:38	02/01/2024 08:16	01/31/2024 19:00				The spill originated from a failed pipe-patch at a point of 190' upstream from MH H000.080 a 10  VCP main. The partial blockage restricted the flow, ultimately created a backup in the private lateral of 970 butterfield property. The discharge appearance point was at the property clean outs (2).  	38.00608	-122.57636	Lateral Clean Out (Private)			900	After exiting the (2) property clean outs, the spill pooled and saturated the unpaved ground in around the clean outs in the yard of the address. 	N						0	Unpaved Surface		After exiting the (2) property clean outs, the spill pooled and saturated the unpaved ground in around the clean outs. The spill remained on the property of 970 Butterfield Road.   	Y	38.00608	-122.57636							01/31/2024 21:30	Because the spill occurred the night before, staff were able to pull flow data from a conveniently located SMART cover (flow monitor) from the down stream MH. This was used with lateral dimensions to calculate the volume. 	Eye witness account. 	Pipe Structural Problem/Failure - Installation		Gravity Mainline		Vitrified Clay		74	No impact of spill. Spill saturated into the dirt of the homeowners yard. 	Y	Restored Flow		The spill had ended by the time staff arrived. 	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		A new pipe patch is scheduled to be reinstalled when flows recede from ongoing storms. 			The spill originated from a failed pipe-patch at a point of 190' upstream from MH H000.080 a 10  VCP main. The partial blockage restricted the flow, ultimately created a backup in the private lateral of 970 butterfield property. The discharge appearance point was at the property clean outs (2).  		no	02/02/2024 09:52														n/a	replacement of pipe patch in system which had failed and allowed flow to back up 	no	A new pipe patch is scheduled to be reinstalled	Yes, inspected. 	no	no	Spill had ended upon arrival, staff removed failed pipe patch that was restricting flow and restored system flow to normal. worked with homeowner on spill times for estimation and cleaned any remaining solid debris from site 	no	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	893269	1.2	Certified	John J. Hough	San Dist. Superintendent	02-FEB-24	15-FEB-24	15-FEB-24	Category 1 Spill	338377	02/01/2024 01:31	02/01/2024 03:26	01/31/2024 23:45		-		See attached Spill Map with Photos.	38.6598	-121.2509	Inside Building or Structure; Lateral Clean Out (Public)			39	See attached Spill Map with Photos.	Y	See attached Spill Map with Photos.	0	0	See attached Spill Map with Photos.	36	3	Building or Structure; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		See attached Spill Map with Photos.	Y	38.65982	-121.25097	38.64984	-121.2521					02/01/2024 03:26	See attached Spill Volume Estimation.	See attached Spill Volume Estimation.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		48	No observed impact of the spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified the Sacramento County Department of Water Resources via Sacramento County Central Dispatch.	See attached Description of Event	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected the main line with CCTV on February 1, 2024. Based on the findings, SacSewer added the main line to a 48-month cleaning frequency PM.	SacSewer added the main line to a 48 month PM schedule on 2/2/24.	02/01/2024 08:45	See attached Description of Event	N			Unnamed Tributary to the American River	Stream/Creek		The waterbody was an earthed-lined creek with fast flow.	No observed impacts to aquatic life.	Other (specify below)	No impact since the minor spill washed away during heavy rain and no presence of sewage was detected.	N/A	0	N	N												
9	9SSO10662	Active	County of San Diego CS	San Diego County Dept of Public Works	893275	1.1	Certified	Anthony Hooper	LUEG Program Manager		09-DEC-24	09-DEC-24	Monthly Category 3 Spill	9640 Caminito De Maria	02/01/2024 18:38	02/01/2024 19:20	02/01/2024 19:52				Spill originated from a private lateral clean out located at 9640 Caminito De Maria.	32.75654	-116.98789	Lateral Clean Out (Private)			740	Spill remained on private property, collecting in an excavation adjacent to the private driveway.	N						600	Unpaved Surface		Spill destination was an excavation adjacent to the private driveway of 9640 Caminito De Maria.	Y	32.75654	-116.98787							02/01/2024 19:52	Estimate based on flow volume X duration of spill and amount of spill recovered from the excavation.	Estimated start time based on information provided by resident phone call. Spill end time was observed by County personnel.	Root Intrusion		Gravity Mainline		Vitrified Clay		62	Minimal impact, spill contained to unpaved area on private property, did not affect property owner. 	Y	Cleaned Up (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Vacuumed all available spill contents and returned to sanitary sewer system. Disinfected and cleaned up area of spill. 	Inspected Sewer Using CCTV to Determine Cause		Sewer system remains on a scheduled preventive maintenance cycle to prevent root growth and clean any debris that may accumulate in the main.		02/02/2024 15:00	Roots identified as cause of spill when relieving blockage during spill response.		No ongoing investigation.	02/02/2024 15:00														No enforcement action	No system or operation/maintenance program modifications needed.	No schedule adjustments.	No rehabilitation or replacement planned.	Gravity sewer main inspected on 2/2/2024. Gravity sewer main is in good condition with no identifiable defects. 	No Capital improvements planned for this gravity main segment.	No system modifications planned.	No spill response modification planned.	No ongoing investigation.	
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	893276	1.4	Certified	Daniel Whitlock	Manager	02-FEB-24	14-FEB-24	14-FEB-24	Category 2 Spill	Folsom St X 17th St	01/31/2024 19:37	01/31/2024 19:55	01/31/2024 19:35		-		Upon arrival onsite by field staff, water was coming out of 2 catch basins at the intersection of 17th and Folsom due to storm event.	37.7621	-122.41503	Combined Sewer Drain Inlet. (Combined Collection System Only); Inside Building or Structure; Manhole	Water was coming out of 2 catch basins at the intersection of 17th and Folsom due to storm event.	Internal plumbing fixtures from 2104 Folsom to 2108 Folsom 	955600	Spill is from 2100 Folsom St corner catch basin onto sidewalk to 2140 Folsom St	N						955600	Building or Structure; Paved Surface; Street/Curb and Gutter (2 3)		Spill isolated to the northwest corner of 17th and Folsom in the street and gutter and buildings.	Y	37.76367	-122.41517							01/31/2024 20:30	SFPUC H & H Model  Asset #'s: N-18131 N-39574 N-18434 N-18130 N-24429 N-37989 N-57999 N-24428 N-73363	Level sensor alerts and H&H model were used to estimate the start and end times of the spill.	Surcharged Pipe (Combined Collection System Only)	Surcharged pipe due to excessive rain.	Other (specify below)	No failure. System surcharge due to substantial rain.	Concrete; Other (specify below)	Re-enforced Concrete	77	Street and sidewalk were flooded. Flood barriers were in place to prevent water from entering buildings. Some property damage due to internal flooding.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Other Enforcement Agency Notified; Property Owner Notified; Returned All Spill to Sanitary Sewer System	Flood barriers were set up prior to spill which limited damage and contained spill.	Barriers were in place prior to spill, which prevented further property damage.  Claims was notified for restorations services. Streets and sidewalk were cleaned.	Other (specify below)	No corrective action can be taken since spill was due to surcharge because of rain.	No corrective action can be taken since spill was due to surcharge because of rain.	No corrective action can be taken since spill was due to surcharge because of rain.	01/31/2024 14:23	No corrective action was taken since spill was due to surcharge because of rain.	N												N													
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	893277	1.3	Certified	Daniel Whitlock	Manager	02-FEB-24	14-FEB-24	14-FEB-24	Category 2 Spill	Alemany and Crescent	01/31/2024 19:42	01/31/2024 20:00	01/31/2024 20:10		-		Manholes from Crescent to Ellsworth along Alemany.	37.73433	-122.4117	Manhole		From Putnam to Ellsworth along Alemany, 13 manholes were surcharging.  Asset #'s: N-66324 N-61600 N-13038 N-20189 N-18063 N-56739 N-34106 N-19448 N-18059 N-35695 N-18065 N-37211 N-66325 	457924	intersection of Crescent @ Nevada	N						457924	Paved Surface; Street/Curb and Gutter (2 3)		Per SFPUC H&H Model, 13 Manholes surcharged on Alemany from Ellsworth to Crescent.	Y	37.73223	-122.41899	37.73332	-122.41381	37.73455	-122.41126			01/31/2024 20:30	SFPUC H&H Model estimated the volume and extent of the spill. However upon arrival from our field crew there was no evidence of a spill.	SFPUC H&H model and level sensor alerts were used to estimate the volume and extent and start and end times of the spill.	Surcharged Pipe (Combined Collection System Only)		Other (specify below)	No failure occurred. Rainfall exceeded the capacity.	Concrete	Re enforced concrete	97	Nobody witnessed the spill. Crew arrived and discovered dislodged manhole.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified	Returned all spill to the combined sewer system.	Level sensors alerted us and field crews arrived on scene. However there was no evidence of a spill. Crews washed down ground area.	Other (specify below)	No corrective action can be taken at this time. Rainfall exceeded capacity.  There is a project in the planning phases to address flooding issues in the area.	No corrective action can be taken. Rainfall exceeded capacity.	There are none at this time.	02/01/2024 01:00	No corrective action can be taken at this time. Rainfall exceeded capacity.  There is a project in the planning phases to address flooding issues in the area.	N												N													
5R	5SSO10801	Active	Redding City CS	City of Redding	893280	1.7	Amended	Josh Vandiver	Wastewater Utility Manager	05-FEB-24	09-FEB-24	09-FEB-24	Category 1 Spill	Clear Creek Wastewater Treatment Plant	02/04/2024 23:17	02/04/2024 23:40	02/03/2024 23:32	02/05/2024 07:03	24-0681	13-MAR-24	Power loss at the treatment plant. The backup generator started as designed, however, the pumps went into alarm and would not clear until the operator acknowledged the alarm. Flow surcharged both influent pump stations wet wells, then the collection system before reaching the overflow structure into Clear Creek.  Power was off at 23:17, surcharge happened until 23:32 when overflow began.  The operator arrived at 23:40, pumps were fully operational and overflow stopped at 23:51.	40.50483	-122.36914	Other Sewer System Structure	Overflow gate from treatment plant influent pump station.		467213	Overflow gate from treatment plant influent pump station, discharges into Clear Creek, approximately 175 feet from confluence of the Sacramento River	N				The overflow structure sits adjacent to Clear Creek, which is a tributary to the Sacramento River.	145837	0	Other (specify below)	Overflow structure of treatment plant influent pump station	discharged directly into Clear Creek, approximately 175 feet from main channel entrance of Sacramento river	Y	40.5049	-122.36887							02/04/2024 23:55	Flow rate into the plant was taken and broken down to gallons per minute, and estimated capacity of both pump station wet wells and collection system surcharge until the elevation of overflow structure was reached.  SCADA information to show pumping rates once pumps were restarted. As the water in/water out overflow occurred, track per minute what was spilling until pumps were pumping more than what was coming in, therefore ending the overflow.	SCADA historian data, showing when power went off, influent flow rate, pumping rate, as-built drawings depicting elevations and capacities of infrastructure, (wet well and collection system) as well as elevations of piping and overflow structure.  Pipeline surcharge analysis conducted with Arc GIS by a registered professional engineer.	Pump Station Failure - Controls; Pump Station Failure - Mechanical; Pump Station Failure - Power	Power outage Level probe failure Pump control Programming failure	Other (specify below)	Overflow structure constructed as part of original influent pump station design, circa 1966.	Other (specify below)	concrete vault with a steel hinged flap gate	58	Spill discharged directly into Clear Creek, which meets the Sacramento river.  Discharge was unrecoverable as flows in the creek and river are flowing at very high seasonal rates. (Photo attached)	Y	Other (specify below); Other Enforcement Agency Notified; Restored Flow	Operations staff responded to the station, cleared all alarms, started all pumps in hand and locked generator in  on  position to ensure stable power.	Spill discharged directly into Clear Creek, which meets the Sacramento river.  Discharge was unrecoverable as flows in the creek and river are flowing at very high seasonal rates. (Photo attached)	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below)	Complete reprogramming of logic controllers at influent pump station. Replaced level transducer in the station.   Installing backup level sensors in both wet wells.   Installing emergency  high-level sensors  with programming changes to PLC logic control to override alarm delays, eliminating human acknowledgment of alarms before pumps can resume operation.  Reprogramming logic controllers with  E-Run  mode based on  high-high  backup level float system. Change the programming of generator logic to lock in on generator power for a minimum run time of 30 minutes before looking for shore power. 	Install float sensor in influent structure to identify high level independently of wet well level, as an extra back-up.  This sensor will be used as the override to start the  E-Run  process.	Changes are being implemented immediately.	02/05/2024 10:00	Wind storm caused public power to fault.  Emergency generator started and powered up location. As public power came on and off, ATS switched load back to shore power and back to generator power repeatedly.  Pump controllers went into alarm and  locked up , pumps would not restart.  Level transducer on second pump station failed, therefore not registering a high level condition and not calling for pumps. Operations staff was notified as soon as power was disrupted and responded to the site within 25 minutes of receiving the call and had all pumps running within 6 minutes of arriving. 	N			Sacramento river via Clear Creek	River		Sacramento River, south of Redding, north of Anderson	None observed	Other (specify below)	Spill was at the upstream end of the treatment plant property, which is fenced and limits public access for approximately 1.25 miles of riverbank downstream	NA	0	N	Y	DSC-001 Plant Headworks RSW-001 SSO Location RSW-001U 50' upstream of SSO Location RSW-001D Downstream of SSO Location (Located at R1 sample	EC, pH, Temp, DO, Ammonia, Total Coliform, E-Coli										
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	893285	1.2	Amended	Daniel Whitlock	Manager		09-FEB-24	09-FEB-24	Monthly Category 3 Spill	1925 Evans street	02/01/2024 09:00	02/01/2024 09:15	01/31/2024 15:30				Catch Basin overflowed due to surcharged main sewer during rain event.	37.74639	-122.39451	Combined Sewer Drain Inlet. (Combined Collection System Only); Other (specify below)	Catch Basin- N-65088		119	See Attachment's	N						119	Paved Surface; Street/Curb and Gutter (2 3)		Upon arrival staff believed it was just a flooded catch basin and began sucking it down. they then realized it was filling back up through the culvert. Determining the main sewer was surcharged.	N									02/01/2024 09:30	Volume by Area - See attachment for total.  9 ft x 9 ft x 0.785 x 0.5 ft x7.48 x 0.5%wet = 118.9 gallons  Total = 119 gallons	Resident at 1925 Evans St. said the spill started between 15:00 and 16:00.  Judging by the rainfall we determined the spill started at 15:30.	Surcharged Pipe (Combined Collection System Only)		Other (specify below)	There was no failure. There was a surge charge in main sewer during rain event.	Vitrified Clay	Asset P-103943	79	Spill was contained in low lying area around the catch basin (see attachment). Staff believed it was just a flooded catch basin upon arrival, that is why there are no photos of flooded catch basin.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Returned All Spill to Sanitary Sewer System		Spill was contained in low lying area around the catch basin (see attachment). Staff believed it was just a flooded catch basin upon arrival, that is why there are no photos of flooded catch basin. Area was sucked down and cleaned when water receded. 	Other (specify below)	No Correction measure could prevent surcharge.	No Correction measure could prevent surcharge.		02/01/2024 12:12	Heavy rain caused pipe to surcharge.		No	02/01/2024 12:14														No Correction measure could prevent surcharge.	No Correction measure could prevent surcharge.	N/A No Correction measure could prevent surcharge.	No Correction measure could prevent surcharge.	No Correction measure could prevent surcharge.	N/A	N/A	Staff cleaned area and recovered spoils.	No	
5S	5SSO11055	Active	Southeast Regional Waste Disp Fac CS	Lake Cnty	893287	1.2	Certified	George Hornung	Deputy Administrator	05-FEB-24	08-FEB-24	08-FEB-24	Category 2 Spill	Burns Valley Rd and Turner St	02/04/2024 11:30	02/04/2024 11:00	02/04/2024 11:30	02/04/2024 13:34	24-0658		When field staff started the third pump at Lift Station 1 Southeast, it caused the Tesla Battery Pack to kick the breaker and removed the lift station from PG&E�s grid power.  Field staff started up the emergency generator on site and got the lift station operating on the generator power.  While staff was transferring the lift station to generator power there was a sewer spill that lasted about 20 minutes and was spilling at a rate of 50 gallons per minute for a total volume of 1,000 gallons.	38.96365	-122.63124	Manhole			1000	The spill collected along the roadway shoulder.	N						1000	Paved Surface; Unpaved Surface		The spill was from a manhole and spilled on the paved roadway surface and unpaved shoulder.	N									02/04/2024 11:50	flow rate multiplied by the duration of the spill	Volume estimation pictures of manhole and pick hole overflows	Other (specify below)	While field staff were at the lift station 1 southeast getting ready to bring pump number 3 online due to high flows, there was an issue with the TESLA battery pack at the lift station.  When the third pump was turned on it caused the TESLA batter pack to kick a breaker causing the lift station to lose grid power.  Field staff immediately started the on-site generator and switched the pumps over to generator power. In the time it took staff to switch over to generator power there was a spill out of a manhole that lasted approximately 20 minutes and was spilling at a rate of about 50 gallons per minute.	Manhole; Pump Station - Power		Polyvinyl Chloride (PVC)		37	The spill was from a manhole and ponded on the paved roadway and unpaved shoulder.	Y	Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Staff used a vactor truck to capture the ponded sewage on the shoulder and transported it to the Southeast Wastewater Treatment Plant for disposal.  Warning signs were posted.	Other (specify below)	Tesla is looking into the issue with their battery pack.  PG&E inspected the power supplying the lift station, placed a data logger on it and found the power supply to be mostly okay.  There is a slight drop in voltage on one of their legs, but it is within specification.  The data from PG&E will be shared with Tesla to help them figure out why the battery pack was kicking the lift station off of grid power.  The Telsa battery pack has been isolated from the system until Tesla can figure out a solution to the issue.	Tesla is looking into the issue with their battery pack.  PG&E inspected the power supplying the lift station, placed a data logger on it and found the power supply to be mostly okay.  There is a slight drop in voltage on one of their legs, but it is within specification.  The data from PG&E will be shared with Tesla to help them figure out why the battery pack was kicking the lift station off of grid power.  The Telsa battery pack has been isolated from the system until Tesla can figure out a solution to the issue.	N/A	02/04/2024 11:50	Tesla is looking into the issue with their battery pack.  PG&E inspected the power supplying the lift station, placed a data logger on it and found the power supply to be mostly okay.  There is a slight drop in voltage on one of their legs, but it is within specification.  The data from PG&E will be shared with Tesla to help them figure out why the battery pack was kicking the lift station off of grid power.  The Telsa battery pack has been isolated from the system until Tesla can figure out a solution to the issue.	N												N													
4	4SSO11388	Active	County Sanitation District Joint Outfall CS	Los Angeles Cnty Sanitation Districts	893288	1.2	Certified	Andre Schmidt	Wastewater Collection Systems Manager	05-FEB-24	15-FEB-24	15-FEB-24	Category 2 Spill	Joint Outfall �J� � Unit 1F Force Main (District 5)	01/31/2024 07:20	01/31/2024 07:31	01/31/2024 07:06		-		The spill originated from LACSD�s above ground Joint Outfall J � Unit 1F roadside force main located at 33.739461� N, -118.369154� W, approximately 10 feet south of Palos Verdes Dr. S., and approximately 180 feet east of Peppertree Drive in the City of Rancho Palos Verdes.	33.739461	-118.369154	Force Main			1500	The spill area extended approximately 90 feet north from the force main Dresser coupling location to a corrugated metal drainage channel on Palos Verdes Drive South, 160 feet east from the force main Dresser coupling location into a corrugated metal drainage channel, 50 feet west along the force main, and 2 feet south up to the ocean side force main.  The spill traveled northeast into a corrugated metal drainage channel on Palos Verdes Drive South approximately 190 feet from the spill origin.  	Y	The spill traveled aboveground northeast into a corrugated metal drainage channel on Palos Verdes Drive South approximately 190 feet from the spill origin as shown in Photo 3.  An estimated 250 gallons of wastewater reached the drainage channel.  	250	0			1500	Drainage Conveyance System that discharges to surface water; Paved Surface; Unpaved Surface		The spill originated from LACSD�s above ground Joint Outfall J � Unit 1F roadside force main located at 33.739461� N, -118.369154� W, approximately 10 feet south of Palos Verdes Dr. S., and approximately 180 feet east of Peppertree Drive in the City of Rancho Palos Verdes.  See attachment for additional details.	Y	33.739704	-118.369237	33.739611	-118.368636	33.739443	-118.3693	33.73972	-118.368694	01/31/2024 08:05	Based on pump operational data from the upstream Abalone Cove Pumping Plant, it was determined that the spill started at approximately 7:06 a.m. Using photos and videos, and observations from LACSD staff, the spill rate at the Dresser coupling was determined to be approximately 25 gallons per minute (GPM). Based on the estimated spill rate, the start time of 7:06 a.m. and the end time of 8:05 a.m. per visual observation, the total spill volume was approximately 1,500 gallons.	See No. 3	Other (specify below)	Failed force main Dresser coupling	Force Main		Other (specify below)	Steel Pipe	45	See Attachment	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	See Attachment	See Attachment	Other (specify below)	In response to the spill, WCS staff are investigating the best way to modify current maintenance practices to prevent future spills, including completing adjustments of Dresser couplings more frequently and setting tighter tolerances of the Dresser couplings to accommodate the increased land movement that has occurred in the active landslide area since the very wet 2022-23 winter.	See No. 10a	N/A	01/31/2024 14:50	See Attachment	N												N													
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	893289	1.3	Certified	Ameal McLaurin	Sewer Supervisor 2	05-FEB-24	07-FEB-24	07-FEB-24	Category 1 Spill	7867 Bancroft Ave.	02/02/2024 16:40	02/02/2024 17:30	02/02/2024 15:40		-		Sewage discharging from lamp hole in sidewalk.	37.76247	-122.17335	Other (specify below)	Lamp hole		480	Sewage discharging from lamp hole in side walk down gutter line into storm inlet.	Y	Sewage discharging from lamp hole in side walk down gutter line into storm inlet, into Arroyo Viejo Creek.	0	0	Sewage discharging from lamp hole in side walk down gutter line into storm inlet, into Arroyo Viejo Creek.	65	415	Drainage Conveyance System; Street/Curb and Gutter (2 3); Unpaved Surface		480 gallons discharge from a lamp hole, 407 gallons was recovered from the street and gutter. 65 gallons discharge into the drainage conveyance system and was not recovered. 8 gallons reach the unpaved surface and was not recovered, lost into the soil.	Y	37.77636	-122.22474							02/02/2024 18:20	160 minutes x 3 Gpm = 480 Gallons total spill. Recovered from sidewalk: 10' L x 4' W x .08' D x 7.48 = 23 Gallons. Recovered from gutter: 151' L x 2' W x .17' D x 7.48 = 384 Gallons. Total Recovered: 23 + 384 = 407 Gallons. Lost in Soil: 8' L x 4' W x .17 D x 7.48 x .1875 = 8 Gallons. Lost in separated storm drain = 65 Gallons. Total spill lost: 65 + 8 = 73 Gallons.	Start time was based on eyewitness account, the complaint party. End time based on when responding cleared the blockage.	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		90	480 gallons discharge from a lamp hole, 407 gallons was recovered from the street and gutter. 65 gallons discharge into the drainage conveyance system and was not recovered. 8 gallons reach the unpaved surface and was not recovered, lost into the soil.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Staff cleaned spill affected areas on the sidewalk, street, and gutter.	Staff cleaned spill affected areas on the sidewalk, street, and gutter.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Sewer line was added to the six-month hydro high frequency maintenance program. WO # 1499334.	Sewer line was added to the six-month hydro high frequency maintenance program. WO # 1499334.	01/17/2024 19:30	CCTV found FOG, debris/wipes and roots to be the cause of the of the blockage.	N			Arroyo Viejo Creek	Stream/Creek		Stream.	None.	Other (specify below)	None.	N/A	0	Y	N												
5S	5SSO11055	Active	Southeast Regional Waste Disp Fac CS	Lake Cnty	893290	1.2	Certified	George Hornung	Deputy Administrator	05-FEB-24	08-FEB-24	08-FEB-24	Category 1 Spill	6825 Meadowbrook Dr	02/04/2024 15:08	02/04/2024 15:08	02/04/2024 15:08	02/04/2024 17:18	24-0670		The storm event over the last several days caused the collection system in this area to surcharge.  Field staff has been present with pumper trucks since Friday, 02/02/24 relieving the surcharge and hauling loads to the Southeast Treatment plant.  At approximately 3:08 pm on 02/04/2024 the pumper trucks were unable to keep up with the surcharge in the system and the SSO began from the manhole.  The spill started out intermittently, spilling and then stopping, up until about 4:44 pm when it began spilling at a constant rate.  Field staff were stationed at the manhole timing the spilling and determining the spill rate.	38.93378	-122.63075	Manhole			32760	The spill entered the concrete gutter and was transported to a seasonal stream and then into Cache Creek.	Y	The spill entered a seasonal stream and then into Cache Creek.	0	0	The concrete gutter leads to a seasonal stream and then into Cache Creek.	32760	0	Paved Surface; Street/Curb and Gutter (2 3)		The spill exited a manhole to the paved roadway surface and concrete gutter and was transported to a seasonal stream and then into Cache Creek.	N									02/04/2024 23:01	Field staff was stationed at the site with pumper trucks relieving the surcharged collection system when the spill began.  The spill started out intermittently and later began to spill consistently.  Field staff were stationed at the spill location timing the spilling and determining the spill rate.	Field staff were station at this location of the collection system prior to the spill with pumper trucks relieving the surcharged collection system when they observed the spill starting.  Field staff were at the spill location for the duration of the spill.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Polyvinyl Chloride (PVC)		47	The spill originated from a manhole, spilled onto the paved roadway surface and concrete gutter.  The spill was transported to a seasonal stream and then into Cache Creek.	Y	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow	Pumper trucks were called in a hauled approximately 460,500 gallons of sewage from the collection system that would have spill and transported it to the Southeast Wastewater Treatment Plant for disposal.  Staff washed the affected area down captured the wash water and debris and disposed of it at the Southeast Wastewater Treatment Plant. Warning signs were placed.	Pumper trucks were called in a hauled approximately 460,500 gallons of sewage from the collection system that would have spill and transported it to the Southeast Wastewater Treatment Plant for disposal.  Staff washed the affected area down captured the wash water and debris and disposed of it at the Southeast Wastewater Treatment Plant. Warning signs were placed.	Other (specify below)	The District is looking at the possibility of installing a bypass pump station that would relieve the surcharging off of the collection system in this area.  The Districts is also looking at the ability to re-route the sewage flows from east of State Route 53 to avoid the section of the collection system.	The District is looking at the possibility of installing a bypass pump station that would relieve the surcharging off of the collection system in this area.  The Districts is also looking at the ability to re-route the sewage flows from east of State Route 53 to avoid the section of the collection system.	N/A	02/04/2024 23:01	The spill was caused by the collection system being surcharged due to the storm event, and pumper trucks not being able to keep up with the flows.	N			unnamed seasonal stream and Cache Creek	Stream/Creek		unnamed seasonal stream and Cache Creek	none observed	Restricted Public Access		Environmental Health and Public Healt	7	N	Y	see attached map	total coliform and E.coli										
5R	5SSO10859	Active	Chico CS	Chico City	893296	1.2	Certified	Skyler Lipski	Deputy Director, Public Works O&M	05-FEB-24	05-FEB-24	05-FEB-24	Category 2 Spill	1295 Woodland	02/03/2024 11:15	02/04/2024 11:45	02/03/2024 11:00		-		Manhole #s 66018, 66021, 66022	39.735429	-121.822773	Manhole	39.736374, -121.820692 39.735960, -121.821265 39.734972, -121.822782	Three additional manholes showed some signs of wetness	4000	In the storm drain system approximately 1,150', including entering a storm drain interceptor. The entire system was cleaned, vacuumed.	Y	Spill entered at DI after traveling along the curb/gutter. Then through the storm drain system in pipe sizes varying from 12-24 , including entering a storm drain interceptor, traveling approximately 1,150'. Storm drain system beyond that showed no signs of sewage.	4000	0			4000	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		Within the storm drain system to 39.732605, -121.822541.	Y	39.732605	-121.822541							02/03/2024 12:30	Visual estimate	Start time determined by estimate, unknown actual. End time determined by operator onsite when blockage was cleared.	Root Intrusion		Gravity Mainline		Vitrified Clay		95	Ran down curb/gutter into DI.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Crews cleared blockage, washed down gutter with the water truck, cleaned storm drain lines with a jet truck, vacuumed with a Vac truck.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause	Sewer will be cleaned and TV'd, then action may be taken to control roots or repair sewer line as necessary.	Sewer will be cleaned and TV'd within two weeks, then action may be taken to control roots or repair sewer line as necessary.	Sewer will be cleaned and TV'd within two weeks, then action may be taken to control roots or repair sewer line as necessary.	02/05/2024 15:50	Investigation ongoing	Y	Crews will clean the sewer and TV the line to learn more about the condition of the pipe.	02/16/2024 15:59										N												Crews will clean the sewer and TV the line to learn more about the condition of the pipe.	
1	1SSO10042	Active	Loleta CS	Loleta CSD	893298	1.2	Certified	Manuel Fonseca	General Manager	05-FEB-24	05-FEB-24	05-FEB-24	Category 2 Spill	2473 Eel River Dr 	01/31/2024 12:15	01/31/2024 12:30	01/31/2024 12:00		-		24  manhole was bubbling due to a heavy rain event. 40�38'32.6 N 124�13'34.7 W	40.64	-124.22	Lateral Clean Out (Private); Manhole			1000	The manhole was bubbling by 1/8-1/4 of an inch. 	N						1000	Paved Surface		Flow bubbling from 24  manhole. 40.64, -124.22	Y	40.64	-124.22							01/31/2024 13:00	1000 gallons	scale of flow bubbling	Flow Exceeded Capacity (Separate Collection System Only)		Manhole		Polyvinyl Chloride (PVC)		20	surface runoff	Y	Restored Flow		added a second pump at WWTF to assist with flows.	Plan Rehabilitation or Replacement of Sewer		New Wastewater Treatment Facility	Design phase of new Wastewater Treatment Plant	02/05/2024 16:52	Heavy rain flows impacted the wastewater treatment plant	N												N													
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	893300	1.2	Certified	John J. Hough	San Dist. Superintendent	05-FEB-24	16-FEB-24	16-FEB-24	Category 1 Spill	338506	02/03/2024 18:11	02/03/2024 18:26	02/03/2024 16:00		-		See attached Spill Map with Photos.	38.5928	-121.4121	Lateral Clean Out (Public)			190	See attached Spill Map with Photos.	Y	See attached Spill Map with Photos.	0	0	See attached Spill Map with Photos.	182	188	Drainage Conveyance System that discharges to surface water; Paved Surface; Surface Water; Unpaved Surface		See attached Spill Map with Photos.	Y	38.5928	-121.4121	38.59272	-121.41211	38.59169	-121.41759			02/03/2024 18:26	See attached Spill Volume Estimation.	See attached Spill Volume Estimation.	Fats, Oil and Grease (FOG)		Lower Lateral		Vitrified Clay		63	No observed impacts of the spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	Notified Sacramento County Department of Water Resources Drainage O&M.	See attached Description of Event.	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		SacSewer inspected the lower lateral with CCTV on February 3, 2024. Based on the findings, SacSewer will replace the lower lateral.	Target finish date of lower lateral replacement April 30, 2024.	02/04/2024 03:30	See attached Description of Event.	N			Chicken Ranch Slough	Slough		Concrete lined channel with stagnant flow.	No observed impact to aquatic life.	Other (specify below)	No public access impact.	N/A	0	N	N												
1	1SSO10058	Active	Rio Dell City CS	Rio Dell City	893305	1.2	Certified	Sunshine Kelly	Wastewater Superintendent	06-FEB-24	14-FEB-24	14-FEB-24	Category 1 Spill	End of Painter Street Manhole	02/04/2024 18:00	02/05/2024 07:00	02/04/2024 18:00	02/05/2024 07:10	24-0682	09-FEB-24	The spill was located at the Painter Street manhole at 556 Painter St. Photos attached show spill location. 	40.503117	-124.093756	Manhole			209100	The spill was located at the Painter Street manhole and flowed down the gravel ditch away from the residential area toward the Eel River, river bar. Photos show the sandbags, and ditch in place to direct the flow away from the residential area. 	N				Pictures show the spill stream running toward the Eel River, and a picture of where the spill stream entered the rising Eel River.	209100	0	Surface Water		The Spill flowed to the river at Latitude/ Longitude: 40.503055, -124.091890.	Y	40.503055	-124.09189							02/06/2024 04:00	The volume estimation was based on flow monitoring at the site as well as supervisory control from SCADA based on the trend of the Painter Street lift station wet well level and pump control and the influent flow data into the plant.	The methodology of the spill start time was based on supervisory control based on SCADA of the data collected on the Painter Street Pump station trend, and the rain gauge at the Wastewater treatment plant. We were prepared for the event and had sandbags, a ditch to convey the spill away from residential properties and signs posted.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Other (specify below)	The failure is that the sanitary sewer main at this location was constructed with a 90 degree turn at this manhole and the earthquake in December of 2022 destroyed private laterals allowing more I&I to enter this portion of the sanitary sewer system. An upsizing project for this section of the sanitary sewer system is in the works since 2019 and will hopefully see some forward momentum with state funding this spring and summer, before the next wet season.	55	There was no impact to residence, or private property, or human life as spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage and the property owners were made aware of the issue at this site location.	Y	Cleaned Up (specify below)		Spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage was in place, property owners were notified and personnel frequently monitored at this site location. During and after spill the area was monitored to keep clean if there were any sewage debris. After the spill event the ditch was cleaned and sprayed with chlorine solution for disinfection.	Plan Rehabilitation or Replacement of Sewer		This site has a planned upsizing project in the planning phases for the past 6 years. Currently waiting on State funding to push the design process forward. Also looking to camera sewer mains and do a smoke test of the laterals in the area that lead to the Painter Street Pump Station.	Meeting with the State Water Control Board and Engineering company GHD on January 24th, 2024, provided some comfort that the State would approve the funding of this project, and the City of Rio Dell can start the design process.	02/06/2024 09:00	This SSO occurred due to the high levels of I&I. The area received 4.78 inches of rain 96 hours prior to the 4.5 inches or rain received on 2/4/24 through 2/5/24. The atmospheric river saturated the ground and the system causing the pump station to become overwhelmed which caused the SSO at this location, the Painter Street manhole.	N			Eel River	River		The Eel River is a large river that runs north on the east side of the City of Rio Dell.	No known impacts to aquatic life.	Public Closure		City of Rio Dell Wastewater Superintendent and the City of Rio Dell P.D.	3	N	Y	A sample was taken upstream in the river of the spill location; RSW-001U: Latitude/Longitude (40.496013, -124.093796). A sample was taken where the spill stream enters the Eel River; RSW-001: Latitude/Longitude (40.503055, -124.091890). A sample was taken downstream in the river of the spill location; RSW-001D: Latitude/Longitude (40.509118, -124.119597) .	Per the City of Rio Dell SSO Water Quality Monitoring Plan Samples were analyzed for E.coli and Ammonia.										
2	2SSO10142	Active	Town Of Hillsborough CS	Town Of Hillsborough	893313	1.3	Certified	Rick-Gabriel Pina	Superintendent 		02-APR-24	02-APR-24	Monthly Category 3 Spill	2317 Oakdale Rd	01/30/2024 11:00	01/30/2024 11:20	01/30/2024 10:45				Just around manhole plants area	37.5747	-122.37537	Manhole			50	Just around manhole in plant area  ***UNABLE TO CHANGE TO A CAT 4. Should be 24 gallons total***	Y	catch basin. 	19				19	Unpaved Surface		spill around manhole most stayed in plant area 19gals in catch basin vacced catch basin and free main	Y	37.5747	-122.37536							01/30/2024 11:47	Measured area and volume	calculated from 15 minutes before we received call till main was freed and calculated area where spilled.	Debris from Lateral; Debris-wipes/Non-disposables; Root Intrusion		Manhole		Other (specify below)	Liner	22	Spilled on plants in yard.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Most of spill was contained in plant area 19 gallons went in catch basin that stayed on top due to debris in catch basin vacced out spill and all the debris from catch basin, restored flow. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Placing Smart Cover on Manhole Lid		01/30/2024 11:47	Resident upstream had service done on lateral and came down and plugged our main		CCTV and Placing Smart Cover on Manhole Lid	01/30/2024 11:47														no	Placing Smart Cover on Manhole Lid	On Hot Spot List	On list but for now Placing Smart Cover on Manhole Lid	Manhole needs to be replaced	On list	yes, on Hot spot list every 3 months	Smart Cover on lid will notify us before the spill	CCTV and Placing Smart Cover on Manhole Lid	
3	3SSO10252	Active	Santa Cruz City CS	Santa Cruz City	893329	1.5	Certified	Anne Hogan	Wastewater System Manager	06-FEB-24	12-FEB-24	12-FEB-24	Category 1 Spill	80 Hagemann Ct. Santa Cruz, CA 95062	02/04/2024 08:38	02/04/2024 08:55	02/04/2024 08:30	02/05/2024 10:00	24-0686		Spill caused by large Eucalyptus tree that fell during a storm that produced high force winds and heavy rain. The fallen tree severed a 10'' carbon steel aerial gravity sewer main spanning across Hagemann Gulch causing spill to enter Hagemann Gulch Creek. City of Santa Cruz Wastewater Collection Crews responded immediately upon notification but were met with dangerous storm conditions, falling trees and difficult terrain. City of Santa Cruz Combination trucks (2 Vactor, 1 Vaccon) arrived on scene and began vacuuming from upstream manhole, intercepting flow at 10 am. City crew installed air plug at manhole and set up bypass pumping operation consisting of a 6'' diesel powered Gorman Rupp pump and 350' of bypass hose. City engineer contacted private contractor who arrived onsite to assess damage and coordinate repair. Bypass pumping is ongoing while contractor is mobilizing and preparing for repair.	36.976986	-122.001567	Gravity Mainline	10'' Carbon Steel aerial gravity sanitary sewer main.		2221	Spill occurred at break point of pipeline that is suspended 30 feet in the air and discharged into riparian corridor and creek. Creek final destination point is the Santa Cruz Small Craft Harbor. Heavy rain and dangerous terrain impacted the attempt to recover spill contents which appeared to be heavily impacted by inflow and infiltration of stormwater.	N	The spill did not enter a drainage conveyance system, such as structures, channels, or pipes, however it did discharge into a riparian area and creek.			Discharge occurred at break in pipeline caused by large Eucalyptus tree that fell and severed 10'' 853 Carbon Steel aerial gravity sewer main.	2221	0	Surface Water		Spill caused by large Eucalyptus tree that fell during a storm that produced high force winds and heavy rain. The fallen tree severed a 10'' carbon steel aerial gravity sewer main spanning across Hagemann Gulch causing spill to enter Hagemann Gulch Creek. Spill occurred at break point of pipeline that is suspended 30 feet in the air and discharged into riparian corridor and Hagemann Gulch Creek. Creek final destination point is the Santa Cruz Small Craft Harbor. Heavy rain and dangerous terrain impacted the attempt to recover spill contents which appeared to be heavily impacted by inflow and infiltration of stormwater.	Y	36.976986	-122.001567							02/04/2024 10:00	The methodology used to calculate and quantify this spill is based on the Upstream Connections Method provided by Sewer Overflow Volume Estimation Workbook and the 117 residences upstream of the spill as shown on the City of Santa Cruz Sanitary Sewer Map and GIS.  The link below is from the City of Santa Cruz Water Dept which says average daily residential water per person use is 76 gallons for City of Santa Cruz water customers.   https://www.santacruzcountyca.gov/Portals/0/County/grandjury/GJ2005_final/6%20-%202%20SpD%20SC%20Water.htm#:~:text=Average%20daily%20residential%20water%20use,of%20Santa%20Cruz%20water%20customers.  I�m calculating 76/gpd x 4 people per residence= 304 gpd per residence. 304 gpd= 12.66 gal per hour/residence. 12.66 gph X 1.5 hrs= 18.99 X 117 homes upstream= 2,221.83 gallons spilled. 	Time of call from City of Santa Cruz 911 emergency dispatch (Net Comm) was at 8:38 AM. City Staff were already mobilized in the field due to high winds and flooding. First responder Juan Molina arrived at 8:55 am and was met by several neighbors who confirmed a large Eucalyptus tree had fallen at 8:30 am, severing the 10'' aerial gravity sewer main. Spill end time is based on the mobilization of 3 combination units that continuously intercepted/vacuumed flow at the upstream manhole (City manhole identified as Q7-SM403) beginning at10 AM. City crews installed an air plug into the upstream manhole (City manhole identified as Q7-SM404) closest to the break and began installation of sanitary sewer bypass pumping system consisting of a 6'' Gorman Rupp diesel powered pump, 20 ft rigid suction intake hose, and 350' of lay flat discharge hose through Hagemann Gulch to manhole (City manhole identified as Q7-SM520) where gravity flow could resume. See attached GIS for City Manhole ID. 	Natural Disaster (specify below)	Spill caused by large Eucalyptus tree that fell during a storm that produced high force winds and heavy rain. The fallen tree severed a 10'' carbon steel aerial gravity sewer main spanning across Hagemann Gulch causing spill to enter Hagemann Gulch Creek.	Gravity Mainline	See attached GIS. Failure location of the 10'' sanitary sewer aerial gravity main is indicated by a red X.	Other (specify below)	853 Carbon Steel 	25	Initial investigation appears to minimal to no impact, however further investigation, sampling, and monitoring is ongoing.	Y	Restored Flow	Installed temporary bypass pumping system in conjunction with vacuum interception by 3 combination units.	Heavy rain, high winds, and dangerous terrain impacted the attempt to recover spill contents which appeared to be heavily impacted by inflow and infiltration of stormwater. Spill containment is based on the mobilization of 3 combination units that continuously intercepted/vacuumed flow at the upstream manhole (City manhole identified as Q7-SM403) beginning at10 AM. City crews installed an air plug into the upstream manhole (City manhole identified as Q7-SM404) closest to the break and began installation of sanitary sewer bypass pumping system consisting of a 6'' Gorman Rupp diesel powered pump, 20 ft rigid suction intake hose, and 350' of lay flat discharge hose through Hagemann Gulch to manhole (City manhole identified as Q7-SM520) where gravity flow could resume. See attached GIS for City Manhole ID.	Repaired Facilities or Replaced Defect	Emergency repairs which require large cranes are being handled by an outside contractor. Work is ongoing and pipeline replacement is nearing completion. Temporary bypass pumping is operational and in place until completion. 	Regular inspections pre and post storm events of aerial sewer. Many trees have been trimmed or cleared as per recommendation by City of Santa Cruz Arborist.	Regular inspections shall be conducted with consideration of access and personnel safety. 	02/10/2024 13:26	Natural disaster caused by extreme weather. High winds and soil saturation due to heavy rainfall caused trees to fall and sever 10'' sanitary gravity sewer, as well as, damage nearby homes.	Y	Continued monitoring and inspection.	02/16/2024 14:05	Hagemann Gulch Creek	Stream/Creek		Spill discharged into riparian corridor and Hagemann Creek. The final destination point of Hagemann Creek is the Santa Cruz Small Craft Harbor. 	None obsereved at this time.	Other (specify below)	No impact to public access.	N/A	0	N	Y	Downstream and upstream of spill site.	Caffeine. Further testing/monitoring to be determined by City of Santa Cruz Wastewater Laboratory Technicians.									Continued monitoring and inspection.	
4	4SSO11388	Active	County Sanitation District Joint Outfall CS	Los Angeles Cnty Sanitation Districts	893330	1.2	Certified	Andre Schmidt	Wastewater Collection Systems Manager	06-FEB-24	16-FEB-24	16-FEB-24	Category 1 Spill	Marina Trunk Sewer, Section 1A (District 3)	02/01/2024 09:30	02/01/2024 09:35	02/01/2024 08:00	02/01/2024 15:53	24-0587		The spill originated from a City of Long Beach sewer manhole, located at coordinates 33.7788705� N, -118.1486204� W on Grand Avenue, approximately 15 feet south of the intersection with East 10th Street.  This manhole is directly tributary to the Marina Trunk Sewer, Section 1A and connects to the LACSD sewer system at MH 03 0345.	33.7788705	-118.1486204	Manhole			38630	The spill area extended approximately 20 feet southeast, 15 feet east, 10 feet north, and approximately 15 feet northwest of the City of Long Beach sewer manhole.  The spill traveled northeast into a storm drain catch basin located in the south side gutter of East 10th Street, approximately 20 feet east of the intersection with Grand Avenue. 	Y	The spill traveled aboveground approximately 50 feet northeast into a storm drain catch basin in  the south side gutter of East 10th Street.  This catch basin discharges to a storm drain that eventually flows to the Colorado Lagoon.  An estimated 38,630 gallons of wastewater reached the Colorado Lagoon. 	0	0	The spill entered the Colorado Lagoon from a storm drain outlet located at approximate coordinates 33.771901� N, -118.136403� W, and northeast of the intersection of Park Avenue and East Appian Way in the City of Long Beach.  	38630	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		The spill traveled aboveground approximately 50 feet northeast into a storm drain catch basin in the south side gutter of East 10th Street.  This catch basin discharges to a storm drain that eventually flows to the Colorado Lagoon, Alamitos Bay, and the Pacific Ocean.  	Y	33.7789092	-118.1484503	33.771913	-118.136395	33.767835	-118.130011	33.736468	-118.121623	02/01/2024 12:22	See Attachment	See Attachment	Flow Exceeded Capacity (Separate Collection System Only)		Gravity Mainline		Vitrified Clay		57	The spill reached a storm water catch basin which discharges to a storm drain system that flows to the Colorado Lagoon and eventually the Pacific Ocean.  	Y	Cleaned Up (specify below)		See Attachment	Other (specify below)	To prevent future capacity exceedances in the Marina Trunk, Section 1A sewer, a project to construct a relief sewer is currently in design and construction is expected to begin in late 2024.  	To prevent future capacity exceedances in the Marina Trunk, Section 1A sewer, a project to construct a relief sewer is currently being designed.  The design of the relief sewer is approximately 50 percent complete, with construction expected to begin in late 2024 and be completed in 2025.  LACSD is also working with the City of Long Beach to reduce inflow/infiltration to the City sewers, which are the large majority of sewers tributary to MH 03 345.	See 10b	02/01/2024 14:44	See Attachment	N			Colorado Lagoon, Alamitos Bay, Pacific Ocean	Ocean; Other (specify below)	The Colorado Lagoon is an inland water body or tidal lagoon.  Alamitos Bay is a coastal inlet on the Pacific Ocean.   	The Colorado Lagoon is an inland water body or tidal lagoon.  Alamitos Bay is a coastal inlet on the Pacific Ocean.  Both of these water bodies are tributary to the Pacific Ocean.	None	Public Closure	Long Beach Environmental Health closed six Long Beach bayside beaches on February 1, 2024.  	Long Beach Environmental Health	14	N	Y	Sample 1: 33.7788912, -118.1486229 Sample 2: 33.709204, -118.1351444 Sample 3: 33.7715748, -118.1341299 Sample 4: 33.7706286, -118.1346989 Sample 5: 33.7678133, -118.1299835 Sample 6: 33.75856, -118.11955 Sample 7: 33.757, -118.130 Sample 8: 33.754, -118.131 Sample 9: 33.751, -118.126 Sample 10: 33.744, -118.118 	Total Coliform, Fecal Coliform,  Enterococcus, E. Coli, Ammonia  										
5S	5SSO10933	Active	Donner Summit CS	Donner Summit Public Utilities District	893331	1.2	Certified	James King	Plant Manager	06-FEB-24	06-FEB-24	06-FEB-24	Category 2 Spill	Sugar Bowl Academy 	02/06/2024 12:00	02/06/2024 12:30	02/04/2024 16:00	02/06/2024 17:57	24-0763		Main sewer line became clogged and backed up into a service building and came out of the cleanout in the building.	39.30806	-120.33586	Lateral Clean Out (Private); Manhole			1000	Main sewer line became clogged and backed up into a service building and came out of the cleanout in the building.	N						0	Building or Structure; Unpaved Surface		Inside of building	Y	39.30806	-120.33587							02/06/2024 18:52	Amount of sewage inside building.	Texts and calls	Debris from Construction; Debris-wipes/Non-disposables		Gravity Mainline		Other (specify below)	ABS Plastic	15	Flooded building rooms.	N	Other (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow	Staff will contact a contractor for building evaluation and cleanup.	Located spill in building and determined it to be a main line blockage. accessed manholes for clearing blockage. 	Inspected Sewer Using CCTV to Determine Cause		After snow in area is gone (sometime this spring or summer) staff will have line checked using CCTV.	None	02/06/2024 18:52	the cause was construction debris and rags blocking main line. these were removed with a jetter trailer.	N												N													
4	4SSO11388	Active	County Sanitation District Joint Outfall CS	Los Angeles Cnty Sanitation Districts	893332	1.2	Certified	Andre Schmidt	Wastewater Collection Systems Manager	06-FEB-24	16-FEB-24	16-FEB-24	Category 1 Spill	Marina Relief Trunk Sewer, Section 1B (District 3)	02/01/2024 09:43	02/01/2024 09:57	02/01/2024 08:00	02/01/2024 11:47	24-0599		The spill originated from LACSD�s Marina Relief Trunk Sewer, Section 1B at MH 03 0380 located at coordinates 33.769836� N, -118.131564� W, approximately 26 feet north of the intersection of East Colorado Street and East Eliot Street in the City of Long Beach. MH 03 0380 is currently located within a City of Long Beach construction area.	33.769836	118.131564	Manhole		The spill also originated from a City of Long Beach sewer manhole, located at coordinates 33.7691394� N, -118.1242072� W on Ultimo Avenue, approximately 255 feet south of the intersection with Colorado Street.  The City of Long Beach sewer manhole is directly tributary to the Marina Trunk Sewer, Section 2 and connects to the LACSD sewer system at MH 03 0393.	20100	The spill area from LACSD MH 03 0380 extended approximately 75 feet north to the Colorado Lagoon, and approximately 50 feet northeast to a nearby construction pit.  The spill area from the City of Long Beach sewer manhole extended approximately 2 feet north, and 7 feet west to the west side gutter of Ultimo Avenue.  The spill traveled south and entered a storm drain catch basin at the southern terminus of Ultimo Avenue.  	Y	The spill from LACSD MH 03 0380 spilled into the Colorado Lagoon, an inland water body in the City of Long Beach.  The Colorado Lagoon�s drainage system is tributary to Marine Stadium in Alamitos Bay.  The spill from the City of Long Beach sewer manhole traveled south and entered a storm drain catch basin at the southern terminus of Ultimo Avenue.  This catch basin discharges to a storm drain that flows to Spinnaker Bay.  	0	0	The spill from LACSD MH 03 0380 discharged approximately 50-75 feet northeast of the manhole into the Colorado Lagoon.  The spill from the City of Long Beach sewer manhole entered Spinnaker Bay from a storm drain outlet located at approximate coordinates 33.767535� N, -118.12492� W and approximately 143 feet east of the intersection of Spinnaker Bay Drive and East Eliot Street in the City of Long Beach.  	20100	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See Attachment	Y	33.769836	-118.131564	33.7691394	-118.1242072	33.736468	-118.121623			02/01/2024 12:22	See Attachment	See Attachment	Flow Exceeded Capacity (Separate Collection System Only)		Gravity Mainline		Vitrified Clay		58	The spill from LACSD MH 03 0380 reached the Colorado Lagoon that eventually flows to the Pacific Ocean.  The spill from the City of Long Beach sewer manhole reached a storm water catch basin which discharges to a storm drain that flows to Spinnaker Bay in Alamitos Bay, and eventually the Pacific Ocean.  	Y	Cleaned Up (specify below)		See Attachment	Other (specify below)	To prevent future capacity exceedances in the Marina Relief Trunk Sewer, Section 1B and the Marina Trunk Sewer, Section 2, a project to construct a relief sewer is currently being designed.  The design of the relief sewer is approximately 50 percent complete, with construction expected to begin in late 2024 and be completed in 2025.  LACSD is also working with the City of Long Beach to reduce inflow/infiltration to the City sewers, which are the large majority of sewers tributary to the Marina Relief Trunk Sewer, Section 1B and the Marina Trunk Sewer, Section 2.	To prevent future capacity exceedances in the Marina Relief Trunk Sewer, Section 1B and the Marina Trunk Sewer, Section 2, a project to construct a relief sewer is currently being designed.  The design of the relief sewer is approximately 50 percent complete, with construction expected to begin in late 2024 and be completed in 2025.	See 10b	02/10/2024 11:11	See Attachment	N			Colorado Lagoon, Alamitos Bay, Pacific Ocean	Ocean; Other (specify below)	The Colorado Lagoon is an inland water body or tidal lagoon.  Alamitos Bay is a coastal inlet on the Pacific Ocean.   	The Colorado Lagoon is an inland water body or tidal lagoon.  Alamitos Bay is a coastal inlet on the Pacific Ocean.  Both of these water bodies are tributary to the Pacific Ocean.  	None	Public Closure	Long Beach Environmental Health closed six Long Beach bayside beaches on February 1, 2024.  	Long Beach Environmental Health	14	N	Y	Sample 1: 33.7691456, -118.1242225 Sample 2: 33.7675486, -118.1249283 Sample 3: 33.75856, -118.11955 Sample 4: 33.757, -118.130 Sample 5: 33.754, -118.131 Sample 6: 33.751, -118.126 Sample 7: 33.744, -118.118 	Total Coliform, Fecal Coliform,  Enterococcus, E. Coli, Ammonia 										
4	4SSO11388	Active	County Sanitation District Joint Outfall CS	Los Angeles Cnty Sanitation Districts	893333	1.2	Certified	Andre Schmidt	Wastewater Collection Systems Manager	06-FEB-24	16-FEB-24	16-FEB-24	Category 1 Spill	Palos Verdes North Slope Trunk, Sections 2&3 (District 5)	02/01/2024 09:32	02/01/2024 09:32	02/01/2024 08:00	02/01/2024 13:52	24-0607		The spill originated from LACSD�s Palos Verdes North Slope Trunk, Sections 2&3 at MH 05 1969 at coordinates 33.7938939�N, -118.3664215�S, approximately 111 feet southeast of the intersection of Palos Verdes Drive N and Rolling Meadows Road in the City of Rolling Hills Estates.	33.7938939	-118.3664215	Manhole			22500	The spill extended approximately 35 feet east of MH 05 1969 and 203 feet north along the east curb to the storm drain and along the west curb approximately 144 feet north to the storm drain on the northwest side of Rolling Meadows Road at the intersection of Rolling Meadows Road and Palos Verdes Drive N.	Y	The spill traveled above ground for approximately 200 feet and entered the storm drain. The wastewater flowed through underground storm drains and natural channels approximately 24,500 feet (4.6 miles) before entering the Lomita Storm Drain, where it traveled approximately 5,000 feet and entered the Wilmington Drain. From there, it flowed approximately 4,000 feet south to Machado Lake. An estimated 22,500 gallons may have reached Machado Lake. 	0	0	The spill volume may have discharged to surface water at the outfall from the Lomita Drain to the Wilmington Drain and flowed south to Machado Lake.	22500	0	Surface Water		Destination 1: Manhole 05 1969 Destination 2a: Storm water catch basin (west side of spill) Destination 2b: Storm water catch basin (east side of spill) Destination 3: Discharge location from the storm water conveyance system to Machado Lake	Y	33.7938939	-118.3664215	33.794156	-118.366771	33.794454	-118.366623	33.789164	-118.291886	02/01/2024 10:35	See attachment.	See attachment. 	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Other (specify below)	Vitrified Clay with folded-reformed PVC liner	29	See attachment.	Y	Cleaned Up (specify below)		See attachment	Other (specify below)	See attachment	See attachment	See attachment	02/01/2024 11:00	See attachment	N			Machado Lake	Lake		Surface water	No observed impacts on aquatic life.	Other (specify below)	None	N/A	0	N	Y	Sample 1: MH 05 1969 (33.7938939, -118.3664215) Sample 2: Outfall to Machado Lake (33.789164, -118.291886)	Samples tested for Total Coliform, Fecal Coliform, Enterococcus, and E. Coli.										
2	2SSO10212	Active	Vallejo Sfcd CS	Vallejo Flood & Wastewater District (formerly Vallejo San & Flood Control District)	893335	1.2	Certified	Justin Keating	Director of Field Operations	07-FEB-24	15-FEB-24	15-FEB-24	Category 1 Spill	1350 Tuolumne st.	02/03/2024 12:16	02/03/2024 12:57	02/03/2024 11:45		-		Spill occurred due to mainline blockage appearing from 2 lower lateral district cleanouts. 	38.1172	-122.23776	Lateral Clean Out (Public)	lateral clean out public	lateral clean out public across the street	588	spill onto street from lower lateral cleanout ran down storm gutter into storm drain. 	Y	spill entered storm drainage inlet at bottom of hill.	0	588	spill onto street from lower lateral cleanout ran down storm gutter into storm drain. 	588	0	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Blockage in mainline surfaced as a spill from 2 lower lateral cleanouts. 1 cleanout was actively spilling when operator arrived, the other showed evidence of spill as a wet stain on concrete. Spill traveled on a down sloping street in the curb and gutter and into a storm drain inlet. 	Y	38.1172	-122.23776							02/03/2024 13:42	Operator witnessed cleanout spilling at an estimated 5 gallons per minute. Estimated spill duration was 117 minutes. 5GPM x 117 Min = 585 Gallons Operator measured wet stains on concrete around cleanouts. Other cleanout that showed evidence it had spilled, due to wet stain on concrete was measured at 3 gallons. Bringing the total to 588 gallons.	Operator interviewed resident. The spill was not occurring when he was outside his property throughout the morning. Noticed the spill just after 12:00. At that point he reported the spill to the District.	Pipe Structural Problem/Failure - Controls		Gravity Mainline		Vitrified Clay		55	Spill traveled on a down sloping street in the curb and gutter and into a storm drain inlet. Spill entered storm drain that still had storm water flowing through the system from storms that occurred days prior.	N	Cleaned Up (specify below); Restored Flow		Used hydro-jetting machine to clean street, curb, and gutter. Washed to downstream storm drain catch basin where vacuum truck cleaned debris.	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		CCTV inspection found structural defects in pipe that would have caused spill. Other structural defects were also found. The initial defect as well as additional defects found have been excavated and repaired.	Mainline spot repairs were completed on 2/8/24, 2/12/24. and 2/15/24.	02/03/2024 15:20	CCTV inspection found structural defects in pipe that would have caused spill.	N			Mare Island Strait	River		Mare Island Strait, lower portion of the Napa River.	NA	Other (specify below)	None	Coast Guard	0	N	N												
1	1SSO10064	Active	SCWA Occidental CSD CS	Sonoma County Water Agency (SCWA)	893337	1.4	Certified	Daniel Colvin	WA Coordinator	07-FEB-24	14-FEB-24	14-FEB-24	Category 1 Spill	Minna St	02/06/2024 12:27	02/06/2024 12:37	02/06/2024 06:24	02/06/2024 14:55	24-0753		see attachment	38.40785	-122.94688	Force Main			7026	Spill flowed down the street to a DI	Y	storm drain	0	0	Storm drain discharge to Dutch Bill Creek	7026	0	Drainage Conveyance System that discharges to surface water		DI in street draining to Dutch Bill Creek	Y	38.41077	-122.94897							02/06/2024 12:40	We calculated the total volume that left our storage facility and then subtracted the amount hauled away in trucks from our truck fill station.	This pipeline is used to feed our truck filling station, we are assuming any volume that left the storage ponds and did not make it to our trucks was spilled from the pipe break.  6.93' = 100,987 gallons 5.48' = 53,820 gallons  100,987-53,820=47,167 gallons subtracting the 40,141 gallons hauled we came up with a total of 7,026 gallons spilled.	Damage by Others Not Related to Collection System Construction/Maintenance		Force Main		Other (specify below)	Asbestos-cement pipe (AC)	50	Spill flowed down the street to a DI that was flowing with groundwater to Dutch Bill Creek. There was no noticeable impact.	N	Cleaned Up (specify below); Restored Flow	The spill area was cleaned with a Vac truck and pressure washer.    	Crews were able to shut a valve at the plant to immediately stop the spill. The area was then cleaned with a vac truck. We completed a repair and put the pipe back into service.	Repaired Facilities or Replaced Defect		we replaced a section of pipe that may have been damaged by a nearby storm drain culvert that was installed above our pipe.	work complete	02/06/2024 18:30	Someone had started to dig up the road before we got there. We do not know what their involvement was but after exposing our force main we found the leak at a separated joint. There was a storm drain pipe installed very close to our force main that may have contributed to the pipe damage.	N			Russian River	River		Dutch Bill creek flows to the Russian River	no observed impacts	Other (specify below)	The County Health Department did not take any action we are aware of.	County Department of Public Health	0	N	N												
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	893338	1.5	Certified	Kent Vian	Asst. Deputy Director	07-FEB-24	03-MAR-24	03-MAR-24	Category 1 Spill	NOT-40201062244-3094 OLIVE ST.	02/06/2024 12:29	02/06/2024 12:30	02/06/2024 12:28	02/06/2024 14:10	24-0750		SPILL ORIGINATED AT COORDINATES(36.77826-119.41793) SWITZER CANYON.	36.77826	-119.41793	Gravity Mainline; Manhole	N/A	N/A	1350	SPILL BOUNDARIES ARE SWITZER CANYON.	N	N/A	1350	0	SEWER WENT INTO A CREEK RUNING TO SWITZER CANYON.	1350	0	Other (specify below)	SWITZER CANYON.	SEWER SPILL DESTINATION SWITZER CANYON COODINATES ARE (32.71170-117.08510	Y	32.7117	-117.0851							02/06/2024 14:00	VISUAL CALCULATED METHOD.	START TIME IS WHEN THE CONSUMER CALLS STATION 38. WE RECEIVE CALL AND RESPOND.	Natural Disaster (specify below)	STORM EVENT.	Gravity Mainline; Manhole		Concrete	N/A	23	SEWER IMPACT AREA WAS SWITZER CANYON.	Y	Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified	N/A	CITY CREWS RESPONDED TRACK DOWN FINAL DESTINATION AND CLEAN AREA.	Plan Rehabilitation or Replacement of Sewer	N/A	N/A	N/A	02/06/2024 14:00	N/A	N	N/A		None	Stream/Creek	N/A	N/A	NO	Other (specify below)	NO PUBLIC ACCESS IMPACT	N/A	0	N	N	N/A	N/A									N/A	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	893339	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		09-APR-24	09-APR-24	Monthly Category 3 Spill	1910 South Shenandoah Street	02/06/2024 09:28	02/06/2024 11:09	02/07/2024 09:28				The initial crew arrived at 11:09 A.M. and discovered an 10-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.041813	-118.384804	Manhole			856	Sanitary Sewer Overflow.	N	No Sewage Entered The Drainage System.					856	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	34.041813  -118.384804	Y	34.041813	-118.384804							02/06/2024 13:31	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.  	Spill flowrate and volume determination based on flowout pickhole or opening Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening3inches Flowrate per pickole/opening (gpm)4gpm # of pickholes/openings1 Total flowrate (gpm)4gpm Duration of spill (minutes)243minutes Total flow (gallons)856gallons 	Debris-General		Gravity Mainline		Vitrified Clay		57	It was estimated that approximately 856 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the system.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		On Tuesday, February 6, 2024 9:28 AM, the Clean Water Conveyance Division (CWCD) received a report of a sewer trouble at 1910 South Shenandoah Street (TG 632-H5). A CWCD crew was immediately dispatched to the incident location and determined that 10-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 1:31 PM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.  It was estimated that approximately 856 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the system. 	Inspected Sewer Using CCTV to Determine Cause		On Tuesday, February 6, 2024 9:28 AM, the Clean Water Conveyance Division (CWCD) received a report of a sewer trouble at 1910 South Shenandoah Street (TG 632-H5). A CWCD crew was immediately dispatched to the incident location and determined that 10-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 1:31 PM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.  It was estimated that approximately 856 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the system. 		02/06/2024 13:31	On Tuesday, February 6, 2024 9:28 AM, the Clean Water Conveyance Division (CWCD) received a report of a sewer trouble at 1910 South Shenandoah Street (TG 632-H5). A CWCD crew was immediately dispatched to the incident location and determined that 10-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 1:31 PM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.  It was estimated that approximately 856 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the system. 		None At This Time.	02/06/2024 13:31														None At This Time.	The Pipeline Is On A Quarterly Maintenance Schedule, The Trap Structure Maintenance Hole Has Been Repaired.	The Pipeline Is On A Quarterly Maintenance Schedule, The Trap Structure Maintenance Hole Has Been Repaired.	The Pipeline Is On A Quarterly Maintenance Schedule, The Trap Structure Maintenance Hole Has Been Repaired.	The Pipeline Is On A Quarterly Maintenance Schedule, The Trap Structure Maintenance Hole Has Been Repaired.	None At This Time.	The Pipeline Is On A Quarterly Maintenance Schedule, The Trap Structure Maintenance Hole Has Been Repaired.	On Tuesday, February 6, 2024 9:28 AM, the Clean Water Conveyance Division (CWCD) received a report of a sewer trouble at 1910 South Shenandoah Street (TG 632-H5). A CWCD crew was immediately dispatched to the incident location and determined that 10-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 1:31 PM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.  It was estimated that approximately 856 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the system. 	None At This Time.	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	893340	1.2	Amended	Kent Vian	Asst. Deputy Director	07-FEB-24	15-FEB-24	15-FEB-24	Category 1 Spill	NOT# 40201062246 AT 825 N. HARBOR DR.	02/06/2024 13:00	02/06/2024 13:00	02/06/2024 12:00	02/06/2024 13:02	24-0746	22-MAR-24	SPILL ORIGINATION WAS FROM MULTIPLE LOCATIONS ALONG HARBOR DR AND A JUNCTION STRUCTURE BELOW THE I5 & I8 FREEWAY.	32.76025	-117.20408	Inside Building or Structure; Manhole	N/A	N/A	77050	MANHOLES 2710 N. HARBOR DR.                  10255357 I-8 AND I-5 INTERCHG                10205121  LATERALS 700 W. HARBOR DR.                   10661724 4236 VENUS ST.                          10970758 1205 PACIFIC HWY.                     10638294	Y	THE SEWER HIT A STORM DRAIN AND THE OUTFALL WAS SAN DIEGO BAY. THE SPILL ALSO ENTERED THE SAN DIEGO RIVER.	0	0	THE DISCHARGE POINT WAS INTO THE SAN DIEGO BAY AND SAN DIEGO RIVER.	72650	4400	Building or Structure; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface	N/A	MULTIPLE SPILL APPEARANCE POINTS, INCLUDING INSIDE BUILDINGS AT 700 W. HARBOR DR., 285 J ST., AND 1205 PACIFIC HWY. THERE WERE ADDITIONAL SPILL APPEARANCE POINTS COMING FROM A MANHOLE IN FRONT OF 700 W. HARBOR DR. AND A JUNCTION STRUCTURE LOCATED BELOW THE I-5 AND I-8 JUNCTION.	Y	32.71151	-117.1696	32.71169	-117.16952	32.71809	-117.17069	32.75961	-117.20416	02/06/2024 14:20	VISUAL CALCULATED METHOD.	THE ASSUMPTION OF SPILL START TIME WAS WHEN CREWS HAD RECEIVED CALLS THAT THE BUILDINGS WERE FLOODING AND VISUAL OBSERVATIONS OF THE SPILL.	Flow Exceeded Capacity (Separate Collection System Only); Natural Disaster (specify below); Rainfall Exceeded Design, I and I (Separate Collection System Only)	THE CITY OF SAN DIEGO SUFFERED A HISTORIC RAIN EVENT ON FEBRUARY 5 AND 6. THE EVENT DROPPED A HISTORIC AMOUNT OF RAIN OVER TWO DAYS ALONG THE SAN DIEGO RIVER WATERSHED, CAUSING SEVERE INFLOWS INTO THE WASTEWATER CONVEYANCE SYSTEM, OVERWHELMING THE SYSTEM AND CAUSING OVERFLOWS.	Lower Lateral; Manhole; Other (specify below)	SYSTEM-DESIGNED OVERFLOW STRUCTURES TO RELIEVE THE SYSTEM OF SURCHARGE WHEN INFLOW EXCEEDS SYSTEM DESIGN CAPACITY.	Concrete	N/A	60	THE IMPACTS OF THE SPILL WERE TO SURFACE WATERS�NO OTHER ADVERSE EFFECTS NOTED AT THIS TIME.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	SPILL RESPONSE ACTIVITIES WERE TO MONITOR THE SEWER RELEASE FROM THE OVERFLOW STRUCTURES, MANHOLES AND LATERALS UNTIL THE CATASTROPHIC RAIN EVENT ENDED AND THE SURCHARGED COLLECTION SYSTEM CAUGHT UP TO CONVEY FLOW. CLEAN-UP EFFORTS WERE CONDUCTED ON 2/07/2024 USING VACUUM TRUCKS AND RESTORATION CONTRACTORS.	Other (specify below)	WAITED FOR THE CATASTROPHIC RAIN EVENT TO END AND THE SURCHARGED COLLECTION SYSTEM TO CATCH UP.	LIMIT SOURCES OF I & I TO PREVENT THE SYSTEM FROM BEING OVERWHELMED BY SEVERE RAIN EVENTS.	TBD	02/06/2024 18:00	CATASTROPHIC RAIN EVENT	N	N/A		SAN DIEGO BAY, PACIFIC OCEAN.	Ocean; River	N/A	THE PACIFIC OCEAN IS ONE OF SEVEN OCEANS THAT COVER NEARLY THREE-FOURTHS OF THE SURFACE OF THE EARTH. 	NO KNOWN IMPACTS TO AQUATIC LIFE.	Public Closure	N/A	DEPARTMENT OF ENVIORNMENTAL HEALTH	3	N	Y	SEE ATTACHED	SEE ATTACHED									N/A	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	893342	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		04-APR-24	04-APR-24	Monthly Category 3 Spill	431 West 7th Street	02/06/2024 15:59	02/06/2024 17:46	02/06/2024 15:59				The initial crew arrived at 5:46 P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.046549	-118.254859	Inside Building or Structure			59	Sanitary Sewer Overflow 	N	None.	0				59	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	34.046549  118.254859	Y	34.046549	-118.254859							02/06/2024 18:30	The SSO volume was estimated utilizing a standardized template which calculates the volume by using dimensional analysis.  	Volume of a spill contained in a rectangular area Length40feet Width15feet Depth0.125inches0.0104feet  6.25ft347gallons  Volume of a spill contained in a rectangular area Length10feet Width15feet Depth0.125inches0.0104feet  1.56ft312gallons 	Debris-General		Gravity Mainline		Vitrified Clay		113	It was estimated that approximately 59 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.  	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		On Tuesday, February 6, 2024 at 3:59 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 431 West 7th Street (TG 634-E4). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 6:30 PM. The cause of the blockage was debris accumulation. All necessary clean-up was then performed.  It was estimated that approximately 59 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	Inspected Sewer Using CCTV to Determine Cause		Pipeline Will Be Placed On A Quarterly Maintenance Schedule, CCTV Revealed Some Defects, That Will Be Addressed By The City On-Call Contractor.		02/06/2024 18:30	On Tuesday, February 6, 2024 at 3:59 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 431 West 7th Street (TG 634-E4). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 6:30 PM. The cause of the blockage was debris accumulation. All necessary clean-up was then performed.  It was estimated that approximately 59 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   		Not At This Time.	02/06/2024 18:30														None At This Time.	Pipeline Will Be Placed On A Quarterly Maintenance Schedule, The Pipeline Is Also Scheduled For Repairs.	Pipeline Will Be Placed On A Quarterly Maintenance Schedule, CCTV Revealed Some Defects, That Will Be Addressed By The City On-Call Contractor.	Pipeline Will Be Placed On A Quarterly Maintenance Schedule, CCTV Revealed Some Defects, That Will Be Addressed By The City On-Call Contractor.	Pipeline Will Be Placed On A Quarterly Maintenance Schedule, CCTV Revealed Some Defects, That Will Be Addressed By The City On-Call Contractor.	Not At This Time.	Pipeline Will Be Placed On A Quarterly Maintenance Schedule, CCTV Revealed Some Defects, That Will Be Addressed By The City On-Call Contractor.	On Tuesday, February 6, 2024 at 3:59 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 431 West 7th Street (TG 634-E4). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 6:30 PM. The cause of the blockage was debris accumulation. All necessary clean-up was then performed.  It was estimated that approximately 59 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	Not At This Time.	
5S	5SSO11028	Active	SMD No. 1 CS	Placer Cnty Dept of Facility Services	893343	1.2	Certified	Robin Mahoney	Utilities Program Manager		07-FEB-24	07-FEB-24	Category 2 Spill	Manhole in front of 1486 Grass Valley Hwy, Auburn, CA	02/05/2024 10:23	02/05/2024 10:45	02/05/2024 10:22	02/05/2024 12:13	24-0692		Wastewater overflowing from manholes onto asphalt then onto gravel and dirt. See photographs: MH1_20240205_105429 & MH2_20240205_110029	38.92559	-121.08413	Manhole			5707	See photographs: Spill_20240205_110401 Spill_20240205_110407 Spill_20240205_111600	N						5510	Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		Wastewater overflowing from manholes AB4-13 and AB4-131 onto asphalt then onto gravel and dirt in front of 1486 Grass Valley Hwy, Auburn, CA.	Y	38.92559	-121.08413							02/05/2024 11:10	The spill was calculated with the formula L X W X D X 7.48. The recovered amount is a reasonable estimate calculated by residual loss on a paved surface and absorption loss on a dirt area.                        	Spill start time: eye witness account Spill end time: Operator onsite documented end time	Fats, Oil and Grease (FOG); Other (specify below)	Excessive flow	Gravity Mainline		Polyvinyl Chloride (PVC)		50	Wastewater overflowing from manholes onto asphalt then onto gravel and dirt.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Vacuum truck recovery, wash down water, and clean-up of debris including the FOG in the downstream section of line.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Inspected sewer using CCTV to determine cause. Cleaned the line and will return again to inspect and clean as needed. Adjusted schedule of preventive maintenance to inspect and clean the section of line with FOG blockage more frequently, as needed. Previous schedule was every 3 months, new schedule is every 2 months. If excessive FOG is noted at 2 month interval, we will adjust the schedule to every one month. We will perform FOG outreach to all residential and commercial customers in the upstream sewer shed within the next 2 months.	Adjusted schedule to preventative maintenance plan for more frequent inspections and cleaning of this particular section of line, as needed. Previous schedule was every 3 months, new schedule is every 2 months. If excessive FOG is noted at 2 month interval, we will adjust the schedule to every one month. We will perform FOG outreach to all residential and commercial customers in the upstream sewer shed within the next 2 months.	02/05/2024 12:10	Arrived onsite and traced spill to extent of ponding; determined the extent of ponding was entirely contained on land and did not enter a drainage system tributary to a surface water. After initial containment of the spill, CCTV of the downstream segments of the gravity sewer line was performed. Based on CCTV results and observed flows, the cause was determined to be a combination of FOG in the downstream gravity section of line and excessive flows due to inflow and infiltration associated with the heavy storm event. 	N												Y													
4	4SSO10491	Active	Terminal Island CS	Los Angeles City Bureau of Sanitation	893346	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		23-FEB-24	23-FEB-24	Category 1 Spill	1111 West L Street	02/05/2024 14:34	02/05/2024 18:26	02/05/2024 14:34	02/05/2024 20:06	24-0716	20-MAR-24	Initial  crew arrived at 6:26 PM and discovered that the 18-inch main line sewer serving the referenced area was spilling due to a broken pipeline. CWCD crews created a berm to contain the overflow and a City Contractor was mobilized, On Tuesday, February 6, 2024, City contractor bypassed the sewer system and the backup ceased at 11:40 PM. The Contractor will make all necessary repairs. All the necessary clean-up steps were performed.	33.786171	-118.276502	Lateral Clean Out (Private); Manhole		Manhole       33.786133,-118.276656 Manhole       33.786479,-118.273644	289187		Y		0	0		61231	227956	Drainage Conveyance System		ON MONDAY, FEBRUARY 5, 2024, AT 2:34 PM, LA SANITATION AND ENVIRONMENT�S (LASAN) CLEAN WATER CONVEYANCE DIVISION (CWCD) RECEIVED A REPORT OF A FLOODED STREET AT 1111 WEST L STREET (TG 794-C5). A CWCD CREW ARRIVED AT THE INCIDENT LOCATION AND DETERMINED THAT THE 18-INCH MAIN LINE SEWER SERVING THE REFERENCED AREA WAS SPILLING DUE TO A BROKEN PIPELINE. CWCD CREWS CREATED A BERM TO CONTAIN THE OVERFLOW AND A CITY CONTRACTOR WAS MOBILIZED, ON TUESDAY, FEBRUARY 6, 2024, CITY CONTRACTOR BYPASSED THE SEWER SYSTEM AND THE BACKUP CEASED AT 11:40 PM. THE CONTRACTOR WILL MAKE ALL NECESSARY REPAIRS. ALL THE NECESSARY CLEAN-UP STEPS WERE PERFORMED.  IT WAS ESTIMATED THAT APPROXIMATELY 289,187 GALLONS OF SEWAGE BACKED OUT OF THE SEWER AS A RESULT OF THE BLOCKAGE. THE CREW WAS ABLE TO ESTABLISH PARTIAL CONTAINMENT. OF THE AMOUNT RELEASED, 227,956 GALLONS WAS RECOVERED AND RETURNED TO THE SYSTEM, AND THE REMAINING 61,231 GALLONS ENTERED AN ADJACENT CITY OF LOS ANGELES OWNED CATCH BASIN AT 1115 WEST L	Y	-118.276502	33.786171							02/06/2024 11:40	SPILL FLOWRATE BASED ON FLOW FROM AROUND THE RING AND MH COVER       DIAMETER OF MH 27 INCHES HEIGHT OF WATER AROUND COVER 1  GAP BETWEEN FRAME AND COVER .125 DURATION OF SPILL 3,965 MINUTES VOLUME 182,953 GALLONS  SPILL FLOWRATE BASED ON FLOWOUT OF PICKHOLE DIAMETER OF PICKHOLE 0.75 INCHES HEIGHT OF WATER OUT OF PICKHOLE 1  # OF PICKHOLES 1 DURATION OF SPILL 3,965 MINUTES VOLUME 8,063 GALLONS   SPILL FLOWRATE BASED ON FLOWOUT OF CLEANOUT DIAMETER OF CLEAN OUT 3.75  HEIGHT OF WATER OUT OF PICKHOLE 1  # OF CLEAN OUTS 1 DURATION OF SPILL 1,931  MINUTES VOLUME 98,171 GALLONS	SPILL FLOWRATE BASED ON FLOW FROM AROUND THE RING AND MH COVER DIAMETER OF MH 27 INCHES  SPILL FLOWRATE BASED ON FLOWOUT OF CLEANOUT DIAMETER OF CLEAN OUT	Pump Station Failure - Controls		Gravity Mainline		Concrete		99	IT WAS ESTIMATED THAT APPROXIMATELY 289,187 GALLONS OF SEWAGE BACKED OUT OF THE SEWER AS A RESULT OF THE BLOCKAGE. THE CREW WAS ABLE TO ESTABLISH PARTIAL CONTAINMENT. OF THE AMOUNT RELEASED, 227,956 GALLONS WAS RECOVERED AND RETURNED TO THE SYSTEM, AND THE REMAINING 61,231 GALLONS ENTERED AN ADJACENT CITY OF LOS ANGELES OWNED CATCH BASIN AT 1115 WEST L STREET, WHICH IS TRIBUTARY TO PACIFIC OCEAN.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		 THE CREW WAS ABLE TO ESTABLISH PARTIAL CONTAINMENT. OF THE AMOUNT RELEASED, 227,956 GALLONS WAS RECOVERED AND RETURNED TO THE SYSTEM, AND THE REMAINING 61,231 GALLONS ENTERED AN ADJACENT CITY OF LOS ANGELES OWNED CATCH BASIN AT 1115 WEST L STREET, WHICH IS TRIBUTARY TO PACIFIC OCEAN. 	Adjusted Schedule/Method of Preventive Maintenance; Repaired Facilities or Replaced Defect		The CCTV inspection revealed defects. In addition, an Emergency On-Call Contractor has started the rehabilitation to the lower section of the 18-inch at 1111 West L Street. This same contractor is in the process of cleaning the reaches on the pipeline where the spill occurred in preparation for other repairs, identified in the CCTV of the affected area	As part of our quality assurance program, the sewer system location where the backup occurred is being televised by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. 	02/05/2024 11:40	The cause of the SSO was attributed to a broken pipeline that was exacerbated by large amounts of debris inside the pipeline.	N			Pacific Ocean	Ocean		Pacific Ocean	None at this time.	Other (specify below)	None at the time of the event.	Beaches and Harbor	0	Y	Y	1111 W L Street	Total Coliforms 4.1E+07E. coli 9.3E+06Enterococcus 6.6E+05 										
2	2SSO11533	Active	SLAC National Accelerator Laboratory CS	US Dept of Energy	893348	1.2	Certified	Josephine Folger	Civil engineer	07-FEB-24	16-FEB-24	16-FEB-24	Category 1 Spill	Building 120 Lift Station	02/04/2024 18:30	02/04/2024 18:30	02/04/2024 18:30		-		Building 120 Lift Station	37.418611	-122.201573	Inside Building or Structure; Pump Station		Due to a site-wide electrical power outage caused by a storm, the lift station lost power. The lift station first backflowed into the bathroom cleanout inside the nearest building. Personnel then placed a plug on the bathroom cleanout.   Shortly thereafter the lift station overflowed outside onto the pavement. Personnel were already at the scene when the lift station began to overflow and took immediate action to protect the downgradient storm drain. 	50	During the storm, the spill travelled from the lift station approx. 60 feet along a curb to a small 12-inch culvert, where it entered into SLAC�s storm drain system. The spill was promptly isolated with sandbags, but not before approx. 50 gallons had entered the culvert.   Because this event occurred after dark and it was raining, photos were limited. Attached are photos taken the next day. A map is also attached. 	Y	The spill entered at a 12� culvert, ID 34D-15. From 34D-15, stormwater is conveyed through a series of underground pipes that are routed through a hydrodynamic separator to remove sediments before the stormwater is released to the IR-6 drainage channel, which is about 1,800 feet south. 	0	0	This stormwater conveyance system daylights at the IR-6 drainage channel after traveling through a hydrodynamic separator to remove sediments. 	50	0	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		During the storm, the spill travelled from the lift station approx. 60 feet along a curb to a 12-inch culvert, where it entered into SLAC�s storm drain system.	Y	37.418431	-122.20156							02/04/2024 18:45	The quantity that entered the storm drain system was estimated based upon a visual estimate of how fast the water was flowing out of the lift station and the amount of time the lift station had been overflowing before responders were able to isolate the spill. 	Timestamps from photos, calls, and texts sent during the event. 	Natural Disaster (specify below); Pump Station Failure - Power	A storm event caused the entire SLAC facility to lose power. Due to a repair in progress, rainwater seepage from a sump was siphoned into the lift station when the power went out. This created additional flow into the lift station, eventually leading to an overflow.   Personnel were already at the location and acted immediately to protect storm drains and isolate the flow. 	Pump Station - Power		Other (specify below)	The failure occurred at a lift station, not in a pipe. The lift station vault is made of wrapped steel. 	40	None	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Responders were initially called to the area due to an indoor bathroom cleanout overflowing. They deployed an air plug in the bathroom cleanout and mopped up the bathroom floor. Shortly after the bathroom cleanout was plugged, the lift station began to overflow. Personnel immediately sandbagged off the storm drain inlet and utilized buckets to manually return water into the sanitary sewer.   Simultaneously, the responders were investigating why the lift station water levels continued to increase. They shortly discovered a siphon from the nearby sump under repair and were able to kink the hose to prevent additional rainwater seepage from entering the lift station.   An emergency generator was also deployed to restore power to the lift station in less than 30 minutes. 	Other (specify below)	Power was restored to the lift station in less than 30 minutes.   The pre-existing sump pump repair project that caused the siphon of rainwater seepage into the lift station was completed on 2/14. Should a power outage occur in the future, the sump water will not continue to flow into the lift station and will not cause the lift station to overflow. 	See 10a for description of corrective actions. See 10c for timeline of corrective actions. 	Power restored to lift station � 2/4/24 Repair on sump pump completed � 2/14/24 	02/04/2024 19:00	The responders on site were able to identify the cause of the spill within minutes. No additional investigation was necessary.   The spill was caused by the combination of two events. First, a major storm caused the site to lose power, including the lift station. Second, a repair-in-progress at a sump that feeds into the lift station led to a siphon from a temporary hose. Under normal conditions, the sump would be pumped into the lift station and would not continue to fill the lift station during a loss of power.  	N			San Francisquito Creek	Stream/Creek		The spill entered at a 12� culvert, ID 34D-15. From 34D-15, stormwater is conveyed through a series of underground pipes that are routed through a hydrodynamic separator to remove sediments before the stormwater is released to the IR-6 drainage channel.   From the IR-6 drainage channel, stormwater eventually flows to San Francisquito Creek. San Francisquito Creek flows from west to east roughly parallel to the SLAC southern and eastern borders. Adjacent leaseholders separate SLAC property from the creek along SLAC�s entire boundary. At no place does SLAC discharge directly to the creek.	None	Other (specify below)	None	None	0	N	N												
8	8SSO10565	Active	Corona City CS	Corona City DWP	893350	1.1	Certified	Aftab Hussain	Maintenance Manager		19-MAR-24	19-MAR-24	Monthly Category 3 Spill	2227 Aviation Drive	02/06/2024 08:35	02/06/2024 08:50	02/06/2024 08:30				Spill appearance point occurred at manhole #1558, at 2227 Aviation Drive. 	33.89601	-117.60776	Manhole			193	Spill was observed to be puddling around the sewer manhole lid. The spread of spill extended approximately 10' south and 20' west of the manhole lid and had only reached land. Most of the area was wet due to constant rainfall. About 2 inches of rain fell on 2/5/24 and about 1 inch fell on 2/6/24 (CIMIS). Photos attached.	N						193	Paved Surface		Spill was observed to be puddling around the sewer manhole lid. The spread of spill extended approximately 10' south and 20' west of the manhole lid and had only reached land on paved surface. Most of the area was wet due to constant rainfall. About 2 inches of rain fell on 2/5/24 and about 1 inch fell on 2/6/24 (CIMIS).	Y	33.89601	-117.60776	33.89601	-117.6078	33.89603	-117.6078	33.89603	-117.60773	02/06/2024 09:25	Spill volume estimations were calculated based on visual observations of flow and estimated spill duration. 	Spill start time based on initial notification to the Department by a streets maintenance employee.	Other (specify below)	Rain intrusion from upstream manholes.	Manhole		Ductile Iron		25	Spill observed to have impacted the area of the sewer manhole lid.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Returned All Spill to Sanitary Sewer System		The UD was notified by a streets maintenance employee. Staff responded to the location, identified the problem, brought vacuum trucks with storage tanks to recover the spill and remove the flow until the pump station was back in service. The pump station was taken out of service during the potential threat of flooding in the area.	Repaired Facilities or Replaced Defect		Temporarily plugged manhole lids. Special lids will be ordered to seal them and prevent water intrusion in upstream manholes.		02/06/2024 14:00	The Airport Lift Station was placed out of service due to potential flooding in the area. Rain infiltrated a couple of sewer manholes upstream of the spill location. The sewer main filled with rainwater and began to exit Manhole #1558 on 2227 Aviation Drive.		No investigation. Spill was due to stormwater infiltration due to constant rainfall.	02/06/2024 14:00														N/A	Special lids will be ordered to seal them and prevent water intrusion in upstream manholes.	No current changes to schedule. Sewer lids to be replaced by sealed lids.	To replace upstream sewer lids with special solid lids to prevent water infiltration. 	Upstream manholes were inspected, lids to be replaced. Temporary lid plugs added to upstream manholes.	N/A	Photos of temporary plugs attached.	No current modifications to spill response.	No investigation. Spill was due to stormwater infiltration due to constant rainfall.	
5S	5SSO10910	Active	Copper Cove CS	Calaveras Cnty Water District	893351	1.2	Certified	Damon Wyckoff	Director Of Operations	07-FEB-24	07-FEB-24	07-FEB-24	Category 1 Spill	462 Sunrise Road	02/07/2024 12:00	02/07/2024 12:00	02/06/2024 14:00	02/07/2024 13:50	24-0789		CCWD's Lift Station 6's Automatic Transfer Switch Failed during a routine transfer to generator for testing. Lift Station was without power for approx. 20 hrs. Lift Station 4 Pumps to Lift Station 6 at a rate of 75 gpm with a run time of 5 minutes per pump run. Reviewed the amount of pump runs from the time of routine generator testing fail (2-6-2024 @ 2pm) to the time the problem was found (2-7-2024 @ 12pm). There were 31 pump runs - estimated spill volume of  11,625 gallons = 75 gallons per minute 31 times (pump Runs) for 5 minutes each time.	37.901997	-120.583773	Lateral Clean Out (Public)			11625	The Spill existing the CCWD cleanout at 462 Sunrise Road and flowed directly into a storm drain and into Lake Tulloch. The residence at 462 Sunrise Road is directly above Lake Tulloch. The Lake is essentially the backyard of the home.	Y	Conventional storm drain at a residence.	0	0	Photographs Depict -  -District Cleanout in the Property Driveway -Storm Drain Inlet in the Property Driveway - Storm Drain Outlet into Lake Tulloch	11625	0	Surface Water		CCWD's Lift Station 6's Automatic Transfer Switch Failed during a routine transfer to generator for testing. Lift Station was without power for approx. 20 hrs. Lift Station 4 Pumps to Lift Station 6 at a rate of 75 gpm with a run time of 5 minutes per pump run. Reviewed the amount of pump runs from the time of routine generator testing fail (2-6-2024 @ 2pm) to the time the problem was found (2-7-2024 @ 12pm). There were 31 pump runs - estimated spill volume of  11,625 gallons = 75 gallons per minute 31 times (pump Runs) for 5 minutes each time. The volume of Lift Station 6 overflowed out of a CCWD owned Lateral at 462 Sunrise Road and discharged into a storm drain inlet who's outlet is right into Lake Tulloch.	Y	37.901997	-120.583773							02/07/2024 12:00	 Lift Station 4 Pumps to Lift Station 6 at a rate of 75 gpm with a run time of 5 minutes per pump run. Reviewed the amount of pump runs from the time of routine generator testing fail (2-6-2024 @ 2pm) to the time the problem was found (2-7-2024 @ 12pm). There were 31 pump runs - estimated spill volume of  11,625 gallons = 75 gallons per minute 31 times (pump Runs) for 5 minutes each time.	SCADA Pump Runs and Runtime Duration	Pump Station Failure - Controls; Pump Station Failure - Mechanical; Pump Station Failure - Power		Lower Lateral		Polyvinyl Chloride (PVC)		20	The volume flowed directly into Lake Tulloch with provides the source of supply for drinking water for the Copper Cove Water Treatment Plant.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified	Cleaned any standing water and debris using rakes and shovels. Cleaned the driveway. Notified the GM of the HOA for the property as it is a vacation home. Notified Calaveras Public Health, OES, DDW, and CVRWQCB Enforcement	Cleaned any standing water and debris using rakes and shovels. Cleaned the driveway. Notified the GM of the HOA for the property as it is a vacation home. Notified Calaveras Public Health, OES, DDW, and CVRWQCB Enforcement	Other (specify below); Plan Rehabilitation or Replacement of Sewer	Lift Station is currently slated to be rehabilitated this Calendar year. The District is also working to improve its Uninterruptable Power Source (UPS) operation time	Lift Station is currently slated to be rehabilitated this Calendar year. The District is also working to improve its Uninterruptable Power Source (UPS) operation time	This Lift Station will be completely rehabilitated by the end of 2024	02/07/2024 15:02	CCWD's Lift Station 6's Automatic Transfer Switch Failed during a routine transfer to generator for testing. Lift Station was without power for approx. 20 hrs. Lift Station 4 Pumps to Lift Station 6 at a rate of 75 gpm with a run time of 5 minutes per pump run. Reviewed the amount of pump runs from the time of routine generator testing fail (2-6-2024 @ 2pm) to the time the problem was found (2-7-2024 @ 12pm). There were 31 pump runs - estimated spill volume of  11,625 gallons = 75 gallons per minute 31 times (pump Runs) for 5 minutes each time. The volume of Lift Station 6 overflowed out of a CCWD owned Lateral at 462 Sunrise Road and discharged into a storm drain inlet who's outlet is right into Lake Tulloch.	N			Lake Tulloch	Reservoir		Lake Tulloch is a Reservoir fed via the North Fork of the Stanislaus River and New Melones Reservoir in Calaveras and Tuolumne Counties	None observed	Restricted Public Access		The Poker Flat Homeowners Association	0	N	Y	Samples were taken at the point of inlet and  upstream  and  downstream  from the Point of inlet	Fecal Coliform										
4	4SSO11388	Active	County Sanitation District Joint Outfall CS	Los Angeles Cnty Sanitation Districts	893353	1.2	Amended	Andre Schmidt	Wastewater Collection Systems Manager	07-FEB-24	20-FEB-24	20-FEB-24	Category 1 Spill	District #2 Main Trunk	02/05/2024 00:22	02/05/2024 00:52	02/04/2024 21:45	02/05/2024 01:41	24-0678	21-MAR-24	The spill originated from LACSD�s District #2 Main Trunk at MH 02 2415 located at coordinates 34�0�34.2�N, 118�9�30.2�W, in the intersection of South Atlantic Boulevard and Telegraph Road in the City of Commerce. See attachment for photo.	34.0095135	-118.1583781	Manhole			43263	The spill extended approximately 50 feet west and 160 feet north from MH 02 2415, along the west curb of South Atlantic Boulevard until reaching the storm water catch basin located under the railroad bridge crossing over South Atlantic Boulevard. See attachment for photo.	Y	The spill traveled above ground for approximately 160 feet before entering the storm drain system on the west side of South Atlantic Boulevard. The wastewater flowed through underground storm drains approximately 14,900 feet (2.8 miles) before entering Gage Drain, where it traveled approximately 13,600 feet (2.6 miles) before reaching the Los Angeles River. See attachment for photo.	0	43263	The storm water system conveyed the spill volume into the Los Angeles River, discharging from the east side of the channel approximately 1,100 feet south of the intersection of Southern Avenue and West Frontage Road. See attachment for photo.	43263	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		Destination 1: Storm water catch basin Destination 2: Discharge location from storm water conveyance system to the Gage Drain Destination 3: Discharge location from the Gage Drain into the Los Angeles River	Y	34.009918	-118.158757	33.974904	-118.157868	33.942115	-118.173824			02/05/2024 02:22	See attachment	See attachment	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Vitrified Clay		25	See attachment	Y	Cleaned Up (specify below)		See attachment	Other (specify below)	LACSD is evaluating the best way to prevent future spills at this location including diversion of flows from the spilling sewer to other upstream sewers and/or modification of MH 02 2415 to seal the manhole so that it does not spill during surcharge events.	See responses to questions 10a and 10c.	Corrective action will be completed prior to the start of the 2024/25 rainy season.	02/06/2024 15:30	See attachment	N			Los Angeles River	River		Surface water channel	None	Public Closure	Long Beach Health implemented beach closures on February 5, 2024, for all Long Beach side beaches. The Granada Avenue and 72nd Place locations reopened to the public on February 10, 2024. All other beach side locations, except 5th Place and Coronado, reopened on February 11, 2024, and the 5th Place and Coronado Avenue locations reopened on February 15, 2024.	Long Beach Health	10	N	Y	Samples were collected at the following coordinates: Sample 1: 34.009513, -118.158378 Sample 2: 33.994634, -118.182023 Sample 3: 33.9499806, -118.1730679 Sample 4: 33.9304827, -118.1759774 Sample 5: 33.9038140, -118.1822367	Samples were tested for Total Coliform, Fecal Coliform, Enterococcus, E. Coli and ammonia.										
4	4SSO11423	Active	Long Beach Water Dept. CS (SSO program)	Long Beach City, Water Dept	893354	1.2	Certified	Jennifer Rojas	Senior Director, Field Customer Service 		28-FEB-24	28-FEB-24	Monthly Category 3 Spill	3800 E. 11th Street. Long Beach CA	01/28/2024 19:40	01/28/2024 20:11	01/28/2024 18:52				The spill originated at the City sewer manhole and traveled down the street curb and gutter into the storm drain catch basin.	33.78063	-118.148	Manhole			181	The spill originated at the city sewer manhole N12-SMH-032. From there, it traveled down the street curb and gutter into the conveyance system. The quick response of the cleanup crew promptly contained the spill.	Y	The spill exited the system and traveled down the street 591 feet into the conveyance system. Approximately 60 gallons reached the storm drain catch basin. it was fully recovered and cleaned up by Ocean Blue Contractors.	60				181	Drainage Conveyance System; Street/Curb and Gutter (2 3)		A manhole in the city sewer system spilled, causing wastewater to be released onto the street. The wastewater flowed down the curb and gutter and entered the storm drain catch basin. In order to prevent further contamination, sandbags were strategically positioned to contain the spill.	Y	33.78061	-118.14607							01/28/2024 20:41	The spill was calculated using the formula (Length X Width X Depth + (Area X 7.48), where the dimensions were 591 feet (Length) X 0.33 feet (Width) X 0.083 (Depth) and the conversion factor of 7.48 to convert the result to gallons = 121 gallons. Adding approximately 60 Gallons recovered from the Conveyance system, for a total of 181 gallons.	Upon arrival did not see spill enter the storm drain catch basin. used a gallon of Lysol to time the flow rate from the sewer manhole to the storm drain catch basin.  It was determined that the spill started 48 minutes at least before the notification to the Long Beach Utilities Department.	Collection System Maintenance Failure (specify below); Damage by Others Not Related to Collection System Construction/Maintenance; Debris-Rags		Gravity Mainline		Vitrified Clay		99	A sewer spill occurred, reaching the storm drain and gutter. The impact on the community was minimal, and the spill was promptly cleaned up from the street and conveyance system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		1. Spill Containment: At the city sewer manhole sewage overflowed from the system, resulting in approximately 181 gallons of sewage spill. Containment measures were implemented to prevent further spread, including deploying barriers to contain the spill within the affected area. 2. Cleanup Efforts: Ocean Blue Environmental began cleanup operations for the spill in the alley. The 181 gallons of sewage were cleaned up using a pressure washer and vacuum truck.	Inspected Sewer Using CCTV to Determine Cause		The pipe segment has undergone thorough hydro-jetting. We will continue with our preventive maintenance program and ensure that our staff follows proper cleaning procedures.		01/28/2024 22:58	On 1/30/2024, a post-CCTV inspection was conducted to investigate the cause of the main line stoppage. The inspection revealed that the stoppage was caused by debris - rags. In order to resolve the issue, a thorough hydro-jetting process was carried out on the pipe segment to remove it and ensure the normal flow of the wastewater.		There is no ongoing Investigation.	01/30/2024 09:39														The Long Beach Health Department was notified.	We have a 2-year Prevented Sewer Maintenance Program to ensure the long-term health and functionality of our sewer system.	We will proceed with our preventive maintenance program for this pipe segment and ensure that the cleaning is completed according to the schedule.	There is no planned rehabilitation or replacement of this segment. 	CCTV Inspections were conducted in order to identify the cause and location of the debris blockage. Once the cause and location were determined, appropriate measures were taken to ensure a thorough cleaning of the blockage.	None Planned.	No modifications have been made to the system or operating procedures. The pipe segment was inspected to determine the cause of the stoppage.	We will continue following our spill response procedures for containment and clean-up efforts.	There is no ongoing Investigation.	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	893356	1.2	Certified	John J. Hough	San Dist. Superintendent	07-FEB-24	20-FEB-24	20-FEB-24	Category 1 Spill	338629	02/06/2024 18:48	02/06/2024 19:23	02/06/2024 16:00		-		See attached Spill Map.	38.6725	-121.2925	Lateral Clean Out (Public)			52	See attached Spill Map.	Y	See attached Spill Map.	0	0	See attached Spill Map.	43	50	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See attached Spill Map.	Y	38.6725	-121.2925	38.672	-121.2925	38.67024	-121.29262	38.67477	-121.30118	02/06/2024 19:23	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Debris-General		Lower Lateral		Cast Iron; Vitrified Clay		58	No observed impact of the spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	Notified City of Citrus Heights	See Attached Description of Spill Event	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		SacSewer inspected the lower lateral with CCTV on February 6, 2023. Based on the findings, SacSewer will repair the lower lateral.	Target finish date of lower lateral repair is March 12, 2024.	02/07/2024 04:20	See Attached Description of Spill Event	N			Brooktree Creek	Stream/Creek		Concrete lined channel with light flow and areas of ponding.	No observed impacts to aquatic life	Other (specify below)	No public access impact. SacSewer posted a contamination warning sign during recovery efforts.	N/A	0	N	N												
4	4SSO10423	Active	Rolling Hills City Estates CS	Rolling Hills Estates City	893357	1.1	Certified	Robert Swartz	Sr. CE		29-FEB-24	29-FEB-24	Monthly Category 3 Spill	1599 (961 Silver Spur Road, Rolling Hills Estates)	02/01/2024 13:13	02/01/2024 14:30	02/01/2024 08:00				CSMD Map Sheet No. 1599 MMS No. 8645681	33.76994	-118.36603	Inside Building or Structure			100	The estimated spill entered through the residents' home toilet.	N						100	Building or Structure		The estimated spill entered through the residents' home toilet.	N									02/01/2024 11:30	Visual or Eyeball Method.	The start time is obtained from the reporting party, the end time is when the crew clears the obstruction, and the overflow stops.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Other (specify below)	In occupants' home.	Vitrified Clay		67	N/A	Y	Other Enforcement Agency Notified		Upon arrival, there was no sign of overflowing manhole and water had been removed from the resident by a private cleaning company. We hydro-cleaned the mainline between manholes 56 and 57.  The mainlines were found down and running. 	Other (specify below)	Inspect & monitor condition. The mainline will be televised to determine if further attention is needed due to storm infiltration.  The homeowner was given a backwater valve.	The mainline will be televised to determine if further attention is needed due to storm infiltration.		02/01/2024 15:15	The mainline will be televised to determine if further attention is needed due to storm infiltration.		The mainline will be televised to determine if further attention is needed due to storm infiltration.	04/01/2024 12:00														N/A	N/A	The mainline will be televised to determine if further attention is needed due to storm infiltration.	N/A	N/A	N/A	N/A	N/A	The mainline will be televised to determine if further attention is needed due to storm infiltration.	
2	2SSO10665	Active	Westborough CS	Westborough Water District	893360	1.2	Certified	Patricia Mairena	General Manager	08-FEB-24	20-FEB-24	20-FEB-24	Category 1 Spill	Rowntree Lift Station at 2201 Gellert Blvd., South San Francisco, CA 94080	02/05/2024 22:24	02/05/2024 21:59	02/05/2024 20:44	02/05/2024 22:29	24-0721		Spill from wetwell at Rowntree Lift Station due to electrical failure in control panel and a spill from manhole on Gellert Blvd. adjacent to lift station.	37.64929	-122.45386	Manhole; Pump Station		Manhole no. 23 Westborough grid map C-3, located at intersection of Gellert Blvd. and Rowntree Way, South San Francisco, CA.	40170	One photograph of lift station roof and wetwell access points.  Two photographs of spill recovery.  One video of lift station roof filled with sewage.  One video interior of lift station showing leaking roof above emergency generator.	Y	Storm System pipelines.	0	35795	N/A	35795	4375	Drainage Conveyance System that discharges to surface water		San Francisco Bay	Y	37.69097	-122.31075							02/05/2024 22:01	Using flow monitoring data from SCADA System was able to determine time that station was not functioning normally.  This gave us a time frame and then using additional pumping data from SCADA gave us amount of gallons lost. Also, onsite visual observations from initial responder and subsequent personnel on site.	Information retrieved from SCADA System that showed normal station operation and gallons pumped in a designated time period vs. data when station power went down.	Pump Station Failure - Controls		Pump Station - Controls		Vitrified Clay		63	35,795 gallons spilled into storm drain system.  Ultimately, going to the SF Bay. OES notified within 2-hour window of spill.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Upon entry to lift station put pump controls in hand position to activate pumps and stop SSO.  Called for more personnel and equipment to assist with area cleanup and attempted recovery from storm system. Diagnosed problem as water damage to electrical components inside control panel. However, water damage was secondary to electronic component failure. Containment was limited to lift station grounds and structure.  Limited recovery from storm system at adjacent car dealership parking lot.	Repaired Facilities or Replaced Defect		Repairs are ongoing to electrical panels at lift station.  Still trying to obtain and/or update components. District contractor will provide a list of needed equipment for upgrade to be presented to Board of Directors for approval.	Rowntree Lift Station Failure and Failure Analysis will be presented to the Board of Directors at the next board meeting scheduled to take place on March 14, 2024.	02/06/2024 07:00	District contractor (TelStar) still in process of determining exactly which components failed.  So far, some components have been replaced and others on order. 	Y	For complete understanding of component failure.	03/14/2024 21:00	Colma Creek/San Francisco Bay	Other (specify below)	Colma Creek is concrete drainage structure that flows to the San Francisco Bay.	San Francisco Bay	None	Other (specify below)	No effect.	Westborough Water District in conjunction with OES.	0	N	N											For complete understanding of component failure.	
4	4SSO10431	Active	Santa Monica City CS	Santa Monica City	893361	1.2	Certified	Ralph Valencia	Water/Wastewater Administrator		08-FEB-24	08-FEB-24	Monthly Category 3 Spill	1749 12th Street	02/04/2024 21:30	02/04/2024 22:00	02/04/2024 19:30				Discharge flowed out multiple laundry unit connections located in the sublevel of a 6 unit condo. All flow was contained on paved surface in garage. 	34.01747	-118.48103	Other (specify below)	Laundry utility connection and one laundry sink 		540	Photos of laundry connection discharge. 540	N	No waterbodies or waterways impacted. All discharge contained on property.					540	Other (specify below)	Paved surface 	All discharge contained on property. 										02/04/2024 22:30	Assuming 18 connections 10GPH and 3 hours   18 x 10 X 3 = 540 Gallons 	Assuming 3 hours. HOA qas notified at 7:30PM 	Root Intrusion		Lower Lateral		Vitrified Clay		20	No water turn off. Min flow since it was 10PM	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Returned All Spill to Sanitary Sewer System		NA	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance		Increase frequency of service to main line. 		02/04/2024 22:30	All discharge contained on property. 		Addtional CCTV to follow 	02/06/2024 10:20														NA	Increase frequency of service to main line. 	Adjusted to 3 months 	NA	NA	NA	NA	Standard response and cleanup 	Addtional CCTV to follow 	
2	2SSO10111	Active	Mountain View City CS	Mountain View City	893362	1.2	Certified	Mike Vasquez	Utilities Services Manager	08-FEB-24	09-FEB-24	09-FEB-24	Category 1 Spill	460 North Shoreline Blvd	02/07/2024 15:45	02/07/2024 16:07	02/07/2024 12:30	02/07/2024 17:42	24-0799	08-FEB-24	See Attachment	37.4011	-122.08067	Lateral Clean Out (Private)	N/A	N/A	1245	See Attachments	Y	460 N. Shoreline Blvd private drain inlet into CMV (G4-078) and then large diameter storm mains (36�, 39�, 42� and 69�) into storm outfall F5-141 at Leong and Moffett (During rain event) (See attached storm map)	200	0	Discharge into storm outfall F5-141 at Leong and Moffett (During rain event) (See attached storm map)	1045	200	Drainage Conveyance System; Other (specify below); Paved Surface	Private sewer cleanout 	-122.08067 - 37.40110 Blockage was caused by heavy amounts of rags & heavy grease. Blockage occurred approx. 5ft upstream of sanitary sewer M/H# G4-052 on Stierlin Rd.  Main plug caused discharge at 460 N. Shoreline Blvd. spilling from on-site private lateral entering private storm DI that ties to CMV storm M/H# G4-078 caused by CMV sanitary sewer main blockage. 	Y	-122.08067	37.4011							02/07/2024 16:39	460 N. Shoreline Blvd (650-966-1327). Maintenance crew was on-site when private sewer cleanout started to overflow at 12:30pm on 2/7/24. Apartment Complex Management contacted CMV at 3:45pm to report sewer spill. Attached picture of spill and visual estimation of highest volume overflowing was 5 gallons per minute x 249 minutes (4hrs & 9min) (1,245 total gallons of sewer spilled) with 200 gallons partially recovered. CMV estimates 1045 gallons of sewage entered large diameter storm mains (36�, 39�, 42� and 69�) with heavy rainwater flows before entering Stevens Creek. 	Maintenance staff noted that the sewer discharge spill was at the highest volume (5 gallons per minute/CMV estimation/attached picture) upon CMV arrival and that there was no damage or other overflows/spills at the 460 N. Shoreline Blvd apartment complex.  	Debris-Rags; Fats, Oil and Grease (FOG)		Gravity Mainline; Other (specify below)	Private on-site sewer cleanout 	Vitrified Clay		60	1,245 total gallons of sewer spilled with 200 gallons partially recovered. CMV estimates 1045 gallons of sewage entered large diameter storm mains (36�, 39�, 42� and 69�) with heavy rainwater flows before entering Stevens Creek. 	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Called out#422 &427 for vac-con assistance. Inspected D/S M/H's to identify where to break blockage from. Had #422 go to SS M/H# G4-052 to break blockage while 427 ammonia test strip storm M/H# to for recovery efforts due to rains throughout day. Due to storm mains flowing heavy minimal sewer discharge was recovered. After breaking plug, CMV crew recovered remaining sewage spill @ Storm M/H# G4-046. Crew vacuumed up remaining contaminated storm water from 460 N. Shoreline Blvd wash down of driveway and private on - site DI, private storm system and CMV storm system G4-078 - G4-046 ( 572ft). 	See attached spill report and additional information. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer	N/A	CMV wastewater crew followed up to televise sewer mainline blockage location (G4-050 � G4-052) and to wash down all affected sewer manholes from spill event. CMV will schedule a sewer manhole inlet rehab at G4-052 and adjust monthly hotspot footage from 430ft to 800ft between G4-050 � G4-052. CMV will add bi-weekly manhole inspections at G4-052 for the next two months. (Prior to rehab and after rehab) (See attached reports and photos) CMV will flush hotspot monthly x2 times.	Sewer manhole rehab estimated to be completed by 2/22/24	02/07/2024 20:00	Please refer to attached spill report and additional information and photos	N			Stevens Creek	Other (specify below)	Stevens Creek (See attached storm map)	See attached storm map 	No Impacts Observed	Temporary Restricted Use		Santa Clara Valley Water District	2	N	N												
2	2SSO10197	Active	St. Helena, City of, CS	St. Helena City	893369	1.6	Certified	Joseph M Leach	Director of Public Works	08-FEB-24	27-FEB-24	27-FEB-24	Category 1 Spill	290 Pope St 	02/04/2024 07:42	02/04/2024 07:42	02/04/2024 07:42	02/04/2024 15:30	24-0671	18-MAR-24	18  wastewater collections line overflowed due to heavy infiltration inflow from heavy rains, inside the Vineyard Valley Mobile Home Park at 290 Pope St, St Helena. Crews started monitoring system 02/04@0400. Crews were onsite conducting bypass operations from manhole to a downstream manhole at approx. 1300 GPM.  Call reported at 0742 that the system had overcame the bypass pump, started spilling to storm water drain inlet approx 12 ft from manhole. Staff then mobilized second pump started bypassing at 1200 GPM. Started bypassing 2500 GPM with two pumps at 1042. Two pumps still did not bypass all flow. Sampled Sulphur Creek outfall of storm DI, upstream 100', and downstream 02/04 @1640 could not get samples to lab in time; staff sampled again 02/05 @ 0730 samples picked up by lab at 0930. Staff monitored the site until SSO stopped 02/06 @ 0100; monitoring and updating flow estimations, monitoring and fueling pumps, and cleaning disinfecting the site. 	38.51158	-122.46081	Gravity Mainline; Manhole	N/A 	N/A	670000	See attachment 	Y	Storm drain inlet. (see attached)	6371900	670470	Storm Drain outfall to Sulphur Creek (see attached)	670470	6371900	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		18  wastewater collections line overflowed due to heavy infiltration inflow from heavy rains, inside the Vineyard Valley Mobile Home Park at 290 Pope St, St Helena. Crews started monitoring system 02/04@0400. Crews were onsite conducting bypass operations from manhole to a downstream manhole at approx. 1300 GPM.  Call reported at 0742 that the system had overcame the bypass pump, started spilling to storm water drain inlet approx 12 ft from manhole. Staff then mobilized second pump started bypassing at 1200 GPM. Started bypassing 2500 GPM with two pumps at 1042. Two pumps still did not bypass all flow. Sampled Sulphur Creek outfall of storm DI, upstream 100', and downstream 02/04 @1640 could not get samples to lab in time; staff sampled again 02/05 @ 0730 samples picked up by lab at 0930. Staff monitored the site until SSO stopped 02/06 @ 0100; monitoring and updating flow estimations, monitoring and fueling pumps, and cleaning disinfecting the site. 	Y	38.51158	-122.46081							02/06/2024 01:00	Method 1 Eyeball estimation reference sheet for estimating sewer spills  Method 4 Open channel spill estimation  Per the City of St Helena SSMP: SSO and Backup Response Plan Field Guide 	Per City of St Helena SSO Response SOP sec. F Spill Documentation. SSO Incident Report Forms and Official Spill Records were generated.  	Other (specify below); Surcharged Pipe (Combined Collection System Only)	Storm related I and I 	Manhole		Cast Iron		40	Areas surrounding the manhole were asphalt, gutter pan, and concrete side walk. SSO reached storm drain inlet that falls to Sulphur Creek. 	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Returned Portion of Spill to Sanitary Sewer System		18  wastewater collections line overflowed due to heavy infiltration inflow from heavy rains, inside the Vineyard Valley Mobile Home Park at 290 Pope St, St Helena. Crews started monitoring system 02/04@0400. Crews were onsite conducting bypass operations from manhole to a downstream manhole at approx. 1300 GPM.  Call reported at 0742 that the system had overcame the bypass pump, started spilling to storm water drain inlet approx 12 ft from manhole. Staff then mobilized second pump started bypassing at 1200 GPM. Started bypassing 2500 GPM with two pumps at 1042. Two pumps still did not bypass all flow. Sampled Sulphur Creek outfall of storm DI, upstream 100', and downstream 02/04 @1640 could not get samples to lab in time; staff sampled again 02/05 @ 0730 samples picked up by lab at 0930. Staff monitored the site until SSO stopped 02/06 @ 0100; monitoring and updating flow estimations, monitoring and fueling pumps, and cleaning disinfecting the site. 	Plan Rehabilitation or Replacement of Sewer		In house training on SSO SOP. Staff developed rigid discharge ends to allow pumping at higher volume. Communicated with Engineering Division for plans to rehab/replace and collect data for areas with high I and I.  	June 2024- Complete full CCTV inspection of the Collections System December 2024- Develop CIP to address key I and I locations  Summer 2025- tentative construction of initial phase to address I and I. 	02/06/2024 01:00	Reviewed pumping records that showed increase in flows at lift stations due to high I and I. Staff conducts rounds of sewer system weekly and witnesses high flows due to I and I. During storm events staff conducts monitoring rounds to ensure proper response to SSOs. 	Y	Completing CCTV of entire Collections System. Pursuing in manhole flow monitoring due to high flows caused by storm events. 	06/30/2024 00:01	Sulphur Creek to Napa River 	River		Sulphur Creek tributary to the Napa River  in St Helena, CA 	No observed impacts to aquatic life. 	Other (specify below)	 No established public access up stream or down stream of the storm drain outfall. 	City of St Helena 	0	N	Y	Spill location map attached 	See attached records from Alpha labs_ sampled for total coliform and ammonia at 3 locations SD outfall, upstream 100', downstream at safe access point. 									Completing CCTV of entire Collections System. Pursuing in manhole flow monitoring due to high flows caused by storm events. 	
4	4SSO11388	Active	County Sanitation District Joint Outfall CS	Los Angeles Cnty Sanitation Districts	893373	1.3	Certified	Andre Schmidt	Wastewater Collection Systems Manager	08-FEB-24	20-FEB-24	20-FEB-24	Category 1 Spill	Joint Outfall B Unit 9A Trunk Sewer (Joint Outfall System)	02/05/2024 03:48	02/05/2024 04:19	02/04/2024 23:55	02/05/2024 06:15	24-0680	21-MAR-24	The spill originated from LACSD�s Joint Outfall B Unit 9A Trunk Sewer at MH B 0037 located at coordinates 33.850518, -118.218814, approximately 200 feet north of the intersection of S. Alameda Street and Vista Industria in the Unincorporated area of Rancho Dominguez. 	33.850518	-118.218814	Manhole		The spill also originated from LACSD�s Joint Outfall B Unit 1A Trunk Sewer at MH G 0097 located at coordinates 33.857920 , -118.204630, approximately 450 feet south of the intersection of S. Susana Road and E. Maria Street in the Unincorporated area of Rancho Dominguez.   	8013800	The spill area from LACSD MH B 0037 extended approximately 150 feet north and 350 feet south along the northbound lanes of Alameda Street before entering the catch basins and storm drain. The spill area from LACSD MH G 0097 extended approximately 150 feet north and 150 feet south of MH G 0097 on both the north and south bound lanes of Susana Rd. before entering the catch basins and storm drain. 	Y	The spill from LACSD MH B 0037 spilled onto northbound lanes of Alameda Street, then traveled to storm drain catch basins in the east gutter adjacent to MH B 0037 and south to catch basins located at the intersection of Alameda Street and Vista Industria. These catch basins discharge to a storm drain that eventually flows to the Dominguez Channel. The spill from LACSD MH G 0097 spilled onto the northbound and southbound lanes of Susan Road and traveled to storm drain catch basins in the east and west gutters adjacent to MH G 0097. These catch basins discharge to a storm drain that leads to Compton Creek.  	0	0	The spill from LACSD MH B 0037 entered Dominguez Channel from a storm drain at approximate coordinates 33.815423, -118.231388 located where Alameda St. crosses Dominguez Channel approximately 2,900 feet north or Sepulveda Blvd. The spill from LACSD MH G 0097 entered Compton Creek from a storm drain and the Compton Creek Pump Station at approximate coordinates 33.853467, -118.212416 located approximately 2,800 feet southwest of MH G 0097. 	8013800	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		See Attachment	Y	33.850518	-118.218814	33.85792	-118.20463					02/05/2024 10:25	Based on visual indicators from photographs and videos taken during the spill, the total spill volume from both MHs G 0097 and B0037 was calculated to be approximately 8,013,800 gallons. The spill start time for both appearance points was approximately 11:55 p.m. on Sunday, February 4, 2024. This start time is based on sewer flow levels measured approximately 525 feet upstream of MH G 0097 and supported with a Sheriff�s Department incident report time of 11:59 a.m. on Sunday, February 4, 2024. The spill end times were observed by LACSD staff on February 5, 2024 at 8:20 a.m. from MH G 0097 and 10:25 a.m. from MH B 0037.	The spill start time for both appearance points was approximately 11:55 p.m. on Sunday, February 4, 2024. This start time is based on sewer flow levels measured approximately 525 feet upstream of MH G 0097 and supported with a Sheriff�s Department incident report time of 11:59 a.m. on Sunday, February 4, 2024. The spill end times were observed by LACSD staff on February 5, 2024 at 8:20 a.m. from MH G 0097 and 10:25 a.m. from MH B 0037.	Flow Exceeded Capacity (Separate Collection System Only)		Gravity Mainline		Concrete		74	The spill from LACSD MH B 0037 spilled onto northbound lanes of Alameda Street, then traveled to storm drain catch basins in the east gutter adjacent to MH B 0037 and south to catch basins located at the intersection of Alameda Street and Vista Industria. These catch basins discharge to a storm drain that eventually flows to the Dominguez Channel, the Los Angeles Harbor, and the Pacific Ocean. The spill from LACSD MH G 0097 spilled onto the northbound and southbound lanes of Susan Road and traveled to storm drain catch basins in the east and west gutters adjacent to MH G 0097. These catch basins discharge to a storm drain that leads to Compton Creek, the Los Angeles River, and the Pacific Ocean.  	Y	Cleaned Up (specify below)		See Attachment	Repaired Facilities or Replaced Defect		See Attachment	See Attachment	02/05/2024 17:16	See Attachment	N			Compton Creek, Los Angeles River, Dominguez Channel, Los Angeles Harbor, Pacific Ocean 	Ocean; River		See Attachment	None	Public Closure; Restricted Public Access	Inner Cabrillo Beach still closed as of February 20, 2024.	Los Angeles County Department of Public Health, City of Long Beach Health Department	15	N	Y	See Attachment	See Attachment										
4	4SSO11388	Active	County Sanitation District Joint Outfall CS	Los Angeles Cnty Sanitation Districts	893375	1.2	Certified	Andre Schmidt	Wastewater Collection Systems Manager	08-FEB-24	21-FEB-24	21-FEB-24	Category 1 Spill	Marina Trunk Sewer, Section 1A (District 3)	02/05/2024 13:20	02/05/2024 13:20	02/05/2024 13:20	02/05/2024 14:33	24-0700		The spill originated from a City of Long Beach sewer manhole, located at coordinates 33.7788705� N, -118.1486204� W on Grand Avenue, approximately 15 feet south of the intersection with East 10th Street.  This manhole is directly tributary to the Marina Trunk Sewer, Section 1A and connects to the LACSD sewer system at MH 03 0345.  	33.7788705	-118.1486204	Manhole	The spill occurred during a single rain event on February 5th and February 6th, 2024, and spilled from three locations that included the City of Long Beach sewer manhole, LACSD MH 03 0345, and a private sewer cleanout for an apartment complex located at 3911 East 8th Street in the City of Long Beach. California Office of Emergency Services (Cal OES) was notified by phone at 2:33 p.m. on February 5th for the initial spill at the City of Long Beach sewer manhole and assigned Control Number 24-0700.  Cal OES was again notified by phone at 8:39 a.m. on February 6th for the spill restarting at the City of Long Beach sewer manhole, and additional appearance points at LACSD MH 03 0345, and the private sewer cleanout, and assigned Control Number 24-0729.    	-LACSD MH 03 0345 located at coordinates 33.7789707� N, 118.148769� W on East 10th Street, approximately 30 feet west of Grand Avenue.   -Private sewer cleanout for apartment complex, located at coordinates 33.7772497� N, -118.1467064� W at 3911 East 8th Street in the City of Long Beach.  The private sewer cleanout is connected to a City of Long Beach sewer in East 8th Street that is tributary to the Marina Trunk Sewer, Section 1A and connects to the LACSD sewer system at MH 03 0348.  	49025	See Attachment	Y	See Attachment	0	0	The spill entered the Colorado Lagoon from a storm drain outlet located at approximate coordinates 33.771901� N, -118.136403� W, and northeast of the intersection of Park Avenue and East Appian Way in the City of Long Beach.	49025	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		The spill traveled aboveground to four separate catch basins that discharge to a storm drain that eventually flows to the Colorado Lagoon, Alamitos Bay, and the Pacific Ocean.  See Attachments in CIWQS for additional details.	Y	33.7788705	-118.1486204	33.7789707	-118.148769	33.7772497	-118.1467064	33.771903	-118.136394	02/06/2024 10:51	Based on LACSD sewer level monitoring sensor data, observed flow rates, and spill durations for each manhole and the private sewer cleanout, it is estimated that approximately 5,725 gallons overflowed from the City manhole over 3 hours and 49 minutes on February 5, 2024.  Using the same spill volume calculation methodology for February 6, 2024, it is estimated that approximately 5,800 gallons overflowed from MH 03 0345 over 2 hours 30 minutes; approximately 30,000 gallons overflowed from the City manhole over 3 hours and 51 minutes; and approximately 7,500 gallons overflowed from the private sewer cleanout over 1 hour and 30 minutes.  The total estimated spill volume from both manholes and the private sewer cleanout during the single rain event on February 5 and 6, 2024, is 49,025 gallons.  	See No. 3	Flow Exceeded Capacity (Separate Collection System Only)		Gravity Mainline		Vitrified Clay		57	The spill traveled aboveground to four separate catch basins that discharge to a storm drain that eventually flows to the Colorado Lagoon, Alamitos Bay, and the Pacific Ocean.  	Y	Cleaned Up (specify below)		See Attachment	Other (specify below)	To prevent future capacity exceedances in the Marina Trunk, Section 1A sewer, a project to construct a relief sewer is currently in design and construction is expected to begin in late 2024.  	To prevent future capacity exceedances in the Marina Trunk, Section 1A sewer, a project to construct a relief sewer is currently being designed.  The design of the relief sewer is approximately 50 percent complete, with construction expected to begin in late 2024 and be completed in 2025.  LACSD is also working with the City of Long Beach to reduce inflow/infiltration to the City sewers, which are the large majority of sewers tributary to MH 03 345.	See 10b	02/06/2024 15:13	See Attachment	N			Colorado Lagoon, Alamitos Bay, Pacific Ocean	Ocean; Other (specify below)	The Colorado Lagoon is an inland water body or tidal lagoon.  Alamitos Bay is a coastal inlet on the Pacific Ocean.   	The Colorado Lagoon is an inland water body or tidal lagoon.  Alamitos Bay is a coastal inlet on the Pacific Ocean.  Both of these water bodies are tributary to the Pacific Ocean.   	None	Public Closure	Long Beach Environmental Health closed six Long Beach bayside beaches on February 1, 2024, and an additional four beaches located beach side on the Pacific Ocean on February 5, 2024.    	Long Beach Environmental Health 	10	N	Y	Sample 1: 33.7715748, -118.1341299 Sample 2: 33.7706286, -118.1346989 Sample 3: 33.7678133, -118.1299835 Sample 4: 33.75856, -118.11955 Sample 5: 33.757, -118.130 Sample 6: 33.754, -118.131 Sample 7: 33.751, -118.126 Sample 8: 33.744, -118.118 	Total Coliform, Fecal Coliform,  Enterococcus, E. Coli, Ammonia  										
4	4SSO11388	Active	County Sanitation District Joint Outfall CS	Los Angeles Cnty Sanitation Districts	893376	1.2	Certified	Andre Schmidt	Wastewater Collection Systems Manager	08-FEB-24	21-FEB-24	21-FEB-24	Category 1 Spill	La Mirada Trunk, Sections 1&2	02/06/2024 14:40	02/06/2024 15:59	02/06/2024 08:43	02/06/2024 19:12	24-0765		The spill originated from LACSD�s La Mirada Trunk, Sections 1&2 at MH 18 0326 at coordinates 33.8949786�N, -118.0189328�W, at the intersection of Excelsior Drive and Figueras Road in the City of La Mirada.	33.8949786	-118.0189328	Manhole			30000	The spill extended approximately 12 feet west of MH 18 0326 into the gutter and approximately 270 feet southwest along the west curb of Figueras Road to the storm drain catch basin north of the intersection of Figueras Road and San Bruno Drive.	Y	The spill traveled above ground for approximately 270 feet and entered the storm drain. The wastewater flowed through the underground storm drain approximately 220 feet before entering La Mirada Creek, where it traveled approximately 4,800 feet and entered Coyote Creek. From there, it flowed approximately 42,000 feet (8.0 miles) and entered San Gabriel River. 	0	0	The spill traveled to La Mirada Creek (tributary) then discharged to surface water at Coyote Creek. 	30000	0	Surface Water		Destination 1: Manhole 18 0326 Destination 2: Storm water catch basin Destination 3: Discharge location from the storm water conveyance system to Coyote Creek	Y	33.8949786	-118.0189328	33.894405	-118.019511	33.890524	-118.033			02/06/2024 09:15	See attachment.	See attachment.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Vitrified Clay		71	See attachment.	Y	Cleaned Up (specify below)		See attachment.	Other (specify below)	See attachment.	See attachment.	See attachment.	02/06/2024 17:45	See attachment.	N			Coyote Creek	Other (specify below)	Surface Water	Surface water channel	None	Public Closure	Orange County Healthcare Agency closed public access to Seal Beach beaches on February 7, 2024, which have since reopened as of February 13, 2024.	Orange County Healthcare Agency	6	N	Y	Sample 1: MH 18 0326 (33.8949786, -118.0189328) Sample 2: 100 feet upstream at La Mirada Creek (33.89422, -118.01887) Sample 3: 100 feet downstream at La Mirada Creek (33.89366, -118.01941)	Samples tested for Total Coliform, Fecal Coliform, Enterococcus, and E. Coli and ammonia										
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	893377	1.4	Certified	Gerald Watson	Sanitation Wastewater Manager III		04-APR-24	04-APR-24	Monthly Category 3 Spill	3475 North Camino De La Cumbre	02/08/2024 09:38	02/08/2024 10:24	02/08/2024 09:38				The initial crew arrived at 10:24 A.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.133623	-118.447115	Manhole		None.	110	None Taken.	N	None Taken.	0				110	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	34.133623  -118.447115	Y	34.133623	-118.447115							02/08/2024 10:32	Spill flowrate and volume determination based on flowout pickhole or opening	Spill flowrate and volume determination based on flowout pickhole or opening Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening1inches Flowrate per pickole/opening (gpm)2gpm # of pickholes/openings1 Total flowrate (gpm)2gpm Duration of spill (minutes)54minutes Total flow (gallons)110gallons 	Root Intrusion		Gravity Mainline		Vitrified Clay		71	It was estimated that approximately 110 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment, and subsequently the entire back up amount was returned to the sewer system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		On Thursday, February 8, 2024 at 9:38 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 3475 North Camino De La Cumbre (TG 562-A7). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 10:32 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 110 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment, and subsequently the entire back up amount was returned to the sewer system. 	Inspected Sewer Using CCTV to Determine Cause		On Thursday, February 8, 2024 at 9:38 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 3475 North Camino De La Cumbre (TG 562-A7). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 10:32 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 110 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment, and subsequently the entire back up amount was returned to the sewer system. 		02/08/2024 10:32	On Thursday, February 8, 2024 at 9:38 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 3475 North Camino De La Cumbre (TG 562-A7). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 10:32 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 110 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment, and subsequently the entire back up amount was returned to the sewer system.  		None 	02/08/2024 10:32														None At This Time.	Pipeline Is On An Semi-Annual Maintenance Schedule. As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. 	Pipeline Is On An Semi-Annual Maintenance Schedule. As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. 	Pipeline Is On An Semi-Annual Maintenance Schedule. As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. 	Pipeline Is On An Semi-Annual Maintenance Schedule. As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. 	None At This Time.	Pipeline Is On An Semi-Annual Maintenance Schedule. As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. 	On Thursday, February 8, 2024 at 9:38 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 3475 North Camino De La Cumbre (TG 562-A7). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 10:32 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 110 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment, and subsequently the entire back up amount was returned to the sewer system. 	None 	
2	2SSO10162	Active	Novato And Ignacio CS	Novato Sanitary District	893380	1.3	Certified	Jeff Andress	Collection Systems Superintendent	08-FEB-24	20-FEB-24	20-FEB-24	Category 2 Spill	1959 Novato Blvd., Novato CA	02/04/2024 19:01	02/08/2024 12:30	02/08/2024 12:00	02/08/2024 18:49	24-0830		This took place at 1959 Novato Blvd. and was coming out of the cleanout located in the residences carport.	38.11125	-122.59101	Lateral Clean Out (Private)			1179	the spill was contained in the carport parking area extending a few feet around the paved area. Some of the spill seeped into the garage and into the residences crawl space. 	N						800	Building or Structure; Paved Surface; Unpaved Surface		Came out of a clean out located in a concrete carport next to the garage. the spill pooled up in the carport area and seeped into the garage slab and crawlspace of the residence. 	Y	38.11128	-122.59102							02/04/2024 15:00	septic contractor pumped away surface volume and estimated approximately 800 gallons from the pooled up carport area. the amount in the crawlspace was calculated as it being a 950sf house with about 2 inches of the spill, that was absorbed into the soil. so 950sf x .16(2 ) = 152 x 7.48gals= 1136.96 or 1137gallons + 800gals = 1937 total gallons. 	we received a call 12:25pm. we were told they noticed it seeping out around 12pm. so from 12pm-3pm= 180 mins. 1937gals divided by 180 mins gives us an estimated 10.76 gpm. 	Flow Exceeded Capacity (Separate Collection System Only)		Lower Lateral		Other (specify below)	24  transite pipe	40	the spill remained on the private property. It was cleaned up by septic hauler, crawlspace and garage were taken care of by a restoration company. 	Y	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Returned Portion of Spill to Sanitary Sewer System		sand bags provided to try and stop any further seepage into the garage and crawlspace. bypass pump set up and pumped down 24  mainline into a relief sewer near by. Put the property cleanout cap back on and had a septic hauler clean up standing water. A restoration company was called the following day to mitigate the affects of the garage and crawlspace. pressure washed the concrete carport.   	Inspected Sewer Using CCTV to Determine Cause		It was determined this was due to a storm event where 2.5 +/- inches of rain occurred in a short period of time. The CCTV inspection showed the lower lateral connected to a 24  transite trunk main. We have installed a smartcover just upstream of this residence and have a pump hooked up to a truck ready to respond to any smartcover alarms at this location. looking into options to re route lower lateral. 	We have installed a smartcover just upstream of this residence and have a pump hooked up to a truck ready to respond to any smartcover alarms at this location. looking into options to re route lower lateral. 	02/11/2024 12:00	It was determined this was due to a storm event where 2.5 +/- inches of rain occurred in a short period of time. The CCTV inspection showed the lower lateral connected to a 24  transite trunk main. 	N												N													
9	9SSO10646	Active	City of Chula Vista CS	Chula Vista City	893391	1.2	Certified	Mark Sanchez	PW Manager		27-MAR-24	27-MAR-24	Monthly Category 3 Spill	617 First Av. Chula Vista CA 91910	02/08/2024 12:15	02/08/2024 12:25	02/08/2024 12:15				Manhole at 617 First Ave.	32.63266	-117.06715	Manhole			350	Paved street surface and curb & gutter	N						300	Street/Curb and Gutter (2 3)		Paved street surface and curb & gutter										02/08/2024 12:45	SSO picture chart	When call received, arrival of crew onsite and SSO chart	Pipe Structural Problem/Failure - Controls		Gravity Mainline		Vitrified Clay		50	No impact to storm drains or channels	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned Portion of Spill to Sanitary Sewer System		Contained spill, vacuumed, washed down surface vacuumed all liquid from washdown	Inspected Sewer Using CCTV to Determine Cause		Patched trough were piece of VCP broke off		02/08/2024 01:00	CCTV'd sewer main segment, cause determined to be a piece of VCP pipe broke off from manhole and wedged at a bend in the sewer main		Investigation complete	02/12/2024 09:17														None taken	None needed	Continue routine maintenance	Future CIP project	Manhole 3185	Future CIP	In our work management system	None needed	Investigation complete	
5R	5SSO10801	Active	Redding City CS	City of Redding	893280	2.1	Amended	Joshua Vandiver	Wastewater Manager	05-FEB-24	09-FEB-24	09-FEB-24	Category 1 Spill	Clear Creek Wastewater Treatment Plant	02/04/2024 23:17	02/04/2024 23:40	02/04/2024 23:32	02/05/2024 07:03	24-0681	13-MAR-24	Power loss at the treatment plant. The backup generator started as designed, however, the pumps went into alarm and would not clear until the operator acknowledged the alarm. Flow surcharged both influent pump stations wet wells, then the collection system before reaching the overflow structure into Clear Creek.  Power was off at 23:17, surcharge happened until 23:32 when overflow began.  The operator arrived at 23:40, pumps were fully operational and overflow stopped at 23:51.	40.50483	-122.36914	Other Sewer System Structure	Overflow gate from treatment plant influent pump station.		467213	Overflow gate from treatment plant influent pump station, discharges into Clear Creek, approximately 175 feet from confluence of the Sacramento River	N				The overflow structure sits adjacent to Clear Creek, which is a tributary to the Sacramento River.	145837	0	Other (specify below)	Overflow structure of treatment plant influent pump station	discharged directly into Clear Creek, approximately 175 feet from main channel entrance of Sacramento river	Y	40.5049	-122.36887							02/04/2024 23:55	Flow rate into the plant was taken and broken down to gallons per minute, and estimated capacity of both pump station wet wells and collection system surcharge until the elevation of overflow structure was reached.  SCADA information to show pumping rates once pumps were restarted. As the water in/water out overflow occurred, track per minute what was spilling until pumps were pumping more than what was coming in, therefore ending the overflow.	SCADA historian data, showing when power went off, influent flow rate, pumping rate, as-built drawings depicting elevations and capacities of infrastructure, (wet well and collection system) as well as elevations of piping and overflow structure.  Pipeline surcharge analysis conducted with Arc GIS by a registered professional engineer.	Pump Station Failure - Controls; Pump Station Failure - Mechanical; Pump Station Failure - Power	Power outage Level probe failure Pump control Programming failure	Other (specify below)	Overflow structure constructed as part of original influent pump station design, circa 1966.	Other (specify below)	concrete vault with a steel hinged flap gate	58	Spill discharged directly into Clear Creek, which meets the Sacramento river.  Discharge was unrecoverable as flows in the creek and river are flowing at very high seasonal rates. (Photo attached)	Y	Other (specify below); Other Enforcement Agency Notified; Restored Flow	Operations staff responded to the station, cleared all alarms, started all pumps in hand and locked generator in  on  position to ensure stable power.	Spill discharged directly into Clear Creek, which meets the Sacramento river.  Discharge was unrecoverable as flows in the creek and river are flowing at very high seasonal rates. (Photo attached)	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below)	Complete reprogramming of logic controllers at influent pump station. Replaced level transducer in the station.   Installing backup level sensors in both wet wells.   Installing emergency  high-level sensors  with programming changes to PLC logic control to override alarm delays, eliminating human acknowledgment of alarms before pumps can resume operation.  Reprogramming logic controllers with  E-Run  mode based on  high-high  backup level float system. Change the programming of generator logic to lock in on generator power for a minimum run time of 30 minutes before looking for shore power. 	Install float sensor in influent structure to identify high level independently of wet well level, as an extra back-up.  This sensor will be used as the override to start the  E-Run  process.	Changes are being implemented immediately.	02/05/2024 10:00	Wind storm caused public power to fault.  Emergency generator started and powered up location. As public power came on and off, ATS switched load back to shore power and back to generator power repeatedly.  Pump controllers went into alarm and  locked up , pumps would not restart.  Level transducer on second pump station failed, therefore not registering a high level condition and not calling for pumps. Operations staff was notified as soon as power was disrupted and responded to the site within 25 minutes of receiving the call and had all pumps running within 6 minutes of arriving. 	N			Sacramento river via Clear Creek	River		Sacramento River, south of Redding, north of Anderson	None observed	Other (specify below)	Spill was at the upstream end of the treatment plant property, which is fenced and limits public access for approximately 1.25 miles of riverbank downstream	NA	0	N	Y	DSC-001 Plant Headworks RSW-001 SSO Location RSW-001U 50' upstream of SSO Location RSW-001D Downstream of SSO Location (Located at R1 sample	EC, pH, Temp, DO, Ammonia, Total Coliform, E-Coli										
4	4SSO11388	Active	County Sanitation District Joint Outfall CS	Los Angeles Cnty Sanitation Districts	893405	1.2	Amended	Andre Schmidt	Wastewater Collection Systems Manager	09-FEB-24	21-FEB-24	21-FEB-24	Category 1 Spill	Scott Avenue Trunk and Scott Avenue Relief Trunk	02/06/2024 08:46	02/06/2024 09:11	02/06/2024 08:15	02/06/2024 13:54	24-0749		The primary spill appearance point was from LACSD�s Scott Avenue Trunk at MH 18 0939 located in the City of Whittier at coordinates 33�56�48.7� N, 118�0�0.2� W. See attachment for photo.	33.9468577	-118.0000538	Manhole		Additional spill appearance points include LACSD MHs 18 0944, 18 0943, and 18 0942 on the Scott Avenue Relief Trunk. These manholes are located in the City of Whittier at coordinates 33�56�55.7�N, 118�0�7.2�W, 33�56�54.4�N, 118�0�4.4�W, and 33�56�53.9�N, 118�0�2.7�W, respectively. MH 18 0944 is located on La Serna Drive and MHs 18 0943 and 18 0942 are located on private residential properties along Janine Drive. See attachment for photos.	23218	See attachment for response and photo.	Y	The spill volumes from MH 18 0939 and MH 19 0944 entered into the catch basin on Whittier Boulevard located 250 feet SE of the intersection with Scott Ave, and then flowed through underground storm drains approximately 3,900 feet (0.7 miles) before entering Leffingwell Creek, where it traveled 15,000 feet (2.8 miles) before reaching Coyote Creek. See attachment for photo.	0	0	The stormwater system conveyed the spill volume into surface water Coyote Creek via tributary Leffingwell Creek. Leffingwell Creek discharges into Coyote Creek approximately 480 feet east of the intersection of Utica Street and Ramsey Drive. See attachment for photo.	21512	1706	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		Destination 1: Manhole 18 0942 Destination 2: Storm water catch basin Destination 3: Discharge location from storm water conveyance system to the Leffingwell Creek Destination 4: Discharge location from Leffingwell Creek to Coyote Creek	Y	33.948306	-118.00075	33.94688	-118	33.938215	-118.005535	33.923845	-118.035667	02/06/2024 11:26	See attachment.	See attachment.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Vitrified Clay		53	See attachment.	Y	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Returned Portion of Spill to Sanitary Sewer System		See attachment.	Other (specify below)	See attachment.	See attachment.	See attachment.	02/06/2024 16:00	See attachment.	N			Coyote Creek	Other (specify below)	Concrete-lined channel tributary to the Pacific Ocean	Surface water channel	None	Public Closure	Orange County Healthcare Agency closed public access to Seal Beach beaches on February 7, 2024, which have since reopened as of February 13, 2024.	Orange County Healthcare Agency	6	N	Y	Samples were collected at the following locations: Sample 1: 33.938195, -118.005589 Sample 2: 33.935403, -118.007984 Sample 3: 33.946858, -118.000054	Samples were tested for Total Coliform, Fecal Coliform, Enterococcus, E. Coli and ammonia.										
9	9SSO10647	Active	City of Coronado CS	Coronado City	893406	1.3	Amended	Kim Godby	Utilities Supervisor	09-FEB-24	22-MAR-24	22-MAR-24	Category 1 Spill	Embarcadero North Park	02/06/2024 10:04	02/06/2024 11:57	02/06/2024 10:04	02/09/2024 18:12	24-0764	21-JUN-24	Manhole within Embarcadero North Park	32.70752	-117.169208	Force Main			589305	Forcemain manhole spilled onto pedestrian walkway, oveflowed to the grass, down the rock embankment into the Embaracadero Marina, parking lot, into a storm drain system discharging to San Diego Bay and 	Y	Parking lot drainage inlets discharging to the San Diego Bay, Embarcadero Marina	0	0	San Diego Bay and Embarcadero Marina 	589305	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Unpaved Surface		Force main manhole located within Embarcadero North Park - spilled onto the pedestrian walkway, parking lot, into the drainage system and into San Diego Bay and Embarcadero Marina.	Y	32.70752	-177.169208							02/07/2024 15:06	high water alarm (SmartCover), station monitoring (Fleetzoom), ADS flow meter, video and pictures.	high water alarm (SmartCover), station monitoring (Fleetzoom), ADS flow meter	Pump Station Failure - Mechanical		Pump Station - Mechanical		Other (specify below)	spill appearance HDPE - not known at San Diego station	14	pedestrian walkway, parking lot, San Diego Bay and Embarcadero Marina	Y	Cleaned Up (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow		Parking lot closed, spill appearance location closed off, contracted with Patriot Environmental to monitor and clean the impacted area.	Other (specify below)	City of San Diego ongoing station repair to resolve capacity and/or pumping constraints	City of San Diego ongoing station repair to resolve capacity and/or pumping constraints. Conversations with Theh Port of San Diego and City of San Diego on improved communication channels. 	Follow up meeting with City of San Diego and The Port in April 2024	02/07/2024 15:16	City of San Diego communicated pump station operational and capacity problem	N			San Diego Bay and Embarcadero Marina	Ocean		San Diego Bay and Embarcadero Marina	none observed	Public Closure		County of San Diego - DEHQ	7	N	Y	Eh 540, Eh 545 Ruocco Park, EH 150 Embarcadero (NR)	Total and Fecal, Enterococcus										
9	9SSO10647	Active	City of Coronado CS	Coronado City	893408	1.3	Amended	Kim Godby	Utilities Supervisor	10-FEB-24	22-MAR-24	22-MAR-24	Category 1 Spill	Embarcadero North Park	02/07/2024 14:03	02/07/2024 15:38	02/07/2024 14:03	02/07/2024 17:30	24-0798	21-JUN-24	Force main manhole located in Embarcadero North Park	32.70752	-117.169208	Force Main; Manhole			38250	Spill overflowed onto the pedestrian walkway, over the grass, down the rock embankment into the Embarcadero Marina.  Spill also traveled to the parking lot, entered into storm drain inlets and discharged to the San Diego Bay. 	Y	Photos of the inlets to follow additional investigation. 	0	0	Photos to follow additional investigation.	38250	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Unpaved Surface		Force main manhole located within Embarcadero North Park - spilled onto the pedestrian walkway, parking lot, into the drainage system and into San Diego Bay and Embarcadero Marina. 	Y	32.70752	-177.169208							02/07/2024 14:24	spill appearance picture, flow meters, high water alarms, station remote monitoring data (Fleetzoom)	high water alarms (SmartCover)	Flow Exceeded Capacity (Separate Collection System Only); Rainfall Exceeded Design, I and I (Separate Collection System Only)		Force Main		Other (specify below)	HDPE	14	pedestrian walkway, parking lot, San Diego Bay and Embarcadero Marina 	Y	Cleaned Up (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow		parking area closed off, barriers placed around spill point, sand bags placed to control spill discharge area.  Contracted with Patriot Environmental for professional cleanup.	Other (specify below)	City of San Diego to resolve capacity constraints	Ongoing conversations with City of San Diego on capacity.  Conversations with The Port of San Diego and City of San Diego on improved communication channels. 	Follow up meeting scheduled with City of SD and The Port in April 2024	02/07/2024 14:40	City of San Diego system capacity constraints during rain event	N			San Diego Bay and Embarcadero Marina	Ocean		San Diego Bay and Embaracdero Marina	none observed	Public Closure		County of San Diego - DEHQ	7	N	Y	EH 540 Seaport, Eh 545 Ruocco Park, EH 150 Embarcadero (NR)	Total and Fecal Coliforms, Enterococcus										
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	893409	1.6	Certified	Kent Vian	Asst. Deputy Director		05-MAR-24	05-MAR-24	Category 1 Spill	NOT-40201063414-711 51ST.	02/10/2024 14:18	02/10/2024 14:50	02/10/2024 14:16		-		SPILL ORIGINATED IN A DRAINAGE CONVEYANCE SYSTEM GPS COORDINATES ARE (32.71273-117.08443)	32.71273	-117.08443	Gravity Mainline; Manhole	N/A	N/A	420	THE SPILL BOUNDARIES ARE CHOLLAS CREEK.	Y	THE SPILL TRAVELED ON A CONCRETE CONVEYANCE SYSTEM. 	0	420	N/A	0	0	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface	N/A	SPILL DESTINATION CHOLLAS CREEK COORDINATES (32.71272-117.08443)	Y	32.71272	-117.08443							02/10/2024 22:00	VISUAL CALCULATED METHOD.	THE SPILL START TIME ASSUMPTION WAS WHEN DISPATCH RECEIVED THE CALL FROM THE CONSUMER REPORTING THE SPILL.	Damage by Others Not Related to Collection System Construction/Maintenance; Debris from Construction; Debris-General		Gravity Mainline; Manhole		Vitrified Clay		72	CHOLLAS CREEK.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow		CITY CREWS RESPONDED, INVESTIGATED,CONTAINED,RELIVED,TRACK DOWN FINAL DESTINATION,CCTV MAINS AND CLEAN UP AREA.  CITY  CREWS ALSO CONTAINED AT TIME OF ARRIVAL AND CLEANED EFFECTIVE AREA WITH VACTOR AND WATER. 	Other (specify below); Repaired Facilities or Replaced Defect	COORDINATE WITH OTHER CITY. (STORMWATER) HIT MANHOLE IN STORM DRAIN CHANNEL WITH FRONT END LOADER PUSHING ROCKS AND DIRT INTO THE MANHOLE CUSING THE SYSTEM TO BACK UP AND SPILL. LOWER MANHOLE TO BELOW STORM WATER DRAINAGE CHANNEL GRADE. 	LOWER MANHOLE TO BELOW STORM WATER DRAINAGE CHANNEL GRADE. 	N/A	02/10/2024 22:00	N/A	N		02/11/2024 09:41	None	Other (specify below)	CHOLLAS CREEK 	CHOLLAS CREEK IS CREEK USE TO CONVEY STORMWATER BUT IS USUALY DRY DURUNG THE YEAR. 	NONE	Other (specify below)	NONE NO PUBLIC ACCESS 	N/A	0	N	N												
2	2SSO10169	Active	Richardson Bay Sd CS	Richardson Bay SD- Tiburon City	893410	1.3	Certified	Johnny Tucker	District manager 	11-FEB-24	11-FEB-24	11-FEB-24	Category 1 Spill	SW 423.11	02/11/2024 09:06	02/11/2024 09:52	02/11/2024 08:48		-		The only spill appearance point was from Manhole lid in the middle of the south bound lane of Blackfield dr. The spill rate fluctuated quite dramatically over the 8 minutes we were on seen setting up to clear the partial stoppage.	37.90423	-122.50087	Manhole			576	Liquid exited around the manhole cover running down the street, along the curb and gutter into a catch basin. 	Y	Roadside storm drain catch basin. 	20	0	No liquid was observed going directly into the surface water. 	556	20	Drainage Conveyance System that discharges to surface water		The water flows to storm drain waterway that had no flow during investigation 	N									02/11/2024 10:02	The spill was dammed in the curb and gutter and the volume measured after 1 minute to determine accurate measurement of volume 	We measured the volume and calculated with the formula of 7.48 gallons per cubic foot per minute.	Debris from Lateral		Gravity Mainline		Other (specify below)	High density polyethylene 	2	No real visual impact other than wet roadway. 	N	Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Spill containment was limited as we were able to clear the stoppage in just a few minutes. But we did dam approximately 8 gallons in the gutter that was later vacuumed up 	Inspected Sewer Using CCTV to Determine Cause		We televised the sewer line upstream and found no defects. 	We were unable to locate exactly where the root ball came from. 	02/11/2024 10:55	We pulled and photographed the the obvious root slug that caused the spill and it appears obvious to us that it came from a private lateral 	N			Richardson Bay	Other (specify below)	San Francisco Bay	San Francisco Bay 	None 	Other (specify below)	None	Marin County	0	Y	N												
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	893412	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		04-APR-24	04-APR-24	Monthly Category 3 Spill	1430 South Beverly Glen Boulevard	02/10/2024 14:20	02/10/2024 15:26	02/10/2024 14:20				The initial crew arrived at 3:26 P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.061755	-118.425516	Manhole			108	Spill Photos Are Attached.	Y	County of Los Angeles owned catch basin located at 1440 South Beverly Glen Boulevard	71				108	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	1430 South Beverly Glen Boulevard 34.061755 -118.425516 It was estimated that approximately 108 gallons of sewage backed out of the sewer as a result of the blockage, of that amount, 71 gallons of sewage entered an adjacent County of Los Angeles owned catch basin located at 1440 South Beverly Glen Boulevard. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.  	Y	34.061755	-118.425516							02/10/2024 15:35	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation and dimensional analysis.	Spill flowrate and volume determination based on flowout pickhole or opening Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening0.125inches Flowrate per pickole/opening (gpm)1gpm # of pickholes/openings2 Total flowrate (gpm)1gpm Duration of spill (minutes)75minutes Total flow (gallons)108gallons  Volume of a spill contained in a rectangular area Length239feet Width0.5feet Depth0.5inches0.0417feet  4.98ft337gallons 	Root Intrusion		Gravity Mainline		Vitrified Clay		97	It was estimated that approximately 108 gallons of sewage backed out of the sewer as a result of the blockage, of that amount, 71 gallons of sewage entered an adjacent County of Los Angeles owned catch basin located at 1440 South Beverly Glen Boulevard. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.  	N	Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		On Saturday, February 10, 2024 at 2:20 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1430 South Beverly Glen Boulevard (TG 632-D3). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 3:35 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 108 gallons of sewage backed out of the sewer as a result of the blockage, of that amount, 71 gallons of sewage entered an adjacent County of Los Angeles owned catch basin located at 1440 South Beverly Glen Boulevard. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	Inspected Sewer Using CCTV to Determine Cause		On Saturday, February 10, 2024 at 2:20 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1430 South Beverly Glen Boulevard (TG 632-D3). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 3:35 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.		02/10/2024 15:35	On Saturday, February 10, 2024 at 2:20 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1430 South Beverly Glen Boulevard (TG 632-D3). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 3:35 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.		Not At This Time.	02/10/2024 15:54														None At This Time.	Pipeline Is On Semi-Annual Maintenance Schedule, CCTV Found Some Defects, That Will Be Addressed By The City On-Call Contractor.	Pipeline Is On Semi-Annual Maintenance Schedule, CCTV Found Some Defects, That Will Be Addressed By The City On-Call Contractor.	Pipeline Is On Semi-Annual Maintenance Schedule, CCTV Found Some Defects, That Will Be Addressed By The City On-Call Contractor.	Pipeline Is On Semi-Annual Maintenance Schedule, CCTV Found Some Defects, That Will Be Addressed By The City On-Call Contractor.	None At This Time.	Pipeline Is On Semi-Annual Maintenance Schedule, CCTV Found Some Defects, That Will Be Addressed By The City On-Call Contractor.	On Saturday, February 10, 2024 at 2:20 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1430 South Beverly Glen Boulevard (TG 632-D3). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 3:35 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 108 gallons of sewage backed out of the sewer as a result of the blockage, of that amount, 71 gallons of sewage entered an adjacent County of Los Angeles owned catch basin located at 1440 South Beverly Glen Boulevard. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	Not At This Time.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	893415	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	12-FEB-24	15-FEB-24	15-FEB-24	Category 1 Spill	20 Binnacle Hill, Oakland Ca	02/09/2024 16:21	02/09/2024 21:30	02/08/2024 09:00	02/09/2024 22:05	24-0857		Manhole in the back of the property on Easement was overflowing, the sewage was flowing into a separate storm drain.	37.85367	-122.22779	Manhole			5345	Manhole in the back of the property on Easement was overflowing, the sewage was flowing into a separate storm drain.	Y	The sewage flowed into a drainage conveyance system called Temescal creek, it flows to Lake Temescal.	0	5345	The sewage flowed into a storm system called Temescal creek, it flows to Lake Temescal.	5345	0	Drainage Conveyance System that discharges to surface water		Storm drain to conveyance system called Temescal Creek to Lake Temescal.	Y	37.85367	-122.22779							02/09/2024 22:10	1  diameter pick hole x 4  height = 3.54 GPM 1510 minutes x 3.54 GPM = 5345 Gallons.	Start time was based on eyewitness account. End time was based on responding crew restoring the flow.	Root Intrusion		Gravity Mainline		Vitrified Clay		90	Storm drain to conveyance system called Temescal Creek to Lake Temescal.	N	Cleaned Up (specify below); Restored Flow	Sewer staff raked and removed contaminated debris.	Sewer staff raked and removed contaminated debris.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Main line was added to six-month high preventive maintenance plan.	Main line was added to six-month high preventive maintenance plan.	02/09/2024 23:00	CCTV inspection found root intrusion to be the potential cause of the overflow.	N			Temescal Creek, and Lake Temescal	Lake; Stream/Creek		Lake is not a drinking source water body.	No evidence of impact damage observed.	Other (specify below)	None.	East Bay Regional Parks.	0	Y	N												
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	893417	1.2	Certified	Daniel Whitlock	Manager	12-FEB-24	21-FEB-24	21-FEB-24	Category 2 Spill	Marin and Indiana 	02/04/2024 06:24	02/04/2024 08:20	02/04/2024 00:15		-		NE side of intersection 	37.74892	-122.39031	Combined Sewer Drain Inlet. (Combined Collection System Only); Manhole			1102650	NE corner of intersection of Marin and Indiana	N						1102650	Paved Surface; Street/Curb and Gutter (2 3)		NE corner of intersection and the sidewalk area was impacted by the spill.	Y	37.74881	-122.39035							02/04/2024 22:00	H&H hydraulics estimated the volume and extent of the spill.	H&H hydraulics estimated the volume and extent of the spill.	Other (specify below)	No failure. Rainfall exceeded capacity.	Other (specify below)	No failure. Rainfall exceeded capacity.	Concrete		30	Manhole and catch basin on NE corner overflowed.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Other Enforcement Agency Notified	Returned spill to combined sewer system.	Crews arrived and washed down the street the next day after water went back into the combined sewer system.	Other (specify below)	No corrective action taken. Rainfall exceeded capacity.	No corrective action taken. Rainfall exceeded capacity.	No corrective action taken. Rainfall exceeded capacity.	02/05/2024 16:30	Due to storm event, excessive rainfall exceeded capacity.	N												N													
5R	5SSO10805	Active	Corning Indust/Domestic CS	Corning City	893418	1.4	Certified	Robin Kampmann	City Engineer		14-FEB-24	14-FEB-24	Monthly Category 3 Spill	North St and Del Rio	02/02/2024 17:00	02/02/2024 17:45	02/02/2024 17:00				Manhole at North St. and Del Rio(See Attachment)	39.93294	-122.19025	Manhole			500	See Attachment	Y	Storm drain at Del Rio	500				500	Drainage Conveyance System		60 square ft from manhole to storm drain on Del Rio	Y	36.77826	-119.41793							02/02/2024 18:00	visual estimate from manhole flow and amount recovered from catch basin.	called out from residence in area at 1700hrs, cleared blockage at 1745hrs	Fats, Oil and Grease (FOG)		Gravity Mainline; Manhole		Polyvinyl Chloride (PVC)		25	minimum impact, all swage recovered in the area 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System	vacuumed all sewage in area and disinfected area with water-bleach solution. 	freed blockage with high pressure jet rodder to restore normal flow, then vacuumed all sewage in area. Returned sewage to system.	Adjusted Schedule/Method of Preventive Maintenance		Keep line clear by cleaning on a monthly basis.		02/12/2024 11:20	blockage was due to heavy amounts of grease in the system causing a blockage in the main line.		search for FOG source 	02/12/2024 11:20														no actions taken, all regulatory enforcement notified.	monthly cleaning and inspections	once a month instead of once every three months	City's disclosure	City's disclosure	City's dislcosure	entered into daily log book as well as sewer log book.	Clean trouble area once a month using high pressure jet rodder.	search for FOG source 	
3	3SSO10332	Active	City of Morgan Hill CS	City of Morgan Hill	893420	1.3	Certified	Chris Ghione	Public Services Director		20-FEB-24	20-FEB-24	Monthly Category 3 Spill	17056 Shady Lane	01/18/2024 10:40	01/18/2024 10:56	01/11/2024 12:00				see attachment; 	37.148606	-121.592421	Lateral Clean Out (Public); Other (specify below)	City clean out 		450	See attachments; 	N		0				30	Unpaved Surface		see attachments; 	Y	37.148607	-121.592407							01/18/2024 14:28	Spill volume was calculated using customers water bill for that week he said it was spilling, his lateral was the last on the line and plug was before anyone else in the system so all the volume came from his residence only. 	customer said it was a week ago, he stated the date and approximate time, it's in a forested area in his back yard so it is only visible to him. no other way to calculate exact time. 	Root Intrusion		Gravity Mainline		Vitrified Clay		45	Spill went 30' down a dirt area into a depression and was absorbed by the ground. solids where on top of ground leading to the depression area and scooped up.  	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Removed solids and disinfected the area. 	responded and made contact, looked at area affected, called out crew, checked city maps to locate sewer system and 3 of homes above spill, there were none. tried flushing line from downstream, area but was too steep and had 3 45's in main to break plug, used a spear tip and flusher hose inserted by hand and eventually got through roots, let it drain down,and back flushed and cut roots out and restored flow.  	Added Sewer to Preventive Maintenance Program		added cleanout to monthly manhole inspections. 		01/18/2024 14:28	Blockage caused by root intrusion, pipe is 45+ years old. 		N/A 	03/29/2024 14:49														N/A	added to annual flushing tasks.	added to annual flushing tasks.	N/A	N/A	N/A	N/A	N/A 	N/A 	
2	2SSO10168	Active	Redwood City CS	Redwood City	893421	1.2	Certified	Robin Kim	Public Works Superintendent	12-FEB-24	21-FEB-24	21-FEB-24	Category 2 Spill	2544 Eaton Ave	02/07/2024 11:52	02/07/2024 13:13	02/07/2024 11:32		-		The main spill originated out of a private cleanout in the front yard at 2544 Eaton Ave, Redwood City, CA. with coordinates 37.48431313882529, -122.25844571381025. A smaller spill occurred in the home next door at 2538 Eaton Ave, Redwood City (37.484369240031995, -122.25825676483069) and was contained to a 3 ft x 3 ft shower pan with a 3 in lip.	37.484313138825	-122.25844571381	Inside Building or Structure; Lateral Clean Out (Private)		The resident at 2538 Eaton Ave heard gurgling in his primary dwelling plumbing. He notified the City 20 minutes later at 11:52am when he saw his shower pan begin to fill. This spill was contained to the shower pan which was 3 ft x 3 ft x 3 in. Another appearance point occurred next door at 2544 Eaton Ave out of a private cleanout in the front yard.	2760	The smaller spill was contained to the 2538 Eaton Ave shower pan, according to the property owner, who indicated the shower pan was 3 ft x 3 ft x 3 in. As this was on private property, we do not have any photos. The larger spill out of the private cleanout in the front yard of 2544 Eaton Ave spilled alongside the front of the primary dwelling towards 2538 Eaton Ave as there was a slight slope downward. The spill first continued into the backyard of 2544 Eaton Ave, pooling in the pathway and also spilled under the dividing wooden fence into the backyard of 2538 Eaton Ave.	N						2654	Building or Structure; Unpaved Surface	The private yards at 2538 and 2544 Eaton Ave had a combination of turf, wood chips, sand, pavers, and concrete.	The smaller spill was contained to the shower pan inside 2538 Eaton Ave. Please see Attachment 1. 2544 Eaton Ave Spill Area for an overview of the spill from the second appearance point. The affected area (outlined in red) encompass the front, side, and back yard of 2544 Eaton Ave along with the side and back yard of 2538 Eaton Ave. 	Y	37.484407037417	-122.25845632702	37.484424677782	-122.258282264007					02/07/2024 13:39	Two methods were used to calculate the total spill volume. An area-volume method was used to calculate the spill volume at the first appearance point, inside the shower pan. This volume was calculated to be 16.83 gallons. A duration and flow rate comparison method was used to calculate the spill volume of the second appearance point. Flow rate was determined by taking the average of 12 staff opinions of the flow rate, which was approximately 21.6 gallons per minute. Multiplied by the total spill time of 127 minutes, the volume of the second appearance point was calculated at 2743.2 gallons. Added together, the total spill volume is estimated at 2,760 gallons. 	The resident at 2538 Eaton Ave reports hearing gurgling noises in his shower plumbing 20 minutes before he saw clear water coming up inside the shower, at which time he called the City's Public Works Department main line to report the back up. Public Works took the call at 11:52am and dispatched staff at 11:55am. Based on the resident's observations, the spill start time is estimated as the time the resident observed the gurgling noise, at 11:32am. The spill end time was determined by on-site staff responding to the spill. Staff observed the spill ending from the cleanout appearance point at 13:39. 	Inappropriate Discharge to Collection System; Pipe Structural Problem/Failure - Controls	On the day of the spill, rain had been falling (see Attachment 2. Rainfall and rain rate Feb 7 2024), and staff found that 2544 Eaton Ave had illegally connected a French drain in front of the garage to the sewer lateral, which we can reasonably conclude contributed to the spill volume.	Gravity Mainline		Vitrified Clay		50	At the first appearance point, the spill was contained to the shower pan in a bathroom at 2538 Eaton Ave. The shower pan is described by the resident to be 3ft x 3ft with a 3in lip. Once the sewer main line was flushed, the spill went fully back into the collection system. At the second spill site, the spill spread to part of the front yard at 2544 Eaton Ave (wood mulch, pavers, and turf) and down a small slope into their side and part of the back yard (sand). The spill spread under the wooden dividing fence into the side and back yard of 2538 Eaton Ave (concrete and turf).	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Initial response involved identifying the location of the sewer main blockage, and clearing the blockage using a vac-con jetting truck. The spill ended when staff flushed the main line on Eaton Ave and cleared the blockage. The spill occurred during a rainy day, and upon arrival staff found the spill to be clear water with no odor. The spill was contained to two private properties at 2544 and 2538 Eaton Ave and did not enter the street or any separate storm drainage systems. The spill in the backyard of 2544 Eaton was pumped out and put back into the collection system at the nearest manhole (in front of 2538 Eaton at the sidewalk). Hardscapes in both yards at 2544 and 2538 Eaton were broomed and washed down before disinfection. Affected mulch and a top layer of sand and gravel were scooped up from 2544 Eaton to be discarded.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		During the cleanup, staff found a French drain at 2544 Eaton connected to the private sewer lateral. The property owner has been notified and directed to correct the illegal discharge condition. Staff performed a CCTV inspection on 2/8/24 and identified a section of the main line in an area under a private fence post for repair. Staff have called for underground utilities to be marked and will be coordinating repair activities with the property owners. During the week of 2/12/24 staff returned to the neighborhood to flush the remaining sewer mains. 	2/8/24 nearby main lines were flushed and a CCTV inspection was performed on the main line. The property owner representative for 2544 Eaton Ave was contacted to correct the storm drainage tie-in. Staff placed a request for underground utilities to be marked, and staff is working to coordinate repairs with the property owners. 	02/07/2024 18:20	The spill occurred during a day where rainfall amounted to 0.45 . Staff found the spill to be clear with no odor. The spill ended when staff flushed the City main line and removed a blockage. Staff discovered a private drain tied in to the sewer lateral during spill clean-up activities, and believe that the unauthorized stormwater connection contributed to the spill volume. 	N												N													
4	4SSO11365	Active	Unincorporated County Area CSMD South/County Sanitation District CS	Los Angeles Cnty DPW	893422	1.3	Certified	Robert Swartz	Sr. CE	12-FEB-24	27-FEB-24	27-FEB-24	Category 1 Spill	2261-0205 (282 South Sandalwood Avenue, La Puente)	02/06/2024 11:15	02/06/2024 12:00	02/06/2024 10:15	02/06/2024 12:45	24-0757		CSMD Map Sheet No. 2261 Overflowing Manholes 205 & 206 MMS No. 8649096 	34.01505	117.91923	Manhole	Manholes 205 and 206. 		10500	Manholes 205 and 206 were flowing onto the street.  The spill entered a storm drain located south of Tadmore Street.	Y	The spill entered a storm drain located south of Tadmore Street.	0	10500	The spill entered a storm drain located south of Tadmore Street, which leads to PD 0064 Sandlwood Channel, City Drain, San Jose Creek, San Gabriel River - Santa Fe Dam to Thienes Ave, San Gabriel River - Whittier Narrows Dam, and San Gabriel River.  	10500	0	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Manholes 205 and 206 were flowing onto the street. The spill entered a storm drain located south of Tadmore Street, which leads to PD 0064 Sandlwood Channel, City Drain, San Jose Creek, San Gabriel River - Santa Fe Dam to Thienes Ave, San Gabriel River - Whittier Narrows Dam, and San Gabriel River.  	Y	34.01505	117.91923	34.01487	117.9181					02/06/2024 15:00	Visual or eyeball method.	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops. 	Root Intrusion		Gravity Mainline		Vitrified Clay		70	N/A	Y	Other Enforcement Agency Notified; Restored Flow		Upon arrival, we found manholes 205 and 206 overflowing. Due to heavy rain in the area, we were unable to set containment. We promptly contacted a supervisor to arrange for pump setup. after setting up the pumps, we observed the manhole levels beginning to decrease, effectively stopping the overflow. We notified all relevant agencies. 	Other (specify below)	No recommendations because the overflow was caused by a storm surge.	No recommendations because the overflow was caused by a storm surge.	N/A	02/06/2024 17:00	No recommendations because the overflow was caused by a storm surge.	N			San Gabriel River	River		The spill entered a storm drain located south of Tadmore Street, which leads to PD 0064 Sandlwood Channel, City Drain, San Jose Creek, San Gabriel River - Santa Fe Dam to Thienes Ave, San Gabriel River - Whittier Narrows Dam, and San Gabriel River.  	None.	Other (specify below)	No impact.	N/A	0	N	N												
2	2SSO10165	Active	Petaluma City CS	Petaluma City PWD	893424	1.2	Certified	Daniel A Herrera	Deputy Director of Operations	13-FEB-24	16-FEB-24	16-FEB-24	Category 1 Spill	801 Petaluma Blvd. South	02/04/2024 14:20	02/04/2024 14:32	02/04/2024 14:27	02/04/2024 18:09	24-0664		Appearance point at manhole in slow lane north bound.	38.22873	-122.62706	Manhole			47550	See pictures and map	Y	15 CMP storm drain to 36  RCP to ditch to river. 474' entrance to exit	0	0	see pictures	47550	0	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water		gutter-storm system-ditch-river	Y	38.22857	-122.62661	38.22845	-122.62628	38.22936	-122.62632			02/04/2024 17:15	Duration and flow rate comparison method SCADA trend.	SCADA trend for start and visual for end.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Polyvinyl Chloride (PVC)		7	Gutter-storm system-ditch-river	Y	Other (specify below)	Due to storm event unable to recover spill.	Could not contain due to storm event.	Other (specify below)	smart lid monitoring to identify sections of system in that area with high I and I.	Ongoing sewer rehab/replacement in the area.	Ongoing	02/04/2024 17:25	I and I	Y	Through smart lids to identify high I and I areas of contributing system.	04/17/2024 15:10	Petaluma River	River		River Channel. Tidal influenced.	No impacts observed	Other (specify below)	No Public access.	City of Petaluma	0	N	N											Through smart lids to identify high I and I areas of contributing system.	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	893430	1.2	Certified	Gerald Watson	Sanitation Wastewater Manager III		02-APR-24	02-APR-24	Monthly Category 3 Spill	1499 North Queens Road	02/12/2024 08:54	02/12/2024 09:16	02/12/2024 08:54				On Monday, February 12th, 2024 at 8:54 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1499 North Queens Road (TG 592-J5). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 9:28 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.	34.097672	-118.376245	Manhole		None.	120	Sanitary Sewer Overflow Pictures.	Y	County of Los Angeles owned catch basin located at Olive Drive and Sunset Boulevard.	89				120	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	34.097672  118.376245	Y	34.097672	-118.376245	34.094968	-118.374688					02/12/2024 09:28	Spill flowrate and volume determination based on flowout pickhole or opening 	Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening3inches Flowrate per pickole/opening (gpm)4gpm # of pickholes/openings1 Total flowrate (gpm)4gpm Duration of spill (minutes)34minutes Total flow (gallons)120gallons 	Root Intrusion		Gravity Mainline		Vitrified Clay		89	It was estimated that approximately 120 gallons of sewage backed out of the sewer as a result of the blockage, of that amount, 89 gallons of sewage entered a County of Los Angeles owned catch basin located at Olive Drive and Sunset Boulevard. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		On Monday, February 12, 2024 at 8:54 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1499 North Queens Road (TG 592-J5). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 9:28 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 120 gallons of sewage backed out of the sewer as a result of the blockage, of that amount, 89 gallons of sewage entered a County of Los Angeles owned catch basin located at Olive Drive and Sunset Boulevard. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	Inspected Sewer Using CCTV to Determine Cause		Pipeline Has Been Placed On A Semi-Annual Maintenance Schedule, CCTV Has Revealed Some Defects On The pipeline, That Will Be Addressed By The City On-Call Contractor.		02/12/2024 09:28	On Monday, February 12, 2024 at 8:54 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1499 North Queens Road (TG 592-J5). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 9:28 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 120 gallons of sewage backed out of the sewer as a result of the blockage, of that amount, 89 gallons of sewage entered a County of Los Angeles owned catch basin located at Olive Drive and Sunset Boulevard. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   		None.	02/12/2024 09:28														Not At This Time.	Pipeline Has Been Placed On A Semi-Annual Maintenance Schedule, CCTV Has Revealed Some Defects On The pipeline, That Will Be Addressed By The City On-Call Contractor.	Pipeline Has Been Placed On A Semi-Annual Maintenance Schedule, CCTV Has Revealed Some Defects On The pipeline, That Will Be Addressed By The City On-Call Contractor.	Pipeline Has Been Placed On A Semi-Annual Maintenance Schedule, CCTV Has Revealed Some Defects On The pipeline, That Will Be Addressed By The City On-Call Contractor.	Pipeline Has Been Placed On A Semi-Annual Maintenance Schedule, CCTV Has Revealed Some Defects On The pipeline, That Will Be Addressed By The City On-Call Contractor.	Not At This Time.	Pipeline Has Been Placed On A Semi-Annual Maintenance Schedule, CCTV Has Revealed Some Defects On The pipeline, That Will Be Addressed By The City On-Call Contractor.	On Monday, February 12, 2024 at 8:54 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1499 North Queens Road (TG 592-J5). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 9:28 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 120 gallons of sewage backed out of the sewer as a result of the blockage, of that amount, 89 gallons of sewage entered a County of Los Angeles owned catch basin located at Olive Drive and Sunset Boulevard. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	None.	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	893431	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		02-APR-24	02-APR-24	Monthly Category 3 Spill	12225 West Riverside Drive	02/12/2024 23:06	02/12/2024 23:20	02/12/2024 23:06				On Monday, February 12, 2024 at 11:06 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 12225 West Riverside Drive (TG 562-F3). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 11:39 PM. The cause of the blockage was attributed to Fats, Oils, and Grease (FOG). All necessary clean-up was then performed.	34.157866	-118.399631	Inside Building or Structure		None.	935	Attached.	N	None.	0				935	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	It was estimated that approximately 935 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment in the basement of the property located at 12225 West Riverside Drive and subsequently the entire back up amount was returned to the sewer system.  	Y	34.157866	-118.399631							02/12/2024 23:39	Volume of a spill contained in a rectangular area 	Length25feet Width50feet Depth1inches0.0833feet  104.17ft3779gallons  Length25feet Width10feet Depth1inches0.0833feet  20.83ft3156gallons 	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		74	It was estimated that approximately 935 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment in the basement of the property located at 12225 West Riverside Drive and subsequently the entire back up amount was returned to the sewer system.  	N	Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		On Monday, February 12, 2024 at 11:06 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 12225 West Riverside Drive (TG 562-F3). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 11:39 PM. The cause of the blockage was attributed to Fats, Oils, and Grease (FOG). All necessary clean-up was then performed.  It was estimated that approximately 935 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment in the basement of the property located at 12225 West Riverside Drive and subsequently the entire back up amount was returned to the sewer system.   	Inspected Sewer Using CCTV to Determine Cause		Pipeline Will Be Placed On A Simi-Annual Maintenance Schedule, CCTV Revealed Some Defects That Will Be Addressed By The City On-Call Contractor.		02/12/2024 23:39	On Monday, February 12, 2024 at 11:06 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 12225 West Riverside Drive (TG 562-F3). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 11:39 PM. The cause of the blockage was attributed to Fats, Oils, and Grease (FOG). All necessary clean-up was then performed.  It was estimated that approximately 935 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment in the basement of the property located at 12225 West Riverside Drive and subsequently the entire back up amount was returned to the sewer system.   		None At This Time.	02/12/2024 23:39														None At This Time.	Pipeline Will Be Placed On A Simi-Annual Maintenance Schedule, CCTV Revealed Some Defects That Will Be Addressed By The City On-Call Contractor.	Pipeline Will Be Placed On A Simi-Annual .	Pipeline Will Be Placed On A Simi-Annual Maintenance Schedule, CCTV Revealed Some Defects That Will Be Addressed By The City On-Call Contractor.	Pipeline Will Be Placed On A Simi-Annual Maintenance Schedule, CCTV Revealed Some Defects That Will Be Addressed By The City On-Call Contractor.	Pipeline Will Be Placed On A Simi-Annual Maintenance Schedule, CCTV Revealed Some Defects That Will Be Addressed By The City On-Call Contractor.	Pipeline Will Be Placed On A Simi-Annual Maintenance Schedule, CCTV Revealed Some Defects That Will Be Addressed By The City On-Call Contractor.	On Monday, February 12, 2024 at 11:06 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 12225 West Riverside Drive (TG 562-F3). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 11:39 PM. The cause of the blockage was attributed to Fats, Oils, and Grease (FOG). All necessary clean-up was then performed.  It was estimated that approximately 935 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment in the basement of the property located at 12225 West Riverside Drive and subsequently the entire back up amount was returned to the sewer system.   	None At This Time.	
5S	5SSO11066	Active	Tracy CS	Tracy City	893433	1.4	Certified	Wayne Bogart	Superintendent		06-MAR-24	06-MAR-24	Monthly Category 3 Spill	Kavanaugh and Golden Springs	02/10/2024 10:00	02/10/2024 10:30	02/10/2024 09:45				Water was seeping out of manhole in front of 1821 W. Kavanaugh Ave.. blockage was on Golden Springs Dr. Blockage was due to grease. Sewer crew had just checked that line two weeks before and it was clear and running.	37.73958	-121.426	Manhole			450	Was coming out of manhole in front of 1821 Kavanaugh into gutter ran east to DI at Kavanaugh and Corbett Ln. 	Y	DI was at Kavanaugh and Corbett Ln.	450				450	Street/Curb and Gutter (2 3)		spill was detained at Kavanaugh and Corbett Ln.		36.77826	-119.41793							02/10/2024 10:15	Pictures of flow chart by the crew that responded	Estimation was done by time dispatch called standby to estimated time of arrival and of time flow was stopped	Fats, Oil and Grease (FOG)		Manhole		Vitrified Clay		20	Gutter and DI . 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Stopped flow in gutter by setting up dirt dam Called out the Vaccon opened up flow cleared up line washed down street gutter and DI Washed out storm drain line	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance		Have put area on hot spot list will check out every two weeks		02/10/2024 09:29	Sewer crew checked all the manholes in the area. They could not find any extra grease in the lines checked. This may be a once in awhile dumping of grease so we will continue to monitor the area		Checked area cannot find where grease is coming in at	02/12/2024 09:30														None Grease was in line cannot tell where it is coming from	Have put area on the hot spot list and will check every two weeks.	Every two weeks will check area	None needed line is in good shape	Inspected line 	None needed	On hot spot list	None corrective measures worked as planned	Checked area cannot find where grease is coming in at	
4	4SSO11365	Active	Unincorporated County Area CSMD South/County Sanitation District CS	Los Angeles Cnty DPW	893434	1.4	Certified	Robert Swartz	Sr. CE	13-FEB-24	29-FEB-24	29-FEB-24	Category 1 Spill	2129-0186 (14504 Rimgate Drive, Whittier - Unincorporated County Area)	02/06/2024 11:50	02/06/2024 12:15	02/06/2024 11:00		-		CSMD Map Sheet No. 2129 MMS No. 8649142 Manhole No. 186 was overflowing. 	33.94007	118.0232	Manhole	Manhole No. 186		30	The area was completely clear of any debris that may have been caused by the overflow around M/H 186, therefore made a referral to the Sanitation District. Approximately 15 gallons of sewage spill entered storm drain.	Y	Storm drain	0	15	Approximately 15 gallons of sewage spill entered storm drain, which leads to DDI 009 - La Canada Verde, DDI 009 - 1200' U/S Victoria, BI 0015 - A-2 Sorenson Ave, Water of the OS - Streams, Coyote Creek - North Fork, La Mirada Creek, San Gabriel River.  	15	0	Drainage Conveyance System that discharges to surface water		Upon arrival, the area was completely clear of any debris that may have been caused by the overflow around M/H 186, therefore made a referral to the Sanitation District. Approximately 15 gallons of sewage spill entered storm drain, which leads to DDI 009 - La Canada Verde, DDI 009 - 1200' U/S Victoria, BI 0015 - A-2 Sorenson Ave, Water of the OS - Streams, Coyote Creek - North Fork, La Mirada Creek, San Gabriel River.  	N									02/06/2024 11:30	Visual or eyeball method. 	The start time is obtained from the reporting party, the end time is when the crew clears the obstruction, and the overflow stops. 	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Vitrified Clay		68	N/A	Y	Other Enforcement Agency Notified		The area was completely clear of any debris that may have been caused by the overflow around M/H 186, therefore made a referral to the Sanitation District. 	Other (specify below)	No recommendations due to trunkline blockage.  The Sanitation District was notified. 	No recommendations due to trunkline blockage.  The Sanitation District was notified. 	N/A	02/06/2024 13:00	No recommendations due to trunkline blockage.  The Sanitation District was notified. 	N			Coyote Creek - North Fork, La Mirada Creek, San Gabriel River	River		Coyote Creek - North Fork, La Mirada Creek, San Gabriel River	None	Other (specify below)	No impact.	N/A	0	N	N												
2	2SSO10165	Active	Petaluma City CS	Petaluma City PWD	893436	1.2	Certified	Daniel A Herrera	Deputy Director of Operations	13-FEB-24	16-FEB-24	16-FEB-24	Category 1 Spill	D St at Brows Ct	02/04/2024 14:40	02/04/2024 14:40	02/04/2024 14:40	02/04/2024 16:09	24-0666		See photos attached	38.22626	-122.64074	Manhole	N/A	N/A	8150	Curb and gutter-storm system-outfall at canal-river	Y	curb and gutter-storm system -outfall-canal-river Pie type RCP	0	0	Outfall to canal at F St bridge	8150	0	Drainage Conveyance System; Street/Curb and Gutter (2 3); Surface Water		Gutter-storm system-canal-river	Y	38.2275	-122.63994	38.22705	-122.63552	38.23349	-122.6338			02/04/2024 16:30	Duration and flow rate comparison Method and monitoring	self discovered and monitoring	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Vitrified Clay		83	Exited MH traveled 4	Y	Other (specify below)	Monitored manhole to get flow rate exiting until stopped.	Could not contain due to storm event.	Plan Rehabilitation or Replacement of Sewer		Sewer replacement budgeted for 2025	Project to begin 2025	02/04/2024 16:30	I and I	Y	Through smart lids to narrow down high I and I areas of the system.	04/17/2024 14:39	Petaluma River	River		River channel. Tidal influenced.	no impact witnessed	Other (specify below)	No Public access available.	City of Petaluma	0	N	N											Through smart lids to narrow down high I and I areas of the system.	
5S	5SSO10890	Active	City Of Antioch CS	Antioch City	893437	1.2	Certified	Toby A Beach	Collection System Superintendent		26-AUG-24	26-AUG-24	Monthly Category 3 Spill	2841 Plumleigh Ct	02/02/2024 18:27	02/02/2024 18:45	02/02/2024 18:27				Spill came out of the public clean-out and customer's toilet	37.99384	-121.80859	Inside Building or Structure; Lateral Clean Out (Public)			132	Spill came out of public clean-out onto grass, sidewalk curb, and gutter. All sewer was contained before entering the storm catch basin. Also, came out of renter's toilet.	N						132	Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		The sewer did not extend beyond the curb and gutter.	Y	37.99375	-121.80879							02/02/2024 19:24	This was calculated by area over volume	The tenants notice sewage coming out of clean-out on 2/2/2024 at 18:27. He called the city to notify us and our crew arrived at 18:45.  	Debris-General	Found red cation tape	Gravity Mainline		Vitrified Clay		72	Minor impact localized area to resident bathroom and clean out which was all recovered from our crew.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		I took proactive measures by placing sandbags to prevent sewage from entering the storm catch basin. Following that, we initiated a thorough cleanup process, which included scrubbing and washing the sidewalks and gutters. Additionally, we utilized a vacuum to clear out any sewage around the cleanout area.	Inspected Sewer Using CCTV to Determine Cause		We televised the city sewer line and found approximately 150' of caution tape. Did not see any issues with the city main and no construction work being done near the area.		02/02/2024 19:24	we televised the main line and found a roll of caution tape that caused a stoppage to our main		investigation completed	02/03/2024 10:30														No action was taken due to it being a category 3 	No action needed	N/A	N/A	N/A	N/A	See attached	Crews arrived and opened up the stoppage of the main line, cleaned the spill and then we cctv'd the main line to identify the failure. 	investigation completed	
3	3SSO10287	Active	Marina Coast CS	Marina Coast WD	893443	1.3	Certified	Derek Cray	Operations & Maintenance Manager		22-FEB-24	22-FEB-24	Monthly Category 3 Spill	General Jim Moore/Normandy	02/12/2024 08:20	02/12/2024 08:33	02/12/2024 08:14				Spill originated from a manhole located in a median strip. 	36.63586	-121.81059	Manhole			207	The spill exited the manhole and was mostly contained in the median strip. Once the spill made it to the gutter, it was further contained by using dirt to berm the path. No sewage entered the storm drain. Contaminated dirt was removed by shovel and vactor which was taken to the M1 treatment plant. 	N						207	Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		Sewage was contained in the gutter. The furthest point is identified with the gps coordinates below.	Y	36.63661	-121.81008							02/12/2024 08:37	The spill volume was calculated by gathering information from the reporting party, estimation of the rate of spill from manhole, as well as calculating the total spill path and saturated soil removed. This was on the gravity main which has no scada or telemetry records available.	The estimated start time was gathered from a phone conversation with the reporting party. The spill end time was determined to be at the point when the vactor began to vacuum up the sewage immediately stopping the sso. 	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		58	The spill was mostly contained in the median. Some did make it to the other side of the road but was contained in the gutter using dirt as berms.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow	Mitigated the spill by utilizing the vactor to vacuum the sewage until the jetter was able to reach the blockage and restore flow. 	Crew immediately began to stop the sso by utilizing the vactor unit to vacuum all exiting sewage. The jetting unit was then used to relieve the blockage and restore flow. Once flow was restored cleanup was able to begin.  	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Once the crew was on site the sso was immediately mediated by utilizing the vactor which vacuumed up all sewage exiting the manhole. This location has been added to the trouble spot list with a quarterly maintenance frequency. During the quarterly maintenance, the crew will have the opportunity to evaluate the effectiveness of the maintenance and report on whether the frequency needs to be adjusted or if the main is recommended to be reinspected by the cctv unit.		02/12/2024 10:21	The cctv unit was utilized to investigate the cause of the spill. During the investigation two root balls and grease buildup were discovered. After the findings, the main was jetted several times to ensure all obstructions were removed. This was verified by reinspecting the main with the cctv unit.		The district has a cctv crew assigned to inspect all sewer mains beginning with the largest to smallest. This is to identify and address potential system issues before they become emergencies. 	02/13/2024 16:00														No	The addition to the trouble spot list will allow for quarterly maintenance to help prevent repeated spills. 	location was placed on the trouble spot list with a quarterly maintenance frequency. This location will also be reinspected in 6 month to evaluate the effectiveness of the maintenance and frequency to ensure all is being performed to prevent another sso at this location. Depending on our findings the frequency can then be adjusted if needed.  	Overall, the main was found to be in good condition. 	This asset was Inspected using cctv unit. The inspection took place after the spill was cleared to identify the causing issue, as well as after the issue was resolved to ensure the issue was thoroughly addressed.	Currently, there are no CIP projects proposed for this area.	Location has been added to the trouble spot list with a quarterly maintenance frequency. 	N/A	The district has a cctv crew assigned to inspect all sewer mains beginning with the largest to smallest. This is to identify and address potential system issues before they become emergencies. 	
8	8SSO10591	Active	Orange City CS	Orange City	893444	1.3	Certified	Mike Carney	Environmental Program Manager	20-FEB-24	20-FEB-24	20-FEB-24	Category 1 Spill	2628 N Meridian St	02/13/2024 10:20	02/13/2024 11:15	02/13/2024 11:00		-		Single family resident track homes.	33.83273	-117.8115	Manhole			129	Wastewater spilled from city manhole 769 in public street down N Meridian St gutter to catch basin 07-049 at Waterford St and Courtland St.  	Y	Catch basin 07-049 at Waterford St and Courtland St.  	86	43	Concrete box channel.  	43	86	Drainage Conveyance System that discharges to surface water		The drainage conveyance system drains to the Wanda Channel.   The Wanda Channel's final terminus is the Santa Ana River.	Y	33.83273	-117.8115	33.81402	-117.83245	33.80346	-117.87543			02/13/2024 11:30	man hole pick estimate.	The spill impacted one 3/4  vent hole with a height of 1/2 .  City crews observed the start of the spill and timed the spill to 30 minutes before BMPs were in place and the spill release was stopped.  	Debris-Rags; Root Intrusion		Manhole		Vitrified Clay		35	very minimal if any impact.  43 gallons were lost and commingled with a high volume of residual urban drainage from a recent rain event.  	N	Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		City crews received a work order to investigate a partially blocked sewer main.  City crews observed a restricted flow and request a truck with a jetter.  Crews were not able to clean the line and observed the SSO Starting.  Crews then requested sand, a vacuum street sweeper and a combo truck to clear the line.  the vacuum sweeper arrived half an hour later and immediately started collecting the spill.  The combo truck was able to break through the stoppage around 12:55pm.  	Inspected Sewer Using CCTV to Determine Cause		Contractor jetted the line several times and the line was placed on a list for CCTV inspection.  	CCTV to be completed within the next week.  	02/13/2024 12:55	A basket was used to collect the jetted roots, rags, and pool plaster.  	N	n/a		Santa Ana River	River		an engineered flood controlled river 	none	Other (specify below)	no impact.	public access was not closed. 	0	N	N	n/a	n/a									n/a	
7	7SSO10519	Active	Imperial City CS	Imperial City	893445	1.1	Certified	Christopher Kemp	Chief Wastewater Operator		13-FEB-24	13-FEB-24	Monthly Category 3 Spill	East Aten Road & Legakes Avenue	02/12/2024 18:34	02/12/2024 18:45	02/12/2024 00:40				Southwest corner of N Aten Road and Legakes	32.82531	-115.54467	Other (specify below)	Pressure relief valve		300	Just outside of pumpstation in dirt area.	N						300	Unpaved Surface		No additional destination.		32.82543	-115.54461							02/12/2024 18:45	Pump run times, flow calculations, and visual estimation.	Earthquake caused air relief nipple to crack; USGS published time of earthquake for public record.	Natural Disaster (specify below)	Earthquake	Air Relief Valve (ARV)/ Blow-Off Valve (BOV)		Galvanized Steel		19	Sewage and contaminated soil was hydro excavated and removed from area.  Sewage did not leave City property.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		Containment not necessary, as it was already contained on City property.  Spill was removed with vacuum truck and dumped at the wastewater treatment facility.  Soil was then sprayed down and disinfected with chlorinated water as a precaution.	Other (specify below)	Search for better materials that will better withstand an earthquake.	Search for better materials that will better withstand an earthquake.		02/12/2024 23:30	Earthquake caused a break in the nipple mounting an air release valve associated with a force main.  Leak was luckily small and only leaked while pumps were running.		Check integrity and vulnerability of other force main air release valves.  Research other products and replace with valves recommended for earthquake areas. 	02/12/2024 23:30														N/A	Search for better materials that will better withstand an earthquake.	N/A	Replace cast iron air release valve with plastic release valve, in order to prevent breakage during earthquake.	Air Release Valve and coupling replaced.	Replace air release valves with lighter units to prevent breakage during an earthquake.	APCO 150 PSI Cast Iron Valve replaced with ARI Plastic Valve D-025 150 PSI maximum. 	More detailed inspection of all sewer system parts required after a natural disaster.	Check integrity and vulnerability of other force main air release valves.  Research other products and replace with valves recommended for earthquake areas. 	
3	3SSO10250	Active	Guadalupe City CS	Guadalupe City	893448	1.2	Certified	David R Miklas	Wastewater Supervisor	14-FEB-24	01-MAR-24	01-MAR-24	Category 1 Spill	1079 Peralta Street	02/09/2024 22:12	02/09/2024 23:00	02/09/2024 22:00	02/10/2024 10:30	24-0864		Manhole in front of 1079 Peralta St, Guadalupe  CA 	34.970696	-120.567406	Manhole			907	The street surrounding the manhole and sloped toward sidewalk gutter. Approximately 44 feet by 1.5 feet of the gutter with a depth of 2 inches. 22 feet from the top of the spill to the gutter by 12 feet wide.  Also 42 feet by 10 feet section down the center of the street. 	Y	Storm drain leading 2000 feet to riverbed.	0	25	Storm drain leading 2000 feet to riverbed.	25	882	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		The street surrounding the manhole and sloped toward sidewalk gutter. Approximately 44 feet by 1.5 feet of the gutter with a depth of 2 inches. 22 feet from the top (east) of the spill to the gutter (on the west side of the street) by 12 feet wide.  Also 42 feet by 10 feet section down the center of the street to the south. The spill was mostly contained to the street and gutter. About 25 gallons entered a storm drain in the gutter north of the spill. 	Y	34.970698	-120.567405							02/09/2024 22:00	The area was measured. The maximum depth observed was 2 inches. This depth was used for the entire area to determine the volume of the spill. The amount of spillage in the storm drain was estimated at five, five gallon buckets.	City Public Works staff called at 10:09 and informed of a manhole  bubbling . Public Works staff called Wastewater staff at 10:12. Public Works staff arrived on site at 10:25 to set up cones to close off street and the manhole was not flowing any more.  	Debris from Construction		Manhole		Polyvinyl Chloride (PVC)		35	Temporary road closure. 25 gallons of sewage in storm drain.	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Returned Portion of Spill to Sanitary Sewer System		Closed road to traffic. Use a vacuum truck to suck up spilled sewage. Disinfected area with bleach.  Used potable water wash bleach off road and gathered with vacuum truck.  Notified:  Santa Barbara county Sheriff Department OEC CUPA 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Jetted lines downstream to ensure proper flow. 	CCTV to determine cause planned for 3//5/2024.	CCTV to determine cause planned for 3//5/2024.	02/10/2024 02:30	There looked to be concrete and a lot of grit at the bottom of the manhole. There has been construction at the school next to this manhole. We are going to CCTV the line on 3/5/2024.	Y	There looked to be concrete and a lot of grit at the bottom of the manhole. There has been construction at the school next to this manhole. We are going to CCTV the line on 3/5/2024.	03/05/2024 09:30	Santa Maria River	River		Dry riverbed	None	Other (specify below)	None	none	0	N	N											There looked to be concrete and a lot of grit at the bottom of the manhole. There has been construction at the school next to this manhole. We are going to CCTV the line on 3/5/2024.	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	893455	1.1	Certified	David Leamer	Assistant Superintendent		27-FEB-24	27-FEB-24	Monthly Category 3 Spill	337889	01/21/2024 10:35	01/21/2024 10:35	01/21/2024 10:35				See Attachment, Spill Map and Photos	38.61647	-121.33216	Lateral Clean Out (Public); Manhole	N/A	Spill from SacSewer cleanout & manhole	394	See Attachment, Spill Map and Photos	Y	See Attachment, Spill Map and Photos	367				381	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		See Attachment, Spill Map and Photos	Y	38.61669	-121.33208	38.61632	-121.33449					01/21/2024 12:03	See Attachment, Spill Volume Estimation.	See Attachment, Spill Volume Estimation.	Debris-General		Gravity Mainline		Vitrified Clay		58	No observed impact of spill	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		SacSewer Jetted from top of ds mh to us mh with penetrator then followed up with bulldog for heavy debris. Cleaned up spill with hydro vac. cleaned up recoverable spill on lawn, sidewalk, curb/gutter and street by jetting and vacuuming simultaneously.    cleaned up all spill in storm drain system by jetting and vacuuming simultaneously. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected mainline with CCTV on 1/29/24. Based on findings, SacSewer increased preventative cleaning frequency to 12 months from 24 months.		01/21/2024 14:30	Jetted from top of ds mh to us mh with penetrator then followed up with bulldog for heavy debris. SacSewer crews used a hydro-vacuum truck to rinse and clean the affected above-ground surfaces and storm drain system from the DI West of 5700 Marconi Avenue and North of Tristan Drive to the SDMH in 5600 Marconi Avenue.		None	01/21/2024 14:30														N/A	increased SacSewer preventive cleaning frequency from 24 months to 12 months.	SacSewer increased preventive cleaning frequency from 24 months to 12 months.	N/A	SacSewer inspected mainline with CCTV on 1/29/24.	N/A	SacSewer increased preventive maintenance frequency on 2/27/24	None	None	
4	4SSO10437	Active	Temple City CS	Temple City	893459	1.2	Certified	Robert Swartz	Sr. CE	14-FEB-24	23-FEB-24	23-FEB-24	Category 1 Spill	2071-0665 (4803 Ryland Avenue, Temple City)	02/09/2024 15:20	02/09/2024 15:35	02/09/2024 14:57		-		CSMD Map Sheet No. 2071 MMS No. 8651560 Manhole No. 665 was overflowing.	34.09121	118.04681	Manhole	Manhole No. 665		300	Sewage was overflowing from Manhole No. 665 onto the street.  The spill entered a storm drain at 4803 Ryland Avenue, Temple City.	Y	The spill entered a storm drain at 4803 Ryland Avenue, Temple City, which leads to BI 9606 - Line D, BI 0027 - Line A, Eaton Wash - Eaton Dam to Rio Hondo Wash, Rio Hondo Channel - Peck Rd SB to Rosemead Blvd., Rio Hondo Channel @ Whittier Narrows Dam, Stream, Natural Drainage, Rio Hondo Channel. 	0	0	The spill entered a storm drain at 4803 Ryland Avenue, Temple City, which leads to BI 9606 - Line D, BI 0027 - Line A, Eaton Wash - Eaton Dam to Rio Hondo Wash, Rio Hondo Channel - Peck Rd SB to Rosemead Blvd., Rio Hondo Channel @ Whittier Narrows Dam, Stream, Natural Drainage, Rio Hondo Channel. 	300	0	Drainage Conveyance System that discharges to surface water		The spill entered a storm drain at 4803 Ryland Avenue, Temple City, which leads to BI 9606 - Line D, BI 0027 - Line A, Eaton Wash - Eaton Dam to Rio Hondo Wash, Rio Hondo Channel - Peck Rd SB to Rosemead Blvd., Rio Hondo Channel @ Whittier Narrows Dam, Stream, Natural Drainage, Rio Hondo Channel, and eventually to Los Angeles River. 	Y	34.09117	-118.04705							02/23/2024 15:40	CWEA SSCSC Manhole Gauge.	The start time is obtained from the reporting party, the end time is when the crew clears the obstruction, and the overflow stops.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		74	N/A	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow		Upon arrival, Manhole No. 665 was found overflowing. Hydro jet equipment was utilized to clean the mainline heavy grease blockage. We proceeded to clean the curb, gutter, and the surrounding area with fresh water.  All required agencies were notified.	Other (specify below)	Will inspect the mainline via CCTV to determine if further action is needed.	Will inspect the mainline via CCTV to determine if further action is needed.	N/A	02/09/2024 16:50	Will inspect the mainline via CCTV to determine if further action is needed.	Y	Will inspect the mainline via CCTV to determine if further action is needed.	04/09/2024 13:23	Rio Hondo Channel, and eventually to Los Angeles River	River		Rio Hondo Channel, and eventually to Los Angeles River	None.	Other (specify below)	No impact.	N/A	0	N	N											Will inspect the mainline via CCTV to determine if further action is needed.	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	892276	2.1	Amended	Kent Vian	Asst. Deputy Director	23-JAN-24	14-FEB-24	14-FEB-24	Category 1 Spill	NOT# 40201055600 337 W. 35TH ST. (SMO3)	01/22/2024 12:06	01/22/2024 12:45	01/22/2024 12:03	01/22/2024 12:41	24-0369	07-MAR-24	THE SPILL ORIGINATION HAD MULTIPLE SPILL APPEARANCE POINTS ALONG HARBOR DR.	32.65112	-117.10154	Inside Building or Structure; Manhole	N/A	SPILL APPEARANCE POINT FROM MANHOLES AND LATERALS. LATERALS                                    EQ# 700 W. HARBOR DR.                   10661724 1202 KETTNER BLVD.                  10885477 875 W. CEDAR ST.                       10883890 2734 LYTTON ST.                        10113494 4236 VENUS ST.                          10970758 601 PACIFIC HWY.                       10638242 780 W. G ST.                                10474394 820 W. G ST.                                10474390 925 WATERFRONT PL.                  NO EQ# 2838 KEATS ST.                            10071590 1205 PACIFIC HWY.                     10638294  MANHOLES 2710 N. HARBOR DR.                  10255357 337 W. 35TH ST. (SMO3)             10758386 W. HARBOR DR. & KETTNER BL. 10243219 680 W. HARBOR DR.                   10662200  A ST. & PACIFIC HWY                   10027964                          	2000000	THE SPILL STARTED AS FAR SOUTH AS 337 W. 35TH ST. TO AS FAR NORTH AS 2734 LYTTON ST.	Y	THE SEWER DRAINAGE CONVEYANCE SYSTEM HEADED SOUTHWEST AND SPILLED INTO SAN DIEGO BAY.	0	0	THE DISCHARGE POINTS INTO SAN DIEGO BAY WERE NORTH OF SEAPORT VILLAGE, SOUTH SEAPORT VILLAGE AND (SMO3) 337 W. 35TH ST.	1900000	100000	Building or Structure; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface	N/A	SPILL APPEARANCE POINTS WERE FROM AS FAR SOUTH AS 337 W. 35TH ST. (SMO3) TO AS FAR NORTH AS 2734 LYTTON ST.                        10113494.	Y	32.651	-117.10187	32.72712	-117.18189	32.71148	-117.16912	32.74293	-117.21003	01/22/2024 15:50	SPILL VOLUME ESTIMATIONS WERE CALCULATED USING A VISUAL CALCULATED METHOD AND ENGINEERING ESTIMATE BASED UPON FLOW MODELING AND FLOW METER DATA.	METHODOLOGIES WERE USED TO ASSUME SPILL START TIME IN FLOW METER DATA AND VISUAL OBSERVATIONS OF THE SPILL.	Flow Exceeded Capacity (Separate Collection System Only); Natural Disaster (specify below); Rainfall Exceeded Design, I and I (Separate Collection System Only); Vandalism (specify below)	THE VANDALISM WAS CAUSED BY CITIZENS AND OTHER WELL-DOERS WHO OPENED COLLECTION SYSTEM MANHOLES TO RELIEVE FLOODING OF STREETS AND HOMES. THE CITY AND COUNTY OF SAN DIEGO SUFFERED A HISTORIC RAIN EVENT OF A 1,000-YEAR STORM. THE EVENT DROPPED A HISTORIC 3� OF RAIN IN THREE HOURS, CAUSING SEVERE FLOODING AND INFLOWS TO THE WASTEWATER CONVEYANCE SYSTEM, OVERWHELMING THE SYSTEM AND CAUSING OVERFLOWS.	Lower Lateral; Manhole; Other (specify below)	SYSTEM-DESIGNED OVERFLOW STRUCTURES TO RELIEVE THE SYSTEM OF SURCHARGE WHEN INFLOW EXCEEDS SYSTEM DESIGN CAPACITY.	Concrete; Polyvinyl Chloride (PVC); Vitrified Clay	N/A	60	THE IMPACTS OF THE SPILL WERE TO SURFACE WATERS.  NO OTHER ADVERSE EFFECTS NOTED AT THIS TIME.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	SPILL RESPONSE ACTIVITIES WERE TO MONITOR THE SEWER RELEASE FROM THE OVERFLOW STRUCTURES, MANHOLES AND LATERALS UNTIL THE CATASTROPHIC RAIN EVENT ENDED AND THE SURCHARGED COLLECTION SYSTEM CAUGHT UP TO CONVEY FLOW. CLEAN-UP EFFORTS WERE CONDUCTED 1/23/2024 USING BYPASS PUMPING, VACCUM TRUCKS AND RESTORATION CONTRACTORS.	Other (specify below)	WAITED FOR THE CATASTROPHIC RAIN EVENT TO END AND FOR THE SURCHARGED COLLECTION SYSTEM TO CATCH UP.	TBD	TBD	01/22/2024 18:00	CATASTROPHIC RAIN EVENT	Y	TO VALIDATE DATA	05/06/2024 23:59	SAN DIEGO BAY, SWEETWATER RIVER, SAN DIEGO RIVER, PACIFIC OCEAN.	Ocean; River	N/A	THE PACIFIC OCEAN IS ONE OF SEVEN OCEANS THAT COVER NEARLY THREE-FOURTHS OF THE SURFACE OF THE EARTH. THE SAN DIEGO RIVER IS A PERENNIAL RIVER WITH AN ANNUAL MEAN FLOW OF 117 CFS, A MEAN VELOCITY OF 1.45 F/S AND FLOWS FROM THE SANTA YSABEL MOUNTAINS TO THE PACIFIC OCEAN. 	NO KNOWN IMPACTS TO AQUATIC LIFE.	Public Closure	N/A	DEPARTMENT OF ENVIORNMENTAL HEALTH	6	N	Y	SEE ATTACHED	SEE ATTACHED									TO VALIDATE DATA	
4	4SSO10388	Active	Glendale City CS	Glendale City	893460	1.2	Certified	Dan Hardgrove	Assistant Director of Public Works	15-FEB-24	15-FEB-24	15-FEB-24	Category 1 Spill	315 N. Louise St. Glendale, CA. 91206	02/13/2024 10:06	02/13/2024 10:20	02/13/2024 07:00	02/13/2024 13:40	24-0925		Subterranean parking lot contained most of the spill, shows wetted area.  Laundry room and boiler room floors were flooded but drained back down to the floor drains.                   	34.15036	-118.25294	Inside Building or Structure			1544	Subterranean parking garage, including laundry room and boiler room.	Y	Storm Drain Catch Basin.	0	210	Discharge point was a curb drain connected to the sump pump of the subterranean parking garage.	210	1334	Building or Structure; Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Drainage conveyance system discharged into L.A. River. See attachment of storm drain drainage map.	Y	34.12112	-118.26971							02/13/2024 10:30	Estimate of wetted volume area in subterranean parking garage. Length 95.5' x Width 22.5' x Depth .083' = 178 ft3 x 7.48 gals = 1,334 Curb Drain Discharge of about 1 gpm for 210 minutes = 210 gallons. Total Spill Volume Estimate:1,334 gals + 210 gals = 1,544 gallons  All of the sewage in the subterranean parking garage was recovered with combo unit and private restoration company.	Total Spill Volume 1544 gals. -  1,334 gals Volume of wetted area recovered = 210 gals.  The combo unit recovered spill at the gutter line was weighed to get volume estimate. See attachment printout of the scale. Restoration Company recovered spill and drained it back into the sewer lateral clean-out. 	Collection System Maintenance Failure (specify below); Debris-Rags; Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		98	An estimated 210 gallons of untreated sewage flowed to the L.A. River.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Set up vacuum truck in front of receiving storm drain catch basin to recover spill. Hydro Flusher Truck relieved stoppage in the sewer mainline, completed post CCTV inspection. Vacuum Truck stayed with the restoration company during the cleanup to continue to recover from the curb drain. 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Possible increased frequency of preventive maintenance based on circumstances-pending review. 	See item 10 a. above.	Trouble Spot Review for Tuesday 2/20/2024 at 7:00 a.m.	02/13/2024 14:38	Post CCTV inspection discovered heavy roots downstream of 315 N. Louise St.	N			Los Angeles River	River		Large water way channel with concrete bottom. Constructed by Army Corps of Engineers.	No observations made.	Other (specify below)	These drainage systems are not accessible to the public. 	N/A	0	N	N												
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	893461	1.2	Certified	Daniel Whitlock	Manager	14-FEB-24	08-MAR-24	08-MAR-24	Category 2 Spill	111 Santa Paula 	02/08/2024 08:00	02/08/2024 08:30	01/31/2024 08:00		-		Pooling in backyard and flowing out of a gopher hole IFO 110 	37.7378	-122.46285	Manhole		Backyard and front yard of 111 Santa Paula Ave. Driveway and backyard of 120 Santa Monica Ave. Backyard of 101 Santa Paula Ave.	162900	Manhole N-19094 was high and overflowed on soil in backyard of 111 Santa Paula. Also traveled through gopher hole to driveway of 120 Santa Monica. Backyard of 101, 120 Santa Monica as well as 111 Santa Paula. H&H model shows two other manholes (N-35855 and N-67241) caused spills on 1/31/2024 from 7:30-8:10 pm.	N						130320	Other (specify below); Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface	Combined Storm Drain	Manhole N-19094 was high due to blockage in asset 6  P-88146 and overflowed on soil in backyard of 111 Santa Paula. Also traveled through gopher hole to driveway of 120 Santa Monica. Backyard of 101, 120 Santa Monica as well as 111 Santa Paula. H&H model shows two other manholes (N-35855 and N-67241) caused spills on 1/31/2024 from 7:30-8:10 pm.	Y	37.73778	-122.46296	37.73792	-122.46327	37.73751	-122.46282	37.73801	-122.4632	02/08/2024 11:40	H&H Hydraulics	Estimated that 20% if the spill was absorbed by the ground.  162900 gal * (0.2) = 32580 gal 162900 gal - 32,580 gal = 130,320 gal recovered	Root Intrusion		Gravity Mainline		Other (specify below)	I.S.P	118	Sewage in areas of residences affected. No claims currently made.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow		Wash down sidewalk and driveway of 120 Santa Monica and cleaned storm drain N-341002 along with parking strip up to 120 property line. Bagged up any heavy debris in backyards around manhole.	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect		CCTV pipe. Root intrusion verified via repair on 2/27/24. Repair WO 8281291 to repair P-88146 completed on 2/27/2024.	Spill start: 1/31/2024 Spill end: 2/8/2024 Spot repair of asset P-188146 completed: 2/27/2024 (WO 8281291) Follow up Inspection for full condition of pipe past spot repair: completed 3/1/2024 (WO 8279170) WO 8312630 for additional repairs of P-188146: Waiting to be scheduled	02/08/2024 13:00	Line past the point of original defect was full of roots and defects. Follow up WO for repair is 8312630.	Y	Awaiting completion of WO 8312630 for repair.	03/15/2024 17:00										N												Awaiting completion of WO 8312630 for repair.	
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	893462	1.3	Certified	Daniel Whitlock	Manager	14-FEB-24	21-FEB-24	21-FEB-24	Category 2 Spill	1000 Ashbury	02/08/2024 11:00	02/08/2024 12:00	02/04/2024 19:00		-		Yes came from manhole ran down stairs /Easement 	37.76401	-122.44593	Manhole			21600	yes	N						21000	Other (specify below); Paved Surface	Was contained into combined sewer catch basin. Asset I.D# N-56381	Spill originated from main sewer on easement asset ID P-78796 and flowed between 179 Clifford Terrace and 1000 Ashbury St.	Y	37.76387	-122.44598	37.76395	-122.44598	37.76406	-122.44592	37.76418	-122.44604	02/09/2024 13:30	Duration and Flow 	Spill start at 8am on 2/4/24 Spill end at 1:30pm on 2/9/2024  rate = 3 gallons/min  7200min x 3 gal/min = 21600 gallons	Debris-General		Gravity Mainline		Other (specify below)	VCP	184	Spill flowed down concrete stairs and organic debris on or around stair area into a catch basin. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Restored Flow	Returned all spill to combined sewer.	Flushed asset #P-78796. Relieved blockage and restored flow. Hosed down stairs and sidewalk and washed with disinfectant.	Inspected Sewer Using CCTV to Determine Cause		Other than debris that was causing blockage, CCTV found no other issues with the pipe.	N/A	02/09/2024 13:30	Once debris was removed and flow restored, cctv found that there were no other issues with the pipe.	N												N													
5R	5SSO10801	Active	Redding City CS	City of Redding	893280	3.1	Amended	Joshua Vandiver	Wastewater Utility Manager	05-FEB-24	14-FEB-24	14-FEB-24	Category 1 Spill	Clear Creek Wastewater Treatment Plant	02/04/2024 23:17	02/04/2024 23:40	02/04/2024 23:32	02/05/2024 07:03	24-0681	13-MAR-24	Power loss at the treatment plant. The backup generator started as designed, however, the pumps went into alarm and would not clear until the operator acknowledged the alarm. Flow surcharged both influent pump stations wet wells, then the collection system before reaching the overflow structure into Clear Creek.  Power was off at 23:17, surcharge happened until 23:32 when overflow began.  The operator arrived at 23:40, pumps were fully operational and overflow stopped at 23:51.	40.50483	-122.36914	Other Sewer System Structure	Overflow gate from treatment plant influent pump station.		467213	Overflow gate from treatment plant influent pump station, discharges into Clear Creek, approximately 175 feet from confluence of the Sacramento River	N				The overflow structure sits adjacent to Clear Creek, which is a tributary to the Sacramento River.	145837	0	Other (specify below)	Overflow structure of treatment plant influent pump station	discharged directly into Clear Creek, approximately 175 feet from main channel entrance of Sacramento river	Y	40.5049	-122.36887							02/04/2024 23:55	Flow rate into the plant was taken and broken down to gallons per minute. When level in the wet well reached the overflow elevation, it leveled off.  Once pumps were able to restart and pump the level down below the overflow elevation, the spill ceased.	SCADA historian data, showing when power went off, influent flow rate, pumping rate, as-built drawings depicting elevations and capacities of infrastructure, (wet well and collection system) as well as elevations of piping and overflow structure.  	Pump Station Failure - Controls; Pump Station Failure - Mechanical; Pump Station Failure - Power	Power outage Level probe failure Pump control Programming failure	Other (specify below)	Overflow structure constructed as part of original influent pump station design, circa 1966.	Other (specify below)	concrete vault with a steel hinged flap gate	58	Spill discharged directly into Clear Creek, which meets the Sacramento river.  Discharge was unrecoverable as flows in the creek and river are flowing at very high seasonal rates. (Photo attached)	Y	Other (specify below); Other Enforcement Agency Notified; Restored Flow	Operations staff responded to the station, cleared all alarms, started all pumps in hand and locked generator in  on  position to ensure stable power.	Spill discharged directly into Clear Creek, which meets the Sacramento river.  Discharge was unrecoverable as flows in the creek and river are flowing at very high seasonal rates. (Photo attached)	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below)	Complete reprogramming of logic controllers at influent pump station. Replaced level transducer in the station.   Installing backup level sensors in both wet wells.   Installing emergency  high-level sensors  with programming changes to PLC logic control to override alarm delays, eliminating human acknowledgment of alarms before pumps can resume operation.  Reprogramming logic controllers with  E-Run  mode based on  high-high  backup level float system. Change the programming of generator logic to lock in on generator power for a minimum run time of 30 minutes before looking for shore power. 	Install level sensor in influent structure to identify high level independently of wet well level, as an extra back-up.  This sensor will be used as the override to start the  E-Run  process.	Changes are being implemented immediately.	02/05/2024 10:00	Wind storm caused public power to fault.  Emergency generator started and powered up location. As public power came on and off, ATS switched load back to shore power and back to generator power repeatedly.  Pump controllers went into alarm and  locked up , pumps would not restart.  Level transducer on second pump station failed, therefore not registering a high level condition and not calling for pumps. Operations staff was notified as soon as power was disrupted and responded to the site within 25 minutes of receiving the call and had all pumps running within 6 minutes of arriving. 	N			Sacramento river via Clear Creek	River		Sacramento River, south of Redding, north of Anderson	None observed	Other (specify below)	Spill was at the upstream end of the treatment plant property, which is fenced and limits public access for approximately 1.25 miles of riverbank downstream	NA	0	N	Y	DSC-001 Plant Headworks RSW-001 SSO Location RSW-001U 50' upstream of SSO Location RSW-001D Downstream of SSO Location (Located at R1 sample	EC, pH, Temp, DO, Ammonia, Total Coliform, E-Coli										
1	1SSO10058	Active	Rio Dell City CS	Rio Dell City	892020	2.1	Certified	Sunshine Kelly	Wastewater Superintendent		14-FEB-24	14-FEB-24	Category 1 Spill	End of Painter Street Manhole	01/13/2024 10:00	01/13/2024 10:00	01/13/2024 10:00	01/13/2024 11:55	24-0204	23-JAN-24	The spill was located at the Painter Street manhole at 556 Painter St. Photos attached show spill location.	40.503117	-124.093756	Gravity Mainline; Manhole			81000	The spill was located at the Painter Street manhole and flowed down the gravel ditch away from the residential area toward the Eel River, river bar. Photos show the sandbags, and ditch in place to direct the flow.	N				Photographs show that the spill during daylight hours never made it to the river. Due to the rain accumulation the river rose to meet the spill in the late hours of the evening of 1-13-24. No pictures were taken of the river at this time due to the dark hours and unsafe weather conditions.	81000	0	Surface Water		The spill reached the Eel River, river bar, located at 40.503055, -124.091890	Y	40.503055	-124.09189							01/13/2024 21:00	The volume estimation was based on flow monitoring at the site as well as supervisory control from SCADA based on the trend of the Painter Street lift station wet well level and pump control and the influent flow data into the plant.	The methodology of the spill start time was based on supervisory control based on SCADA of the data collected on the Painter Street Pump station trend, and the rain gauge at the Wastewater treatment plant. We were prepared for the event and had sandbags, and signs placed at the site to respond as soon as it started.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Other (specify below)	The failure is that the sanitary sewer main at this location was constructed with a 90 degree turn at this manhole and the earthquake in December of 2022 destroyed private laterals allowing more I&I to enter this portion of the sanitary sewer system. An upsizing project for this section of the sanitary sewer system is in the works since 2019 and will hopefully see some forward momentum with state funding this spring and summer, before the next wet season.	20	Spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage and the property owners were made aware of the issue at this site location.	Y	Cleaned Up (specify below); Property Owner Notified	During and after spill the area was monitored to keep clean if there were any sewage debris. There were no debris that were noted.	Spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage was in place, property owners were notified and personnel frequently monitored at this site location.	Plan Rehabilitation or Replacement of Sewer		This site has a planned upsizing project in the planning phases for the past 6 years. Currently waiting on State funding to push the design process forward.	Meeting with the State Water Control Board and Engineering company GHD on January 24th, 2024, to discuss funding and scheduling of such.	01/13/2024 21:00	This SSO occurred due to the high levels of I&I. Several days of rain and saturation of the ground caused the pump station to become overwhelmed when large amount of rain occurred at once and caused the SSO at this location, the Painter Street manhole.	N			Eel River	River		The Lower Eel River.	No known observed impacts on aquatic life.	Public Closure		City of Rio Dell Wastewater Superintendent and the City of Rio Dell P.D.	2	N	Y	A sample was taken upstream in the river of the spill location; RSW-001U: Latitude/Longitude (40.496013, -124.093796) A sample was taken directly from the manhole at 556 Painter Street; RSW-001: Latitude/Longitude (40.503117, -124.093756) A sample was taken downstream in the river of the spill location; RSW-001D: Latitude/Longitude (40.508887, -124.111481)	Per the City of Rio Dell SSO Water Quality Monitoring Plan Samples were analyzed for E.coli and Ammonia.										
8	8SSO10587	Active	Michelson WRP CS	Irvine Ranch Water District	893466	1.3	Certified	William Kleinau	Collection Systems Manager	14-FEB-24	28-FEB-24	28-FEB-24	Category 1 Spill	Culver and University	02/14/2024 08:50	02/14/2024 09:10	02/13/2024 17:51	02/14/2024 09:52	24-0945		Report in progress and will be attached with analysis 2/28/24.	33.65692462244	-117.827260649375	Manhole			16810	Spill exited sewer maintenance hole within IRWD service area and discharged to turtle ridge trail area entering Sand Canyon Wash and proceeded west along University Drive and ultimately discharged to the San Diego Creek. See attached report for photographs.	Y	33�39'25.5 N 117�49'38.7 W - Meets drainage conveyance San Canyon Wash 33�39'16.9 N 117�49'32.1 W - Discharge Sewer Maintenance Hole 33�39'24.4 N 117�49'13.1 W - Upstream Collection Point 33�39'26.0 N 117�50'18.9 W - Downstream Collection Point See attached report for photographs.	2000	9005	33�39'25.5 N 117�49'38.7 W - Meets drainage conveyance San Canyon Wash.  See attached report for photographs.	1805	6000	Drainage Conveyance System that discharges to surface water; Surface Water; Unpaved Surface		See Attachment. 	Y	33.6547	-117.8255							02/14/2024 09:30	See Attachment.	See Attachment.	Vandalism (specify below)		Other (specify below)	See Attachment.	Vitrified Clay		49	See Attachment.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	See Attachment.	See Attachment.	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	See Attachment.	See Attachment.	See Attachment.	02/15/2024 15:00	See Attachment.	N			San Diego Creek, Sand Canyon Wash	Stream/Creek; Wash		See Attachment.	See Attachment.	Other (specify below)	See Attachment.	Orange County Health - Environmental Health Division	0	N	Y	See Attachment.	See Attachment.										
1	1SSO10058	Active	Rio Dell City CS	Rio Dell City	892223	2.1	Certified	Sunshine Kelly	Wastewater Superintendent		15-FEB-24	15-FEB-24	Category 1 Spill	End of Painter Street Manhole	01/20/2024 06:30	01/20/2024 08:00	01/20/2024 06:30	01/20/2024 08:13	24-0326	25-JAN-24	The spill was located at the Painter Street manhole at 556 Painter St. Photos attached show spill location. 	40.503117	-124.093756	Manhole			63000	The spill was located at the Painter Street manhole and flowed down the gravel ditch away from the residential area toward the Eel River, river bar. Photos show the sandbags, and ditch in place to direct the flow away from the residential area. 	N				Photographs show the spill stream running toward the river. Due to the extreme rain, my phone got wet and would no longer take pictures once I reached where the spill stream that combined with rain run off to reach the Eel River.	63000	0	Surface Water		The Spill flowed to the river at Latitude/ Longitude: 40.503055, -124.091890.	Y	40.503055	-124.09189							01/20/2024 17:30	The volume estimation was based on flow monitoring at the site as well as supervisory control from SCADA based on the trend of the Painter Street lift station wet well level and pump control and the influent flow data into the plant.	The methodology of the spill start time was based on supervisory control based on SCADA of the data collected on the Painter Street Pump station trend, and the rain gauge at the Wastewater treatment plant. We were prepared for the event and had sandbags, signs placed at the site to respond as soon as it started.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Other (specify below)	The failure is that the sanitary sewer main at this location was constructed with a 90 degree turn at this manhole and the earthquake in December of 2022 destroyed private laterals allowing more I&I to enter this portion of the sanitary sewer system. An upsizing project for this section of the sanitary sewer system is in the works since 2019 and will hopefully see some forward momentum with state funding this spring and summer, before the next wet season.	55	Spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage and the property owners were made aware of the issue at this site location.	Y	Cleaned Up (specify below)	During and after spill the area was monitored to keep clean if there were any sewage debris. 	Spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage was in place, property owners were notified and personnel frequently monitored at this site location.	Plan Rehabilitation or Replacement of Sewer		This site has a planned upsizing project in the planning phases for the past 6 years. Currently waiting on State funding to push the design process forward.	Meeting with the State Water Control Board and Engineering company GHD on January 24th, 2024, provided some comfort that the State would approve the funding of this project, and the City of Rio Dell can start the design process. 	01/20/2024 17:30	This SSO occurred due to the high levels of I&I. Several days of rain and saturation of the ground caused the pump station to become overwhelmed when large amount of rain occurred at once and caused the SSO at this location, the Painter Street manhole.	N			Eel River	River		The Eel River is a large river that runs north on the east side of the City of Rio Dell.	No known observed impact on aquatic life.	Temporary Restricted Use		City of Rio Dell Wastewater Superintendent and the City of Rio Dell P.D.	2	N	Y	A sample was taken upstream in the river of the spill location; RSW-001U: Latitude/Longitude (40.496013, -124.093796). A sample was taken where the spill stream enters the Eel River; RSW-001: Latitude/Longitude (40.503055, -124.091890). A sample was taken downstream in the river of the spill location; RSW-001D: Latitude/Longitude (40.508887, -124.111481) 	Per the City of Rio Dell SSO Water Quality Monitoring Plan Samples were analyzed for E.coli and Ammonia.										
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	893471	1.2	Certified	John J. Hough	San Dist. Superintendent	15-FEB-24	23-FEB-24	23-FEB-24	Category 1 Spill	338751	02/10/2024 14:36	02/10/2024 15:16	02/10/2024 12:36	02/10/2024 18:07	24-0866		See Attached Spill Map with Photos	38.3157	-121.4202	Manhole			10520	See Attached Spill Map with Photos	Y	See Attached Spill map with Photos	3200	0	See Attached Spill Map with Photos	7298	3211	Drainage Conveyance System that discharges to surface water; Paved Surface; Surface Water; Unpaved Surface		See Attached Spill Map with Photos	Y	38.3157	-121.4202	38.31577	-121.42014	38.3159	-121.42013	38.3159	-121.42032	02/10/2024 15:49	See Attached Spill Volume Estimation	See Attached Spill Volume Estimation	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure		Air Relief Valve (ARV)/ Blow-Off Valve (BOV)		Acrylonitr. Butadiene Styrene (ABS)		23	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified Sacramento County Water Resources O&M and Sacramento County EMD.	See Attached Description of Spill Event	Repaired Facilities or Replaced Defect		SacSewer replaced the CARV on February 13, 2024.	SacSewer replaced the CARV on February 13, 2024.	02/10/2024 18:32	See Attached Description of Spill Event	N			Unnamed Canal Ditch	Other (specify below)	Canal Ditch	Earth lined ditch with stagnant flow.	No observed impacts to aquatic life	Other (specify below)	No public access impacts.	NA	0	N	N												
4	4SSO11447	Active	Calabasas City CS (SSO)	Calabasas City	893472	1.2	Certified	Robert Swartz	Sr. CE	15-FEB-24	14-MAR-24	14-MAR-24	Category 1 Spill	1192-0241 (24022 Mulholland Highway, Calabasas)	02/12/2024 08:27	02/12/2024 09:00	02/12/2024 08:15	02/15/2024 16:00	24-0985		CSMD Map Sheet No. 1192 MMS No. 8652199 Manhole 241 was overflowing.	34.13038	118.65219	Manhole	Manhole No. 241		2500	Upon arrival, we noticed manhole 241 was overflowing.  A portion of the sewage spill entered a drain northwest of manhole 240 on Mulholland Highway. 	Y	A portion of the sewage spill entered a drain northwest of manhole 240 on Mulholland Highway. 	0	350	A portion of the sewage spill entered a drain northwest of manhole 240 on Mulholland Highway, which leads to Unknown drain, Private drain, Bell Creek Cold Creek - Malibu Creek, Los Angeles River. 	350	2150	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Upon arrival, we noticed manhole 241 was overflowing.  A portion of the sewage spill entered a drain northwest of manhole 240 on Mulholland Highway, which leads to Unknown drain, Private drain, Bell Creek Cold Creek - Malibu Creek, Los Angeles River. 	N									02/12/2024 12:30	CWEA SSCSC Manhole Gauge. Visual or Eyeball Method. Time of notification.	The start time is obtained from the reporting party, the end time is when the crew clears the obstruction, and the overflow stops.	Debris-General; Natural Disaster (specify below)		Manhole		Other (specify below)	ABSCP	39	N/A	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow		Upon arrival, we noticed manhole 241 was overflowing.  A dirt berm was created diverting all wastewater to manhole 240.  We hydro-jetted from m/h 240 to 241 with no result, m/h 241 was vacuumed and found large rocks in the inlet of the channel and we were able to relieve stoppage. Afterward, the area was thoroughly cleaned.  All required agencies were promptly notified.	Other (specify below)	We will inspect manholes 242 to 241 via CCTV to determine if further action is needed.	We will inspect manholes 242 to 241 via CCTV to determine if further action is needed.	N/A	02/12/2024 14:00	We will inspect manholes 242 to 241 via CCTV to determine if further action is needed.	Y	We will inspect manholes 242 to 241 via CCTV to examine if earth movement may have disrupted the sewer mainline segment. 	04/12/2024 20:52	Bell Creek Cold Creek - Malibu Creek, Los Angeles River	Other (specify below); River	Creek	Bell Creek Cold Creek - Malibu Creek, Los Angeles River	No impacts.	Other (specify below)	No Impact.	N/A	0	N	N											We will inspect manholes 242 to 241 via CCTV to examine if earth movement may have disrupted the sewer mainline segment. 	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	893473	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	15-FEB-24	21-FEB-24	21-FEB-24	Category 1 Spill	1200 Lakeshore Avenue, Oakland Ca	02/14/2024 08:01	02/14/2024 09:00	02/15/2024 07:00	02/14/2024 09:15	24-0944		Two Manholes on the sidewalk area overflowing sewage and flowing to the gutter, from the gutter to the nearest storm drain.	37.79872	-122.25842	Manhole	Two Manholes on the sidewalk area.		684	Two Manholes on the sidewalk area overflowing sewage and flowing to the gutter, from the gutter to the nearest storm drain.	Y	12  drainage conveyance system called 14th Avenue creek and San Antonio that flows into Lake Merritt (Tidal waters).	0	479	Visual of Lake Merritt shows no evidence of impact damage.	479	205	Surface Water		Six Hundred and eighty-four gallons spilled from two manholes at 1200 Lakeshore. Four hundred and seventy-nine gallons spilled into a storm drain at that flows to Lake Merritt.	Y	37.79872	-122.25842							02/14/2024 10:20	Manhole # 1: 1 diameter Pick hole x .5  height = 1.25 GPM Manhole # 2: 1  diameter Pick hole x 1.5  height = 2.17 GPM 1.25= 2.17=3.42 GPM 200 minutes x 3.42 GPM = 684 Total gallons spilled. Recovered: 60 minutes x 3.42 = 205 Gallons. Total spill lost: 684 - 205 = 479 Gallons.	Start time based on eyewitness account.  End time was based on responding sewer crew restored the flow.	Debris-General; Fats, Oil and Grease (FOG)		Gravity Mainline		Other (specify below)	HDPE	30	Six Hundred and eighty-four gallons spilled from two manholes at 1200 Lakeshore. Four hundred and seventy-nine gallons spilled into a storm drain at that flows to Lake Merritt.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Sewer staff vacuumed a portion of the spill. Staff cleaned the affected area on the ground. Staff returned a portion of the spill to the sewer system.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		High level flow monitor will be installed. Sewer line was placed on three-month hydro high frequency.	High level flow monitor will be installed. Sewer line was placed on three-month hydro high frequency.	02/15/2024 15:37	CCTV found FOG and general to debris to be the protentional cause of the overflow.	N			Lake Merritt	Lake		Tidal Waters.	None.	Other (specify below)	None.	N/A	0	Y	N												
2	2SSO10105	Active	Central Contra Costa Sd CS	Central Contra Costa Sanitary District	893474	1.3	Certified	Paul Seitz	Division Manager		04-MAR-24	04-MAR-24	Monthly Category 3 Spill	456 Camino Sobrante	02/09/2024 09:08	02/09/2024 09:40	02/09/2024 07:45				Spill discharged from 69E1-M43.5	37.90058	-122.19011	Manhole			155	Spill discharged from 69E1-M43.5 and ran down the street to the intersection of Camino Sobrante and Miner Rd where it stopped off of the side of the road to an unpaved surface.	N						5	Paved Surface; Unpaved Surface		Spill discharged from 69E1-M43.5 and ran down the street to the intersection of Camino Sobrante and Miner Rd where it stopped off of the side of the road to an unpaved surface.	Y	37.90114	-122.19082							02/09/2024 10:00	The crew on the job used the eyball method and estimated the spill to be 155 gallons.	The crew estimated the spill to be equel to 2 55 gallon drums along with another 3 5 gallon buckets	Root Intrusion		Gravity Mainline		Vitrified Clay		73	The spill was contained to a paved surface and the final destination was an unpaved surface just off of the side of the road. No harful impact.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Spill was self contained at final spill destination as well as unpaved surfaces next to street. Spill dissapated at those locations. Approx 5 gallons of solid waste was picked up and returned to system.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Review CCTV in our bi-weekly Operations meeting and discuss increasing frequency of cleaning or if rehabilitation is needed. 		02/09/2024 13:39	Observed roots on mechanical cleaning tool when removed after clearing blockage.		Reviewed CCTV and maintenance records at 2/28/24 Operations meeting. We determined no rehabilitation is needed at this time. Due to the root intrusion on this line we greatly increased the cleaning frequency.	02/15/2024 04:45														N/A	Review CCTV in our bi-weekly Operations meeting and discuss increasing frequency of cleaning or if rehabilitation is needed. 	Cleaning schedule was adjusted to be cleaned more frequently.	Not in the near future. Our engineering department will evaluate the repair or replacement of this segmentduring review of the geographical area for District projects.	CCTV'd after spill to determine condition of pipe and contributing factors.	See 20.d.2.	See attached maintenace schedule.	After a review of our spill response, no modifications were required. 	Reviewed CCTV and maintenance records at 2/28/24 Operations meeting. We determined no rehabilitation is needed at this time. Due to the root intrusion on this line we greatly increased the cleaning frequency.	
8	8SSO10566	Active	Costa Mesa SD CS	Costa Mesa Sanitary District	893477	1.2	Certified	Mark Esquer	District Engineer	15-FEB-24	22-FEB-24	22-FEB-24	Category 1 Spill	MacArthur #135605 Sewer SSO	02/12/2024 14:57	02/12/2024 15:20	02/12/2024 14:45	02/12/2024 16:20	24-0898	22-FEB-24	A 50 gallon spill due to contractor work on the District public sewer cause seweage to spill from private property lateral onto the District easement, then to the City street, into a OC Public Works storm drain system. The address of the main spill is 1571 MacArthur Blvd, however, sewage also seeped from 1545 and 1561 MacArthur Blvd. The public sewer is located within an easement on private property. During the initial 45 minutes of the response, the initial spill estimate of 150 gallons was based on the previous December 2023 spill volume. The Distirct's consultant had the previous calculation available, used the new flow width in the gutter to calculate a more accurate flow of 0.9 gpm. The spill lasted 45 minutes and the resulting SSO volume is 41 gallons.  The District is currently using 50 gallons until the District Engineer has time to review the consultant calculations.	33.70192	-117.92225	Inside Building or Structure; Lateral Clean Out (Private)			41	Photos 82 and 84 show the primary and secondary spill points and the evidence of sewage flow across the pavement to the ribbon gutter. 	Y	County Storm Drain System D03. SSO entered the storm drain system via a catch basin on the southeast corner of MacArthur Blvd and Harbor Gateway North.	41	0	Photo 79 shows the catch basin (entry point). The vacuum tube is upstream of the basin.	0	41	Drainage Conveyance System that discharges to surface water		The Spill destination was a catch basin located on MacArthur Blvg on the south easterly corner of MacArthur Blvd and Harbor Gateway North. This catch basin is part of the County of Orange Storm Drain System D03. The catch basin GPS coordinates are 33.701843, -117.923838 anf the storm drain system flows southerly along the Santa Ana river for 3 to 4 miles to a County pump ststion that conveys the water to the SAR.	Y	33.701843	-117.92838	33.6636	-117.94662					02/12/2024 15:28	The spill volume was calculated by a civil engineer (District consultant) that took photos of the gutter flow width, measered longitudinal gutter slope, and calculated water depth, to calculate the flow rate of 0.9 GPM, for a total volume of 41 gallon over the 45 minute period that sewage entered the storm drain. All sewage was recovered by District field crews. The crew chased the storm drain flow until the pipe was dry. They inserted the vacuum tube and a second crew flushed the sewage to the downstream vacuum truck.   	The civil engineer used published flow equations, using the gutter slope, width of flow, water depth, gutter geometry. The flow start was reported by the affected property owners/tenants as the spill point was their floor drains and property cleanouts. The reported the spill immediately to the District inspector overseeing contractor work on the sewer pipe. The spill was relieved/stopped at 3:28 PM, as reported by District crews, see SSO Field Report form. 	Operator Error (specify below)	Contractor was removing calcium from the public sewer pipe as part of a large project. The manhole upstream of the contractor work was plugged so that the calcium removal equipment could operate properly. The adjacent aircraft parts manufacturer began emptying process tanks to the local public sewer and the system filled quickly until appearance at that business.	Other (specify below); Upper Lateral	The sewage left the system from the upper lateral cleanouts and the manufacturing businedd fllor drains. 	Vitrified Clay		62	Minimal impact as the SSO did not reach the river/open channel. Sewage was chased, recovered, and storm drain flushed/vacuumed.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	Two vacuum trucks were used to vacuum sewage from downstream of the spill travel and flushed from the entry-point catch basin by the upstream vacuum truck.	Once the District inspector reported the SSO to the District, field crews were dispatched to the site, containment set up, and the vacuum process started. The District inspector ordered the contractor to remove the pillow plug, which releaved/stopped the SSO.	Other (specify below)	The District is reviewing the location for a level monitoring device. Also, a debrief with the inspector and contractor discuss the cause and specific situation and contributing factors associated with the manufactring plant. The District will add a flag to the GIS system notifying crews and/or future contractors of the batch process. The inspector has been directed to coordinate work and Manufacturing process discharge with the business. 	Information associated with the upstream manufacturing business and related batch discarrge will be added to the GIS system related to the specific/impacted public sewer pipe.	GIS information will be added to the GIS by the District GIS consultant within 30 days.	02/12/2024 19:35	The District inspector was onsite observing the contractor activities that lead to the SSO. The Distirct required the contractor to CCTV the sewer to determine if another cause could have contributed to the SSO. no defects, clog, or other residual cause contributed to the SSO. 	N			OC County Storm Drain system Channel D03	River		Open, rectangular, concrete channel.	None. Sewage did not make it to open chanel nor River.	Other (specify below)	No Impact. Sewage captured.	OC Health Department	0	N	N												
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	892276	3.1	Amended	Kent Vian	Asst. Deputy Director	23-JAN-24	16-FEB-24	16-FEB-24	Category 1 Spill	NOT# 40201055600 337 W. 35TH ST. (SMO3)	01/22/2024 12:06	01/22/2024 12:45	01/22/2024 12:03	01/22/2024 12:41	24-0369	07-MAR-24	THE SPILL ORIGINATION HAD MULTIPLE SPILL APPEARANCE POINTS ALONG HARBOR DR.	32.65112	-117.10154	Inside Building or Structure; Manhole	N/A	SPILL APPEARANCE POINT FROM MANHOLES AND LATERALS. LATERALS                                    EQ# 700 W. HARBOR DR.                   10661724 1202 KETTNER BLVD.                  10885477 875 W. CEDAR ST.                       10883890 2734 LYTTON ST.                        10113494 4236 VENUS ST.                          10970758 601 PACIFIC HWY.                       10638242 780 W. G ST.                                10474394 820 W. G ST.                                10474390 925 WATERFRONT PL.                  NO EQ# 2838 KEATS ST.                            10071590 1205 PACIFIC HWY.                     10638294  MANHOLES 2710 N. HARBOR DR.                  10255357 337 W. 35TH ST. (SMO3)             10758386 W. HARBOR DR. & KETTNER BL. 10243219 680 W. HARBOR DR.                   10662200  A ST. & PACIFIC HWY                   10027964                          	2000000	THE SPILL STARTED AS FAR SOUTH AS 337 W. 35TH ST. TO AS FAR NORTH AS 2734 LYTTON ST.	Y	THE SEWER DRAINAGE CONVEYANCE SYSTEM HEADED SOUTHWEST AND SPILLED INTO SAN DIEGO BAY.	0	0	THE DISCHARGE POINTS INTO SAN DIEGO BAY WERE NORTH OF SEAPORT VILLAGE, SOUTH SEAPORT VILLAGE AND (SMO3) 337 W. 35TH ST.	1900000	100000	Building or Structure; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface	N/A	SPILL APPEARANCE POINTS WERE FROM AS FAR SOUTH AS 337 W. 35TH ST. (SMO3) TO AS FAR NORTH AS 2734 LYTTON ST.                        10113494.	Y	32.651	-117.10187	32.72712	-117.18189	32.71148	-117.16912	32.74293	-117.21003	01/22/2024 15:50	SPILL VOLUME ESTIMATIONS WERE CALCULATED USING A VISUAL CALCULATED METHOD AND ENGINEERING ESTIMATE BASED UPON FLOW MODELING AND FLOW METER DATA.	METHODOLOGIES WERE USED TO ASSUME SPILL START TIME IN FLOW METER DATA AND VISUAL OBSERVATIONS OF THE SPILL.	Flow Exceeded Capacity (Separate Collection System Only); Natural Disaster (specify below); Rainfall Exceeded Design, I and I (Separate Collection System Only); Vandalism (specify below)	THE VANDALISM WAS CAUSED BY CITIZENS AND OTHER WELL-DOERS WHO OPENED COLLECTION SYSTEM MANHOLES TO RELIEVE FLOODING OF STREETS AND HOMES. THE CITY AND COUNTY OF SAN DIEGO SUFFERED A HISTORIC RAIN EVENT OF A 1,000-YEAR STORM. THE EVENT DROPPED A HISTORIC 3� OF RAIN IN THREE HOURS, CAUSING SEVERE FLOODING AND INFLOWS TO THE WASTEWATER CONVEYANCE SYSTEM, OVERWHELMING THE SYSTEM AND CAUSING OVERFLOWS.	Lower Lateral; Manhole; Other (specify below)	SYSTEM-DESIGNED OVERFLOW STRUCTURES TO RELIEVE THE SYSTEM OF SURCHARGE WHEN INFLOW EXCEEDS SYSTEM DESIGN CAPACITY.	Concrete; Polyvinyl Chloride (PVC); Vitrified Clay	N/A	60	THE IMPACTS OF THE SPILL WERE TO SURFACE WATERS.  NO OTHER ADVERSE EFFECTS NOTED AT THIS TIME.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	SPILL RESPONSE ACTIVITIES WERE TO MONITOR THE SEWER RELEASE FROM THE OVERFLOW STRUCTURES, MANHOLES AND LATERALS UNTIL THE CATASTROPHIC RAIN EVENT ENDED AND THE SURCHARGED COLLECTION SYSTEM CAUGHT UP TO CONVEY FLOW. CLEAN-UP EFFORTS WERE CONDUCTED 1/23/2024 USING BYPASS PUMPING, VACCUM TRUCKS AND RESTORATION CONTRACTORS.	Other (specify below)	WAITED FOR THE CATASTROPHIC RAIN EVENT TO END AND FOR THE SURCHARGED COLLECTION SYSTEM TO CATCH UP.	TBD	TBD	01/22/2024 18:00	CATASTROPHIC RAIN EVENT	Y	TO VALIDATE DATA	05/06/2024 23:59	SAN DIEGO BAY, SWEETWATER RIVER, PACIFIC OCEAN.	Ocean; River	N/A	THE PACIFIC OCEAN IS ONE OF SEVEN OCEANS THAT COVER NEARLY THREE-FOURTHS OF THE SURFACE OF THE EARTH. THE SWEETWATER RIVER IS AN INTERMITTENT RIVER WITH AN ANNUAL MEAN FLOW OF 65 CFS, A MEAN VELOCITY OF 1.42 F/S AND FLOWS FROM THE CUYAMACA MOUNTAINS TO THE SAN DIEGO BAY. 	NO KNOWN IMPACTS TO AQUATIC LIFE.	Public Closure	N/A	DEPARTMENT OF ENVIORNMENTAL HEALTH SERVICES	6	N	Y	SEE ATTACHED	SEE ATTACHED									TO VALIDATE DATA	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	893483	1.1	Certified	David Leamer	Assistant Superintendent		27-FEB-24	27-FEB-24	Monthly Category 3 Spill	337819	01/18/2024 12:46	01/18/2024 13:07	01/18/2024 12:30				See Attachment, Spill Map and Photos	38.69157	-121.31196	Manhole	N/A		161	See Attachment, Spill Map and Photos	Y	See Attachment, Spill Map and Photos	130				160	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		See Attachment, Spill Map and Photos	Y	38.69121	-121.3124	38.69135	-121.31252					01/18/2024 14:15	See Attachment, Spill Volume Estimation.	See Attachment, Spill Volume Estimation.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		23	No observed impact of spill	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		SacSewer crews broke the stoppage in the mainline. SacSewer crews used a hydro-vacuum truck to rinse and vacuum above-ground surfaces in contact with sewage. SacSewer crews introduced de-chlorinated water through the storm drain inlet on the west side of the intersection of Campfire Way and Barnwood Ct to flush and clean the drainage conveyance system. SacSewer used a pump to return all recovered sewage and rinse water from the drainage conveyance system to the sewer system through a SacSewer manhole at the intersection of Campfire Way and Barnwood Ct (372-194-1022). SacSewer also removed the soil in contact with the spill at the contained puddle at the outfall pipe. Enrique did not retest after flushing since the crews recovered all sewage and rinse water.	Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected mainline with CCTV on 1/23/24. Based on findings, SacSewer has rescheduled another CCTV in one year to evaluate PM schedule. Evaluate condition of inside drop and possible repair of slight offset in drop. 		01/18/2024 15:36	SacSewer manhole 374-194-1040 spilled to a paved area, to the curb and gutter, to a storm drain inlet on the west side of the intersection of Campfire Way and Barnwood Ct, entering the storm drain system.   The spill was contained to a small area just outside the storm drain pipe outfall and did not advance any further.  The spill was contained to the drainage conveyance system.  Enrique informed Pre-Checker of results and went over cleaning activities.  SacSewer crews broke the stoppage in the mainline. SacSewer crews used a hydro-vacuum truck to rinse and vacuum above-ground surfaces in contact with sewage. SacSewer crews introduced de-chlorinated water through the storm drain inlet on the west side of the intersection of Campfire Way and Barnwood Ct to flush and clean the drainage conveyance system. SacSewer used a pump to return all recovered sewage and rinse water from the drainage conveyance system.SacSewer also removed the soil in contact with the spill at the contained puddle 		N/A	01/18/2024 15:36														N/A	SacSewer to perform another CCTV in 12 months of spill to evaluate PM schedule and adjust as needed. 	SacSewer will adjust PM schedule after CCTV follow up in 12 months.	N/A	SacSewer inspected mainline with CCTV on 1/23/24.	N/A	SacSewer to evaluate PM schedule after CCTV in 12 months	TVI shows mainline in fair condition and no other issues found after hydro 2773285 and 2772692. Hydro 2773285 shows heavy grease in the failure reporting. Created TV for Condition and PM Eval 2773532 a year from cleaning to evaluate for a cleaning PM frequency.  	N/A	
9	9SSO10649	Active	City of El Cajon CS	El Cajon City	893489	1.1	Certified	Aaron Jones	Operations Manager		07-MAR-24	07-MAR-24	Monthly Category 3 Spill	1428 Broadway	01/28/2024 22:40	01/28/2024 23:05	01/28/2024 22:30				The discharge took place at MH3012 located at 1428 Broadway Ave	36.77826	-119.41793	Manhole			250	The spill was contained to the street, curb and gutter and storm drain inlet located at 710 N 2nd St. 	Y	The spill stopped and was contained in storm drain inlet located at 898 710 N 2nd St	250				400	Drainage Conveyance System		The spill stopped and was contained in storm drain inlet located at 898 710 N 2nd St	Y	32.80423	-116.93602							01/28/2024 23:40	The eyeball method was used in determining the spill discharge and recovered volumes.  This method was used due to the short duration of the spill and because it was fully recovered.  Crews are trained on this method annually.	The City was informed of the spill through the My Civic app and responded to immediately.   	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		68	There was no impact due to response time for cleanup and full discharge recovery.	N	Returned All Spill to Sanitary Sewer System		2 combination jetter trucks were used, one for jetting and breaking the blockage in the pipe and the other collect the spill. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Sewer pipe segment has been added to a high frequency maintenance schedule.		01/28/2024 23:20	Cause of spill was determined to be grease.  This area has a large number of multifamily dwellings which have been known to be a contributing source of grease.		N/A	01/30/2024 08:30														N/A	N/A	Added to 3 month cleaning schedule and taken off of yearly. 	N/A	N/A	N/A	High Frequency Jetting at 3012-3013 and 3013-3011. 3 Month schedule for Jetting 	N/A	N/A	
8	8SSO18109	Active	East Orange Cnty Sanitation Dist CS	East Orange County Water District	893492	1.3	Certified	David Youngblood	General Manager	16-FEB-24	28-FEB-24	28-FEB-24	Category 1 Spill	19121 Barrett Lane	02/13/2024 07:50	02/13/2024 07:50	02/13/2024 07:45	02/13/2024 09:14	24-0910	27-FEB-24	District employee discovered spilling manhole while reading water meters in the area.  Spill location was in front of 19121 Barrett Lane, Santa Ana 92705. Manhole # SUN0430-1610.	33.7729	-117.79893	Manhole		No additional appearance points.	377	Spill exited manhole # SUN0430-1610 through four, 3/4  ventholes and one, 1  pick hole.  See attached photographs and spill estimation methodology.	Y	Spill ran along asphalt swale and then into a storm drain pipe which connected to the v-ditch across the street and then into another storm drain pipe. See attached.	50	327	The spill entered  directly into the storm drain at the intersection of Barrett Lane and Old Foothill.   EOCWD staff attempted to recover as much of the spill as possible at the intersection of Deep Well Rd. and Hewes Avenue by accessing a storm drain manhole and vacuuming 2200 gallons of water.   The sewage had mixed with existing  drainage system flow of approximately 50 gpm inside the storm drain at Barrett and Old Foothill location.	0	0	Drainage Conveyance System		The spill entered into the storm drain system at the intersection of Barrett Lane and Old Foothill.   From there the spill traveled west towards Hewes Avenue transitioning to F07P06.  The final destination was Newport Back Bay.	Y	33.77308	-117.79915	33.77158	-117.80535					02/13/2024 08:05	District employees were in the area at the time of the spill.   The employee who discovered the spill was meter reading at the time and had previously driven by the spill location before it started spilling.   He gave what seems to be a reasonable start time of 7:45am.     The spill continued for 20 minutes during which time measurements of the water height exiting the pick hole and vent holes were measured and containment set up.  Staff attempted to recover as much of the spill as possible however the sewage mixed with existing water in the storm drain making it difficult to determine an exact amount of spill recovered.  Staff did vacuum from the storm drain downstream 2,200 gallons of water.  	District employees were in the area at the time of the spill.   The employee who discovered the spill was meter reading close by at the time and had previously driven by the spill location before it started spilling.   He gave a start time of 7:45am and end time of 8:05am.  See attached spill report.	Debris from Construction		Manhole		Vitrified Clay		60	The spill exited a MH cover through the pick hole and vent holes and entered into a storm drain downstream.   The spill mixed with existing water in the storm drain.   EOCWD staff met with OCFC staff to inspect downstream storm channels at La Colina and Redhill to determine if additional cleanup was needed.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Once blockage was cleared, EOCWD staff moved the vacuum truck downstream to Deep Well Rd. and Hewes Ave removing 2200 gallons of water from the storm drain.   Cleanup was also performed along Barrett Lane where the spill occured.   Downstream drainage channels were inspected to determine if further cleanup was necessary.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Installed a Smart Cover at the MH that spilled.	District staff jetted the entire reach of sewer main along Barrett Lane from St. Thomas Drive to Old Foothill.    CCTV inspection of the pipe was also performed.  See attached reports.  A Smart Cover manhole lid was installed on February 22, 2024 and the line segments downstream and upstream of Manhole ID SUN0430-1610 were moved from annual to 6 month cleaning.	The corrective actions listed above have already been performed.	02/13/2024 15:48	The spill was caused by an obstruction inside the manhole at the downstream mouth of the pipe.   The material appeared to be a slab of mortar-like material  approximately 10 inches long by 6 inches wide and was shaped like the bottom of the pipe.    No root issues contributed to the blockage.   It was solely cause by this one piece of material.	N			Newport Back Bay	Estuary		Newport Back Bay estuary.	No known impacts.	Other (specify below)	No known impact to public access.	Not applicable	0	N	N												
5S	5SSO11433	Active	City of Stockton MUD CS	Stockton City MUD	893502	1.1	Certified	Dagmara Saini	Program Manager III		16-FEB-24	16-FEB-24	Monthly Category 3 Spill	208 W. Morada Lane	01/18/2024 08:15	01/18/2024 08:30	01/18/2024 08:15				The spill originated from the lateral of a single family home and was contained in the gutter in front of the home.  	38.03527	-121.31357	Lateral Clean Out (Public)			176	Spill filled the gutter in front of the address and stopped at the driveway of 202 w. Morada Ln. 	N						176	Street/Curb and Gutter (2 3)		The spill filled the gutter in front of 208 and 202 w. Morada Ln.  	Y	38.03527	-121.31334							01/18/2024 08:45	a spill volume calculator was used for the concrete area and the curb and gutter based on measurements taken.  	Based on customers initial call we determined the start time.  	Debris from Lateral		Lower Lateral		Cast Iron		30	no significant impact	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		Bad grade contained the spill in front of the homes.  Service truck operator cleared the lateral, stopping the spill and with the assistance of a hydro-vac crew they vacuumed and cleaned the spill from the curb and gutter.  	Inspected Sewer Using CCTV to Determine Cause		No actions were taken.  The cause was debris that had been flushed from the home.  		01/18/2024 09:00	CCTV of lateral after flow was restored and spill was cleaned up. 		none	01/18/2024 09:00														N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	none	
1	1SSO10058	Active	Rio Dell City CS	Rio Dell City	893249	2.1	Certified	Sunshine Kelly	Wastewater Superintendent	02-FEB-24	16-FEB-24	16-FEB-24	Category 1 Spill	End of Painter Street Manhole	01/31/2024 06:45	01/31/2024 08:00	01/31/2024 06:30	01/31/2024 14:15	24-0566	09-FEB-24	The spill was located at the Painter Street manhole at 556 Painter St. Photos attached show spill location. 	40.503117	-124.093756	Manhole			163600	The spill was located at the Painter Street manhole and flowed down the gravel ditch away from the residential area toward the Eel River, river bar. Photos show the sandbags, and ditch in place to direct the flow away from the residential area. 	N				The Photograph shows the location where the spill stream reached the Eel River.	163600	0	Surface Water		The Spill flowed to the river at Latitude/ Longitude: 40.503055, -124.091890.	Y	40.503055	-124.09189							02/01/2024 10:30	The volume estimation was based on flow monitoring at the site as well as supervisory control from SCADA based on the trend of the Painter Street lift station wet well level and pump control and the influent flow data into the plant.	The methodology of the spill start time was based on supervisory control based on SCADA of the data collected on the Painter Street Pump station trend, and the rain gauge at the Wastewater treatment plant. We were prepared for the event and had sandbags, a ditch to convey the spill away from residential properties and signs posted.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Other (specify below)	The failure is that the sanitary sewer main at this location was constructed with a 90 degree turn at this manhole and the earthquake in December of 2022 destroyed private laterals allowing more I&I to enter this portion of the sanitary sewer system. An upsizing project for this section of the sanitary sewer system is in the works since 2019 and will hopefully see some forward momentum with state funding this spring and summer, before the next wet season.	55	There was no impact to residence, or private property, or human life as spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage and the property owners were made aware of the issue at this site location.	Y	Cleaned Up (specify below)		Spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage was in place, property owners were notified and personnel frequently monitored at this site location. During and after spill the area was monitored to keep clean if there were any sewage debris. After the spill event, the ditch was cleaned, picked up of debris and sprayed with chlorine solution for disinfection.	Plan Rehabilitation or Replacement of Sewer		This site has a planned upsizing project in the planning phases for the past 6 years. Currently waiting on State funding to push the design process forward. Also looking to camera sewer mains and do a smoke test of the laterals in the area that lead to the Painter Street Pump Station.	Meeting with the State Water Control Board and Engineering company GHD on January 24th, 2024, provided some comfort that the State would approve the funding of this project, and the City of Rio Dell can start the design process.	02/01/2024 10:30	This SSO occurred due to the high levels of I&I. The area received 3.84 inches of rain in 24 hours on 1/31/24 and into 2/1/24 the area received an additional 0.58 inches of rain. The atmospheric river saturated the ground and the system causing the pump station to become overwhelmed which caused the SSO at this location, the Painter Street manhole.	N			Eel River	River		The Eel River is a large river that runs north on the east side of the City of Rio Dell.	No known impacts to aquatic life.  The river rose 13.07 feet from 1/31/24 to noon of 2/1/24. 	Public Closure		City of Rio Dell Wastewater Superintendent and the City of Rio Dell P.D.	2	N	Y	A sample was taken upstream in the river of the spill location; RSW-001U: Latitude/Longitude (40.496013, -124.093796). A sample was taken where the spill stream enters the Eel River; RSW-001: Latitude/Longitude (40.503055, -124.091890). A sample was taken downstream in the river of the spill location; RSW-001D: Latitude/Longitude (40.509118, -124.119597)	Per the City of Rio Dell SSO Water Quality Monitoring Plan Samples were analyzed for E.coli and Ammonia.										
9	9SSO10706	Active	Temecula Valley RCS	Eastern Municipal Water District	893503	1.1	Certified	Ken Tagney	Director of Water Reclamation		22-FEB-24	22-FEB-24	Monthly Category 3 Spill	French Valley, Washington St. & Abelia Street	02/15/2024 14:45	02/15/2024 15:30	02/15/2024 14:45				The spill appearance point was one manhole (MH42866). Pictures of the SSO are in the attachments. 	33.60547	-117.08643	Manhole			810	The spill flowed east in the curb gutter on Abelia Street until entering a storm drain inlet approximately 100 feet to the east of the origination point. It then flowed through the storm drain piping until it discharged into the stormwater retention basin on the south side of the intersection of Albelia Street and Charlois Street. The SSO then perked into the ground once entering the stormwater retention basin. 	Y	The spill flowed in the curb gutter before entering a storm drain inlet. The storm drain piping led to a stormwater retention basin on the south side of the intersection of Albelia Street and Charlois Street. 	0				0	Drainage Conveyance System; Groundwater Infiltration Basin or Facility; Street/Curb and Gutter (2 3)		The first set of coordinates are for the storm drain inlet where the SSO entered the stormwater system. The second set of coordinates are for the stormwater retention basin where the SSO perked into the ground. 	Y	33.60547	-117.08608	33.60554	-117.08754					02/15/2024 16:06	EMWD field crews have had extensive training on SSO visual flow estimation as well as having the aid of field guides to determine the flow rate of an SSO. Once flow rate is determined the the spill volume is derived by taking the time from SSO Start to End and multiplying it by the spill rate to get total volume of spill. 	EMWD relies on the individual or individuals who report the SSO for details about when the spill starts. Crews also make contact with property owners as well as involved parties when needed to help better determine when an SSO Started. Spill end time is when EMWD crews restore flow to the sewer system and SSO is stopped. 	Debris from Construction		Manhole		Polyvinyl Chloride (PVC)		17	The spill impacted a curb gutter, stormwater conveyances and stormwater retention basin. 	N	Cleaned Up (specify below); Restored Flow		EMWD crews cleaned the affected are with water and used a vactor truck collect the washdown water. They also cleared the sewer system blockage and inspected the pipe to insure there where no other blockages present. 	Inspected Sewer Using CCTV to Determine Cause		Removed construction debris from pipe. no further action was deemed necessary at this time. 		02/15/2024 18:00	Inspection of pipe determined that the cause of the SSO was construction debris as the blockage was caused by dirt, gravel and sand in the line. 		None. 	02/15/2024 18:00														None. 	None. 	No. 	No. 	N/A	None. 	N/A	None. 	None. 	
2	2SSO10125	Active	Cupertino SD CS	Cupertino Sanitary District	893504	1.4	Certified	Benjamin Porter	District Manager		29-FEB-24	29-FEB-24	Monthly Category 3 Spill	13740 Pierce Road	01/27/2024 10:55	01/27/2024 12:20	01/27/2024 10:00				Spill occurred at Manhole (MH# T-409), it was holding the sewage. 	37.26808	-122.04668	Manhole			419	The spill started from MH T-409, overflowing onto the dirt for 109 ft before reaching MH T-639. 2. It continued for another 187 ft on dirt. 3. Upon reaching the brick area, it flowed for 67 ft. 4. It then entered the Brick area (Round about), flowing for 41 ft before reaching PLCO, where it traveled another 45 ft to the dry area.	N						50	Paved Surface; Unpaved Surface		The spill started from MH T-409, overflowing onto the dirt for 109 ft before reaching MH T-639. 2. It continued for another 187 ft on dirt. 3. Upon reaching the brick area, it flowed for 67 ft. 4. It then entered the Brick area (Round about), flowing for 41 ft before reaching PLCO, where it traveled another 45 ft to the dry area.	Y	37	122	37	122.248	37.16	122.24			01/27/2024 02:30	The spill volume was determined using the Measure Area/Volume Method, with dimensions assessed through on-site observations of the wet strain/flow on the ground. A total of 250 gallons of water was utilized for washing down the brick, with 300 gallons subsequently vacuumed back into the truck, resulting in the recovery of 50 gallons of sewer. 	It is assumed that the dimensions were accurately recorded and observed, and that the calculations were performed accurately using Excel.	Debris-General; Debris-Rags; Root Intrusion		Manhole		Vitrified Clay		50	Part of the spill stayed on the dirt area, which is part of the home's private easement, and no other impact observed.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		All manholes were washed, and segment blockages were addressed. Bricks and driveways were hydro flushed, and all water, sewer, and wash down residue were vacuumed back into the pump truck.	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Spill was caused due to debris and  blockage caused by the root intrusion in the mainline. Cleaned the pipe and placed on a scheduled six month maintenance program. 		01/27/2024 14:30	The investigation into the cause of the spill involved a thorough examination of the affected area and relevant infrastructure. It was determined that the spill occurred due to a combination of factors, including blockage within the system, intrusion of roots from nearby vegetation, and the presence of debris obstructing the flow. These findings were established through detailed inspection and analysis of the site, allowing for a comprehensive understanding of the underlying causes of the spill.		The investigation was completed and revealed that the spill was caused by blockage with root intrusion, and the presence of debris.	02/21/2024 16:20														Not Applicable	A scheduled maintenance service is planned in six months' time to assess the condition of the roots and determine the necessary frequency maintenance schedule. 	A scheduled maintenance service is planned in six months' time to assess the condition of the roots and determine the necessary maintenance schedule.	No rehabilitation required. Overall structural pipe condition is good. 	CCTV inspection was carried out. 	Not needed.	The maintenance schedule, along with the corresponding work order, will be sent to the inspector via Lucity before six months.	Not needed. 	The investigation was completed and revealed that the spill was caused by blockage with root intrusion, and the presence of debris.	
2	2SSO10166	Active	Piedmont City CS	Piedmont City	893505	1.3	Ready to Certify						Monthly Category 3 Spill	301 El Cerrito Avenue Piedmont,CA 94611	01/22/2024 15:45	01/22/2024 15:53	01/22/2024 15:30				Spill contained within construction zone	37.82435	-122.23794	Manhole			720	Spill occurred in and was contained in the construction site	N						0	Unpaved Surface		construction work site										01/22/2024 15:54	San Diego Flow chart	Amount of spill and current flow from the broken manhole cone to determine start time. End time was blow down time.	Debris from Construction		Manhole		Other (specify below)	HDPE	15	Filled the construction zone with sewage	N	Contained All or Portion of Spill; Restored Flow		Used hand rod to restore flow at offending manhole. Construction zone was dug down below grade creating a natural earth bowl. Solid debris was removed from site.	Other (specify below)	Meeting with constuction company	Meeting with contractor, inspection during and after work is being done and completed.		01/22/2024 18:15	Construction debris in manhole		N/A	01/23/2024 08:30														N/A	N/A	N/A	N/A	Inspected	N/A	N/A	N/A	N/A	
2	2SSO10166	Active	Piedmont City CS	Piedmont City	893507	1.1	Ready to Certify						Monthly Category 3 Spill	301 El Cerrito Avenue Piedmont,CA 94611	01/22/2024 15:45	01/22/2024 15:53	01/22/2024 15:30				Bulb out construction zone 301 El Cerrito Piedmont Ca 94611	37.8263	-122.22994	Manhole			720	Bulb out construction zone	N						0	Unpaved Surface		Spill was contained to a dug up construction zone										01/22/2024 15:54	San Diego flow chart	Rate from flow chart and the fact that it was contained within the construction zone.	Debris from Construction		Manhole		Other (specify below)	HDPE	15	Filled construction zone with sewage	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow	Cleaned up solids	Restored flow within first minute of arrival using a hand rod. Spill was contained in in dug up construction zone.	Other (specify below)	Meeting with constuction company	More inspections within the construction zone		01/22/2024 18:15	Construction debris from bulb out project		Completed 1/23/24	01/23/2024 08:30														N/A	N/A	N/A	N/A	manhole cone was repaired	N/A	N/A	N/A	Completed 1/23/24	
4	4SSO11423	Active	Long Beach Water Dept. CS (SSO program)	Long Beach City, Water Dept	893510	1.1	Certified	Jennifer Rojas	Senior Director 		12-MAR-24	12-MAR-24	Monthly Category 3 Spill	3605 E. Anaheim Street Long Beach CA	02/07/2024 12:29	02/07/2024 12:29	02/07/2024 09:00				The spill originated at a Private 4  clean-out located in a parking garage.	33.78294	-118.14971	Lateral Clean Out (Private)			247	The spill began at a private 4  clean-out located in a parking garage and flowed down the garage floor into a private drain that leads to the street. It then moved down the street curb and gutter into a storm drain catch basin. Our on-call contractors, Ocean Blue Environmental, fully contained and recovered the spill at this location.	Y	The City of Long Beach's stormwater catch basin and conveyance system is a key component of the city's infrastructure. It is designed to collect and transport stormwater from city streets to prevent flooding. This catch basin is located at the curb of the road and acts as an entry point for stormwater into this system.	147				247	Building or Structure; Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		The spill impacted a parking garage as well as a catch basin managed by Long Beach Public Works. This basin is linked to a storm drain designed to gather runoff from Anaheim Street and channel it to other stormwater systems.	Y	33.78294	-118.14965							02/07/2024 13:07	The spill volume was determined based on the Plumber's onsite information. According to him, the spill began at 9:00 am, releasing about 1 gallon per minute, and continued for 247 minutes until the crew cleared the blockage at 1:07 pm. This totals to approximately 247 gallons, which were all recovered by Ocean Blue.	Our crew spoke with the plumber, who noted the time the spill began. The spill ceased once the blockage in the lower lateral was cleared, restoring the flow.	Root Intrusion		Lower Lateral		Concrete		99	The spill temporarily altered the routine use of the parking garage and presented a potential challenge to the city's stormwater systems. Prompt action was required to manage and clean up the spill, a task that was effectively handled by Ocean Blue Environmental. While such incidents can have environmental implications and potentially inconvenience the public, it's important to note that all the spilled material was successfully recovered in this case, mitigating the overall impact.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		The response team swiftly put containment measures into action by setting up barriers to halt the spill's spread. Ocean Blue immediately vacuumed and cleaned the garage, street gutter, and conveyance system.	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		The sewer lateral has undergone thorough hydro-jetting and has been added to our repair list in accordance with our city's policy on tree root interference in laterals. We will maintain this lateral until repairs are scheduled in the future.		02/07/2024 18:50	On 2/9/2024, a post-CCTV inspection was conducted to determine the cause of the sewer lateral stoppage. The inspection revealed that roots were the primary cause of the issue. Notes, video, and pictures were taken. The lateral was thoroughly hydro-jetted to clear the roots.		No ongoing investigation. 	02/09/2024 08:54														The Long Beach Health Department was informed and arrived on the scene to oversee the complete recovery and cleanup of the contaminated area.	The sewer lateral has been added to our repair list and will be maintained upon request from the property owner.	The sewer lateral will be maintained each time a request is made to Long Beach Utilities dispatch.	The identified defect in the sewer lateral will be addressed through planned replacement as part of our ongoing commitment to maintaining the integrity of our sanitary sewer assets.	CCTV inspections were carried out to identify the cause, location, and structural damage of the lateral pipe on the city�s lower lateral. 	The necessary repair and maintenance work will be carried out by in-house sewer operations.	The sewer lateral has been added to our repair list and will be maintained upon the property owner's request until the repairs are completed. This process is in accordance with our established protocol for lateral repairs on the city side, which serves as an immediate system modification. 	We will continue following our spill response procedures on containment and clean-up efforts.	No ongoing investigation. 	
2	2SSO10104	Active	Ccsf - San Francisco Airport CS	CCSF - San Francisco Airport	893512	1.1	Certified	Jennifer Acton	Director of Maintenance		28-FEB-24	28-FEB-24	Monthly Category 3 Spill	Gate C5	01/17/2024 09:15	01/17/2024 09:30	01/17/2024 09:05				Spill originated from a sanitary sewer manhole located on the airfield operations ramp closest to Gate C5.  	37.615364	-122.383075	Manhole			372	Sewage overflowed from the sanitary sewer manhole onto the airfield operations ramp paved surface and traveled down gradient, crossing the vehicle service road and into the aircraft taxilane.	N						372	Paved Surface		Sewage overflowed from the sanitary sewer manhole onto the airfield operations ramp paved surface closest to aircraft Gate C5 and traveled down gradient, crossing the vehicle service road and into the aircraft taxilane.	Y	37.61537	-122.38307	37.615766	-122.38255	37.615969	-122.382594	37.61537	-122.38307	01/17/2024 09:35	Spill volumes estimated using area/volume calculations with field measurement data collected on scene by responding Airport Spill Team member.	Spill start and end times estimated using information provided by Airport Operations and Airport staff responding to the incident. 	Debris-General; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Ductile Iron		39	Spill impacted the paved surface on the Airfield Operations ramp area at Gate G5.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	Paved surface was cleaned by Airport contractor using surface scrubbing equipment.	Airfield Operations, Airport Spill Team, Airport Plumbers, Airport Scrubbing contractor and Airline tenant all responded to the spill incident.  Absorbent material was used to control the spill and protect the storm drain conveyance system.  Airport Plumbers used the hydro jetter and vactor truck to clear the blockage and return flow to the sanitary sewer gravity mainline.  Airport contractor performed cleaning of the paved surface using scrubbing equipment.  All wastewater was returned to the Airport's sanitary sewer system for processing.	Adjusted Schedule/Method of Preventive Maintenance		Continue to perform regular FOG inspections of tenant facilities.  Adjust preventative maintenance method to include hydro jetting of gravity mainline.		01/17/2024 13:52	During hydro jetting activities by Airport Plumbers, general debris, non-dispersible wipes and grease deposition were observed while operating equipment.		Tenant FOG inspections to be performed.	01/17/2024 16:00														NA	NA	NA	NA	NA	NA	NA	NA	Tenant FOG inspections to be performed.	
4	4SSO11388	Active	County Sanitation District Joint Outfall CS	Los Angeles Cnty Sanitation Districts	893516	1.3	Certified	Andre Schmidt	Wastewater Collection Systems Manager	16-FEB-24	20-FEB-24	20-FEB-24	Category 1 Spill	Joint Outfall B � Unit 2A Manhole (MH) B 0218	02/12/2024 11:20	02/12/2024 11:20	02/04/2024 18:52	02/16/2024 15:04	24-1010	20-MAR-24	The spill originated from LACSD�s Joint Outfall B � Unit 2A MH B 0218 located at 34.0361948� N, -118.0684017� W, approximately 1,200 feet west of Rosemead Boulevard.  	34.0361948	-118.0684017	Manhole			65300	The spill area from LACSD MH B 0218 extended approximately 178 feet south of the manhole, and 30 feet north.  The maximum width of the spill travel route was 40 feet in the east and west direction. The spill traveled south entering Mission Creek which flows to the Rio Hondo. 	N				The spill from LACSD MH B 0218 flowed approximately 310 feet south of the downstream manhole into Mission Creek which flows to Rio Hondo.	65300	0	Surface Water		The spill area extended approximately 178 feet south of the manhole, and 30 feet north.  The maximum width of the spill travel route was 40 feet in the east and west direction. The spill traveled south entering Mission Creek which flows to Rio Hondo, Los Angeles River, and then to the Pacific Ocean.	Y	34.0361948	-118.0684017	34.0357058	-118.0684256	34.035419	-118.0683558	34.0310933	-118.0699673	02/05/2024 05:45	See Attachment	See Attachment	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Other (specify below)	Reinforced Concrete Pipe	8	See Attachment	Y	Cleaned Up (specify below)		See Attachment	Other (specify below)	See Attachment	See Attachment	See Attachment	02/13/2024 09:23	See Attachment	N			Los Angeles River, Pacific Ocean 	Ocean; River		Surface water channel	None	Public Closure	Long Beach Environmental Health closed four beaches located beach side on the Pacific Ocean on February 5, 2024	Long Beach Environmental Health 	10	N	Y	Rio Hondo upstream: 34.0527933, -118.0719171 Rio Hondo downstream at Whittier Narrows Reservoir: 34.0201108, -118.0829889 LA River at Del Amo Blvd:  33.84639, -118.20329 LA River at Willow: 33.80423, -118.20551 Long Beach at 5th Place: 33.76305, -118.18 Offshore West of Belmont Pier: 33.7512, -118.16863 Long Beach at Coronado Ave.: 33.75814, -118.155 Long Beach at Granada Ave.: 33.75428, -118.14 Offshore East of Belmont Pier: 33.74443, -118.14138 Long Beach at 72nd Place: 33.74435, -118.118 	Total Coliform, Fecal Coliform,  Enterococcus, E. Coli, Ammonia 										
1	1SSO10058	Active	Rio Dell City CS	Rio Dell City	893518	1.2	Certified	Sunshine Kelly	Wastewater Superintendent	19-FEB-24	19-FEB-24	19-FEB-24	Category 1 Spill	End of Painter Street Manhole	02/17/2024 15:30	02/17/2024 17:15	02/17/2024 22:30	02/17/2024 16:35	24-1023		The spill was located at the Painter Street manhole at 556 Painter St. Photos attached show spill location. 	40.503117	-124.093756	Manhole			49200	The spill was located at the Painter Street manhole and flowed down the gravel ditch away from the residential area toward the Eel River, river bar. Photos show the sandbags, and ditch in place to direct the flow away from the residential area. 	N				Pictures show the spill stream running toward the Eel River, and a picture of where the spill stream entered the rising Eel River.	49200	0	Surface Water		The Spill flowed to the Eel River at Latitude/ Longitude: 40.503055, -124.091890.	Y	40.503055	-124.09189							02/17/2024 22:30	The volume estimation was based on flow monitoring at the site as well as supervisory control from SCADA based on the trend of the Painter Street lift station wet well level and pump control and the influent flow data into the plant.	The methodology of the spill start time was based on supervisory control based on SCADA of the data collected on the Painter Street Pump station trend, and the rain gauge at the Wastewater treatment plant. We were prepared for the event and had sandbags, a ditch to convey the spill away from residential properties and signs posted.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Other (specify below)	The failure is that the sanitary sewer main at this location was constructed with a 90 degree turn at this manhole and the earthquake in December of 2022 destroyed private laterals allowing more I&I to enter this portion of the sanitary sewer system. An upsizing project for this section of the sanitary sewer system is in the works since 2019 and will hopefully see some forward momentum with state funding this spring and summer, before the next wet season.	55	There was no impact to residence, or private property, or human life as spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage and the property owners were made aware of the issue at this site location.	Y	Cleaned Up (specify below)		Spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage was in place, property owners were notified and personnel frequently monitored at this site location. During and after spill the area was monitored to keep clean if there were any sewage debris. There were no debris that were noted. 	Plan Rehabilitation or Replacement of Sewer		This site has a planned upsizing project in the planning phases for the past 6 years. Currently waiting on State funding to push the design process forward. Also looking to camera sewer mains and do a smoke test of the laterals in the area that lead to the Painter Street Pump Station.	Meeting with the State Water Control Board and Engineering company GHD on January 24th, 2024, provided some comfort that the State would approve the funding of this project, and the City of Rio Dell can start the design process.	02/18/2024 09:45	This SSO occurred due to the high levels of I&I. Several days of rain and saturation of the ground caused the pump station to become overwhelmed when large amount of rain occurred at once and caused the SSO at this location, the Painter Street manhole.	N			Eel River	River		The Eel River is a large river that runs north on the east side of the City of Rio Dell. There are no Surface Water users downstream of the SSO discharge location. 	No known impacts to aquatic life.	Restricted Public Access		City of Rio Dell Wastewater Superintendent 	2	N	N												
1	1SSO10058	Active	Rio Dell City CS	Rio Dell City	893519	1.2	Certified	Sunshine Kelly	Wastewater Superintendent	19-FEB-24	19-FEB-24	19-FEB-24	Category 1 Spill	End of Painter Street Manhole	02/18/2024 16:00	02/18/2024 16:45	02/18/2024 16:00	02/18/2024 17:50	24-1030		The spill was located at the Painter Street manhole at 556 Painter St. Photos attached show spill location. 	40.503117	-124.093756	Manhole			46740	The spill was located at the Painter Street manhole and flowed down the gravel ditch away from the residential area toward the Eel River, river bar. Photos show the sandbags, and ditch in place to direct the flow away from the residential area. 	N				Pictures show the spill stream running toward the Eel River, and a picture of where the spill stream entered the rising Eel River.	46740	0	Surface Water		The Spill flowed to the Eel River at Latitude/ Longitude: 40.503055, -124.091890.	Y	40.503055	-124.09189							02/19/2024 00:00	The volume estimation was based on flow monitoring at the site as well as supervisory control from SCADA based on the trend of the Painter Street lift station wet well level and pump control and the influent flow data into the plant.	The methodology of the spill start time was based on supervisory control based on SCADA of the data collected on the Painter Street Pump station trend, and the rain gauge at the Wastewater treatment plant. We were prepared for the event and had sandbags, a ditch to convey the spill away from residential properties and signs posted.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Other (specify below)	The failure is that the sanitary sewer main at this location was constructed with a 90 degree turn at this manhole and the earthquake in December of 2022 destroyed private laterals allowing more I&I to enter this portion of the sanitary sewer system. An upsizing project for this section of the sanitary sewer system is in the works since 2019 and will hopefully see some forward momentum with state funding this spring and summer, before the next wet season.	55	There was no impact to residence, or private property, or human life as spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage and the property owners were made aware of the issue at this site location.	Y	Cleaned Up (specify below); Mitigated Effects of Spill (specify below)		Spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage was in place, property owners were notified and personnel frequently monitored at this site location. During and after spill the area was monitored to keep clean if there were any sewage debris. There were no debris that were noted. 	Plan Rehabilitation or Replacement of Sewer		This site has a planned upsizing project in the planning phases for the past 6 years. Currently waiting on State funding to push the design process forward. Also looking to camera sewer mains and do a smoke test of the laterals in the area that lead to the Painter Street Pump Station.	Meeting with the State Water Control Board and Engineering company GHD on January 24th, 2024, provided some comfort that the State would approve the funding of this project, and the City of Rio Dell can start the design process.	02/19/2024 09:00	This SSO occurred due to the high levels of I&I. Several days of rain and saturation of the ground caused the pump station to become overwhelmed when large amount of rain occurred at once and caused the SSO at this location, the Painter Street manhole.	N			Eel River	River		The Eel River is a large river that runs north on the east side of the City of Rio Dell. There are no Surface Water users downstream of the SSO discharge location. 	No known impacts to aquatic life.	Restricted Public Access		City of Rio Dell Wastewater Superintendent 	2	N	N												
5S	5SSO11433	Active	City of Stockton MUD CS	Stockton City MUD	893520	1.1	Certified	Dagmara Saini	Program Manager III		22-FEB-24	22-FEB-24	Monthly Category 3 Spill	2247 Alma Av.	01/02/2024 15:07	01/02/2024 16:00	01/02/2024 15:02				The spill originated from a private cleanout and flowed across the sidewalk and into the curb and gutter.  	37.95415	-121.25801	Lateral Clean Out (Private)			61	The spill filled the gutter in front of 2247 Alma Av and stopped in the curb at 2267 Alma Av.  	N						61	Street/Curb and Gutter (2 3)		The spill was contained in the gutter in front of 2247 and 2267 Alma Av. 	N									01/02/2024 16:05	A spill volume calculator was used to calculate the spill in the gutter and sidewalk area 	Spill start date was established by the dispatchers relay of the original call and the end time was when the operator restored flow to the lateral. 	Fats, Oil and Grease (FOG)		Lower Lateral		Vitrified Clay		30	N/A	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		Bad grade kept the spill contained in the gutter until crews were able to vacuum and clean the area with a hydro-vac truck.  	Inspected Sewer Using CCTV to Determine Cause		communicated with residents the importance of the FOG program.  		01/18/2024 09:00	NA		NA	01/18/2024 09:00														N/A	N/A	N/A	N/A	NA	NA 	NA	NA	NA	
5S	5SSO11433	Active	City of Stockton MUD CS	Stockton City MUD	893521	1.2	Certified	Dagmara Saini	Program Manager III		18-APR-24	18-APR-24	Monthly Category 3 Spill	230 W Acacia St	12/26/2023 09:30	12/26/2023 09:45	12/26/2023 09:50				Photos show where spill overflowed from PO CO in driveway of  property that overflowed and spilled in to gutter	37.96157	-121.29708	Lateral Clean Out (Private)			64	Photo shows spill contained in the gutter area of property and contained in gutter area due to bad grade and debris in in the gutter	N						64	Street/Curb and Gutter (2 3)		230 W Acacia St- 37.96157-121.29708										12/26/2023 09:50	We used a spill volume calculator based on the measurements of the spill captured in the curb and gutter.	We used a spill volume calculator based on the measurements of the spill captured in the curb and gutter.  The spill start and end time are based on the time the spill was reported and the time we were able to stop the spill.  The reporting phone call was anonymous and there were no other witnesses	Root Intrusion		Lower Lateral		Vitrified Clay		50	The spill filled the gutter in front of the address with sewage until operators  were able to clean it.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Used Hydro truck to clean and vacuum the impacted area of the spill.	Inspected Sewer Using CCTV to Determine Cause		Used Hydro truck to clean and vacuum the impacted area of the spill.		12/26/2023 10:45	Spill caused by root intrusion no repair is recommended at this time		None	01/02/2024 11:17														None 	CCTV the lower lateral and implement any repairs or adjustments to a PM (if applicable) that are needed	CCTV the lower lateral and implement any repairs or adjustments to a PM (if applicable) that are needed.	None	CCTV the lower lateral and implement any repairs or adjustments to a PM (if applicable) that are needed	None	None	Used Hydro truck to clean and vacuum the impacted area of the spill.	None	
5S	5SSO11433	Active	City of Stockton MUD CS	Stockton City MUD	893522	1.1	Certified	Dagmara Saini	Program Manager III		22-FEB-24	22-FEB-24	Monthly Category 3 Spill	2730 N Hunter St	11/27/2023 11:37	11/27/2023 12:30	11/27/2023 11:10				Spill came out of a cleanout in the beginning of the alley next to 2730 n. Hunter	37.97694	-121.29636	Lateral Clean Out (Private)			91	Spill from cleanout flowed down the driveway from the alley and into the curb and gutter.  	N						91	Street/Curb and Gutter (2 3)		Spill was contained in the gutter in front of 2708 N Hunter and 2734 n Hunter st. 	N									11/27/2023 12:45	Spill volume calculator was used for the curb and gutter, asphalt area and soil area.  	Spill based off of volume on ground and information given from dispatcher.	Root Intrusion		Lower Lateral		Cast Iron		30	na	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		Service truck removed roots and with help of a hydro-vac truck crew they cleaned the spill. 	Inspected Sewer Using CCTV to Determine Cause		Cut roots from lateral and foamed to kill any future roots.  		11/27/2023 14:00	na		na	11/27/2023 14:00														na	na 	na 	na	CCTV'd to determine exact cause of plugged lateral.  	na	na	Service truck called for a hydro crew to assist with clean up and then began restoring flow .  	na	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	893524	1.2	Certified	John J Hough	San Dist M&O Superintendent	19-FEB-24	01-MAR-24	01-MAR-24	Category 1 Spill	339147	02/18/2024 16:25	02/18/2024 17:30	02/12/2024 17:43	02/18/2024 19:52	24-1032		See Attached Spill map with Photos.	38.5259	-121.4293	Lateral Clean Out (Public)			1246	See Attached Spill Map with Photos	Y	See Attached Spill map with Photos.	76	0	See Attached Spill map with Photos.	1164	80	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See attached Spill Map with Photos.	Y	38.5259	-121.4293	38.5261	-121.4294	38.514	-121.4269			02/18/2024 17:30	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Root Intrusion		Lower Lateral		Vitrified Clay		17	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified the City of Sacramento and Sacramento County Environmental Management Department.	See Attached Description of Spill Event.	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		SacSewer inspected the lower lateral with CCTV on February 18, 2024. Based on the findings, SacSewer will replace the lower lateral.	Target finish date for lower lateral replacement is February 28, 2025.	02/18/2024 20:45	See Attached Description of Spill Event.	N			Morrison Creek	Stream/Creek		Concrete lined channel with moderate flow.	No observed impacts to aquatic life.	Other (specify below)	No public access impact.	N/A	0	N	N												
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	893525	1.3	Certified	John J. Hough	San Dist. Superintendent	19-FEB-24	28-FEB-24	28-FEB-24	Category 1 Spill	338965	02/14/2024 17:50	02/14/2024 18:32	02/14/2024 14:30		-		See Attached Spill Map with Photos	38.62103	-121.24013	Lateral Clean Out (Public)			16	See Attached Spill Map with Photos	Y	See Attached Spill Map with Photos	1	0	See Attached Spill Map with Photos	9	5	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See attached Spill Map with Photos	Y	38.62103	-121.24013	38.62105	-121.23997	38.63187	-121.23701			02/14/2024 18:32	See Attached Spill Volume Estimation	See Attached Spill Volume Estimation	Debris from Lateral		Lower Lateral		Acrylonitr. Butadiene Styrene (ABS); Polyvinyl Chloride (PVC)		30	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified Sacramento County Department of Water Resources Drainage O&M.	See Attached Description of Spill Event	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		SacSewer inspected the lower lateral with CCTV on February 14, 2024. SacSewer replaced the lower lateral on February 27, 2024.	SacSewer replaced the lower lateral on February 27, 2024.	02/14/2024 22:00	See Attached Description of Spill Event	N			American River	River		The river is a large water body with heavy flow.	No observed impacts to aquatic life.	Other (specify below)	No public access impacts.	N/A	0	N	N												
3	3SSO10265	Active	El Estero CS	Santa Barbara City PWD	893528	1.2	Certified	Amanda Flesse	Wastewater System Manager		21-FEB-24	21-FEB-24	Monthly Category 3 Spill	1582 La Coronilla Dr. 	01/24/2024 08:15	01/24/2024 08:15	01/22/2024 03:53				January 24, 2024, at 8:15 am. The WWC Crew was assigned to clean the sewer main and noticed the above-ground broken pipe. WWC Lead noticed the broken pipe while walking the easement to access the downstream MH. 	34.40679	-119.71412	Gravity Mainline			520	The above-ground sewer main at 1582 La Coronilla Dr. easement was damaged on 1/22/24 by a windstorm per the Wastewater Collection Team investigation. The sewer main has minimal flow due to the number of properties connected to it. The spill was contained with a five-gallon bucket at the time of arrival; the spill before containment soaked into the backyard of 1582 La Coronilla Dr.	N						5	Other (specify below)	Backyard of 1582 La Coronilla Dr. Open space landscape. 	The above-ground sewer main at 1582 La Coronilla Dr. easement was damaged on 1/22/24 by a windstorm per the Wastewater Collection Team investigation. The spill was contained with a five-gallon bucket at the time of arrival; the spill before containment soaked into the backyard of 1582 La Coronilla Dr.	Y	34.40681	-119.71419							01/24/2024 08:17	See Attachment.  SSO Calculations	See Attachment. SSO Calculations.  	Other (specify below)	Rain and wind caused a tree branch to fall and damage above the ground sewer main.	Gravity Mainline		Polyvinyl Chloride (PVC)		64	The above-ground sewer main at 1582 La Coronilla Dr easement was damaged on 1/22/24 by a windstorm per the Wastewater Collection Team investigation. The sewer main has minimal flow due to the number of properties connected to it. The spill was contained with a five-gallon bucket at the time of arrival; the spill before containment soaked into the backyard of 1582 La Coronilla Dr.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Point repair.  The WWC Team removed all broken sections of pipe from the property. 	Point repair.  The WWC Team removed all broken sections of sewer pipe from the property.  The spill was contained with a five-gallon bucket at the time of arrival; the spill before containment soaked into the backyard of 1582 La Coronilla Dr.  No disinfectant was used due to private property. The homeowner was advised to keep away from the contaminated area. The area was posted with warning signs. 	Other (specify below)	Point repair	Point repair. The WWC Team is exploring options such as burying the sewer pipe, encasing the existing main, or removing surrounding trees.  		01/24/2024 13:40	N/A		No	01/24/2024 13:40														N/A	 N/A. Point repair	N/A	N/A	Point repair completed on 1/24/2024. 	N/A	N/A	Point repair. 	No	
1	1SSO10058	Active	Rio Dell City CS	Rio Dell City	893534	1.3	Certified	Sunshine Kelly	Wastewater Superintendent	20-FEB-24	20-FEB-24	20-FEB-24	Category 1 Spill	End of Painter Street Manhole	02/19/2024 10:30	02/19/2024 11:30	02/19/2024 10:30	02/19/2024 12:20	24-1037		The spill was located at the Painter Street manhole at 556 Painter St. Photos attached show spill location. 	40.503117	-124.093756	Manhole			49660	The spill was located at the Painter Street manhole and flowed down the gravel ditch away from the residential area toward the Eel River, river bar. Photos show the sandbags, and ditch in place to direct the flow away from the residential area. 	N				Pictures show the spill stream running toward the Eel River, and a picture of where the spill stream entered the rising Eel River.	49660	0	Surface Water		The Spill flowed to the Eel River at Latitude/ Longitude: 40.503055, -124.091890.	Y	40.503055	-124.09189							02/19/2024 20:00	The volume estimation was based on flow monitoring at the site as well as supervisory control from SCADA based on the trend of the Painter Street lift station wet well level and pump control and the influent flow data into the plant.	The methodology of the spill start time was based on supervisory control based on SCADA of the data collected on the Painter Street Pump station trend, and the rain gauge at the Wastewater treatment plant. We were prepared for the event and had sandbags, a ditch to convey the spill away from residential properties and signs posted.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Other (specify below)	The failure is that the sanitary sewer main at this location was constructed with a 90 degree turn at this manhole and the earthquake in December of 2022 destroyed private laterals allowing more I&I to enter this portion of the sanitary sewer system. An upsizing project for this section of the sanitary sewer system is in the works since 2019 and will hopefully see some forward momentum with state funding this spring and summer, before the next wet season.	55	There was no impact to residence, or private property, or human life as spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage and the property owners were made aware of the issue at this site location.	Y	Cleaned Up (specify below); Mitigated Effects of Spill (specify below)		Spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage was in place, property owners were notified and personnel frequently monitored at this site location. During and after spill the area was monitored to keep clean if there were any sewage debris. There were no debris that were noted. After the spill event the ditch was cleaned and sprayed with chlorine solution for disinfection.   	Plan Rehabilitation or Replacement of Sewer		This site has a planned upsizing project in the planning phases for the past 6 years. Currently waiting on State funding to push the design process forward. Also looking to camera sewer mains and do a smoke test of the laterals in the area that lead to the Painter Street Pump Station.	Meeting with the State Water Control Board and Engineering company GHD on January 24th, 2024, provided some comfort that the State would approve the funding of this project, and the City of Rio Dell can start the design process.	02/20/2024 09:00	This SSO occurred due to the high levels of I&I. The area received 4.44 inches of rain in 72 hours on 2/17/24 through 2/19/24. The atmospheric river saturated the ground and the system causing the pump station to become overwhelmed which caused the SSO at this location, the Painter Street manhole.	N			Eel River	River		The Eel River is a large river that runs north on the east side of the City of Rio Dell. There are no Surface Water users downstream of the SSO discharge location. 	No known impacts to aquatic life.	Restricted Public Access		City of Rio Dell Wastewater Superintendent 	2	N	N												
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	893538	1.2	Certified	John J. Hough	San Dist. Superintendent	20-FEB-24	04-MAR-24	04-MAR-24	Category 1 Spill	339163	02/19/2024 10:12	02/19/2024 10:25	02/18/2024 12:00		-		See Attached Spill map with Photos.	38.5075	-121.4827	Lateral Clean Out (Public)			658	See Attached Spill Map with Photos.	Y	See Attached Spill map with Photos.	0	0	See Attached Spill map with Photos.	630	27	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See attached Spill Map with Photos.	Y	38.5075	-121.4827	38.5078	-121.4828	38.511	-121.4833			02/19/2024 11:22	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Debris-General		Lower Lateral		Vitrified Clay		43	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified Sacramento County Department of Water Resources Drainage O&M.	See Attached Description of Spill Event.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected the lower lateral with CCTV on February 19, 2024. Based on the findings, SacSewer added the lower lateral to a 24-month cleaning frequency PM.	N/A	02/19/2024 12:30	See Attached Description of Spill Event	N			Unnamed tributary to the Sacramento River	Stream/Creek		Concrete lined channel with moderate flow.	No observed impacts to aquatic life.	Other (specify below)	No public access impact.	N/A	0	N	N												
4	4SSO10489	Active	Simi Valley CS	Simi Valley City	893540	1.2	Certified	Al Sexton	Deputy Director - Sanitation Services		07-MAR-24	07-MAR-24	Monthly Category 3 Spill	Arcane & Waltham 	02/11/2024 16:15	02/11/2024 16:45	02/11/2024 16:15				Spill Originated from Manhole (M/H K 9104) at Arcane and Waltham Street.	34.26086	-118.77573	Manhole			650	Spill reached storm drain approximately 30 feet South of M/H K 9104 at 1306 Arcane Street.	Y	Spill entered storm drain conveyance system at 1306 Arcane Street, appeared to include high groundwater and recent rainfall runoff flow, that carried and transported the spill to the Arroyo Simi.	150				150	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		Entered flood control channel at 1306 Arcane Street just Northwest of Waltham Street.	N									02/11/2024 17:15	Used Best Estimate Table C from Best Practices of Sanitary Sewer Overflows, (1/8 H = 1gpm).	Flow exiting approximately 1/8 inch height from manhole hole were 1/8 H = 1gpm.	Damage by Others Not Related to Collection System Construction/Maintenance; Vandalism (specify below)	Plastic Irrigation Cover was blocking and backing up flow.	Manhole		Polyvinyl Chloride (PVC)		45	None.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		On 2/11/24 City staff responded, setup safe traffic control, broke the blockage, restored flow, washed down the area and recovered an estimate 150 gallons of the spill. 	Inspected Sewer Using CCTV to Determine Cause		Continue routine annual line maintenance operations.		02/11/2024 17:15	On 2/11/24 the spill was reported to Mr. Benito at CAL-OES, Control #24-0880. City staff removed the blockage, restored flow and cleaned the area.  Warning signs were posted along the Arroyo Simi and initial water samples were collected.  Three days of water quality monitoring was initialed and conducted upstream, midstream and at downstream locations form the spill entry point. Then on 2/12/24 during follow-up inspection and videoing of the line, City camera crew staff discovered and recovered a broken irrigation box cover. 		None.	02/12/2024 16:15														None.	None.	None needed.	None planned.	Not needed.	None.	None.	None.	None.	
3	3SSO10291	Active	Montecito SD CS	Montecito Sanitary District	893541	1.4	Amended	Ricardo Larroude	Collections & Maintenance Superintendent 	20-FEB-24	01-MAR-24	01-MAR-24	Category 1 Spill	1516 Sinaloa Drive	02/19/2024 13:06	02/19/2024 13:22	02/19/2024 10:15	02/19/2024 15:30	24-1041		From District gravity sewer mainline manhole (O7M64) located on private driveway in front of 1516 Sinaloa Dr..	34.42969	-119.63089	Manhole			3200	From District gravity sewer mainline manhole, down private driveway onto Sinaloa Dr., traveling along curb into storm drain that discharges in to Oak Creek and flows into the Pacific Ocean.	Y	Storm drain located along the northern side of Sinaloa Drive	0	0	Discharge point from storm drain culvert into Oak Creek.	3200	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		Spill Appearance point was from District 8  gravity sewer mainline manhole, down private driveway onto Sinaloa Dr., along curb into storm drain that discharges into to Oak Creek which eventually discharges into Pacific Ocean (Miramar Beach).	Y	34.42969	-119.63089	34.4288	-119.63042	34.42878	-119.62994	34.41946	-119.62681	02/19/2024 11:35	Witness provided a photo of the spill and start/end time frame to staff. With this information the calculations were based off the Duration & Flow Rate Comparison Method. 	Witness provided spill start and end time. (Spill had ended prior to staff's arrival).	Flow Exceeded Capacity (Separate Collection System Only); Rainfall Exceeded Design, I and I (Separate Collection System Only)		Gravity Mainline		Vitrified Clay		51	Spill was caused by hydraulic overload due by heavy storm event which lead to SSO from District gravity manhole. Spill reached storm drain that discharges into Oak Creek. Oak Creek discharges into Pacific Ocean (Miramar beach).	Y	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified	Flow was already restored prior to arrival.	When staff arrived at location of spill, flow had already been restored. With the information of the spill appearance point, path, and destination provided by witness, staff was able to wash down and vacuum affected area of spill with combo unit. (Take into consideration that rain was still present during the response procedure and Oak Creek was flowing heavily).	Other (specify below)	Due to hydraulic overload caused by rain event, District staff will continue to inspect sewer system for I & I and address issues as found.	District staff will continue to inspect sewer system for I & I and address issues as found.	 Ongoing process.	02/19/2024 14:45	Investigation determined that due to heavy rain event, I & I entered the system which caused the system to surcharge and spill out of manhole (O7M64)	N			 Oak Creek & Pacific Ocean (Miramar Beach)	Ocean; Stream/Creek		Flowing creek (Oak Creek) that discharges into the Pacific Ocean (Miramar Beach).	None	Public Closure		Santa Barbara County Environmental Health Services	10	N	N												
3	3SSO11465	Active	Goleta West SD CS	Goleta West SD	893543	1.6	Amended	Brian McCarthy	General Manager	23-FEB-24	01-MAR-24	01-MAR-24	Category 1 Spill	Airport Force Main 24	02/17/2024 08:24	02/17/2024 09:15	02/16/2024 19:22	02/17/2024 18:00	24-0124	02-APR-24	30 feet south of the south west corner of runway 33L at the Santa Barbara Municipal Airport.	34.4193	-119.83825	Force Main			1089000	Spill was originating out of the ground, 30 feet south of the southwestern corner of Runway 33L at the Santa Barbara Municipal Airport. Flow headed west and into the tributary spread across 145 linear feet of the embankment. Flow spread around the spill origin covering roughly 50 foot diameter circle area. Spill also headed south along the eastern edge of the service road in a 10 foot wide stream, then east along the northern edge of the service road where it pooled on the north side of the service road and created a triangular shaped wetted area. Flow also crossed over service road to the south and pooled in a drainage area. See attached spill map. 	Y	Tributary to west of spill origin that flows south roughly 400' and connects to Tecolotito Creek, which eventually leads to Pacific Ocean.	0	1022500	To the west of spill origin across 143' of embankment into tributary of Tecolotito Creek.	1022500	17000	Drainage Conveyance System that discharges to surface water		Spill was originating out of the ground, 30 feet south of the southwestern corner of Runway 33L at the Santa Barbara Municipal Airport. Flow headed west and into the tributary spread across 145 linear feet of the embankment. Flow spread around the spill origin covering roughly 50 foot diameter circle area. Spill also headed south along the eastern edge of the service road in a 10 foot wide stream, then east along the northern edge of the service road where it pooled on the north side of the service road and created a triangular shaped wetted area. Flow also crossed over service road to the south and pooled in a drainage area. See attached spill map. The spill origin is 30 feet from tributary of Tecolotito Creek, 1,000 linear feet from main body of Tecolotito Creek. Roughly 6,000 linear feet from location of spill entering the tributary to Goleta Slough inlet at Pacific Ocean if travelling along the waterway. Tributary had existing flowing water in it at time of spill. 	Y	34.41915	-119.83844	34.41915	-119.83848	34.41849	-119.8378	34.41902	-119.83724	02/17/2024 09:00	Assumed duration based on the earliest possible start time. Assumed total volume based on comparative average flow data. Assumed constant discharge throughout duration. For spill volume estimation, used flow telemetry at the regional treatment plant (operated by Goleta Sanitary District) to determine when leak occurred based on drop in flow received. Calculated total volume received at treatment plant during this time period and compared to historical average flow during the same time period. Estimated volume that did not enter the tributary by measuring wetted areas around spill origin and calculated volume based on average depths of wetted areas. Recovered amount calculated by known capacity of equipment used to remove wastewater and debris.	Assumed spill start time based on analyzing flow telemetry and noting when flow received at regional treatment plant dropped off from normal. Spill stop time determined by field observation of when water stopped coming out of ground after all valves were closed and pipe was isolated.	Other (specify below)	See attachment for #4.a.	Force Main		Ductile Iron		46	Current estimates are approximately 1,089,000 gallons of raw wastewater spilled from site. Roughly 66,500 gallons were contained within non-native dominated grassy area, of which 17,000 gallons were recovered and disposed of at the treatment plant. 1,022,500 gallons are believed to have entered a tributary to Tecolotito Creek which eventually drains to the Pacific Ocean. Approximately a day and a half into response activities, spill area received approximately 3 inches of rain. Site monitoring is ongoing.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Other Enforcement Agency Notified; Property Owner Notified; Returned Portion of Spill to Sanitary Sewer System	See attachment for response to #9.	See attachment for response to #9.	Repaired Facilities or Replaced Defect		See attachment to #10.	See attachment to #10.	03/01/2024 17:06	Uncovered pipe and found exterior coating of ductile iron had been compromised. Actual cause of exterior coating damage unknown at this time, but visual corrosion of ductile iron material evident. Procedure to reintroduce service to 24  forcemain on Friday February 16 was followed. Hole was roughly 6� in diameter with a 5� crack running from the hole along the side of the pipe. Expected life expectancy of pipe is 60 to 100 years and pipe age is 46 years.  Pipe section retained for investigation.  During excavation and replacement of portion of failed pipe, remaining pipe visually inspected with no issues seen.  Flow data also under analysis.	Y	GWSD will continue further investigation of incident alongside the broader assessment of forcemains for future rehabilitation or replacement with contracted engineering firm that has already begun to ensure incident does not occur again.	03/29/2024 18:30	Tributary to Tecolotito Creek, Mouth of Goleta Slough, Pacific Ocean	Ocean; Other (specify below)	Tributary located at south edge of estuary/slough	Tributary along south side of Goleta Slough which is designated as a state marine preserve and closed to fishing or collecting as marine protected area. Tributary joins Tecolotito Creek upstream of confluence with other creeks at Goleta Slough mouth to Pacific Ocean.  Multiple uses for water bodies defined in Basin Plan.	Staff has been monitoring tributary, Tecolotito Creek, and Goleta Slough multiple times on day of spill and subsequent weeks after, including 2/17, 2/18, 2/20 through 2/23, and 2/27 through 3/1. This was done during water sampling activities as well as other site visits specifically to observe the waterway and aquatic life. No apparent impacts on aquatic life observed.  Monitoring ongoing, and in communication with California Public Health Department.	Other (specify below); Public Closure	GWSD is aware of a Beach Advisory being issued by the local public health department on 2/16, before the date of the spill, because of the anticipated water quality impacts as a result of the forecasted storm event on 2/18 and 2/19. GWSD monitored whether the Goleta Beach area was closed and followed up to confirm. GWSD reached out to the local public health department on Wednesday, 2/21 and understands the beach was then closed on that day. GWSD was told by County staff on 2/25 that the beach was closed due to unrelated dredging and beach replenishment activities in the Goleta Slough by Santa Barbara County Flood Control District that started on 2/20.  Beach remains closed and signs posted for health advisory.	Santa Barbara County Public Health Department and Environmental Health Services	10	N	Y	Water samples were taken from 4 separate locations within the receiving tributary and downstream in Tecolotito Creek on 2/17 in the afternoon. Upstream from the discharge point, at the discharge point, and two downstream of the discharge point where water is fully mixed with receiving water. Additional samples were taken upstream of the contact point and below for reference. Samples were taken at sample sites 1 through 4 between 3:30PM and 4:00PM on 2/17/24. Sample site 4 was replaced by sample site 5 & 6 during the next sampling period on 2/22/24. Sample sites 1, 2, 3, 5 & 6 were sampled again on 2/27 and 2/29/24. Refer to sample location map for specific locations.  GWSD understands samples are also being collected by other local agencies including local health department.	All samples were analyzed for total and fecal coliform and ammonia.  GWSD is consulting with other agencies, plans including Ocean Plan, and continuing to sample post-spill conditions until further guidance.									GWSD will continue further investigation of incident alongside the broader assessment of forcemains for future rehabilitation or replacement with contracted engineering firm that has already begun to ensure incident does not occur again.	
5S	5SSO11055	Active	Southeast Regional Waste Disp Fac CS	Lake Cnty	893545	1.3	Certified	George Hornung	Deputy Administrator	20-FEB-24	22-FEB-24	22-FEB-24	Category 1 Spill	6855 Meadowbrook Dr	02/18/2024 17:32	02/18/2024 17:30	02/18/2024 17:32	02/18/2024 18:44	24-1031		From a manhole in front of 6855 Meadowbrook Dr, Clearlake, CA 95422.	38.93354	-122.63018	Manhole			1450	Spill was from a manhole and spilled onto the paved roadway surface and concrete gutter and was transported to a drainage then to an unnamed seasonal stream and then to Cache Creek.	N				Concrete apron that leads to the drainage ditch	1450	0	Paved Surface; Street/Curb and Gutter (2 3); Surface Water		The spill was from a manhole in front of 6855 Meadowbrook Dr, Clearlake, CA 95422.  It spilled on the paved roadway surface and concrete gutter and was transported to a drainage then to an unnamed seasonal stream and then to Cache Creek.	N									02/18/2024 18:30	Field staff were stationed at this location looking for any sso while pumper trucks were working Bay St to relieve the surcharge in the collection system.  Staff were present when it started and stayed at the spill location timing the spill and determining the flow rate.	Staff were stationed at the spill site when the spill started and stopped.	Flow Exceeded Capacity (Separate Collection System Only); Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Polyvinyl Chloride (PVC)		47	The spill was from a manhole and spilled on the paved roadway surface and concrete gutter.  The spill was transported to a drainage, then to an unnamed seasonal stream and then to Cache Creek.	Y	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow		The District had pumper trucks staging at this section of the collection system and started hauling loads from the collection system when it began to surcharge.  Pumper trucks hauled approximately 840,000 gallons of sewage from the collection system to the Southeast treatment plant that was prevented from spilling.	Plan Rehabilitation or Replacement of Sewer		The District has engineered plans for a pump station north of Bay St in this section of the collection system that will relieve the surcharging of the collection system.  The District is looking to implement this ASAP.	N/A	02/20/2024 12:00	The collection system surcharged from the storm event (atmospheric river) which caused the spill from the manhole.	N			unnamed seasonal stream and Cache Creek	Stream/Creek		The spill entered a drainage with leads to an unnamed seasonal stream that leads to Cache Creek.	None observed	Other (specify below)	Environmental health will be taking water samples for total coliform and e. Coli.  When results are back they will make the determination to issue a warning, restricted access / use, etc.	Environmental Health and Public Health	10	N	Y	There are two upsteam, two downsteam, one at the entry point to the drainage, one 3200 feet west of the spill location at the confluence of Clear Lake and Cache Creek.	Total coliform and E. Coli 										
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	893546	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	20-FEB-24	21-FEB-24	21-FEB-24	Category 1 Spill	6336 Buena Ventura Avenue, Oakland Ca	02/16/2024 13:52	02/16/2024 18:25	02/16/2024 10:00		-		Lamp-Hole on the left side of the property on an Easement, in empty lot on a hillside.	37.77694	-122.17578	Other (specify below)	Lamp-Hole on the left side of the property on an Easement, in empty lot on a hillside.		697	Lamp-Hole on the left side of the property on an Easement, in empty lot on a hillside, flowing into unpaved surface, to sidewalk area, gutter, and separate storm drain.	Y	Storm drain flowing to Arroyo Viejo, Lion creek, and Damon Slough.	0	400	Storm drain flowing to Arroyo Viejo, Lion creek, and Damon Slough.	400	0	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Unpaved Surface		Six hundred- and ninety-seven-gallons gallons overflowed from sewer mainline.  Four hundred gallons was lost down a storm drain that flows to Arroyo Viejo Creek, Lion Creek, Damon Slough. Two hundred and ninety-seven gallons spilled onto the unpaved surface was lost in soil.	Y	37.77694	-122.17578							02/17/2024 09:14	1380 minutes x .5 GPM = 697 Gallons Total Spill. Unpaved Surface: 45' L x 4' W x 1' D x 7.48 x .1875 = 252 Gallons. 32' L x 2' W x .5' D x 7.48 x .1875 = 45 Gallons Total lost on unpaved surface: 252 + 45 = 297 Gallons. Total lost in the storm drain: 697 - 297 = 400 Gallons	Start time was based on eyewitness account. End time was based on when staff clearing blockage and restoring flow in the main line.	Pipe Structural Problem/Failure - Installation		Other (specify below)	Lamp hole standpipe on a hillside shifted because of land slide.	Vitrified Clay		90	Six hundred- and ninety-seven-gallons gallons overflowed from sewer mainline.  Four hundred gallons was lost down a storm drain that flows to Arroyo Viejo Creek, Lion Creek, Damon Slough. Two hundred and ninety-seven gallons spilled onto the unpaved surface was lost in soil.	Y	Cleaned Up (specify below); Restored Flow	Removed contaminated soils on hillside.	Removed contaminated soils on hillside.	Plan Rehabilitation or Replacement of Sewer		Construction work order #1504012 was created to repair the lamp hole.	Construction work order #1504012 was created to repair the lamp hole.	02/17/2024 15:30	Lamp hole standpipe on a hillside shifted because of land slide allowing soil and debris to flow into the main line causing the blockage.	N			Lion creek, Arroyo Viejo creek, and Damon Slough	Stream/Creek		Lion creek, Arroyo Viejo creek, and Damon Slough	None.	Other (specify below)	None.	N/A	0	Y	N												
3	3SSO10334	Active	Seaside Co Sd CS	Seaside CSD	893554	1.6	Certified	Nisha Patel	District Engineer	20-FEB-24	29-FEB-24	29-FEB-24	Category 2 Spill	2070 Yosemite	02/19/2024 08:36	02/19/2024 09:16	02/19/2024 08:15	02/20/2024 11:30	24-1060		Spill originated from a single point, SS Manhole D7-22. Spill flowed down Yosemite Street to Military Avenue, where it entered a storm drain, and then spilled to land. This section of storm drain does not connect to a water body or conveyance. It daylights into an unpaved, vegetated drainage channel.	36.6209	-121.827186	Gravity Mainline; Manhole			2300	Spill was contained to land. The conveyance system which was involved in the spill discharges to land.	Y	The conveyance system discharges to land, and does not connect to a water body, or other conveyance which connects to a water body. 	675	0			675	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		Spill flowed down Yosemite Street to Military Avenue, where it entered a storm drain, and then spilled to land. This section of storm drain does not connect to a water body or conveyance. It daylights into an unpaved, vegetated drainage channel.	Y	36.6209	-121.827186	36.621814	-121.828472					02/19/2024 09:47	Time x Flow rate calculation for total spill volume. Captured spill volume was measured by the Vactor Truck	Spill time of 92 minutes x 25 gpm = 2300 Gallons	Debris-Rags; Root Intrusion		Gravity Mainline		Vitrified Clay		70	Street, gutter, storm drain, and unpaved vegetated land impacted. Street and Gutter disinfected. Portion of spill captured from storm drain. Storm drain disinfected. Solids raked and collected in unpaved area. Area disinfected.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Flow restored to sewer. Street and Gutter disinfected. Portion of spill captured from storm drain. Storm drain disinfected. Solids raked and collected in unpaved area. Area disinfected.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Location added to root abatement list	Annual Root Intrusion Abatement	02/19/2024 10:50	Line was CCTVd. Line is in good condition. Root intrusion caused build up of rags to stop flow. Roots have been trimmed. The location has been added to the root abatement list.	N												N													
8	8SSO10543	Active	Beaumont City CS	Beaumont City	893558	1.2	Certified	Jerome Moledor	Wastewater Collections Supervisor	21-FEB-24	27-FEB-24	27-FEB-24	Category 2 Spill	Tukwet Canyon pkwy and Zachary way	02/17/2024 09:19	02/17/2024 09:55	02/17/2024 05:00	02/17/2024 14:02	24-1022		Spill came out of a single manhole near the intersection of Tukwet Canyon pkwy and Zachary way.	33.94829	-117.04033	Manhole			12600	Spill came out of a manhole near the intersection of Tukwet Canyon pkwy and Zachary way. It traveled West approximately 153' where 3/4s of it went into a storm drain catch. The remaining 1/4 then traveled South approximately 724' to a second storm drain catch. Both of these drains daylight into a stormwater retention basin with the water level not at outfall height.	Y	Spill came out of a manhole near the intersection of Tukwet Canyon pkwy and Zachary way. It traveled West approximately 153' where 3/4s of it went into a storm drain catch. The remaining 1/4 then traveled South approximately 724' to a second storm drain catch. Both of these drains daylight into a stormwater retention basin with the water level not at outfall height.	12600	0			12600	Drainage Conveyance System		The spill headed West approx. 153' down Zachary Way to a storm drain intel(1.d.). At this intel about 3/4 of the flow was going in. The remaining 1/4 crossed the street and headed approx. 724' South down Tukwet Canyon prky to a second storm drain intel(1.f.). Both of these storm drains daylight to the same storm water retention basin(1.h.). This basins water level was not at its outfall level.	Y	33.94835	-117.04036	33.9471	-117.04236	33.94693	-117.04206			02/17/2024 11:06	Spill was estimated by referring to manhole overflow gauge overflow simulation pics, then multiplied by estimated spill time. Estimated full recovery by cleaning the strom drain catch basin tell it was dry.	Assumptions on start time were made by the reporting call time and approx gpm. Time was added to put start time 4hrs before call.	Debris from Construction	String line and lateral plugs in main line due to contractor. Area is not under City ownership yet. It is still in its construction phase.	Gravity Mainline		Polyvinyl Chloride (PVC)		1	Impact of spill was limited to street, gutter, and non outflowing storm catch basin.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Made earth damns to keep all flow going into the closer storm drain intel. Put up traffic control and spill signs. Cleaned line and manhole to relieve blockage. Disinfected and washed down spill aeras. Collected and vacuumed up spill at storm catch basin. Returned spill to collection system.	Other (specify below)	Put Woodside Homes on notice and are making them clean and CCTV all lines in their community. 	The Citys building and code enforcement departments have been brought into this community to ensure the problems are addressed. And the system is cleaned and videoed.  	Working with Woodside Homes(Johnny Peterson) for a timeline.	02/17/2024 18:30	When blockage was cleared it was found to be multiple string lines and lateral pipe test plugs that had gathered together and collected rags-wipes causing a blockage.	Y	To make sure work that is asked of Woodside Homes is actually done.  	03/31/2024 14:26										N												To make sure work that is asked of Woodside Homes is actually done.  	
3	3SSO10291	Active	Montecito SD CS	Montecito Sanitary District	893560	1.3	Certified	Ricardo Larroude	Collections & Maintenance Superintendent 		22-FEB-24	22-FEB-24	Monthly Category 3 Spill	350 San Ysidro Rd	02/19/2024 09:42	02/19/2024 10:04	02/19/2024 09:37				Spill location was coming from 4  private lateral cleanout located in rear of residence.	34.43112	-119.63153	Lower Lateral (Private)			672	Spill location was coming from 4  private lateral cleanout located in rear of residence and affected patio area as well as dirt area on the property.	N						0	Unpaved Surface		Residence rear patio and dirt area were affected by spill. 										02/19/2024 10:33	Staff simulated spill volume based on the pictures taken during the spill event.	Confirmed start time with homeowner and staff was present when spill ended.	Flow Exceeded Capacity (Separate Collection System Only); Rainfall Exceeded Design, I and I (Separate Collection System Only)		Gravity Mainline		Other (specify below); Vitrified Clay	VCP/CIPP Lined Pipe (Hydraulic overload to collection system caused by rain event)	61	Spill impact from 4  private lateral cleanout located in rear of residence affected patio area as well as dirt area on the property	Y	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow	Contacted restoration company for clean up	Staff inspected surrounding manholes and contacted restoration company for clean up.	Other (specify below)	Due to upstream manhole elevation, District will require residence to install backflow device on private lateral.	District will continue inspecting collection system for I & I and address findings on future CIP projects.		02/19/2024 15:05	Spill was caused by hydraulic overload due to storm event		None	02/21/2024 10:17														N/A	Identify I & I and address related issues	Current maintenance schedule is adequate 	Sewer system related to spill point was rehabilitated in 2011	N/A	N/A	N/A	None	None	
4	4SSO10389	Active	Glendora City CS	Glendora City	893562	1.3	Certified	Robert Swartz	Sr. CE	21-FEB-24	29-FEB-24	29-FEB-24	Category 1 Spill	2341-0201 (226 East Lemon Avenue, Glendora)	02/17/2024 10:56	02/17/2024 12:22	02/17/2024 10:37	02/17/2024 13:45	24-1020		CSMD Map Sheet No. 2341 MMS No. 8655787 Manhole No. 201 was overflowing.	34.13056	117.86322	Manhole	Manhole No. 201		12000	Sewage was overflowing from manhole 201 onto the street.  A portion of the sewage spill entered a storm drain located at the end of the street, 201 E. Lemon Avenue.	Y	A portion of the sewage spill entered a storm drain located at the end of the street, 201 E. Lemon Avenue.	0	11400	A portion of the sewage spill entered a storm drain located at the end of the street, 201 E. Lemon Avenue, which leads to Lateral Maintained by City, City Drian, BI 0438 - Unit 2 - Line G, BI 0517 - Line B, Unknown Drain, Big Dalton Wash, Big Dalton Wash - Big Dalton DB to Walnut Creek, San Gabriel River. 	11400	600	Street/Curb and Gutter (2 3)		Sewage was overflowing from Manhole No. 201 onto the street.  A portion of the sewage spill entered a storm drain located at the end of the street, 201 E. Lemon Avenue, which leads to Lateral Maintained by City, City Drian, BI 0438 - Unit 2 - Line G, BI 0517 - Line B, Unknown Drain, Big Dalton Wash, Big Dalton Wash - Big Dalton DB to Walnut Creek, San Gabriel River. 	Y	34.13061	117.86359							02/17/2024 12:32	CWEA SSCSC Manhole Gauge. Visual or Eyeball Method.	The start time is obtained from the reporting party, the end time is when the crew clears the obstruction, and the overflow stops.	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline; Other (specify below)	The mainline between manholes 201 and 199 on the alley east of Vista Bonita Avenue. 	Vitrified Clay		63	N/A	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow		Sewage was overflowing from manhole 201 onto the street.  We set up containment at the end of the street, 201 E. Lemon Avenue.  We broke down heavy grease, roots, and non-disposable paper towel stoppage.  We rodded the mainline a second time on the alley east of Vista Bonita Avenue from m/h 201 to 199.  Afterward, the area was thoroughly cleaned with fresh water.  All required agencies were promptly notified.	Other (specify below)	Will inspect the mainline via CCTV to determine if further action is required.	Will inspect the mainline via CCTV to determine if further action is required.	N/A	02/17/2024 15:30	Will inspect the mainline via CCTV to determine if further action is required.	Y	Will inspect the mainline via CCTV to determine if further action is required.	04/15/2024 12:14	Big Dalton DB to Walnut Creek, San Gabriel River	River		Big Dalton DB to Walnut Creek, San Gabriel River	N/A	Other (specify below)	No impact.	N/A	0	N	N											Will inspect the mainline via CCTV to determine if further action is required.	
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	893569	1.2	Certified	Daniel Whitlock	Manager	21-FEB-24	20-MAR-24	20-MAR-24	Category 2 Spill	Franklin and Green	02/20/2024 15:35	02/20/2024 16:15	02/20/2024 12:55		-		Photos of Spill at Franklin and Green.	37.79744	-122.42544	Manhole			1042700	Spill flowed out of manhole N-35073 and N-27853 and flooded the intersection of Franklin and Green. 	N						1042700	Other (specify below); Paved Surface; Street/Curb and Gutter (2 3)	Catch Basins that lead to the combined system.	Spill came out of manholes N-35073 and N-27853 and flooded the intersection of Franklin and Green. 	Y	37.79743	-122.42546							02/20/2024 14:25	H&H Hydraulics calculated spill volume.	When model ran with no blockage of sewer, it indicated there was no spill. When model was run with 75 percent blockage it gave us a time interval that was consistent with eyewitness videos online that were timestamped. When model was ran with no blockage in the sewer, it indicated there was no spill.	Other (specify below)	After investigating we believe that the sewer was at capacity.	Gravity Mainline		Other (specify below)	Brick	1	Spill caused flooding of intersection of Franklin and Green. Reached the yard of a school at the intersection.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Other Enforcement Agency Notified	Returned all spill to combined sewer system	Spill was relieved and all spill returned to combined sewer system. Area of Franklin and Green hosed down and vac conned out.	Inspected Sewer Using CCTV to Determine Cause		CCTV order 8311275 did not find any visible damage or obstruction of pipe.	Spill start and end: 2/20/2024 CCTV inspesction: 3/5/2024	02/20/2024 17:02	CCTV inspection on 3/5/2024 found no visible damage or obstruction. However, with the model we ran, spill only could have happened if there was a blockage in the sewer. The most reasonable explanation is that the sewer was at capacity.	N												N													
2	2SSO10197	Active	St. Helena, City of, CS	St. Helena City	893574	1.2	Certified	Joseph M Leach	Director of Public Works	21-FEB-24	27-FEB-24	27-FEB-24	Category 1 Spill	290 Pope St 	02/19/2024 13:00	02/18/2024 22:00	02/19/2024 13:00	02/19/2024 18:03	24-1045		2/18/2024 monitoring the Collections System for SSO during storm event. 2/18/2024 manhole reached critical level requiring bypass pumping to contain all waste water to Collections System. Bypassed w/ 2 pumps at 4000 GPM. 2/19/2024 @ 1300 flows overcame the bypass pumping from heavy I and I and caused SSO to spill to storm drain. SSO concluded 2/19/2024 @2354. Bypass pumping to contain to Collections System concluded 2/21/2024 @ 0300 when flows receded in the Collections System. 	38.51158	-122.46081	Manhole			26775	Please see attached photos	Y	Storm Drain inlet drains to Sulphur Creek. See attached photos. 	0	0	Storm Drain out fall Sulphur Creek 	26775	4851600	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		2/18/2024 monitoring the Collections System for SSO during storm event. 2/18/2024 manhole reached critical level requiring bypass pumping to contain all waste water to Collections System. Bypassed w/ 2 pumps at 4000 GPM. 2/19/2024 @ 1300 flows overcame the bypass pumping from heavy I and I and caused SSO to spill to storm drain. SSO concluded 2/19/2024 @2354. Bypass pumping to contain to Collections System concluded 2/21/2024 @ 0300 when flows receded in the Collections System. 	Y	38.51158	-122.46081							02/19/2024 23:54	Method 1 Eyeball estimation reference sheet for estimating sewer spills  Method 4 Open channel spill estimation  Per the City of St Helena SSMP: SSO and Backup Response Plan Field Guide	Per City of St Helena SSO Response SOP sec. F Spill Documentation. SSO Incident Report Forms and Official Spill Records were generated.  	Flow Exceeded Capacity (Separate Collection System Only)	Storm related I and I 	Manhole		Cast Iron		40	Please see attached photos 	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Returned Portion of Spill to Sanitary Sewer System		2/18/2024 monitoring the Collections System for SSO during storm event. 2/18/2024 manhole reached critical level requiring bypass pumping to contain all waste water to Collections System. Bypassed w/ 2 pumps at 4000 GPM. 2/19/2024 @ 1300 flows overcame the bypass pumping from heavy I and I and caused SSO to spill to storm drain. SSO concluded 2/19/2024 @2354. Bypass pumping to contain to Collections System concluded 2/21/2024 @ 0300 when flows receded in the Collections System. 	Plan Rehabilitation or Replacement of Sewer		In house training on SSO SOP. Staff developed rigid discharge ends to allow pumping at higher volume. Communicated with Engineering Division for plans to rehab/replace and collect data for areas with high I and I.  	June 2024- Complete full CCTV inspection of entire Collections System  December 2024- Develop CIP to address key I and I locations  Summer 2025- Tentative construction of initial phase 	02/21/2024 03:00	Reviewed pumping records that showed increase in flows at lift stations due to high I and I. Staff conducts rounds of sewer system weekly and witnesses high flows due to I and I. During storm events staff conducts monitoring rounds to ensure proper response to SSOs.	Y	Completing CCTV of entire Collections System. Pursuing in manhole flow monitoring due to high flows caused by storm events.	06/30/2024 00:01	Sulphur Creek to Napa River 	River		Sulphur Creek to the Napa River 	No observed impacts to aquatic life 	Other (specify below)		City of St Helena 	0	N	N	N/A 	N/A									Completing CCTV of entire Collections System. Pursuing in manhole flow monitoring due to high flows caused by storm events.	
2	2SSO10179	Active	San Jose City CS	San Jose City	893575	1.1	Certified	Ben Nguyen	Senior Engineer		01-MAR-24	01-MAR-24	Monthly Category 3 Spill	15380 Union Ave San Jose CA 95124	01/18/2024 21:19	01/18/2024 21:40	01/18/2024 20:00				The spill appearance point was an upper lateral clean out at the property of 15380 Union avenue.	37.24516	-121.93092	Lateral Clean Out (Private)			203	The spill discharged from the private lateral cleanout and was contained within the private property's driveway, backyard, and front yard at 15380 Union Avenue.  The spill did not reach a storm drainage system or waterway.	N						149	Unpaved Surface		The spill discharged from the private lateral cleanout and was contained within the private property's driveway, backyard, and front yard at 15380 Union Avenue.  The spill did not reach a storm drainage system or waterway.  Coordinates of the spill address and general area are provided in 11.d and 11.e.	Y	37.24516	-121.93092							01/18/2024 22:55	The SSO volume was estimated using a measurements of the spill boundary. The First Responder documented pictures of the spill area.  Dimensions of the spill boundary were estimated during the responding activities.  Most of the spill volume was contained, cleaned up, and returned to the collection system.  It was assumed that the portion of the spill was soaked into the unpaved driveway, backyard and front yard of the property. Portion of spill soaked to the ground and was unable to recover. For the soil saturation it was assumed to be 18% of the total soil volume using an approximate depth. The methodology used to estimate  the spill volume was measurements of the spill recorded by the first responder. Crew used tape measure and measuring wheel to measure the spill area.  These dimensions were used to estimate the spill volume. The total estimated spill volume and information from the reporting party (RP) were used to assume a reasonable start time.	 The methodology used to estimate  the spill volume was measurements of the spill recorded by the first responder. The First Responder took the pictures of the spill area. Crew used tape measure and measuring wheel to measure the spill area.  These dimensions were used to estimate the spill volume. The total estimated spill volume and information from the reporting party (RP) were used to assume a reasonable start time. 	Fats, Oil and Grease (FOG)		Siphon		Cast Iron		67	The impact of the spill resulted was isolated to the area surrounding the upper lateral cleanout and within the private property's unpaved driveway, backyard, and front yard at 15380 Union Avenue.   There were no observed impacts to the publicly accessible areas, nearby waterways, or wildlife. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Upon arrival, the responding City Crew immediately documented the extent of the spill with picture and video, and determined the location of the blockage in the collection system. All the spill was contained within the property and did not reach a storm drain conveyance system or waterway. Once the blockage was cleared and the spill stopped, the Crew began their cleanup efforts. The crew used portable pump and vacuum truck to recover the spill above ground. Next, the crew washed down the affected area and recovered the induced water. It was assumed the some of the spill was soaked into the land and was unrecoverable.  As a result, the crew place odor enzyme granules to reduce the spill impact on the property.	Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause		The City has planned the following corrective actions for this sanitary sewer overflow:  1. Re-video the plugged sanitary pipe segment along with the upstream and downstream segments in 6months. 2. Distribute grease flyers to the nearby residents. 3. Repair manhole monitoring device upstream of the collection system failure location.		01/19/2024 00:39	While the Responding Crew cleared the blockage in the plugged sanitary mainline, the Crew documented their findings.  A pipe basket was used to collect grease that was removed while clearing the blockage within the mainline.  After conducting a follow up CCTV of the sanitary mainline pipe, there were no other major O&M observations or structural defects that may have contributed to the blockage. Therefore, it was determined that the cause was grease (FOG).		All investigation efforts concluded on 2/7/2024	02/07/2024 15:00														NA	The City has planned the following O & M modifications to prevent the repeat of the spill event. 1. Re-video the plugged sanitary pipe segment along with the upstream and downstream segments in 6months. 2. Repair manhole monitoring device upstream of the collection system failure location.	N/A	N/A	Problem sanitary sewer asset was video inspected after the SSO on 1/18/2024. No structural defects or other pipe defects were identified after clearing the blockage.	N/A	Manhole monitor was repaired on 2/5/2024	N/A	All investigation efforts concluded on 2/7/2024	
3	3SSO11524	Active	Monterey City CS	Monterey City	893576	1.3	Certified	Andrew Easterling	City Engineer	21-FEB-24	28-FEB-24	28-FEB-24	Category 1 Spill	23 Greenwood Vale Easement	02/20/2024 11:42	02/21/2024 12:30	02/18/2024 12:00	02/20/2024 12:13	24-1062		Appearance point was a City cleanout located in greenbelt area behind properties of 23 Greenwood Vale and 17 Greenwood Way.  Access to the easement area through 1 Wyndemere Way.	36.58827	-121.91751	Other (specify below)	Clean Out to City main (F02-018C)		50	50 gallon visual estimate based on wet area approximately 20' x 5' exiting City cleanout into greenbelt area.  Photos attached.  City crews were unable to clear blockage using hydrojet.  CCTV inspection identified a 100% collapse in the line approximately 20' from the cleanout.  There was only one house located at 17 Greenwood Way that was impacted by the blockage.  City crews used hand rods to dislodge the blockage and restore flow.  The City has reached out to Don Chapin Co. to provide an estimate to make an emergency repair.	Y	Unnamed drainage locally referred to as Wyndemere Creek (AKA Wyndemere log drops).  Photos attached.	0	50	Collapse in City main caused sewage to back up and surcharge out of City cleanout F02-018C.  Cleanout is located approximately 20' away from drainage at the top of bank.  A wet area and debris trail draining toward Wyndemere drainage was observed as seen in photos.  The spill was identified during a routine post rain inspection of the drainage area.  At the time of the observation sewage was not actively flowing, and it was estimated that the spill occurred over a 48 hour period.	50	0	Drainage Conveyance System that discharges to surface water		Spill was observed in a greenbelt area exiting a City sewer main cleanout with a flow path down an embankment toward Wyndemere drainage.  Most of the spill appeared to be contained within the grassy area, however it flowed up to the waters edge indicating that it had reached the drainage.  Ammonia test strips were used in the water adjacent to the impacted area but did not detect the presence of ammonia.	Y	36.58825	-121.91748							02/20/2024 12:45	A wet area approximately 20' x 5' was observed and a visual estimate of 50 gallons was made based on the amount of material contained in the greenbelt.  At the time of the observation, sewage was not actively flowing and it appeared that the spill had occurred within the last 48 hours.  None of the spill was recoverable as the liquid had absorbed into the ground.	The spill was not actively flowing at the time of the observation, and it was determined that one house was contributing to the spill.  Using the size of the spill path, it was estimated that the spill had slowly leaked over a 48 hour period.	Pipe Structural Problem/Failure - Controls		Gravity Mainline		Vitrified Clay		55	The spill was contained to a greenbelt area not readily accessible to people.  Most of the spill was absorbed into the ground leaving traces of sludge behind that were unable to be collected.  Spill path leads to the water edge indicating that the spill had reached the drainage.	N	Contained All or Portion of Spill; Restored Flow		City crews hydrojet the line from the downstream manhole and met an obstruction at approximately 260'  up the line, that they were unable to penetrate.  CCTV inspection revealed that the main was collapsed at that point causing the blockage.  Hand rods were used from the upstream cleanout to clear the obstruction approximately 20' from the end of line and restore flow.  A berm of mulch was placed at the base of the embankment to prevent further runoff from reaching the drainage.  The collapse was located and City is currently working with contractor to perform an emergency sewer repair.  The pipe is currently being monitored daily to ensure it is no longer surcharging.	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		CCTV inspection determined that the pipe had collapsed 20' from the cleanout and a point repair will need to be completed.  The City is currently working with Don Chapin Company to determine a plan and cost estimate for emergency repair.  Until the repair can be made, the City will be monitoring the cleanout to ensure it does not surcharge.	2/21/24 - City propose draft plan and scope of work to Don Chapin 2/22/24 - Field meet to determine access and BMP plan 2/27/24-2/28/24 - Tentative date of construction	02/20/2024 15:30	CCTV confirmed there was a collapse in the 6  vitrified clay pipe located 265' from the downstream manhole, and approximately 20' from the upstream cleanout.  One house lateral from 17 Greenwood Way was identified as being impacted by the blockage.  Hand rods were used to temporarily clear the blockage and restore flow.	Y	Ongoing monitoring until the City and its contractor can make a permanent repair.	03/01/2024 09:00	Upper Wyndemere	Other (specify below)	Ephemeral stream locally referred to as Upper Wyndemere Drainage	Ephemeral drainage that ultimately flows to Pacific Ocean approximately 2  miles away	No observed impacts.  Ammonia strips did not detect the presence of ammonia in the water at the time the spill was discovered.  There were no visible or odor present in the downstream channel for 300' where it enters the culvert.	Other (specify below)	The area is in a greenbelt area not readily accessible to the public.  Fences and a concrete wall block access from Greenwood Vale and Greenwood Way.  Rugged terrain through fallen trees in the greenbelt area make the area readily inaccessible to pedestrians.	N/A	0	N	Y	Field test strips for Ammonia did not detect any ammonia present in the immediate area of the spill.	NH3/NH4 ppm (mg/L) = 0									Ongoing monitoring until the City and its contractor can make a permanent repair.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	893580	1.3	Certified	Ameal McLaurin	Sewer Supervisor 2		21-FEB-24	21-FEB-24	Monthly Category 3 Spill	2506 11th Avenue, Oakland Ca	02/09/2024 17:15	02/09/2024 19:00	02/09/2024 09:00				Floor drain, shower drain, and toilet drainpipe in the basement of the structure.	37.79845	-122.23847	Inside Building or Structure			81	Sewage spill flowed from floor drain, shower drain, and toilet drainpipe in the basement of the structure. The sewage flooded the basement of the building/structure.	N						0	Building or Structure		Sewage spill flowed from floor drain, shower drain, and toilet drainpipe in the basement of the structure. The sewage flooded the basement of the building/structure.										02/09/2024 19:10	Bedroom: 10'L x 9'W x .02'D x 7.48-Gal = 14 Gallons  Bedroom: 10'L x 8'W x .02'D x 7.48-Gal = 12 Gallons Bathroom: 8'L x8'W x .02'D x 7.48-Gal = 10 Gallons Kitchen/Family room: 20'L x 10'W x .02'D x 7.48-Gal = 30 Gallons Entrance to the basement: 4'L x 3'W x .166'D x 5=7.48-Gal = 15 Gallons Total spill: 14 + 12 + 10 + 30 + 15 = 81 Gallons 	Start time was based on eyewitness account. End time was based on sewer crew restoring the flow in the mainline.	Damage by Others Not Related to Collection System Construction/Maintenance		Gravity Mainline		Vitrified Clay		36	Sewage spill flowed from floor drain, shower drain, and toilet drainpipe in the basement of the structure. The sewage flooded the basement of the building/structure.	N	Other Enforcement Agency Notified; Property Owner Notified; Restored Flow	Claim packet provided to building owner.	Claim packet provided to building owner for restoration company to clean up the basement.	Inspected Sewer Using CCTV to Determine Cause		CCTV inspection found that PG&E company had dug across the street at 2505 11th Avenue to repair a service gas line on 2/5/24. When the PG&E crew dug, they damaged the sewer lateral (Private) belonging to 2505 11th Ave. The broken sewer lateral allowed construction debris to flow inside the broken lateral to the city mainline causing a blockage and causing the flooding to the basement.		02/14/2024 09:51	CCTV inspection found that PG&E company had dug across the street at 2505 11th Avenue to repair a service gas line on 2/5/24. When the PG&E crew dug, they damaged the sewer lateral (Private) belonging to 2505 11th Ave. The broken sewer lateral allowed construction debris to flow inside the broken lateral to the city mainline causing a blockage and causing the flooding to the basement.		N/A	02/14/2024 09:51														N/A	PG&E crews dug and repaired the broken sewer lateral from 2505 11th Avenue.	N/A	N/A	Mainline was CCTV inspected on 2/14/24.	N/A	Mainline was CCTV inspected on 2/14/24, WO #1501982.	Mainline was CCTV inspected on 2/14/24, WO #1501982, the inspection shows the mainline without any defects.	N/A	
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	893584	1.2	Certified	Daniel Whitlock	Manager	22-FEB-24	07-MAR-24	07-MAR-24	Category 2 Spill	1001 Mariposa	02/21/2024 16:36	02/21/2024 17:05	02/19/2024 15:00		-		Spill was due to blockage in asset P-338504 . Spill came up through 2 vents attached to lateral L-327389 and flowed down street into catch basin N-53845.	37.76397	-122.39394	Lateral Clean Out (Private)	2 vents from a private lateral from the same building.	2 vents from a private lateral from the same building.	1280	Spill originated from L-327389 due to blockage in P-338504 and flowed down 24 feet into catchbasin N-53845.	N						1280	Other (specify below); Paved Surface; Street/Curb and Gutter (2 3)	Catch basins that lead to combined system.	Spill came from L-327389 and flowed down 24 feet into catchbasin N-53845 .	Y	37.76397	-122.39395							02/21/2024 19:04	42 gallons of water used per day per person (from SFPUC data) 2.29 people per household (Census data)  42 x 2.29 x 6 units in building x 0.7 (30% flow through pipe) = 403.96 gallons per day = 0.281 gallons per min  0.281 gallons per minutes x 4564 minutes (duration of spill)  1280 gallons	Witnesses noticed spill started around 15:00 on 2/19/2024.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		121	Spill originated from vents and flowed down curb gutter into a catch basin in the combined system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Restored Flow	Returned all spill to combined system. CCTV the pipe.	Crews arrived and relieved blockage around 5-10 feet from the downstream manhole. Washed and disinfected the area. CCTV for inspection.	Inspected Sewer Using CCTV to Determine Cause		CCTV found defective, possibly collapsed, pipe. WO 8289434 to repair pipe completed 3/4/2024.	Crews responded and relieved main and cleaned and disinfected area. CCTV inspection found that the pipe was defective. WO 8289434 repaired pipe on 3/4/2024.	02/21/2024 19:04	FOG caused overflow of vents. Crews restored flow and CCTV inspection found that pipe was also defective.	N												N													
5S	5SSO10938	Active	Easterly CS	Vacaville City DPW	893585	1.3	Certified	Justen Cole	Director Of Utilities	22-FEB-24	02-MAR-24	02-MAR-24	Category 1 Spill	290 East Monte Vista Ave.	02/16/2024 06:37	02/16/2024 06:00	02/16/2024 06:15	02/16/2024 10:03	24-0995		Several maps have been uploaded to provide a general description of the point of failure and the location of the storm drainpipe which conveyed the sewage to the creek. Pictures have been uploaded but additional pictures will be provided as the investigation progresses. 	38.35905	-121.99017	Other (specify below)	Storm Drain Outfall #SDOUT316	None	702	Pictures to be uploaded as the investigation progresses. 	Y	Staff CCTVed the storm drain and point of entry for sewage was observed.	0	0	Pictures show the sewage exiting the outfall.	702	0	Drainage Conveyance System that discharges to surface water		Uploaded pictures show the sewage exiting the storm drain outfall into Ulatis Creek.	Y	38.35903	-121.98877	38.35905	-121.98876	38.35894	-121.988			02/16/2024 08:58	Staff plans to check volume estimation by the following 3 methods and analyze which is most reasonable and defensible: 1) Visual or observed flow rate. 2) Commercial EDUs (Jack in the Box operates from 6am to 12 midnight and was the only business connected to the failed 6-inch sewer main. 3) Combination of flushing water used and flow from partially filled pipe. 	Volume estimation is based on the EDU plus the hydro flushing water. Further investigation is planned to provide a reasonable and defensible volume estimation.	Other (specify below)	Sewer Pipe Structural Failure 	Gravity Mainline		Vitrified Clay		60	Surface water in creek was cloudy, therefore confirming sewer spill. Creek is not used for recreational purposes.  	N	Cleaned Up (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		The 6  sewer line was manually plugged by Field Utilities at SSMH3232 on 2/16/2024, in order to redirect sewage flow on this 6  line to the 12  line which runs parallel along East Monte Vista. Although the City GIS does not display the information, an overflow connection exists between SSMH5343 and SSMH4591. The blocked sewage from this 6  line was redirected through this connection to the 12  line (SSMH4591-SSMH3233).	Other (specify below)	Plugged sewer main line at the failure point to temporarily divert the sewage to an overflow pipe which is upstream of the failure an connects to a 12-inch sewer main.  	Relocated sewer lateral for 290 E. Monte Vista Ave. (Jack in the Box) to 12-inch sewer main. Work was completed 2/22/2024. The unused and damaged section of the failed sewer main was plugged and abandoned in place.  	2/16/2024 - Plugged failure point on 6-inch sewer main and diverted the only sewer lateral connection to an adjacent 12-inch sewer main via an overflow port/pipe.  2/22/2024 - Installed new lateral connection from the Jack in the Box clean-out to the existing 12-inch sewer main.  	02/16/2024 14:30	Field Utilities staff stated that the sewer line causing the discharge to the creek was the 6  line that runs west to east on East Monte Vista (SSMH5343-SSMH3232). Staff also stated that the 6  line was flushed from 0615-0630, and that almost no flow was observed in this 6  line prior to hydro flushing. Jason stated that the only parcel serviced by this section of 6  line is Jack in the Box at 290 East Monte Vista, and that the business is closed from 12AM to 6AM.  Jason stated that the hydro flushing volume of flow would be between 15-20 GPM, and that during normal flow conditions it did not appear that the 6  line was discharging to SDOUT316.  Staff is further researching as-built drawings and investigating condition of pipe before the hydro-flushing began to properly estimate volume.	Y	Confirming pipe condition before spill and verifying volume estimations.	04/25/2024 17:00	Ulatis Creek	Other (specify below)	Creek	Seasonal Creek	None	Other (specify below)	Posted signage advising the public of sewage spill.	City of Vacaville	0	N	Y	Upstream, downstream, and at the storm drain conveyance which is the point of discharge (outfall).	Specific conductance, ammonia, total coliform, E. coli, pH, and temperature.									Confirming pipe condition before spill and verifying volume estimations.	
2	2SSO10166	Active	Piedmont City CS	Piedmont City	893587	1.1	Ready to Certify						Monthly Category 3 Spill	301 El Cerrito Avenue Piedmont,CA 94611	01/22/2024 15:45	01/22/2024 15:53	01/22/2024 15:30				Manhole on corner at 301 El Cerrito Avenue within construction zone	37.82435	-122.23794	Manhole			720	Total spill in construction zone	N						0	Unpaved Surface		construction zone										01/22/2024 15:54	San Diego flow chart	Matched flow using 5 gallon bucket and matched spill in construction zone	Debris from Construction		Manhole		Other (specify below)	HDPE	15	filled part of construction zone with raw sewage	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow	cleaned up all solids	Spill was contained to construction zone 	Repaired Facilities or Replaced Defect	More ispections during construction	More inspection within construction zone. Post spill meeting with construction company		01/22/2024 15:54	Construction company debris was found in direct vicinity of spill. Pulled construction debris out of offending manhole		Post construction inspection	01/22/2024 15:54														N/A	N/A	N/A	Repair defected manhole cone	Inspected and repaired manhole cone	N/A	N/A	Restore flow with hand rod and cleaned up any raw sewage solids	Post construction inspection	
8	8SSO10608	Active	BBARWWA CS	Big Bear Area Regional WW Agency	893589	1.1	Certified	John Shimmin	Plant Manager		23-FEB-24	23-FEB-24	Category 2 Spill	42825 Big Bear Blvd. Big Bear Lake, CA. 92314	02/22/2024 07:22	02/22/2024 07:45	02/22/2024 06:30	02/22/2024 10:09	24-1110		Force main sewer line failed.  There were multiple holes in the pipe that added up to 3 inches. 	34.25864	-116.86769	Force Main			1144	Spill occurred from underground. 	N						0	Unpaved Surface		Spill occurred on land surface. 	Y	34.25864	-116.86769							02/22/2024 07:23	Pipe size was used and hole diameter was used.  	Received call at 0722 and shutoff pump at 0723. 	Pipe Structural Problem/Failure - Installation		Force Main		Ductile Iron		50	No impact.  rainwater and snow melt in same location.  	Y	Contained All or Portion of Spill		Cleaned and removed all dirt and disposed of dirt at the treatment plant.  	Repaired Facilities or Replaced Defect		Future to line pipe with a pipe liner.  	Line pipe this summer.  	02/23/2024 11:22	Pipe failure. 	N												N													
8	8SSO11418	Active	Hemet City CS	Hemet City	893594	1.6	Certified	Travis Holyoak	Water Wastewater Superintendent 		05-MAR-24	05-MAR-24	Monthly Category 3 Spill	Kirby Ave/ Florida AVe.	02/22/2024 13:30	02/22/2024 13:22	02/22/2024 13:15				At North East point of the  intersection of Kirby/Florida, in Hemet, CA.	33.74748	-116.9978	Gravity Mainline; Manhole	none		900	Spill accrued at manhole located on the North East corner of Kirby St. and Florida Ave.  Spill flow down curb to the west.  Flow was damned up to stop flow .  once blockage was cleared, all spill was recovered using a vactor truck.	N						900	Street/Curb and Gutter (2 3)		spill started at Kirby/Florida, traveled west down Florida 2000ft where dam was installed.	Y	33.74749	-116.99778							02/22/2024 14:00	using the SSCSC Manhole overflow gauge measurement, 	using the overflow gauge and how far the flow traveled to determine when start of flow was.	Debris-Rags; Other (specify below)	liner	Gravity Mainline; Manhole		Concrete	liner	50	none	N	Restored Flow; Returned All Spill to Sanitary Sewer System		response including stopping the flow by installing a dam on the curb, then clearing blockage to return flows to normal	Adjusted Schedule/Method of Preventive Maintenance; Plan Rehabilitation or Replacement of Sewer		sewer line is currently underway of being replaced.		02/22/2024 16:00	cleared rags.  line is currently being replaced to eliminate the liner.		none	02/22/2024 16:30														none	replacement of line	none	underway currently	replacement is underway	CIP 5729	the replacement is in the City of Hemet's CIP plan #5729	none, 	none	
9	9SSO10710	Active	USMC Base, Camp Pendleton CS	US Marine Corps Base Camp Pendleton	893599	1.0	Work In Progress						Monthly Category 3 Spill	Building 170831 ARV	02/22/2024 11:00	02/22/2024 11:20	02/22/2024 11:20				Lat 33.28322, Long -117.30416. ARV assembly came apart at the separation ring during a monthly inspection of the ARV. Spill stayed on asphalt and evaporated.	33.28322	-117.30416	Other (specify below)	ARV		100	Spill stayed on asphalt and evaporated.	N						100	Paved Surface		Spill stayed on asphalt and evaporated.	Y	33.28322	-117.30416								Visual estimation.	ARV assembly came apart at the separation ring during a monthly inspection of the ARV. Spill stayed on asphalt and evaporated.	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure; Other (specify below)	ARV assembly came apart at the separation ring during a monthly inspection of the ARV. 	Other (specify below)	Building 170831 ARV. ARV assembly came apart at the separation ring during a monthly inspection of the ARV. 	Ductile Iron		5	Spill stayed on asphalt and evaporated.		Cleaned Up (specify below)	Spill stayed on asphalt and evaporated. Area was later hosed down.	Spill stayed on asphalt and evaporated.	Other (specify below)	None.	None.		02/22/2024 12:00	ARV assembly came apart at the separation ring during a monthly inspection of the ARV.		None.	02/22/2024 12:00														N/A	None.	ARV assembly came apart at the separation ring during a monthly inspection of the ARV.	None.	None.	None.	None.	None.	None.	
2	2SSO10087	Active	Alameda City CS	Alameda City	893601	1.4	Certified	Erin Smith	Public Works Director	23-FEB-24	26-FEB-24	26-FEB-24	Category 1 Spill	 305 Sunset Rd	02/20/2024 11:37	02/20/2024 11:41	02/19/2024 18:27		-		Appearance point at lower lateral cleanout 	37.76022	122.26507	Lower Lateral (Public)			65	Lower lateral cleanout into near by catch basin	Y	Near by catch basin into Alameda South Shore Beach	0	62	Catch basin to outfall that leads to South Shore Beach 	62	3	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		Spilled from sewer cleanout and reached storm catch basin that exited into Alameda South Shore Beach. 	Y	37.7602163	122.2650715	37.758923	122.264659					02/20/2024 11:52	Eye ball estimation and counting connections. 	First hand information from property owners son. 	Pipe Structural Problem/Failure - Controls		Lower Lateral		Polyvinyl Chloride (PVC)		36	Cat 1 spill under a thousand gallons that reached storm line that drains into the beach.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Used combo truck to clean and sanitize area. 	Added Sewer to Preventive Maintenance Program		We will add lower lateral to a three month inspection and flushing program. 	Three month inspection and flushing program	02/20/2024 11:52	Lower lateral had a sag in the line	N			South Shore Beach	Ocean		Alameda South Shore Beach	None 	Other (specify below)	No	East Bay Regional Parks	2	N	N												
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	893604	1.3	Certified	Daniel Whitlock	Manager	23-FEB-24	28-FEB-24	28-FEB-24	Category 2 Spill	2 Navy Road 	02/22/2024 11:21	02/22/2024 12:30	02/22/2024 10:00		-		Manhole N-31156 overflowed in the intersection in front of 2 Navy Road. Flow path went down two blocks to the intersection of Palou and Griffith Street and ended up in Combined catch basin N-396434. Main sewer is asset P-95898	37.72899	-122.37857	Gravity Mainline; Manhole	Spill originated from manhole due to blockage in Asset P-95898 which is a 12  VCP. Spill flowed down to catch basin connected to the combined system.		1260	Flowed downhill approx 575' in the curb and gutter into a combined catch basin. Asset # N-396434 	N						1260	Other (specify below); Paved Surface	Combined Sewer Catch Basin	The spill originated from manhole N-31156 and flowed down two blocks into catch basin N-396434.	Y	37.72899	-122.37858	37.72856	-122.37888	37.72823	-122.37915	37.72755	-122.3794	02/22/2024 13:00	Duration and flow method.  7 gpm x 180 mins = 1260 gallons	10 am start time to 1 pm stop time. 180 minutes of spill.	Debris-General		Gravity Mainline		Vitrified Clay		65	Spill originated from manhole N-31156 due to blockage of P-95898. Spill flowed down two blocks into catch basin N-396434. No property damage.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Restored Flow	Returned all spill to combined sewer system	Flushed asset P-95898. Relieved and restored flow. Returned all spill to combined system. Hosed down and disinfected the area. 	Inspected Sewer Using CCTV to Determine Cause		Follow up for CCTV created. Maximo WO 8292856	Spill start: 2/22 at 10:00 Spill stop: 2/22 at 13:00 CCTV WO 8292856 created	02/22/2024 14:00	There was a blockage in the gravity main from rags and grease. Waiting to hear from CCTV inspection if there is anything else.	N												N													
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	893605	1.4	Certified	Daniel Whitlock	Manager	23-FEB-24	08-MAR-24	08-MAR-24	Category 2 Spill	60 Crescent ave 	02/21/2024 09:10	02/21/2024 09:35	02/12/2024 17:00		-		Lateral clean out in backyard of 60 Crescent was overflowing. The easement main sewer is the cause. Asset # P-93523 is what caused overflow.	37.73494	-122.42304	Lateral Clean Out (Private)			34700	Spill was in the backyard of 60 Crescent Ave. coming out of 4 inch lateral riser.	N						0	Other (specify below); Unpaved Surface	Onto dirt	Clean out in backyard of 80 Crescent Ave.	Y	37.73493	-122.42305							02/23/2024 09:35	H&H Hydraulic Model	Used asset #N-30197 for model. Manhole located in backyard of #40 Agnon Ave. Model does not include laterals as an exit point for spills.	Root Intrusion		Gravity Mainline		Other (specify below)	ISP 8 	101	Overflow onto dirt in the backyard.	Y	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow		Recovered solids that we're on top of soil. Soil absorbed the majority of the spill.	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect		CCTV WO 8289441 completed 2/23/24. Found root intrusion and cracks in pipe. Recommend dig up via WO 8293031	Spill Started: 2/12 Spill ended: 2/23 CCTV: 2/23 Recommended for spot repair (WO 829031): Pending	02/23/2024 13:00	Televised Pipe on 2/23/2024. Found root intrusion to be the cause.	N												N													
4	4SSO10477	Active	Ojai Valley CS	Ojai Valley Sanitary District	893612	1.2	Certified	Israel Frias	LRO	23-FEB-24	07-MAR-24	07-MAR-24	Category 1 Spill	1000 Burnham Road	02/22/2024 13:49	02/22/2024 13:57	02/22/2024 12:30	02/22/2024 16:03	24-1119		Received call stating manhole was spilling. Upon arrival, it was confirmed manhole was spilling and there was a blockage in the line. The collections crew broke stoppage at 14:35. The District has CCTV'd the District's mainline and discovered a collapsed pipe. The district has mobilized a contractor to begin bypass and repair of the mainline.	34.41534	-119.30443	Manhole			34020	Within a ranch property, Spill occurred on a District easement. and flowed through a dirt stormwater conveyance system, eventually leading to the Ventura River. 	Y	Sewage flowed through dirt stormwater conveyance system through residential properties. 	34020	0	Sewage flowed through a dirt stormwater conveyance system, eventually entering the Ventura River. 	14520	19500	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water	N/A	The spill started inside ranch property at district easement manhole H-24-02, As it flowed through an adjacent property, it enters a drainage conveyance channel and, ultimately, entered the Ventura River. 	Y	34.41536	-119.30443	34.41383	-119.30424	34.41221	-119.3046	34.41157	-119.3024	02/22/2024 14:15	1. Flowrate in a sewer based on diameter and average flow depth.  pipe diameter 18-inch Asbestos cement pipe, slope .0029, slope flow rate (CFS) .72, slope flow rate. (GPM) 324 X 105 minutes of spill time= 34,020 gallons spilled.   2. CWEA SSCSC Manhole Overflow Gauge.   	A ranch property worker reported the spill, and when collections lead man arrived, he asked the worker when he noticed the spill. When the collections crew broke the stoppage and restored flow, the spill time ended. 	Other (specify below)	There was a partial collapse of the district's main sewer line, allowing debris, mud, and rocks into the main sewer line. 	Gravity Mainline	N/A 	Other (specify below)	Asbestos Cement Pipe. 	60	As a result of the spill, two ranches were affected, with sewage contaminating the dirt surface of the properties, the dirt drainage channel, as well as the Ventura River.  There was a closure of the Ventura River and local beaches for eight days, due to the spill. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified CAL OES, Ventura County Sheriffs OES and Ventura County Environmental Health.  See Attachment 	As soon as the spill call was received, the collection crew immediately drove our combination truck to the spill site, broke the stoppage, and restored flow. In order to contain and clean the area, the district hired a local vacuum truck contractor.  Vacuuming the spill was started by the contractor at the end of the spill prior to entering the Ventura River, while the collections crew washed everything down to the vacuum truck. 	Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect	N/A	Approximately 100 feet of asbestos cement pipe were removed and replaced with plastic pipe (SDR-35). Two upstream line segments from the spill were rehabilitated with cured in place pipe lining, about 400 feet.   	We have evaluated all the ACP within OVSD�s sewerage system since the spill on 2/22. We replaced 100 LF of damaged 18in and 21in ACP immediately, beginning construction on 2/23/24. We rehabilitated 440 LF of poor condition 18in ACP on 3/4/24. We are in design now on the rehabilitation of approximately 3,500 LF of 18in and 21in ACP that we plan to bid this Spring and rehabilitate this Summer. We are also in design to rehabilitate the remaining 3,450 LF of 21in and 24in ACP in this trunk line. We intend to rehabilitate that portion in the Summer of 2025. Due to cost, we may have to split the work over 3-4 years instead of 2, but we are hoping to get competitive pricing to complete the work by the end of 2025. We have an additional 350 LF of 8in, 1,100 LF of 16in, 1,200 LF of 18in, and 1,450 LF of 21in ACP in our sewer system that appears to be in good condition. In the long term, we plan to rehabilitate with CIPP or burst with HDPE all remaining ACP within our system. 	03/04/2024 15:30	After breaking stoppage with the combo truck Jetter, a damaged pipe with a visible void was discovered while CCTV'ing the district mainline, allowing debris, mud, and rock into the mainline and creating a stoppage. 	N	N/A		Ventura River and Pacific Ocean 	Ocean; River	N/A 	Partially flowing river and Pacific Ocean.  	None. 	Public Closure	N/A	Ventura County Environmental Health 	8	N	Y	See Attachment . 	Escherichia Coli Ammonia 									N/A	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	893614	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2		27-FEB-24	27-FEB-24	Monthly Category 3 Spill	7 Taurus Place, Oakland Ca	02/09/2024 14:55	02/09/2024 16:30	02/09/2024 12:45				Manhole was overflowing in the rear of the property, the sewage flowed down on the unpaved surface and soaked into the soil.	37.8428	-122.21679	Manhole			168	Manhole was overflowing in the rear of the property, the sewage flowed down on the unpaved surface and soaked into the soil.	N						0	Unpaved Surface		Manhole was overflowing in the rear of the property, the sewage flowed down on the unpaved surface and soaked into the soil.										02/09/2024 15:15	60'L x 4'W x .5'D x 7.48-Gal x .1875= 168 Gallons Calculated Width: 4' + 2' + 6' = 12' / 3 = 4'W	Start time was based on eyewitness account. End time was based on staff sewer crew restoring the flow.	Debris from Construction; Debris-General	Rocks and general debris blockage inside the outflow invert inside the Manhole.	Manhole		Other (specify below)	HDPE	32	Manhole was overflowing in the rear of the property, the sewage flowed down on the unpaved surface and soaked into the soil.	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow	Raked and hauled away contaminated spoils.	Raked and hauled away contaminated spoils.	Added Sewer to Preventive Maintenance Program		Mainline has been placed on 6-Month high frequency maintenance program, WO# 1504744.		02/10/2024 12:30	Rocks and general debris blockage inside the outflow invert inside the Manhole.		CCTV WO# 1502088 was created for mainline inspection.	02/29/2024 12:00														N/A	Mainline has been placed on 6-Month high frequency maintenance program, WO# 1504744.	Mainline has been placed on 6-Month high frequency maintenance program, WO# 1504744.	N/A	CCTV WO# 1502088 was created for mainline inspection.	N/A	Mainline has been placed on 6-Month high frequency maintenance program, WO# 1504744. CCTV WO# 1502088 was created for mainline inspection.	Mainline has been placed on 6-Month high frequency maintenance program, WO# 1504744. CCTV WO# 1502088 was created for mainline inspection.	CCTV WO# 1502088 was created for mainline inspection.	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	893340	2.1	Amended	Kent Vian	Asst. Deputy Director	07-FEB-24	26-FEB-24	26-FEB-24	Category 1 Spill	NOT# 40201062246 AT 825 N. HARBOR DR.	02/06/2024 13:00	02/06/2024 13:00	02/06/2024 12:00	02/06/2024 13:02	24-0746	22-MAR-24	SPILL ORIGINATION WAS FROM MULTIPLE LOCATIONS ALONG HARBOR DR AND A JUNCTION STRUCTURE BELOW THE I5 & I8 FREEWAY.	32.76025	-117.20408	Inside Building or Structure; Manhole	N/A	N/A	77050	MANHOLES 700 WEST HARBOR DRIVE SAN DIEGO RIVER OVERFLOW STRUCTURE        LATERALS 700 W. HARBOR DR.                   10661724 4236 VENUS ST.                          10970758 1205 PACIFIC HWY.                     10638294 285 J STREET	Y	THE SEWER HIT A STORM DRAIN AND THE OUTFALL WAS SAN DIEGO BAY. THE SPILL ALSO ENTERED THE SAN DIEGO RIVER.	0	0	THE DISCHARGE POINT WAS INTO THE SAN DIEGO BAY AND SAN DIEGO RIVER.	72650	4400	Building or Structure; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface	N/A	MULTIPLE SPILL APPEARANCE POINTS, INCLUDING INSIDE BUILDINGS AT 700 W. HARBOR DR., 285 J ST., AND 1205 PACIFIC HWY. THERE WERE ADDITIONAL SPILL APPEARANCE POINTS COMING FROM A MANHOLE IN FRONT OF 700 W. HARBOR DR. AND A JUNCTION STRUCTURE LOCATED BELOW THE I-5 AND I-8 JUNCTION.	Y	32.71151	-117.1696	32.71169	-117.16952	32.71809	-117.17069	32.75961	-117.20416	02/06/2024 14:20	VISUAL CALCULATED METHOD.	THE ASSUMPTION OF SPILL START TIME WAS WHEN CREWS HAD RECEIVED CALLS THAT THE BUILDINGS WERE FLOODING AND VISUAL OBSERVATIONS OF THE SPILL.	Flow Exceeded Capacity (Separate Collection System Only); Natural Disaster (specify below); Rainfall Exceeded Design, I and I (Separate Collection System Only)	THE CITY OF SAN DIEGO SUFFERED A HISTORIC RAIN EVENT ON FEBRUARY 5 AND 6. THE EVENT DROPPED A HISTORIC AMOUNT OF RAIN OVER TWO DAYS ALONG THE SAN DIEGO RIVER WATERSHED, CAUSING SEVERE INFLOWS INTO THE WASTEWATER CONVEYANCE SYSTEM, OVERWHELMING THE SYSTEM AND CAUSING OVERFLOWS.	Lower Lateral; Manhole; Other (specify below)	SYSTEM-DESIGNED OVERFLOW STRUCTURES TO RELIEVE THE SYSTEM OF SURCHARGE WHEN INFLOW EXCEEDS SYSTEM DESIGN CAPACITY.	Concrete	N/A	60	THE IMPACTS OF THE SPILL WERE TO SURFACE WATERS�NO OTHER ADVERSE EFFECTS NOTED AT THIS TIME.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	SPILL RESPONSE ACTIVITIES WERE TO MONITOR THE SEWER RELEASE FROM THE OVERFLOW STRUCTURES, MANHOLES AND LATERALS UNTIL THE CATASTROPHIC RAIN EVENT ENDED AND THE SURCHARGED COLLECTION SYSTEM CAUGHT UP TO CONVEY FLOW. CLEAN-UP EFFORTS WERE CONDUCTED ON 2/07/2024 USING VACUUM TRUCKS AND RESTORATION CONTRACTORS.	Other (specify below)	WAITED FOR THE CATASTROPHIC RAIN EVENT TO END AND THE SURCHARGED COLLECTION SYSTEM TO CATCH UP.	LIMIT SOURCES OF I & I TO PREVENT THE SYSTEM FROM BEING OVERWHELMED BY SEVERE RAIN EVENTS.	TBD	02/06/2024 18:00	CATASTROPHIC RAIN EVENT	N	N/A		SAN DIEGO BAY, PACIFIC OCEAN.	Ocean; River	N/A	THE PACIFIC OCEAN IS ONE OF SEVEN OCEANS THAT COVER NEARLY THREE-FOURTHS OF THE SURFACE OF THE EARTH. 	NO KNOWN IMPACTS TO AQUATIC LIFE.	Public Closure	N/A	DEPARTMENT OF ENVIORNMENTAL HEALTH	3	N	Y	SEE ATTACHED	SEE ATTACHED									N/A	
5S	5SSO11055	Active	Southeast Regional Waste Disp Fac CS	Lake Cnty	893619	1.3	Certified	George Hornung	Deputy Administrator	26-FEB-24	06-MAR-24	06-MAR-24	Category 1 Spill	3905 Monterey Dr	02/24/2024 15:42	02/24/2024 15:55	02/24/2024 15:32	02/24/2024 19:40	24-1161		The spill was from a manhole and spilled directly into Clear Lake.	38.98027	-122.68866	Manhole			4967	The spill was from a manhole on the shore of Clear Lake.  Due to the high lake level the manhole was surrounded by water.  When the manhole spilled it spilled directly into Clear Lake.	N				The spill was from a manhole on the shore of Clear Lake.  Due to the high lake level the manhole was surrounded by water.  When the manhole spilled it spilled directly into Clear Lake.	4967	0	Other (specify below)	Spilled directly into Clear Lake	The manhole is located along the shore of Clear Lake.  Due to the high lake level the manhole is surrounded by Clear Lake.  The spill was from the manhole and spilled directly into Clear Lake.	N									02/24/2024 18:01	The estimate was based on the spill rate multiplied by the duration of the spill.  The spill rate was determined by a video received from the witness who called the spill into the answering service and field staff estimates.  The duration of the spill was determined by the start and end times multiplied by the percentage of time the spill was actively spilling.  The spill was intermittent and would start and stop.  It was spilling approximately a third of the time and stopping for approximately two thirds of the time.	The start time was based off of information received from the witness who called the spill into the answering service.  The end time was based off of field staff present at the spill location when it ceased.	Debris-wipes/Non-disposables		Manhole		Ductile Iron		42	The spill was from a manhole and spilled directly into Clear Lake.	N	Cleaned Up (specify below); Restored Flow		Staff arrived at the site, cleared the blockage and restored normal sewer flow and cleaned up the shoreline.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		This section of sewer will be cleaned and inspected with a camera to determine if there are any issues with the sewer that may have contributed to the spill.	N/A	02/24/2024 21:30	The cause of the spill was gravel and disposable wipes causing a blockage in the sewer which caused a spill from the upstream manhole.	N			Clear Lake	Lake		Clear Lake	None observed	Other (specify below)	The section of shoreline is not accessible to the public.	Environmental Health and Public Health	0	N	Y	See sampling map	total coliform and e.coli										
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	893620	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		02-APR-24	02-APR-24	Monthly Category 3 Spill	2209 North Canyon Drive	02/25/2024 08:47	02/25/2024 08:57	02/25/2024 08:47				The initial crew arrived at 8:57 A.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. Upon arrival, back up has ceased. All necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.11023	-118.31694	Lateral Clean Out (Private); Manhole	Private Lateral.	None.	219	Pictures Of The Sanitary Sewer Overflow.	Y	None.	35				219	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	34.11023  -118.31694	Y	34.11023	-118.31694	34.110213	-118.317611					02/25/2024 08:57	Spill flowrate and volume determination based on flowout pickhole or opening 	Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening0.125inches Flowrate per pickole/opening (gpm)1gpm # of pickholes/openings2 Total flowrate (gpm)1gpm Duration of spill (minutes)10minutes Total flow (gallons)14gallons  Diameter of pickhole or opening4inches Height of water out of pickhole/opening0.125inches Flowrate per pickole/opening (gpm)20gpm # of pickholes/openings1 Total flowrate (gpm)20gpm Duration of spill (minutes)10minutes Total flow (gallons)205gallons 	Root Intrusion		Gravity Mainline		Vitrified Clay		108	It was estimated that approximately 229 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned All Spill to Sanitary Sewer System		On Sunday, February 25, 2024 at 8:47 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 2209 North Canyon Drive (TG 593-G3). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. Upon the crew�s arrival, the sewer line was not backing up. The cause of the blockage is unknown. All necessary clean-up was then performed.  It was estimated that approximately 229 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	Inspected Sewer Using CCTV to Determine Cause		Pipeline Will Be Placed On Semi-Annual Maintenance Schedule. With Planned Repairs By The City On-Call Contractor.		02/25/2024 08:57	A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. Upon the crew�s arrival, the sewer line was not backing up. The cause of the blockage is unknown. All necessary clean-up was then performed.		Not At This Time.	02/25/2024 08:57														Not At This Time.	Pipeline Will Be Placed On Semi-Annual Maintenance Schedule. With Planned Repairs By The City On-Call Contractor.	Pipeline Will Be Placed On Semi-Annual Maintenance Schedule. With Planned Repairs By The City On-Call Contractor.	Pipeline Will Be Placed On Semi-Annual Maintenance Schedule. With Planned Repairs By The City On-Call Contractor.	Pipeline Will Be Placed On Semi-Annual Maintenance Schedule. With Planned Repairs By The City On-Call Contractor.	None At This Time.	Pipeline Will Be Placed On Semi-Annual Maintenance Schedule. With Planned Repairs By The City On-Call Contractor.	On Sunday, February 25, 2024 at 8:47 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 2209 North Canyon Drive (TG 593-G3). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. Upon the crew�s arrival, the sewer line was not backing up. The cause of the blockage is unknown. All necessary clean-up was then performed	Not At This Time.	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	893622	1.1	Certified	David Leamer	Assistant Superintendent		27-FEB-24	27-FEB-24	Monthly Category 3 Spill	338352	01/31/2024 13:22	01/31/2024 13:57	01/26/2024 14:00				See Attachment, Spill Map and Photos	38.67753	-121.20981	Manhole	N/A		310	See Attachment, Spill Map and Photos	N						40	Unpaved Surface		See Attachment, Spill Map and Photos	N									01/31/2024 15:25	See Attachment, Spill Volume Estimation.	See Attachment, Spill Volume Estimation.	Root Intrusion		Gravity Mainline		Vitrified Clay		54	No observed impact of spill	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		SacSewer crews broke the stoppage in the main line and cleaned the affected dirt alleyway using broom and hydro-vacuum truck. Sewage remaining on land was partially recovered. A portion of sewage soaked in/evaporated from a five-day intermittent spill.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		SacSewer inspected mainline with CCTV on (Date). Based on findings, SacSewer increased preventative cleaning frequency to 12 months from 24 months.		01/31/2024 18:06	SacSewer crews broke the stoppage in the main line and cleaned the affected dirt alleyway using broom and hydro-vacuum truck. 		None	01/31/2024 18:06														N/A	SacSewer increased preventive cleaning frequency from 24 months to 12 months.	SacSewer increased preventive cleaning frequency from 24 months to 12 months.	N/A	SacSewer inspected mainline with CCTV on 2/14/24.	N/A	SacSewer increased preventive maintenance frequency on 2/27/24	None	None	
2	2SSO10170	Active	Richmond City CS	Richmond City	893623	1.2	Certified	MARY PHELPS	PROJECT MANAGER I		28-FEB-24	28-FEB-24	Monthly Category 3 Spill	2548 Maricopa	01/30/2024 08:08	01/30/2024 09:00	01/30/2024 07:08				Spill appeared from private lateral at 2548 Maricopa.  See attached photos	37.95042	-122.34337	Lateral Clean Out (Private)			70	See attached photos	N						70	Other (specify below)	Sanitary sewer conveyance	See attached photos	N									01/30/2024 12:00	Visual assessment based on operator training	Standard practice is to add 60 minutes to the time of initial call if onsite investigation does not reveal a corroborated definitive start time.	Debris-Rags; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		35	Contained spill. Spill was returned to sanitary sewer. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned All Spill to Sanitary Sewer System		Contained spill and relieved blockage from gravity sewer main.  Returned spill and cleanup water to sanitary sewer. See attached photos.	Other (specify below)	Residential FOG outreach	Provided FOG outreach to residential properties that contribute to that segment of sewer system. 		01/30/2024 12:00	Investigation occurred during activities related to relieving the blockage from the gravity main. 		N/A	01/30/2024 12:00														N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	
8	8SSO10580	Active	Inland Empire Utilities Agency CS	Inland Empire Utilities Agency	893627	1.2	Certified	Lucia Diaz	Manager of Facilities & Water System Programs	26-FEB-24	06-MAR-24	06-MAR-24	Category 2 Spill	El Prado Road RP-5 Primary Sludge Line	02/21/2024 04:22	02/21/2024 04:22	02/21/2024 00:00		-		RP-5 Primary Sludge Line to RP-2 on El Prado Road	33.9623449	-117.6753065	Force Main; Other (specify below)	Broken asphalt raised from pressure of force main rupture		71550	The spill occurred on El Prado Road in the City of Chino. Large ponding of sludge along the road.	N						70119	Paved Surface; Unpaved Surface		Spill was on El Prado Road and an adjacent empty field. 	Y	33.9623449	-117.6753065							02/21/2024 04:25	Flow rate calculations	Flow rate calculation based on 270 gallons per minute (gpm) and a start time of midnight due to reports that road was still clear at midnight. 270 gpm x 265 minutes = 71,550 gallons	Pipe Structural Problem/Failure - Installation		Force Main		Ductile Iron		22	Spill did not reach drainage conveyance or surface water. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		At 6:30 a.m. on 2/21/24, IEUA and City of Chino Collections staff were onsite to begin cleanup efforts. Other Mutual Aid vehicles arrived shortly after, as well as contractor Norstar who responded to the emergency project request. Additional IEUA Operations and Maintenance staff were mobilized to aid in the cleanup efforts two loaders were brought from RP-2 to move sludge. 	Other (specify below); Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect	Bypass of compromised pipeline.	Primary sludge pumping was stopped from the plant to allow repairs to be made. 55 feet of pipe were excavated and replaced. During the testing of the repair operations pressurized the line with recycled water and a new leak occurred causing a second spill which will have its own incident report. The recycled water was shut off and a new excavation and repair was performed. During this time, it was determined the entire pipeline needed to be taken out of service and a project was started to install valving at both the discharge plant and the receiving plant, which would allow operations to divert primary sludge into the waste activated sludge (WAS) line. This was completed as of 2/23 and the compromised primary sludge line has been taken out of service until further assessment can be made and a plan to address it has been formulated.	Engineering, Operations, and Asset Management departments are currently evaluating options to repair the line, reroute the line, or any other feasible alternatives. The plant is currently operating by pumping primary sludge overnight and switching to WAS pumping during the day.	02/21/2024 15:20	Once the RP-5 primary sludge line was excavated, the line showed significant crown corrosion on the top of the line. This particular line had a few problems, which have now been discovered. There was no apparent cathodic protection to prevent corrosion and the soil is very wet due to the high water table in the area. The air vacs/reliefs were not properly operational, allowing gas and air to get trapped at high points along the line. The abrasive sludge wore out the glass lining thus exposing the pipe wall to hydrogen sulfide damage and corrosion. An inspection of the pipe was performed following a simliar incident in July 2022 and the contractor miscoded the observations and deposits attached when in reality there were large tubercles forming, a sign of corrosion.	N												N													
8	8SSO10580	Active	Inland Empire Utilities Agency CS	Inland Empire Utilities Agency	893632	1.2	Certified	Lucia Diaz	Manager of Facilities & Water System Programs	26-FEB-24	06-MAR-24	06-MAR-24	Category 2 Spill	El Prado Road RP-5 Primary Sludge Line	02/22/2024 07:00	02/22/2024 07:00	02/22/2024 06:55		-		RP-5 Primary Sludge Line to RP-2 on El Prado Road	33.9610791	-117.6753065	Force Main; Other (specify below)	Cracks in asphalt		4114	After pipeline repairs were completed on the broken force main from the 2/21/24 incident, the line was charged with recycled water to test. During testing a new leaking point was discovered approximatley 100 yards south of the repair. Recycled water was shut off and clean up began. The spill was confined to a small area along El Prado Road and contained by a berm still in place from the previous day. All flows were recovered.	N						4114	Paved Surface		Spill was on El Prado Road	Y	33.9610791	-117.674146							02/22/2024 07:01	Measured volume using wetted area and depth for the paved surface.	Measured volume for the surfaces where the sludge was collected on the pavement.	Pipe Structural Problem/Failure - Installation		Force Main		Ductile Iron		22	Spill did not reach drainage conveyance or surface water. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Returned All Spill to Sanitary Sewer System		One IEUA collections truck was onsite with contractor's truck and clean up commenced. The spill was contained along the curb and gutter due to a berm being in place as a preventative measure. 	Other (specify below); Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect	Bypass of compromised pipeline.	On the morning of 2/22/24, testing occurred for the primary sludge line repair that took place the previous day. A new leak was discovered downstream of the repaired section and a new excavation and repair was performed. During this time, it was determined the entire pipeline needed to be taken out of service and a project was started to install valving at both the discharge plant and the receiving plant, which would allow operations to divert primary sludge into the waste activated sludge (WAS) line. This was completed as of 2/23 and the compromised primary sludge line has been taken out of service until further assessment can be made and a plan to address it has been formulated.	Engineering, Operations, and Asset Management departments are currently evaluating options to repair the line, reroute the line, or any other feasible alternatives. The plant is currently operating by pumping primary sludge overnight and switching to WAS pumping during the day.	02/22/2024 08:40	A section of the primary sludge line was repaired the previous day, 2/21/24. The pipeline was tested with recycled water the next morning on 2/22/24. Testing was successful and primary sludge flow was temporarily restored until it was discovered that another section downstream of the repair had ruptured and resulted in a spill. 	N												N													
4	4SSO11368	Active	West Hollywood CS	West Hollywood City	893634	1.3	Certified	Robert Swartz	Sr. CE	26-FEB-24	14-MAR-24	14-MAR-24	Category 1 Spill	1529-0218 (8455 West Fountain Avenue, West Hollywood)	02/21/2024 11:30	02/21/2024 11:40	02/21/2024 10:15	02/21/2024 12:10	24-1089		CSMD Map Sheet No. 1529 MMS No. 8662928 Manhole 218 was overflowing. 	34.09286	118.37557	Gravity Mainline; Manhole	Manhole No. 218		4125	Sewage was overflowing from manhole no. 218 onto the street.  A portion of the sewage spill entered a storm drain located at 8447 Santa Monica Blvd.	Y	A portion of the sewage spill entered a storm drain located at 8447 Santa Monica Blvd., which leads to Ballona Creek.	0	1875	A portion of the sewage spill entered a storm located at 8447 Santa Monica Blvd.	1875	2250	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Sewage was overflowing from manhole no. 218 onto the street.  A portion of the sewage spill entered a storm drain located at 8447 Santa Monica Blvd., which leads to Ballona Creek. 	Y	34.09086	118.3747							02/21/2024 13:00	CWEA SSCSC Manhole Gauge 	The start time is obtained from the reporting party, the end time is when the crew clears the obstruction, and the overflow stops.	Debris-Rags		Gravity Mainline		Other (specify below)	LVCP_CIP	63	N/A	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Sewage was overflowing from manhole no. 218 onto the street.  We set up containment by the storm drain and attempted to hand rod, but it was unsuccessful.  We then proceeded to hydro manholes 361 to 218 and broke down heavy rag stoppage. Finally, we set a vactor at the catch basing to vacuum the contained sewage, and the area was thoroughly cleaned with fresh water.  All required agencies were promptly notified. 	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below)	Recommended to place sewer on a 120-day Hydro preventive maintenance program (S09SS761). Also, to inspect and monitor the condition.	Recommended to place sewer on a 120-day Hydro preventive maintenance program (S09SS761). Also, to inspect and monitor the condition.	N/A	02/21/2024 13:30	Recommended to place sewer on a 120-day Hydro preventive maintenance program (S09SS761). Also, to inspect and monitor the condition.	N			Ballona Creek, Santa Monica Bay	Ocean; Other (specify below)	Ballona Creek	Ballona Creek, Santa Monica Bay	No impacts.	Other (specify below)	No impact.	N/A	0	N	N												
2	2SSO11533	Active	SLAC National Accelerator Laboratory CS	US Dept of Energy	893637	1.2	Amended	Jo Beth Folger	Civil engineer		27-FEB-24	27-FEB-24	Monthly Category 3 Spill	Building 031 Cleanout	01/23/0024 09:30	01/23/0024 09:50	01/23/0024 09:20				Building 031 Cleanout  	37.416964	122.204397	Lateral Clean Out (Private)			50	Spill flowed from the B031 cleanout down the B031 driveway to PEP Ring Road. It entered a catch basin (CB 31E-5) on the East side of PEP Ring road. It did not leave this catch basin.   An estimated 10 gallons reached the storm drain catch basin. The remaining estimated 40 gallons remained on the pavement leading to the catch basin. 	Y	Catch Basin CB31E-5. This catch basin was already outfitted with an insert to collect leaves, sediment, and other debris. An estimated 10 gallons reached the storm drain catch basin.	10				15	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Final destination was CB31E-5	Y	37.41695	122.204828							01/23/2024 09:40	Using the SSCSC Manhole Overflow Reference, the total spilled volume was estimated to be between 25 to 50 gallons. 50 gallons is reported here to be conservative.   The quantity of water recovered from the catch basin was calculated to be 10 gallons based on the catch basin dimensions (2 ft x 2 ft x ~5� water depth).   The quantity of water recovered from the street was estimated to be 5 gallons based on the capacity of the shop vac used to remove the water.  The remaining quantity of water evaporated.  	Spill start and end time were estimated based upon when the spill was spotted and the extent the water had spread prior to responders arriving.	Root Intrusion		Lower Lateral		Vitrified Clay		60	The spilled water flowed approximately 170 feet along a paved driveway until it reached a storm drain catch basin. It did not exit the storm drain catch basin. The road was closed to vehicular traffic until the area could be disinfected. The storm drain catch basin was opened and cleaned out.	N	Cleaned Up (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Immediately following the spill, sandbags were placed around the cleanout and the bathrooms within B031 were closed off to prevent any additional overflow. The road was closed to prevent vehicles from driving through the spilled material.   Response personnel used a shop vac to vacuum up spilled liquids. The storm drain catch basin was opened up and cleared out with the shop vac. The catch basin was then rinsed out with 3 gallons of domestic water. The rinsewater was vacuumed up and returned to sanitary sewer. The road was sprayed with a 10% bleach solution.   All collected liquids were returned to the sanitary sewer and all collected solids were properly disposed of with the assistance of Waste Management. 	Repaired Facilities or Replaced Defect		Facilities personnel unsuccessfully attempted to snake the line clear. A rooter contractor was called to clear the source of the blockage. The contractor was able to locate, cut, and remove a tree root ball blocking the sanitary sewer line.   Preventative maintenance will continue to be regularly performed on this line to minimize the possibility of reoccurrence.  		01/23/2024 17:00	Personnel from SLAC�s Environmental Protection group observed the cleanup.  A rooter contractor was called to clear the source of the blockage. The contractor was able to locate, cut, and remove a tree root ball blocking the sanitary sewer line. This tree root ball was the cause of the spill. 		None	01/23/2024 17:00														None	None	None	None	Sewer line was inspected and cleared	None	None	None	None	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	893641	1.2	Certified	John J. Hough	San Dist. Superintendent	27-FEB-24	08-MAR-24	08-MAR-24	Category 1 Spill	339386	02/22/2024 15:18	02/22/2024 15:18	02/22/2024 05:27		-		See Attached Spill map with Photos.	38.6732	-121.3552	Lateral Clean Out (Public); Manhole			349	See Attached Spill map with Photos.	Y	See Attached Spill map with Photos.	0	0	See Attached Spill map with Photos.	333	344	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See attached Spill Map with Photos.	Y	38.6732	-121.3552	38.673	-121.3554	38.6734	-121.3577	38.6685	-121.3669	02/22/2024 15:30	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Root Intrusion		Gravity Mainline		Vitrified Clay		62	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified Sacramento County Department of Water Resources via Sacramento County Central Dispatch.	See Attached Description of Spill Event	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause	SacSewer inspected the main line with CCTV on February 22, 2024. Based on the findings, SacSewer changed the preventative maintenance cleaning frequency of the main line from 24-month to 12-month.	See Attached Description of Spill Event.	SacSewer adjusted the preventative maintenance schedule on 2/26/24.	02/23/2024 01:45	See Attached Description of Spill Event	N			Magpie Creek	Stream/Creek		Concrete lined channel with light flow and areas of ponding.	No observed impacts to aquatic life.	Other (specify below)	No public access impact.	N/A	0	N	N												
2	2SSO10104	Active	Ccsf - San Francisco Airport CS	CCSF - San Francisco Airport	893647	1.1	Certified	Jennifer Acton	Director of Maintenance		29-FEB-24	29-FEB-24	Monthly Category 3 Spill	B19 Sewage Ejector Pump Station	01/29/2024 13:30	01/29/2024 13:45	01/29/2024 13:00				Spill originated from a sanitary floor drain located within tenant storage space inside the terminal building.  Only one appearance point.	37.611388	-122.385788	Inside Building or Structure; Other (specify below)	One sanitary sewer floor drain inside tenant storage area		347	Spill impacted tenant storage space inside terminal building and flowed down gradient outside onto the airfield operation paved ramp surface.  Spill continued to flow down gradient and split into two sections.  One section near Gate B16 and the other section near Gate B19.  Spill then flowed northwest and down gradient towards the taxilane, stopping near the vehicle service road. 	Y	Two storm drain catch basins	25				347	Building or Structure; Drainage Conveyance System; Paved Surface		Spill impacted tenant storage space inside terminal building and flowed down gradient outside onto the airfield operation paved ramp surface.  Spill continued to flow down gradient and split into two sections.  One section near Gate B16 and the other section near Gate B19.  Spill then flowed northwest and down gradient towards the taxilane, stopping near the vehicle service road. 	Y	37.611367	-122.386014	37.611537	-122.38573	37.611877	-122.386838	37.611599	-122.387017	01/29/2024 14:40	Spill volumes estimated using area volume calculations from measurements collected in field by the responding Airport Spill Team.   	Estimated spill times were determined using information provided by Airport staff who responded to the incident. 	Debris-General; Pump Station Failure - Mechanical		Pump Station - Mechanical		Other (specify below)	Pump station mechanical failure.  Piping info. not applicable	0	Spill affected floor surface inside tenant storage area and flowed down gradient outside onto the airfield operations ramp impacting two aircraft gates.  Two down gradient storm drain catch basins were affected.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Airport Airfield Safety, Fire Dept., Facilities and Spill Team responded to incident.  Airport Fire Dept. used absorbent to protect down gradient storm drain catch basins.  Airport Facilities reset ejector pump system and restored flow to the pump and system.  As a precautionary measure, Airport Plumbers used vactor truck and hydrojetted downstream sewer line.  Airport Custodians cleaned affected interior floor surfaces.  Scrubbing contractor cleaned the affected paved surfaces.  Airport Plumbers used vactor truck and hydrojetter to pump out and clean/flush the affected storm drain catch basins.  All wastewater from cleaning was return to the Airports sewer system for processing.  	Repaired Facilities or Replaced Defect		Pump reset and flow restored to system.  Airport Facilities to closely monitor.		01/29/2024 16:00	Investigation determined that the sewage ejector pump failed as a result of general debris causing a mechanical pump failure.  This caused the system to trip and shut off power to the pump.  		NA	01/29/2024 16:00														NA	NA	NA	NA	Ejector pump system reset and flow restored	NA 	NA	NA	NA	
8	8SSO10565	Active	Corona City CS	Corona City DWP	893648	1.1	Certified	Aftab Hussain	Maintenance Manager		19-MAR-24	19-MAR-24	Monthly Category 3 Spill	1697 Bel Air 	02/03/2024 18:24	02/03/2024 18:44	02/03/2024 18:24				Spill extended from 1697 Bel Air to 1687 Bel Air, minimal amount of overflow exiting the system.	33.85895	-117.53487	Manhole			450	Spill extended from 1697 Bel Air to 1687 Bel Air, minimal amount of overflow exiting the system. Photos attached.	N						450	Street/Curb and Gutter (2 3)		Minimal amount of overflow exiting the system on the street from 1697 Bel Air to 1687 Bel Air. Vactor truck was vacuuming overflow until line was unblocked.	Y	33.85895	-117.53487	33.8597	-117.53515					02/03/2024 21:15	Visual observation of overflow exiting the system, estimated start time, as well as the total amount collected in the truck were used to calculate the estimated total spill volume. Truck had collected approximately 450 gallons while overflow was exiting the system and overflow recovered from the street. 	Estimated start time was based on the initial call from the public to the first responder. Estimated end time was based on the time the line was unblocked.	Root Intrusion		Gravity Mainline		Vitrified Clay		35	Minimal impact of spill. Spill extended onto the street and was captured and recovered on site. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Upon notification, second responder was called, sandbags were setup, and a small vactor truck was called to vacuum the spill until larger truck arrived. Spill on street was contained and recovered as larger truck vacuumed additional overflow in the manhole until the line was unblocked. 	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		Corrective action was to inspect the sewer by CCTV and to clean the sewer main to remove the roots causing the blockage.  It is anticipated a liner will be added, however if not approved, the line will be cleaned annually. 		02/03/2024 22:17	According to CCTV inspection, spill was due to root intrusion of the line. Line was cleared of roots and the line was unblocked. 		No, ongoing investigation. Spill was due to root intrusion. 	02/03/2024 22:17														NA	NA	It is anticipated a liner will be added, however if not approved, the line will be cleaned annually.	Clean sewer main to remove roots.	Line was inspected by CCTV.	NA	Attached.	No current changes to spill response activities.	No, ongoing investigation. Spill was due to root intrusion. 	
2	2SSO10212	Active	Vallejo Sfcd CS	Vallejo Flood & Wastewater District (formerly Vallejo San & Flood Control District)	893650	1.1	Certified	Justin Keating	Director of Field Operations		27-FEB-24	27-FEB-24	Monthly Category 3 Spill	525 Oregon 	01/23/2024 12:57	01/23/2024 13:05	01/23/2024 12:30				Sewer manhole spilled to curb and gutter.	38.11789	-122.24899	Manhole			372	Spill originated from sanitary sewer manhole, flowed down the street in the curb and gutter.	N						372	Street/Curb and Gutter (2 3)		Spill originated from sanitary sewer manhole, flowed nearly 300' down the street in the curb and gutter.	Y	38.11805	-122.25045							01/23/2024 13:23	Measured volume. L x W x D, Based on average puddle depth.	Interviewed reporting party. This was an individual walking by. This was the first time it was noticed. They reported it immediately. Staff estimated the spread of the spill would need roughly 30 minutes to cover the distance of the spill. Spill ended at 13:23 when District staff cleared blockage in mainline. 	Pipe Structural Problem/Failure - Controls		Gravity Mainline		Vitrified Clay		61	Flowed from manhole in street into curb and gutter.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Immediately dispatched vacuum truck to address spill destination in curb and gutter while separate hydro-jet machine cleared blockage.	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		CCTV inspection on 1-24-2024 found large pipe offset in mainline at the same location the hydro-jet crew cleared the blockage. FOG also found during inspection, though not the cause of blockage. Mainline spot repair completed on 1-29-2024. Mainline had full follow-up cleaning on 1-30-2024.		01/23/2024 14:35	CCTV inspection on 1-24-2024 found offset in mainline at the same location the hydro-jet crew cleared the blockage. Mainline spot repair completed on 1-29-2024. Mainline had full follow-up cleaning on 1-30-2024. Grease discharges also investigated from hospital connected to mainline. District staff to initiate FOG inspection schedule.		No	01/24/2024 16:30														NA	Mainline spot repair completed on 1-29-2024. Existing mainline cleaning schedule remains. Grease discharges also investigated from hospital connected to mainline.	No	No	CCTV inspection on 1-24-2024. Mainline spot repair completed on 1-29-2024. 	NA	NA	None	No	
4	4SSO11365	Active	Unincorporated County Area CSMD South/County Sanitation District CS	Los Angeles Cnty DPW	893653	1.2	Certified	Robert Swartz	Sr. CE	27-FEB-24	14-MAR-24	14-MAR-24	Category 1 Spill	1853-0020 (2130 N Windsor Avenue, Altadena - Unincorporated County Area)	02/23/2024 14:45	02/23/2024 15:45	02/23/2024 14:27	02/23/2024 16:20	24-1143		CSMD Map Sheet No. 1853 MMS No. 8664728 Manhole No. 20 was overflowing. 	34.18313	118.16853	Manhole	Manhole No. 20		3000	Sewage was overflowing from manhole no. 20 onto the street.  The spill entered a storm drain in front of 2122 North Windsor Avenue.	Y	The spill entered a storm drain in front of 2122 North Windsor Avenue.	0	0	The spill entered a storm drain in front of 2122 North Windsor Avenue, which leads to Caltrans drain, Waters of the US - Streams, Arroyo Seco Channel - Devils Gate Dam to LA River, and Los Angeles River.	3000	0	Drainage Conveyance System that discharges to surface water		The spill entered a storm drain in front of 2122 North Windsor Avenue, which leads to Caltrans drain, Waters of the US - Streams, Arroyo Seco Channel - Devils Gate Dam to LA River, and Los Angeles River.	Y	34.18187	118.1688							02/23/2024 16:00	CWEA SSCSC Manhole Gauge.	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops. 	Debris-Rags; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		67	No impact.	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow		Upon arrival, the Manhole No. 20 was overflowing. Hydro equipment was used to break down the mainline blockage caused by heavy grease and rags. The affected area was washed down, and all required agencies were notified. 	Other (specify below)	Will inspect sewer using CCTV to determine if further actions are needed. 	Recommendations will be given after the mainline is inspected via CCTV.	N/A	02/23/2024 17:00	Will inspect sewer using CCTV to determine if further actions are needed. 	Y	Will inspect sewer using CCTV to determine if further actions are needed.	05/23/2024 10:48	Los Angeles River	Other (specify below)	River	Los Angeles River	No impacts	Other (specify below)	No Impacts	N/A	0	N	N											Will inspect sewer using CCTV to determine if further actions are needed.	
9	9SSO10660	Active	City of Vista CS	Vista City (aka City of Vista)	893654	1.3	Certified	kuna muthusamy	director public works	27-FEB-24	28-FEB-24	28-FEB-24	Category 1 Spill	Vista Conservancy Walking Trail	02/26/2024 15:00	02/26/2024 15:30	02/26/2024 15:00	02/26/2024 15:39	24-1186		33�12'30.0 N 117�13'48.8 W   Photographs will be attached.	33.20835	-117.2302	Gravity Mainline	At approx. 3:00 PM 02/26/2024, PW staff was doing routine sewer maintenance on the sewer line manhole located at the north cul-de-sac on Capri Drive. At that time, they observed a small crack in an 8� vitreous clay pipe (the pipe was encased in concrete) running across the creek running from the manhole located on Capri to the manhole on Vale Terrace to the north.  The pipe failed during routine maintenance as a result of the creek bank being undermined by surface erosion. Two vactor trucks were dispatched and contained the spill. It is approximated that 360 gallons of sewage discharged to the creek between discovery of the break and containment. Emergency repairs (temporary) were made to the line last night and the line is currently functional, and our engineering team is assessing permanent repairs.   PW has posted notifications and sampled the creek for analysis by Encina Wastewater Authority.   		360	Spill leaked out of broken pipe into natural creek. Photographs will be attached.	Y	Natural creek. Photographs will be attached.	0	360	Broken sewer main.	360	0	Surface Water		Spill starting point: 33�12'30.0 N 117�13'48.8 W Traveled down natural creek and diluted with distance. 	Y	33.20833	-117.23017							02/26/2024 15:30	Volume estimated based on flow velocity and spill time. 	Spill started when pipe broke open during routine cleaning approximately 1500hrs and stopped when vactor crews arrived to capture flow at 1530hrs.	Pipe Structural Problem/Failure - Controls	The pipe failed during routine maintenance as a result of the creek bank being undermined by surface erosion.	Gravity Mainline		Vitrified Clay		46	360 gallons escaped into natural watershed creek and continued traveling to unknown point. No visible impact on wildlife or plant life. 	N	Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow	Effects of spill were mitigated by vactor trucks capturing flow upstream. 	Two vactor trucks were dispatched and contained the spill. It is approximated that 360 gallons of sewage discharged to the creek between discovery of the break and containment. Emergency repairs (temporary) were made to the line last night and the line is currently functional, and our engineering team is assessing permanent repairs. PW has posted notifications and sampled the creek for analysis by Encina Wastewater Authority.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		Despite previously being rated at good condition, pipe was reassigned to high risk and will be inspected via CCTV at a higher frequency. Pipe will be encased in ductile iron and lined inside via CIPP.	Inspection schedule change will occur Immediately. Work is currently in progress to reinforce pipe.	02/26/2024 22:00	At approx. 3:00 PM 02/26/2024, PW staff was doing routine sewer maintenance on the sewer line manhole located at the north cul-de-sac on Capri Drive. At that time, they observed a small crack in an 8� vitreous clay pipe (the pipe was encased in concrete) running across the creek running from the manhole located on Capri to the manhole on Vale Terrace to the north. The pipe failed during routine maintenance as a result of the creek bank being undermined by surface erosion.	N			Buena Vista Creek	Other (specify below)	Creek.	Natural creek running through urban north Vista. 	None visible. 	Other (specify below)	None.	City of Vista	0	N	Y	Upstream sample taken 20ft from spill location 33�12'30.5 N 117�13'47.4 W  Downstream sample taken (Wildwood Park) 33�12'20.4 N 117�14'08.4 W  Furthest downstream sample (Creek walk) 33�11'55.5 N 117�14'43.0 W	Water samples were tested for fecal coliform and enterococcus.										
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	893660	1.3	Certified	John J. Hough	San Dist. Superintendent	27-FEB-24	08-MAR-24	08-MAR-24	Category 1 Spill	339482	02/24/2024 19:14	02/24/2024 20:00	02/24/2024 15:30		-		See Attached Spill map with Photos.	38.6663	-121.3031	Lateral Clean Out (Public)			88	See Attached Spill Map with Photos	Y	See Attached Spill map with Photos.	29	0	See Attached Spill map with Photos.	46	85	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See attached Spill Map with Photos.	Y	38.6663	-121.3031	38.66628	-121.3041	38.66693	-121.30416	38.66851	-121.30853	02/24/2024 20:00	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Root Intrusion		Lower Lateral		Vitrified Clay		57	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified County of Sacramento Department of Water Resources via County Central	See Attached Description of Spill Event	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Planned re-inspection of sewer	SacSewer inspected the mainline with CCTV on February 24, 2024. Based on the findings, SacSewer will re-inspect the lower lateral in 12 months for further evaluation.	Target finish date for re-inspection is February 28, 2025.	02/25/2024 08:00	See Attached Description of Spill Event	N			Coyle Creek	Stream/Creek		Earthen creek with light flow and heavy vegetation and fenced through backyard easements.	No observed impacts to aquatic life	Other (specify below)	No public access impact	N/A	0	N	N												
2	2SSO10187	Active	Santa Clara City CS	Santa Clara City	893665	1.3	Certified	Garrett M Brown	Superintendent		26-MAR-24	26-MAR-24	Monthly Category 3 Spill	401 California Ave Santa Clara Ca 95050	02/26/2024 13:58	02/26/2024 14:18	02/26/2024 13:58				See Attachment- SSO Report 	37.33966	-121.95305	Manhole			155	See Attachments	Y	See Attachments	155				155	Drainage Conveyance System; Street/Curb and Gutter (2 3)		See Attachmentssee	Y	37.33964	-121.953	37.3408	-121.95366	37.34081	-121.95378	37.34008	-121.95571	02/26/2024 14:18	See Attachment- SSO Report	See Attachment -SSO report	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		74	Gutter and Storm Conveyance system, which was contained and cleaned up  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		At the time of arrival spill from Mainline stoppage had stopped flowing but the manhole was still surcharged to the lid. We jetted from Manhole 26-35 and the blockage was approximately 78 ft up stream towards 26-39 where the spill originated from.   The blockage was F.O.G. and flushable wipes.   A Crew proceeded to set up Vaccon for clean up on California Ave while the Catch basin was stopped for no flow into storm anymore. The crew washed down and vacuum the gutter to the corner of California Ave and Bellomy St. Another crew set up on Saratoga Ave near the start of Bellomy St.  at storm manhole 26-19.    The crew stayed set up just in case the sewer showed up before the wash down was completed on California Ave. Once the wash down was completed the storm line was flushed with water and the Vaccon captured the Sewer and returned it to the sewer conveyance  system  	Enforcement action against Fats, Oil, and Grease (FOG) source		Add to monthly inspections, Have Compliance send out flyers about FOG and Flushable wipes		02/26/2024 16:46	FOG was the culprit of the spill from Residents 		None at this time other than monthly inspections	02/26/2024 14:08														none	Monthly inspections and Jet as needed	monthly inspections	no	no	no	it will be added to automated Monthly inspections	none	None at this time other than monthly inspections	
2	2SSO10170	Active	Richmond City CS	Richmond City	893666	1.1	Certified	MARY PHELPS	PROJECT MANAGER I		28-FEB-24	28-FEB-24	Monthly Category 3 Spill	341 South 7th 	01/22/2024 08:00	01/22/2024 08:30	01/22/2024 07:30				Private lateral see photos 	37.92716	-122.3632	Lateral Clean Out (Private)			50	In residence see photos 	N						50	Building or Structure		On property and inside residence 	Y	37.92716	-122.3632							01/22/2024 09:00	volume based off observations and operator training. 	visual observations and field investigations/interviews of witnesses 	Debris-General		Gravity Mainline		Ductile Iron		35	Spill contained on private property and mitigated according to our plans and procedures. 	N	Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow		Contained all of spill. Restored flow to main, and outsourced interior of property cleanup to restoration management. 	Other (specify below)	Provided outreach to contributing properties of sewer main on FOG and related BMP's	NA 		01/29/2024 17:00	No obvious signs of specific blockage of main but various sources of debris noted. 		Spill response timeframe includes restoration of property. 	01/22/2024 10:00														NA	NA	NA	NA	NA	NA	NA	NA	Spill response timeframe includes restoration of property. 	
2	2SSO10167	Active	Pleasanton City CS	Pleasanton City	893674	1.4	Certified	Tamara Baptista	Assistant Director Of Public Works	28-FEB-24	14-MAR-24	14-MAR-24	Category 2 Spill	1054 Santa rita rd	02/25/2024 16:47	02/25/2024 17:11	02/25/2024 16:17	02/28/2024 09:40	24-1218		Manhole in dirt area next to railroad tracks. Spill presented out of two pickholes on manhole cover. See attached photos Unable to make contact with resident who contacted PD to help determine start time. Based off of lack of solids and small impact area we added .5 hrs for a 16:17 start time	37.66684	-121.87315	Manhole	NA	NA	1775	Effluent contained in dirt area adjacent to railroad tracks. See attached photos	N	NA					1775	Unpaved Surface		Spill was contained within dirt area adjacent to railroad tracks. Spill did not reach curb and gutter nor any conveyance system.	Y	37.66686	-121.87312							02/25/2024 23:02	Spill volume estimation was based off of pick hole size calculation and time of event. All standing effluent in dirt area was recovered as well as most of wet soil. 	Was not able to make contact with reporting party, however due to small volume and lack of solids present at time of Operator arrival we added .5 hr. to start time. End time was determined by the time the plug was relieved at 23:02	Debris-Rags; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline; Manhole		Vitrified Clay		70	As stated before, the spill was contained within a dirt area adjacent to RR tracks. Spill had no impact to waterways or any conveyance systems. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Standby Operator called in extra personnel to assist with spill. Crews jetted lines to relieve plug. As stated above, spill was contained within a dirt are not reaching the street or any conveyance system. Dirt berm and sandbags were put in place as a precaution if effluent were to exceed area capacity and flow into curb and gutter. All effluent was was cleaned by our Vac truck and returned to sanitary sewer system	Adjusted Schedule/Method of Preventive Maintenance; Plan Rehabilitation or Replacement of Sewer		Increased frequency of cleaning. Started process of design/R&R with our Engineering team.	Schedule is not in place.	02/25/2024 23:02	Spill was caused by excessive rags and wipes as well as FOG. Design of system in the area of spill is also very old with a few direction changes causing slowdown of flow.	N												N													
5S	5SSO10901	Active	City of Sacramento Utilities CS	Sacramento City	893678	1.1	Certified	Kevin Guerra	Superintendent		28-FEB-24	28-FEB-24	Monthly Category 3 Spill	41 Coral Gables Ct.	01/21/2024 13:00	01/21/2024 13:33	01/21/2024 13:00				The spill appearance point was at a manhole at the end of a Coral Gables Court.	38.48221	-121.47637	Manhole			148	The spill left the manhole in the street and ran to the gutter pan to the South. It ended at the drain inlet to the west that had construction sift bags damming the spill.	N		0				148	Paved Surface; Street/Curb and Gutter (2 3)		The spill ended in the gutter pan east of the appearance point, where it had been blocked by construction sift bags.	Y	38.48221	-121.47561							01/21/2024 13:45	The spill was trapped on the ground and in the gutter pan. We measured the spill length width and depth and used our Spill calculator to get the estimated spill total.	We used the caller statements to get the start time, they told us that they reported the spill as soon as it had started. And our responder documented the time that they unplugged the sewer main, ending the spill.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		62	There was no impacts to the service or the surrounding area from this spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		The spill had been trapped by construction sift bags in the gutter pan. The responder to ensure it didn't get into the drainage system inserted a cone inside of the drain piping. Once the main was unplugged a Jet/Vacuum truck was called to assist with the cleanup. The spill area was washed down to the vehicle where it was all captured and returned to the sewer system,	Inspected Sewer Using CCTV to Determine Cause		We will inspect the main in three months, the main had just been cleaned and does not have a history of grease issues. We will inspect the main to ensure that problem has been resolved and it isn't in need of more frequent maintenance.		01/21/2024 14:30	This main has not had any previous issues and was just cleaned 5 months prior. The main did not show any signs of grease issues after the plug was removed. We will verify that this main is okay to stay on the current schedule by inspecting it again in three months. If we find a problem we will perform outreach at the nearby complexes, and increase the maintenance schedule.		Will inspect main in six months to see if this is a reoccurring issue needing a different maintenance schedule.	01/25/2024 09:49														N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	Will inspect main in six months to see if this is a reoccurring issue needing a different maintenance schedule.	
3	3SSO10314	Active	Salinas City CS	Salinas City	893681	1.2	Certified	Gary Gabriel	Wastewater Manager		28-FEB-24	28-FEB-24	Monthly Category 3 Spill	253 Tapadero Street	01/30/2024 12:04	01/30/2024 12:12	01/30/2024 11:10				Spill originated from City owned manhole in street in front of 253 Tapadero Street. *See photo Attachment Photo of manhole overflow to curb and gutter	36.7005	-121.64985	Manhole			378	Spill originated from City manhole located at 253 Tapadero Street where it flowed to curb area and moved down street towards E. Laurel Drive. *See Photo Attachments	N						378	Paved Surface; Street/Curb and Gutter (2 3)		Spill originated from City manhole in front of 253 Tapadero Street and moved down the curb and gutter to E. Laurel Drive where it was dammed up and captured with a City Vac-con vacuum Truck. *See Attachment	Y	36.69899	-121.65021							01/30/2024 12:21	Area/Volume Method and Duration and Flow Rate Comparison Method. *See Attachment showing calculations.	Date/Time Determination Worksheet. And eye witness statement *See Attachment Date/Time Determination	Debris-Rags; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline; Manhole		Vitrified Clay		60	Spill impacted paved surface area and curb and gutter area. * See Attachment Photo Spill Impacted paved surface and curb area	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		City Staff responded to site with multiple trucks. A Vac-con vacuum truck to contain and vacuum discharge and a hydro jetter to remove the plug in mainline and washdown road surface. Staff initiated spill containment and cleanup procedures. Plug was removed from system staff washed down street and curb and gutter to awaiting Vac-con truck capturing all discharge water and wash water that was disposed back into the sewer system.  * See Attachment Sanitary Sewer Spill Field Report and Photos of Response activities. 	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Spill location of 253 Tapadero Street was added to the City of Salinas Sewer Manhole Service Maintenance Checks List. CCTV inspection of mainline was conducted identifying FOG buildup.  *See Attachment Sewer Manhole Service Maintenance Checks		01/30/2024 13:01	City interviewed caller to determine start time of spill along with a nearby neighbor. Staff conducted CCTV inspection once spill mitigation was completed. CCTV identified FOG buildup within system at location of spill. FOG was identified as the cause of the overflow from manhole. 		No ongoing investigation efforts.	02/28/2024 13:58														None	Increased manhole inspections to identify sluggish flow caused by FOG buildup and debris issues. 	Added to Checklist and increased line cleaning frequency.	None at this time	CCTV inspection performed to identify any issues. CCTV identified FOG buildup at location.	None at this time	None 	None at this time. City follows the City of Salinas Spill Emergency Reponses Plan (SERP).	No ongoing investigation efforts.	
2	2SSO10142	Active	Town Of Hillsborough CS	Town Of Hillsborough	893684	1.3	Certified	Rick-Gabriel Pina	Superintendent 		02-APR-24	02-APR-24	Monthly Category 3 Spill	540 Laurent RD	02/27/2024 09:22	02/27/2024 09:40	02/27/2024 09:07				Spill out of Manhole in resident yard. 	37.55842	-122.3694	Manhole			50	spill around manhole and plants.   *** after review of measurements, 6 gallons only. Staff used the incorrect math, Cat 4***	N						50	Unpaved Surface		around manhole and plants area	Y	37.55842	-122.3694							02/27/2024 10:16	Measure area and volume	Measured surface and volume	Debris-Rags		Manhole		Other (specify below)	Liner	20	spilled in plant area in yard	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		spill was contained in plant area, restored flow and most of spill went into the manhole. Cleaned up area of rags and removed dirt where spill occurred. 	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance		Adjust Schedule in area		02/27/2024 10:16	Heavy volume of rags in manhole and main		we will be CCTV main 	02/29/2024 10:00														n/a	we will adjust schedule for this section of main	we will adjust to our schedule for this section of main	not at the moment	we are putting it on our list for repairs	on list	yes	we will be training our staff on quicker response time. 	we will be CCTV main 	
5S	5SSO11084	Active	White Slough Water Poll Con Pu CS	Lodi City	893687	1.2	Certified	Andrew Richle	Utilities Superintendent 		29-FEB-24	29-FEB-24	Monthly Category 3 Spill	841 N Sacramento St. Lodi CA	01/04/2024 15:53	01/04/2024 16:30	01/04/2024 13:13				Pictures of pre and post spill. Spill originated at MH I1924. 	38.14475	-121.27219	Manhole			386	Boundary of spill consisted of 30'x30' surface area. Reached storm drain but did not reach storm main. Spill was contained to storm lateral. 	Y	Private storm drain and private storm lateral.	133				386	Drainage Conveyance System that discharges to surface water; Paved Surface		Boundary of spill consisted of 30'x30' surface area. Reached storm drain but did not reach storm main. Spill was contained to storm lateral. 										01/04/2024 17:56	Estimated spill volume by pick hole flow. Intermittent at 1/4-inch.  With a spill rate of 1.4 gpm over 4.6 hours. 	Estimated start time by subtracting 4.6 hours from time flow was restored.  	Debris-General		Gravity Mainline		Concrete		40	Spill was contained to private storm lateral. No impact to surface water or damage to property. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Drain mat was deployed upon arrival. Vac-con was used to clean spill surface, storm drain and storm lateral. Flow was restored after blockage was removed by high pressure jetting and vacuuming debris. All sewer spill was captured and returned to sewer system. 	Other (specify below)	Public outreach	Line will remain on same cleaning schedule. Staff will monitor debris and adjust schedule if needed. 		01/04/2024 16:16	Staff reviewed cause of spill. Staff to monitor and determine if more frequent cleaning is necessary or if debris build up was an abnormal occurrence.  		N/A	01/08/2024 12:02														N/A	N/A	Not at this time. 	Not at this time. 	N/A	N/A	N/A	n/A	N/A	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	893694	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		02-APR-24	02-APR-24	Monthly Category 3 Spill	5221 North Calenda Drive	02/28/2024 18:30	02/28/2024 20:00	02/28/2024 18:30				On Wednesday, February 28, 2024, at 6:30 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 5221 North Calenda Drive (559-F3). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 10:15 PM. The cause of the blockage was attributed to root intrusion.  All necessary clean-up was then performed.  	34.165055	118.636623	Manhole	Maintenance Hole.	None.	647	None. 	N	None.	0				0	Other (specify below)	The entire back up amount soaked into the ground.	34.165055       118.636623	Y	34.165055	118.636623							02/28/2024 22:15	Spill flowrate and volume determination based on flowout pickhole or opening 	Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening2inches Flowrate per pickole/opening (gpm)3gpm # of pickholes/openings1 Total flowrate (gpm)3gpm Duration of spill (minutes)225minutes Total flow (gallons)647gallons 	Root Intrusion		Gravity Mainline		Vitrified Clay		60	It was estimated that approximately 647 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.	N	Cleaned Up (specify below); Restored Flow		On Wednesday, February 28, 2024, at 6:30 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 5221 North Calenda Drive (559-F3). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 10:15 PM. The cause of the blockage was attributed to root intrusion.  All necessary clean-up was then performed.    It was estimated that approximately 647 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground. 	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		CCTV Revealed Some Defects That Will Be Addressed Through Planned Rehab By A City Contractor.		02/28/2024 22:15	On Wednesday, February 28, 2024, at 6:30 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 5221 North Calenda Drive (559-F3). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 10:15 PM. The cause of the blockage was attributed to root intrusion.  All necessary clean-up was then performed.  		CCTV Revealed Some Defects That Will Be Addressed Through Planned Rehab By A City Contractor. And placed On Semi-Annual Maintenance Schedule.	04/02/2024 22:15														None At This Time. 	CCTV Revealed Some Defects That Will Be Addressed Through Planned Rehab By A City Contractor. And placed On Semi-Annual Maintenance Schedule.	CCTV Revealed Some Defects That Will Be Addressed Through Planned Rehab By A City Contractor. And placed On Semi-Annual Maintenance Schedule.	CCTV Revealed Some Defects That Will Be Addressed Through Planned Rehab By A City Contractor. And placed On Semi-Annual Maintenance Schedule.	CCTV Revealed Some Defects That Will Be Addressed Through Planned Rehab By A City Contractor. And placed On Semi-Annual Maintenance Schedule.	CCTV Revealed Some Defects That Will Be Addressed Through Planned Rehab By A City Contractor. And placed On Semi-Annual Maintenance Schedule.	CCTV Revealed Some Defects That Will Be Addressed Through Planned Rehab By A City Contractor. And placed On Semi-Annual Maintenance Schedule.	On Wednesday, February 28, 2024, at 6:30 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 5221 North Calenda Drive (559-F3). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 10:15 PM. The cause of the blockage was attributed to root intrusion.  All necessary clean-up was then performed.    It was estimated that approximately 647 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground. 	CCTV Revealed Some Defects That Will Be Addressed Through Planned Rehab By A City Contractor. And placed On Semi-Annual Maintenance Schedule.	
5S	5SSO11001	Active	Modesto CS	Modesto City	893698	1.2	Certified	Robert Englent	Wastewater Collection System Superintendent		28-MAR-24	28-MAR-24	Monthly Category 3 Spill	921 College Ave.	02/17/2024 12:05	02/17/2024 13:15	02/17/2024 12:05				The spill flowed out of TMHSS011091 from the pick hole of a 6 inch lamp hole lid located in the alley behind 921 College Ave. 	37.65602	-121.00811	Manhole			254	The sewage was contained to an area in the gutter that was sandbagged, puddled in the alley in 4 different areas, and some in the dirt area on the edges of the alley, and the front lawn of  1119 Princeton Ave.	Y	The gutter pan on Princeton Ave. at the driveway to the alley.	36				178	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		Puddled in 4 areas in the alley behind 921 College Ave. and on the front lawn at 1119 Princeton Ave. Also, 61 feet of gutter pan at the entrance to the alley on Princeton Ave.	Y	37.65609	-121.00809	37.656	-121.00823	37.65594	-121.00817	37.65602	-121.00818	02/17/2024 14:54	Pick hole estimation and contained volume estimation. See Attachment	The spill start time used was when 921 College Ave. called about their home having a sewer back-up. The spill ended when the cleaning crew broke the stoppage with a jet rodder.	Other (specify below); Root Intrusion	A poorly installed break-in lateral connection allowed roots to intrude.	Gravity Mainline		Vitrified Clay		74	The spill was partially recovered. 76 gallons was discharged to land, including the lawn at 1119 Princeton Ave. and a dirt area in the alley. See Attachment 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Sandbags were placed in the gutter to keep the spill from reaching any storm assets. The cleaning crew broke the stoppage with a jet rodder and then proceeded to wash down the alley and vacuum the sewer. The crew also washed and vacuumed 61 ft. of gutter.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		Line segment SS008369 was televised and the defective break-in lateral connection to 933 College Ave. was marked for repair. The USA has been called in and the repair is scheduled for repair on Monday March 4th, 2024.  The PM cleaning schedule has been adjusted from 3 years to 6 months. A root treatment PM has been created.		02/17/2024 16:14	CCTV follow-up on 02/21/2024 revealed heavy tap roots intruding into the main line from a defective break-in lateral connection with broken pipe for 933 College Ave. 		Televised line segment on 2-20-24 and 2-21-24	02/21/2024 15:04														N/A	Repair the defect that caused the spill. Adjust the PM cleaning schedule. Add PM for root treatment.	Cleaning schedule has been adjusted from 3 years to 6 months.	Spot repair of defective break-in lateral connection from 933 College Ave. 	Post CCTV when repair is completed.	N/A	See Attachment	N/A	Televised line segment on 2-20-24 and 2-21-24	
5S	5SSO11084	Active	White Slough Water Poll Con Pu CS	Lodi City	893708	1.2	Certified	Andrew Richle	Utilities Superintendent 		29-FEB-24	29-FEB-24	Monthly Category 3 Spill	315 S. Cherokee 	01/28/2024 10:21	01/28/2024 11:14	01/28/2024 09:15				Spill originated at MH M2119	38.13049	-121.26077	Manhole			66	Spill left manhole 20' on to driveway down curb 80' terminating at curb. See attachment. 	N						66	Street/Curb and Gutter (2 3)		Spill destination was approximately 100' from MH stopping in gutter. See attached photos. 										01/28/2024 11:30	Used gutter volume calculation. Broke gutter volume into two sections based on a portion of the gutter being offset and holding more water. 	Since the flow did not reach catch basin the total volume can assume to be captured in the gutter. The flow was intermittent. Assuming 1 gpm flow at 66 gallons, the estimated start was assumed at 9:15 am. Approximately one hour have the SSO was reported. 	Debris-General		Gravity Mainline		Concrete		50	Spill was contained. No threat to waterway of damage to property. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Spill was contained. Blockage was removed by high pressure jetting and vacuum. All portion of the spill was cleaned and returned to system. 	Adjusted Schedule/Method of Preventive Maintenance		Adjust cleaning schedule. 		01/28/2024 14:14	Spill was caused by debris in main. Main was cleaned and blockage was eliminated. Flow was restored. 		N/A	01/28/2024 11:30														N/A	N/A	Increased cleaning frequency. 	N/A	N/A	N/A 	N/A	N/A	N/A	
2	2SSO10095	Active	Benicia City CS	Benicia City	893710	1.2	Certified	John Gant Jr	Field Utilities and Streets Supervisor	04-MAR-24	09-APR-24	09-APR-24	Category 1 Spill	Chelsea Hills Dr	02/28/2024 10:00	02/28/2024 10:10	02/28/2024 09:30	02/28/2024 12:05	24-1222		Spill originated from a hole in a damaged sewer main and showed itself in the street in the separation between the asphalt and gutter. See Attachment.	38.07469	-122.15864	Force Main			500	Spill ran down the gutter line and reached drain inlet on the southeast corner of Chelsea Hills.	Y	Storm drain inlet. See Attachment.	0	500	Outfall	500	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		Spill reached paved surface and flowed down curb and gutter to drainage inlet.	Y	38.07523	-122.15949	38.07454	-122.15837					02/28/2024 13:00	Calculated the frequency that the sewer lift station kicked on, combined with how long the overflow took place, and how much we captured in the vacuum truck during that time.	Estimated based on the time notified  of the SSO, and the time we arrived on the scene and began capturing it with vacuum truck.	Other (specify below)	Damaged force main	Force Main		Other (specify below)	Asbestos Cement pipe lined with plastic	30	NA	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Returned Portion of Spill to Sanitary Sewer System		Set up hydrojet vacuum truck at drain inlet and began capturing sso. washed down street, curb, and gutter, and captured that at drain inlet as well.	Repaired Facilities or Replaced Defect		Repaired the damaged force main and will follow up with inspection of sewer main.	Completed repair of force main on 2/28/24	02/28/2024 21:00	There was a hole that developed on the bottom of the force main.	N			Sulphur Springs Creek	Other (specify below)	Creek	Drainage creek	NA	Other (specify below)	NA	NA	0	N	N												
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	893285	2.1	Certified	Daniel Whitlock	Manager		01-MAR-24	01-MAR-24	Monthly Category 3 Spill	1925 Evans street	02/01/2024 06:20	02/01/2024 09:15	01/31/2024 15:30				Catch Basin overflowed due to surcharged main sewer during rain event.	37.74639	-122.39451	Combined Sewer Drain Inlet. (Combined Collection System Only); Other (specify below)	Catch Basin- N-65088		119	See Attachment's	N						119	Paved Surface; Street/Curb and Gutter (2 3)		Upon arrival staff believed it was just a flooded catch basin and began sucking it down. they then realized it was filling back up through the culvert. Determining the main sewer was surcharged.	N									02/01/2024 09:30	Volume by Area - See attachment for total.  9 ft x 9 ft x 0.785 x 0.5 ft x7.48 x 0.5%wet = 118.9 gallons  Total = 119 gallons	Resident at 1925 Evans St. said the spill started between 15:00 and 16:00.  Judging by the rainfall we determined the spill started at 15:30.	Surcharged Pipe (Combined Collection System Only)		Other (specify below)	There was no failure. There was a surge charge in main sewer during rain event.	Vitrified Clay	Asset P-103943	79	Spill was contained in low lying area around the catch basin (see attachment). Staff believed it was just a flooded catch basin upon arrival, that is why there are no photos of flooded catch basin.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Returned All Spill to Sanitary Sewer System		Spill was contained in low lying area around the catch basin (see attachment). Staff believed it was just a flooded catch basin upon arrival, that is why there are no photos of flooded catch basin. Area was sucked down and cleaned when water receded. 	Other (specify below)	No Correction measure could prevent surcharge.	No Correction measure could prevent surcharge.		02/01/2024 12:12	Heavy rain caused pipe to surcharge.		No	02/01/2024 12:14														No Correction measure could prevent surcharge.	No Correction measure could prevent surcharge.	N/A No Correction measure could prevent surcharge.	No Correction measure could prevent surcharge.	No Correction measure could prevent surcharge.	N/A	N/A	Staff cleaned area and recovered spoils.	No	
					893783	1.3	Certified	Brian McAlister	Director of Facilities Services	01-MAR-24	06-MAR-24	06-MAR-24	Category 2 Spill	Cuesta College Highway 1	02/28/2024 11:43	02/28/2024 11:35	02/28/2024 11:30		-		Manhole near corner of 5300 (GPS 35.328839,-120.740363) had blockage in mainline causing manhole cover to leak sewer water.  A cleanout (GPS 35.329364,-120.741121) on the lateral line also spilled sewage water out of the cleanout lid.	35.328839	120.740363	Gravity Mainline; Lateral Clean Out (Private); Manhole			14240	Manhole on the corner of 5300 had sewer water coming out of the access hole where you remove cover and sewer water sitting around on the asphalt and lawn. This is how we estimated the volume of sewer water spilled. The other photo is a cleanout for the lateral line that feeds into the mainline that had blockage. We did have some sewage water that made it to the storm drain. College brought in outside contractor to jet and clean line of the storm drain and recover the water approx. 4500 gallons they used and properly disposed it. Cuesta was quick to put up collection barriers and cover the drain to prevent any further sewer water making it to storm drains.  Staff was quick to respond with setting up barriers to prevent access near the spill.  Staff also sanitized asphalt areas four times to prevent contamination to students and staff.	Y	Storm drain was jetted and cleaned. Potential sewer water was collected approx. 4500 gallons and properly disposed of by outside contractor.	4500	0			4500	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		Destination was storm drain manhole in parking lot 5.  35.328129, -120.742040	Y	35.328129	-120.74204							02/28/2024 13:06	Wallace group through our annual training has provided estimation sheets and calculation sheets which helped estimate the volume of sewer water spilled.	Reporting person called over our two way radio system at 11:30 a.m. notifying maintenance supervisor of the spill. The end spill was calculated when sewer water was receding back into the sewer.	Debris from Lateral; Debris-wipes/Non-disposables; Root Intrusion		Gravity Mainline; Manhole; Upper Lateral		Vitrified Clay		50	Area was quickly contained to prevent further impact to the environment.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Storm drain covered and barricaded. Safety cones set up for perimeters to safe off area from access. Mainline jetted to remove blockage. Storm drain was cleaned via outside contractor. Area sanitized with a diluted bleach solution four times. Barriers left up for 24 hours. 	Adjusted Schedule/Method of Preventive Maintenance		Weekly monitoring of the mainline that was affected. The college is looking at CCTV inspections and possible lining of pipe.	Coordinating with contractors.	02/29/2024 10:20	Root intrusion to main sewer line between building 5300 and 1300. Pipes are approx. 50+ years old. 	N												N													
3	3SSO10330	Active	Santa Ynez C.S.D. CS	Santa Ynez CSD	893785	1.1	Certified	Craig Kapner	Operations Supervisor		01-MAR-24	01-MAR-24	Category 1 Spill	Chumash Casino & Resort	12/26/2023 22:30	12/26/2023 22:45	02/26/2024 22:20		-		At 10:30PM, December 26, 2023, the SYCSD was notified by Chumash Casino & Resort staff that a wastewater spill was in progress at the Chumash Casino & Resort's Creekwalk pump station.  This pump station is located on the North side of the Sanja Cota creek, where the creek goes underneath the Casino.  Approximately 50 gallons of wastetwater flowed from the pump station.  SYCSD staff arrived at 10:45PM and stopped the spill.  The pump station area, and the employee walkway was disinfected with two gallons of bleach and washed off.  There was no damage to any persons, property of structures (see pictures).	34.60907	-120.0865	Pump Station	None	None	50	The spill occurred from the pump station's wet-well, spilling out from the wet-well's manhole cover.  The spill flowed onto the employees walkway; covering an area three feet in width, 1/4  in depth.  From here the wastewater spilled onto the the top of the dirt embankment (see pictures).		The spill occurred from the pump station's wet-well, spilling out from the wet-well's manhole cover.  The spill flowed onto the employees walkway; covering an area three feet in width, 1/4  in depth.  From here the wastewater spilled onto the the top of the dirt embankment of the Sanja Cota Creek and down into the dry creek bed (see pictures).	0	0	The spill occurred from the pump station's wet-well, spilling out from the wet-well's manhole cover.  The spill flowed onto the employees walkway; covering an area three feet in width, 1/4  in depth.  From here the wastewater spilled onto the the top of the dirt embankment of the Sanja Cota Creek and down into the dry creek bed (see pictures).	0	0	Other (specify below)	Sanja Cota Creek bed, not running, dry.	The spill occurred from the pump station's wet-well, spilling out from the wet-well's manhole cover.  The spill flowed onto the employees walkway; covering an area three feet in width, 1/4  in depth.  From here the wastewater spilled onto the the top of the dirt embankment of the Sanja Cota Creek and down into the dry creek bed (see pictures).	Y	34.60907	-120.0865							12/26/2023 22:45	Visual estimation	Casino staff that notified SYCSD at 10:30PM, staff believed the spill had only just started as the wastewater had only made it across the employee walkway and was beginning to wet the top of the dirt embankment.  The spill end time was noted by SYCSD staff as when they got the pump station running, stopping the spill.	Pump Station Failure - Controls		Pump Station - Mechanical		Cast Iron		18	None	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow		SYCSD staff disinfected affected areas with two gallons of bleach, then washed pump station area and employee walkway down with hose (reclaimed water).	Repaired Facilities or Replaced Defect		The pump stations wet-well High level alarm float went bad.  This float was removed and replaced on 12/27/2023.	The Creekwalk pump station is having its existing control cabinet removed and replaced with a new cabinet & controls, within the next month.	12/26/2023 23:00	The pump stations wet-well High level alarm float went bad.  This float was removed and replaced on 12/27/2023.	N	None		Sanja Cota Creek	Stream/Creek		Sanja Cota Creek, not running, dry.	None	Other (specify below)	None	N/A	0	N	N											None	
3	3SSO10330	Historical	Santa Ynez C.S.D. CS	Santa Ynez CSD	893785	1.1	Certified	Craig Kapner	Operations Supervisor		01-MAR-24	01-MAR-24	Category 1 Spill	Chumash Casino & Resort	12/26/2023 22:30	12/26/2023 22:45	02/26/2024 22:20		-		At 10:30PM, December 26, 2023, the SYCSD was notified by Chumash Casino & Resort staff that a wastewater spill was in progress at the Chumash Casino & Resort's Creekwalk pump station.  This pump station is located on the North side of the Sanja Cota creek, where the creek goes underneath the Casino.  Approximately 50 gallons of wastetwater flowed from the pump station.  SYCSD staff arrived at 10:45PM and stopped the spill.  The pump station area, and the employee walkway was disinfected with two gallons of bleach and washed off.  There was no damage to any persons, property of structures (see pictures).	34.60907	-120.0865	Pump Station	None	None	50	The spill occurred from the pump station's wet-well, spilling out from the wet-well's manhole cover.  The spill flowed onto the employees walkway; covering an area three feet in width, 1/4  in depth.  From here the wastewater spilled onto the the top of the dirt embankment (see pictures).		The spill occurred from the pump station's wet-well, spilling out from the wet-well's manhole cover.  The spill flowed onto the employees walkway; covering an area three feet in width, 1/4  in depth.  From here the wastewater spilled onto the the top of the dirt embankment of the Sanja Cota Creek and down into the dry creek bed (see pictures).	0	0	The spill occurred from the pump station's wet-well, spilling out from the wet-well's manhole cover.  The spill flowed onto the employees walkway; covering an area three feet in width, 1/4  in depth.  From here the wastewater spilled onto the the top of the dirt embankment of the Sanja Cota Creek and down into the dry creek bed (see pictures).	0	0	Other (specify below)	Sanja Cota Creek bed, not running, dry.	The spill occurred from the pump station's wet-well, spilling out from the wet-well's manhole cover.  The spill flowed onto the employees walkway; covering an area three feet in width, 1/4  in depth.  From here the wastewater spilled onto the the top of the dirt embankment of the Sanja Cota Creek and down into the dry creek bed (see pictures).	Y	34.60907	-120.0865							12/26/2023 22:45	Visual estimation	Casino staff that notified SYCSD at 10:30PM, staff believed the spill had only just started as the wastewater had only made it across the employee walkway and was beginning to wet the top of the dirt embankment.  The spill end time was noted by SYCSD staff as when they got the pump station running, stopping the spill.	Pump Station Failure - Controls		Pump Station - Mechanical		Cast Iron		18	None	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow		SYCSD staff disinfected affected areas with two gallons of bleach, then washed pump station area and employee walkway down with hose (reclaimed water).	Repaired Facilities or Replaced Defect		The pump stations wet-well High level alarm float went bad.  This float was removed and replaced on 12/27/2023.	The Creekwalk pump station is having its existing control cabinet removed and replaced with a new cabinet & controls, within the next month.	12/26/2023 23:00	The pump stations wet-well High level alarm float went bad.  This float was removed and replaced on 12/27/2023.	N	None		Sanja Cota Creek	Stream/Creek		Sanja Cota Creek, not running, dry.	None	Other (specify below)	None	N/A	0	N	N											None	
3	3SSO20011	Active	Santa Ynez C.S.D. CS	Santa Ynez CSD	893785	1.1	Certified	Craig Kapner	Operations Supervisor		01-MAR-24	01-MAR-24	Category 1 Spill	Chumash Casino & Resort	12/26/2023 22:30	12/26/2023 22:45	02/26/2024 22:20		-		At 10:30PM, December 26, 2023, the SYCSD was notified by Chumash Casino & Resort staff that a wastewater spill was in progress at the Chumash Casino & Resort's Creekwalk pump station.  This pump station is located on the North side of the Sanja Cota creek, where the creek goes underneath the Casino.  Approximately 50 gallons of wastetwater flowed from the pump station.  SYCSD staff arrived at 10:45PM and stopped the spill.  The pump station area, and the employee walkway was disinfected with two gallons of bleach and washed off.  There was no damage to any persons, property of structures (see pictures).	34.60907	-120.0865	Pump Station	None	None	50	The spill occurred from the pump station's wet-well, spilling out from the wet-well's manhole cover.  The spill flowed onto the employees walkway; covering an area three feet in width, 1/4  in depth.  From here the wastewater spilled onto the the top of the dirt embankment (see pictures).		The spill occurred from the pump station's wet-well, spilling out from the wet-well's manhole cover.  The spill flowed onto the employees walkway; covering an area three feet in width, 1/4  in depth.  From here the wastewater spilled onto the the top of the dirt embankment of the Sanja Cota Creek and down into the dry creek bed (see pictures).	0	0	The spill occurred from the pump station's wet-well, spilling out from the wet-well's manhole cover.  The spill flowed onto the employees walkway; covering an area three feet in width, 1/4  in depth.  From here the wastewater spilled onto the the top of the dirt embankment of the Sanja Cota Creek and down into the dry creek bed (see pictures).	0	0	Other (specify below)	Sanja Cota Creek bed, not running, dry.	The spill occurred from the pump station's wet-well, spilling out from the wet-well's manhole cover.  The spill flowed onto the employees walkway; covering an area three feet in width, 1/4  in depth.  From here the wastewater spilled onto the the top of the dirt embankment of the Sanja Cota Creek and down into the dry creek bed (see pictures).	Y	34.60907	-120.0865							12/26/2023 22:45	Visual estimation	Casino staff that notified SYCSD at 10:30PM, staff believed the spill had only just started as the wastewater had only made it across the employee walkway and was beginning to wet the top of the dirt embankment.  The spill end time was noted by SYCSD staff as when they got the pump station running, stopping the spill.	Pump Station Failure - Controls		Pump Station - Mechanical		Cast Iron		18	None	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow		SYCSD staff disinfected affected areas with two gallons of bleach, then washed pump station area and employee walkway down with hose (reclaimed water).	Repaired Facilities or Replaced Defect		The pump stations wet-well High level alarm float went bad.  This float was removed and replaced on 12/27/2023.	The Creekwalk pump station is having its existing control cabinet removed and replaced with a new cabinet & controls, within the next month.	12/26/2023 23:00	The pump stations wet-well High level alarm float went bad.  This float was removed and replaced on 12/27/2023.	N	None		Sanja Cota Creek	Stream/Creek		Sanja Cota Creek, not running, dry.	None	Other (specify below)	None	N/A	0	N	N											None	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	893791	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	01-MAR-24	07-MAR-24	07-MAR-24	Category 1 Spill	2627 Nicol Avenue, Oakland Ca	02/28/2024 09:40	02/28/2024 10:15	02/07/2024 13:30	03/01/2024 13:31	24-1254		Tree fell over above ground over 6  cast iron pipe on Easement due to inclement weather. The cast iron pipe on easement broke due to the fallen tree, causing the overflow affecting Sausal creek.	37.79488	-122.22007	Gravity Mainline	6  above ground cast iron pipe on easement.		1880	Tree fell over above ground over 6  cast iron pipe on Easement due to inclement weather. The cast iron pipe on easement broke due to the fallen tree, causing the overflow affecting Sausal creek.	Y	Dry creek called Sausal creek.	0	4600	Dry creek called Sausal creek.	4600	0	Surface Water	Dry creek bed.	Tree fell over above ground over 6  cast iron pipe on Easement due to inclement weather. The cast iron pipe on easement broke due to the fallen tree, causing the overflow affecting Sausal creek.	Y	37.79473	-122.22003							03/01/2024 13:31	Only property connected to the Mailine, 200 GPD x 23 days = 4,600 Gallons.	Start time was based on eyewitness account. End time was based on staff restoring flow by making a temporary repair to the mainline.	Natural Disaster (specify below)	Tree fell during inclement weather.	Gravity Mainline		Cast Iron		99	Tree fell over above ground over 6  cast iron pipe on Easement due to inclement weather. The cast iron pipe on easement broke due to the fallen tree, causing the overflow affecting Sausal creek.	Y	Cleaned Up (specify below); Restored Flow	Staff raked and removed spoils.	Staff restored flow by making a temporary repair to the mainline. Staff raked and removed spoils. 	Plan Rehabilitation or Replacement of Sewer		Plan rehabilitation or replacement of sewer.	N/A	02/17/2024 15:30	Tree fell over above ground over 6  cast iron pipe on Easement due to inclement weather. The cast iron pipe on easement broke due to the fallen tree, causing the overflow affecting Sausal creek.	N			Sausal creek dry bed.	Stream/Creek		Sausal Creek Dry Bed.	None.	Other (specify below)	N/A	N/A	0	Y	N												
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	893793	1.5	Certified	Kent Vian	Asst. Deputy Director	01-MAR-24	29-MAR-24	29-MAR-24	Category 1 Spill	NOT-40201067909 - 5692 EASTGATE DR	03/01/2024 10:59	03/01/2024 11:25	03/01/2024 10:55	03/01/2024 17:10	24-1264		THE SPILL TRAVELED NORTHWEST DOWN INTO SOLEDAD CANYON AND SETTLED INTO SOIL.	32.88803	-117.19948	Manhole			1725	SPILL BOUNDARIES ARE IN SOLEDAD CANYON. SOLEDAD CANYON IS DRY BUT IS A STORMWATER CONVEYANCE DURING RAIN EVENTS. 	Y	THE DRAINAGE CONVEYANCE SYSTEM IS OF A CONCRETE/SOIL COMBINATION THAT RUNS STORMWATER DURING A RAIN EVENT.	0	1725	THE DISCHARGE POINTS WERE INTO CONCRETE CONVEYANCE SYSTEM & SOAKED INTO SOIL	0	0	Drainage Conveyance System; Unpaved Surface		SOAKED INTO THE SOIL WITHIN SOLEDAD CANYON 	Y	32.88802	-117.19817							03/01/2024 16:40	VISUAL CALCULATED METHOD.	THE START TIME IS WHEN THE CONSUMER CALLS OUR DISPATCH STATION 38. THEY CREATED A WORK ORDER, AND WE RECEIVED THE CALL SHORTLY AFTER.	Root Intrusion		Manhole		Vitrified Clay		37	MINIMAL IMPACTS AS THE SPILL SOAKED INTO THE GROUND IN THE DRY CANYON BED.	N	Restored Flow		CITY CREWS INVESTIGATED, RESPONDED, RELIEVED, AND TRACKED DOWN THE FINAL DESTINATION OF THE SPILL AND CCTV MAINS FOR CITY PROTECTION.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		REVIEW CURRENT MAINTENANCE SCHEDULE AND ADJUST ACCORDINGLY	NOT AT THIS TIME	03/14/2024 08:24	CREWS RESPONED TO THE CALL FOUND SPILL AND RELIEVED IT WITH THE USE OF A VACTOR COMBNATION TRUCK. 	N		03/14/2024 21:07	NO RECEIVING BODYS 	Other (specify below)	N/A	NO RECEIVING BODIES OF WATER WERE IMPACTED.	NO IMPACTS TO AQUATIC LIFE	Other (specify below)	NONE NO PUBLIC ACCESS	DEPARTMENT OF ENVIRONMENTAL SERVICES	0	N	N												
4	4SSO10429	Active	Santa Clarita City CS	City of Santa Clarita 	893803	1.3	Certified	Robert Swartz	Sr. CE	05-MAR-24	14-MAR-24	14-MAR-24	Category 1 Spill	1298 (24453 Cross Street, Santa Clarita)	02/10/2024 14:37	02/10/2024 16:30	02/10/2024 10:30	02/10/2024 17:42	24-0865		CSMD Map Sheet No. 1298 MMS No. 8651936	34.37292	118.53679	Lateral Clean Out (Private)			9875	Upon arrival, clean-out at 24453 Cross Street was overflowing. Portion of the sewage discharge entered property and storm drain BI 1222.	Y	Portion of the sewage discharge entered property and storm drain BI 1222, which leads to Santa Clara River South Fork, Unknown Drain to Santa Clara River. 	0	8875	Portion of the sewage discharge entered property and storm drain BI 1222, which leads to Santa Clara River South Fork, Unknown Drain to Santa Clara River. 	8875	1000	Building or Structure; Drainage Conveyance System that discharges to surface water; Unpaved Surface		Portion of the sewage discharge entered property and storm drain BI 1222, which leads to Santa Clara River South Fork, Unknown Drain to Santa Clara River. 	N									02/10/2024 17:05	CWEA SSCSC Manhole Overflow Gauge	The start time is obtained from the reporting party, the end time is when the crew clears the obstruction, and the overflow stops. 	Root Intrusion		Gravity Mainline		Vitrified Clay		53	None	N	Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow	 	Upon arrival, the cleanout at 24453 Cross Street was overflowing. We used a penetrator nozzle to break down the heavy root blockage in the mainline. The homeowner had Tip Top Restoration for cleanup and repair following sewage entry into the home. Additionally, a cleaning service form was provided to the homeowner for further cleaning purposes. All required agencies were notified. 	Other (specify below)	The sewer is already added to a preventive maintenance program. We will inspect the sewer using CCTV to determine if adjustments to the current periodic is needed. 	The sewer is already added to a preventive maintenance program. We will inspect the sewer using CCTV to determine if adjustments to the current periodic is needed. 	90-day frequency	02/10/2024 20:20	The sewer is already added to a preventive maintenance program. We will inspect the sewer using CCTV to determine if adjustments to the current periodic is needed. 	Y	The sewer is already added to a preventive maintenance program. We will inspect the sewer using CCTV to determine if adjustments to the current periodic is needed. 	04/10/2024 11:24	Santa Clara River	River		Santa Clara River	No impacts	Other (specify below)	No Impact	N/A	0	N	N											The sewer is already added to a preventive maintenance program. We will inspect the sewer using CCTV to determine if adjustments to the current periodic is needed. 	
2	2SSO10125	Active	Cupertino SD CS	Cupertino Sanitary District	893808	1.2	Certified	Benjamin Porter	District Manager		29-MAR-24	29-MAR-24	Monthly Category 3 Spill	10116 PRADO VISTA DR, CUPERTINO	02/20/2024 09:09	02/20/2024 09:22	02/20/2024 07:30				10116 PRADO VISTA DR, CUPERTINO. The spill began with an uncapped PLCO and seeped onto the property's sidewalk. It remained contained within the paved walkway, measuring 28 feet in length and stretching between widths of 1.8 to 3.1 feet.	37.32154	-122.07072	Lateral Clean Out (Private); Upper Lateral (Private)			90	The spill began with an uncapped PLCO and seeped onto the property's sidewalk. It remained contained within the paved walkway, measuring 28 feet in length and stretching between widths of 1.8 to 3.1 feet.	N						90	Paved Surface		10116 PRADO VISTA DR, CUPERTINO. The spill began with an uncapped PLCO and seeped onto the property's sidewalk. It remained contained within the paved walkway, measuring 28 feet in length and stretching between widths of 1.8 to 3.1 feet.	Y	37.32154	-122.07072							02/20/2024 09:48	As the spill was contained within the sidewalk, the spill volume estimations were calculated using the measured volume method. Onsite, the dimensions of the spill, including its length, width, and depth, were measured and recorded. 	The spill's start was determined based on the data, information, and observations provided by the neighbor and homeowner through interviews. The spill's end time was observed by the district inspector after they arrived on-site and commenced cleanup and flow restoration.	Debris-Rags; Pipe Structural Problem/Failure - Installation; Root Intrusion		Gravity Mainline; Lower Lateral; Upper Lateral		Vitrified Clay		50	The spill on the sidewalk of the property has not impacted the surrounding environment. However, cleanup is required to address the localized impact on the property itself.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		An email about the backup was received by the district at 9:11 AM, so the district inspector arrived on-site at 9:22 AM. The inspector examined both upstream (L2-262) and downstream (L2-257) manholes and discovered that sewer was being held in one of the manholes. Subsequently, the inspector reached out to a contractor to clear the blockage at the mainline and restore the flow. Meanwhile, another contractor was arranged to inspect the laterals and removed blockages. Cleanup efforts included washing down the sidewalk and ensuring that all wash down returned to the sewer system through the PLCO.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		All blockages were cleared, and a test run was conducted to ensure flow was restored on-site. Cutters were run at lower laterals to confirm they were cleaned and free of blockages. The spill was cleaned up using a wash down method. The district plans to return in 6 months to evaluate the root situation and assess the condition of the mainlines, laterals, and manholes before proceeding with further modifications.		02/20/2024 13:32	The investigation determined that the spill occurred on the sidewalk of the property located at 10116 Pardo Vista Dr. due to the absence of a capped PLCO and backflow device at this property. Consequently, when the sewer backed up due to a blockage caused by root intrusion in the lateral and in the mainline at 22620 Stevens Creek Blvd, resulted in the spill at the cleanout.		none	02/20/2024 13:36														None.	The District plans to return in 6 months to evaluate the root situation and assess the condition of the mainlines, laterals, and manholes before proceeding with further modifications on maintenance schedule.	The District plans to return in 6 months to evaluate the root situation and assess the condition of the mainlines, laterals, and manholes before proceeding with further modifications on maintenance schedule. (Instead of 12 months) 	None	None	None	The maintenance schedule along with the corresponding work order will be sent to the inspector via Lucity before 6 months time. 	none 	none	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	893809	1.2	Certified	John J. Hough	San Dist. Superintendent	04-MAR-24	13-MAR-24	13-MAR-24	Category 1 Spill	339816	03/01/2024 14:55	03/01/2024 15:34	02/28/2024 20:00		-		See Attached Spill map with Photos.	38.4618	-121.3998	Lateral Clean Out (Public)			378	See Attached Spill Map with Photos	Y	See Attached Spill map with Photos.	249	0	See Attached Spill map with Photos.	114	262	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See attached Spill Map with Photos.	Y	38.4618	-121.3998	38.4621	-121.4003	38.4581	-121.4101			03/01/2024 15:34	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Root Intrusion		Lower Lateral		Vitrified Clay		39	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified Sacramento County Water Resources Drainage O&M Via Sacramento County 311	See Attached Description of Spill Event	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		SacSewer inspected the lower lateral with CCTV on March 1, 2024. Based on the findings, SacSewer will repair the lower lateral.	Target finish date for lower lateral repair is March 31, 2024.	03/01/2024 20:00	See Attached Description of Spill Event	N			Strawberry Creek	Stream/Creek		Earth lined channel with stagnant flow.	No observed impacts to aquatic life	Other (specify below)	No public access impact.	N/A	0	N	N												
8	8SSO10543	Active	Beaumont City CS	Beaumont City	893811	1.2	Certified	Jerome Moledor	Wastewater Collections Supervisor	05-MAR-24	11-MAR-24	11-MAR-24	Category 2 Spill	Apx 290' South of Cherry Ave and Cedar Hollow Street	02/29/2024 10:31	02/29/2024 10:38	02/29/2024 08:00		-		There were 2 appearance points. Frist was a Manhole and 2nd was a clean in a sports field. See pics.	33.94949	-116.96438	Lateral Clean Out (Private); Manhole		Clean out in Lower sports field.	15000	From manhole it went into the gutter then it traveled apx 840' south on Cherry Ave then turned West and traveled apx 3830' on Oak Valley prky to a drain intel that daylights to a dry non flowing ditch that was not discharging. 	Y	Drain intel that daylights to a dry non flowing ditch that was not discharging. 	9000	6000			9000	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		Spill went from MH to Gutter then 840' South down Cherry. Then West approx 3830' down Oak Valley Parkway. Entered a storm drain intel (1.c.) that daylights to a dry ditch (1.f.). Also some spill went into a sports field (1.h.).	Y	33.94709	-116.97699	33.94682	-116.98068	33.95156	-116.96607			02/29/2024 12:11	Spill was estimated by on-site comparison with spill simulation pics then times by approx. run time. 	assumptions on start time were made by talking to caller and sports field staff, then adding more time.	Debris-General		Gravity Mainline		Vitrified Clay		84	Impact was kept to street, gutter, storm drain, dry ditch, and lower sports field. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Flushed and disinfected with diluted chlorine.	Area was coned off and danger signs posted. Earth damn was built to contain spill. Used vactor to relive blockage. Then Cleaned up lower sports field, street, gutter, and storm drain. Flushed and disinfected with diluted chlorine.	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Added to preventive maintenance cleaning. CCTVing lines in the area to see if we can find the problem.	Ongoing. 	02/29/2024 16:00	Spill cause looks to be rocks, grit, and clay.  CCTVing lines in the area to see if we can find the problem.	Y	To find the problem.	03/11/2024 16:30										N												To find the problem.	
5S	5SSO10869	Active	Auburn Lk Trls Onsite WW Disp CS	Georgetown Divide PUD	893812	1.2	Certified	Alexis Elliott	Water Resources Manager	04-MAR-24	15-MAR-24	15-MAR-24	Category 1 Spill	1593 American River Trail	02/28/2024 13:41	02/28/2024 08:00	02/28/2024 08:00	03/04/2024 13:40	24-1321		Spill started overflowing out of the manhole Feb 28 and was contained until Sat March 2. Rain storms from the weekend increased flow. 	38.899215	-121.000536	Manhole			58000	Spill goes into a culvert and then into seasonal drainage. The manhole is roughly 3000 feet away from a seasonal creek. Map and photos attached	Y	Going into a culvert, which leads to a seasonal drainage. Blockage from a well cap and poly pipe puller tool that broke off in the system. Treated with chlorine at spill. 	0	0	After the culvert, the spill reaches a seasonal drainage behind the homes on American River Trail. With all the rain it is heavily diluted. See map attached.	58000	58000	Drainage Conveyance System that discharges to surface water; Surface Water		Traveled 3000 feet to seasonal creek. 	Y	38.89244	-120.997194							03/11/2024 11:20	Estimated gpm. 	Employee's were on site when spill occurred and ended. 	Damage by Others Not Related to Collection System Construction/Maintenance; Rainfall Exceeded Design, I and I (Separate Collection System Only)	Construction material not owned by District entered the system and excessive rainfall and I&I caused it to back up. 	Gravity Mainline; Manhole	Blockage in line hwich caused it to back up in the manhole. 	Acrylonitr. Butadiene Styrene (ABS); Polyvinyl Chloride (PVC)	The block was in a sleeved section of the sewer. ABS inside of PVC.	10	None that we no. No aquatic life is in the seasonal creeks. When we chlorinated the effluent around the man hole some earthworms were killed. 	Y	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Property Owner Notified	Notified home in the area. Had hydro jetted, snaked, and camera before storm. 	Chlorine pucks, granular chlorine, waddles, and trench. 	Repaired Facilities or Replaced Defect	Removed items and replaced section of line. 	We did everything we could to remove these items on our own but needed a contractor. The recent rain storms and I&I made it spill before we could get a contractor out. 	Line replacement on March 11, 2024. 	03/11/2024 16:30	Poly line puller and well cap causing 100% blockage in gravity line. 	N			Knickerbocker Creek	Other (specify below)	seasonal creek	Knickerbocker creek is seasonal and runs mostly from the district irrigation water. Is not a drinking water supply. 	none	Other (specify below)	None	none	0	N	Y	Rain run off above spill, and seasonal drainage below spill. 	tested for total coliform, fecal coliform, and ammonia. 										
5S	5SSO10893	Active	City Of Folsom CS	Folsom City - Environmental & Water Resources Dept	893849	1.2	Certified	Marcus Yasutake	Environmental & Water Resources Director		25-MAR-24	25-MAR-24	Monthly Category 3 Spill	112 Horn Court	03/04/2024 12:51	03/04/2024 13:05	03/04/2024 10:51				The spill discharged from manhole SS-B03-41120	38.68573	-121.19271	Manhole			250	The spill reached unpaved landscaping that did not reach surface roads or any other paved surface. 	N						170	Unpaved Surface		Staff received a call regarding an overflowing manhole. Staff arrived to find manhole SS-B03-41120 spilling. A Vac-truck was positioned at manhole SS-B03-1-41216 to mitigate the effects of the spill. A second Vac-truck arrived and positioned at manhole B03-41240. Using the mainline flushing hose the unknown blockage was cleared. It was determined the cause of the spill was root intrusion. The first Vac-truck was then repositioned at the manhole that was spilling, while the second Vac-truck was repositioned near the end of the spill destination that was in a residential back yard. Using shovels, high pressure water, and spray disinfectant both spill areas were cleaned into the vacuum section of each truck. The spill was estimated to be 250 gallons with approximately 170 gallons recovered, and approximately 80 gallons lost to saturation. 	Y	38.68571	-121.19276	38.68532	-121.19276					03/04/2024 13:25	The spill was estimated using length, depth, and width of the spill area, as well as visual inspection, experience, training, and conversations with other staff members.	For the spill start time, we estimated based on the volume of the spill as well as speaking with the party that called the spill in.(Cody San Juan Water 916-580-9859) The end time was determined visually. Once the blockage was cleared the manhole stopped spilling. 	Root Intrusion		Manhole		Vitrified Clay		10	The impact of the spill was limited to an unpaved surface area that did not reach a waterway. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		A Vac-truck was positioned at the upstream manhole SS-B03-1-41216 to slow the spill discharge. For the clean up, shovels were used to removed top soil, high pressure water and spray disinfectant were used to wash the spill area into the vacuum section of the truck.	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	The roots were removed manually as well as jetting with the Vac-truck	Roots were removed, mainline was CCTV'd. The manhole will be re-inspected at a later date to determine any possible risk of root impact.		03/04/2024 15:55	Roots entered the manhole, causing a blockage of the gravity 10in mainline.		n/a	03/04/2024 15:55														n/a	n/a	n/a	Not needed, roots were removed.	CCTV inspection	n/a	n/a	n/a	n/a	
2	2SSO10172	Active	Ross Valley Sanitary District CS	Ross Valley SD	893851	1.2	Certified	Paul Bruemmer	O&M Manager 		15-MAR-24	15-MAR-24	Monthly Category 3 Spill	20 Skylark Dr, Larkspur, CA 	02/16/2024 14:56	02/16/2024 15:41	02/16/2024 14:00				The spill originated from a grease blockage in an 8  AC sewer, behind an apartment complex, in a dirt/fire road easement. The spill's appearance point was out of a manhole cover. 	37.9437	-122.54667	Manhole			420	The spill overflowed out of a manhole L418.070, and soaked into the surrounding dirt.  	N						30	Unpaved Surface		The spill destination was approximately a 20'x 27' area of dirt surrounding the manhole. 	Y	37.9437	-122.54667							02/16/2024 17:30	Spill volume estimations were done using the Districts manhole overflow estimation chart /eyeball method and the duration and flow rate comparison method. 	The spill start time was determined by witness account of the spill site. The witness did not see the spill @ 1:30pm but did see the spill @ 2:30pm. That information in combination with the volume of spill at the spill site is how the start time was determined. The spill end time was determined when the spill blockage was broken, ending the overflow. 	Debris-Rags; Fats, Oil and Grease (FOG)		Gravity Mainline		Other (specify below)	asbestos cement 	75	The spill had no impact to the public or the environment. 	N	Cleaned Up (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		The spill was contained to the surrounding area (dirt). Staff removed any solids and returned any standing/puddled material to the sewer system. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		The sewer main was inspected using CCTV. There is a >50% sag in the main. We have adjusted the CCTV inspection  rate to 6 months and we are recommending this pipe segment for CIP replacement to our engineering department. 		02/16/2024 18:57	The sewer main was inspected using CCTV. There is a >50% sag in the main. We have adjusted the CCTV inspection rate to 6 months and we are recommending this pipe segment for CIP replacement to our engineering department. 		none.	02/16/2024 18:57														n/a	yes	We have adjusted the CCTV inspection  rate to 6 months.	We have recommended this main for replacement to our engineering department. 	Yes, CCTV inspected. 	Recommended for CIP to engineering department. 	CCTV inspection rate/monitoring was changed in our CMMS system to 6 months. 	none. 	none.	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	893852	1.2	Certified	John J. Hough	San Dist. Superintendent	05-MAR-24	15-MAR-24	15-MAR-24	Category 1 Spill	339828	03/02/2024 11:17	03/02/2024 12:28	03/01/2024 12:00		-		See Attached Spill map with Photos.	38.4503	-121.3597	Lateral Clean Out (Public)			78	See Attached Spill Map with Photos.	Y	See Attached Spill Map with Photos.	0	0	See Attached Spill Map with Photos.	69	6	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See attached Spill Map with Photos.	Y	38.4503	-121.3597	38.4511	-121.3599	38.451	-121.3641			03/02/2024 12:28	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Root Intrusion		Lower Lateral		Vitrified Clay		29	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified the City of Elk Grove.	See Attached Description of Spill Event.	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		SacSewer inspected the lower lateral with CCTV on March 02, 2024. Based on the findings, SacSewer will replace the lower lateral.	Target finish date for lower lateral replacement is June 30, 2024.	03/02/2024 16:18	See Attached Description of Spill Event	N			Strawberry Creek	Stream/Creek		Earthen channel with moderate flow.	No observed impacts to aquatic life	Other (specify below)	No public access impact	N/A	0	N	N												
2	2SSO10162	Active	Novato And Ignacio CS	Novato Sanitary District	893856	1.1	Certified	Jeff Andress	Collection Systems Superintendent		28-MAR-24	28-MAR-24	Monthly Category 3 Spill	699 Railroad Ave, Novato, CA	02/12/2024 15:32	02/12/2024 15:47	02/12/2024 15:00				upon operator arrival, there was not an active spill, just water stains on the asphalt. There was what appeared to be sewage puddled up along the edge of the road with wet dirt around the puddles. It appeared to have come out of a manhole at the intersection of Railroad Ave, and Logan Street. 	38.10676	-122.56475	Manhole			365	Puddled up along side of Railroad Ave. 	N						50	Paved Surface; Unpaved Surface		wet dirt approximately 98' along the road by 6' wide. by 1  deep average. 	Y	38.10675	-122.56474							02/12/2024 15:30	Since there was not an active spill going on when the Collections crew arrived, just staining on the asphalt from the manhole to the side of the road, we took measurements of the area on the side of the road. It was determined that the spill area with puddle up sewer was 98� x 6� x 1�. 98 x 6 = 588sf x .083(1�) = 48.804CF x 7.48gal = 365 gallons. 	This is a moderately trafficked area and right down the street from city hall. It would be very likely someone to notice the active spill and call in if it were going much longer. City employee noticed it and called the district. 	Root Intrusion	Possibly roots pushed into the mainline from a lateral, as the roots recovered were in the shape of a pipe. 	Lower Lateral		Vitrified Clay		60	No other impact than wet soil from absorbtion	N	Cleaned Up (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		vacuumed up remaining liquids in the puddles along the side of Railroad avenue. also removed wet dirt. pressure washed the street and collected with the vacuum. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Added line to the districts root treatment program. 		02/12/2024 17:15	Line was cleaned two months prior to the spill. CCTV inspection: It appeared to have a root ball pushed into the mainline from a lower lateral. Line was added to the root treatment program list. 		none	02/12/2024 18:06														none	Line was cleaned two months prior to the spill. It appeared to have a root ball pushed into the mainline from a lower lateral. Line was added to the root treatment program list. 	Line was cleaned two months prior to the spill. It appeared to have a root ball pushed into the mainline from a lower lateral. Line was added to the root treatment program list. 	none at this time. 	CCTV inspection. 	none	none	none	none	
3	3SSO18097	Active	Pajaro County Sanitation District Collection System	Pajaro County Sanitation District	893864	1.1	Certified	Tom Moss	Senior Water Resources Hydrologist		05-MAR-24	05-MAR-24	Monthly Category 3 Spill	Salinas Road 2,000 feet from Elkhorn Road	03/23/2023 18:00	03/23/2023 18:30	03/23/2023 17:45				The spill occurred at Manhole MH B-18 located on west side of southbound Salinas Road approximately 1,200 feet south of Trafton Road.  See attached photographs.	36.88326	-121.74693	Lateral Clean Out (Private); Manhole	MH B-18		500	The spill was contained in the adjacent ditch west of Salinas Road.  Vacuum trucks were in Pajaro, due to the ongoing repairs of the sewer force main at Highway 1, and they were able to respond quickly.	N						500	Other (specify below)	Road side ditch adjacent to Salinas Road	The spill was contained in the roadside ditch west of southbound Salinas Road.  Wastewater pooled in the ditch approximately 100 feet north and south of MH B-18.										03/23/2023 19:30	The spill volume was estimated by County of Monterey Public Works operations and maintenance staff who measured the length, width and depth of the ditch.	The spill start time was conveyed by adjacent farmer, and Public Works staff were onsite to verify the end time.	Other (specify below)	The Monterey County Sheriff's Office lifted the Pajaro evacuation order March 23 at 10:00 before the force main was repaired.  The vacuum trucks were not able to keep up with inflow for a short period.	Manhole		Concrete		40	No impacts were observed or reported.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Returned All Spill to Sanitary Sewer System		The spill was contained in the roadside ditch.  Wastewater was vacuumed out of the ditch, and the affected area was bleached.  Containment waddles were removed and disposed of following bleaching.	Repaired Facilities or Replaced Defect		The sewer force main break at Highway 1 has been repaired.		03/24/2023 12:00	The Monterey County Sheriff's Office lifted the Pajaro evacuation order March 23 at 10:00 a.m. before the force main was repaired.  The vacuum trucks were not able to keep up with inflow for a short period that evening.		N/A	03/24/2023 12:00														N/A	None	N/A	N/A	The sewer force main at Highway 1 has been repaired.	N/A	N/A	N/A	N/A	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	893865	1.2	Certified	John J. Hough	San Dist. Superintendent	05-MAR-24	18-MAR-24	18-MAR-24	Category 1 Spill	339845	03/03/2024 15:25	03/03/2024 16:24	03/03/2024 12:00		-		See Attached Spill Map with Photos.	38.4669	-121.4459	Lateral Clean Out (Public)			75	See Attached Spill Map with Photos.	Y	See Attached Spill Map with Photos.	2	0	See Attached Spill Map with Photos.	64	7	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See attached Spill Map with Photos.	Y	38.4669	-121.4459	38.467	-121.4459	38.4632	-121.4464			03/03/2024 16:24	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Debris-General; Root Intrusion		Lower Lateral		Vitrified Clay		42	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified the City of Sacramento.	See Attached Description of Spill Event	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		SacSewer inspected the lower lateral with CCTV on March 03, 2024. Based on the findings, SacSewer will replace the lower lateral tap to the mainline.	Target finish date for lower lateral mainline tap replacement is August 31, 2024.	03/03/2024 18:24	See Attached Description of Spill Event	N			Beacon Creek	Stream/Creek		Lined channel with moderate flow.	No observed impacts to aquatic life	Other (specify below)	No public access impact.	N/A	0	N	N												
4	4SSO10399	Active	La Mirada City CS	La Mirada City	893876	1.1	Certified	Jeffrey S. Bouse	Senior Civil Engineer		14-MAR-24	14-MAR-24	Monthly Category 3 Spill	2178 - 15569 Talbot Drive, La Mirada (Talbot Pump Station)	02/08/2024 14:15	02/08/2024 15:00	02/08/2024 13:30				CSMD Map Sheet No. 2178 MMS No. 8651230 Talbot Pump Station	33.88919	117.99903	Force Main; Other (specify below)	Upon arrival, sewage was leaking out of the front neighbor's driveway from a broken force main. 		50	Sewage evaporated and seeped into the ground. 	N						0	Other (specify below); Street/Curb and Gutter (2 3)	Driveway	Sewage evaporated and seeped into the ground. 	N									02/08/2024 15:05	Visual	Visual	Other (specify below)	Broken force main	Force Main		Cast Iron		67	No impacts.	N	Other Enforcement Agency Notified		Crew responded to a reported sewage force main leak and shut down pump station to immediately stop leak 2/8/2024 at 3:05 PM. Sewage was hauled from pump station until force main pipe was repaired and pump station restarted on 2/9/2024 at 3:00 PM. 	Repaired Facilities or Replaced Defect		Section of fractured force main has been removed and replaced. 		02/08/2024 15:05	Broken force main		N/A	02/09/2024 15:00														N/A	N/A	N/A	Section of fractured force main has been removed and replaced. 	Section of fractured force main has been removed and replaced. 	N/A	N/A	N/A	N/A	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	893879	1.3	Certified	Ameal McLaurin	Sewer Supervisor 2		09-MAR-24	09-MAR-24	Monthly Category 3 Spill	6041 Mazuela Drive, Oakland Ca	02/22/2024 18:40	02/22/2024 20:10	02/22/2024 15:40				Buried lamp-hole on a hillside on easement.	37.83426	-122.20782	Other (specify below)	Buried lamp-hole on a hillside on easement.		125	Buried lamp-hole on a hillside on easement. the sewage flowed into unpaved surface, it soaked into the soil.	N						0	Unpaved Surface		Buried lamp-hole on a hillside on easement. the sewage flowed into unpaved surface, it soaked into the soil.										02/22/2024 20:20	Average width: 7' + 5' + 3' + 2 = 17' / 4 = 4.25' 21'L x 4.25W x 1'D x 7.48-Gal x .1875 = 125 Gallons	Start time was based on eyewitness account. End time was based on responding sewer crew restoring the flow in the mainline. 	Debris-General		Gravity Mainline		Other (specify below)	Corrugated metal pipe (CMP)	99	Buried lamp-hole on a hillside on easement. the sewage flowed into unpaved surface, it soaked into the soil.	Y	Cleaned Up (specify below); Property Owner Notified; Restored Flow		Sewer crew raked and removed contaminated spoils.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Dig tag construction work order # 1508683 to dig and make spot repair was created. 6-month high frequency hydro work order # 1508976 was created.		03/05/2024 12:00	General debris was the cause of the overflow. CCTV inspection found a rusted-out piece of CMP. Dig tag construction work order # 1508683 to dig and make spot repair was created.		N/A	03/07/2024 13:00														N/A	Dig tag construction work order # 1508683 to dig and make spot repair was created. 6-month high frequency hydro work order # 1508976 was created.	6-month high frequency hydro work order # 1508976 was created.	Dig tag construction work order # 1508683 to dig and make spot repair was created.	CCTV inspection has been completed on 3/7/24.	N/A	Dig tag construction work order # 1508683 to dig and make spot repair was created. 6-month high frequency hydro work order # 1508976 was created.	Dig tag construction work order # 1508683 to dig and make spot repair was created. 6-month high frequency hydro work order # 1508976 was created.	N/A	
3	3SSO18097	Active	Pajaro County Sanitation District Collection System	Pajaro County Sanitation District	893886	1.2	Certified	Tom Moss	Senior Water Resources Hydrologist	06-MAR-24	06-MAR-24	06-MAR-24	Category 2 Spill	1550 feet downstream from southbound Highway 1	01/17/2023 12:15	01/17/2023 01:40	01/17/2023 11:45		-		The spill originated from force main coupling separation approximately 1550 feet downstream from southbound Highway 1.  See Attached photographs.	36.88244	-121.77773	Force Main			3225	The spill flowed down the furrows on the adjacent farm before it was collected in the impoundment construction by the County of Monterey.  See attached photos.	N	The spill flowed down furrows in the adjacent farm field and was intercepted in an impoundment area constructed by the County.  See attached photographs.	3125	100			3125	Other (specify below); Unpaved Surface	Farm Fields.	The spill flowed down furrows in the adjacent farm field and wastewater was captured in an impoundment area constructed by a County contractor.	Y	36.88244	-121.77773							01/18/2023 13:47	The spill volume was estimated based on the volume of water recovered from the impoundment area which included 6.25 loads of a 500 gallon vacuum truck.  Staff estimated 100 gallons remained in the impoundment area that couldn't be recovered.	The start time was estimated based on the time staff was informed of the spill and the extend of the spill when staff arrived on site.  The end time was based upon staff observations of the repair.	Natural Disaster (specify below)	It is believed that significant rainfall and high water levels in the Pajaro River resulted in buoyancy and separation of the coupling from the force main. 	Force Main		Other (specify below)	Asbestos Cement Pipe	43	There are no known impacts.  The site experienced significant flooding from a Pajaro River levee failure less than two after this spill.	N	Returned Portion of Spill to Sanitary Sewer System		Staff responded immediately to the report of a spill.  A JOC contractor brought equipment to the site to construct an impoundment area and limit the spread over the farm fields.  The force main was repaired the next day, and nearly all the water in the impoundment area was removed with a vacuum truck and returned to the sanitary sewer system.	Repaired Facilities or Replaced Defect		The force main was repair using Marmac couplers.  The line was wrapped using 20 mil tape, and it was encased in concrete.	The repairs were completed the day after the spill was reported.  	01/18/2023 13:47	The force main separated from the coupling on top portion of the pipe.	N												N													
8	8SSO10543	Active	Beaumont City CS	Beaumont City	893897	1.3	Certified	Jerome Moledor	Wastewater Collections Supervisor	07-MAR-24	14-MAR-24	14-MAR-24	Category 1 Spill	Castello LN and Florentina CT	03/04/2024 15:08	03/04/2024 15:20	03/04/2024 12:41	03/04/2024 17:04	24-1328		Spill was out of a manhole in the intersection of Castello LN and Florentina CT. Within a housing track that is not maintained by the City yet. Developer is Taylor Morrison Homes.	33.9402	-117.02897	Manhole			12000	The spill went from the manhole approx. 80' West to a storm drain intel. This storm drain Day lights to a wash to the North. 	Y	Gutter and storm drain intel at street to enclosed drain pipe that day lights to a wash to the North. 	3000	0	The end of the drain daylights to a wash. The spill traveled approximately 100' down the wash.	3000	9000	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		Spill went from manhole approx. 90' West to storm drain intel (1.b.) then approx. 330' North West to storm drain outlet (1.f.) then approx. 100' North West in a dry ditch (1.h.)	Y	33.94024	-117.02918	33.94039	-117.03033	33.94066	-117.0308			03/04/2024 15:08	Spill volume was estimated by on-site and visual comparison to mahole spill simulation gauge then times by approx. spill run time. Estimation of spill recovered was made by how many full vac truck loads where picked up.	assumptions of start time where made by callers call time and talking to other community members, then adding more time.	Debris from Construction; Debris-Rags; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Polyvinyl Chloride (PVC)		4	Spill impact was on street, gutter, storm drain, and dry ditch. The street was closed for a couple of hours. No houses or people were affected.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Cleaned up using Vac trucks from City and sub contractor for Taylor Morrison. Flushed storm lines and Vac up ditch.	response for spill was first building earth damns to stop flow into storm drain. Coning off the area posting danger signs and closing the street. Vac at spill site to stop spill, while locating and exposing covered down stream manhole. Jetting from downstream manhole to clear blockage. Then using vac trucks clean up the street, gutter, storm drain, and ditch. 	Other (specify below)	Area is under control of builder (Taylor Morrison) so the City put a stop work order in until they clean and video the system along with other punch list items.	Area is under control of builder (Taylor Morrison) so the City put a stop work order in until then clean and video the system along with other punch list items.	On going	03/05/2024 19:15	Once down stream manhole was found and exposed, the spill cause was found to be a rope that was tied form the ladder of one manhole all the way to the ladder of another manhole. This rope collected wipes, rages, grease, etc until making a blockage.	Y	To make sure Taylor Morrison is doing what is asked of them. 	03/31/2024 14:46	N/A	Wash		Dry ditch	None ditch is dry	Other (specify below)	There is no public access in this ditch.	N/A	0	N	N											To make sure Taylor Morrison is doing what is asked of them. 	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	893899	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	07-MAR-24	09-MAR-24	09-MAR-24	Category 1 Spill	4450 Ziegler Avenue, Oakland Ca	03/04/2024 16:53	03/04/2024 18:58	03/04/2024 16:05	03/04/2024 20:23	24-1332		Buried lamp-hole on side of the property on a walking trail on easement.	37.74994	-122.12623	Other (specify below)	Buried lamp-hole on side of the property on a walking trail on easement.		1200	Buried lamp-hole on side of the property on a walking trail on easement, the sewage was flowing out to rain-soaked unpaved surface, down onto paved surface on the street, and into a storm drain.	Y	12  corrugated metal pipe that flows down in underground storm conveyance system that flows to Lion creek, Arroyo Viejo creek, and Damon Slough.	0	1200	12  corrugated metal pipe that flows down in underground storm conveyance system that flows to Lion creek, Arroyo Viejo creek, and Damon Slough.	1200	0	Drainage Conveyance System that discharges to surface water; Unpaved Surface		Sewage overflowed from lamp hole on easement onto saturated soil from rain. Sewage spilled also into a storm inlet. Storm inlet leads to Lion creek, Arroyo Viejo creek, and Damon Slough.	Y	37.74891	-122.12646							03/04/2024 20:04	240 min x 5 Gpm = 1200 Gallons. Total spilled.	Start time was based on eyewitness account. Start time was based when responding crew opened the mainline.	Damage by Others Not Related to Collection System Construction/Maintenance	Upon further investigation in the daylight hours the next morning, we discovered through Goggle Earth that the entire area where this Lamp-hole is located and the standpipe was damaged, it was more than likely caused by vehicle(s). The place had large trees removed, the ground was leveled, and somebody had constructed a gravel trail through the area. Leading me to believe this was caused by dirt and other debris falling through damaged standpipe and causing the blockage leading to the overflow.	Gravity Mainline		Vitrified Clay		99	1,200 gallons overflowed from a lamp hole onto the saturated soil down the hill into a storm inlet.	N	Cleaned Up (specify below); Restored Flow	Staff vacuumed, washed, cleaned and removed waste from affected areas.	Staff washed, cleaned and removed waste from affected areas.	Inspected Sewer Using CCTV to Determine Cause		Due to cause of the spill, there was no need to place line on a high frequency schedule. Rock gravel and dirt entered the line through the lamp hole when construction was performed.	Due to cause of the spill, there was no need to place line on a high frequency schedule. Rock gravel and dirt entered the line through the lamp hole when construction was performed.	03/04/2024 20:05	 Rock gravel and dirt entered the line through the lamp hole when construction was performed.	N			Lion creek, Arroyo Viejo creek, and Damon Slough	Stream/Creek		Creek.	None.	Other (specify below)	None.	N/A	0	Y	N												
3	3SSO18097	Active	Pajaro County Sanitation District Collection System	Pajaro County Sanitation District	893900	1.1	Certified	Tom Moss	Senior Water Resources Hydrologist		07-MAR-24	07-MAR-24	Monthly Category 3 Spill	Elkhorn Rd 300 feet north of Werner Rd	12/31/2022 14:45	12/31/2022 15:15	12/31/2022 14:45				The spill originated from a Manhole B23 located on Elkhorn Rd 300 feet north of Werner Rd.	36.87999	-121.7471	Manhole			50	While on storm patrol, County staff discovered the sewer spill.  The on-call sanitation worker arrived at 3:15 p.m. and contained the spill by placing waddles around the manhole and suctioning up the spill.	N						50	Street/Curb and Gutter (2 3); Unpaved Surface		The spill was contained within a short distance from the manhole.	Y	36.87999	-121.7471							12/31/2022 15:45	The spill volume was estimated based on the wastewater volume vacuumed from the immediate area.	The spill start and end times were based on field observations from County staff.	Debris-General; Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Polyvinyl Chloride (PVC)		40	There are no known impacts.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		While on storm patrol, County staff discovered the spill.  Heavy rainfall was infiltrating into the sewer system.  The Road Superintendent contact the on-call sanitation worker who arrived on scene at 3:15 p.m. and proceeded to contain the spill be placing waddles around the manhole and suctioning up the spill.  GreenLine was contracted to jet the sewer line and clear any blockage.  Wastewater levels began to decrease, and the overflow stopped at 3:45 p.m.  The affected area was bleached, and the waddles were removed and disposed of properly.  Cleanup was completed by 6:00 p.m.	Repaired Facilities or Replaced Defect	The sewer line was cleaned.	GreenLine was contracted to jet the sewer line and clear any blockage.    		12/31/2022 15:45	N/A		N/A	12/31/2022 15:15														N/A	N/A	N/A	N/A	N/A	N/A		N/A	N/A	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	893902	1.2	Certified	Kent Vian	Asst. Deputy Director		29-MAR-24	29-MAR-24	Monthly Category 3 Spill	NOT# 40201070425 1587 HERMES ST.	03/05/2024 10:53	03/05/2024 11:38	03/05/2024 10:52				THE SPILL ORIGINATED FROM A MANHOLE LOCATED IN THE INTERSECTION OF HERMES LN. & HERMES ST.	32.57098	-117.09787	Manhole			60	THE SEWER EXITED THE MANHOLE AND REACHED THE STORM DRAIN SYSTEM ON THE NORTHEAST & SOUTHWEST SIDES OF THE STREET AND THEN TRAVELED SOUTHWEST, WHERE CREWS WERE ABLE TO CONTAIN AND CAPTURE THE SPILL FROM THE STORM DRAIN.	Y	THE DRAINAGE CONVEYANCE SYSTEM WAS AN UNDERGROUND SYSTEM THAT RUNS PARALLEL TO HERMES ST.	58				58	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		THE SEWER EXITED THE MANHOLE AND REACHED THE STORM DRAIN SYSTEM ON THE NORTHEAST & SOUTHWEST SIDES OF THE STREET AND THEN TRAVELED SOUTHWEST, WHERE CREWS WERE ABLE TO CONTAIN AND CAPTURE THE SPILL FROM THE STORM DRAIN.	Y	32.571	-117.09791	32.57032	-117.09979					03/05/2024 11:51	VISUAL CALCULATED METHOD/DURATION AND FLOW METHOD TO CALCULATE THE SPILL VOLUME AND THE AMOUNT RECOVERED.	START TIME ESTIMATIONS WERE ASSUMED WHEN THE CONSUMER CALLED IN AND REPORTED THE SPILL TO THE CITY DISPATCH.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		53	IMPACTS OF THE SPILL WERE TO THE STREET, CURB & GUTTER AND STORM DRAIN. THE SEWER WAS WASHED DOWN AND CAPTURED USING A COMBINATION TRUCK.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	CLEAN UP- CREWS WASHED DOWN THE STREET, CURB AND GUTTER AND STORM DRAIN AND COLLECTED THE SPILL IN THE DOWNSTREAM STORMDRAIN.* MITIGATED EFFECTS OF SPILL-CREWS RELIEVED GREASE BLOCKAGE WITH THE COMBO TRUCK.	CREWS CONTAINED THE SPILL UPON ARRIVAL, RELIEVED, AND TRACKED DOWN THE FINAL DESTINATION, CLEANED UP THE AREA AND STORM DRAINS AND CCTV THE SPILL PIPE, TWO SECTIONS UP AND TWO SECTIONS DOWN TO DETERMINE THE CAUSE.	Inspected Sewer Using CCTV to Determine Cause		CREWS CONTAINED THE SPILL UPON ARRIVAL, RELIEVED AND TRACKED DOWN THE FINAL DESTINATION, CLEANED UP THE AREA AND STORM DRAINS AND CCTV THE SPILL PIPE, TWO SECTIONS UP AND TWO SECTIONS DOWN TO DETERMINE THE CAUSE.		03/06/2024 14:00	THE CCTV CREW INSPECTED THE MAIN AND DETERMINED THE CAUSE TO BE GREASE.		NO	03/06/2024 12:51														NOT APPLICABLE.	NOT KNOWN AT THIS TIME.	THE MANAGEMENT TEAM WILL HAVE A MEETING TO DISCUSS IF INCREASING THE CLEANING FREQUENCY IS NEEDED TO PREVENT A REOCCURRENCE OF SPILLS.	NOT APPLICABLE.	THE CCTV CREW INSPECTED THE MAIN AND DETERMINED THE CAUSE TO BE GREASE.	NOT APPLICABLE.	NOT APPLICABLE.	NOT APPLICABLE.	NO	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	893907	1.2	Certified	John J. Hough	San Dist. Superintendent	07-MAR-24	20-MAR-24	20-MAR-24	Category 1 Spill	339926	03/05/2024 11:46	03/05/2024 12:13	02/26/2024 09:00	03/05/2024 19:26	24-1361		See Attached Spill Map with Photos.	38.6556	-121.2733	Lateral Clean Out (Public)			1692	See Attached Spill Map with Photos	Y	See Attached Spill Map with Photos	377	0	See Attached Spill Map with Photos	1309	380	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See attached Spill Map with Photos.	Y	38.6556	-121.2733	38.6555	-121.2733	38.6291	-121.2879			03/05/2024 12:13	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Root Intrusion		Lower Lateral		Polyvinyl Chloride (PVC)		30	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified the Sacramento County Water Resources Drainage O&M and Sacramento County Environmental Management Department via Sacramento County 311. Notified the RWQCB, Golden State Water Company, City of Sacramento Fairbairn WTP.	See Attached Description of Spill Event	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		SacSewer inspected the lower lateral with CCTV on March 5, 2024. Based on the findings, SacSewer replaced the SacSewer cleanout March 11, 2024.	SacSewer replaced the SacSewer cleanout on March 11, 2024.	03/05/2024 23:00	See Attached Description of Spill Event	N			Unnamed Tributary to the American River	Stream/Creek		Portion of the stream was concrete lined with light flows, another portion was earthen lined with light flow.	No observed impacts to aquatic life.	Other (specify below)	No public access impact.	N/A	0	Y	N												
4	4SSO11423	Active	Long Beach Water Dept. CS (SSO program)	Long Beach City, Water Dept	893908	1.1	Certified	Jennifer Rojas	Senior Director 		20-MAR-24	20-MAR-24	Monthly Category 3 Spill	3800 E. 11th Street. Long Beach CA	02/24/2024 10:06	02/24/2024 10:23	02/24/2024 09:40				The spill began at city sewer manhole N12-SMH-032 and followed the street's curb and gutter into the Los Angeles County Flood Control District storm drain catch basin.	33.78063	-118.148	Manhole			165	The spill originated from city sewer manhole N12-SMH-032 and traveled along the curb and gutter of the street, eventually entering the Los Angeles County Flood Control District (LACFCD) storm drain catch basin. It was first noticed on 2/24/2024 at 9:40 am, with the estimated start time being 2/24/2024 at 09:40. The clean-up crew arrived at the scene by 10:23. They acted swiftly to contain the spill, preventing it from further spreading. The total volume of the spill exiting the system was estimated to be around 165 units.	Y	The spill left the system and traveled two blocks down the street into the conveyance system. Approximately 10 gallons reached the storm drain's catch basin. Ocean Blue Contractors fully recovered and cleaned up the spill.	10				165	Drainage Conveyance System; Street/Curb and Gutter (2 3)		The spill originated from a manhole in the city sewer system, specifically from location N12-SMH-032, with GPS coordinates 33.78063 (latitude) and -118.14800 (longitude). The wastewater flowed along the street's curb and gutter, ultimately entering the Los Angeles County Flood Control District storm drain catch basin, representing the full spread and reach of the spill. Efforts were made to contain the spill using sandbags to prevent further contamination. Please see the attached map.	Y	33.7807	-118.14607							02/24/2024 10:35	The spill volume was estimated based on the rate of overflow from the manhole and the time duration of the spill. Upon arrival, it was observed that the manhole was overflowing at a rate of 3 gallons per minute. The spill start time was estimated to be at 9:40 AM, and the spill was stopped by 10:35 AM, resulting in a total spill duration of 55 minutes. By multiplying the rate of overflow (3 gallons per minute) by the duration of the spill (55 minutes), the total spill volume was calculated to be 165 gallons. This calculation is based on direct observation and time tracking rather than relying on SCADA records or flow monitoring data.	The spill start time was estimated based on a statement from a local resident who noticed water coming out from the manhole at approximately 9:40 AM. The spill end time was determined by the time the cleaning crew arrived and managed to stop the overflow, which was recorded at 10:35 AM. These estimations rely on eyewitness statements and the cleaning crew's operational records.	Debris-General		Gravity Mainline		Vitrified Clay		99	The sewer spill reached the storm drain and gutter, posing potential environmental risks. However, the impact on the community was minimal due to prompt response and clean-up measures, ensuring the spill was swiftly removed from the street and conveyance system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		1. Spill Containment: A sewage overflow from the city sewer manhole resulted in a spill of approximately 165 gallons. Containment measures, such as deploying barriers, were implemented to prevent the spill from spreading beyond the affected area. 2. Cleanup Efforts: Ocean Blue Environmental initiated the cleanup operations for the spill on the street and in the conveyance system. A pressure washer and a vacuum truck were used to clean up the 165 gallons of sewage. 	Plan Rehabilitation or Replacement of Sewer		The corrective actions taken for the spill include immediate containment and clean-up, thorough investigation, and repair of the damage causing the spill. The containment measures were implemented promptly to prevent the spill from spreading beyond the affected area. Ocean Blue Environmental carried out cleanup operations, using a pressure washer and a vacuum truck to remove the 165 gallons of sewage from the street and conveyance system.  A CCTV inspection was conducted to identify the cause of the spill, which was found to be a damaged sewer service lateral leading to debris flowing into the main line. The damaged sewer service lateral was repaired on 3/11/2024, eliminating the cause of the spill.		02/24/2024 14:02	A post CCTV inspection was carried out on 2/28/2024 to investigate the cause of the main line stoppage. The inspection revealed that the stoppage was due to debris entering the system from a damaged sewer service lateral. In order to rectify the problem, the damaged sewer service lateral was repaired. Additionally, the pipe segment was thoroughly hydro-jetted to ensure the normal flow of wastewater, effectively resolving the issue.		There is no ongoing Investigation.	02/28/2024 10:05														The Long Beach Health Department was notified.	The sewer service lateral was repaired on 3/11/2024. We also have a 2-year Preventive Sewer Maintenance Program in place to ensure the long-term health and functionality of our sewer system.	The repairs on the sewer lateral are now complete. We will continue with the preventive maintenance program for this section of the pipe.	The damaged sewer service lateral that caused the spill has been repaired as of 3/11/2024. Moving forward, we have a comprehensive Preventive Sewer Maintenance Program in place. This program includes regular inspections and necessary repair or replacement of the sewer assets to prevent any future spills. Our focus is ensuring the long-term health and functionality of our sewer system. This approach minimizes the risk of future service disruption and environmental impact.	CCTV inspections were carried out to determine the cause and location of the debris blockage. A faulty sewer service lateral was identified and subsequently repaired. Necessary steps were taken to ensure the blockage was thoroughly cleaned.	None Planned on this segment of mainline.	No modifications have been made to the system or operating procedures following the spill. The sewer segment where the spill originated was thoroughly inspected to determine the cause of the stoppage.	We will continue following our spill response procedures for containment and clean-up efforts.	There is no ongoing Investigation.	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	892276	4.1	Amended	Kent Vian	Asst. Deputy Director	23-JAN-24	07-MAR-24	07-MAR-24	Category 1 Spill	NOT# 40201055600 337 W. 35TH ST. (SMO3)	01/22/2024 12:06	01/22/2024 12:45	01/22/2024 12:03	01/22/2024 12:41	24-0369	07-MAR-24	THE SPILL ORIGINATION HAD MULTIPLE SPILL APPEARANCE POINTS ALONG HARBOR DR.	32.65112	-117.10154	Inside Building or Structure; Manhole; Other Sewer System Structure	SM03 (SWEETWATER RIVER) OVERFLOW STRUCTURE, SAN DIEGO RIVER OVERFLOW STRUCTURE LOCATED AT THE INTERSECTION OF I-5 AND I-8.	SPILL APPEARANCE POINT FROM MANHOLES AND LATERALS. LATERALS                                    EQ# 700 W. HARBOR DR.                   10661724 1202 KETTNER BLVD.                  10885477 875 W. CEDAR ST.                       10883890 2734 LYTTON ST.                        10113494 4236 VENUS ST.                          10970758 601 PACIFIC HWY.                       10638242 780 W. G ST.                                10474394 820 W. G ST.                                10474390 925 WATERFRONT PL.                  NO EQ# 2838 KEATS ST.                            10071590 1205 PACIFIC HWY.                     10638294  MANHOLES 2710 N. HARBOR DR.                  10255357 337 W. 35TH ST. (SMO3)             10758386 W. HARBOR DR. & KETTNER BL. 10243219 680 W. HARBOR DR.                   10662200  A ST. & PACIFIC HWY                   10027964                          	2000000	THE SPILL STARTED AS FAR SOUTH AS 337 W. 35TH ST. TO AS FAR NORTH THE SAN DIEGO RIVER.	Y	THE SEWER DRAINAGE CONVEYANCE SYSTEM HEADED SOUTHWEST AND SPILLED INTO SAN DIEGO BAY.	0	0	THE DISCHARGE POINTS INTO SAN DIEGO BAY WERE NORTH OF SEAPORT VILLAGE, SOUTH SEAPORT VILLAGE AND (SMO3) 337 W. 35TH ST.	11400000	100000	Building or Structure; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface	N/A	THE SPILL STARTED AS FAR SOUTH AS 337 W. 35TH ST. TO AS FAR NORTH THE SAN DIEGO RIVER.	Y	32.651	-117.10187	32.72712	-117.18189	32.71148	-117.16912	32.74293	-117.21003	01/23/2024 01:15	SPILL VOLUME ESTIMATIONS WERE CALCULATED USING A VISUAL CALCULATED METHOD AND ENGINEERING ESTIMATE BASED UPON FLOW MODELING AND FLOW METER DATA.	METHODOLOGIES WERE USED TO ASSUME SPILL START TIME IN FLOW METER DATA AND VISUAL OBSERVATIONS OF THE SPILL.	Flow Exceeded Capacity (Separate Collection System Only); Natural Disaster (specify below); Rainfall Exceeded Design, I and I (Separate Collection System Only); Vandalism (specify below)	THE VANDALISM WAS CAUSED BY CITIZENS AND OTHER WELL-DOERS WHO OPENED COLLECTION SYSTEM MANHOLES TO RELIEVE FLOODING OF STREETS AND HOMES. THE CITY AND COUNTY OF SAN DIEGO SUFFERED A HISTORIC RAIN EVENT OF A 1,000-YEAR STORM. THE EVENT DROPPED A HISTORIC 3� OF RAIN IN THREE HOURS, CAUSING SEVERE FLOODING AND INFLOWS TO THE WASTEWATER CONVEYANCE SYSTEM, OVERWHELMING THE SYSTEM AND CAUSING OVERFLOWS.	Lower Lateral; Manhole; Other (specify below)	SYSTEM-DESIGNED OVERFLOW STRUCTURES TO RELIEVE THE SYSTEM OF SURCHARGE WHEN INFLOW EXCEEDS SYSTEM DESIGN CAPACITY.	Concrete; Polyvinyl Chloride (PVC); Vitrified Clay	N/A	60	THE IMPACTS OF THE SPILL WERE TO SURFACE WATERS.  NO OTHER ADVERSE EFFECTS NOTED AT THIS TIME.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	SPILL RESPONSE ACTIVITIES WERE TO MONITOR THE SEWER RELEASE FROM THE OVERFLOW STRUCTURES, MANHOLES AND LATERALS UNTIL THE CATASTROPHIC RAIN EVENT ENDED AND THE SURCHARGED COLLECTION SYSTEM CAUGHT UP TO CONVEY FLOW. CLEAN-UP EFFORTS WERE CONDUCTED 1/23/2024 USING BYPASS PUMPING, VACCUM TRUCKS AND RESTORATION CONTRACTORS.	Other (specify below)	WAITED FOR THE CATASTROPHIC RAIN EVENT TO END AND FOR THE SURCHARGED COLLECTION SYSTEM TO CATCH UP.	SEE TECHNICAL REPORT	SEE TECHNICAL REPORT	03/07/2024 16:15	CATASTROPHIC RAIN EVENT	Y	TO VALIDATE DATA	05/06/2024 23:59	SAN DIEGO BAY, SWEETWATER RIVER, PACIFIC OCEAN, SAN DIEGO RIVER (ASSUMED)	Ocean; River	N/A	THE PACIFIC OCEAN IS ONE OF SEVEN OCEANS THAT COVER NEARLY THREE-FOURTHS OF THE SURFACE OF THE EARTH. THE SWEETWATER RIVER IS AN INTERMITTENT RIVER WITH AN ANNUAL MEAN FLOW OF 65 CFS, A MEAN VELOCITY OF 1.42 F/S AND FLOWS FROM THE CUYAMACA MOUNTAINS TO THE SAN DIEGO BAY. THE SAN DIEGO RIVER IS A PERENNIAL RIVER WITH AN ANNUAL MEAN FLOW OF 117 CFS, A MEAN VELOCITY OF 1.45 F/S AND FLOWS FROM THE SANTA YSABEL MOUNTAINS TO THE PACIFIC OCEAN. 	NO KNOWN IMPACTS TO AQUATIC LIFE.	Public Closure	N/A	DEPARTMENT OF ENVIORNMENTAL HEALTH SERVICES	6	N	Y	SEE ATTACHED	SEE ATTACHED									TO VALIDATE DATA	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	893909	1.2	Certified	John J. Hough	San Dist. Superintendent	07-MAR-24	21-MAR-24	21-MAR-24	Category 1 Spill	339999	03/06/2024 16:29	03/06/2024 17:00	03/02/2024 08:00		-		See Attached Spill Map with Photos.	38.4842	-121.4059	Lateral Clean Out (Public)			910	See Attached Spill Map with Photos	Y	See Attached Spill Map with Photos	208	0	See Attached Spill Map with Photos	675	229	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See attached Spill Map with Photos.	Y	38.4842	-121.4059	38.4842	-121.4054	38.4799	-121.4088			03/06/2024 17:00	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Root Intrusion		Lower Lateral		Vitrified Clay		45	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified Sacramento County Water Resources Drainage O&M via Sacramento County 311.	See Attached Description of Spill Event	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		SacSewer inspected the lower lateral with CCTV on March 6, 2024. Based on the findings, SacSewer will replace the lower lateral and main line tap.	Target finish date for lower lateral replacement is , October 31, 2024.	03/06/2024 22:00	See Attached Description of Spill Event	N			Elder Creek	Stream/Creek		Concrete lined channel with moderate flow	No observed impacts to aquatic life	Other (specify below)	No public access impact.	N/A	0	N	N												
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	892276	5.1	Certified	Kent Vian	Asst. Deputy Director	23-JAN-24	07-MAR-24	07-MAR-24	Category 1 Spill	NOT# 40201055600 337 W. 35TH ST. (SMO3)	01/22/2024 12:06	01/22/2024 12:45	01/22/2024 12:03	01/22/2024 12:41	24-0369	07-MAR-24	THE SPILL ORIGINATION HAD MULTIPLE SPILL APPEARANCE POINTS ALONG HARBOR DR.	32.65112	-117.10154	Inside Building or Structure; Manhole; Other Sewer System Structure	SM03 (SWEETWATER RIVER) OVERFLOW STRUCTURE, SAN DIEGO RIVER OVERFLOW STRUCTURE LOCATED AT THE INTERSECTION OF I-5 AND I-8.	SPILL APPEARANCE POINT FROM MANHOLES AND LATERALS. LATERALS                                    EQ# 700 W. HARBOR DR.                   10661724 1202 KETTNER BLVD.                  10885477 875 W. CEDAR ST.                       10883890 2734 LYTTON ST.                        10113494 4236 VENUS ST.                          10970758 601 PACIFIC HWY.                       10638242 780 W. G ST.                                10474394 820 W. G ST.                                10474390 925 WATERFRONT PL.                  NO EQ# 2838 KEATS ST.                            10071590 1205 PACIFIC HWY.                     10638294  MANHOLES 2710 N. HARBOR DR.                  10255357 337 W. 35TH ST. (SMO3)             10758386 W. HARBOR DR. & KETTNER BL. 10243219 680 W. HARBOR DR.                   10662200  A ST. & PACIFIC HWY                   10027964                          	11400000	THE SPILL STARTED AS FAR SOUTH AS 337 W. 35TH ST. TO AS FAR NORTH THE SAN DIEGO RIVER.	Y	THE SEWER DRAINAGE CONVEYANCE SYSTEM HEADED SOUTHWEST AND SPILLED INTO SAN DIEGO BAY.	0	0	THE DISCHARGE POINTS INTO SAN DIEGO BAY WERE NORTH OF SEAPORT VILLAGE, SOUTH SEAPORT VILLAGE AND (SMO3) 337 W. 35TH ST.	11400000	100000	Building or Structure; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface	N/A	THE SPILL STARTED AS FAR SOUTH AS 337 W. 35TH ST. TO AS FAR NORTH THE SAN DIEGO RIVER.	Y	32.651	-117.10187	32.72712	-117.18189	32.71148	-117.16912	32.74293	-117.21003	01/23/2024 01:15	SPILL VOLUME ESTIMATIONS WERE CALCULATED USING A VISUAL CALCULATED METHOD AND ENGINEERING ESTIMATE BASED UPON FLOW MODELING AND FLOW METER DATA.	METHODOLOGIES WERE USED TO ASSUME SPILL START TIME IN FLOW METER DATA AND VISUAL OBSERVATIONS OF THE SPILL.	Flow Exceeded Capacity (Separate Collection System Only); Natural Disaster (specify below); Rainfall Exceeded Design, I and I (Separate Collection System Only); Vandalism (specify below)	THE VANDALISM WAS CAUSED BY CITIZENS AND OTHER WELL-DOERS WHO OPENED COLLECTION SYSTEM MANHOLES TO RELIEVE FLOODING OF STREETS AND HOMES. THE CITY AND COUNTY OF SAN DIEGO SUFFERED A HISTORIC RAIN EVENT OF A 1,000-YEAR STORM. THE EVENT DROPPED A HISTORIC 3� OF RAIN IN THREE HOURS, CAUSING SEVERE FLOODING AND INFLOWS TO THE WASTEWATER CONVEYANCE SYSTEM, OVERWHELMING THE SYSTEM AND CAUSING OVERFLOWS.	Lower Lateral; Manhole; Other (specify below)	SYSTEM-DESIGNED OVERFLOW STRUCTURES TO RELIEVE THE SYSTEM OF SURCHARGE WHEN INFLOW EXCEEDS SYSTEM DESIGN CAPACITY.	Concrete; Polyvinyl Chloride (PVC); Vitrified Clay	N/A	60	THE IMPACTS OF THE SPILL WERE TO SURFACE WATERS.  NO OTHER ADVERSE EFFECTS NOTED AT THIS TIME.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	SPILL RESPONSE ACTIVITIES WERE TO MONITOR THE SEWER RELEASE FROM THE OVERFLOW STRUCTURES, MANHOLES AND LATERALS UNTIL THE CATASTROPHIC RAIN EVENT ENDED AND THE SURCHARGED COLLECTION SYSTEM CAUGHT UP TO CONVEY FLOW. CLEAN-UP EFFORTS WERE CONDUCTED 1/23/2024 USING BYPASS PUMPING, VACCUM TRUCKS AND RESTORATION CONTRACTORS.	Other (specify below)	WAITED FOR THE CATASTROPHIC RAIN EVENT TO END AND FOR THE SURCHARGED COLLECTION SYSTEM TO CATCH UP.	SEE TECHNICAL REPORT	SEE TECHNICAL REPORT	03/07/2024 16:15	CATASTROPHIC RAIN EVENT	Y	TO VALIDATE DATA	05/06/2024 23:59	SAN DIEGO BAY, SWEETWATER RIVER, PACIFIC OCEAN, SAN DIEGO RIVER (ASSUMED)	Ocean; River	N/A	THE PACIFIC OCEAN IS ONE OF SEVEN OCEANS THAT COVER NEARLY THREE-FOURTHS OF THE SURFACE OF THE EARTH. THE SWEETWATER RIVER IS AN INTERMITTENT RIVER WITH AN ANNUAL MEAN FLOW OF 65 CFS, A MEAN VELOCITY OF 1.42 F/S AND FLOWS FROM THE CUYAMACA MOUNTAINS TO THE SAN DIEGO BAY. THE SAN DIEGO RIVER IS A PERENNIAL RIVER WITH AN ANNUAL MEAN FLOW OF 117 CFS, A MEAN VELOCITY OF 1.45 F/S AND FLOWS FROM THE SANTA YSABEL MOUNTAINS TO THE PACIFIC OCEAN. 	NO KNOWN IMPACTS TO AQUATIC LIFE.	Public Closure	N/A	DEPARTMENT OF ENVIORNMENTAL HEALTH SERVICES	6	N	Y	SEE ATTACHED	SEE ATTACHED									TO VALIDATE DATA	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	893913	1.2	Certified	Kent Vian	Asst. Deputy Director		19-MAR-24	19-MAR-24	Monthly Category 3 Spill	NOT# 40201070801 4275 WIGHTMAN	03/06/2024 14:23	03/06/2024 15:15	03/06/2024 14:23				THE SPILL ORIGINATED IN ALLEY BEHIND ADDRESS 4275 WIGHTMAN	32.74759	-117.10235	Manhole			310	THE SPILL EXITED THE MANHOLE RAN DOWN ALLEY TO WIGHTMAN ST GOING EAST  THEN TRAVALED SOUTH ON 43RD ST. AND SETTLED ON 43RD AND LANDIS	N		0				300	Street/Curb and Gutter (2 3)		THE SPILL EXITED THE MANHOLE RAN DOWN ALLEY TO WIGHTMAN ST GOING EAST  THEN TRAVALED SOUTH ON 43RD ST. AND SETTLED ON 43RD AND LANDIS	Y	32.74759	-117.10235							03/06/2024 15:25	VISUAL CALCULATED METHOD/DURATION AND FLOW METHOD TO VISUAL TO CALCULATE THE SPILL VOLUME AND THE AMOUNT RECOVERED.	START TIME ESTIMATIONS WERE ASSUMED WHEN THE CONSUMER CALLED IN AND REPORTED THE SPILL TO THE CITY DISPATCH.	Debris-General		Gravity Mainline		Vitrified Clay		40	IMPACTS OF THE SPILL WERE TO THE STREET, CURB & GUTTER.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	SET-UP CONTAINMENT, TRACKED FINAL DESTINATION, RELIEVED STOPPAGE, CLEANED-UP AREA CCTV MAINS	Inspected Sewer Using CCTV to Determine Cause		CREWS CONTAINED THE SPILL UPON ARRIVAL, RELIEVED AND CREWS TRACKED DOWN THE FINAL DESTINATION, CLEANED UP THE AREA AND CURB AND GUTTER AND CCTV THE SPILL PIPE, TWO SECTIONS UP AND TWO SECTIONS DOWN TO DETERMINE THE CAUSE.		03/06/2024 15:25	THE CCTV CREW INSPECTED THE MAIN AND DETERMINED THE CAUSE TO BE GREASE.		NO	03/06/2024 15:25														N/A	NOT KNOWN AT THIS TIME	THE MANAGEMENT TEAM WILL HAVE A MEETING TO DISCUSS IF INCREASING THE CLEANING FREQUENCY IS NEEDED TO PREVENT A REOCCURRENCE OF SPILLS.	N/A	THE CCTV CREW INSPECTED THE MAIN AND DETERMINED THE CAUSE TO BE GREASE.	N/A	N/A	N/A	NO	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	893914	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		02-APR-24	02-APR-24	Monthly Category 3 Spill	1115 South Orange Grove Avenue	03/07/2024 15:10	03/07/2024 16:20	03/07/2024 15:10				1115 South Orange Avenue Latitude: 34.054998Longitude: -118.365095	34.054998	118.365905	Gravity Mainline		None.	79	On Thursday, March 7, 2024, at 3:10 AM., the Clean Water Conveyance Division (CWCD) received a report of sewer trouble at 1115 South Orange Grove (TG 633-B4). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 5:55 PM. The cause of the blockage was attributed to Fats, Oil and Grease (FOG) accumulation. All necessary clean-up was then performed.	N	None.	0				79	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	The crew was able to establish containment and subsequently returned the entire amount to the sanitary sewer system. 	Y	34.054998	118.365095							03/07/2024 17:45	Spill flowrate and volume determination based on flowout pickhole or opening Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening0.0625inches Flowrate per pickole/opening (gpm)1gpm # of pickholes/openings1 Total flowrate (gpm)1gpm Duration of spill (minutes)155minutes Total flow (gallons)79gallons 	Spill flowrate and volume determination based on flowout pickhole or opening 	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		96	The crew was able to establish containment and subsequently returned the entire amount to the sanitary sewer system. 	N	Restored Flow; Returned All Spill to Sanitary Sewer System		A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 5:45 PM. 	Adjusted Schedule/Method of Preventive Maintenance		Pipeline Is On A Quarterly Maintenance Schedule.		03/07/2024 17:45	A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 5:45 PM. The cause of the blockage was attributed to Fats, Oil and Grease (FOG) accumulation. All necessary clean-up was then performed.		None.	03/07/2024 17:45														None At This time.	Pipeline Is On A Quarterly Maintenance Schedule.	Pipeline Is On A Quarterly Maintenance Schedule.	Pipeline Is On A Quarterly Maintenance Schedule. CCTV Revealed No Defects.	Pipeline Is On A Quarterly Maintenance Schedule. CCTV Revealed No Defects.	None At This time.	Pipeline Is On A Quarterly Maintenance Schedule. CCTV Revealed No Defects.	Pipeline Is On A Quarterly Maintenance Schedule. CCTV Revealed No Defects.	None.	
1	1SSO11491	Active	Santa Rosa City CS	Santa Rosa City Utilities Dept	893918	1.2	Certified	Ron Marincic	Utility System Superintendent		08-MAR-24	08-MAR-24	Monthly Category 3 Spill	Fulton Rd	02/26/2024 21:30	02/26/2024 21:52	02/26/2024 21:30				One appearance point.  Gravity mainline manhole.  Santa Rosa Water map page II-26-10.  MH#3.  Photos attached.	38.457	-122.76966	Manhole			270	MH cover in place.  Liquid coming from manhole and spreading across Rd.(187 gal).  83 gallons entered storm drain.  !00% captured/retrieved.  Photos attached.	Y	Drainage system MS4 municipal system owned by CSR.  Photos attached.	83				187	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Photos attached.	Y	38.457	-122.76966							02/26/2024 23:00	Area calculation.  Area Spill Estimation work Sheet used as well as volumetric site(attached)	Call date/time from customer on street.	Damage by Others Not Related to Collection System Construction/Maintenance; Other (specify below)	Photo entered.	Gravity Mainline	Construction debris from street rehab project.	Other (specify below)	AC pipe.	56	Spill was liquid, no solids.  Spread across the roadway and into the gutter/SD.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Attached documents.	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect	Worked with City inspector for enforcement of construction activity.	Documents scanned.		03/08/2024 09:46	Scanned documents		N/A	03/08/2024 10:21														N/A.	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	893919	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	08-MAR-24	11-MAR-24	11-MAR-24	Category 1 Spill	Monan Street & Ziegler Avenue, Oakland Ca	03/05/2024 08:20	03/05/2024 08:59	03/05/2024 08:18		-		Lamp-hole overflowing on the side of a road.	37.74994	-122.12623	Other (specify below)	Lamp-hole overflowing on the side of a road.		260	Lamp-hole overflowing on the side of a road flowing down to a storm drain.	Y	12  drainage system called that flows to Arroyo Viejo creek.	0	205	12  drainage system called that flows to Arroyo Viejo creek.	205	55	Drainage Conveyance System; Paved Surface		Lamp-hole overflowing on the side of a road.	Y	37.74994	-122.12623							03/05/2024 09:10	5 Gpm x 52 Min = 260 Total. 5 Gpm x 11 Min = 55 Gal recovered. = 205 gallons was lost in the storm drain that could not be recovered.	Start time was based eyewitness account. End time was based on responding crew clearing root intrusion inside the lamp hole.	Root Intrusion		Other (specify below)	Lamp Hole, root intrusion.	Other (specify below)	PE	30	Lamp-hole overflowing on the side of a road into a storm drain that flows Arroyio Viejo Creek.	N	Cleaned Up (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Staff cleaned and recovered a portion of the spill on the paved surface.	Staff cleaned and recovered a portion of the spill on the paved surface.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause	Line was added to six-month hydro high frequency maintenance program. # 1508983.	Line was added to six-month hydro high frequency maintenance program. # 1508983.	Line was added to six-month hydro high frequency maintenance program. # 1508983.	03/05/2024 12:00	CCTV inspection found root intrusion in the lamp hole to have been the cause of the overflow.	N			Arroyo Viejo Creek	Stream/Creek		Stream.	None.	Other (specify below)	None.	N/A	0	Y	N												
5S	5SSO11054	Active	South Placer Mud CS	South Placer MUD	893926	1.2	Certified	Eric Nielsen	Superintendent	08-MAR-24	15-MAR-24	15-MAR-24	Category 1 Spill	G10-002_Rocklin	03/06/2024 13:18	03/06/2024 13:46	03/06/2024 13:10		-		See Attached Spill Summary	38.77046	-121.22288	Inside Building or Structure; Lateral Clean Out (Private); Lateral Clean Out (Public)		Inside structure in sink, Private clean out, Property Line Clean Out	70	See Attached Spill Summary	Y	See Attached Spill Summary	11	0	See Attached Spill Summary	45	25	Building or Structure; Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		See attached Spill Event Summary	Y	38.77068	-121.22557							03/06/2024 13:12	See attached Spill Event Summary	See attached Spill Event Summary	Debris-wipes/Non-disposables; Other (specify below)	Low flow fixtures.  Not enough flow to carry paper downstream.	Gravity Mainline		Vitrified Clay		26	See attached Spill Event Summary	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	See attached Spill Event Summary	See attached Spill Event Summary	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	See attached Spill Event Summary	See attached Spill Event Summary	See attached Spill Event Summary	03/06/2024 18:31	See attached Spill Event Summary	N			Unnamed stream	Stream/Creek		See attached Spill Event Summary	See attached Spill Event Summary	Other (specify below)	There is no public access to the water body.	N/A	0	N	N												
2	2SSO10164	Active	Palo Alto Regional CS	Palo Alto City	893929	1.4	Certified	Anthony Meneses	WGW Operations Manager		02-APR-24	02-APR-24	Monthly Category 3 Spill	1094 Tanland Drive, Palo Alto 	02/18/2024 18:38	02/18/2024 19:40	02/18/2024 13:30				See attachment 	37.44364	-122.1205	Lateral Clean Out (Private)		Another private cleanout	455	See attachment 	N						451	Other (specify below)	Carport/Driveway	See attachments  Failure Location - 11d and 11e  End Point - 11f and 11g Spill Origin 2 (Another private cleanout) - 11h and 11i	Y	34.443835	-122.119893	37.44357	-122.12051	37.444	-122.12109			02/18/2024 21:07	see attachment for detailed calculations	Measure volume method 	Debris-Rags; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		63	Spill impacted some residents and maintenance crews from boiler room	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Contained in boiler rooms	Adjusted Schedule/Method of Preventive Maintenance	 	Event will be recorded in our records for future review, This pipe will be cleaned and inspected annually 		02/18/2024 22:37	Heavy grease, paper and rag use		This investigation has concluded	02/19/2024 15:00														Not at this time 	Not at this time 	Not at this time 	Not at this time 	Not at this time no defects	Not at this time 	N/A	This pipe will be cleaned and inspected annually to prevent further spills	This investigation has concluded	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	893931	1.3	Certified	Kent Vian	Asst. Deputy Director	08-MAR-24	29-MAR-24	29-MAR-24	Category 1 Spill	NOT# 40201071073 AT 600 MISSOURI ST.	03/08/2024 09:24	03/08/2024 10:00	03/06/2024 08:00	03/08/2024 10:54	24-1417		THE SPILL ORIGINATED FROM A DIVERSION VALVE CONNECTED TO A SEPARATE STORM DRAIN DUE TO VANDALISM IN THE DOWNSTREAM SEWER MANHOLE. CREWS FOUND A MOUND OF GRAVEL INSIDE THE MANHOLE.	32.79995	-117.25823	Other (specify below); Other Sewer System Structure	SEPARATE SEWER SYSTEM DIVERSION VALVE.		21287	THE SPILL TRAVELED WEST VIA STORM DRAIN TO AN OUTFALL LOCATED ON PACIFIC BEACH.	Y	THE STORM WATER DRAIN CONVEYANCE IS A 60  CONCRETE PIPE THAT CONVEYS STORM WATER TO AN OUTFALL LOCATED ON PACIFIC BEACH.	0	0	THE DISCHARGE POINT TO THE SURFACE WATER WAS WHERE THE STORM DRAIN ENDED, AND THE SPILL REACHED THE PACIFIC OCEAN.	21259	28	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Unpaved Surface		THE SPILL DESTINATION WAS WEST VIA A STORM DRAIN TO AN OUTFALL ON PACIFIC BEACH.	Y	32.79995	-117.25823	32.79978	-117.25855					03/08/2024 10:41	VISUAL CALCULATED METHOD/TIME AND DURATION.	THE START TIME WAS ASSUMED AT THE TIME A CONSUMER REPORTED SEEING THE OVERFLOW.	Vandalism (specify below)	CREW FOUND A DOWNSTREAM MANHOLE VANDALIZED. A LARGE PILE OF PEA-GRAVEL APPEARED TO HAVE BEEN DUMPED INSIDE THE MANHOLE.	Manhole		Polyvinyl Chloride (PVC)		7	THE IMPACTS OF THE SPILL WERE TO A SEPARATE STORM DRAIN AND THE PACIFIC OCEAN.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	THE CREWS CLEANED UP PAPER AND DEBRIS IN THE SAND AND NEAR THE OUTFALL, AS WELL AS INTRODUCED CLEAN WATER TO THE STORM DRAIN AND CAPTURED DEBRIS. THE CREWS MITIGATED THE EFFECTS OF THE SPILL BY RELIEVING A BLOCKAGE IN THE SEWER MAIN, WHICH, IN TURN, STOPPED THE SEWER FROM ENTERING THE STORM DRAIN VIA A DIVERSION VALVE.	THE CREW CONTAINED THE SEWER IN THE STORM DRAIN, RELIEVED, TRACKED THE FINAL DESTINATION, AND CLEANED UP THE AREA STORM DRAIN AND CCTV MAINS.	Inspected Sewer Using CCTV to Determine Cause		THE CREW RELIEVED A BLOCKAGE CAUSED BY VANDALISM IN THE SEWER MAIN.	NO MAJOR MILESTONES AT THIS TIME	03/08/2024 18:00	UPON ARRIVAL, THE CREW FOUND A MANHOLE THAT APPEARED TO BE VANDALIZED BY SOMEONE WHO DUMPED PEA-GRAVEL INTO THE MANHOLE.	N			PACIFIC BEACH	Ocean		The Pacific Ocean is a body of salt water extending from the Antarctic region in the south to the Arctic in the north and lying between the continents of Asia and Australia on the west and North America and South America on the east.	THERE WAS NO OBSERVED IMPACTS TO AQUATIC LIFE.	Public Closure		DEPARTMENT OF ENVIORNMENTAL HEALTH	1	N	Y	1EH-253 Pacific BeachMissouri St.32.799983-117.25873 2FM-020 Pacific BeachCrystal Pier32.7961-117.2573 3EH-253A (150 ft North) Pacific BeachMissouri St.32.800137-117.25894 4EH-253B (150 ft South) Pacific BeachMissouri St.32.799262-117.25853 5EH-570Pacific BeachDiamond32.798919-117.25835 6EH-571Pacific BeachLaw Street32.801575-117.25963 7EH-572Pacific BeachHornblend32.795339-117.25667 8EH-573Pacific BeachLoring32.804155-117.26144 	� Ammonia, and � Appropriate bacterial indicator(s) per the applicable Basin Plan water quality objectives, including one or more of the following, unless directed otherwise by the Regional Water Board: o Total Coliform Bacteria o Fecal Coliform Bacteria o E-coli o Enterococcus										
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	893934	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	10-MAR-24	11-MAR-24	11-MAR-24	Category 1 Spill	6000 Rockridge Blvd., Oakland Ca	03/09/2024 11:24	03/09/2024 11:50	03/07/2024 13:00	03/09/2024 14:00	24-1438		Spill originated from the crawl space of structure/building; it was flowing out of the structure from a vent and running down the side of the building to the sidewalk and to a separate storm drain.	37.84481	-122.24557	Inside Building or Structure			7815	Spill originated from the crawl space of structure/building; it was flowing out of the structure from a vent and running down the side of the building to the sidewalk and to a separate storm drain.	Y	Underground 21  storm line leading to Temescal creek.	0	7710	Underground 21  storm line leading to Temescal creek.	7710	105	Drainage Conveyance System that discharges to surface water; Paved Surface; Unpaved Surface		Spill originated from the crawl space of structure/building; it was flowing out of the structure from a vent and running down the side of the building to the sidewalk and to a separate storm drain.	Y	37.84481	-122.24557							03/09/2024 12:25	2,845 Min x 3 Gpm = 7,815 = Total Spill. 35 Min x 3 Gpm = 105 gallons recovered.	Start time was based on eyewitness account. End time based on the responding crew clearing the blockages.	Other (specify below); Root Intrusion	Roots and test plug. Test plug was lost by unknown sewer contractor.	Gravity Mainline		Vitrified Clay		99	Spill originated from the crawl space of structure/building; it was flowing out of the structure from a vent and running down the side of the building to the sidewalk and to a separate storm drain that flows to Temescal Creek.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Staff cleaned up surface outside of the building, and also the paved surface.	Staff cleaned up surface outside of the building, and also the paved surface.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause	Sewer line was added to a six-month high frequency preventive maintenance program.	Sewer line was added to a six-month high frequency preventive maintenance program. Work #1509280	Sewer line was added to a six-month high frequency preventive maintenance program. Work #1509280	02/09/2024 17:00	Roots and test plug blockage found in the mainline was the cause of the overflow. Test plug was lost by unknown sewer contractor.	Y	CCTV the mainline to find other potential causes of the overflow.	03/15/2024 15:00	Temescal Creek	Stream/Creek		Stream of water.	None.	Other (specify below)	None.	N/A	0	Y	N											CCTV the mainline to find other potential causes of the overflow.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	893935	1.1	Ready to Certify						Monthly Category 3 Spill	1225 Fallon Street, Oakland Ca	02/22/2024 11:00	02/22/2024 11:15	02/22/2024 12:00				Floor drain inside building/structure on the driveway in the basement.	37.79982	-122.26298	Inside Building or Structure	Floor drain inside building/structure on the driveway in the basement. The spill was contained in the basement.		138	Floor drain inside building/structure on the driveway in the basement. The spill was contained in the basement.	N						138	Building or Structure		Floor drain inside building/structure was overflowing on the driveway in the basement. The spill was contained in the basement.										02/22/2024 12:00	84'L x 11'W x .02'D x 7.48-gal = 138 gallons	Start time was based on eyewitness account. The end time was based on responding crew restoring the flow.	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Other (specify below)	PE	14	Floor drain inside building/structure was overflowing on the driveway in the basement. The spill was contained in the basement. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		The sewage was contained inside the driveway in the basement of the building, when the flow was restored in the mainline, the sewage flowed back to the sewer system through the same floor drain. Personnel from the building completed the cleanup of the spill.	Added Sewer to Preventive Maintenance Program		Mainline has been added to a 3-month high frequency hydro program, work order #1467529.		02/22/2024 13:00	CCTV report found to be FOG combined with debris-wipes and rags to have been the potential cause of the overflow. Mainline has been place on a 3-month hydro high frequency maintenance program to prevent any further overflows.		CCTV inspection found grease along with debris-wipes to had been the potential cause of the overflow.	03/05/2024 11:00														N/A	Mainline has been added to a 3-month high frequency hydro program, work order #1467529.	Mainline has been added to a 3-month high frequency hydro program, work order #1467529.	N/A	CCTV inspection found grease along with debris-wipes to had been the potential cause of the overflow.	N/A	Mainline has been added to a 3-month high frequency hydro program, work order #1467529.	Mainline has been added to a 3-month high frequency hydro program, work order #1467529.	CCTV inspection found grease along with debris-wipes to had been the potential cause of the overflow.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	893936	1.1	Certified	Ameal McLaurin	Sewer Supervisor 2		11-MAR-24	11-MAR-24	Monthly Category 3 Spill	1225 Fallon Street, Oakland Ca	02/22/2024 11:00	02/22/2024 11:15	02/22/2024 12:00				Floor drain inside building/structure on the driveway in the basement.	37.79982	-122.26298	Inside Building or Structure	Floor drain inside building/structure on the driveway in the basement. The spill was contained in the basement.		138	Floor drain inside building/structure on the driveway in the basement. The spill was contained in the basement.	N						138	Building or Structure		Floor drain inside building/structure was overflowing on the driveway in the basement. The spill was contained in the basement.										02/22/2024 12:00	84'L x 11'W x .02'D x 7.48-gal = 138 gallons	Start time was based on eyewitness account. The end time was based on responding crew restoring the flow.	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Other (specify below)	PE	14	Floor drain inside building/structure was overflowing on the driveway in the basement. The spill was contained in the basement. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		The sewage was contained inside the driveway in the basement of the building, when the flow was restored in the mainline, the sewage flowed back to the sewer system through the same floor drain. Personnel from the building completed the cleanup of the spill.	Added Sewer to Preventive Maintenance Program		Mainline has been added to a 3-month high frequency hydro program, work order #1467529.		02/22/2024 13:00	CCTV report found to be FOG combined with debris-wipes and rags to have been the potential cause of the overflow. Mainline has been place on a 3-month hydro high frequency maintenance program to prevent any further overflows.		CCTV inspection found grease along with debris-wipes to had been the potential cause of the overflow.	03/05/2024 11:00														N/A	Mainline has been added to a 3-month high frequency hydro program, work order #1467529.	Mainline has been added to a 3-month high frequency hydro program, work order #1467529.	N/A	CCTV inspection found grease along with debris-wipes to had been the potential cause of the overflow.	N/A	Mainline has been added to a 3-month high frequency hydro program, work order #1467529.	Mainline has been added to a 3-month high frequency hydro program, work order #1467529.	CCTV inspection found grease along with debris-wipes to had been the potential cause of the overflow.	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	893937	1.1	Certified	Kent Vian	Asst. Deputy Director		19-MAR-24	19-MAR-24	Monthly Category 3 Spill	NOT# 40201071067 AFTON RD & DUBONNET ST.	03/07/2024 15:41	03/07/2024 16:10	03/07/2024 15:41				SPILL ORIGINATED FROM MANHOLE LOCATED JUST EAST OF AFTON AND DUBONNET ST. AND RAN DOWN SOUTH ON AFTON RD WHERE IT SETTLED ON THE CURB AND GUTTER. 	32.80783	-117.14448	Manhole			118	SPILL ORIGINATED FROM MANHOLE LOCATED JUST EAST OF AFTON AND DUBONNET ST. AND RAN DOWN SOUTH ON AFTON RD WHERE IT SETTLED ON THE CURB AND GUTTER. 	N		0				108	Paved Surface; Street/Curb and Gutter (2 3)	N/A	SPILL ORIGINATED FROM MANHOLE LOCATED JUST EAST OF AFTON AND DUBONNET ST. AND RAN DOWN SOUTH ON AFTON RD WHERE IT SETTLED ON THE CURB AND GUTTER. 	Y	32.80783	-117.14448							03/07/2024 16:40	VISUAL CALCULATED METHOD/DURATION AND FLOW METHOD TO CALCULATE THE SPILL VOLUME AND THE VISUAL AMOUNT RECOVERED.	START TIME ESTIMATIONS WERE ASSUMED WHEN THE CONSUMER  CALLED IN AND REPORTED THE SPILL TO THE CITY DISPATCH.	Debris-General		Gravity Mainline		Polyvinyl Chloride (PVC)		68	IMPACTS OF THE SPILL WERE TO THE STREET, CURB & GUTTER.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		SET-UP CONTAINMENT, TRACKED FINAL DESTINATION, RELIEVED  STOPPAGE, CLEANED-UP AREA CCTV MAINS.	Inspected Sewer Using CCTV to Determine Cause		CREWS CONTAINED THE SPILL UPON ARRIVAL, RELIEVED AND  TRACKED DOWN THE FINAL DESTINATION, CLEANED UP THE AREA  AND CURB AND GUTTER AND CCTV THE SPILL PIPE, TWO SECTIONS UP AND TWO SECTIONS DOWN TO DETERMINE THE CAUSE.		03/07/2024 16:40	THE CCTV CREW INSPECTED THE MAIN AND DETERMINED THE CAUSE OF THE SPILL TO BE ROOTS.		NO	03/07/2024 16:01														N/A	NOT KNOWN AT THIS TIME.	THE MANAGEMENT TEAM WILL HAVE A MEETING TO DISCUSS IF  INCREASING THE CLEANING FREQUENCY IS NEEDED TO PREVENT THE REOCCURRENCE OF SPILLS.	N/A	THE CCTV CREW INSPECTED THE MAIN AND DETERMINED THE CAUSE THE SPILL TO BE ROOTS.	N/A	N/A	N/A	NO	
4	4SSO10439	Active	Torrance City CS	Torrance City	893948	1.4	Certified	Michael Woolsey	Public Works Supervisor	11-MAR-24	12-MAR-24	12-MAR-24	Category 1 Spill	Camino de Campo/Via Linda Vista	03/08/2024 18:27	03/08/2024 20:00	03/08/2024 18:00	03/08/2024 20:43	24-1432		Intersection of Camino de Campo and Via Linda Vista.	33.81461	-118.38374	Manhole			3000	Spill entered catch basin on Camino de Campo.	Y	Storm drain enters the Pacific Ocean at Torrance Beach.	1000	0	Spill entered Pacific Ocean.	2000	1000	Drainage Conveyance System		Pacific Ocean	N									03/08/2024 20:07	BMP VISUAL pickhole method	Crew out on scene	Debris-Rags; Root Intrusion		Gravity Mainline		Vitrified Clay		50	public hazard	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow		Restored flow by hydrojetting. Wash down and vactor at storm drain.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		CCTV, used warthog to remove roots , cctv again and roots were removed	Restored flow, pipe free of roots	03/08/2024 13:26	Crew on scene determined roots and rags caused spill.	N			Pacific Ocean	Ocean		Ocean	n/a	Other (specify below)	n/a	n/a	0	N	N												
2	2SSO10198	Active	Stege SD CS	Stege Sanitary District	893950	1.4	Certified	REX DELIZO	DISTRICT MANAGER	11-MAR-24	11-MAR-24	11-MAR-24	Category 1 Spill	838 SEAVIEW DRIVE, EL CERRITO, CA 94530	03/08/2024 10:53	03/08/2024 11:30	03/08/2024 10:30	03/08/2024 15:30	24-1426		MANHOLE	37.91497	-122.29221	Manhole			765	CONCRETE STORM DRAIN CHANNEL	Y	CONCRETE STORM DRAIN CHANNEL	34	731	CONCRETE STORM DRAIN CHANNEL	731	34	Drainage Conveyance System		CONCRETE STORM DRAIN CHANNEL	Y	37.91497	-122.29221							03/08/2024 12:20	COUNTED NUMBER OF HOMES UPSTREAM OF SPILL AND MULTIPLIED ESTIMATED FLOW BY THE DURATION OF THE SPILL.  AREA MULTIPLIED BY DEPTH TO CALCULATE VOLUME OF SPILL RECOVERED.	INTERVIEW OF PROPERTY OWNER THAT REPORTED THE SPILL.	Debris-General		Gravity Mainline		Other (specify below)	HDPE	20	DISCHARGED INTO ACTIVE STORM DRAIN	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		.	Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect		WILL REPLACE UPSTREAM SEWER LINES THAT CONTRIBUTED TO THE DEBRIS	NO LATER THAN END OF NEXT FISCAL YEAR	03/08/2024 15:30	DEBRIS FROM UPSTREAM SEWER LINES 	Y	TO DETERMINE THE EXTENT OF UPSTREAM SEWER LINES THAT CONTRIBUTED TO THE DEBRIS	06/30/2024 12:00	ACTIVE STORM DRAIN	Other (specify below)	STORM DRAIN	STORM DRAIN	NONE	Other (specify below)	NONE	NONE	0	N	N											TO DETERMINE THE EXTENT OF UPSTREAM SEWER LINES THAT CONTRIBUTED TO THE DEBRIS	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	893957	1.2	Certified	Kent Vian	Asst. Deputy Director		29-MAR-24	29-MAR-24	Monthly Category 3 Spill	NOT# 40201070058 4776 ALLENHURST PL.	03/05/2024 06:49	03/05/2024 07:05	03/05/2024 06:46				THERE WERE 2 SPILL APPEARANCE POINTS. THE SPILL ORIGINATED IN THE FRONT OF 4776 ALLENHURST PL. FROM A MANHOLE. THE SECOND SPILL APPEARANCE POINT WAS FROM A CLEANOUT OF 4764 ALLENHURST PL.	32.83041	-117.18128	Lateral Clean Out (Private); Manhole			68	THE SPILL BOUNDARY EXTENT WAS INTO ACUNA CANYON, WHERE THE SPILL SETTLED.	Y	THE DRAINAGE CONVEYANCE SYSTEM WAS AN UNDERGROUND 18  RCP THAT WAS INSTALLED IN 1971.	0				20	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		THE SPILL ORIGINATED IN FRONT OF 4776 ALLENHURST PL., TRAVELLED THROUGH A STORM DRAIN AND SETTLED INTO ACUNA CANYON.	Y	32.83049	-117.18135	32.83065	-117.18162					03/05/2024 07:20	VISUAL CALCULATED METHOD/FLOW & DURATION METHOD.	THE SPILL START TIME WAS ASSUMED WHEN THE CONSUMER VISUALLY SAW THE SPILL AND REPORTED IT TO DISPATCH.	Root Intrusion		Gravity Mainline		Vitrified Clay		65	THE IMPACTS OF THE SPILL WERE TO A SIDEWALK, CURB & GUTTER, STORM DRAIN, STREET AND A CANYON.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	CLEAN UP- CREWS WASHED DOWN THE STREET, CURB AND GUTTER AND STORM DRAIN	THE CREWS IMMEDIATELY CONTAINED THE SPILL FROM ENTERING THE STORM DRAIN WHILE ANOTHER CREW RELIEVED THE BLOCKAGE. AFTER THE SPILL STOPPED, THE CREW WASHED DOWN AND CLEANED UP THE AFFECTED AREA WITH A COMBINATION TRUCK.	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		THE SPILL CORRECTIVE ACTION WAS RELIEVING THE ROOT BLOCKAGE WITH A COMBINATION TRUCK.		03/05/2024 14:00	THE CAUSE OF THE SPILL WAS DUE TO A ROOT BLOCKAGE INSIDE THE SEWER MAIN.		NO	03/21/2024 07:21														NOT APPLICABLE	NO MODIFICATIONS AT THIS TIME.	THERE ARE NO SCHEDULE ADJUSTMENTS AT THIS TIME.	THERE ARE NO SCHEDULE REHABILITATIONS AT THIS TIME.	CREWS INSPECTED SEWER MAINS TO DETERMINE THE CAUSE.	NONE	N/A	N/A	NO	
3	3SSO10340	Active	Gilroy CS	Gilroy City	893976	1.3	Certified	Matthew Jones	Deputy Director of Public Works	12-MAR-24	25-MAR-24	25-MAR-24	Category 2 Spill	Luchessa Ave x Cimino St	03/10/2024 10:39	03/10/2024 13:20	03/06/2024 12:00	03/10/2024 15:45	24-1444		Spill occurred from a covered manhole and presented thru at the curb line were the asphalt meets the concrete  	36.98926	121.58288	Manhole; Other (specify below)	around curb line and asphalt		32670	Spill occurred from covered manhole and thru asphalt were it meets concrete curb line. Spill flowed along the curb 271' and entered storm drain that flows to a retention pond	Y	drainage system is a catch basin/inlet that flows to a retention pond That does Not connect/ feed into a waterway	2000	30670			2000	Drainage Conveyance System; Other (specify below); Street/Curb and Gutter (2 3)	Retention pond that does not connect to/feed into a waterway	point of spill occurred at covered MH #3794 and flowed 271ft east and entered into storm inlet 3744 that flows to a retention pond.	Y	36.98926	121.58288							03/10/2024 14:45	Spill was calculated using duration/flow rate calculation based on what crew witnessed and reporting parties statements	Assumptions were made based on crew observations at time of arrival and information provided by RP's statements.  Rp witnessed 5GPM from when spill started until city was notified, crew witnessed 25GPM at arrival from time of start to clearing blockage. RP works in the industry for another municipality and has experience and training in sewer overflow estimations.   Therefore flow was based on both flow rates and duration.	Debris-General		Manhole		Polyvinyl Chloride (PVC)		10	impact of spill was having sewage in curb line and catch basin causing both a inconvenience to the public in the area and hazard until crews responded to clear and clean the area	N	Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	cleaned cub and gutter were spill occurred 	spill response consisted of damming the catch basin, clearing blockage with jetter, and flushing while vacuuming debris with vactor/combo truck 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	corrective action included clearing blockage, cleaning curb and gutter were spill occurred and cctv the segment to inspect for any issues 	Will cctv to inspect lines for any defects and make sure that this was a isolated incident and make any repairs needed if are discovered during investigation.	our scheduled milestones consist of videoing segment at both 3 months and 6 months to make sure segment is still clear of any debris as to not have any repeat blockages.	03/10/2024 14:45	investigation findings found to be no defects in segment and that blockage of debris seems to be a isolated incident 	Y	although we believe this to be a isolated incident the reason for ongoing investigation is to use our due diligence and give us time to video main to confirm or eliminate any chance of further issues getting a visual of our inventory 	03/15/2024 16:00										N												although we believe this to be a isolated incident the reason for ongoing investigation is to use our due diligence and give us time to video main to confirm or eliminate any chance of further issues getting a visual of our inventory 	
2	2SSO18110	Active	Treasure Island Development Authority CS	Treasure Island Development Authority	893994	1.2	Certified	Robert Beck	Treasure Island Director	13-MAR-24	13-MAR-24	13-MAR-24	Category 1 Spill	Northgate Pump Station Spill	03/07/2024 07:45	03/07/2024 10:00	03/07/2024 07:40	03/07/2024 12:25	24-1403	13-MAR-24	2 manholes on Northgate Rd North West of Navy Rd spill west into 2 tie together catch basins then goes out to the bay. 	37.81378	-122.362497	Manhole			2052	2 manholes on Northgate Rd North West of Navy Rd spill west into 2 tie together catch basins then goes out to the bay. 	Y	spill went into 2 catch basins then goes out to the bay	30	0	n/a	0	30	Drainage Conveyance System; Surface Water		see attached spill package report for description	Y	37.81378	-122.362497							03/07/2024 10:38	spill volume estimated via area calculation 	spill volume estimated via area calculation, please see spill packet for detail calculations	Pump Station Failure - Controls; Pump Station Failure - Power		Pump Station - Controls; Pump Station - Power		Vitrified Clay		10	no impact to property or business	N	Cleaned Up (specify below); Returned Portion of Spill to Sanitary Sewer System		due to tripped circuit breaker to the pump, the operator manually reset the breaker to restart the pump. the spill stopped in 4 minutes after the pump started running. vacuum truck was setup at the last catch basin to the bay for cleanup containment	Adjusted Schedule/Method of Preventive Maintenance		frequent checks on the power and circuit breaker to the pumps	n/a	03/07/2024 11:05	due to tripped circuit breaker to the pump, the operator manually reset the breaker to restart the pump	N			SF Bay 	Ocean		SF Bay	n/a	Other (specify below)	no impact	n/a	0	N	N												
2	2SSO10212	Active	Vallejo Sfcd CS	Vallejo Flood & Wastewater District (formerly Vallejo San & Flood Control District)	894002	1.2	Certified	Justin Keating	Director of Field Operations	13-MAR-24	22-MAR-24	22-MAR-24	Category 2 Spill	615 Porter St	03/10/2024 13:40	03/10/2024 14:10	03/10/2024 12:00		-		Sanitary sewer overflowed from manhole in street.	38.08704	-122.24379	Manhole			3500	Sewer spilled from sanitary manhole into nearby storm drain system.	Y	Spill reach local neighborhood drainage system entering into standard street drain inlet and into underground network of drainage pipe.	3500	0			3500	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Spill reached separate storm drain storm drain system. Did not discharge to surface waters.	Y	38.08584	-122.24689							03/10/2024 14:20	Duration and flow rate. 25 GPM x 140 Minutes = 3500 Gallons	Spill was originally reported to Police Department at 12:30. They reported issue to City Water Department who investigated the issue and forwarded to VFWD (District) at 13:40. District staff contacted City Water Department and got times issue was reported. Due to volume recovered from storm drain, an estimation was made that spill would have started at the 12:00 timeframe.	Debris-Rags; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		66	Spill in street, curb/gutter, and separate storm drain system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Washed down street, curb/gutter. hydro jetted and vacuum cleaned multiple segments of storm drain system. vacuum cleaned all water from storm drain system.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		Existing preventative maintenance schedule frequency increased immediately. Follow CCTV completed. This area is already identified for CIP rehabilitation. 	PM schedule frequency increase: Complete CCTV Inspection: Complete CIP: In process	03/10/2024 16:20	Spill response crew identified paper/rags in downstream sewer manhole when cleared blockage. CCTV investigation found grease deposits that could have contributed to rag build up.	N												N													
8	8SSO10565	Active	Corona City CS	Corona City DWP	894007	1.2	Certified	Aftab Hussain	Maintenance Manager		19-MAR-24	19-MAR-24	Monthly Category 3 Spill	717, 719, and 723 Circle City Dr.	02/27/2024 13:07	02/27/2024 13:19	02/27/2024 12:54				Sewer line blocked near 903 Circle City Dr. Spill exited the system and was contained within the properties of 717, 719, and 723 Circle City Dr.	33.87298	-117.55822	Inside Building or Structure		Spill exited the system and was contained within the homes of 717, 719, and 723 Circle City Dr.	600	Photographs attached. Spill was contained within the properties of 717, 719, and 723 Circle City Dr.	N						600	Building or Structure		Spill was contained within the properties of 717, 719, and 723 Circle City Dr.	Y	33.87298	-117.55822	33.87298	-117.55839	33.87298	-117.55868			02/27/2024 14:05	Visual observation of spill contained within structures and initial call to Fire Department dispatch.	Spill time was the initial call reported to the Fire Department dispatch. Spill end time was the time the line was unblocked. 	Debris-General; Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		27	Spill exited system and was contained within the homes of 717, 719, and 723 Circle City Dr. 723 Circle City was most impacted (living room, bed, bath, heating ducts) by the spill. Moderate impact (bathroom and foyer) to 717 Circle City and minimal impact (tub) to 719 Circle City Dr. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Spill contained within structures. Vactor trucks jetted and cleaned the main after the blockage was cleared. Vacuumed all rock, grease, and debris. Cleaned roots from system.	Inspected Sewer Using CCTV to Determine Cause		CCTV and additional cleaning on 2/29/24 and 3/4/24. Will check line in 90 days to determine if line needs to be placed on schedule. 		02/27/2024 15:30	Spill exited system and was contained within the properties of 717, 719, and 723 Circle City Dr. Vactor trucks cleaned the main once blockage was cleared. Rock, grease, and debris were vacuumed from the system. Following CCTV inspection, root intrusion was identified in the line and was cleared. 		No ongoing investigation. 	02/29/2024 18:00														NA	Line to be inspected in 90 days to determine if should be placed on an accelerated schedule.	Pending after 90 day inspection.	Pending after 90 day inspection.	Line was inspected. Follow-up inspection on the line after 90 days.	NA	Attached.	No current spill response modifications.	No ongoing investigation. 	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	894035	1.2	Certified	John J. Hough	San Dist. Superintendent	15-MAR-24	26-MAR-24	26-MAR-24	Category 1 Spill	340371	03/14/2024 18:50	03/14/2024 19:21	03/04/2024 15:00	03/14/2024 22:24	24-1560		See Attached Spill map with Photos.	38.5082	-121.4111	Lateral Clean Out (Public)			978	See Attached Spill Map with Photos	Y	See Attached Spill map with Photos.	152	0	See Attached Spill map with Photos.	807	169	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See attached Spill Map with Photos.	Y	38.5082	-121.4111	38.5082	-121.4115	38.5033	-121.4157			03/14/2024 19:21	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Root Intrusion		Lower Lateral		Vitrified Clay		51	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified the City of Sacramento and Sacramento County Environmental Management Department.	See Attached Description of Spill Event	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		SacSewer inspected the lower lateral with CCTV on March 14, 2024. Based on the findings, SacSewer will replace the lower lateral.	Target finish date for lower lateral replacement is April 26, 2024.	03/14/2024 23:00	See Attached Description of Spill Event	N			Morrison Creek	Stream/Creek		Concrete lined channel with scattered puddles of stagnant water.	No observed impacts on aquatic life	Other (specify below)	No public access impact.	N/A	0	N	N												
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	894036	1.2	Certified	John J. Hough	San Dist. Superintendent	17-MAR-24	27-MAR-24	27-MAR-24	Category 1 Spill	340428	03/16/2024 17:26	03/16/2024 17:50	03/16/2024 15:00		-		See Attached Spill map with Photos.	38.622	-121.3809	Manhole			594	See Attached Spill Map with Photos	Y	See Attached Spill Map with Photos	0	0	See Attached Spill Map with Photos	584	594	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water		See attached Spill Map with Photos.	Y	38.622	-121.3809	38.6219	-121.3809	38.6223	-121.3814	38.6142	-121.4016	03/16/2024 19:30	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Debris from Lateral		Gravity Mainline		Vitrified Clay		70	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	Notified Sacramento County Department of Water Resources Drainage O&M.	See Attached Description of Spill Event	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		SacSewer inspected the main line with CCTV on March 20, 2024, and replaced the broken main line tap on March 20, 2024.	SacSewer repaired the lateral main line tap on March 20, 2024.	03/17/2024 09:20	See Attached Description of Spill Event	N			Chicken Ranch Slough	Slough		Unlined channel with stagnant flow.	No observed impacts to aquatic life	Other (specify below)	No public access impact.	N/A	0	N	N												
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	894037	1.2	Certified	John J. Hough	San Dist. Superintendent	17-MAR-24	26-MAR-24	26-MAR-24	Category 1 Spill	340290	03/13/2024 20:46	03/13/2024 21:21	03/13/2024 15:00	03/14/2024 09:38	24-1544		See Attached Spill Map with Photos.	38.626	-121.497	Manhole		2 Private Manholes	1347	See Attached Spill Map with Photos.	Y	See Attached Spill Map with Photos.	11	0	See Attached Spill Map with Photos.	1311	36	Drainage Conveyance System that discharges to surface water; Paved Surface; Surface Water		See attached Spill Map with Photos.	Y	38.62601	-121.49701	38.6256	-121.49627	38.62789	-121.51003	38.62835	-121.51151	03/13/2024 23:15	See Attached Spill Volume Estimation.	See Attached Spill Volume Estimation.	Root Intrusion		Lower Lateral		Vitrified Clay		43	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified the City of Sacramento and Sacramento County Environmental Management Division.	See Attached Description of Spill Event.	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		SacSewer inspected the lower lateral with CCTV on March 14, 2024. Based on the findings, SacSewer will replace the lower lateral cleanout.	Target finish date for lower lateral cleanout replacement is March 28, 2024.	03/14/2024 11:00	See Attached Description of Spill Event.	N			East Drainage Canal	Other (specify below)	Drainage Canal	The drainage canal is a large water body with heavy flow.	No observed impacts to aquatic life.	Other (specify below)	No public access impacts.	N/A	0	N	N												
5S	5SSO10901-C	Active	City of Sacramento Combined CS	Sacramento City	894042	1.3	Certified	Kevin Guerra	Superintendent	18-MAR-24	26-MAR-24	26-MAR-24	Category 1 Spill	1210 Front Street	03/16/2024 22:44	03/16/2024 23:27	03/16/2024 22:25	03/17/2024 11:35	24-1598		The Spill originated from a pipe that is used to convey sewage from a ship in Old Sacramento to the sewer collection system. The coupling was damaged and when the ship discharged the wastewater went into the river.	38.58112	-121.50707	Lower Lateral (Public)			400	The spill went directly into the Sacramento River, the spill was not active when we arrived there were no boundaries to measure.	N		0	0	There is a picture of the coupling that was broke and where the wastewater was pumped into the river.	400	0	Surface Water		The spill took place under the boardwalk along the bank of the Sacramento River. A fitting at the sea wall on the levee was damaged due to vandalism. The spill went directly into the river.	Y	38.58133	-121.50699							03/17/2024 11:18	The spill was calculated using what came from a ship the Horn Blower  when they discharged their wastewater tanks.	The spill had the same appearance point as another Category one that happened in June of 2023. The crew of the ship now checks the seawall regularly to make sure there are no issues. They inspected the spill location the night before, and no issues were found. On the evening of this spill, they noticed the water going into the river at the wall. They were unable to turn their pumps off, and they discharged what was in the tank, it was estimated to be 400 gallons.	Vandalism (specify below)	There have been unhoused climbing down onto the platform to use the area to live in. We believe they damaged the coupling by standing on the piping when gaining access to the platform.	Lower Lateral		Other (specify below)	The material that failed was a Fernco Coupling, the band was removed and caused the coupling to come loose.	1	There were no impacts to the area or businesses.	N	Other Enforcement Agency Notified; Property Owner Notified; Restored Flow		We were unable to contain the spill, by the time we arrived on site it was in the river. We went onto the platform and inspected the river bank for evidence or debris that could be collected, we found nothing that we could recover.	Other (specify below); Repaired Facilities or Replaced Defect	Facilities has a weekly work order to check the platform where the failure occurred.	We have placed a shielded coupling at the seawall so that the bands cannot be removed, Also City Facilities who is responsible for this piping and platform have created a weekly inspection that has a work order to document it is completing these inspections. Also a steel bar with locks has been placed on the hatch that the unhoused have been using to gain access to the platform.	All Work has been completed weekly inspections will take place starting immediately.	03/17/2024 11:35	We determined that vandalism was the cause of the spill. We used witness statements to narrow down the time frame and what had been observed on the platform just before the spill occurred.	N			Sacramento River	River		The water body is a river that runs through the City of Sacramento. The water levels are elevated at this time, and water flow is moving rapidly.	None	Other (specify below)	There no impacts.	N/A	0	N	N												
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	894043	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	18-MAR-24	20-MAR-24	20-MAR-24	Category 1 Spill	4521 San Carlos Avenue, Oakland Ca	03/15/2024 18:47	03/15/2024 19:30	03/15/2024 13:00		-		Lateral clean out (private) overflowing in driveway in front of the property.	37.77757	-122.20686	Lateral Clean Out (Private)			900	Lateral clean out (private) overflowing in driveway in front of the property, flowing to next door property through the fence, then flowing down to sidewalk, gutter and finally entering in separate storm drain.	Y	Stream called 54th Ave, Peralta, Courtland, and Seminary creeks.	0	696	Stream called 54th Ave, Peralta, Courtland, and Seminary creeks.	696	169	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		Lateral clean out (private) overflowing in driveway in front of the property, flowing to next door property through the fence, then flowing down to sidewalk, gutter and finally entering in separate storm drain.	Y	37.77757	-122.20686							03/15/2024 20:30	450 min x 2 Gpm = 900 gallons Total Spill. Captured: Driveway 15' L x 5' W x .04'D x 7.48 = 22 Gallons 10' L x 10' x .04' D x 7.48 Gallons = 29 Gallons Walkway: 120' L x 5' W x .01' D x 7.48 = 44 Gallons Walkway and gutter: 250 L' x 2' W x .02' D x 7.48 = 74 Gallons Lost spill on unpaved surface on playground: 20' L x 12' W x .02' D x 7.48 = 35 Gallons. Captured: 22 + 29 + 44 + 74 = 169 Gallons. Lost in storm drain: 900 - 204 = 696	State time was based on eyewitness account. End time waws based on responding sewer crew restoring the flow.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		99	Lateral clean out (private) overflowing in driveway in front of the property, flowing to next door property through the fence, then flowing down to sidewalk, gutter and finally entering in separate storm drain that leads to Courtland Creek.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Sewer staff cleaned the paved surface and recovered a portion of the spill.	Sewer staff cleaned the paved surface and recovered a portion of the spill.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Mainline has been added to six-month high frequence maintenance program. Work # 1511191.	Mainline has been added to six-month high frequence maintenance program. Work # 1511191.	03/18/2024 10:45	CCTV inspection root intrusion to had been the cause of the overflow.	N			54th avenue,Peralta, Courtland, Seminary Creek	Stream/Creek		Stream.	None.	Other (specify below)	None.	N/A	0	Y	N												
2	2SSO10111	Active	Mountain View City CS	Mountain View City	894045	1.1	Certified	Mike Vasquez	Utilities Services Manager		25-MAR-24	25-MAR-24	Monthly Category 3 Spill	2460 ELKA AVE	03/17/2024 12:24	03/17/2024 12:50	03/17/2024 12:05				GPS coordinates of the system location where the spill originated: 37.41055 & -122.10059 sewer manhole E2-029 (2460 Elka Ave)	37.41055	-122.10059	Manhole	n/a	n/a	490	CMV sewer mainline spill located at sewer manhole #E2-029 near 2460 Elka Ave. (Blockage occurred between upstream manhole - E2-029 and downstream manhole #E2- 027 - 226ft). Blockage caused by roots was broke and cleared at 12:54 pm (205ft. from downstream manhole #E2- 027). 	Y	After sewer main blockage was cleared, crew started to ammonia test downstream storm manholes.  VacCon 2807 set up at storm manhole #E2-008 (furthest storm manhole from sewer main spill to have positive reading on ammonia test strip). Crew also setup VacCon 2808 on storm manhole #E2-002 (downstream of storm manhole E2-008) (Negative reading on ammonia test strip) and immediately started vacuuming & recovering sewage. Both VacCon's leaped frog each-other moving upstream (toward spill location) while flushing and cleaning storm system & recovering sewage spill. Crew washed down street, curb, gutter & DI's. ALL SEWAGE Recovered. 1591 ft of storm main cleaned, vacuumed & flushed. Inspected and cleaned DI's (E2-031 & E2-033). Inspected and cleaned storm manholes - E2-029 / E2-066 / E2-050 / E2-008 / E2-006 & E2-002. 	490				490	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)	n/a	Sewer spill entered storm DI #'s E2-031 & E2-033. Crew washed down street, curb, gutter & DI's. ALL SEWAGE Recovered. 1591 ft of storm main cleaned, vacuumed & flushed. Inspected and cleaned DI's (E2-031 & E2-033). Inspected and cleaned storm manholes - E2-029 / E2-066 / E2-050 / E2-008 / E2-006 & E2-002.    	Y	37.41078	-122.10095	37.41077	-122.10279					03/17/2024 16:50	CMV determined spill start time was at 12:05 pm after talking with reporting party (Carl) and residents at 2460 & 2463 Elka. Reporting party noticed spill at 12:10pm and residents at 2463 Elka were outside at 12pm and did not see any liquid in curb and gutter. Discharge rate of 10 gallons per minute from sanitary sewer manhole # E2-029 (12:05pm - 12:54pm = 49 minutes x 10 gallons per minute = 490 gallons spilled and recovered)  	Spill volume methodology visual estimate. CAT 3 spill full recovery	Other (specify below); Root Intrusion	non flushable wipes and debris	Manhole	n/a	Vitrified Clay	n/a	70	No impact to traffic or to residents. 	N	Returned All Spill to Sanitary Sewer System	n/a	After sewer main blockage was cleared, crew started to ammonia test downstream storm manholes.  VacCon 2807 set up at storm manhole #E2-008 (furthest storm manhole from sewer main spill to have positive reading on ammonia test strip). Crew also setup VacCon 2808 on storm manhole #E2-002 (downstream of storm manhole E2-008) (Negative reading on ammonia test strip) and immediately started vacuuming & recovering sewage. Both VacCon's leaped frog each-other moving upstream (toward spill location) while flushing and cleaning storm system & recovering sewage spill. Crew washed down street, curb, gutter & DI's. ALL SEWAGE Recovered. 1591 ft of storm main cleaned, vacuumed & flushed. Inspected and cleaned DI's (E2-031 & E2-033). Inspected and cleaned storm manholes - E2-029 / E2-066 / E2-050 / E2-008 / E2-006 & E2-002. 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	CMV will check manhole E2-029 bi-weekly for the next 6 weeks and determine if (E2-029-E2-027 will be added to a preventive maintenance program )	CMV will check manhole E2-029 bi-weekly for the next 6 weeks and determine if (E2-029-E2-027 will be added to a preventive maintenance program)		03/17/2024 16:50	Non-flushable wipes / Roots / debris		CMV will inspect bi-weekly thru 4/28/24. CMV will check manhole E2-029 bi-weekly for the next 6 weeks and determine if (E2-029-E2-027 will be added to a preventive maintenance program)	03/19/2024 08:30														n/a	CMV will check manhole E2-029 bi-weekly for the next 6 weeks and determine if (E2-029-E2-027 will be added to a preventive maintenance program )	CMV will check manhole E2-029 bi-weekly for the next 6 weeks and determine if (E2-029-E2-027 will be added to a preventive maintenance program )	n/a	CMV will inspect bi-weekly thru 4/28/24. CMV will check manhole E2-029 bi-weekly for the next 6 weeks and determine if (E2-029-E2-027 will be added to a preventive maintenance program )	n/a	CMV will inspect bi-weekly thru 4/28/24. CMV will check manhole E2-029 bi-weekly for the next 6 weeks and determine if (E2-029-E2-027 will be added to a preventive maintenance program) 	n/a	CMV will inspect bi-weekly thru 4/28/24. CMV will check manhole E2-029 bi-weekly for the next 6 weeks and determine if (E2-029-E2-027 will be added to a preventive maintenance program)	
2	2SSO10184	Active	San Rafael SD CS	San Rafael Sanitation District	894049	1.2	Certified	Doris Toy	District Manager	18-MAR-24	02-MAY-24	02-MAY-24	Category 1 Spill	232 Miramar	03/14/2024 16:05	03/14/2024 18:10	03/14/2024 15:40		-		Spill exited rod hole below 232 Miramar.  The homeowner noticed it and called it in.  The effluent traveled street, curb and gutter to a catch basin between First and Second St.  We collected roughly 60 gallons from the gutter pan.  	37.9712761185	-122.53683563	Other Sewer System Structure	Rod hole R518		135	The quantity of this spill has been updated.  We originally reported 127 gallons to the County of Marin Environmental Health Services but upon review the responding technician accounted for the spill happened between the time frames of Noon to 6pm for 158 minutes.  The spill ended at 6:18pm.  18 minutes occurred in the time frame between 6pm and Midnight.  For that time frame the % of usage increases from 20% to 30%.	Y	After entering the catch basin the storm drainage travels in to an underground creek (San Rafael Creek) system  within 7'x12' RCB culvert for approximately 1,000' where it daylights but contained within an inaccessible drainage culvert where the creek eventually enters the San Rafael Canal	0	75	Attached photographs include pictures of spill site, street, curb and gutter and site post cleanup.	75	60	Drainage Conveyance System that discharges to surface water	I thought I had initially filed this certification last week but unfortunately for some unknow reason it did not.  This is the second time filling out this certification page.  	After the discharge left the rodding inlet it traveled down Miramar 450+ feet to the catch basin before 2nd St.  This catch basin enters 54  RCP for 50' and then into San Rafael Creek which is underground inside an 12'x8' RCB culvert.	Y	37.972303	-122.536584							03/14/2024 18:18	Upstream lateral connections for a total run time 158 minutes	The volume of this spill was initially under estimated.  The responding technician accounted for the entire spill time between noon and 1800 hours but in actuality 140 minutes were between noon and 1800 hours and 18 minutes between 1800 hours and midnight.  The percentage of water used before 1800 hours is 20% and after 1800 hours is 30%.  	Other (specify below)	This spill was caused by Pipe Structural problem/failure.  The pipe between the rodding inlet and the downstream manhole passes under landscaped private property with several mature trees.  These trees have pushed our pipe down creating a sag where debris collects.	Gravity Mainline		Vitrified Clay		60	No impact	N	Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow		After clearing blockage we washed down the affected areas and removed all wash down water.  We estimated approximately 60 gallons were in the street curb and gutter.  Afterwards we contacted the County of Marin Environmental Health Services to see if they wanted samples and signage posted.  They did not.	Adjusted Schedule/Method of Preventive Maintenance; Plan Rehabilitation or Replacement of Sewer	  	The gravity system in this area has been in design for the past few years and have been held up with new easements.  We have finally completed this and the project is out to bid.  We hope to have this gravity system replaced by summer.  In the meantime we adjusted the cleaning schedule to have that pipe run every other week.	Recorded new easements, finalized design, project sent out to bid, bid opening 04/09/2024	03/14/2024 19:20	There has been several spill at this location.  We previously identified the issue but short of excavating private property we redesigned this pipe to flow around the treed area.  	N			San Rafael Creek	Stream/Creek		above and below ground creek	no impact	Other (specify below)	No public access to creek	Marin County Environmental Health Services	0	N	N												
4	4SSO11368	Active	West Hollywood CS	West Hollywood City	894051	1.2	Certified	Robert Swartz	Sr. CE	19-MAR-24	17-APR-24	17-APR-24	Category 1 Spill	1583-0182 (1016 North Stanley Avenue, West Hollywood)	03/11/2024 17:00	03/11/2024 18:00	03/11/2024 16:30	03/18/2024 16:00	24-1623		CSMD Map Sheet No. 1583 MMS No. 8683771 Manhole No. 182 was overflowing. 	34.08874	-118.35637	Gravity Mainline; Lateral Clean Out (Private); Manhole	Manhole No. 182		1520	Sewage was flowing from Manhole No. 182 onto the street.  A portion of the spill entered two city catch basins located at 901 N Stanley Avenue and 7625 Willoughby Avenue. Additionally, a small amount of sewage discharged from a private cleanout in the laundry room at 1016 N Stanley Avenue.	Y	A portion of the spill entered two city catch basins located at 901 N Stanley Avenue and 7625 Willoughby Avenue.	0	1400	A portion of the spill entered two city catch basins located at 901 N Stanley Avenue and 7625 Willoughby Avenue, which leads to City Drain, RDD 014, BI 0055 - Line A, BI 0055 - Line B, BI 0087, BI 0054, and Ballona Creek.	1400	120	Building or Structure; Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Sewage was flowing from Manhole No. 182 onto the street.  A portion of the spill entered two city catch basins located at 901 N Stanley Avenue and 7625 Willoughby Avenue, which leads to City Drain, RDD 014, BI 0055 - Line A, BI 0055 - Line B, BI 0087, BI 0054, and Ballona Creek. Additionally, a small amount of sewage discharged from a private cleanout in the laundry room at 1016 N Stanley Avenue.	Y	34.08874	-118.35637	34.08928	-118.35608	34.0873	118.35667	34.08729	118.35606	03/11/2024 18:30	CWEA SSCSC Manhole Gauge 	The start time is obtained from the reporting party, the end time is when the crew clears the obstruction, and the overflow stops.	Debris-Rags; Root Intrusion		Gravity Mainline		Vitrified Clay		99	N/A	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Upon arrival, we found Manhole 182 overflowing intermittently and small portion of sewage was discharged from the private cleanout in the laundry room at 1016 N Stanley Avenue. Containment was set up at city storm drains located at 901 N Stanley Avenue and 7625 Willoughby Avenue. We hydro-cleaned Manholes 183 to 182 and broke heavy rags and roots stoppage. Manholes 182 to 181 at 1016 N Stanley Ave., were hydro-cleaned, and an estimated 20 gallons were discharged and contained in the laundry room. A Vactor was set up at the catch basin and all liquids were washed and vacuumed. All required agencies were promptly notified. 	Adjusted Schedule/Method of Preventive Maintenance	It is recommended that Stanley Avenue from Manhole 183 to 181 be placed on a 90-day hydro PM schedule. 	It is recommended that Stanley Avenue from Manhole 183 to 181 be placed on a 90-day hydro PM schedule. 	N/A	03/11/2024 19:00	It is recommended that Stanley Avenue from Manhole 183 to 181 be placed on a 90-day hydro PM schedule. 	N			Ballona Creek, Santa Monica Bay	Ocean; Wash		Ballona Creek, Santa Monica Bay	N/A	Other (specify below)	No impact.	Public Health	0	N	N												
3	3SSO10332	Active	City of Morgan Hill CS	City of Morgan Hill	894055	1.3	Certified	Chris Ghione	Public Services Director		25-MAR-24	25-MAR-24	Monthly Category 3 Spill	220 Berry Ct Morgan Hill ca. 	02/16/2024 09:43	02/16/2024 09:58	02/16/2024 08:30				spill was caused by roots and appeared from pick hole in manhole lid, sewage was mostly contained I the court by curb and gutter and dirt and leaves.  See attachments 	37.130679	-121.661941	Manhole			60	spill was burmmed early so only small amount went into storm drain, most of the spill was in curb and gutter soaked into dirt and decomposing leaves. see attachments	Y	storm inlet bottom is slightly lower than pipe, keeping most of the 3 gallons in the bottom of the box. See attachments 	3				60	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Spill reached Storm drain inlet and was contained in the box area and did not start flowing downstream 	Y	37.148607	-121.592407							02/16/2024 10:23	Used area volume and flow rate, calculated amount of sewage on the ground and amount of flow to get total volume and start time.	Used flow rate for start time and was on scene when plug was broken. 	Root Intrusion		Gravity Mainline		Vitrified Clay		30	Most of the spill was contained in the court and dirt and leaves. we were able to recover all of it including flushing the storm system, and washed the entire area and vacuumed it up.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		caller who reported it was a streets worker and burmed the storm inlet immediately stopping the flow into the storm drain. I immediately sent a truck the the downstream manhole to break the plug. I sandbagged the area and went to assist with the jetting. once plug broke we backed up and started flushing the storm line while I ran a hydrant to flush the the small amount of sewage out.   	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer	 line was videoed and will get several pipe patches 	The line will be repaired in several areas using fiberglass pipe patches. 		02/16/2024 12:39	Spill was caused by roots found during CCTV inspection.		NA	02/16/2024 14:44														NA	Line will be repaired ASAP	NA	NA	NA	NA	NA 	None	NA	
5F	5SSO10757	Active	Reedley, City Of CS	Reedley City	894058	1.5	Certified	Martha S Cardoso	Wastewater Systems Supervisr	18-MAR-24	29-MAR-24	29-MAR-24	Category 1 Spill	City of Reedley Wastewater Treatment Plant (Cricket Hollow Park)	03/14/2024 04:30	03/14/2024 04:15	03/14/2024 01:15	03/18/2024 14:55	24-1620		The City of Reedley Wastewater Treatment Plant Main Sewer Line is undergoing an expansion. The WWTP Standby Operator was contacted on March 14, 2024 at 3:56 a.m. to assist by placing influent pump station pumps back online. He arrived at 4:15 a.m. and turned on the pumps. At 4:30 a.m. he was notified of the sewer spill that had taken place earlier (1:15 a.m.). W.M. Lyles was contacted by the emergency phone system of the HERC Rental Company By-Pass Pumps. Upon arrival the Superintendent noticed that the two pumps near the influent pump station within the Plant were not operating. He canvassed the area and noticed that a spill had taken place along the Cricket Hollow Park parking lot. He quickly turned off the pumps along the Olson main sewer line to stop any additional sewer spill, he relieved the by-pass plug sending flow back into the influent pump station. There were multiple appearance points (see attachment).	36.58161	-119.46183	Gravity Mainline; Manhole		In addition to the manhole where the by-pass is located, five additional manholes showed sewer spill appearances ( MH #1154, MH #1153; MH #906; MH #905 & MH #899). Three manholes discharged into the Kings River at different sites (MH #1153; MH #906 & MH #905). Most of the discharged sewer was contained on dirt, concrete and asphalt areas. (Attached pictures)	1575	Several pictures are attached showing the point of appearances and additional pictures shall be submitted with the following written reports.	N	N/A	0	0	Several pictures demonstrating all points of appearance spills are included; as well as, the parking lot asphalt and cement areas. In addition sites where the spill was contained in dirt areas are included.	183	1392	Other (specify below); Paved Surface; Surface Water; Unpaved Surface	Construction trench	The City of Reedley Wastewater Treatment Plant is undergoing a upsizing of the Main Sewer line going into the Plant. Two By-Pass stations are in operation to divert flow from original line to perform project. One of the By-Pass stations self-priming pump failed and did not allow pump to operate. The stand-by secondary pump vacuum valve was inadvertently left shut, which did not allow it to run when the primary pump failed. As a result, the by-pass objective failed and the manhole being by-passed began to back-up and went into a lower elevated sewer line to a neighboring sewer system. The sewer line runs along a boat launch parking lot where there are several manholes sealed and bolted. The pressure from the back-up caused the sewer to seep out between the manhole rings and the manholes under the asphalt and eventually across the parking lot and into the Kings River. There were a total of four (4) manholes in this run and two in the Plant that overflowed.  See Attachment  for detailes. 	Y	36.58165	-119.46169							03/14/2024 01:30	Previous flow calculations from similar spill events were used to calculate the volume based on Volume Estimation: Duration and Flow Comparison Method; Measurements of Stained Asphalt, Cement and Dirt Areas Affected were taken; as well as, depths in dirt areas were used to determine and calculate estimated spill flows.  See Attachment. 	Relied on the responding party's account of events and timeline to estimate when the start and end of the spill event took place. The By-Pass Alarm System called out the Contractor. The time that he responded to site , investigated the problem, discovered the sewer back-up and response action is what was taken into account. Used the City Spill/Backup Response Workbook to further calculate the discharge flows.  See Attachment. 	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure; Construction Diversion Failure; Operator Error (specify below); Other (specify below)	The Construction Diversion By-Pass system failed. The primary by-pass pump self-priming pump failed. The secondary by-pass pump vacuum relief valve was inadvertently left shut, which did not allow the pump to start.   See Attachment. 	Air Relief Valve (ARV)/ Blow-Off Valve (BOV); Manhole; Other (specify below)	Construction Diversion By-Pass System (primary and secondary pumps)	Other (specify below); Polyvinyl Chloride (PVC)	The main appearance point was the manhole overflowing that was being by passed, which is new and under construction. The surrounding and affected sewer system pipe, which caused the spill to go into the Kings River is PVC and Clay Pipe.	52	The Kings River received an approximate volume of 183 gallons. At the time of the spill and approximate flow of the Kings River registered at 1,250 cfs; therefore, it is believed that the Kings Rivers was minimally impacted. The Park was closed due to construction and public access denied; therefore, no public health hazard is believed to have been caused. The spill was mostly contained on asphalt, cement or dirt areas. These areas believed to be minimally impacted, as well. No debris or fecal matter visible.	N	Contained All or Portion of Spill; Other (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Plug valve was immediately relieved and flow restored back to the Plant upon noticing the spill at the manhole taking place. Additional pumps installed to prevent future sewer spill in the event that by-pass pumps fail; monitored system 24/7 for three days. Tested and verified equipment and monitoring systems.  See Attachment 	No clean-up efforts could be performed to disinfect the affected areas due to the proximity of the Kings River. By the time staff noted the spill had affected the parking lot areas, water had already discharged into the Kings River and across the parking lot areas. The sewer plug at the Plant was immediately removed to relieve the spill and restore flow.  See Attachment. 	Other (specify below); Repaired Facilities or Replaced Defect	Third pump was installed at the by-pass station as an added source of spill control. Monitoring devises were tested and verified. A 24/7 oversight of the by-pass system was implemented for a three day period to make sure that the by-pass systems were in good operating condition.	The City is looking at the feasibility of adding slurry around existing manholes in the area to mitigate the seepage of sewer discharge when the line is surcharged. Likewise, the installation of a containment basin where the discharge flow typically discharges into the Kings River along with a berm area to divert the flow to the basin is being contemplated. Scheduling and funding is being looked into at this time, no specific timeline has been established. 	Under review and not determined, yet.	03/14/2024 08:00	 See Attachment 	N	N/A		Kings River	River		1,250 cfs on day of event (See Attachment)	None observed.	Other (specify below); Public Closure	Parks and entrance to park is closed. Public Access is denied due to Construction Project in effect from January thru June of 2024. Warning Sign posed in English and Spanish as a precautionary measure.	City of Reedley	0	N	N											N/A	
3	3SSO10291	Active	Montecito SD CS	Montecito Sanitary District	893541	2.1	Certified	Ricardo Larroude	Collections & Maintenance Superintendent 	20-FEB-24	19-MAR-24	19-MAR-24	Category 1 Spill	1516 Sinaloa Drive	02/19/2024 13:06	02/19/2024 13:22	02/19/2024 10:15	02/19/2024 15:30	24-1041		From District gravity sewer mainline manhole (O7M64) located on private driveway in front of 1516 Sinaloa Dr..	34.42969	-119.63089	Manhole			3200	From District gravity sewer mainline manhole, down private driveway onto Sinaloa Dr., traveling along curb into storm drain that discharges in to Oak Creek and flows into the Pacific Ocean.	Y	Storm drain located along the northern side of Sinaloa Drive	0	0	Discharge point from storm drain culvert into Oak Creek.	3200	0	Building or Structure; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		Spill Appearance point was from District 8  gravity sewer mainline manhole, down private driveway onto Sinaloa Dr., along curb into storm drain that discharges into to Oak Creek which eventually discharges into Pacific Ocean (Miramar Beach).	Y	34.42969	-119.63089	34.4288	-119.63042	34.42878	-119.62994	34.41946	-119.62681	02/19/2024 11:35	Witness provided a photo of the spill and start/end time frame to staff. With this information the calculations were based off the Duration & Flow Rate Comparison Method. 	Witness provided spill start and end time. (Spill had ended prior to staff's arrival).	Flow Exceeded Capacity (Separate Collection System Only); Rainfall Exceeded Design, I and I (Separate Collection System Only)		Gravity Mainline		Vitrified Clay		51	Spill was caused by hydraulic overload due by heavy storm event which lead to SSO from District gravity manhole. Spill reached storm drain that discharges into Oak Creek. Oak Creek discharges into Pacific Ocean (Miramar beach).	Y	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified	Flow was already restored prior to arrival.	When staff arrived at location of spill, flow had already been restored. With the information of the spill appearance point, path, and destination provided by witness, staff was able to wash down and vacuum affected area of spill with combo unit. (Take into consideration that rain was still present during the response procedure and Oak Creek was flowing heavily).	Other (specify below)	Due to hydraulic overload caused by rain event, District staff will continue to inspect sewer system for I & I and address issues as found.	District staff will continue to inspect sewer system for I & I and address issues as found.	 Ongoing process.	02/19/2024 14:45	Investigation determined that due to heavy rain event, I & I entered the system which caused the system to surcharge and spill out of manhole (O7M64)	N			 Oak Creek & Pacific Ocean (Miramar Beach)	Ocean; Stream/Creek		Flowing creek (Oak Creek) that discharges into the Pacific Ocean (Miramar Beach).	None	Public Closure		Santa Barbara County Environmental Health Services	10	N	N												
5S	5SSO11433	Active	City of Stockton MUD CS	Stockton City MUD	894064	1.2	Certified	Dagmara Saini	Program Manager III		20-MAR-24	20-MAR-24	Monthly Category 3 Spill	1440 S American St	02/14/2024 11:00	02/14/2024 11:30	02/14/2024 11:00				Photos show where the spill was noticed that originated coming from sanitary MH in the alley way	37.93937	-121.27907	Manhole			490	Photos show where the spill was noticed that originated coming from sanitary MH in the alley way	N						490	Street/Curb and Gutter (2 3)		Spill contained in gutter in front of 607 E First St 37.9389380  121.2787959										02/14/2024 12:00	Used measurements of the affected area to determine the spill quantity and  transferred those measurement to the spill formula worksheet to determine the area of the spill  	We used a spill volume calculator based on the measurements of the spill captured in the curb and gutter.  The spill start and end time are based on the time the spill was reported and the time we were able to stop the spill.  The reporting phone call was anonymous and there were no other witnesses.  	Debris-General		Gravity Mainline		Vitrified Clay		100	None	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Used Hydro truck to clean and vacuum the impacted area of the spill 	Inspected Sewer Using CCTV to Determine Cause		CCTV the main line and implement any repairs or adjustments to a PM ( if applicable)  that are needed. 		02/14/2024 14:00	CCTV completion still pending due to repair pending		CCTV completion still pending due to repair pending	06/30/2024 15:34														None	CCTV the main line and implement any repairs or adjustments to a PM ( if applicable)  that are needed. 	CCTV the main line and implement any repairs or adjustments to a PM ( if applicable)  that are needed. 	none	CCTV the main line and implement any repairs or adjustments to a PM ( if applicable)  that are needed. 	NA	Pending CCTV findings	standard spill response	CCTV completion still pending due to repair pending	
4	4SSO11365	Active	Unincorporated County Area CSMD South/County Sanitation District CS	Los Angeles Cnty DPW	894066	1.1	Certified	Robert Swartz	Sr. CE		15-APR-24	15-APR-24	Monthly Category 3 Spill	2429-0119 (1615 McKinley Avenue, La Verne)	03/11/2024 08:56	03/11/2024 10:45	03/09/2024 17:30				CSMD Map Sheet No. 2429 MMS No. 8683366 Manhole No. 119 was overflowing. 	34.09246	117.77771	Manhole	Manhole No. 119		400	The estimated spill discharged from the manhole onto the dirt field. 	N						75	Other (specify below); Unpaved Surface	Onto dirt field. 	The estimated spill discharged from the manhole onto the dirt field. 	N									03/11/2024 11:30	CWEA SSCSC Manhole Gauge	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops. 	Debris-Rags		Gravity Mainline		Vitrified Clay		54	N/A	N	Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow		We set containment in front of m/h 119.  Hydro jet equipment was utilized to clean the mainline from the trunkline to m/h 119 in the right of way south of Puddingstone Drive and broke down heavy rag stoppage. All required agencies were promptly notified.	Other (specify below)	Will inspect the mainline via CCTV to determine recommendations.	Will inspect the mainline via CCTV to determine recommendations.		03/11/2024 13:00	Will inspect the mainline via CCTV to determine recommendations.		Will inspect the mainline via CCTV to determine recommendations.	05/11/2024 12:00														N/A	N/A	Will inspect the mainline via CCTV to determine recommendations.	N/A	N/A	N/A	N/A	N/A	Will inspect the mainline via CCTV to determine recommendations.	
5F	5SSO11310	Active	Los Banos City CS	Los Banos Urban Area SW System	894067	1.2	Ready to Certify						Monthly Category 3 Spill	West I St/Arizona Ave	02/24/2024 10:30	02/24/2024 10:40	02/24/2024 10:30				See Attachment	37.06343	-120.85734	Force Main; Gravity Mainline; Manhole			200	See attachments	N						200	Paved Surface; Street/Curb and Gutter (2 3)		from manhole to curb and gutter on north side of West I Street/Arizona Ave.	N									02/24/2024 10:40	looked at the shape of the spill, calculated based on height, width, length	visual observation	Debris-General; Fats, Oil and Grease (FOG)		Force Main; Gravity Mainline; Manhole		Vitrified Clay		50	no impact	N	Cleaned Up (specify below); Restored Flow		turned off pump to the West I Sewer Lift Station, effectively stopping the overflow. Used a vactor truck to vacuum up spill and washed the affected area with disinfectant and bleach.  Restored the flow by clearing out the line.  Pump station turned back on.	Adjusted Schedule/Method of Preventive Maintenance		to increase scheduled cleaning and maintenance		02/24/2024 13:15	first cleared the line of intersection First/J St, however that did not restore the flow.  Went further down and cleared the line from I St/Third, towards the West, past 2nd St.  This cleared the line and restored flow properly.  The lift station pumps were left on.		n/a	02/24/2024 13:15														n/a	n/a	increase maintenance schedule	currently rehabilitating the West I Street Sewer Lift Station	n/a	currently rehabilitating the West I Street Sewer Lift Station	n/a	increase maintenance schedule	n/a	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	894069	1.2	Certified	John J. Hough	San Dist. Superintendent	19-MAR-24	28-MAR-24	28-MAR-24	Category 1 Spill	340435	03/17/2024 11:32	03/17/2024 12:49	03/17/2024 10:00		-		See Attached Spill map with Photos.	38.6481	-121.2493	Lateral Clean Out (Public); Manhole			992	See Attached Spill Map with Photos	N				See Attached Spill map with Photos.	990	990	Surface Water; Unpaved Surface		See attached Spill Map with Photos.	Y	38.6481	-121.2493	38.6482	-121.2492	38.6466	-121.2503	38.6466	-121.2502	03/17/2024 15:30	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Debris-General		Gravity Mainline		Other (specify below); Vitrified Clay	Cured-in-place-pipe Lined in 2009	64	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified Sacramento County Water Resources Drainage O&M.	See Attached Description of Spill Event	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected the main line with CCTV on March 18, 2024. Based on the findings, SacSewer placed the main line on a 24-month cleaning schedule.	SacSewer placed the main line on a 24-month cleaning schedule on 3/19/24.	03/17/2024 21:00	See Attached Description of Spill Event	N			Unnamed tributary to the American River	Stream/Creek		Unlined stream with dry and stagnant water.	No observed impacts to aquatic life	Other (specify below)	No public access impact.	N/A	0	N	N												
2	2SSO10159	Active	Napa Sd CS	Napa Sanitation District	894070	1.4	Certified	Seth Rossi	Collection System Manager		20-MAR-24	20-MAR-24	Monthly Category 3 Spill	Trancas St., Napa, CA 94558 (Mainline P58-018 - P58-019)	03/15/2024 13:51	03/15/2024 14:01	03/15/2024 13:30				Spill originated from manhole (P58-018) located in the street in the east bound lanes of Trancas St. Manhole located in front of 3331 Jefferson St. See Photos	38.32248	-122.30161	Manhole			54	Spill boundary measurement's listed below. Street Area Around Manhole 42' x 10'. Curb & Gutter 296' x 6  & 4' x 2'. Catch Basin 2.5' x 1' & 3' x 4 . See Photos	Y	Catch basin located just west of the intersection of Trancas St. & Jefferson St. on the south side of Trancas St. See Photos	1				54	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		Spill reached street, curb & gutter and extended east to catch basin in front of 1305 Trancas St.  See Photos	N									03/15/2024 14:55	Volume measurement of spill area by depth and total area of spill size at multiple locations. 	Visual observations by Napa San crew members and dampness of spill area. 	Other (specify below)	Blockage due to small plastic waste bag full of rags.	Gravity Mainline		Other (specify below)	C.I.P.P.	4	Traffic flow was restricted to one lane (two total east bound lanes on Trancas St.) during clearing the blockage and clean up. Flow was restored and the spill affected areas were cleaned and vacuumed by combination truck.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		Street, curb and gutter were rinsed, cleaned and vacuumed by the combination truck. Spill that reached the catch basin was cleaned and vacuumed. Photos captured of the spill and cleanup efforts.	Other (specify below)	Blockage was removed.	Mainline and lateral were inspected with no signs for the cause of the spill. Ongoing efforts will be needed to determine if the lateral connecting to the manhole is active and if that lateral was the source of where the bag of rags originated. 		03/19/2024 10:30	Blockage was cleared by using combination truck. Upon review a small waste basket bag full of rags caused the flow stoppage. The mainline was inspected and no apparent signs or defects were noted that contributed to the spill. 		Mainline containing small bag of rags was inspected on 3/19/2024. The lateral connecting to the manhole in which the spill originated from was also inspected. Determination will need to be made on if this lateral is active and if this was the source from which the bag of rags originated.	03/19/2024 10:30														N/A	N/A	No need for adjustment in preventive maintenance schedule at this time.	Mainline was rehabbed in 2020.	Mainline and possible active lateral connecting to the manhole were both inspected. 	N/A	N/A	No spill response modifications needed at this time.	Mainline containing small bag of rags was inspected on 3/19/2024. The lateral connecting to the manhole in which the spill originated from was also inspected. Determination will need to be made on if this lateral is active and if this was the source from which the bag of rags originated.	
5R	5SSO10801	Active	Redding City CS	City of Redding	893280	4.1	Certified	Joshua Vandiver	Wastewater Utility Manager	05-FEB-24	19-MAR-24	19-MAR-24	Category 1 Spill	Clear Creek Wastewater Treatment Plant	02/04/2024 23:17	02/04/2024 23:40	02/04/2024 23:32	02/05/2024 07:03	24-0681	13-MAR-24	Power loss at the treatment plant. The backup generator started as designed, however, the pumps went into alarm and would not clear until the operator acknowledged the alarm. Flow surcharged both influent pump stations wet wells, then the collection system before reaching the overflow structure into Clear Creek.  Power was off at 23:17, surcharge happened until 23:32 when overflow began.  The operator arrived at 23:40, pumps were fully operational and overflow stopped at 23:51.	40.50483	-122.36914	Other Sewer System Structure	Overflow gate from treatment plant influent pump station.		859494	Overflow gate from treatment plant influent pump station, discharges into Clear Creek, approximately 175 feet from confluence of the Sacramento River	N				The overflow structure sits adjacent to Clear Creek, which is a tributary to the Sacramento River.	859494	0	Other (specify below)	Overflow structure of treatment plant influent pump station	discharged directly into Clear Creek, approximately 175 feet from main channel entrance of Sacramento river	Y	40.5049	-122.36887							02/04/2024 23:55	Flow rate into the plant was taken and broken down to gallons per minute. When level in the wet well reached the overflow elevation, it leveled off.  Once pumps were able to restart and pump the level down below the overflow elevation, the spill ceased.	SCADA historian data, showing when power went off, influent flow rate, pumping rate, as-built drawings depicting elevations and capacities of infrastructure, (wet well and collection system) as well as elevations of piping and overflow structure.  	Pump Station Failure - Controls; Pump Station Failure - Mechanical; Pump Station Failure - Power	Power outage Level probe failure Pump control Programming failure	Other (specify below)	Overflow structure constructed as part of original influent pump station design, circa 1966.	Other (specify below)	concrete vault with a steel hinged flap gate	58	Spill discharged directly into Clear Creek, which meets the Sacramento river.  Discharge was unrecoverable as flows in the creek and river are flowing at very high seasonal rates. (Photo attached)	Y	Other (specify below); Other Enforcement Agency Notified; Restored Flow	Operations staff responded to the station, cleared all alarms, started all pumps in hand and locked generator in  on  position to ensure stable power.	Spill discharged directly into Clear Creek, which meets the Sacramento river.  Discharge was unrecoverable as flows in the creek and river are flowing at very high seasonal rates. (Photo attached)	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below)	Complete reprogramming of logic controllers at influent pump station. Replaced level transducer in the station.   Installing backup level sensors in both wet wells.   Installing emergency  high-level sensors  with programming changes to PLC logic control to override alarm delays, eliminating human acknowledgment of alarms before pumps can resume operation.  Reprogramming logic controllers with  E-Run  mode based on  high-high  backup level float system. Change the programming of generator logic to lock in on generator power for a minimum run time of 30 minutes before looking for shore power. 	Install level sensor in influent structure to identify high level independently of wet well level, as an extra back-up.  This sensor will be used as the override to start the  E-Run  process.	Changes are being implemented immediately.	02/05/2024 10:00	Wind storm caused public power to fault.  Emergency generator started and powered up location. As public power came on and off, ATS switched load back to shore power and back to generator power repeatedly.  Pump controllers went into alarm and  locked up , pumps would not restart.  Level transducer on second pump station failed, therefore not registering a high level condition and not calling for pumps. Operations staff was notified as soon as power was disrupted and responded to the site within 25 minutes of receiving the call and had all pumps running within 6 minutes of arriving. 	N			Sacramento river via Clear Creek	River		Sacramento River, south of Redding, north of Anderson	None observed	Other (specify below)	Spill was at the upstream end of the treatment plant property, which is fenced and limits public access for approximately 1.25 miles of riverbank downstream	NA	0	N	Y	DSC-001 Plant Headworks RSW-001 SSO Location RSW-001U 50' upstream of SSO Location RSW-001D Downstream of SSO Location (Located at R1 sample	EC, pH, Temp, DO, Ammonia, Total Coliform, E-Coli										
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	894075	1.1	Certified	Ameal McLaurin	Sewer Supervisor 2		20-MAR-24	20-MAR-24	Monthly Category 3 Spill	7716 Skyline Blvd., Oakland Ca	03/13/2024 16:15	03/13/2024 16:45	03/12/2024 14:30				Manhole on a hillside on easement on the right side of the building, flowing down to the street gutter area where it was contained.	37.8388	-122.19219	Manhole			503	Manhole on a hillside on easement on the right side of the building, flowing down to the street gutter area where it was contained.	N						447	Paved Surface; Unpaved Surface		Manhole on a hillside on easement on the right side of the building, flowing down to the street gutter area where it was contained.										03/13/2024 19:07	Paved gutter area: 20'L x 2'W x .083'D x 7.48-Gal = 25 gallons Paved gutter area: 10'L x 4'W x .083'D x 7.48-Gal = 25 gallons Paved gutter area: 320'L x 2'W x .083'D x 7.48-Gal = 397 gallons Lost in soil: 40'L x 12'W x .083'D x 7.48-Gal x .1875 = 56 gallons Total spill: 25 + 25 + 397 + 56 =503 gallons Recovered spill: 503 - 56 = 447 gallons Lost in soil: 503 - 447 = 56 gallons 	Start time was based on eyewitness account. End time was based on staff sewer crew restoring the flow in the mainline.	Debris from Construction; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		99	Manhole on a hillside on easement on the right side of the building, flowing down to the street gutter area where it was contained. The spill sewage and contaminated soil was recovered, the area was washed and cleaned. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Manhole on a hillside on easement on the right side of the building, flowing down to the street gutter area where it was contained. The spill sewage and contaminated soil was recovered, the area was washed and cleaned. 	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Mainline has been added to 6-month high frequency maintenance program, work order # 1511545.		03/17/2024 12:36	Sewer crew responding to the overflow found rocks and grease to had been the cause of the spill. CCTV inspection work order # 1510975 found the mainline to be in good condition, rocks combined with grease had been the cause of the spill. 		N/A	03/17/2024 12:36														N/A	Mainline has been added to 6-month high frequency maintenance program, work order # 1511545.	Mainline has been added to 6-month high frequency maintenance program, work order # 1511545.	N/A	CCTV inspection work order # 1510975 found the mainline to be in good condition.	N/A	CCTV inspection work order # 1510975 found the mainline to be in good condition. Mainline has been added to 6-month high frequency maintenance program, work order # 1511545.	Mainline has been added to 6-month high frequency maintenance program, work order # 1511545.	N/A	
5S	5SSO11001	Active	Modesto CS	Modesto City	894078	1.2	Certified	Robert Englent	Wastewater Collection System Superintendent	20-MAR-24	29-MAR-24	29-MAR-24	Category 2 Spill	1609 8th Street	03/18/2024 13:56	03/18/2024 14:07	03/18/2024 13:45	03/19/2024 14:06	24-1647		Jefferson Lift Station Structure ID SS000035 Inside the City of Modesto Corporation Yard	37.64422	-121.0088	Pump Station			1587	Sewer spilled from the lift station lid and traveled 40 ft. North West to the gutter and then 100 ft.  South to the storm drain catch basin in the cul-de-sac. The spill also traveled South approximately 50 feet from the lift station lid to the same catch basin.	Y	Sewer traveled down gutter to a newly installed catch basin and cross pipe tying into the existing positive storm drain system on 8th Street. The spill was contained with sandbags before it reached MHSD021515 in the intersection of 8th St. and L Street.  See Attachment	1570	0			1570	Drainage Conveyance System that discharges to surface water; Unpaved Surface		Sewer spilled from the lift station lid and traveled 40 ft. North West to the gutter and then 100 ft.  South to a new storm drain catch basin in the cul-de-sac. The spill also traveled South approximately 50 feet from the lift station lid to the same catch basin. From that new catch basin the sewer flowed through C/B SD010902 to the main storm line. We sandbagged the dry storm MH in the intersection of 8th Street and L Street.  (Also see illicit discharge report attached) 	Y	37.64436	-121.0089	37.64408	-121.00878	37.64461	-121.00873	37.64093	-121.0045	03/18/2024 13:50	See attachment  ECS Spill Volume Calculation Form and Drawing	Pump mechanic Gabriel Casiano was present during the sewage spill. Gabriel stated that the start time for the overflow was 1345 and ended at 1350 on 03/18/2024.	Other (specify below)	See Attachment	Other (specify below)	See Attachment	Other (specify below)	Wet Well	29	See Attachment	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Sandbagged catch basin in the cul-de-sac. Tracked down flow in the storm line and placed sandbags in the dry storm MH in the intersection of 8th and L Street.  LJR1 setup at the storm drain catch basin in the cul-de-sac to wash and vacuum the street, curb and gutter. LJR2 Setup inside the fence to wash down the asphalt to the catch basin. Then LJR2 setup at SDMH021515 to clean the line and vacuum all excess flow from LJR1 while they cleaned and vacuumed the upstream storm lines.	Other (specify below)	Jefferson lift station has been decommissioned and is no longer in service.	Jefferson lift station has been decommissioned and is no longer in service.	Jefferson lift station taken off line on 03-22-2024	03/18/2024 18:54	See Attachment	N												N													
5S	5SSO11433	Active	City of Stockton MUD CS	Stockton City MUD	894080	1.1	Certified	Dagmara Saini	Program Manager III		18-APR-24	18-APR-24	Monthly Category 3 Spill	1423 N Center St	02/16/2024 12:45	02/16/2024 13:20	02/16/2024 12:40				Photos shows spill overflowed from dumpster area of property into gutter area on the Harding Wy side of address 	37.96677	-121.29476	Lower Lateral (Private)			80	Photos shows spill overflowed from dumpster area of property into gutter area on the Harding Wy side of address 	N						80	Street/Curb and Gutter (2 3)		Spill occurred in the dumpster area of property over sidewalk into the gutter along Harding Wy  										02/16/2024 14:50	Used measurements of the affected area to determine the spill quantity and transferred those measurements to the spill formula worksheet to determine the area of the spill.	We used a spill volume calculator based on the measurements of the spill captured in the curb and gutter.  The spill start and end time are based on the time the spill was reported and the time we were able to stop the spill.  The reporting phone call was anonymous and there were no other witnesses.  	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		100	None	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		. Used Hydro truck to clean and vacuum the impacted area of the spill.	Inspected Sewer Using CCTV to Determine Cause		CCTV the main line and implement any repairs or adjustments to a PM (if applicable) that are needed.		02/16/2024 14:50	CCTV completion still pending results		CCTV the main line and implement any repairs or adjustments to a PM (if applicable) that are needed.	06/28/2024 13:52														None	CCTV the main line and implement any repairs or adjustments to a PM (if applicable) that are needed.	CCTV the main line and implement any repairs or adjustments to a PM (if applicable) that are needed.	None	CCTV the main line and implement any repairs or adjustments to a PM (if applicable) that are needed.	None	Pending CCTV findings	Standard spill response	CCTV the main line and implement any repairs or adjustments to a PM (if applicable) that are needed.	
5R	5SSO10799	Active	Oroville CS	Oroville City 	894081	1.1	Certified	Frederick Mayo	Public Works Director 		20-MAR-24	20-MAR-24	Monthly Category 3 Spill	20 Pamlea Jane Court 	03/15/2024 10:01	03/15/2024 10:21	03/15/2024 10:27				The sewer backup on June 20th at Pamela Jane was caused by root intrusion from the private sewer lateral at 4 Pamela Jane. City crews cut and cleared the line to restore flow. The backup caused flooding in one bedroom, two bathrooms, the hallway, and the cleanout, which spilled onto the lawn in the front yard.    	39.51443	-121.53682	Gravity Mainline; Inside Building or Structure; Lower Lateral (Private)			67	The sewer backup on March 15th at #20 Pamela Jane was caused by root intrusion from the private sewer lateral serving #4 Pamela Jane. City crews cut and cleared the line to restore flow. The backup caused flooding in one bedroom, two bathrooms, the hallway, and the cleanout, which spilled onto the lawn in the front yard. No sewage escaped the homeowner's property.	N						67	Building or Structure; Other (specify below)	front yar in lawn near clean out 	The sewer backup on March 15th at #20 Pamela Jane was caused by root intrusion from the private sewer lateral serving #4 Pamela Jane. City crews cut and cleared the line to restore flow. The backup caused flooding in one bedroom, two bathrooms, the hallway, and the cleanout, which spilled onto the lawn in the front yard. No sewage escaped the homeowner's property.	Y	39.51449	-121.53744							03/15/2024 10:37	Spill volumes were estimated by considering the start time of the spill at by homeowner at the start of the start of the spill, photos, and calculating average flow rates.    	Spill volumes were estimated by considering the start time of the spill, reviewing photos, and calculating average flow rates.    	Debris from Lateral; Root Intrusion		Gravity Mainline; Lower Lateral		Vitrified Clay	main was relined with PVC in 2017	7	The impact of the spill is confined to the inside of a private residence, resulting in damage to flooring, baseboards, and sheetrock.	N	Contained All or Portion of Spill; Restored Flow		City crews cut the root ball that was blocking the city sewer main flow line. It was protruding from the private lower lateral at #4 Pamela June Court. They checked with CCTV to ensure the line was clear. The spill remained confined to the inside of the home and one gallon of sewage on the front lawn near the cleanout.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause	will add this segment of main to monthly hot spot checks 	Add to monthly hot spot check. 		03/15/2024 10:37	On March 15th at 10:01, city crews were notified of a sewer backing up into the residence located at #20 Pamela Jane Court. The homeowner contacted a plumbing company and the city to respond. Upon the city's arrival at 10:21 AM, it was determined that the city sewer main was backing up into the residence. Crews discovered a root ball entering the city main from the private lower lateral serving #4 Pamela Jane. At 10:27 AM, they quickly cleared the main with a cutting head to free the obstruction, restoring flow to the main, and verified with CCTV that the root was cleared for flow restoration. Following this incident, city code enforcement reached out to the owner at #4 Pamela June, emphasizing the severity of the root intrusion from their private lateral. They were given a 30-day deadline to take necessary action to remove the roots. Additionally, the homeowner was advised to coordinate with the sewer department for line clearance post-repairs to ensure no issues in mainline		NA	03/20/2024 10:45														NA	Monitor monthly vis CCTV and clean as necessary 	Will add to monthly hot spot check. 	NA	The owner was notified regarding root intrusions from their lateral blocking the city sewer main. City crews removed the root ball using a cutting head and verified the clearance with CCTV. We have also instructed the homeowner at #4 Pamela June to make all necessary repairs to their lateral to ensure no future blockages occur on the city-owned main from their lateral. We also instructed homeowner t to notify the city sewer department when the repairs are scheduled so we can verify no other obstructions were created in our sewer main. 	NA	NA	NA	NA	
2	2SSO10128	Active	Dublin San Ramon Serv Dst CS	Dublin San Ramon Services District (WWTP NPDES & SSO)	894085	1.2	Certified	Clint Byrum	Water/Wastewater Systems Superintendent		26-APR-24	26-APR-24	Monthly Category 3 Spill	310 Cromwell Ave. Dublin, Ca 94568	03/19/2024 09:30	03/19/2024 09:48	03/19/2024 05:25				The Spill originated at manhole V19D2-22 located at coordinates 37.716894, -121.907155. 	37.716894	-121.907155	Manhole		None	320	The Spill originated at manhole V19D2-22 located at coordinates 37.716894, -121.907155. The spill was located in a low spot and extended 16' north, 16' south, 6' west and 7' east from the center of the manhole. The spill was contained in the low dirt spot area that is 32' x 13', in between the 2 entrances to the building. There were no other appearance points.	N						320	Unpaved Surface		The Spill originated at manhole V19D2-22 located at coordinates 37.716894, -121.907155. The spill was located in a low spot and extended 16' north, 16' south, 6' west and 7' east from the center of the manhole. The spill was contained in the low dirt spot area that is 32' x 13', in between the 2 entrances to the building. There were no other appearance points.	Y	37.716894	-121.907155							03/19/2024 10:14	The spill volume estimations were calculated using the Area/Volume Method. The spill was captured in the low spot, the area and depth of the spill were measure with a tape measure. The spill area was calculated in three areas that coincided with the depth in those area. Those calculations rendered the spill volume in cubic feet which was then multiplied by 7.48. An assumption of 20% was added for the uneven/roughness of the hard dirt ground.	The start time was determined using the water meter data and maintenance staff. The maintenance staff was called out to 310 Cromwell for a smell complaint on 3-18-24 and did not see the spill occurring. The water meter shows that a large amount of water was being utilized between 5 and 6 a.m. The high usage continued until 9:30 a.m. around crews' arrival time. The start time was determined around the start of the high usage on 3-19-24 at 5:25 a.m. The end time was determined visually when the blockage started to drain, and the sewer returned to the collections system at 10:14 a.m.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		71	The spill impacted a low dirt spot area between the two entrances to the building where the manhole was located. The area had no foot or vehicle traffic. The spill remained in the low spot and did not spread onto the walkway or roadway.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		The spill response included the combo truck and CCTV truck. The spill was contained, and we utilized the CCTV truck to investigate the cause of the spill. A large amount of grease in the pipe caused a grease blockage. The Blockage was removed with the combo truck. Most of the sewage returned to the pipe through the manhole location upon removing of the blockage. Once the pipe flow was restored, the combo crew washed down and vacuumed up the affected area of any remaining sewage. Once the remaining sewage was vacuumed up from the site the dirt area was sprayed down with a chlorine solution.	Added Sewer to Preventive Maintenance Program; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause		Before completely removing the blockage with the combo truck, the line was CCTV inspected. A large grease blockage that blocked the entire 12  pipe was found. Further investigation showed the grease is originating from the dining hall upstream from the blockage.  It was found that the dining hall uses high temperature dish washers. The grease from the dishwashers is emulsified and is bypassing the grease trap device from the dining hall. The maintenance contractor and dining hall supervisors were put on notice that the bypassing is occurring, and corrective action will be needed.  - Clean and CCTV the line to ensure the line is free and clear of grease. finish by Friday 3/22/24. -DSRSD Environmental Compliance conducted the investigation to find the bypassing and will be conducting quarterly inspections. They will also be meeting to put in place actions to keep grease from bypassing grease trap. 4/12/24 -The Collections O&M staff has added the line to 3-month trouble spot list.		03/20/2024 13:04	It was found that the dining hall uses high temperature dish washers. The grease from the dishwashers is emulsified and is bypassing the grease trap device from the dining hall. The maintenance contractor and dining hall supervisors were put on notice that the bypassing is occurring and corrective action will be needed. DSRSD Environmental Compliance conducted the investigation to find the bypassing and will be conducting quarterly inspections.		Looking into the design drawings of the Dining hall and into the history of the O&M on the sewer line that the stoppage occurred.	03/21/2024 15:30														N/A	DSRSD's Environmental Compliance will be working with the dining Operators to ensure the grease trap is not being bypassed and the grease is not emulsified when going into the grease trap. Changes in operation or modifications to the grease trap may need to take place.	The line has been added to the 3-month trouble spot list. It will also be CCTV'd Bi- Annually for the next 2 years to ensure the corrective measure are being adhered to by the dining staff.	N/A	N/A	N/A	The line the blockage occurred on is placed on the 3-month trouble spot list. Every 3 months we will jet the line and inspect what is coming down the line. If large amounts of grease are seen, CCTV'ing the line will be triggered, and we will inspect the line.	N/A	Looking into the design drawings of the Dining hall and into the history of the O&M on the sewer line that the stoppage occurred.	
2	2SSO10179	Active	San Jose City CS	San Jose City	894095	1.3	Certified	Ben Nguyen	Senior Engineer	20-MAR-24	29-MAR-24	29-MAR-24	Category 1 Spill	1078 W Riverside Way, San Jose, CA 95129	03/17/2024 19:45	03/17/2024 20:17	03/17/2024 19:00	03/17/2024 20:58	24-1607		The  spill appearance point was a sanitary sewer manhole in front of the property 1078 West Riverside Wy. A picture of the spill appearance point is included in the attachments named  7_SpillAppearancePoint .	37.306618482226	-122.022401924694	Manhole			258	The spill discharged from the manhole and traveled along the street curb/gutter.  From the curb gutter, the sewage reached a nearby storm inlet.  This storm inlet is connected to the City of San Jose's municipal storm sewer system. The sewage traveled within the storm system to a storm outfall discharging to the nearby waterway, Calabazas Creek.	Y	The spill entered a nearby storm drain inlet along West Riverside Wy.  This storm drain inlet is connected to the City of San Jose's municipal storm sewer system discharging to the Calabazas Creek. A picture of the drainage conveyance system entry location (storm drain inlet) is included in the attachments named  10_StormDrainEntryLocation .	0	139	The spill discharged from the manhole and traveled along the street curb/gutter.  From the curb gutter, the sewage traveled along the street and reached a nearby storm inlet.  This storm inlet is connected to the City of San Jose's municipal storm sewer system. The sewage traveled within the storm system to a storm outfall discharging to the Calabazas Creek. A picture of the discharge point is included in the attachments named  11_DischargePointToWaterway .	220	38	Surface Water		Spill reached the outfall at the Calabazas Creek.  The Creek was in dry stage at the time of the spill and following day. 	Y	37.306879	-122.021882							03/17/2024 20:26	Spilled volume was calculated with the flow duration method.  Estimate flow rate observed was 3 gpm.  Duration was estimated as 86 minutes.  	Spilled volume was calculated with the flow duration method.  Estimate flow rate observed was 3 gpm.  Duration was estimated as 86 minutes.  	Root Intrusion	Root intrusion in the pipe leads to grease built-up.  	Manhole		Vitrified Clay		68	Spilled reached the Calabazas Creek.  City's staff performed inspection at the discharge outfall and found no significant impact to the creek.  Due to the creek was in dry stage, no observed impact to wildlife.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Upon arrival, crew place sandbags at the inlet catch basin to contain water from further flowing into the catch basin. Crew verified plug segment and started to clear the plug.  Crew checked outfall and confirmed water had reached the Creek.  Once plug was clear, crew performed removal and cleaning of water from street's surface and curb/gutter.	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Repaired Facilities or Replaced Defect		Plugged segment's maintenance schedule is adjusted to lower frequency, segment will be revideo after 6 months, segment will placed on immediate root control treatment, and segment will be planned for CIPP.  	Immediately put on root control, revideo after 6 months, and will be lined w/ CIPP process.  	03/17/2024 23:19	Crew observed grease at the time of responding.  After CCTV inspection was performed, multiple locations with root were observed throughout the segment.  It was concluded that root intrusion and growth had caused the grease built-up in the pipe and caused the spill. 	N			Calabazas Creek	Stream/Creek		Calabazas Creek is a 13.3-mile-long northeast by northward-flowing stream originating on Table Mountain in Saratoga, California in Santa Clara County, California. It courses through the cities of Saratoga, San Jose, Cupertino, Santa Clara and Sunnyvale, culminating in the Guadalupe Slough in south San Francisco Bay. Beneficial uses include cold freshwater habitat, warm freshwater Habitat, wildlife habitat, water contact recreation, and noncontact ater recreation. 	None	Other (specify below)	None	Valley Water	0	N	N												
4	4SSO10408	Active	Manhattan Beach City CS (SSO program)	Manhattan Beach City	894098	1.2	Certified	Rodolfo Hurtado	Wastewater/Electrical Supervisor	21-MAR-24	21-MAR-24	21-MAR-24	Category 2 Spill	27th and Pacific Ave. 	03/11/2024 10:40	03/11/2024 10:46	03/11/2024 10:40	03/11/2024 12:35	24-1459		SoCal Gas Company has a drilling project to relocate their gas mainline from the west side of Pacific Ave to the east side. During the drilling process, they drilled through a force main in the middle of the 27th & Pacific Ave intersection. 	33.89637	118.4033	Force Main		The spill was being vacuumed by a combination truck to reduce the spill amount onto the street. 	9000	The spill was intermittent and only when the pumps ran and charged the force main. 	Y	The affected catch basin was 370ft away from the spill point. 	300	0			9000	Street/Curb and Gutter (2 3)		The spill originated at the intersection of Pacific Ave. and 27th Street and traveled 370 feet towards a nearby catch basin. 	Y	33.89736	118.40342							03/11/2024 12:00	5 cu/yd = 1,009 gal x 4 fill ups = 4,036 gal 7 cu/yd = 1,413 gal x 3 fill ups = 4,239 gal sandbag containment = 725 gal total = 9,000 gal	Two combination vehicles were working in tandem with one having a 5 cu/yd tank and the other a 7 cu/yd tank and the rest measured by the pool pumped by a trash pump.	Damage by Others Not Related to Collection System Construction/Maintenance		Force Main		Ductile Iron		70	Street closure on Pacific Ave. between Valley Dr and 31st Street.	N	Contained All or Portion of Spill		Sandbags were set at the catch basin to prevent inflow, and two combination trucks vacuumed the spill when pumped by the lift station until a complete bypass of the lift station was performed. 	Repaired Facilities or Replaced Defect		The puncture to the force main was covered by a compression clamp. City staff will work closely with contractors in the future. 	Tail meeting topic. 	03/11/2024 12:00	It was clear the boring machine hit the force main once the spill was stopped. (look at the picture submitted)	N												Y													
8	8SSO10620	Active	EVMWD Regional Plant CS	Elsinore Valley Municipal Water District	894099	1.3	Certified	Jose Garcia	Collections System Worker III	21-MAR-24	26-MAR-24	26-MAR-24	Category 1 Spill	Winward Dr.	03/20/2024 10:57	03/20/2024 11:03	03/20/2024 08:30	03/20/2024 12:18	24-1668	26-MAR-24	Sewage coming out of manhole and clean out.	33.68255	-117.23872	Lateral Clean Out (Private); Manhole			750	See attachment 	Y	Into the storm drain and into the lake.	0	0	See Attachment	745	5	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Manhole and customer clean out	Y	33.68254	-117.23875	33.6826	-117.23873					03/20/2024 12:15	Visual Calculation  	based on GPM and time duration 	Debris from Construction; Debris-General		Gravity Mainline		Vitrified Clay		55	waterway	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow		Lysol solution was used on public streets and curb and gutter. Flow was restored with in a few minutes. With final clean up and vacuumed.	Adjusted Schedule/Method of Preventive Maintenance		Recleaned gravity main and need to investigate    	See Attachment 	03/20/2024 12:15	After investigating, cause of blockage was due to False bottom, Settled deposits and calcium buildup. 	N			Canyon Lake	Lake		Canyon Lake 	None	Other (specify below)	Sampled lake 	Canyon Lake POA	0	Y	Y	See Attachment	See Attachment										
4	4SSO11365	Active	Unincorporated County Area CSMD South/County Sanitation District CS	Los Angeles Cnty DPW	894100	1.1	Certified	Robert Swartz	Sr. CE		17-APR-24	17-APR-24	Category 1 Spill	1645-0226 (11010 S Normandie Avenue, Los Angeles - Unincorporated County Area)	05/11/2023 22:22	05/11/2023 23:35	05/11/2023 22:09		-		CSMD Map Sheet No. 1645 MMS No. 8240004 Manhole No. 226	33.93511	118.30039	Manhole			300	Sewage discharged from Manhole No. 226 into catch basin at 11104 Normandie Avenue.	Y	Sewage discharged from Manhole No. 226 into catch basin at 11104 Normandie Avenue, which leads to DDI 0025, Caltrans Drain, Unknown Drain, Minor Channel, PD 0021 (Hollypark Drain), and Dominquez Channel. 			Sewage discharged from Manhole No. 226 into catch basin at 11104 Normandie Avenue, which leads to DDI 0025, Caltrans Drain, Unknown Drain, Minor Channel, PD 0021 (Hollypark Drain), and Dominquez Channel. 	200	100	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Sewage discharged from Manhole No. 226 into catch basin at 11104 Normandie Avenue, which leads to DDI 0025, Caltrans Drain, Unknown Drain, Minor Channel, PD 0021 (Hollypark Drain), and Dominquez Channel. 	Y	33.93444	118.30006							05/12/2023 12:05	CWEA SSCSC Manhole Overflow Gauge	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops. 	Other (specify below)	Failed liner in mainline that caused a blockage in mainline.	Gravity Mainline		Other (specify below); Vitrified Clay	LVCP	11	no impact	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow		Hydo jet equipment was used to break down the mainline blockage, washed down the curb and gutter, and notified the required agencies. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Adjusted sewer to 150 days Hydo periodic. 	Adjusted sewer to 150 days Hydo periodic. 	05/12/2023 01:25	Inspected sewer using CCTV. On 5/11/2023 pulled piece of liner from mainline. Checked repair of mainline. 	N			Dominguez Channel	Other (specify below)	Dominguez Channel 	Dominguez Channel 	No impacts.	Other (specify below)	No impact.	N/A	0	N	N												
2	2SSO10216	Active	West County WW District CS	West County Wastewater District	894109	1.3	Certified	Gordon Times	Collection System Operations Department Manager	22-MAR-24	02-MAY-24	02-MAY-24	Category 2 Spill	4927 San Pablo Dam Rd	03/19/2024 20:50	03/19/2024 22:20	03/19/2024 19:30	03/19/2024 21:27	24-1653		Spill occurred at 4927 San Pablo Dam Rd out of private lateral connection	37.9638	-122.29164	Backflow Prevention Device; Inside Building or Structure			6500	Spill occurred at 4927 San Pablo Dam Rd out of private lateral connection	N						0	Building or Structure; Unpaved Surface		The spill was limited to the area around the cleanout, and the front and side yards, and inside the property's bathtub.	Y	37.9638	-122.29164							03/19/2024 22:40	The team used the San Diego Chart Photo Comparison Method.	The resident revealed the estimated time that the bathtub started backing up.	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		69	The spill mainly affected the front and side yards of the property. It also partially filled the bathtub inside the property. The spill had little impact on the environment.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow	The area effected by the spill was cleaned by Restoration Management the next day. They removed all solids and effected soil and grass. They also cleaned and disinfected the area and the bathroom.	See above.	Adjusted Schedule/Method of Preventive Maintenance		The frequency of cleaning will be increased for this pipeline.	This took place the next day.	03/20/2024 11:59	A CCTV inspection was performed that revealed roots in a joint that grew and held up grease and debris and caused the spill.	N												N													
6A	6SSO11118	Active	Tahoe City Public Utility Dist CS	Tahoe City PUD	894110	1.1	Certified	Dan Lewis	Utilities Superintendent		22-MAR-24	22-MAR-24	Monthly Category 3 Spill	6393 Chambers Lodge Rd	03/19/2024 11:03	03/19/2024 11:30	03/19/2024 10:30				Spill originated at 6393 Chambers Lodge Rd @ Tahoe City PUD Mckinney Sewer Station.  Photographs attached	39.07245	-120.14133	Force Main			192	Spill surface at a rate of 2 GPM, traveled a 40 foot distance, and pooled in front of TCPUD Mckinney Sewer Station.  See photographs attached	N						180	Paved Surface; Unpaved Surface		Spill surface at a rate of 2 GPM, traveled a 40 foot distance, and pooled in front of TCPUD Mckinney Sewer Station.  See photographs attached										03/19/2024 12:06	Flow rate and distance witnessed by TCPUD staff	TCPUD inspector witnessed flow and pooling of water at 11:03, superintendent was then notified.  Construction manager was on-site at 10:30 and did notice some water but didn't realize it was sewer. Contractors working on-site did not notice any water prior to that time   	Other (specify below)	Pipe structural failure	Force Main		Other (specify below)	ACP	55	Spill originated on the north side of the TCPUD Mckinney Sewer Station and traveled a 40' distance to the east side of station 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Force main was back flushed to stop spill from occurring, vactor was used to excavate and remove all sewage from surface, pipe was repaired with full circle clamp, area of spill was disinfected with a light chlorine solution 	Repaired Facilities or Replaced Defect		Pipe was repaired with full circle clamp. TCPUD plans to replace 40' of pipe encompassing the pipe failure area, and install sewer bypass ports on the force main in 2024		03/19/2024 17:30	Investigation occurred and pipe was repaired on the same day of spill		Contractors working on-site during the week. TCPUD staff also on-site during the week	03/19/2024 17:30														N/A	Pipe replacement in 2024	Pipe replacement in 2024	Pipe replacement in 2024	Pipe replacement in 2024	Operational project	See pictures attached	See pictures attached	Contractors working on-site during the week. TCPUD staff also on-site during the week	
2	2SSO10105	Active	Central Contra Costa Sd CS	Central Contra Costa Sanitary District	894111	1.3	Amended	Paul Seitz	Division Manager	22-MAR-24	26-MAR-24	26-MAR-24	Category 1 Spill	5 Poppy Ln Orinda 	03/21/2024 09:06	03/21/2024 09:20	03/20/2024 16:45	03/21/2024 18:05	24-1707		Failure of the downstream coupling of a temporary repair. 	37.90444	122.17213	Gravity Mainline			4980	Spill traveled downstream in a tributary of Lauterwasser Creek to Lauterwasser Creek where is was captured and returned to the sanitary sewer system.	N				Spill exited an open joint of pipe into rip rap which was placed into creek bed to repair damage caused by previous years' storm.	4980	4980	Other (specify below)	Flowing creek	Spill started behind #5 Poppy Ln and flowed directly into a tributary of Lauterwasser Creek which flows into Lauterwasser Creek where we were able to contain it at the intersection of Lombardy Ln and Sleepy Hollow.	Y	37.90444	122.17216	37.9079	122.18048	37.90403	122.18972			03/21/2024 10:46	Spill was calculated using the flow rate and duration calculation: 4 gpm X 1081 mins= 4324 gallons	We asked reporting party what time they first noticed the spill to create a start time. We witnessed the flow rate and used our in house flow rate charts to determine the actual flow rate. We were able to contain and return the spill in it's entirety to the sanitary sewer system.	Other (specify below)	The downstream side of the pipe repair failed at the coupling due to heavy loading of rip rap to stabilize creek bed.	Gravity Mainline		Polyvinyl Chloride (PVC)		1	Based on an inspection conducted by a third party biologist, there was no negative impact on the creek or it's aquatic life.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		We immediately began bypass pumping to minimize spill volume. We  tested the creek to determine the complete reach of the spill and set up pumps downstream of that area. We pumped and flushed the creek with fresh water until a clean test was achieved.	Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect		We fixed the damaged connection and supported the mainline in preparation of a permanent replacement.	Temporary repair made, reported to Engineering dept for design and replacement. Will continue to monitor until replacement is made.	03/21/2024 08:05	The cause of the spill was confirmed as soon as we excavated and exposed the damaged connection.	N			Lauterwasser Creek	Stream/Creek		Stream	None observed	Other (specify below)	None at all	N/A	0	N	Y	Upstream, Site, Downstream	CBOD, Dissolved oxygen, Ph, Total residual chlorine, Ammonia, COD, Enterococcus, Total/fecal coliform, E-Coli										
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	894112	1.4	Certified	Ameal McLaurin	Sewer Supervisor 2		22-MAR-24	22-MAR-24	Monthly Category 3 Spill	2666 Grande Vista Avenue	03/21/2024 15:29	03/21/2024 16:00	03/21/2024 09:00				Sewer lateral cleanout (private) on the right side of the building. 	37.79254	-122.22558	Lateral Clean Out (Private)			81	Sewer lateral cleanout (private) on the right side of the building overflowing onto paved walkway and flowing down to paved back yard and finally flowing down into unpaved surface where some of it soaked into the soil.	N						0	Paved Surface; Unpaved Surface		Sewer lateral cleanout (private) on the right side of the building overflowing onto paved walkway and flowing down to paved back yard and finally flowing down into unpaved surface where some of it soaked into the soil.										03/21/2024 18:30	Calculated volumes:  Paved concrete walkway: 31'L x 4'W x .02'D x 7.48-gal = 19 gallons Paved concrete back yard: 16'L x 9'W x .045'D x 7.48-gal = 48 gallons Average depth of back yard: .08' + .04' + .04' + .02' = .018' / 4 = .045' Unpaved surface in rear yard: 5'L x 4'W x .5D x 7.48-gal x .1875 = 14 gal Total spill: 19 + 48 + 14 = 81 gallons	Start time was based on witness account, the resident. End time was based on responding sewer crew restoring the flow in the mainline.	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		22	Sewer lateral cleanout (private) on the right side of the building overflowing onto paved walkway and flowing down to paved back yard and finally flowing down into unpaved surface where some of it soaked into the soil.	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow	Cleaned, washed and removed contaminated solids from the property.	Cleaned, washed and removed contaminated solids from the property.	Added Sewer to Preventive Maintenance Program		Added mainline to 6-month high frequency flushing program. Work order # 1512575.		03/21/2024 20:30	Responding sewer crew flushed the mainline and removed fog (fats, oil, and grease) combined with debris-wipes blockage restoring the flow in the line. CCTV inspection work order #1512569 has been created to find other potential causes of the overflow.		CCTV inspection work order #1512569 has been created to find other potential causes of the overflow.	03/29/2024 10:10														N/A	Added mainline to 6-month high frequency flushing program. Work order # 1512575.	Added mainline to 6-month high frequency flushing program. Work order # 1512575.	N/A	CCTV inspection work order #1512569 has been created to find other potential causes of the overflow.	N/A	Added mainline to 6-month high frequency flushing program. Work order # 1512575. CCTV inspection work order #1512569 has been created to find other potential causes of the overflow.	Added mainline to 6-month high frequency flushing program. Work order # 1512575.	CCTV inspection work order #1512569 has been created to find other potential causes of the overflow.	
3	3SSO10287	Active	Marina Coast CS	Marina Coast WD	894113	1.5	Certified	Derek Cray	Operations & Maintenance Manager		27-MAR-24	27-MAR-24	Monthly Category 3 Spill	Imjin/Preston Dr	03/19/2024 10:32	03/19/2024 10:38	03/19/2024 10:31				The spill originated from a sewer force main clean out which was damaged by construction activity. 	36.66897	-121.77005	Other (specify below)	Spill appearance point originated from a sewer force main maintenance cleanout. 		572	The spill was contained by utilizing dirt berms which were set in place by the contractor who was already on site performing grading work at the time the sewer force main clean out was hit.	N						210	Unpaved Surface		The spill originated from a sewer force main cleanout which was damaged by the contractor during their grading work. While using a bobcat to grade, the operator heard and felt a pop and immediately stopped his work. Once he seen the sewage, which was approximately one minute later, he utilized the bobcat to build a dirt berm and contain the spill.  	Y	36.66898	-121.77006							03/19/2024 10:38	The volume was calculated by measuring the length of 8in force main which included the stub out to the damaged clean out. Operators also confirmed the lift station pumps were not running at the time of the spill. 8in force main 8/12=.666   .785 x .666 x .666 x 219.9 x 7.48=572.72 gallons.	The start time was collected during our investigative conversation with the equipment operator who was onsite and witnessed the start of the spill.	Damage by Others Not Related to Collection System Construction/Maintenance		Other (specify below)	Maintenance cleanout off of the force main.	Polyvinyl Chloride (PVC)		25	All sewage was contained within the dirt area located approximately 275ft N/E of the intersection of Imjin and Preston Dr. Dirt berms were constructed by the equipment operator who was already onsite which contained all the spill from migrating further from its spill origination point. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below)	All sewage was contained on an unpaved surface with the dirt berm constructed by the onsite equipment operator. 	Spill containment consisted of the immediate installation of dirt berms by the onsite equipment operator. Clean up required the use of a vac truck to remove all standing sewage. The area was lightly misting with cl2. Water and cl2 used for clean up were both removed by the vac truck. 	Other (specify below); Plan Rehabilitation or Replacement of Sewer	A permanent repair was made to the cleanout out. The District is coordinating with the contractor and the city on a long term solution to reroute and abandon areas that will be within their future project area. 	This area is currently part of the city�s road widening project. The force main was damaged as a result of their construction work. The District is currently working with the city and contractor to address the now required system changes.  		03/19/2024 12:45	The spill was caused as a result of the city�s road widening construction activity. The equipment operator, who caused damage to the sewer force main clean out while grading, heard the break and immediately began to utilize the dirt in his work area to create dirt berms to contain the sewage which minimized the impact to surrounding areas. The lift station was not in a pumping cycle which confirmed all sewage spilled was the calculated volume from the cleanout, up to the ARV location which is the high point.  		N/A, the spill was caused by construction work.	03/19/2024 12:45														N/A	The District is currently working with the city and contractor to address the now needed system changes within the location of the City's road widening project. 	N/A, the spill was caused by construction activity. 	The District is actively working with the City and contractor on design changes to the force main in areas affected by the widening project. 	A permanent repair was made to the clean out. 	No Capital Improvement Project is identified or required for this force main.  Relocation of parts of the force main may be required due to on-going construction activities as part of the City's roadway widening project. 	N/A	N/A	N/A, the spill was caused by construction work.	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	893340	3.1	Certified	Kent Vian	Asst. Deputy Director	07-FEB-24	22-MAR-24	22-MAR-24	Category 1 Spill	NOT# 40201062246 AT 825 N. HARBOR DR.	02/06/2024 13:00	02/06/2024 13:00	02/06/2024 12:00	02/06/2024 13:02	24-0746	22-MAR-24	SPILL ORIGINATION WAS FROM MULTIPLE LOCATIONS ALONG HARBOR DR AND A JUNCTION STRUCTURE BELOW THE I5 & I8 FREEWAY.	32.76025	-117.20408	Inside Building or Structure; Manhole	N/A	N/A	77050	MANHOLES Junction Structure (MH1)            10205121 700 W Harbor Dr                         10661724        LATERALS 700 W. HARBOR DR.                   10661724 4236 VENUS ST.                          10970758 1205 PACIFIC HWY.                     10638294 285 J STREET                               10475415	Y	THE SEWER HIT A STORM DRAIN AND THE OUTFALL WAS SAN DIEGO BAY. THE SPILL ALSO ENTERED THE SAN DIEGO RIVER.	0	0	THE DISCHARGE POINT WAS INTO THE SAN DIEGO BAY AND SAN DIEGO RIVER.	72650	4400	Building or Structure; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface	N/A	MULTIPLE SPILL APPEARANCE POINTS, INCLUDING INSIDE BUILDINGS AT 700 W. HARBOR DR., 285 J ST., AND 1205 PACIFIC HWY. THERE WERE ADDITIONAL SPILL APPEARANCE POINTS COMING FROM A MANHOLE IN FRONT OF 700 W. HARBOR DR. AND A JUNCTION STRUCTURE LOCATED BELOW THE I-5 AND I-8 JUNCTION.	Y	32.71151	-117.1696	32.71169	-117.16952	32.71809	-117.17069	32.75961	-117.20416	02/06/2024 14:20	VISUAL CALCULATED METHOD.	THE ASSUMPTION OF SPILL START TIME WAS WHEN CREWS HAD RECEIVED CALLS THAT THE BUILDINGS WERE FLOODING AND VISUAL OBSERVATIONS OF THE SPILL.	Flow Exceeded Capacity (Separate Collection System Only); Natural Disaster (specify below); Rainfall Exceeded Design, I and I (Separate Collection System Only)	THE CITY OF SAN DIEGO SUFFERED A HISTORIC RAIN EVENT ON FEBRUARY 5 AND 6. THE EVENT DROPPED A HISTORIC AMOUNT OF RAIN OVER TWO DAYS ALONG THE SAN DIEGO RIVER WATERSHED, CAUSING SEVERE INFLOWS INTO THE WASTEWATER CONVEYANCE SYSTEM, OVERWHELMING THE SYSTEM AND CAUSING OVERFLOWS.	Lower Lateral; Manhole; Other (specify below)	SYSTEM-DESIGNED OVERFLOW STRUCTURES TO RELIEVE THE SYSTEM OF SURCHARGE WHEN INFLOW EXCEEDS SYSTEM DESIGN CAPACITY.	Concrete	N/A	60	THE IMPACTS OF THE SPILL WERE TO SURFACE WATERS�NO OTHER ADVERSE EFFECTS NOTED AT THIS TIME.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	SPILL RESPONSE ACTIVITIES WERE TO MONITOR THE SEWER RELEASE FROM THE OVERFLOW STRUCTURES, MANHOLES AND LATERALS UNTIL THE CATASTROPHIC RAIN EVENT ENDED AND THE SURCHARGED COLLECTION SYSTEM CAUGHT UP TO CONVEY FLOW. CLEAN-UP EFFORTS WERE CONDUCTED ON 2/07/2024 USING VACUUM TRUCKS AND RESTORATION CONTRACTORS.	Other (specify below)	WAITED FOR THE CATASTROPHIC RAIN EVENT TO END AND THE SURCHARGED COLLECTION SYSTEM TO CATCH UP.	LIMIT SOURCES OF I & I TO PREVENT THE SYSTEM FROM BEING OVERWHELMED BY SEVERE RAIN EVENTS.	TBD	02/06/2024 18:00	CATASTROPHIC RAIN EVENT	N	N/A		SAN DIEGO BAY, PACIFIC OCEAN.	Ocean; River	N/A	THE PACIFIC OCEAN IS ONE OF SEVEN OCEANS THAT COVER NEARLY THREE-FOURTHS OF THE SURFACE OF THE EARTH. 	NO KNOWN IMPACTS TO AQUATIC LIFE.	Public Closure	N/A	DEPARTMENT OF ENVIORNMENTAL HEALTH	3	N	Y	SEE ATTACHED	SEE ATTACHED									N/A	
4	4SSO10421	Active	Redondo Beach City CS	Redondo Beach City	894114	1.3	Certified	Geraldine Trivedi	Civil Engineer	22-MAR-24	22-MAR-24	22-MAR-24	Category 1 Spill	655 N. Harbor Drive	03/20/2024 06:57	03/20/2024 07:12	03/20/2024 06:40	03/20/2024 08:33	24-1657	22-MAR-24	33.849850, -118.396010 Manhole in street, near the intersection of N. Harbor Drive & Portofino Way	33.84985	-118.39601	Manhole			241	The spill was located in N. Harbor Drive street/bike path and gutter at the intersection of Portofino Way in the City of Redondo Beach.	Y	The spill reached a small catch basin adjacent to King Harbor Marina.	191	50	The 50 gallons that wasn't recovered discharged into the King Harbor Marina. The area where the SSO discharged into is a quiet, small craft boater marina with no swimmers or human water activities taking place.  	50	191	Surface Water		33.849850, -118.396010 The spill was released near 655 N. Harbor Drive and the intersection of Portofino Way in Redondo Beach.	Y	33.84985	-118.39601							03/20/2024 06:55	The spill volume was estimated using actual measurements in the field of the actual spill area.   The City's trained Public Works crew measured the area and calculated the spill volume.	The data relied on for the spill start and end time was from Public Works field crew observations and a contracted City consultant's observation.  Pictures were also used.	Construction Diversion Failure; Damage by Others Not Related to Collection System Construction/Maintenance		Manhole		Concrete		50	33.849850, -118.396010 The spill was released near 655 N. Harbor Drive and the intersection of Portofino Way in Redondo Beach.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Contained the spill, cleaned up the spill using a Vactor truck, repaired the failed sewer bypass diversion for the construction project.	Other (specify below)	Sewer bypass that failed due to contractor error was address directly with contractor. 	Contained the spill, cleaned up the spill using a Vactor truck, repaired the failed sewer bypass diversion for the construction project.	Contractor to provide oversight and proper installation of sewer bypass.	03/20/2024 09:15	City contractor constructing a new sanitary sewer pump station required dewatering and a temporary sanitary sewer bypass.  The temporary sewer bypass failed when a hose used for the diversion became loose and allowed flow into the street. 	N			Santa Monica Bay/King Harbor Marina	Ocean		Santa Monica Bay/King Harbor Marina	none	Other (specify below)	Discharge flowed into a marina basin area with docks with small boats.  No people were present, and no water contact activities take place in this area of the marina. City staff monitored the area for any people in the area. 	City of Redondo Beach	0	N	N												
5S	5SSO11054	Active	South Placer Mud CS	South Placer MUD	894116	1.1	Certified	Eric Nielsen	Superintendent		28-MAR-24	28-MAR-24	Monthly Category 3 Spill	N13-F05_Loomis	02/05/2024 10:53	02/05/2024 11:09	02/05/2024 09:09				See Attached Spill Summary	38.826	-121.18583	Lateral Clean Out (Public)			60	See Attached Spill Summary	N						2	Unpaved Surface		See Attached Spill Summary										02/05/2024 11:09	See Attached Spill Summary	See Attached Spill Summary	Root Intrusion		Gravity Mainline		Vitrified Clay		63	See Attached Spill Summary	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		See Attached Spill Summary	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		See Attached Spill Summary		02/05/2024 13:31	See Attached Spill Summary		N/A	03/05/2024 13:31														N/A	N/A	See Attached Spill Summary	See Attached Spill Summary	See Attached Spill Summary	N/A	See Attached Spill Summary	See Attached Spill Summary	N/A	
5F	5SSO11296	Active	Fresno Co 34-Millerton New Town CS	County of Fresno	894122	1.1	Certified	Eva Frias	Program Technician		25-MAR-24	25-MAR-24	Monthly Category 3 Spill	Corner of Marina Drive and Ruscello Lane	03/21/2024 07:20	03/21/2024 07:25	03/21/2024 07:10				There are three photos attached.  The first is of the lift station that had the spill. The sewage came up through the manhole and went onto the street. Second photo: The sewage flowed across the street into the stormwater collection vault. Third photo: The stormwater collection vault that the sewage flowed into, which is lined and kept the sewage self-contained.	36.97866	-119.66375	Manhole		Spilled into the storm water collection vault	120	There are three photos attached.  The first is of the lift station that had the spill. The sewage came up through the manhole and went onto the street. Second photo: The sewage flowed across the street into the stormwater collection vault. Third photo: The stormwater collection vault that the sewage flowed into, which is lined and kept the sewage self-contained.	N						120	Groundwater Infiltration Basin or Facility		The sewage came up through a manhole and spilled across the street into a lined stormwater collection vault	Y	36.97855	-119.66378							03/21/2024 10:43	Central State Sanitation was called out to pump the sewage from the storm water collection vault.  The storm water collection vault was left empty without any liquid volume.  Total number of gallons recovered were 120 gallons.	We relied upon the meter used by the vendor, Central State Sanitation.	Other (specify below); Pump Station Failure - Mechanical	Software failure-the high alarm notification did not call out to the operator on standby.	Pump Station - Controls		Concrete		20	None	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below)	Disinfected the street and the storm water collection vault with a strong chlorine solution. 	Field staff immediately moved the setting to manual mode and pumped the sewage level down to prevent any more spilling out of the manhole.  Then Central State Sanitation was called to pump all of the sewage from the storm water collection vault.  Disinfection of the road and storm water collection vault was part of the cleanup. 	Repaired Facilities or Replaced Defect		Staff called out AC Electric to assess where the system failed.  Staff will continue monitor closely until the repairs are made. 		03/21/2024 10:43	The cause of the spill was due to the lift station operating with only one pump vs two pumps.  One pump had failed. The replacement pump was purchased and in the process of being scheduled to be installed.  The pump in operation became clogged or  ragged up  and stopped working.  The rags have been removed from the pump and it is now operating as it should.		Yes, until resolved. 	03/27/2024 12:00														Reported the spill to CalOES, CVRWB, Fresno County Environmental Health and California Department of Fish and Wildlife.	Mechanical error.	Will consult with AC Electric on how often service is required.	N/A	Scheduled	N/A	N/A	No change.	Yes, until resolved. 	
5S	5SSO10867	Active	Arbuckle CS	Arbuckle PUD	894126	1.1	Ready to Certify						Monthly Category 3 Spill	baley rd.	03/21/2024 13:09	03/21/2024 13:08	03/21/2024 10:00				waste water treatment plant.	39.03018	-122.05743	Other (specify below)	pound overflowed and spilled out off the property.		750	n/a	Y	the spill went into a dry creek that runs behind the property.	0				0	Other (specify below)	spill went into a dry creek.	spill went into a dry creek and has percolated into the ground.	Y	39.030018	-122.056873							03/21/2024 13:08	flow monitoring	flow monitoring	Collection System Maintenance Failure (specify below)	pound overfilled 	Other (specify below)	pound overfilled	Vitrified Clay		35	spill went to a dry creek and pound was switched to another pound as soon as the spill was noticed.	N	Contained All or Portion of Spill		water dryed up in the dry creek.	Adjusted Schedule/Method of Preventive Maintenance		monitor the pound leavels more closely		03/22/2024 13:43	pound overfilled.		n/a	03/22/2024 13:43														water dryed up with in a couple of hours.	monitor pounds more frequently.	monitor pounds more frequently.	n/a	n/a	n/a	n/a	monitor more frequently	n/a	
5S	5SSO20010	Active	Arbuckle CS	Arbuckle PUD	894126	1.1	Ready to Certify						Monthly Category 3 Spill	baley rd.	03/21/2024 13:09	03/21/2024 13:08	03/21/2024 10:00				waste water treatment plant.	39.03018	-122.05743	Other (specify below)	pound overflowed and spilled out off the property.		750	n/a	Y	the spill went into a dry creek that runs behind the property.	0				0	Other (specify below)	spill went into a dry creek.	spill went into a dry creek and has percolated into the ground.	Y	39.030018	-122.056873							03/21/2024 13:08	flow monitoring	flow monitoring	Collection System Maintenance Failure (specify below)	pound overfilled 	Other (specify below)	pound overfilled	Vitrified Clay		35	spill went to a dry creek and pound was switched to another pound as soon as the spill was noticed.	N	Contained All or Portion of Spill		water dryed up in the dry creek.	Adjusted Schedule/Method of Preventive Maintenance		monitor the pound leavels more closely		03/22/2024 13:43	pound overfilled.		n/a	03/22/2024 13:43														water dryed up with in a couple of hours.	monitor pounds more frequently.	monitor pounds more frequently.	n/a	n/a	n/a	n/a	monitor more frequently	n/a	
5S	5SSO10867	Active	Arbuckle CS	Arbuckle PUD	894127	1.3	Ready to Certify						Monthly Category 3 Spill	baley rd.	03/21/2024 13:09	03/21/2024 13:08	03/21/2024 10:00				waste water treatment plant.	39.03018	-122.05743	Other (specify below)	pound overflowed and spilled out off the property.		750	n/a	Y	the spill went into a dry creek that runs behind the property.	0				0	Other (specify below)	spill went into a dry creek.	spill went into a dry creek and has percolated into the ground.		39.030018	-122.056873							03/21/2024 13:08	flow monitoring	flow monitoring	Collection System Maintenance Failure (specify below)	pound overfilled 	Other (specify below)	pound overfilled	Vitrified Clay		35	spill went to a dry creek and pound was switched to another pound as soon as the spill was noticed.	N	Contained All or Portion of Spill		water dryed up in the dry creek.	Adjusted Schedule/Method of Preventive Maintenance		monitor the pound leavels more closely		03/22/2024 13:43	pound overfilled.		n/a	03/22/2024 13:43														water dryed up with in a couple of hours.	monitor pounds more frequently.	monitor pounds more frequently.	n/a	n/a	n/a	n/a	monitor more frequently	n/a	
5S	5SSO20010	Active	Arbuckle CS	Arbuckle PUD	894127	1.3	Ready to Certify						Monthly Category 3 Spill	baley rd.	03/21/2024 13:09	03/21/2024 13:08	03/21/2024 10:00				waste water treatment plant.	39.03018	-122.05743	Other (specify below)	pound overflowed and spilled out off the property.		750	n/a	Y	the spill went into a dry creek that runs behind the property.	0				0	Other (specify below)	spill went into a dry creek.	spill went into a dry creek and has percolated into the ground.		39.030018	-122.056873							03/21/2024 13:08	flow monitoring	flow monitoring	Collection System Maintenance Failure (specify below)	pound overfilled 	Other (specify below)	pound overfilled	Vitrified Clay		35	spill went to a dry creek and pound was switched to another pound as soon as the spill was noticed.	N	Contained All or Portion of Spill		water dryed up in the dry creek.	Adjusted Schedule/Method of Preventive Maintenance		monitor the pound leavels more closely		03/22/2024 13:43	pound overfilled.		n/a	03/22/2024 13:43														water dryed up with in a couple of hours.	monitor pounds more frequently.	monitor pounds more frequently.	n/a	n/a	n/a	n/a	monitor more frequently	n/a	
5F	5SSO10771	Active	Tuolumne Utilities District CS	Tuolumne Utilities District	894134	1.1	Certified	Rich Pitcher	Collection Superintendent		27-MAR-24	27-MAR-24	Monthly Category 3 Spill	154 W Stockton  St.	02/15/2024 13:00	02/15/2024 13:05	02/15/2024 12:50				Photographs have been attached. GPS coordinates are included in lines 6a and 6b. This spill had only one appearance point. 	37.983219	-120.385177	Manhole	n/a	n/a	108	The spill originated from a manhole in the middle of Stockton St over to a gutter and puddled in a parking lot. 	N	Not applicable.	0				20	Street/Curb and Gutter (2 3); Unpaved Surface	Not applicable	The final spill destination was approximately 150' downstream from the manhole. 	Y	37.98265	-120.38618							02/15/2024 13:20	The spill volume was calculated by using the Orange County Sewer Spill Guide. We used a wet asphalt depth of .0026x12'x12' area as well as .0026x6 x75' area. The spill volume recovered was calculated us the LxWxD formula.	After speaking with the customer who had called the sewer spill in to us, we believe the start time to be around 1250 hours. This is a busy section of road with lots of traffic and pedestrians so a spill like this would usually be called in quickly. We also had collections crews driving through this exact area around 1240 hours and they did not see any issues around that time.	Debris from Construction	not applicable	Gravity Mainline	not applicable	Other (specify below); Vitrified Clay	A 2' Pipe Patch had been installed	70	There was no environmental impact of the spill.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow	Disinfected area effected by the spill.	Operators arrived on site and immediately began sandbagging the gutter to contain the spill. Once they had the sandbags in place they were able to collect the spilled sewer with a vacuum truck. Once flagging was set up, the operators were able to use the vacuum truck to evacuate the manhole of all sewer. Afterwards the line was jetted to remove any debris and the spill area was disenfected, rinsed and all excess water was collected. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause	N/A	This section of line is regularly cleaned annually. This line will now be added to our Semi-Annual Cleaning schedule and Manhole #368 will be visually inspected on a quarterly basis. 		02/15/2024 16:00	Our investigation found that the spill was caused by a large amount of rocks and debris that had collected in our line. We believe the rocks and debris entered our mainline through a private sewer lateral that was damaged by a private contractor working for the City of Sonora nearby. 		No further investigation is necessary.	02/15/2024 16:00														None.	This section of line is regularly cleaned annually. This line will now be added to our Semi-Annual Cleaning schedule and Manhole #368 will be visually inspected on a quarterly basis. 	This section of line is regularly cleaned annually. This line will now be added to our Semi-Annual Cleaning schedule and Manhole #368 will be visually inspected on a quarterly basis. 	No planned rehab/replacement necessary.	We inspected the line with CCTV and found no damage or defects in need of repair.	None.	Attached is the modified Semi-Annual cleaning schedule.	There is no necessary modifications to our spill response.	No further investigation is necessary.	
5S	5SSO10867	Active	Arbuckle CS	Arbuckle PUD	894136	1.1	Ready to Certify						Monthly Category 3 Spill	baley rd.	03/23/2024 08:30	03/25/2024 08:45	03/25/2024 08:25				n/a	39.03034	-122.05675	Pump Station			200	water left east side of property.	N						0	Other (specify below)	water went outside of the fence to neiboring property.	power outage caused pumps to shut down.	Y	39.03024	-122.05681							03/23/2024 09:20	flow monitoring.	power falure alarm.	Pump Station Failure - Power		Pump Station - Power		Vitrified Clay		35	power outage.	N	Mitigated Effects of Spill (specify below)	block the water from exiting. 	water dryed up quickly.	Other (specify below)	called eletirc company to restor power.	n/a		03/25/2024 08:48	power outage in power lines.		n/a	03/23/2024 10:20														no	have a genorator for back up power.	n/a	n/a	n/a	n/a	n/a	n/a	n/a	
5S	5SSO20010	Active	Arbuckle CS	Arbuckle PUD	894136	1.1	Ready to Certify						Monthly Category 3 Spill	baley rd.	03/23/2024 08:30	03/25/2024 08:45	03/25/2024 08:25				n/a	39.03034	-122.05675	Pump Station			200	water left east side of property.	N						0	Other (specify below)	water went outside of the fence to neiboring property.	power outage caused pumps to shut down.	Y	39.03024	-122.05681							03/23/2024 09:20	flow monitoring.	power falure alarm.	Pump Station Failure - Power		Pump Station - Power		Vitrified Clay		35	power outage.	N	Mitigated Effects of Spill (specify below)	block the water from exiting. 	water dryed up quickly.	Other (specify below)	called eletirc company to restor power.	n/a		03/25/2024 08:48	power outage in power lines.		n/a	03/23/2024 10:20														no	have a genorator for back up power.	n/a	n/a	n/a	n/a	n/a	n/a	n/a	
5S	5SSO10867	Active	Arbuckle CS	Arbuckle PUD	894137	1.1	Ready to Certify						Monthly Category 3 Spill	baley rd.	03/23/2024 08:30	03/25/2024 08:45	03/25/2024 08:25				n/a	39.03034	-122.05675	Pump Station			200	water left east side of property.	N						0	Other (specify below)	water went outside of the fence to neiboring property.	power outage caused pumps to shut down.		39.03024	-122.05681							03/23/2024 09:20	flow monitoring.	power falure alarm.	Pump Station Failure - Power		Pump Station - Power		Vitrified Clay		35	power outage.	N	Mitigated Effects of Spill (specify below)	block the water from exiting. 	water dryed up quickly.	Other (specify below)	called eletirc company to restor power.	n/a		03/25/2024 08:48	power outage in power lines.		n/a	03/23/2024 10:20														no	have a genorator for back up power.	n/a	n/a	n/a	n/a	n/a	n/a	n/a	
5S	5SSO20010	Active	Arbuckle CS	Arbuckle PUD	894137	1.1	Ready to Certify						Monthly Category 3 Spill	baley rd.	03/23/2024 08:30	03/25/2024 08:45	03/25/2024 08:25				n/a	39.03034	-122.05675	Pump Station			200	water left east side of property.	N						0	Other (specify below)	water went outside of the fence to neiboring property.	power outage caused pumps to shut down.		39.03024	-122.05681							03/23/2024 09:20	flow monitoring.	power falure alarm.	Pump Station Failure - Power		Pump Station - Power		Vitrified Clay		35	power outage.	N	Mitigated Effects of Spill (specify below)	block the water from exiting. 	water dryed up quickly.	Other (specify below)	called eletirc company to restor power.	n/a		03/25/2024 08:48	power outage in power lines.		n/a	03/23/2024 10:20														no	have a genorator for back up power.	n/a	n/a	n/a	n/a	n/a	n/a	n/a	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	894155	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		02-APR-24	02-APR-24	Monthly Category 3 Spill	2027 North San Ysidro Drive	03/23/2024 02:54	03/23/2024 05:27	03/23/2024 05:56				Sewer Maintenance Hole Overflowing.	34.107908	118.424083	Manhole	None.	None.	370	Pictures Of A Sewer Maintenance Hole Overflowing.	N	None.	0				0	Paved Surface		The crew was able to establish containment and subsequently returned the entire amount to the sanitary sewer system. 		34.107908	118.424083							03/23/2024 05:56	Spill flowrate and volume determination based on flowout pickhole or opening Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening1inches Flowrate per pickole/opening (gpm)2gpm # of pickholes/openings1 Total flowrate (gpm)2gpm Duration of spill (minutes)182minutes Total flow (gallons)370gallons 	Spill flowrate and volume determination based on flowout pickhole or opening Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening1inches Flowrate per pickole/opening (gpm)2gpm # of pickholes/openings1 Total flowrate (gpm)2gpm Duration of spill (minutes)182minutes Total flow (gallons)370gallons 	Root Intrusion		Gravity Mainline		Vitrified Clay		69	It was estimated that approximately 370 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently returned the entire amount to the sanitary sewer system. 	N	Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		The crew removed the blockage and the backup ceased at 5:56 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 5:56 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  		03/23/2024 05:56	On Saturday, March 23, 2024, at 2:54 AM., the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 2027 North San Ysidro Drive (TG 592-D3). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 5:56 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.    It was estimated that approximately 370 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently returned the entire amount to the sanitary sewer system.  		Pipeline Will Be Placed On Semi-Annual Maintenance Schedule.	03/23/2024 05:56														None At This Time.	Pipeline Will Be Placed On Semi-Annual Maintenance Schedule.	Pipeline Will Be Placed On Semi-Annual Maintenance Schedule.	None At This Time.	None At This Time.	None At This Time.	Pipeline Will Be Placed On Semi-Annual Maintenance Schedule.	On Saturday, March 23, 2024, at 2:54 AM., the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 2027 North San Ysidro Drive (TG 592-D3). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 5:56 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.    It was estimated that approximately 370 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently returned the entire amount to the sanitary sewer system.   Pipeline Will Be Placed On Semi-Annual Maintenance Schedule.	Pipeline Will Be Placed On Semi-Annual Maintenance Schedule.	
3	3SSO10265	Active	El Estero CS	Santa Barbara City PWD	894161	1.2	Certified	Esteban Zambrano	WWC Superintendent 		27-MAR-24	27-MAR-24	Monthly Category 3 Spill	216 Calle Manzanita	02/04/2024 18:00	02/04/2024 18:15	02/04/2024 16:00				The city experienced a wet weather SSO event at 216 Calle Manzanita. 	34.44356	-119.72872	Lateral Clean Out (Private)			450	The spill was contained and saturated the ground in the backyard of 216 Calle Manzanita. The property owner told the responding team that the SSO began at 1600 and stopped at 1645 when the rain subsided. The spill lasted for about 45 minutes. The property owner took a short video, and the responding team calculated SSO discharging from a private clean out at 10 GPM.	N						0	Other (specify below)	Landscape in the backyard of 216 Calle Manzanita. 	The spill was contained and saturated the ground in the backyard of 216 Calle Manzanita.	Y	34.44351	-119.72869							02/04/2024 16:45	The property owner at 216 Calle Manzanita told the responding team that the SSO began at 1600 and stopped at 1645 when the rain subsided. The spill lasted for about 45 minutes. The property owner took a short video of the spill. The responding team calculated the SSO discharging from the private clean out at 10 GPM. Information from Smart Cover shows an interruption in the flow between 1611 and 1631. The Smart Cover is located about 1000 FT from the SSO discharge point.	The property owner at 216 Calle Manzanita told the responding team that the SSO began at 1600 and stopped at 1645 when the rain subsided. The spill lasted for about 45 minutes. The property owner took a short video of the spill. The responding team calculated the SSO discharging from the private clean out at 10 GPM. Information from Smart Cover shows an interruption in the flow between 1611 and 1631. The Smart Cover is located about 1000 FT from the SSO discharge point.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Gravity Mainline		Other (specify below)	Rehabilitation on 12/31/2002	22	The city experienced a wet weather SSO event at 216 Calle Manzanita. The spill was contained at 216 Calle Manzanita (residential property). The spill saturated the ground in the backyard of 216 Calle Manzanita.	Y	Other (specify below); Property Owner Notified	MH inspections, Jetscan, Smoke test, CCTV sewer and storm drain for I&I	The spill had stopped by the time the responding team arrived at the location at 1815. The spill had already saturated the ground.	Other (specify below)	Install SmartCover and  Smoke test. 	Install SmartCover at the upstream MH from SSO to investigate I&I. Smoke test the upper basins from the spill location and install SmartCovers and CCTV. Outreach to the public regarding I&I. Work with different divisions to reduce illegal connections to the sewer system. 		02/09/2024 13:35	At the time of the response, city staff believed the spill was a PLSD. After further investigation from 2/4/24 through 2/9/24, the responding team concluded it was an SSO due to the wet weather event on 2/4/24. City staff CCTV on 2/5/24, Smoke tested on 2/8/24, Jetscan on 2/9/24, and CCTV the storm drain to confirm rain gutter discharge locations. The property drain system discharges at the curb and cutter.		At the time of the response, city staff believed the spill was a PLSD. After further investigation from 2/4/24 through 2/9/24, the responding team concluded it was an SSO due to the wet weather event on 2/4/24. City staff CCTV on 2/5/24, Smoke tested on 2/8/24, Jetscan on 2/9/24, and CCTV the storm drain to confirm rain gutter discharge locations.	02/09/2024 11:09														N/A	Install SmartCover at the upstream MH from SSO to investigate I&I. Smoke test the upper basins from the spill location and install SmartCovers and CCTV. Outreach to the public regarding I&I. Work with different divisions to reduce illegal connections to the sewer system. 	Spill due to wet weather event. 	Sewer main associated with the spill was rehabilitated on 12/31/2002. 	The sewer main associated with the spill was rehabilitated on 12/31/2002.  The sewer main returned no defects per CCTV. 	N/A	See SmartCover Map. 	N/A	At the time of the response, city staff believed the spill was a PLSD. After further investigation from 2/4/24 through 2/9/24, the responding team concluded it was an SSO due to the wet weather event on 2/4/24. City staff CCTV on 2/5/24, Smoke tested on 2/8/24, Jetscan on 2/9/24, and CCTV the storm drain to confirm rain gutter discharge locations.	
5S	5SSO10901	Active	City of Sacramento Utilities CS	Sacramento City	894166	1.2	Certified	Kevin Guerra	Superintendent		27-MAR-24	27-MAR-24	Monthly Category 3 Spill	716 Rivercrest Drive Sacramento, Ca. 95831	02/10/2024 11:51	02/10/2024 12:06	02/10/2024 06:00				The spill appearance point was a manhole in the street. on Rivercrest Drive.	38.51458	-121.53416	Manhole			90	Spill traveled south from the manhole to a drain inlet to the West and then traveled East to where it was trapped in a drainage main.	Y	The spill entered drainage mains that travel to a sump station, that discharges into the Sacramento River. 	90				90	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		Spill entered a  drain inlet and traveled in a drainage main to where it was captured and returned to the sewer system.	Y	38.51456	-121.53448	38.51474	-121.53328					02/10/2024 12:23	We estimated the spill total using an equation for what was trapped on the ground measuring length multiplied by width multiplied by depth. And added this total to what we estimated to be trapped in the drainage mains. We used a pipe volume calculation to get this total.	The  person who reported the spill had a ring camera and could see the manhole where the spill came from. At 6AM the spill became visible in the video they had recorded. Our responder documented the time that the main was unplugged to get the spill end time.	Root Intrusion		Gravity Mainline		Vitrified Clay		59	There were no impacts to the area or sewer service.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	The spill area on the surface was washed down and we cleaned and vacuumed the drainage system. All of the spill was returned to the wastewater system.	The spill was had reached the drain inlet and was slow exiting the manhole. The responder got a picture and moved on to unplug the main. Drainage crews were called out to assist in the cleanup. The area was washed down and the drainage mains were cleaned and vacuumed to return the spill to the sewer system.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		The spill was rodded and jet cleaned to remove roots and the grease build up. It has now been added to annual root removal work orders. The jet cleaning work order was late and will not be adjusted ass the spill would not have occurred if it was cleaned on time.		02/10/2024 15:30	We used our CCTV equipment to inspect the main segment that plugged, and we found that it had roots in several joints. These joints also had grease to build up in those areas.  We researched the main segment in our CMMS system and found this main was on a cleaning work order that was late. The research also showed that after previous inspections a rod work order would be created and completed, but never cycled annually. We have now created a cycled rod work order that will be due annually and we did not adjust the cleaning schedule due to it being cleaned late. After the investigation we had the main rodded, and completed the cleaning work order for this main and the surrounding assets.		N/A	02/12/2024 09:12														N/A	We added the mains in the area to an annual work order that is cycled automatically for root removal.	We did not adjust the cleaning schedule as we were significantly late on the work order. We did add it to annual Rodding that will eliminate the root problem.	N/A	N/A	N/A	N/A	N/A	N/A	
5S	5SSO11001	Active	Modesto CS	Modesto City	894167	1.1	Certified	Robert Englent	Wastewater Collection System Superintendent		25-APR-24	25-APR-24	Monthly Category 3 Spill	437 Enslen Park Ct.	03/24/2024 13:05	03/24/2024 14:25	03/24/2024 13:05				Lamp hole in the street in front of 437 Enslen Park Ct.	37.6515	-121.00003	Other (specify below)	Sewer 6 inch lamp hole. 		158	Starting from 437 Enslen Park Ct, the spill traveled down the gutter approx. 140 ft. and then flowed West on the North side of W. Morris Ave. approx. 500 ft. where it entered catch basin SD024612. The sewer then entered SD024611 through a cross pipe and flowed back into sewer MHSS004549 due to a cross connection. 	Y	Sewer traveled down the gutter to catch basin SD02612.	158				158	Drainage Conveyance System; Other (specify below); Street/Curb and Gutter (2 3)	Cross connection to sewer system	Starting from 437 Enslen Park Ct, the spill traveled down the gutter approx. 140 ft. and then flowed West on the North side of W. Morris Ave. approx. 500 ft. where it entered catch basin SD024612. The sewer then entered SD024611 through a cross pipe and flowed back into sewer MHSS004549 due to a cross connection. 	Y	37.6515	-121.00004	37.65113	-121.00014	37.65117	-121.00173			03/24/2024 15:43	See Attachment for calculations	The spill start time was determined by time that someone made an anonymous complaint on the City  Go Modesto  app. The spill end time was determined by the time that the cleaning crew broke the stoppage.  	Root Intrusion		Gravity Mainline		Vitrified Clay		112	See Attachment:  Illicit Discharge Report	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Arrived on scene at 2:25 PM and contained flow with sand bags. Called assist crew and ECS. Sewage was spilling from the lamp hole in front on 437 Enslen Park Ct. and ran down gutter on W. Morris Ave. to catch basin SD024612. Assist crew broke stoppage 35' upstream from MHSS004569 on W. Morris Ave. at Park Ave at 3:43pm. After main lines had drained they cleaned whole line. Assist crew washed and vacuumed 640' of gutter pan and cleaned out two catch basins. Catch basin is a cross connection that flows back to sewer MHSS004549.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Added root treatment PM	The cleaning PM for this line segment has been adjusted from a 2 year cleaning schedule to a 6 month cleaning schedule. A root treatment PM has been created and root foaming will take place in October 2024.		03/24/2024 19:32	Our CCTV crew inspected the line segment and found multiple joints with root intrusion. The line was recleaned and re-inspected. The line PM frequency has been modified from 2 years to 6 months.		N/A	03/25/2024 14:58														N/A	More frequent cleaning schedule and root treatment. 	Cleaning schedule has been adjusted from 2 years to 6 months.	N//A	Inspected line segment with CCTV.	N/A	See Attachments: Proof of cleaning adjustment. Proof of root PM creation. 	N/A	N/A	
5F	5SSO10772	Active	Twain Harte CSD CS	Twain Harte CSD	894174	1.1	Certified	Lewis Giambruno	Operations Manager		26-MAR-24	26-MAR-24	Monthly Category 3 Spill	22770 Tamarack 	03/26/2024 08:53	03/26/2024 09:07	03/26/2024 08:40				Spill originated in the sewer main caused by root intrusion and the appearance point was at the nearest customer lateral cleanout.	38.03388889	-120.22666667	Lateral Clean Out (Private)			155	The extent of the spill was kept near the customer lateral and was largely soaked up by the surrounding soil.	N						10	Unpaved Surface		The extent of the spill was kept near the customer lateral and was largely soaked up by the surrounding soil.	N									03/26/2024 09:24	Spill volume was calculated using approximate flow and duration	The estimation is based on customer discovery.	Root Intrusion		Gravity Mainline		Vitrified Clay		69	The extent of the spill was kept near the customer lateral and was largely soaked up by the surrounding soil.	N	Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow		We removed the accessible contaminated soil and disinfected area.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		This location will be added to our hotspot list and will be maintained more often. The location will be evaluated for relining or patching.		03/26/2024 10:40	The spill was visually confirmed to be caused by root intrusion in the sewer main.		None	03/26/2024 16:30														None	This location will be added to our hotspot list and will be maintained more often. The location will be evaluated for relining or patching.	This location will be added to our hotspot list and will be maintained more often. The location will be evaluated for relining or patching.	This location will be added to our hotspot list and will be maintained more often. The location will be evaluated for relining or patching.	This location will be added to our hotspot list and will be maintained more often. The location will be evaluated for relining or patching.	NA	NA	NA	None	
2	2SSO10105	Active	Central Contra Costa Sd CS	Central Contra Costa Sanitary District	894111	2.2	Certified	Paul Seitz	Collection System Division Manager	22-MAR-24	27-MAR-24	27-MAR-24	Category 1 Spill	5 Poppy Ln Orinda 	03/21/2024 09:06	03/21/2024 09:20	03/20/2024 16:45	03/21/2024 18:05	24-1707		Failure of the downstream coupling of a temporary repair. 	37.90444	122.17213	Gravity Mainline			4324	Spill traveled downstream in a tributary of Lauterwasser Creek to Lauterwasser Creek where is was captured and returned to the sanitary sewer system.	N				Spill exited an open joint of pipe into rip rap which was placed into creek bed to repair damage caused by previous years' storm.	4324	4324	Other (specify below)	Flowing creek	Spill started behind #5 Poppy Ln and flowed directly into a tributary of Lauterwasser Creek which flows into Lauterwasser Creek where we were able to contain it at the intersection of Lombardy Ln and Sleepy Hollow.	Y	37.90444	122.17216	37.9079	122.18048	37.90403	122.18972			03/21/2024 10:46	Spill was calculated using the flow rate and duration calculation: 4 gpm X 1081 mins= 4324 gallons	We asked reporting party what time they first noticed the spill to create a start time. We witnessed the flow rate and used our in house flow rate charts to determine the actual flow rate. We were able to contain and return the spill in it's entirety to the sanitary sewer system.	Other (specify below)	The downstream side of the pipe repair failed at the coupling due to heavy loading of rip rap to stabilize creek bed.	Gravity Mainline		Polyvinyl Chloride (PVC)		1	Based on an inspection conducted by a third party biologist, there was no negative impact on the creek or it's aquatic life.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		We immediately began bypass pumping to minimize spill volume. We  tested the creek to determine the complete reach of the spill and set up pumps downstream of that area. We pumped and flushed the creek with fresh water until a clean test was achieved.	Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect		We fixed the damaged connection and supported the mainline in preparation of a permanent replacement.	Temporary repair made, reported to Engineering dept for design and replacement. Will continue to monitor until replacement is made.	03/21/2024 08:05	The cause of the spill was confirmed as soon as we excavated and exposed the damaged connection.	N			Lauterwasser Creek	Stream/Creek		Stream	None observed	Other (specify below)	None at all	N/A	0	N	Y	Upstream, Site, Downstream	CBOD, Dissolved oxygen, Ph, Total residual chlorine, Ammonia, COD, Enterococcus, Total/fecal coliform, E-Coli										
5S	5SSO11001	Active	Modesto CS	Modesto City	894176	1.2	Certified	Robert Englent	Wastewater Collection System Superintendent		28-MAR-24	28-MAR-24	Monthly Category 3 Spill	1808 Fairfax Ave	02/29/2024 21:00	02/29/2024 21:20	02/29/2024 18:30				The spill originated from sewer MHSS007990 in the intersection of Fairfax Ave. and Serena Ave. 	37.66932	-120.96585	Manhole			170	Sewer spilled from MHSS007990 in the intersection of Fairfax Ave. and Serena Ave. The sewer water traveled 40 ft. N/W to catch basin SD004761, 40 ft. N/E to catch basin SD010125 and 40 ft. S/E to a catch basin with no asset number. 	Y	Catch basins SD004761, SD010125 and one catch basin on the South side of Fairfax Ave.  All catch basins are for rock well's.	136				136	Drainage Conveyance System; Groundwater Infiltration Basin or Facility; Street/Curb and Gutter (2 3)		Sewer spilled from MHSS007990 in the intersection of Fairfax Ave. and Serena Ave. The sewer water traveled 40 ft. N/W to catch basin SD004761, 40 ft. N/E to catch basin SD010125 and 40 ft. S/E to a catch basin with no asset number. 	Y	37.66942	-120.96579	37.66927	-120.96578	37.66943	-120.96591			02/29/2024 21:20	Jason and I spoke with a resident at 1808 Fairfax Ave to ask him to move his car and to ask him questions about the sewer spill. He gave his name as Ruben Ayala and said that he noticed the spill at 1830 and that it was barely trickling out of the manhole and heading in the direction of catch basins 10125 and 04761. Based on the narrative from the resident who saw the spill first hand and the fact that it was never overflowing when Jason or I were there I decided to estimate the spill volume by referencing pictures of the pick hole method. Although it was never overflowing when I was on site I used the description from Ruben Ayala and compared it to the pictures of the pick hole method and determined that it must have been flowing at 1 GMP.  See Attachment	 The start time was determined to be 1830 based on the observation from the resident. The end time was 2120 when Jason Dixon arrived as it was not overflowing when he got on site. 	Root Intrusion		Gravity Mainline		Vitrified Clay		58	See Attachment	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Call Duty Jason Dixon arrived at 920 pm. The spill was not active when I arrived. Spill end time 920 pm. Sandbagged storm drains and called assist/ECS and Bob E. LJR1 arrived at 1030 PM and broke the root stoppage at 1037 pm at 78 ft. They cleaned the line after it drained down. The assist crew then washed and vacuumed the street, catch basins and rock wells. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	The lateral for the property at 1816 Serena Ave. was put on a 6 month PM.	The heavy roots intruding into the main line from the connection to 1816 Serena Ave. have been removed and a 6 month PM that includes televising, snaking and root foaming has been created.		03/01/2024 12:00	Our CCTV crew found heavy roots intruding into the main line from the lateral connection from 1816 Serena Ave.		N/A	03/01/2024 09:23														N/A	Adding lateral PM 	Increased PM cleaning schedule from 18 months to 1 year.  Added CCTV PM to inspect line at 11 months to check accuracy of cleaning schedule.  Created 6 month lateral PM for root intrusion. 	N/A	N/A	N/A	See Attachment	N/A	N/A	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	894180	1.1	Certified	David Leamer	Assistant Superintendent		29-MAR-24	29-MAR-24	Monthly Category 3 Spill	339474	02/24/2024 10:53	02/24/2024 12:14	02/24/2024 07:18				See Attachment, Spill Map and Photos	38.5057	-121.45806	Lateral Clean Out (Public); Manhole	N/A	Spill from SacSewer cleanout and manhole	955	See Attachment, Spill Map and Photos	Y	See Attachment, Spill Map and Photos	929				952	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		See Attachment, Spill Map and Photos	Y	38.50579	-121.458	38.50567	-121.45799	38.50464	-121.4558			02/24/2024 13:15	See Attachment, Spill Volume Estimation.	See Attachment, Spill Volume Estimation.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		56	No observed impact of spill	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		The manhole at 42nd St/Elko Ct spilled onto pavement, curb, and gutter, and entered a storm drain inlet at 6621 42nd St. A SacSewer cleanout at 4201 Elko Ct also spilled on the grass area, onto the sidewalk, curb and gutter, to the storm drain inlet at 4201 Elko Ct.  From both drain inlets, the spill traveled through the drainage conveyance system and reached the Sacramento County Drainage Pump Station at the backside of 4312 Greenwich Cir. Staff contacted the Sacramento County Drainage staff at 1:41 p.m. on 2/24/24 and confirmed that the drainage pumps did not run at all on 2/24/24. There is a flow-through pipe from the drainage sump to the creek behind the fence, but water in the sump was below the invert of the flow-through pipe. The flow-through pipe outfall to the creek was seen dry.SacSewer crews used a hydro-vacuum truck to rinse and vacuum affected above-ground surfaces and parts of the drainage conveyance system in contact with sewage	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected mainline with CCTV on 3/18/24. Based on findings, SacSewer increased preventative cleaning frequency to 24 months from 48 months.		02/24/2024 21:50	Grease in the mainline caused a manhole at the intersection of 42nd St and Elko Ct and a SacSewer cleanout at 4201 Elko Ct to spill. 		None	03/19/2024 14:13														N/A	SacSewer increased preventive cleaning frequency from 48 months to 24 months.	SacSewer increased preventive cleaning frequency from 48 months to 24 months.	N/A	SacSewer inspected mainline with CCTV on 3/18/24	N/A	SacSewer increased preventive maintenance frequency on 3/19/24	N/A	None	
5S	5SSO10901	Active	City of Sacramento Utilities CS	Sacramento City	894181	1.1	Certified	Kevin Guerra	Superintendent		27-MAR-24	27-MAR-24	Monthly Category 3 Spill	300  El Camino Avenue Sacramento, CA. 95815	02/15/2024 14:09	02/15/2024 14:30	02/14/2024 14:00				The spill appearance point was a manhole in a paved parking area.	38.61081	-121.45907	Manhole			825	The spill entered the drainage system through a private drain in a parking lot, and was then trapped downstream in a drainage main that had a large amount of debris in it.	Y	The spill entered through a private drain into the drainage the system that travels to a sump station that discharges to the American River.	825				825	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		The spill entered a private drain that was tied into our drainage system. The spill traveled through several drainage main segments before it was trapped by debris in a Drainage 16  main.	Y	38.61081	-121.45907	38.61936	-121.44834					02/15/2024 15:06	The spill was measured on the ground, the length, width, and height were then put into a volume calculation. We then took measurements of depths in the drainage mains and used the length and circumference of the piping in another volume calculation to get this total. These were added together to get the estimated volume.	We used the witnesses statement of when they first saw the spill for the start time. The Responder documented the time they unplugged the sewer main for the spill end time.	Debris from Construction	There was a large piece of concrete that was removed from the main	Gravity Mainline		Vitrified Clay		109	There were no impacts in the area from this spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	The spill area on the surface was washed down and we cleaned and vacuumed the drainage system. All of the spill was returned to the wastewater system.	The spill was not active upon arrival it did not need to be contained. Drainage crews were already onsite to assist with washing down the area along with cleaning and vacuuming the drainage mains. The entire spill was returned to the sewer system.	Inspected Sewer Using CCTV to Determine Cause		N/A		02/15/2024 18:00	We inspected the sewer main using our CCTV equipment and found a large piece of concrete in the same area where the main plugged. We removed the concrete and the main is flowing properly at this time. Our research into the cleaning data showed the main was not yet due to be cleaned and previous inspections did not have this in the concrete called out in them. We feel the cleaning schedule is appropriate and the cause of the spill has been removed.		N/A	02/21/2024 11:49														N/A	N/A	No adjustments needed	N/A	N/A	N/A	N/A	N/A	N/A	
2	2SSO10166	Active	Piedmont City CS	Piedmont City	894182	1.2	Certified	Daniel Gonzales	Public Works Director	27-MAR-24	30-APR-24	30-APR-24	Category 1 Spill	4 Cavanaugh Court	03/22/2024 10:54	03/22/2024 11:13	03/18/2024 09:00	03/22/2024 12:06	24-1721	30-APR-24	manhole #310-47 located at 4 Cavanaugh Court Piedmont CA	37.8138	-122.21811	Gravity Mainline			26150	Spill flowed out of manhole down hill adjacent to driveway along curb and gutter into storm drain.	Y	Storm drain system located at 1800 Trestle Glen Boulevard.	0	0	One storm drain catch basin	26150	0	Street/Curb and Gutter (2 3)		Backyard MH overflowed due to root intrusion. Flow occurred for four days prior to being reported by resident. Flow passed down driveway, into roadway gutter, into drain inlet.  	Y	37.81405	-122.21825							03/22/2024 11:40	City installed a temporary flow meter to calculate the flows in this pipeline for the reported duration of the spill. Report has been attached. 	Resident reported that spill was first observed on 3/18 at 9 a.m. and was resolved on 3/22 at 11:40 a.m.	Root Intrusion		Manhole		Polyvinyl Chloride (PVC)		20	Flow reached storm drain system. 	N	Restored Flow		Restore flow immediately and remove root blockage. Remove solids were possible to contain and remove. 	Repaired Facilities or Replaced Defect		Remove roots from MH and plan for MH replacement. 	03/18 - Spill observed by resident 03/22 - Spill reported by resident at 10:50 03/22 - Spill stopped by City at 11:40 03/23 - EBMUD performed testing in morning.	03/22/2024 12:00	Blockage in MH due to root intrusion. 	N			Indian Gulch Creek	Stream/Creek		Creek with flowing water	No impacts noted. 	Other (specify below)	Area is not accessible to public. 	City of Piedmont	0	Y	Y	Sampled at the receiving inlet. 	total Fecal E. Coli, Ammonia, Enterococcus										
2	2SSO10170	Active	Richmond City CS	Richmond City	894183	1.3	Certified	Mary Phelps	Project Manager		29-MAR-24	29-MAR-24	Monthly Category 3 Spill	919 Sonoma St	02/26/2024 07:30	02/26/2024 08:30	02/25/2024 06:00				Intermittent spill from private lateral cleanout in the backyard of 920 Yuba. (see attached photos)	37.94818	-122.32263	Lateral Clean Out (Private)			500	See attached photos	N						500	Unpaved Surface		backyard of 920 Yuba St Richmond CA ( Lat 37.94818 long. -122.32263)	Y	37.94818	-122.32263							02/26/2024 10:30	Spill volume calculated based on operator training, and experience. Estimation based on intermittency of discharge and average household water use and number of occupants over given time. 	Citizen interviews, and estimations.	Root Intrusion		Gravity Mainline		Vitrified Clay		35	Unpaved/exposed soil in the backyard of 920 Yuba street, 5611 Edmond, and 919 Sonoma. (see photos)	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below)		Cleared blockage (root intrusion) and restored flow, crews removed one inch of soil from affected properties.  Remaining soil was disinfected and all areas were sanitized. 	Added Sewer to Preventive Maintenance Program		Hydro jetted gravity sewer main to remove roots. 		02/27/2024 15:00	Roots were discovered during the jetting of gravity sewer main, and are suspected of the cause of the spill from private lateral. 		N/A	02/27/2024 15:00														N/A	N/A	Hydro jet line with in a 4 year period. 	N/A	N/A	N/A	N/A	N/A	N/A	
1	1SSO10058	Active	Rio Dell City CS	Rio Dell City	894187	1.2	Certified	Sunshine Kelly	Wastewater Superintendent	27-MAR-24	27-MAR-24	27-MAR-24	Category 1 Spill	End of Painter Street Manhole	03/24/2024 08:25	03/24/2024 08:25	03/24/2024 08:25	03/24/2024 09:48	24-1755		The spill was located at the Painter Street manhole at 556 Painter St. Photos attached show spill location. 	40.503117	-124.093756	Manhole			33825	The spill was located at the Painter Street manhole and flowed down the gravel ditch away from the residential area toward the Eel River, river bar. Photos show the sandbags, and ditch in place to direct the flow away from the residential area. 	N				Photographs show the spill stream running toward the river. Due to the extreme rain, my phone got wet and would no longer take pictures once I reached where the spill stream with rain run off combined to reach the Eel River	33825	0	Surface Water		The Spill flowed to the Eel River at Latitude/ Longitude: 40.503055, -124.091890.	Y	40.503055	-124.09189							03/24/2024 18:25	The volume estimation was based on flow monitoring at the site as well as supervisory control from SCADA based on the trend of the Painter Street lift station wet well level and pump control and the influent flow data into the plant.	The methodology of the spill start time was based on supervisory control based on SCADA of the data collected on the Painter Street Pump station trend, and the rain gauge at the Wastewater treatment plant. We were prepared for the event and had sandbags, a ditch to convey the spill away from residential properties and signs posted.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Other (specify below)	The failure is that the sanitary sewer main at this location was constructed with a 90 degree turn at this manhole and the earthquake in December of 2022 destroyed private laterals allowing more I&I to enter this portion of the sanitary sewer system. An upsizing project for this section of the sanitary sewer system is in the works since 2019 and will hopefully see some forward momentum with state funding this spring and summer, before the next wet season	55	There was no impact to residence, or private property, or human life as spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage and the property owners were made aware of the issue at this site location.	Y	Cleaned Up (specify below)		Spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage was in place, property owners were notified and personnel frequently monitored at this site location. During and after spill the area was monitored to keep clean if there were any sewage debris. After the spill event the ditch was cleaned and sprayed with chlorine solution for disinfection.	Plan Rehabilitation or Replacement of Sewer		This site has a planned upsizing project in the planning phases for the past 6 years. Currently waiting on State funding to push the design process forward. Also looking to camera sewer mains and do a smoke test of the laterals in the area that lead to the Painter Street Pump Station.	Meeting with the State Water Control Board and Engineering company GHD on January 24th, 2024, provided some comfort that the State would approve the funding of this project, and the City of Rio Dell can start the design process.	03/25/2024 09:00	This SSO occurred due to the high levels of I&I. The area received 2.27 inches of rain in less than 48 hours on 3/23/24 through 3/24/24. The atmospheric river saturated the ground and the system causing the pump station to become overwhelmed which caused the SSO at this location, the Painter Street manhole.	N			Eel River	River		The Eel River is a large river that runs north on the east side of the City of Rio Dell. There are no Surface Water users downstream of the SSO discharge location. 	No known impacts to aquatic life.	Restricted Public Access		City of Rio Dell Wastewater Superintendent and the City of Rio Dell P.D.	2	N	N												
5S	5SSO10965	Active	Hangtown Creek CS	Placerville City	894191	1.3	Certified	Nicholas Stone	Director of Public Works		27-MAR-24	27-MAR-24	Monthly Category 3 Spill	496 Main St.	03/19/2024 10:58	03/19/2024 11:03	03/19/2024 09:03				Spill originated on hillside behind business at 496 Main St.exsitting 6 inch line at a dissconnected joint.Light debris field of approx.2x20x.25 and 2x40x.25 ,with no flow on arrival.	38.72949	-120.79953	Gravity Mainline			224	Spill created two light debris fields (1) 2x20x.25 and (2) 2x40x.25,all contained within unpaved surface.	N		0				0	Unpaved Surface		Debris from the spill was contained to the imediate area of unpaved suurface. 	Y	38.72949	-120.79953							03/19/2024 11:15	Spill volume was calculated by using area volume method. Two debris feilds of (1) 2x20x.25 and 2x40x.25 =30 ft3 x 7.48 =224 gals with approx 20 gals of recovered debris.	Small debris feild and little to no flow indecated line may have been disconnected for approx. 1 hr previous to arrival.Spill stopped within approx. 10 min. of arrival by realigning pipe witch ended spill.	Debris-General; Pipe Structural Problem/Failure - Controls; Root Intrusion	Pressure from debris in line caused joint to separate.	Gravity Mainline		Other (specify below)	6 inch asbestos cement pipe	54	All of spill was contained to open field of unpaved surface with little to no impact on area.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow		Spill area was desinfected and washed down , wiyh approx. 20 gals of contaminated soil and weeds removed.	Repaired Facilities or Replaced Defect		Section of pipe was replaced and line was flushed . Line with be observed to confirmed for normal operation.		03/19/2024 15:30	Old pipe and pipe joint was discovered and replaced for full repair of line.		None	03/19/2024 15:30														N/A	New pipe and joint solved the problem.	Ajusted to more frequent flushing.	Approx.30 ft of pipe was replaced.	Line was replaced and flushed then inspected for normal use.	N/A	N/A	N/A	None	
3	3SSO10287	Active	Marina Coast CS	Marina Coast WD	894192	1.3	Certified	Derek Cray	Operations & Maintenance Manager		28-MAR-24	28-MAR-24	Monthly Category 3 Spill	158 Okinawa Road	03/16/2024 10:51	03/16/2024 11:37	03/16/2024 10:45				The spill originated from two, 1in manhole pick holes at an approximate spill rate of 2.5 gpm from each hole. 	36.63814	-121.82671	Manhole			300	The spill exited the manhole out of two 1in pick holes, with each having an approximate spill rate of 2.5gpm, for a 60min duration. Once the sewage exited the grass, it continued over the sidewalk and collected in the gutter. From there, it made its way into the storm drain where it was contained in multiple drain sumps. The sewage did not exit the storm drain which day lights at a percolation basin. The storm drain was jetted and all water and sewage were removed with the District's vac truck.  	Y	The sewage entered the storm drain and was contained in multiple sumps within the storm drain system. This prevented the sewage from daylighting at the percolation basin. All sumps containing sewage were cleaned with the vac truck. All affected piping was thoroughly jetted with all water/sewage also being removed with the vac truck. 	105				211	Drainage Conveyance System; Street/Curb and Gutter (2 3); Unpaved Surface		The spill originated from two 1in manhole pick holes. The sewage continued to flow from the manhole located in a lawn, over the sidewalk at an approximate spill rate of 2.5gpm from each pick hole, collecting into the gutter. Once the sewage collected in the gutter made its way into the storm drain, it was further contained in multiple sumps within the storm drain system. All sewage was contained within the storm drain system and did not daylight at the percolation basis.  	Y	36.63942	-121.82493							03/16/2024 11:45	The start time was determined by speaking with the reporting party as well as a neighbor who also witnessed the spill. Capturing the spill height and number of spill points from the manhole cover also helped with approximating the spill rate. The total measured spill path from the start to the end point was also captured and included in the total spill volume recovered except for the volume within the grass/dirt area.    2.5 gpm + 2.5 gpm x 60 min = total spill of 300gal.   total measured area from sidewalk, gutter storm drain sumps and pipe =211 gal.  300-211 = 89 gal of unrecovered sewage. 	The start time was determined by speaking with the reporting party as well as a neighbor who also witnessed the spill. Calculating the spill rate to include the full spill path was also used to help determine the start time. 	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		45	The spill originated from two 1in manhole pick holes with each having a flow rate of 2.5 gpm. The sewage continued to flow over the sidewalk collecting in the gutter and making its way into the storm drain. Once in the storm drain, it continued to collect in each of the 6 sumps which help to contain and prevent the sewage from daylighting at the percolation basin. All sewage within the storm drain, gutter and sidewalk was recovered. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		Spill response consisted of documentation of the spill rate exiting the appearance point. Next the focus shifted to containment which was achieved by utilizing dirt to create a berm and prevent any further sewage from entering the storm drain. The full spill path was identified, and the cleanup consisted of recovering all sewage from the storm drain and gutter with the use of the vac truck. The storm drain was then jetted with the vac truck to allow for the recapture of all water used during the cleaning.   Wash down of the sidewalk and gutter area consisted of lightly misting cl2 and washing down with clean water from the Jetter truck. All water used for cleanup was directed to the Vactor which was positioned to allow for complete vac removal of all cleanup water used.  	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		The sewer main was thoroughly inspected with the Districts CCTV unit. The cause of the spill was found to be root intrusion and FOG build up. To address these issues, the maintenance frequency has been increased to help break up any possible future build up. Also, the length of main required to be addressed during these maintenance intervals has been increased to the include the full length of main up to the newly constructed system. 		03/16/2024 15:00	The sewer main was inspected by utilizing the District CCTV unit. This allowed for a full evaluation of the main to help determine the cause of the spill. The inspection identified root intrusion as well as FOG build up to be the cause. While the camera was still conducting its inspection, the main was thoroughly jetted to ensure all roots/FOG had been removed. 		The line was televised through the use of the CCTV unit, the cause was found to be root intrusion and FOG buildup.  The line will be CCTV'd again in 6 months for a follow-up inspection. 	03/18/2024 15:30														N/A	The maintenance frequency for this location has been adjusted. The length of main requiring maintenance has also been adjusted to include the full length up to new construction. 	The maintenance interval for this location has been adjusted down to allow for more frequent maintenance to be completed. The length of the main requiring maintenance has also been adjusted to include the full length up to new construction.	N/A	The sewer main was inspected by the Districts CCTV unit. The spill cause was investigated and found to be a result of root intrusion and FOG build up. 	This segment of pipe is not currently listed within the District's CIP program. 	The maintenance frequency for this area has been increased and adjusted to include the full length of sewer main up to the newly constructed neighborhood.	No Response modifications required. 	The line was televised through the use of the CCTV unit, the cause was found to be root intrusion and FOG buildup.  The line will be CCTV'd again in 6 months for a follow-up inspection. 	
9	9SSO11209	Active	Carlsbad City CS	City of Carlsbad	894198	1.3	Certified	Jesse Castaneda	Utilities Superintendent		31-MAR-24	31-MAR-24	Monthly Category 3 Spill	Whiptail Loop West	02/14/2024 09:36	02/14/2024 09:58	02/14/2024 06:45				The spill originated at MH 25B-12 in the middle of a paved two way road, in front of 2827 Whiptail Loop. Cross street Gazelle Ct.	33.14317	-117.2551	Manhole			341	The spill originated from a manhole in the center of a two-lane street. It flowed down the street for approximately 138� and reached the curbline on both sides. On the north side of the street a small amount of the spill flowed into a storm drain inlet. However the majority of the spill stayed on the street. Because of ongoing construction at the time, the inlet was covered by a plastic screen, which helped to minimize the amount that entered the catch basin.	Y	A small volume of the spill went into a catch basin via a curb inlet and was contained there. The spill volume was very low and the curb inlet was far enough away that only a small fraction of the spill reached the  inlet. Also, BMPs were in place in front of the curb inlet because of construction in the area so very little of the spill entered the catch basin.	17				341	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		The spill exited the manhole and spread out across the street to the curbline on both sides. It flowed approximately 130� on the south side of the street and approximately 138� on the north side, with a small portion entering a catch basin through a curb inlet. 	N									02/14/2024 10:08	The spill volume was calculated using the area/volume method. Staff drew out the shapes of the spill area and used area and volume formulas to determine how much sewage had spilled. The amount of wastewater that reached the catch basin was estimated based on the amount that was vacuumed up. Staff checked the catch basin downstream from the one that received the flow and it was dry, so staff assumed that all of the flow that reached the catch basin stayed there. The estimated amount of the spill was then verified using the duration and flow rate comparison method.	-The start time was estimated based on an interview with the foreman for the construction company that is building on the vacant lot adjacent to the manhole location. His crew saw the spill at 6:45am. -The end time was based on the actual time that the crew got a vacuum truck set up at the manhole and stopped it from spilling. 	Debris from Construction		Other (specify below)	Dirt and silt entered an unused lateral on a construction site.	Polyvinyl Chloride (PVC)		18	There was little impact from the spill. Traffic was routed around the spilling manhole while the wastewater crew was clearing the blockage but other than that there was no impact to the public or the environment. 	N	Cleaned Up (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		A wastewater crew headed to the spill location with the combination truck as soon as they were notified. There were already BMPs set up at all curb inlets along that portion of the street. The closest curb inlet was approximately 130� from the manhole and very little flow had made it that far so the crew immediately began clearing the blockage. They set up at the downstream manhole and ran the main line three times and confirmed that the manhole was no longer overflowing. They then ran the line downstream from the manhole upstream from the spill as a precaution. A second crew arrived a few minutes after the spill was stopped to help with the cleanup effort. One crew vacuumed up the small amount that had flowed into the catch basin and the other crew proceeded to wash down the street. All of the washdown fluid was recaptured.	Other (specify below)	The unused lateral on the construction site was abandoned.	The spill was caused by dirt and silt that entered the collection system from a construction site that had a sewer lateral that was due to be abandoned. The construction company changed their schedule and abandoned the sewer lateral immediately after the spill. 		02/14/2024 10:30	Wastewater staff televised the sewer main that had been blocked and found a sewer lateral with silt/dirt at the entrance. After looking at the city�s GIS system it was determined that the lateral belonged to a vacant lot close to the manhole, where a private construction job was occurring. Wastewater management notified the city�s Construction Management division. The inspector for that construction site verified from the plans that the lateral was due to be abandoned but that the work hadn�t been done yet. The general agreement was that the debris had somehow  entered the lateral and caused the blockage. The lateral was then abandoned.		Follow up conversations were held with the city's Construction Manager and Construction Inspector to get more information because of the construction site being the likely cause of the debris that caused the blockage. These conversations were held on 2/15 and 2/20. Follow up questions were then asked of the construction company foreman on 2/20. The investigation was then concluded because the city received all of the information needed to determine cause and start time.	02/20/2024 11:30														n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a	Follow up conversations were held with the city's Construction Manager and Construction Inspector to get more information because of the construction site being the likely cause of the debris that caused the blockage. These conversations were held on 2/15 and 2/20. Follow up questions were then asked of the construction company foreman on 2/20. The investigation was then concluded because the city received all of the information needed to determine cause and start time.	
2	2SSO10166	Active	Piedmont City CS	Piedmont City	894204	1.1	Ready to Certify						Monthly Category 3 Spill	301 El Cerrito Avenue Piedmont,CA 94611	01/22/2024 15:45	01/22/2024 15:53	01/22/2024 15:30				Manhole #432-42	37.82435	-122.23794	Manhole			720	Entire spill contained within construction zone/\.	N						0	Unpaved Surface		Construction zone										01/22/2024 15:54	San Diego over flow chart	Assumption on the basis that the spill stayed within the construction zone at a 20-30 gpm rate. 	Debris from Construction		Manhole		Other (specify below)	HDPE	15	Contaminate construction zone	N	Cleaned Up (specify below); Restored Flow		Spill was contained within a construction zone. All solids were picked up and disposed of.	Other (specify below)	More inspections during construction	Daily inspections of job site while working around manholes		01/22/2024 17:00	Inspected manhole and found concrete and dirt inside manhole		None	01/22/2024 15:55														N/A	N/A	N/A	N/A	Repaired asset	N/A	N/A	None	None	
5S	5SSO10931	Active	Dixon CS	Dixon City PWD	894206	1.2	Certified	Brandon Rodriguez	Senior Civil Engineer		28-MAR-24	28-MAR-24	Monthly Category 3 Spill	SSMH #410 Ellesmere Drive / Meadowood Village	02/27/2024 19:07	02/27/2024 19:38	02/27/2024 17:00				SSMH #410 near intersection of Ellesmere Drive and Newgate Way.	38.4571	-121.82452	Manhole			500	Approximately 300 feet downstream at next intersection of Newgate Way and Stratford Avenue	Y	Storm drain, gutter, inlets.	100				500	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Approximately 300 feet downstream at next intersection of Newgate Way and Stratford Avenue	N									02/27/2024 19:58	Duration and flow rate comparison method was used but was refined considering the vac-con was able to recover the entire spill including wash down water and only filled up half way which is approximately 500 gallons.	At time of call 5:15pm there was an approximate 10-foot radius from the manhole so the start time was determined to be approximately 5:00pm. This was determined based off the information provided by the spill notification call. Staff stopped the spill within minutes (7:58pm) of arriving to the scene by utilizing the vac-con to clear the blockage and restore flow. 	Debris-General; Debris-wipes/Non-disposables		Gravity Mainline; Manhole		Vitrified Clay		30	None, the spill was contained and recovered, sewage flow restored, and spill returned to the sanitary sewer system. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Followed the spill emergency response plan guidelines section 7.5 spill containment measures. Used sandbags and berms to protect drainage conveyance system. Followed section 8.2 cleanup and disinfection of the spill emergency response plan for paved areas. 	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below)	Upstream capital improvement to assist with preventative maintenance.	Replacing upstream cleanout with manhole to assist with sewer main preventative cleaning. Staff has added this area to their hot spot areas. 		02/27/2024 19:58	We believe the spill originated from upstream private onsite sewer maintenance that discharged are larger than normal amount of debris, rags, wipes, etc. to the sewer main. This led to the blockage in the main which caused the sewage to overflow from the manhole at Ellesmere Drive and Newgate Way. We were led to this conclusion due to a private sewer lateral discharge that occurred on March 10, 2024, shortly after this spill, from the Meadowood Village apartment complex that is immediately upstream of this spill location. Notably, the location of this spill is near the upstream most part of this sewer main segment and the Meadowood Village apartments is one of the main contributors to the flow in this upstream segment. After this spill and subsequent private lateral sewage discharge, staff routinely monitored this sewer main for the rest of March. During the past month, there were no further issues with this sewer main area and no further spills. 		N/A.	03/28/2024 15:00														N/A.	Proactively replacing upstream cleanout with manhole to assist with sewer main preventative cleaning. Staff has added this area to their hot spot areas. 	Yes, followed up and checked the affected manhole as well as upstream and downstream manholes over the last month. No further issues have been identified. 	Proactively replacing upstream cleanout with manhole to assist with sewer main preventative cleaning. Staff has added this area to their hot spot areas. 	Yes, followed up and checked the affected manhole as well as upstream and downstream manholes over the last month. No further issues have been identified. 	Proactively replacing upstream cleanout with manhole to assist with sewer main preventative cleaning. 	N/A. Staff completed inspections of the spill location over the last month and there are no further issues. 	N/A.	N/A.	
3	3SSO10250	Active	Guadalupe City CS	Guadalupe City	894211	1.2	Certified	David R Miklas	Wastewater Supervisor	02-APR-24	11-APR-24	11-APR-24	Category 1 Spill	10th Street	03/28/2024 14:16	03/28/2024 14:26	03/28/2024 14:00	03/28/2024 16:12	24-1856		A manhole in front of 1645 10th Street. 	34.972008	-120.573219	Manhole		None	376	The spill spread from the manhole 10 feet to each side (20 feet wide) and 28 feet to the curb. It then went down the gutter 65 feet to a storm drain at places a half inch deep. the gutter already contained dirt and debris so the water was not flowing. Only about a gallon entered the storm drain and was recovered. The storm drain went directly down hill for about 100 feet and the end was dry (the water did not reach the end).	Y	Storm drain at the end of 10th street has a grate covering the entrance box. A pipe exits west and travels down hill about 100 feet.	1	0	This storm drain leads to a dirt road and fields. The discharge point was dry. 	0	376	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Spill from manhole in front of 4645 10th street. Spill spread on asphalt and went to the gutter on the south side of the street. It traveled west down the gutter to a storm drain. Dirt and debris in the gutter slowed the spill and only about a gallon entered the storm drain. 	Y	34.972	-120.57316							03/28/2024 16:20	The spill spread from the manhole 10 feet to each side (20 feet wide) and 28 feet to the curb. 20'x28'x0.0026'(wet asphalt) x 7.48 gal/ft3 = 11gallons.   It then went down the gutter 65 feet to a storm drain at places a half inch deep. the gutter already contained dirt and debris so the water was not flowing. 65�x0.5� wide x .02� (average � inch depth in the gutter) x 0.5 (triangle for gutter cross section) x 7.48 gal/ft3 = 365 gallons  Only about a gallon entered the storm drain and was recovered. The storm drain went directly down hill for about 100 feet and the end was dry (the water did not reach the end). 	Staff received a call from the property management company of the apartment complex in front of the manhole that a spill was occurring and had been going for about 15 minutes at 14:16. When staff arrives at 14:24 the manhole was not spilling any longer. 	Fats, Oil and Grease (FOG)		Manhole		Polyvinyl Chloride (PVC)		35	No impact. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Dirt was piled in front of the storm drain to ensure no more sewage entered the drain. A contractor was called out to clear the blockage in the sewer line with a jetter truck. They then used the vacuum truck to gather up the spill and used bleach to sanitize the street and gutter. All of the dirt and debris in the gutter contaminated by the spill was removed.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Added this manhole to weekly inspection.	Added this manhole to weekly inspection.	03/29/2024 17:30	CCTV was used the next day to inspect the line and found a belly which may have caused grease to build up causing the spill. No other defects were found. 	N			none	Other (specify below)	The storm drain lead to a field. 	none	none	Other (specify below)	none	none	0	N	N												
8	8SSO10587	Active	Michelson WRP CS	Irvine Ranch Water District	894212	1.2	Certified	William Kleinau	Collection Systems Manager	28-MAR-24	05-APR-24	05-APR-24	Category 1 Spill	2 Willowrun, Irvine, CA, 92604, USA	03/27/2024 10:05	03/27/2024 10:22	03/27/2024 08:40	03/27/2024 11:53	24-1819		33.684668, -117.806123. See attached report.	33.68467	-117.80612	Manhole			650	See attached report.	Y	Impacted drainage channel, spill traveled along Culver Dr in between Barranca Pkwy and Warner Ave. See attached report.	100	550	Discharged into an inlet at: 33.684829, -117.806026	550	100	Drainage Conveyance System that discharges to surface water		See Attachment. 	Y	33.69627	-117.81571							03/27/2024 10:50	See Attachment.	See Attachment.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		48	See Attachment.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	See Attachment.	See Attachment.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	See Attachment.	See Attachment.	See Attachment.	03/27/2024 12:00	See Attachment.	N			Peters Canyon Channel	Wash		See Attachment.	See Attachment.	Other (specify below)	None.	Orange County Health - Environmental Health Division	0	N	N												
8	8SSO10591	Active	Orange City CS	Orange City	894213	1.1	Certified	Mike Carney	Environmental Program Manager		05-APR-24	05-APR-24	Monthly Category 3 Spill	7606 E Angel View Terrace 	03/28/2024 14:40	03/28/2024 14:53	03/28/2024 14:30				Santiago Canyon Road is an arterial roadway with surface flow drainage that enters an inlet at Wilderness Avenue and Meads Avenue	33.81276	-117.77169	Manhole			55	Spill was not large enough to impact vent holes or pick holes.   It was a slow leak from around the manhole cover ring.  	Y	Curb and gutter that drains to an inlet for a culvert, the purpose of the culvert is to reduce cross drainage on a side street during large storms and the drainage daylights ~ 90' downstream into a ditch and then returns to curb and gutter.	55				55	Drainage Conveyance System; Street/Curb and Gutter (2 3)		Curb and gutter, culvert and open ditch (Orange County owned) that connects back to curb and gutter.	Y	33.81301	-117.77863							03/28/2024 15:00	Estimated the use and discharge from 8 residences served by the line.  Then the measured length of ~1,000 feet x the width of 3 inches x the height of ~.25 inches (high point) was used to generate a volume of 38 gallons and an additional amount was added to arrive at 55 total gallons.	There are eight residences that are serviced by this main, six of these are from the private lateral that tee-connects into the main line.  All flow levels below the tee were very low and upstream of the tee the flow levels were also low when blockage was being cleared.  The main line had been cleared within the previous two year period without issue.	Debris from Lateral; Debris-General		Manhole		Vitrified Clay		41	None.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Response was initially to clear line, determine downstream impact of the spill and best location to collect wastewater and wash water.  Crews placed berms at the  re-connection  point of the County-owned improved ditch into the curb and gutter (~ 1,200 ft from appearance point); since the spill was being held within the underdrain culvert running underneath the side street (this is a cross-drainage control measure).  All surfaces above the culvert were flushed through the culvert and all water was removed from the system at the daylighting point.	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below)	Owners of the private lateral will be contacted and educated.	The City line serves eight residences with six connecting via a private lateral that tees into the main line.  The residences using the private lateral line will be contacted to raise awareness of maintenance needs on private lateral lines and restrictions on the materials entering the line.		03/28/2024 15:30	N/A		N/A	03/28/2024 18:42														N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	894214	1.2	Certified	Kent Vian	Asst. Deputy Director	15-APR-24	16-APR-24	16-APR-24	Category 1 Spill	NOT# 40201076335 312 EUCLID AVE.	03/27/2024 19:28	03/27/2024 20:00	03/27/2024 20:00	03/27/2024 22:43	24-1833		SPILL ORIGINATED FROM A VANDALIZED MANHOLE IN THE CREEK IDENTIFIED AS WEST SIDE CREEK.	32.70816	-117.08594	Manhole	N/A	N/A	3240	SPILL CAME OUT OF MANHOLE AND ENTERED THE WEST SIDE CREEK AND HEADED WEST AND SETTLED IN THE DRY CREEK BED.	N	N/A	0	0	THE SPILL ORIGINATED FROM A VANDALIZED MANHOLE IN THE WEST SIDE CREEK THAT WAS THE ONLY DISCHARGE POINT THE SPILL HEADED WEST  IN THE DRY CREEK.	3240	0	Drainage Conveyance System that discharges to surface water	N/A	SPILL ORIGINATED FROM A VANDALIZED MANHOLE, DISCHARGE LEFT MANHOLE 54 AND HEADED WEST IN WEST SIDE CREEK WHERE IT SETTLED THE CREEK WAS DRY	Y	32.70816	-117.08594							03/28/2024 22:10	VISUAL CALCULATED METHOD/ DURATION AND FLOW METHOD.	START TIME ESTIMATIONS WERE ASSUMED WHEN THE CONSUMER CALLED IN AND REPORTED THE SPILL TO THE CITY DISPATCH.	Debris-General	N/A	Manhole	N/A	Other (specify below)	MANHOLE VANDILIZED	29	SPILL IMPACTED THE WEST SIDE CREEK	N	Mitigated Effects of Spill (specify below); Restored Flow	N/A	SET-UP CONTAINMENT, TRACKED FINAL DESTINATION, RELIEVED STOPPAGE, CCTV SEWER MAINS.	Inspected Sewer Using CCTV to Determine Cause	N/A	CREWS RELIEVED SPILL, TRACKED FINAL DESTINATION, PERFORMED CONFINED SPACE ENTRY TO REMOVE DEBRIS DUMPED IN MANHOLE ILLEGALLY, RESECURED VANDALIZED MANHOLE CCTV SEWER MAINS.	N/A	03/28/2024 22:10	CONSTRUCTION CREWS HAD TO BE DISPATCHED OUT TO RESECURE VANDALIZED MANHOLE, CCTV ALSO TELEVISED TWO UP AND TWO DOWN SEWER MAINS.	N	N/A	03/28/2024 22:10	WEST SIDE CREEK	Stream/Creek	N/A	Dry Stream/Storm Water Conveyance	N/A	Public Closure	N/A	san diego county health	0	N	N	N/A	N/A									N/A	
5S	5SSO11084	Active	White Slough Water Poll Con Pu CS	Lodi City	894219	1.2	Certified	Andrew Richle	Utilities Superintendent 		29-MAR-24	29-MAR-24	Monthly Category 3 Spill	1354 W. Walnut Ave, Lodi CA	02/24/2024 09:13	02/24/2024 10:00	02/24/2024 09:00				One spill location MH ID: L1566. Coordinates below. Pictures attached. 	38.13125	121.290037	Manhole	One spill location MH ID: L1566		168	Please see attached photos. 	Y	Please see attached photoes	60				168	Drainage Conveyance System		SDMH: L1566 Please see attached photos.	Y	38.131263	121.290244							02/24/2024 11:00	Height of spout above MH (H) x SSO flow (Q) in gpm 1/4 (H) = 1.4 gpm (Q) x 120 min. =168 gallons	Based on estimated spout height assuming height remained steady throughout duration of spill. Spill volume on surface and SD sump looked accurate based on calculation.   	Debris-General; Debris-Rags		Gravity Mainline		Concrete		64	Minimum impact due to response time, containment and cleanup. Line was cleaned and flow was restored. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		SD cover was deployed upon arrival. Storm sump and main was cleaned, in addition to street, gutter and sidewalk. See pictures attached. 	Other (specify below)	Monitor location. Increase Maintenace if needed. 	Monitor location. If rag build up continues to be observed, cleaning schedule will be adjusted. 			Not at this time.		Not at this time.	02/24/2024 11:00														No	Monitor location. If rag build up continues to be observed, cleaning schedule will be adjusted. 	Monitor location. If rag build up continues to be observed, cleaning schedule will be adjusted. 	Not at this time.	Not at this time.	Not at this time.	Not at this time.	None at this time.	Not at this time.	
5S	5SSO10938	Active	Easterly CS	Vacaville City DPW	894221	1.1	Certified	Justen Cole	Director Of Utilities		29-MAR-24	29-MAR-24	Monthly Category 3 Spill	Leisure Town Force Main near Mission Church	06/21/2023 11:30	06/21/2023 11:40	06/21/2023 09:55				The spill was reported by a city employee after noticing  a  sinkhole  formation  on the southbound lane of Leisure Town Road near the appearance point. The initial call was reported as a water main leak. The only water visible was within the sinkhole but there was moisture along the  gutter.  After  further  inspection,  City staff took samples of the water which were in inconclusive. Additional staff was called out to test the Lift Station operation. Staff turned on one pump @ 100% speed with no visible water flowing out of the system. Staff then turned-on a second pump @ 100% speed, then shortly after, sewage was flowing out of the cracked concrete in sidewalk. Staff then proceeded to isolate the force main in operation and use a redundant force main to re-direct sewer flows. The spill was contained within the gutter. A visual inspection was done on the private storm drain which was dry, and no evidence of sewage was detected.	38.36877	-121.93401	Other (specify below)	The spill first appeared through the concrete sidewalk and back of sidewalk after causing underground erosion which also formed a sinkhole underneath the pavement adjacent to the curb and gutter. Pictures have been uploaded. 		308	The extent of the spill was from the initial appearance point as indicated by the GPS coordinates down to the curb and gutter then south to the north driveway entrance to the Mission Church located at 6391 Leisure Town Rd. The curb and gutter into the church has a difference in elevation where the spill was contained. Pictures have been uploaded.	N						38	Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		The approximate reach of the spill begins at the curb and gutter at 38.36877, -121 .93401 and ends at the curb and gutter 38.368408, -121.934021 destination. The spread was within the curb and gutter, sinkhole, under sidewalk, and back of sidewalk (unpaved surface).	Y	38.36877	-121.93401							06/21/2023 13:15	Initial volume calculations were derived from the area/volume for gutters. Additional research is being done to reasonably confirm spill start and final volume based on pump station operating parameters and SCADA records.	Current volume estimation assumes spill start time as the start of a lift station cleaning task the morning of 6/21/2023 were more than one pump was used to draw down the wet well in preparation for the wet well cleaning. The spill volume also relies on the visual inspection of the spill as shown in the photographs. The spill end time is determined to be when the failed force main was isolated and sewer flows were diverted to a redundant 12-inch force main. Total spill volume is assumed to have started before 6/21/23 per the volume estimation attached.	Other (specify below)	Pipe Structural Failure - Corrosion	Force Main		Ductile Iron		28	No impacts were detected to the Church nor a nearby creek per the uploaded photos. The spill flow direction was away from the creek. The spill impacted the saturated soil & underground erosion causing the formation of a sinkhole.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Immediately created a dirt da, or berm to contain spill at the transition from the gutter to the driveway. Called water and sewer staff to identify type of liquid.	Repaired Facilities or Replaced Defect		Section of force main was repaired. Plan to replace entire force main within 3-4 years.		06/21/2023 17:00	Initial assessment of the failure of the force main was due to corrosion of a section of the DIP caused by an air pocket and subjecting the top of the DIP to Hydrogen Sulfide over 28 years.		Additional research to completed to confirm reasonable spill start date & time and reasonable volume as stated in Question 13. Staff also plans to hold a SERP training session to address deficiencies using the new SERP forms.	09/11/2023 17:00														Not applicable.	Operation was changed to make pumps start @ 70% speed by a Variable Frequency Drive and flows were split between the 18-inch and 12-inch Force mains.	No, applicable.	Replace entire force main within 3-4 years.	Repaired section of failed 18-inch Force Main. See photo.	Force Main has been identified as a capital improvement project.	Will provide document addressing the immediate operational change in the pump start speed and the use of both force mains to attenuate the and flow and pressure with the pipes to prevent another failure.	Staff did not follow certain steps of the new Spill Emergency Response Plan (SERP) due to unfamiliarity with the new forms and an assumption the liquid (spill) was a water main break. Samples of the liquid were taken but were inconclusive. We plan to complete a training session with a practical by mid to late August 2023.	Additional research to completed to confirm reasonable spill start date & time and reasonable volume as stated in Question 13. Staff also plans to hold a SERP training session to address deficiencies using the new SERP forms.	
2	2SSO10092	Active	Angel Island State Park CS	Ca Dept of Parks & Rec Marin District	894222	1.2	Ready to Certify			29-MAR-24			Category 2 Spill	Angel Island State Park Lift Station #4 / East Garrison	02/06/2024 10:30	02/06/2024 10:30	02/06/2024 10:30		-		37.8610156  -122.4203663. Utility power failure resulting in wastewater lift station non-operational. Significant precipitation into combined sanitary sewer system. Single appearance point, pick hole on sanitary sewer lid on gravity sewer line.	37.8610156	-122.4203663	Manhole	n/a	n/a	7200	overflow from ss sewer lid onto mineral soil/vegetation (grass). Radius of approximately 15' below ss lid sloped down/away from ss lid. Saturation to ground and containment waddles.	N						200	Unpaved Surface		spill contained approximately 15' radius below the ss lid	Y	37.8610156	-122.4203663							02/07/2024 10:30	City of San Diego reference sheet for estimating sewer spills from overflowing sewer manholes	operator arrived at location to discover sso and was at location to facilitate pumping by contractor for sso end time estimation	Pump Station Failure - Power		Manhole		Cast Iron; Concrete		40	none	Y	Contained All or Portion of Spill		install containment /absorbent waddles and minimize discharge from lateral(s) upstream	Other (specify below)	Contractor pumped 4000 gallons from septic tank below ss lid overflow location to stop sso. PG& E restored utility electrical power to wastewater effluent pumping station location resuming normal wastewater effluent discharge activity 	Restore utility electrical power to pumping station, place absorbent containment waddles, pump location septic that sso lid was supplying and secure emergency generator to operate in the event of prolonged power outages	SSO was stopped as soon as possible and sso was contained to small footprint	02/07/2024 11:00	Investigation was simple. No utility electrical power rendered wastewater effluent pumping location non-operational	N	no need for ongoing investigation. Event was created by prolonged, several day PG&E outage											N												no need for ongoing investigation. Event was created by prolonged, several day PG&E outage	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City (City Attorney's Office at Civic Center Plaza)	894225	1.1	Certified	Kent Vian	Asst. Deputy Director		16-APR-24	16-APR-24	Monthly Category 3 Spill	NOT-40201075271-3913 CENTER ST.	03/23/2024 10:59	03/23/2024 11:29	03/23/2024 11:57				THE SPILL ORIGINATED FROM TWO SEPARATE LATERALS, EQ# 10867954 & 10867462, DUE TO VANDALISM IN THE DOWNSTREAM MANHOLE#276 EQ#1029173, CREWS REMOVED LARGE PIECES OF ASPHALT.	32.7484	-117.14834	Gravity Mainline; Inside Building or Structure; Lateral Clean Out (Private); Other (specify below)	A PRIVATE SEWER MANHOLE INSIDE THE PARKING LOT WAS ALSO SPILLING.	N/A	462	THE SPILL BOUNDARIES ARE TWO BUILDING STRUCTURES, A SIDEWALK, A PARKING LOT, AND A STORM DRAIN.	Y	THE STORM DRAIN IS A 24  CONCRETE PIPE THAT TRANSPORTS SEWER NORTHEAST DOWN INTO A CANYON AREA.	220				220	Building or Structure; Drainage Conveyance System; Groundwater Infiltration Basin or Facility; Street/Curb and Gutter (2 3)		THE SPILL TRAVELED SOUTHWEST DOWN THROUGH AN OPEN AREA AND SETTLED INTO THE SOIL.	Y	32.74867	-177.14813							03/23/2024 12:14	VISUAL CALCULATED METHOD.	THE START TIME IS WHEN THE CONSUMER CALLS STATION 38, THEY CREATE A WORK ORDER, AND WE RECEIVE THE CALL AND RESPONSE.	Other (specify below); Vandalism (specify below)	THE SEWER SPILL WAS CAUSED BY VANDALISM OF ASPHALT INSIDE THE MANHOLE.	Gravity Mainline; Lower Lateral		Vitrified Clay		56	THE IMPACT WAS TWO SEPARATE BUILDING STRUCTURES, AND IT ENDED IN THE DRY CANYON AREA.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Returned Portion of Spill to Sanitary Sewer System		CREWS RESPONDED, INVESTIGATED, RELEVED, TRACKED DOWN THE FINAL DESTINATION CALLED LUFT & TURLY, AND WASHED DOWN THE AREA.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Secure manhole covers.	NONE		03/23/2024 17:30	ONGOING.		AN INVESTIGATION IS ONGOING TO DETERMINE WHO WAS THE RESPONSIBLE PARTY CAUSED THE SEWER PILL. 	04/16/2024 08:33														NO	NO	NO	NO	NO	NO	NO	NO	AN INVESTIGATION IS ONGOING TO DETERMINE WHO WAS THE RESPONSIBLE PARTY CAUSED THE SEWER PILL. 	
5R	5SSO10844	Active	Quincy CS	Quincy Community Services District	894231	1.2	Certified	Jim Doohan	General Manager	29-MAR-24	01-APR-24	01-APR-24	Category 1 Spill	Central Avenue & Lindan Avenue	02/12/2024 16:15	02/12/2024 16:20	03/29/2024 15:15		-		Manhole was overflowing at the intersection of Central Avenue and Lindan Avenue.  Staff jetted the line and vacuumed the overflow with the Vactor.	39.9365	-120.93822	Manhole			850	Manhole was overflowing. Spill did reach the storm drain.	Y	County owned storm drain.	0	750	Unknown.	750	0	Drainage Conveyance System that discharges to surface water		Unknown.	N									02/12/2024 17:45	Visual Observation.	Estimated based on approximate flow from manhole.	Debris-General		Manhole		Concrete		50	Used the Vactor to vacuum as much of the spill as possible.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Returned Portion of Spill to Sanitary Sewer System		Used the Vactor to vacuum as much of the spill as possible. 	Other (specify below)	Jetted and cleaned the line. 	Continue preventive maintenance program.	Ongoing.	02/13/2024 16:54	The sewer main was jetted. It was not determined what caused the blockage. Staff will TV the main.	Y	Staff will TV the line to attempt to determine the cause of the blockage.	04/30/2024 13:10	Unknown	Other (specify below)	Unknown.	Unknown.	Unknown.	Other (specify below)	Unknown	Unknown	0	N	N											Staff will TV the line to attempt to determine the cause of the blockage.	
6B	6SSO11165	Active	Rosamond (Ponds) CS	Rosamond CSD	894241	1.1	Certified	John Houghon	Director of Public Works		03-APR-24	03-APR-24	Monthly Category 3 Spill	MH 589	04/01/2024 14:23	04/01/2024 14:25	04/01/2024 14:00				Overflow at MH 589 caused by blockage between MH 589 and MH 765. Spill contained at adjacent curb and gutter. Partial flow restored early during spill event.	34.86438	-118.16331	Manhole	Adjacent curb and gutter.		251	Spill originated at MH 589 (on street) and was contained at adjacent curb and gutter. 	Y	Spill volume contained at adjacent curb and gutter. 	251				251	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Overflow at MH 589 to paved street and curb and gutter. 	Y	34.88696	-118.17704							04/01/2024 14:23	Measurement of affected area at MH 589 and adjacent curb and gutter. 	Public notification while in area close to spill event. 	Debris-General		Gravity Mainline; Manhole		Vitrified Clay		30	Temporary blockage between MH 589 and MH 765; spill at MH 589	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Immediate response to public notification; dispatched combo truck and jetter trailer to initiate cleanup and restore flow. 	Adjusted Schedule/Method of Preventive Maintenance		Increased maintenance planned for affected area including CCTV inspections. 		04/01/2024 16:00	NA		NA	04/03/2024 10:26														NA	Increased maintenance planned for affected area including CCTV inspections. 	Increased maintenance planned for affected area including CCTV inspections. 	NA	NA	NA	NA	NA	NA	
3	3SSO10244	Active	Carmel Area Wastewater District Collection System	Carmel Area Wastewater District	894247	1.7	Certified	Daryl Lauer	Collections Superintendent	02-APR-24	04-APR-24	04-APR-24	Category 1 Spill	25995 S. Carmel Hills Dr.	03/31/2024 10:54	03/31/2024 11:27	03/30/2024 12:00	03/31/2024 12:08	24-1922		Maintenance Access Hole Q 870 	36.54623	121.90825	Manhole	N/A	N/A	2250	Drainage channel behind Lucky Grocery Store	Y	750' of concrete curb & gutter to storm drain inlet then to vegetated storm channel along Hwy 1 to bike path tunnel under Carmel Valley Rd down path to unpaved vegetated surface to waterway. Hatton Creek water way.	473	1777	Hatton Creek drainage channel behind Lucky Grocery Store	1777	473	Drainage Conveyance System that discharges to surface water	N/a	Spill out of Maintenance Access Hole Q 870, spill ran down. curb and gutter to storm drain that discharged into open runoff drainage channel that discharged to Hatton Creek.  	Y	36.54698	-121.90839	36.54471	-121.90816	36.5444	-121.90871	36.54313	-121.90714	03/31/2024 11:39	Volume estimation was based on upstream connections and duration of flow. 	Start time was estimated based off of homeowner recollection of when they first noticed the spill and when they did not. 	Collection System Maintenance Failure (specify below)	Root intrusion from a abandoned lateral was found to be the cause of the spill.	Gravity Mainline	N/A	Vitrified Clay	The VCP main was lined using Cure in place pipe liner.	65	Spill reached an open curb and gutter that flowed to a dirt discharge channel that discharges into Hatton Creek. The spill lasted almost 24 hours and staff was able to capture 473 gallons with the vacuum truck. The remaining spill reached the open drainage channel that flow to Hatton Creek. There was a small rain event during the spill causing the portion that was not captured to be washed along with rainwater. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	OES and Monterey County Health Department were notified. 	Crews used the vacuum truck to wash down curb and gutter and vacuum up the Spill.	Repaired Facilities or Replaced Defect		Crews performed a CCTV inspection on 4/1/2024 and found defected location in pipe. Repairs was made by contractor on. 4/2/2024	Crews will CCTV inspect repairs in the next few weeks to assure the repair was made correctly.	03/31/2024 15:15	Crews performed a CCTV inspection on 4/1/2024 and found defected location in pipe. Repairs was made by contractor on. 4/2/2024	N		04/03/2024 12:48	Hatton creek	Other (specify below)	Hatton creek is a seasonal creek	Hatton creek is a seasonal creek	No aquatic life present.	Other (specify below)	Area affected were remote drainage channel not frequented by the public.  	N/A	0	N	N	N/A	N/A										
3	3SSO11609	Active	Pacific Grove City CS	Pacific Grove City	894251	1.1	Ready to Certify						Monthly Category 3 Spill	824 Maple Street	03/24/2024 11:27	03/24/2024 11:28	03/24/2024 12:07				Cleanout beside 824 Maple Street	36.61559	-121.92751	Lateral Clean Out (Private)			150	Sewage coming out of a cleanout beside the driveway at 824 Maple Street in Pacific Grove.  	N						50	Unpaved Surface		The spill ended up on land where a drain field discharges										03/24/2024 12:07	flow evaluation and estimates	Notifications by emergency responders	Debris-Rags; Root Intrusion		Gravity Mainline		Vitrified Clay		75	No impact	N	Cleaned Up (specify below); Returned Portion of Spill to Sanitary Sewer System		Emergency responders dyked the spill.  Public Works then responded and cleared the blockage.  	Inspected Sewer Using CCTV to Determine Cause		CCTV of the line to evaluate the condition		04/02/2024 11:12	Rags and roots		CCTV of the affected line	04/19/2024 11:28														No enforcement	Increased maintenance and root control	Increased maintenance 	Unknown at his time	Inspection will occur	If needed	All maintenance is documented	Unknown	CCTV of the affected line	
3	3SSO11609	Active	Pacific Grove City CS	Pacific Grove City	894252	1.1	Ready to Certify						Monthly Category 3 Spill	824 Maple Street	03/24/2024 11:27	03/24/2024 11:55	03/24/2024 12:07				Cleanout beside 824 Maple Street	36.61559	-121.92751	Lateral Clean Out (Private)			150	Sewage coming out of a cleanout beside the driveway at 824 Maple Street in Pacific Grove.  	N						50	Unpaved Surface		The spill ended up on land where a drain field discharges										03/24/2024 12:07	flow evaluation and estimates	Notifications by emergency responders	Debris-Rags; Root Intrusion		Gravity Mainline		Vitrified Clay		75	No impact	N	Cleaned Up (specify below); Returned Portion of Spill to Sanitary Sewer System		Emergency responders dyked the spill.  Public Works then responded and cleared the blockage.  	Inspected Sewer Using CCTV to Determine Cause		CCTV of the line to evaluate the condition		04/02/2024 11:12	Rags and roots		CCTV of the affected line	04/19/2024 11:28														No enforcement	Increased maintenance and root control	Increased maintenance 	Unknown at his time	Inspection will occur	If needed	All maintenance is documented	Unknown	CCTV of the affected line	
3	3SSO11609	Active	Pacific Grove City CS	Pacific Grove City	894253	1.2	Certified	Daniel Gho	Director		02-APR-24	02-APR-24	Monthly Category 3 Spill	824 Maple Street	03/24/2024 11:27	03/24/2024 11:55	03/24/2024 12:07				Cleanout beside 824 Maple Street	36.61559	-121.92751	Lateral Clean Out (Private)			150	Sewage coming out of a cleanout beside the driveway at 824 Maple Street in Pacific Grove.  	N						50	Unpaved Surface		The spill ended up on land where a drain field discharges										03/24/2024 12:07	flow evaluation and estimates	Notifications by emergency responders	Debris-Rags; Root Intrusion		Gravity Mainline		Vitrified Clay		75	No impact	N	Cleaned Up (specify below); Returned Portion of Spill to Sanitary Sewer System		Emergency responders dyked the spill.  Public Works then responded and cleared the blockage.  	Inspected Sewer Using CCTV to Determine Cause		CCTV of the line to evaluate the condition		04/02/2024 11:12	Rags and roots		CCTV of the affected line	04/19/2024 11:28														No enforcement	Increased maintenance and root control	Increased maintenance 	Unknown at his time	Inspection will occur	If needed	All maintenance is documented	Unknown	CCTV of the affected line	
5F	5SSO11202	Active	City of Fresno CS	County of Fresno	894255	1.6	Certified	Arturo Alvarez	Wastewater Manager, Certified	03-APR-24	12-APR-24	12-APR-24	Category 1 Spill	1728 N. Angus St.	03/29/2024 13:16	03/29/2024 14:35	03/26/2024 15:00	03/29/2024 20:39	24-1898		The spill originated from a single City sewer manhole, 2257-14.	36.76639	-119.77705	Manhole	n/a	n/a	4400	The spill entered a Fresno Metropolitan Flood Control District (FMFCD) drain inlet (DI) at the southern end of N. Angus St., south of E. University Ave. The drainage conveyance system continues west along E. McKinley Ave. and turns south at N. Clark St., terminating at Basin CC at N. Clark St. and E. Floradora Ave. Basin CC pumps into Fresno Irrigation District FID canal Dry Creek No. 75 at the same intersection.	Y	(See 9.)	0	0	Basin CC pumps into FID canal (Dry Creek No. 75) at the intersection of N. Clark St. and E. Floradora Ave. 	3810	590	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Groundwater Infiltration Basin or Facility; Street/Curb and Gutter (2 3); Surface Water	n/a	The spill entered a Fresno Metropolitan Flood Control District (FMFCD) drain inlet (DI) at the southern end of N. Angus St., south of E. University Ave. The drainage conveyance system continues west along E. McKinley Ave. and turns south at N. Clark St., terminating at Basin CC at N. Clark St. and E. Floradora Ave. Basin CC pumps into Fresno Irrigation District (FID) canal Dry Creek No. 75 at the same intersection.	Y	36.76121	-119.78736	36.7613	-119.786					03/29/2024 15:35	The estimated spill volume was calculated using calibrated hydraulic flow modeling.	The estimated spill start time was reported by the Reporting Party. The spill end time was determined based on the time the mainline blockage was broken.	Fats, Oil and Grease (FOG)	n/a	Gravity Mainline	n/a	Vitrified Clay	n/a	54	The spill entered a Fresno Metropolitan Flood Control District (FMFCD) drain inlet (DI) at the southern end of N. Angus St., south of E. University Ave. The drainage conveyance system continues west along E. McKinley Ave. and turns south at N. Clark St., terminating at Basin CC at N. Clark St. and E. Floradora Ave. Basin CC pumps into FID canal Dry Creek No. 75 at the same intersection.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	n/a	FMFCD DI #1 was protected 03-29-24 at 14:36 with dirt and sandbags. The sewer mainline blockage was broken 03-29-24 at 15:35. The spill area around MH 2257-14 was cleaned and sanitized. The FMFCD drainage conveyance system was flushed and vacuumed from DI #1 to MH #8. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	04-09-24: Distributed FOG educational door hangers to properties connected to the affected mainline and the three mainlines immediately upstream/downstream.	04-02-24: Mainline video inspection of affected mainline 2257-10-2257-11. 04-05-24: Affected mainline cleaned. Attempted mainline video inspection, upstream MH not accessible. Coordinated with property owner (Reporting Party) to get access to upstream MH on morning of 04-08-24. 04-08-24: Mainline cleaned and inspected.  04-09-24: Distributed FOG educational door hangers to properties on affected mainline and mainlines immediately up/downstream of affected mainline.	Affected mainline 2257-10-2257-11 was added to the 180-day high frequency preventative maintenance cleaning schedule.	03/29/2024 20:15	(See Attachment.)	N	n/a		FMFCD percolation basin (Basin CC); Fresno Irrigation District canal (Dry Creek No. 75)	Other (specify below)	FMFCD percolation basin (Basin CC). FID irrigation canal (Dry Creek No. 75).	FMFCD percolation basin (Basin CC). FID irrigation canal (Dry Creek No. 75).	n/a	Other (specify below)	n/a	n/a	0	N	Y	(See Attachment.)	Water quality samples analyzed for ammonia and appropriate bacterial indicators, per GENERAL ORDER 2022-0103-DWQ 2.3.2. Receiving Water � Water Quality Sampling and Analysis. (See Attachment.) 									n/a	
5F	5SSO11202	Historical	City of Fresno CS	County of Fresno	894255	1.6	Certified	Arturo Alvarez	Wastewater Manager, Certified	03-APR-24	12-APR-24	12-APR-24	Category 1 Spill	1728 N. Angus St.	03/29/2024 13:16	03/29/2024 14:35	03/26/2024 15:00	03/29/2024 20:39	24-1898		The spill originated from a single City sewer manhole, 2257-14.	36.76639	-119.77705	Manhole	n/a	n/a	4400	The spill entered a Fresno Metropolitan Flood Control District (FMFCD) drain inlet (DI) at the southern end of N. Angus St., south of E. University Ave. The drainage conveyance system continues west along E. McKinley Ave. and turns south at N. Clark St., terminating at Basin CC at N. Clark St. and E. Floradora Ave. Basin CC pumps into Fresno Irrigation District FID canal Dry Creek No. 75 at the same intersection.	Y	(See 9.)	0	0	Basin CC pumps into FID canal (Dry Creek No. 75) at the intersection of N. Clark St. and E. Floradora Ave. 	3810	590	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Groundwater Infiltration Basin or Facility; Street/Curb and Gutter (2 3); Surface Water	n/a	The spill entered a Fresno Metropolitan Flood Control District (FMFCD) drain inlet (DI) at the southern end of N. Angus St., south of E. University Ave. The drainage conveyance system continues west along E. McKinley Ave. and turns south at N. Clark St., terminating at Basin CC at N. Clark St. and E. Floradora Ave. Basin CC pumps into Fresno Irrigation District (FID) canal Dry Creek No. 75 at the same intersection.	Y	36.76121	-119.78736	36.7613	-119.786					03/29/2024 15:35	The estimated spill volume was calculated using calibrated hydraulic flow modeling.	The estimated spill start time was reported by the Reporting Party. The spill end time was determined based on the time the mainline blockage was broken.	Fats, Oil and Grease (FOG)	n/a	Gravity Mainline	n/a	Vitrified Clay	n/a	54	The spill entered a Fresno Metropolitan Flood Control District (FMFCD) drain inlet (DI) at the southern end of N. Angus St., south of E. University Ave. The drainage conveyance system continues west along E. McKinley Ave. and turns south at N. Clark St., terminating at Basin CC at N. Clark St. and E. Floradora Ave. Basin CC pumps into FID canal Dry Creek No. 75 at the same intersection.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	n/a	FMFCD DI #1 was protected 03-29-24 at 14:36 with dirt and sandbags. The sewer mainline blockage was broken 03-29-24 at 15:35. The spill area around MH 2257-14 was cleaned and sanitized. The FMFCD drainage conveyance system was flushed and vacuumed from DI #1 to MH #8. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	04-09-24: Distributed FOG educational door hangers to properties connected to the affected mainline and the three mainlines immediately upstream/downstream.	04-02-24: Mainline video inspection of affected mainline 2257-10-2257-11. 04-05-24: Affected mainline cleaned. Attempted mainline video inspection, upstream MH not accessible. Coordinated with property owner (Reporting Party) to get access to upstream MH on morning of 04-08-24. 04-08-24: Mainline cleaned and inspected.  04-09-24: Distributed FOG educational door hangers to properties on affected mainline and mainlines immediately up/downstream of affected mainline.	Affected mainline 2257-10-2257-11 was added to the 180-day high frequency preventative maintenance cleaning schedule.	03/29/2024 20:15	(See Attachment.)	N	n/a		FMFCD percolation basin (Basin CC); Fresno Irrigation District canal (Dry Creek No. 75)	Other (specify below)	FMFCD percolation basin (Basin CC). FID irrigation canal (Dry Creek No. 75).	FMFCD percolation basin (Basin CC). FID irrigation canal (Dry Creek No. 75).	n/a	Other (specify below)	n/a	n/a	0	N	Y	(See Attachment.)	Water quality samples analyzed for ammonia and appropriate bacterial indicators, per GENERAL ORDER 2022-0103-DWQ 2.3.2. Receiving Water � Water Quality Sampling and Analysis. (See Attachment.) 									n/a	
1	1SSO11467	Active	Fort Bragg City CS	Fort Bragg Municipal Improvement Dist 1	894260	1.6	Certified	John Smith	Director of Public Works	02-APR-24	06-JUN-24	06-JUN-24	Category 2 Spill	North Harbor Dr	04/02/2024 07:59	04/02/2024 07:59	04/02/2024 05:00	04/02/2024 10:35	24-1961		Forced main had a half circle crack on shoulder of roadway.  It was coming strait up to the surface of the shoulder of the roadway.   	39.42716	-123.80292	Force Main		N/A	9900	The sewage was all liquids with no visible solids.  it was leaving the appearance point and running across the roadway and down approximately 300 feet to and area that had sandbags and diverted it over the bank into heavy vegetation.  	N						100	Paved Surface; Unpaved Surface		The sewage  was all liquids with no visible solids.  It was leaving the appearance point and running across the roadway and down approximately 300 feet to an area that had sandbags that diverted it over to a heavily vegetated area.  	Y	39.42716	-123.80292							04/02/2024 14:28	Pump station readings, used SCADA information to figure each pump down cycle.  	SCADA pump station readings  	Pipe Structural Problem/Failure - Controls		Force Main		Other (specify below)	Tekite Pipe	50	Absorbed into heavily vegetated area along the roadside.   	N	Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Called out additional resources to remove contents of wet well to prevent pumping at the pump Staton.	Plan Rehabilitation or Replacement of Sewer		Rehabilitation or replacement of the segment such as CIPP. 	compete in 2024.	04/02/2024 15:16	Failed force main line due to old age.  	N												N													
5S	5SSO11433	Active	City of Stockton MUD CS	Stockton City MUD	894262	1.1	Certified	Dagmara Saini	Program Manager III		18-APR-24	18-APR-24	Monthly Category 3 Spill	1135 W Fremont St	10/23/2023 08:25	10/23/2023 08:35	10/23/2023 07:30				Spill occurred From Private CO on Argonaut St side of address	37.95515	-121.30772	Lateral Clean Out (Private)			60	Photo Descriptions in attachment tab	N						60	Street/Curb and Gutter (2 3)		Spill contained in gutter and sidewalk area of property										10/23/2023 09:00	We used a spill volume calculator based on the measurements of the spill captured in the curb and gutter.  	The spill start and end time are based on the time the spill was reported and the time we were able to stop the spill.  The reporting phone call was anonymous and there were no other witnesses.  	Debris-General		Lower Lateral		Vitrified Clay		100	None	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Used Hydro truck to clean and vacuum the impacted area of the spill.	Inspected Sewer Using CCTV to Determine Cause		CCTV the Sanitary Lateral and implement any repairs or adjustments to a PM (if applicable) that are needed.		10/23/2023 09:00	The Sanitary Lateral and implement any repairs or adjustments to a PM (if applicable) that are needed . at this time none are needed,		CCTV the Sanitary Lateral and implement any repairs or adjustments to a PM (if applicable) that are needed.	10/23/2023 09:00														NA	CCTV the Sanitary Lateral and implement any repairs or adjustments to a PM (if applicable) that are needed.	CCTV the Sanitary Lateral and implement any repairs or adjustments to a PM (if applicable) that are needed.	None	Inspected Asset repair deemed not necessary at this point in time 	None	None	.Used Hydro truck to clean and vacuum the impacted area of the spill.	CCTV the Sanitary Lateral and implement any repairs or adjustments to a PM (if applicable) that are needed.	
5S	5SSO11066	Active	Tracy CS	Tracy City	894264	1.2	Certified	Wayne Bogart	Superintendent		03-APR-24	03-APR-24	Monthly Category 3 Spill	10863 Clover Rd.	03/26/2024 09:40	03/26/2024 09:45	03/26/2024 09:15				Pictures of Origin of spill attached	37.76172	-121.43952	Manhole			300	Extent of spill and boundaries picture attached	Y	Catch basin about 15 feet away	300				300	Drainage Conveyance System		catch basin 15 feet south/west of the manhole pictures attached	Y	37.76122	-121.4397							03/26/2024 10:15	Picture comparison in SSO response book 	Fellow worker had seen water in the street went back after he finished his job saw what it was and called it in. He estimated his first time by at around 9:15 am End time was when water quit coming out of pick hole	Fats, Oil and Grease (FOG)		Manhole		Vitrified Clay		60	Spill went into gutter then into the catch basin	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Dirt dam to stop the flow into DI after cleared the line wash down while using the vaccon truck	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance		Put area of spill on the weekly hot spot list		03/26/2024 12:30	Checked line after cleaning upstream, and downstream Sewer line is clean and running 		None needed	03/26/2024 12:30														None as it was city sewer line	Made adjustments on how often line is checked	Yes will change this area to weekly	None as line is in good shape	Cleared and cleaned line with VACCON	None	Just added to the hot spot list	Worker called in contacted sewer crew they sent two guys right away to take care of the issue	None needed	
3	3SSO11465	Active	Goleta West SD CS	Goleta West SD	893543	2.1	Amended	Brian McCarthy	General Manager	23-FEB-24	02-APR-24	02-APR-24	Category 1 Spill	Airport Force Main 24	02/17/2024 08:24	02/17/2024 09:15	02/16/2024 19:22	02/17/2024 18:00	24-0124	02-APR-24	30 feet south of the south west corner of runway 33L at the Santa Barbara Municipal Airport.	34.4193	-119.83825	Force Main			1086000	Spill was originating out of the ground, 30 feet south of the southwestern corner of Runway 33L at the Santa Barbara Municipal Airport. Flow headed west and into the tributary spread across 145 linear feet of the embankment. Flow spread around the spill origin covering roughly 50 foot diameter circle area. Spill also headed south along the eastern edge of the service road in a 10 foot wide stream, then east along the northern edge of the service road where it pooled on the north side of the service road and created a triangular shaped wetted area. Flow also crossed over service road to the south and pooled in a drainage area. See attached spill map. 	Y	Tributary to west of spill origin that flows south roughly 400' and connects to Tecolotito Creek, which eventually leads to Pacific Ocean.	0	1022500	To the west of spill origin across 143' of embankment into tributary of Tecolotito Creek.	1022500	17000	Drainage Conveyance System that discharges to surface water		Spill was originating out of the ground, 30 feet south of the southwestern corner of Runway 33L at the Santa Barbara Municipal Airport. Flow headed west and into the tributary spread across 145 linear feet of the embankment. Flow spread around the spill origin covering roughly 50 foot diameter circle area. Spill also headed south along the eastern edge of the service road in a 10 foot wide stream, then east along the northern edge of the service road where it pooled on the north side of the service road and created a triangular shaped wetted area. Flow also crossed over service road to the south and pooled in a drainage area. See attached spill map. The spill origin is 30 feet from tributary of Tecolotito Creek, 1,000 linear feet from main body of Tecolotito Creek. Roughly 6,000 linear feet from location of spill entering the tributary to Goleta Slough inlet at Pacific Ocean if travelling along the waterway. Tributary had existing flowing water in it at time of spill. 	Y	34.41915	-119.83844	34.41915	-119.83848	34.41849	-119.8378	34.41902	-119.83724	02/17/2024 09:00	Assumed duration based on the earliest possible start time. Assumed total volume based on comparative average flow data. Assumed constant discharge throughout duration. For spill volume estimation, used flow telemetry at the regional treatment plant (operated by Goleta Sanitary District) to determine when leak occurred based on drop in flow received. Calculated total volume received at treatment plant during this time period and compared to historical average flow during the same time period. Estimated volume that did not enter the tributary by measuring wetted areas around spill origin and calculated volume based on average depths of wetted areas. Recovered amount calculated by known capacity of equipment used to remove wastewater and debris.	Assumed spill start time based on analyzing flow telemetry and noting when flow received at regional treatment plant dropped off from normal. Spill stop time determined by field observation of when water stopped coming out of ground after all valves were closed and pipe was isolated.	Other (specify below)	Primary cause of failure was external corrosion of the 24-inch force main caused by imperfect external corrosion protection and severely corrosive soils (severely corrosive, high chloride). No evidence of internal corrosion. Determined not to be caused by District�s operations. See attachment for #4.a for details.	Force Main		Ductile Iron		46	Current estimates are approximately 1,140,657 gallons of raw wastewater spilled from site. Roughly 68,961 gallons were contained within non-native dominated grassy area, of which 12,000 gallons were recovered by Vac truck and 21.25 tons of saturated solids were recovered and removed by dump truck, with approximately 1,593 gallons of wastewater. Approximately 1,116 gallons saturated soils. 1,071,969 gallons likely entered a tributary to Tecolotito Creek which eventually drains to the Pacific Ocean. Approximately a day and a half into response activities, spill area received approximately 3 inches of rain. Site monitoring is ongoing.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Other Enforcement Agency Notified; Property Owner Notified; Returned Portion of Spill to Sanitary Sewer System	See attachment for response to #9. In addition to details in attachment for response to #9, District removed 21.25 tons of wastewater solids on February 17 and March 28, revegetated the grassy area upland from embankment to tributary, and continues to monitor site.	See attachment for response to #9.	Repaired Facilities or Replaced Defect		See attachment to #10. In addition to details in attachment to #10, District has completed updates to its force main recommissioning SOP, received training on its updated SERP, set up temporary inflow monitoring and updated its integration of GSD�s flow data with the District�s SCADA, updated its contingency plan, replaced coupling bolts to reduce any other potential failure point, pressure tested the 24� line prior to recommissioning with engineers, and recommissioned the line successfully on 5/1. District retained additional compliance support over next several months to ensure highest standard of operations. More corrective action details in 4/2 Technical Report and 5/17 Update to Technical Report.	See attachment to #10.	03/01/2024 17:06	Uncovered pipe and found exterior coating of ductile iron had been compromised. Hole was roughly 6� in diameter with a 5� crack running from the hole along the side of the pipe. Independent engineer further investigated pipe and soil conditions and determined primary cause of failure was external corrosion of the 24-inch force main caused by imperfect external corrosion protection and severely corrosive soils (severely corrosive, high chloride). Details in Attachment 4 of May Technical Report Update. Expected life expectancy of pipe is 60 to 100 years and pipe age is 46 years. During excavation and replacement of portion of failed pipe, remaining pipe visually inspected with no issues seen. 	Y	GWSD will continue further investigation of incident alongside the broader assessment of forcemains for future rehabilitation or replacement with contracted engineering firm that has already begun to ensure incident does not occur again.	07/01/2024 18:30	Tributary to Tecolotito Creek, Mouth of Goleta Slough, Pacific Ocean	Ocean; Other (specify below)	Tributary located at south edge of estuary/slough	Tributary along south side of Goleta Slough which is designated as a state marine preserve and closed to fishing or collecting as marine protected area. Tributary joins Tecolotito Creek upstream of confluence with other creeks at Goleta Slough mouth to Pacific Ocean.  Multiple uses for water bodies defined in Basin Plan.	Staff has been monitoring tributary, Tecolotito Creek, and Goleta Slough multiple times on day of spill and subsequent weeks after, including 2/17, 2/18, 2/20 through 2/23, and 2/27 through present. This was done during water sampling activities as well as other site visits specifically to observe the waterway and aquatic life. No apparent impacts on aquatic life observed. Monitoring ongoing, and District in communication with California Public Health Department and retained Geosyntec Consultants for support.	Other (specify below); Public Closure	The local public health department issued a Beach Advisory on 2/16, before the spill in anticipation of water quality impacts of forecasted storm on 2/18 to 2/19. GWSD tracked whether the Goleta Beach area was closed and followed up to confirm. GWSD reached out to the local public health department on 2/21 and understands the beach was closed that day. GWSD was told by County staff on 2/25 that the beach was closed due to unrelated dredging and beach replenishment activities in the Goleta Slough by Santa Barbara County Flood Control District that started on 2/20. Based on water quality data, beach could be opened by 3/4, but was not reopened until 3/15 due to the unrelated beach replenishment activities and rain.	Santa Barbara County Public Health Department and Environmental Health Services	13	N	Y	Water samples were taken from 4 separate locations within the receiving tributary and downstream in Tecolotito Creek on 2/17 in the afternoon. Upstream from the discharge point, at the discharge point, and two downstream of the discharge point where water is fully mixed with receiving water. Additional samples were taken upstream of the contact point and below for reference. Samples were taken at sample sites 1 through 4 between 3:30PM and 4:00PM on 2/17/24. Sample site 4 was replaced by sample site 5 & 6 during the next sampling period on 2/22/24. Sample sites 1, 2, 3, 5 & 6 were sampled again on 2/27 and 2/29/24. Refer to sample location map for specific locations.  GWSD understands samples are also being collected by other local agencies including local health department.	All samples were analyzed for total and fecal coliform and ammonia.  GWSD is consulting with other agencies, plans including Ocean Plan, and continuing to sample post-spill conditions until further guidance.									GWSD will continue further investigation of incident alongside the broader assessment of forcemains for future rehabilitation or replacement with contracted engineering firm that has already begun to ensure incident does not occur again.	
5S	5SSO11343	Active	Santa Nella CWD CS	Santa Nella CWD	894268	1.5	Certified	Amy Montgomery	General Manager		03-APR-24	03-APR-24	Monthly Category 3 Spill	Northwest  of Mission lift station 	03/20/2024 08:15	03/20/2024 08:30	03/20/2024 07:15				Three small holes in the 8  sewer force main. 	37.099176	-121.016133	Force Main		Single location 	200	Small puddle out in a field in our property 	N						50	Unpaved Surface		Small contain Spill about a 5ft to 10ft radius	N									03/21/2024 10:00	Estimated  radius and depth	Estimated radius and depth	Construction Diversion Failure	Three small holes on top of the sewer main 	Force Main		Other (specify below)	Asbestos Cement 	65	No impact other than cost of repai.	N	Contained All or Portion of Spill; Returned Portion of Spill to Sanitary Sewer System		Used vac truck to clean up  the spill.	Repaired Facilities or Replaced Defect		Inspection of weak points on the sewer force main.		03/21/2024 15:00	One of our Operators saw a wet spot in the ground.  We determined that it was sewer excavate the area saw the small holes in the force main, repaired and cleaned up. 		Inspection of force main in the area.	03/21/2024 15:30														None, Spill was maintained and cleaned up. 	Daily visual inspections.	Daily visual inspection weekends,  	Make plans after sewer main assessment.	Yes	Possible 	Assessment and planning for sewer force main repairs. 	Visually inspect on a daily basis even on weekends during our weeken duty. Have emergency contacts on hand.	Inspection of force main in the area.	
5S	5SSO10938	Active	Easterly CS	Vacaville City DPW	894270	1.2	Certified	Justen Cole	Director Of Utilities	03-APR-24	14-APR-24	14-APR-24	Category 1 Spill	1130 E. Monte Vista Ave.	03/30/2024 08:34	03/30/2024 09:11	03/29/2024 20:30	03/30/2024 10:49	24-1905		Appearance point is at SSMH3549 which is located in the alleyway behind a restaurant and the private drain inlet is within 13-feet and the pavement is sloped towards the drain inlet. 	38.35982	-121.97577	Manhole			2355	Photographs include the initial flow out of the SSMH, the location of the private drain inlet, and the dimensions of the spill boundaries.	Y	The private drain inlet flows to the public SDIN207 on E. Monte Vista Ave (EMVA), then to SDIN206 on EMVA, then to SDIN205 on EMVA, then to SDMH1607 at Corner of EMVA and Callen St., then to SDMH52 on Callen St., then to SDIN6432 on Callen St., then to SDIN226 on private property at 1260 Callen St., then to SDOUT276.	1399	0	The storm drain system crosses Interstate-80 from SDIN6432 on Callen St. through private property at 1260 Callen St. to the SDOUT276 outfall.	956	1399	Drainage Conveyance System that discharges to surface water; Paved Surface		Spill began at appearance point at SSMH3549 then entered private drain inlet into the public storm drain system at SDIN207 then exited at SDOUT276 into Ulatis Creek.	Y	38.35985	-121.97575	38.36029	-121.97582	38.35953	-121.97425	38.35865	-121.97328	03/30/2024 12:54	The volume estimate was calculated by using the estimated start time and end time and using  SSO Flow Out of MH with Cover in Place  method from the Orange County  Sewer Estimation Guide  revised May 15, 2014. In addition, the land volume estimate was calculated by the area/volume method and the volume estimate within the storm drain system was calculated with the  Volume Contained in Partially Filled Pipe  worksheets. 	The start time is determined by an interview with the reporting party (RP) and the last time the RP did not see any spill.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		59	Spill reached Ulatis Creek. Creek has significant flow from upstream tributaries. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Washed down spill on land to private drain inlet while using vactor.	A barrier was placed over the private drain inlet and a dirt berm/dam was created to prevent further flow into the private drain inlet. 	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	An FSE inspection will be conducted to assess if enforcement is warranted. The SSMH was added to the Hot Spot list.	Immediate action is to add the location to the hot spot list. Secondly, coordinate an FSE inspection to verify if all BMPs and equipment is in working order. Thirdly, City staff will assess condition of SSMH and current elevations to assess additional improvements to prevent future spills. 	FSE Inspection to be conducted by end of April or beginning of May. Review of gravity main line construction and assessment to be completed by mid-May. Any improvements are to be determined. 	03/30/2024 13:59	FG was the cause of the spill. Staff will determine schedule of on-site inspections.	Y	Additional investigation is needed to check volume estimation, provide creek sampling locations map, and determine any enforcement action.	06/21/2024 17:00	Ulatis Creek	Other (specify below)	Creek	Seasonal creek.	None	Other (specify below)	Due to the creek being adjacent to the Interstate-80 highway, there already inaccessible to the public. City staff had to park on the highway shoulder to get pictures and creek water samples.	City of Vacaville	0	N	Y	To be uploaded after additional investigation is completed. Key staff were not available before the report due date.	pH, Temperature, Conductivity, Total Coliform, and Fecal Coliform									Additional investigation is needed to check volume estimation, provide creek sampling locations map, and determine any enforcement action.	
3	3SSO10296	Active	Monterey One Water Reg Trtmt & Outfall Sys CS	Monterey One Water	894273	1.2	Certified	Darrele Harris	utilities and maint manager		14-MAY-24	14-MAY-24	Monthly Category 3 Spill	Castroville Pump Station	04/01/2024 08:30	04/01/2024 08:30	04/01/2024 08:30				The spill originated from a failed solenoid valve on the pump station surge tank add air system. See attached photos.   	36.76869	-121.76674	Pump Station			300	See attachments for photos of the extent of the spill and spill boundaries.  Wastewater pooled on paved surfaces within the pump station boundary which was immediately bermed. A portion of the flows surpassed this berm and subsequently discharged to unpaved surfaces, including two agricultural drainage ditches (6-inch and 4-inch diameter respectively) agricultural drainage ditches adjacent to the pump station. Both of the agricultural drainage ditches were also bermed to contain the flow and prevent entry into surface waters. 	Y	~10 of the 300 total gallons of the spill surpassed the first berm constructed within the pump station boundary, entering the two agricultural drainage ditches which collect agricultural drainage water from the area and discharge it to the Tembladero Slough. Flow that entered both drainage ditches was captured by berms constructed by M1W and recovered prior to entry to the Slough. Note that the drainage culvert transporting a portion of the wastewater flows to one of the bermed agricultural drainage ditches was approximately 90% occluded, further constricting flow. See photos attached.	10				300	Drainage Conveyance System; Paved Surface; Unpaved Surface		The spill was the result of a failed solenoid valve on the pump station surge tank add air system. The valve remained stuck in the open position resulting in wastewater backflowing through the air relief line and discharging onto the paved ground within the pump station boundaries. There were two spill discharge points adjacent to the pump station, both of which were successfully bermed to capture all flows for recovery by vacuum truck. See attached photos for visual of the spill area.	Y	36.76869	-121.76674							04/01/2024 08:45	The spill start time was determined based on discussion with the field maintenance mechanic who arrived onsite shortly after the spill began for daily routine checks as well as visual estimation method. Based on the spill footprint on the paved surfaces within the pump station boundary, the spill was estimated to have began at 08:30. Video was taken of the discharge stream exiting the pump station add air system, which showed a spill flowrate of 20 gpm. This information was then used to estimate spill volume:  20 gpm x 15 minutes = 300 gallons discharged  	See above response to number 13.	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure		Air Relief Valve (ARV)/ Blow-Off Valve (BOV)		Galvanized Steel		10	All flows were captured by berms constructed by M1W prior to entry to surface water. See attached for an aerial depicting the spill footprint. 50 of the 300 gallons spilled were unrecovered after discharge to unpaved surfaces.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Returned Portion of Spill to Sanitary Sewer System		Upon arrival onsite, the field maintenance mechanic constructed a primary berm to contain wastewater flows within the paved surfaces of the pump station, as well as berms on the two adjacent agricultural drainage ditches while the root cause could be identified and condition corrected. Additional resources were dispatched to the site to assist with cleanup efforts which included disinfecting and washing down paved surfaces, disinfecting affected unpaved surfaces, and vacuuming up bermed flows for proper disposal.	Adjusted Schedule/Method of Preventive Maintenance; Repaired Facilities or Replaced Defect		M1W installed a new solenoid bleed valve to replace the defective one that caused the spill, and the inspection frequency for these assets was increased from annually to quarterly. In addition, the relief for the add air system was rerouted to a drain that returns flows to the wet well which will prevent spills of this nature in the future. M1W screened its entire network of pump stations to identify any similar discharge configurations, and preemptively modified them to reroute discharge flows to station wet wells. Finally, M1W added new Supervisory Control and Data Acquisition System (SCADA) monitoring to include high and low level alarms for the surge tank.		04/01/2024 15:00	Upon arrival onsite, maintenance management interviewed the initial responder for necessary information to determine spill volume, category, and suspected root causes.  Additional resources were then dispatched to assist with cleanup efforts including M1W utilities, environmental services, and vacuum truck. Notifications were provided to regulatory entities. After notifications were made and cleanup was completed, M1W management staff met to discuss the incident and conduct a root cause analysis. As a result of the root cause analysis, M1W implemented the following corrective and preventative actions:  1.Installed a new solenoid bleed valve to replace the defective one 2.Increased the inspection frequency from annually to quarterly.  3.Added SCADA monitoring to include new low and high level alarms    4.Rerouted the relief for the add air system to a drain system that returns flow to the wetwell.		N/A	04/01/2024 15:00														N/A	See response to 20.b., above.	See response to 20.b., above.	M1W will continue to replace these valves according to manufacturer recommendation, or as deemed necessary per the quarterly inspections implemented.	See response to 20.b., above.	N/A	See attachments for the following documentation:  �Computerized Maintenance Management System (CMMS) recurring PM schedule  	N/A	N/A	
5R	5SSO10845	Active	Red Bluff CS	Red Bluff City 	894284	1.1	Certified	Dusty Brown	Wastewater Collections Supervisor		03-APR-24	03-APR-24	Monthly Category 3 Spill	1540 Scottsdale Way	04/01/2024 16:50	04/01/2024 17:05	04/01/2024 16:45				manhole in front of 1540 Scottsdale Way	40.16895	-122.24984	Manhole			100	Spill had stopped prior to on-call maintenance worker arrival. Pictures of spill are at time of arrival. 	Y	shallow 15  concrete pipe drains from street side DI to rear of property and along back of properties 1975 feet from discharge location.	95				100	Drainage Conveyance System that discharges to surface water		DI 35 ft from MH	Y	40.16889	-122.24973							04/01/2024 17:03	measurements LxWxH	measurement of spill location	Debris-wipes/Non-disposables		Gravity Mainline		Concrete		65	No impact to pipe, pipe will be added for rodding. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		min response time, vac spill and rod pipe.	Adjusted Schedule/Method of Preventive Maintenance		adjust rodding schedule 		04/01/2024 17:30	double check spill area and verify pictures. 		none	04/02/2024 12:00														none	adjust rodding schedule 	yes	none	none	none		none	none	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	894285	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	03-APR-24	09-APR-24	09-APR-24	Category 2 Spill	8975 Golf Links Road, Oakland Ca	03/30/2024 12:55	03/30/2024 13:35	03/29/2024 12:00	04/03/2024 07:32	24-1986		Manhole on a hillside on the front left side of the lot was overflowing onto the unpaved surface and flowed into concrete paved surface in front of the house, where it was contained by sandbags.	37.75782	-122.15578	Manhole			1222	Manhole on a hillside on the front left side of the lot was overflowing onto the unpaved surface and flowed into concrete paved surface in front of the house, where it was contained by sandbags.	N						0	Paved Surface; Unpaved Surface	Manhole on a hillside on the front left side of the lot was overflowing onto the unpaved surface and flowed into concrete paved surface in front of the house, where it was contained by sandbags.	Manhole on a hillside on the front left side of the lot was overflowing onto the unpaved surface and flowed into concrete paved surface in front of the house, where it was contained by sandbags.	Y	37.75782	-122.15578							03/30/2024 17:45	84' L x 12' W x 0.17 D x 7.48 x .1875 = 240 gallons Average width: 24' + 16' + 12' + 9' + 6' + 3' = 72 / 6 = 12' Concrete Surface: 30' L x 21' D x .2083' D x 7.48 = 982 gallons Average depth: 4  + 3  + 2  + 1  = 10  / 4 = 2.5  (.2083') Total Spill: 982 + 240 = 1,222 gallons.	Start time was based on eyewitness account. End time was based on when responding crew restoring the in the mainline.	Root Intrusion		Gravity Mainline		Other (specify below)	PE	22	Manhole on a hillside on the front left side of the lot was overflowing onto the unpaved surface and flowed into concrete paved surface in front of the house, where it was contained by sandbags.	N	Cleaned Up (specify below); Restored Flow	Sewer crew removed solids from spoils from the affected area.	Sewer crew removed solids from spoils from the affected area.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Gravity mainline has been added to six-month high frequency program. # 1516333.	Gravity mainline has been added to six-month high frequency program. # 1516333.	03/31/2024 12:00	CCTV inspection found a root intrusion growing through the barrel of the manhole into the invert causing the blockage.	N												Y													
2	2SSO10179	Active	San Jose City CS	San Jose City	894289	1.2	Certified	Alberto Gaxiola	Associate Engineer	03-APR-24	16-APR-24	16-APR-24	Category 1 Spill	Vista Verde Dr and Cuesta Dr, San Jose CA 95148	04/01/2024 11:11	04/01/2024 11:40	04/01/2024 09:30	04/01/2024 13:03	24-1939		The spill appearance point was a sanitary sewer manhole at the intersection of Vista Verde Dr and Cuesta Dr in San Jose, CA. A picture of the overflowing manhole was uploaded as an attachment named  SpillGeneralInfo_07_SpillAppearancePointMH34163 . 	37.340430707681	-121.79751331802	Manhole			4290	Sewage discharged from the spill appearance point (manhole) onto the street and traveled along the street and curb/gutter.  From the curb/gutter, the sewage eventually reached and entered a nearby storm drain system inlet. This storm inlet is connected to the City of San Jose's municipal storm sewer system. The sewage then traveled within the storm system to a storm drain outfall and discharged to Ruby Creek. Pictures of the spill boundary on land are uploaded as attachments named  SpillGeneralInfo_09_SpillBoundary_Asphalt ,  SpillGeneralInfo_9_SpillBoundary_CurbGutter1 ,  SpillGeneralInfo_09_SpillBoundary_CurbGutter2 ,  SpillGeneralInfo_09_SpillBoundary_CurbGutter3 , and  SpillGeneralInfo_09_SpillBoundary_CurbGutter4 . In addition to the pictures, a map of the spill boundary on land was uploaded as an attachment named  SpillGeneralInfo_9_SpillBoundaryMap .	Y	The spill reached two nearby storm drain inlets upon arrival. The first inlet (#5273) along Cuesta Dr was approximately 49 ft from the spill appearance point. The second inlet (#5280) along Vista Verde Dr was approximately 506 ft from the spill appearance point. Both storm drain inlets are connected to the same storm drain sewer system which flows south along Vista Verde Dr.  The sewage traveled within the storm system to a storm outfall discharge point along Ruby Creek. The responding Crew observed existing flow in the storm drain conveyance system from a recent rain event that occurred on 3/29/2024 and 3/30/2024. This existing stormwater flow mixed with the spill (sewage) and was diluted in the storm drain conveyance system. Pictures of the spill entering and within the storm drain conveyance system are uploaded as attachments. In addition to the pictures, a map of the spill path within the storm drain conveyance system is also included. 	0	3622	It was assumed that sewage reached Ruby Creek by discharging from a storm drain system outfall. The longitude and latitude location of the storm outfall along the Ruby Creek is approximately at 37.33790991437537,-121.80315400022855. Upon arrival, the responding Crew placed health warning signs to notify the public. Pictures of the storm drain outfall and health warning signs are included in the attachments. 	3622	668	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		The spill (sewage) traveled along the street curb and gutter from the manhole at the intersection of Vista Verde Dr and Cuesta Dr (spill appearance point). The manhole is identified in 1.d. and 1.e. The spill reached and traveled along the curb and gutter, then entered City's storm inlet and drainage system. The location of the storm drain inlets are identified in 1.f/1.g and 1.h/1.i. The spill reached the nearby surface water of Lower Silver Creek through a storm outfall discharge point. The storm outfall discharge point is identified in 1.j and 1.k.	Y	37.340559558203	-121.797519020096	37.340447117915	-121.79735531802	37.339279443571	-121.796545271393	37.337909914375	-121.803154000229	04/01/2024 11:53	The total SSO spill volume was estimated by using the approximate flow rate and spill duration. An assumed spill start time was estimated by gathering information from the reporting party. To determine the portion of spill which contained on land, the Crew used approximate measurements to estimate the recovered volume. All of the spill that reached the separate storm drain system was assumed to have been lost to the waterway due to the recent rain on 3/29/2024 and 3/30/2024. Rain from the previous days had introduced stormwater into the MS4 that continued to flow in the system on 4/1/2024. As a result, the spill that entered the storm drain conveyance system mixed with the existing stormwater flow.	The reporting party first noticed the spill on 4/1/2024 at 10:30. At that time, the reporting party stated that the spill had already reached a nearby storm drain inlet. As a result, the SSO started some time that morning before the reporting party first noticed. Upon arrival to the spill, the responding Crew observed that there were not many tire marks or stains from cars passing through the spill area. The lack of car tire marks meant that the spill had not been going on for a long period of time. Combing the available information and high visibility of the spill appearance point, it was then assumed that the spill likely started within an hour of the reporting party first noticing the spill. The start time of the SSO was assumed to have started around 09:30 on 4/1/2024.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		60	The spill required cleanup of the street, curb and gutter near Vista Verde Dr and Cuesta Dr. In addition, it was assumed that raw sewage reached Ruby Creek. Based on the responding Crew's visual observations, there was no adverse impact to the environment or wildlife at the time of the spill. The City of San Jose Environment Department conducted a creek walk to assess the impact to the waterway on 4/3/2024. The result of the creek walk also showed no impact to the creek or wildlife. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Upon arrival, the responding City Crew immediately placed sandbags around the nearby storm drain inlets where the spill had entered. The Crew tracked the spill in the storm drain conveyance system (MS4). It was assumed that that the spill discharged out from a storm drain outfall into Ruby Creek. Once the blockage was cleared and the spill stopped, the Crew began their cleanup efforts. At the spill source point, a Crew flushed sewage from the asphalt and curb to the nearby storm drain inlet. Water was used from a nearby hydrant and Vacuum truck to clean all of the spill on land. A second Vacuum truck was positioned at the affected inlet to recover the spill on land and induced water. All of the spill that reached the separate storm drain system was assumed to have been lost to the waterway due to the recent rain on 3/29/2024 and 3/30/2024. Rain from the previous days had introduced stormwater into the MS4 that continued to flow in the system on 4/1/2024 during the spill event.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		The City has planned the following corrective actions for this sanitary sewer overflow:  1. Adjust the plugged pipe segment operation and maintenance cleaning frequency from 1 years to 6 months. 2. Re-video the plugged sanitary pipe segment along with the upstream and downstream segments in 6 months prior to cleaning. 3. Request Public Works rehabilitation project to address mainline pipe sags which likely contributed to grease/debris settling in the pipes. 4. Distribute grease (FOG) outreach flyers to nearby residents.	The City has scheduled following corrective actions for this sanitary sewer overflow:  1. Adjust the plugged pipe segment operation and maintenance cleaning frequency from 1 years to 6 months - completed on 4/10/2024 2. Re-video the plugged sanitary pipe segment along with the upstream and downstream segments in 6 months prior to cleaning. - scheduled for 10/7/2024 3. Request Public Works rehabilitation project to address mainline pipe sags which likely contributed to grease/debris settling in the pipes. - - scheduled to discuss rehab project with City Department of Public Works on 5/21/2024 4. Distribute grease (FOG) outreach flyers to nearby residents. - scheduled for May 2024	04/01/2024 13:15	While the Responding Crew cleared the blockage in the plugged sanitary mainline, the Crew documented their findings. A pipe basket was used to collect grease, rags, and debris.  After conducting a follow up CCTV of the sanitary mainline pipe, there was evidence of severe grease deposits that were present in the mainline pipe where the blockage was located. Other than that, there were no other major O&M observations or structural defects that may have contributed to the blockage. Therefore, it was determined that the cause was grease (FOG).	N			Ruby Creek	Stream/Creek		Ruby Creek is a 4.7-mile-long northwest-flowing stream currently originating just north of Lake Cunningham in Evergreen Valley in southeast San Jose, California. It is tributary to Lower Silver Creek when then flows into Coyote Creek, whose waters flow to the south end of the San Francisco Bay. Ruby Creek is not intended for recreational usage or drinking water.	During the spill response, there was no adverse impact to the environment or wildlife observed. The following Wednesday, 4/3/2024, an inspector from the City of San Jose Environment Services Department conducted a follow up storm drain outfall inspection. There was no adverse impact to the environment or wildlife observed during the follow up inspection.	Other (specify below)	No public access impact - Ruby Creek is not intended for recreational usage.	Santa Clara Valley Water District	0	N	N												
5F	5SSO10773	Active	University Of California, Merced CS	UC Merced	894290	1.1	Certified	Cesar Ramirez	Environmental Programs Manager		26-APR-24	26-APR-24	Monthly Category 3 Spill	UCM ACS Basement	03/04/2024 12:03	03/04/2024 12:03	03/04/2024 11:45				A clogged sewage line caused toilet in the basement to overflow whenever toilets in the 1st, 2nd, and 3rd floor were flushed. Overflow spread onto the corridor of the building. The clogged sewage line resulted in spill/overflow from two different manholes located on the outdoor area, East, of the ACS building. 	37.364042	-120.42383	Inside Building or Structure; Manhole			135	Clogged sewer line that backed up, causing a toilet in the female�s restroom in the basement of the Arts and Computation Sciences (ACS) building to overflow. The spill reached corridors inside the building. Additionally, the clogged line resulted in sewage overflow that came out of two separate manholes east of the ACS building. 	Y	Approximately 18 gallons of sanitary sewer overflow made its way into the storm drain that is located outside of the ACS building. Although only a small amount of overflow made its way into the storm drain, the vacuum extractor removed about 18 gallons of sanitary overflow from the drains. 	18				135	Building or Structure; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		The sanitary sewer overflow took place inside the ACS building, and in two manholes outside of the ACS building. However, the overflow that made its way into the storm drain was all collected via a third party contractor (Service Master). Storm drain system was cleaned via vacuum/hydro jetting by a separate third party contractor, Applegate Teeples. 	Y	37.364144	-120.423231	37.364003	-120.423174					03/04/2024 14:00	For spill cleanup that was conducted on the inside and outside of the building, the third party contractor (Service Master), collected and vacuumed a total of 135 gallons of sanitary sewer overflow. 	Relied on data gathered by Service Master. Service Master collected the spill and gave an estimate amount based on the equipment storage capacity. 	Debris-wipes/Non-disposables		Lower Lateral		Concrete		5	Although the spill had indoor and outdoor appearance points, the spill was completely cleaned up and areas sanitized by a third party contractor. Additionally, since the spill was properly cleaned up, there was no environmental impact associated with this spill. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below)		Upon discovery of the spill, the building manager and the Operations and Maintenance team closed off the restrooms to stop the toilet overflow. Coordination with vendor/third party contractor took place to ensure the line was cleared/unclogged within a 2 hour time period. Third party contractor (Service Master) was dispatched to have the black water cleaned up and areas sanitized. Additionally, the Operations and Maintenance team ensured to place a sorbent sock around the storm drains to prevent spill from going into the storm drains. Some of the sanitary sewer spill made its way into the storm drain that is located outside of the ACS building, but Applegate Teeples hydro jetted the storm drain and captured the rinsate. 	Adjusted Schedule/Method of Preventive Maintenance		Frequency of pipe flushing/jetting has increased, along with an increased frequency of inspections at sanitary sewer manholes across campus. In the future, Operations and Maintenance team may implement a more frequent sanitary sewer line flushing to minimize or prevent spills. 		03/04/2024 21:30	Overflow from the toilet in the basement of the ACS building was observed, which prompted the shut down of the restrooms in the building. Manholes on the east side of the ACS building also spilled sewage, since they were associated with the same sewer line as the toilet. Investigation conducted by the Operations and Maintenance team and Applegate Teeples indicated that the spill was caused by a clogged sewer line that ran through through the southwest side of the ACS building. It was determined that the clog was caused by non-flushable/non-disposable wipes that had been flushed down the toilets. The pipe/line was flushed by the third party contractor, which fixed the the issue. 		NA - spill is no longer being investigated. 	03/04/2024 16:00														NA - No environmental impacts associated with this spill 	NA - System is in good condition. Cause of spill due to the flushing non-flushable wipes down the toilet. 	Frequency of pipe flushing/jetting has increased, along with an increased frequency of inspections at sanitary sewer manholes across campus. 	NA - System is in good condition and approximately 5-years old. 	Pipe was inspected during spill investigation. No repairs or replacements took place due to piping system being in good condition, and spill due to clogged sanitary sewer pipe.  	NA - System is in good condition and approximately 5-years old. 	NA - System is in good condition. No system modifications were planned or required. 	Spills that cannot be handled in-house will need to be cleaned up by qualified third party contractors. 	NA - spill is no longer being investigated. 	
3	3SSO18097	Active	Pajaro County Sanitation District Collection System	Pajaro County Sanitation District	894292	1.1	Certified	Tom Moss	Senior Water Resources Hydrologist		03-APR-24	03-APR-24	Monthly Category 3 Spill	Las Lomas Drive, 200 feet north of Overpass Road	03/31/2024 16:29	03/31/2024 17:15	03/31/2024 16:20				The spill originated from a manhole located on Las Lomas Drive approximately 200 feet north of the intersection with Overpass Road.  Wastewater spilled out through the 1-inch hole on top of the manhole cover.	36.8734	-121.73544	Manhole			972	Wastewater spilled from the manhole and flowed south on the eastern side of Las Lomas Drive.  Wastewater is believed to have travelled south of Overpass Road.  	N						5	Paved Surface; Unpaved Surface		Wastewater spilled from the manhole and flowed south on the eastern side of Las Lomas Drive.  Wastewater is believed to have travelled south of Overpass Road.  	N									03/31/2024 22:20	The spill rate (162 gal/hr) was estimated using the gallon board for gpm from a 1-inch diameter hole.  The estimated spill rate was multiplied by the spill duration (6 hr) to estimate the spill volume. 	The spill start time was estimated based on the time the County was first notified of the spill and the extent of the spill when County of Monterey Public Works staff arrived on site.  The spill end time was based on field observations from Public Works staff.	Debris-Rags; Root Intrusion		Manhole		Polyvinyl Chloride (PVC)		45	There are no known impacts.	N	Cleaned Up (specify below); Contained All or Portion of Spill		A vacuum truck was used to contain and limit the spill.  Roots and rags in the manhole were removed, and the sewer line was jetted to removed any remaining obstructions to flow.  The vacuum truck was used to remove water around the manhole, and water/bleach was used to clean the paved and unpaved surfaces.	Repaired Facilities or Replaced Defect		The root damage to the manhole will be investigated to determine if additional repairs are needed.		03/31/2024 23:30	The spill was caused by root intrusion into the manhole combined with the accumulation of rags that prevented wastewater from flowing in the sewer line.		Public Works staff will conduct further investigation of the root damage to the manhole.  If additional repairs are needed, this manhole will be included in future Pajaro CSD capital improvements.	03/31/2024 23:30														N/A	Dirt from the adjacent hillside had covered the manhole, and the last inspection date is unknown.  This manhole will be added to the GIS map for the Pajaro CSD and included in future system inspections.		The manhole will be inspected in more detail to determine if additional repairs are needed.  	The manhole was buried at the time of the spill.  The material on top of the manhole was removed.  The roots and rags in the manhole were removed and the sewer line was cleaned.	The manhole will be inspected in more detail to determine if additional repairs are needed.  		The County is investigating options to purchase equipment to improve response time and effectiveness.  	Public Works staff will conduct further investigation of the root damage to the manhole.  If additional repairs are needed, this manhole will be included in future Pajaro CSD capital improvements.	
3	3SSO10334	Active	Seaside Co Sd CS	Seaside CSD	894293	1.3	Certified	Nisha Patel	District Engineer		08-APR-24	08-APR-24	Monthly Category 3 Spill	1565 Lowell	03/24/2024 13:02	03/24/2024 13:22	03/24/2024 12:30				The spill had one origin point, from the clean out at 1565 Lowell. 36.608400, -121.836675	36.6084	-121.836675	Lateral Clean Out (Private)			200	The spill went to unpaved land immediately around the cleanout, on the side of the residence.	N						200	Unpaved Surface		The spill went to the unpaved surface immediately around the clean out. 	Y	36.6084	-121.836675							03/24/2024 13:50	Spill volume was estimated by amount recovered and eye ball method	Measured volume recovered by vactor truck	Debris from Construction		Gravity Mainline		Vitrified Clay		70	Spill to land. No property damage. Area cleaned and disinfected.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Crew cleared the blockage, contained spill and returned to sewer, cleaned and disinfected the area.	Inspected Sewer Using CCTV to Determine Cause		Line was CCTV'd. Blockage removed, Line reinspected and no damage found.		03/24/2024 14:30	CCTV'd mainline, and found it to be full of water. Removed blockage from mainline, reinspected with CCTV and observed pipe to be in good condition. Blockage was due to a large piece of asphalt from nearby construction entering the sewer system.		None	03/26/2024 15:30														None	None Required	None Required	None required	None Required. Removed construction debris from main line. Pipe in good condition.	None	None Required	None Required	None	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	894295	1.2	Certified	John J. Hough	San Dist. Superintendent	03-APR-24	16-APR-24	16-APR-24	Category 2 Spill	341108	04/01/2024 17:59	04/01/2024 18:29	04/01/2024 10:00	04/01/2024 20:15	24-1953		See Attached Spill Map with Photos.	38.524	-121.4445	Lateral Clean Out (Public)			1118	See Attached Spill Map with Photos	Y	See Attached Spill Map with Photos.	1067	0			1118	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		See Attached Spill Map with Photos.	Y	38.524	-121.4445	38.5249	-121.444	38.525	-121.4404			04/01/2024 20:45	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		73	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	Notified Sacramento County Water Resources Drainage O&M via Sacramento County 311 and the City of Sacramento.	See Attached Description of Spill Event.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected the mainline with CCTV on April 2, 2024. Based on findings, SacSewer adjusted the preventative maintenance frequency from 48-month to 24-month.	SacSewer adjusted the preventative maintenance schedule on April, 3 2024.	04/03/2024 03:20	See Attached Description of Spill Event.	N												N													
4	4SSO11423	Active	Long Beach Water Dept. CS (SSO program)	Long Beach City, Water Dept	894300	1.3	Certified	Jennifer Rojas	Senior Director 	05-APR-24	16-APR-24	16-APR-24	Category 1 Spill	5437 E. Ocean Blvd Long Beach CA.	04/02/2024 17:54	04/02/2024 18:20	04/02/2024 17:40	04/02/2024 22:20	24-1977		The spill originated from the city sewer manholes, Q04-SMH-065 and Q04-SMH-011. The spill left the system and entered the sidewalk and street curb and gutter with approximately 298 gallons contained on the street.  Additionally 2 gallons entered the conveyance system where it was contained.  The remaining 208 gallons entered the Bayshore Beach.	33.75326	-118.1307	Manhole		Sewage emerged from an additional manhole on the south side of Ocean Blvd. It ran down the street curb and gutter, eventually reaching a Long Beach catch basin.	508	2 Appearance points: 1. Sewage overflowed from the city sewer manhole and traveled down the side sidewalk into Bayshore Beach. 2. Sewage overflowed from the city sewer manhole onto the street curb and gutter, eventually leading to a Long Beach storm drain catch basin, which was contained and fully recovered by Ocean Blue. 	Y	The sewer overflowed into the street curb and gutter, eventually reaching a City of Long Beach catch basin. Two gallons of sewage settled at the bottom of the catch basin, however, it did not enter the storm drain. The sewage was successfully recovered.	2	0	The photographs provide a visual representation of the incident. In the images, sewage can be seen escaping from a manhole. The liquid waste travels along the curb and gutter, following the path of least resistance. It eventually reaches the sand and flows directly into the bay.	208	300	Drainage Conveyance System; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		This event consisted of one blockage, which resulted in a sewer spill at two locations of appearance. At spill appearance point 1, the spill left the system and entered the street curb and gutter, with approximately 298 gallons contained on the street. Two gallons entered the conveyance system located on Ocean Blvd, and all 300 gallons were recovered by Ocean Blue Environmental. The remaining 208 gallons traveled down the sidewalk and entered the Bayshore beach.	Y	33.75324	-118.13089							04/02/2024 19:00	Upon arrival, sewage was actively overflowing from City Sewer Manhole Q04-SMH-065 at a rate of approximately 2.7 gallons per minute (GPM). The total spill volume was calculated by multiplying the flow rate by the overflow duration, resulting in 2.7 GPM x 80 minutes = 216 gallons.  The affected areas on the curb, street, gutter, and sidewalk were estimated using the formula for volume: Length x Width x Depth.  For the first location, the dimensions were 245 ft x 1 ft x 0.0625 ft, resulting in a volume of 15.31 cubic feet or approximately 114.53 gallons. For the second location, with dimensions of 35 ft x 0.5 ft x 0.0208 ft, the volume was approximately 0.36 cubic feet or 2.72 gallons. The last area, near the LACFCD, measured 14 ft x 80 ft x 0.0208 ft, with a volume of 23.3 cubic feet or 174.25 gallons.  The total spill volume across all areas was approximately 508 gallons.	Todd, an employee at the Marine Berean, contacted the Long Beach Utilities Department the moment he noticed the spill and noted the time.	Debris-General		Gravity Mainline		Vitrified Clay		94	Approximately 298 gallons of sewage spilled onto the street, posing a health risk to pedestrians and potentially contaminating the environment if not properly addressed. Ocean Blue conducted a clean-up and successfully recovered the spill. Two gallons entered the conveyance system on Ocean Blvd but were also contained and recovered. Despite these efforts, 208 gallons entered Bayshore Beach, possibly impacting marine life and water quality. In total, 300 gallons were accounted for and recovered.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		1. Spill Containment:     - At spill appearance point 1, where approximately 298 gallons of sewage spilled onto the street, containment measures were implemented to prevent further spread. Barriers were deployed to contain the spill within the affected area.     - For the 2 gallons that entered the conveyance system on Ocean Blvd, containment measures were also implemented. 2. Cleanup Efforts:     - Ocean Blue Environmental immediately initiated cleanup operations for the spill on the street. The 298 gallons of sewage were promptly cleaned up using pressure washers and a vacuum truck.     - Cleanup activities were conducted to address the two gallons of sewage that entered the conveyance system. Ocean Blue Environmental used a vacuum truck to flush the system and remove both sewage and nuisance water.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	A SmartCover will be installed at this location to monitor and prevent future spills, given its proximity to the bay.	1. The mainline segment was thoroughly hydro-jetted. 2. The preventive maintenance schedule was adjusted. The mainline segment has been added to our hot spot list for more frequent cleaning. 3. A Smart Cover Electronic Device will be installed under a City Sewer Manhole. This device monitors water flow and sends an alarm to LBUD when significant changes occur, serving as a warning of an impending spill.  We commit to maintaining proper cleaning practices by our staff.	The significant milestone for the corrective action includes the pipeline CCTV Inspections, completed on 4/3/2024. The pipeline inspection aims to evaluate the sewer system's condition and identify any potential problems or blockages.  We have arranged with All American Asphalt to install a new ring and cover. This will enable SmartCover to install their device on the lid. The work is anticipated to be completed by the start of July.	04/02/2024 21:45	A CCTV investigation into the spill's cause revealed a heavy presence of sand in the system. This unusual sand accumulation significantly contributed to the blockage that resulted in the spill. It is speculated that it may have entered the system through manhole vent holes from stormwater runoff and a LACFCD stormwater pump station that could bring sand in with the clearwater.	N			Bayshore Beach	Ocean		Bayshore Beach is located on the south western shore of Alamitos Bay, near the Belmont Shore, Naples, and Peninsula neighborhoods of Long Beach. Bay Shore is separated from the open ocean by the Alamitos Peninsula, ensuring calm, tranquil waters year-round, ideal for swimming and all types of water-based recreation. Bay Shore is a popular summer destination spot for families and people looking to stay active while enjoying the Southern California sun, as it offers a wide range of activities and recreational amenities for all ages.	No visual impact on aquatic life was noted during the investigation and assessment of the sewer spill.	Temporary Restricted Use	The access point for launching non-motorized recreational equipment was blocked due to clean-up efforts.	Long Beach Environmental Health Department.	0	N	N												
8	8SSO10602	Active	Santa Ana City CS	Santa Ana City	894301	1.1	Certified	Armando Fernandez	Principal Civil Engineer		05-APR-24	05-APR-24	Monthly Category 3 Spill	Intersection of Russell and Magnolia MH# K08-021	04/01/2024 21:27	04/02/2024 12:13	04/01/2024 21:20				Spill originated at manhole K08-021 at the intersection of Russell and Magnolia in the City of Santa Ana. It was a single point spill.	33.73266	-117.88405	Manhole			120	Spill originated at manhole K08-021. The spill extended from the cross gutter score line at the intersection of Russell and Magnolia to 1242 South Magnolia along the gutter.  	N						120	Paved Surface; Street/Curb and Gutter (2 3)		The spill was contained within the gutter between Russell and Magnolia, and a berm created at 1242 South Magnolia.	Y	33.73266	-117.88406	33.73116	-117.88409					04/02/2024 12:20	We calculated to volume by taking the length of the spill and multiplied it by the cross-section of the gutter and then converted it to gallons.	Based on the spill volume and the time we received the call. We are currently attempting to get a hold of the person that left the voice mail.	Fats, Oil and Grease (FOG); Root Intrusion		Manhole		Vitrified Clay		75	We were able to recover all of the spill therefore there was no impact.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	We hosed the pavement and vacuum the spill. We informed OCHCA about the spill.	A berm was created to contain the spill and prevent it from reaching the storm drain. Flow was restored by breaking the plug and cleaning the sewer main. The pavement was hosed and all the water was vacuumed with a vactor truck at the berm location.	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause		City will CCTV sewer main to determine to identify FOG source and will provide educational materials to residents. 		04/02/2024 14:00	After breaking the plug we jetted the sewer main and saw roots and grease come from the plug location.		Source of FOG.	04/12/2024 12:00														Non appliable.	Cleaning the sewer mains more frequently and CCTV to identify the severity of the root intrusion. If severe we will add it to our root foaming program.	cleaning Schedule will be modified to clean once a year instead of every 18 months.	We do not have any rehabilitation or replacement plan at this time.	We will add it to our root foaming program.	No capital Improvements are identified for this main at this time.	We make changes in our asset management system.	We have talked to our dispatch section to make sure we review voicemail first thing in the morning and let our crews know of any spills as soon as possible.	Source of FOG.	
2	2SSO10110	Active	Los Altos City CS	Los Altos City	894311	1.1	Certified	Grant Gabler	Maintenance Superintendent		19-APR-24	19-APR-24	Monthly Category 3 Spill	1232 Golden Way	03/09/2024 13:18	03/09/2024 13:29	03/09/2024 11:00				Property line clean out in front yard of 1232 Golden Way, Los Altos, CA.  Backup in home later reported. 	37.36078	-122.09128	Inside Building or Structure; Lateral Clean Out (Private)	NA	NA	55	Initial appearance point at property line clean out at 1232 Golden Way, Los Altos, CA.  Spill affected dirt landscape around clean out that measured 8' x 20' at approximately 50% affected.  The spill reached the unpaved gutter at street and traveled 219' before being contained.  Several days after spill event resident at 1232 Golden Way called to report backup into the home affecting 3 bathrooms, 2 hallways and the garage.  	N	NA					34	Building or Structure; Paved Surface; Street/Curb and Gutter (2 3)	NA	Initial appearance point at property line clean out at 1232 Golden Way, Los Altos, CA.  Spill affected dirt landscape around clean out that measured 8' x 20' at approximately 50% affected.  The spill reached the unpaved gutter at street and traveled 219' before being contained.  Several days after spill event resident at 1232 Golden Way called to report backup into the home affecting 3 bathrooms, 2 hallways and the garage.  	Y	37.36137	-122.09123	37.3609	-122.09142					03/09/2024 13:27	Measured volume worksheet - measurements taken outside home at time of spill.  Measurements of backup inside home estimated as cleanup was completed before contact with city.	Spill start time was determined by witness 1 (11:00 am 3/9/24).  Spill end time determined by crew clearing blockage (1:37 pm 3/9/24).	Fats, Oil and Grease (FOG)	NA	Gravity Mainline	NA	Vitrified Clay	NA	70	8' x 20' dirt landscape area around property line clean out at 1232 Golden Way - 50% affected.  Spill ran down unpaved street gutter 219'.  Later report of backup inside home affecting 3 bathrooms, 2 hallways and the garage. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	NA	Spill contained in dirt landscape around property line clean out.  Spill ran down unpaved gutter at street.  Drain inlet blocked with absorbent. Area washed and vacuumed.  Dirt landscape raked and sprayed with enzymes.  Spill inside residence cleaned by resident before notifying city.  	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause	NA	Moved flushing schedule from our 90 day flushing program to our 60 day flushing program. 		03/09/2024 14:30	Segment was televised to determine the cause.  Cause of the spill was grease in the line.		Investigation complete	04/05/2024 16:00														NA	Moved flushing schedule from our 90 day flushing program to our 60 day flushing program. 	Moved flushing schedule from our 90 day flushing program to our 60 day flushing program. 	None planned at this time 	CCTV Inspection completed.  No repairs planned at this time. 	None planned at this time 	See attached 60 day flushing program list	None planned at this time 	Investigation complete	
2	2SSO10184	Active	San Rafael SD CS	San Rafael Sanitation District	894323	1.3	Certified	Doris Toy	District Manager		02-MAY-24	02-MAY-24	Monthly Category 3 Spill	411 4th St.	04/03/2024 12:43	04/03/2024 12:50	04/03/2024 11:30				Spill came out of two private clean outs one at 411 4th St and the other at 416 4th St	37.971777	-122.517958	Lateral Clean Out (Private)	The location of the second appearance point is 416 4th St clean out  37.971981, -122.518203		57	After leaving lateral clean outs spill went down gutter and ended in catch basins. Due to construction work catch basins had barriers to protect catch basins. Spill was contained in catch basins.  	Y	Storm system catch basin. Spill was contained and didn't go past  catch basin due top protection barriers and debris in catch basins.   	57				57	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Two storm system catch basins. One on the north east corner of 4th St and the other on the south east side of 4th St.  	Y	37.972	-122.51855	37.97186	-122.5186					04/03/2024 13:23	Spill was calculated using up stream lateral connections and also by using pondage area.  Spill volume for  pondage came out to 51 gallons. 	Start time was determined by talking to plumber. End time was determined by when we relived the blockage and there was noting coming out of lateral cleanouts. 	Debris from Construction		Manhole		Vitrified Clay		50	No impact. Checked out down stream line and catch basin and there was no impact. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Crew uncovered buried manhole due to construction. Once manhole was uncovered they relieved blockage with hydro truck. After line was flowing and spill ended crews washed down and  disinfected sidewalk, gutter pan, and catch basin. Suck up all spill and water with hydro and returned to sewer system. 	Other (specify below)	Sent email to public works	Improve communication with public works and contractors regarding when they will be covering District's manholes. Contractors need to ensure manhole barrel or vault needs to be completely covered prior to backfill and temporary paving.  Have an emergency contact list available. 		04/03/2024 14:38	The City of San Rafael�s contractor was preparing the roadway for resurfacing.  They removed all manhole lids and castings from the barrel.  At this location the manhole barrel is a square vault and the contractor used a circular metal plate that did not entirely cover the square opening.  When the contractor backfilled over the plate, rock fell in to the trough and created a blockage causing the sewer main to backup.  We were not notified of this resurfacing project or that our structures were paved over and were not given emergency contact information for the contractor conducting roadway construction.		None	04/03/2024 14:38														none	N/A  San Rafael Public Works contractor when covering manhole use a round lid to cover up a square hole. Rock from back fill fell into manhole and blocked flow and caused line to back up. There is nothing the District could have done to prevent this..	N/A	N/A	N/A	N/A	N/A	None	None	
5F	5SSO10771	Active	Tuolumne Utilities District CS	Tuolumne Utilities District	894330	1.2	Certified	Aidan Whitmer	Collections Foreman	08-APR-24	19-APR-24	19-APR-24	Category 1 Spill	Lyons Street/ Short Lane Intersection MH#804	04/07/2024 09:23	04/07/2024 09:52	04/07/2024 08:38	04/07/2024 12:12	24-2056		Spill appearance point is the manhole in the intersection of Lyons Street and Short Lane. Photos of appearance point are attached. 	37.98649	-120.38006	Gravity Mainline; Manhole	N/A	None.	832	Spill started at the manhole in the southbound lane of Lyons Street where it intersects with Short Lane. The spill ran along the western edge of the road through drainage channels and storm drains for 619' until it reached Barretta Street where it went into another storm drain, went down Barretta Street for 219' and entered the creek at the Barretta Street Bridge. 	Y	The drainage conveyance system that carried the sewer from the spill appearance point to Sonora Creek is made up of sections of culvert pipe storm drain as well as open asphalt channels along the side of the road. The sewer eventually made it to the creek at the Barretta Street bridge through an 8  storm drain line. Photos are attached.	15	817	The sewer spill discharge point is located at the Barretta Street bridge. there is an 8  storm drain stubbed out beneath the bridge that carried the sewer directly into Sonora Creek. Photos are attached.	817	15	Drainage Conveyance System that discharges to surface water	N/A	The spill started at the intersection of Short lane and Lyons street. The sewer ran down the western shoulder of Lyons street to the intersection of Lyons and Barretta, then turned into a culvert pipe and ran down Barretta Street to Sonora Creek at the Barretta Street bridge. Coordinates 1.d and 1.e are the spill origination point. Coordinates 1.f and 1.g are where the spill entered Sonora Creek.	Y	37.98647	-120.38004	37.98453	-120.38079					04/07/2024 10:20	Spill volumes were calculated using the Orange County Spill Estimation Guide's  Pick and Vent Hole Estimation Chart . We measured two 3/4  pick holes both with 4  plumes of sewer coming out. The estimation chart shows this to be an estimated 8.16 GPM. We believe the spill to have ran for 102 minutes based on talks with the customers and residents in the area. This would lead to our 832.32 gallon spill.	Spill start time was estimated by talking to customers in the area. One man said he was loading up his car about 20' away from the spill point around 0835 and everything was fine. I decided to put down 0838 as this is the last time the manhole had been seen not spilling. Also, this spill is in a busy part of town and in a very visible spot. I believe this spill would have been noticed and reported very quickly. We know the spill ended at exactly 1020 because we unplugged the line and watched the spill end.	Debris-General	N/A	Manhole	N/A	Cast Iron	N/A	40	The spill did not appear to impact any wildlife or vegetation. There was no visual evidence of sewer or any contamination in or around the creek although we know it did reach the creek.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	Upon arrival, crews immediately started working to contain the spill with a vacuum truck. The vacuum truck had a mechanical failure (improperly sealed tank) and wasn't able to do the job, so crews moved on to unplug the blocked line as quickly as possible with the hydro jetter truck. Once the spill had been stopped, the vacuum truck tank was resealed, and all possible sewer was collected from drains. Crews disinfected the entire spill area and cleaned it with brooms and water from the hydro jetter. All storm drains were flushed and cleaned with water and disinfectant. All water used for cleanup was collected with the vacuum truck.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause	N/A	I believe this was a fluke occurrence because the condition of both the manhole and the line seem to be in good shape but we will be opening and visually inspecting this manhole quarterly from now on to prevent any future SSO's..	This manhole will be inspected again in July, then October, then January, and so on. 	04/07/2024 12:15	The line has been TV'd. We found no pipe or manhole defects that could have caused the spill, leading me to believe debris came down from upstream and got stuck in the channel of the manhole. 	N	N/A		Don Pedro Reservoir	Reservoir	N/A	Don Pedro Reservoir is a large reservoir holding around 2,030,000 acre feet of water.	There have been no impacts on aquatic life or vegetation.	Restricted Public Access	Warning signs were put up at Sonora creek access points for a few miles downstream of the spill point notifying the public of contamination. There were no hard closures or restrictions. 	None.	0	N	Y	Upstream sample was taken from the East Dodge Lane bridge, The spill site sample was taken from the Barretta Street Bridge, and the below sample was taken from the South Shepherd Street Bridge.	Water quality samples were analyzed for: Total Coliforms, E. Coli, and Fecal Coliform.									N/A	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	894335	1.3	Certified	Gerald Watson	Sanitation Wastewater Manager III	11-APR-24	11-APR-24	11-APR-24	Category 1 Spill	1986 North Coldwater Canyon Road      	04/04/2024 15:45	04/04/2024 17:05	04/04/2024 15:45	04/04/2024 19:19	24-0225		Sanitary Sewer Overflow.	34.107777	-118.405506	Manhole		None.	448	Sanitary Sewer Overflow.	Y	County of Los Angeles owned catch basin at Coldwater Canyon Drive and Arrowood Drive, which is tributary to Ballona Creek. 	0	448	Sanitary Sewer Overflow.	448	0	Other (specify below)	The entire back-up amount entered an adjacent County of Los Angeles owned catch basin at Coldwater Canyon Drive and Arrowood Drive, which is tributary to Ballona Creek. 	34.107777   -118.405506	Y	34.107777	-118.405506							04/04/2024 17:15	Spill flowrate and volume determination based on flowout pickhole or opening 	Spill flowrate and volume determination based on flowout pickhole or opening Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening6inches Flowrate per pickole/opening (gpm)5gpm # of pickholes/openings1 Total flowrate (gpm)5gpm Duration of spill (minutes)90minutes Total flow (gallons)448gallons 	Root Intrusion		Gravity Mainline		Vitrified Clay		94	Approximately 448 gallons of sewage backed out of the sewer as a result of the blockage.  The entire back up amount entered an adjacent County of Los Angeles owned catch basin at Coldwater Canyon Drive and Arrowood Drive, which is tributary to Ballona Creek.	N	Restored Flow		On Thursday, April 4, 2024, at 3:46 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1986 North Coldwater Canyon Drive (TG 592-F3). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 5:15 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.    Approximately 448 gallons of sewage backed out of the sewer as a result of the blockage.  The entire back up amount entered an adjacent County of Los Angeles owned catch basin at Coldwater Canyon Drive and Arrowood Drive, which is tributary to Ballona Creek. 	Adjusted Schedule/Method of Preventive Maintenance		As part of our quality assurance program, the sewer line servicing the incident location was inspected using Closed Circuit Television (CCTV).  The post- overflow CCTV inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	As part of our quality assurance program, the sewer line servicing the incident location was inspected using Closed Circuit Television (CCTV).  The post- overflow CCTV inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	04/04/2024 17:15	On Thursday, April 4, 2024, at 3:46 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1986 North Coldwater Canyon Drive (TG 592-F3). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 5:15 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.    Approximately 448 gallons of sewage backed out of the sewer as a result of the blockage.  The entire back up amount entered an adjacent County of Los Angeles owned catch basin at Coldwater Canyon Drive and Arrowood Drive, which is tributary to Ballona Creek. 	N	On Thursday, April 4, 2024, at 3:46 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1986 North Coldwater Canyon Drive (TG 592-F3). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 5:15 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.    Approximately 448 gallons of sewage backed out of the sewer as a result of the blockage.  The entire back up amount entered an adjacent County of Los Angeles owned catch basin at Coldwater Canyon Drive and Arrowood Drive, which is tributary to Ballona Creek. 	04/04/2024 17:15	Ballona Creek	Other (specify below)	Ballona Creek	Ballona Creek	None At The Time.	Other (specify below)	Approximately 448 gallons of sewage backed out of the sewer as a result of the blockage.  The entire back up amount entered an adjacent County of Los Angeles owned catch basin at Coldwater Canyon Drive and Arrowood Drive, which is tributary to Ballona Creek.	Beaches and Harbor	0	N	Y	1980 Coldwater 	Total Coliform 7.00E+06 MPN/100ml E. Coli 2.70E+06 MPN/100ml Enterococcus 2.80E+06 MPN/100ml									On Thursday, April 4, 2024, at 3:46 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1986 North Coldwater Canyon Drive (TG 592-F3). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 5:15 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.    Approximately 448 gallons of sewage backed out of the sewer as a result of the blockage.  The entire back up amount entered an adjacent County of Los Angeles owned catch basin at Coldwater Canyon Drive and Arrowood Drive, which is tributary to Ballona Creek. 	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	894337	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		17-APR-24	17-APR-24	Monthly Category 3 Spill	15675 West Roxford Street	04/05/2024 08:32	04/05/2024 09:08	04/05/2024 08:32				The initial crew arrived at 9:08 A.M. and discovered an 10-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.309608	-118.4737	Manhole			152	Sanitary Sewer Overflow. Photographs attached	N						152	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	34.309608 -118.4737	Y	34.309608	-118.4737							04/05/2024 09:25	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.	DIAMETER OF PICKHOLE OR OPENING0.75INCHES HEIGHT OF WATER OUT OF PICKHOLE/OPENING2INCHES FLOWRATE PER PICKOLE/OPENING (GPM)3GPM # OF PICKHOLES/OPENINGS1 TOTAL FLOWRATE (GPM)3GPM DURATION OF SPILL (MINUTES)53MINUTES TOTAL FLOW (GALLONS)152GALLONS	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		73	It was estimated that approximately 152 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently returned the entire amount to the sanitary sewer system. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		On Friday, April 5, 2024, at 8:32 AM., the Clean Water Conveyance Division (CWCD) received a report of maintenance hole overflowing at 15675 West Roxford Street (TG 481-G4). A CWCD crew was immediately dispatched to the incident location and determined that the 10-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 9:25 AM. The cause of the blockage was attributed to Fats, Oil and Grease (FOG).  All necessary clean-up was then performed.  It was estimated that approximately 152 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently returned the entire amount to the sanitary sewer system.  	Inspected Sewer Using CCTV to Determine Cause		On Friday, April 5, 2024, at 8:32 AM., the Clean Water Conveyance Division (CWCD) received a report of maintenance hole overflowing at 15675 West Roxford Street (TG 481-G4). A CWCD crew was immediately dispatched to the incident location and determined that the 10-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 9:25 AM. The cause of the blockage was attributed to Fats, Oil and Grease (FOG).  All necessary clean-up was then performed.  It was estimated that approximately 152 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently returned the entire amount to the sanitary sewer system.  		04/05/2024 09:25	On Friday, April 5, 2024, at 8:32 AM., the Clean Water Conveyance Division (CWCD) received a report of maintenance hole overflowing at 15675 West Roxford Street (TG 481-G4). A CWCD crew was immediately dispatched to the incident location and determined that the 10-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 9:25 AM. The cause of the blockage was attributed to Fats, Oil and Grease (FOG).  All necessary clean-up was then performed.  It was estimated that approximately 152 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently returned the entire amount to the sanitary sewer system.  		None at this time	04/05/2024 09:25														None at this time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The Closed Circuit Television inspection revealed a minor fracture, which does not necessitate any repairs at this time.  In an effort to prevent future incidents at this location the sewer will be placed on a semi-annual cleaning schedule. 	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The Closed Circuit Television inspection revealed a minor fracture, which does not necessitate any repairs at this time.  In an effort to prevent future incidents at this location the sewer will be placed on a semi-annual cleaning schedule. 	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The Closed Circuit Television inspection revealed a minor fracture, which does not necessitate any repairs at this time.  In an effort to prevent future incidents at this location the sewer will be placed on a semi-annual cleaning schedule. 	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The Closed Circuit Television inspection revealed a minor fracture, which does not necessitate any repairs at this time.  In an effort to prevent future incidents at this location the sewer will be placed on a semi-annual cleaning schedule. 	Not At This Time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The Closed Circuit Television inspection revealed a minor fracture, which does not necessitate any repairs at this time.  In an effort to prevent future incidents at this location the sewer will be placed on a semi-annual cleaning schedule. 	On Friday, April 5, 2024, at 8:32 AM., the Clean Water Conveyance Division (CWCD) received a report of maintenance hole overflowing at 15675 West Roxford Street (TG 481-G4). A CWCD crew was immediately dispatched to the incident location and determined that the 10-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 9:25 AM. The cause of the blockage was attributed to Fats, Oil and Grease (FOG).  All necessary clean-up was then performed.  It was estimated that approximately 152 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently returned the entire amount to the sanitary sewer system.  	None at this time	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	894341	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		16-APR-24	16-APR-24	Monthly Category 3 Spill	1407 North Tanager Way	04/08/2024 14:08	04/08/2024 14:33	04/08/2024 14:08				The initial crew arrived at 2:33 P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.096937	-118.385229	Manhole			141	Sanitary Sewer Overflow	Y	City of Los Angeles owned catch basin located at 1410 North Tanager Way	121				141	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	34.096937 -118.385229	Y	34.096937	-118.385229							04/08/2024 14:57	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation and dimensional analysis.	SPILL FLOWRATE AND VOLUME DETERMINATION BASED ON FLOWOUT PICKHOLE OR OPENING DIAMETER OF PICKHOLE OR OPENING0.75INCHES HEIGHT OF WATER OUT OF PICKHOLE/OPENING2INCHES FLOWRATE PER PICKOLE/OPENING (GPM)3GPM # OF PICKHOLES/OPENINGS1 TOTAL FLOWRATE (GPM)3GPM DURATION OF SPILL (MINUTES)49MINUTES TOTAL FLOW (GALLONS)141GALLONS	Root Intrusion		Gravity Mainline		Vitrified Clay		64	It was estimated that approximately 141 gallons of sewage backed out of the sewer system as a result of the blockage, of that amount, 121 gallons of sewage entered a City of Los Angeles owned catch basin located at 1410 North Tanager Way. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.  	N	Cleaned Up (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		On Monday, April 8, 2024 at 2:08 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1407 North Tanager Way (TG 592-H5). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The Crew removed the blockage, and the backup ceased at 2:57 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 141 gallons of sewage backed out of the sewer system as a result of the blockage, of that amount, 121 gallons of sewage entered a City of Los Angeles owned catch basin located at 1410 North Tanager Way. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.    	Inspected Sewer Using CCTV to Determine Cause		As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule. 		04/08/2024 14:57	On Monday, April 8, 2024 at 2:08 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1407 North Tanager Way (TG 592-H5). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The Crew removed the blockage, and the backup ceased at 2:57 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 141 gallons of sewage backed out of the sewer system as a result of the blockage, of that amount, 121 gallons of sewage entered a City of Los Angeles owned catch basin located at 1410 North Tanager Way. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   		Not At This Time.	04/08/2024 14:57														None At This time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule. 	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule. 	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule. 	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule. 	None At This Time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post- overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule. 	On Monday, April 8, 2024 at 2:08 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1407 North Tanager Way (TG 592-H5). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The Crew removed the blockage, and the backup ceased at 2:57 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 141 gallons of sewage backed out of the sewer system as a result of the blockage, of that amount, 121 gallons of sewage entered a City of Los Angeles owned catch basin located at 1410 North Tanager Way. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	Not At This Time.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	894347	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	09-APR-24	16-APR-24	16-APR-24	Category 1 Spill	1 Westview Place, Oakland Ca	04/06/2024 15:15	04/06/2024 16:30	04/06/2024 17:00		-		Lateral clean out (private) overflowing in front of the property on paved surface, flowing down on the street gutter area, and finally reaching Temescal creek on the side of the road.	37.85894	-122.23138	Lateral Clean Out (Private)			169	Lateral clean out (private) overflowing in front of the property on paved surface, flowing down on the street gutter area, and finally reaching Temescal creek on the side of the road.	Y	Temescal creek (stream).	0	141	Temescal creek (stream).	141	28	Drainage Conveyance System		Lateral clean out (private) overflowing in front of the property on paved surface, flowing down on the street gutter area, and finally reaching Temescal creek on the side of the road.	Y	37.85894	-122.23138							04/06/2024 17:00	.5  Pick hole x .25  height = .47 GPM .47 GPM x 2 Pick holes = .94 GPM 94 GPM x 180 minutes = 169 Gallons Contained from 4:30 pm to 5:00 pm = 30 Minutes x .47 GPM = 28 Gal. Discharged to creek: 169 gallons - 28 gallons = 141 gallons. 	Start time was based on eyewitness account. End time was based on responding sewer crew restoring the mainline.	Debris from Construction		Gravity Mainline		Vitrified Clay		90	Lateral clean out (private) overflowing in front of the property on paved surface, flowing down on the street gutter area, and finally reaching Temescal creek on the side of the road.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Staff washed down affected area and the street and gutter. Staff recovered portion of the spill in the street and gutter area.	Staff washed down affected area and the street and gutter. Staff recovered portion of the spill in the street and gutter area.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Sewer main was to six-month high frequency program. W. O. 1516547.	Sewer main was to six-month high frequency program. W. O. 1516547.	04/08/2024 11:20	CCTV found heavy construction debris to have been the cause of the blockage in the mainline.	N			Temescal Creek	Stream/Creek		V-Ditch	None.	Other (specify below)	None.	N/A	0	Y	N												
2	2SSO10212	Active	Vallejo Sfcd CS	Vallejo Flood & Wastewater District (formerly Vallejo San & Flood Control District)	894348	1.2	Certified	Justin Keating	Director of Field Operations	09-APR-24	18-APR-24	18-APR-24	Category 1 Spill	309 Concord	04/05/2024 16:47	04/05/2024 17:10	04/05/2024 15:45	04/05/2024 18:54	24-2040		Clean out overflowing at 309 Concord st.	38.1023	-122.21963	Lateral Clean Out (Public)			1070	Overflow came out of cleanout and flowed down into curb, gutter and catch basin.	Y	Catch basin drains into storm drainage ditch.	170	900	Discharge point at district cleanout. 	900	170	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Spill exited sanitary sewer system from public clean out. Impacted sidewalk, street, curb/gutter, storm drain collections system and concrete drainage canal.	Y	38.10214	-122.2203							04/05/2024 17:32	Duration and flow rate. Public clean out was observed by District staff to overflow at a rate of 10 gallons per minute. 10 GPM x 107 Minutes = 1070 Gallons	Interviewed reporting party. The spill was first noticed at 15:45. Reporting party was unsure who to notify. Contacted several different agencies before identifying Vallejo Flood and Wastewater District as the appropriate contact at 16:47. District staff documented spills end time when blockage was cleared in sanitary sewer main.	Root Intrusion		Gravity Mainline		Vitrified Clay		60	Sidewalk, street, curb/gutter, storm drain collection system, concrete drainage canal.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Cleaned sidewalk, street, curb/gutter, and storm drain collection system. Plugged storm drain catch basin, vacuum cleaned storm drain system.	Plugged storm drain catch basin, called in additional staff and equipment, cleared blockage, cleaned sidewalk, street, curb/gutter, and storm drain collection system.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Additional main line leaning to remove root growth.	CCTV inspection, additional after-action mainline cleaning to remove root growth, added to preventative maintenance schedule.	All milestones completed.	04/05/2024 19:30	Roots were identified as cause of spill when blockage was cleared during spill event. Follow up CCTV inspection verified root growth. 	N			Mare Island Strait	River		The strait separates Mare Island and mainland Vallejo at the mouth of the Napa River. 	NA	Other (specify below)	None	Coast Guard	0	N	N												
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	894349	1.2	Certified	Daniel Whitlock	Manager		30-APR-24	30-APR-24	Monthly Category 3 Spill	1762 Oakdale Ave.	04/07/2024 17:45	04/07/2024 18:10	04/07/2024 16:53				Private property buildings affected by spill at 1762 Oakdale Ave. Pictures taken for volume estimate.	37.73643	-122.39332	Other Sewer System Structure; Upper Lateral (Private)			240	Spill contained to side yard 1762 Oakdale ave.	N						0	Paved Surface		Spill came out of the lateral for 1762 Oakdale Ave and settled on pavement in the side yard.	Y	37.73673	122.39393	37.73637	122.39333	37.736	122.39271			04/07/2024 00:45	Volume by area estimation. Had to estimate area through photos due to gate to side yard being locked.	40(length) x 10(width) x 0.8(depth) x 7.48 x 1% wet = 240 gallons	Construction Diversion Failure; Pipe Structural Problem/Failure - Installation	Construction removed sewer pipe	Gravity Mainline; Upper Lateral		Vitrified Clay	VCP	0	Spill contained to sideyard of property. No damage seen or reported.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Property Owner Notified; Restored Flow	By the time we were able to gain access to yard, spill had dissipated. Washed down sideyard and picked up solid debris.	Unable to clean spill since gates were locked. By the time we were able to gain access to yard, spill had dissipated. Crews washed down sideyard and picked up solid debris.	Other (specify below)	N/A	N/A		04/25/2024 13:00	Construction crew removed part of the sewer pipe which then filled up with sand and caused spill out of lateral of 1762 Oakdale Ave.		N/A	04/08/2024 07:43														N/A	N/A	N/A	N/A	N/A	N/A	N/A	Unable to clean spill since homeowners gates were locked. By the time we were able to gain access to yard, spill had dissipated. Crew washed down sideyard and picked up solid debris.	N/A	
2	2SSO10095	Active	Benicia City CS	Benicia City	894362	1.2	Certified	John Gant Jr	Field Utilities and Streets Supervisor	09-APR-24	17-APR-24	17-APR-24	Category 1 Spill	Rose Dr	04/08/2024 15:48	04/08/2024 16:00	04/08/2024 15:45		-		The spill originated from a manhole on Rose Dr.	38.08384	-122.16725	Manhole			60	The spill originated from a manhole due to a blockage in a gravity main.	Y	Drain inlet in the curb and gutter near the sewer manhole.	0	60	SSO is did not reach body of water.	0	0	Drainage Conveyance System; Street/Curb and Gutter (2 3)		Spill overflowed from sewer manhole and ran down curb and gutter to a drain inlet.	Y	38.08387	-122.16729							04/08/2024 16:00	Utilized reference sheet for estimating sewer spills that provides visuals of sso's from a manhole and gives an estimate of the per gallon flow. The estimate based on the visual and the reference sheet was 5 gallons per minute.	Time estimate was based on the time of notification, along with the amount that looked to have made it to the drain inlet, and the time the the responding crew ended the SSO.	Root Intrusion		Gravity Mainline		Polyvinyl Chloride (PVC)		25	NA	N	Cleaned Up (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Cleaned area around manhole, curb and gutter, and drain inlet with water and vacuum truck. Returned that portion to the sanitary sewer system.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		Will schedule to repair portion of gravity main where the root intrusion occurred.	To be determined.	04/08/2024 17:00	 Tree roots broke through the plastic gravity main at a joint and caused a blockage over time.	N			NA	Other (specify below)	Not enough of a spill to make it to a body of water, but was not fully captured from Storm drain inlet.	NA	NA	Other (specify below)	None	NA	0	N	N												
5S	5SSO11028	Active	SMD No. 1 CS	Placer Cnty Dept of Facility Services	894367	1.2	Certified	Robin Mahoney	Utility Program Manager		21-MAY-24	21-MAY-24	Monthly Category 3 Spill	3760 Grass Valley Hwy	04/02/2024 08:40	04/02/2024 08:50	04/02/2024 08:30				Gravity main was clogged by debris causing spill to occur at customer's cleanout.	38.951928	-121.099807	Lateral Clean Out (Private)			663	Sewer bubbling out of cleanout onto paved area. 	Y	Asphalt curb and gutter running parallel with Hwy. 49 into a drainage inlet where we captured.	637				637	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		Spill traveled down paved area where it was captured in D.I. before it entered water way.	Y	38.950375	-121.099768							04/02/2024 09:53	Spill volume was calculated using length X width X depth, and the recovered amount was calculated by the size of the D.I. and a reasonable estimate calculated by residual loss on asphalt.	Eyewitness accounts	Debris-General		Gravity Mainline		Polyvinyl Chloride (PVC)		36	Blockage in Gravity main caused sewer to exit at customer's cleanout.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Vacuum truck recovery, wash down water, and clean-up of debris.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		This line segment will be added to our hot spot list and cleaned every 6 months.		04/02/2024 15:17	After CCTV of the line found debris causing blockage. Hydro-cleaned line to remove blockage.		After CCTV of the line found debris causing blockage. Hydro-cleaned line to remove blockage. Line segment will be put on the hot spot list and cleaned every 6 months.	04/02/2024 15:19														N/A	N/A	Yes	N/A	Inspected using CCTV van, cleared line using Hydro cleaner.	N/A	Line segment will be put on the hot spot list and cleaned every 6 months.	N/A	After CCTV of the line found debris causing blockage. Hydro-cleaned line to remove blockage. Line segment will be put on the hot spot list and cleaned every 6 months.	
4	4SSO10486	Active	Santa Paula CS	Santa Paula City	894384	1.2	Certified	Clete Saunier	Public Works Director		11-APR-24	11-APR-24	Monthly Category 3 Spill	719 E Santa Paula Street	04/10/2024 07:40	04/10/2024 07:50	04/10/2024 07:00				It was at the intersection of Santa Paula Street and Walnut coming out of a manhole. It ran down Santa Paula Street to 7th Street then halfway down that block. It was contained with a berm and never made it to the storm drain. I measured 618 feet long 10 inches wide and 7/16� deep for the total of 139.6 gallons. The crew cleaned up after it was cleared.	34.35602	-119.06681	Manhole			139	A blockage in the sewer line down stream of Walnut and Santa Paula St, made up mostly of wipes and other debris. This blockage created a backup in the line that came out of the manhole cover at the above mentioned location.	N		0				139	Paved Surface		Intersection of Santa Paula Street and Walnut coming out of a manhole. It ran down Santa Paula Street  to 7th street then halfway down that block. It was contained with a berm and never made it to the storm drain. I measured 618 feet long 10 inches wide and 7/16� deep for the total of 139.6 gallons. The crew cleaned up after it was cleared. 	Y	34.35602	-119.06681							04/10/2024 08:56	Measured 618 feet long 10 inches wide and 7/16� deep for the total of 139.6 gallons	It was reported at 7:40 and was cleared by 8:56 am	Debris-General; Debris-wipes/Non-disposables		Manhole		Concrete		60	A blockage in the sewer line down stream of Walnut and Santa Paula St, made up mostly of wipes and other debris. This blockage created a backup in the line that came out of the manhole cover at the above mentioned location.	N	Cleaned Up (specify below)		Crew responded and located the spill, they followed the water down the street and located the end of the trail where they created a berm to prevent further travel of the spilled wastewater and to ensure none would make it to the storm drain system. The crew then went to the downstream manhole from the blockage and cleared it using the hydro rodder truck, making sure to capture the debris that was removed from the line. Once the spill was stopped and the line was clear, they cleaned the street and curb line using high pressure water and vacuumed up the spilled material from the berm area and street.	Adjusted Schedule/Method of Preventive Maintenance		Crew responded and located the spill, they followed the water down the street and located the end of the trail where they created a berm to prevent further travel of the spilled wastewater and to ensure none would make it to the storm drain system. The crew then went to the downstream manhole from the blockage and cleared it using the hydro rodder truck, making sure to capture the debris that was removed from the line. Once the spill was stopped and the line was clear, they cleaned the street and curb line using high pressure water and vacuumed up the spilled material from the berm area and street.		04/10/2024 08:56	Spill occurred at a manhole due to General Debris, Wipes		None	04/10/2024 12:18														Ventura County Environmental Health notification	The crew cleaned up after it was cleared. 	Crew created a berm to prevent further travel of the spilled wastewater and to ensure none would make it to the storm drain system. The crew then went to the downstream manhole from the blockage and cleared it using the hydro rodder truck, making sure to capture the debris that was removed from the line. Once the spill was stopped and the line was clear, they cleaned the street and curb line using high pressure water and vacuumed up the spilled material from the berm area and street.	None	Yes	None	Crew responded and located the spill, they followed the water down the street and located the end of the trail where they created a berm to prevent further travel of the spilled wastewater and to ensure none would make it to the storm drain system. The crew then went to the downstream manhole from the blockage and cleared it using the hydro rodder truck, making sure to capture the debris that was removed from the line. Once the spill was stopped and the line was clear, they cleaned the street and curb line using high pressure water and vacuumed up the spilled material from the berm area and street.. Prop 65 Form	Crew responded and located the spill, they followed the water down the street and located the end of the trail where they created a berm to prevent further travel of the spilled wastewater and to ensure none would make it to the storm drain system. The crew then went to the downstream manhole from the blockage and cleared it using the hydro rodder truck, making sure to capture the debris that was removed from the line. Once the spill was stopped and the line was clear, they cleaned the street and curb line using high pressure water and vacuumed up the spilled material from the berm area and street.	None	
2	2SSO10212	Active	Vallejo Sfcd CS	Vallejo Flood & Wastewater District (formerly Vallejo San & Flood Control District)	894387	1.2	Certified	Justin Keating	Director of Field Operations	10-APR-24	22-APR-24	22-APR-24	Category 2 Spill	505 Fleming Ave	04/08/2024 18:44	04/08/2024 19:12	04/08/2024 16:45		-		Manhole overflowing near 505 Fleming ave.	38.11699	-122.22787	Manhole			3240	The SSO spilled onto the street and then made it into a catch basin.	Y	Catch basin inlet storm line located on Admiral Callaghan lane.	3240	0			3240	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		District staff chased spill in storm drain collection system until no evidence of spill remained. Cleaned and vacuumed upstream system from this point.	Y	38.11662	-122.23237							04/08/2024 19:27	Duration and flow rate. District staff witnessed manhole overflowing at an estimated 20 gpm. 20 GPM x 162 Minutes = 3,240 gallons	Spill was originally reported to the City of Vallejo Water Department. Water department notified the District immediately at 18:44. District staff contacted original reporting party, who stated they first noticed the spill at 16:45.	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		58	Street, curb/gutter, storm drain collection system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	Plugged storm drain catch basin to prevent further spread downstream.  Washed down street and vacuum cleaned storm drain catch basin and storm drain system.	Plugged storm drain catch basin to prevent further spread downstream, called in additional staff and equipment, cleared blockage in sanitary sewer, washed down street and vacuum cleaned storm drain catch basin and downstream storm drain system.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Follow-up CCTV inspection - Completed Follow-up sewer main cleaning - Completed Preventative maintenance schedule created - Completed	All completed.	04/08/2024 21:14	District staff witnessed grease deposits when clearing blockage in sanitary sewer main. Follow-up CCTV inspection found root intrusion at location noted by original responding crews. Cause of spill is deemed to be due to grease deposits at area of root intrusion.	N												N													
6A	6SSO11120	Active	Truckee Sanitary District CS	Truckee SD	894390	1.2	Certified	Eric Sundale	Superintendent	11-APR-24	23-APR-24	23-APR-24	Category 1 Spill	11603 Donner Pass Rd.	04/08/2024 13:15	04/08/2024 13:39	01/07/2024 12:00	04/08/2024 15:17	24-2078	21-MAY-24	Please See Attached Initial SSR and Spill Memo	39.32466	-120.20899	Manhole		Two manholes overflowing	146580	Please See Attached initial SSR and Spill Memo.	Y	Please see attached initial SSR and Spill Memo.	2000	0	Please see attached initial SSR and Spill Memo.	146580	2000	Drainage Conveyance System that discharges to surface water; Surface Water		Please See Attached Initial SSR and Spill Memo	Y	39.32466	-120.20899							04/08/2024 13:53	Please See Attached Initial SSR and Spill Memo	Please See Attached Initial SSR and Spill Memo	Damage by Others Not Related to Collection System Construction/Maintenance		Manhole		Polyvinyl Chloride (PVC)		50	Please see attached Sewer Service Request.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Please see attached Sewer Service Request.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		Please See Attached Initial SSR and Spill Memo	Please see attached Sewer Service Request.	04/09/2024 13:44	Please See Attached Initial SSR and Spill Memo	Y	Please See Attached Initial SSR and Spill Memo	05/29/2024 13:54	Donner Creek	Stream/Creek		Small creek exiting Donner Lake	None	Other (specify below)	None	NA	0	N	Y	Please See Attached Initial SSR and Spill Memo	Please See Attached Initial SSR and Spill Memo									Please See Attached Initial SSR and Spill Memo	
6A	6SSO11120	Historical	Truckee Sanitary District CS	Truckee SD	894390	1.2	Certified	Eric Sundale	Superintendent	11-APR-24	23-APR-24	23-APR-24	Category 1 Spill	11603 Donner Pass Rd.	04/08/2024 13:15	04/08/2024 13:39	01/07/2024 12:00	04/08/2024 15:17	24-2078	21-MAY-24	Please See Attached Initial SSR and Spill Memo	39.32466	-120.20899	Manhole		Two manholes overflowing	146580	Please See Attached initial SSR and Spill Memo.	Y	Please see attached initial SSR and Spill Memo.	2000	0	Please see attached initial SSR and Spill Memo.	146580	2000	Drainage Conveyance System that discharges to surface water; Surface Water		Please See Attached Initial SSR and Spill Memo	Y	39.32466	-120.20899							04/08/2024 13:53	Please See Attached Initial SSR and Spill Memo	Please See Attached Initial SSR and Spill Memo	Damage by Others Not Related to Collection System Construction/Maintenance		Manhole		Polyvinyl Chloride (PVC)		50	Please see attached Sewer Service Request.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Please see attached Sewer Service Request.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		Please See Attached Initial SSR and Spill Memo	Please see attached Sewer Service Request.	04/09/2024 13:44	Please See Attached Initial SSR and Spill Memo	Y	Please See Attached Initial SSR and Spill Memo	05/29/2024 13:54	Donner Creek	Stream/Creek		Small creek exiting Donner Lake	None	Other (specify below)	None	NA	0	N	Y	Please See Attached Initial SSR and Spill Memo	Please See Attached Initial SSR and Spill Memo									Please See Attached Initial SSR and Spill Memo	
3	3SSO10291	Active	Montecito SD CS	Montecito Sanitary District	894395	1.3	Certified	Stephen Morelos	Collections Lead	11-APR-24	12-APR-24	12-APR-24	Category 2 Spill	350 San Ysidro Rd	03/31/2024 07:16	03/31/2024 08:16	03/30/2024 20:16		-		Spill location was coming from 4  private lateral clean out in rear of residence. 	34.43113	-119.63153	Lateral Clean Out (Private)			1080	Spill location was from 4  private lateral cleanout located in rear of residence and affected patio area as well as pool cover	N						36	Other (specify below); Unpaved Surface	concrete patio, unpaved surface, pool cover 	Residence rear patio and pool area were affected by spill 	Y	34.43111	-119.63153	34.43124	-119.63145	34.43116	-119.63136	34.43111	-119.6314	03/30/2024 21:46	Using the estimated spill start/stop time frame provided by the witness (home owner) and smart cover data charts, district staff was able to determine a more factual based time duration of the spill. Using the simulation based time duration of the spill on 2/19/24 from the exact same location and appearance point, staff was able to determine a spill of 12 gallons per minute from the private lateral cleanout. 	Using the estimated spill start/stop time frame provided by the witness (home owner) and smart cover data charts, district staff was able to determine a more factual based time duration of the spill. 	Flow Exceeded Capacity (Separate Collection System Only)		Gravity Mainline		Other (specify below); Vitrified Clay	VCP/CIPP LINED PIPE	61	residence rear patio and pool cover were affected by the spill.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Returned Portion of Spill to Sanitary Sewer System	Staff recovered 36 gallons of excess spill off of pool cover, contacted restoration company	Upon arrival at spill location, district staff was able to collect and recover 36 gallons of the spill on pool cover and return to waste water collection system. District staff contacted restoration company to begin clean up process. Staff assisted with cleanup process.	Other (specify below)	Due to upstream manhole elevation district staff will require residence to install backflow devise at lower lateral.	District will continue inspecting collection system for I&I and address findings on future projects. 	Ongoing process	03/31/2024 12:12	Spill was caused by hydraulic overload due to storm event.	N												Y													
8	8SSO10560	Active	Riverside City CS	Riverside City	894396	1.2	Certified	Kevin Street	Wastewater Operations Manager		15-APR-24	15-APR-24	Monthly Category 3 Spill	Canyon Crest Country Club Golf Course	04/10/2024 14:01	04/10/2024 14:12	04/10/2024 14:01				Grounds keeper noticed water flowing out of manhole (COL-MWS-2014206) at 2:01 pm. 117.33596 �W  33.95245 �N. 	33.95245	117.33596	Manhole			540	The spill never reached creek bed. It was contained within 20' of the manhole.	N		0				0	Other (specify below); Paved Surface; Unpaved Surface	Grassy area	Spill was contained within the Golf Course in the grassy area around the manhole.	Y	33.95254	-117.33651							04/10/2024 16:45	Pick & Vent Hole Estimation chart: 24.5 x 20 min plus 50 gallons of water = 540 Gallons. Spill initially reported as Category 2 and to CalOES based on initial concerns volume may exceed 1000 gallons before blockage could be eliminated. 	Estimated flows thru manhole cover vent holes and pick holes for SSO estimating.	Debris-General	Blockage caused by asphalt debris in the line.	Gravity Mainline		Vitrified Clay		58	Spill was absorbed in grass area while crews attempted to clear blockage. No foot traffic.	N	Cleaned Up (specify below); Contained All or Portion of Spill		Cleaned up all the waste and toilet paper around the manhole and disinfected the area with 1 gallon of Lysol and 50 gallons of clean water.	Other (specify below)	Broke and removed blockage and flow was resumed as normal.	Blockage caused by asphalt debris. Crew broke the blockage in the city main & manhole stopped overflowing.		04/10/2024 14:45	n/a		n/a	04/10/2024 14:45														n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a	
5S	5SSO11362	Active	SMD No. 2 CS	Placer Cnty Dept of Facility Services	894398	1.3	Certified	Robin Mahoney	Utility Program Manager		21-MAY-24	21-MAY-24	Monthly Category 3 Spill	8321 Jeanette Way Granite Bay, Ca 95746	04/04/2024 14:00	04/04/2024 14:30	04/04/2024 12:00				Gravity main was clogged by debris causing spill to occur at Customers cleanout.	38.746324	-121.215347	Upper Lateral (Private)			565	On 4/4, the spill was in the house, which was mopped up by the homeowners and cleaned by a third-party vendor. County staff went to the home on 4/4 but did not go inside. They spoke with the homeowner and due to no records in the County system about public connection, staff advised the homeowners to contact a plumber. After the plumber tv�d the line, they discovered the home is connected to public sewer and the homeowner contacted the County again on 4/5 at 7:30am to report this information and that sewer was then bubbling out of a cleanout onto the homeowner�s back lawn area. County staff arrived at 7:30am on 4/5 to clean up the spill.	N						565	Building or Structure; Other (specify below)	Sewage stayed on customers lawn.	Inside the home on 4/4 and then the backyard lawn on 4/5.										04/05/2024 09:30	The portion of the spill on 4/4, which was inside the homeowner's house, was cleaned up by the homeowner and a third-party cleaning company. Spill volume on the lawn was calculated using length X width X depth. Recovery was a visual after all sewage was vacuumed up with truck on 4/5.	Residents witnessed and Placer County Utility crew left after all sewage was cleaned up and no more sewage was discharging.	Collection System Maintenance Failure (specify below); Debris-General	Roots in Gravity Main	Gravity Mainline		Vitrified Clay		38	Blockage in Gravity main caused sewer to exit in customer's home and at customer's cleanout.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Vacuum truck recovery, wash down water, and clean up of debris.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	This home, in addition to the three other homes on the street that were not in the County record as being connected to public sewer (those 3 homes were not affected by this spill event), have been notified of connection status, issued record sewer permits, and added to the County records regarding connection to public sewer.	This line segment will be added to hot spot list.		04/05/2024 09:30	After CCTV of the line found debris causing blockage.		N/A	04/05/2024 09:30														N/A	N/A	Yes	N/A	Inspected using CCTV van, cleared line using Hydro cleaner.	N/A	N/A	Contained spill, cleared blockage, water wash down, vacuum truck recovery, and clean up of debris.	N/A	
2	2SSO10216	Active	West County WW District CS	West County Wastewater District	894404	1.2	Certified	Gordon Times	Collection Systems Operations Department Manager	12-APR-24	01-MAY-24	01-MAY-24	Category 2 Spill	317 Duboce Ave	04/11/2024 15:43	04/11/2024 16:05	04/11/2024 11:52	04/11/2024 18:09	24-2151		Water coming out of EBMUD meter box	37.95286	-122.36648	Other (specify below)	EBMUD Christy Box	Street	1315	Sidewalk & Street	Y	Storm Drain	1315	0			1315	Drainage Conveyance System that discharges to surface water		The spill entered storm drain at the corner of Fred Jackson Way and Duboce Ave.	Y	37.95268	-122.36695							04/11/2024 16:15	Spill was estimated using the San Diego Spill Chart at 5gpm	Relied on witness statement who expressed not noticing the spill earlier in the morning, then noticing it after 1130 that morning.	Debris-wipes/Non-disposables; Pipe Structural Problem/Failure - Controls		Gravity Mainline		Vitrified Clay		72	The spill entered the storm drain and was washed down and fully recovered. The spill had little impact on the surrounding environment..	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Returned All Spill to Sanitary Sewer System		The blockage was cleared shortly after the crew reached the site. The effects of the spill was cleaned and mitigated by WCW staff using water, brooms, vacuum equipment and sanitizer.	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		The line was CCTV inspected and was found to have a structural issue.	The repair of this pipe is scheduled for completion by the end of May, 2024.	04/12/2024 09:43	The CCTV inspection revealed a structural issue that allowed flushable wipes to block the flow of the pipe.	N												N													
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	894405	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	12-APR-24	17-APR-24	17-APR-24	Category 1 Spill	500 Westfield Way, Oakland Ca	04/11/2024 17:50	04/11/2024 18:45	04/11/2024 17:30		-		Manhole overflowing sewage on Easement next to the street on unpaved area, the sewage flowed to the street/gutter area where it entered a separate storm drain.	37.79748	-122.18008	Manhole			575	Manhole overflowing sewage on Easement next to the street on unpaved area, the sewage flowed to the street/gutter area where it entered a separate storm drain.	Y	Underground 15  diameter storm line called Lion creek, Arroyo Viejo creek, and Damon Slough, the storm line daylights on Elinora Avenue.	0	515	A stream of water called Lion creek, Arroyo Viejo creek, and Damon Slough.	515	60	Drainage Conveyance System that discharges to surface water; Paved Surface		Manhole overflowing sewage on Easement next to the street on unpaved area, the sewage flowed to the street/gutter area where it entered a separate storm drain.	Y	37.79748	-122.18008							04/11/2024 19:25	5 GPM x 115 Minutes = 575 gallons. Recovered from puddle: 8' L x 4' W x .25' D x 7.48 = 60 gallons. Discharge to storm drain: 575 - 60 = 515 gallons.	Start time was based on eyewitness account. End time was based on responding crew restoring the flow.	Debris from Construction	Notice recently paved trenches in the street, contractor had rehabbed the upstream mainline.	Gravity Mainline		Other (specify below)	HDPE	1	Manhole overflowing sewage on Easement next to the street on unpaved area, the sewage flowed to the street/gutter area where it entered a separate storm drain.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Sewer crew washed down and recovered portions of the spill from the street area.	Sewer crew washed down and recovered portions of the spill from the street area.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Sewer line was added to six-month high frequency program. W.O. 1458119.	Sewer line was added to six-month high frequency program. W.O. 1458119.	04/15/2024 09:45	CCTV found the main sewer has been in condition, overflow was caused by construction debris.	N			Lion creek, Arroyo Viejo creek, and Damon Slough	Stream/Creek		Stream	None.	Other (specify below)	None.	N/A	0	Y	N												
4	4SSO10449	Active	Thousand Oaks Municipal Service Center	Thousand Oaks City 	894416	1.2	Certified	Patrick McCulloch	Utilities Maintenance Supervisor	15-APR-24	17-APR-24	17-APR-24	Category 1 Spill	Combes Avenue/Paige Ln. Siphon	04/13/2024 09:49	04/13/2024 10:15	04/13/2024 09:49	04/13/2024 11:31	24-2187		Single spill that surfaced from a manhole structure in walking path just North of Combes Avenue. See Manhole Spill location photo and GIS Map Combes in attachments for reference. 	34.18785	-118.8658	Manhole	N/A	N/A	5200	Spill traveled down walking path to Combes Avenue/residential street. Puddled up on Combes Avenue and entered storm drain channel from storm drain inlet/catch basin. Sewage also entered large rectangular storm channel through gated access. See attached Spill Boundary photo 1 and 2, along with GIS Map attachment. 	Y	Large open rectangular concrete storm drain conveyance system. System goes underground approximately 1,000 ft. downstream and resurfaces further downstream where it becomes the Arroyo Conejo waterway.  	0	5100	Sewage entered into surface water from storm drain inlet and entered directly into open rectangular concrete storm drain conveyance system. This conveyance system makes its way to the Arroyo Conejo waterway. See attached GIS Map and Storm Drain photos in attachments for reference. 	5100	100	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)	N/A	On April 13, at 9:49 A.M., the on-call staff member received a report of a potential water leak. Upon investigation, it was found that the double barrel 6  siphons, situated at the end of Gainsborough Rd. and running through the park, were obstructed beneath the storm drain conveyance system. The backed-up flow had entered the old existing 10  main as intended for backup. The 10  main also backed up at its siphon due to grease buildup. Flow then surfaced at the manhole structure along the walking path for the backup 10  main. This overflow then spread to Combes Avenue and the storm drain conveyance system through multiple entry points. For detailed location and spread information, please consult the attached GIS map and photos in attachments. At 11:25 A.M., staff successfully cleared the 10  siphon, restoring normal flow conditions to the backup sewer main. Following this, both 6  siphons were cleared to regulate flow, consequently deactivating the backup 10  sewer main.	Y	34.18785	118.8658							04/13/2024 11:25	The methodology used was estimating SSO flow out of manhole cover in place. The flow from the cover was observed to be approximately 2 1/2 to 3 inches. We opted for the higher end of the estimate, around 3 inches, equating to 54 gallons per minute (gpm). This rate was then multiplied by the duration from when we were first notified of the spill.	The estimated start time of the spill was identified as the moment the operator received the phone call at 9:49 A.M. Subsequently, the end time of the spill was established at 11:25 A.M., when operators cleared the 10  siphon and flow stopped surfacing. 	Fats, Oil and Grease (FOG); Siphon Failure		Gravity Mainline; Siphon		Other (specify below)	6  pipe High Density Polyethylene (HDPE) 10  pipe Asbestos Cement Pipe. 	15	Spill impacted storm drain conveyance system with estimated 5,100 gallons lost. Strom drain conveyance system traveled to Arroyo Conejo waterway. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		City staff arrived at the site and promptly called in crew to mobilize specialized equipment, including hydro cleaning trucks and sandbags, to address the situation. Operators strategically placed sandbags around entry points of the storm drain conveyance system while utilizing the hydro combination truck to clear grease buildup from the siphons. Following this City staff proceeded to vacuum the accumulated sewage on Combes Avenue, cleanse the walking path and street, and clear debris from the storm drain inlet. Unfortunately, due to inclement weather and accessibility constraints, cleaning of the large open concrete storm drain system was not feasible. 	Adjusted Schedule/Method of Preventive Maintenance	Moved all siphons at location to a monthly cleaning schedule. 	Cleaned siphon's thoroughly. Could not inspect siphon's with CCTV equipment. Moving cleaning to a 1-month schedule to clear FOG more regularly. 	May 1, 2024, start cleaning siphons on a 1- month schedule. 	04/13/2024 14:00	During the hydro cleaning process of the 6  siphons and the backup 10  siphon/sewer main, grease buildup was identified. Once the 10  siphon was cleared of grease, it resumed flowing, followed by clearing of the 6  siphons, resulting in the restoration of normal flow conditions through the double barrel 6  siphons. Upon reviewing the cleaning schedule, it was observed that the 6  siphons were last cleaned on January 23, 2024, while the backup 10  siphon was cleaned on March 14, 2017. Unfortunately, conducting a CCTV inspection of the siphons to capture footage was not feasible. Consequently, it has been decided to transition both the 6  and 10  siphons to a monthly cleaning schedule.	N	N/A	04/15/2024 11:30	Lang Creek and Arroyo Conejo	Other (specify below)	Natural creek/waterway. 	The sewage spill made its way into large open concrete rectangular storm drain conveyance system labeled Lang Creek. This storm drain conveyance system goes underground approximately 1,000 feet downstream and travels a few miles and outlets into the Arro Conejo creek/waterway. 	No observed impacts on aquatic life. 	Other (specify below)	Placed spill notice signs near the gated storm drain conveyance system. This system restricts public access.	City of Thousand Oaks	4	N	N	The Lab Supervisor, Santos Marquez, from the City of Thousand Oaks, reached out to the Ventura County Environmental Health Division (VCEHD) regarding sampling. After assessing the situation, it was concluded that sampling couldn't proceed due to inclement weather and safety risks associated with accessing the expansive concrete storm drain conveyance system.	N/A									N/A	
5F	5SSO11601	Active	CSA 71.3 CS	Kern Cnty Eng & Surveying Services Dept	894421	1.2	Certified	jesus uribe	Wastewater Specialist		16-APR-24	16-APR-24	Monthly Category 3 Spill	jomani dr #7010	04/14/2024 13:00	04/14/2024 13:30	04/14/2024 11:30				spill came out of manhole on Jomani St.	35.39224	-119.14117	Manhole			750	spill came out of manhole in the street and traveled down the street curb making way into a dry storm basin.	Y	rain gutter at street curb dumps directly into storm run off basin 	0				0	Drainage Conveyance System; Street/Curb and Gutter (2 3); Unpaved Surface		storm run-off basin approximately 500ft away from manhole that overflowed. 	Y	35.39253	-119.13997							04/14/2024 13:45	I measured the area where spill was running, calculated the flow rate at about 5 gallons per minute and total time it took me to stop spill. 	spill area: 500ft X 1ft with X .04ft height X 7.48 = 150gal  and spill rate was estimated at 5gpm for 2 hour spill time =600 gal.	Pump Station Failure - Controls; Pump Station Failure - Power		Pump Station - Controls		Polyvinyl Chloride (PVC)		15	no impact caused by spill. concrete area was disinfected. 	N	Cleaned Up (specify below); Restored Flow		coned off area to keep people away, disinfected after I got pump station running.	Repaired Facilities or Replaced Defect		going to install smartcover meter to detect high level flows before they spill. 		04/14/2024 15:30	power outage caused pumps to trip, reset pumps and got them pumping again, auto dialer system glitched and didn't notify of high level alarm but it is corrected now.		power bump caused failure, nothing else to report. 	04/14/2024 15:30														NA	going to install smartcover meter to detect high level flows before they spill. 	NA	NA	NA	NA	NA	NA	power bump caused failure, nothing else to report. 	
2	2SSO10179	Active	San Jose City CS	San Jose City	894427	1.2	Certified	Ben Nguyen	Senior Engineer	17-APR-24	24-APR-24	24-APR-24	Category 1 Spill	1119 Starbird Cir, San Jose CA, 95117	04/10/2024 20:26	04/10/2024 20:55	04/10/2024 06:00	04/10/2024 21:51	24-2134		The spill appearance point was a sanitary sewer manhole in front of the property at 1119 Starbird Circle, San Jose, CA 95117.	37.306526463188	-121.965121701874	Manhole			16094	Sewage discharged from the spill appearance point (manhole) onto the street and traveled along the street and curb/gutter.  From the curb/gutter, the sewage eventually reached and entered a nearby storm drain inlet. This storm inlet is connected to the City of San Jose's municipal storm sewer system. The sewage then traveled within the storm system to a storm drain outfall and discharged to San Tomas Aquino Creek. Pictures of the spill boundary on land are uploaded as attachments.	Y	The spill reached nearby storm drain inlet near 1119 Starbird Circle (#1323) approximately 23 ft away. This storm drain inlet is connected to the City of San Jose's municipal storm sewer system. The sewage traveled within the storm system approximately 260 ft away from the storm inlet to a storm outfall discharge point along San Tomas Aquino Creek.	0	16001	The sewage reached San Tomas Aquino Creek while discharging from storm system outfall. The longitude and latitude location of the storm outfall along the San Tomas Aquino creek is approximately at 37.3066, -121.9642. Upon arrival, the responding Crew placed health warning signs to notify the public. Pictures of the storm drain outfall and health warning signs are included in the attachments.	16001	93	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		The spill (sewage) traveled along the street curb and gutter from the manhole near 1119 Starbird Circle (spill appearance point). The manhole is identified in 1.d. and 1.e. The spill reached and traveled along the curb and gutter, then entered City's storm inlet and drainage system. The location of the storm drain inlets is identified in 1.f/1.g. The spill reached the nearby surface water of San Tomas Aquino Creek through a storm outfall discharge point. The storm outfall discharge point is identified in 1.h/1.i.	Y	37.306526463188	-121.965121701874	37.30653791481	-121.965048417596	37.306611866285	-121.964290984098			04/10/2024 21:16	The total SSO spill volume was estimated by using the approximate flow rate during the spill response and applying that flow rate to a typical residential diurnal flow pattern. It was assumed that a typical diurnal residential flow pattern experiences a maxim flow rate from 6:00 to 12:00, 75% of the max flow from 12:00 to 18:00, 65% of the max flow from 18:00 to 24:00, and 15% of the max flow from 24:00 to 6:00. A total spill volume was estimated using this diurnal flow pattern and an approximate duration of the spill. For the spill on land, the Crew used approximate measurements to estimate the recovered volume. For the spill recovered from the storm drain system, an approximate depth of flow was measured while tracking the spill. The depth was applied to a partially filled cylinder calculation to estimate a volume for each of the storm drain pipes. The spill recovered from the MS4 was negligible (less than a gallon). 	The reporting party first noticed the spill on 4/10/2024 at 07:00. At that time, the reporting party stated that the spill had already reached the nearby storm drain inlet. Based on the reporting party's information and high visibility of the SSO appearance point, it was assumed that the SSO likely started shortly before the reporting party noticed the morning of 4/10/2024. The start time of the SSO is assumed to have started around 06:00 on 4/10/2024 when there is a typical peak flow for residential areas.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		66	The spill required cleanup of the street, curb and gutter near 1119 Starbird Circle. In addition, it was confirmed that raw sewage reached San Tomas Aquino Creek. Based on the responding Crew's visual observations, there was no adverse impact to the environment or wildlife at the time of the spill. The City of San Jose Environment Services Department (ESD) staff conducted a creek walk to assess the impact to the waterway on 4/11/2024. The result of the creek walk also showed no impact to the creek or wildlife. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Upon arrival, the responding City Crew immediately placed sandbags around the nearby storm drain inlet where the spill had entered. The Crew tracked the spill in the storm drain conveyance system (MS4). The responding City Crew placed sandbags in the furthest downstream manhole prior to the discharge point to the waterway. It was confirmed that that the spill discharged out from a storm drain outfall into San Tomas Aquino Creek. Once the blockage was cleared and the spill stopped, the Crew began their cleanup efforts. At the spill source point, a Crew flushed sewage from the asphalt and curb to the nearby storm drain inlet. Water was used from a nearby hydrant and Vacuum truck to clean all of the spill on land. A second Vacuum truck was positioned at the affected inlet to recover the spill on land and induced water. Most of the spill that reached the separate storm drain system was assumed to have been lost to the waterway due to the duration and proximity of the SSO.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		The City has planned the following corrective actions for this sanitary sewer overflow:  1. Adjust the plugged pipe segment operation and maintenance cleaning frequency from 1 year to 3 months. 2. Re-video the plugged sanitary pipe segment along with the upstream and downstream segments in 3 months prior to cleaning. 3. Distribute grease (FOG) outreach flyers to nearby residents. 4. Conduct upstream system analysis to identify any potential capacity deficiencies.	The City has scheduled the following corrective actions for this sanitary sewer overflow:  1. Adjust the plugged pipe segment operation and maintenance cleaning frequency from 1 year to 3 months. - completed on 4/17/2024 2. Re-video the plugged sanitary pipe segment along with the upstream and downstream segments in 3 months prior to cleaning. - scheduled for July 2024 3. Distribute grease (FOG) outreach flyers to nearby residents. - scheduled for May 2024 4. Conduct upstream system analysis to identify any potential capacity deficiencies. - scheduled for May 2024	04/10/2024 23:15	During the responding to the spill event, crew noticed grease and rags when the plug was cleared.  CCTV investigation result showed evidence of grease deposit along the segment. The staff concluded that the cause of the SSO was grease deposit.  	N		04/17/2024 18:00	San Tomas Aquino Creek	Stream/Creek		San Tomas Aquinas Creek, is a 16.5-mile-long (26.6 km) stream that heads on El Sereno mountain in El Sereno Open Space Preserve in Saratoga, California in Santa Clara County, California, United States. It flows north through the cities of Saratoga, Monte Sereno, Los Gatos, Campbell, Santa Clara and San Jose before its confluence with the Guadalupe Slough in south San Francisco Bay. San Tomas Aquino Creek is not intended for recreational usage or drinking water.	During the spill response, there was no adverse impact to the environment or wildlife observed. The following Thursday, 4/11/2024, an inspector from the City of San Jose Environment Services Department (ESD) conducted a follow up storm drain outfall inspection. There was no adverse impact to the environment or wildlife observed during the follow up inspection.	Other (specify below)	No public access impact - San Tomas Aquino Creek is not intended for recreational usage.	Santa Clara Valley Water District	0	N	N												
2	2SSO10216	Active	West County WW District CS	West County Wastewater District	894441	1.2	Certified	Gordon Times	Collection System Operations Department Manager		01-MAY-24	01-MAY-24	Monthly Category 3 Spill	5022 San Pablo dam Rd.	03/18/2024 15:42	03/18/2024 03:39	03/18/2024 14:40				The main line caused the lateral at 5022 San Pablo Dam Rd. to overflow.	37.96295	-122.28944	Backflow Prevention Device; Lateral Clean Out (Private)		N/A	50	The spill originated at the cleanout in the backyard of 5022 San Pablo Dam Rd. and ran down the driveway to the street. See attached pics.	N		0				50	Paved Surface; Unpaved Surface		The spill originated at the cleanout in the backyard of 5022 San Pablo Dam Rd. and ran down the driveway to the street.	Y	37.96295	-122.28944							03/18/2024 05:15	We counted upstream connections, used the eyeball method and the duration of the spill.	We counted that there were only seven residences above the spill, the time of day which was a very low flow. We saw that the spill covered a relatively small area and we broke the stoppage shortly after receiving the call.	Root Intrusion		Gravity Mainline		Vitrified Clay		75	The spill impacted a small area of the cement in the backyard and the driveway down to the street.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		We took pictures of the cleanout that was running over, immediately put sandbags down to contain the spill, rodded the line to break the stoppage, and used our Vactor to recover the spill.	Plan Rehabilitation or Replacement of Sewer		Placed the line on the list to be repaired.		03/18/2024 19:30	The line was televised and was found to have severe root intrusion and broken pipe which caused the spill.		None	03/19/2024 16:00														N/A	We will replace the line.	Rod the line more frequently.	Put this on the list for replacement.	CCTV Inspected the line and determined that we should replace it.	Will be added to the list for replacement.	Not yet available.	No modifications needed at this time.	None	
3	3SSO10287	Active	Marina Coast CS	Marina Coast WD	894444	1.2	Certified	Derek Cray	Operations & Maintenance Manager		22-APR-24	22-APR-24	Monthly Category 3 Spill	Imjin/Abrams	04/15/2024 09:58	04/15/2024 09:58	04/15/2024 08:52				The spill originated from a 1in ARV service line which was damaged by the heavy equipment being used to complete the city� s road widening project. 	36.66456	-121.77805	Other (specify below)	Appearance point was located off an arv service line. 		55	The spill was contained in the dirt area which extended approximately 10 ft south of the appearance point. The spill did not make it to any roadways or storm drains. 	N						0	Unpaved Surface		Spill originated from an ARV service line which developed a small crack due to the weight of the heavy equipment working in the area. The spill seemed to be intermittent, all sewage was contained within the dirt area to the south of the appearance point. 	Y	36.66456	-121.77807							04/15/2024 10:43	The spill volume was calculated by separating the spill path into four sections to allow for a more accurate measured representation of the complete spill volume. LxWxH was used to calculate the gallons in each section which were then totaled to obtain the total spill volume. 	The estimated spill start time was determined by dividing the total spill volume by the estimated spill rate. 55gallons/.5gpm=111min. Estimated start time is 8:52am  Spill end time was captured at 10:43 which was the time the force main was drained back to the lift station. All sewage at the lift station was removed by the vac truck and transport to a manhole where it was properly returned to the sanitary system. 	Other (specify below)	Damaged Air Relief service line	Other (specify below)	Damaged Air Relief service line	Galvanized Steel		45	Due to the extremely low intermittent spill rate of .5 gpm, the sewage was contained within the surrounding dirt. The total spill path extended approximately 10ft south. Sewage did not make it to any roadways or storm drains.	N	Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below)	Mitigated sewer flow at the lift station as well as draining of the force main to stop the intermittent flow of sewage at the spill point.  	Mitigated sewer flow at the lift station as well as draining of the force main to stop the intermittent flow of sewage at the spill point.  	Repaired Facilities or Replaced Defect		This area is part of the city's road widening project. The damage to the ARV service line was caused by the contractor�s heavy equipment. The galvanized service line was replaced with a poly line which is stronger as well as flexible. Once the road work is complete the ARV will be reinstalled. 		04/15/2024 14:00	The spill was caused by the heavy equipment being used for the city�s road widening project.  The project is utilizing heavy equipment to remove trees, dirt and meet compaction requirements.  During this work the 1in ARV service line was compromised which allowed for an intermittent .5 gpm leak. The spill was mitigated by using the surrounding dirt as containment as well as draining the force main back to the lift station. The flow at the station was then removed with our vac truck and properly returned to the sanitary sewer system at an appropriate location. 		N/A, this spill was caused by construction activity and not a sanitary sewer system failure.	04/15/2024 14:00														N/A	The compromised service line was replaced with a poly service which is stronger as well as flexible. To help prevent any further spills during the construction, the ARV will be reinstalled after the road work has been completed. 	N/A	This location is currently not on any CIP list. However, due to the road work a segment of main located south of this location is scheduled to be replaced due to the new proposed grade elevation.	A permanent repair was achieved using modern materials.  	No Capital improvement projects are currently scheduled for this segment of force main. There is a segment south of this location that is scheduled to be replaced to meet the grade of the new roadway currently being constructed. 	N/A	N/A	N/A, this spill was caused by construction activity and not a sanitary sewer system failure.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	894453	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2		17-APR-24	17-APR-24	Monthly Category 3 Spill	1643 Grandview Drive, Oakland Ca	04/05/2024 20:30	04/05/2024 21:30	04/05/2024 19:00				Manhole on an easement on a hillside overflowing onto unpaved surface and soaking into the soil.	37.85696	-122.23005	Manhole			175	Manhole on an easement on a hillside overflowing onto unpaved surface and soaking into the soil.	N						0	Unpaved Surface		Manhole on an easement on a hillside overflowing onto unpaved surface and soaking into the soil.										04/05/2024 23:50	58'L x 4.3'W x .5'D x 7.48-gal x .1875 = 175 gallons Average width: 3' + 4' + 6' =13' /  3 = 4.3'	Start time was based on witness account. End time was based on responding sewer crew restoring the flow in the mainline.	Root Intrusion		Gravity Mainline		Vitrified Clay		125	Manhole on an easement on a hillside overflowing onto unpaved surface and soaking into the soil.	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow	Sewer crew raked and removed solids from the affected spill area on the hillside.	Sewer crew raked and removed solids from the affected spill area on the hillside.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Mainline has been added to 6-month high frequency maintenance program. W. O. #1516547		04/06/2024 01:30	Responding sewer crew found root intrusion in the mainline to have been the potential cause of the blockage and overflow.		CCTV inspection was done, W.O.# 1516169, staff found more investigation is needed to complete the assessment of the mainline.	04/26/2024 12:21														N/A	Mainline has been added to 6-month high frequency maintenance program. W. O. #1516547	Mainline has been added to 6-month high frequency maintenance program. W. O. #1516547	N/A	CCTV inspection was done, W.O.# 1516169, staff found more investigation is needed to complete the assessment of the mainline.	N/A	CCTV inspection was done, W.O.# 1516169, staff found more investigation is needed to complete the assessment of the mainline. Mainline has been added to 6-month high frequency maintenance program. W. O. #1516547	Mainline has been added to 6-month high frequency maintenance program. W. O. #1516547	CCTV inspection was done, W.O.# 1516169, staff found more investigation is needed to complete the assessment of the mainline.	
9	9SSO10706	Active	Temecula Valley RCS	Eastern Municipal Water District	894464	1.6	Certified	Ken Tagney	Director of Water Reclamation	25-APR-24	25-APR-24	25-APR-24	Category 1 Spill	Pourroy Road West of Spicebush Lane	04/16/2024 08:45	04/16/2024 08:45	04/15/2024 21:03	04/16/2024 15:17	24-2240	29-MAY-24	There where a total of seven appearance points adjacent to the failure point. These appearance points where in the planter on both sides of Pourroy Road, the street and sewer manhole. All appearance points where in the area of the broken force main. 	33.56931	-117.10393	Force Main; Manhole; Other (specify below)	Planters adjacent to Pourroy Road and street.		264627	The spill flowed from the planters and street into the storm drain. The storm drains on Pourroy Road flow into a pipe that is under the street and then flows into the vegetated open area on the northwest side of Pourroy Road. 	Y	The storm drain inlet on Pourroy Road where the SSO entered outfalls directly into the creek. The pipe run from the storm drain to the creek is less than 30 feet so there was no material left in the drainage conveyance system once SSO was stopped. 	0	0	Concrete drainage pipe on the northwest side of Pourroy Road. 	264627	0	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water		The destination of the spill is Tucalota Creek. The creek already had water in it from the recent rains. 	Y	33.56931	-117.10393							04/16/2024 09:33	The flow was calculated using SCADA which referenced the flow for the EMWD owned Pourroy Lift Station. 	SCADA and lift station flow meter. 	Other (specify below)	Broken force main pipe. 	Force Main		Polyvinyl Chloride (PVC)		15	A portion of Pourroy Road was closed for an extended period of time while repairs to the force main were made. 	N	Cleaned Up (specify below); Other (specify below); Restored Flow	See 9b for description of other. 	Repair pipe, clean areas along Pourroy road that where affected by the spill, post signs, and  collect samples for the point of entry and downstream. Upstream location was dry with no standing water or flow. The vegetated area to the northwest of Pourroy Road did not offer adequate access due to lack of gates and heavy vegetation. Due to limited and potentially unsafe vehicle access, EMWD was not able to make entry to attempt recovery of SSO material. 	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		The pipeline was inspected using a CCTV camera to determine the point of failure. EMWD crews excavated the area and replaced a 23-foot section of the force main.  	Work was completed on the repairs on 04/17/24.	04/17/2024 07:30	It was determined during the investigation that a section of the force main was broken and that is what caused the spill. 	Y	Determine root cause of asset failure.	05/31/2024 08:28	Tucalota Creek	Other (specify below); Wash	Seasonal Creek	Tucalota Creek is a seasonal creek in the Santa Margarita River water shed. 	No impact to to aquatic life was observed. 	Other (specify below)	The area of the creek is already restricted access due to gates and heavy vegetation. This area is not a public use area. 	N/A	0	N	Y	Samples where collected at the point of entry on the northwest side of Pourroy Road and downstream approximately 300-feet from the point of entry.  Upstream of Pourroy Road, (southeast) was dry so no sample was collected. 	Ammonia and Total Coliform 									Determine root cause of asset failure.	
5S	5SSO11029	Active	SMD No. 3 CS	Placer Cnty Dept of Facility Services	894469	1.5	Certified	Robin Mahoney	Utility Program Manager	18-APR-24	19-APR-24	19-APR-24	Category 1 Spill	9736 Magellan Dr. - Magellan Pump Station	04/17/2024 09:05	04/17/2024 09:38	04/17/2024 09:04	04/17/2024 10:37	24-2258		38.816687, -121.117596	38.816687	-121.117596	Force Main			990	The spill was caused by a core drill by a subcontractor to a County sewer design consultant that broke the force main which was clearly marked as a sewer utility.  The drill location was appx 1.5 foot from our USA mark.  The sewer went down the station driveway and ended in a drainage dich that goes to a seasonal pond.	Y	At the end of the driveway is a drainage ditch that flows to a seasonal pond.	400	590	There was one drainage ditch that discharged into the surface water. The drainage ditch was cleaned using a vacuum pumper truck and the pond was not cleaned. The estimate recovered was 400 gallons in the pumper truck.	590	400	Drainage Conveyance System; Paved Surface; Surface Water		The sewer went down the driveway and ended in a drainage dich that goes to a seasonal pond.	Y	38.816687	-121.117596							04/17/2024 09:30	Calculated pump cycles and run times on the lift station pumps  3 pump cycles x 330 gallons per cycle = 990 gallons  	Eyewitness accounts	Damage by Others Not Related to Collection System Construction/Maintenance	Geocon (Core drilling contractor) drilled vertically down through the 4� Magellan force main.	Force Main		Polyvinyl Chloride (PVC)		49	Spill had minimal impact to the surrounding area. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Upon arrival we turned off the pump station to stop any further spill.	Repaired Facilities or Replaced Defect		The spill was caused by a contractor not following the USA laws. The area was clearly marked within 18 inches of the edge of the boring hole, they should not have been using power equipment that close to a high priority pressurized sewer pipeline. In addition, no onsite meeting was scheduled prior to the boring.	N/A	04/17/2024 10:37	Goecon who is a drilling contractor drilled a 4� vertical boring hole and hit the 4� force main at 5� deep. The area was clearly marked with green paint 18  from the edge of the boring hole. 	N			No name	Other (specify below)	Seasonal pond	Small seasonal pond	No impact observed by Environmental Health.	Other (specify below)	None.	N/A	0	N	N												
2	2SSO10179	Active	San Jose City CS	San Jose City	894471	1.2	Certified	Ben Nguyen	Senior Engineer	17-APR-24	26-APR-24	26-APR-24	Category 1 Spill	3668 El Grande Drive San Jose CA 95132	04/12/2024 16:24	04/12/2024 16:54	04/07/2024 06:00	04/12/2024 18:13	24-2177		The spill appearance point was sewer seeping out of the ground within the landscape area in front of the property at 3668 El Grande Drive San Jose CA 95132	37.39781	-121.83115	Other Sewer System Structure	The spill appearance point was sewer seeping out of the ground within the landscape area in front of the property at 3668 El Grande Drive San Jose CA 95132		14159	The spill discharged from the appearance point and traveled along edge of concrete driveway, then discharging into the street's curb/gutter. From the curb gutter, the sewage traveled along the street and reached nearby storm inlet. This storm inlet is connected to the City of San Jose's municipal storm sewer system. The sewage traveled within the storm system to municipal to a storm outfall discharging to the Dutard Creek which terminates at the Pennetencia Creek.	Y	The spill reached nearby storm drain inlet along El Grande drive. This storm drain inlet is connected to the City of San Jose's municipal storm sewer system. The sewage traveled within the storm system to a storm outfall discharge point at  Dutard Creek which will terminated at Pennetencia Creek.	0	13927	The sewage reached Dutard Creek while discharging from storm system outfall. The location of the storm outfall along the Dutard creek is approximately at 37.39494912899603, -121.82883890524886	13927	232	Surface Water		Spill discharge from a point on private lateral, flows between private driveway and landscape, enters the curb and gutter, and entered a catch basin.  The catch basin is part of a public MS4. Flow ends up at an outfall and reaches the water way.  Approximation of the outfall is show below with GPS coordinates. 	Y	37.39569	-121.82944							04/12/2024 18:55	Volume was estimated based on RP's report of start date, 4/7/24 thru the stoppage of the spill on 4/12/24. Crew estimated flow rate was at 2 gpm at the time of responding.  Final volume estimation was adjusted with diurnal pattern at investigation. 	Volume was estimated based on the flow duration method with approximation of 2 gpm 	Damage by Others Not Related to Collection System Construction/Maintenance; Pipe Structural Problem/Failure - Installation		Gravity Mainline		Vitrified Clay		66	Spill reached the water way.  Staff conducted a site investigation and found that there is no adverse impact to the Pennetencia Creek. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Crew contained placed sandbags at catch basin immediately upon arrival and recognized water had entered the catch basin.  Crew proceeded to set up clearing the plug and start cleaning up activities.  	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		Crew immediately conducted repair of the collapsed pipe and restored flow of the main.  The repair was completed the following day.  Staff adjusted to shorter cleaning cycle for the segment and will conduct CCTV video inspection after six months. 	Immediate repair Shorten cycle to 24 months Video inspection after 3 months	04/12/2024 23:05	ESD staff walk the creek from the outfall to where it terminate at Pennetencia Creek.  Staff checked for ammonia trace at outfall at the time of responding and the day after.  Staff found no odor, trace of sewage residue, and no evidence of adverse impact to the creek. 	N			Dutard Creek and Pennetencia Creek	Stream/Creek		Upper Penitencia Creek is actually one of two creeks by the name Penitencia Creek in the northeastern Santa Clara Valley of Santa Clara County, California. They are both tributaries of Coyote Creek. The upper creek was diverted southwestward, connecting it directly to Coyote Creek.  	None	Other (specify below)	No public access impact.  Staff posted sign near the outfall.  	Valley Water	0	N	N												
5S	5SSO11040	Active	Riverbank CS	Riverbank City	894485	1.2	Certified	Cody Bridgewater	Director of Public Works	18-APR-24	23-APR-24	23-APR-24	Category 1 Spill	8th Street	04/17/2024 16:45	04/17/2024 17:25	04/17/2024 16:45		24-2292		terminal cleanout located in alley between topeka and santa fe streets	37.73658	-120.92698	Other (specify below)	terminal cleanout		350	asphalt alley, adjacent yard, and gutter pan	Y	storm drain inlet located at 8th and santa fe st	250	100	photos attached, outfall located at 8th street and stanislaus river	100	250	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		8th St Outfall	Y	37.73791	-120.92681							04/17/2024 17:25	measurements of wet areas in field and depth of standing water	.33 ft x 660 ft x .02 ft x 7.48 / 2 = 16 gallons in gutter 2000 sq ft x .02 ft x 7.48 = 300 gallons in adjacent yard assumed wet area in alley approx. 30 gallons  estimation of 250 gal of spill contained and returned to sewer 100 to storm system to outfall 	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		40	spill reached alley, adjacent yard, curb/gutter, and storm drain	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		stopped blockage, flushed street with fresh water and removed from surface with vac trucks, returned water to sewer system. Flushed storm drain and returned water to sewer system. cleaned up ajdacent yard with fresh water, chlorine, and vac trucks	Adjusted Schedule/Method of Preventive Maintenance		Increase frequency of cleaning	monthly basis	04/17/2024 19:30	heavy grease when cleaning mainline	N			Stanislaus River	River		Stanislaus River	N/A	Other (specify below)	N/A	N/A	0	N	N												
2	2SSO10200	Active	Sunnyvale CS	Sunnyvale City	894486	1.3	Certified	Winola Cheong	Senior Engineer		18-APR-24	18-APR-24	Monthly Category 3 Spill	680 Kifer  Rd  	03/20/2024 13:00	03/20/2024 13:15	03/20/2024 13:00				See Attachment 	37.37532	-122.01821	Gravity Mainline; Manhole			80	See Attachments	N						80	Street/Curb and Gutter (2 3)		See Attachments 	Y	37.37648	-122.01708	37.37214	-122.03285	37.37588	-122.01656	37.37532	-122.01821	12/31/2023 13:30	Eye Estimated Method - See Spill Packet in Attachments 	See Incident Summary in Spill Packet in Attachments.  	Other (specify below)	plumbing debris found in main - See pictures 	Gravity Mainline; Manhole		Vitrified Clay		60	Sewage in public street  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Contained spill using spill shark.  Restored flow with jet flusher. Used cleaning solutions/chemicals and pressure washer to disinfect and clean affected area. All water used was captured and returned to sewer system. Please see pictures in attachments . 	Inspected Sewer Using CCTV to Determine Cause		Conducted a post spill CCTV , flushed area of debris and removed section of pipe found in manhole.  See pictures in attachment 		03/20/2024 14:40	Plumbing debris found in main causing flow issues. See attached pictures.. 		not applicable at this time 	03/22/2024 08:15														not applicable	Isolated issue. Pipe was cleaned and restored to normal flow. 	Not required at this time per CCTV inspection 	No need to make any repairs based on CCTV inspection 	CCTV was completed. Please see attachments 	Not needed at this time 	Not needed at this time 	Spill was contained using current SOP	not applicable at this time 	
2	2SSO10200	Active	Sunnyvale CS	Sunnyvale City	894492	1.1	Certified	Winola Cheong	Senior Engineer		18-APR-24	18-APR-24	Monthly Category 3 Spill	493 La Conner Dr	03/23/2024 16:12	03/23/2024 16:35	03/23/2024 16:00				Please see attached..	37.34018	-122.03436	Gravity Mainline; Manhole			850	See Attached 	N		0				850	Street/Curb and Gutter (2 3)		See attached. 	Y	37.33991	-122.03414	37.33994	-122.03303					03/23/2024 17:35	See attached Spill Response Report 	GPM x Time 	Root Intrusion		Gravity Mainline; Manhole		Vitrified Clay		60	Sewer in public street 	N	Cleaned Up (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Used spill shark to contain spill. used VacCon to restore flow returned all materials to sewer system. 	Inspected Sewer Using CCTV to Determine Cause		See Attached		03/23/2024 18:45	Heavy root intrusion found by CCTV . Roots were removed from main using hydraulic cutter and verified with CCTV   		CCTV main / Root saw and flush main 	03/29/2024 10:25														Not Applicable 	Not needed isolated event 	Not Applicable	Root Saw main 	See CCTV report. 	Not Applicable 	See Attachments 	Not Applicable 	CCTV main / Root saw and flush main 	
2	2SSO10179	Active	San Jose City CS	San Jose City	894494	1.3	Certified	Ben Nguyen	Senior Engineer	18-APR-24	30-APR-24	30-APR-24	Category 1 Spill	1582 Harvest Drive San Jose CA 9127	04/16/2024 16:06	04/16/2024 16:38	04/16/2024 15:30	04/16/2024 17:43	24-2247		The spill appearance point was a manhole in front of the property 1582 Harvest Drive San Jose CA 9127	37.35333	-121.80094	Manhole			530	The spill discharged from the manhole and traveled along the street curb/gutter.  From the curb gutter, the sewage traveled along the street and reached a  nearby storm inlet (near the intersection of Harvest and Mt Pleasant).  This storm inlet is connected to the City of San Jose's  municipal storm sewer system.  The sewage traveled within the storm system to  a storm outfall discharging to the Silver Creek (near the intersection of Farrington/Park/Moss Point Drive, about over a mile southwest of the spill point).	Y	The spill reached nearby storm drain inlet along 1582 Harvest Drive. This storm drain inlet is connected to the City of San Jose's municipal storm sewer system. The sewage traveled within the storm system to a storm outfall discharge point at Silver Creek.	0	0	The sewage reached Silver Creek while discharging from storm system outfall.  The location of the storm outfall along he San Tomas Aquino creek is approximately at 37.3461, -121.812	447	83	Surface Water		Water travel from inlet near the appearance point to an storm outfall into the Lower Silver Creek 	Y	37.34603	-121.81604							04/16/2024 16:46	Spill volume was estimated using flow duration method where the flow rate was estimated at 5 gpm at the event duration of 106 minutes.  	Spill volume was estimated using flow duration method where the flow rate was estimated at 5 gpm at the event duration of 106 minutes.   Flow rate was assumed to be constant for the entire duration of 106 minutes.  	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		65	Crew cleaned the street and curb/gutter.  There is no impact to the public as the spilled was cleaned up.  Staff conducted inspection at outfall where the creek was lined with concreted.  Staff evaluated up stream and down stream at the outfall.  Staff found no impact to the creek or wild life.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Staff cleared the plug, clean up street surface, flushed and vacumned water from MS4, inspected and tested the outfall, and posted Raw Sewerage sign near creek's maintenance path (with locked gate).  	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause		Staff will do grease flyer distribution. Staff will re-video the segment in 6 months. Maintenance cycle will be adjusted pending the re-videoing of the line.   	Adjusted maintenance cycle pending the re-video inspection after 6 months.  	04/16/2024 21:48	Staff discussed the event with field responder.  Staff reviewed CCTV inspection data.  Impacted segment showed evidence of grease deposit along the segment which was aligned with the evidence when the plug was cleared and observed by field crew.  Staff concluded that the cause was grease.  	N			Lower Silver Creek	Stream/Creek		Lower Silver Creek is a 4.7-mile-long northwest and westward-flowing stream currently originating just north of Lake Cunningham in Evergreen Valley in southeast San Jose, Santa Clara County, California. It is tributary to Coyote Creek, whose waters flow to south San Francisco Bay and the Pacific Ocean. 	No impact.	Other (specify below)	No impact.  	Valley Water 	0	N	N												
4	4SSO11423	Active	Long Beach Water Dept. CS (SSO program)	Long Beach City, Water Dept	894506	1.1	Certified	Jennifer Rojas	Senior Director 		23-MAY-24	23-MAY-24	Monthly Category 3 Spill	191 Pomona Ave	04/17/2024 11:20	04/17/2024 11:54	04/17/2024 11:18				The spill originated at the city sewer manhole Q06-SMH-011. 	33.75882	-118.13231	Manhole			294	The spill originated at the city sewer manhole in the alley and traveled down the alley onto the street curb and gutter. From there, it traveled into the Long Beach storm drain catch basin. The crew implemented containment measures by placing barriers to prevent the spill from spreading further.	Y	The spill affected a Long Beach Public Works gutter catch basin, which is connected to a storm drain pipeline and a stormwater vault.	44				294	Drainage Conveyance System; Street/Curb and Gutter (2 3)		The sewage exited the system at the city sewer manhole in the alley and traveled down the street curb and gutter into the Long Beach storm drain catch basin. Sandbags were strategically placed to contain the spill at the street curb and gutter.  The storm drain vault collected the spill, and Ocean Blue was able to vacuum and clean the street, gutter, and conveyance system.	Y	33.75837	-118.13263							04/17/2024 12:00	The spill was estimated based on the rate of overflow from the manhole and the time duration of the spill. Upon arrival, it was observed that the manhole was overflowing at a rate of 7 gallons per minute. The spill start time was estimated to be at 11:18 AM, and the spill was stopped by 12:00 PM, resulting in a total spill duration of 42 minutes. By Multiplying the overflow rate 7(GPM) by the duration of the spill, 42 minutes, the total spill volume was calculated to be 294 gallons.	The spill start time was estimated based on a statement from a Business Owner who noticed water coming out from the manhole at approximately 11:18 AM. The spill end time was determined by the time the cleaning crew arrived and managed to stop the overflow, which was recorded at 12:00 PM.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		90	The sewer spill reached the storm drain and gutter, posing potential environmental risks. However, the impact on the community was minimal due to prompt response and clean-up measures.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		1. Spill Containment: A sewage overflow from the city sewer manhole resulted in a spill of approximately 294 gallons. Containment measures, such as deploying barriers, were implemented to prevent the spill from spreading beyond the affected area. 2. Cleanup Efforts: Ocean Blue Environmental initiated the cleanup operations for the spill on the street, alley, and in the conveyance system. A pressure washer and a vacuum truck were used to clean up the 294 gallons of sewage. 	Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause		The corrective actions taken for the spill include immediate containment and clean-up. The pipe segment was thoroughly Hydro-jetted. The containment measures were implemented promptly to prevent the spill from spreading beyond the affected area. Ocean Blue Environmental carried out cleanup operations, using a pressure washer and a vacuum truck to remove the 294 gallons of sewage from the street and conveyance system. It is important to note that upstream segments near the restaurants were already identified as hotspots and are on our repeat list.		04/17/2024 15:15	A post-CCTV inspection was conducted on 4/18/2024 to determine the cause of the main line stoppage. It was found that heavy grease was the culprit. The pipe segment was also thoroughly hydro-jetted to restore normal wastewater flow, effectively resolving the problem.		No ongoing investigation	04/18/2024 09:01														The Long Beach Health Department was notified and on-site to observe the clean-up efforts..	We have a 2-year Preventive Maintenance Program in place to ensure the long-term health and functionality of our sewer system. We will also investigate the reason for the grease discharge by conducting a FOG Inspection.	the pipe segment was thoroughly Hydro-Jetted. We will continue with our preventive maintenance program for this pipe segment.	there is no planned rehabilitation or replacement of this segment.	CCTV inspections were conducted to identify the cause and location of the grease blockage. Once the cause and location were determined, appropriate measures were taken to clean the blockage thoroughly.	None planned.	The fog inspection will be conducted, with the Long Beach Health Department maintaining the inspection records.	we will continue following our spill response procedures on containment and clean-up efforts. 	No ongoing investigation	
3	3SSO10331	Active	Scotts Valley CS	Scotts Valley City	894509	1.2	Certified	Jeremy Long	Wastewater Division Manager		24-APR-24	24-APR-24	Monthly Category 3 Spill	La Cuesta Dr. and Mt. Hermon Rd.	04/10/2024 17:00	04/10/2024 17:30	04/10/2024 16:50				Sewage seeping from manhole in the street near La Cuesta Dr. and Mt. Hermon Rd.	37.037902	122.022502	Manhole			250	Approximately 200-300 gallons of raw sewage seeped out of a manhole and puddled in the roadway and gutter. Was able to clean up before sewage reached any drainage conveyance.	N						150	Street/Curb and Gutter (2 3)		Approximately 200-300 gallons of raw sewage seeped out of a manhole and puddled in the roadway and gutter. Was able to clean up before sewage reached any drainage conveyance.										04/10/2024 18:15	Eyeball method volume measurement worksheet. Measured the dimensions of the spill. Volume of the spill recovered was measured using vactor truck storage after cleanup was completed.	The spill was on a heavily traveled road and was reported immediately. No evidence was seen in the roadway that would suggest the spill was ongoing longer.	Debris-General; Debris-Rags		Gravity Mainline		Polyvinyl Chloride (PVC)		15	minor backup	N	Cleaned Up (specify below); Restored Flow		Cleaned up the spill using the vactor truck to suck up all water on the surface and the water backed up in the manhole. Then jetted the main line to clear the blockage and restore flow.	Added Sewer to Preventive Maintenance Program		Will monitor the location with known  hotspots  over the next several months.		04/10/2024 18:15	Spill was caused by the blockage of the mainline by rags and debris.		None	04/10/2024 18:15														none	monitoring	Will monitor the location with known  hotspots  over the next several months.	Will monitor the location with known  hotspots  over the next several months.	N/A	N/A	N/A	N/A	None	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	894521	1.1	Certified	Ameal McLaurin	Sewer Supervisor 2		22-APR-24	22-APR-24	Monthly Category 3 Spill	7149 Buckingham Blvd., Oakland Ca	04/20/2024 17:43	04/20/2024 19:00	04/20/2024 17:00				Above ground 6  PE gravity mainline was disconnected on a hillside.	37.86101	-122.22229	Gravity Mainline			303	Above ground 6  PE gravity mainline was disconnected on a hillside; the sewage flowed on unpaved surface on the hillside where it soaked into the soil.	N						0	Unpaved Surface		Above ground 6  PE gravity mainline was disconnected on a hillside; the sewage flowed on unpaved surface on the hillside where it soaked into the soil.										04/21/2024 10:37	72'L x 3'W x 1'D x 7.48-gal x .1875 = 303 gallons Average width: 1' + 2' + 4' + 5' = 12' / 4 = 3'	Start time was based on eyewitness account. End time was based on sewer crew repairing and reconnecting the gravity mainline.	Other (specify below)	Mainline was disconnected due to ground movement on the hillside.	Gravity Mainline		Polyvinyl Chloride (PVC)		10	Above ground 6  PE gravity mainline was disconnected on a hillside; the sewage flowed on unpaved surface on the hillside where it soaked into the soil.	N	Cleaned Up (specify below); Restored Flow	Raked and hauled away solids from the spill area.	Raked and hauled away solids from the spill area.	Added Sewer to Preventive Maintenance Program; Repaired Facilities or Replaced Defect		Added sewer to preventative maintenance program.		04/21/2024 15:00	Mainline was disconnected due to ground movement on the hillside. Staff reconnected and repaired the above ground mainline. W. O. # 1519562		N/A	04/21/2024 15:00														N/A	Staff repaired the above ground mainline. W. O. # 1519562 Added sewer to 1-month visual check preventative maintenance program. W.O. # 1519810.	Added sewer to preventative maintenance program. W.O. # 1519810.	N/A	Staff repaired the above ground mainline.	N/A	Staff repaired the above ground mainline. W. O. # 1519562 Added sewer to 1-month visual check preventative maintenance program. W.O. # 1519810.	Staff repaired the above ground mainline. W. O. # 1519562	N/A	
8	8SSO10617	Active	Eastern Municipal Water District CS	Eastern Municipal Water District	894523	1.1	Certified	Ken Tagney	Director of Water Reclamation		25-APR-24	25-APR-24	Category 2 Spill	Creag Avenue Homeland	04/21/2024 20:00	04/21/2024 21:45	04/21/2024 20:00	04/21/2024 22:46	24-2348		The appearance point was a single manhole, (EMWD manhole number 16741) on Creag Avenue. 	33.74276	-117.10623	Manhole			13000	The spill was contained in an approximately 150-foot low-lying area along Creag Avenue adjacent to the manhole where the SSO originated from. Most of the spill was contained on the paved road surface with the remaining spill going onto a dirt area adjacent to the Creag Avenue.	N						12800	Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		The spill was contained in an approximately 150-foot low-lying area along Creag Avenue adjacent to the manhole where the SSO originated from. Most of the spill was contained on the paved road surface with the remaining spill going onto a dirt area adjacent to the Creag Avenue	N									04/21/2024 22:15	EMWD has conducted overflow training with visual aids to represent SSO flows from manholes. Operator also have visual aid charts in there vehicles. The operator that responded to this SSO has 10-years of visual estimation experience. Recovery volume is based on amount of spill material going into the vacuum truck.  	Start time estimation was taken from when the spill was called into EMWD. The SSO end time was taken from when the operator cleared the blockage and flow was restored to the line. 	Debris-Rags		Manhole		Polyvinyl Chloride (PVC)		34	Partial closure of Creag Avenue while repairs and cleanup where taking place. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		EMWD restored flow to the line by removing the blockage. The vacuum truck was used to recover the spill material. After the spill material was recovered the site was washed down using water and sweeping utilizing the vacuum truck to recover the washdown water. 	Repaired Facilities or Replaced Defect		Repair manhole odor eliminator and clear debris in the line. 	None. 	04/22/2024 00:30	A visual investigation of the line determined that the manhole odor eliminator had fallen into the channel collecting rags causing the stoppage. 	N												N													
2	2SSO10198	Active	Stege SD CS	Stege Sanitary District	894527	1.2	Certified	REX DELIZO	DISTRICT MANAGER		22-APR-24	22-APR-24	Monthly Category 3 Spill	941 Liberty St., El Cerrito, CA 94530	04/15/2024 09:50	04/15/2024 10:00	04/13/2024 00:56				941 Liberty St., El Cerrito, CA 94530	37.91197	-122.30577	Inside Building or Structure			171	SSO backed up inside of building structure.	N						171	Building or Structure		SSO backed up inside of building structure.	Y	37.91197	-122.30577							04/13/2024 08:56	SSO was caused by a surge of debris (leaves, etc.) from a broken storm drain pipe into a sanitary sewer manhole, start and end time was determined by weather history on April 13, 2024.  Area multiplied by depth method was used to determine SSO volume.	SSO was caused by a surge of debris (leaves, etc.) from a broken storm drain pipe into a sanitary sewer manhole, start and end time was determined by weather history on April 13, 2024.  	Debris-General		Manhole		Other (specify below)	brick manhole	74	SSO backed up inside of building structure.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		SSO backed up inside of building structure.	Repaired Facilities or Replaced Defect		Repaired sanitary sewer line and informed City of El Cerrito of broken storm drain.		04/15/2024 11:30	SSO was caused by a surge of debris (leaves, etc.) from a broken storm drain pipe into a sanitary sewer manhole, start time was determined by weather history on April 13, 2024.  		n/a	04/22/2024 14:31														n/a	Repaired sanitary sewer line and informed City of El Cerrito of broken storm drain.	No	Repaired sanitary sewer line and informed City of El Cerrito of broken storm drain.	Repaired sanitary sewer line and informed City of El Cerrito of broken storm drain.  Repair completed 4/22/24.	n/a	n/a	n/a	n/a	
6B	6SSO11136	Active	City Of Lancaster CS	Lancaster City	894530	1.2	Certified	Benjamin Stewart	Public Works: Utility Services Supervisor		07-MAY-24	07-MAY-24	Monthly Category 3 Spill	Avenue I and 17th St East - Townhomes	04/15/2024 12:48	04/15/2024 14:26	04/15/2024 13:54				Sewage discharging from city owned manhole (34.70384 - -118.09831), and 3 adjacent private lateral/clean outs. It traveled an open top concrete swale (close to 17th St East) to the curb and gutter on Avenue I  Westbound for 1224 Liner Feet, close to 15th St East	34.70384	-118.09831	Manhole; Upper Lateral (Private)			461	Sewage discharging from city owned manhole, and 1 adjacent private lateral/clean outs. It traveled an open top concrete swale (close to 17th St East) to the curb and gutter on Avenue I  Westbound for 1224 Liner Feet, close to 15th St East	N						461	Street/Curb and Gutter (2 3)		Curb and Gutter on the South Side of Avenue I and 15th St East (34.70384 -118.09831)	Y	34.70384	118.09831							04/15/2024 15:28	 Volume was calculated by measuring the effected area. Length x Width x Depth. 461 Gallons were spilled and 467 gallons were recovered. 	 Volume was calculated by measuring the effected area. Length x Width x Depth. 461 Gallons were spilled and 467 gallons were recovered. 	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		36	Minor sewage and minimal debris onsite prior to the swale	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Restored Flow	 All 467 spilled gallons and collected material was dumped at  LA County Sanitation District 14 Treatment Plant	 The blockage was cleared at 3:28pm by our single jetter-cleaning truck using a rotating nozzle (Warthog). Then  we had our Single jetter pressure wash the area while staff  broomed the curb and gutter. All the collected material was captured with our combination truck (Vactor) at the secondary containment  location on Avenue I. All affected areas of the spill were thoroughly cleaned and sanitized using ⿿ Sani-solutions⿝ at a 10% dilution rate. All contents were disposed of at  LA County Sanitation District 14 Treatment Plant. FOG outreach was done with door hanger to all resident.	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause		The frequency of this mainline has been  increased to 90 day cleaning schedule. We had the CCTV crew inspect the condition of the sewer mainline and no damaged pipe found.  We also had our F.O.G. Inspector   perform outreach by going door to door placing doorhangers. These  doorhangers show the do's and don'ts  of want can be flushed into the sewer line. This area has also been added to our monthly enhanced maintenance area.		04/16/2024 16:00	      On Monday 4/15/2024 the city was notified of a sewer spill at 45110 17th street east at 2:26pm  within the condo complex. Speaking with a resident, he stated the spill began at approximately 1:54pm. I saw a sewer manhole discharging sewage. A primary and secondary containment was put downstream in curb and gutter. The blockage was cleared at 3:28pm and consisted of a build up of rags and grease by our single jetter-cleaning truck using a rotating nozzle (Warthog). The result of our calculations has the spill at approximately 467 total gallons spilled and fully recovered. Then  we had our Single jetter pressure wash the area while staff  broomed the curb and gutter. All affected areas of the spill were thoroughly cleaned and sanitized using ⿿ Sani-solutions⿝ at a 10% dilution rate.  All collected material was dumped at  LA County Sanitation District 14 Treatment Plant. Contacted Health Department at 3:53pm.  The next our CCTV Crew performed mainline assessment of the complex.		We had the CCTV crew inspect the condition of the sewer mainline	04/15/2024 14:29														F.O.G. Inspector perform outreach by going door to door placing doorhangers	The frequency of this mainline has been  increased to 90 day cleaning schedule. This area has also been added to our monthly enhanced maintenance area.	 increased to 90 day cleaning schedule	N/A	We had the CCTV crew inspect the condition of the sewer mainline and no damaged pipe found.	N/A	Our sewer cleaning database was updated to show the new 90 day cleaning schedule.	This area has also been added to our monthly enhanced maintenance area.	We had the CCTV crew inspect the condition of the sewer mainline	
2	2SSO10104	Active	Ccsf - San Francisco Airport CS	CCSF - San Francisco Airport	894534	1.1	Certified	Jennifer Acton	Director of Maintenance		24-APR-24	24-APR-24	Monthly Category 3 Spill	Gates D2 & D3 Sewage Ejector Pump Station	03/22/2024 20:40	03/22/2024 20:42	03/22/2024 20:40				Spill originated from a sewage ejector pump station located within the airfield operations area under boarding area D overhang, between aircraft Gates D2 & D3.  	37.61724	-122.38196	Pump Station			151	Spill originated from a sewage ejector pump station located within the airfield operations area under boarding area D overhang, between aircraft Gates D2 & D3.   Spill flowed onto the paved surface under the boarding area overhang between the aircraft gates and towards one nearby storm drain catch basin.	Y	A small volume of the sewage entered a nearby storm drain catch basin but did not flow downstream.  The volume of sewage was contained at the bottom of the catch basin and below the outlet pipe.   Sewage and water mixture was pumped out by plumbers using a vactor truck.	6				151	Drainage Conveyance System; Paved Surface		Sewage spilled from the sewage ejector pump station, flowed onto the paved surface, and affected one nearby storm drain catch basin.	Y	37.61714	-122.3823	37.61724	-122.38198	37.61716	-122.3819			03/22/2024 21:00	Spill volume estimation of the impacted paved surface was calculated (Area/Volume) using field measurements collected by the responding Spill Team member.  The volume that impacted the storm drain catch basin was estimated by responding Spill Team member using eyeball estimation. 	Responding Airport Spill Team member interviewed responding parties on scene to determine estimated spill start and stop times.	Debris-General; Debris-Rags		Pump Station - Mechanical		Other (specify below)	Unknown.  Failure occurred within the pump system.	0	Spill overflowed from the sewage ejector pump station and flowed on the paved surface around the pump and affected one nearby storm drain catch basin.  Persons walking in the area used alternated walking route around the spill area until spill was cleaned.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Airport Duty Manager, Airfield Operations, Airport Fire Department, Airport Plumbing, Airport Mechanical Maintenance, and Airport Spill Team responded to the spill incident.  Airport Fire Dept. applied absorbent material and spill booms to help contain spill and protect storm drain catch basin.  Airport Facilities team removed the blockage from the ejector pump and restored flow to the sanitary system.  Airport scrubbing contractor cleaned the affected paved surface.  Airport Plumbers used the vactor truck to pump out and clean the affected storm drain catch basin.  Waste absorbent material was removed and disposed.  All wastewater from cleaning and pumping was returned to the Airport's sanitary sewer system for processing.  	Other (specify below)	Sewage ejector pump inspected and pump run in reverse to remove blockage caused by general debris and rags. Flow restored to the sanitary sewer system. 	Sewage ejector pump inspected and pump run in reverse to remove blockage caused by general debris and rags. Flow restored to the sanitary sewer system.   		03/22/2024 23:30	Investigation by Airport Facilities department determined the cause of the overflow/spill was due to a mechanical failure of the sewage ejector pump.  General debris and rags caused the pump failure and the pump to stop working, resulting in sewage overflowing from the pump station.  After the debris was cleared, flow was restored to the sanitary sewer system.		NA	03/22/2024 21:30														NA	NA	NA	NA	Pump station and pump were inspected.  Pump motor was reversed to remove debris and return flow to sanitary sewer system.	NA	NA	NA	NA	
4	4SSO10420	Active	Rancho Palos Verdes City CS	Rancho Palos Verdes City	894539	1.2	Certified	May Hong	Civil Engineer	23-APR-24	07-MAY-24	07-MAY-24	Category 2 Spill	1545 (Locklenna Lane and Verde Ridge Road, Rancho Palos Verdes)	04/18/2024 16:45	04/18/2024 19:00	04/18/2024 16:00	04/18/2024 17:40	24-2299		CSMD Map Sheet No. 1545 Mainline break from Manhole 91 to 92 due to earth movement.  MMS No. 8739840	33.76441	118.39697	Gravity Mainline; Other Sewer System Structure	A mainline break from Manholes 91 to 92 due to earth movement. 		1001	Spill flowed onto a dry creek bed (Agua Armaga Canyon). 	N						0	Unpaved Surface		Spill flowed onto a dry creek bed (Agua Armaga Canyon). 	N									04/19/2024 00:15	Visual or eyeball method.	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops.	Natural Disaster (specify below); Pipe Structural Problem/Failure - Controls	Line break from manhole 91 to 92 due to earth movement. 	Other (specify below)	Line break.	Vitrified Clay		58	N/A	N	Other Enforcement Agency Notified; Restored Flow		A mainline break from manholes 91 to 92 due to earth movement.  The contractor arrived on the scene stopped the spill and started to repair the broken line. All required agencies were promptly notified. 	Other (specify below)	Inspect and monitor the condition. The contractor made emergency repairs to the broken mainline, they will be scheduled to make permanent repairs at a later date.   The mainline will be inspected via CCTV to inspect repairs.	The mainline will be inspected via CCTV to inspect repairs.	N/A	04/19/2024 01:00	The mainline will be inspected via CCTV to inspect repairs.	N												N													
4	4SSO10496	Active	Trancas Zone of the CSMD CS	Los Angeles Cnty DPW	894552	1.3	Certified	Eric Liu	Civil Engineer		02-MAY-24	02-MAY-24	Category 1 Spill	1029-0015 (Trancas Canyon Road / Principio Drive, Malibu)	03/22/2024 11:35	03/22/2024 12:00	03/22/2024 09:00	03/26/2024 16:30	24-1797		CSMD Map Sheet No. 1029 Overflowing Manhole No. 15 MMS No. 8717777	34.03279	118.84287	Manhole			1000	Upon arrival, manhole 15 was not overflowing; however, there was evaporating water on the curb side and blockage had resolved itself. The estimation of wastewater impacted the storm drain is based on a photo (taken at 11:15 AM) by constituent Steve Hotchkiss. According to Mr. Hotchkiss initial overflow (very small amount of seepage) was noticed at 9:00 AM (20 to 30 min.) and the second larger overflow noted at 11:15 AM for (20 to 30 min.). See photos attached.  	Y				Based on the constituent's photo, the sewage might have reached to Private Drain 0306 - Line G - Trancas Cyn, Private Drain 0306 - Line G - Trancas Cyn connected to the natural drainage system, which ultimately flows into Zuma Canyon - Frontal Pacific Ocean. 	600	0	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Based on the constituent's photo, the sewage might have reached to Private Drain 0306 - Line G - Trancas Cyn, Private Drain 0306 - Line G - Trancas Cyn connected to the natural drainage system, which ultimately flows into Zuma Canyon - Frontal Pacific Ocean. 	N									03/22/2024 11:45	CWEA SSCSC Manhole Overflow Gauge	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops. 	Debris-General; Other (specify below)	Pipe Structural Problem/Failure	Gravity Mainline		Vitrified Clay		63	Based on the constituent's photo, the sewage might have reached to Private Drain 0306 - Line G - Trancas Cyn, Private Drain 0306 - Line G - Trancas Cyn connected to the natural drainage system, which ultimately flows into Zuma Canyon - Frontal Pacific Ocean. 	N	Other (specify below); Other Enforcement Agency Notified; Restored Flow	Hydo jet equipment was used to break down the mainline debris blockage.	Crew arrived on site, there were no signs of an overflow. The crew spoke with the constituent, who showed a picture of the manhole overflowing. The estimated spill volume and final spill location are based on the picture and duration of the overflow. Hydo jet equipment was used to break down the mainline debris blockage, and we notified all required agencies. 	Other (specify below)	We will inspect sewer using CCTV to determine if adjustment is needed with the existing preventive maintenance periodic. 	We will inspect sewer using CCTV to determine if adjustment is needed with the existing preventive maintenance periodic. 	Currently, mainline is added to preventive maintenance 60-days Rodder periodic (Trancas Canyon Road MH No. 8 to 15). 	03/22/2024 14:30	We will inspect sewer using CCTV to determine if adjustment is needed with the existing preventive maintenance periodic. 	Y	To establish no existing structural damage to the mainline. 	06/24/2024 14:20	Zuma Canyon - Frontal Pacific Ocean	Ocean		Zuma Canyon - Frontal Pacific Ocean	N/A	Other (specify below)	N/A	N/A	0	N	N											To establish no existing structural damage to the mainline. 	
2	2SSO18112	Active	Castlewood CS	Alameda Cnty Public Works Agency	894578	1.2	Certified	Phillip Linarte	Senior Civil Engineer		31-MAY-24	31-MAY-24	Monthly Category 3 Spill	Castlewood Drive	04/11/2024 12:00	04/11/2024 12:00	04/11/2024 12:00				Manhole #25: Coordinates: 37�38'02 N 121�53'41 W Manhole overflow estimated at 135 gal  Manhole #42: Coordinates: 37�37'55 N 121�53'28 W Manhole overflow estimated at 90 gal	37.63395	-121.89475	Manhole			225	Manhole #25: Coordinates: 37�38'02 N 121�53'41 W Manhole overflow estimated at 135 gal  Manhole #42: Coordinates: 37�37'55 N 121�53'28 W Manhole overflow estimated at 90 gal  Spill happened at manhole locations and was on pavement. Did not flow into drainage conveyance system	N						205	Paved Surface		Manhole #25: Coordinates: 37�38'02 N 121�53'41 W Manhole overflow estimated at 135 gal  Manhole #42: Coordinates: 37�37'55 N 121�53'28 W Manhole overflow estimated at 90 gal  Spill event occurred at the manholes listed above. did not flow into drainage conveyance system	Y	37.63395	-121.89475							04/11/2024 12:00	Spill volumes were estimated by 'vent hole method'.	Spill volumes were estimated by 'vent hole method'.	Debris-General		Manhole		Vitrified Clay		25	No impact of the spill. spill was contained to pavement and did not lead to drainage conveyance system.  Blockage was encountered and broken up using jetting equipment. Once blockage was broken up, the pipe was free flowing and spill ceased. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		The spill location was a County Service Area (CSA) to which there are contractors to perform water and sewer maintenance and capital improvements.   Contractor was onsite to encounter spill and contacted Bess Test Lab was contracted to perform the spill cleanup. In addition to the cleanup, a blockage in the line was encountered and the contractor had jetted the line to break up the blockage. Material from said blockage was not recovered but blockage was removed and pipe was free flowing. 	Repaired Facilities or Replaced Defect		Pipes in the immediate location of spill were jetted to remove and breakup blockage that created spill.  Contractor is responsible for maintenance activities and a review of the maintenance cycle will be performed.  New Contractor will be performing this service starting July of 2024 and the spill/maintenance procedures will be reviewed with this contractor as well.		04/11/2024 20:06	at time of spill, a blockage was encountered in the pipe and jetting was performed at this location and segments of pipe downstream to break up the blockage.   Blockage material was not recovered and was not identified.  once pipe was jetted it was free flowing and spill was addressed. 		Blockage in pipe was encountered at time of spill. Blockage was broken up with jetting truck and lines downstream were also jetted to continue blockage breakup.  Blockage material was not recovered.  maintenance activities are performed regularly to address this issue and blockage of the facilities are infrequent.	05/31/2024 09:28														N/A	A review of the maintenance procedures to be performed but this is a rare occurrence and there is a maintenance plan in place.	A review of the maintenance procedures to be performed but this is a rare occurrence and there is a maintenance plan in place.	No planned rehabilitation or replacement of pipe/manholes at this location are planned.	Blockage at this location was addressed and pipe is free flowing. no additional work to assets necessary at this time	No capital improvements planned at this time	Jetting of the immediate location and segments of pipe downstream was performed at time of spill.  Maintenance procedures for the sanitary sewer system at this location are in place and will continue to be performed to avoid this issue.	No spill response activities modifications planned at this time.  Spill was encountered early in the day and responded to immediately by contractor. Spill was contained and blockage in pipe, creating spill, was addressed and pipe was free flowing	Blockage in pipe was encountered at time of spill. Blockage was broken up with jetting truck and lines downstream were also jetted to continue blockage breakup.  Blockage material was not recovered.  maintenance activities are performed regularly to address this issue and blockage of the facilities are infrequent.	
4	4SSO10439	Active	Torrance City CS	Torrance City	894585	1.2	Ready to Certify						Monthly Category 3 Spill	Nadine Circle and Maple Ave.	04/24/2024 09:05	04/24/2024 09:35	04/24/2024 08:50				Pg. 87 Sec. 1 manhole 1	33.817869	-118.344283	Manhole			100	Spill was minor, flow reached street but was captured by vactor truck, area was washed down and flow restored.	N						100	Paved Surface		Spill was contained to small alley and street.	Y	33.817869	-118.344283							04/24/2024 09:36	Visual BMP	visual BMP	Root Intrusion		Gravity Mainline		Vitrified Clay		50	contained to small alley. Minimal sewage to clean up	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		Spill was small, was not an issue other than cleanup what was on the alley.	Inspected Sewer Using CCTV to Determine Cause		Will monitor with CCTV, clean as needed.		04/25/2024 14:47	root intrusion, many trees near sewer main. Low flow main as it was at the start of sewer main.		6 months	04/25/2024 14:57														n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a	6 months	
4	4SSO10439	Active	Torrance City CS	Torrance City	894586	1.3	Ready to Certify						Monthly Category 3 Spill	Nadine Circle and Maple Ave.	04/24/2024 09:05	04/24/2024 09:35	04/24/2024 08:50				Pg. 87 Sec. 1 manhole 1	33.817869	-118.344283	Manhole			100	Spill was minor, flow reached street but was captured by vactor truck, area was washed down and flow restored.	N						100	Paved Surface		Spill was contained to small alley and street.		33.817869	-118.344283							04/24/2024 09:36	Visual BMP	visual BMP	Root Intrusion		Gravity Mainline		Vitrified Clay		50	contained to small alley. Minimal sewage to clean up	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		Spill was small, was not an issue other than cleanup what was on the alley.	Inspected Sewer Using CCTV to Determine Cause		Will monitor with CCTV, clean as needed.		04/25/2024 14:47	root intrusion, many trees near sewer main. Low flow main as it was at the start of sewer main.		6 months	04/25/2024 14:57														n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a	6 months	
4	4SSO10439	Active	Torrance City CS	Torrance City	894587	1.2	Certified	Chris Kuebert	Sanitation Services Manager		25-APR-24	25-APR-24	Monthly Category 3 Spill	Nadine Circle and Maple Ave.	04/24/2024 09:05	04/24/2024 09:35	04/24/2024 08:50				Pg. 87 Sec. 1 manhole 1	33.817869	-118.344283	Manhole			100	Spill was minor, flow reached street but was captured by vactor truck, area was washed down and flow restored.	N						100	Paved Surface		Spill was contained to small alley and street.		33.817869	-118.344283							04/24/2024 09:36	Visual BMP	visual BMP	Root Intrusion		Gravity Mainline		Vitrified Clay		50	contained to small alley. Minimal sewage to clean up	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		Spill was small, was not an issue other than cleanup what was on the alley.	Inspected Sewer Using CCTV to Determine Cause		Will monitor with CCTV, clean as needed.		04/25/2024 14:47	root intrusion, many trees near sewer main. Low flow main as it was at the start of sewer main.		6 months	04/25/2024 14:57														n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a	6 months	
4	4SSO10436	Active	South Pasadena City CS	South Pasadena City	894590	1.2	Certified	Harold Theodore Gerber	Public Works Director	30-APR-24	15-MAY-24	15-MAY-24	Category 1 Spill	Fremont Avenue - approximately 100 ft South of Huntington Drive	04/25/2024 09:25	04/25/2024 09:25	04/24/2024 14:24	04/25/2024 09:35	24-2419	15-MAY-24	The spill originated from an underground City owned sewer collection pipe where the sewer pipe crosses an underground City owned storm drain collection pipe.  The appearance of the spill closest to the failure point was in a City owned storm drain manhole located on the west side of Fremont Avenue, across from 1911 Fremont Avenue, South Pasadena, CA.	34.10356	-118.15247	Other (specify below)	City Storm Drain Pipe		10775	There was no spillage of sewage to the surface and the spill boundary was limited.  The sewage that exited the sewer line entered the storm drain pipeline several feet away.  More detail to be provided in updated spill report.	Y	The spill discharged into the City of South Pasadena storm drain system, which drains into the City of Alhambra storm drain system, and thereafter drains to the LA County Public Works storm drain system - and onto the Laguna Channel.  More detail to be provided in updated spill report.	950	0	The spill discharged into the City of South Pasadena storm drain system, which drains into the City of Alhambra storm drain system, and thereafter drains to the LA County Public Works storm drain system - and onto the Laguna Channel.  More detail to be provided in updated spill report.	9825	950	Drainage Conveyance System that discharges to surface water		The spill occurred by wastewater exiting a damaged underground 8-inch diameter sewer vitrified clay pipe (VCP) that was lined with cured-in-place-pipe (CIPP) and entering a damaged underground 24-inch diameter corrugated steel storm drainpipe.  The two pipes cross each other in the ground at an angle.  Wastewater exited the damaged sewer pipeline and entered the damaged storm drain pipeline within a few feet of each other.  The spill was underground, did not discharge at grade, and was contained in the small underground area where the two pipes cross, until it entered the storm drain and presumably traveled downstream to a surface water body [See Figures 1 and 1a in attached report supplement for origin and destination].  No sewer manholes overflowed during the event.	Y	34.10367	-118.1525	34.10356	-118.15232	34.09417	-118.14849			04/25/2024 13:55	See attached report supplement section on Timeline & Volume Estimation, including Table with Calculations. 	See attached report supplement section on Timeline & Volume Estimation, including Table with Calculations. 	Damage by Others Not Related to Collection System Construction/Maintenance		Gravity Mainline		Vitrified Clay	Vitrified Clay Pipe (VCP) that was lined with cured-in-place-pipe (CIPP) around 2015.	9	The impact of the spill was the temporary uncontrolled discharge of wastewater to the storm drain system, and presumably the Luguna Channel downstream water body and Los Angeles River.  It is City staff�s understanding that the relatively low spill discharge rate, volume, and long distance from the surface water body, did not require a beach closure. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		The broken clay pipe (VCP) and sheared CIPP liner are shown in Figure 8 of the attached.  After photos were collected to document the damage, the existing pipeline was cut and removed, and a new VCP section was installed, fully repairing the sewer system damage (see Figure 9).  The excavation was temporarily left without backfill to facilitate further documentation related to seeking potential cost recovery.  The excavation was secured with steel plates.  Storm drain repair will commence separately during and along with the backfill effort.  During the repair and in the subsequent days following, the City of South Pasadena cleaned and flushed the storm drain system, discharging remaining waste to the sewer system.   The system was cleaned from the incident location to the south border of South Pasadena at Fair Oaks Avenue and Alhambra Road, and from this location through the city of Alhambra downstream to the connection with LAC Public Works storm drain BI 0221 on Cedar Street.	Repaired Facilities or Replaced Defect		Efforts are underway to establish responsible parties to potentially initiate cost recovery for the damage.  On May 8th, a training session was held with all relevant City staff to refresh the team on Sewer System Management Plan (SSMP) roles, as well as spill notification and mitigation processes. 	No further milestones.  Spill response and sewer repair are complete.	04/29/2024 17:00	Upon commencing the excavation to determine the extent of damage and necessary repair of the sewer system pipeline and adjacent storm drain pipeline, City staff and the assisting contractor found that a void was present approximately two feet below grade (see Figure 4 in attached report supplement).  Found within the void was fiber optic cables/conduits that had been installed via directional drilling. Once the 24-inch storm drain was exposed in the excavation, it was found to have a hole on each side, as though it was drilled through from southwest to northeast, with corresponding penetrations (see Figures 5 & 6).  The trench was expanded to the north to find the location of the sewer break.  Excavation proceeded carefully using a vactor and hand digging to uncover the location of the sewer pipeline break.  Once the sewer break was exposed (see Figure 7), it was apparent that the damage was caused by the adjacent fiber optic cable/conduit that was installed via directional drilling.	N			Los Angeles River	River		Based on information reviewed with Los Angeles County Public Works, it is understood that the uncaptured spill volume, once entering the City of South Pasadena storm drain system, then passed through the City of Alhambra storm drain system, and onto the Los Angeles County (LAC) Public Works storm drain system BI 0221.  Please see Figures 1 and 1a for maps in the attached supplemental report that depict the origin and presumed destination of the spill wastewater.  BI 0221 becomes BI 0065 Unit 1 Line B, following the I-710, then discharging into the Dorchester Avenue Channel / Luguna Channel.  From here, the system continues to drain south until it connects to the Los Angeles River, which terminates in Long Beach, California.	No information reported.	Other (specify below)	It is City staff�s understanding that the relatively low spill discharge rate, volume, and long distance from the surface water body, did not require a beach closure. 	City of Long Beach Department of Health and Human Services 	0	N	N												
2	2SSO10095	Active	Benicia City CS	Benicia City	894594	1.2	Certified	John Gant Jr	Field Utilities and Streets Supervisor	26-APR-24	01-MAY-24	01-MAY-24	Category 2 Spill	471 Sandy Way	04/24/2024 13:00	04/24/2024 13:00	04/24/2024 07:00		-		SSO was from a manhole behind the listed address.	38.06141	-122.16052	Manhole			1000	Spill exited a manhole and stayed within the soil around the manhole	N						1000	Unpaved Surface		Spill exited from manhole and onto the unpaved surface surrounding the manhole.	Y	38.06144	-122.16049							04/24/2024 13:00	Estimation based on average household water usage, and number of houses on the line. The line was not a complete blockage, but a partial, so overflow was not continuous. Overflowed only when usage overwhelmed available capacity.	Based on the time of received call regarding an odor complaint.	Root Intrusion		Manhole		Polyvinyl Chloride (PVC)		40	N/A	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		Scraped and removed debris and top layer of soil.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		CCTV sewer main and inspected manhole. Removed roots from the manhole that caused the blockage and treated manhole with Root X. Will continue routine inspections of manhole.	N/A	04/25/2024 15:00	Received an odor complaint and after locating a sewer manhole at the back of yard of a private residence, crews found a manhole that had overflowed. The manhole was not surcharged at the time. After CCTVing, it was determined that there was a partial blockage at the exit from the manhole that limited it's capacity, and may have caused overflows at peak usage times.	N												N													
2	2SSO10099	Active	Burlingame City CS	Burlingame City PWD	894595	1.2	Certified	RICHARD HORNE	Streets, Storm Drain and Sewer Division Manager		26-APR-24	26-APR-24	Monthly Category 3 Spill	1461 Cotez	03/10/2024 13:33	03/10/2024 13:44	03/10/2024 14:32				The spill originated from a private cleanout in the driveway of 1361 Cortez.	37.58556	-122.37285	Backflow Prevention Device; Upper Lateral (Private)			54	The spill traveled down the private driveway, over the sidewalk, and into the curb and gutter area in front of 1361 Cortez.	N		54				54	Paved Surface; Street/Curb and Gutter (2 3)		The spill was contained in front of the residence in a low spot of the gutter area.	Y	37.58723	-122.37577							03/10/2024 16:16	The spill volume was calculated using the Area/Volume of a triangle method as well as the eyeball method.	The spill was caused by a surcharge of the main line while staff was hand rodding to relieve the blockage and was self discovered by staff.	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		100	The spill was contained to the driveway, sidewalk, and curb and gutter area in front of 1461 Cortez with minimal impact.	N	Cleaned Up (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	Wash down, vacuum, and disinfect area. returned to sanitary sewer.	Response activities included relieving the main line blockage with hand rods, jetting the line, and cleanup. Pictures of the spill were taken by staff. The spill was self discovered and self contained to the area in front of 1461 Cortez.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		The mainline sewer was hand rodded to relieve then jetted to properly clean the pipe segment. The line was CCTV inspected on 3/28/24. After review, the line was placed on a quarterly preventative maintenance list on 4/1/24 to prevent any reoccurrence of the spill.		04/01/2024 10:53	Pipe segment inspected on 3/28/24 noted roots and FOG.		N/A	04/01/2024 10:53														N/A	Pipe segment added to quarterly preventative maintenance list	Quarterly	N/A	CCTV inspect on 3/28/24	N/A	CMMS Cartegraph Work Order# 25568	No modifications to spill response	N/A	
8	8SSO10560	Active	Riverside City CS	Riverside City	894597	1.3	Certified	Kevin Street	Wastewater Operations Manager	26-APR-24	29-APR-24	29-APR-24	Category 1 Spill	Riverside City 	04/11/2024 12:30	04/11/2024 06:07	06/29/2023 10:38	04/26/2024 11:05	24-2443		Lateral found leaking into storm drain. Discovered during storm drain reconnaissance effort. Lateral's installation through storm drain pipe previously unknown.	33.96626	117.04664	Lower Lateral (Public)			7200	See Attached	Y	See Attached	0	7200	It was determined the on 6/29/23 there was bacteria in the storm drain system as part of City MS4 bacteria reconnaissance effort. Video inspection on the storm drain on 4/11/24 discovered a sewer lateral was leaking into the storm drain. Repair was made the same day the lateral was discovered. Wastewater division, and City, previously unaware that laterals were installed such that they were partially protruding into the storm drain pipe. Lateral was repaired with one continuous PVC section which was sleeved in a larger diameter PVC pipe to avoid 1. Joints which could potentially leak, and 2. Reduce the likelihood of damage to or spillage from the repaired lateral. See attached photos.	7200	0	Drainage Conveyance System that discharges to surface water		Storm drain outfall.  Coordinates provided below. 	Y	33.968043	-117.410109							04/11/2024 15:15	City Regulatory Compliance staff searched images from SSO estimates and figures used for household gallons/day water use. Staining on the interior storm pipe walls suggest there was never really any major volume discharge, only consistent minimal seepage, following the contour of the pipe until it hit the flow line. For the affected residence, the City estimated an average daily wastewater flow of 250 gal/day. Collections staff filled the lateral with clean water, prior to repair, and estimated a leak volume percentage of approximately 10% from one of the joints. Applying this percentage to the estimated 250 gallons per day discharge yielded an estimated spill rate of 25 gallons per day. 	During its routine 5-week outfall monitoring program for 2023 (June 29), the local flood control agency identified elevated bacteria at a City outfall. City MS4 compliance staff then began a progressive investigatory effort, first inspecting catch basins and looking for easily identifiable sources of bacteria to the storm drain system. The progression of those efforts led to a video inspection of the storm system where the protruding and leaking lateral was found.  The spill was stopped upon detection and because of repair. 	Pipe Structural Problem/Failure - Installation		Lower Lateral		Vitrified Clay		40	Unknown.  Elevated bacteria levels detected from routine sampling. 	N	Restored Flow		City immediately stopped flow from the subject property. Received authorization from Purchasing Division for an emergency purchase order and immediately enlisted a construction contractor for a same-day repair.	Repaired Facilities or Replaced Defect		Stopped leak, repaired lateral. 	No schedule, repair affected immediately upon discovery. 	04/11/2024 20:00	During its routine 5-week outfall monitoring program for 2023 (June 29), the local flood control agency identified elevated bacteria at a City outfall. City MS4 compliance staff then began a progressive investigatory effort, first inspecting catch basins and looking for easily identifiable sources of bacteria to the storm drain system. The progression of those efforts led to a video inspection of the storm system where the protruding and leaking lateral was found.  The spill was stopped upon detection and because of repair. 	N			Santa Ana River	River		River	None	Other (specify below)	Outfall drainage course inaccessible to due to dense vegetation overgrowth. Staff attempted to collect samples from River following elevated bacteria results on multiple occasions, but there was insufficient flow in the area of the outfall (ca. June/July 2023) to collect a sample. 	N/A	0	N	N												
8	8SSO10560	Active	Riverside City CS	Riverside City	894599	1.2	Certified	Kevin Street	Wastewater Operations Manager	26-APR-24	29-APR-24	29-APR-24	Category 1 Spill	Riverside City 	04/12/2024 10:26	04/12/2024 11:00	06/29/2023 11:58	04/26/2024 11:56	24-2444		Lateral was leaking into storm drain. 4832 Rubidoux Ave.	33.96592	117.40591	Lower Lateral (Public)			7225	See Attached	Y	See Attached	0	7225	It was determined the on 6/29/23 there was bacteria in the storm drain system. Video inspection on the storm drain on 4/12/24 discovered a sewer lateral was leaking into the storm drain. Repairs was made that day on the lateral. See Attachment	7225	0	Drainage Conveyance System that discharges to surface water		Storm drain outfall. Coordinates provided below. 	Y	33.968043	-117.47027							04/12/2024 10:26	City Regulatory Compliance staff searched images from SSO estimates and figures used for household gallons/day water use. Staining on the interior storm pipe walls suggest there was never really any major volume discharge, only consistent minimal seepage, following the contour of the pipe until it hit the flow line. For the affected residence, the City estimated an average daily wastewater flow of 250 gal/day. Collections staff filled the lateral with clean water, prior to repair, and estimated a leak volume percentage of approximately 10% from one of the joints. Applying this percentage to the estimated 250 gallons per day discharge yielded an estimated spill rate of 25 gallons per day. 	During its routine 5-week outfall monitoring program for 2023 (June 29), the local flood control agency identified elevated bacteria at a City outfall. City MS4 compliance staff then began a progressive investigatory effort, first inspecting catch basins and looking for easily identifiable sources of bacteria to the storm drain system. The progression of those efforts led to a video inspection of the storm system where the protruding and leaking lateral was found.  The spill was stopped upon detection and because of repair.   Using the above data it is estimated that a maximum 7,225 gal spilled (289 days @ 25 gpd). 	Pipe Structural Problem/Failure - Installation		Lower Lateral		Vitrified Clay		40	Unknown. Elevated bacteria levels detected from routine sampling. 	N	Restored Flow		City immediately stopped flow from the subject property. Received authorization from Purchasing Division for an emergency purchase order and immediately enlisted a construction contractor for a same-day repair.	Repaired Facilities or Replaced Defect		Stopped leak, repaired lateral. 	No schedule, repair implemented immediately upon detection. 	04/12/2024 16:00	During its routine 5-week outfall monitoring program for 2023 (June 29), the local flood control agency identified elevated bacteria at a City outfall. City MS4 compliance staff then began a progressive investigatory effort, first inspecting catch basins and looking for easily identifiable sources of bacteria to the storm drain system. The progression of those efforts led to a video inspection of the storm system where the protruding and leaking lateral was found.  The spill was stopped upon detection and because of repair.   Using the above data it is estimated that a maximum 7,225 gal spilled (289 days @ 25 gpd). 	N			Santa Ana River	River		River	None	Other (specify below)	Outfall drainage course inaccessible to due to dense vegetation overgrowth. Staff attempted to collect samples from River following elevated bacteria results on multiple occasions, but there was insufficient flow in the area of the outfall (ca. June/July 2023) to collect a sample.	N/A	0	N	N												
4	4SSO10421	Active	Redondo Beach City CS	Redondo Beach City	894605	1.2	Certified	Geraldine Trivedi	Civil Engineer		26-APR-24	26-APR-24	Monthly Category 3 Spill	2213 Carnegie Lane	03/18/2024 09:15	03/18/2024 09:41	03/18/2024 09:13				Spill appearance point was located in street gutter.  Photos attached.	33.871216	-118.37158	Inside Building or Structure; Lateral Clean Out (Private)			475	Photos and detailed map attached. 	Y	SSO reached the street gutter and stormdrain system, entire SSO was recovered and returned into the sanitary sewer system.	475				475	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Detailed map is attached.	N									03/18/2024 10:32	The methodology used to estimate the spill volume were actual field measurements of spill and field measurement of the sump pump's hold multiplied by 5 discharge events. 	The methodology used to estimate the spill volume were actual field measurements of spill and field measurement of the sump pump's hold multiplied by 5 discharge events. 	Root Intrusion		Gravity Mainline		Vitrified Clay		60	The spill resulted from root intrusion into the City's gravity mainline.  The spill was released into a private property and flowed out of the private property's clean out into the street gutter and stormdrain system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		The City's Vactor truck was used to clean up all spill volume and return it into the sanitary sewer system.	Added Sewer to Preventive Maintenance Program		Location will be added into the City's root treatment ongoing maintenance schedule.		03/18/2024 13:30	Root intrusion into gravity mainline was determined to be the cause.		N/A	03/18/2024 13:30														N/A	Location will be added into the City's root treatment ongoing maintenance schedule.	Location will be added into the City's root treatment ongoing maintenance schedule.	N/A	N/A	N/A	N/A	Location will be added into the City's root treatment ongoing maintenance schedule.	N/A	
5S	5SSO11066	Active	Tracy CS	Tracy City	894608	1.2	Certified	Wayne C. Bogart	Superintendent		29-APR-24	29-APR-24	Monthly Category 3 Spill	90 Portola Way	04/02/2024 09:30	04/02/2024 10:00	04/02/2024 09:00				Sewage came out of the manhole in front of 75 Portola Way ran west to the DI in front of 55 Portola Way	37.75591	-121.42497	Manhole			225	Sewage ran west down gutter to DI in front of 55 Portola Way	Y	Sewage went into DI in front of 55 Portola Way	225				225	Drainage Conveyance System		55 Portola Way	Y	37.75588	-121.42512							04/02/2024 10:30	Calculations were done by the picture chart time noticed and by fellow worker and how much liquid was in VACCON when dumped	 We figured the time started as a fellow worker called it in. When he went by earlier it wasn't spilling So we added that plus Picture Chart	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		60	No impact Sewage went from gutter to DI where it was recovered	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		Used VACCON to first restore flow second to was down then jet storm drain line	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Will check line weekly for grease backup		04/02/2024 13:00	Cause was definitely grease/ Sewer line is fed by apartments and also duplex's We have reached out and reminded people about grease down the drains		None needed at this time 	04/02/2024 13:00														N/A	Add to hot spot list. 	Yes to weekly	Main is in good shape none needed at this time	CCTV'd line it looks great	N/A at this time	Added to weekly Hot Spot list  	We responded quickly none needed at this time	None needed at this time 	
2	2SSO10179	Active	San Jose City CS	San Jose City	894609	1.2	Certified	Ben Nguyen	Senior Engineer		30-APR-24	30-APR-24	Monthly Category 3 Spill	3390 Valley Square Ln San Jose CA 95117	03/30/2024 10:53	03/30/2024 11:18	03/30/2024 10:15				The spill appearance point was a sanitary manhole near 3390 Valley Square Lane.	37.30211	-121.9574	Manhole			186	The spill discharged from the sanitary manhole, traveled along curb and gutter and reached on of the catch basin.  Crew contained the spill on the surface.  Crew found a dry MH  downstream storm drainage system.  Crew set up to flush and removed the water from MS4. 	Y	The spill discharged from the cleanout and traveled along the street curb/gutter.  From the curb gutter, the sewage traveled along the street and reached a nearby storm inlet.  This storm inlet is connected to the City of San Jose's municipal storm sewer system. The sewage traveled within the storm system to a storm manhole on Runnymede drive and Yuba avenue where it was all recovered. 	137				186	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		The spill discharged from a manhole and traveled along the street curb/gutter.  From the curb gutter, the sewage traveled along the street and reached a nearby storm inlet.  This storm inlet is connected to the City of San Jose's municipal storm sewer system. The sewage traveled within the storm system to a storm manhole on Runnymede drive and Yuba avenue where it was all recovered.	Y	37.30211	-121.9574	37.303128932129	-121.95759050212					03/30/2024 11:40	The spill volume was calculated by using measurements provided by the maintenance staff of the spill boundary. The first responder documented pictures of the spill area and provided calculations taken during the response. Crew used tape measure and measuring wheel to measure the spill area. We calculated the on-land spill using geometric shape volume calculation methods and the MS4 volume was calculated using pipe volume estimation methods. The total estimated spill volume and information from the reporting party were used to assume a reasonable start time. 	The start time was estimated by observing how far the water traveled as well combined with the information that the reporting party provided. The end time was determined by when the crew popped the plug and observed the overflow ending.	Root Intrusion		Gravity Mainline		Ductile Iron		60	No impact to the CSJ waterways as spill was contained within MS4. No lasting impact to street/curb and gutter where overflow occurred due to maintenance staff cleaning. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Upon arrival, maintenance staff sandbagged the storm inlet to prevent further intrusion of waste water into MS4. Afterwards, the maintenance staff cleared the plug in the sanitary sewer gravity main in order to stop the overflow and proceeded to clean the spill using the two-truck combo method, one flushed and the other vacuumed. Next, the crew washed down the affected area and recovered the induced water. All spill was eventually recovered and returned to the sanitary sewer system. 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Add segments to Root Control Plan	The sewer line was immediately CCTV'd following the overflow event in order to determine cause.   Further corrective actions the city has planned for this segment include: 1. The gravity main will be added to the on-going root control project plan in order to mitigate and prevent anymore root related spills from occurring.  2. The segment will be videoed again in 6 months in order to determine whether the current cleaning cycle will need to be revised. 		03/30/2024 11:40	While the Responding Crew cleared the blockage in the plugged sanitary mainline, the Crew documented their findings. A pipe basket was used to collect the roots that was removed while clearing the blockage within the mainline. After conducting a follow up CCTV of the sanitary mainline pipe, there were no other major O&M observation or structural defects that may have contributed to the blockage. Therefore, it was determined that the cause was roots. 		All investigation efforts concluded on 4/29/2024	04/29/2024 14:30														NA	The City has planned the following O & M modifications to prevent any repeat of the spill event: 1. Re-video the plugged sanitary sewer segment along with the upstream and downstream segments in 6 months. 2. Add segments to Root Control plan. 	NA	NA	Problem sanitary sewer asset was video inspected after the SSO on 3/30/2024. No major structural defects were found but there were traces of roots despite the cleaning. 	NA	NA	NA	All investigation efforts concluded on 4/29/2024	
9	9SSO10691	Active	City of San Clemente CS	San Clemente City	894613	1.6	Certified	sergio lopez	collections chief 		06-MAY-24	06-MAY-24	Monthly Category 3 Spill	3919 Calle Ariana	04/24/2024 07:30	04/29/2024 07:40	04/29/2024 07:30				Asphalt over six inch force main, small amount of water was coming up at a crack in the road 	33.39579	-117.59853	Force Main	n/a		50	water at crack 	N	n/a					50	Paved Surface		spill did not spread 	Y	33.39575	-117.59853							04/24/2024 07:45	there was no active sewer spill just the water marks on the road but there was also irrigation systems on at the time that added to the size of the surface area  	we only can go off the water stain when the crews arrived 	Collection System Maintenance Failure (specify below)		Force Main		Other (specify below)	ACP	50	NONE 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below)		Jack hammered up the asphalt and vacuumed up the dirt to expose the pipe material was disposed of at our yard 	Plan Rehabilitation or Replacement of Sewer		replaced 16'section of pipe 		04/24/2024 09:30	Small crack on the side of the pipe that was next to a repair clamp from previous break 		N/A	04/24/2024 10:22														N/A	N/A	N/A	in the bid process to install new force main 	cut out old acp and installed new plastic pipe 	N/A	N/A	N/A	N/A	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	894615	1.6	Certified	Ameal McLaurin	Sewer Supervisor 2		06-MAY-24	06-MAY-24	Monthly Category 3 Spill	10 Dorothy Place, Oakland Ca	04/21/2024 15:08	04/21/2024 16:30	04/22/2024 16:27				Sewage was seeping out of the ground; the leak was over the sewer mainline on easement.	37.85707	-122.23051	Other (specify below)	Buried lamp-hole on easement.		262	Sewage was seeping out of the ground; the leak was over the sewer mainline on easement on unpaved surface, the sewage soaked into the soil.	N						0	Unpaved Surface		Sewage was seeping out of the ground; the leak was over the sewer mainline on easement on unpaved surface, the sewage soaked into the soil.										04/22/2024 16:17	25'L x 3'W x 2.5'D x 7.48-gal x .1875 = 262 gallons	Start time was based on eyewitness account. The end time was based on responding sewer crews restoring the flow in the mainline.	Root Intrusion; Vandalism (specify below)	Rocks and bricks blocked the mainline, combined with root intrusion.	Gravity Mainline		Other (specify below)	Corrugated metal pipe (CMP)	100	Sewage was seeping out of the ground; the leak was over the sewer mainline on easement on unpaved surface, the sewage soaked into the soil.	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow	Raked and removed solid spoils from the ground.	Raked and removed solid spoils from the ground.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		Mainline has been added to 6-month high frequency hydro flushing maintenance program, work order number 1522458.		04/30/2024 15:30	Sewer crews found the mainline to had been vandalized with bricks and rocks. Staff also found root intrusion in the mainline that increase the likelihood of this root in combination with the brick and rocks to had been the potential cause of the overflow.		Main line is in the process of being hand rodded to remove the existing roots in the mainline.	04/30/2024 15:30														N/A	Mainline has been added to 6-month high frequency hydro flushing maintenance program, work order number 1522458.	Mainline has been added to 6-month high frequency hydro flushing maintenance program, work order number 1522458.	CIP work order number 1522459.	CCTV report number 1521852 showed more roots to be removed.	CIP work order number 1522459.	CCTV report number 1521852. Mainline has been added to 6-month high frequency hydro flushing maintenance program, work order number 1522458. CIP work order number 1522459.	Mainline has been added to 6-month high frequency hydro flushing maintenance program, work order number 1522458. CIP work order number 1522459.	Main line is in the process of being hand rodded to remove the existing roots in the mainline.	
8	8SSO10617	Active	Eastern Municipal Water District CS	Eastern Municipal Water District	894618	1.4	Certified	Ken Tagney	Director of Water Reclamation	29-APR-24	02-MAY-24	02-MAY-24	Category 2 Spill	23750 Alessandro Blvd., Moreno Velley	04/27/2024 12:38	04/27/2024 13:50	04/27/2024 12:38	04/27/2024 16:06	24-2465		The spill originated from a manhole on the westbound side of Alessandro Boulevard between White�s Bikes and �R� Burger. 	33.91735	-117.24751	Manhole			1120	The SSO flowed northwest on Alessandro Boulevard until it reached the curb getter at which point if flowed west along the curb getter until reaching a storm drain inlet on the east side of the entrance to Alessandro Plaza. According to Riverside Count Flood Control maps the flow from that storm drain inlet flows south then southeast in an underground conveyance pipe until it drains into Heacock Channel around the intersection of Brodiaea Avenue and Heacock Street. Heacock Channel was dry when inspected by EMWD crews tracking the SSO. 	Y	Storm drain inlet on the east side of the enterence of Alessandro Plaza. 	250	870			250	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		The spill flowed for the origination point to a storm drain inlet which flowed through underground piping to Heacock channel. Heacock channel is a concrete channel that runs adjacent to Heacock street in the city of Moreno Valley. The channel was dry on the day of the SSO. 	Y	33.9134	-117.24393							04/27/2024 14:30	EMWD field crew have had training using a manhole flow simulator as well as the use of field flow charts to estimate SSO flow rates. Once the flow rate was determined the equation of time multiplied by spill rate is used to estimate spill volume. 	EMWD worker in the area saw the spill and called it in. 	Debris-Rags; Fats, Oil and Grease (FOG)		Manhole		Vitrified Clay		34	EMWD had to close one lane on the westbound side of Alessandro Boulevard while cleanup and SSO corrective actions took place. 	N	Cleaned Up (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Removed blockage restoring flow to the pipe, cleaned up by washing down the affected area utilizing vacuum truck to recover washdown water and debris. 	Other (specify below)	Removed blockage and hydro jet line. 	EMWD crews hydro jetted the line in this area to insure there are no other FOG build ups in the line. 	None. 	04/27/2024 17:40	Spill was caused by build up of rags and grease. This build up caused the line to back up and overflow. 	Y	Investigating how the grease was introduced into our sanitary sewer system. Location of the sewer main is near a retail plaza not near a densely populated area.	05/03/2024 17:00										N												Investigating how the grease was introduced into our sanitary sewer system. Location of the sewer main is near a retail plaza not near a densely populated area.	
5R	5SSO10799	Active	Oroville CS	Oroville City 	894620	1.2	Certified	Frederick Mayo	Public Works Director 	01-MAY-24	24-MAY-24	24-MAY-24	Category 1 Spill	2890 Olive Highway 	04/29/2024 13:27	04/29/2024 13:27	04/29/2024 13:26	04/29/2024 14:42	24-2482	01-MAY-24	Sewage overflowed from a pick hole in manhole lid 101C, spreading across part of Executive Parkway's entrance and extending 237 feet along the east side of Olive Highway on an unimproved grassy shoulder. City sewer operator Rick Seals spotted the SSO at 1:25 PM and promptly informed his manager, Jamie McGuire. McGuire dispatched the hydrovac truck and sewer crew to address the spill at the 2800 Block of Olive Highway. They arrived at 1:38 PM and immediately initiated containment efforts with sandbags, shovels, and vacuum equipment around the drainage inlet. Utilizing the hydrovac truck, flow was restored by 1:49 PM. The crew, employing a clamshell tool, removed debris, including t-shirts, gravel, and an unknown industrial material causing the blockage. The spill was contained to the area around manhole 101C, the roadway's unimproved shoulder, and the storm drain inlet east of Executive Parkway. All sewage was retrieved by the hydrovac truck, confirmed through inspection of DI	39.50314	-121.53975	Gravity Mainline; Manhole			533	The sewage spill was contained within the lawn area surrounding manhole 101C, the unimproved shoulder of the roadway, and a section of the Executive Parkway intersection. Although sewage did enter the drainage inlet directly east of manhole 101C, it did not convey sewage to the downstream Dry Creek. Out of an abundance of caution, Fred Mayo, City of Oroville LRO, contacted the state OES at 14:42, notifying them of a potential spill into the adjacent creek and requested a control number. At that time, it was unknown if sewage made its way to the creek or the volume size of the spill.	Y	The sewage spill was contained within the lawn area surrounding manhole 101C, the unimproved shoulder of the roadway, and a section of the Executive Parkway intersection. Although sewage did enter the drainage inlet directly east of manhole 101C, it did not convey sewage to the downstream Dry Creek. Out of an abundance of caution Fred Mayo city of Oroville LRO contacted  the state OES at 14:30 notifying them of a potential spill into the adjacent creek and requested a control number at which time it was unknown if sewage made its way to the creek or the volume size of the creek acting on the information proved it entered the storm drain. 	533	0	N/A sewage was not conveyed to creek. Sewage never escaped storm drain system.  	0	533	Drainage Conveyance System; Paved Surface; Unpaved Surface		Sewage overflowed from a pick hole in manhole lid 101C, spreading across part of Executive Parkway's entrance and extending 237 feet along the east side of Olive Highway on an unimproved grassy shoulder. City sewer operator Rick Seals spotted the SSO at 1:25 PM and promptly informed his manager, Jamie McGuire. McGuire dispatched the hydrovac truck and sewer crew to address the spill at the 2800 Block of Olive Highway. They arrived at 1:38 PM and immediately initiated containment efforts with sandbags, shovels, and vacuum equipment around the drainage inlet. Utilizing the hydrovac truck, flow was restored by 1:49 PM. The crew, employing a clamshell tool, removed debris, including t-shirts, gravel, and an unknown industrial material causing the blockage. The spill was contained to the area around manhole 101C, the roadway's unimproved shoulder, and the storm drain inlet east of Executive Parkway. All sewage was retrieved by the hydrovac truck, confirmed through inspection of DI	Y	39.50326	-121.53989							04/29/2024 13:42	We estimated the volume of the spill by measuring its width, length, depth, and estimated flow rate. This spill was not reported but was discovered by our sewer crew as they drove by on their daily route. We estimate the start time to be within minutes of their discovery due to the high visibility of the location, vehicle traffic, and nearby businesses.	We estimated the volume of the spill by measuring its width, length, depth, and flow rate. The spill was not reported but was discovered by our sewer crew during their daily route. We estimate the start time to be within minutes of their discovery due to the high visibility of the location, vehicle traffic, and nearby businesses. We used traditional measurements to calculate the volume estimates. The start and end times of the SSO were documented firsthand by staff on the scene. As stated, the SSO was discovered by our crews while they were en route to perform routine maintenance on our system.	Debris from Construction; Other (specify below); Vandalism (specify below)	T-shirts, gravel rags and gas station hose	Gravity Mainline; Manhole		Polyvinyl Chloride (PVC)		14	The impact of the spill was limited to a grassy, unimproved shoulder adjacent to Olive Hwy with minimal impact on the storm drain system. All affected areas were cleaned and vacuumed to remove all solids, debris, and wastewater from the area	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Upon first report, the SSO was close to entering the storm drain, which discharges into nearby Dry Creek. We reported to OES that the sewage had reached the creek and that we had an active SSO. Within minutes of discovery, containment efforts began to protect and dam around the storm drain inlet, using sandbags and spill kits. Additionally, dirt dikes were constructed to control the flow direction.  The hydro-vacuum truck arrived on-site within several minutes and restored the flow quickly after removing T-shirts, rags, and unknown tubing, which appeared to be from a gas station pump. These materials caused the SSO. Once flow was restored, all efforts focused on recovering all materials from the storm drain, confirming no sewage had reached Dry Creek, and starting the cleanup efforts on the unimproved shoulder of Olive Hwy.  The cleanup efforts included hydro vacuuming, raking, and shoveling. All remaining waste was washed down and fully recovered by the vacuum truck. 	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance		We have added this site to our hot spot list and will check it monthly for the next 12 months before revisiting its placement on the list. The general area has had new construction ongoing for the last few years, and as the construction is nearing completion, this was potentially an isolated event.	NA	04/29/2024 13:42	The investigation of the incident determined that the spill was directly caused by construction materials, including T-shirts, rags, gravel, and a hose from a gas station pump. Although we could not pinpoint the exact location where these materials were introduced into the system, multiple construction sites are located upstream from the blockage. The majority of the construction is near completion. We will continue monthly inspections of the manhole and consider adding a flow sensor to this site to prevent another SSO.	N	NA		NA	Other (specify below)	Storm drain 	NA	NA	Other (specify below)	NA	NA	0	N	N											NA	
2	2SSO10212	Active	Vallejo Sfcd CS	Vallejo Flood & Wastewater District (formerly Vallejo San & Flood Control District)	894622	1.1	Certified	Justin Keating	Director of Field Operations		29-APR-24	29-APR-24	Monthly Category 3 Spill	1581 Magazine Street	03/25/2024 12:36	03/25/2024 12:50	03/25/2024 11:10				Sanitary sewer manhole in street, under parked car.	38.08107	-122.22291	Manhole			78	Curb and gutter	Y	Catch basin in gutter (Most of spill was in gutter)	78				78	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Spill traveled down curb and gutter, into a storm drain catch basin.	Y	38.08297	-122.22459							03/25/2024 12:50	Measured volume of existing spill water/wet stain in curb, gutter, catch basin Length x Width x Depth 	Interviewed reporting party. Water from spill was noticed coming from under parked car at 11:00. Reporting party saw again and reported to the District at 12:36. Manhole was not currently spilling at 12:50 when Operator arrived on scene. This is why the Operator arrival time and spill end times are the same.	Fats, Oil and Grease (FOG); Pipe Structural Problem/Failure - Controls	Follow up CCTV inspection found sag in gravity mainline that would have contributed to FOG buildup.	Gravity Mainline		Vitrified Clay		43	Spill traveled down curb and gutter, into a storm drain catch basin.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	Plugged downstream storm drain catch basin	Plugged downstream storm drain catch basin, washed down curb/gutter, storm drain catch basin. Hydro jetted and vacuum cleaned downstream storm drain system.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		Performed follow-up CCTV inspection Added preventative maintenance schedule to gravity mainline Sewer mainline spot repair planned to remove sag. 		03/25/2024 14:15	Sag in gravity mainline allowed the accumulation of FOG to develop.		None	03/27/2024 16:30														NA	Preventative maintenance schedule Mainline spot repair to permanently fix issue.	NA	Yes. Mainline spot repair	Yes. CCTV inspection Mainline spot repair	No	See attached	None	None	
5S	5SSO11433	Active	City of Stockton MUD CS	Stockton City MUD	894643	1.1	Certified	Dagmara Saini	Program Manager III		21-MAY-24	21-MAY-24	Monthly Category 3 Spill	1687 Ida Av	04/16/2024 08:43	04/16/2024 09:00	04/16/2024 08:30				1687 Ida Av- From Sanitary MH	37.92846	-121.26065	Manhole			200	See Attachment tab	Y	Contained in Storm MH at Eleventh St & Bellview St	200				200	Drainage Conveyance System		Contained in Storm MH at Eleventh St & Bellview St										04/16/2024 10:00	We used a spill volume calculator based on the measurements of the spill captured in the curb and gutter. And any areas impacted by the spill.  The spill start and end time are based on the time the spill was reported and the time we were able to stop the spill.  The reporting phone call was anonymous and there were no other witnesses.  	The spill start and end time are based on the time the spill was reported and the time we were able to stop the spill.  	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		75	 None	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Used Hydro truck to clean and vacuum the impacted area of the spill.	Inspected Sewer Using CCTV to Determine Cause		CCTV the main line and implement any repairs or adjustments to a PM (if applicable) that are needed.		04/16/2024 10:00	CCTV the main line and was confirmed that the spill was caused by grease 		CCTV the main line and implement any repairs or adjustments to a PM (if applicable) that are needed.	04/22/2024 15:46														None	None	CCTV the main line and implement any repairs or adjustments to a PM (if applicable) that are needed.	None	CCTV the main line and implement any repairs or adjustments to a PM (if applicable) that are needed.	None	None	Used Hydro truck to clean and vacuum the impacted area of the spill CCTV the main line and implement any repairs or adjustments to a PM (if applicable) that are needed.	CCTV the main line and implement any repairs or adjustments to a PM (if applicable) that are needed.	
5S	5SSO11084	Active	White Slough Water Poll Con Pu CS	Lodi City	894647	1.1	Certified	Andrew Richle	Utilities Superintendent 		30-APR-24	30-APR-24	Monthly Category 3 Spill	232 Hilborn Street 	03/02/2024 10:38	03/02/2024 11:48	03/02/2024 10:15				Please see attached. Pre and post spill pictures.	38.12916	-121.26819	Lateral Clean Out (Private)			416	See attached photos. Are of spill was approximately 5 feet wide by 67 feet long and 2 inches deep. 	N						416	Paved Surface		The spill location was a paved alley. Spill was approximately 5 feet wide by 67 feet long and 2 inches deep. Spill did not leave alley and covered the length of two properties. 										03/02/2024 11:59	Spill was approximately 5 feet wide by 67 feet long and 2 inches deep. Photos attached.	Formula: 6 ft. (W) x 67 ft. (L) x 0.166 ft. (H) x 7.48 gal/sqft = 416 gallons	Fats, Oil and Grease (FOG)		Gravity Mainline		Other (specify below)	CIPP	10	No damage to property. No impacts storm system or water way.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	Clean out cap was removed upon arrive. Cap was restored and secured. 	Contained area with cones and vehicles. Ran Vaccon 108 ft and cleared plugged. Line was cleaned of FOG. 	Other (specify below)	Public outreach. Distributed FOG Flyers	Public education and outreach. Distributed FOG Flyers. 		03/02/2024 16:20	Investigation was concluded after it was determined the cause of the spill was due to FOG. Line was cleaned and FOG flyers were distributed. 		N/A	03/02/2024 12:40														N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	
5S	5SSO11084	Active	White Slough Water Poll Con Pu CS	Lodi City	894648	1.1	Certified	Andrew Richle	Utilities Superintendent 		30-APR-24	30-APR-24	Monthly Category 3 Spill	408 Mission St. Lodi CA	03/02/2024 10:38	03/02/2024 11:48	03/02/2024 10:15				See attached photos. Spill originated from private cleanout in driveway and continued over sidewalk and down gutter. 	38.12916	-121.26819	Lateral Clean Out (Private)			93	See attached photos. Spill originated from private cleanout in driveway and continued over sidewalk and down gutter terminating approximately 146 ft from origin. 	N						93	Paved Surface; Street/Curb and Gutter (2 3)		Spill originated from private cleanout in driveway and continued over sidewalk and down gutter terminating approximately 146 ft from origin. 										03/02/2024 11:59	Estimated volume using following formula.  Volume (gallons) = length x width x depth x3.74	Assumption of start time based on spill flow from C/O and total volume observed in the surface (driveway and gutter).	Fats, Oil and Grease (FOG)		Gravity Mainline		Other (specify below)	CIPP	12	Minor impact. Clean up required was minimal. No damage to property. Spill did not reach storm drain or surface water. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Upon arrive crew used dirt berm to contain spill. Coned off area. Vaccon crew restored flow to main. Driveway, sidewalk and gutter was sanitized with simple green, power washed and vacuumed. 	Adjusted Schedule/Method of Preventive Maintenance		Plan to adjust schedule and monitor location. 		03/26/2024 16:40	No further investigation or investigation findings are warranted at this time.  		No further investigation needed. 	03/26/2024 16:40														N/A	N/A		N/A	N/A	N/A	N/A	Upon arrive crew used dirt berm to contain spill. Coned off area. Vaccon crew restored flow to main. Driveway, sidewalk and gutter was sanitized with simple green, power washed and vacuumed. 	No further investigation needed. 	
5S	5SSO11084	Active	White Slough Water Poll Con Pu CS	Lodi City	894649	1.1	Certified	Andrew Richle	Utilities Superintendent 		30-APR-24	30-APR-24	Monthly Category 3 Spill	408 Mission St. Lodi CA	03/28/2024 14:58	03/28/2024 15:09	03/28/2024 14:36				Spill originated at private cleanout. Please see attached pictures. 	38.12916	-121.26819	Lateral Clean Out (Private)			137	Please see attached photos. Spill originated at customer C/O down driveway across sidewalk to gutter. Spill terminated 146 feet in gutter. 	N						137	Street/Curb and Gutter (2 3)		Please see attached photos. Spill originated at customer C/O down driveway across sidewalk to gutter. Spill terminated 146 feet in gutter. 										03/28/2024 15:20	Assumption of spill volume is based on flow existing C/O at time of arrival and the volume contained.  	Gutter volume determined by formula below. 	Fats, Oil and Grease (FOG); Other (specify below)	This spill could have been avioded if downstream main was cleaned and inspected following a spill two days earlier. 	Gravity Mainline; Other (specify below)	Failed to inspect main line downstream with follow up cleaning. 	Other (specify below)	CIPP	12	No damage to property. Minor cleanup required. Spill did not reach storm drain or surface water. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Upon arrival contained flow from reaching storm drain using dirt berm. Vaccon crew vacuumed spill after restoring flow. All spill was returned to sanitary system. 	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below)	Staff conducted through cleaning of district.  	Continue to monitor this area of main for FOG. Further action may be required if excessive FOG occurs again. 		03/26/2024 16:40	N/A		Follow up monitoring will be conducted one month later. 	03/28/2024 16:40														N/A	N/A	Monitor main and adjust schedule if warranted. 	N/A	N/A	N/A	N/A	N/A	Follow up monitoring will be conducted one month later. 	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	894650	1.1	Certified	Kent Vian	Asst. Deputy Director		18-MAY-24	18-MAY-24	Monthly Category 3 Spill	NOT-40201096411 10605 FRANK DANIELS WAY	04/29/2024 18:38	04/29/2024 18:45	04/29/2024 18:55				SPILL ORIGINATED FROM MAHOLE #156 EQ# 10758702	32.91806	-117.07883	Manhole	NOT APPLICABLE	NOT APPLICABLE	405	SEWER DISCHARGE EXITED MANHOLE #156 AND HEADED SOUTH IN CULDE SAC IN FRONT OF 10605 FRANK DANIELS WAY AND INTO A STORM DRAIN WHERE IT AS CAPTURED AND RECOVERED.	N	NOT APPLICABLE	0				375	Paved Surface; Street/Curb and Gutter (2 3)	NOT APPLICABLE	SEWER DISCHARGE EXITED MANHOLE #156 AND HEADED SOUTH IN CULDE SAC IN FRONT OF 10605 FRANK DANIELS WAY AND INTO A STORM DRAIN WHERE IT AS CAPTURED AND RECOVERED.	Y	32.91806	-117.07883							05/01/2024 07:38	VISUAL CALCULATED METHOD/DURATION AND FLOW TO CALCULATE THE SPILL VOLUME AND THE AMOUNT RECOVERED.	START TIMES ESTIMATION WERE ASSUMED WHEN THE CONSUMER CALLED IN AND REPORTED THE SPILL TO THE CITY DISPATCH.	Root Intrusion	NOT APPLICABLE	Manhole	NOT APPLICABLE	Concrete	NOT APPLICABLE	40	IMPACTS OF THE SPILL WERE TO THE STREET, CURB & GUTTER AND STORM DRAIN. THE SEWER WAS WASHED DOWN CAPTURED USING A COMBINATION TRUCK.	Y	Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	NOT APPLICABLE	CREWS CONTAINED THE SPILL UPON ARRIVAL, RELIEVED, AND TRACKED FINAL DESTINATION, CLEANED UP AREA AND STORM DRAIN CCTV MAIN CLEANED TWO SECTIONS UP AND TWO SECTIONS DOWN TO DETERMINE THE CAUSE OF BLOCKAGE.	Inspected Sewer Using CCTV to Determine Cause	NOT APPLICABLE	CREWS CONTAINED THE SPILL UPON ARRIVAL, RELIEVED, AND TRACKED FINAL DESTINATION, CLEANED UP AREA AND STORM DRAIN CCTV MAIN CLEANED TWO SECTIONS UP AND TWO SECTIONS DOWN TO DETERMINE THE CAUSE OF BLOCKAGE.		04/29/2024 20:00	THE CCTV CREWS INSPECTED THE MAIN AND DETERMINED THE CAUSE TO BE ROOTS.		NO	04/29/2024 20:00														NOT APPLICABLE	NOT KNOWN AT THIS TIME	THE MANAGEMENT TEAM WILL HAVE A MEETING TO DISCUSS IF INCREASING THE CLEANING FREQUENCY IS NEEDED TO PREVENT A REOCCURRENCE OF SPILLS.	NOT APPLICABLE	THE CCTV CREWS INSPECTED THE MAIN AND DETERMINED THE CAUSE TO BE ROOTS.	NOT APPICABLE	NOT APPLICABLE	NOT APPLICABLE	NO	
5S	5SSO11433	Active	City of Stockton MUD CS	Stockton City MUD	894658	1.1	Certified	Dagmara Saini	Program Manager III		21-MAY-24	21-MAY-24	Monthly Category 3 Spill	6267 Chesapeake Ci	04/03/2024 09:37	04/03/2024 10:00	04/02/2024 14:00				Photos and descriptions are on the attachments tab  37.99772-121.36401	37.99772	-121.36401	Lateral Clean Out (Private)			231	Photos and descriptions are on the attachments tab 	Y	spill entered a DI in front of property that drains directly into man made lake. 	231				231	Drainage Conveyance System		spill entered DI in front of property that drain   										04/03/2024 10:30	Resident stated that the notice the spill started 4-2-24 at around14:00 and did not notify the city until 4-3-24	Resident stated that the notice the spill started 4-2-24 at around14:00 and did not notify the city until 4-3-24	Debris-General		Lower Lateral		Vitrified Clay		50	None	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Used Hydro truck to clean and vacuum the impacted area of the spill. vacuumed Storm MH 3 times the amount of the determined amount of spill . 	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		Currently we do have a planned repair at this location to prevent any future sewer spills from occurring again 		04/30/2024 15:50	It was determined to repair and replace existing sewer lateral.		Investigation has been completed as of 4-30-24	04/30/2024 13:59														None	Currently we do have a planned repair at this location to prevent any future sewer spills from occurring again 	None	Currently we do have a planned repair at this location to prevent any future sewer spills from occurring again 	CCTV the Sanitary Lateral and implement any repairs or adjustments to a PM (if applicable) that are needed.	None	None	Used Hydro truck to clean and vacuum the impacted area of the spill. CCTV the Sanitary Lateral and implement any repairs or adjustments to a PM (if applicable) that are needed.	Investigation has been completed as of 4-30-24	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	894665	1.2	Certified	David Leamer	Assistant Superintendent	01-MAY-24	09-MAY-24	09-MAY-24	Category 1 Spill	342354	04/26/2024 14:10	04/26/2024 14:24	03/30/2024 12:00	04/26/2024 19:17	24-2458		See Attached Spill map with Photos.	38.35189	-121.4544	Lateral Clean Out (Public); Manhole	Spill occurred at one SacSewer manhole and one SacSewer cleanout.		13529	See Attached Spill Map with Photos	Y	See Attached Spill map with Photos.	2039	0	See Attached Spill map with Photos.	9516	2233	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See attached Spill Map with Photos.	Y	38.519	-121.4547	38.5186	-121.4542	38.5122	-121.444			04/26/2024 15:55	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Root Intrusion		Gravity Mainline		Vitrified Clay		73	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified Sacramento County Water Resources Drainage O&M and Sacramento County Environmental Management Department	See Attached Description of Spill Event	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		See Attached Description of Spill Event.	SacSewer adjusted the preventive maintenance cleaning frequency to 6 months from 24 months.	04/27/2024 03:00	See Attached Description of Spill Event	N			Unnamed tributary to Morrison Creek	Stream/Creek		Concrete-lined channel and stagnant water	No observed impacts to aquatic life	Other (specify below)	No public access impact.	N/A	0	N	N												
2	2SSO10168	Active	Redwood City CS	Redwood City	894670	1.3	Amended	Robin Kim	Public Works Superintendent	01-MAY-24	10-MAY-24	10-MAY-24	Category 2 Spill	Davit & Shell	04/26/2024 08:57	04/26/2024 08:52	05/01/2024 08:56		-		A spill occurred at the northern corner of Davit Lane and Shell Parkway intersection in Redwood City from a damaged force main. See attached photos.	37.535419628452	-122.244268570057	Force Main			1410	The spill was contained to the northern corner of Davit Lane and Shell Parkway. The spill traveled 50 feet to a storm drain inlet located on the same corner, but once a drain blocker mat was put down, the spill traveled northeast along the Shell Parkway gutter another 63 feet and stopped. See attached photos.	Y	The storm drain inlet is located at 37.53548666461219, -122.24414061402024 on the east side of the northern corner of Davit Lane and Shell Parkway. Spill that entered this storm drain inlet was contained in the well. See attached photos.	59	0			59	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		Please see spill affected area in attachments (highlighted in blue)	Y	37.535419628452	-122.244268570057	37.535613472547	-122.243977687207					04/26/2024 11:01	Upstream of the spill location is Sewer Lift Station 10. SCADA records show pump cycle times totaling 23.5 minutes. Using an estimate of 60 gpm, we find total spill volume to be 1,410 gallons, which is in line with the number of loads the vactor equipment had to dispose of.	Spill start time is estimated to the minute based on the City Utility Locator seeing the spill and through phone records of the notification call to City Wastewater staff. Spill end time is based on the last pump cycle (through SCADA records) before repairs were implemented.	Damage by Others Not Related to Collection System Construction/Maintenance		Air Relief Valve (ARV)/ Blow-Off Valve (BOV)		Other (specify below)	Force main is ACP at this location. However the failure occurred on a cast iron valve on the force main. 	53	The spill was contained to a storm drain inlet about 50 feet from the spill origin on Shell Parkway, the curb and gutter of Shell Parkway for about 113 feet, the pedestrian ramp at the north intersection of Davit Lane and Shell Parkway, and grass surrounding the spill origin.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned All Spill to Sanitary Sewer System		Wastewater staff who arrived to the spill location put down a drain mat cover over the storm drain inlet to minimize spill into the storm drain system; the amount of spill was completely contained in the well and later cleaned and vactored out. Spill on surrounding grass, pavement, curb, and gutter was rinsed down thoroughly and vactored out. All of the spill was returned to the sanitary sewer system.	Repaired Facilities or Replaced Defect		An initial repair was performed on the day of the spill, April 26, 2024, to stop the spill. A permanent repair with replacement parts was performed on Tuesday, April 30, 2024. No additional steps are needed to prevent a reoccurrence as this part of the system has been repaired.	Friday, April 26 - spill and initial repair to flange Tuesday, April 30 - replacement flange installed	04/26/2024 13:28	A City Utility Locator opened what he thought to be a manhole right before 8:56am. When opening the cover, part of the valve became damaged and started to leak. He immediately notified City Wastewater staff at 8:57am, and a Wastewater Utility Specialist arrived upstream at Sewer Lift Station 10 at 9:01am as he was already nearby for a different meeting. Other Wastewater staff who were also a few blocks away arrived at 9:04am to the spill origin. The quick arrival to the spill origin and lift station meant staff was able to minimize the amount of spill going into the storm drain inlet, so that the amount of spill that went into the storm drain well was completely contained and did not spread through the storm drain system. 	N												N													
3	3SSO10287	Active	Marina Coast CS	Marina Coast WD	894674	1.2	Certified	Derek Cray	Operations & Maintenance Manager		03-MAY-24	03-MAY-24	Monthly Category 3 Spill	Imjin/Preston Dr	04/25/2024 11:20	04/25/2024 11:38	04/25/2024 11:20				The spill originated from a sewer force main cleanout which was damaged by heavy equipment being used during construction of the city�s road widening project. 	36.66748	-121.77173	Other (specify below)	The appurtenance damaged during construction activities was a maintenance cleanout tapped off of the sewer force main. 		130	The spill exited the force main through the damaged cleanout and headed north. All sewage was contained in the unpaved construction area by the immediate installation of dirt berms. No sewage entered a storm drain at any point. 	N						0	Unpaved Surface		The full spread of the spill was approximately 100ft to the north of the spill appearance point and was all contained within the unpaved construction area.  	Y	36.66764	-121.7715							04/25/2024 11:22	The total spill volume was calculated by first speaking with the contractor who caused the spill to obtain the actual start time. The lift station pump trending was then reviewed to confirm no pumps were in operation during the duration of the spill. We then calculated the length of 8in sewer main from the spill appearance point up to the sewer force main high point, which totaled approximately 100ft. Obtaining this information allowed for the calculation of the approximate spill volume. .785x.666x.666x100ftx7.48= 260.45 gal. Since the cleanout was tapped directly on top of the sewer main the total pipe volume was not lost. Due to the topography, it was determined that approximately half of the volume resulted in the spill. The total spill volume was determined to be 130 gal.	The start time was collected by speaking with the contractor who was onsite and caused the spill. Lift station pump trending was also used to confirm no pumps were in operation at the time of the spill which would have contributed to the spill volume. After obtaining this information it was determined the spill volume was a result of residual sewage contained within the force main. In my investigative conversation with the contractor he stated the duration of the spill lasted approximately two minutes.   	Other (specify below)	Damaged by construction activity.	Force Main; Other (specify below)	Force main cleanout	Polyvinyl Chloride (PVC)		25	All sewage was contained within the unpaved area located inside of the ongoing construction area. Containment was achieved by utilizing dirt berms to limit the spill path which extended approximately 100  north from the spill origin point. 	N	Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below)	Dirt berms were utilized to contain the spill. The lift station was bypassed until repairs were completed.	Spill containment consisted of utilizing dirt berms to limit the spread of the spill. There was no cleanup required due to the dirt absorbing all the liquid.  	Other (specify below)	A meeting has been scheduled with the city and contractor to discuss methods to prevent future spills. 	A meeting with the city and contractor was scheduled to help identify and address the existing issues that are resulting in sewer spills. A plan has been agreed upon which will allow for the force main to be inspected by the Districts cctv unit to help identify the possible location(s) of any other cleanouts along this stretch of main.  		04/25/2024 14:08	The spill was caused by the ongoing construction activity for the city�s road widening project. During the removal of the old curb, damage to the top of an existing cleanout occurred which allow sewage to exit the force main. By utilizing the lift station trend data, it was determined that no pumps were running at the time the damage occurred. 		This spill was a result of construction activity. All District utilities within the construction area were previously identified with paint and flags. 	04/25/2024 14:08														N/A	An inspection plan is currently being scheduled which will allow for an internal inspection of the sewer force main. This is to help identify the possible location of any existing cleanouts on this segment of main which in turn, will help to prevent future spills. 	N/A	N/A. This spill was caused by construction activity and was not a result of system failure.	A permanent repair was made to allow for the station to be placed back in service.	No capital improvement project has currently been identified for this segment of main. 	N/A This spill was a result of construction activity and not system failure. 	N/A	This spill was a result of construction activity. All District utilities within the construction area were previously identified with paint and flags. 	
9	9SSO10707	Active	Trabuco Canyon Water District CS	Trabuco Canyon WD	894682	1.2	Certified	Michael Perea	Assistant General Manager	02-MAY-24	15-JUL-24	15-JUL-24	Category 1 Spill	El Toro & Portola Pkwy	05/01/2024 15:00	05/01/2024 15:10	05/01/2024 14:30	05/01/2024 16:15	24-2524		SSO occurred and appeared at a system valve can on El Toro Road adjacent to District pump station.	33.66028	-117.65134	Other (specify below)	Force main valve can on El Toro Road		6000	SSO extended across the westbound El Toro Road to the gutter into the storm drain and approximately half of the flow spilled into Aliso Creek.	Y	Municipal storm drain to Aliso Creek - The drainage conveyance system drains to Aliso Creek (surface water)	3000	3000	Municipal storm drain to Aliso Creek - The drainage conveyance system drains to Aliso Creek (surface water)	3000	3000	Street/Curb and Gutter (2 3); Surface Water		El Toro Road & Portola Parkway Lat 33.66028 Long -117.65134	Y	33.66028	-117.65134	33.65989	-117.65296					05/01/2024 15:30	Flowrate from valve can and time from spill to time spill contained 100 gpm x 60 min duration = 6000 gallons spilled	Flowrate from valve can and time from spill to time spill contained 100 gpm x 60 min duration = 6000 gallons spilled	Other (specify below)	Natural disaster - Earthquake - Corona 4.3 magnitude	Other (specify below)	Sewer system isolation valve	Ductile Iron		30	1. Sewer spill to surface water (Aliso Creek) via Municipal storm drain system. 2. Impact to afternoon traffic by reducing traffic lanes 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Returned Portion of Spill to Sanitary Sewer System	Contained & captured half of the flow Cleaned up area consistent with District policy and State regulation	Redirected system flow to alternative system  Isolated and captured half of the spill Two onsite vacuum trucks cleaned up the contained area	Other (specify below)	Immediately isolated leak area for system repairs 	Immediately isolated leak area for system repairs 	Immediately isolated leak area for system repairs  Repairs ongoing at this time	05/01/2024 16:30	Undetermined at this time. System repair is underway and ongoing.	Y	To effect sewer system repairs	05/03/2024 12:00	Aliso Creek	Other (specify below)	Surface water - creek	Surface water - creek	None	Other (specify below)	Minimal impact during clean up	Orange County Health Care Agency	0	N	N											To effect sewer system repairs	
2	2SSO10228	Active	Fair Oaks SMD	San Mateo County DPW	894695	1.2	Certified	Mark Chow	Principal Civil Engineer		30-MAY-24	30-MAY-24	Monthly Category 3 Spill	820 18th Ave (FOSMD)	04/30/2024 09:14	04/30/2024 09:37	04/30/2024 07:30				The spill originated in the manhole located in the intersection of 18th Ave and 17th Ave in Redwood City with coordinates 37.47565 and -122.190632.	37.47565	-122.190632	Manhole			82	The spill was contained in the gutter on the 800 block of 18th Ave.	N						82	Paved Surface; Street/Curb and Gutter (2 3)		The spill came out of a manhole at the intersection of 18th Ave and 17th Ave in Redwood City. The spill ran in the gutter along the curb on 18th Ave and stopped in front of 832 18th Ave. It did not enter a storm drain system. The length of the spill was around 117 feet, the average width of the spill was 1.5 feet, and the average depth of 0.75 inches.	Y	37.476196	-122.18827							04/30/2024 09:37	Spill volume estimation was calculated using the measured volume method. The volume of the spill was calculated based on field measurements.	Our sewer supervisor received a call from a resident who noticed the active spill while walking their dog around 9 am. Our sewer crew arrived at the site at 9:37 am and noticed there was no active spill occurring. Our sewer crew conducted interviews with the residents and the earliest time the spill was noticed was at 8 am. There was no spill the night before. Per our procedure, we subtract 30 minutes from the earliest observed spill time, which would make the spill start time at 7:30 am. The spill end time was determined to be 9:37 am because the spill was not active when the crew arrived and was not active the entire time they were there. 	Debris from Lateral; Root Intrusion		Gravity Mainline		Vitrified Clay		94	The spill was cleaned up and did not impact any waterways.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Upon arrival, there was no active spill coming out of the manhole. The spill was contained in concrete and asphalt paved surfaces and was recovered using vacuum truck. The affected surfaces were cleaned and rinsed with clean water. All rinse water was recovered and returned to the sewer system using vacuum truck.	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		The sewer main at the location of root intrusion was repaired using pipe patch.		04/30/2024 10:28	CCTV inspection of the sewer main found a root ball as the cause of the spill. The sewer main at the location of root intrusion was repaired using pipe patch.		No ongoing investigation as the cause of the spill has been determined and the issue has been resolved.	04/30/2024 10:28														Not applicable.	The sewer main at the location of root intrusion was repaired using pipe patch.	Adjustment of preventive maintenance was not necessary as the sewer main was repaired.	The sewer main at the location of root intrusion was repaired using pipe patch.	The sewer main at the location of root intrusion was repaired using pipe patch.	The sewer main at the location of root intrusion was repaired using pipe patch.	Spot repair was completed on 5/1/24 which was the day following the spill event. Repair work order is saved in CMMS.	Field staff will take clearer photos of spill start and end locations.	No ongoing investigation as the cause of the spill has been determined and the issue has been resolved.	
5S	5SSO10865	Active	Angels Camp CS	Angels City	894709	1.2	Certified	Dave Richard	City Engineer � Water/Wastewater		06-MAY-24	06-MAY-24	Category 2 Spill	280 Live Oak Dr & Stockton Rd	04/11/2024 08:08	04/11/2024 08:20	04/11/2024 07:30	04/11/2024 12:08	21-2143		Coord - see below, spill occurred from MH #A-5	38.075859	-120.564244	Manhole			1500	See attached	N						300	Unpaved Surface	n/a	Open dirt ditch to open field	Y	38.075859	-120.564244							04/11/2024 08:40	Visual	Visual	Root Intrusion	n/a	Manhole	n/a	Polyvinyl Chloride (PVC)	n/a	30	Drained to open field, no impact	N	Cleaned Up (specify below)	n/a	Hydro/vac, rake/shovel used to clean area and disinfection applied	Adjusted Schedule/Method of Preventive Maintenance	n/a	More frequent inspections	Sewer rehabilitation project scheduled for 2025	04/11/2024 12:55	Visual inspection of area, manhole, and pipe.  Sewer line will be scheduled for CCTV inspection	N	n/a											N												n/a	
8	8SSO10583	Active	La Habra City CS	La Habra City	894711	1.3	Certified	Brian Jones	Utilities Manager		14-MAY-24	14-MAY-24	Monthly Category 3 Spill	Cypress and Industry	05/02/2024 10:33	05/02/2024 10:45	05/02/2024 10:28				Spill appeared at manhole F80017	33.91852	-117.94381	Manhole			60	From sewer manhole at Cypress and Industry.  Local plumbing company was collecting overflow from curb and gutter at the time of City's arrival.	N						60	Street/Curb and Gutter (2 3)		Spill went to curb and gutter where it was collected by a local plumbing company.	N									05/02/2024 10:50	Length of curb impacted x depth x distance from curb face.	Assumes SSO occurred approximately 10 minutes before staff arrival based upon communications with private plumbing company.	Other (specify below)	Protruding sewer lateral liner	Manhole		Vitrified Clay		65	Impacted the curb and gutter where it was collected.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Spill was contained by private plumbing company and returned to City's sewer system.	Inspected Sewer Using CCTV to Determine Cause		Cut protruding lateral		05/02/2024 15:50	CCTV of sewer main, identified protruding sewer lateral liner.  Liner was removed with chain flail.		None	05/06/2024 11:46														NA	NA	NA	NA	Cut protruding lateral	NA	NA	NA	None	
5S	5SSO11433	Active	City of Stockton MUD CS	Stockton City MUD	894712	1.1	Certified	Dagmara Saini	Program Manager III		20-MAY-24	20-MAY-24	Monthly Category 3 Spill	1036 N. Hunter St	11/29/2023 16:20	11/29/2023 15:00	11/29/2023 14:00				1036 N Hunter St, is a single family residence located in Stockton CA. The spill originated from the private cleanout located in the driveway in front of the residence	37.96358	-121.29111	Lateral Clean Out (Private)			66	The spill discharged from the private cleanout located at 1036 N Hunter St and entered into the gutter, coming to a stop in front of both 1026, and 1046 N hunter St.	N						66	Paved Surface; Street/Curb and Gutter (2 3)		The spill discharged from the private cleanout located at 1036 N Hunter St and entered into the gutter, coming to a stop in front of both 1026, and 1046 N hunter St.										11/29/2023 15:30	 Used time when we were notified via dispatch of a potential spill occurring and used the assumptions of 12.5 gph. Per SFR. or 8.75 gph for multiplex.	Used measurements of the affected area to determine the spill quantity and transferred those measurements to the spill formula worksheet to determine the area of the spill.	Debris-General		Gravity Mainline		Vitrified Clay		114	None	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Used Hydro truck to clean and vacuum the impacted area of the spill.	Inspected Sewer Using CCTV to Determine Cause		 CCTV the main line and implement any repairs or adjustments to a PM (if applicable) that are needed.		11/29/2023 15:30	CCTV the main line and was confirmed that the spill was caused by debris due to unknown cause of build up.		CCTV the main line and implement any repairs or adjustments to a PM (if applicable) that are needed.	05/09/2024 15:01														None	CCTV the Sanitary Lateral and implement any repairs or adjustments to a PM (if applicable) that are needed.	None needed	None planned	Not applicable	None needed	Not applicable	None needed	CCTV the main line and implement any repairs or adjustments to a PM (if applicable) that are needed.	
5S	5SSO11433	Active	City of Stockton MUD CS	Stockton City MUD	894713	1.1	Certified	Dagmara Saini	Program Manager III		20-MAY-24	20-MAY-24	Monthly Category 3 Spill	2233 Turnpike Rd	12/08/2023 14:35	12/08/2023 13:45	11/29/2023 13:30				Spill originated from the private clean out located in the driveway at 2233 Turnpike Rd, Stockton, Ca	37.92622	-121.29317	Lateral Clean Out (Private)			57	The spill discharged from the clean out at 2233 Turnpike Rd and spilled across the sidewalk, into the gutter, and came to rest in the sump of the catch basin near 2205 Turnpike Rd	Y	The catch basin located in front of 2205 Turnpike Rd is where the spill was contained.	1				57	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		The spill discharged from the clean out at 2233 Turnpike Rd and spilled across the sidewalk, into the gutter, and came to rest in the sump of the catch basin near 2205 Turnpike Rd										12/08/2023 14:00	 Used time when we were notified via dispatch of a potential spill occurring and used the assumptions of 12.5 gph. Per SFR. or 8.75 gph for multiplex.	 Used measurements of the affected area to determine the spill quantity and transferred those measurements to the spill formula worksheet to determine the area of the spill.	Debris from Lateral		Lower Lateral		Vitrified Clay		35	None	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Used Hydro truck to clean and vacuum the impacted area of the spill.	Inspected Sewer Using CCTV to Determine Cause		Ran cable to clear lateral and discussed with customer about flushing feminine hygiene and wipes down the toilet.		12/08/2023 14:40	CCTV of the lower lateral and it was determined that heavy use of sanitary wipes built up, causing the spill.		Not needed	12/08/2023 15:52														None	CCTV the Sanitary Lateral and implement any repairs or adjustments to a PM (if applicable) that are needed.	None	None	 CCTV the Sanitary Lateral and implement any repairs or adjustments to a PM (if applicable) that are needed.	None	Not applicable	None	Not needed	
5S	5SSO11433	Active	City of Stockton MUD CS	Stockton City MUD	894714	1.1	Certified	Dagmara Saini	Program Manager III		20-MAY-24	20-MAY-24	Monthly Category 3 Spill	821 N American St	03/06/2024 12:40	03/06/2024 13:00	03/06/2024 12:20				Spill came out of Sanitary LH in front of 821 N American St	37.96213	-121.28582	Other Sewer System Structure	Sanitary Lamphole		252	Descriptions of photos on attachments tab 	N						252	Street/Curb and Gutter (2 3)		Spill contained in gutter on the American St and Poplar St side of location 										03/06/2024 13:40	We used a spill volume calculator based on the measurements of the spill captured in the curb and gutter. And any areas impacted by the spill.	The spill start and end time are based on the time the spill was reported and the time we were able to stop the spill	Debris-General		Gravity Mainline		Vitrified Clay		100	None	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Used Hydro truck to clean and vacuum the impacted area of the spill.	Inspected Sewer Using CCTV to Determine Cause		CCTV the main line and implement any repairs or adjustments to a PM (if applicable) that are needed.		03/06/2024 15:00	CCTV the main line and was confirmed that the spill was caused by debris  PM modified from Bi-annual PM to a quarterly PM.		completed	03/11/2024 10:10														none	none	CCTV the main line and implement any repairs or adjustments to a PM (if applicable) that are needed. has been added to a quarterly PM.	None	none	none	none	none	completed	
3	3SSO10265	Active	El Estero CS	Santa Barbara City PWD	894720	1.1	Certified	Esteban Zambrano	WWC Superintendent 		08-MAY-24	08-MAY-24	Monthly Category 3 Spill	1307 N. Salsipuedes 	04/02/2024 21:48	04/02/2024 22:58	04/02/2024 18:00				The city's contractor left a sewer plug in the sewer system while installing a wye connection at 1308 N. Salsipuedes.   First SSO appearance point at 1307 N. Salsipuedes basement.  Second SSO appearance point from city's recycle truck used to vacuum the upstream manhole when responding to the SSO. Operator error while operating the cleaning recycle truck.    	34.43078	-119.69946	Inside Building or Structure; Other (specify below)	Recycle truck	Recycle truck	127	The city contractor left a sewer plug in the sewer system while installing a wye at 1308 N. Salsipuedes. SSO discharge at 1307 N. Salsipuedes basement from a lateral.  SSO discharge from the city's recycle truck used to vacuum the upstream manhole. Operator error in operating the recycle cleaning truck.  	N						50	Building or Structure; Other (specify below); Street/Curb and Gutter (2 3)	1307 N. Salsipuedes basement	1307 N. Salsipuedes basement and curb and gutter at 1300 N. Salsipuedes St. 	Y	34.43078	-119.69946	34.43109	-119.69958					04/03/2024 10:45	Sewer Spill Estimation Guide by Orange County and CWEA training. WWC staff used dimensions to calculate SSO. 	Reviewed SSO volume and data collected by staff to estimate spill start time. The sewer plug that caused the SSO was removed by the city contractor on 4/3/2024 at 10:45 am.	Operator Error (specify below); Other (specify below)	The city contractor left a sewer plug in the sewer system while installing a wye. Staff discharged from the city's recycle truck. 	Gravity Mainline		Vitrified Clay		106	SSO discharged at 1307 N. Salsipuedes basement. Portion of the SSO volume saturated in the ground in the basement.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Vacuumed basement and disinfected spill area at 1307 N. Salsipuedes. Discharge from the recycle truck was all recovered. Washed down, disinfected, and vacuumed at the curb and gutter.	Vacuumed basement and disinfected spill area at 1307 N. Salsipuedes. Discharge from the recycle truck was all recovered. Washed down, disinfected, and vacuumed at the curb and gutter. 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Establish a workflow for city inspectors to confirm contractors' work and review whether any obstructions have been left behind in the city�s sewer main. 	The city inspector will confirm that city contractor removes all sewer plugs when installing a wye. Training for city WWC staff on operating the recycle truck. 		04/04/2024 10:45	Operator error   N/A  Cleaned SSO pipe on 4/4/2024 to remove minor roots. 		Operator error. Training   N/A	04/04/2024 10:45														N/A	Operator error. Training  N/A	Operator error. Training  N/A	Operator error. Training  N/A	Operator error. Training   N/A	Operator error. Training   N/A	Operator error. Training   N/A	No SSO response modifications. 	Operator error. Training   N/A	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	894724	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	07-MAY-24	08-MAY-24	08-MAY-24	Category 1 Spill	463 63rd Street, Oakland Ca	05/04/2024 20:14	05/04/2024 21:00	05/04/2024 16:43	05/04/2024 23:22	24-2593		Lateral clean out (private overflowing in planter strip between gutter and public sidewalk. 	37.84885	-122.25873	Lateral Clean Out (Private)			810	Lateral clean out (private overflowing in planter strip between gutter and public sidewalk., the sewage flowed down on the gutter to the nearest separate storm inlet.	Y	Underground 33  storm line called Temescal creek.	0	810	Underground 33  storm line called Temescal where it daylights to a dry bed creek.	810	0	Drainage Conveyance System that discharges to surface water		Eight hundred and ten gallons overflowed from a private sewer lateral due to the city main being obstructed. Grease was the cause of the spill. Sewage spilled into an inlet that leads to Lake Temescal.	Y	37.84885	-122.25873							05/04/2024 23:17	270 min x 3GPM = 810 Gallons.	Start time was based on eyewitness account. End time was based on responding crew clearing the obstruction.	Fats, Oil and Grease (FOG)	Debris also was the cause of the overflow.	Gravity Mainline		Vitrified Clay		90	Eight hundred and ten gallons overflowed from a private sewer lateral due to the city main being obstructed. Grease was the cause of the spill. Sewage spilled into an inlet that leads to Lake Temescal.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow	Staff washed down and vacuumed the affected areas.	Staff washed down and vacuumed the affected areas.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Sewer line was added to High frequency maintenance program.	Sewer line was added to High frequency maintenance program.	05/05/2024 00:00	Sewer grease obstructed the sewer pipe causing the overflow. Eight hundred and ten gallons spilled into a storm inlet that leads to Lake Temescal.	N			Lake Temescal	Lake		Lake.	None.	Other (specify below)	None.	N/A	0	Y	N												
9	9SSO10680	Active	Padre Dam CS	Padre Dam Municipal Water District	894725	1.4	Certified	Paul Clarke	Director of Operations		22-MAY-24	22-MAY-24	Monthly Category 3 Spill	Santee Lakes Lake 2 SSO	05/06/2024 08:45	05/06/2024 08:51	05/06/2024 08:28				MH 3029 located inside Santee Lakes Recreational Preserve.	32.851249	-117.005098	Manhole			480	Spill appeared from manhole and ran approximately 80 feet South on a concrete/asphalt road before entering a storm drain catch basin.	Y	Storm drain catch basin owned and operated by Santee Lakes.	455				480	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Spill appeared from manhole and ran approximately 80 feet South on a concrete/asphalt road before entering a storm drain catch basin.	Y	32.851039	-117.005083							05/06/2024 08:40	Visual estimation of spill volume was used based on the SSCSC Manhole Overflow Gauge.  CCTV footage was used to confirm that all spill volume was recovered with a Vactor and returned to the sewer system.	Spill start time and spill end time were based on visual confirmation from person who witnessed the spill start and end.	Flow Exceeded Capacity (Separate Collection System Only)		Gravity Mainline		Other (specify below)	Epoxy Lined ACP	58	Spill appeared from manhole and ran approximately 80 feet South on a concrete/asphalt road before entering a storm drain catch basin.  The entire spill volume was recovered from the storm drain and paved surface and returned to the sewer system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned All Spill to Sanitary Sewer System		Spill had already stopped when Padre Dam staff arrived.  Sandbags were placed near storm drain inlet to prevent any further discharge from entering.  Vactor hydro flushed and vacuumed approximately 70 feet of storm drain and captured entire spill volume from storm drain and paved surface.  Entire spill volume was returned to the sewer system.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Since flow was restored on its own CCTV inspection found no direct cause of spill.  Spill is assumed to have occurred due to higher than normal flows from pumping at upstream manhole that surcharged a siphon further down the line.  Once enough head pressure built up it pushed the flow through the siphon and normal flow was restored.  SmartCover device will be installed at the manhole that spilled to alert staff to possible future discharges as well as a new locking manhole cover by the end of September 2024.  Delay in locking manhole installation is due to 12 week lead time for locking/sealing manhole cover.		05/06/2024 12:15	Upon notification of the spill, District crews responded and observed that the manhole that spilled was still surcharged but no longer spilling.  It is assumed that enough head pressure built up in the line to force flow through a siphon downstream.  Pumping was occurring at an upstream manhole from spill but the pipe should have enough capacity to not spill under normal circumstances. 		N/A	05/06/2024 16:00														N/A	SmartCover device will be installed at the manhole that spilled to alert staff to possible future surcharging.	N/A	N/A	Inspected approximately 800 feet of sewer main and found no signs of a blockage.  Checked downstream manhole from siphon and confirmed active flow.  Performed confined space entry to confirm valves on downstream siphon line to confirm all valves were completely open and did not cause spill.  SmartCover device and locking manhole lid will be installed to help prevent future spills.	N/A	Staff will monitor flow level in this line closely during future pumping activities with SmartCover device and by visual inspection.	No spill response activity modifications needed.	N/A	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	894728	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	07-MAY-24	08-MAY-24	08-MAY-24	Category 1 Spill	5758 Romany Road, Oakland Ca	05/05/2024 18:49	05/05/2024 19:30	05/05/2024 08:00	05/05/2024 19:39	24-2604		Lamp-hole overflowing in the street.	37.84132	-122.23894	Other Sewer System Structure	Lamp-hole overflowing in the street.		1720	Lamp-hole overflowing in the street, and flowing down on the street to the nearest separate storm drain.	Y	Underground 10  storm line named Rockridge creek, it flows to a creek named Rockridge and Glen Echo creeks, it flows to a small lake used to water a golf course.	0	1720	10  underground storm line named Rockridge creek flowing down to Rockridge and Glen Echo creeks.	1720	0	Drainage Conveyance System; Other (specify below)	Sewage overflowed from lamp hole down the street into a storm inlet that leads to, Rockridge, and Glen Echo Creek 	Sewage overflowed from lamp hole down the street into a storm inlet that leads to, Rockridge, and Glen Echo Creek 	Y	37.84132	-122.23894							05/06/2024 12:40	1720 minutes x 1 GPM = 1,720 gallons.	Start time was based on eyewitness account. End was based on the construction clearing the blockage.	Other (specify below)	Asphalt left behind by private contractor. While repaving the street, asphalt was pushed into sewer main causing the sewer overflow.	Other (specify below)	Asphalt left behind by private contractor. While repaving the street, asphalt was pushed into sewer main causing the sewer overflow.	Vitrified Clay		90	Asphalt left behind by private contractor. While repaving the street, asphalt was pushed into sewer main causing the sewer overflow. 1,720 gallons spilled into an inlet that leads to Rockridge and Glen Echo Creek.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow		Sewer staff washed down and vacuumed affected areas.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Sewer line was added to the six-month high frequency maintenance program.	Sewer line was added to the six-month high frequency maintenance program.	05/06/2024 12:40	CCTV found asphalt to be the cause of the overflow.	Y	There is an ongoing investigation because the contractor who paved the road was the cause of the spill.	06/30/2024 13:12	Rockridge and Glen Echo Creek	Stream/Creek	Creek	Creek	None.	Other (specify below)	None.	N/A	0	Y	N											There is an ongoing investigation because the contractor who paved the road was the cause of the spill.	
2	2SSO10172	Active	Ross Valley Sanitary District CS	Ross Valley SD	894732	1.2	Certified	Paul Bruemmer	O&M Manager 		21-MAY-24	21-MAY-24	Monthly Category 3 Spill	237 Evergreen dr, Kentfield	05/01/2024 19:10	05/01/2024 20:07	05/01/2024 19:05				The spill originated from a blockage in the gravity fed mainline sewer and appeared at MH W600.110 in the street. 	37.943901	-122.558662	Manhole			178	The spill exited the sewer main from MH W600.110 and traveled down both sides of the street approximately 160'. The north side of the street had a concrete V-ditch that led to a storm drain DI box. The South side of the street was a dirt hillside. 	Y	The north side of the street had a concrete V-ditch next to it that led to a storm DI box. Approximately 10 gallons reached and ultimately ended in the DI. Staff successfully captured 100% of spill that reached the DI box. 	10				10	Drainage Conveyance System; Unpaved Surface		The north side of the street had a concrete V-ditch next to it that led to a storm DI box. Approximately 10 gallons reached and ultimately ended in the DI. Staff successfully captured 100% of spill that reached the DI box. The south side of the street was a dirt drainage that ultimately ended on a hillside where that part of the spill absorbed into the dirt. 										05/01/2024 20:33	Volume estimation methods used:  Eyeball  duration and flow rate Area and volume formula 	The estimated start time of the spill was based upon eye witness account and volume of spill on the ground when staff arrived. The end time was based on when the blockage was broken and the spill no longer exited the collection system. 	Root Intrusion		Gravity Mainline		Vitrified Clay		77	The impact of the spill was minimal. Part of the spill ended absorbing into the hillside, the other portion of the spill was captured in the storm DI box, which was recovered 100% and returned to the collection system. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Broke blockage, ending the spill. Swept up any and all debris that exited the collection system. Recovered all portions of the spill that reached storm DI box. 	Adjusted Schedule/Method of Preventive Maintenance		Adjusted the cleaned/hydro jetting schedule for this line segment. 		05/03/2024 21:52	Root intrusion -retrieved roots when flushed pipe 		None	05/03/2024 22:00														NA	Adjusted the cleaned/hydro jetting schedule for this line segment. 	Adjusted the cleaned/hydro jetting schedule for this line segment. 	NA	NA	NA	In CMMS system 	NA	None	
5S	5SSO11433	Active	City of Stockton MUD CS	Stockton City MUD	894740	1.1	Certified	Dagmara Saini	Program Manager III		20-MAY-24	20-MAY-24	Monthly Category 3 Spill	702 N California St	12/06/2023 09:00	12/06/2023 11:00	12/06/2023 09:00				Spill description's on photos in the attachments tab	37.96073	-121.28628	Lateral Clean Out (Private); Other (specify below)	possible appearance point coming asphalt in front of address		103	Spill appearance from Private CO and through asphalt in the street	N						103	Paved Surface; Street/Curb and Gutter (2 3)		Spill contained in gutter and in the street in front of address										12/06/2023 13:30	Used measurements of the affected area to determine the spill quantity and transferred those measurements to the spill formula worksheet to determine the area of the spill.	The spill start and end time are based on the time the spill was reported and the time we were able to stop the spill.	Debris-General		Gravity Mainline		Vitrified Clay		100	None	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Used Hydro truck to clean and vacuum the impacted area of the spill.	Inspected Sewer Using CCTV to Determine Cause		CCTV the main line and implement any repairs or adjustments to a PM (if applicable) that are needed.		12/06/2023 14:00	No major defects found 		None 	12/08/2023 11:22														None	None	No adjustments made 	None	Not applicable 	None	None	Used Hydro truck to clean and vacuum the impacted area of the spill. CCTV the main line and implement any repairs or adjustments to a PM (if applicable) that are needed. 	None 	
3	3SSO11422	Active	Pebble Beach CSD CS	Pebble Beach Community Service District	894741	1.3	Certified	Nick Becker	Deputy General Manager		08-MAY-24	08-MAY-24	Monthly Category 3 Spill	3359 17 Mile Drive	04/16/2024 08:20	04/16/2024 08:23	04/16/2024 08:20				PBCSD_CS_Gravity Mainline_P-1090	36.56898	-121.93858	Gravity Mainline			53	30 sq ft area; grassy shoulder on edge of road near 3359 17 Mile Drive	N						13	Unpaved Surface		Grassy area adjacent to front of 3359 17 Mile Drive.										04/16/2024 11:02	Used a measured area/volume calculation from measurements taken in the field (length, width, and depth of soil) along with soil saturation to total 53 gallons. 13 gallons were recovered with vacuum truck.	Spill end time was when the blockage was removed. 	Debris-General; Root Intrusion		Gravity Mainline		Vitrified Clay		90	Saturated soil in immediate area near appearance point.	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Vacuum truck was used to clean up standing water and saturated soil. A jetting truck was used to remove debris.	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		A new manhole was placed along gravity main P-1090 to increase access for debris removal and for future jetting and CCTV efforts. 		04/16/2024 11:02	CCTV investigation revealed large quantities of gravel and roots in the pipe that needed to be removed in order to restore normal flow conditions in gravity main P-1090.		N/A	04/16/2024 11:02														N/A	New manhole placement on gravity main P-1090.	The new manhole allows better access for cleaning and CCTV.	This section of pipe was added to the rehabilitation/replacement program due to age of pipe.	N/A	New manhole placement was a capital improvement to this line.	A work order for manhole installation was initiated on same day as spill was discovered.	N/A	N/A	
3	3SSO10250	Active	Guadalupe City CS	Guadalupe City	894745	1.2	Certified	David R Miklas	Wastewater Supervisor	09-MAY-24	05-JUN-24	05-JUN-24	Category 2 Spill	Intersection of Manzanita Drive and Obispo Street	05/04/2024 12:40	05/04/2024 12:45	05/04/2024 12:30	05/04/2024 14:50	24-2589		The spill came from a manhole at the intersection of Manzanita Drive and Obispo Street in Guadalupe, CA. 	34.953516	-120.569265	Manhole		None	1579	The spill came from the manhole at the intersection of Manzanita Drive and Obispo Street and traveled east down Manzanita. It spread to both sides of the street and into storm drains. It covered approximately 1300 square feet.	Y	Two storm drains on either side of Manzanita Drive that are connected under the street and drain to a swale to the south. of Manzanita Drive.	0	424			1155	Groundwater Infiltration Basin or Facility; Paved Surface		The spill came from the manhole at the intersection of Manzanita Drive and Obispo Street and traveled east down Manzanita.  It covered approximately 1300 square feet. It spread to both sides of the street and into storm drains. The storm drains go a short distance to catch basin.	Y	34.95352	-120.5693	34.95339	-120.56922					05/04/2024 14:45	Spill area simplified to a rectangle of 40 feet by 33 feet averaging 2 inches deep is a volume of 1579 gallons. The area was measured at the time of the spill. The flow that entered the storm drain was figured out by an assumed flow rate of 1.5 feet per second times 3 inches wide and 1/4 inch deep in the gutter. This gives a flow rate of 212 gallons for the hour it flowed before the flow was contained to the gutter. This times 2 gutters is 424 gallons going down the storm drains to the catch basin.	A neighbor saw the spill immediately after is started. He went home and called the emergency number on his water bill; notifying wastewater staff, who happened to be driving into work at the time. 	Collection System Maintenance Failure (specify below); Debris-General; Debris-wipes/Non-disposables	The lift station is not owned or maintained by the city. The private owners have not checked the lift station properly.  	Pump Station - Mechanical		Polyvinyl Chloride (PVC)		5	no impact	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		The spill was contained to the gutter by dirt piled in front of the storm drains. A contracted pump truck was called to pump out the overflowing sewer system and lift station. Two trucks were used and the spill was stopped by (   ). The trucks continued until the 25 foot deep lift station was emptied. Debris and rags were removed from the bottom of the lift station. The pumps were removed and de-ragged. Two floats were found to be faulty and an electrician was called in to replace them. 	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance		1. The pump float system will be repaired.  2. A working alarm system is going to be installed.  3. A schedule of daily or weekly inspections will be implemented.	1. Float system was repaired on May 6, 2024. 2. A new alarm system will be set up by July 1, 2024 3. An inspection program will be started by July1, 2024	05/05/2024 05:00	This privately owned lift station has not been inspected or maintained. The alarm system was not active. When the pumps clogged up, there was no indication until the spill happened. 	N												N													
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	894753	1.2	Certified	Daniel Whitlock	Manager	08-MAY-24	17-MAY-24	17-MAY-24	Category 2 Spill	Marin and Indiana St.	05/04/2024 14:30	05/04/2024 15:00	05/04/2024 14:17		-		Flooding at Marin and Indiana with water coming out of manholes N-34064 and N-415522	37.7489786	-122.3903584	Manhole; Other (specify below)	Catch Basins		682762	Flooding at the intersection of Marin and Indiana St from manholes N-34064 and N-415522.	N						682762	Other (specify below); Paved Surface; Street/Curb and Gutter (2 3)	Catch Basin	Spill came from manholes N-34064 and N-415522 on Marin and Indiana and flooded the street.	Y	37.7489786	-122.3903584	37.7486062	-122.3903259	37.7488191	-122.390167			05/04/2024 16:00	H&H Hydraulics model	H&H Hydraulics model	Other (specify below); Surcharged Pipe (Combined Collection System Only)	Rainfall exceeded capacity.	Manhole		Concrete		28	Sidewalk closure, barricades with safety precautions about sewer spill deployed.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Other Enforcement Agency Notified	Returned all spill to Combined Sewer and pressure washed road and disinfected area.	Pressure washed road and disinfected area. Contained all in CB's and cleaned CB's	Other (specify below)	No corrective action could have been taken place to prevent the spill.	No corrective action could have been taken place to prevent the spill.	N/A	05/04/2024 16:30	Rainfall exceeded capacity of the pipes.	N												N													
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	894755	1.1	Certified	Ameal McLaurin	Sewer Supervisor 2		08-MAY-24	08-MAY-24	Monthly Category 3 Spill	145 Kimberlyn Heights, Oakland Ca	04/28/2024 19:55	04/28/2024 20:45	04/28/2024 15:00				Lateral clean out (private) in front of the building and the toilet inside the building.	37.80019	-122.17698	Inside Building or Structure; Lateral Clean Out (Private)			820	Lateral clean out (private) in front of the building was overflowing into unpaved surface where it soaked into the soil. The toilet inside the building overflowed and spilled into the building.	N						0	Building or Structure; Unpaved Surface		Lateral clean out (private) in front of the building was overflowing into unpaved surface where it soaked into the soil. The toilet inside the building overflowed and spilled into the building.										04/28/2024 19:15	Unpaved surface: 20'L x 13'W x 2'D x 7.48-gal x.1875 = 729 gallons Inside building bathroom: 5.25'L x 4.75'W x ,01D x 7.48-gal = 2 gallons Closet: 5.25'L x 4.66'W x .08'D x 7.48-gal = 15 gallons Bedroom: 10'L x 9.08'W x .08'D x 7.48-gal = 54 gallons Office: 9.08'L x 3.66'W x .08'D x 7.48-gal = 20 gallons Total spill: 729 + 2 + 15 + 54 + 20 = 820 gallons 	Start time was based on eyewitness account. The end time was based on responding sewer crew restoring the flow in the mainline.	Root Intrusion		Manhole		Vitrified Clay		90	Lateral clean out (private) in front of the building was overflowing into unpaved surface where it soaked into the soil. The toilet inside the building overflowed and spilled into the building.	N	Other (specify below); Property Owner Notified; Restored Flow	Property owner was provided with a claim packet for restoration company to clean up the affected spill areas.	Property owner was provided with a claim packet for restoration company to clean up the affected spill areas.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Mainline was added to 6-month high hydro frequency program, work order #1522877.		04/30/2024 10:02	CCTV inspection showed the mainline in good condition, root intrusion was from a tap break inside the manhole, the tap break in lateral connection allowed roots to grow and to block the downstream invert causing the blockage.		N/A	04/30/2024 10:02														N/A	Mainline was added to 6-month high hydro frequency program, work order #1522877.	Mainline was added to 6-month high hydro frequency program, work order #1522877.	N/A	CCTV inspection showed the mainline in good condition, root intrusion was from a tap break inside the manhole, the tap break in lateral connection allowed roots to grow and to block the downstream invert causing the blockage.	N/A	Mainline was added to 6-month high hydro frequency program, work order #1522877. Notice to abate and to fix the tap break in connection was created. Work order # 1524250.	Mainline was added to 6-month high hydro frequency program, work order #1522877. Notice to abate and to fix the tap break in connection was created. Work order # 1524250.	N/A	
5R	5SSO10835	Active	Mt Shasta CS	Mt Shasta City	894759	1.1	Certified	David Torres	PW Supervisor		14-JUN-24	14-JUN-24	Monthly Category 3 Spill	Forest St MH 485	05/06/2024 10:07	05/06/2024 10:19	05/06/2024 07:07				Spill occurred at MH 485 located approximately 160 ft from the intersection of Forest and Berry St.	41.30889	-122.31298	Gravity Mainline; Manhole			384	Spill occurred at MH 485 and travelled approximately 208 feet west along the gutter pan/shoulder to Brush St and approximately 54 feet south along the shoulder of Brush St.  	N						20	Paved Surface; Unpaved Surface		The spill destination was the soil shoulder at the west edge of Brush St.	Y	41.30877	-122.31433							05/06/2024 11:23	Spill volume was estimated using the Sample Template for SSO Volume Estimation Table A and the duration of the spill.	Assumption was made using the Sample Template for SSO Volume Estimation Table A and the extent of the spill.	Root Intrusion		Gravity Mainline		Vitrified Clay		79	The immediate impact was the surfacing of raw sewage on to the streets, no lasting impacts  and no property damage occurred.	N	Cleaned Up (specify below); Restored Flow		Restored flow by removing blockage in mainline with flusher truck. Spill was contained by raised soil shoulder along the west side of brush street. Approximately 20 gallons of spill was recovered with vacuum truck. Roadway was washed down and shoulder was scoured with water hose from flusher truck and wash down water was collected with vacuum truck.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Roots were cut using root cutter on flusher truck and removal was verified with CCTV inspection. Corrective actions were completed on 5/6/2024, the day of the spill.		05/06/2024 15:48	Crew used CCTV camera to verify the cause of the blockage and verified that roots were removed with post camera inspection.		Investigation was concluded on 5/6/2024 the day of the spill.	05/06/2024 15:48														No	Section of mainline was added to routine root cutting schedule. No anticipated modifications planned.	Section of mainline was added to routine root cutting schedule.	No anticipated replacements planned.	Inspection found several pipe joints with root intrusions.	No capital improvements planned.	PW crew have added this section of line to our routine root cutting schedule.	PW crew have added this section of line to our routine root cutting schedule.	Investigation was concluded on 5/6/2024 the day of the spill.	
2	2SSO10155	Active	Millbrae City CS	Millbrae City	894765	1.7	Certified	Craig	Deputy Director Public Works	08-MAY-24	10-MAY-24	10-MAY-24	Category 1 Spill	1126 Hillcrest Blvd	05/08/2024 09:28	05/08/2024 09:30	05/04/2024 09:28		-		Photos attached	37.59444	-122.40325	Manhole			180	Photo of manhole lid discharge	Y	Storm drain at 980 Hillcrest	0	0	Storm drain 980 Hillcrest	180	0	Drainage Conveyance System		Storm Drain at 980 Hillcrest	N	37.5943	-122.40133							05/04/2024 09:30	Duration and flow rate	Minutes multiplied by gallons per minute	Pipe Structural Problem/Failure - Controls		Gravity Mainline		Vitrified Clay		70	None 	Y	Restored Flow		Unable to recover. Heavy rains brought downstream	Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect		Replaced entire main responsible with HDPE	corrections completed	05/04/2024 10:30	Collapsed main upstream.	N	investigation complete	05/10/2024 12:40	Millbrae Creek	Other (specify below)	Creek 	Creek that picks up surface waters behind homes	none	Other (specify below)	None	n/a	0	N	N											investigation complete	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	894766	1.1	Ready to Certify						Monthly Category 3 Spill	6138 Thornhill Drive, Oakland Ca	04/30/2024 14:46	04/30/2024 16:45	04/30/2024 13:30				Manhole overflowing on easement on the hillside.	37.83979	-122.2095	Manhole			131	Manhole overflowing on easement on the hillside. The sewage flowed down on unpaved surface where it soaked into the ground.	N						0	Unpaved Surface		Manhole overflowing on easement on the hillside. The sewage flowed down on unpaved surface where it soaked into the ground.										04/30/2024 18:40	Area near manhole: 2'L x 2'W x 1'D x 7.48-gal x .1875 = 6 gallons Hillside: 25'L 15'W x.166'D x 7.48-gal x .1875 = 87 gallons Rock trail: 65'L x 4'W x .02'D x 7.48-gal = 38 gallons Total spill: 6 + 87 + 38 = 131 gallons	Start time was based on eyewitness account. The end time was based on responding sewer crew restoring the flow in the mainline.	Root Intrusion		Gravity Mainline		Polyvinyl Chloride (PVC)		25	Manhole overflowing on easement on the hillside. The sewage flowed down on unpaved surface where it soaked into the ground.	N	Other (specify below); Property Owner Notified; Restored Flow	Claim packet was provided to property owner to have restoration company to clean and mitigate the effects of the spill.	Claim packet was provided to property owner to have restoration company to clean and mitigate the effects of the spill.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		CCTV inspection found the mainline to be in good condition. The mainline was added to 6-month hydro high frequency program. Work order # 1523496.		05/02/2024 09:32	Root intrusion inside the manhole, the roots caused the blockage in the downstream manhole invert.		N/A	05/02/2024 09:32														N/A	The mainline was added to 6-month hydro high frequency program. Work order # 1523496.	The mainline was added to 6-month hydro high frequency program. Work order # 1523496.	N/A	CCTV inspection found the mainline to be in good condition.	N/A	The mainline was added to 6-month hydro high frequency program. Work order # 1523496.	The mainline was added to 6-month hydro high frequency program. Work order # 1523496.	N/A	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	894767	1.1	Certified	Ameal McLaurin	Sewer Supervisor 2		08-MAY-24	08-MAY-24	Monthly Category 3 Spill	6138 Thornhill Drive, Oakland Ca	04/30/2024 14:46	04/30/2024 16:45	04/30/2024 13:30				Manhole overflowing on easement on the hillside.	37.83979	-122.2095	Manhole			131	Manhole overflowing on easement on the hillside. The sewage flowed down on unpaved surface where it soaked into the ground.	N						0	Unpaved Surface		Manhole overflowing on easement on the hillside. The sewage flowed down on unpaved surface where it soaked into the ground.										04/30/2024 18:40	Area near manhole: 2'L x 2'W x 1'D x 7.48-gal x .1875 = 6 gallons Hillside: 25'L 15'W x.166'D x 7.48-gal x .1875 = 87 gallons Rock trail: 65'L x 4'W x .02'D x 7.48-gal = 38 gallons Total spill: 6 + 87 + 38 = 131 gallons	Start time was based on eyewitness account. The end time was based on responding sewer crew restoring the flow in the mainline.	Root Intrusion		Gravity Mainline		Polyvinyl Chloride (PVC)		25	Manhole overflowing on easement on the hillside. The sewage flowed down on unpaved surface where it soaked into the ground.	N	Other (specify below); Property Owner Notified; Restored Flow	Claim packet was provided to property owner to have restoration company to clean and mitigate the effects of the spill.	Claim packet was provided to property owner to have restoration company to clean and mitigate the effects of the spill.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		CCTV inspection found the mainline to be in good condition. The mainline was added to 6-month hydro high frequency program. Work order # 1523496.		05/02/2024 09:32	Root intrusion inside the manhole, the roots caused the blockage in the downstream manhole invert.		N/A	05/02/2024 09:32														N/A	The mainline was added to 6-month hydro high frequency program. Work order # 1523496.	The mainline was added to 6-month hydro high frequency program. Work order # 1523496.	N/A	CCTV inspection found the mainline to be in good condition.	N/A	The mainline was added to 6-month hydro high frequency program. Work order # 1523496.	The mainline was added to 6-month hydro high frequency program. Work order # 1523496.	N/A	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	894768	1.1	Certified	David Leamer	Assistant Superintendent		29-MAY-24	29-MAY-24	Monthly Category 3 Spill	341433	04/09/2024 08:53	04/09/2024 09:25	04/09/2024 08:00				See Attachment, Spill Map and Photos	38.59142	-121.34343	Manhole	N/A		95	See Attachment, Spill Map and Photos	Y	See Attachment, Spill Map and Photos	81				88	Drainage Conveyance System; Street/Curb and Gutter (2 3)		See Attachment, Spill Map and Photos	Y	38.58699	-121.3459							04/09/2024 09:35	See Attachment, Spill Volume Estimation.	See Attachment, Spill Volume Estimation.	Root Intrusion		Gravity Mainline		Vitrified Clay		54	No observed impact of spill	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		The SacSewer manhole spilled to the street, the curb and gutter, and a storm drain inlet at 5040 Keane Drive, entering the storm drain system.   There was light flow in the storm drain system.   The following locations were tested. �           SDMH at 5080 Keane Drive � for upstream comparison purposes �           SDMH at 5040 Keane Drive � presence of sewage detected �           SDMH at 4970 Keane Drive � presence of sewage detected �           SDMH at 4941 Keane Drive � presence of sewage detected �           SDMH at 4901 Finlandia Way � no presence of sewage detected SacSewer crews cleaned the affected aboveground area and recovered the spill on land using a hydro-vacuum truck. SacSewer crews placed a containment dam in the manhole at 4901 Finlandia Way. SacSewer crews introduced de-chlorinated water through the drainage inlet at 5040 Keane Drive to the containment dam. The spill/flush water was pumped to the sewer system through SacSewer manhole 334-185-1006.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected mainline with CCTV on 4/12/24. Based on findings, SacSewer increased preventative cleaning frequency to 12 months from 24 months.		04/09/2024 08:30	he SacSewer manhole spilled to the street, the curb and gutter, and a storm drain inlet at 5040 Keane Drive, entering the storm drain system.  There was light flow in the storm drain system.   The following locations were tested. �           SDMH at 5080 Keane Drive � for upstream comparison purposes �           SDMH at 5040 Keane Drive � presence of sewage detected �           SDMH at 4970 Keane Drive � presence of sewage detected �           SDMH at 4941 Keane Drive � presence of sewage detected �           SDMH at 4901 Finlandia Way � no presence of sewage detected SacSewer crews cleaned the affected aboveground area and recovered the spill on land using a hydro-vacuum truck. SacSewer crews placed a containment dam in the manhole at 4901 Finlandia Way. SacSewer crews introduced de-chlorinated water through the drainage inlet at 5040 Keane Drive to the containment dam. Stoppage caused by roots		N/A	04/09/2024 16:40														N/A	SacSewer increased preventive cleaning frequency from 24 months to 12 months.	SacSewer increased preventive cleaning frequency from 24 months to 12 months.	N/A	SacSewer inspected mainline with CCTV on 4/12/24.	N/A	SacSewer increased preventive maintenance frequency on 5/8/24	N/A	N/A	
2	2SSO10155	Active	Millbrae City CS	Millbrae City	894770	1.4	Certified	Craig	Deputy Director Public Works		10-MAY-24	10-MAY-24	Monthly Category 3 Spill	1031 Hillcrest	05/04/2024 12:35	05/08/2024 12:46	05/04/2024 12:59				Photos attached	37.59412	-122.4019	Inside Building or Structure			759	Photos inside and out of home	N						0	Building or Structure; Unpaved Surface		Basement and back yard		37.59407	-122.40199							05/04/2024 12:59	Flow rate and time of flow	Methodology attached	Debris-General		Gravity Mainline		Vitrified Clay		70	Flooded basement and yard	Y	Property Owner Notified; Restored Flow		Restore flow and homeowner instructed to call restoration company.	Inspected Sewer Using CCTV to Determine Cause		CCTV to inspect main. Cause from upstream main collapse. Upstream main replaced with new HDPE pipe.		05/04/2024 12:59	Debris from pipe collapse on main upstream of address is likely cause of back up. Segment 313120-313126 collapsed. Crew informed me of a piece of pipe was removed from the segment within the blockage. Damaged on segment 313113-313111 was discovered during the investigation and being repaired. Upstream main has been replaced as well with new HDPE laterals and main.  		CCTV investigation discovered cause.	05/10/2024 07:21														N/A	Previous CCTV shows line ok. Collapsed line close by upstream may have caused the debris in line causing overflow.	Will continue maintenance with additional CCTV work.	New CCTV shows damaged pipe. Pipe patch being installed 5/10/24. Pipe still place and will be repaired	Installing pipe patch today 5/10/24	Not at this time	Work order attached. Pictures attached of main replaced above asset.	Arrived with combo truck. Jetted line to clear blockage.	CCTV investigation discovered cause.	
2	2SSO10163	Active	Oro Loma Sd CS	Oro Loma Sanitary District	894772	1.3	Certified	Christopher Brown	Collection System Manager	08-MAY-24	22-MAY-24	22-MAY-24	Category 1 Spill	Foothill Boulevard	05/05/2024 10:29	05/08/2024 10:58	05/05/2024 08:30	05/05/2024 15:46	24-2601		Manhole 3636-G32 located on Foothill Blvd near 173rd Ave. caught rags/wipes which led to the eventual blockage of the downstream pipe. This led to the surcharging and spill from the manhole. 	37.69134	-122.09867	Gravity Mainline			4950	The spill ran north and south along the curb and gutter entering two separate drain inlets. One 24' from the appearance point and the other approximately 460' away.  	Y	Local storm drain upstream of Alameda County flood control channel.	0	4950	The storm drain led to the Alameda County Flood Control Channel which eventually leads to the San Francisco Bay.	4950	0	Drainage Conveyance System		The spill reached separate storm drain inlets which both eventually lead to the Alameda County Flood Control channel.	Y	37.698233	122.071114							05/05/2024 11:45	The spill rate was determined to be 25 gallons per minute based on the observed flow rate upon arrival. This was compared to the San Diego flow chart photos carried in the spill response packs carried in all vehicles. The duration was determined to 195 minutes based on when the original caller first observed the spill and the time crews relieved the stoppage. The volume was determined to be 4,875 gallons of which only 260 gallons was recovered from the storm drain inlets and curb and gutter. The recovered volume was determined by measuring the length, width, and depth of the water in the storm drain inlet and the curb and gutter area.	The spill start time was determined to be when the original caller first observed the spill, since there was no additional quantifiable evidence to support an earlier start time.	Debris-Rags		Manhole		Vitrified Clay		73	There was no observed impact from the spill. The spill entered the storm drain where it comingled with the existing flow. There was no observed impact or signs of the spill down stream of the point of entry.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Upon confirmation of the spill the responder began sand bagging at the drain inlets to minimize the flow into the storm drain inlet while a jetter truck was dispatched to the scene. The responder then began following the storm drain down stream looking for a dry drain inlet to contain the spill. The spill had already reached a large diameter storm drain containing flow on the other side of the freeway,  Upon the jetter trucks arrival the crews relieved the stoppage while the vacuum truck was en route. Upon arrival the vacuum truck set up on the closest storm drain inlet to begin vacuuming and washing down the roadway and curb and gutter area. the vacuum truck then moved to the second affected drain inlet and repeated the process. Crews then flushed, jetted and vacuumed the storm drain line downstream of the entry point until they reached the 24  storm drain containing flow.  Crews returned the following day to conduct a post spill CCTV inspection and to finalized any cleanup possible  	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		The spill was caused by rags/wipes catching in the channel of the manhole. The line segment above the manhole is already on a current line replacement project and the contractor has been  asked to mobilized there next. The channel that caught the rags/wipes will be redone as part of that scope of work. The line segment has had no previous issues or stoppages.	The manhole channel that caught the rags/wipes will be re-channelized by the end of the year.	05/06/2024 12:00	Crews removed a large amount rags/wipes from the line after relieving the stoppage. A CCTV inspection was performed the following day to determine if there were any other contributing factors that led to the spill. None were found other than the rough channel at the appearance point manhole. It is believed that an upstream apartment complex had there lateral cleared which may have led to the stoppage.	N			Alameda County Flood Control Channel	Other (specify below)	Alameda County Improved Flood Control Channel	Alameda County Improved Flood Control Channel	None	Other (specify below)	There were no closures or restrictions.	There were no closures or restrictions.	0	N	N												
5S	5SSO11433	Active	City of Stockton MUD CS	Stockton City MUD	894774	1.3	Certified	Dagmara Saini	Program Manager III	08-MAY-24	21-MAY-24	21-MAY-24	Category 2 Spill	6518 Plymouth Rd.	05/08/2024 11:15	05/08/2024 11:15	05/08/2024 11:15	05/08/2024 16:38	24-2650		During a scheduled ARV repair, flow in the force main had not been stopped for unknown reasons.  When the contractor attempted to remove the old ARV at 11:15 a.m., it broke off due to corrosion and the pressure instantly created a sewer spill at 6518 Plymouth Rd.  	38.00323	-121.34891	Force Main			55000	The spill left the ARV M/H and traveled down the gutter half a block North to Sheridan Wy where it entered a County maintained storm system at the catch basin in front of 2806 Sheridan Wy.  HydroVac trucks were on site and helped minimize the spill by continually vacuuming loads of sewage from the M/H until a bypass pump could be installed.  The county storm station was shutdown and the spill that entered into the storm system was captured in the wet well.  	Y	The spill entered a catch basin at 2806 Sheridan WY and was contained in the County storm pump station located behind 2804 Swain Rd.  	55000	0			55000	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		The spill was captured in a County maintained storm pump station wet well located behind 2804 Swain Rd.  	Y	38.00323	-121.34891							05/08/2024 13:30	2500gals/load x 18 loads = 45,000 gals. recovered from surface area. 10,000 gals. recovered from storm system - pumped and flushed to sanitary sewer system.	City crews on site when spill started and stopped.	Pipe Structural Problem/Failure - Controls		Air Relief Valve (ARV)/ Blow-Off Valve (BOV)		Concrete	Age of pipe under historical review	50	Spill entirely contained in, and recovered from, surface and storm water collection system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned All Spill to Sanitary Sewer System	Surface streets were cleaned immediately as the spill began and cleaning continued until the bypass pumping stopped the spill.  Cleaning photos were not captured.  	Surface cleaning, loads removed from storm system, by pass set up to stop overflow.	Repaired Facilities or Replaced Defect		The spill occurred during a planned repair of the Air Relief System.  The system has been repaired.  There has never been a spill in this location before this one.  	Flow was stopped on 5/9/2024 and repairs were completed by 10 a.m on 5/9/2024	05/10/2024 08:00	A scheduled repair to a damaged system resulted in a spill condition.  	Y	To determine why flow wasn't stopped when the original repair was started.  	05/31/2024 17:00										N												To determine why flow wasn't stopped when the original repair was started.  	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	894778	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		06-JUN-24	06-JUN-24	Monthly Category 3 Spill	2211 North Hollyridge Drive	05/08/2024 20:30	05/08/2024 21:18	05/08/2024 20:30				The initial crew arrived at 9:18 P.M. and discovered a 6-inch mainline sewer serving the referenced area backed up due to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed.  As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and to determine the proper corrective actions to be taken. In addition the crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.	34.10942	-118.31931	Manhole			97	Sanitary Sewer Overflow	N	No Sewage Entered The Drainage System					0	Other (specify below)	The entire back up amount soaked into the ground.	34.10942  -118.319310	Y	34.10942	-118.31931							05/08/2024 21:25	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.	Spill flowrate and volume determination based on flowout pickhole or opening Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening0.75inches Flowrate per pickole/opening (gpm)2gpm # of pickholes/openings1 Total flowrate (gpm)2gpm Duration of spill (minutes)55minutes Total flow (gallons)97gallons 	Root Intrusion		Gravity Mainline		Vitrified Clay		102	It was estimated that approximately 97 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		On Wednesday, May 08, 2024 at 8:30 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 2211 North Hollyridge Drive (593-G3). A CWCD crew was immediately dispatched to incident location and determined that the 6-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 9:25 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.    It was estimated that approximately 97 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground. 	Inspected Sewer Using CCTV to Determine Cause		The sewer location where the backup occurred will be televised to determine the exact cause and to determine the necessary actions to prevent future incidents at this location.		05/08/2024 21:25	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.		None At This Time.	05/08/2024 21:25														None At This Time	The pipe is currently in the root control program.	The pipe is currently in the root control program.	None At This Time.	None At This Time.	None At This Time	None At This Time.	On Wednesday, May 08, 2024 at 8:30 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 2211 North Hollyridge Drive (593-G3). A CWCD crew was immediately dispatched to incident location and determined that the 6-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 9:25 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.    It was estimated that approximately 97 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground. 	None At This Time.	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	894781	1.1	Certified	David Leamer	Assistant Superintendent		29-MAY-24	29-MAY-24	Monthly Category 3 Spill	341644	04/14/2024 18:20	04/14/2024 19:09	04/14/2024 18:15				See Attachment, Spill Map and Photos	38.66191	-121.25792	Lateral Clean Out (Public)	N/A		325	See Attachment, Spill Map and Photos	Y	See Attachment, Spill Map and Photos	312				321	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		See Attachment, Spill Map and Photos	Y	38.6619	-121.25762	38.6639	-121.25683					04/14/2024 19:09	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Debris-General		Gravity Mainline		Vitrified Clay		57	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		See Attached Description of Spill Event	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected mainline with CCTV on (Date). Based on findings, SacSewer increased preventative cleaning frequency to 6 months from 12 months.		04/15/2024 00:00	The SacSewer cleanout overflowed to an unpaved surface and flowed to a paved surface, curb, gutter, and a storm drain inlet at 5243 Maui Way, entering the storm drain system. Mainline blockage caused by debris.		N/A	04/15/2024 00:00														N/A	SacSewer increased preventive cleaning frequency from 12 months to 6 months.	SacSewer increased preventive cleaning frequency from 12 months to 6 months	N/A	SacSewer inspected mainline with CCTV on 4/15/24.	N/A	SacSewer increased preventive maintenance frequency on 5/8/24	N/A	N/A	
5S	5SSO11433	Active	City of Stockton MUD CS	Stockton City MUD	894782	1.3	Certified	Dagmara Saini	Program Manager III	09-MAY-24	21-MAY-24	21-MAY-24	Category 2 Spill	6201 Fisher Ct.	05/08/2024 17:30	05/08/2024 17:30	05/08/2024 17:30	05/08/2024 22:00	24-2654		The gravity system was inundated during peak flow from bypass pumping occurring at 6518 Plymouth Rd.  6201 Fisher Ct was the first of 4 appearance points.  	38.00091	-121.34832	Gravity Mainline; Manhole		Fisher Ct., Rutledge Ct. and 6609 Plymouth Rd.  	18000	The spill exited the 4 M/H's and flowed into nearby storm catch basins where it was trapped in the storm system and through pumping was returned to the sanitary system.  	Y	Approximately 2,000' of city maintained storm system was impacted by sewage.  24  RCP Storm pipe carried sewage into a 36  RCP storm pipe	18000	0			18000	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		The spill ended at a Storm M/H in the intersection of Meade Dr and Land View Dr.  	Y	37.99949	-121.35481							05/08/2024 19:45	200gpm x 75 mins and 100gpm x 30 mins (based on estimated flow rates from manholes and estimated start and stop times)	Crews were on site bypass pumping from a forced system into the gravity system and were able to see the spill begin.  Flow rates dropped as people settled in for the night and bypass pumping was slowed to a minimum to avoid additional spills.  	Flow Exceeded Capacity (Separate Collection System Only)		Gravity Mainline; Manhole		Concrete		63	Spill entirely contained in storm system and fully recovered. Surface area and storm system cleaned, flushed and pumped to sanitary sewer.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned All Spill to Sanitary Sewer System	The spill was caught as it was happening and multiple crews were already on hand.  The surface streets and gutters were cleaned instantly and photos of the cleanup were not taken.  	Spill entirely contained in storm system and fully recovered. Surface area and storm system cleaned, flushed and pumped to sanitary sewer.	Other (specify below)	Source of hydraulic overload discontinued.	Bypass pumping was removed as soon as the repair on the Air Relief Valve was repaired.  The force main was put back into full service and the gravity line was restored to normal flow on 5/9/2024	5/8/2024 we bypass pumped in order to repair an ARV on a force main.  Repairs were completed the next morning 5/9/2024	05/09/2024 14:00	During a repair to an Air Relief Valve flow on the forced main was not stopped for unknown reasons.  Bypass pumping was set up to stop the spill of the forced main.  Peak flow hours and bypass pumping caused the gravity line that runs parallel to the forced main to be inundated for a short period of time.  	N												N													
5S	5SSO11433	Active	City of Stockton MUD CS	Stockton City MUD	894783	1.2	Certified	Dagmara Saini	Program Manager III		20-MAY-24	20-MAY-24	Monthly Category 3 Spill	1525 Pacific AV	05/07/2024 10:40	05/07/2024 10:50	05/07/2024 10:20				1525 Pacific Av is a multi purpose educational center located in Stockton, Ca. It is serviced with one 6  lateral located on the Harding Way side of the building. 	37.96719	-121.29903	Lateral Clean Out (Private)			72	The spill occurred at 1525 Pacific Av, which is an adult learning facility. The spill discharged from the clean out located in the mow strip on the Harding Way side of the building and in to the gutter, coming to rest 234 feet from the clean out.	N						72	Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		The spill occurred at 1525 Pacific Av, which is an adult learning facility. The spill discharged from the clean out located in the mow strip on the Harding Way side of the building and in to the gutter, coming to rest 234 feet from the clean out.										05/07/2024 11:15	 Used time when we were notified via dispatch of a potential spill occurring and used the assumptions of 12.5 gph. Per SFR. or 8.75 gph for multiplex.	 Used measurements of the affected area to determine the spill quantity and transferred those measurements to the spill formula worksheet to determine the area of the spill.	Debris-Rags; Debris-wipes/Non-disposables		Lower Lateral		Polyvinyl Chloride (PVC); Vitrified Clay		10	None	N	Cleaned Up (specify below); Returned All Spill to Sanitary Sewer System		 Used Hydro truck to clean and vacuum the impacted area of the spill.	Adjusted Schedule/Method of Preventive Maintenance		 CCTV the lower lateral and implement any repairs or adjustments to a PM (if applicable) that are needed.		05/07/2024 11:50	21. CCTV the lower lateral and was confirmed that the spill was caused by debris/rags and hygiene products		None	05/08/2024 14:55														None	CCTV the Sanitary Lateral and implement any repairs or adjustments to a PM (if applicable) that are needed.	Yes	Yes	In progress	No	Waiting on approval to create work order	None	None	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	894795	1.2	Certified	John J. Hough	San Dist. Superintendent	10-MAY-24	21-MAY-24	21-MAY-24	Category 1 Spill	342806	05/07/2024 09:30	05/07/2024 09:56	05/07/2024 09:00		-		See Attached Spill map with Photos.	38.6752	-121.2954	Lateral Clean Out (Public); Manhole		One SacSewer manhole and one SacSewer cleanout	291	See Attached Spill Map with Photos	Y	See Attached Description of the Event and Spill map with Photos.	45	0	See Attached Description of the Event and Spill map with Photos.	242	291	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		See attached Spill Map with Photos.	Y	38.6752	-121.2954	38.6751	-121.2953	38.6723	-121.2965	38.6759	-121.3102	05/07/2024 09:56	See attached spill volume estimation	See attached spill volume estimation	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		58	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	Notified the City of Citrus Heights	See Attached Description of Spill Event	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause	SacSewer inspected the main line with CCTV on May 8, 2024. Based on the findings, SacSewer adjusted the preventive maintenance cleaning frequency from 24 months to 12 months.	See Attached Description of Spill Event.	SacSewer adjusted the preventive maintenance cleaning frequency from 24 months to 12 months.	05/07/2024 23:30	See Attached Description of Spill Event	N			Brooktree Creek	Stream/Creek		Concrete lined channel with light flow and areas of ponding.	No observed impacts to aquatic life.	Other (specify below)	No public access impact.	N/A	0	N	N												
4	4SSO11368	Active	West Hollywood CS	West Hollywood City	894804	1.2	Amended	Eric Liu	Civil Engineer	13-MAY-24	22-MAY-24	22-MAY-24	Category 1 Spill	1529-0003 (9255 Doheny Road, West Hollywood)	05/09/2024 10:00	05/09/2024 11:15	05/08/2024 11:00	05/09/2024 11:47	24-2670		CSMD Map Sheet No. 1529 Manhole No. 3 MMS No. 8782000 Manhole No. 3 was overflowing. 	34.09066	-118.39456	Manhole	Manhole No. 3		31763	Manhole No. 3 was overflowing onto the street.  The spill entered a storm drain located at 9255 Doheny Drive.	Y	The spill entered a storm drain located at 9255 Doheny Drive that flows into the Hollyhills Drain.	0	31763	The spill entered a storm drain located at 9255 Doheny Drive that flows into the Hollyhills Drain, Ballona Creek, and Santa Monica Bay. 	31763	0	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		The spill entered a storm drain located at 9255 Doheny Drive that flows into the Hollyhills Drain, Ballona Creek, and Santa Monica Bay. 	N									05/09/2024 12:30	Tributary Connections Method by office engineering staff.	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops.	Root Intrusion		Gravity Mainline		Vitrified Clay		97	Beach Closure	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow		Upon arrival, we found manhole no. 3 overflowing.  We set a spill berm at  the catch basin on 9255 Doheny Rd. and proceeded to clean the mainline from manholes 4 to 3 on Doheny Rd. to break down a heavy root blockage. we waited for the mainline to dissipate before re-cleaning with a warthog nozzle. We washed the area down with fresh water and picked up any visible solids and spill berm.  All required agencies were promptly notified.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Inspected sewer using CCTV and added sewer to preventive maintenance program. 	90-days Hydro Root Saw periodic. 	05/09/2024 12:30	Inspected sewer using CCTV and added sewer to preventive maintenance program (90-days Hydro Root Saw periodic). 	N			Hollyhills Drain, Ballona Creek, and Santa Monica Bay	Ocean		Hollyhills Drain, Ballona Creek, and Santa Monica Bay	Beach Closure	Other (specify below)	Beach Closure	LA County Recreation Waters Program	3	N	Y	7 sampling locations total, 4 South of Ballona Creek and 3 North of Ballona Creek.	Total Coliform, Escherichia coli (E. coli), Enterococcus.										
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	894816	1.1	Amended	Kent Vian	Asst. Deputy Director		11-JUN-24	11-JUN-24	Monthly Category 3 Spill	NOT-40201102554-4422 YERBA SANTA DR.	05/12/2024 11:34	05/12/2024 12:11	05/12/2024 12:30				SPILL ORIGINATED FROM MANHOLE # 152 EQ# 10749728	32.77784	-117.09479	Manhole	NOT APPICABLE	NOT APPLICABLE	233	SEWER DISCHARGE EXITED MANHOLE #152 AND HEADED EAST IN CANYON AND SETTLED IN CANYON.	N	NOT APPLICABLE	0				0	Unpaved Surface	NOT APPLICABLE	SEWER DISCHARGE EXITED MANHOLE #152 AND HEADED EAST IN CANYON AND SETTLED IN CANYON.	Y	32.77784	-117.09479							05/14/2024 06:52	VISUAL CALCULATED METHOD/DURATION AND FLOW TO CALCULATE THE SPILL VOLUME AND THE AMOUNT RECOVERED.	START TIMES ESTIMATION WERE ASSUMED WHEN THE CONSUMER CALLED IN AND REPORTED THE SPILL TO THE CITY DISPATCH.	Root Intrusion		Gravity Mainline	NOT APPLICABLE	Vitrified Clay	NOT APPLICABLE	72	IMPACTS OF THE SPILL WERE TO THE CANYON AROUND THE MANHOLE ONLY.	N	Mitigated Effects of Spill (specify below); Restored Flow	NOT APPLICABLE	CREWS RESPONDED TO CALL RELIEVED STOPPAGE, TRACKED FINAL DESTINATION, FLUSHED 2UP AND 2DOWN, CCTV MAINS 2UP 2DOWN TO DETERMINE THE CAUSE OF SPILL.	Inspected Sewer Using CCTV to Determine Cause	NOT APPLICABLE	CREWS RESPONDED TO CALL RELIEVED STOPPAGE, TRACKED FINAL DESTINATION, FLUSHED 2UP AND 2DOWN, CCTV MAINS 2UP 2DOWN TO DETERMINE THE CAUSE OF SPILL.		05/12/2024 15:27	THE CCTV CREWS INSPECTED THE MAIN AND DETERMINED THE CAUSE TO BE ROOTS.		NO	05/12/2024 15:27														NOT APPLICABLE	NOT KNOWN AT THIS TIME	THE MANAGEMENT TEAM WILL HAVE MEETING TO DISCUSS IF INCREASING THE CLEANING FREQUENCY IS NEEDED TO PREVENT A REOCURRENCE OF SPILL.	NOT APPLICABLE	THE CCTV CREWS INSPECTED THE MAIN AND DETERMINED THE CAUSE TO BE ROOTS.	NOT APPICABLE	NOT APPLICABLE	NOT APPLICABLE	NO	
8	8SSO10583	Active	La Habra City CS	La Habra City	894820	1.1	Certified	Brian Jones	Utilities Manager		14-MAY-24	14-MAY-24	Category 1 Spill	Colfax and Francis	05/06/2024 07:20	05/06/2024 07:30	05/06/2024 07:10		-		Spill appeared at manhole C110009 at/near 610 N. Colfax	33.9373	-117.93094	Manhole			780	Spill flow went north towards Essex St. and to the eastern curb, initially, where it ponded due to a low spot in the curb and gutter.  When head was sufficient, excess flow traveled southbound in the eastern curb to a storm drain on the northeast corner of N. Colfax and Francis.  The storm drain was/is covered with felt due to a local project.	Y	Felt-covered catch basin on the northeast corner of N. Colfax and Francis	0	100	NA		680	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Spill flowed northerly from manhole C110009 and easterly to curb and gutter.  Due to low spot in curb, flow was retained until head permitted southerly flow to felt covered catch basin at N. Colfax and Francis.	Y	33.93743	-117.93067	33.93615	-117.93064					05/06/2024 08:00	Pick hole chart and measurement of water contained along curb and gutter by calculating triangular area x length.	estimated that spill occurred approximately 10 minutes prior to our notification.	Debris from Lateral; Other (specify below)	Protruding lateral that was cut by others and not retrieved from sewer main.	Manhole		Vitrified Clay		65	Spill flowed to curb and gutter, catch basin and then RCP storm drain system.  No impact.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Established berm along curb and gutter to contain spill.  Cleared sewer main and sanitized the surface area contacted by the SSO.	Inspected Sewer Using CCTV to Determine Cause		Discovered and removed interfering portion of protruding lateral.  Liner had been cut previously and allowed to flow downstream.  Crew is evaluating sewer main above the spill point to possibly identify a lateral with a new liner and will evaluate front yards for excavating.	NA	05/07/2024 11:25	Staff discovered a newly installed lateral liner and excavation above the spillpoint.	N			San Gabriel River	River		Coyote Creek flood control channel joining San Gabriel River approximately 15 miles from point of spill.	None	Other (specify below)	None	NA	0	N	N												
5F	5SSO11656	Active	Pinedale CWD CS	Pinedale CWD	894823	1.0	Work In Progress						Monthly Category 3 Spill	Palm and Sierra	04/05/2024 14:20	04/05/2024 14:30	04/05/2024 14:00				clear water was coming up through the manhole, heading toward the gutter	36.82822	-119.80826	Gravity Mainline; Manhole			300	none taken	N						300	Paved Surface		Paved surface around the manhole										04/05/2024 14:50	We do not have any way to meter our sewer system.  The estimate was a best guess.	Eye witness when the over-flow began.  Operators present when the over -flow was mitigated.	Debris-wipes/Non-disposables		Gravity Mainline		Polyvinyl Chloride (PVC)		30	no impact	N	Cleaned Up (specify below)		bleach and water	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		Section of the sewer is scheduled to be replaced with the month																				none	Section of the sewer is to be replaced	Location was added to bi-monthly hydrojetting schedule	To be placed within the month	none as of yet					
3	3SSO10324	Active	Santa Cruz County CS	Santa Cruz County Public Works	894825	1.2	Certified	Ramon Sandoval	Assistant Superintendent 	14-MAY-24	16-MAY-24	16-MAY-24	Category 1 Spill	4980 Cliff Dr	05/11/2024 08:15	05/11/2024 08:37	05/11/2024 07:10	05/11/2024 09:08	24-2710		Spill originated out of manhole CG68 through ring and cover gap opening. See attached photos.	36.97147	-121.95382	Manhole			1332	From manhole CG68 out of gap between ring and cover directly onto paved surface area, 72 feet to a drainage swale directly onto the Capitola Beach. During that time, it was high tide and spill went directly into the ocean waters. See attached photos.	N				From drainage swale directly into the ocean waters during high tide. See attached map.	1332	5	Paved Surface; Surface Water		Onto paved surface area 72 feet to a drainage swale directly onto the Capitola Beach during high tide and reached ocean waters.	Y	36.97078	-121.95378							05/11/2024 08:47	The spill flow rate and volume determination based on flow around the ring and cover of a manhole was used to determine volume spilled. Five gallons of combined rags and some liquid around the manhole were recovered.	Reporting party first noticed his plumbing was not working and walked outside to investigate and noticed that manhole CG68 was starting to gradually spill out of the pick hole, he continued to monitor the spill and from 0710am to 0725am it continued to gradually spill and then just after 0725am it increased to flow coming out around the ring and cover gap about 2 inches in height, only half of the ring and cover was spilling during the spill event. At 0847 stoppage was cleared using high pressure jetting.	Debris-Rags; Fats, Oil and Grease (FOG); Other (specify below)	Sewer main sag 60 feet downstream from manhole CG45.	Gravity Mainline; Other (specify below)	The blockage occurred at the transition point between the existing ductile iron sewer pipe and PVC pipe at approximately 60 feet downstream of MH CG45.  The PVC pipe was installed in 2019 and the DI pipe is planned to be replaced in 2026.	Ductile Iron; Polyvinyl Chloride (PVC)		86	Warning signs were posted on the Capitola beach where spill reached reading Warning contaminated water unsafe for swimming or water contact.  	N	Cleaned Up (specify below); Other (specify below); Other Enforcement Agency Notified; Restored Flow	Cal OES and Environmental Health were also notified.	Minimal cleanup was performed around the manhole. Most of the spill went directly into the ocean waters.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Plan Rehabilitation or Replacement of Sewer	Public outreach mailer was sent out. See attachment.	Installed a Smart Cover monitoring system to monitor flow levels. Field crew noticed that the structures near the spill needed manhole lining. Will work with a contractor to line the recommended structures.	Year 2026 for pipe replacement.	05/14/2024 12:00	CCTV was performed, field crews identified a sag 60 feet downstream from manhole CG45 with some grease deposits. It was identified that heavy rags and debris contributed from an upstream hotel and collect in the channel of the manhole structures and eventually flow downstream towards the sag and form a blockage.	N			Monterey Bay 	Ocean		Capitola Beach.	None, see attached monitoring results.	Temporary Restricted Use		County of Santa Cruz	3	Y	Y	See attachment	See attachment										
2	2SSO11533	Active	SLAC National Accelerator Laboratory CS	US Dept of Energy	894827	1.3	Certified	Josephine Folger	Civil engineer	15-MAY-24	28-MAY-24	28-MAY-24	Category 1 Spill	West Campus Trunk Line	05/13/2024 15:24	05/13/2024 15:24	05/13/2024 15:20		-		See attachment	37.417503	-122.206465	Lateral Clean Out (Private); Manhole		The lateral to B003 initially overflowed from the cleanout. While clearing the obstruction that caused the B003 cleanout overflow, MH70 overflowed. 	115	See photos and diagram attached	Y	Approx. 5 gallons entered CB 29E-1. From here the storm drain travels underground approx. 0.3 miles through increasingly deep pipes before daylighting at the IR-8 drainage channel. The IR-8 channel is located on a steep vegetated slope with no nearby power.   SLAC evaluated adding sandbags or a sump pump to the channel to try to intercept the sewage, but ultimately determined it was not feasible from a safety and access perspective. Additionally, due to the distance between the catch basin and IR-8 channel, it is unclear how much of the estimated 5 gallons of sewage water actually reached the channel, as it may have evaporated.   IR-8 channel flow enters two natural biofiltration wetlands before leaving SLAC facility, and it is anticipated these natural barriers will help neutralize any small quantity of sewage that may have reached these wetlands.  	0	5	IR-8 drainage channel, see photos. 	5	95	Drainage Conveyance System that discharges to surface water; Paved Surface; Unpaved Surface		B003 cleanout (pooled in grass around cleanout), B026 parking lot, and catch basin CB 29E-1	Y	37.417475	-122.206502							05/13/2024 15:30	Visual estimation based upon dimensions and depth of water	Personnel were working nearby and promptly called the spill in	Flow Exceeded Capacity (Separate Collection System Only); Root Intrusion		Manhole; Upper Lateral		Vitrified Clay		60	Area was cordoned off until cleanup was complete. Bathrooms in several nearby buildings were closed until the obstruction could be removed. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned Portion of Spill to Sanitary Sewer System		Immediately following the spill, a team of nearly a dozen response personnel opened up several downstream catch basins to determine if materials could be deployed to intercept the spill, but due to the depth of the catch basins this was determined to be infeasible.   Response personnel also visited the IR-8 drainage channel, which continuously flows year-round, and evaluated adding sandbags or a sump pump to the channel to try to intercept the ~5 gallons of sewage, but ultimately determined it was not feasible from a safety and access perspective.   At the location of the spill, liquids were pushed back into manhole 70 with push brooms and squeegees. Absorbent clay was poured on the remaining liquids. The clay was swept up and drummed for disposal. The surface pavement was then pressure washed and disinfected.   Grass surrounding the B003 cleanout will continue to be cordoned off for a period of time to allow natural disinfection via sunlight following San Mateo County guidance. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		Contractors jetted downstream of manhole 70 to ensure there were no additional blockages on 5/14/24.   CCTV is being scheduled for several segments to confirm no additional obstructions in the line.   SLAC is revising the sanitary sewer preventative maintenance scope and schedule to prevent recurrence.  SLAC is preparing to replace or repair the 4� diameter lateral from B003 cleanout to manhole 77.	CCTV of the line � 5/31/24  Revisions to subcontract services for annual preventative maintenance-10/1/24 (contract renewal date) 	05/21/2024 11:15	Investigation is pending CCTV of the impacted line but cause is suspected to be root intrusion.	Y	CCTV of impacted lines is being scheduled. 	05/31/2024 20:00	San Francisquito Creek	Stream/Creek		The 5 gallon spill entered SLAC�s storm drain system at catch basin CB 29E-1. From there, stormwater is conveyed through a series of underground pipes before being released to the IR-8 drainage channel.   From the IR-8 drainage channel, stormwater eventually flows to San Francisquito Creek. San Francisquito Creek flows from west to east roughly parallel to the SLAC southern and eastern borders. Adjacent leaseholders separate SLAC property from the creek along SLAC�s entire boundary. At no place does SLAC discharge directly to the creek. 	None	Other (specify below)	None	N/A	0	N	N											CCTV of impacted lines is being scheduled. 	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	894834	1.1	Certified	Kent Vian	Asst. Deputy Director		11-JUN-24	11-JUN-24	Monthly Category 3 Spill	NOT# 40201102862 - MUNDA RD. & ALLEGHANY ST.	05/13/2024 09:16	05/13/2024 09:36	05/13/2024 09:15				THE SPILL ORIGINATED FROM A MANHOLE ON AN EASEMENT BEHIND 6058 ROCK ISLAND RD.	32.68173	-117.06146	Manhole	N/A	N/A	900	SPILL BOUNDARIES WERE WHERE THE SPILL APPEARANCE POINT WAS, AND UP TO 5794 ALTAMONT DR., WHERE SEWER WAS VACCUMED FROM THE STORM DRAIN.	Y	THE STORM CONVEYANCE SYSTEM WAS DRY AND CONCRETE.	770				770	Drainage Conveyance System; Unpaved Surface	N/A	THE SPILL TRAVELED NORTH, DOWN A DIRT HILL WITH AN ICE PLANT, TRAVELED WEST INTO A DRY CONCRETE CHANNEL, INTO AN ENCLOSED STORM DRAIN, TRAVELING WEST UNTIL THE SEWER WAS CAPTURED AND CONTAINED IN FRONT OF 5794 ALTAMONT ST. 	Y	32.67994	-117.06898							05/13/2024 10:00	THE SPILL VOLUME ESTAMATIONS WERE CALCULATED USING THE VISUAL CALCULATION METHOD.	THE SPILL START TIME WAS ASSUMED AT THE TIME REPORTED TO THE CITY'S DISPATCH CENTER.	Fats, Oil and Grease (FOG)	THE SPILL WAS CAUSED BY A GREASE STOPPAGE 5' UPSTREAM OF EQ# 10774358.	Gravity Mainline	N/A	Vitrified Clay	N/A	72	THE IMPACTS OF THE SPILL WERE TO A DIRT HILL AND A STORM DRAIN.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	CLEAN UP- CREWS PICKED UP SOLID DEBRIS AROUND THE OVERFLOWING MANHOLE.	CONTAINED FLOW FROM MH 91 AND MH 92 STOPPED SPILLING WHILE ANOTHER CREW STARTED TO RELIEVE THE BLOCKAGE FROM MH 72. CREWS TRACKED DOWN THE SEWER IN A STORM DRAIN AND SET UP CONTAINMENT WHILE ANOTHER TRUCK INTRODUCED CLEAN WATER INTO THE STORM DRAIN.	Inspected Sewer Using CCTV to Determine Cause	N/A	THE SPILL CORRECTIVE ACTION TAKEN WAS TO RELIEVE THE GREASE BLOCKAGE USING A COMBINATION TRUCK�NO MAJOR MILESTONES AT THIS TIME.		05/13/2024 18:00	THE CAUSE OF THE SPILL WAS A GREASE STOPPAGE 5' UPSTREAM OF EQ# 10774358.		N/A	05/14/2024 10:00														N/A	UNK	UNK	UNK	INSPECTED SEWER MAINS USING CCTV.	UNK	UNK	UNK	N/A	
6A	6SSO11113	Active	So. Tahoe Public Utility Dist. CS	South Tahoe PUD	894835	1.1	Certified	Richard Jones 	Underground sewer supervisor 		21-MAY-24	21-MAY-24	Monthly Category 3 Spill	4 FT off road way in the dirt 	05/10/2024 10:41	05/10/2024 11:00	05/10/2024 07:30				Liberty Energy used an auger to place a new power pole. they hit the main and did not know it. They then placed the power pole.	38.85893	-119.99669	Other (specify below)	Around the new power pole 		80	The power pole had sewage all around it	N						80	Unpaved Surface		Liberty power hit our main with there auger machine and then placed a new power pole which disrupted our sewer flow.										05/10/2024 11:19	Eye site of the puddle around the power pole and  judging by the amount of flow on the line.	Amount of very little flow 	Damage by Others Not Related to Collection System Construction/Maintenance	Liberty Energy 	Gravity Mainline		Other (specify below)	AC	60	Liberty Energy adjusting there new power pole to accommodate my crew to excavate and make the fix.	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	adjust power pole away from sewer main	When our Hydro Vac arrived on site we immediately hydro vaced the upstream manhole to stop the flow down stream which was where the main was compromised.  	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Liberty Energy Moved there pole away from the sewer main	Enforce Hand digging 		05/10/2024 17:10	Local neighbor call STPUD and said there was smelly water off the side of the road. I arrived and opened the upstream manhole, it was surcharged as I looked to the side of the road and noticed a new power pole put in place with sewage around it,  I was only lead to believe it had to of gone through the sewer main. I called my crew they came with a hydrvac which we then sucked out the manhole up stream to stop flow down stream where our main was compromised. liberty arrived and suspended there power pole as our crews excavated the area to preform the fixing of the sewer main. Liberty the adjusted there power pole and then we filled in the hole with base material. we then CCTVed our main all looked good just some dirt in the line further down stream.  THIS MAIN WAS INSIDE THE USA DIGS MARKS.   		CCTV and cleaning out all the dirt that got in our sewer main	05/15/2024 17:30														STPUD did all the clean up and returned all sewer to sanitary sewer system, STPUD also repaired 2ft of main.	Ask Liberty Energy	No, this is on Liberty Energy	None at this time	We CCTV inspected our fix and it looks perfect.	None at this time	None at this time	None at this time	CCTV and cleaning out all the dirt that got in our sewer main	
4	4SSO10376	Active	Claremont City CS	Claremont City	894843	1.4	Certified	Kristin Mikula	Community Services Manager	15-MAY-24	20-MAY-24	20-MAY-24	Category 1 Spill	Vista and Notre Dame	05/09/2024 16:50	05/09/2024 17:10	05/09/2024 14:45		-		The spill appeared at the manhole located at Vista and Notre Dame	34.08672	-117.72283	Manhole			800	The spill appeared at the manhole and made its way to the MS4 system.	N	Spill was isolated to street, curb and gutter. 	0	800	The spill appeared at the manhole and discharged on the street, curb and gutter.  The blockage was quickly addressed by the City's operator to stop the flow.  	800	0	Street/Curb and Gutter (2 3)		Vista and Notre Dame	Y	34.08673	-117.7228							05/09/2024 17:44	Manhole sewer overflow picture chart utilized to estimate gallons per minute.  Gallons per minute was multiplied times the time elapsed between the spill start time and end time. 	Manhole spill picture chart used to estimated gallons per minute	Root Intrusion	Root in mainline which was removed from the system	Gravity Mainline		Vitrified Clay		60	Sewage discharged to drainage conveyance system	N	Cleaned Up (specify below)	Sanitized area where flow occurred	Staff was immediately dispatched, cleared the blockage, attempted to contain spill, and cleaned up / sanitized area where flow occurred to 	Added Sewer to Preventive Maintenance Program	Quarterly cleaning and inspection	Increase jetting frequency	ongoing 	05/09/2024 09:48	Investigation revealed that a root obstruction in the mainline caused the spill	N			Chino Creek (460)	Other (specify below)	Chino Creek (460)	Chino Creek (460) 	None	Other (specify below)	N/A	N/A	0	N	N												
5S	5SSO10895	Active	City Of Jackson CS	Jackson City	894847	1.2	Certified	Bree Wilder	Public Works Superintendent 	15-MAY-24	15-MAY-24	15-MAY-24	Category 2 Spill	Ralph's Alley	05/13/2024 09:16	05/13/2024 10:18	05/11/2024 09:00		-		Mainline CO-H026A: Located on the southern shoulder of Ralph's Alley on the edge of the roughly paved surface  211 Hoffman St. Private Lateral Clean Out: Located on the Southern shoulder of Ralph's Alley Approximately 5'SW and upstream from CO-H026A in the dirt surface. 	38.352	-120.77714	Lateral Clean Out (Private); Other (specify below)	Mainline Clean Out		2467	From the Appearance points of CO-H026A and 211 Hoffman St. private lateral clean out the spill flowed in an easterly direction downhill on the southern side of Ralph's Alley for approximately 160' where it dissipated on the road's surface. It was estimated that over the course of the spill at a rate of 1gpm 2467 gallons spilled in total.  The spill traveled as a 1-2' wide stream. Due to the roughly paved road a very small portion of the spill crested the middle of the road during time periods of higher flow causing a small portion of the spill to enter a catch basin located on the northern side of Ralph's Alley. (See Photos). It was estimated during the highest flow time periods that 5% of the volume spilled between 6am and 12pm or a total of 53 gallons was able to enter the storm drain at a rate of .065gpm.	Y	There are 3 catch basins in line with one another on the northern side of Ralphs Alley. A portion of the spill made it into the closest catch basin 103' downhill to the NE. The spill volume that entered the catch basin soaked into organic materials(leaves dirt, gravel, etc) then began flowing through the 6  corrugated steel storm drain to the next catch basin 25' to the east. The second catch basin also had organic materials but was dry. Due to the flow being so low into the 1st catch basin we believe the spill dissipated within the corrugated steel pipe.	5	48			5	Drainage Conveyance System; Paved Surface; Unpaved Surface		From the Appearance points of CO-H026A and 211 Hoffman St. private lateral clean out the spill flowed in an easterly direction downhill on the southern side of Ralph's Alley for approximately 160' where it dissipated on the road's surface. It was estimated that over the course of the spill at a rate of 1gpm 2467 gallons spilled in total.  The spill traveled as a 1-2' wide stream. Due to the roughly paved road a very small portion of the spill crested the middle of the road during time periods of higher flow causing a small portion of the spill to enter a catch basin located on the northern side of Ralph's Alley. (See Photos). It was estimated during the highest flow time periods that 5% of the volume spilled between 6am and 12pm or a total of 53 gallons was able to enter the storm drain at a rate of .065gpm.	Y	38.352	-120.77716							05/13/2024 10:35	Spill volumes were calculated using the upstream lateral connection method w/ winter water use data for those specific upstream customers. Also, the eye ball method was used in conjunction with the volumes and flow rates determined in the upstream lateral connection method to determine the volume of the spill that entered the storm drain system. Attached Ralph's  Alley SSO Volume Calculation.	Inter view with the witness and the time the public works crew restored flow.	Debris-wipes/Non-disposables		Gravity Mainline		Vitrified Clay		60	At the Appearance points of CO-H026A and 211 Hoffman St. private lateral clean out the spill initially soaked into the soil in the immediate area approximately 10sqft. Then flowed as a 1-2' wide stream in an easterly direction downhill on the southern side of Ralph's Alley for approximately 160' where it dissipated on the road's paved surface. It was estimated that over the course of the spill at a rate of 1gpm 2,467 gallons spilled in total.  Due to the roughly paved road a very small portion of the spill crested the middle of the road during time periods of higher flow causing a small portion of the spill to enter a catch basin located on the northern side of Ralph's Alley. (See Photos). It was estimated during the highest flow time periods that 5% of the volume spilled between 6am and 12pm or a total of 53 gallons was able to enter the storm drain at a rate of .065gpm.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Upon arrival of public works crew, waddles were placed around CO-H026a and the 211 Hoffman private lateral. The crew inserted a gas powered rodding tool with a 4in root saw into CO-H026a. At 10:35am flow within the system was restored. The plug consisting of non-flushable wipes was found approximately 10' downstream of CO-H026a. The crew continued rodding the line approximately 30 ' past the plug. The line was then flushed for 10 minutes. The saturated soil was removed. The pavement was treated with a bleach solution for the entirety of the affected area. The catch basins were shoveled out and disinfected. 	Inspected Sewer Using CCTV to Determine Cause		Public works plans to notify upstream residents of the issues with flushing wipes. The line is currently being CCTV'd and cleaned on a quarterly basis.	ASAP: Notification door tags regarding what not to flush June 2024: Quarterly cleaning and CCTV	05/13/2024 10:35	During the restoration of flow non-flushable wipes/rags were found and extracted by the rodder tool.	N												N													
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	894857	1.4	Certified	Ameal McLaurin	Sewer Supervisor 2		16-MAY-24	16-MAY-24	Monthly Category 3 Spill	6789 Evergreen Ave, Oakland Ca	05/11/2024 14:00	05/11/2024 16:00	05/10/2024 07:00				Buried manhole on easement overflowing sewage on a hillside.	37.83344	-122.18718	Manhole			527	Buried manhole on easement overflowing sewage on a hillside. The sewage soaked into the soil.	N						0	Unpaved Surface		Buried manhole on easement overflowing sewage on a hillside. The sewage flowed on the hillside and soaked into the soil.										05/11/2024 18:37	40'L x 3'W x 3'D x 7.48-gal x .1875 = 505 gallons 2'L x 2'W x 4'D x 7.48-gal x .1875 = 22 gallons Total spill: 505 + 22 = 527 gallons	Start time was based on eyewitness account. The end time was based on responding sewer crew restoring the flow in the mainline.	Damage by Others Not Related to Collection System Construction/Maintenance; Root Intrusion		Gravity Mainline		Vitrified Clay		12	Buried manhole on easement overflowing sewage on a hillside. The sewage flowed on the hillside and soaked into the soil.	N	Cleaned Up (specify below); Restored Flow	Raked and hauled away the contaminated spoils.	Raked and hauled away the contaminated soils. Disinfected the affected areas.  	Added Sewer to Preventive Maintenance Program		Mainline has been added to 6-month high frequency hydro maintenance program., work order number 1525837.		05/13/2024 12:40	Sewer crews found root intrusion blockage to had been the cause of the spill. CCTV found broken piece of pipe where the root intrusion was found. Construction work order number 1525365 has been created to dig and make a spot repair on the mainline.		N/A	05/31/2024 12:40														N/A	Mainline has been added to 6-month high frequency hydro maintenance program, work order number 1525837.	Mainline has been added to 6-month high frequency hydro maintenance program, work order number 1525837.	Construction work order number 1525365 has been created to dig and make a spot repair on the mainline.	CCTV inspection was completed on 5/13/24, work order number 1525255. Construction work order number 1525365 has been created to dig and make a spot repair on the mainline.	N/A	Mainline has been added to 6-month high frequency hydro maintenance program, work order number 1525837. CCTV inspection was completed on 5/13/24, work order number 1525255. Construction work order number 1525365 has been created to dig and make a spot repair on the mainline.	Mainline has been added to 6-month high frequency hydro maintenance program, work order number 1525837. CCTV inspection was completed on 5/13/24, work order number 1525255. Construction work order number 1525365 has been created to dig and make a spot repair on the mainline.	N/A	
2	2SSO10184	Active	San Rafael SD CS	San Rafael Sanitation District	894858	1.2	Certified	Doris Toy	District Manager	15-MAY-24	02-JUN-24	02-JUN-24	Category 1 Spill	271 Clorinda	05/13/2024 10:57	05/13/2024 11:33	05/12/2024 18:30	05/13/2024 13:13	24-2737	31-MAY-24	This was called in as an odor complaint.  Upon arrival our crews found the manhole surcharged and then witnessed water coming out of the ground into a nearby drainage ditch	37.9690332823	-122.541701141	Other (specify below)	rock embankment along drainage ditch		2879	Attached a video of effluent entering drainage ditch	Y	The drainage in this area included buried pipes and exposed drainage ditches.  	1019	1860	Surface waters downstream did not show evidence of the spill	1860	1019	Surface Water		The original call came in as an odor complaint.  When our crews arrived they found a manhole nearby surcharged but not overflowing.  After interviewing the caller and neighbors they found out it had started the previous day so they began to look around for where the water may be going and found it coming out of the ground and into a nearby drainage swale.  This drainage swale eventually enters San Rafael Creek downstream.	Y	37.9690332823	-122.541701141							05/13/2024 13:05	Calculated by counting upstream lateral connections and using our worksheet based on start and stop time.  See attached 	We originally called this in as 363 gallon spill based on the start time when we received the call but after contacting the caller it was determined  the odor began the day before during their sons birthday party.  	Pipe Structural Problem/Failure - Installation	After clearing the blockage we televised the pipe and found it occurred at a blind tie where two sewer mains intersect without a manhole overhead to access.	Gravity Mainline	The blockage at the blind tie where the pipes connected collapsed.  	Vitrified Clay		73	We inspected the San Rafael Creek and did not find any evidence of the spill.  	N	Cleaned Up (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		The drainage swale had insect activity, odor and a film forming over standing water which was rinsed and collected downstream in the drainage pipes before it enters the San Rafael Creek.	Repaired Facilities or Replaced Defect		The following day 5/14/2024 we had a contractor excavate over the collapsed pipe and complete a temporary repair.  The following week they came back and installed a manhole over blind tie.	The repairs for this location have been completed.  5/20/2024	05/13/2024 15:40	Immediately after clearing the blockage we CCTV the pipe and found where the collapse occurred.	N			San Rafael Creek	Stream/Creek		This is a creek that drains to the San Rafael Canal	No impacts on aquatic life	Other (specify below)	There is no public access to this creek	Marin County Environmental Health Services	0	N	N												
2	2SSO10104	Active	Ccsf - San Francisco Airport CS	CCSF - San Francisco Airport	894862	1.1	Certified	Jennifer Acton	Director of Maintenance		29-MAY-24	29-MAY-24	Monthly Category 3 Spill	Gates D2 & D3 Sewage Ejector Pump Station	04/25/2024 13:15	04/25/2024 13:17	04/25/2024 13:10				Spill originated from a sewage ejector pump station wet well.	37.61724	-122.38203	Pump Station			107	Spill flowed from the pump station onto the paved surface, downgradient towards the west and the east. 	Y	A portion of the spill entered a nearby storm drain catch basin and was contained within the basin.  The volume that entered the storm drain catch basin collected at the bottom of the catch basin and did not flow down stream.	34				107	Drainage Conveyance System; Paved Surface		Spill flowed from the pump station onto the paved surface, downgradient towards the west and the east.  A portion of the spill entered a nearby storm drain catch basin at the east end.	Y	37.61802	-122.3822	37.61717	-122.38225	37.61723	-122.38198	37.61716	-122.3819	04/25/2024 13:20	Spill volume calculated using field measurements collected on scene by the Airport spill team member who responded to the spill incident. 	Spill times estimated using information provided by responding parties on scene.	Debris-General; Debris-Rags; Debris-wipes/Non-disposables; Pump Station Failure - Mechanical		Pump Station - Mechanical		Other (specify below)	Unknown.  Failure occurred within the pump system.	0	Spill impacted the paved surface area surrounding the pump station and entered one storm drain catch basin	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Airport Facilities departments responded and deployed spill booms to control spill on the paved surface.  Mechanical maintenance crew inspected and performed investigation of sewage ejector pump station.   Mechanical Maintenance used a portable pump to pump down the sewage ejector pump station wet well and reset the pump to restart and restore flow to the sanitary sewer system.  Spill Team member collected field measurement for calculating spill volume.  Spill Team contacted the Airport scrubbing contractor to mobilize to site and clean the impacted paved surface.  Airport Plumbing department used vactor truck to rinse and pump out sewage from affected storm drain catch basin.  All wastewater was returned to the sanitary sewer system for processing.	Other (specify below)	New redundant sewage ejector pump ordered.  Pump to be installed after delivery. 	New redundant sewage ejector pump ordered.  Pump to be installed after delivery.  		04/29/2024 04:00	Facilities Mechanical Maintenance department inspection and investigation determined that rags, wipes and general debris caused the sewage ejector pump to have a mechanical failure.  		NA	04/25/2024 14:00														NA	NA	Facilities department is scheduled to perform regular monitoring of pump operation until new pump installed.  Portable pump staged next to pump station as pump bypass in case of pump station pump failure while waiting for installation of new sewage ejector pump.	New redundant sewage ejector pump to be installed.	New redundant sewage ejector pump to be installed.	NA	NA	NA	NA	
9	9SSO10662	Active	County of San Diego CS	San Diego County Dept of Public Works	894868	1.2	Certified	William Morgan	Interim Director		27-JUN-24	27-JUN-24	Monthly Category 3 Spill	9811 Date St	05/14/2024 16:37	05/14/2024 17:16	05/14/2024 15:45				Private clean out located @ 9811 Date St. Spring Valley Ca. 	32.72001	-116.98713	Lateral Clean Out (Private)			105	Spill remained on unpaved area on private property and absorbed into the ground.	N						0	Unpaved Surface		Spill traveled approximately 10' from the private clean out within a landscaped area, terminating at the base of a small rock wall	Y	32.71994	-116.98709							05/14/2024 17:30	Spill duration X visual observation of spill volume	Spill volume combined with area of spill absorption into the unpaved surface	Root Intrusion		Gravity Mainline		Vitrified Clay		58	Minimal impact, spill absorbed into unpaved dirt	N	Mitigated Effects of Spill (specify below); Restored Flow		Remove blockage, restored flow to gravity main. Disinfect area of spill. No paper or solid debris identified in spill area.	Inspected Sewer Using CCTV to Determine Cause		CCTV subject gravity main and adjoining gravity mains to inspect for existing roots and debris. Clean with by hydraulic means as necessary.		05/15/2024 15:33	Hydraulic cleaning of affected gravity main with trap in place to capture any debris causing the blockage. Review trapped debris after blockage was cleared to identify debris type. CCTV subject main where blockage occurred and adjoining gravity mains for potential additional issues. Clean and remove any identified discrepancies as needed. 		Review CCTV footage from follow up inspections	05/16/2024 16:28														N/A	Continue preventative maintenance program.	None	None	Inspected five gravity main segments immediately adjoining subject gravity main	None	None	None	Review CCTV footage from follow up inspections	
2	2SSO10179	Active	San Jose City CS	San Jose City	894877	1.1	Certified	Ben Nguyen	Senior Engineer		28-JUN-24	28-JUN-24	Monthly Category 3 Spill	5341 Lassen Ave, San Jose, CA 95129	05/10/2024 14:06	05/10/2024 14:45	05/10/2024 12:30				The spill appearance point was a sanitary manhole in front of the property at 5341 Lassen Ave in San Jose, CA. Upon crew arrival, the spill had stopped overflowing and did not overflow again during the response and restoration of flow. A picture of the spill appearance point is included in the Attachments Tab.	37.297820991131	-121.995825562436	Manhole			105	The spill discharged from the sanitary manhole and traveled along the curb/gutter reaching a nearby storm catch basin.  Upon crew arrival, the spill appearance point had stopped overflowing and the plug was cleared in the mainline shortly after. The Crew contained the spill on the surface using sandbags. During the response, the Crew also found a dry storm manhole downstream at the intersection of Englewood drive and Brenton Ave.  No sign of sewage found and an ammonia test strip showed no concentration (0 ppm) within the standing water in storm drainage system at this location. Pictures and a map of the spill extent are included in the Attachments Tab. 	Y	The spill a reached a nearby storm inlet approximately 205 ft from the spill appearance point. This storm inlet is connected to the City of San Jose's municipal separate storm sewer system. The sewage traveled within the storm system to a storm manhole on Englewood drive and Brenton Ave where no signs of sewage found. In this storm drain manhole, an ammonia test strip showed no concentration (0 ppm) in the standing water in storm drainage system at this location. Sandbag containment was also placed in this storm manhole for containment. Pictures of the storm drain conveyance system and a map of the spill path is included in the Attachments Tab. 	85				105	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		The spill (sewage) traveled along the street and curb/gutter from the manhole (spill appearance point). The manhole is identified in 11.d. and 11.e. The spill reached and traveled along the curb and gutter, then entered City's storm inlet and drainage system. The location of the storm drain inlet is identified in 11.f and 11.g. The Crew was able to determine a  spill end point  in the storm drain conveyance system and used sandbags for containment in the nearby storm manhole. Coordinates for the containment in the storm system manhole are identified in 11.h and 11.i.	Y	37.297820991131	-121.995825562436	37.29763640025	-121.995104319103	37.300715937599	-121.991362635811			05/10/2024 14:45	The total and recovered spill volume was estimated using measurements from the responding Crew. On land, the Crew recorded spill measurements along the curb/gutter and on the asphalt. In addition, the Crew recorded spill depths within the storm drain conveyance system pipes from the inlet to the sandbag containment in storm drain manhole #651.	The reporting party first noticed the spill on 5/10/2024 at 13:00. At that time, the reporting party stated that the spill had not yet reached the nearby storm drain inlet. Based on the reporting party's information, it was assumed that the SSO likely started sometime shortly before the reporting party saw the spill at 13:00 that day. The start time of the SSO is assumed to have started around 12:30 on 5/10/2024.	Debris-Rags		Gravity Mainline		Vitrified Clay		67	No impact to the CSJ waterways as the spill was contained within MS4.  No lasting impact to street/curb and gutter where overflow occurred due to maintenance staff cleaning.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Upon arrival, the responding City crew immediately placed sandbags around the nearby storm drain inlet where the spill had entered. The Crew tracked the spill in the storm drain conveyance system (MS4) and placed sandbags in a manhole where they could contain the spill and test negative for ammonia. The Crew cleared the blockage and observed rags to be the cause of the SSO. Next, the Crew began their cleanup efforts on the street and curb/gutter. Crew used two combo trucks, one flushed water upstream and other vacuumed the water at the downstream containment in the storm drain manhole. All of the spill and induced water was cleaned up from both the land and storm drain conveyance system. Pictures of the containment locations were added to the Attachments Tab.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause	Rags outreach to nearby residents	The sewer was immediately CCTV'd following the overflow event in order to determine the cause. Further corrective actions the city has planned for this segment include:  1.  Move cleaning frequency from 4 years to 1 year - Completed on 5/22/2024 2. The mainline will be videoed again in 3 months in order to determine whether the current cleaning cycle will need to be revised again - scheduled for August 2024 3. The City will conduct Rags outreach to the nearby residents - scheduled for August 2024		05/10/2024 17:55	While the Responding Crew cleared the blockage in the plugged sanitary mainline, the Crew documented their findings. A pipe basket was used to collect the debris/ rags that was removed while clearing the blockage within the mainline. After conducting a follow up CCTV of the sanitary mainline pipe, there were no other major O&M observation or structural defects that may have contributed to the blockage. 		All investigation efforts concluded on 5/22/2024	05/22/2024 17:55														N/A	The city has planned the following O&M modifications to prevent any repeat of the spill event:  1. Move cleaning frequency from 4 years to 1 year - Completed on 5/22/2024	Move cleaning frequency from 4 years to 1 year - Completed on 5/22/2024 	N/A	Problem sanitary sewer asset was video inspected after the SSO on 5/10/2024. No major structural defects were found.	N/A	Documentation of implemented and planned system O&M modifications is included in the attachments tab.	NA	All investigation efforts concluded on 5/22/2024	
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	894894	1.3	Amended	Daniel Whitlock	Manager	17-MAY-24	30-MAY-24	30-MAY-24	Category 2 Spill	496 Sea Cliff Ave.	05/15/2024 12:33	05/15/2024 13:10	05/08/2024 13:02		-		Asset P-99584 pump station by 496 Sea Cliff Ave.	37.7871	-122.49164	Force Main			2535	Spill came out of the ground and ran down the hill, in front of lift station. Flow did not make it to the water or beach. Flowed and absorbed into the hillside.	N						0	Unpaved Surface		Spill originated from a hole in the ground in front of the lift station. Up the hill before the fence to driveway at 496 Sea Cliff.	Y	37.78731	-122.49162	37.78736	-122.49161	37.78744	-122.4916	37.78746	-122.49158	05/17/2024 11:00	Sea Cliff Pump station data and eyeball estimate for overland flow were used to calculate SSO Volume	Cycles 12 times a day Cycle time = 90 sec Number of days = 7 Flow rate from ground = 20 gallons per min  1.5min x 20 gpm x 12 cycles = 360 gallons per day 360 GPD x 7 days = 2520 gallons 1 hr extra (360%24) = 15 gallons 2520 + 15 = 2535 gallons total	Other (specify below)	Pipe structural problem/failure	Force Main		Cast Iron		86	Spill all contained within sandy soil and pit that was dug by response crew. Any spill that got onto paved walkway way cleaned by response crew.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other (specify below)	Contractor disposed of contaminated soil at the spill and repair location and backfilled it with new soil. Disposed of contaminated soil via Clean Harbors Environmental Services. Our response crew cleaned any spill that got onto paved walkway.	Signs posted warning public of spill. Scrubbed and cleaned up spill where we were able to. Contractor disposed of contaminated soil at the spill and repair location and backfilled it with new soil.	Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect		WO 8403456 emergency repair of force main P-599584 finished on 5/17/2024.  Rehab and replacement of force main is in the planning phase. Tentative start 2026.	Dec. 20th 2023 - Employee at pump station notices water in the pump station  March 2024 - We just get notified of the leak and dye testing of the forcemain comes back negative while dye testing of a MS4 storm drain pipe comes back positive.  5/10/2024 - Employee at pump station noticed another leak above ground and knew it was from force main  5/15/2024 - Sewer Operations notified of leak  5/17/2024 - Repairs to force main completed	05/17/2024 15:30	In August of 2023, there was a leak on the same force main that was repaired. On December 20th of 2023 an employee at the pump station noticed a leak in the pump station. We were not notified of this leak until March 2024. Once we were notified we conducted a dye test. Green dye was introduced to a storm drain that also flows in the area which showed up in the pump station. Another test for the force main was used with blue dye. No blue dye showed up in the pump station or in the MS4/Outfall. Force main dye tested twice.  On 5/10/2024 an employee at the pump station noticed another leak above ground and this time knew it was coming from the force main. Sewer Ops was alerted on 5/15/2024 and repairs to the force main was completed on 5/17/2024	N												N													
5S	5SSO11082	Active	West Sacramento CS	West Sacramento City	894895	1.2	Certified	Robert Santos	Superintendent		17-MAY-24	17-MAY-24	Monthly Category 3 Spill	820 Hardy 	05/13/2024 15:00	05/13/2024 15:05	05/13/2024 14:50				Overflowing cleanout	38.58046	-121.53023	Lateral Clean Out (Public)			67	325' of gutter	N						67	Street/Curb and Gutter (2 3)		325' of gutter 	N									05/13/2024 15:15	L x W X D	based on call and resident	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Lower Lateral		Vitrified Clay		40	Little to no impact	N	Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Used Vac truck to restore flow and clean	Other (specify below)	Educated resident	Educate resident on FOG and wipes		05/14/2024 08:06	FOG		N/A	05/14/2024 08:07														N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	
5S	5SSO11082	Active	West Sacramento CS	West Sacramento City	894896	1.0	Work In Progress						Monthly Category 3 Spill	820 Hardy 	05/13/2024 15:00	05/13/2024 15:05	05/13/2024 14:50				Overflowing cleanout	38.58046	-121.53023	Lateral Clean Out (Public)			67	325' of gutter							67	Street/Curb and Gutter (2 3)		325' of gutter 										05/13/2024 15:15	L x W X D	based on call and resident	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Lower Lateral		Vitrified Clay		40	Little to no impact		Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Used Vac truck to restore flow and clean	Other (specify below)	Educated resident	Educate resident on FOG and wipes		05/14/2024 08:06	FOG		N/A	05/14/2024 08:07														N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	894897	1.1	Certified	David Leamer	Assistant Superintendent		29-MAY-24	29-MAY-24	Monthly Category 3 Spill	341519	04/10/2024 13:45	04/10/2024 14:17	04/08/2024 15:00				See Attached Spill map with Photos.	38.56964	-121.41244	Lateral Clean Out (Public)			173	See Attached Spill Map with Photos	Y	See Attached Spill Map with Photos	169				172	Drainage Conveyance System; Unpaved Surface		See attached Spill Map with Photos.	Y	38.56968	-121.41238	38.56676	-121.41104					04/10/2024 14:17	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Root Intrusion		Gravity Mainline		Vitrified Clay		25	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Grease and roots in the mainline at east side of the property caused a SacSewer cleanout to spill. The spill from the SacSewer cleanout traveled over the driveway and into a private DI east of the property and traveled through the drainage conveyance system. The drainage conveyance system was stagnant. tested water at the following locations: �         SDMH southwest of 2325 American River Drive for upstream comparison purposes �         DI at 906 Commons Drive � presence of sewage detected �         SDMH at 938 Commons Drive� presence of sewage detected �         SDMH at the intersection of American River Drive and Commons Drive- presence of sewage detected �         SDMH at the intersection of Colby Court and Commons Drive - presence of sewage detected �         SDMH at the intersection of Adelphi Court and Commons Drive- no presence of sewage detected SacSewer crews used a hydro-vacuum truck to rinse and vacuum affected above-ground surfaces and all parts of the drainage conveyance 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected mainline with CCTV on 4/12/24. Based on findings, SacSewer increased preventative cleaning frequency to 24 months from 48 months.		04/10/2024 21:10	Grease and roots in the mainline at east side of the property caused a SacSewer cleanout to spill. The spill from the SacSewer cleanout		N/A	04/10/2024 21:10														N/A	SacSewer increased preventive cleaning frequency from 48 months to 24 months.	SacSewer increased preventive cleaning frequency from 48 months to 24 months.	N/A	SacSewer inspected mainline with CCTV on 4/12/24.	N/A	SacSewer increased preventive maintenance frequency on 5/8/24	N/A	N/A	
2	2SSO10127	Active	Delta Diablo SD CS	Delta Diablo	894909	1.2	Amended	Trevor Simpson	Maintenance Supervisor	17-MAY-24	22-JUL-24	22-JUL-24	Category 1 Spill	696 W Tenth St, Pittsburg, CA , 94565	05/16/2024 10:22	05/16/2024 10:37	05/15/2024 18:30	05/16/2024 12:00	24-2806	03-JUN-24	We believe that the majority of the spill remained in a dirt culvert, and we are waiting for test results to determine if sewage entered a storm system.	38.03157	121.89844	Other (specify below)	Our contractor suffered a bypass pumping system failure which resulted in raw sewage being discharged onto the ground.	See attachment  A 	9000	We are waiting on lab test results to confirm.	Y	We have confirmed through lab testing that sewage did enter the drainage conveyance system through the South Storm Catch Basin, from there it traveled North, to the immediate downstream North Storm Catch Basin. We tested immediately upstream and downstream from the North Storm Catch Basin and did not find evidence of Raw Sewage Contamination. We estimate that only a small portion, perhaps 50 gallons or less reached the storm catch basin.	50	0	We have confirmed by testing for ammonia that no sewage reached a surface water.	0	7500	Drainage Conveyance System that discharges to surface water; Unpaved Surface		A temporary bypass pumping system was staged in a section of dirt adjacent to a private roadway. The discharge piping dislodged from the manhole it was discharging into and sewage sprayed across the roadway and into the dirt where the bypass system was staged.	Y	38.03161	-121.898373	38.031611	-121.898419	38.031097	-121.898405	38.031097	-121.898478	05/15/2024 18:35	The spill volume estimate was based on the pumping system flowrate and the onsite bypass system operator's observations.	On 5/15/24 at or about 6:30 pm, the discharge line w/ 90 deg fitting into ROMHR5 kicked up caused by the surge of the second pump kicking in to manage the higher flows. When the 90 deg. fitting kicked, it turned up and began discharging sanitary waste onto the shoulder of the road at the job site. There was a crew onsite when this happened and it believed that the discharge line was dislodged for about 2-3 mins. Based on the Average Pump Flow Rate of 1,750 GPM, the total amount of spilled raw sewage was between 7k and 9k gallons. (1,750 GPM x 1.75 x 3 mins). After the fitting disloged, the pumps were immediately shut down in order to reposition the discharge line back into the MH. 	Construction Diversion Failure		Other (specify below)	A bypass pumping system which was discharging into an open manhole experienced an unexpected pressure increase. The additional pressure caused the discharge piping to rise from the manhole and discharge across the pavement, into the dirt culvert at the side of the road.	Other (specify below)	The pipe was made from aluminum.	1	The spill occurred on a private road at the entrance of a former power plant that is being decommissioned. The spill saturated the ground where a bypass pumping system was staged.  All soil contaminated with raw sewage was removed on 7/8/2024 at the conclusion of the bypass project.	N	Cleaned Up (specify below); Property Owner Notified; Returned All Spill to Sanitary Sewer System	We used a 6  Diesel trash pump and two 2  submersible pumps to dewater the storm water conveyance system, all of the water which we pumped out was returned to our gravity system, and treated at out TP. Using Ammonia and lab analysis, we confirmed that we recovered all spilled sewage, and that no sewage entered surface waters.  After confirming now sewage reached surface waters, we removed the soil which came into contact with raw sewage. The contractor hauled the soil away and placed it at their storge yard.	We were not notified of the spill until the morning following the event, when we arrived there were two puddles and dirt surrounding the area was damp. We had received significant rain a week prior, so there was some disagreement about what resulted from the spill, vs what was from the recent rain. Our crew vacuumed up all of the standing water and as much of the contaminated soil as there were able to. After cleaning the ground, our crew vacuumed the water from the storm catch basin we observed a positive ammonia sample from. After filling the tank completely, the level in the catch basin did not drop, so we resorted to using a trash pump to dewater the stormwater conveyance system. After dewatering the system, our lab sampled at four locations and confirmed that we removed all the contaminated water and none reached a surface water.	Other (specify below)	The contractor anchored the discharge piping to the pavement and weighted it with a concrete block so that it could not rise out of the manhole. We also required the contractor to lock out the third standby pump so that it could not be called to run under any circumstance.	The contractor secured the discharge piping to the pavement with anchors, and they weighted the piping with a large concrete block. The third standby pump was locked out so it could not be called to run automatically. A containment berm was added in front of the storm catch basin so that a future spill could not enter the stormwater system.	5/15/24 @ approximately 6:30pm SSO occurred 5/16/24 Delta Diablo notified of SSO, standing water and contaminated soil was cleaned up. 5/17/24 Stormwater Collection System was completely dewatered, and testing demonstrated negligible presence of Ammonia. 5/18/24 - 5/19/24 (2) 2  submersible pumps left in North Storm Catch Basin to remove any stormwater entering the system. 5/19/24 Field and Lab testing demonstrated that we recovered all sewage, and none reached a surface water. 7/8/2024 The soil contaminated by raw sewage was mechanically removed and hauled off for disposal.	07/08/2024 14:32	The primary cause of the SSO was improperly anchored discharge piping that dislodged when a second pump started due to higher flows. A secondary cause was the lack of a discharge stinger reaching down into the manhole, had one been employed, the discharge piping could have traveled vertically without spilling. This third mistake was not installing a berm in front of the Storm Catch Basin to prevent a spill from reaching the Storm Catch Basin.	N			We recovered the spill and returned it to our system.	Other (specify below)	Sewage entered a stormwater drainage system, but ammonia testing and lab testing demonstrated that the contaminated water was all recovered and returned to our system.	Sewage entered a portion of the stormwater drainage system, but we were able to recover and return the entire spill volume to our system. Lab analysis of the Stormwater drainage system confirmed that no sewage reached surface waters.	None	Restricted Public Access	The spill occurred on the side of a private road at the entrance of a power plant that is being decommissioned, there is limited public access to the area and no public access impact.	Delta Diablo	0	N	Y	South Storm Catch Basin - this is where sewage entered the system North Storm Catch Basin - this is immediately downstream from SSCB Northwest Storm Catch Basin - downstream NSCB Northeast Storm Catch Basin - upstream NSCB	Ammonia, Fecal Coliform, Enterococcus, E. coli										
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	894911	1.1	Amended	Kent Vian	Asst. Deputy Director		11-JUN-24	11-JUN-24	Monthly Category 3 Spill	NOT-40201104929  9535 EASTER WAY.	05/18/2024 09:44	05/18/2024 10:15	05/18/2024 10:23				THE SPILL ORIGINATED FROM MANHOLE#39 IN THE MIDDLE OF THE STREET ADDRESS 9535 EASTER WAY. 	32.87943	-117.21114	Manhole	N/A	N/A	160	THE SPILL BOUNDARIES APPEARANCE POINT WAS MANHOLE#39. TRAVEL NORTH-WEST INTO STORM DRAIN AND SETTLE INTO CAMPUS POINT OPEN SPACE CANYON.	Y	THE STORM DRAIN CONVEYANCE SYSTEM IS MADE OF CONCRETE AND IS DRY	0				0	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface	N/A	THE SPILL TRAVELED NORTHBOUND FROM THE STREET THROUGH THE CURB TO WESTBOUND INTO STORM DAIN AND SETTLED INTO THE DRY CANYON AREA.	Y	32.87943	-117.21114							05/18/2024 11:30	THE ESTIMATION IS CALCULATED BY VISUAL METHOD.	THE SPILL START TIME IS WHEN DISPATCH RECEIVES THE CALL FROM THE CONSUMER REPORTING THE SPILL.	Root Intrusion	N/A	Gravity Mainline	N/A	Vitrified Clay	N/A	57	THE SPILL IMPACT WAS TO THE STREET, CURB, STORM DRAIN, AND DRY CANYON AREA.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow	N/A	CREWS RELIVED FLOW FROM DOWNSTREAM MANHOLE#44 TRACK DOWN FINAL DESTINATION WASHDOWN STREET, CURB AND STORM DRAIN.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause	N/A	THE SPILL CORRECTION ACTION TAKEN WAS TO RELIEVE THE BLOCKAGE BY USING A COMBINATION TRUCK. MANAGEMENT WILL REVIEW AND UPDATE THE FREQUENCY TO PREVENT FURTHER SPILLS IF NEEDED. 		05/18/2024 11:30	THE CAUSE OF THE SPILL WAS ROOTS IN THE MAIN.		NO	05/18/2024 17:10														N/A	NOT AT THIS TIME.	N/A	N/A	N/A	N/A	N/A	N/A	NO	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	894915	1.1	Amended	Kent Vian	Asst. Deputy Director		11-JUN-24	11-JUN-24	Monthly Category 3 Spill	NOT-40201105034-9912 KIKA CT.	05/19/2024 11:15	05/19/2024 11:37	05/19/2024 11:52				THE SPILL ORIGINATED FROM MANHOLE#141, TRAVELING DOWN SOUTHEAST INTO THE STORM DRAIN.	32.94075	-117.11264	Gravity Mainline; Manhole	N/A	NO	252	THE SPILL BOUNDARY STARTED ON MANHOLE#141, TRAVELING ON KIKA CT TOWARDS MERCY RD INTO A STORM DRAIN AND SETTLED INTO LOS PENASQUITOS CANYON.	Y	THE STORM DRAIN SYSTEM MADE OF CONCRETE.	0				0	Drainage Conveyance System; Groundwater Infiltration Basin or Facility; Street/Curb and Gutter (2 3); Unpaved Surface	N/A	THE SPILL TRAVEL SOUTH FROM THE STREET THROUGH THE CURB EASTBOUND INTO THE STORM DRAIN.	Y	32.94118	-117.11362							05/19/2024 12:45	THE ESTIMATION IS CALCULATED BY VISUAL METHOD.	THE SPILL START TIME IS WHEN DISPATCH RECEIVES THE CALL FROM THE CONSUMER REPORTING THE SPILL.	Root Intrusion	N/A	Gravity Mainline; Manhole	N/A	Vitrified Clay	N/A	33	THE SPILL IMPACT WAS TO THE STREET, CURB, GUTTER, STORM DRAIN, AND DRY CANYON AREA.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow	N/A	CREWS RESPONDED, INVESTIGATED, RELIVED, AND TRACKDOWN FINAL DESTINATION, WASHDOWN STREET, CURB, AND STORM DRAIN.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause	N/A	THE SPILL CORRECTION ACTION TAKEN WAS TO RELIEVE THE BLOCKAGE BY USING A COMBINATION TRUCK. MANANGEMENT WILL NEED TO ADJUST THE FREQUENCY TO PREVENT FURTHER SPILLS IF NEEDED.		05/19/2024 13:40	THE CAUSE OF THE SPIL WAS ROOTS IN THE MANHOLE AND MAIN.		NO	05/19/2024 18:15														NOT RIGHT NOW.	NO	N/A	N/A	N/A	N/A	N/A	N/A	NO	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	894918	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		06-JUN-24	06-JUN-24	Monthly Category 3 Spill	5100 Griffith Park Drive	05/17/2024 11:30	05/17/2024 12:21	05/17/2024 11:30				The initial crew arrived at 12:21 P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.142829	-118.288451	Manhole	None	None	359	Picture of SSO.	N	None	0				0	Other (specify below)	The entire back up amount soaked into the ground.	34.142829  -118.288451	Y	34.142829	-118.288451							05/17/2024 12:21	The SSO volume was estimated utilizing a standardized template which calculates the volume by using dimensional analysis.  	VOLUME OF A SPILL CONTAINED IN A RECTANGULAR AREA LENGTH 72 FEET WIDTH 8 FEET DEPTH 1 INCH 359 GALLONS	Root Intrusion		Gravity Mainline		Vitrified Clay		93	It was estimated that approximately 359 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow		The crew removed the blockage, and the backup ceased at 12:21 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.	Inspected Sewer Using CCTV to Determine Cause		A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 12:21 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.		05/17/2024 12:21	On Friday, May 17, 2024 at 11:30 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 5100 Griffith Park Drive (TG 564-A4). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 12:21 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 359 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground. 		None At This Time.	05/17/2024 12:21														None at this time	As part of our quality assurance program, this sewer was inspected using Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	As part of our quality assurance program, this sewer was inspected using Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	None at this time.	As part of our quality assurance program, this sewer was inspected using Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	None at this time.	As part of our quality assurance program, this sewer was inspected using Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	On Friday, May 17, 2024 at 11:30 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 5100 Griffith Park Drive (TG 564-A4). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 12:21 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 359 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground. 	None At This Time.	
4	4SSO10429	Active	Santa Clarita City CS	City of Santa Clarita 	894922	1.2	Certified	Eric Liu	Civil Engineer	20-MAY-24	29-MAY-24	29-MAY-24	Category 1 Spill	1375-0001 (18934 Soledad Canyon Road, Santa Clarita)	05/15/2024 15:08	05/15/2024 16:01	05/15/2024 14:55		-		CSMD Map Sheet No. 1375 Manhole No. 1 MMS No. 8784701 Manhole No. 1 was overflowing.	34.41566	-118.46599	Manhole	Manhole No. 1		400	Sewage was flowing from Manhole No. 1 onto the street. A portion of the sewage spill entered a storm drain located on Crossglade Avenue behind 18932 1/2 Soledad Canyon Road. 	Y	A portion of the sewage spill entered a storm drain located on Crossglade Avenue behind 18932 1/2 Soledad Canyon Road, which leads to private drain and Sand Canyon - Santa Clara River. 	95	305	A portion of the sewage spill entered a storm drain located on Crossglade Avenue behind 18932 1/2 Soledad Canyon Road, which leads to private drain and Sand Canyon - Santa Clara River. 	305	95	Drainage Conveyance System that discharges to surface water		A portion of the sewage spill entered a storm drain located on Crossglade Avenue behind 18932 1/2 Soledad Canyon Road, which leads to private drain and Sand Canyon - Santa Clara River. 	Y	34.41566	-118.46554							05/15/2024 16:15	CWEA SSCSC Manhole Gauge.	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops. 	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		48	No impact.	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow		Upon arrival, we found manhole No. 1 overflowing.  We broke down a heavy grease stoppage between manholes 1 to 2 using a penetrator nozzle and Warthog.  Afterward, the area was thoroughly cleaned.  All required agencies were promptly notified.	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Other (specify below)	Will inspect the mainline via CCTV to determine if further action is needed.	Will inspect the mainline via CCTV to determine if further action is needed.	N/A	05/15/2024 17:40	Will inspect the mainline via CCTV to determine if further action is needed.	Y	Grease accumulation report was forwarded to Environmental Program Divisions Supervisor Waste Control Engineering Inspector for further investigation. 	07/22/2024 10:40	Santa Clara River	River		Santa Clara River	No impacts.	Other (specify below)	N/A	N/A	0	N	N											Grease accumulation report was forwarded to Environmental Program Divisions Supervisor Waste Control Engineering Inspector for further investigation. 	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	894926	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		28-MAY-24	28-MAY-24	Category 1 Spill	16421 West Pacific Coast Highway	05/19/2024 18:00	05/19/2024 19:00	05/19/2024 18:00	05/19/2024 19:19	24-2873		The initial crew arrived at 7:00 P.M. and discovered an 12-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. The entire back up amount entered an adjacent City of Los Angeles owned catch basin at 16421 West Pacific Coast Highway, which is tributary to Pacific Ocean.  	34.042365	-118.53993	Manhole		None	259	The entire back up amount entered an adjacent City of Los Angeles owned catch basin at 16421 West Pacific Coast Highway, which is tributary to Pacific Ocean.	Y	The entire back up amount entered an adjacent City of Los Angeles owned catch basin at 16421 West Pacific Coast Highway, which is tributary to Pacific Ocean.	0	0	The entire back up amount entered an adjacent City of Los Angeles owned catch basin at 16421 West Pacific Coast Highway, which is tributary to Pacific Ocean.	259	0	Other (specify below); Paved Surface	The entire back up amount entered an adjacent City of Los Angeles owned catch basin at 16421 West Pacific Coast Highway to Pacific Ocean.	34.042365   -118.539930	Y	34.042365	-118.53993							05/19/2024 19:30	Spill flowrate and volume determination based on flowout pickhole or opening Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening0.5inches Flowrate per pickole/opening (gpm)1gpm # of pickholes/openings2 Total flowrate (gpm)3gpm Duration of spill (minutes)90minutes Total flow (gallons)259gallons 	Spill flowrate and volume determination based on flowout pickhole or opening 	Root Intrusion		Gravity Mainline	Gravity Sewer.	Other (specify below)	HDPE	17	On Sunday, May 19, 2024, at 6:00 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 16421 West Pacific Coast Highway (TG 593-G3). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 7:30 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.    Approximately 242 gallons of sewage backed out of the sewer as a result of the blockage.  The entire back up amount entered an adjacent City of Los Angeles owned catch basin at 16421 West Pacific Coast Highway to Pacific Ocean. 	N	Restored Flow		On Sunday, May 19, 2024, at 6:00 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 16421 West Pacific Coast Highway (TG 593-G3). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 7:30 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.    Approximately 242 gallons of sewage backed out of the sewer as a result of the blockage.  The entire back up amount entered an adjacent City of Los Angeles owned catch basin at 16421 West Pacific Coast Highway to Pacific Ocean. 	Adjusted Schedule/Method of Preventive Maintenance	On Sunday, May 19, 2024, at 6:00 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 16421 West Pacific Coast Highway (TG 593-G3). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 7:30 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.    Approximately 242 gallons of sewage backed out of the sewer as a result of the blockage.  The entire back up amount entered an adjacent City of Los Angeles owned catch basin at 16421 West Pacific Coast Highway to Pacific Ocean. 	The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	05/19/2024 19:30	On Sunday, May 19, 2024, at 6:00 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 16421 West Pacific Coast Highway (TG 593-G3). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 7:30 PM. The cause of the blockage was attributed to root intrusion.	N		05/19/2024 19:30	Pacific Ocean	Other (specify below)	Pacific Ocean.	Pacific Ocean. 	None At This Time.	Other (specify below)	None At This Time.	Beaches and Harbor	0	Y	Y	16421 West Pacific Coast Highway.	16421 West Pacific Coast Highway 										
5F	5SSO11288	Active	Fresno Co 38-Sky Harbour CS	County of Fresno	894941	1.2	Certified	Eva Frias	Program Technician		28-MAY-24	28-MAY-24	Monthly Category 3 Spill	Sky Harbour Rd and Aqua Vista Rd, Friant CA	05/06/2024 16:45	05/06/2024 16:45	05/06/2024 16:30				Due to root intrusion, sewage began to leak from the manhole. Mr. Rooter attempted to relieve the blockage and caused 600 gallons of sewage to spill out.	36.97866	-119.66375	Gravity Mainline; Manhole			600	See #6 and attached photos with descriptions.	N						50	Paved Surface; Street/Curb and Gutter (2 3)		See #6 and attached photos with descriptions.	Y	36.97855	-119.66378							05/06/2024 16:57	The Chief Plant Operator was present when Mr. Rooter tried to alleviate the sewage blockage.  Based on his many years of experience he estimated the volume of the spill to be approximately 600 gallons and approximately 50 gallons of sewage accumulated at the puddle where the spill stopped.	The Chief Plant Operator was present at the time of the spill and when it was contained.	Root Intrusion		Gravity Mainline		Vitrified Clay		60	No impact.	N	Cleaned Up (specify below); Property Owner Notified; Returned Portion of Spill to Sanitary Sewer System		The field staff used a 50 gallon bucket to carry the sewage that accumulated on the road (puddle) and put it back into the manhole.	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Vendor is going to try to jet out the roots from the pipe	Staff will include routine monitoring of the manholes throughout the District as part of their routine maintenance.		05/06/2024 16:57	Mr. Rooter who has serviced WWD 38 for several years knows that root intrusion into the sewer pipes has occurred over the years.  Mr. Rooter suspects that the blockage is what caused the sewage to slowly leak from the manhole.  Currently the plumbing contractor is trying to locate the pipe with the root intrusion so Mr. Rooter can hydro jet the roots out.  This is what is suspected but has not yet been confirmed.		N/A	05/24/2024 15:30														No enforcement action taken.	N/A Difficult to prevent root intrusion.	Staff will include routine monitoring of the manholes throughout the District as part of their routine maintenance.	Not at time.	In progress. Plus One Plumbing is currently digging to locate the pipe with the root intrusion. Once it is located a 4  cleanout and stub up will be installed so Mr. Rooter can jet out the roots. 	N/A	N/A	Resident driveway and roadways were disinfected with chlorine.	N/A	
5S	5SSO10890	Active	City Of Antioch CS	Antioch City	894942	1.3	Certified	Toby A Beach	Collection System Superintendent		26-AUG-24	26-AUG-24	Monthly Category 3 Spill	909 Almond st	04/27/2024 10:34	04/27/2024 10:55	04/27/2024 10:00				See attachments	38.01192	-121.80503	Manhole	n/a	none	145	see attachment	Y	See atachments	49				145	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)	n/a	A Sewer main line was plugged and spilled from a manhole going down the street, curb and gutter into a catch basin. Sandbags in the storm catch basin stopped the sewer from getting any further.										04/27/2024 11:11	area volume calculations from lead worker Tyrone Wilson. A sketch is attached 	Using a calculation spread sheet to complete	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		64	Minimal impact from spill due to everything was captured and cleaned up. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Upon arrival crews threw sandbags in the storm catch basin to prevent sewer flowing to waterways. opened up stoppage and began clean-up. Cleaned and vacuumed storm catch basin and 2 downstream line segments.	Inspected Sewer Using CCTV to Determine Cause		CCTV line. Did not see any issues with line segments		04/27/2024 11:00	Cause of the stoppage was grease.  		None	04/27/2024 11:00														none taken due to the spill being a category 3.	Handed out FOG flyers to homes in immediate area.	N/A	None need it	N/A	None	N/A	Crews arrived and opened up the stoppage of the main line, cleaned the spill and then we cctv'd the main line to identify the failure. Removed grease in line with jetter	None	
5S	5SSO10951	Active	Galt CS	Galt City	894944	1.3	Certified	John Griffin	Director of Public Works	20-MAY-24	30-JAN-25	30-JAN-25	Category 2 Spill	Simmerhorn/Steiner 	05/20/2024 13:00	05/20/2024 13:00	05/14/2024 12:00	05/20/2024 15:52	24-2889		Found possible 6  sewer main cut into, believe someone tried to cut in a sewer lateral, which led to spill. Raw sewage bubbled up and into adjacent irrigation ditch, unsure how many gallons are sewage vs water. Estimated gallons in this report captures all water in complete ditch at this time. AFTER EXCAVATION WE FOUND THE ABOVE NOT TO BE TRUE. We found a coupling from the HDPE pipe to SDR in which hathe HDPE pipe had separated from the coupling back approximately eight inches. The reason we know the pipe was not cut away is that the clamp on the coupling was still tightened down, and the edge of the pipe was a clean edge. This force main is part of a development project and has still not been accepted by the City of Galt. The City has taken the lead and collected all liquid (sewer and storm) from the ditch to the Waste Water Treatment Plan, however the Developer is being held responsible for our labor costs and all soil clean up as according to state regulations. 	38.26198	-121.29176	Force Main			1200	Force main failure point is near Simmerhorn Road approx 10' south from North end of irrigation ditch. From this point the sewage entered the old irrigation ditch. Unsure how much is sewage vs old storm water until lab results are completed. However we are estimating worst case scenario and treating all as sewage to ensure complete confidence in clean up. The irrigation ditch dimensions are 596' in length, 10' average width, 2' average in depth. Total possible gallons in ditch area is 89,161. This ditch also has an odd shaped triangle on the South end that has an estimated 2 inches in depth, with islands throughout.  The triangle dimensions are 100', by 200', by 162'. The estimated amount of gallons in this area is 10,057.6 for estimate. This combined area comes to grand total estimate of 94,189.80 gallons complete spillage for worst case scenario. On 5/29/2024 submitted spreadsheet with 100% recovery of all sewage and contaminated water from irrigation ditch, totaling 114,548 gallons.	N						0	Other (specify below)	Force main failure point is near Simmerhorn Road approx 10' south from North end of irrigation ditch. From this point the sewage entered the old irrigation ditch. 	Found possible 6  sewer main cut into, believe someone tried to cut in a sewer lateral, which led to spill. Raw sewage bubbled up and into adjacent irrigation ditch, unsure how many gallons are sewage vs water. Estimated gallons in this report captures all water in complete ditch at this time. AFTER EXCAVATION WE FOUND THE ABOVE NOT TO BE TRUE. We found a coupling from the HDPE pipe to SDR in which hathe HDPE pipe had separated from the coupling back approximately eight inches. The reason we know the pipe was not cut away is that the clamp on the coupling was still tightened down, and the edge of the pipe was a clean edge. This force main is part of a development project and has still not been accepted by the City of Galt. The City has taken the lead and collected all liquid (sewer and storm) from the ditch to the Waste Water Treatment Plan, however the Developer is being held responsible for our labor costs and all soil clean up as according to state regulations. 	Y	38.26198	-121.29176							05/20/2024 13:00	Found possible 6  sewer main cut into, believe someone tried to cut in a sewer lateral, which led to spill. Raw sewage bubbled up and into adjacent irrigation ditch, unsure how many gallons are sewage vs water. Estimated gallons in this report captures all water in complete ditch at this time. AFTER EXCAVATION WE FOUND THE ABOVE NOT TO BE TRUE. We found a coupling from the HDPE pipe to SDR in which hathe HDPE pipe had separated from the coupling back approximately eight inches. The reason we know the pipe was not cut away is that the clamp on the coupling was still tightened down, and the edge of the pipe was a clean edge. This force main is part of a development project and has still not been accepted by the City of Galt. The City has taken the lead and collected all liquid (sewer and storm) from the ditch to the Waste Water Treatment Plan, however the Developer is being held responsible for our labor costs and all soil clean up as according to state regulations. 	time received notification of potential spill, arrival of field crews, and temporary shutdown of sewer pump station until repairs were completed.	Pipe Structural Problem/Failure - Installation		Force Main		Other (specify below)	We found a coupling from the HDPE pipe to SDR in which hathe HDPE pipe had separated from the coupling back approximately eight inches. 	2	The City has taken the lead and collected all liquid (sewer and storm) from the ditch to the Waste Water Treatment Plan, however the Developer is being held responsible for our labor costs and all soil clean up as according to state regulations.	N	Cleaned Up (specify below)		The City has taken the lead and collected all liquid (sewer and storm) from the ditch to the Waste Water Treatment Plan, however the Developer is being held responsible for our labor costs and all soil clean up as according to state regulations.	Repaired Facilities or Replaced Defect		The City has taken the lead and collected all liquid (sewer and storm) from the ditch to the Waste Water Treatment Plan, however the Developer is being held responsible for our labor costs and all soil clean up as according to state regulations.	N/A	08/29/2024 17:00	Soil removal was completed on August 29.	N												N													
5S	5SSO10901	Active	City of Sacramento Utilities CS	Sacramento City	894952	1.1	Certified	Kevin Guerra	Superintendent		22-MAY-24	22-MAY-24	Monthly Category 3 Spill	5613 Seward Court Sacramento, Ca. 95819	04/22/2024 12:21	04/22/2024 12:32	04/22/2024 11:48				The spill appeared and came from a manhole located in the court in front of this address.	38.57842	-121.42409	Manhole			158	The spill left the manhole in the court and made it to the gutter pan where it then traveled East to a Drain inlet into the drainage system.	Y	The conveyance system flows to a drainage sump and then to the American River.  The spill  only went three main segments and was not close to the sump station.	158				158	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		The spill entered the drainage system through a nearby drain inlet and was captured at a manhole three main segments downstream of the inlet.	Y	38.57799	-121.42468	38.57774	-121.42741					04/22/2024 12:42	The spill was measured on the ground, the length, width, and height were then put into a volume calculation. We then took measurements of depths in the drainage mains and used the length and circumference of the piping in another volume calculation to get this total. These were added together to get the estimated volume.	We used the caller statement that they saw the spill when returning home from an appointment, to get the start time. And the Responder documented the time they unplugged the sewer main for the spill end time.	Root Intrusion		Gravity Mainline		Vitrified Clay		68	There were no impacts to the public or service.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Upon arrival the responder used a cone to plug the drain inlet to stop the spill from continuing to enter the  drainage system. When we ended the spill, the  area on the surface was washed down and we cleaned and vacuumed the drainage system at the end point . All the spill was returned to the wastewater system.	Inspected Sewer Using CCTV to Determine Cause		We completed the scheduled work order that was late, removing the roots that were the cause.		04/22/2024 14:27	We used our CCTV equipment to inspect the main segment that plugged, and we found that it had roots in several joints. These joints also had grease to build up in those areas.  We researched the main segment in our CMMS system and found this main was on a rodding work order that was late. 		N/A	05/06/2024 10:42														N/A	N/A	We did not adjust the scheduled Maintenance.	N/A	We used our CCTV equipment to find the cause of the spill and removed the roots that were found.	N/A	N/A	N/A	N/A	
5S	5SSO10893	Active	City Of Folsom CS	Folsom City - Environmental & Water Resources Dept	894954	1.2	Certified	Marcus Yasutake	Environmental & Water Resources Director		13-JUN-24	13-JUN-24	Monthly Category 3 Spill	108 Willow Creek Drive	05/19/2024 09:28	05/19/2024 10:02	05/18/2024 20:00				Upper lateral clean out spill due to a mainline backup. 	38.68638	-121.14906	Lateral Clean Out (Private); Upper Lateral (Private)	n/a	n/a	55	The spill area was contained to the resident's property on unpaved landscaping consisting of bark, dirt, and cobblestone rock.	N	n/a					0	Unpaved Surface		The spill stayed on the resident's property onto unpaved bark, dirt, and cobblestone rock.	N									05/19/2024 10:47	Using eyeball estimation method including comparing spill area with a 55-gallon drum.	After questioning the resident, she noticed that she was having sewer issues the night before (05/18/24) between 8:00 p.m. and 11:00 p.m. She mentioned that it was too dark to tell but there appeared to be a small puddle outside of her cleanout. The following morning (05/19/24) the sewer issue seemed to be getting worse and that is when she called Police Dispatch to report the spill.  Based on the witness�s response, it was estimated that the spill began at 8:00 p.m. on 05/18/24. Spill end time was determined through field verification of the sewer system no longer spilling.	Root Intrusion		Gravity Mainline		Vitrified Clay		30	The impact of the spill was contained to the soil, cobblestone, and bark.  The majority of the contaminated landscaping was removed into trash bags and disposed of. The area was disinfected, and new bark and cobblestone were laid. The spill was estimated to have been 55 gallons with 0 gallons recovered. The spill was lost to absorption and evaporation.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow	Vac-truck was positioned at manhole SS-B06C-2-41118  to stop the spill until the blockage could be cleared.	Staff received a call from Folsom P.D. dispatch of a sewer issue. Staff arrived to find the homeowners cleanout spilling.  Staff checked manhole B06C-2-50088 and found it surcharged. The Vac-truck was positioned at manhole B06C-2-41118 and using the main flushing line attempted to clear the unknown blockage. At this time additional staff was called in. Once the arrived, the 2nd Vac-truck was positioned at manhole B06C-2-50088 and suction was used to mitigate the spill until the blockage could be cleared. Once flow was restored it was evident through visual inspection the cause of the spill was roots and grease. The cleanup process began by spraying the spill area with disinfectant and removing the bark and soil with shovels into large trash bags. Staff returned Monday 5/20/2024 and removed the cobblestone and replaced both the bark and cobblestone with new materials. 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	The section of mainline was flushed on 5/22/2024	The frequency of mainline flushing for this area will be increased. This will be added to the preventive maintenance template.		05/19/2024 15:55	Roots and grease from manhole B06C-2-41118 were removed using manhole hooks and spoons.		CCTV was done on 5/20/2024 and found no further issues. The investigation into the cause of the spill was completed on 5/19/2024 and stated above to be roots and grease.	05/19/2024 13:55														n/a	As stated above, this section of mainline will be flushed on a more regular basis.	Yes, stated above.	No	CCTV inspection was conducted and found no further issues. No video available.	n/a	This will be added to the SSMP preventive maintenance template.	n/a	CCTV was done on 5/20/2024 and found no further issues. The investigation into the cause of the spill was completed on 5/19/2024 and stated above to be roots and grease.	
4	4SSO10388	Active	Glendale City CS	Glendale City	894956	1.5	Certified	Gary Harris	Wastewater Maintenance Superintendent	21-MAY-24	30-MAY-24	30-MAY-24	Category 1 Spill	1514 E. Garfield Ave. Glendale CA, 91205	05/17/2024 08:47	05/17/2024 08:55	05/16/2024 16:00	05/17/2024 10:03	24-2830		Sanitary Mainline located at the 1500 blk. E. Garfield Ave. 	34.13709	-118.23091	Manhole			1024	Manhole #030487 spilled onto the southside gutter of the 1500 blk. of E. Garfield Ave. leading to catch basin nearest Verdugo Rd.	Y	Spill entered Catch Basin ID 1800052 owned by LACFCD located at the south-side corner of E. Garfield Ave. / Verdugo Rd. 	0	1020	Spill entered Catch Basin ID 1800052 and discharged into the LA River via Sycamore Canyon Channel Lower.	1020	4	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		Manhole #030487 spilled onto the southside gutter of the 1500 blk. of E. Garfield Ave. leading to catch basin nearest Verdugo Rd. Spill entered Catch Basin ID 1800052 owned by LACFCD located at the south-side corner of E. Garfield Ave. / Verdugo Rd. and discharged into the LA River via Sycamore Canyon Channel Lower.	Y	34.13709	-118.23091							05/17/2024 09:04	Spill volume calculated using SSCSC (Southern Section Collection Systems Committee) Manhole Overflow Gauge. Assumptions: appeared to be less than 5 GPM which is the lowest GPM on SSCSC gauge, partial stoppage not full blockage meaning underflow, footage noted on Hydro Flusher Acu-Counter (digital footage counter) compared to GIS Sewer Atlas data indicates only two (2) lateral connections above obstruction (roots), Spill duration 1,024 minutes of which four hundred (420) during low flow hours. Calculated Spill volume at 1 GPM X 1,024 minutes= 1,024 gallons.   	Estimated spill start time (16:00 5/16) based on observation reported from local resident to Public Works Wastewater Maintenance Crew. Spill end time (9:04 5/17) based on spill weep end at upstream manhole and surge observed at downstream manhole by Public Works Wastewater Maintenance Crew.	Root Intrusion		Gravity Mainline		Vitrified Clay		97	Minor wetted area on street, curb and gutter.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Crew on scene within eight (8) minutes of report to main office call center. Vacuum recovery by means of Combination Unit eliminating spill from entering catch basin in place thirteen (13) minutes from call. Stoppage cleared seventeen (17) minutes after receiving call. Used bleach to sanitize affectted areas (street, curb and gutter) and washed down using hydro flusher. All clean-up water recovered using Combination Unit and returned to the Sanitary Sewer System. 	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Plan Rehabilitation or Replacement of Sewer	CRC (Chemical Root Control)	Adjust frequency of cleaning, apply CRC (Chemical Root Control) to mitigate root growth, CCTV report to Engineering for evaluation.	1. Adjust frequency of cleaning (immediately). 2. CRC (next treatment cycle fall 2024). 3. CCTV report to Engineering for evaluation (in cloud database). 	05/17/2024 11:45	CCTV inspection reported root intrusion from joints and private laterals. In addition to minor defects (cracks). 	N			L.A. River	River		Concrete channel once a natural river, discharging watershed into the Pacific Ocean via San Pedro Bay located in Long Beach CA.	None	Other (specify below); Restricted Public Access	Public access to L.A. River channel is permanently restricted per County of L.A. Flood Control	Los Angeles County, Flood Control	0	N	N												
3	3SSO10334	Active	Seaside Co Sd CS	Seaside CSD	894957	1.3	Certified	Nisha Patel	District Engineer	22-MAY-24	22-MAY-24	22-MAY-24	Category 2 Spill	1575 Mira Mar	05/19/2024 16:28	05/19/2024 17:19	05/19/2024 13:45		-		The spill originated from a manhole at 36.62.0261, -121.830417, and spread over a grass and dirt field to 36.620403, -121.830419.	36.620261	-121.830417	Manhole			2140	attached	N						0	Unpaved Surface		grass and dirt field.	Y	36.620403	-121.830419							05/19/2024 17:19	Operators estimated 10 gpm based on guide sheet. Spill was active for 214 minutes. 214 * 10 = 2140	Field crew informed that spill started around 1345 pm. Crew documented the stop time.	Debris-General; Root Intrusion		Gravity Mainline		Vitrified Clay		70	Unpaved surface contaminated with sewage. Cleaned and disinfected	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow		Restored flow, cleaned up and disinfected area.	Inspected Sewer Using CCTV to Determine Cause		Cleared blockage, CCTV line. No damage to line	None	05/19/2024 18:30	Visqueen plastic sheeting was removed from the main line. A root ball was also removed. The line was CCTV, and found to be flowing clear and in good condition	N												N													
4	4SSO11423	Active	Long Beach Water Dept. CS (SSO program)	Long Beach City, Water Dept	894960	1.2	Certified	Tai Tseng	Asst General Manager	22-MAY-24	03-JUN-24	03-JUN-24	Category 1 Spill	5400 E. 2nd St. Long Beach CA.	05/20/2024 11:24	05/20/2024 11:56	05/18/2024 19:00	05/20/2024 16:04	24-2888		The spill began from a corroded muffler, which is attached to an air relief valve on a force main. This muffler serves the purpose of silencing the sound when the air relief valve is in operation.	33.75822	-118.1302	Force Main		The spill was localized to a single appearance point, which was the air release valve on the force main.	1	Point of Appearance: A minor sewage spill occurred due to a corroded muffler on the air relief valve for the force main located under the 2nd Street bridge. Approximately 1 gallon of sewage reached Bay Shore Bay.	N	N/A	0	0	When the force main pump cycles, drops of wastewater from the corroded muffler would drip into the waters below.	1	0	Surface Water		The spill dripped from the muffler on the air relief port, which is installed on the force main under the bridge, and subsequently dripped into the ocean. Less than 1 gallon spilled.	Y	33.75822	-118.1302							05/20/2024 14:35	The spill volume was estimated based on visual observations. The operator noted minimal leakage from the air relief valve on the force main, no more than an ounce per pump cycle. Since the pumps had cycled approximately 100 times since the leak was reported, the total volume is around 0.78 gallons. Since the CIWQS system does not support decimal values, we will report the spill volume as 1 gallon.	The on-site operator spoke with a resident named Ron Schwandt. Schwandt reported that a boat hit the bridge on Saturday, 5/18/2024, at 7:00 PM, after which he noticed a small drip. However, no damage to the force main caused by the boat was found during the operator's investigation. Our sewer operations team contacted Richard Salas, a treatment plant operator, to review the SCADA data and determine how often the pump had cycled within that timeframe. This information was used to calculate the total spill volume. Spill only occurred during a pump cycle on the force main.	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure		Force Main		Ductile Iron		17	Due to the spill being less than 1 gallon, the impact was very minimal. 	N	Other (specify below)	The spill had a minimal but still notable impact, given that the amount of sewage leaked was about 1 gallon. Once spill location was verified and faulty part determined the replacement part was installed immediately.	Upon discovering the spill, immediate response activities were initiated. Due to the location of the spill, directly under a bridge and dripping into the bay, traditional containment methods were not feasible. Instead, the response was to replace the defective part immediately, effectively stopping the leak and preventing further sewage spillage into the bay.	Repaired Facilities or Replaced Defect		Upon arriving on-site, our team began corrective actions to stop the leakage and prevent future occurrences. Our approach consisted of the following steps: 1. Immediate Spill Stoppage: We replaced the corroded part under the bridge, effectively halting the leakage and preventing further sewage spillage into the water. 2. Investigation and Assessment: We conducted a thorough examination of the part and the surrounding system components to identify any additional areas of concern. 3. Devising Long-term Solutions: We will work with engineering to design a more robust system for the defective part on the air relief valve to withstand the harsh environmental conditions under the bridge, considering factors like moisture, saltwater, and potential physical impacts. 4. Regular Inspections and Maintenance: We will increase the frequency of inspections for this specific location and implement preventative maintenance procedures, as well as maintenance on the ARV.	1. Immediate Spill Stoppage: Completed on 5/20/2024. 2. Investigation and Assessment: Completed on 5/22/2024. 3. Devising Long-term Solutions: Scheduled to start in June 2024. 4. Regular Inspections and Maintenance: Start from 6/19/2024, with bi-monthly inspections.	05/20/2024 14:35	The investigation revealed that the air relief valve (ARV) attached to the force main had a minor leak and dripped into the water due to corrosion. This led to a small sewage spill, which potentially impacted the water quality at Bayshore Beach. Additionally, the frequency of inspections and maintenance has been increased.	N	While there is no ongoing investigation, system modifications are being explored to prevent a similar event in the future. 		Bayshore Beach	Ocean		Bayshore Beach is located on the south western shore of Alamitos Bay, near the Belmont Shore, Naples, and Peninsula neighborhoods of Long Beach. Bay Shore is separated from the open ocean by the Alamitos Peninsula, ensuring calm, tranquil waters year-round, ideal for swimming and all types of water-based recreation. Bay Shore is a popular summer destination spot for families and people looking to stay active while enjoying the Southern California sun, as it offers a wide range of activities and recreational amenities for all ages.	No immediate impacts on aquatic life were observed following the minor sewage spill.	Other (specify below)	No public access impacted.	Long Beach Environmental Health Department.	0	N	N											While there is no ongoing investigation, system modifications are being explored to prevent a similar event in the future. 	
4	4SSO10373	Active	Burbank City, Public Works CS	Burbank City DPW	894962	1.3	Certified	Stephen Walker	Assistant Public Works Director	22-MAY-24	31-MAY-24	31-MAY-24	Category 1 Spill	Burbank (N. Kenneth Rd./ E. Olive Ave.)	05/18/2024 09:15	05/18/2024 09:50	05/18/2024 09:11	05/20/2024 11:00	24-2877		The sewer overflow occurred from City sewer manhole 05-028, which is located approximately at the GPS coordinates 34�11'17.3 N 118�18'07.2 W. 	34.18815	-118.302	Manhole	N/A	N/A	1100	The sewer overflow occurred from City sewer manhole 05-028, which is located approximately at the GPS coordinates 34�11'17.3 N 118�18'07.2 W. The sewage was found to be overflowing out of the pick-hole at a rate of approximately 25 gallons per minute using the California Water Environment Association (CWEA) and Southern Section Collection Systems Committee's (SSCSC) Manhole Overflow Gauge. The sewage proceeded to flow down the alley approximately 630 feet to the nearest catch basin located by the intersection of N. 7th St. and E. Olive Ave at the approximate GPS coordinates of 34�11'12.6 N 118�18'09.8 W. This catch basin enters a storm drain system tributary of approximately 4,500 feet before draining into the Burbank Western Channel. Upon further investigation, the resident who reported the SSO stated that they first noticed the spill at 9:11 AM and then proceeded to contact the BWP Guard Shack at 9:15 AM.  Please see attachment for the CWEA/SSCSC Manhole Overflow Gauge measurement.	Y	The nearest catch basin is located by the intersection of N. 7th St. and E. Olive Ave. at the approximate GPS coordinates of 34�11'12.6 N 118�18'09.8 W. This catch basin enters a storm drain system tributary of approximately 4,500 feet before draining into the Burbank Western Channel. 	0	1100	The sewer overflow occurred from City sewer manhole 05-028, and proceeded to flow down the alley approximately 630 feet to the nearest catch basin located by the intersection of N. 7th St. and E. Olive Ave at the approximate GPS coordinates of 34�11'12.6 N 118�18'09.8 W. This catch basin enters a storm drain system tributary of approximately 4,500 feet before draining into the Burbank Western Channel.	1100	0	Drainage Conveyance System that discharges to surface water		The sewer overflow occurred from City sewer manhole 05-028, which is located approximately at the GPS coordinates 34�11'17.3 N 118�18'07.2 W.	Y	34.18813	-118.30214							05/18/2024 09:55	The sewage was found to be overflowing out of the pick-hole at a rate of approximately 25 gallons per minute using the California Water Environment Association (CWEA) and Southern Section Collection Systems Committee's (SSCSC) Manhole Overflow Gauge.  The total overflow was calculated using the flow rate of 25 gallons per minute multiplied by the duration of the overflow. Please note that the initial estimate was based upon the time that the BWP Guard Shack was contacted, however, upon further investigation the resident who reported the overflow stated that the overflow began at 9:11 AM whereupon the resident proceeded to contact the BWP Guard Shack at 9:15 AM. The City Sewer Crew arrived onsite at 9:50 AM and cleared the obstruction in the City sewer main at 9:55 AM, thus the total SSO quantity = (25 gpm) X (44 minutes) = 1,100 gallons.   Please see attachment for the CWEA/SSCSC Manhole Overflow Gauge measurement and the SSO Quantity Calculation for additional details.	The sewage was found to be overflowing out of the pick-hole at a rate of approximately 25 gallons per minute using the California Water Environment Association (CWEA) and Southern Section Collection Systems Committee's (SSCSC) Manhole Overflow Gauge. The resident who reported the overflow stated that he noticed the overflow at 9:11 AM and then proceeded to contact the BWP Guard Shack at 9:15 AM. The City sewer crew arrived onsite at 9:50 AM and cleared the obstruction in the City sewer main at 9:55 AM.  Please see attachment for the CWEA/SSCSC Manhole Overflow Gauge measurement and the SSO Quantity Calculation for additional details.	Debris-Rags; Root Intrusion		Manhole		Vitrified Clay		81	The sewage proceeded to flow down the alley from manhole 05-028, approximately 630 feet to the nearest catch basin located by the intersection of N. 7th St. and E. Olive Ave at the approximate GPS coordinates of 34�11'12.6 N 118�18'09.8 W. This catch basin enters a storm drain system tributary of approximately 4,500 feet before draining into the Burbank Western Channel. 	N	Cleaned Up (specify below); Restored Flow	The area that the sewage came in contact with (located along the alley up to the catch basin,) was chlorinated and cleaned, and the cleanup water was returned to the sanitary sewer system. 	The Sewer Crew was contacted by the BWP Guard Shack at 9:15 AM, and they arrived onsite at 9:50 AM and proceeded to clear the obstruction in the City sewer main at 9:55 AM. The Sewer Crew noted that the cause of the obstruction was the presence of root intrusion and rags in the City sewer main. The wetted area of contact with the SSO, located along the alley and to the catch basin was chlorinated and cleaned, and the cleanup water was returned to the sanitary sewer system. None of the SSO was able to be recovered and returned back into the sewer system. 	Adjusted Schedule/Method of Preventive Maintenance		This portion of City sewer main is currently cleaned/maintained by Sewer Crew approximately once per year. The schedule has been adjusted to now clean this sewer reach twice per year. 	This portion of City sewer main is currently cleaned/maintained by Sewer Crew approximately once per year. The schedule has been adjusted to now clean this sewer reach twice per year. 	05/20/2024 11:00	The initial overflow time estimate was based upon the time that the BWP Guard Shack was contacted, however, upon further investigation the resident who reported the overflow stated that the overflow began at 9:11 AM, whereupon the resident proceeded to contact the BWP Guard Shack at 9:15 AM. The City Sewer Crew arrived onsite at 9:50 AM and cleared the obstruction in the City sewer main at 9:55 AM. The sewer crew noted that the cause of the obstruction was the presence of root intrusion and rags in the City sewer main. 	N	N/A		Burbank Western Channel	Other (specify below)	This drains into the Burbank Western Channel, which eventually drains into the L.A. River.	This drains into the Burbank Western Channel, which eventually drains into the L.A. River. 	N/A	Other (specify below)	N/A	N/A	0	Y	N	N/A	N/A									N/A	
3	3SSO11524	Active	Monterey City CS	Monterey City	894963	1.4	Certified	Andrew Easterling	City Engineer		23-JUN-24	23-JUN-24	Monthly Category 3 Spill	798 Irving Ave.	05/16/2024 09:24	05/15/2024 10:00	05/15/2024 10:00				Wastewater leaking up through pavement near address of 798 Irving Street (intersection of Pine and Irving), flowed 275' to catchbasin where the spill was contained and collected.	36.61306	-121.90844	Other (specify below)	Slow leak coming up through asphalt in street where the 6  VCP sewerline had collapsed.		100	Appearance point was a slow seepage through the asphalt in the intersection of Irving and Pine St.  Wastewater flowed down Irving St. 275' to a catchbasin at Irving and Archer St. where the spill was contained and collected.	N						100	Drainage Conveyance System; Street/Curb and Gutter (2 3)		Spill originated in the intersection of Irving and Pine St (coords 11d-11e) and  was contained in a catchbasin at the SE intersection of Irving and Archer (coords 11f-11g).  The catchbasin flows to a bubble up  to the NW intersection where it outlets to curb and gutter on Archer Street.  There was no sign that the spill made it to the outlet.	Y	36.61311	-121.9085	36.61349	-121.90774					05/16/2024 13:00	visual estimate based on wet area 275' along curb and gutter leading to the catchbasin where the spill was contained.	Slow intermittent leak that was originally identified as a Cal Am water leak reported at 10:00am on 5/15/24.  	Damage by Others Not Related to Collection System Construction/Maintenance; Other (specify below)	Shallow pipe (~18  of cover) appears to have been damaged during compaction on a pavement patch repair.	Gravity Mainline		Vitrified Clay		100	Minimal impact.  Affected area was flushed with fresh water and vacuumed at the catchbasin.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Returned All Spill to Sanitary Sewer System		Fire Department responded to a call out to a sewer spill on 5/15/24 at 20:22:36 (incident report attached).  Public Works was notified and water was tested for ammonia and tested clear.  Cal Am was notified of this being a water leak.  Upon investigation, Cal Am notified Public Works that the leak was not Cal Am.  A second ammonia test was taken on 5/16/24 upon arrival at 10am and tested positive.  Pub. Wks. hydrojet the line and identified a blockage in the line.  CCTV inspection camera identified that the line was collapsed.  Hydrojet relieved the blockage and restored flow. The affected curb, gutter, and catchbasin were flushed and vacuumed. City on-call contractor Don Chapin responded on 5/17/24 at 7am to make emergency repairs.  a 10' section of pipe was replaced.	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		The damaged section of pipe was replaced on 5/17/24.		05/17/2024 16:30	Initially Fire Department and Public Works identified the leak as a potable water main and reported to Cal Am for investigation.  Cal Am reported back to Public Works that the spill was not coming from their potable water main.  City crews hydrojet the line to clear the blockage and restore flow.  CCTV inspection revealed that the VCP pipe had collapsed.  A street resurfacing crew had recently done a pavement repair above the collapsed section of pipe, and it was determined that compacting the base rock over the shallow (18  deep) sewer main had compromised the main.		N/A	05/17/2024 16:30														N/A	Added section of pipe to 2024 sewer root foaming.	Added to 2024 sewer root foaming.	Emergency repairs completed on 5/17/2024.	Inspected and repaired sewer line as needed.  	N/A	Work Order Ag10279-73 attached in documents	Replaced 10' section of pipe and slurry backfilled.  Added to 2024 sewer root foaming.	N/A	
8	8SSO10545	Active	Brea City CS	Brea City	894965	1.2	Certified	Matthew Matlock	Water, Sewer & Stormdrain Supervisor	22-MAY-24	23-MAY-24	23-MAY-24	Category 1 Spill	St College Blvd/ Craig Park	05/18/2024 12:00	05/18/2024 12:15	05/18/2024 12:00	05/18/2024 14:54	24-2859		Photos attached show SSO, containment (bmps), cause of SSO and equipment utilized during the recovery of the waste.	33.9129	-117.88644	Gravity Mainline	Sag found in line that contributed to the SSO and will be hiring a contractor to address the sag in line to prevent further SSOs.		9000	SSO discharged from manhole lid on State College Blvd and entered catch basin south of manhole lid.  Approx. 6000 gallons released into Craig Park.   	Y	It reached a double box culvert that comingled with non-storm water runoff that leads to Craig Park. 	3000	6000	Creek in Craig Park, located downstream of spill.	6000	3000	Surface Water		SSO occurred due to rags and offset in sewer line.  The SSO discharged from manhole lid and then flowed towards a catch basin south of the manhole lid.  The catch basin ties into a concrete double box culvert, which is located underneath State College Blvd, then goes into Craig Park (County Park).  The waste from the SSO comingled with non storm flows that flow year round. 	Y	33.9129	-117.88644							05/18/2024 14:00	Used the overflow ruler from Southern Sections Collection Systems Committee to make the 100 gallons per minute determination, which resulted in a total of 12,000 gallons spilled.  We were able to recover 6,000 gallons during the recovery effort. 	Estimated the spill from the time the SSO was reported (12PM) to the time it was cleared (2PM), to get a total of 12,000 gallons released from manhole lid.  Sand bags (bmps) were installed by 12:30PM, which lowered the flow going into the park.  A total of 6 loads (1,000 gallons per load) were decanted back into the system during spill and cleanup efforts.	Debris-Rags; Other (specify below)	After clearing the blockage, the crews discovered there is an offset in the sewer line.	Gravity Mainline		Vitrified Clay		5	Approximately 6000 gallons of sewage waste was not recovered that entered the MS4 and then into Craig Park.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified the rangers at the County Park about the spill, since it entered a public recreation area.	Contacted all the applicable agencies pertaining to the SSO.  Deployed bmps (while performing cleanup/clearing blockage) and recovered waste.	Inspected Sewer Using CCTV to Determine Cause	After the blockage was cleared, videoed the line to explore potential issues, beyond the rags that were taken from the sewer line.  Discovered a sage in the sewer line prior to the location of the blockage.	After discovering the sage in the sewer line, the City hired a contractor to correct the issue that contributed to the SSO.  The contractor is estimating they will fix the sage in the line by May 29, 2024.	Hired a contractor to fix the sage in the sewer line and it is estimated to be completed by May 29, 2024.  The City has contracted with the County of Orange to voluntarily take two water samples in the creek (one upstream of the spill occurrence and one downstream of the spill) on May 23, 2024 and have them analyzed for per the WDR order for the following analytics (Total Coliform, Fecal Coliform, Enterococcus, E. Coli, Ammonia) , since the park is used by the public.	05/18/2024 17:00	Videoed the line to explore potential issues of the SSO since during the spill removed rags from the sewer line.  Discovered a sage in the sewer line prior to the location of the blockage.	Y	The City has contracted with the County of Orange to voluntarily take two water samples in the creek (one upstream of the spill occurrence and one downstream of the spill) on May 23, 2024 and have them analyzed for per the WDR order for the following analytics (Total Coliform, Fecal Coliform, Enterococcus, E. Coli, Ammonia) , since the park is used by the public.  An estimation of 5/31/24 was given for all the water sample analysis to be completed.	05/31/2024 10:00	Coyote Creek Watershed	Stream/Creek		Craig regional park is a non body contact lake that is used for recreational fishing (catch and release only) that is contained behind the Fullerton Dam.	Visual inspections were conducted by Kevin Lui & Cathi Schrader (County Park representatives) on May 18, 2024 at approximately 17:00 and they reported no impacts observed.	Other (specify below)	Based on the visual inspections conducted by the County Park representatives, no action was taken.	County of Orange	0	N	N	As noted in 10(c) and 13(a), samples are being collected on May 23, 2024.	WDR order for the following analytics (Total Coliform, Fecal Coliform, Enterococcus, E. Coli, Ammonia									The City has contracted with the County of Orange to voluntarily take two water samples in the creek (one upstream of the spill occurrence and one downstream of the spill) on May 23, 2024 and have them analyzed for per the WDR order for the following analytics (Total Coliform, Fecal Coliform, Enterococcus, E. Coli, Ammonia) , since the park is used by the public.  An estimation of 5/31/24 was given for all the water sample analysis to be completed.	
5S	5SSO10901	Active	City of Sacramento Utilities CS	Sacramento City	894966	1.1	Certified	Kevin Guerra	Superintendent		22-MAY-24	22-MAY-24	Monthly Category 3 Spill	5352 Karbet Way Sacramento, CA. 95822	04/12/2024 08:16	04/12/2024 08:35	04/12/2024 06:45				The spill left the manhole in the court and made it to the gutter pan where it then traveled West to a Drain inlet into the drainage system.	38.52687	-121.51793	Manhole			111	The spill left the manhole in the court and made it to the gutter pan where it then traveled West to a Drain inlet into the drainage system. The spill was trapped in the first drainage main and was captured at the next downstream manhole located to the North.	Y	The drainage system travels several miles to the nearest Sump, where it is then pumped to the Sacramento River.	111				111	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		The spill traveled from the manhole into the  gutter pan, it then entered the drainage system through a drain inlet. The spill was captured in the first main segment of the drainage conveyance system.	Y	38.52723	-121.51792	38.52789	-121.51756					04/12/2024 10:20	The spill was measured on the ground, the length, width, and height were then put into a volume calculation. We then took measurements of depths in the drainage main and used the length and circumference of the piping in another volume calculation to get this total. These were added together to get the estimated volume.	We used the neighbors statement that they saw the spill earlier that morning before we received the call. And the Responder documented the time they unplugged the sewer main for the spill end time.	Root Intrusion		Gravity Mainline		Vitrified Clay		66	There was no impact to service or to the public from this spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		The spill was not active when the responder arrived on site, they took a picture, and then moved downstream to unplug the sewer main. The spill area on the surface was washed down and we cleaned and vacuumed the drainage system. All the spill was returned to the wastewater system.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		We have sent our rodding crew to remove the roots that were determined to be the cause of the spill.		04/12/2024 11:15	We used our CCTV equipment to inspect the main segment that plugged, and we found that it had roots in several joints.   We researched the main segment in our CMMS system and found this main was on a cleaning and rodding work order that were both late. 		N/A	04/17/2024 15:11														N/A	Adjusted Cleaning Schedule	We are changing the cleaning frequency from one year to 3 months to help prevent future spills.	N/A	We used CCTV equipment to determine the cause and check the condition of the main.	N/A	N/A	N/A	N/A	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	894970	1.2	Certified	David Leamer	Assistant Superintendent		29-MAY-24	29-MAY-24	Monthly Category 3 Spill	342294	04/25/2024 11:10	04/25/2024 11:24	04/25/2024 11:05				See Attached Spill map with Photos.	38.66104	-121.32534	Manhole			125	See Attached Spill Map with Photos	Y	See Attached Spill map with Photos.	99				124	Drainage Conveyance System; Street/Curb and Gutter (2 3)		See attached Spill Map with Photos.	Y	38.66085	-121.32601	38.66207	-121.32736					04/25/2024 11:30	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		65	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		 SacSewer manhole spilled to a paved area, to the curb and gutter, to a storm drain inlet in front of 5999 Madison Ave, entering the storm drain system.   There was stagnant flow in the storm drain system.   The following locations were tested. �          SD inlet in front of 6049 Madison Ave � for upstream comparison purposes �          SDMH near the west driveway on Manzanita Ave � no presence of sewage detected   SacSewer crews cleaned the affected aboveground area and recovered the spill on land using a hydro-vacuum truck. Crews also hydro-cleaned the affected SD system from the storm drain inlet in front of 5999 Madison Ave to the SDMH near the west driveway on Manzanita Ave.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected mainline with CCTV on (Date). Based on findings, SacSewer increased preventative cleaning frequency to 6 months from 12 months.		04/25/2024 14:12	 SacSewer manhole spilled to a paved area, to the curb and gutter, to a storm drain inlet in front of 5999 Madison Ave, entering the storm drain system. Mainline asset had blockage of grease  		N/A	04/25/2024 14:12														N/A	SacSewer increased preventive cleaning frequency from 12 months to 6 months.	SacSewer increased preventive cleaning frequency from 12 months to 6 months.	N/A	SacSewer inspected mainline with CCTV on 4/29/24.	N/A	SacSewer increased preventive maintenance frequency on 4/30/24	N/A	N/A	
4	4SSO10399	Active	La Mirada City CS	La Mirada City	894973	1.2	Certified	Eric Liu	Civil Engineer	23-MAY-24	03-JUN-24	03-JUN-24	Category 1 Spill	2131-0545 (15948 Dalmatian Avenue, La Mirada)	05/20/2024 14:55	05/20/2024 15:30	05/20/2024 14:50		-		CSMD Map Sheet No. 2131 Manholes 545 and 546 MMS No. 8786504 Manholes 545 and 546 were overflowing.	33.88665	-118.00933	Manhole	Manholes 545 and 546.		150	Sewage was flowing from manholes 545 and 546 onto the street. A portion of the spill entered a storm drain located next to 15949 Dalmation Ave.	Y	A portion of the spill entered a storm drain located next to 15949 Dalmation Ave, which leads to Drain BI 4750 - U1 Line A PD 2380, PD 1037 - U1 - Coyote Creek, Unknown Channel, Coyote Creek, San Gabriel River. 	70	80	A portion of the spill entered a storm drain located next to 15949 Dalmation Ave.	80	70	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		A portion of the spill entered a storm drain located next to 15949 Dalmation Ave, which leads to Drain BI 4750 - U1 Line A PD 2380, PD 1037 - U1 - Coyote Creek, Unknown Channel, Coyote Creek, San Gabriel River. 	Y	33.88674	-118.00904							05/20/2024 15:44	Visual or Eyeball Method	The start time is obtained from the reporting party, the end time is when the crew clears the obstruction, and the overflow stops.	Debris-Rags; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		71	N/A	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow		Upon arrival, we found manholes 545 and 546 overflowing and contained the overflow with a sock. To help relieve the stoppage we hydro-jetted from manholes 523 to 545 and 546. Afterward, the area was thoroughly cleaned.  All required agencies were promptly notified.	Other (specify below)	The mainline will be inspected via CCTV to ensure no further action is required. 	The mainline will be inspected via CCTV to ensure no further action is required.	N/A	05/20/2024 18:20	The mainline will be inspected via CCTV to ensure no further action is required.	Y	The mainline will be inspected via CCTV to ensure no further action is required.	07/22/2024 10:40	Coyote Creek / San Gabriel River	Other (specify below); River	Coyote Creek / San Gabriel River	Coyote Creek / San Gabriel River	No impacts. 	Other (specify below)	No impact.	N/A	0	N	N											The mainline will be inspected via CCTV to ensure no further action is required.	
3	3SSO11465	Active	Goleta West SD CS	Goleta West SD	893543	3.1	Certified	Brian McCarthy	General Manager	23-FEB-24	22-MAY-24	22-MAY-24	Category 1 Spill	Airport Force Main 24	02/17/2024 08:24	02/17/2024 09:15	02/16/2024 19:28	02/17/2024 18:00	24-0124	02-APR-24	30 feet south of the south west corner of runway 33L at the Santa Barbara Municipal Airport.	34.4193	-119.83825	Force Main			1140657	Spill was originating out of the ground, 30 feet south of the southwestern corner of Runway 33L at the Santa Barbara Municipal Airport. Flow headed west and into the tributary spread across 145 linear feet of the embankment. Flow spread around the spill origin covering roughly 50 foot diameter circle area. Spill also headed south along the eastern edge of the service road in a 10 foot wide stream, then east along the northern edge of the service road where it pooled on the north side of the service road and created a triangular shaped wetted area. Flow also crossed over service road to the south and pooled in a drainage area. See attached spill map. 	Y	Tributary to west of spill origin that flows south roughly 400' and connects to Tecolotito Creek, which eventually leads to Pacific Ocean.	0	0	To the west of spill origin across 143' of embankment into tributary of Tecolotito Creek.	1071969	68961	Drainage Conveyance System that discharges to surface water		Spill was originating out of the ground, 30 feet south of the southwestern corner of Runway 33L at the Santa Barbara Municipal Airport. Flow headed west and into the tributary spread across 145 linear feet of the embankment. Flow spread around the spill origin covering roughly 50 foot diameter circle area. Spill also headed south along the eastern edge of the service road in a 10 foot wide stream, then east along the northern edge of the service road where it pooled on the north side of the service road and created a triangular shaped wetted area. Flow also crossed over service road to the south and pooled in a drainage area. See attached spill map. The spill origin is 30 feet from tributary of Tecolotito Creek, 1,000 linear feet from main body of Tecolotito Creek. Roughly 6,000 linear feet from location of spill entering the tributary to Goleta Slough inlet at Pacific Ocean if travelling along the waterway. Tributary had existing flowing water in it at time of spill. 	Y	34.41915	-119.83844	34.41915	-119.83848	34.41849	-119.8378	34.41902	-119.83724	02/17/2024 09:00	Assumed duration based on the earliest possible start time. Assumed total volume based on comparative average flow data. Assumed constant discharge throughout duration. For spill volume estimation, used flow telemetry at the regional treatment plant (operated by Goleta Sanitary District) to determine when leak occurred based on drop in flow received. Calculated total volume received at treatment plant during this time period and compared to historical average flow during the same time period. Estimated volume that did not enter the tributary by measuring wetted areas around spill origin and calculated volume based on average depths of wetted areas. Recovered amount calculated by known capacity of equipment used to remove wastewater and debris.	Assumed spill start time based on analyzing flow telemetry and noting when flow received at regional treatment plant dropped off from normal. Spill stop time determined by field observation of when water stopped coming out of ground after all valves were closed and pipe was isolated.	Other (specify below)	Primary cause of failure was external corrosion of the 24-inch force main caused by imperfect external corrosion protection and severely corrosive soils (severely corrosive, high chloride). No evidence of internal corrosion. Determined not to be caused by District�s operations. See attachment for #4.a for details.	Force Main		Ductile Iron		46	Current estimates are approximately 1,140,657 gallons of raw wastewater spilled from site. Roughly 68,961 gallons were contained within non-native dominated grassy area, of which 12,000 gallons were recovered by Vac truck and 21.25 tons of saturated solids were recovered and removed by dump truck, with approximately 1,593 gallons of wastewater. Approximately 1,116 gallons saturated soils. 1,071,969 gallons likely entered a tributary to Tecolotito Creek which eventually drains to the Pacific Ocean. Approximately a day and a half into response activities, spill area received approximately 3 inches of rain. Site monitoring is ongoing.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Other Enforcement Agency Notified; Property Owner Notified; Returned Portion of Spill to Sanitary Sewer System	See attachment for response to #9. In addition to details in attachment for response to #9, District removed 21.25 tons of wastewater solids on February 17 and March 28, revegetated the grassy area upland from embankment to tributary, and continues to monitor site.	See attachment for response to #9.	Repaired Facilities or Replaced Defect		See attachment to #10. In addition to details in attachment to #10, District has completed updates to its force main recommissioning SOP, received training on its updated SERP, set up temporary inflow monitoring and updated its integration of GSD�s flow data with the District�s SCADA, updated its contingency plan, replaced coupling bolts to reduce any other potential failure point, pressure tested the 24� line prior to recommissioning with engineers, and recommissioned the line successfully on 5/1. District retained additional compliance support over next several months to ensure highest standard of operations. More corrective action details in 4/2 Technical Report and 5/17 Update to Technical Report.	See attachment to #10.	03/01/2024 17:06	Uncovered pipe and found exterior coating of ductile iron had been compromised. Hole was roughly 6� in diameter with a 5� crack running from the hole along the side of the pipe. Independent engineer further investigated pipe and soil conditions and determined primary cause of failure was external corrosion of the 24-inch force main caused by imperfect external corrosion protection and severely corrosive soils (severely corrosive, high chloride). Details in Attachment 4 of May Technical Report Update. Expected life expectancy of pipe is 60 to 100 years and pipe age is 46 years. During excavation and replacement of portion of failed pipe, remaining pipe visually inspected with no issues seen. 	Y	GWSD will continue further investigation of incident alongside the broader assessment of forcemains for future rehabilitation or replacement with contracted engineering firm that has already begun to ensure incident does not occur again.	07/01/2024 18:30	Tributary to Tecolotito Creek, Mouth of Goleta Slough, Pacific Ocean	Ocean; Other (specify below)	Tributary located at south edge of estuary/slough	Tributary along south side of Goleta Slough which is designated as a state marine preserve and closed to fishing or collecting as marine protected area. Tributary joins Tecolotito Creek upstream of confluence with other creeks at Goleta Slough mouth to Pacific Ocean.  Multiple uses for water bodies defined in Basin Plan.	Staff has been monitoring tributary, Tecolotito Creek, and Goleta Slough multiple times on day of spill and subsequent weeks after, including 2/17, 2/18, 2/20 through 2/23, and 2/27 through present. This was done during water sampling activities as well as other site visits specifically to observe the waterway and aquatic life. No apparent impacts on aquatic life observed. Monitoring ongoing, and District in communication with California Public Health Department and retained Geosyntec Consultants for support.	Other (specify below); Public Closure	The local public health department issued a Beach Advisory on 2/16, before the spill in anticipation of water quality impacts of forecasted storm on 2/18 to 2/19. GWSD tracked whether the Goleta Beach area was closed and followed up to confirm. GWSD reached out to the local public health department on 2/21 and understands the beach was closed that day. GWSD was told by County staff on 2/25 that the beach was closed due to unrelated dredging and beach replenishment activities in the Goleta Slough by Santa Barbara County Flood Control District that started on 2/20. Based on water quality data, beach could be opened by 3/4, but was not reopened until 3/15 due to the unrelated beach replenishment activities and rain.	Santa Barbara County Public Health Department and Environmental Health Services	13	N	Y	Water samples were taken from 4 separate locations within the receiving tributary and downstream in Tecolotito Creek on 2/17 in the afternoon. Upstream from the discharge point, at the discharge point, and two downstream of the discharge point where water is fully mixed with receiving water. Additional samples were taken upstream of the contact point and below for reference. Samples were taken at sample sites 1 through 4 between 3:30PM and 4:00PM on 2/17/24. Sample site 4 was replaced by sample site 5 & 6 during the next sampling period on 2/22/24. Sample sites 1, 2, 3, 5 & 6 were sampled again on 2/27 and 2/29/24. Refer to sample location map for specific locations.  GWSD understands samples are also being collected by other local agencies including local health department.	All samples were analyzed for total and fecal coliform and ammonia.  GWSD is consulting with other agencies, plans including Ocean Plan, and continuing to sample post-spill conditions until further guidance.									GWSD will continue further investigation of incident alongside the broader assessment of forcemains for future rehabilitation or replacement with contracted engineering firm that has already begun to ensure incident does not occur again.	
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	894986	1.2	Certified	Daniel Whitlock	Manager	23-MAY-24	04-JUN-24	04-JUN-24	Category 2 Spill	300 Twin Peaks Blvd	05/20/2024 09:10	05/20/2024 09:30	02/01/2024 08:00		-		Backyard of 300 Twin Peaks. Coming from easement P-102533.	37.75739	122.44838	Gravity Mainline		Coming out of mortered joint inside rockwall.	3170	In backyard of 300 Twin Peaks. On rock platform and dirt.	N						0	Other (specify below); Unpaved Surface	Landscape (rock and dirt)	Contained to the backyard of 300 Twin Peaks Ave.	Y	37.75739	122.44838							05/21/2024 10:00	Duration of flow calculation.  158,520 minutes x .02 gallons/minute = 3170 gallons	Flow rate calculated as .02 gallons per minute.  Feb 1st at 8:00am 2024 to May 24th 2024 at 10:00am = 158,520 minutes	Pipe Structural Problem/Failure - Installation		Gravity Mainline		Vitrified Clay		94	Impacted backyard landscape. Flowed out of a wall via drips and absorbed into flagstone pavers.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Property Owner Notified		Upon arrival, created a containment BERM of dirt to contain spill. Cleaned and disinfected the area. Dye test was also done.	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		Asset was repaired CCTV'd via work order 8406776 which found a leaking joint in retaining wall.  Repair work order 8406817 issued to repair asset P-102533	Notified of spill on 5/20 CCTV Inspection on 5/20 Pipe repaired on 5/21 Spill cleanup on 5/21  	05/21/2024 11:00	Pipe leaked due to a poorly installed joint.	N												N													
4	4SSO10431	Active	Santa Monica City CS	Santa Monica City	894987	1.1	Certified	Ralph Valencia	Water/Wastewater Administrator		06-JUN-24	06-JUN-24	Monthly Category 3 Spill	745 21st Place	05/22/2024 13:15	05/22/2024 13:30	05/22/2024 12:45				Spill occurred from City of Santa Monica manhole located in alley between 21st place and 22nd place.	34.03838	-118.48835	Manhole			125	Spill followed gutter along 21st place and to the storm drain right before Montana.	Y	Spill reached the Montana Avenue storm drainage basin which gets diverted to Hyperion Wastewater Treatment plant.	125				125	Other (specify below)	Hyperion Wastewater Treatment Plant	Hyperion Wastewater Treatment Plant 	Y	33.92931	-118.43198							05/22/2024 13:45	Estimations were determined based on visual observations as well as SSCSC Manhole Overflow Gauge.	Based on arrival using SSCSC gauge, a flow of 30gal/min was observed for 1 min. Assuming 1 overflow event every 15min for 60min at 30gal/min it would equal 120gal/min. 5gal added for additional runoff.	Root Intrusion		Gravity Mainline		Vitrified Clay	Lined VCP pipe	24	Spill followed the stormwater runoff route from the alley to the storm drain right before Montana Ave.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Blockage was hydrojetted, overflow was disinfected than powerwashed into vacuum truck. Follow up with CCTV camera.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Inspected sewer using CCTV, adjusted sewer to preventive maintenance program.		05/22/2024 13:45	Spill was caused by root obstruction in mainline. 		Inspecting sewer using CCTV and adding sewer to preventive maintenance program.	06/05/2024 15:30														Contacted Office of Emergency Services and Los Angeles County Department of Health Services.	Inspecting sewer using CCTV and adjusting sewer to preventive maintenance program.	Yes	No	No	No	Yes	Blockage was hydrojetted, overflow was disinfected than power washed into vacuum truck. Follow up with CCTV camera. Inspected sewer using CCTV, added sewer to preventive maintenance program.	Inspecting sewer using CCTV and adding sewer to preventive maintenance program.	
8	8SSO11513	Active	IRWD - OCSD Regional 1 CS	Irvine Ranch Water District	894997	1.2	Certified	William Kleinau	Collection Systems Manager	23-MAY-24	04-JUN-24	04-JUN-24	Category 1 Spill	2400 Main St, Irvine, CA 92614	05/21/2024 12:05	05/21/2024 12:05	05/21/2024 12:05	05/21/2024 13:57	24-2901		33.68325, -117.84551	33.68325	-117.84551	Other (specify below)	A combination vehicle was collecting debris from a manhole during sewer line cleaning. A seal was not seated correctly on the holding tank of the combination vehicle and was leaking out of the seal to the catch basin/drainage channel.		165	See attached.	Y	See attached.	50	115	See attached.	115	50	Drainage Conveyance System that discharges to surface water		 See Attachment 	Y	33.68328	-117.84561							05/21/2024 12:16	 See Attachment 	 See Attachment 	Collection System Maintenance Failure (specify below)	 See Attachment 	Other (specify below)	 See Attachment 	Vitrified Clay		50	 See Attachment 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Other Enforcement Agency Notified; Returned Portion of Spill to Sanitary Sewer System	 See Attachment 	 See Attachment 	Other (specify below)	 See Attachment 	 See Attachment 	 See Attachment 	05/21/2024 14:00	 See Attachment 	N			San Diego Creek	Other (specify below)	San Diego Creek.	 See Attachment 	 See Attachment 	Other (specify below)	 See Attachment 	The OC Health Care Agency (HCA) Environmental Health Division	0	N	N												
2	2SSO18110	Active	Treasure Island Development Authority CS	Treasure Island Development Authority	895003	1.1	Certified	Robert Beck	Treasure Island Director		03-JUN-24	03-JUN-24	Monthly Category 3 Spill	Sturgeon Street at 12th Street 	03/03/2024 15:08	03/03/2024 15:08	03/03/2024 15:00				Overflow from manhole flowing into catch basin on stripedbases to catch basin, flows to discharge station 25 which was tagged out for recovery. (Manhole w/one pick hole)	37.824231	122.372919	Backflow Prevention Device; Force Main; Gravity Mainline; Manhole			800	Photso attached 	N						800	Other (specify below); Paved Surface; Street/Curb and Gutter (2 3)	Separate Storrm drain	Photos attached to work order										03/03/2024 17:00	Witness account from residential area next to manhole that spill originated from started approx. 3 pm it was not noticed to have began.	Start time was est at 3:00 PM on 2/2/2024 stop time was 5:00 PM 3/32024=total run time of 26 hrs station run time approx 30 min are hour at 25 GPM 25 GPM x30 mins=750 gals per hour Original flow 1/4 gals from 10:00 PM-8:00 Am=10 hrs=187.5 GPH 16 Hrs at 750 GPH=12000Gals 10 Hrs at 187.5 GPH=1875 Total estimate 18,875	Fats, Oil and Grease (FOG)		Force Main		Vitrified Clay		85	NA	Y	Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Containment in PS#25, Flush storm line to pump well, clean and wash streets and gutters. use Vac to recover and return to treatment plant 	Enforcement action against Fats, Oil, and Grease (FOG) source		NA		03/03/2024 17:00	NA		NA	03/03/2024 17:00														NA	NA	NA	NA	NA	NA	NA	NA	NA	
5F	5SSO11258	Active	Traver CS	Tulare Cnty Resource Management Agency	895004	1.4	Certified	Ross Miller	Chief Engineer		13-JUN-24	13-JUN-24	Monthly Category 3 Spill	Church Dr - backyard	05/18/2024 08:40	05/18/2024 09:30	05/18/2024 08:30				Lift station pumps tripped and failed to turn back on. The spill came up at the backyard of a local resident on Church Dr.	36.455	-119.47441	Lateral Clean Out (Private)			500	A 15ft by 15ft area	N						10	Unpaved Surface		Back yard of residents home. 36�27'15.92 N, 119�29'3.68 W	Y	36.45438	-119.48444							05/18/2024 10:45	Size of the spill site and when we where notified. Estimate provided by responding operator.	Estimate provided by responding operator. He used the size of the spill.	Pump Station Failure - Controls		Pump Station - Controls		Polyvinyl Chloride (PVC)		30	flooded back yard of resident	N	Cleaned Up (specify below)		solids removed and location disinfected	Other (specify below)	Will review control equipment and improve as needed.	Will review control equipment and improve as needed.		05/18/2024 12:00	in progress		Will review control equipment	06/13/2024 17:56														none	review control equipment and improve as needed.	none	replacement of pump and control equipment being considered	in progress	replacement of pump and control equipment being considered	none	none	Will review control equipment	
5F	5SSO20040	Active	Traver CS	Tulare Cnty Resource Management Agency	895004	1.4	Certified	Ross Miller	Chief Engineer		13-JUN-24	13-JUN-24	Monthly Category 3 Spill	Church Dr - backyard	05/18/2024 08:40	05/18/2024 09:30	05/18/2024 08:30				Lift station pumps tripped and failed to turn back on. The spill came up at the backyard of a local resident on Church Dr.	36.455	-119.47441	Lateral Clean Out (Private)			500	A 15ft by 15ft area	N						10	Unpaved Surface		Back yard of residents home. 36�27'15.92 N, 119�29'3.68 W	Y	36.45438	-119.48444							05/18/2024 10:45	Size of the spill site and when we where notified. Estimate provided by responding operator.	Estimate provided by responding operator. He used the size of the spill.	Pump Station Failure - Controls		Pump Station - Controls		Polyvinyl Chloride (PVC)		30	flooded back yard of resident	N	Cleaned Up (specify below)		solids removed and location disinfected	Other (specify below)	Will review control equipment and improve as needed.	Will review control equipment and improve as needed.		05/18/2024 12:00	in progress		Will review control equipment	06/13/2024 17:56														none	review control equipment and improve as needed.	none	replacement of pump and control equipment being considered	in progress	replacement of pump and control equipment being considered	none	none	Will review control equipment	
5F	5SSO10771	Active	Tuolumne Utilities District CS	Tuolumne Utilities District	895009	1.2	Certified	Aidan Whitmer	Collection Foreman	24-MAY-24	31-MAY-24	31-MAY-24	Category 1 Spill	Mill Villa Estates MH3342	05/23/2024 20:09	05/23/2024 20:31	05/23/2024 18:35	05/23/2024 23:44	24-2969		Sewer spilled from the manhole in the neighborhood park and recreation area. This sewer ran along the sidewalk, through the grass and down a hill into woods creek.	37.96194	-120.39987	Manhole	N/A	N/A	1432	Spill extended to the concrete walkway, made its way into the grass and headed down the blackberry covered hill into the creek.	Y	The spill made its way into Woods creek. Woods creek is a small stream that travels down and feeds into Don Pedro Reservoir.	0	1432	There was only one discharge point to surface water. The sewer came down the hill near the picnic bench and went through all the black berry bushes to the creek.	1432	0	Surface Water	Spilled directly from manhole to creek. Creek leads to Don Pedro Reservoir.	Sewer spilled from the manhole onto the sidewalk, then traveled into the grass area towards the picnic bench, and then down the hill into Woods Creek. Coordinates d & e are the spill origination point, coordinates f & g are the point where the spill entered the creek. Coordinates h & I is where woods creek enters Don Pedro Reservoir.	Y	37.96195	-120.39985	37.96212	-120.39983	37.87032	-120.40823			05/23/2024 20:45	Spill volume was calculated using the Orange County Sewer Spill Estimation Guide. I measured a 3/4  plume of sewer coming out between the frame and lid of the manhole as well as two semicircular 1  pick holes with 2  tall plumes of sewer coming out. I was able to calculate an estimated 11GPM using the spill estimation guide and multiplied that by the 130 minutes that we believe the spill to have ran.	I believe the spill started at 1835(6:35 pm). I talked to the manager at the Mill Villa Estates who took the original call from the customer. She told me a resident first reported the spill at 1841 thinking it was water leaking. The spill had not yet made it to the creek and was just starting to get into the grassy area near the manhole. This account leads me to believe the spill started about 6 minutes beforehand.	Debris from Lateral	Debris was pushed down from a private collection system by a plumber.	Manhole	N/A	Ductile Iron	N/A	2	The spill entered woods creek but there have been no visual impacts on water clarity, plants, or wildlife.	N	Cleaned Up (specify below); Restored Flow	All solids were raked and swept up. Any solids and any standing water was then vacuumed up with a vac truck. Once the entire area was free of solids we disinfected everything with DC Pine disinfectant.	When I had arrived on site, I immediately called another employee who was already headed to the office and asked him to bring a vac truck out. While waiting for him to arrive I took photos of the spill and the spill area to help me with reporting purposes. I then opened the manhole and started feeling around with an extended tool hoping the blockage was in the invert of the manhole, but it turned out to be just below the manhole. The vac truck driver arrived and we immediately started vacuuming the manhole, effectively ending the spill at 2045. Once the spill had stopped we were able to get the blockage cleared using a hydro jetter, we CCTV'd the line, and started the cleanup process described in section 9a. above. 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	N/A	I talked to the Mill Villa Estates employees and asked them to notify us when they are working on their sewer issues in the future.	N/A	05/23/2024 23:30	Spill was caused by excessive debris being pushed into our mainline by a private plumber. Included in the debris were rocks, pieces of pipe and roots that settled in our line and eventually backed our system up.	N	N/A		Don Pedro Reservoir	Reservoir	N/A	Don pedro reservoir is a large body of water storing 2,030,000 of water. The water is used by Turlock Irrigation District and Modesto Irrigation district  for irrigation water downstream.	No visible impacts observed on aquatic life.	Temporary Restricted Use		Tuolumne Utilities District	2	N	N	N/A	N/A									N/A	
2	2SSO10181	Active	San Leandro CS	San Leandro City	895023	1.1	Certified	Charles Hayes Morehouse	Water Pollution Control Manager		24-MAY-24	24-MAY-24	Monthly Category 3 Spill	899 Portola Dr	04/11/2024 19:49	04/11/2024 21:00	04/11/2024 19:06				Manhole 901+43 (GPS:  37.7022642, -122.1505186) was reported discharging in the middle of the street, close to 899 Portola Dr, San Leandro 94578. The plug was broken from the downstream manhole (901+27, 37.702191, -122.150729) at the intersection of Monterrey Blvd and Portola Dr. 	37.7022642	-122.1505186	Gravity Mainline; Manhole			99	The spill was contained in the storm system upstream of MH 12220 at the corner of Portola Dr and Monterey Blvd. See attachments for spill extent diagram and photographs.	Y	Sewage entered the storm drain pipe through storm drain inlet in front of 899 Portola Dr. Investigation showed that the farthest extent was the  storm drain manhole in front of 912 Portola drive (GPS: 37.702522, -122.151210).	99				99	Drainage Conveyance System		All sewage was recovered in the storm system.										04/11/2024 20:45	The spill volume was calculated based on the length and volume of the pipe, based on observations of the depth of the water before cleanup commenced. The water remaining on the surface in the street and before the inlet was also included based on depth and area.  The calculation assumes the length of the pipes in GIS are accurate, and that they contained a uniform depth of sewage. This is a conservative assumption, because the greatest observed depth was used. The volume was calculated with the assistance of omnicalculator.com to calculate volume of a partially full pipe. 	The manhole was not overflowing when crews arrived. The end time was estimated based on the observed moisture on the ground. The start time was based on the calculated estimated volume and an average low flow rate of 1 GPM.	Debris from Lateral; Debris-General; Debris-Rags; Debris-wipes/Non-disposables		Gravity Mainline		Vitrified Clay		68	The spill was fully contained and recovered in the storm system, so no impacts are expected.	N	Cleaned Up (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Upon arrival and after documentation, crews hydrojetted from the downstream manhole. The plug was found approximately 10 feet upstream in the City's main. The crews then washed and vacuumed the storm system. The City's main was then checked and hydrojetted again.	Inspected Sewer Using CCTV to Determine Cause		The section of pipe was inspected via CCTV. No defects were found. The location has been added to the  hot spot  list for more frequent checks.		04/15/2024 15:03	The spill appears to have been caused by a buildup of debris in the line. Mailers discouraging the flushing FOG and wipes will be sent in May 2024. This is the first spill in this location, so the area will be added to a checklist for more frequent inspection. If the problem recurs, more outreach will be done to discourage debris entering the collection system.		None	04/15/2024 15:04														None necessary	CCTV did not indicate repairs are necessary	The location was added to the weekly hotspot list.	None necessary at this time	Pipe segment 901+43-901+27 was CCTV inspected on 4/15/2024 and no significant issues were identified.	None planned at this time.	CCTV 	Ensure that staff take photographs of any part of the spill before commencing cleanup.	None	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	895030	1.2	Certified	Gerald Watson	Sanitation Wastewater Manager III		06-JUN-24	06-JUN-24	Monthly Category 3 Spill	19010 West Napa Street	05/22/2024 14:23	05/22/2024 14:53	05/22/2024 14:23				The initial crew arrived at 2:53 P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.224721	-118.546491	Manhole	None		54	Sanitary Sewer Overflow.	N	None	0				54	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	Y	34.224721	-118.546491							05/22/2024 15:38	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.	DIAMETER = .75 INCHES HEIGHT = .125 # OF PICKHOLES = 1 DURATION = 75 MINUTES   TOTAL = 54 GALLONS	Debris-Rags		Gravity Mainline		Vitrified Clay		71	It was estimated that approximately 54 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment, and subsequently they returned the entire back up amount to the sewer system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The cause of the blockage in the sewer line was attributed to debris accumulation. The crew removed the blockage and the backup ceased at 3:38 PM. All necessary clean-up was then performed.	Inspected Sewer Using CCTV to Determine Cause		A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The cause of the blockage in the sewer line was attributed to debris accumulation. The crew removed the blockage and the backup ceased at 3:38 PM. All necessary clean-up was then performed.		05/22/2024 15:38	On Wednesday, May 22, 2024, at 2:23 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 19010 West Napa Street (TG 530-G1). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The cause of the blockage in the sewer line was attributed to debris accumulation. The crew removed the blockage and the backup ceased at 3:38 PM. All necessary clean-up was then performed.  It was estimated that approximately 54 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment, and subsequently they returned the entire back up amount to the sewer system. 		None At This Time.	05/22/2024 15:38														None at this time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	None at this time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	None at this time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	On Wednesday, May 22, 2024, at 2:23 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 19010 West Napa Street (TG 530-G1). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The cause of the blockage in the sewer line was attributed to debris accumulation. The crew removed the blockage and the backup ceased at 3:38 PM. All necessary clean-up was then performed.  It was estimated that approximately 54 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment, and subsequently they returned the entire back up amount to the sewer system. 	None At This Time.	
2	2SSO18110	Active	Treasure Island Development Authority CS	Treasure Island Development Authority	895031	1.2	Certified	Robert Beck	Treasure Island Director		03-JUN-24	03-JUN-24	Monthly Category 3 Spill	Sturgeon Street at 12th Street 	03/04/2024 13:30	03/04/2024 13:05	03/04/2024 12:52				Spill from manhole at cross walk of Sturgeon Street at 12th Street, and runs down to Striped Bass Street catch basin across from 1420 Striped Bass Street.	37.8259354	-122.3752173	Manhole			300	Spill from manhole at cross walk of Sturgeon Street at 12th Street, and runs down to Striped Bass Street catch basin across from 1420 Striped Bass Street.	N						300	Other (specify below)	Vacuum Truck/Sewer system	NA										03/04/2024 13:05	by visual inspection/vacuum truck size	NA	Debris-General; Debris-Rags; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		85	No impact or damage to property or business	N	Contained All or Portion of Spill; Returned Portion of Spill to Sanitary Sewer System		Spill came out of manhole due to grease plug at inlet pipe to the sewer pump station. Staff arrived and assess area. No damage to properties. Plant operator was able to shut off the pump at the station to stop the spill at the manhole. Vacuum truck was set up to contain and retrieve all spills. Wash sown and sanitized affected area.	Other (specify below)	Cleaned-up, contained all spill, restored flow and returned all spill to sewer system	NA		03/04/2024 14:50	NA		NA	03/04/2024 14:50														NA	NA	NA	NA	NA	NA	NA	NA	NA	
4	4SSO11388	Active	County Sanitation District Joint Outfall CS	Los Angeles Cnty Sanitation Districts	895032	1.1	Certified	Andre Schmidt	Wastewater Collection Systems Manager		29-MAY-24	29-MAY-24	Monthly Category 3 Spill	Long Beach Interceptor Pumping Plant (District 19)	04/02/2024 11:21	04/02/2024 10:50	04/02/2024 10:50				The spill originated from LACSD�s Long Beach Interceptor Pumping Plant, located at 6330 E Atherton St in the City of Long Beach.	33.788292	-118.109349	Other Sewer System Structure	Surge Tank Air Release Valve		620	After spilling from the air release valve, the wastewater travelled 120 feet north along the surge tank and out to the pumping plant driveway (See Photo 2), then east 350 feet in the gutter on Atherton Street (See Photo 3) up to the catch basin located at the southwest corner of Atherton and Palo Verde Avenue, then 1250 feet east to the City of Long Beach Storm Drain Pumping Station #09 through the storm drain system.	Y	The spill entered a catch basin, which conveys stormwater to a 72-inch culvert on Atherton Street & Hackett Avenue then to the City of Long Beach Pump Station #09.	5				620	Drainage Conveyance System		After spilling from the air release valve, the wastewater travelled 120 feet north along the surge tank and out to the pumping plant driveway (See Photo 2), then east 350 feet in the gutter on Atherton Street (See Photo 3) up to the catch basin located at the southwest corner of Atherton and Palo Verde Avenue, then 1250 feet east to the City of Long Beach Storm Drain Pumping Station #09 through the storm drain system.	Y	33.788848	-118.104057	33.788573	-118.108265	33.788282	-118.109356			04/02/2024 11:21	A spill rate of 20 gallons per minute was established based on observations and photos, videos taken at the spill site.  The spill duration was estimated to be 31 minutes. Thus, approximately 620 gallons of wastewater spilled from LBIPP. All 620 gallons of spill volume was recovered.	LACSD staff was present on-site at the start time and end time of the spill.	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure		Air Relief Valve (ARV)/ Blow-Off Valve (BOV)		Galvanized Steel		20	The spill impacted small portion of street pavements while majority of spillage was collected along curb and gutter of eastbound side of Atherton St.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		See Attachment	Repaired Facilities or Replaced Defect		LACSD installed stainless steel pipe nipples for surge tank air release valves in lieu of galvanized steel pipe nipples.		04/02/2024 18:25	See Attachment		N/A	05/29/2024 00:00														N/A	N/A	N/A	N/A	LACSD replaced the corroded galvanized steel pipe nipple to a stainless steel pipe nipple.	N/A	N/A	N/A	N/A	
1	1SSO11467	Active	Fort Bragg City CS	Fort Bragg Municipal Improvement Dist 1	895033	1.1	Ready to Certify						Monthly Category 3 Spill	North Harbor Drive	05/26/2024 07:10	05/26/2024 07:20	05/26/2024 07:10				force main cracked causing sewage to leak from pipe	39.42704	-123.80286	Force Main			800	sewage travel down the road and went into the brush	N						500	Unpaved Surface		sewage ran about 200ft down the road	Y	39.42542	-123.80335							05/26/2024 09:10	visual 	visual, pump data	Pipe Structural Problem/Failure - Controls		Force Main		Other (specify below)	tactite	50	no impact	N	Other Enforcement Agency Notified; Restored Flow		sucked up with vac truck until other sewer trucks showed up	Plan Rehabilitation or Replacement of Sewer		engineer a replacement or slip line		05/26/2024 10:05	the pipe broke, most likely from ground drying out form long winter		will be looking into the best way to rehabilitate this force main	05/26/2024 10:05														na	na	na	will start looking into replacement/ rehabilitation	installed repair band on broken segment	will add 	na	na	will be looking into the best way to rehabilitate this force main	
1	1SSO11467	Active	Fort Bragg City CS	Fort Bragg Municipal Improvement Dist 1	895034	1.1	Ready to Certify						Monthly Category 3 Spill	North Harbor Drive	05/26/2024 07:10	05/26/2024 07:20	05/26/2024 07:10				force main cracked causing sewage to leak from pipe	39.42704	-123.80286	Force Main			800	sewage travel down the road and went into the brush	N	na					500	Unpaved Surface		sewage ran about 200ft down the road		39.42542	-123.80335							05/26/2024 09:10	visual 	visual, pump data	Pipe Structural Problem/Failure - Controls		Force Main		Other (specify below)	tactite	50	no impact	N	Other Enforcement Agency Notified; Restored Flow		sucked up with vac truck until other sewer trucks showed up	Plan Rehabilitation or Replacement of Sewer		engineer a replacement or slip line		05/26/2024 10:05	the pipe broke, most likely from ground drying out form long winter		will be looking into the best way to rehabilitate this force main	05/26/2024 10:05														na	na	na	will start looking into replacement/ rehabilitation	installed repair band on broken segment	will add 	na	na	will be looking into the best way to rehabilitate this force main	
1	1SSO11467	Active	Fort Bragg City CS	Fort Bragg Municipal Improvement Dist 1	895035	1.3	Certified	John Smith	Director of Public Works		28-MAY-24	28-MAY-24	Monthly Category 3 Spill	North Harbor Drive	05/26/2024 07:10	05/26/2024 07:20	05/26/2024 07:10				force main cracked causing sewage to leak from pipe	39.42704	-123.80286	Force Main	na	na	800	sewage travel down the road and went into the brush	N						500	Unpaved Surface		sewage ran about 200ft down the road		39.42542	-123.80335							05/26/2024 09:10	visual 	visual, pump data	Pipe Structural Problem/Failure - Controls		Force Main		Other (specify below)	tactite	50	no impact	N	Other Enforcement Agency Notified; Restored Flow		sucked up with vac truck until other sewer trucks showed up	Plan Rehabilitation or Replacement of Sewer	na	engineer a replacement or slip line		05/26/2024 10:05	the pipe broke, most likely from ground drying out form long winter		will be looking into the best way to rehabilitate this force main	05/26/2024 10:05														na	na	na	will start looking into replacement/ rehabilitation	installed repair band on broken segment	will add 	na	na	will be looking into the best way to rehabilitate this force main	
1	1SSO11467	Active	Fort Bragg City CS	Fort Bragg Municipal Improvement Dist 1	895036	1.1	Ready to Certify						Monthly Category 3 Spill	North Harbor Drive	05/26/2024 07:10	05/26/2024 07:20	05/26/2024 07:10				force main cracked causing sewage to leak from pipe	39.42704	-123.80286	Force Main	na	na	800	sewage travel down the road and went into the brush	N						500	Paved Surface; Unpaved Surface		sewage ran about 200ft down the road		39.42542	-123.80335							05/26/2024 09:10	visual 	visual, pump data	Pipe Structural Problem/Failure - Controls		Force Main		Other (specify below)	tactite	50	no impact	N	Other Enforcement Agency Notified; Restored Flow		sucked up with vac truck until other sewer trucks showed up	Plan Rehabilitation or Replacement of Sewer	na	engineer a replacement or slip line		05/26/2024 10:05	the pipe broke, most likely from ground drying out form long winter		will be looking into the best way to rehabilitate this force main	05/26/2024 10:05														na	na	na	will start looking into replacement/ rehabilitation	installed repair band on broken segment	will add 	na	na	will be looking into the best way to rehabilitate this force main	
2	2SSO10228	Active	Fair Oaks SMD	San Mateo County DPW	895039	1.2	Certified	Mark Chow	Principal Civil Engineer	28-MAY-24	05-JUN-24	05-JUN-24	Category 1 Spill	1855 Woodside Road	05/22/2024 11:18	05/22/2024 11:20	05/22/2024 08:00	05/28/2024 11:49	24-3047		The sewage came out of a manhole.	37.45207	-122.229849	Gravity Mainline			1018	The spill flowed from the driveway to the street curb/gutter and then went into the storm drain catch basin.	Y	A storm drain catch basin that leads to surface water.	81	937	A storm drain catch basin	937	81	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		The spill came out of a manhole and flowed to the driveway and street curb/gutter, then into a storm water catch basin that leads to surface water.	Y	37.453104	-122.229304							05/22/2024 13:00	Eye ball estimation of flow rate was used to calculate total spill volume.	The spill start time was estimated based on the information provided by resident during interview and the spill end time was when the crew cleared the blockage.	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Other (specify below)	HDPE	2	The spill impacted surface waters.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Storm drain inlet was already covered with mat by another agency. Field staff placed sandbags over the mat to stop the spill from entering the storm drain inlet and vacuumed portions of the spill with combination truck.	Other (specify below)	The owner or manager of the apartment building will be contacted to provide educational brochures to the residents in the building.	The owner or manager of the apartment building will be contacted to provide educational brochures to the residents in the building.	Educational efforts will be conducted in June 2024.	05/22/2024 13:00	The sewer line was recently replaced with HDPE pipe as part of a CIP project. There was no infrastructure defects. The spill was caused by grease and wipes from the apartment building.	N			San Francisco Bay	Other (specify below)	the bay	Storm drain leading to the bay	Not applicable as the spill entered the storm drain system and not directly to a surface water.	Other (specify below)	There was no impact to public access.	Not applicable	0	N	N												
8	8SSO11418	Active	Hemet City CS	Hemet City	895043	1.1	Certified	Travis Holyoak	Water Wastewater Superintendent 		03-JUN-24	03-JUN-24	Monthly Category 3 Spill	CASA DEL SOL NORTH/WEST CORNER-ALLEY	05/24/2024 17:45	05/24/2024 18:00	05/24/2024 18:05				Spill occurred at the manhole on the North West side of CASA Del SOL RV Park, City was notified of a sewer drainage issue at Casa Del Sol, it was determined to be a backed up sewer line owned by the City of Hemet.  While equipment was in route to clear blockage, the spill occurred at the manhole which started flowing down the curb behind a shopping center roughly to the west towards Sanderson Ave. roughly 1200 ft west of the manhole.  Blockage was cleared and spill was recovered.  See attachment	33.74748	-117.00212	Gravity Mainline; Manhole			900	From Manhole location spill traveled west towards Sanderson Ave. roughly 1200 from manhole	N						900	Street/Curb and Gutter (2 3)		from manhole at Latitude 33.74562 Longitude -117.00212 traveled west towards Sanderson Ave along curb of alley roughly 1200ft, see attachment	Y	33.74562	-117.00212							05/24/2024 19:00	SSCSC Manhole Overflow Gauge, flow calculated with minutes of flow.  used vactor truck to clean up spill volume equaled calcualtion	SSCSC Manhole Overflow Gauge, personnel documented time of call and arrival along with time of end of spill to determine minutes.  Spill did not start until personnel were on scene investigating.	Collection System Maintenance Failure (specify below); Debris-General	Broken shelf of a manhole	Manhole		Concrete		40	no impact on system	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System	cleaned up all spill 	staff showed up on scene to investigate sewer issue, determined a blockage was in  the line, staff brought out equipment to clear blockage and during that time is when the spill occurred.  staff cleared blockage while other staff created a barrier to prevent spill from reaching roadway and or storm basins.  staff cleaned up spill and debris and returned sewer system to normal operation.	Inspected Sewer Using CCTV to Determine Cause		Manhole is being put on CIP list for rehab.		05/24/2024 19:30	part of the channel in the manhole broke off causing a reduce flow of the line which then created the collection of debris creating a blockage in the line.		none at this time	05/28/2024 12:00														no	rehab manhole	none	rehab of manhole	inspected mainline and manhole	rehab manhole in future	no adjustments	no modifications	none at this time	
2	2SSO10154	Active	Mill Valley City CS	Mill Valley City	895044	1.2	Certified	Andrew Poster	Director of Public Works		29-MAY-24	29-MAY-24	Monthly Category 3 Spill	60 Kipling Drive	05/24/2024 14:36	05/24/2024 15:30	05/24/2024 14:30				See attachments.	37.90606	-122.57121	Manhole	Manhole VF3		50	Spill appeared at manhole, flowed onto and absorbed into land. 	N						0	Unpaved Surface		Spill appeared at manhole, flowed onto and absorbed into land. 										05/24/2024 15:40	Drop bucket estimation method.	Drop bucket estimation method.	Root Intrusion		Gravity Mainline		Vitrified Clay		40	Minimal impact as spill was absorbed into land. 	N	Mitigated Effects of Spill (specify below); Restored Flow		Cleared line, restored flow. 	Other (specify below)	Cleared line. 	N/A		05/24/2024 15:40	Spill appeared at manhole, flowed onto and absorbed into land. 		N/A	05/24/2024 15:40														N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	
3	3SSO11609	Active	Pacific Grove City CS	Pacific Grove City	895045	1.1	Ready to Certify						Monthly Category 3 Spill	1252 Buena Vista	05/24/2024 07:30	05/24/2024 07:37	05/24/2024 07:29				The Spill was generated from a manhole in the roadway	36.59924	-121.93172	Manhole			450	The sewer main line was blocked by grease and roots.  Wastewater was coming out of the manhole.  	Y	A storm drain which leads to land 	0				400	Unpaved Surface		Unpaved surface, land, in the Del Monte forest that was not accessible by staff.  										05/28/2024 07:50	Amount of flow and rate of flow.  	visual	Fats, Oil and Grease (FOG); Root Intrusion		Manhole		Vitrified Clay		70	No impacts.  Crews diked the spill, containing it to the roadway where almost all of the spill was recovered.  	N	Returned Portion of Spill to Sanitary Sewer System		Crews diked the spill, containing it to the roadway where almost all of the spill was recovered.  	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source		We will include this line in our root control maintenance activities.  		05/24/2024 07:50	Crews determined spill was caused by roots and grease.  Crews unblocked the system and then cleaned the line to alleviate any future blockage.  		None	05/24/2024 08:30														N/A	N/A	We will include this line in our root control maintenance activities. 	N/A	Inspected and no issues.  	N/A	No modifications needed	No modifications needed	None	
3	3SSO11609	Active	Pacific Grove City CS	Pacific Grove City	895046	1.1	Certified	Daniel Gho	Director		28-MAY-24	28-MAY-24	Monthly Category 3 Spill	1252 Buena Vista	05/24/2024 07:30	05/24/2024 07:37	05/24/2024 07:29				The Spill was generated from a manhole in the roadway	36.59924	-121.93172	Manhole			450	The sewer main line was blocked by grease and roots.  Wastewater was coming out of the manhole.  	Y	A storm drain which leads to land 	0				400	Unpaved Surface		Unpaved surface, land, in the Del Monte forest that was not accessible by staff.  										05/28/2024 07:50	Amount of flow and rate of flow.  	visual	Fats, Oil and Grease (FOG); Root Intrusion		Manhole		Vitrified Clay		70	No impacts.  Crews diked the spill, containing it to the roadway where almost all of the spill was recovered.  	N	Returned Portion of Spill to Sanitary Sewer System		Crews diked the spill, containing it to the roadway where almost all of the spill was recovered.  	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source		We will include this line in our root control maintenance activities.  		05/24/2024 07:50	Crews determined spill was caused by roots and grease.  Crews unblocked the system and then cleaned the line to alleviate any future blockage.  		None	05/24/2024 08:30														N/A	N/A	We will include this line in our root control maintenance activities. 	N/A	Inspected and no issues.  	N/A	No modifications needed	No modifications needed	None	
2	2SSO10179	Active	San Jose City CS	San Jose City	895047	1.2	Certified	Ben Nguyen	Senior Engineer	28-MAY-24	06-JUN-24	06-JUN-24	Category 1 Spill	4830 Kinghurst Drive San Jose CA 95124	05/22/2024 20:46	05/22/2024 21:13	05/22/2024 19:30	05/22/2024 22:06	24-2936		The spill appearance point was a sanitary sewer manhole in front of the property at 4830 Kinghurst Drive, San Jose, CA 95124. A picture of the overflowing manhole was uploaded as an attachment named  SpillGeneralInfo_07_SpillAppearancePointMH452 .	37.249559374682	-121.948562729064	Manhole			1120	Sewage discharged from the spill appearance point (manhole) onto the street and traveled North in the curb/gutter along Kinghurst Dr. From the curb/gutter, the spill eventually reached a nearby storm drain system inlet at the SE intersection of Kinghurst Dr and Lost Oaks Dr. This storm inlet is connected to the City of San Jose's municipal storm sewer system. The spill then traveled within the storm system and assumedly discharged to Ross Creek at Little Braham Lane, approximately 2.2 miles downstream of the appearance point. Pictures of the spill boundary on land are uploaded as attachments. In addition to the pictures, a map of the spill boundary on land was uploaded as an attachment as well.	Y	The spill had already reached a nearby storm drain inlet upon arrival. The inlet at the SE intersection of Kinghurst Dr and Lost Oaks Dr is approximately 49 ft North 240 ft from the spill appearance point. This storm drain inlet is connected to the same storm drain sewer system which flows West along Lost Oaks Dr. The sewage traveled within the storm system to a storm outfall discharge point where Ross Creek intersects Little Braham Lane. The responding Crew observed existing water flow in the storm drain conveyance system. This existing water in storm drain line mixed with the spill (sewage) and was diluted with the water in the storm drain system. Pictures of the spill entering and within the storm drain conveyance system are uploaded as attachments. In addition to the pictures, a map of the spill path within the storm drain conveyance system is also included. 	775	199	The spill reached Ross Creek while discharging from storm system outfall. The location of the outfall along the Ross Creek is near (4810 Little Branham Ln) located within a box culvert at 37.250257709539305, -121.91172924851952. Pictures of the storm drain outfall and health warning signs are included in the attachments. 	299	821	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		The spill (sewage) traveled along the street curb and gutter from the manhole to the intersection of Kinghurst Dr and Lost Oaks Dr (spill appearance point). The manhole is identified in 1.d. and 1.e. The spill reached and traveled along the curb and gutter, then entered City's storm inlet and drainage system. The location of the storm drain inlet is identified in 1.f and 1.g.  Coordinates for the containment in the storm system are identified in 1.h and 1.i. The spill reached the nearby Ross Creek outfall at Little Braham Lane. The storm outfall discharge point is identified in 1.j and 1.k. 	Y	37.249559374682	-121.948562729064	37.25012	-121.94852	37.25063	-121.9347	37.250257709539	-121.91172924852	05/22/2024 21:22	The total SSO spill volume was estimated by using the approximate flow rate duration method. An assumed spill start time was estimated by gathering information from the reporting party.  Crew measures area of water on street surface and curb and gutter.   Spill all land was fully recovered volume.  Volume in MS4 was estimated from the first entry inlet to about 0.8 miles downstream where crew set up spill recovering point.  Further downstream water depth would make it infeasible for recovering effort.  The water depth was assumed as in the volume estimation.  And ratio of water to sewage was assumed to be 50/50. 	The reporting party first noticed the spill on 5/22/2024 at 20:30. At that time, the reporting party stated that the spill had only traveled approximately 240 ft from the appearance point and had already reached the nearby storm drain inlet. In addition, the reporting party last noticed the area  dry  at 18:30 on 5/22/2024. Based on the reporting party's information, it was assumed that the SSO likely started sometime before the reporting party noticed and after it was last dry. The start time of the SSO is assumed to have started around 19:30 on 5/22/2024.	Root Intrusion		Gravity Mainline		Vitrified Clay		65	The spill required cleanup of the street, curb and gutter along Kinghurst Dr in San Jose. In addition, cleanup was required within the storm drain conveyance system. It was assumed that some raw sewage reached Ross Creek. Based on the responding Crew's visual observations, there was no adverse impact to the environment or wildlife at the time of the spill. The City of San Jose Environment Department conducted a creek walk to assess the impact to the waterway on 5/23/2024. The result of the creek walk also showed no impact to the creek or wildlife.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Upon arrival, the responding City Crew immediately placed sandbags around the nearby storm drain inlet where the spill had entered. The Crew tracked the spill in the storm drain conveyance system (MS4) and placed sandbags in a manhole where they could contain the spill. Given the water depth, crew assumed that water had reached the surface water. Crew attempted and clear the blockage.  Crew began their cleanup efforts on street and curb/gutter. Crew used two combo trucks, one flushed water upstream and other vacuumed the water at the downstream SDMH.  With the duration and the present of water in SD line, crew assumed that some water had reached the waterway. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Added problem sanitary gravity main to a chemical root control program.	The City has planned the following corrective actions for this sanitary sewer overflow: 1. Adjust the plugged pipe segment operation and maintenance cleaning frequency from 8 years to 2 years. 2. Re-video the plugged sanitary pipe segment along with the upstream and downstream segments in 1 month prior to cleaning. 3. Add sanitary gravity mains 452, 458, and 451 to the annual Root Control Project 4. Review Standard Operating Procedures for sanitary sewer line cleaning with Maintenance Crews.	The City has planned the following corrective actions for this sanitary sewer overflow: 1. Adjust the plugged pipe segment operation and maintenance cleaning frequency from 8 years to 2 years. - Completed on 6/5/2024. 2. Re-video the plugged sanitary pipe segment along with the upstream and downstream segments in 1 month prior to cleaning. - Scheduled for   July 2024. 3. Add sanitary gravity mains 452, 458, and 451 to the annual Root Control Project - Completed on 6/5/2024. 4. Review Standard Operating Procedures for sanitary sewer line cleaning with Maintenance Crews. - Scheduled for July 2024.	05/23/2024 01:00	While the Responding Crew cleared the blockage in the plugged sanitary mainline, the Crew documented their findings. A pipe basket was used to collect roots and other debris. After conducting a follow up CCTV of the sanitary mainline pipe, there was evidence of root intrusion that were present in the mainline pipe where the blockage was located. Other than that, there were no other major O&M observations or structural defects that may have contributed to the blockage. Therefore, it was determined that the cause of the blockage and spill was root intrusion.	N		06/05/2024 17:00	Ross Creek	Stream/Creek		Ruby Creek is a 5-mile-long northeast-flowing stream currently originating just north of Blossom Hill Park in southeast Los Gatos, California. It is tributary to Guadalupe River, whose waters flow to the south end of the San Francisco Bay. Ross Creek is not intended for recreational usage or drinking water.	Crew observed no adverse impact to the environment or wildlife observed. A member of the responding Crew conducted a ammonia test of the water in Ross Creek downstream of the outfall. The ammonia test strip resulted in a negative (0ppm) reading. The following Thursday, 5/23/2024, an inspector from the City of San Jose Environmental Services Department conducted a follow up storm drain outfall inspection. There was no adverse impact to the environment or wildlife observed during the follow up inspection.	Other (specify below)	No public access impact - Ross Creek is not intended for recreational usage.	Santa Clara Valley Water District	0	N	N												
8	8SSO10602	Active	Santa Ana City CS	Santa Ana City	895048	1.2	Certified	Armando Fernandez	Principal Civil Engineer		13-JUN-24	13-JUN-24	Monthly Category 3 Spill	2029 W Meriday Ln, MH# F06-052	05/20/2024 12:30	05/20/2024 12:40	05/20/2024 10:00				Spill originated at manhole F06-052. Per conversation with resident, sewer surged out of manhole (F06-052). Upon staff arrival, sewer was no longer discharging.	33.74547	-117.86765	Gravity Mainline; Manhole			68	Spill originated at manhole F06-052. The spill was contained along the gutter between 2034 W. Meriday Lane and 2029 W. Meriday Lane.	N						68	Paved Surface; Street/Curb and Gutter (2 3)		The spill was contained within the gutter between 2034 W. Meriday Lane and 2029 W. Meriday Lane.	Y	33.75731	-117.8982	33.75748	-117.89812					05/20/2024 10:15	Area/volume of ponded sewage method was used. We calculated the volume by taking the length of the spill and multiplied it by the cross-section of the gutter and then converted to gallons.	Based on the spill volume and the time we received the call, we estimate the surge of sewer spill lasted 15 minutes. A resident confirmed seeing sewer at 10:00 am.	Debris-wipes/Non-disposables		Gravity Mainline; Manhole		Vitrified Clay		73	We were able to recover all of the spill, therefore there was no impact.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Vacuumed ponded sewage and cleaned up remaining spill.	Inspected Sewer Using CCTV to Determine Cause		Inspected sewer using CCTV.		05/20/2024 13:00	CCTV inspection showed accumulation of non-disposable wipes. Staff removed blockage by jetting the sewer line.		N/A	05/20/2024 13:00														N/A	N/A	N/A	We do not have any rehabilitation or replacement plan at this time.	Inspected sewer using CCTV.	No capital improvements are identified for this sewer main at this time.	N/A	N/A	N/A	
8	8SSO10561	Active	San Bernardino City CS	San Bernardino City Municipal Water Dept	895053	1.1	Certified	Juan	Superintendent		28-MAY-24	28-MAY-24	Monthly Category 3 Spill	2613 West 2nd St - Coss St. - North Meridian Ave 	05/24/2024 09:36	05/24/2024 09:47	05/24/2024 09:15				It is anticipated that 935 gallons of sewage were released from the 4  private sewer lateral at the above address (Latitude: 34.10186 Longitude: 117.34738). The partial obstructed sewer line did not cause any flow from SBMWD's upstream maintenance holes. The spill was caused by a surcharged maintenance hole and pipe segment. The Sewer Collections Supervisor began the field investigation by speaking with the Foothill Villas Apartments Maintenance Worker (Jose) about the approximate time the spill occurred. The Collections Supervisor also met with a resident (Susan Mendoza), who was out walking her dog. 	34.10186	117.34738	Gravity Mainline; Manhole	N/A	None	935	It is anticipated that 935 gallons of sewage were released from the 4  private sewer lateral at the above address (Latitude: 34.10186 Longitude: 117.34738). The partial obstructed sewer line did not cause any flow from SBMWD's upstream maintenance holes. The spill was caused by a surcharged maintenance hole and pipe segment. T	N	N/A					842	Paved Surface; Unpaved Surface		It is anticipated that 935 gallons of sewage were released from the 4  private sewer lateral at the above address (Latitude: 34.10186 Longitude: 117.34738). The partially obstructed sewer line did not cause any flow from SBMWD's upstream maintenance holes. The spill was caused by a surcharged maintenance hole and pipe segment. 	Y	34.10186	117.34738							05/24/2024 10:40	Spill was calculated utilizing LxWxD and implementing length of time of spill.  Also utilized industry-accepted charts showing spill volumes from manhole.  	Spill was calculated utilizing LxWxD and implementing length of time of spill.  Also utilized industry-accepted charts showing spill volumes from manhole.  	Debris-General; Fats, Oil and Grease (FOG)		Manhole		Concrete; Vitrified Clay		25	Spill onto unpaved and paved surfaces. No negative impact to public or environment.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		The Sewer Collections Supervisor arrived at the scene around 10:00 a.m., followed by additional collection crew at 10:20 a.m. The sewer main was cleared around 10:40 a.m. utilizing a chisel nozzle and a high-pressure jetting hose.  The Sewer Collections Supervisor began the field investigation by speaking with the Foothill Villas Apartments Maintenance Worker (Jose) about the approximate time the spill occurred.  The Collections Supervisor also met with a resident (Susan Mendoza), who was out walking her dog.  All necessary notices were issued on Friday, May 24, 2024, and Saturday, May 25, 2024. RWQCB (Julio Lara) and SBCEH received an email on Saturday, May 25, 2024.  	Added Sewer to Preventive Maintenance Program; Enforcement action against Fats, Oil, and Grease (FOG) source; Other (specify below)	Will CCTv to verify cause	Will CCTV to obtain more data and add to Pm program if needed. 		05/24/2024 13:36	The sewer main between Maintenance Hole #0720218 and M/H #0720219 was partially blocked with grease, and a foreign object that possibly may have been driven through the pick hole on the downstream maintenance hole, causing the sewer main to surcharge and the private lateral to spill. The team completed all necessary cleanup and disinfection of the impacted area. 		CCTV	05/30/2024 15:36														None at this time. 	WIll determine after CCTV	If needed	If needed. Pending CCTV	if needed	If needed	N/A	All response activities were performed satisfactory. 	CCTV	
2	2SSO10115	Active	South San Francisco City CS	South San Francisco City	895054	1.1	Certified	David A. Bockhaus	Public Works Deputy Director		28-MAY-24	28-MAY-24	Monthly Category 3 Spill	326 Arroyo	04/10/2024 09:21	04/10/2024 09:34	04/10/2024 07:13				The spill originated from a sanitary sewer manhole located in front of 326 Arroyo.	37.65043	-122.44583	Manhole			155	The spill originated at a sanitary sewer manhole located in front of 326 Arroyo and traveled towards the intersection of Arroyo @ Lomitas. From there, it traveled in the curb/gutter down Lomitas towards Cuesta where it was contained in front of 129 Lomitas.	N						155	Paved Surface; Street/Curb and Gutter (2 3)		The spill was contained in the curb/gutter in front of 129 Lomitas.	Y	37.65229	-122.44696							04/10/2024 09:48	The volume of this spill was estimated by breaking the spill area into sections and then finding the cubic area of each section. Once the cubic area was calculated for each section, the cubic feet was multiplied by 7.48.	To determine the start time of the spill, we first determined the estimated total volume. From there, we took a photo of the overflowing manhole that staff took upon arrival which had a spout coming from the side of the manhole 1/4  and utilized the chart for the Duration and flow rate with the manhole cover in place from the DKF Solutions Sewer Overflow Volume Estimation Workbook which gave us a flow rate of 1GPM. From there, we took the total estimated gallons spilled of 155 and divided it by 1GPM to give us an estimated active run time of 155 minutes. We then subtracted 155 minutes from the spill end time (time the plug was relieved) of 9:48AM to get an estimated start time of 7:13AM.	Debris-wipes/Non-disposables; Root Intrusion		Gravity Mainline		Vitrified Clay		84	The spill reached the paved roadway and traveled down the concrete curb/gutter before it was contained before a nearby catch basin with a sandbag.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		All affected areas were cleaned and sanitized with hospital grade bachfighter from United Laboratories, scrubbed with a broom, washed down with water and captured with our Vac truck.	Adjusted Schedule/Method of Preventive Maintenance		A CCTV inspection was performed on the sewer main to help identify the cause of the spill. Roots and rags were noted so the line segment will be moved from a yearly maintenance schedule to a 6 month schedule.		04/10/2024 10:55	CCTV inspection showed roots and rags.		n/a	04/10/2024 15:50														n/a	n/a	Moved from yearly to 6 month.	n/a	n/a	n/a	n/a	n/a	n/a	
1	1SSO11454	Active	Ukiah Valley Sanitation District CS	Ukiah City	895062	1.2	Certified	Nick Kirby	Supervisor	29-MAY-24	29-MAY-24	29-MAY-24	Category 2 Spill	Mendocino forest products	05/28/2024 09:15	05/28/2024 09:30	05/28/2024 04:00		-		The spill originated from the coordinates in 7a,7b, but spread to these coordinates (39.18827, -1213.20448) (39.18767, -1232.20448)	39.18782	-123.20447	Gravity Mainline; Manhole		Spill was in field largely contained, approximately 98 percent was recovered to sewer system no impact to water ways. Cal OES notification was not needed in this situation.	44880	See attachments	N						44000	Unpaved Surface		Field North of Saw Mill	Y	39.18789	-123.20447							05/28/2024 10:00	Square footage of coverage area to gallons	Start time of spill approximated by past experience with flow rate through manhole as well as estimated volume of spill to calculate resulting start time. (44000 gallons/6hrs)/60=122 gallons this is the approximate flow rate through the manhole during the day without consideration for nighttime flow rates changes.	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		72	None, majority of spill reinduced to through manhole after blockage removed. Vacuum trucks onsite to remove left over debris. 	N	Restored Flow; Returned All Spill to Sanitary Sewer System		Majority of spill reinduced to through manhole after blockage removed. Vacuum trucks onsite to remove left over debris. 	Adjusted Schedule/Method of Preventive Maintenance		This site was on a yearly preventative maintenance plan previously. This location will be jetted and rodded quarterly moving forward. Additionally foaming and root cutting activities will take place within Q3 of 2024. 	2024 Q3 Roding sewer lines and jetting, foaming and root cutting Q4 Roding sewer lines and jetting  2025 Q1 Roding sewer lines and jetting Q2 Roding sewer lines and jetting Q3 Roding sewer lines and jetting, foaming and root cutting Q4 Roding sewer lines and jetting...........	05/28/2024 10:00	Roots and grease caused blockage.	N												N													
5S	5SSO11054	Active	South Placer Mud CS	South Placer MUD	895066	1.2	Certified	Eric Nielsen	Superintendent	29-MAY-24	29-MAY-24	29-MAY-24	Category 1 Spill	4764 Racetrack Cir_Rocklin	05/18/2024 19:15	05/18/2024 19:57	05/18/2024 10:00		-		See Attached Spill Summary	38.79272	-121.2273	Lateral Clean Out (Public)			77	See Attached Spill Summary	Y	See Attached Spill Summary	1	76	See Attached Spill Summary	76	1	Drainage Conveyance System that discharges to surface water; Paved Surface; Surface Water		See attached Spill Event Summary.	Y	38.792105	-121.2242							05/18/2024 19:59	See attached Spill Event Summary.	See attached Spill Event Summary.	Debris from Lateral; Debris-wipes/Non-disposables	See attached Spill Event Summary.	Lower Lateral	See attached Spill Event Summary.	Cast Iron		48	See attached Spill Event Summary.	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	See attached Spill Event Summary.	See attached Spill Event Summary.	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	See attached Spill Event Summary.	See attached Spill Event Summary.	See attached Spill Event Summary.	05/18/2024 21:20	See attached Spill Event Summary.	N			Sucker Ravine	Stream/Creek		Small stream/creek.	No impacts observed.	Other (specify below)	Public access was not impacted.  The public does not access this creek.	N/A	0	N	N												
5S	5SSO10923	Active	Deer Creek CS	El Dorado Irrigation District	895072	1.1	Certified	John Chavers	Collection System Supervisor		29-MAY-24	29-MAY-24	Monthly Category 3 Spill	DC-2024-04-02	04/30/2024 18:13	04/30/2024 19:08	04/26/2024 12:00				See Attachment	38.69106	-120.99115	Lateral Clean Out (Public)			116	See attachments	N						116	Paved Surface		80 feet in length on paved surface from point of origin	N									04/30/2024 18:14	See calculations and drawings in attachments	Witness statements and time of cleared blockage	Pipe Structural Problem/Failure - Installation		Lower Lateral		Concrete		44	None. See attachment	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Vacuum and flush. Clear line and CCTV inspect	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		Preventative Maintenance to include flushing and inspection until repairs are made. Repairs completed 05/20/2024		04/30/2024 20:54	See attachments		Investigation and CCTV completed 4/30/24	04/30/2024 18:54														NA	Repair offset joint. Work order 1168340 Completed 05/20/2024.	Cancelled. Repair completed.	Repair offset joint	Cleared, cleaned, and inspected work order for construction crew repair pending. Repair completed 05/20/2024	Field crew repair	Work Order 1168340 included in District Report	See attachment and photos	Investigation and CCTV completed 4/30/24	
5F	5SSO11297	Active	Fresno Co 41-Shaver Lake CS	County of Fresno	895081	1.1	Certified	Eva Frias	Program Technician		30-MAY-24	30-MAY-24	Monthly Category 3 Spill	40809 Mill Run Lane, Shaver Lake, Ca 93664	05/25/2024 19:50	05/25/2024 21:30	05/25/2024 19:50				Restricted line clogged in lateral. Manhole was backed up. Unknown responsible party.	37.0892	-119.31451	Manhole			75	Spill restricted to dirt and small part of street. 	N						0	Paved Surface; Unpaved Surface		Roadway and side of road.	Y	37.0892	-119.31451							05/26/2024 11:41	Visual estimate.	Field staff assessment.	Debris from Lateral		Manhole		Concrete		49	Small runoff absorbed by ground.	N	Contained All or Portion of Spill		Contractor cleared restriction. Spillage was minimal and was absorbed by ground.	Other (specify below)	Scheduling regular maintenance.	Scheduling regular maintenance.		05/26/2024 12:00	Restricted line clogged in lateral. Manhole was backed up. Unknown responsible party.		None	05/26/2024 12:00														N/A	N/A	N.A	N/A	N/A	N/A	N/A	N/A	None	
5S	5SSO11001	Active	Modesto CS	Modesto City	895084	1.2	Certified	Robert Englent	Wastewater Collection System Superintendent	04-JUN-24	13-JUN-24	13-JUN-24	Category 1 Spill	1337 Claus Rd.	05/30/2024 07:49	05/30/2024 08:08	05/30/2024 07:25	05/30/2024 09:39	24-3107	13-JUN-24	Sewer spilled from TMHSS009568 in the street in front of 1337 Claus Rd. 	37.66341	-120.92144	Manhole			54	Sewer spilled from TMHSS009568 into the gutter on the West side of Claus Rd. The sewer travelled North for 32 ft. and South 178 ft. to SDCB000575.	Y	Sewer spilled into the gutter and ran South for 178' to positive storm drain catch basin SD000575 to an 18  cross pipe that drops into a 42  RCP storm line. The 42  storm line turns into a 48  RCP line at 980'. The 48  line turns into a 54  line after another 885'. The 54  line runs another 235' to the outfall.	24	30	Outfall SD021114 discharges into Dry Creek from the North East side of the Claus Rd. bridge over Dry Creek.	30	24	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water		Sewer spilled from TMHSS009568 into the gutter on the West side of Claus Rd. The sewer travelled North for 32ft. and South for 178ft. to SDCB000575. The sewer then travelled through the storm line 2100ft. to storm outfall SD021114 at the North East side of the Claus Rd. bridge at Dry Creek.	Y	37.6635	-120.92145	37.66291	-120.92144	37.65722	-120.92097			05/30/2024 08:19	See attachments Illicit Discharge Report and ECS Spill Volume Calculations	See attachments Illicit Discharge Report and ECS Spill Volume Calculations	Debris from Lateral; Debris-wipes/Non-disposables		Gravity Mainline		Cast Iron	First 20 ft. of the line is cast iron pipe. The rest of the line is VCP. 	40	See ECS Illicit Discharge Report	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Kris Lewis arrived on-scene at 08:08 in a vacuum truck and contained the spill with sandbags and a rubber mat. He ran line segment SS002205 and broke the stoppage at 08:19. We had a second truck set-up near the outfall and start vacuuming at 08:30. Kris then washed and vacuumed 210 ft. of curb and gutter, cleaned the catch basin and cross pipe and then cleaned and vacuumed the storm lines all the way to the outfall.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Give residents at 1337 Claus Rd. WEF informational brochure about not flushing wipes down the toilet. 	The PM schedule will be moved from 3 years to 6 months to prevent wipes from forming a stoppage.  A chain flail will be used to remove scaling in the cast iron section of the line.  Give residents at 1337 Claus Rd. WEF informational brochure about not flushing wipes down the toilet.  See Attachment  SSS Review Worksheet.	N/A	05/30/2024 11:45	When the cleaning crew broke the stoppage, a large amount of wipes came out of the line. The CCTV crew noted that the first 20 ft. of the line is cast iron pipe. The rest of the line is VCP. 	N			Dry Creek (Tuolumne River tributary)	Stream/Creek		Dry Creek is a stream in Stanislaus County, California, that is a tributary to the Tuolumne River.	None	Other (specify below)	No impact.	N/A	0	N	N	Only field readings were taken upstream, downstream, and near the outfall. See Attachment: Illicit Discharge report for GIS locations. 	Field tests for DO, Ph, temp. and conductivity. 										
8	8SSO10641	Active	Yorba Linda Water District CS	Yorba Linda Water District	895086	1.4	Certified	Jeff McDonald	Maintenance Superintendent	30-MAY-24	16-SEP-24	16-SEP-24	Category 1 Spill	4511 Ohio St, Yorba Linda CA	05/30/2024 08:30	05/30/2024 08:40	05/30/2024 08:10	05/30/2024 10:10	24-3111		4  VCP customer's cleanout at 4511 Ohio St	33.89594	-117.8029	Lateral Clean Out (Private)	N/A	N/A	5500	Spill flowed into above ground V-Ditch, then entered underground storm drain.	Y	V-Ditch transition to underground storm drain via a small catch basin at base of V-Ditch.	1000	4500	Private 4  VCP cleanout - above ground V-Ditch - small catch basin - underground storm drain	4500	1000	Drainage Conveyance System		4  VCP customer's cleanout at 4511 Ohio St	Y	33.89594	-117.8029							05/30/2024 09:10	Visual confirmation of 90 GPM for one hour	Customer estimate of start time and field crew estimate for end time	Debris-wipes/Non-disposables; Other (specify below)	pool plaster	Gravity Mainline		Vitrified Clay		46	4500 gallons lost to the Santa Ana River	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Containment at catch basin and recovery by vacuum truck	Adjusted Schedule/Method of Preventive Maintenance; Post Spill CCTV		Added area to quarterly preventative maintenance cleaning	Every three months	05/30/2024 10:10	CCTV 8  VCP Recovered pool plaster and wipes from manhole	N			Santa Ana River	River		Santa Ana River is part of the storm run-off system	none	Restricted Public Access		N/A	0	N	N												
2	2SSO10212	Active	Vallejo Sfcd CS	Vallejo Flood & Wastewater District (formerly Vallejo San & Flood Control District)	895088	1.1	Certified	Justin Keating	Director of Field Operations		30-MAY-24	30-MAY-24	Monthly Category 3 Spill	252 Sonora Pass Rd	04/10/2024 21:01	04/10/2024 21:16	04/10/2024 20:48				Spill originated from manhole located in the street. 	38.14148	-122.25863	Manhole			89	Street, curb, and gutter, storm drain catch basin	Y	See attached photo	89				89	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Street, curb, and gutter, storm drain catch basin	Y	38.14151	-122.25891							04/10/2024 21:52	Operator used a measured volume method to calculate the spill based on measurements of spill in street, curb, gutter, storm drain catch basin.	Measured volume: L x W x  D 	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		47	Street, curb, and gutter, storm drain catch basin	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Plugged storm drain, cleared blockage, washed down street, vacuum cleaned storm drain pipe and catch basin.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Plan Rehabilitation or Replacement of Sewer	Mailed FOG information to residents in neighborhood.	Completed: Adjusted mainline cleaning schedule, CCTV inspection, mailed FOG information to residents in neighborhood,  Next 30 Days: Mainline spot repair to eliminate sag in mainline that allows FOG to accumulate		04/10/2024 23:40	CCTV inspection found large full pipe sag in mainline that allows FOG and rags to accumulate.		None	04/11/2024 16:30														NA	Adjustment of mainline cleaning schedule	Increased cleaning frequency from 4 to 3 month schedule	Mainline spot repair to eliminate sag in mainline that allows FOG to accumulate in next 30 days	CCTV inspection	NA	See attached	NA	None	
2	2SSO10217	Active	West Valley Sd CS	West Valley SD	895090	1.4	Certified	Kelvin Hatchett	Operations Supervisor	30-MAY-24	11-JUN-24	11-JUN-24	Category 2 Spill	 Oak Hollow Dr /Saratoga	05/27/2024 11:43	05/27/2024 12:55	05/27/2024 10:29	05/27/2024 14:29	24-3034		Latitude: 37.26584   longitude: -122.02581	37.26584	-122.02581	Manhole	 	There were two Spill appearance points manhole 5-063-24 which was located 2 section upstream from the failure point captured in photos of area (A).  Manhole 5-062-23 was also seeping periodically during the incident captured in photos of area (B).  	1520	(See attachments) Spill was first categorized as a Cat.(1) due to incorrect reading of the map. It was thought that the catch basin was connected directly to a outfall. This was incorrect it was connected to a manhole which the downstream pipe was block with debris and not flowing.     	Y	Spill entry was in a catch basin that was connected to a manhole which had a blocked storm pipe down stream that was connected to an outfall (see attached pictures)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      	1520	0			1520	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Contained within a drainage conveyance system on Oak Hollow rd.	Y	37.26542	-122.02622	37.26586	-122.02583	37.26561	-122.02602			05/27/2024 13:40	Method 1Calculated spill rate x spill Duration time Method 2 Calculated Volume of All trapped spill waters.	Start time was based on resident seeing spill and no spill times. End of spill was determined by crews relief of blockage and documented time of no spill from manholes. 	Root Intrusion		Manhole		Other (specify below); Polyvinyl Chloride (PVC)	Manhole root intrusion through bench	38	Impact to roadway and traffic. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Crew immediately created a berm from surrounding dirt. Vacuumed entirety of spill, washed down street and gutters while vacuuming effected catch basin and connected storm pipe. Downstream storm drain pipe completely blocked with debris containing spill within drainage system.  	Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Repaired Facilities or Replaced Defect	Roots were removed from manhole. Manhole placed on repair list channel clear at this time. 	Manhole placed on rehabilitation repair list. Repairs well be done within 180 days. Manhole is placed on an increased inspection frequency list.	Repair manhole with in 180 days.	05/28/2024 17:26	Spill was caused by root intrusion in manhole bench this caused the outgoing channel to be blocked.  	N												N													
5F	5SSO10737	Active	Kern Sanitation Authority CS	Kern County Public Works Department	895094	1.1	Certified	jesus uribe	Wastewater Specialist		03-JUN-24	03-JUN-24	Monthly Category 3 Spill	manhole #518	05/30/2024 08:00	05/30/2024 08:20	05/30/2024 06:00				spill point was at manhole # 518 on the corner of south M St and south Chester Ave.  and in a n apartment complex courtyard 	35.33363	-119.01526	Lower Lateral (Public); Manhole		broken clean out in court yard of apartment complex 	780	traveled down street curb maintained a 2 foot wide stream other appearance point was a 15x20 ft grass area  	N						500	Paved Surface; Unpaved Surface		Street curb maintained a 2 foot wide stream other appearance point was a 15x20 ft grass area.	Y	35.33529	-119.01621	35.33321	-119.01608					05/30/2024 09:00	measured area in where wastewater was flowing and then measured area of second appearance point.	first area was 500ft X 2ft wide X .08 height X 7.48 = 600gal second area was 15ft X 20ft X .08 X 7.48= 180gal	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		30	spilled down street curb and in a grass area in apartment complex 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		cleaned sewer line, vacuumed wastewater, disinfected areas affected.	Adjusted Schedule/Method of Preventive Maintenance; Plan Rehabilitation or Replacement of Sewer		scheduled line to be cleaned once a month until line is repaired/ upsized.		05/30/2024 09:30	Line is 6 inch diameter, too small for number of apartments attached to it. heavy grease is persistent. Line replacement project in underway will be upsized to 8 inch diameter. 		NA	05/30/2024 09:45														NA	scheduled line to be cleaned once a month until line is repaired/ upsized.	 to be cleaned once a month until line is repaired.	Line replacement underway.	NA	NA	NA	NA	NA	
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	895102	1.3	Amended	Daniel Whitlock	Manager	31-MAY-24	11-JUN-24	11-JUN-24	Category 2 Spill	1840 Castro St.	05/29/2024 12:18	05/29/2024 12:45	05/29/2024 11:30		-		Spill appeared out of manhole N-22569 and at the home of 1840 Castro St. Asset P-97411 (main sewer pipe) was blocked and caused a backup up into L-262285 and into garage of 1840 Castro St. 	37.7466989	-122.4339181	Lateral Clean Out (Private); Manhole; Upper Lateral (Private)			1593	Blocked main sewer P-97411 and exited through manhole N-22569 along with upper lateral at 1840 Castro St. (L-262285) Spill also appeared in garage of 1840 Castro St.	N						1593	Other (specify below); Paved Surface; Street/Curb and Gutter (2 3)	Combined storm drain and concrete garage.	Spill ended up in garage of 1840 Castro as well as the street.	Y	37.7466989	-122.4339181							05/29/2024 11:31	Duration of flow from manhole. Eyeball and witness approximates spill lasted for 5 minutes.  (175 x 5) = 875 gallons  Spill measured in garage: 15' x 8' x 1  x 7.48 x.8 = 718.08 gallons  718 gallons + 875 gallons = 1593 gallons total	Flow duration measured as 175 gallons per minutes	Debris from Construction		Gravity Mainline		Other (specify below)	ISP	84	Overflow on Castro and Cesar Chavez St. Spill impacted garage at 1840 Castro St.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow	Returned all spill to combined system.	Disinfected and washed down garage and street. Returned all spill to the combined system.	Inspected Sewer Using CCTV to Determine Cause		WO 8412856 scheduled to CCTV asset P-97411 for 6/11/2024.	Spill Starts at 11:30 am on 5/29/2024 Spill ends at 11:31 am on 5/29/2024 Cleanup starts on 13:45 on 5/29/2024 Cleanup complete at 13:07 on 5/29/2024 CCTV for asset P-97411 scheduled for 6/11/2024	05/29/2024 15:07	Construction debris blocked main sewer asset P-97411 which caused spill to come out onto the street via manhole and up through L-262285 into resident's garage.	N												N													
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	895112	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	03-JUN-24	07-JUN-24	07-JUN-24	Category 1 Spill	311 Oak Street, Oakland Ca	05/31/2024 13:02	05/31/2024 13:30	05/31/2024 15:52		-		Manhole overflowing in the street, the sewage from the manhole was flowing from the street to the nearest storm drains at the gutter area. The sewage inside the building/structure overflowed from a floor drain, it flooded the ground floor level parking garage and the basement.	37.79406	-122.268	Inside Building or Structure; Manhole			655	Manhole overflowing in the street, the sewage from the manhole was flowing from the street to the nearest storm drains at the gutter area. The sewage inside the building/structure overflowed from a floor drain, it flooded the ground floor level parking garage and the basement.	Y	30  storm line called 14th Avenue and San Antonio creek	0	205	30  storm line called 14th Avenue and San Antonio creek	205	436	Building or Structure; Surface Water		Manhole overflowing in the street, the sewage from the manhole was flowing from the street to the nearest storm drains at the gutter area. The sewage inside the building/structure overflowed from a floor drain, it flooded the ground floor level parking garage and the basement.	Y	37.79406	-122.268							05/31/2024 15:52	 Building Ground Floor Parking Garage measurements:  L 10' x 6' W .02' x 7.48 = 5 gal 18' L x 6' x 0.1' x 7.48 = 8 gal 9' L x 9 W x .02' x 7.48 = 12 gal 27' L x 9' W x .02' x 7.48 = 38 gal 24' L x 21' W x .02 x 7.48 = 75 gal  L 21' x 18' W x .02' x 7.48 = 57 gal Triangle:  L 21' x 18' W x .01 x 7.48 Divided by 2 = 14 L 21' x 4' W x .02' x 7.48 = 13 gal 12' x 12' W x .02' x 7.48 = 22 gal 18'L x 4' W x .08' x 7.48 = 43 gal 12' L x 4' W x .02 x 7.48 = 7 gal 30'L x 8' W x .02 x 7.48 = 36 gal 24' L x 18' W x .01 x 7.48 = 32 gal 18' L x 3' W x .01 x 7.48 = 4 gal 5+8+12+38+75+57+14+13+22+43+7+36+32+4= 373-gal total   Building Basement: 12' L x 9' W x .02 x 7.48 = 16 12' L x 1' W x .02 x 7.48 = 2 gal 8' L x 6' W x .02 x 7.48 = 7 gal 6' L x 3' W x .02 x 7.48 = 3 gal 132' L x 3' W x .01 x 7.48 = 30 gal 21' L x 3' W x .02 x 7.48 = 9 gal 18' L x 1' W x .02 x 7.48 = 3 gal 16+2+7+3+30+9+3= 70 gal in basement  Manhole: 218 min x.94 GPM = 205 gal  Total spill: 373 + 70 + 205 = 648 gallons 	Start time was based on eyewitness account. End time was based on responding sewer crew restoring the flow.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		125	Manhole overflowing in the street, the sewage from the manhole was flowing from the street to the nearest storm drains at the gutter area. The sewage inside the building/structure overflowed from a floor drain, it flooded the ground floor level parking garage and the basement.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Advance restoration company responded and was recovering the spill inside the building, they did the clean-up and mitigation effects of the spill. Responding sewer crew did the clean-up and wash down of the spill area in the street/gutter areas.	Advance restoration company responded and was recovering the spill inside the building, they did the clean-up and mitigation effects of the spill. Responding sewer crew did the clean-up and wash down of the spill area in the street/gutter areas.	Adjusted Schedule/Method of Preventive Maintenance		Adjusted to 3-month hydro high frequency maintenance program. WO. #1511933.	Adjusted to 3-month hydro high frequency maintenance program. WO. #1511933.	05/31/2024 20:30	CCTV inspection W.O. #1530133 found the mainline in good condition, with grease deposition (FOG) to had been the potential cause of the overflow.	N			14th Avenue, San Antonio creek to Estuary.	Estuary		Underground 36  storm line named 14th Avenue, San Antonio creek that flows to Estuary.	None	Other (specify below)	None	N/A	0	Y	N												
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	895118	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		05-JUN-24	05-JUN-24	Category 2 Spill	369 East 1st Street	06/01/2024 17:31	06/01/2024 17:35	06/01/2024 17:31	06/02/2024 02:26	24-3161		The initial crew arrived at 9:35 P.M. and discovered an 10-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.049459	-118.239248	Inside Building or Structure	None		23512	None taken	N		0	0			23512	Building or Structure		On Saturday, June 1, 2024 at 9:31 PM, LA Sanitation and Environment�s (LASAN) Clean Water Conveyance Division (CWCD) received a report of a sewage leak at 369 East 1st Street (TG 634-G4). A CWCD crew arrived at the incident location and determined that the 10-inch main line sewer serving the referenced area was spilling due to a blockage, which was attributed to Fats, Oil, and Grease (FOG) accumulation. The crew proceeded to remove the blockage and the backup ceased at 10:45 PM; all necessary clean-up was then performed.  Latitude: 34.049459   Longitude: -118.239248	Y	34.049459	-118.239248							06/01/2024 22:45	Volume of a spill contained in a rectangular area Length125feet Width28feet Depth8inches0.6667feet  2333.33ft317,453gallons  Volume of a spill contained in a rectangular area Length9feet Width9feet Depth120inches10.0000feet  810.00ft36,059gallons 	Volume of a spill contained in a rectangular area	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		117	On Saturday, June 1, 2024 at 9:31 PM, the Clean Water Conveyance Division (CWCD) received a report of sewage leak at 369 East 1st Street (TG 634-G4). A CWCD crew was immediately dispatched to the incident location and determined that the 10-inch main line sewer serving the referenced area had backed up due to a blockage. The cause of the blockage in the sewer line was grease. The crew removed the blockage and the backup ceased at 10:45 PM; all necessary clean-up was then performed.  It was estimated that approximately 23,512 gallons of sewage backed out of the sewer as a result of the blockage. The crews were able to establish containment and captured 23,512 gallons of sewage, returning it to the sewer system.  	N	Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		On Saturday, June 1, 2024 at 9:31 PM, the Clean Water Conveyance Division (CWCD) received a report of sewage leak at 369 East 1st Street (TG 634-G4). A CWCD crew was immediately dispatched to the incident location and determined that the 10-inch main line sewer serving the referenced area had backed up due to a blockage. The cause of the blockage in the sewer line was grease. The crew removed the blockage and the backup ceased at 10:45 PM; all necessary clean-up was then performed.	Adjusted Schedule/Method of Preventive Maintenance		The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	06/01/2024 22:45	A CWCD crew arrived at the incident location and determined that the 10-inch main line sewer serving the referenced area was spilling due to a blockage, which was attributed to Fats, Oil, and Grease (FOG) accumulation. The crew proceeded to remove the blockage and the backup ceased at 10:45 PM; all necessary clean-up was then performed.	N	None.	06/01/2024 22:45										N												None.	
6A	6SSO11118	Active	Tahoe City Public Utility Dist CS	Tahoe City PUD	895119	1.1	Certified	Dan Lewis	Utilities Superintendent		03-JUN-24	03-JUN-24	Monthly Category 3 Spill	6393 Chambers Lodge Rd	05/23/2024 11:50	05/23/2024 12:20	06/03/2024 11:30				Spill originated at 6393 Chambers Lodge Rd @ TCPUD Mckinney Sewer Station.  Photographs attached	39.07243	-120.1413	Force Main			240	Spill surfaced at a rate of 4 GPM, traveled a 40 foot distance, and pooled in front of TCPUD Mckinney Sewer Station.  See photographs attached	N						225	Paved Surface; Unpaved Surface		Spill surfaced at a rate of 4 GPM, traveled a 40 foot distance, and pooled in front of TCPUD Mckinney Sewer Station.  See photographs attached										05/23/2024 12:30	Flow rate and distance witnessed by TCPUD staff	TCPUD contractor witnessed water leaking from the ground at 11:30, possible water leak. TCPUD Superintendent was notified at 11:45	Other (specify below)	Pipe structural failure	Force Main		Other (specify below)	ACP	55	Spill originated from the north side of the TCPUD Mckinney Sewer Station and traveled a 40' distance to the east side of station	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Force main was back flushed to stop spill from occurring, vactor was used to excavate and remove sewage from surface, pipe was repaired with fukll circle clamp, spill area was disinfected with a light chlorine solution 	Repaired Facilities or Replaced Defect		Pipe was repaired with a full cirlcle clamp.  TCPUD plans on replacing 40' of force main encompassing the pipe failure area, as well as installing force main by-pass ports and drain valve in the Fall of 2024 when groundwater has subsided		05/23/2024 15:00	Investigation occurred and pipe was repaired on the same day of spill		Contractors and TCPUD staff on-site during the week	05/23/2024 15:00														N/A	Pipe replacement in Fall of 2024	Pipe replacement in Fall of 2024	Pipe replacement in Fall of 2024	Pipe replacement in Fall of 2024	Operational project	See pictures attached	See pictures attached	Contractors and TCPUD staff on-site during the week	
2	2SSO10200	Active	Sunnyvale CS	Sunnyvale City	895121	1.2	Certified	Winola Cheong	Senior Engineer		05-JUN-24	05-JUN-24	Monthly Category 3 Spill	1497 S Mary Ave	05/03/2024 10:13	05/03/2024 10:30	05/03/2024 09:58				Check Uploads 	37.34502	-122.05033	Gravity Mainline; Lateral Clean Out (Private); Lower Lateral (Private)			165	See Attachments 	N	Not applicable 					165	Street/Curb and Gutter (2 3)		See attachments 	Y	37.34478	-122.05026	37.34484	-122.05104	37.34499	-122.05107			05/03/2024 10:50	Eyeball method - (3) 55-gallon trash cans 	Start time predicted by time of call from reporting party. End time based on field work and observation  	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		60	Customers lateral was not in service for duration of work. Public health until spill was disinfected and cleaned.  Impact only during spill site is  in working condition and sanitized 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Contained spill using absorbent call spill shark (see pictures) . Disinfected using liquid alive (see pictures). Vacuumed all spill with Combo truck as well as washed down all affected areas. Returned to spill back to gravity main 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Flushed main to remove blockage. CCTV to find cause of blockage. Reflused main to remove all debris to restore flow 		05/03/2024 12:30	See CCTV report in attachments 		Not Applicable isolated incident 	05/06/2024 13:00														Not Applicable 	Not Applicable isolated incident. 	Not Applicable isolated incident 	Not Applicable isolated incident 	CCTV was used to identify root intrusion and FOG	Not Applicable isolated incident 	Not Applicable isolated incident 	Not Applicable isolated incident 	Not Applicable isolated incident 	
9	9SSO10656	Active	City of Poway CS	Poway City	895130	1.1	Certified	Troy DePriest	Assistant Director of Public Works - Utilities		05-JUN-24	05-JUN-24	Monthly Category 3 Spill	14644 Lake Poway Road	06/01/2024 12:32	06/01/2024 12:32	06/01/2024 12:32				The spill originated from manhole K8-018-SM located in the middle of a grass slope located at Lake Poway Park near the baseball field. 	33.00606	-117.01505	Manhole			140	The spill was contained to the grass slope.  See Attachment.	N						0	Other (specify below)	Grass Slope	The spill was contained less than 70 ft from the source of the spill.	Y	33.00606	-117.01505							06/01/2024 13:40	The spill volume was estimated using the DFK Solutions SMART Estimation Workbook Eyeball Estimation Method. 	Field call and visual inspection by staff.	Debris-wipes/Non-disposables; Root Intrusion		Gravity Mainline		Vitrified Clay		52	The spill was absorbed by the grass slope.	N	Cleaned Up (specify below); Restored Flow	Removed a small section of the grass affected from around the discharging manhole. New grass will be planted. 	Vactor truck broke stoppage in mainline and restored flow. Removed containment grass and disinfected the surrounding area.	Adjusted Schedule/Method of Preventive Maintenance		Adjusted the maintenance schedule in CMMS and will clean the mainline more frequently.		06/01/2024 15:30	Crew was called in for spill near public restroom at Lake Poway Park area. The Vactor was used to break the stoppage and vacuumed roots/wipes. Crew cleaned up and disinfected the area.		Not applicable.	06/01/2024 15:30														Not applicable.	See 20.b	Yes	No	During jetting increased roots and wipes were identified. 	No	Not applicable.	Call crew to break the stoppage using a Vactor truck. Cleaned and disinfected the area and adjusted the maintenance schedule in CMMS and will clean the mainline more frequently.	Not applicable.	
5R	5SSO10839	Active	Palo Cedro CS	Shasta CSA #8	895136	1.3	Certified	Scott Sealander	utilities operation superintendent		18-JUN-24	18-JUN-24	Monthly Category 3 Spill	end of wagonette ct	06/03/2024 01:15	06/03/2024 01:20	06/03/2024 01:11				This was a single appearance SSO.  coordinates below	40.558	-122.23582	Manhole			850	Photos of spill location attached.  	Y	Photos of conveyance system attached	0				0	Drainage Conveyance System		Spill traveled to drainage ditch, soaked into ground before reaching a waterway.	Y	40.55801	-122.23584							06/03/2024 01:35	spill volume was by estimation only.  This particular facility does not have SCADA controls.	The spill was reported by a customer at approximately 1311 hrs. on June 3rd, 2024. and spill ended at approximately at 1330. 	Root Intrusion		Gravity Mainline		Polyvinyl Chloride (PVC)		45	The spill had little effect on the environment as the spill was absorbed very quickly.  The area was immediately disinfected with granular chlorine.	N	Mitigated Effects of Spill (specify below)		The spill absorbed into the ground rather quickly, was not able to capture any of the spill.  The affected area was disinfected with granular chlorine.  	Other (specify below)	remove root ball	The root ball is coming from a cedar tree that is growing next the the affected manhole.  Plans are to remove the tree.		06/04/2024 11:43	SSO was caused by root intrusion. Operators removed the roots to clear blockage.  Roots are coming from a Cedar tree that is growing next to the affected manhole.  Plans are to remove Cedar tree that is causing the roots to accumulate.		N\A	06/20/2024 11:42														N\A	Operators will monitor affected manhole for root intrusion and remove as necessary until cedar tree in removed .	Preventative measure will consist of monitoring affected manhole for root intrusion	rehabilitation\replacement not necessary in this case.  SSO was caused by roots from a cedar tree growing next to manhole.  Plans are for the removal of tree	Operators will send camera down affected manhole to see if roots are collecting in gravity mainline on either side of manhole	 No capital improvements necessary.  Working with property owner to remove the tree responsible for the root intrusion. 	N\A	Spill response consisted of three operators to clear blockage.  Once blockage was cleared, operators spread granular chlorine on affected area.    	N\A	
9	9SSO10667	Active	Fallbrook PUD CS	Fallbrook Public Utility District	895149	1.3	Certified	Steve Stone	Field Services Manager	04-JUN-24	05-JUN-24	05-JUN-24	Category 1 Spill	1038 South Mission Rd.	06/02/2024 11:54	06/02/2024 12:27	06/02/2024 11:54		-		Originated at a Manhole. Roots appear to have been cut loose upstream getting trapped in the manhole.	33.3731	117.2535	Manhole			960	Exited manhole, ran approximately 50 feet down asphalt gutter into storm water drainage	Y	natural vegetation creek	0	960	small swale drain	960	0	Drainage Conveyance System		Open storm water conveyance, Fallbrook Creek	Y	33.3731	117.2535							06/02/2024 12:58	Visual using the SSCSC manhole overflow gauge	We considered start time when we were notified of a spill, end time is considered when we cleared the blockage	Debris from Lateral		Manhole		Vitrified Clay		49	ran down an asphalt gutter into the Fallbrook Creek, signs were posted at the contaminated location, gutter was cleaned	N	Cleaned Up (specify below); Restored Flow		Cleared the blockage, washed down and vacuumed the gutter 	Other (specify below)	we feel this was an isolated incident. Roots were cut from an upstream lateral	we feel this was an isolated incident. Roots were cut from an upstream lateral	N/A	06/02/2024 13:31	we feel this was an isolated incident. Roots were cut from an upstream lateral	N			Fallbrook Creek	Other (specify below)	storm water creek	Open storm water conveyance/creek	none	Restricted Public Access		none	0	N	N												
8	8SSO10635	Active	Villa Park City CS	Villa Park City	895158	1.0	Work In Progress						Monthly Category 3 Spill	Intersection of Santiago Blvd and Center Drive	06/03/2024 11:00	06/03/2024 11:05	06/03/2024 11:00				Manhole at the intersection of Santiago Blvd and Center Drive. See attachment	33.8142	-117.8133	Manhole			960	Spill travelled through the gutter on Santiago Blvd and stopped at Wanda in the catch basin	Y	Storm drain inlet at Wanda	960				960	Drainage Conveyance System		Location start point GPS Coordinates provided above. Spill traveled about 2700 ft into storm drain inlet at Wanda.  Spill did not flow beyond the catch basin	N									06/03/2024 01:00	Visual estimate of 8 gallons per minute flowing for 2 hours	Sewer estimation guide developed by Orange County WDR Steering Commitee	Root Intrusion		Manhole		Polyvinyl Chloride (PVC)		70	Spill was completely cleaned up 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		City staff responded as soon as complaint received from the public.  The flow rate was determined, and staff immediately called a cleanup company to remove the blockage and clean the spill in its entirety	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance		See the response provided above		06/03/2024 01:00	See responses provided above		Spill was caused by tree roots	06/03/2024 01:00														N/A	There is broader plan to improve the City's sewer system	Part of the City's plan and specific schedule has not been confirmed yet	See 20d	See 20d	See 20d	Not available at this time	No modifications needed	Spill was caused by tree roots	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	895159	1.3	Certified	Ameal McLaurin	Sewer Supervisor 2		05-JUN-24	05-JUN-24	Monthly Category 3 Spill	1422 45th avenue, Oakland Ca	05/29/2024 19:28	05/29/2024 20:02	05/28/2024 15:00				Inside the building/structure's toilet and shower drain overflowed and flooded the building.	37.7719	-122.21234	Inside Building or Structure			552	Inside the building/structure's toilet and shower drain overflowed and flooded the building.	N						552	Building or Structure		Inside the building/structure's toilet and shower drain overflowed and flooded the building.										05/29/2024 21:31	35'L x 34'W x .062'D x 7.48-gal = 552 gallons Average depth of the sewage: .17' + .06' + .02' + .0013'= .2513' / 4 = .062' 	Start time was based on witness account. The end time was based on responding sewer crew restoring the flow.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		125	Inside the building/structure's toilet and shower drain overflowed and flooded the building. 	N	Contained All or Portion of Spill; Other (specify below); Property Owner Notified; Restored Flow	The owner of the building was provided with a claim packet to have a restoration company to clean and mitigate the effects of the spill.	The spill was contained in the building. The owner of the building was provided with a claim packet to have a restoration company to clean and mitigate the effects of the spill.	Adjusted Schedule/Method of Preventive Maintenance		High frequency maintenance program has been adjusted from 6-months to 3-months hydro high frequency maintenance program.		05/30/2024 10:00	CCTV inspection W.O. # 1529374 found the mainline to be in good condition, they found grease deposition to had been the potential cause of the overflow.		N/A	05/30/2024 10:00														N/A	High frequency maintenance program has been adjusted from 6-months to 3-months hydro high frequency maintenance program.	High frequency maintenance program has been adjusted from 6-months to 3-months hydro high frequency maintenance program.	N/A	CCTV inspection W.O. # 1529374 found the mainline to be in good condition, they found grease deposition to had been the potential cause of the overflow.	N/A		High frequency maintenance program has been adjusted from 6-months to 3-months hydro high frequency maintenance program W.O. # 1529759.	N/A	
8	8SSO10635	Active	Villa Park City CS	Villa Park City	895169	1.4	Certified	Mahrooz Ilkhanipour	City Engineer	05-JUN-24	07-JUN-24	07-JUN-24	Category 2 Spill	Intersection of Santiago Blvd and Center Drive	06/03/2024 11:00	06/03/2024 11:05	06/03/2024 11:00		-		Manhole at the intersection of Santiago Blvd and Center Drive	33.8142	-117.8133	Manhole		N/A	3000	Spill traveled through the gutter on Santiago Blvd and stopped at Wanda in the catch basin	Y	Spill traveled through the gutter on Santiago Blvd and stopped at Wanda in the catch basin.  	3000	0			3000	Drainage Conveyance System		Location start GPS 33.8142, -117.8133.  Spill traveled about 3000 ft into storm drain inlet at Wanda. Spill did not flow beyond the catch basin	Y	33.8142	-117.8133	33.8139	-117.8164	33.8139	-117.8192	33.8133	-117.8217	06/03/2024 01:00	Visual estimate of 25 gallons per minute flowing for 2 hours	Sewer estimation guide developed by Orange County WDR Steering Committee	Root Intrusion		Manhole		Vitrified Clay		70	Spill was completely cleaned up	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		City staff responded as soon as complaint received from the public. The flow rate was determined and staff immediately called a cleanup company to remove the blockage and clean the spill in its entirety.	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance		See the response provided above	See the response above	06/03/2024 01:00	Spill was caused by tree roots	N		06/03/2024 01:00										N													
9	9SSO10668	Active	HARRF Disch To San Elijo OO CS	Escondido City	895177	1.4	Certified	Victor Corrales	Wastewater Operations Manager	06-JUN-24	17-JUN-24	17-JUN-24	Category 1 Spill	135 San Pasqual Valley	06/04/2024 06:48	06/04/2024 06:58	06/04/2024 00:58	06/04/2024 08:30	21-3198		Spill originated from a sewer manhole in an alley.	33.12668	-117.06547	Gravity Mainline; Manhole			2700	Spill originated from a sewer manhole in an alley traveled west towards Beech Ave. At Beech Ave. spill traveled North to the corner of Grand Ave. and Beech Ave. entering into a storm drain inlet. The storm drain carried the spill north along Beech Ave.  and discharging into the Escondido Creek.	Y	Storm drain Inlet is located at the south, east corner of Grand Ave and Beech Ave about 80 feet north of Alley way. Outlet is located at channel about 1620' and north of inlet on Beech Ave.	100	0	Storm drain system outlet is a 60  pipe that dumps into a V Shape open channel known as Escondido Creek.	1900	800	Drainage Conveyance System that discharges to surface water		Spill originated from a sewer manhole (# 6192) in an alley traveled west towards Beech Ave. At Beech Ave. spill traveled North to the corner of Grand Ave. and Beech Ave. entering into a storm drain inlet. The storm drain carried the spill north along Beech Ave. and discharging into the open Escondido Creek flood control channel travel north towards Beech flowing to storm drain channel. The Escondido flood control channel is a concrete lined channel that traverses through the center of Escondido. The concrete channel flows to the Escondido Creek at Harmony Grove Road.	Y	33.12668	-117.06547							06/04/2024 07:30	Visual estimation base on observation of flow from manhole lid.	Spill start time was determined by time notified & estimated high flows.	Debris-Rags; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		73	Escondido creek received 1900 gallons of sewer flow.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		At 0717 a vacuum was set up to control discharge of sewer entering storm drain inlet. At 0720 additional staff arrived on scene with Gapvax 3560. They set up on manhole 6195 and shot to overflowing manhole to 6192. At 0730 stoppage was broken about 390 ft into main sewer line. staff also set up at Beech and Valley with Vactor truck 3568 and started vacuuming discharge of sewer water from 135 South San Pasqual Valley Rd. at storm drain channel. At 0755 staff started vacuuming sewage water from entering into storm drain channel. staff then started the cleanup process. They washed the alley and east side of Beech going towards Grand Ave. All wash water was recovered.	Other (specify below)	We updated our Report It app notification to automatically email onsite 24 hour duty phone.  We have also simplified the categories to allow us to receive most water spill related service requests. We also, televised mainline & added it to the 6 month scheduled maintenance.	We updated our Report It app notification to automatically email onsite 24 hour duty phone.  We have also simplified the categories to allow us to receive most water spill related service requests. We also, televised mainline & added it to the 6 month scheduled maintenance.	The following scheduled milestones have been completed: We updated our Report It app notification to automatically email onsite 24 hour duty phone.  We have also simplified the categories to allow us to receive most water spill related service requests. We also, televised mainline & added it to the 6 month scheduled maintenance.	06/04/2024 08:32	After the spill was terminated and cleaned, staff used agency's CCTV truck to determine what the case of the spill was. CCTV determined the cause to be a combination of FOG & debris.	N			Escondido Creek	Other (specify below)	Escondido Creek flood control channel that extends 3.6 miles downstream from where the spill entered to Harmony Grove Road. At Harmony Grove road, the creek transitions from a concrete lined channel to natural earth.	Open channel to Escondido Creek & ultimately San Elijo Lagoon.	none	Other (specify below)	The San Diego County Department of Enviornmental Health and Quality, stated no closures were necessary nor was the public access to the creek.	not applicable	0	N	N												
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	895181	1.3	Certified	Ameal McLaurin	Sewer Supervisor 2		06-JUN-24	06-JUN-24	Monthly Category 3 Spill	1775 Manzanita Drive, Oakland Ca	06/03/2024 16:55	06/03/2024 19:00	06/03/2024 14:30				Manhole in the street overflowing to paved surface on street and gutter areas.	37.84104	-122.19668	Manhole			244	Manhole in the street overflowing to paved surface on street and gutter areas.	N						244	Street/Curb and Gutter (2 3)		Manhole in the street overflowing to paved surface on street and gutter areas.	Y	37.84035	-122.19749							06/03/2024 20:23	Manzanita side: 677'L x 4'W x.01'D x 7.48-gal =203 gallons Average Width: 8' + 4' + 3' + 1' = 16 / 4 = 4' Northwood Ct. side: 184'L x 3'W x.01'D x 7.48-gal = 41 gallons Average Width: 4' + 2' = 6' / 2 = 3' Total spill: 203 + 41 = 244 gallons	Start time was based on eyewitness account. The end time was based on responding sewer crew restoring the flow in the mainline.	Root Intrusion		Gravity Mainline		Vitrified Clay		125	Manhole in the street overflowing to paved surface on street and gutter areas.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	Washed the affected areas of the spill, recovered all the spill, and returned the sewage to the sewer collection system. 	Staff contained, cleaned, washed the affected areas. Staff recovered the sewage and returned the sewage to the sewer system.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Mainline has been placed on power rodder 3-month high frequency maintenance program. W.O. #1820899.		06/04/2024 09:25	The investigation has been completed. CCTV inspection W.O. # 1530500 found the mainline to be in good condition, the potential cause of the overflow was root intrusion.		The investigation has been completed. CCTV inspection W.O. # 1530500 found the mainline to be in good condition, the potential cause of the overflow was root intrusion.	06/04/2024 09:25														N/A	Mainline has been placed on power rodder 3-month high frequency maintenance program. W.O. #1820899.	Mainline has been placed on power rodder 3-month high frequency maintenance program. W.O. #1820899.	N/A	CCTV inspection W.O. # 1530500 found the mainline to be in good condition, the potential cause of the overflow was root intrusion.	N/A	Mainline has been placed on power rodder 3-month high frequency maintenance program. W.O. #1820899.	Mainline has been placed on power rodder 3-month high frequency maintenance program. W.O. #1820899.	The investigation has been completed. CCTV inspection W.O. # 1530500 found the mainline to be in good condition, the potential cause of the overflow was root intrusion.	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	895194	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		02-JUL-24	02-JUL-24	Monthly Category 3 Spill	375 North Carolwood Drive	06/06/2024 10:34	06/06/2024 11:45	06/06/2024 10:34				The initial crew arrived at 1:55P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine 	34.085015	-118.430464	Lower Lateral (Private)			997	Documents related to the Sanitary Sewer Overflow at 375 North Carolwood Drive.	N		0				0	Other (specify below)	The entire back up amount soaked into the ground.	Soaked into the ground.  34.085015  -118.430464	Y	34.085015	-118.430464							06/06/2024 21:30	The SSO volume was estimated utilizing a standardized template which calculates the volume by using dimensional analysis	Volume of a spill contained in a rectangular area Length400feet Width2feet Depth2inches0.1667feet  133.33ft3997gallons 	Root Intrusion		Gravity Mainline		Vitrified Clay		97	On Thursday, June 6, 2024, at 10:34 AM., the Clean Water Conveyance Division (CWCD) received a report of a broken sewer at 375 North Carolwood Drive (TG 592-C6). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 9:30 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.    It was estimated that approximately 997 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground. 	N	Contained All or Portion of Spill; Restored Flow		It was estimated that approximately 997 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		On Thursday, June 6, 2024, at 10:34 AM., the Clean Water Conveyance Division (CWCD) received a report of a broken sewer at 375 North Carolwood Drive (TG 592-C6). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 9:30 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.    It was estimated that approximately 997 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground. 		06/06/2024 21:30	On Thursday, June 6, 2024, at 10:34 AM., the Clean Water Conveyance Division (CWCD) received a report of a broken sewer at 375 North Carolwood Drive (TG 592-C6). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 9:30 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  		None At This Time.	06/06/2024 21:30														None At This Time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	None At This Time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	On Thursday, June 6, 2024, at 10:34 AM., the Clean Water Conveyance Division (CWCD) received a report of a broken sewer at 375 North Carolwood Drive (TG 592-C6). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 9:30 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.    It was estimated that approximately 997 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground. 	None At This Time.	
2	2SSO10216	Active	West County WW District CS	West County Wastewater District	895198	1.2	Certified	Gordon Times	Collection System Operations Department Manager	07-JUN-24	17-JUN-24	17-JUN-24	Category 1 Spill	1930 Espanola Dr.	06/06/2024 13:05	06/06/2024 13:21	06/06/2024 10:45	06/06/2024 14:58	24-3261		The manhole is in front of 1939 Espanola Dr.	37.97834	-122.34331	Manhole	N/A	N/A	2558	The spill came out of the manhole, traveled 35 ft.  to the storm drain, and into a dry creekbed.	Y	The conveyance system is a storm drain.	65	0	The dry creekbed is the point where the storm drain flowed.	2493	65	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		The spill event destination was a dry creek bed which was behind residences near 1930 Espanola DR.	Y	37.97834	-122.3431							06/06/2024 13:36	The spill volume was estimated by counting the number of upstream units, calculating the gallons per period, and multiplying the two.	A resident at 1020 Espanola Dr. saw the spill from a manhole at approximately 10:45 am, called us at approximately 1:05 pm, we arrived at approximately 1:21 pm, and we broke the stoppage at approximately 1:36 pm.	Collection System Maintenance Failure (specify below); Debris from Lateral; Debris-General; Debris-Rags; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		65	The spill ran down a paved street to a storm drain which leads to a dry creekbed. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		We took pictures on arrival, blocked from to storm drain, and rodded the line to break the stoppage. We positioned our Vactor to catch and recover what we could until the stoppage was broken. We washed the street, the manhole, and the storm drain.	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause		We put this line segment on a 3 month tv and cleaning cycle. We enlisted help from our environmental compliance inspectors to inform residents of our FOG program.	We plan to tv this line to see if the FOG program information helps.	06/06/2024 14:50	We discovered that there was a large amount of grease, and miscellaneous debris in this line by cleaning and televising the line. 	Y	We want to know if informing the community about the FOG program helps.	09/06/2024 15:30	Unknown	Other (specify below)	Dry creekbed	It's a dry creekbed that runs behind the homes near 1930 Espanola Dr.	No aquatic life present	Other (specify below)	There isn't any public access	N/A	0	N	N											We want to know if informing the community about the FOG program helps.	
4	4SSO10421	Active	Redondo Beach City CS	Redondo Beach City	895199	1.1	Certified	Geraldine Trivedi	Civil Engineer		07-JUN-24	07-JUN-24	Monthly Category 3 Spill	2901 W. 190th Street	06/02/2024 11:57	06/02/2024 12:14	06/02/2024 11:57				The spill originated in the City's main line gravity sanitary sewer system.  The spill appearance point was at a street manhole.  See photos attached to this report.	33.858417	-118.355265	Manhole			460	Photos has been submitted as part of this report showing the wet area in the street and the manhole where the spill appeared.	Y	Stormdrain curb and gutter, into a catch basin and stormdrain pipe.	460				460	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		A map and photos are attached as part of this spill report.	Y	33.8584417	-118.355265							06/02/2024 14:35	The spill volume was calculated using several different methods, including measurements of the actual spill and high of water coming out of the manhole pickhole.  In addition, calculations in the office were made.	The spill volume was calculated using several different methods, including measurements of the actual spill and high of water coming out of the manhole pickhole.  In addition, calculations in the office were made.	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		50	Impact of the spill was staff and resources used, as well minor traffic impacts.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		The Fire Department installed a soil berm to keep as much of the spill as possible from reaching the catch basin.  In addition, a Vactor truck was used to recover the spill and clean up the area.  	Adjusted Schedule/Method of Preventive Maintenance		City staff reviewed the location and will increase the cleaning frequency of this mainline.		06/02/2024 14:35	Spill cause determined to be debris (wipes) and Fats, Oils & Grease buildup.		none	06/02/2024 14:35														none	City staff reviewed the location and will increase the cleaning frequency of this mainline.	Mainline to be cleaned and inspected on a more regular basis.	none	none	none	Per this report.	none	none	
5S	5SSO10000	Active	Demo South CS	State Water Resources Control Board	895206	1.0	Work In Progress						Monthly Category 3 Spill	TEST	06/10/2024 11:55	06/10/2024 11:55	06/10/2024 11:55				TEST	38.56608	-121.42087	Backflow Prevention Device			51	TEST	N							Building or Structure		TEST										06/10/2024 11:55	TEST	TEST	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure		Air Relief Valve (ARV)/ Blow-Off Valve (BOV)		Acrylonitr. Butadiene Styrene (ABS)		1	TEST	N	Cleaned Up (specify below)		TEST	Added Sewer to Preventive Maintenance Program		TEST		06/10/2024 11:55	TEST		TEST	06/10/2024 11:57														TEST	TEST	TEST	TEST	TEST	TEST	TEST	TEST	TEST	
3	3SSO10287	Active	Marina Coast CS	Marina Coast WD	895207	1.5	Certified	Derek Cray	Operations & Maintenance Manager		26-JUN-24	26-JUN-24	Monthly Category 3 Spill	323 Ardennes/Metz	06/02/2024 13:50	06/02/2024 14:15	06/02/2024 13:38				Spill originated from the manhole on the corner of Ardennes/Metz at an approximate spill rate of 4.27gpm. 	36.63006	-121.80835	Manhole			192	Upon exiting the manhole, sewage collected in the gutter which then reached the storm drain located four feet from the manhole.  Sewage then made its way west through the storm drain system where it was intercepted before reaching General Jim Moore. All sewage was contained and recovered by utilizing the vactor truck.	Y	The storm drain system consisted of 12in/24in diameter concrete pipe which flows towards General Jim Moore Blvd. The storm system did have a moderate buildup of dirt, leaves, sticks and other debris which aided in disrupting the flow of sewage, as well as acting as berms. The storm containment located on General Jim Moore was also cleaned of all existing sand and debris. While the crew was investigating the full reach of the spill, it was confirmed sewage did not reach this point or contribute to the buildup of liquid or debris within the containment. Since the crew and equipment were already onsite the containment was included in the cleanup. 	189				192	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Once the sewage reached the storm drain, it made its way west towards General Jim Moore. After a thorough investigation, the spill limit was determined the be at the storm drain closest to the intersection of Ardennes Cir/Hatton Rd.	Y	36.63037	-121.81157							06/02/2024 14:24	The spill volume was determined by calculating the spill area on the sidewalk and gutter at the spill appearance point. A varied (+/-) two inch channel of sewage was seen throughout the full length of the storm main, up to the recorded end of spill destination.   Appearance point:                                                                                         loc1 1.5x1x.20x7.48=2.24gal   loc2 .5x1x.2x7.48=.75 gal          total  2.24+.75 = 2.99 gal  Storm drain: .16x.16x988x7.48=189.19 gallons. ( 2in/12=.16)       2.99gal + 189.19gal =192.18 total gallons.  	The spill start time was captured by measuring the height of sewage exiting the pick hole while the spill was still active, this allowed for a calculation to determine the estimated gpm of the spill. The total spill path was then calculated to obtain the total spill volume. The total spill volume was then divided by the estimated spill gpm, which provided the duration of spill in minutes.  The spill end time was recorded once the jetter unit relieved the blockage.	Debris-General; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		45	The spill impact area was limited to the area around the manhole as well as the storm drain system. All sewage was recovered from the storm drain by utilizing the vacuum truck. The vacuum truck was also used to disinfect and wash down the curb, gutter and sidewalk. All water used for cleanup and disinfection was removed and properly disposed of. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Upon arrival, the required appearance point information was collected. Once collected, one operator began to work on relieving the blockage while the other began to work on identifying the spill path and spill limit. Once this information was determined cleanup began which included disinfecting and washing down the sidewalk, as well as hydro cleaning of the storm drainage system to ensure the recapture of all sewage as well as the water used for cleanup. The cleanup included the storm containment on General Jim Moore which did have debris and standing water, but was not a result of the spill.  	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		This location has been placed on the list of trouble spots with a quarterly maintenance frequency. This location will also receive a CCTV reinspection before the second quarterly maintenance is to be completed. This will help to evaluate the effectiveness of the scheduled maintenance and adjust the schedule accordingly if found necessary.		06/02/2024 15:00	The sewer main was inspected by utilizing the Districts CCTV unit. The causing factor was determined to be sticks, had entered the sewer system which lodged and disrupted the normal flow. This allowed for the accumulation of grease which resulted in the blockage. During the CCTV investigation the sewer main was also jetted and evaluated with no critical issues discovered. This location will be reinspected by the CCTV unit before the second quarterly maintenance is conducted. 		The CCTV unit was utilized to inspect the integrity of the sewer main as well as to identify defects which may have caused the blockage. It was determined the blockage was caused by sticks which disrupted the flow and allowed for the accumulation of grease. This location is scheduled to be reinspected on 11.25.24 to allow for evaluation of the sewer maintenance, as well as the trouble spot frequency. Adjustment to either will be made if found necessary.	06/04/2024 15:00														N/A	This location has been added to the Districts list of trouble spots with a quarterly maintenance frequency. This location will also be reinspected by the CCTV unit before the second maintenance is completed. 	This location has been added to the Districts list of trouble spots. This location will also be reinspected to evaluate the effectiveness of maintenance. The schedule can then be adjusted accordingly. 	Currently, there is no planned replacement for this segment of sewer main.	This location was inspected with the Districts CCTV unit. A reinspection has been scheduled before the second quarterly maintenance is to be performed. This is to allow for the evaluation of the maintenance frequency and to adjust the frequency accordingly.	Currently the District has no capital improvement plans for this segment of sewer main. 	A photo of the CMMS maintenance scheduled for this location has been included under attachments.   	No spill responce modification required. 	The CCTV unit was utilized to inspect the integrity of the sewer main as well as to identify defects which may have caused the blockage. It was determined the blockage was caused by sticks which disrupted the flow and allowed for the accumulation of grease. This location is scheduled to be reinspected on 11.25.24 to allow for evaluation of the sewer maintenance, as well as the trouble spot frequency. Adjustment to either will be made if found necessary.	
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	895210	1.2	Certified	Daniel Whitlock	Manager		28-JUN-24	28-JUN-24	Monthly Category 3 Spill	230 Magellan Ave.	10/21/2023 19:50	10/21/2023 20:20	10/21/2023 18:50				Spill flowed out of manhole in front of 239 Magellan Ave. (N-34954). Contained to street and strip of grass on sidewalk where manhole is located.	37.74723	-122.46068	Manhole			630	Contained to the street and the strip of grass on sidewalk where manhole is located. Spill flowed into catch basin N-388504 at intersection of Magellan and Sola ave.	N						630	Other (specify below)	Combined Catch Basin	Spill flowed into catch basin N-388504 at intersection of Magellan and Sola ave.	Y	37.74723	-122.46068	37.74747	-122.46033	37.74773	-122.46005			10/21/2023 20:20	3 gal/min x 210 min = 630 gallons	Flow rate was estimated to be 3 gal/min based on spill area around manhole.	Root Intrusion		Gravity Mainline		Other (specify below)	ISP	100	Spill contained to the street and sidwalk strip and flowed down to catch basin at Sola and Magellan Ave.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		Relieved main sewer with Vaccon. Removed blockage from main sewer and washed down and disinfected street.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		WO 8192164 to CCTV asset P-85506  WO 6980852 to inpsect P-105385 (easement along Magellan) (from PM program)  Added to PM program		06/11/2024 10:00	CCTV confirmed that root intrusion was the cause of the spill (WO 8192164)		N/A	06/11/2024 10:00														N/A	Added to PM program.	Added asset P-85506 to PM program.	N/A	P-85506 P-105385	N/A	N/A	SSO was not originally reported into CIWQS due to it getting misplaced when passed between staff. Entered into CIWQS when we re-found original records.	N/A	
1	1SSO10041	Active	Lake Shastina Csd CS	Lake Shastina CSD	895211	1.2	Draft Submitted			10-JUN-24			Category 1 Spill	manhole at LAKE SHORE and INDIAN ISLAND	06/07/2024 10:09	06/10/2024 10:15	06/07/2024 09:53		-		At the corner of LAKESHORE and INDIAN ISLAND	41.51999	-122.3758	Manhole			600	From the center of the road it drained to the soft sand shoulder and flowed thirty feet to the North and sunk into the ground at about that point.	N				A manhole in a three way intersection.	0	0	Unpaved Surface		From the middle of the three way intersection to the edge of the pavement and North for thirty feet and sunk into soft sand.	Y	41.51999	-122.3758							06/07/2024 11:55	Judging by the 3' wide path for the 45' length of travel and the bathtub ring it left...  Four hundred gallons would be the minimum and 600 gallons maximum.	I received the notification at 11:49am, I was on scene at12:00pm.  At that time of day flow is generally very low. And it hadn't reached its end.	Pump Station Failure - Controls		Pump Station - Controls		Concrete		30	Minimal. The wet shoulder was the extent.	N	Mitigated Effects of Spill (specify below)		Sanitize the effected area with a bleach solution.	Repaired Facilities or Replaced Defect		Increase maintenance and inspections.	Replace floats with transponders	06/07/2024 12:14	The electronics and electrical systems were tested several times. The floats were found to be faulty and were replaced. Then tested several more times and found to have solved the problem.  Since then we have retested and found no fault.	N			none	Reservoir		irrigation reservoir	none	Other (specify below)	There was no impact on the public	none	0	N	N												
5F	5SSO11319	Active	SA-2 Bass Lake CS	Madera County Public Works Department - Special Districts	895217	1.6	Certified	Chad Brown	Utility Manager		12-JUN-24	12-JUN-24	Monthly Category 3 Spill	Acorn & Road 432	06/08/2024 10:30	06/08/2024 10:55	06/08/2024 10:00				Root blockage caused manhole to overflow at 37.325572, -119.569293	37.325572	-119.569293	Manhole		N/A	200	Root blockage in main caused back up and overflowed at manhole.	N						0	Paved Surface		Small area of the roadway.	Y	37.325572	-119.569293							06/08/2024 11:25	Area that was wet assuming if you dumped 55 gallon barrels on the ground.	Call from Sheriff Department.	Root Intrusion		Gravity Mainline		Concrete		49	Contained on pavement and dried up. Debris were swept up. No impact.	N	Cleaned Up (specify below); Restored Flow	Debris were swept up and removed.	Hydro jetter was used to clear blockage and screen was used to catch and remove roots from manhole.	Inspected Sewer Using CCTV to Determine Cause		Hydro jetter was used to clear blockage and screen was used to catch and remove roots from manhole. Camera the line to inspect intrusion.		06/08/2024 10:28	Camera showed where roots had infiltrated the pipe. 		Monitor and flush as needed.	06/10/2024 10:15														N/A	Hydro flush line more often. Repair section if needed.	Quarterly flushing.	If needed section will be replaced.	Camera to confirm cause and make sure pipe is clear.	Replace pipe as needed.	Timecards and log book.	On call Friday to Friday 24 hours a day.	Monitor and flush as needed.	
2	2SSO10179	Active	San Jose City CS	San Jose City	895226	1.2	Certified	Ben Nguyen	Senior Engineer	11-JUN-24	21-JUN-24	21-JUN-24	Category 1 Spill	Willow St and Lelong St, San Jose CA, 95110	06/06/2024 20:09	06/06/2024 20:21	06/06/2024 19:09	06/06/2024 21:48	24-3269		The location of the spill was a manhole at the intersection of Willow Street and Lelong Street in San Jose CA	37.315174499743	-121.888580272063	Manhole			117	The spill discharged from the manhole and traveled along the street curb/gutter.   From the curb gutter, the sewage traveled along the street and reached a nearby storm inlet. this storm inlet is connected to the City of San Jose's municipal storm sewer pump station and storm drain system.  The sewage traveled within the storm system to a storm outfall discharging to the Guadalupe River.	Y	The spill reached nearby storm drain inlet along the Willow street.  This storm drain inlet (inlet #60492 on CJS' GIS) is connected to the City of San Jose's municipal storm sewer pump station and storm drain system. The sewage traveled within the storm system to a storm outfall discharge point at Guadalupe River.	0	0	The sewage reached Guadalupe river while discharging from storm outfall.  The location o the storm outfall along the Guadalupe river is approximately at 37.314807369931884, -121.88960242047129	19	98	Surface Water		The spill enter a inlet on Willow Street and traveled to a storm water pump station near by.  Per pump data, the pump was ran once at about 16:08, and this was assumed that the water reached the outfall to the Guadalupe River.  Crew shut the pump down at about 22:00.  	Y	37.3149	-121.88956							06/06/2024 21:06	Spill volume was estimated based on flow rate duration method.  Start time was assumed to be one hour prior to RP's notice of the spill due to water mark on the street. Duration was estimated at 117 minutes.  Flow rate was estimated as 1 gpm per video clip taken by the first responder.   	Spill volume was estimated based on flow rate duration. 	Vandalism (specify below)	Crew pulled out car's bumper, rag, plastic sheet, car's hub cab, junk of asphalt, tarp, and some unidentifiable items.  	Gravity Mainline		Vitrified Clay		67	Water reach the street and curb and gutter, but was clean up.  Water reached a storm water pump station.  Crew cleaned the pump station's wet well the day after the event, 6/7/24.  Water reached the outfall and staff found no impact to the water way. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Crew cleared the plug, removed debris from sanitary system, restored the flow, tested storm water inlet/manhole/pump station/ outfall. Crew cleaned up street with two truck method, notified appropriate agencies, and document the event.  	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause	Segment is planned to be repaired in the near future.  	CCTV inspection was performed immediately after the spill.  	Repair will be performed by Department of Public Work w/ video inspection after.  Staff will discuss a potential installation of a lockdown MH at this location due to a frequent present of an unhoused population.   	06/06/2024 23:30	Staff reviewed the pic/video and information from the first responder.  Staff reviewed the debris that was removed from the inlet of the plugged segment and discovered that the area is close to an large unshouse encampment.  And CCTV result showed no evident of grease.  It was concluded that the spill was caused by the debris that was pulled out of the MH.    	N			Gaudelupe River.  	River		The Guadalupe River mainstem is an urban, northward flowing 14 miles river in California whose much longer headwater creeks originate in the Santa Cruz Mountains. The river mainstem now begins on the Santa Clara Valley floor when Los Alamitos Creek exits Lake Almaden and joins Guadalupe Creek just downstream of Coleman Road in San Jose, California. From here it flows north through San Jose, where it receives Los Gatos Creek, a major tributary. The Guadalupe River serves as the eastern boundary of the City of Santa Clara and the western boundary of Alviso, and after coursing through San Jos�, it empties into south San Francisco Bay at the Alviso Slough.  	No impact	Other (specify below)	No impact	Valley Water	0	N	N												
5S	5SSO11487	Active	Rancho Murieta Community Service District CS	Rancho Murieta CSD	895234	1.4	Certified	Travis Bohannon	Interim Director of Operations	13-JUN-24	20-JUN-24	20-JUN-24	Category 1 Spill	Between 6A lift station and Bass Lake (recycle water lake)	06/11/2024 07:01	06/11/2024 07:15	06/11/2024 05:30		-		Behind 15500 De La Cruz Dr. in Rancho Murieta GPS 38.500959, -121.074708	38.50095	-121.07476	Manhole			90	Grate for drainage is about 20 feet below sewer manhole that over flowed. Sewer water ran into drainage along with irrigation water. 	Y	Sewer spill went into a Drain grate that runs into a recycle water lake that is used for golf course irrigation. This lake has no drainage out or water conveyance system to take water out to any receiving waters.	10	10	sewer spill went into drainage that is conveyed to a recycle water lake that is used to water a golf course. See picture from district GIS.	70	0	Drainage Conveyance System		Sewer spill went into a Drain grate that runs into a recycle water lake that is used for golf course irrigation. This lake has no drainage out or water conveyance system to take water out to any receiving waters.	Y	-121.074694	38.500979							06/11/2024 08:30	visual inspection of flow from manhole cover	Based on visual inspection of flow from manhole cover	Pipe Structural Problem/Failure - Installation		Manhole		Polyvinyl Chloride (PVC)		30	No major impact from the spill	N	Returned All Spill to Sanitary Sewer System		Use vactor truck to pump out manhole, then used jetter to clear the line.  	Inspected Sewer Using CCTV to Determine Cause		Replaced broken pvc pipe and reconnected to wetwell	unknown	06/11/2024 08:30	The investigation of the spill showed that the pipe was broken due to settling of soil around liftstation.  	N			None	Other (specify below)	Recycled water lake	Manmade reservoir used for irrigation of golf course	No effect on aquatic life seen.	Other (specify below)	No body contact reservoir	RMCSD / RMCC	0	N	N												
3	3SSO10275	Active	Heritage Ranch CS	Heritage Ranch CSD	895241	1.3	Certified	Scott B Duffield	General Manager	12-JUN-24	13-JUN-24	13-JUN-24	Category 1 Spill	4597 Creekside Lane	06/12/2024 07:31	06/12/2024 07:42	06/12/2024 07:25	06/12/2024 12:15	24-3367		4597 Creekside Lane, Paso Robles, CA 93446	35.72616	-120.89713	Other Sewer System Structure	Manhole.  Flowed through the pick holes.		200	Roots caused a partial blockage that resulted in a manhole overflowing slowly through the manhole lid pickholes.  It ran down to the end of the street.	Y	It spilled onto the street, slowly down the street, to a catch basin in the cul-d-sac that discharges to a drainage to Lake Nacimiento.	170	30	It spilled onto the street, slowly down the street, to a catch basin in the cul-d-sac that discharges to a drainage tributary to Lake Nacimiento.	30	170	Drainage Conveyance System that discharges to surface water; Paved Surface; Surface Water		Roots caused a partial blockage that resulted in a manhole overflowing slowly through the manhole lid pickholes.  It spilled onto the paved street, slowly down the street, to a catch basin in the cul-d-sac that discharges to a drainage to Lake Nacimiento. 	Y	35.72616	-120.89713							06/12/2024 07:42	Visual observation.	The time of the call and visual observations.	Root Intrusion		Gravity Mainline		Polyvinyl Chloride (PVC)		40	The impact was minimal since the response time was very quick.  The street was impacted along the flow line of the shoulder and slow flowing.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Sand bags deployed to contain most of spill.  Vacuum trailer used to pump out manhole and break through root blockage to reestablish flow.  Then cleaned out the roots better once the flow was moving and the spill was cleaned.	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	All of our sewer lines are on a preventative maintenance program.  This line is due for cleaning this year which usually occurs in May; however, the service provider's vac truck broke down and is yet to be available.  We have contacted and are in process of scheduling a replacement service provider.	All of our sewer lines are on a preventative maintenance program.  This line is due for cleaning this year which usually occurs in May; however, the service provider's vac truck broke down and is yet to be available.  We have contacted and are in process of scheduling a replacement service provider.	All of our sewer lines are on a preventative maintenance program.  This line is due for cleaning this year which usually occurs in May; however, the service provider's vac truck broke down and is yet to be available.  We have contacted and are in process of scheduling a replacement service provider.	06/12/2024 15:00	Video of the line found the root intrusion.	N			Lake Nacimiento	Lake		Lake Nacimiento	none	Other (specify below)	none	Monterey County Parks	0	N	N												
5F	5SSO11323	Active	Mariposa Co YOSEMITE WEST CS	Mariposa Cnty DPW	895243	1.3	Certified	Darryl Nielsen	Senior Plant Operator	17-JUN-24	18-JUN-24	18-JUN-24	Category 1 Spill	Yosemite West CS	06/08/2024 18:11	06/09/2024 08:41	06/08/2024 18:00	06/10/2024 09:50	24-3316		On June 8th, 2024, , Yosemite West Maintenance District, operated by Mariposa County Public Works, suffered a sanitary sewer overflow. The overflow took place at 7162 Yosemite Parkway, the last house, last connection in the subdivision. 	37.6497	-119.72391	Lateral Clean Out (Private)			25904	When the lateral cleanout overflowed, it flowed onto our flat easement, puddled, overflowed and ran down hill to the neighboring, undeveloped, privately owned parcel. It then continued to the edge of our easement road and travelled down the roadside ditch until it reached a storm water culvert traversing the road and continued across private land until it may have reached West Creek. 	Y	edge of our easement road and travelled down the roadside ditch 	0	0	NONE	1000	0	Drainage Conveyance System that discharges to surface water; Unpaved Surface		Flat easement behind house flowing downslope to private undeveloped parcel, then to edge of easement road and on to other side of easement road on same parcel.	Y	37.64927	-119.72436	37.64927	-119.72436	37.64894	-119.72412	37.64857	-119.72482	06/09/2024 11:30	The actual amount of total flow calculated using well water flow to the subdivision, and influent flow to the wastewater plant, and the time in hours that the overflow occurred, the most accurate amount of overflow is 25,904.2 gals. The amount that may have entered the creek is impossible to ascertain, due to the large amount of  forested ground and the distance between the spill origination point and the waterway.	 From the initial spill call to the time flow was completely restored minus the time flow was temporarily restored by manually rodding plug area.	Collection System Maintenance Failure (specify below); Root Intrusion	The sewer main had clogged due to root intrusion and a large amount of grit and rocks that had accumulated. in a section of pipe that has formed a  belly  in the sewer main. To my knowledge, the main has never been flushed/cleaned due to lack of resources.	Gravity Mainline		Other (specify below)	Transite, (Asbestos/Concrete)	57	Minimal impact on the public, and grounds.	N	Cleaned Up (specify below)	Cordoned off entire area, sanitized using chlorine bleach solution, cleaned up any solids accumulation.	Dug a small trench to rout spill onto easement bench and to contain spill to as low a surface area as possible.	Repaired Facilities or Replaced Defect		 We removed and replaced 14ft. of 6in. sewer main that had clogged due to root intrusion and a large amount of grit and rocks that had accumulated.  We have sampled the stream both up and downstream and are awaiting results. Although there is no public access in the area,  we have also cordoned off the spill area to limit any possible access while we perform disinfection, cleanup activities.  	We will visually inspect (camera) this section of sewer main annually at a minimum. Beginning March 2025	06/17/2024 11:20	sewer main  had clogged due to root intrusion and a large amount of grit and rocks that had accumulated. no flushing of this line had ever occurred.	Y	Spill MAY have entered West Creek. We have sampled up, and downstream and are awaiting results.	06/18/2024 11:53	West Creek	Stream/Creek		Very Small Snow/Rain Runoff creek.	NONE	Other (specify below)	Spill occurred on a single residence, and undeveloped land, with no public access.	none	0	N	Y	50ft upstream from perceived are of possible water contact, and 175ft downstream from perceived area of possible water contact.	Total coliform, and Fecal coliform. 									Spill MAY have entered West Creek. We have sampled up, and downstream and are awaiting results.	
3	3SSO10267	Active	Freedom Co Sanitation District CS	Freedom CSD	895247	1.2	Certified	Ramon Sandoval	Assistant Superintendent 	12-JUN-24	20-JUN-24	20-JUN-24	Category 1 Spill	Littleway Lane and Roe Avenue	06/08/2024 23:09	06/08/2024 23:26	06/08/2024 21:10		-		Spill appeared out of MH FA57 located on Littleway Lane and Roe Avenue	36.95967	-121.76197	Manhole	Not applicable	Not applicable	528	The spill path was approximately covered an area 365 feet downstream of MH FA57 into the storm drains that connect to a 48-inch reinforced concrete pipe that outfalls to a detention basin.  See attached photographs	Y	See attached drainage plan titled Los Arboles Pump Station Drainage Improvements	528	0	The drainage conveyance system connects to a 48-inch reinforced concrete pipe that outfalls to a detention basin	483	491	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		From manhole FA57 to paved surface area 365 feet downstream entering two storm drains that made its way to a drainage conveyance system. total distance from manhole FA57 to drainage system is 365 feet.	Y	36.95962	-121.76211	36.95954	-121.76088					06/08/2024 23:55	Supervisory Control and Data Aquisition was used to determine flow that didn't reach downstream Trembly lift station during the duration of the spill time. On an average Weekend Trembly pump station cycles 19 times between 0119PM to Midnight. On 6/8/24 it only cycled 9 times during the time the blockage formed (upstream of the station) from 0119PM to midnight.  Trembly pump station pumps 526 gallons.  44 gallons are received from a gravity collection system. 526-44= 482 gallons. 482x10= 4,820 gallons backed up in the collection system.	Based on residents' interview from address 149 Roe Avenue, Mrs. Tejeda arrived home at 6/8/24 @ 0830PM and didn't see the spill as active. At 6/8/24 @ 0930PM when she walked outside of her house, she witnessed the spill being active coming out of manhole FA57. Based on the distance it would have traveled downstream to the drainage conveyance system, I have elected to say that the spill start time was 0910PM. On-call responders arrived at 1126PM, at 1155PM pumps were shut off at Los Arboles pump station upstream from manhole FA57 to stop overflow. Spill stop time 6/8/24 @ 1155PM.	Construction Diversion Failure		Gravity Mainline		Vitrified Clay		64	Spill impacted paved surface area on Littleway lane between Roe Ave to Dutchman Street, entering two storm drains and making its way into a drainage conveyance system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	 	Responders placed absorbent pads near the storm drains to contain spill from entering storm drains, washed down and vacuumed out affected storm drains, vacuumed puddled sewage that settled in potholes on the road. Vacuumed approximately 1,500 gallons of liquid from drainage conveyance system. 	Plan Rehabilitation or Replacement of Sewer		Contractor installed two bypass pumps and added 24hr staff to monitor bypass equipment.	Contractor is currently replacing this segment of pipe with PVC as part of the Freedom phase 2 project.	06/09/2024 08:30	Contractor removed manhole structure FA65 to rehab manhole structure and shore for boring operation. Contractor temporary connected sewer pipes with corrugated pipe material. A blockage was formed and caused sewage to back up in shoring trench area an upstream manhole.	N			Other surface waters. Reference key# G3C053500000000	Stream/Creek		Seasonal creek drainage conveyance system.	None.	Other (specify below)	None.	County of Santa Cruz	0	N	Y	Water samples were collected at the reference key # G3C053500000000	See Attached report.										
1	1SSO10037	Active	Healdsburg City CS	Healdsburg City	895250	1.2	Certified	Robert Alan Scates	City of Healdsburg Water/Wastewater Superintendent	13-JUN-24	24-JUN-24	24-JUN-24	Category 1 Spill	Piper St at Rec Park	05/28/2024 07:41	05/29/2024 11:00	05/28/2024 07:00	06/11/2024 14:44	24-3325		Buried 6-inch cast iron gravity sewer main passing through a large underground storm culvert had an offset allowing leakage into the storm culvert. Leak was noticed by City staff on 5/28/24 due to unusual odor in the storm drain. Investigation began, contractor obtained. Leak was identified/verified as Category 1 on 6/10/24 using CCTV. Repairs made promptly on 6/11/24 by City staff. No measurable flow/volume in storm drain at time of response and mitigation. 	38.614	-122.863	Gravity Mainline; Other Sewer System Structure	Separate storm drain culvert. 		110	At time of response, spill appeared to be contained in the storm culvert, absorbed into sediment and dirt in the bottom of the culvert. No observed flow or definite volume inside of culvert or discharged to surface water. 	Y	Underground storm culvert running adjacent to the gravity sewer main. 	0	110	No identified discharge to surface water. Spillage absorbed by dirt and sediment in immediate area. 	110	0	Drainage Conveyance System that discharges to surface water		Buried 6-inch cast iron gravity sewer main passing through a large underground storm culvert had an offset allowing leakage into the storm culvert. Leak was noticed by City staff on 5/28/24 due to unusual odor in the storm drain. Investigation began, contractor obtained. Leak was identified/verified as Category 1 on 6/10/24 using CCTV. Repairs made promptly on 6/11/24 by City staff. No measurable flow/volume in storm drain at time of response and mitigation. 	Y	38.614	-122.863							06/11/2024 14:40	Notes from field crew, guidance from volume estimation computations in the SERP. 	Wet stain depths and areas with intermittent flow from line offset. Time based values and best estimate for duration of spill. Very limited information as entire spill was underground, no flow observed. 	Pipe Structural Problem/Failure - Controls		Gravity Mainline		Cast Iron		113	Impact was some odor in vicinity of storm drain. At time of response, spill appeared to be contained in the storm culvert, absorbed into sediment and dirt in the bottom of the culvert. No observed flow or definite volume inside of culvert or discharged to surface water. 	N	Restored Flow		Upon verification of spill, staff excavated spill area near storm culvert, repaired faulty sewer pipe, cleaned immediate area, monitored for follow-up spills, properly covered repair area. Clean up hampered by spill area being inside storm culvert inaccessible to cleaning equipment or staff. Area was noticeable drier following repair. No flow from vicinity. Spillage contained in dirt and debris in storm culvert. 	Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect		Future project to include replacement of sewer line from culvert to nearest manhole, for proper fall. 	TBD	06/11/2024 15:00	Maintenance staff working in area noticed slight unusual odor from storm drain near Rec Park. Realized odor was from a few possible different causes. Hired local contractor to CCTV the area to find possible cause. Determined sewer line issue, an old 6-inch cast iron sewer main passing through a large underground storm culvert, which had an offset near the bulkhead of the culvert, causing some spill when sewer line was full. No flow noticed during monitoring, just a wet stain, and staff immediately coordinated and performed repair. Area was monitored to determine success of repair, which was concluded the following day. This section of sewer main is anticipated to be fully replaced as soon as budget will allow. 	N			Russian River	Other (specify below); River	Spill flow did not appear to reach receiving water. 	Flowing river	None known	Other (specify below)	No public access impact	NA	0	N	N												
8	8SSO10569	Active	East Valley Water District CS	East Valley Water District	895266	1.1	Amended	Patrick Milroy	Operations Manager		14-JUN-24	14-JUN-24	Category 1 Spill	Sterling Natural Resource Center	06/13/2024 17:30	06/13/2024 17:35	06/13/2024 17:30	06/13/2024 23:00	24-3394	27-JUL-24	Wastewater Treatment plant lost power causing plant failure and  back up.  34.113948, -117.252497	34.113948	117.252497	Manhole	None	None	1800000		Y	Storm drain catch basin in street	0	1800000		1800000	0	Drainage Conveyance System that discharges to surface water		Power fail at wastewater treatment plant caused manhole back up.  34.113948, -117.252497	Y	34.113948	117.252497							06/13/2024 23:00	Estimate 5000 gallons per minute for 6 hours for a total of 1,800,000	Calls and visual. 	Pump Station Failure - Power		Pump Station - Power		Other (specify below)	No pipe failure	1	wastewater manhole overflowed into storm drain catch basin	N	Restored Flow		Clean up on asphalt, curb and gutter occurred, but not able to clean out storm drains just flushed clean water. 	Other (specify below)	Power restored	Power was restored, back up generator is being diagnosed. 	Underway soon as possible. 	06/13/2024 23:00	Power fail at wastewater treatment plant	N		06/14/2024 23:00	Storm drain leads to Wash	Wash		Storm drain catch basin leads to wash. 	None	Public Closure		Flood Control	0	N	N												
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	895273	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		20-JUN-24	20-JUN-24	Category 2 Spill	8015 West Hollywood Boulevard	06/15/2024 10:00	06/15/2024 10:00	06/15/2024 10:00	06/15/2024 17:35	23-3422		Sewer Overflow.  34.101316  -118.364609	34.101316	-118.364609	Manhole			11851	Sanitary Sewer Overflow.	N	An estimated that approximately 11,851 gallon of sewage spilled out of the sewer as a result of the object in the sewer line. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system. 	0	0			11851	Paved Surface		34.101316   -118.364609	Y	34.101316	-118.364609							06/15/2024 12:03	Spill flowrate and volume determination based on flowout pickhole or opening  Spill flowrate and volume determination based on flow from around the ring of a MH cover  	Spill flowrate and volume determination based on flowout pickhole or opening Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening4inches Flowrate per pickole/opening (gpm)4gpm # of pickholes/openings1 Total flowrate (gpm)4gpm Duration of spill (minutes)123minutes Total flow (gallons)500gallons Spill flowrate and volume determination based on flow from around the ring of a MH cover Diameter of MH27inches Gap between Frame and cover0.125Based on 1/8  gap Height of water around Cover4inches Flowrate from ring/gap (gpm)92gpm Total flowrate (gpm)92gpm Duration of spill (minutes)123minutes Total flow (gallons)11,351gallons TOTAL OVERFLOW Total flow (gallons) (Pichole + Gap)11,851gallons 	Other (specify below)	Object In Line.	Gravity Mainline		Vitrified Clay		70	On Saturday, June 15, 2024 at 10:00 AM, LA Sanitation and Environment�s (LASAN) Clean Water Conveyance Division (CWCD) was performing routine maintenance at 8015 West Hollywood Boulevard (TG 593-B4). The CWCD crew at the incident location determined that the 10-main line sewer servicing the referenced area was spilling due to a blockage, which was attributed to a tool being stuck.  The crew proceeded to remove the blockage and the backup ceased at 12:03 PM; all necessary clean-up was then performed.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow		Approximately 11,851 gallons of sewage flowed from the sewer as a result of the blockage. The crews were able to establish containment and subsequently the entire back up amount was returned to the sewer system.	Adjusted Schedule/Method of Preventive Maintenance; Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect		As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	06/15/2024 12:03	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	N		06/15/2024 12:03										N													
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	895280	1.1	Amended	Kent Vian	Asst. Deputy Director		03-JUL-24	03-JUL-24	Monthly Category 3 Spill	NOT-40201116730- 5450 UNIVERSITY AVE.	06/14/2024 13:28	06/14/2024 14:00	06/14/2024 13:27				THE SPILL FAILURE POINT WAS IN THE MAIN. THE SPILL APPEARANCE POINT WAS FROM LATERAL EQ #310975769 NORTHWESTBOUND ON 5450 UNIVERSITY AVENUE.	32.74859	-117.07777	Lateral Clean Out (Private)	N/A	N/A	208	THE EXTENT OF THE SPILL BOUNDARIES WAS THE SPILL EXITED A CLEANOUT, HEADED SOUTH, ENTERING THE CURB AND GUTTER, THEN THE SPILL HEADED EAST INTO A STORM DRAIN, AND THEN SOUTH INTO CHOLLAS CREEK OPEN SPACE.	Y	THE STORM DRAIN CONVEYANCE SYSTEM WAS A 30  CONCRETE UNDERGROUND PIPELINE THAT CONVEYED WATER TO CHOLLAS CREEK OPEN SPACE.	150				150	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface	N/A	THE EXTENT OF THE SPILL BOUNDARIES WAS THE SPILL EXITED A CLEANOUT, HEADED SOUTH, ENTERED THE CURB AND GUTTER, THEN THE SPILL HEADED EAST INTO A STORM DRAIN, AND THEN SOUTH INTO CHOLLAS CREEK OPEN SPACE.	Y	32.74532	-117.07716							06/14/2024 14:19	VISUAL CALCULATED METHOD.	SPILL START TIME WAS DETERMINED BY WHEN DISPATCH RECEIVED THE CALL FROM THE CUSTOMER REPORTING THE SPILL, AND THE END TIME WAS DETERMINED BY WHEN CREWS VISUALLY SAW THE SPILL STOP.	Root Intrusion	N/A	Gravity Mainline	N/A	Vitrified Clay	N/A	72	IMPACTS OF THE SPILL WERE TO THE STREET, CURB AND GUTTER, STORM DRAIN AND CHOLLAS CREEK OPEN SPACE.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	CREWS WASHED DOWN THE SPILL AND COLLECTED THE WATER DOWN STREAM USING A COMBONATION TRUCK.	CREWS CONTAINED THE SPILL USING A COMBINATION TRUCK UPON ARRIVAL, AND CREWS WASHED DOWN THE SPILL AND COLLECTED THE WATER DOWNSTREAM USING A COMBINATION TRUCK.	Inspected Sewer Using CCTV to Determine Cause	N/A	NONE AT THIS TIME.		06/14/2024 16:00	THE SPILL CAUSE WAS ROOTS 195  DOWNSTREAM FROM MANHOLE # 165.		NO	06/18/2024 11:26														N/A	NONE AT THIS TIME.	NONE AT THIS TIME.	NONE AT THIS TIME.	INSPECTED THE MAIN USING CCTV TO DETERMINE THE CAUSE.	NONE AT THIS TIME.	NONE AT THIS TIME.	NONE AT THIS TIME.	NO	
7	7SSO10535	Active	Coachella Valley Water District CS	Coachella Valley WD	895299	1.1	Certified	LUIS TORNER	WASTEWATER OPERATIONS MANAGER		18-JUN-24	18-JUN-24	Monthly Category 3 Spill	IRONWOOD COUNTRY CLUB	02/26/2024 11:30	02/26/2024 12:17	02/26/2024 12:17				VIEW ATTACHED	33.6887202	-116.3895517	Manhole		PRIVATE EASEMENT	800	VEW ATTACHED	N						0	Unpaved Surface		UNPAVED DRIVEWAY	Y	33.6887202	-116.3895517							02/26/2024 12:17	MEASURED VOLUME	VOLUME FORMULA	Damage by Others Not Related to Collection System Construction/Maintenance; Root Intrusion		Manhole		Vitrified Clay		46	VIEW ATTACHED	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow		VIEW ATTACHED	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	REMOVE ROOT BLOCKAGE AND NOTIFIED HOMEOWNER OF CAUSE	VIEW ATTACHED		02/26/2024 12:17	VIEW ATTACHED		N/A	02/26/2024 12:17														N/A	NONE	N/A	N/A	N/A	N/A	N/A	N/A	N/A	
4	4SSO11423	Active	Long Beach Water Dept. CS (SSO program)	Long Beach City, Water Dept	895301	1.3	Certified	Jennifer Rojas	Senior Director 	18-JUN-24	26-JUN-24	26-JUN-24	Category 2 Spill	3300 Linden Ave Long Beach CA.	06/15/2024 12:45	06/15/2024 13:15	06/15/2024 11:58	06/15/2024 14:20	24-3421		The spill originated from two city sewer manholes, labeled as H22-SMH-029 and H22-SMH-028, located at 3300 Linden Ave.	33.81709	-118.18612	Manhole			1170	Sewage overflowed from two city sewer manholes, traveled down the street curb and gutter and entered the Long Beach storm drain catch basin. From there, it traveled down the storm drain pipe into a storm drain manhole, where it was contained and fully recovered.	Y	Concrete storm drain pipe.	1000	0			1170	Drainage Conveyance System; Street/Curb and Gutter (2 3)		The spill entered the storm drain catch basin pipe , which runs west into a new storm drain catch basin located at 530 E. 33rd Street, where it was contained and all recovered by Ocean Blue Contractors.	Y	33.81732	-118.18684							06/15/2024 13:55	The Fire Department contacted the Long Beach Utilities dispatch about a water main break recording the time at 11:58 a.m. Sewer Operations was notified at 12:45 p.m. and immediately dispatched a crew to the location.  The Spill appeared from 2 city sewer manholes, It began at 11:58 a.m. at a rate of 5 gallons a minute from manholes 1 and 2.  Combined, this equals to 10 gallons per minute. When the sewer crew arrived and broke the stoppage at 13:55 the spill lasted for 117 minutes at a rate of 10 gallons per minute. Therefore, the total spill volume at the end was 1170 gallons. 	The Long Beach Fire Department contacted LBU dispatch to report a water main break, recording the time as 11:58 a.m. 	Debris-Rags; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		91	The spill had minimal impact on residents. Although sewage entered the city streets, gutters, and storm drains. it was fully recovered and cleaned up.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	Long Beach Health Department	Long Beach Utilities was dispatched to respond to a sewer spill. They relieved the stoppage with a stoppage Nozzle and, upon arrival sandbagged the area to contain the spill at the street curb and gutter and the Long Beach Storm drain catch basin. Ocean Blue Environmental fully cleaned and recovered the spill from the street and the conveyance system. 	Inspected Sewer Using CCTV to Determine Cause		A grease blockage occurred in the sewer main line.  The line was thoroughly cleaned and televised. All grease was removed.	The significant milestone for the corrective action includes the pipeline CCTV Inspections, completed on 6/18/2024. The pipeline inspection aims to evaluate the sewer system's condition and identify any potential problems or blockages. With the help of CCTV inspection and continuous cleaning, the grease was removed. 	06/15/2024 16:50	A post-CCTV inspection of the mainline was performed, and grease in the city mainline was discovered. Our cleaning crews used hydro-jetting to clear the sewer main and remove the grease. The CCTV Inspection revealed Grease being the main cause of the sewer mainline stoppage.	N												N													
2	2SSO10172	Active	Ross Valley Sanitary District CS	Ross Valley SD	895306	1.2	Certified	Paul Bruemmer	O&M Manager 	18-JUN-24	27-JUN-24	27-JUN-24	Category 1 Spill	137 Poplar Dr., Kentfield	06/14/2024 09:26	06/14/2024 09:40	06/14/2024 09:26	06/14/2024 10:21	24-3400		The spill originated approximately 83' downstream of MH-k261.030, where a crack and broken pipe joint allowed sewer to exit the 6  VCP sewer main and appear in an unnamed creek. 	37.96015	-122.53998	Gravity Mainline			44	The spill originated approximately 83' downstream of MH-k261.030, where a crack and broken pipe joint allowed sewer to exit the 6  VCP sewer main and appear in an unnamed made-made storm water conveyance system. The sewer main is directly in the creek at this point. The spill went directly into the flow in the conveyance system and was quickly diluted and washed downstream. 	Y	The drainage conveyance system was a man-made drainage basin that channeled storm water to a downstream culvert system. 	0	44	The spill directly discharged into the flow of the conveyance system where it was immediately diluted and carried further downstream into the underground culvert system, which ultimately ends .70 miles @ Corte Madera Creek. 	44	0	Drainage Conveyance System that discharges to surface water		The spill destination was into an unnamed stormwater conveyance system approximately 80' downstream of MH K261.030. 	Y	37.96015	-122.53998							06/14/2024 11:26	Volume estimations were calculated based on several methods, eyeball estimation, Flowrate, and calculating the diurnal flow rate. 	Witness account 	Pipe Structural Problem/Failure - Controls		Gravity Mainline		Vitrified Clay		87	There was no impact to the spill. 	N	Mitigated Effects of Spill (specify below); Property Owner Notified		After staff confirmed the spill was entering the stormwater conveyance system through a break in the sewer main, a repair crew was dispatched to set a point repair to seal the defective portion of main. A combination truck was set up at MH K261.030 upstream of the break, and all flow was sucked up to prevent any flow entering stormwater system while the repair was set. 	Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect		The spill was caused by a crack in the VCP main. The defect was fixed with a cured in place fiberglass patch. This portion of the main happens to be in the flow of the stormwater conveyance system. Operations staff is recommending the engineering department look at moving main out of the stormwater flow or upgrading piper material. 	6/14- 9:25am spill reported 9:40am- staff arrived 10:30am- Combo truck was dispatched 11am- Combo truck started sucking up all flow, ending all discharge from spill @ 11:26am 3:30pm- All point repairs were in place and set, effectively restoring pipe integrity and ending spill response.   	06/14/2024 15:30	The cause of the spill was identified through CCTV inspection of the main. The cause of the spill resulted from a crack in the VCP main. 	N			Corte Madera Creek 	Stream/Creek		Corte Madera Creek is the outfall to most stormwater conveyance drainage systems in the area of this spill. Corte Madera Creek is approximately .68 miles away from the spill. 	No impacts on aquatic life. 	Other (specify below)	N/A	N/A	0	N	N												
5F	5SSO10772	Active	Twain Harte CSD CS	Twain Harte CSD	895317	1.1	Certified	Lewis Giambruno	Operations Manager		18-JUN-24	18-JUN-24	Monthly Category 3 Spill	Rear of  23013 Sierra Dr	06/06/2024 09:55	06/06/2024 10:15	06/05/2024 14:45				Spill was approximately 3-4' wide and 45' long.	38.039892	-120.236469	Gravity Mainline			300	Spill was approximately 3-4' wide and 45' long.	N						50	Unpaved Surface		Spill destination was approximately 45' away from manhole.	Y	38.03994	-120.23635							06/06/2024 10:40	Approximation based on spill GPM, size of footprint and number of homes serviced by line.	Start date and time was approximated visually by the flow, size of spill and number of homes serviced by line.	Root Intrusion		Gravity Mainline		Vitrified Clay		59	contaminated soil was removed.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow		Spill was contained upon arrival. Contaminated soil was removed and sani-clean was used	Adjusted Schedule/Method of Preventive Maintenance		Line to be CCTV'ed and evaluated for repairs.		06/06/2024 14:30	Line still needs to be CCTV'ed to determine extent of root intrusion.		We will CCTV line.	07/31/2024 16:00														No	We will add location to hotspot list.	The line will be jetted twice a year.	To be determined.	Not yet completed.	To be determined.	Not yet completed.	None.	We will CCTV line.	
4	4SSO10449	Active	Thousand Oaks Municipal Service Center	Thousand Oaks City 	895331	1.1	Certified	Patrick McCulloch	Utilities Maintenance Supervisor		24-JUN-24	24-JUN-24	Monthly Category 3 Spill	2655 Hillcrest Drive Newbury Park, Ca 91320/Back of shopping center parking lot	06/18/2024 13:30	06/18/2024 13:30	06/18/2024 13:30				The spill surfaced from a single manhole in private parking lot behind shopping center at 2665 Hillcrest Drive, Newbury Park, Ca 91320. Refer to Spill Location photo in attachments. 	34.18829	-118.93327	Gravity Mainline; Manhole	Sewage surfaced from collection system manhole. 	None	135	The spill was mostly contained around the manhole that it surfaced from. Small amount traveled down the curb and gutter to catch basin. Catch basis connected to storm drain well. Photos of spill boundaries in attachments. 	Y	Approximately 20 gallons entered a catch basin connected to a storm drain well. This well is designed to fill to a certain level before discharging into the storm channel. Well never reached the discharge level.	20				135	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Other (specify below); Paved Surface; Street/Curb and Gutter (2 3)	Storm drain well system. 	Spill surfaced from manhole and contained around manhole with dirt and sandbags. Small amount went down curb and gutter to catch basin that connects to storm drain well a short distance away (Approximately 10 feet). See attachments photos that show spill boundary/spread. 	Y	34.18829	-118.93327							06/18/2024 13:45	Calculated spill volume with estimated flow out of manhole cover in place. Estimated height of spout at 1 inch or 9 GPM. Multiplied 9 GPM by 15 minutes (restored normal flow) to get 135 gallons. Additionally, used visual of spill and well volume of liquid to determine spill amount. Estimate is probably on the higher side. 	Spill start time is when staff that was nearby was notified by resident who just noticed sewage surfacing from manhole structure. Visual of spill indicated that it just began overflowing. Spill end time was when staff broke the stoppage with hydro combination truck and removed RV drain hose. 	Damage by Others Not Related to Collection System Construction/Maintenance; Inappropriate Discharge to Collection System; Vandalism (specify below)	RV drain hose dumped/discarded into collection system. 	Gravity Mainline; Manhole		Polyvinyl Chloride (PVC)		21	Spill temporarily impacted private shopping center and storm drain conveyance system. City staff cleaned and recovered impacted area.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		City staff responded and contained the spill area using a dirt berm and sandbags. They broke the stoppage using a hydro combination truck, which pulled back an RV drain hose. Staff removed the RV drain hose from the manhole with hand tools. They then vacuumed and cleaned the contained spill area. Next, staff investigated the storm drain conveyance system and found that the catch basin connected to a storm drain well that never filled to the outfall level towards the storm channel. City staff vacuumed out all liquid and debris from the well and proceeded to clean and vacuum the impacted areas to recover the rest of the spill.  The collected sewage was returned to the wastewater collection system, resulting in the full containment of the spill. 	Other (specify below)	Installing straps over manhole covers in easement/parking lot. 	Scheduled manholes to be secured with straps to reduce/prevent residents from accessing sewer system. Work completed on 6/24/2024. See Manhole Repair Work Order in attachments. Work order has pictures of repair. 		06/18/2024 15:00	Spill caused by RV drain hose that had become lodged in sewer mainline. Suspected cause is illegal dumping into manhole. Now evidence of party that caused blockage. Performed CCTV inspection of City mains, and PVC pipe had no issues. 		No ongoing investigations. 	06/18/2024 15:00														No action taken. Unable to identify responsible party for illicit discharge. 	No change to maintenance. Added second level of security with manhole straps. 	Just cleaned in February of this year. No increased scheduled maintenance. Added straps over manhole covers to the three manholes in back parking lot to prevent illegal dumping. 	6/24/2024 added straps over covers to three manholes in parking lot easement to prevent dumping. 	CCTV inspection showed no defected assets. Repaired/added straps to secure manhole covers. 	N/A	See attachment Manhole Repair Work Order. 	No spill response modifications. 	No ongoing investigations. 	
2	2SSO10104	Active	Ccsf - San Francisco Airport CS	CCSF - San Francisco Airport	895347	1.1	Certified	Jennifer Acton	Director of Maintenance		25-JUN-24	25-JUN-24	Monthly Category 3 Spill	Gates D9/D10 Sewage Ejector Pump Station	05/09/2024 05:38	05/09/2024 05:40	05/09/2024 05:30				Sewage ejector pump station is located on the airfield operations area between Gates D9 and D10.  Additional appearance points included interior floor drains inside the building within tenant storage areas.	37.61761	-122.38112	Inside Building or Structure; Other Sewer System Structure; Pump Station	exterior in-ground grease interceptor and Interior sanitary floor drains inside building	Multiple interior sanitary floor drains inside building	175	Spill overflowed the pump station wet well and in-ground grease interceptor onto the paved surface and flowed both south and north between Gates D8 and D10.  Sewage overflowed from interior sanitary floor drains but did not exit the building.	Y	Spill affected one storm drain catch basin, but did not flow downstream.  Sewage was contained at the bottom of the catch basin.	1				175	Building or Structure; Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface		Spill overflowed the pump station wet well onto the paved surface and flowed both south and north between Gates D8 and D10.  Sewage overflowed from interior sanitary floor drains but did not exit the building.	Y	37.61737	-122.38104	37.61791	-122.38124					05/09/2024 08:15	Spill volumes were calculated using field measurements collected by spill team and additional information provided 	Information provided by Airport personnel responding to the spill incident	Pump Station Failure - Controls		Pump Station - Controls		Other (specify below)	Not Applicable, not a pipe.  Failure was due to a pump station control failure.	0	Spill impacted the paved surface on the airfield operation area and interior tenant storage areas inside the building.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Airport Duty Manager, Airport Fire Department, Airport Facilities Departments and Airport Spill Team responded to the spill incident.  Airport Plumbing and Mechanical Maintenance performed trouble shooting to determine cause.  Airport Mechanical Maintenance performed repairs to pump station and restored flow.  Airport Custodians cleaned the impacted areas inside the building.  Airport scrubbing contractor cleaned the impacted paved surface.  Airport Plumbing crew used vactor truck to clean the affected storm drain catch basin.	Repaired Facilities or Replaced Defect		Pump station faulty parts were replaced by Airport Mechanical Maintenance department and flow was restored to pump station.		05/10/2024 15:30	Investigation by Airport Facilities determined that the pump station switch and float were faulty.  		NA	05/09/2024 15:30														NA	NA	NA	NA	Pump station faulty parts were replaced by Airport Mechanical Maintenance department and flow was restored to pump station.	NA	NA	NA	NA	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	895348	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	20-JUN-24	26-JUN-24	26-JUN-24	Category 1 Spill	6800 Gunn Drive, Oakland Ca	06/18/2024 15:24	06/18/2024 18:15	06/18/2024 16:30		-		Sewage was seeping through the ground and flowing down on the gutter to the nearest storm drain.	37.83492	-122.19068	Other Sewer System Structure	Sewage was seeping through the ground and flowing down on the gutter to the nearest storm drain.		120	Sewage was seeping through the ground and flowing down on the gutter to the nearest storm drain.	Y	21  underground storm line that flows to Sausal creek.	0	120	21  underground storm line that flows to Sausal creek.	120	0	Paved Surface; Street/Curb and Gutter (2 3); Surface Water		Sewage was seeping through the ground and flowing down on the gutter to the nearest storm drain.	Y	37.83492	-122.19068							06/18/2024 19:30	1 GPM x 120 Minutes = 120 Gallons spilled.	Start time was based on eyewitness account. End time was based on when construction crew installed a temporary line to prevent sewage coming out of the ground.	Pipe Structural Problem/Failure - Installation		Gravity Mainline		Other (specify below)	8  Corrugated pipe (CMP)	125	Sewage was seeping through the ground and flowing down on the gutter to the nearest storm drain. 120 gallons entered the storm drain. and flowing to an underground called Sausal Creek.	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow	Staff washed the affected areas on the ground.	Staff washed the affected areas on the ground.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect		Sewer line was temporarily repaired for now, W.O. 1534264. Line was placed CIP, W.O 1474878. Adjusted high frequency maintenance program to three months hydro, W.O. 1474300.	Sewer line was temporarily repaired for now, W.O. 1534264. Line was placed CIP, W.O 1474878. Adjusted high frequency maintenance program to three months hydro, W.O. 1474300.	06/19/2024 21:00	CCTV found corrosion in the corrugated metal pipe. The sewage was seeping through the ground.	N			Sausal creek 	Stream/Creek		Stream.	None.	Other (specify below)	None.	N/A	0	Y	N												
9	9SSO10647	Active	City of Coronado CS	Coronado City	892317	2.2	Certified	Kim Godby	Utilities Supervisor	24-JAN-24	24-JUN-24	24-JUN-24	Category 1 Spill	Embarcadero Park	01/22/2024 13:25	01/22/2024 17:30	01/22/2024 11:30	01/22/2024 21:37	24-0391	24-JUN-24	Severe rain event on 1/22/24 within the San Diego region.  From Transbay Pump Station, Coronado system crosses the San Diego Bay and connects to San Diego Metro system on Kettner Blvd, adjacent to Embarcadero North Park. The spill manhole (SD0003) is located within the Embarcadero North Park, approximately 20' from the Embarcadero Marina waterway.  The distance between the the spill manhole and connecton to San Diego Metro is approximatley 1053'.	32.70752	-117.169208	Force Main; Manhole		Secondary manhole SD0002 downstream of SD0003	380551	Spill from Coronado manhole SD0003 overflowed onto the sidewalk approxmiately 50', onto the grassy area, down the rock embankment and into the Embarcadero Marina waterway, as well as into the parking lot and catch basin into the San Diego Bay.  Spill from SD0002 overflowed the sidewalk into a curb inlet discharging to San Diego Bay and also overflow the sidewalk, grassy area down the rock embankment into the Embarcadero Marina waterway. 	Y	Embarcadero North Park parking lot storm drain inlet, catch basin and pipes discharge to the San Diego Bay. 	0	0	San Diego Bay and Embarcadero Marina via overflow rock embankment and through storm inlet and catch basin.    Clarification to questions 8 & 12: see Technical Report for consultant evaluation of wastewater spill volume (380,551 gallons) versus total spill volume (1,227,585 gallons).	380551	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		Embarcadero North Park (32.70752,-117.169208), parking lot, Embarcadero Marina waterway and San Diego Bay	Y	32.70829	-117.16911	32.70747	-117.16899	32.70798	-117.17032	32.70666	-117.16943	01/23/2024 01:00	High water alarm, station monitor Fleetzoom, ADS flow meter, video and pictures, email.   	High water alarms, email notification date/time of visual verification of active spill, Fleetzoom ADS flow meter, video and pictures. 	Other (specify below)	Defer to San Diego Metro system capacity and operating system constraints during 1000 year storm. 	Other (specify below)	Defer to San Diego Metro System capacity and operating system constraints during 1000 year storm. 	Ductile Iron; Other (specify below)	Although the HDPE pipe is connected to the spill appearance manhole SD0003, the failure occured wihtin the San Diego Metro System - due to 1000 year storm event capacity constraints. 	14	Park closure, pedestrian walkway closure, adjacent receiving water closure (San Diego Bay & Embarcadero Marina). Contracted with Patriot Environmental for land cleanup. 	Y	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow		Park closure, barricades, notification/coomunications with other agencies (County of San Diego, SD Regional Water Board, Cal OES, City of San Diego, San Diego Unified Port District).  Dispatched Patriot Enviornmental for area sanitation and cleanup/recovery.  Spill area and parking lot closed. 	Other (specify below)	Defer to San Diego Metro system station 2 maintenance/repair schedule. 	Defer to City of San Diego for station 2 repair scheudle.  Spill notificationa nd response coordination meetings occured with San Diego and Port District.  Commitment to maintain open communication and continually update response coordiantion and contact lists. 	Coordination meetings occured with San Diego and the Port District. Commitment continues to coordinate, update as needed. 	01/23/2024 18:00	Discussion with San Diego identified capacity constraints during 1000 year storm.  See additional details within the Technical Report.	N			San Diego Bay and Embarcadero Marina	Other (specify below)	Bay and Marina	San Diego Bay and Marina	none observed	Public Closure		County of San Diego - DEHQ	7	N	Y	Sample ID locations EH-540 Seaport Village, Eh-545 Ruocco Park, Eh-150 Embarcadero (NR), see additional sample locations within Technical Report	Total and Fecal Coliforms, Enterococcus										
9	9SSO10647	Active	City of Coronado CS	Coronado City	892318	2.2	Certified	Kim Godby	Utilities Supervisor	24-JAN-24	24-JUN-24	24-JUN-24	Category 1 Spill	Country Club Area	01/22/2024 10:04	01/22/2024 10:04	01/22/2024 12:00	01/24/2024 18:39	24-0449	21-JUN-24	1. 1000 year storm event in the San Diego region.  During the storm, power was lost to dual Parker Storm and Sewer Pump Stations.  Several streets within the Country Club drainage basin were flooded with as much as 18  of rain water, covering several manholes.  Once the system was surcharged, sannitary seeped out through manhole lid pickholes and comingled with flood waters in the streets.  No manhole lids floated.  	32.4138	117.643199	Manhole; Other (specify below)	1. Portable pumps moved Parker area flooded storm water to the nearby Bandel drainage basin.  From Bandel, comingled santitary and storm water flows were discharged to the North Beach outfall.  2.  Flooded Parker station sanitary was partially pumped to North Beach outfall via portable pump.  Additionally, pumper trucks collected sewage from the flooded station and returned it to a downstream sanitary manhole. 	North Beach storm drain outfall - after comingled storm and sanitary flood waters diverter to Bandel Storm Pump Station, comingled flows discharged through storm force main.   	147200	Surcharged system within the Parke drainage area, discharged through two locations - Bandel pump station and via portable pump at Parker connected to storm discharge pipe. 	Y	Portable pumps were staged to move comingled storm and sanitary water to nearby Bandel storm pump station via curb/gutter.  From Bandel, flows were discharged through a force main storm pipe to the North Beach outfall (Pacific Ocean).  From the sanitary flooded Parker dual station, sewage was pumped to the Parker storm force main, discharging to the North Beach storm outfall (Pacific Ocean).  	0	0	Parker area manholes lids and North Beach outfall  Clarification to questions 8 & 12: see Technical Report for consultant evaluation of wastewater spill volume estimate (147200) verus total spill volume (4,252,047).	147200	5000	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		Final spill destination was North Beach storm drain outfall (Pacific Ocean), collected from the Country Club area, Parker sewer pump station and Bandel storm pump station. 	Y	32.4138	117.643199	32.69442	-117.19021	32.69323	-117.18852	32.69301	-117.19105	01/23/2024 22:00	Pump run times/dates (station pumps and portable pumps), Fleetzoom station monitoring, High water alarms, visual observation.	Portable pump curves, station remote monitoring of pump run times/dates, alarm notification, visual observation.  	Rainfall Exceeded Design, I and I (Separate Collection System Only); Surcharged Pipe (Combined Collection System Only)		Other (specify below); Pump Station - Power	1000 year storm event caused capacity constraints within the pump station, dislodging a bolted sewer wet well lid. 	Other (specify below)	Pump station pipes did not fail.  Capacity constraints.   6b. pipes did not fail.  Station age is 26 yrs.	26	Flooded streets and beach closure.  	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Patriot Environmental dispatched for flood relief and spill control.  Immediately following the spill residents were advised of station restoration activities/timelines completed by City crews and contractors.    A replacement station to Parker was under construction at the time of this rain event.  The public continues to be updated on it's progress.  	Diverter comingled storm-sewage waters to North Beach storm drain outfall (Pacific Ocean) to elimate flooded area and to immediately assess and restore Parker storm and sewer station.   Patriot Environmental dispatched to assist in cleanup and station flood removal.  	Other (specify below); Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect	At the time of this event, a new Parker Storm and Sewer Pump Stations were under construction on an adjacent property.  The existing Parker storm and sewer stations will remain active until the new station is in service.  Replacement of electrical components, motors and controls to both storm and sewer stations began immediately after the stations flooded condition was resolved.  The sewer wetwell manhole lid was bolted down with an additional cross bar.   	The sewer wetwell manhole lid was bolted down with an additional cross bar and will remain until the new station is in use - approximately mid-2025.   	Bypass pumps and hoses will remain on site until new station is active. 	01/23/2024 22:00	See Technical Report. 	N			Pacific Ocean	Ocean		Recreational use	None observed	Public Closure	Closure contributed by northerly currents transporting contaminated runoff/sewage from Tijuana River Valley outfall flows.  See closure dates and additional information within the Technical Report for 15e.	County of San Diego - DEHQ	57	N	Y	8th Street & Balboa Ave (Site A), 8th Street mid-block between Balboa Ave and Cabrillo Ave (Site B), 8th Street & Cabrillo Ave (Stie C); EH-050 Loma Ave, EH-060 North Beach/Navy Fence, IB-079 Avenida Lunar, IB-080 Avenida Del Sol; IB-068 Silver Strand -Guard Shack	Total and Fecal Coliform, Enterococcus (Enterolert & ddPCR) See Technical Report - Monitoring section for additional details. 										
9	9SSO10647	Active	City of Coronado CS	Coronado City	893406	2.1	Amended	Kim Godby	Utilities Supervisor	09-FEB-24	21-JUN-24	21-JUN-24	Category 1 Spill	Embarcadero North Park	02/06/2024 11:57	02/06/2024 11:57	02/06/2024 11:30	02/09/2024 18:12	24-0764	21-JUN-24	Manhole SD0003, within Embarcadero North Park	32.70752	-117.169208	Force Main; Manhole			170898	Forcemain manhole SD003 spilled onto pedestrian walkway, oveflowed to the grass, down the rock embankment into the Embaracadero Marina, parking lot, into a storm drain system discharging to San Diego Bay.	Y	San Diego Port District storm drain catch basins to Embarcadero Marina and San Diego Port District curb inlets to the San Diego Bay. Regarding questions 10b and 10c - no spill was recovered from the drainage conveyance system. A low volume, which cannot be estimated, was recovered during power wasing cleanup.   	0	0	San Diego Bay and Embarcadero Marina.  Clarification to questions 8 & 12 regarding calculations of the estimated spill volume is provided in consultant report, dated 3/21/24.  Total spill volume was estimated at 589,305 gallons with 29% being solely wastewater or 170,898 gals. 	170898	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Unpaved Surface		Force main manhole SD0003, located within Embarcadero North Park - spilled onto the pedestrian walkway, parking lot, into the drainage system and into San Diego Bay and Embarcadero Marina.	Y	32.70829	-117.16911	32.70747	-117.16899	32.70798	-117.17032	32.70666	-117.16943	02/07/2024 03:30	high water alarm (SmartCover), station monitoring (Fleetzoom), ADS flow meter, video and pictures.	high water alarm (SmartCover), station monitoring (Fleetzoom), ADS flow meter	Other (specify below)	San Diego Metro System capacity and operating system constraints.	Other (specify below)	San Diego Metro System station 2 operating system challenges and capacity constraints.   	Other (specify below)	Although the HDPE pipe material is connected to the spill appearance manhole, the failure occured within the San Diego Metro System.  The pipe material failure within the San Diego Metro System is unknown.   6b. the spill appearance manhole and pipe is 14 yrs and is unknown at the actual failure location within the San Diego Metro System. 	14	Closed pedestrian walkway, parking lot, San Diego Bay and Embarcadero Marina	Y	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow	Land surface impacts were cleaned/mitigated by Patriot Environemental.  Normal flow resumed after San Diego Metro System resolved. 	Parking lot closed, spill appearance location closed off, contracted with Patriot Environmental to monitor and clean the impacted area.	Other (specify below)	San Diego Metro System capacity and pump station 2 operating system challenge currently 2 are ongoing station repair to resolve capacity and/or pumping constraints	Defer to the City of San Diego for pump station 2 repair schedule.  Spill notification and response coordination meetings occured with San Diego and Port District.  Commitment to revisit discussions to maintain open communication channels. See Technical Report. 	Follow up meeting with City of San Diego and The Port occured in April 2024.  Next meeting is pending. 	02/07/2024 15:16	City of San Diego communicated to Coronado pump station 2 operatiing challenge and follow-on Metro capacity constraint.  Coronado responded to a high-water alarm.  	N			San Diego Bay and Embarcadero Marina	Ocean		San Diego Bay and Embarcadero Marina	none observed	Public Closure		County of San Diego - DEHQ	7	N	Y	EH 540, EH 545 Ruocco Park, EH 150 Embarcadero (NR), see report for additional locations.	Total and Fecal, Enterococcus										
9	9SSO10647	Active	City of Coronado CS	Coronado City	893408	2.2	Certified	Kim Godby	Utilities Supervisor	10-FEB-24	21-JUN-24	21-JUN-24	Category 1 Spill	Embarcadero North Park	02/07/2024 14:03	02/07/2024 15:38	02/07/2024 14:03	02/07/2024 17:30	24-0798	21-JUN-24	Force main manhole SD0003 located in Embarcadero North Park	32.70752	-117.169208	Force Main; Manhole			15300	Spill overflowed onto the pedestrian walkway, over the grass, down the rock embankment into the Embarcadero Marina.    See clarification on question 8 & 12 within the consultant report dated 3/21/24. The estimated total spill volume is 38250 with approximately 40% being actual wastewater equalling 15300 gallons 	N		0	0	Spill appearance manhole SD0003 overflowed to the Embarcadero Marina	15300	0	Paved Surface; Surface Water; Unpaved Surface	Concrete walkway, storm drain catch basin, grassy area, down a rock embankment to the Embarcadero Marina and minor overflow to parking lot that did not enter storm drain inlet.	Force main manhole SD0003 located within Embarcadero North Park - spilled onto the pedestrian walkway, into the Embarcadero Marina. 	Y	32.70752	-177.169208	32.70722	-117.16919	32.70754	-117.16906			02/07/2024 15:30	spill appearance picture, flow meters, high water alarms, station remote monitoring data (Fleetzoom)	high water alarms (SmartCover), ADS flow meter, Fleetzoom, visual observation of time stop	Flow Exceeded Capacity (Separate Collection System Only); Other (specify below)	Defer to San Diego station 2 operating challenges and capacity constraint.	Other (specify below)	Defer to San Diego Metro System for additional details. See 4a. 	Other (specify below)	Spill appearance manhole is connected with HDPE. However, the failure occured within San Diego Metro System. 	14	Closed pedestrian walkway & Embarcadero Marina 	Y	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow	Spill impacts on land cleaned/mitigated.  	parking area closed off, barriers placed around spill point, sand bags placed to control spill discharge area.  Contracted with Patriot Environmental for professional cleanup.	Other (specify below)	City of San Diego to resolve system constraints. 	Defer to City of San Diego for their operating system repair schedule.  City of Coronado, San Diego and Port District met several time to improve notification and response coordination.  Future meeting dates are pending.   	Defer to City of San Diego.   Coordination meetings with City of SD and The Port ioccured in April 2024.   Future meeting dates pending. See 10b.	02/07/2024 14:40	City of San Diego system capacity constraints during minor rain event.	N			San Diego Bay and Embarcadero Marina	Other (specify below)	bay	 Embaracdero Marina	none observed	Public Closure		County of San Diego - DEHQ	11	N	Y	EH 540 Seaport, Eh 545 Ruocco Park, EH 150 Embarcadero (NR), see Technical Report - monitoring section for additional sample sites. 	Total and Fecal Coliforms, Enterococcus										
2	2SSO10103	Active	Castro Valley Sanitary District CS	Castro Valley Sanitary District	895350	1.2	Certified	Roland P Williams	General Manager		20-JUN-24	20-JUN-24	Monthly Category 3 Spill	4746 Ewing Road	05/05/2024 14:00	05/05/2024 14:15	05/05/2024 13:42				Root Blockage in CVSan mainline @ approximately 10 feet downstream of MH16-11.  See Attachment-Blockage in Main	37.7205	-122.08445	Lateral Clean Out (Private)			300	Spill discharged from homeowners cleanout at the front entry way and followed gravity towards south-east corridor of the property, and alongside/down to the rear of property. As sewage arrived into rear of the property, it ran into landscaping, pavemented areas, and swimming pool. See Attachment-Sewage spill path	N						0	Other (specify below); Paved Surface	Landscape, Lawn, and Swimming pool	Sewage discharged from cleanout and ran alongside the side of the house down pathway to backyard and spread out to Lawn, dirt areas and swimming pool. 		37.72071	-122.08404	37.72093	-122.08368					05/05/2024 14:15	Visual Method was used to estimate the Spill volume as well as run time data from a near by pump station located at 4708 Mira Vista Dr.	Spill start time and end time was estimated by when resident called in to CVSan to report, and end time was on arrival, operator visually observed no spill occurring.	Root Intrusion		Gravity Mainline		Vitrified Clay		73	The spill had a big impact on the property and landscaping in the backyard of this residence. Contamination of grass, soil, paved and unpaved surfaces, as well as the swimming pool	N	Cleaned Up (specify below); Restored Flow		CVSan staff responded to this call at 4746 Ewing Rd @ 2:15pm. Contact was made with resident, and documentation was captured. CVSan then set up on MH 16-11 to break the stoppage in reverse due to the location of the blockage being approximately 10feet downstream of this access point. Once flow was restored, CVSan staff returned to property and spoke with resident to coordinate restoration efforts with the property owner. CVSan used BMS-CAT restoration company to perform work and restore the affected areas back to the original condition as it was prior to the spill. Spilled occurred on May 5, 2024, and restoration efforts concluded on June 19, 2024.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		This asset in which this blockage occurred will be placed on a PM cycle to be maintained every 9 months, as it was previously on a 5 year routine maintenance cycle.		06/19/2024 12:00	CVSan staff returned to the asset in which the failure occurred in, to perform CCTV inspection, and confirm cause of blockage. Additional personnel was onsite to perform proper removal of the blockage which was caused by severe root intrusion. 		N/A	05/06/2024 11:59														N/A	This asset will be placed on a Preventative Maintenance Cycle, to be maintained on a 9 month frequency.	Previously on 5 year maintenance schedule and will be changed to 9 month cycle of preventative maintenance.	N/A	CCTV inspection was performed post spill, as well as after heavy cleaning methods to remove obstruction caused by roots to confirm that cleaning method was successful.	N/A	Documentation and tracking is accessible through CVSan's CMMS, Central Square/Lucity.	N/A	N/A	
2	2SSO10103	Active	Castro Valley Sanitary District CS	Castro Valley Sanitary District	895351	1.3	Certified	Roland P Williams	General Manager		20-JUN-24	20-JUN-24	Monthly Category 3 Spill	18764 Carlton Ave	05/30/2024 12:00	05/30/2024 12:12	06/20/2024 11:45				Sewage spilled form homeowners cleanout at 18764 Carlton Ave. Sewage flowed out of cleanout located at the front driveway area, and followed gravity down the reverse sloped driveway into the rear of property and into the backyard. 	37.7085	-122.09642	Lateral Clean Out (Private)			75	Sewage spilled out of cleanout near driveway, and ran down reversed sloped driveway to the rear of the property into the backyard. 	N	N/A					75	Other (specify below); Paved Surface; Unpaved Surface	Dirt/Landscape	Spill was contained on the property and saturated into dirt area located at the rear of the property.	Y	37.70852	-122.09617							05/30/2024 12:42	Spill volume was estimated visually, along with duration of spill, for total of 25 gallons which discharged from the system and saturated into the ground at this address	Time CVSan was called out was the start time and when the blockage was relieved was the end time.	Root Intrusion		Gravity Mainline		Vitrified Clay		70	Sewage impacted this yard by spilling out and saturating into the ground in rear of property.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow		 CVSan hired BMS-CAT restoration company to come out and perform restoration efforts at 18764 Carlton Ave. Clean up efforts was done on May 31, 2024 and completed in one day.	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Asset was previously no on any preventative maintenance cycle, and will be placed on a 9 month preventative maintenance cycle.		05/31/2024 16:00	CVSan staff arrived onsite and spoke with residents at 18764 Carlton Ave, and collected documentation. Additional personnel cleared blockage from MH 3-35. Severe roots were encountered at approximately 100 feet upstream. CVSan staff coordinated restoration operations with resident and called out BMS-CAT company to perform assessment on the day of the spill. Restoration was completed the following day 5/31/24. Asset will be placed on 9 month preventative maintenance cycle. 		N/A	06/04/2024 13:24														N/A	Asset was previously no on any preventative maintenance cycle, and will be placed on a 9 month preventative maintenance cycle.	Previously not on any schedule, will be placed on 9 month PM schedule	N/A	N/A	N/A	N/a	N/A	N/A	
5S	5SSO10938	Active	Easterly CS	Vacaville City DPW	895354	1.2	Certified	Justen Cole	Director Of Utilities	20-JUN-24	08-JUL-24	08-JUL-24	Category 1 Spill	1581 E. Monte Vista Ave.	06/16/2024 15:53	06/16/2024 16:08	06/15/2024 19:00	06/16/2024 17:33	24-3435		1581 E. Monte Vista Ave.	38.36489	-121.96567	Manhole			290	Pictures to be uploaded within the allowed amendment period. For reference, GIS maps showing the length of spill are available in lieu of pictures.	Y	Curb and gutter to a DI that drains into a drainage ditch which leads into another storm drainpipe.	152	138	Spill only reached a dry drainage ditch but was captured. Spill did not reach surface waters 	0	152	Drainage Conveyance System; Street/Curb and Gutter (2 3)		First set of coordinates corresponds to DI at the start of the spill. Second set of coordinates is corresponding to the spill exit to the drainage ditch and the third coordinates corresponds to the spill limits.	Y	38.36464	-121.96539	38.36438	-121.96728	38.3647	-121.96711			06/16/2024 16:42	Methodology used Area/Volume and EDU based on the report of spill and interview with business/manager owner.	Most accurate information is the interview with business/manager owner and inspection of two businesses. One business is a western wear store and the other is a restaurant. Staff confirmed grease buildup caused by restaurant.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		53	No visible impact to aquatic life.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Water Quality - ECI's were notified and an FSE inspection was requested along with CCTV from the public lateral into the private upper lateral section of the service.	VacCon was called out as well as CCTV van. Staff washed down affected above ground C&G and flushed storm drain to the last DI closest the exit of the spill. 	Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	ECI's contacted restaurant owner for an FSE inspection along with a CCTV of the upper lateral (private) and FOG educational materials. 	A follow up appointment will be scheduled with the restaurant owner.	The appointment to be completed by end of July.	06/16/2024 18:35	The cause of spill is due to FOG build-up. Mitigation and prevention efforts are outlined in the previous answers. 	Y	Spill photographs were not made available in a timely manner. Modifications in our response procedures to ensure reporting meets the compliance requirements. A follow-up meeting will be required with all staff.	08/16/2024 07:50	Storm Detention Area: Pine Basin 1	Other (specify below)	Storm Detention Basin	Storm Detention Basin	None	Other (specify below)	None	City of Vacaville	0	N	Y	Map with sample locations to be uploaded via an amendment. Sample were taken at the source. At the storm drain exit and the downstream of the exit along the drainage ditch.  	Total and Fecal Coliform, Ammonia, EC, PH and temperature.									Spill photographs were not made available in a timely manner. Modifications in our response procedures to ensure reporting meets the compliance requirements. A follow-up meeting will be required with all staff.	
8	8SSO10602	Active	Santa Ana City CS	Santa Ana City	895362	1.2	Certified	Armando Fernandez	Principal Civil Engineer		08-JUL-24	08-JUL-24	Monthly Category 3 Spill	1219 S. Main St., MH# K09-007	06/18/2024 07:30	06/18/2024 10:05	06/18/2024 07:30				Spill originated at manhole K09-007. Per conversation with resident, sewer surged out of manhole (K09-007). Upon staff arrival, sewer was still discharging.	33.73274	-117.86769	Gravity Mainline; Manhole			480	Spill originated at manhole K09-007. The spill was contained along the gutter between 1219 S. Main St. and 1229 S. Main St.	Y	The catch basin entry location is located just north of Hobart St., by the concrete bus pad.	480				480	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Spill originated at manhole K09-007, located in front of the property 1219 S. Main St. Sewer flowed downstream, heading south, to a storm drain catch basin located on S. Main St. just north of Hobart St. by a concrete bus pad.	Y	33.73274	-117.86769	33.73006	-117.86771					06/18/2024 10:10	Pictorial reference spill estimation method was used. Using the City of San Diego Metropolitan Wastewater Department's Reference Sheet for estimating sewer spills from overflowing sewer manholes.	Based on the spill volume and the time we received the call, we estimate the surge of sewer spill lasted 160 minutes. A resident confirmed a smell at 7:30 am.	Fats, Oil and Grease (FOG)		Gravity Mainline; Manhole		Vitrified Clay		95	We were able to recover all of the spill, therefore there was no impact.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Vacuumed ponded sewage and cleaned up remaining spill. All sewer located in catch basin was captured and diverted back to sewer system.	Inspected Sewer Using CCTV to Determine Cause		Inspected sewer using CCTV. Continue to monitor and work with FOG inspectors to do a site visit to local food service establishments in area.		06/18/2024 10:10	CCTV inspection showed accumulation of FOG build-up. Staff removed FOG build-up by jetting the sewer line.		N/A	06/18/2024 10:10														N/A	N/A	N/A	We do not have any rehabilitation or replacement plan at this time.	Inspected sewer using CCTV.	No capital improvements are identified for this sewer main at this time.	N/A	N/A	N/A	
2	2SSO10091	Active	American Canyon, Public Works CS	American Canyon City PWD	895374	1.1	Certified	Chris Morris	Sewer Supervisor		12-JUL-24	12-JUL-24	Monthly Category 3 Spill	Intersection of Los altos and Carolyn	06/02/2024 10:01	06/02/2024 10:48	06/02/2024 09:58				At the intersection of Los Altos Pl. and Carolyn Dr. the gravity sewer main began overflowing from the manhole. A single appearance point, in a residential neighborhood, low flow, 6 inch sized gravity mainline. 86 residential connections upstream of blockage. Blockage was approx. 400' downstream of appearance point. GPS coordinate are included, pictures and map are attached.	38.173972	-122.260444	Manhole			584	The spill came out of a single manhole at the intersection of Los Altos and Carolyn. The spill ran to both sides of the street into the gutters on Los Altos, flowing west towards Donaldson Way. The spill flowing on the southern gutter ended approx. 300' from the overflowing manhole at an installed sand berm to keep from entering storm drain. The spill flowing on the northern gutter flowed only about 50' to an installed sand berm. GPS coordinated of the end points are included. pictures and map are attached.	N						584	Street/Curb and Gutter (2 3)		The spill flowed westward on both sides of the street gutters on Los Altos. The spill ended in the gutter at sand berms placed on the north and south side gutters. GPS coordinates are of the end points where both sand berms were placed.	Y	38.17339	-122.26301	38.174	-122.26076					06/02/2024 11:04	We utilized the the pick and vent hole estimation chart as shown in our spill emergency response plan to estimate spill volume, since we had a clear picture of the overflowing manhole. Using the pick and vent hole estimation chart, the manhole had two, 1 inch size vent holes, with one, 1 inch size pick hole. pictures showed about one inch of flow above those holes. Referencing the chart 3.54 GPM per vent hole, 1.77 for the pick hole. 3.54GPM x 66MIN x 2 vent holes = 468 gallons + 1.77GPM x 66MIN = 117 gallons = 585 total gallons spilled.  	The first person to notice the spill lived on the corner address right in front of the overflowing manhole. She said once she noticed it she immediately called her boyfriend, which is a city employee that was currently on standby for the city. This explains why there is only a few minutes between the start time and when the city was notified. The spill end time was confirmed on site when the Vactor cleared the blockage and the time was then noted when flow stopped coming out of the manhole. 	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		69	No impact.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Upon arrival we locate the blockage by checked downstream manholes to find the one with no flow. We used our Vactor to clear the blockage by jetting with our Rambo nozzle. during this time another crew brought a load of sand with our backhoe to set up containment berms to keep the spill form entering the nearby creek. once blockage was cleared we then had both Vactor and Vaccon doing cleanup of the entire street and impacted area, also cleaning up the sand berms. everything that was cleaned up was returned to our wastewater treatment plant. 	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		This area will now be on our weekly hot spot checklist. We inspected this area with our CCTV camera to verify pipe was in good condition after blockage was cleared. This area is also part of a CIP that is slated to start work this year. The CIP will be replacing all the sewer in this area, once that is done we will remove this location from our hot spot list.		06/02/2024 12:25	Upon inspection of the main at the blockage location by CCTV, and by what we saw in main where we cleared the blockage with the Vactor, we found grease and roots to be the cause of the spill.		N/A	06/03/2024 12:00														N/A	This area in now part of our weekly hot spot check list. More frequent cleaning based on weekly checks will be performed. This area has also been inspected by CCTV twice this year, before and after the spill.	This area is now part of our weekly hot spot checklist and more frequent cleaning will be performed based on what is found during the weekly inspections.	Yes. We currently have a CIP that is slated to start this year (2024) for replacement of all the sewer mains in this neighborhood. 	We inspected with our CCTV camera to verify sewer main is in good working condition, which it is.	This area is already a CIP and is slated to start construction this year.	The only changes at this point is weekly checks of this area as part of our weekly hot spot checklist. Regular cleaning and inspections are already performed. 	Spill response activities for this event were excellent, minimizing the spill impact by containment, quick action in clearing the blockage and keeping the spill volume low and a thorough cleanup effort. Everything was  documentation as well as inspecting the main by CCTV the next day to verify the condition on the main. No modifications are needed at this point. 	N/A	
5S	5SSO11061	Active	Sutter Creek CS	Sutter Creek City	895376	1.1	Certified	Daniel Lafontaine	Public Works Director		21-JUN-24	21-JUN-24	Monthly Category 3 Spill	Raylan Dr	06/20/2024 08:30	06/20/2024 08:40	06/20/2024 08:10				The spill was noticed coming from manhole 221 out of the pick hole.  Wastewater was noticed routing from the manhole to the side of the road.  Photographs taken upon arrival.	38.38843	-120.80614	Gravity Mainline			200	The wastewater ran down the side of old 49 along a gutter.  The gutter opened up into a dirt area but did not reach any further.  See photographs.	N						200	Paved Surface; Street/Curb and Gutter (2 3)		Spill ran down the gutter approximately so to 40 feet and was contained at the bottom with a dirt berm (made by the operator onsite)	N									06/20/2024 09:38	Visual based on the area of the spill and on the road and minimal ponding.	Start time is unknown but could not have been long as the wet spill was visible and dry everywhere else.  Looks like spill occured for a few hours at most.	Debris-Rags; Debris-wipes/Non-disposables		Manhole		Other (specify below)	Manhole is 15 feet drop manhole.  Unknown material	75	wastewater was contained on the road and dirt berm.	N	Cleaned Up (specify below); Contained All or Portion of Spill		Waddles were deployed to contain the flow of the spill.  Dirt was mounded to contain the all of the spill volume at the bottom.	Plan Rehabilitation or Replacement of Sewer		This section of the main was scheduled to be replaced with a shallower manhole to eliminate the drop in the next fiscal year 2024/2025		06/20/2024 09:45	Rags were logged in the outlet of the manhole that caused a backup.  Hydro was able to go to downstream manhole and jet back up 		None, known issue	06/20/2024 10:30														NA	NA	The main will be cleaned prior to the replacement if replacement is delayed to Spring of 2025.	Manhole and line across old rt 49 will be replaced.	No repair could be done at this time.	Replacement	NA	NA	None, known issue	
8	8SSO10617	Active	Eastern Municipal Water District CS	Eastern Municipal Water District	895377	1.1	Certified	Ken Tagney	Director of Water Reclamation		25-JUN-24	25-JUN-24	Monthly Category 3 Spill	30050 Alicante Drive, Homeland, CA	06/21/2024 11:03	06/21/2024 11:40	06/21/2024 10:47				The system location where the spill originated from was a manhole on Alicante Drive. The additional appearance point was a cleanout. 	33.75402	-117.13583	Lateral Clean Out (Public); Manhole			945	The spill flowed on Alicante Drive until it reached the intersection of Alicante Drive and Briggs Road at which point it entered the ditch adjacent to Briggs Road and pooled. 	N						945	Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		The spills destination was in an unpaved ditch on the north side of Alicante Drive at the intersection of Alicante Drive and Briggs Road. 	Y	33.75392	-117.13636							06/21/2024 11:50	EMWD visual estimation training and field estimation chart. 	Information proved by the reporting party upon calling it in to EMWD. 	Fats, Oil and Grease (FOG)		Gravity Mainline		Polyvinyl Chloride (PVC)		34	The area where EMWD crews where clearing the blockage and cleaning had reduced traffic flow due to EMWD vehicles in the area. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		EMWD responded to the spill containing the overflow using a vacuum truck. Once the blockage was cleared EMWD cleaned the area affected by the spill and recovered all the SSO material utilizing the vacuum truck and water. 	Inspected Sewer Using CCTV to Determine Cause		Cleared and cleaned line. 		06/21/2024 13:00	The spill was caused by a build up of grease in the line. 		No	06/21/2024 13:00														None	None	No	No	N/A	N/A	No	None	No	
9	9SSO10647	Active	City of Coronado CS	Coronado City	893406	3.2	Certified	Kim Godby	Utilities Supervisor	09-FEB-24	24-JUN-24	24-JUN-24	Category 1 Spill	Embarcadero North Park	02/06/2024 11:57	02/06/2024 11:57	02/06/2024 11:30	02/09/2024 18:12	24-0764	21-JUN-24	Manhole SD0003, within Embarcadero North Park	32.70752	-117.169208	Force Main; Manhole			170898	Forcemain manhole SD003 spilled onto pedestrian walkway, oveflowed to the grass, down the rock embankment into the Embaracadero Marina, parking lot, into a storm drain system discharging to San Diego Bay.	Y	San Diego Port District storm drain catch basins to Embarcadero Marina and San Diego Port District curb inlets to the San Diego Bay. Regarding questions 10b and 10c - no spill was recovered from the drainage conveyance system. Rain water wash and, a low volume, which cannot be estimated, was recovered during power wasing cleanup.   	0	0	San Diego Bay and Embarcadero Marina.  Clarification to questions 8 & 12 regarding calculations of the estimated spill volume is provided in consultant report, dated 3/21/24.  Total spill volume was estimated at 589,305 gallons with 29% being solely wastewater or 170,898 gals. 	170898	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Surface Water; Unpaved Surface		Force main manhole SD0003, located within Embarcadero North Park - spilled onto the pedestrian walkway, parking lot, into the drainage system and into San Diego Bay and Embarcadero Marina.	Y	32.70829	-117.16911	32.70747	-117.16899	32.70798	-117.17032	32.70666	-117.16943	02/07/2024 03:30	high water alarm (SmartCover), station monitoring (Fleetzoom), ADS flow meter, video and pictures.	high water alarm (SmartCover), station monitoring (Fleetzoom), ADS flow meter	Other (specify below)	San Diego Metro System capacity and operating system constraints.	Other (specify below)	Defer to San Diego Metro System station 2 operating system challenges and capacity constraints.   	Other (specify below)	Although the HDPE pipe material is connected to the spill appearance manhole SD0003, the failure occured within the San Diego Metro System.  The pipe material failure within the San Diego Metro System is unknown.   6b. the spill appearance manhole and pipe is 14 yrs and is unknown at the actual failure location within the San Diego Metro System. 	14	Closed pedestrian walkway, parking lot, San Diego Bay and Embarcadero Marina	Y	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow	Land surface impacts were cleaned/mitigated by Patriot Environemental.  Normal flow resumed after San Diego Metro System resolved. 	Parking lot closed, spill appearance location closed off, contracted with Patriot Environmental to monitor and clean the impacted area.	Other (specify below)	Defer to San Diego Metro System. for station 2 pumping and capacity constraints during wet weather.	Defer to the City of San Diego for pump station 2 repair schedule.  Spill notification and response coordination meetings occured with San Diego and Port District.  Commitment to revisit discussions to maintain open communication channels. See Technical Report. 	Follow up meeting with City of San Diego and The Port occured in April 2024.  Next meeting is pending. 	02/07/2024 15:16	City of San Diego communicated to Coronado pump station 2 operatiing challenge and follow-on Metro capacity constraint.  Coronado responded to a high-water alarm.  See Technical Report for additional details. 	N			San Diego Bay and Embarcadero Marina	Ocean; Other (specify below)	Marina	San Diego Bay and Embarcadero Marina	none observed	Public Closure		County of San Diego - DEHQ	7	N	Y	EH 540, EH 545 Ruocco Park, EH 150 Embarcadero (NR), see report for additional locations.	Total and Fecal, Enterococcus										
4	4SSO10389	Active	Glendora City CS	Glendora City	895383	1.2	Certified	Eric Liu	Civil Engineer	24-JUN-24	27-JUN-24	27-JUN-24	Category 1 Spill	2341-0233 (543 South Elwood Avenue, Glendora)	06/14/2024 09:56	06/14/2024 11:00	06/14/2024 09:15	06/14/2024 12:53	24-3408		CSMD Map Sheet No. 2341 Manhole No. 233 MMS No. 8834134 Manhole No. 233 was overflowing.	34.12977	-117.85074	Manhole	Manhole No. 233.		7200	Sewage was flowing from Manhole No. 233 onto the street (railroad crossing into con-rock).  A portion of the sewage spill entered a storm drain located on the east side of 844 Lemon Ave.	Y	A portion of the sewage spill entered a storm drain located on the east side of 844 Lemon Ave.	0	3000	A portion of the sewage spill entered a storm drain located on the east side of 844 Lemon Ave, which leads to BI 0438 - Unit 1 - Line B, Big Dalton Wash, Big Dalton DB to Walnut Creek, Walnut Creek Channel, San Gabriel River - Santa Fe Dam to Thienes Ave, San Gabriel River @ Whittier Narrows Dam, San Gabriel River. 	3000	0	Drainage Conveyance System that discharges to surface water; Other (specify below); Street/Curb and Gutter (2 3)	Railroad crossing into con-rock.	Sewage was flowing from Manhole No. 233 onto the street railroad crossing into con-rock).  A portion of the sewage spill entered a storm drain located on the east side of 844 East Lemon Ave.	Y	34.13011	-117.85095							06/14/2024 11:15	CWEA SSCSC Manhole Gauge	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		59	N/A	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow		Upon arrival, the manhole north of 233 was overflowing. Containment was set up by a Kiewit employee. Hydro jet equipment was used to break down the mainline grease blockage. Afterward, the area was thoroughly cleaned.  All required agencies were promptly notified.	Other (specify below)	Will inspect the mainline via CCTV to determine if further action is needed.	Will inspect the mainline via CCTV to determine if further action is needed.	N/A	06/14/2024 13:10	Will inspect the mainline via CCTV to determine if further action is needed.	N			Big Dalton Wash, Walnut Creek Channel, San Gabriel River	River; Stream/Creek; Wash		A portion of the sewage spill entered a storm drain located on the east side of 844 Lemon Ave, which leads to BI 0438 - Unit 1 - Line B, Big Dalton Wash, Big Dalton DB to Walnut Creek, Walnut Creek Channel, San Gabriel River - Santa Fe Dam to Thienes Ave, San Gabriel River @ Whittier Narrows Dam, San Gabriel River. 	No impacts.	Other (specify below)	No impact	N/A	0	N	N												
4	4SSO11365	Active	Unincorporated County Area CSMD South/County Sanitation District CS	Los Angeles Cnty DPW	895389	1.2	Certified	Eric Liu	Civil Engineer	24-JUN-24	01-JUL-24	01-JUL-24	Category 1 Spill	1915-0524 (South Arizona Avenue / East Olympic Boulevard, East Los Angeles, Unincorporated County Area)	06/17/2024 19:40	06/17/2024 22:00	06/17/2024 19:20		-		CSMD Map Sheet No. 1915 Manhole No. 524 MMS No. 8838945 Manhole No. 524 was overflowing.	34.01841	-118.16814	Manhole	Manhole No. 524		500	Sewage was flowing from Manhole No. 524 onto the street.  A portion of the sewage spill entered a storm drain located on the northeast corner of 4715 East Olympic Blvd.	Y	A portion of the sewage spill entered a storm drain located on the northeast corner of 4715 East Olympic Blvd.	0	300	A portion of the sewage spill entered a storm drain located on the northeast corner of 4715 East Olympic Blvd., which leads to Private Drain DDI 0022, Private Drain DDI 0026, Chavez Ravine - Los Angeles River, Los Angeles River. 	300	200	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)	 	A portion of the sewage spill entered a storm drain located on the northeast corner of 4715 East Olympic Blvd., which leads to Private Drain DDI 0022, Private Drain DDI 0026, Chavez Ravine - Los Angeles River, Los Angeles River. 	Y	34.01837	-118.16759							06/17/2024 22:59	CWEA SSCSC Manhole Gauge	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops.	Fats, Oil and Grease (FOG)		Gravity Mainline		Other (specify below)	LCP	18	N/A	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow		Upon arrival, Manhole No. 524 was found overflowing.  Containment was set on the northeast corner of Olympic Blvd. and Arizona Ave.  Hydro jet equipment was used to break down the mainline heavy grease blockage. All required agencies were promptly notified.	Other (specify below)	Will inspect the mainline via CCTV to determine if further action is needed.	Will inspect the mainline via CCTV to determine if further action is needed.	N/A	06/18/2024 00:30	Will inspect the mainline via CCTV to determine if further action is needed.	N			Los Angeles River	River		Private Drain DDI 0022, Private Drain DDI 0026, Chavez Ravine - Los Angeles River, Los Angeles River	N/A	Other (specify below)	No impact.	N/A	0	N	N												
2	2SSO10183	Active	San Mateo CIty CS	San Mateo City	895394	1.4	Certified	Eric Morkve	Leadworker	24-JUN-24	28-JUN-24	28-JUN-24	Category 1 Spill	931 Viewridge	06/24/2024 09:56	06/24/2024 10:20	06/24/2024 07:00	06/24/2024 13:05	24-3589		Manhole 170 ft up a canyon overflowing above ground and through soil to waterway directly below	37.52497	-122.31279	Manhole			1200	see attachment	N				see attachment	1000	0	Surface Water; Unpaved Surface		Manhole in heavy vegetation, 170 ft up canyon	Y	37.52514	-122.31273							06/24/2024 11:00	Visual estimate	visual san diego method	Root Intrusion		Gravity Mainline		Vitrified Clay		50	170 ft of open soil and vegetation, waterway	N	Restored Flow		vegetation and overgrowth eliminated any possibility of cleaning up the soil and vegetation	Inspected Sewer Using CCTV to Determine Cause		6/28, jetted entire easement, CCTV immediately after	CCTV to be reviewed and suggestions to Clean Water Group for potential repair	06/24/2024 12:00	Jetted 3 total line segments on 6/28, CCTV immediately after, multiple segments throughout with fractured pipe and root intrusion	Y	Pushing for a complete slip line 	08/30/2024 07:00	unnamed waterway leading to laurel creek	Stream/Creek		waterway with heavy tules, leads to laurel creek	none	Other (specify below)	None as this area has no public access, water sampling showed nominal affect downstream	City of San Mateo	0	N	Y	overgrowth did not allow  exact  entry location, within 5-10 ft. of entry point in water channel 100 ft. upstream and downstream	Enterococci Total Coliform E Coli Ammonia									Pushing for a complete slip line 	
2	2SSO10177	Active	San Carlos City CS	San Carlos City	895396	1.2	Certified	Seven J Machida	Public Works Director	24-JUN-24	28-JUN-24	28-JUN-24	Category 2 Spill	85 Bay View	06/19/2024 13:35	06/19/2024 14:15	06/18/2024 21:00		-		In the rear yard of 85 Bay View	37.50267	-122.28203	Manhole	The spill came from the cone wall of the manhole near the top rim		3899	Spill exited the manhole cone wall and trickled down the dirt hill on the property.	N						300	Unpaved Surface		The spill was located in the rear yard at 85 Bay View. It ran down the dirt area of the hillside.	Y	37.50267	-122.28203							06/20/2024 10:08	Spill was based on amount of time and number of houses upstream from the blockage based on the average 180 gallons per day per house.	The reporting party smelled the spill around 9pm the previous night. The following morning he noticed the spill but it had not effected a large area yet.	Pipe Structural Problem/Failure - Controls; Root Intrusion		Gravity Mainline		Vitrified Clay		40	Spill impacted the dirt area in the rear yard of the property.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow		A bypass was set up when the crew was unable to clear the blockage	Repaired Facilities or Replaced Defect		A contractor was hired to dig and repair the main that was damaged and blocked with root. The remaining pipe was inspected and was in good condition.	The repair has been completed on the damaged sewer main.	06/21/2024 15:30	CCTV led us to the discovery of major root intrusion and broken pipe. 	N												N													
2	2SSO11533	Active	SLAC National Accelerator Laboratory CS	US Dept of Energy	893637	2.1	Certified	Josephine Folger	civil engineer		25-JUN-24	25-JUN-24	Monthly Category 3 Spill	Building 031 Cleanout	01/23/2024 09:30	01/23/2024 09:50	01/23/2024 09:20				Building 031 Cleanout  	37.416964	122.204397	Lateral Clean Out (Private)			50	Spill flowed from the B031 cleanout down the B031 driveway to PEP Ring Road. It entered a catch basin (CB 31E-5) on the East side of PEP Ring road. It did not leave this catch basin.   An estimated 10 gallons reached the storm drain catch basin. The remaining estimated 40 gallons remained on the pavement leading to the catch basin. 	Y	Catch Basin CB31E-5. This catch basin was already outfitted with an insert to collect leaves, sediment, and other debris. An estimated 10 gallons reached the storm drain catch basin.	10				15	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Final destination was CB31E-5	Y	37.41695	122.204828							01/23/2024 09:40	Using the SSCSC Manhole Overflow Reference, the total spilled volume was estimated to be between 25 to 50 gallons. 50 gallons is reported here to be conservative.   The quantity of water recovered from the catch basin was calculated to be 10 gallons based on the catch basin dimensions (2 ft x 2 ft x ~5� water depth).   The quantity of water recovered from the street was estimated to be 5 gallons based on the capacity of the shop vac used to remove the water.  The remaining quantity of water evaporated.  	Spill start and end time were estimated based upon when the spill was spotted and the extent the water had spread prior to responders arriving.	Root Intrusion		Lower Lateral		Vitrified Clay		60	The spilled water flowed approximately 170 feet along a paved driveway until it reached a storm drain catch basin. It did not exit the storm drain catch basin. The road was closed to vehicular traffic until the area could be disinfected. The storm drain catch basin was opened and cleaned out.	N	Cleaned Up (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Immediately following the spill, sandbags were placed around the cleanout and the bathrooms within B031 were closed off to prevent any additional overflow. The road was closed to prevent vehicles from driving through the spilled material.   Response personnel used a shop vac to vacuum up spilled liquids. The storm drain catch basin was opened up and cleared out with the shop vac. The catch basin was then rinsed out with 3 gallons of domestic water. The rinsewater was vacuumed up and returned to sanitary sewer. The road was sprayed with a 10% bleach solution.   All collected liquids were returned to the sanitary sewer and all collected solids were properly disposed of with the assistance of Waste Management. 	Repaired Facilities or Replaced Defect		Facilities personnel unsuccessfully attempted to snake the line clear. A rooter contractor was called to clear the source of the blockage. The contractor was able to locate, cut, and remove a tree root ball blocking the sanitary sewer line.   Preventative maintenance will continue to be regularly performed on this line to minimize the possibility of reoccurrence.  		01/23/2024 17:00	Personnel from SLAC�s Environmental Protection group observed the cleanup.  A rooter contractor was called to clear the source of the blockage. The contractor was able to locate, cut, and remove a tree root ball blocking the sanitary sewer line. This tree root ball was the cause of the spill. 		None	01/23/2024 17:00														None	None	None	None	Sewer line was inspected and cleared	None	None	None	None	
6B	6SSO11157	Active	Mammoth Cwd CS	Mammoth Water District	895402	1.1	Certified	Keith Weiland	Line Maintenance Supervisor		25-JUN-24	25-JUN-24	Monthly Category 3 Spill	501 Monterey Pines	06/22/2024 02:45	06/22/2024 03:30	06/22/2024 12:00				37.637516, -118.986815 out of low lying sewer manhole, stayed contained around manhole.  Cleared blockage with rodder and used vacuum truck to clean area around manhole.  Then bleached the site to disinfect. 	37.637516	-118.986815	Manhole			500	See phot attachments 1-On arrival 2-After clearing blockage 3-After cleanup	N						500	Unpaved Surface		Spill was contained around manhole, it is a low lying area, and did not flow to any other location.	Y	37.637516	-118.986815							06/22/2024 03:40	At a similar time of day at a later date popped manhole lid and estimated CFS and percent of pipe full.  Did math based off the estimated time the overflow started.  Expect it was not overflowing for long based on location being next to heavily used bike path.  	At a similar time of day at a later date popped manhole lid and estimated CFS and percent of pipe full.  Did math based off the estimated time the overflow started.  Expect it was not overflowing for long based on location being next to heavily used bike path.  	Debris-Rags; Debris-wipes/Non-disposables		Gravity Mainline		Other (specify below)	Resin Impregnated Felt Liner (CIPP)	5	Minimal impact due to low lying containment area and limited gallons exiting system and 100% being retrieved with vac truck.	N	Cleaned Up (specify below); Contained All or Portion of Spill		Arrived at site with vac/rodding combo truck and identified location of spill.  Then went to down stream manhole to rod the line and clear blockage.  Return to site of the overflow and suck the contained overflow into tank.  Return with bleach solution to disinfect area. 	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance		Added the line to the quarterly sewer cleaning worksheet.   Informed the department responsible for outreach to inform people upstream of proper sewer use.		06/22/2024 15:18	Sewer line segment flows at minimal feet per second and upstream users not appropriately using sewer by introducing rags and non flushable wipes.		None needed	06/25/2024 15:18														N/A	Added the line to the quarterly sewer cleaning worksheet	Added the line to the quarterly sewer cleaning worksheet	N/A	N/A	N/A	GIS layer identifying sewer cleaning schedule has been modified	None needed	None needed	
9	9SSO11172	Active	City Of Solana Beach CS	Solana Beach City	895404	1.3	Certified	Luis Carrillo	Public Works Manager		25-JUN-24	25-JUN-24	Monthly Category 3 Spill	Fletcher Cove park	06/24/2024 16:00	06/24/2024 16:05	06/24/2024 17:15				Spill occurred at the Fletcher Cove Park pump station, clean out. The spill started and 5:15 PM and stopped at 5:17 PM. 	32.99124	-117.2738	Lateral Clean Out (Public)			100	The spill occurred from the clean out and ran down the ramp.	N						100	Other (specify below)	Spill traveled down the ramp 	Spill traveled down the ramp. The majority of it dried before touching the sand. A Vactor truck was at the bottom of the ramp collecting the spill. 	Y	32.9912	-117.27427							06/24/2024 17:17	100% of the spill was recovered.  Standard SSO response procedures were followed. 	100% of the spill was recovered.  Standard SSO response procedures were followed.	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure		Air Relief Valve (ARV)/ Blow-Off Valve (BOV)		Cast Iron		20	Minimal impact. A Vactor truck was on-site and prepared to capture the spill. 	N	Cleaned Up (specify below); Contained All or Portion of Spill		A Vactor truck was on-site and in position to capture spill. The spill was disinfected, and pressure washed, this was also 100% collected using the Vactor truck. 	Repaired Facilities or Replaced Defect		San Elijo performed necessary repairs		06/24/2024 18:00	Solana Beach Public Works department was notified of a restroom situation going on at Fletcher Cove Park. It was determined the pump station was experiencing some type of failure. San Elijo JPA was then contacted along with the city's sewer maintenance service provider before a spill occurred. Both were on-site when the spill occurred, and they were able to minimize the spill by reacting quickly. 		San Elijo JPA will conduct further inspections and if needed make additional repairs	06/28/2024 16:00														The City of Solana Beach reacted by contacting San Elijo JPA to notify them of an issue with the pump station. The city's sewer maintenance provider was also contacted. 	San Elijo JPA performed necessary repairs	Pump Station is inspected daily	Repairs will be performed by San Elijo JPA	San Elijo JPA performed necessary repairs	San Elijo JPA will conduct further inspections and if needed make additional repairs	Not available at this time	Not available at this time	San Elijo JPA will conduct further inspections and if needed make additional repairs	
7	7SSO10507	Active	Banning STP-Non Npdes CS	Banning City	895418	1.2	Certified	Perry Gerdes	Water/Wastewater Superintendent		25-JUN-24	25-JUN-24	Monthly Category 3 Spill	Harlow Easement	05/27/2024 19:00	05/27/2024 19:22	05/26/2024 17:22				Overflow originated from manhole U10-108. Upon arrival the manhole lid was 5 feet away from the manhole and sewer was flowing out. A homeless tent was in the trees nearby but no one was there.	33.92467	-116.86138	Manhole			780	The overflow flowed onto asphalt around the manhole then into an empty dirt lot to the east of the manhole	N						780	Paved Surface; Unpaved Surface		The sewer flowed out of the manhole on to the pavement around the manhole then in to a vacant dirt lot to the east flowing 84 feet away	Y	33.92471	-116.86118							05/27/2024 20:51	The flow upon arrival was visually estimated at .5 gallons a minute. Slowly trickling out of the manhole. The sewer line is 6 inch with not a lot of flow. The use of the manhole estimation chart.	The volume and time was estimated by the amount of flow observed upon arrival and the distance it traveled out of the manhole.	Vandalism (specify below)		Manhole		Vitrified Clay		70	The manhole was opened and debris thrown into it causing a sewer overflow.	N	Cleaned Up (specify below); Restored Flow		Our combination truck was in the auto shop so we had to pick it up there. Once on site we started vacuuming the manhole and stopped the overflow. A trash bag, bed sheet, pieces of galvanized pipe, rocks and sticks were removed to resume normal flow to the sewer. We returned the next day to start vacuuming the fluid and soil. We got about 15 feet from the manhole and the combination truck broke down. So then we used a tractor and dump truck. We removed 2 truck loads of wet soil and hauled it away to the wastewater treatment plant  We then dumped native soil back and graded the area.	Other (specify below)	Check the area weekly for homeless activity	Checking the area weekly		05/28/2024 16:30	No		No	05/28/2024 16:30														No	No	Checking the area weekly for homeless activity	No	No	No	No	No	No	
7	7SSO20023	Active	Banning STP-Non Npdes CS	Banning City	895418	1.2	Certified	Perry Gerdes	Water/Wastewater Superintendent		25-JUN-24	25-JUN-24	Monthly Category 3 Spill	Harlow Easement	05/27/2024 19:00	05/27/2024 19:22	05/26/2024 17:22				Overflow originated from manhole U10-108. Upon arrival the manhole lid was 5 feet away from the manhole and sewer was flowing out. A homeless tent was in the trees nearby but no one was there.	33.92467	-116.86138	Manhole			780	The overflow flowed onto asphalt around the manhole then into an empty dirt lot to the east of the manhole	N						780	Paved Surface; Unpaved Surface		The sewer flowed out of the manhole on to the pavement around the manhole then in to a vacant dirt lot to the east flowing 84 feet away	Y	33.92471	-116.86118							05/27/2024 20:51	The flow upon arrival was visually estimated at .5 gallons a minute. Slowly trickling out of the manhole. The sewer line is 6 inch with not a lot of flow. The use of the manhole estimation chart.	The volume and time was estimated by the amount of flow observed upon arrival and the distance it traveled out of the manhole.	Vandalism (specify below)		Manhole		Vitrified Clay		70	The manhole was opened and debris thrown into it causing a sewer overflow.	N	Cleaned Up (specify below); Restored Flow		Our combination truck was in the auto shop so we had to pick it up there. Once on site we started vacuuming the manhole and stopped the overflow. A trash bag, bed sheet, pieces of galvanized pipe, rocks and sticks were removed to resume normal flow to the sewer. We returned the next day to start vacuuming the fluid and soil. We got about 15 feet from the manhole and the combination truck broke down. So then we used a tractor and dump truck. We removed 2 truck loads of wet soil and hauled it away to the wastewater treatment plant  We then dumped native soil back and graded the area.	Other (specify below)	Check the area weekly for homeless activity	Checking the area weekly		05/28/2024 16:30	No		No	05/28/2024 16:30														No	No	Checking the area weekly for homeless activity	No	No	No	No	No	No	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	895422	1.2	Amended	Kent Vian	Asst. Deputy Director	26-JUN-24	03-JUL-24	03-JUL-24	Category 1 Spill	NOT# 20200712809 500 HOTEL CIRCLE N.	06/25/2024 08:24	06/25/2024 08:41	06/25/2024 08:23	06/25/2024 09:28	24-3610		THE SPILL ORIGINATED FROM A MANHOLE NORTH OF 500 HOTEL CIRCLE N. ON A SIDEWALK.	32.76405	-117.16996	Manhole	NONE	N/A	850	THE DESCRIPTION OF THE EXTENT OF THE SPILL AND BOUNDARIES WAS THE SPILL EXITED THE COLLECTION SYSTEM THROUGH A MANHOLE, TRAVELED NORTH ONTO THE CURB AND GUTTER, AND THEN TRAVELED EAST INTO THE SAN DIEGO RIVER.	N	NA	0	0	THE DISCHARGE POINT INTO THE SURFACE WATER WAS VIA A CONCRETE EMBANKMENT.	830	20	Paved Surface; Street/Curb and Gutter (2 3); Surface Water	N/A	THE SPILL EXITED THE MANHOLE, HEADED NORTH AND THEN EAST INTO THE SAN DIEGO RIVER.	Y	32.76405	-117.16996	32.7642	-117.17009	32.76437	-117.17011			06/25/2024 08:57	VISUAL CALCULATED METHOD/ DURATION AND FLOW METHOD.	START TIME ESTIMATIONS WERE ASSUMED WHEN THE CONSUMER CALLED IN AND REPORTED THE SPILL TO THE CITY DISPATCH.	Fats, Oil and Grease (FOG)	N/A	Force Main	THE SYSTEM FAILURE WAS DUE TO A GREASE BLOCKAGE 167' UPSTREAM OF EQ# 10869722.	Vitrified Clay	N/A	56	IMPACTS OF THE SPILL WERE TO THE SIDEWALK, CURB, GUTTER AND THE SAN DIEGO RIVER.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	CONTAINMENT EFFORTS- DID NOT HAVE IMMEDIATE SPILL CONTAINMENT DUE TO THE LOCATION OF OTHER STAFF MEMBERS. THE CREW RELIEVED THE BLOCKAGE WHICH STOPPED THE SPILL. CLEANED UP- WASH DOWN AND CLEAN UP DEBRIS FROM THE SPILL PATH.	Inspected Sewer Using CCTV to Determine Cause	N/A	THE SPILL CORRECTIVE ACTION- CREWS RELIEVED A GREASE BLOCKAGE 167' UPSTREAM OF EQ# 10869722. 	NO KNOWN MILESTONES OF NOW.	06/26/2024 08:00	CREWS RELIEVED A GREASE BLOCKAGE 167' UPSTREAM OF EQ# 10869722. 	N	N/A		SAN DIEGO RIVER	River	N/A	The San Diego River is a river in San Diego County, California. It originates in the Cuyamaca Mountains northwest of the town of Julian, then flows to the southwest until it reaches the El Capitan Reservoir, the second-largest reservoir in the river's watershed at 112,800 acre-feet (139,100,000 m3). Below El Capitan Dam, the river runs west through Santee and San Diego. While passing through Tierrasanta it goes through Mission Trails Regional Park, one of the largest urban parks in America.  It flows near the Mission San Diego de Alcal�. The river's valley downstream from there is known as Mission Valley for that reason. The valley forms a transportation corridor for Interstate 8 and for the San Diego Trolley Green Line. The river discharges into the Pacific Ocean near the entrance to Mission Bay, forming an estuary.	THERE ARE NO KNOWN VISUAL IMPACTS ON AQUATIC LIFE.	Other (specify below)	THERE IS NO PUBLIC ACCESS TO THIS AREA OF THE RIVER.	N/A	0	N	N	N/A	N/A									N/A	
3	3SSO10332	Active	City of Morgan Hill CS	City of Morgan Hill	895429	1.1	Certified	Chris Ghione	Public Services Director		27-JUN-24	27-JUN-24	Monthly Category 3 Spill	16680 Oak View Circle Morgan hill 	05/29/2024 08:22	05/29/2024 08:41	05/28/2024 16:30				Spill originated from a manhole min the resident's backyard, went into his yard drain and entered the curb & gutter and then storm drain 	37.140258	-121.594519	Manhole			360	spill went onto the lawn, and over dirt areas in back yard and pooled near yard drain , then came out in to curb and went into storm drain	Y	storm drain was 2' x 3' and sewage collected in the bottom, but did not travel across street or down stream	3				3	Drainage Conveyance System; Street/Curb and Gutter (2 3); Unpaved Surface		the spill happened over night and was mostly absorbed into landscaping, grass, dirt and shrubs.	Y	37.140206	-121.595278							05/29/2024 09:09	used Volume estimation Upstream Connections Method	Best guess on start time, ground was already moist from runoff from neighboring yards uphill of resident. end time was when the flusher broke the plug.	Root Intrusion		Gravity Mainline		Vitrified Clay		30	spill was mostly absorbed into the ground, no solids were found past the first few feet, it ended up making its way to the front yard via a yard drain then into storm inlet box	N	Cleaned Up (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		crew burmed storm inlet, used Vactor/combo truck to break plug, vacuumed storm inlet, checked downstream and no sewage was found, cleaned as much area as possible, but most was absorbed into the lawn and landscape, cleaned curb and gutter as well.	Adjusted Schedule/Method of Preventive Maintenance		will add segment to a quarterly maintenance schedule		05/29/2024 12:03	spill was caused by roots; current videos show roots entering from pipe joints		No 	06/26/2024 12:07														N/A	Add to quarterly maintenance schedule	yes	No	No 	None 	will update when available 	Oracio arrived on scene, burmed area, called out crew, crew broke plug with combo truck then cleaned and vacuumed curb and storm drain, crew went into back yard and removed solids from small area next to manhole. then check downstream storm pipe and was dry. 	No 	
9	9SSO10710	Active	USMC Base, Camp Pendleton CS	US Marine Corps Base Camp Pendleton	895433	1.2	Certified	Robert Stephen Ramsey	Public Works Officer	27-JUN-24	27-JUN-24	27-JUN-24	Category 1 Spill	62831 (TAPS 12) ARV T12-4	06/12/2024 21:00	06/12/2024 21:30	06/12/2024 21:00	06/12/2024 23:00	24-3380		Spill occurred at TAPS12 ARV T12-4.  Map showing TAPS 12 ARV T12-4 uploaded as Attachment,  TAPS 12 ARV T12-4.png 	33.4241	-117.5662	Force Main; Other (specify below)	TAPS12 ARV T12-4	Spill Path shown on 2-uploaded attachment: (1)  TAPS 12 ARV T12-4.jpg  (2)  62831 ARV #4 spill map.jpg 	21150	Spill Path shown on 2-uploaded attachment maps: (1)  TAPS 12 ARV T12-4.jpg  (2)  62831 ARV #4 spill map.jpg 	Y	Spill Path shown on 2-uploaded attachment maps: (1)  TAPS 12 ARV T12-4.jpg  (2)  62831 ARV #4 spill map.jpg 	0	0	All 21,150 gallons drained into stormwater depressions.	21150	0	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Unpaved Surface		A motorcyclist crashed into and sheared off a 62831 (TAPS 12) ARV T12-4 on 6/12/2024, 2100 hours.  The sheared ARV resulting spill path/destination is shown on attached uploaded  62831 #4Spill Map.jpg 	Y	33.4241	-117.5662							06/13/2024 22:00	A wastewater operator estimated hourly spill quantities based on spill geyser heights during spill period: 6/12/2024, 2100 hrs to 6/13/2024, 2200 hrs.	Spill start time determined by call to emergency operations center with PMO onsite. Spill end time determined by onsite crews visual observation.	Damage by Others Not Related to Collection System Construction/Maintenance	A motorcyclist crashed into and sheared off a 62831 (TAPS 12) ARV T12-4 and its isolation valve on 6/12/2024, 2100 hours.	Air Relief Valve (ARV)/ Blow-Off Valve (BOV)		Other (specify below)	HDPE	10	(1) MCBCP Camps 62, 63, 64 were without wastewater treatment for 25 hrs:  6/12/2024, 2100 hrs - 6/13/2024, 2200 hrs.	N	Mitigated Effects of Spill (specify below); Restored Flow	(1) 24/7 Wastewater operator TAPS12 ARV T12-4 presence during spill: 6/12/2024, 2100 hrs - 6/13/2024, 2200 hrs.   (2) WW operators managed the TAPS 12 forcemain backflow to TAPS 12; 3-Retention basins and the 3-vactor trucks pumping out the retention basins for discharge to the Northern Regional Tertiary Treatment Plant. (3) Hourly Spill estimates based on spill geyser heights during spill. (4) Managing installation of the ARV isolation valve.  (5) Managed TAPS 12 operations status.	(1) 24/7 Wastewater operator TAPS12 ARV T12-4 presence during spill: 6/12/2024, 2100 hrs - 6/13/2024, 2200 hrs.   (2) WW operators managed the TAPS 12 forcemain backflow to TAPS 12; 3-Retention basins and the 3-vactor trucks pumping out the retention basins for discharge to the Northern Regional Tertiary Treatment Plant. (3) Hourly Spill estimates based on spill geyser heights during spill. (4) Managing installation of the ARV isolation valve.  (5) Managed TAPS 12 operations status.	Repaired Facilities or Replaced Defect	Installed ARV isolation valve on 6/13/2024, 2200 hrs.	Installed ARV isolation valve on 6/13/2024, 2200 hrs.	Installed ARV isolation valve on 6/13/2024, 2200 hrs.	06/13/2024 22:00	A motorcyclist crashed into and sheared off a 62831 (TAPS 12) ARV T12-4 on 6/12/2024, 2100 hours. 	N			Cristianitos Creek	Stream/Creek	Christianitos Creek	Cristianitos Creek is currently dry	Spill never discharged to the current dry Cristianitos Creek	Restricted Public Access		Water Resources Division	0	N	N												
2	2SSO10128	Active	Dublin San Ramon Serv Dst CS	Dublin San Ramon Services District (WWTP NPDES & SSO)	895435	1.2	Certified	Clint Byrum	Water/Wastewater Systems Superintendent		23-JUL-24	23-JUL-24	Monthly Category 3 Spill	LS 2 S. Terracina Drive	06/24/2024 10:41	06/24/2024 10:58	06/24/2024 09:18				The first appearance point was manhole Z19A1-16 which is located in the middle of S. Terracina Drive which is located approximately 60' from the intersection of S.Terrace Dr and Croak Rd(37.717152, -121.839662). The second appearance point is from the lift station wet well lid located on the North side of S.Terracina Drive in the planter area bout 10' off of the road (37.717259 -121.839744).	37.717152	-121.839662	Manhole; Pump Station			735	The spill ran down the asphalt street to a storm drain on the north side of S.Terracina Dr, (gps location 37.717227, -121.839804). Some of the spill stayed on the pavement and went down the road to gps location 37.717066, -121.839990 (Approximately 70' from the manhole) where it dried up in the roadway. The spill traveled to a storm detention basin located at 37.717027, -121.839865 where it was isolated form reaching any other part of the storm system or waterways.	Y	The spill entered the storm drain inlet at gps location 37.717227, -121.839804 and ran 100' to a storm drain basin located across the street located at 37.717027, -121.839865.	149				595	Drainage Conveyance System; Groundwater Infiltration Basin or Facility; Paved Surface; Unpaved Surface		The spill ran down the asphalt street to a storm drain on the north side of S.Terracina Dr, (gps location 37.717227, -121.839804). Some of the spill stayed on the pavement and went down the road to gps location 37.717066, -121.839990 (Approximately 70' from the manhole) where it dried up in the roadway. The spill traveled to a storm detention basin located at 37.717027, -121.839865 where it was isolated form reaching any other part of the storm system or waterways.	Y	37.717227	-121.839804	37.717027	-121.83999	37.717027	-121.839865			06/24/2024 11:13	The spill volume estimation was done through SCADA data of the lift station. The lift station pumps start at 3' and turn off at 2'. The diameter of the wet well is 5' and 1' of volume in the wet well equals 146.9 gallons. During the average time period of 9:00 pm. to 11: 15 am. there are 37 pump cycles. Each cycle the pumps remove 146.9 gallons from the wet well, when you multiply that by 37 pumping cycles you get  5,434.5 gallons. The surcharge volume was then calculated next. This was done by calculating the surcharge in upstream manhole levels, upstream piping and the wet well itself. The total amount of sewage surcharge in the system was 4,700 gallons. We then took the total volume of 5,531 and subtracted 4,700 gallons of surcharged to get the spill volume of 734.5 gallons. (See Attached LS2 SCADA Spill Calculation sheet)	The Spill Volume and Flow Rate were utilized to calculate the spill duration. The duration was subtracted from the spill end time to establish the estimated start time of 9:18 a.m. 	Pump Station Failure - Controls		Pump Station - Controls		Polyvinyl Chloride (PVC)		11	The spill exited manhole Z19A1-16 through the 1  pick hole and seeped around top of lid. The spill flowed west where most of it entered the storm drain on the north side of the road. The remainder flowed 50' farther down the street and dried up. There was also spill occurring around the pump station wet well where it entered the landscape area and flowed into the same drain inlet on the north side of the road. The spill traveled approximately 100' to the storm basin.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Arrived at the lift station, took photos videos, secured the site, called in for a combo truck and started packet. Once documentation was started, we trouble shoot the station and get the pumps back up and running. The station had power, but the UPS was off along with the PLC. Turned the UPS back on and got the PLC back up and running. This brought the pumps back on which immediately stopped the spill. We utilized the combo truck to clean the storm lines and vacuum out the sewage that had made it to the detention pond. Once the storm lines and detention pond were cleaned, we washed down the street and captured the wash down with the vacuum.	Repaired Facilities or Replaced Defect		We found that we need to be able to monitor the communications to the lift station sites from SCADA. This will allow us to receive an alarm if there was an internal failure that kept any alarms from reaching back to SCADA and notifying operators of an issue. Logic will be installed at our 2 main repeaters that will periodically check in with our lift stations and ensure we are receiving communications. If the station is not reached a SCADA alarm will be generated and an operator will be notified to investigate.		06/24/2024 14:15	The cause of the spill was the failure of the lift station UPS. The UPS failed on being over temperature and immediately turned off the PLC. This immediate turnoff kept the station from sending out any alarms overnight.		Working with Instrumentation group to ensure that this type of incident does not occur at any of our Lift stations. This involves auditing our controls at these sites.	06/27/2024 16:00														N/A	See 20 b.	N/A	N/A	N/A	N/A	Worked with and tested functionality of alarms from main SCADA server for communication with remote sites. The server monitors communication with remote sites, if remote sites do not communicate back within a certain time period a SCADA alarm is triggered notifying the standby operator.	None	Working with Instrumentation group to ensure that this type of incident does not occur at any of our Lift stations. This involves auditing our controls at these sites.	
2	2SSO10154	Active	Mill Valley City CS	Mill Valley City	895436	1.1	Certified	Mark Neumann	Deputy Director - Ops & Utilities		28-JUN-24	28-JUN-24	Monthly Category 3 Spill	38 Miller Avenue	06/26/2024 10:00	06/26/2024 11:00	06/21/2024 12:00				A 6  VCP Sewer Line was damaged approximately 38' upstream of a manhole in Miller Ave.  The appearance point was a damp pipe exposed by excavation for an unrelated gas main project.  See attachments	37.90526	-122.54751	Gravity Mainline			240	Spill was contained in and absorbed in trench excavated by PG&E	N		0				0	Other (specify below)	Bottom of Trench excavated for Gas Main Replacement	Spill was contained in and absorbed in trench excavated by PG&E. 	Y	37.90526	-122.54751							06/28/2024 12:10	Drop Bucket Estimation Method.  Assumption of start of spill was when PG&E work initially started in the area which caused vibration in the subsurface.  	Assumption of start of spill was when PG&E work initially started in the area which caused vibration in the subsurface.  Spill end time was when the damage revealed by CCTV Inspection was repaired	Damage by Others Not Related to Collection System Construction/Maintenance		Gravity Mainline		Vitrified Clay		60	Spill travelled down the sand bedding of the trench and eventually fell into the newly excavated trench	N	Contained All or Portion of Spill; Restored Flow		Replaced Broken Pipe Section, Restored Flow	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect		We inspected the break using CCTV cameras, we did a spot repair to stop the spill and intend to line the project later this summer as part of our annual CIP program			Pipe break as a result of construction activity, when trench went through area downstream of break spill became evident. 		Verify whether traditional lining or pipe burst replacement is best option for repair upon further analysis of CCTV video	07/31/2024 15:30														N/A	N/A	N/A	line the project later this summer as part of our annual CIP program	CCTV of segment. Spot repair performed at point of break	line the project later this summer as part of our annual CIP program	CCTV Line	N/A	Verify whether traditional lining or pipe burst replacement is best option for repair upon further analysis of CCTV video	
2	2SSO10185	Active	Sanitary District #2 Of Marin CS	Sanitary District #2 of Marin	895449	1.2	Certified	Chris Good	Senior Civil Engineer	27-JUN-24	02-JUL-24	02-JUL-24	Category 1 Spill	Madera Del Presidio Drive	06/24/2024 10:19	06/24/2024 10:19	06/24/2024 09:30	06/24/2024 12:10	24-3586		The spill appeared from two sewer manholes on Madera Del Presidio Drive in Corte Madera. The first sewer manhole was D6_200 (GPS below) and the second manhole was E6_860 (37.917685, -122.508637) and is located 234' to the south.	37.91831	-122.509	Manhole		The spill came from manholes D6_200 and E6_860 on Madera Del Presidio Drive as described above.	78	From manhole D6_200 the spill exited the manhole, ran into the west gutter, and went north to the nearest catch basin 71' away. The spill entered the storm drain and was partially contained by mud before it made its way to the surface water through the outlet pipe. From the second manhole E6-860, the spill exited the manhole, ran into the west gutter, and went south to the nearest catch basin 12' away. The spill entered the catch basin and was mostly contained due to the outlet pipe being almost completely full of mud, however a small amount of sewage was observed trickling into the open channel.	Y	The spill from both sewer manholes reached two separate catch basins on the west side of Madera Del Presidio Drive. Both catch basins have pipes directly discharging into the open channel adjacent to the road, however the north catch basin (37.918423, -122.509107) did not have any sewage observed at the outlet and the south catch basin (37.917656, -122.508641) was full of sediment blocking most of the flow.	45	0	Both the north pipe outlet (37.918392, -122.509171) and south pipe outlet (37.917638, -122.508711) drain directly into the open channel adjacent to Madera Del Presidio Drive.	12	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		The spill came from two sanitary manholes, spilled across road into gutter, traveled to two storm catch basins where it was mostly contained, however a small amount was able to reach the open channels (surface water) adjacent to Madera Del Presidio Drive near the intersection of Meadowcreek Drive. The open channels are currently cut off from the San Francisco bay due to flood gate and pump station projects, so any spilled sewage is currently contained in the channels. The GPS locations provided below are where staff believe a small amount of sewage reached surface water.	Y	37.91764	-122.50875	37.91838	-122.50918					06/24/2024 11:56	Town staff used the eyeball estimation method, the area/volume method, and duration and flow rate method for estimating amount of spill. Most of the spill was contained in catch basins, pipes, and the gutter, so staff felt that the area/volume measurements taken were the most accurate method of determining amount of volume spilled. The Town could not accurately measure the flow rate coming from manholes, so we do not have high confidence in the duration and flow rate method, however the estimates were similar.	Sanitary maintenance staff were the first to discover the spill at 10:19am. Based off the extremely low flow coming from the south manhole and no flow coming from the north manhole and the small amount of sewage contained in the two catch basins, staff estimated that the start time was approximately at 9:30am.  Once the maintenance team was able to set up a sewer bypass and lower the sewage level in the upstream sewer system, we confirmed that 11:56am was the end of the spill.	Damage by Others Not Related to Collection System Construction/Maintenance	The contractor working on a nearby storm pump station accidentally collapsed the sewer main while installing shoring, which went unnoticed until the spill occurred.	Gravity Mainline	The PVC gravity main was crushed by construction equipment and filled with dirt blocking flow.	Polyvinyl Chloride (PVC)		14	A majority of the spill was recovered in the road, gutter, catch basins, and storm pipes. A small amount of sewage entered surface water in the open channels next to the road, however the spill was minor considering volume of water in the channel it spilled into.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	District staff cleaned all contaminated areas with fresh water and used the vactor truck to capture the cleaning water and sewage. Catch basins and pipes were jetted and cleaned out using the vactor truck. District staff also contained the flow upon arrival by building a dirt dam in the gutter.	District staff immediately shoveled dirt into gutters to keep further sewage from entering storm drains. Staff brought out a trash pump and vactor to begin bypassing the failed sewer main and lowering the level of the surcharged system. Once a sewer bypass was in place, staff used vactor to clean road, gutters, catch basins, and pipes. 	Repaired Facilities or Replaced Defect		The contractor who initially caused the sewer main damage excavated and replaced the damaged section of sewer main on the same day as the spill, restoring the system to normal function. District staff then cleaned out all the nearby sewer mains to remove all aggregate that entered pipes.	Repairs were completed the same day as the initial spill.	06/24/2024 19:08	District staff cleaned out the sewer main where the obstruction was expected, and using CCTV, located a portion of pipe that was collapsed. The contractor working on the storm pump station project then excavated next to their shoring and uncovered the section of sewer main that had been damaged and was collapsed. It was determined that the contractor working on the storm pump station project had not potholed or located the sewer main before work began and inadvertently hit it while excavating to install shoring on 6/19/24.	N			Madera Del Presidio Open Channels	Other (specify below)	The spill reached man made open channels/canals that run adjacent to Madera Del Presidio Drive. The open channels are currently cut off from the San Francisco Bay due to ongoing flood control projects.	Man-made open channels or canals.	No impacts observed.	Other (specify below)	No access impacted. The open channels are not used for recreation.	None	0	N	Y	150' upstream of spill, at spill location, and 150' downstream of spill	Total coliform bacteria, fecal coliform bacteria, e-coli, ammonia.										
5S	5SSO10901	Active	City of Sacramento Utilities CS	Sacramento City	895462	1.1	Certified	Kevin Guerra	Superintendent		28-JUN-24	28-JUN-24	Monthly Category 3 Spill	2432 40th Avenue Sacramento, Ca. 95822	05/18/2024 14:58	05/18/2024 16:06	05/18/2024 14:56				The spill appearance point was the pick hole on a manhole lid that is located directly in front of this address.	38.51585	-121.48115	Manhole			336	The spill left the manhole in the street, and traveled South to the Gutter Pan and then East to a drain inlet where it entered the  Drainage System. Once in the system it travelled North through 3 drainage mains until it was captured three streets away.	Y	The drainage conveyance system must travel a long distance to a sump station before it gets transported to a waterway. The spill never reached the sump station that would of received the spill.	336				336	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		The spill let the manhole located in front of the reporting address and ran 5 feet to the gutter pan to the south. It then traveled approximately 100 feet to the drain inlet where it entered the drainage system. It then traveled North 735 feet where it was recovered from a drainage manhole.	Y	38.51585	-121.48115	38.51586	-121.48155	38.51781	-121.48165			05/18/2024 16:31	The spill area was sectioned off  and multiple areas were measured. The measurements were used in the City of Sacramento's spill Calculator to get the estimated totals. The  Drainage Piping length and diameter along with the depth of liquid that tested positive was entered into the calculator to get the additional gallons captured in the drainage system. All of the different calculations were added together to get the estimated total gallons that was removed and returned to the sewer system.	The responder called the person who reported the spill and asked if they could give times for when the spill was first noticed. The manhole sits in front of the callers driveway and they confirmed the spill had started when the call to notify us occurred.  The responder recorded the time that he relieved the plugged main and we used this as the spill end time.	Debris-General; Debris-Rags		Gravity Mainline		Vitrified Clay		71	The spill did not impact service to the customers nor the surrounding area.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		The responder arrived onsite and took pictures of the spill. The spill had made it to the drain inlet that had a large grate. The vehicle did not have materials to stop the flow before entering the drain, so the responder went to relieve the spill as fast as possible.	Inspected Sewer Using CCTV to Determine Cause		The sewer main was immediately cleaned and inspected. A smart cover has been installed in the area to prevent a spill from reoccurring in this area as well.		05/18/2024 18:20	We have determined that rags were the cause of the spill by what the responder observed once he unplugged the main.. There is a fitting and change in direction in this main close to where the responder stated he unplugged the main. There was no other defects or issues that may have cause the spill to occur.		N/A	06/04/2024 10:32														N/A	A smart cover was installed in this area to prevent future spill from occurring	The scheduled maintenance will not be adjusted, the smart cover will monitor the area in between cleanings.	N/A	The main was inspected using using CCTV equipment. It is in good condition and has no defects.	N/A	N/A	The responder and supervisor were spoken to about the materials not being stocked on the truck and other methods of containment such as turning off the downstream drainage sump when any spill occurs.	N/A	
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	894894	2.1	Certified	Daniel Whitlock	Manager	17-MAY-24	01-JUL-24	01-JUL-24	Category 2 Spill	496 Sea Cliff Ave.	05/15/2024 12:33	05/15/2024 13:10	05/10/2024 10:00		-		Asset P-99584 pump station by 496 Sea Cliff Ave.	37.7871	-122.49164	Force Main			2535	Spill came out of the ground and ran down the hill, in front of lift station. Flow did not make it to the water or beach. Flowed and absorbed into the hillside.	N						0	Unpaved Surface		Spill originated from a hole in the ground in front of the lift station. Up the hill before the fence to driveway at 496 Sea Cliff.	Y	37.78731	-122.49162	37.78736	-122.49161	37.78744	-122.4916	37.78746	-122.49158	05/17/2024 11:00	Sea Cliff Pump station data and eyeball estimate for overland flow were used to calculate SSO Volume	Cycles 12 times a day Cycle time = 90 sec Number of days = 7 Flow rate from ground = 20 gallons per min  1.5min x 20 gpm x 12 cycles = 360 gallons per day 360 GPD x 7 days = 2520 gallons 1 hr extra (360%24) = 15 gallons 2520 + 15 = 2535 gallons total	Other (specify below)	Pipe structural problem/failure	Force Main		Cast Iron		86	Spill all contained within sandy soil and pit that was dug by response crew. Any spill that got onto paved walkway way cleaned by response crew.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other (specify below)	Contractor disposed of contaminated soil at the spill and repair location and backfilled it with new soil. Disposed of contaminated soil via Clean Harbors Environmental Services. Our response crew cleaned any spill that got onto paved walkway.	Signs posted warning public of spill. Scrubbed and cleaned up spill where we were able to. Contractor disposed of contaminated soil at the spill and repair location and backfilled it with new soil.	Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect		WO 8403456 emergency repair of force main P-599584 finished on 5/17/2024.  Rehab and replacement of force main is in the planning phase. Tentative start 2026.	Dec. 20th 2023 - Employee at pump station notices water in the pump station  March 2024 - We just get notified of the leak and dye testing of the forcemain comes back negative while dye testing of a MS4 storm drain pipe comes back positive.  5/10/2024 - Employee at pump station noticed another leak above ground and knew it was from force main  5/15/2024 - Sewer Operations notified of leak  5/17/2024 - Repairs to force main completed	05/17/2024 15:30	In August of 2023, there was a leak on the same force main that was repaired. On December 20th of 2023 an employee at the pump station noticed a leak in the pump station. We were not notified of this leak until March 2024. Once we were notified we conducted a dye test. Green dye was introduced to a storm drain that also flows in the area which showed up in the pump station. Another test for the force main was used with blue dye. No blue dye showed up in the pump station or in the MS4/Outfall. Force main dye tested twice.  On 5/10/2024 an employee at the pump station noticed another leak above ground and this time knew it was coming from the force main. Sewer Ops was alerted on 5/15/2024 and repairs to the force main was completed on 5/17/2024	N												N													
4	4SSO10417	Active	Pico Rivera City CS	Pico Rivera City	895478	1.1	Certified	Eric Liu	Civil Engineer		17-JUL-24	17-JUL-24	Monthly Category 3 Spill	2075-0257 (9900 Tagus Street, Pico Rivera)	06/25/2024 19:53	06/25/2024 20:55	06/25/2024 19:20				CSMD Map Sheet No. 2075 Manhole Nos. 256 & 357 MMS No. 8842560 Manhole Nos. 256 & 357 was overflowing.	34.0091	-118.06489	Manhole			800	The sewage overflow spill dissipated into a dirt field south of the property. 	N						100	Building or Structure; Unpaved Surface		The sewage overflow spill dissipated into a dirt field south of the property. 	N									06/25/2024 20:40	CWEA SSCSC Manhole Gauge	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops.	Debris-Rags; Fats, Oil and Grease (FOG)		Other (specify below)	New trap was installed on Manhole No. 257 west of manhole 256 that caused sewage to back up and overflow.	Vitrified Clay		36	No impact.	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow		Upon arrival, Manhole Nos. 357 & 256 were overflowing. The new trap installed in Manhole No. 257 was backing up all the mainlines causing it to overflow.  We then exercised the trap to allow sewage to flow through and overflowing to stop. Hydo jet equipment was used to break down the mainline heavy grease and rags stoppage. Afterward, the area was thoroughly washed with fresh water. All required agencies were promptly notified. 	Other (specify below)	No recommendation is needed.	No recommendation is needed.		06/25/2024 23:30	No recommendation is needed.		No recommendation is needed.	06/25/2024 16:49														N/A	N/A	No recommendation is needed.	N/A	N/A	N/A	N/A	N/A	No recommendation is needed.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	895484	1.1	Certified	Ameal McLaurin	Sewer Supervisor 2		01-JUL-24	01-JUL-24	Monthly Category 3 Spill	100 Crest Road, Oakland Ca	06/29/2024 14:17	06/29/2024 14:30	06/29/2024 13:00				Manhole on easement in the back of the property was buried and overflowing, the sewage was flowing down to the back of this property.	37.82208	-122.21585	Manhole			103	Manhole on easement in the back of the property was buried and overflowing, the sewage was flowing down on unpaved surface, where most of the sewage soaked into the soil. A small amount reached paved concrete surface in the back of this property.	N						0	Paved Surface; Unpaved Surface		Manhole on easement in the back of the property was buried and overflowing, the sewage was flowing down on unpaved surface, where most of the sewage soaked into the soil. A small amount reached paved concrete surface in the back of this property.										06/29/2024 18:15	Calculated volumes: Planter: 8'L x 3'W x 2.38'D x 7.48-gal x .1875 = 80 gallons Average depth of planter: 3' + 1.83' + 2.33' = 7.16' / 3 = 2.38 Trench: 80'L x .33'W x .5'D x 7.48-gal x .1875 = 19 gallons Walkway: 11'L x 4'W x .01'D x 7.48-gal = 4 gallons Total spill: 80 + 19 + 4 = 103 gallons	Start time was based on eyewitness account. The end time was based on responding sewer crew restoring the flow in the mainline.	Root Intrusion		Manhole		Cross-Linked Polyethylene (PEX)		25	Manhole on easement in the back of the property was buried and overflowing, the sewage was flowing down on unpaved surface, where most of the sewage soaked into the soil. A small amount reached paved concrete surface in the back of this property.	N	Other (specify below); Property Owner Notified; Restored Flow	Property owner was provided a claim packet for restoration company to do the cleanup and mitigation of the spill.	Property owner was provided a claim packet for restoration company to do the cleanup and mitigation of the spill.	Added Sewer to Preventive Maintenance Program; Other (specify below)	Mainline has been schedule for CCTV to determine the potential causes of the overflow. 	Mainline has been schedule for CCTV to determine the potential causes of the overflow, W.O. #1537048. Mainline has been added to 6-month high frequency hydro maintenance program, W.O. # 1501155.		06/29/2024 20:30	Responding sewer crew found root intrusion in the up-stream manhole, the roots grew into the down-stream invert blocking the flow and causing the overflow.		Mainline has been schedule for CCTV to determine the potential causes of the overflow, W.O. #1537048.  	07/05/2024 14:30														N/A	Mainline has been schedule for CCTV to determine the potential causes of the overflow, W.O. #1537048. Mainline has been added to 6-month high frequency hydro maintenance program, W.O. # 1501155.	Mainline has been schedule for CCTV to determine the potential causes of the overflow, W.O. #1537048. Mainline has been added to 6-month high frequency hydro maintenance program, W.O. # 1501155.	N/A	Mainline has been schedule for CCTV to determine the potential causes of the overflow, W.O. #1537048.	N/A	Mainline has been schedule for CCTV to determine the potential causes of the overflow, W.O. #1537048. Mainline has been added to 6-month high frequency hydro maintenance program, W.O. # 1501155.	Mainline has been schedule for CCTV to determine the potential causes of the overflow, W.O. #1537048. Mainline has been added to 6-month high frequency hydro maintenance program, W.O. # 1501155.	Mainline has been schedule for CCTV to determine the potential causes of the overflow, W.O. #1537048.  	
4	4SSO11368	Active	West Hollywood CS	West Hollywood City	894804	2.1	Certified	Eric Liu	Civil Engineer	13-MAY-24	02-JUL-24	02-JUL-24	Category 1 Spill	1529-0003 (9255 Doheny Road, West Hollywood)	05/09/2024 10:00	05/09/2024 11:15	05/08/2024 11:00	05/09/2024 11:47	24-2670		CSMD Map Sheet No. 1529 Manhole No. 3 MMS No. 8782000 Manhole No. 3 was overflowing. 	34.09066	-118.39456	Manhole	Manhole No. 3		31763	Manhole No. 3 was overflowing onto the street.  The spill entered a storm drain located at 9255 Doheny Drive.	Y	The spill entered a storm drain located at 9255 Doheny Drive that flows into the Hollyhills Drain.	0	31763	The spill entered a storm drain located at 9255 Doheny Drive that flows into the Hollyhills Drain, Ballona Creek, and Santa Monica Bay. 	31763	0	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		The spill entered a storm drain located at 9255 Doheny Drive that flows into the Hollyhills Drain, Ballona Creek, and Santa Monica Bay. 	N									05/09/2024 12:30	Tributary Connections Method by office engineering staff.	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops.	Root Intrusion		Gravity Mainline		Vitrified Clay		97	Beach Closure	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow		Upon arrival, we found manhole no. 3 overflowing.  We set a spill berm at  the catch basin on 9255 Doheny Rd. and proceeded to clean the mainline from manholes 4 to 3 on Doheny Rd. to break down a heavy root blockage. we waited for the mainline to dissipate before re-cleaning with a warthog nozzle. We washed the area down with fresh water and picked up any visible solids and spill berm.  All required agencies were promptly notified.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Inspected sewer using CCTV and added sewer to preventive maintenance program. 	90-days Hydro Root Saw periodic. 	05/09/2024 12:30	Inspected sewer using CCTV and added sewer to preventive maintenance program (90-days Hydro Root Saw periodic). 	N			Hollyhills Drain, Ballona Creek, and Santa Monica Bay	Ocean		Hollyhills Drain, Ballona Creek, and Santa Monica Bay	Beach Closure	Other (specify below)	Beach Closure	LA County Recreation Waters Program	3	N	Y	7 sampling locations total, 4 South of Ballona Creek and 3 North of Ballona Creek.	Total Coliform, Escherichia coli (E. coli), Enterococcus.										
5S	5SSO10923	Active	Deer Creek CS	El Dorado Irrigation District	895502	1.2	Certified	John Chavers	Collection System Supervisor	02-JUL-24	12-JUL-24	12-JUL-24	Category 1 Spill	DC-2024-07-06	06/27/2024 08:40	06/27/2024 08:45	06/27/2024 08:31	06/27/2024 10:25	24-3657		See Attachment	38.66916	-120.91392	Lower Lateral (Public)			16213	See Attachments	Y	Roadside ditch and dry creek bed See Attachment	16213	0	See Attachment	16213	16213	Drainage Conveyance System that discharges to surface water	See Attachment	See Attachment. GPS coordinates of prigin including satellite photo map showing full extent	Y	38.66916	-120.91392							06/27/2024 09:30	See Attachment	See Attachment	Operator Error (specify below)	Operator drove over valve riser on potholed corporation stop. Weight of equipment sheared pump to force main service lateral upstream of corp stop. See Attachment for photos and details	Lower Lateral		Polyvinyl Chloride (PVC)		30	See Attachment. None visible after cleanup.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		See Attachment	Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect		See Attachment. Force Main Replacement in process	New Force Main Section Tie In scheduled Saturday 7/20/24	06/27/2024 19:00	See Attachment	N			Unnamed dry creek leading to Holiday Lake	Stream/Creek		See Attachment	NA. Dry Creek	Restricted Public Access; Temporary Restricted Use		EID staff	1	N	N												
4	4SSO11365	Active	Unincorporated County Area CSMD South/County Sanitation District CS	Los Angeles Cnty DPW	895504	1.2	Certified	Eric Liu	Civil Engineer	02-JUL-24	10-JUL-24	10-JUL-24	Category 1 Spill	1706-0006 (1233 243rd Street, Harbor City - Unincorporated County Area)	06/26/2024 09:45	06/26/2024 10:40	06/26/2024 08:30	06/26/2024 12:20	24-3638		CSMD Map Sheet No. 1706 Manhole No. 6 MMS No. 8842927 Manhole No. 6 was overflowing. 	33.8039	-118.29838	Manhole	Manhole No. 6		4750	Sewage was flowing from Manhole No. 6 onto the street.  The sewage spill entered a storm drain located at 1233 243rd Street. 	Y	The sewage spill entered a storm drain located at 1233 243rd Street. 	0	4750	The sewage spill entered a storm drain located at 1233 243rd Street, which leads to PD 0553, unknown drain, BI 19827 - U3 Line A - Torrance, Wilmington Drain, and Machado Lake.  	4750	0	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Sewage was flowing from manhole 6 onto the street. The sewage spill entered a storm drain located at 1233 243rd Street, which leads to PD 0553, unknown drain, BI 19827 - U3 Line A - Torrance, Wilmington Drain, and Machado Lake.  	Y	33.80408	-118.29829							06/26/2024 11:00	CWEA SSCSC Manhole Gauge	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops. 	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		61	N/A	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow		Upon arrival, we found that manhole 6 overflowing. We placed absorbent socks to prevent the flow from entering the storm drain. Dipstick measurements at manhole 11 indicated 1/2 inch. We used hydro jet equipment to break down the mainline grease blockage, cleaned the affected area, and notified all required agencies. 	Other (specify below)	Will inspect the mainline via CCTV to determine if further action is required.	Will inspect the mainline via CCTV to determine if further action is required.	N/A	06/26/2024 13:30	Will inspect the mainline via CCTV to determine if further action is required.	Y	Will inspect the mainline via CCTV to determine if further action is required.	09/06/2024 17:20	Wilmington Drain / Machado Lake	Lake		The sewage spill entered a storm drain located at 1233 243rd Street, which leads to PD 0553, unknown drain, BI 19827 - U3 Line A - Torrance, Wilmington Drain, and Machado Lake.  	No impacts.	Other (specify below)	No impact.	N/A	0	N	N											Will inspect the mainline via CCTV to determine if further action is required.	
2	2SSO10168	Active	Redwood City CS	Redwood City	894670	2.2	Certified	Robin Kim	Public Works Superintendent	01-MAY-24	03-JUL-24	03-JUL-24	Category 2 Spill	Davit & Shell	04/26/2024 08:57	04/26/2024 09:01	04/26/2024 08:56		-		A spill occurred at the northern corner of Davit Lane and Shell Parkway intersection in Redwood City from a damaged force main. See attached photos.	37.535419628452	-122.244268570057	Force Main			1410	The spill was contained to the northern corner of Davit Lane and Shell Parkway. The spill traveled 50 feet to a storm drain inlet located on the same corner, but once a drain blocker mat was put down, the spill traveled northeast along the Shell Parkway gutter another 63 feet and stopped. See attached photos.	Y	The storm drain inlet is located at 37.53548666461219, -122.24414061402024 on the east side of the northern corner of Davit Lane and Shell Parkway. Spill that entered this storm drain inlet was contained in the well. See attached photos.	59	0			59	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		Please see spill affected area in attachments (highlighted in blue)	Y	37.535419628452	-122.244268570057	37.535613472547	-122.243977687207					04/26/2024 11:01	Upstream of the spill location is Sewer Lift Station 10. SCADA records show pump cycle times totaling 23.5 minutes. Using an estimate of 60 gpm, we find total spill volume to be 1,410 gallons, which is in line with the number of loads the vactor equipment had to dispose of.	Spill start time is estimated to the minute based on the City Utility Locator seeing the spill and through phone records of the notification call to City Wastewater staff. Spill end time is based on the last pump cycle (through SCADA records) before repairs were implemented.	Damage by Others Not Related to Collection System Construction/Maintenance		Air Relief Valve (ARV)/ Blow-Off Valve (BOV)		Other (specify below)	Force main is ACP at this location. However the failure occurred on a cast iron valve on the force main. 	53	The spill was contained to a storm drain inlet about 50 feet from the spill origin on Shell Parkway, the curb and gutter of Shell Parkway for about 113 feet, the pedestrian ramp at the north intersection of Davit Lane and Shell Parkway, and grass surrounding the spill origin.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned All Spill to Sanitary Sewer System		Wastewater staff who arrived to the spill location put down a drain mat cover over the storm drain inlet to minimize spill into the storm drain system; the amount of spill was completely contained in the well and later cleaned and vactored out. Spill on surrounding grass, pavement, curb, and gutter was rinsed down thoroughly and vactored out. All of the spill was returned to the sanitary sewer system.	Repaired Facilities or Replaced Defect		An initial repair was performed on the day of the spill, April 26, 2024, to stop the spill. A permanent repair with replacement parts was performed on Tuesday, April 30, 2024. No additional steps are needed to prevent a reoccurrence as this part of the system has been repaired.	Friday, April 26 - spill and initial repair to flange Tuesday, April 30 - replacement flange installed	04/26/2024 13:28	A City Utility Locator opened what he thought to be a manhole right before 8:56am. When opening the cover, part of the valve became damaged and started to leak. He immediately notified City Wastewater staff at 8:57am, and a Wastewater Utility Specialist arrived upstream at Sewer Lift Station 10 at 9:01am as he was already nearby for a different meeting. Other Wastewater staff who were also a few blocks away arrived at 9:04am to the spill origin. The quick arrival to the spill origin and lift station meant staff was able to minimize the amount of spill going into the storm drain inlet, so that the amount of spill that went into the storm drain well was completely contained and did not spread through the storm drain system. 	N												N													
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	895524	1.2	Certified	Gerald Watson	Sanitation Wastewater Manager III		03-JUL-24	03-JUL-24	Monthly Category 3 Spill	6727 North Beck Avenue	06/27/2024 22:55	06/27/2024 23:17	06/27/2024 22:55				34.192946  -118.383727	34.192946	-118.383727	Manhole		None.	86	Sanitary Sewer Overflow Report 6990	N	None.	0				0	Other (specify below)	It was estimated that approximately 86 gallons of sewage backed out of the sewer as a result of the blockage. The crews were able to establish containment and captured 86 gallons of sewage, returning it to the sewer system. 	It was estimated that approximately 86 gallons of sewage backed out of the sewer as a result of the blockage. The crews were able to establish containment and captured 86 gallons of sewage, returning it to the sewer system. 	Y	34.192946	-118.383727							06/27/2024 23:17	Spill flowrate and volume determination based on flowout pickhole or opening 	Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening2inches Flowrate per pickole/opening (gpm)3gpm # of pickholes/openings1 Total flowrate (gpm)3gpm Duration of spill (minutes)30minutes Total flow (gallons)86gallons 	Vandalism (specify below)		Gravity Mainline		Vitrified Clay		96	On Thursday, June 27, 2024 at 10:55 PM, the Clean Water Conveyance Division (CWCD) received a report of sewer overflow at 6727 North Beck Avenue (TG 593-G3). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The cause of the blockage in the sewer line was attributed to vandalism. The backup ceased prior to the crew�s arrival at 11:17 PM. The crew removed the debris from the sewer and all necessary clean-up was then performed.  It was estimated that approximately 86 gallons of sewage backed out of the sewer as a result of the blockage. The crews were able to establish containment and captured 86 gallons of sewage, returning it to the sewer system.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	On Thursday, June 27, 2024 at 10:55 PM, the Clean Water Conveyance Division (CWCD) received a report of sewer overflow at 6727 North Beck Avenue (TG 593-G3). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The cause of the blockage in the sewer line was attributed to vandalism. The backup ceased prior to the crew�s arrival at 11:17 PM. The crew removed the debris from the sewer and all necessary clean-up was then performed.  It was estimated that approximately 86 gallons of sewage backed out of the sewer as a result of the blockage. The crews were able to establish containment and captured 86 gallons of sewage, returning it to the sewer system. 	On Thursday, June 27, 2024 at 10:55 PM, the Clean Water Conveyance Division (CWCD) received a report of sewer overflow at 6727 North Beck Avenue (TG 593-G3). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The cause of the blockage in the sewer line was attributed to vandalism. The backup ceased prior to the crew�s arrival at 11:17 PM. The crew removed the debris from the sewer and all necessary clean-up was then performed.	Adjusted Schedule/Method of Preventive Maintenance		As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.		06/27/2024 23:17	On Thursday, June 27, 2024 at 10:55 PM, the Clean Water Conveyance Division (CWCD) received a report of sewer overflow at 6727 North Beck Avenue (TG 593-G3). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The cause of the blockage in the sewer line was attributed to vandalism. The backup ceased prior to the crew�s arrival at 11:17 PM. The crew removed the debris from the sewer and all necessary clean-up was then performed.  It was estimated that approximately 86 gallons of sewage backed out of the sewer as a result of the blockage. The crews were able to establish containment and captured 86 gallons of sewage, returning it to the sewer system.  		None At This Time.	06/27/2024 23:17														None At This Time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	Not At This time.	Not At This Time.	Not At This Time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	On Thursday, June 27, 2024 at 10:55 PM, the Clean Water Conveyance Division (CWCD) received a report of sewer overflow at 6727 North Beck Avenue (TG 593-G3). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The cause of the blockage in the sewer line was attributed to vandalism. The backup ceased prior to the crew�s arrival at 11:17 PM. The crew removed the debris from the sewer and all necessary clean-up was then performed.  It was estimated that approximately 86 gallons of sewage backed out of the sewer as a result of the blockage. The crews were able to establish containment and captured 86 gallons of sewage, returning it to the sewer system.  	None At This Time.	
3	3SSO10307	Active	Pismo Beach CS	Pismo Beach City 	895525	1.2	Certified	William Haas	Utilities Manager	03-JUL-24	08-JUL-24	08-JUL-24	Category 1 Spill	Morro/Ocean Blvd	07/03/2024 09:20	07/03/2024 09:20	07/03/2024 09:20	07/03/2024 09:50	24-3777		Power failure at Vista Lift station resulting in a spill at Morro/Ovean Blvd at Main line.	35.15538	-120.67698	Gravity Mainline			1350	Lift station failed and gravity mainline backed up.  	Y	Travel to a storm drain approx 25' away	0	0	Traveled to an drain outlet the was not accessible at time of spill due to high surf 	850	500	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Spill was at the intersection of Morro and Ocean blvd.  	Y	35.15326	-120.67354							07/03/2024 09:47	spill was approximately 50gpm for 27 minutes equaling 1350gallons. We had a vactor truck onsite and it captured roughly 500 gallons	used picture chart with gpm estimates	Pump Station Failure - Mechanical; Pump Station Failure - Power		Manhole; Pump Station - Power	Pump station failed and caused spill out of manhole 150-200yds away	Acrylonitr. Butadiene Styrene (ABS); Concrete		2	It flowed directly to a stormdrain that we tried to block with a spill kit.  It flowed into drain directly above the ocean.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Pump station failed.  Unable to restore power an Vactor truck, pumping company and electrician called.  Flow was greater than our truck could handle.  Power restored before pumping company arrived. Spill kits were deployed as soon as it was realized that the flow was greater than our rucks capability.  Then cleanup involved pressure washing, vacuuming and chlorinating the surrounding area.  	Other (specify below)	Having the electrical accessed by an electrician and changes will be made.	As above.  Electrical work with the panel and generator. 	n/a	07/03/2024 10:30	as above.  Electrical failure causing a disturbance in power that did not activate generator.  Pumps did not run and system backed up.	N			Pacific Ocean	Ocean		Pacific Ocean	none	Other (specify below)	Unsure.  Not accessible at the time.  Waiting on County Health 	County Health  San Luis Obispo County	1	N	N												
7	7SSO10535	Active	Coachella Valley Water District CS	Coachella Valley WD	895528	1.2	Certified	Luis Torner	Wastewater Operations Manager	03-JUL-24	15-JUL-24	15-JUL-24	Category 1 Spill	Avenue 66 and Pierce Street, Thermal	07/01/2024 09:45	07/01/2024 09:45	07/01/2024 09:45	07/01/2024 11:44	24-3727		See Attachment 	33.569393	-116.108688	Force Main			4009	See Attachment 	Y	Storm water channel classified as the Whitewater River, sewer force main siphons through the invert of the drainage conveyance system. 	3000	1009	See Attachment 	1009	3000	Drainage Conveyance System that discharges to surface water		See Attachment	Y	33.569393	-116.108688							07/01/2024 11:10	Measured Volume Spill Estimation	See Attachment	Damage by Others Not Related to Collection System Construction/Maintenance		Force Main; Siphon		Other (specify below)	Stainless Steel	25	See Attachment	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		See Attachment	Repaired Facilities or Replaced Defect		See Attachment	Not applicable	07/01/2024 14:34	See Attachment	N			Whitewater River	River		Whitewater River/Coachella Valley Stormwater Channel	None	Restricted Public Access		CVWD	14	N	Y	See Attachment	See Attachment										
8	8SSO10564	Active	Upland City CS	Upland City	895544	1.3	Certified	Nicole Kristin deMoet	Environmental Compliance Programs Manager	08-JUL-24	08-JUL-24	08-JUL-24	Category 1 Spill	1092 N. Mountain Ave.	07/03/2024 13:15	07/03/2024 13:25	07/03/2024 13:15	07/03/2024 21:11	24-3802		The spill occurred from a main line in a construction trench in the #2 lane when a contractor was installing fiber optic cable in front of 1092 N. Mountain Avenue.   Latitude: 40.741895  Longitude-73.989308	40.741895	-73.989308	Gravity Mainline			14814	The spill originated from 8  sewer main line damaged by a contractor installing fiber optic cable.  Contractor states that a rock from the spoils pile adjacent to a trench fell into the trench and cracked the top of the VCP pipe.  Flow from the main filled the trench and, upon full, spilled out from the trench to the street and along the curb and gutter.  Most of the spill was contained, however, an estimated (calculated) 814 gallons entered the catch basin and could not be collected.  much of the wastewater evaporated as a result of high temperature, but a portion was not contained.	Y	catch basin along Mountain Avenue adjacent to 1092 N. Mountain Ave.	14000	814	The spill originated from 8  sewer main line damaged by a contractor installing fiber optic cable.  Contractor states that a rock from the spoils pile adjacent to a trench fell into the trench and cracked the top of the VCP pipe.  Flow from the main filled the trench and, upon full, spilled out from the trench to the street and along the curb and gutter.  Most of the spill was contained, however an estimated 500 gallons entered the catch basin and could not be collected.  much of the wastewater evaporated as a result of high temperature, but some was not contained.	814	14000	Drainage Conveyance System		The spill occurred from a main line in a construction trench in the #2 lane when a contractor was installing fiber optic cable in front of 1092 N. Mountain Avenue.   Latitude: 40.741895  Longitude-73.989308	Y	40.741895	-73.989308	40.741895	-73.989308	40.741895	-73.989308	40.741895	-73.989308	07/03/2024 15:06	The calculation was performed utilizing the methodology provided in the Orange County Sanitation District Sewer spill estimation guide.  geometric area calculations were performed and multiplied by both the surface depths listed in the guide for asphalt and concrete (for the area/surface where applicable for either asphalt/roadway and curb and gutter).  Then the area was multiplied by the velocity of flow, volume per gallon (7.48) and spill time to get the total estimated gallons spilled.  Calculation can be provided upon request.	Estimation of spill start time was provided by contractor and confirmed per cell phone time of call records.  Spill end time was noted by spill response staff and confirmed via cell phone record.	Damage by Others Not Related to Collection System Construction/Maintenance		Gravity Mainline		Vitrified Clay		30	The spill originated from 8  sewer main line damaged by a contractor.  A rock from the spoils pile adjacent to a trench fell into the trench and cracked the top of the VCP pipe.  Flow from the main filled the trench and, upon full, spilled out from the trench to the street and along the curb and gutter.  City staff responded with 3 vactor trucks, a trash pump to divert/bypass flow between impacted manholes, and immediately placed containment at all impacted catch basins.  The vactor trucks on arrival immediately collected flow.  A total of 10 vactor decants were completed during installation and set up of the pump. Most of the spill was contained, however, an estimated (calculated) 814 gallons entered the catch basin and could not be collected.  much of the wastewater evaporated as a result of high temperatures over 100 degrees, but a portion was not contained. Impacts to the public were associated with traffic lane closures during the spill response and repair activities.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		The spill originated from 8  sewer main line damaged by a contractor.  A rock from the spoils pile adjacent to a trench fell into the trench and cracked the top of the VCP pipe.  Flow from the main filled the trench and, upon full, spilled out from the trench to the street and along the curb and gutter.  City staff responded with 3 vactor trucks, a trash pump to divert/bypass flow between impacted manholes, and immediately placed containment at all impacted catch basins.  The vactor trucks on arrival immediately collected flow.  A total of 10 vactor decants were completed during installation and set up of the pump. Most of the spill was contained, however, an estimated (calculated) 814 gallons entered the catch basin and could not be collected.  much of the wastewater evaporated as a result of high temperatures over 100 degrees, but a portion was not contained. Impacts to the public were associated with traffic lane closures during the spill response and repair activities.  	Repaired Facilities or Replaced Defect		The main line was repaired immediately and flow restored prior to the completion of spill response activities.	No major milestones other than required reinspection of the contractor's area was required.  However, the contractor will be contacted regarding spill liability and claims for damages by the City to recover costs from damages caused by the contractor.	07/03/2024 19:16	The spill originated from an 8  sewer main line damaged by a contractor installing fiber optic cable.  The contractor states that a rock from the spoils pile adjacent to a trench fell into the trench and cracked the top of the VCP pipe.  Flow from the main filled the trench and, upon full, spilled out from the trench to the street and along the curb and gutter.  Most of the spill was contained, however an estimated 814 gallons entered the catch basin and could not be collected.  Temperatures above 100 degrees led to evaporation at an increased rate preventing capture of the entirety of the volume discharged.	N			Upland Basin - no channel/ocean discharge	Other (specify below)	Upland basin - no channel/ocean discharge.  However, flow was not sizable to have reached the basin.	Upland basin - no channel/ocean discharge.  However, flow was not sizable to have reached the basin.	none	Other (specify below)	No public impact of water body.	No public impact of water body.	0	N	N	No public impact of water body. No samples collected.	No public impact of water body. No samples collected.										
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	895545	1.1	Certified	Ameal McLaurin	Sewer Supervisor 2		05-JUL-24	05-JUL-24	Monthly Category 3 Spill	6148 Hill Road, Oakland Ca.	07/01/2024 12:27	07/01/2024 13:00	06/28/2024 18:00				Lateral clean out (private) on the outside right side of the building, and inside the building shower drain and floor drains.	37.84401	-122.23299	Inside Building or Structure; Lateral Clean Out (Private)			189	Lateral clean out (private) on the outside right side of the building, where the sewage soaked into the soil. Inside the building from shower drain and floor drains where sewage flooded the bathroom, garage, hall, and storage room.	N						0	Building or Structure; Unpaved Surface		Lateral clean out (private) on the outside right side of the building, where the sewage soaked into the soil. Inside the building from shower drain and floor drains where sewage flooded the bathroom, garage, hall, and storage room.										06/01/2024 13:20	Shower in bathroom:3'L x 3'W x .08'D x 7.48-gal = 5 gallons Bathroom: 8'L x 7'W x .01'D x 7.48-gal = 4 gallons Hall: 14'L x 4'W x .08'D x 7.48-gal = 34 gallons Carpet in garage: 12'L x 12'W x .04'D x 7.48-gal = 43 gallons storage room: 8'L x 7'W x .02'D x 7.48-gal = 8 gallons Outside the building: Triangle: 15'L x 10'W x .5'D x 7.48-gal x .1875 / 2 =53 gallons 20'L x 3'W x .5'D x 7.48-gal x .1875 = 42 gallons Total spill: 5+4 + 34 + 43 +8 + 53 + 42 =189 gallons	Start time was based on eyewitness account. The end time was based on responding sewer crews restoring the flow in the mainline.	Pipe Structural Problem/Failure - Installation	Broken 6  VCP mainline.	Gravity Mainline		Vitrified Clay		120	Lateral clean out (private) on the outside right side of the building, where the sewage soaked into the soil. Inside the building from shower drain and floor drains where sewage flooded the bathroom, garage, hall, and storage room.	N	Other (specify below); Property Owner Notified; Restored Flow	Property owner was provided with a claim packet for restoration company to do cleanup and mitigation of the spill.	Property owner was provided with a claim packet for restoration company to do cleanup and mitigation of the spill.	Added Sewer to Preventive Maintenance Program; Repaired Facilities or Replaced Defect		Crews performed an emergency repair of the mainline. Dig tag W.O # 1537204. Mainline has been placed on a 6-month hydro high frequency maintenance program. W.O. # 1537320.		07/02/2024 01:00	Responding crews flushed and removed mud and clay pieces of pipe out of the mainline. Construction crew performed an emergency dig and repair spot on the mainline. CCTV inspection W.O # 1537474 has been created the expected date for completion is 7/12/24.		CCTV inspection W.O # 1537474 has been created the expected date for completion is 7/12/24.	07/12/2024 14:30														N/A	Crews performed an emergency repair of the mainline. Dig tag W.O # 1537204. Mainline has been placed on a 6-month hydro high frequency maintenance program. W.O. # 1537320.	Mainline has been placed on a 6-month hydro high frequency maintenance program. W.O. # 1537320.	Crews performed an emergency repair of the mainline. Dig tag W.O # 1537204.	CCTV inspection W.O # 1537474 has been created the expected date for completion is 7/12/24.	N/A	Crews performed an emergency repair of the mainline. Dig tag W.O # 1537204. Mainline has been placed on a 6-month hydro high frequency maintenance program. W.O. # 1537320. CCTV inspection W.O # 1537474 has been created the expected date for completion is 7/12/24.	Crews performed an emergency repair of the mainline. Dig tag W.O # 1537204. Mainline has been placed on a 6-month hydro high frequency maintenance program. W.O. # 1537320. CCTV inspection W.O # 1537474 has been created the expected date for completion is 7/12/24.	CCTV inspection W.O # 1537474 has been created the expected date for completion is 7/12/24.	
1	1SSO10028	Active	Forestville Water District CS	Forestville Water District	895546	1.2	Certified	Cory Ipsen	Chief Plant Operator		05-JUL-24	05-JUL-24	Monthly Category 3 Spill	Trenton Rd. and Trenton Ct.	07/04/2024 10:40	07/04/2024 11:00	07/04/2024 08:40				Man hole at the intersection of Trenton Rd. and Trenton Ct.	38.49035	-122.89554	Manhole			450	Spill flowed to low spot on asphalt near intersection of Mirabel Rd. and Trenton Rd. where it caused a puddle	N						0	Paved Surface		Spill flowed to low spot on asphalt near intersection of Mirabel Rd. and Trenton Rd. where it caused a puddle approximately 150 feet from where it surfaced at the man hole.	Y	38.49037	-122.8953							07/04/2024 12:10	Estimate was made by the responding operator who made a visual estimate of flow and and multiplied that by the number of minutes the spill occured. Max flow was 2 GPM and average was closer to 1 GPM chose to use the higher number to be safe	Customer notified the operator that they saw the spill earlier in the morning than original arrival, operator arrived 20 minutes after notification and was present until spill stopped	Debris from Construction; Debris-wipes/Non-disposables		Gravity Mainline		Polyvinyl Chloride (PVC)		25	Spill was small and only caused puddling in a low spot that evaporated before the vactor was done cleaning and jetting the blockage	N	Mitigated Effects of Spill (specify below); Restored Flow		Spill was small and only caused puddling in a low spot that evaporated before the vactor was done cleaning and jetting the blockage	Other (specify below)	Removed larger debris that was not flowing down mainline after jetting and clearing flow	We inspected the mainline and found Larger rocks and debris that caused  flushable wipes  to build up removed Larger rocks and debris and cleaned the main line		07/04/2024 16:00	There was a large piece of debris found by our operator that was causing a large quantity of flushable wipes to build up causing the backup and spill. Large pieces of debris have been removed and inspections will be more frequent to be sure that there is no other pieces of debris in the main line that could cause this to happen again.		Inspections will be more frequent looking for signs of debris build up and the source of debris.	07/05/2024 10:11														None	We will be increasing manhole inspections in that area looking for signs of debris build up starting	We are already contracted to Have maintenance done and we will be increasing operator inspections in the area	No rehab or replacement is needed. Looks to have been an issue with large debris build up	NA	NA	NA	None	Inspections will be more frequent looking for signs of debris build up and the source of debris.	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	895550	1.1	Certified	Kent Vian	Asst. Deputy Director		22-JUL-24	22-JUL-24	Monthly Category 3 Spill	NOT-40201125429-728 PACIFIC BEACH DR.	07/05/2024 22:57	07/05/2024 23:30	07/05/2024 22:55				THE SPILL ORIGINATED FROM A GATE VALVE CAP THAT IS CONNECTED TO A 16  FORCE MAIN EQ#10261840 IN FRONT OF PUMP STATION#17, SOUTHBOUND OF ADDRESS 728 PACIFIC BEACH DR.	32.79087	-117.25396	Force Main; Pump Station	N/a	N/A	278	THE EXTENT OF THE SPILL BOUNDARIES WAS 16  FORCE MAIN GATE VALVE HEADED SOUTHEAST INTO A STORM DRAIN AND ENDED IN PUMP STATION#17.	Y	THE STORM DRAIN CONVEYANCE SYSTEM IS AN UNDERGROUND PIPELINE THAT OPENS UP TO PUMP STATION#17.	278				278	Drainage Conveyance System; Street/Curb and Gutter (2 3)	PUMP STATION#17.	THE EXTENT OF THE SPILL BOUNDARIES WAS 16  FORCE MAIN GATE VALVE HEADED SOUTHEAST INTO A STORM DRAIN AND ENDED IN PUMP STATION#17.	Y	32.79086	-117.25391							07/06/2024 12:00	VISUAL CALCULATED METHOD.	THE START TIME IS DETERMINED BY WHEN DISPATCH RECEIVES THE CALL FROM THE CUSTOMER REPORTING THE SPILL TO THE TIME WE MAKE A POSITIVE VISUAL END TIME.	Pump Station Failure - Mechanical	16  FORCE MAIN FAILURE.	Force Main; Pump Station - Mechanical	N/A	Vitrified Clay	N/A	53	THE SPILL'S IMPACT WAS TO THE STREET, CURB, GUTTER, STORM DRAIN AND PUMP STATION #17.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Returned All Spill to Sanitary Sewer System	N/A	CREWS CONTAINED THE SPILL BY USING A COMBINATION TRUCK UPON ARRIVAL. THE CREWS WASHED DOWN THE STREET, CURB, AND GUTTER. WE RECOVERED ALL SEWER SPILLS FROM THE STORM DRAIN; THE REST WENT INTO PUMP STATION#17.	Adjusted Schedule/Method of Preventive Maintenance; Repaired Facilities or Replaced Defect	N/A	NONE AT THIS TIME.		07/06/2024 12:00	NO FINDINGS AT THIS TIME.		NO.	07/08/2024 08:07														N/A	NONE AT THIS TIME.	NONE AT THIS TIME.	NONE AT THIS TIME.	N/A	N/A	N/A	NONE AT THIS TIME.	NO.	
5F	5SSO11297	Active	Fresno Co 41-Shaver Lake CS	County of Fresno	895558	1.1	Certified	Eva Frias	Program Technician		08-JUL-24	08-JUL-24	Monthly Category 3 Spill	Wild Iris Ln, Shaver Lake	07/05/2024 10:10	07/05/2024 11:00	07/04/2024 00:00				Manhole clogged with sticks which was blocking flow. Staff cleared the block. Unknown responsible party. 	37.05949	-119.32458	Manhole			300	See attached photos with descriptions. 	N						0	Unpaved Surface		Spill traveled 10 to 15ft on dirt surface and was absorbed in the ground. See attached photos. 										07/05/2024 11:30	Manhole only serves three homes. Gallons were estimated based on increased holiday flows and effected spill area. 	Field staff assessments. 	Other (specify below)	Several sticks were found in the manhole. Operators were unsure how sticks got into the sewer system. 	Manhole		Concrete		49	Small runoff absorbed by ground.	N	Cleaned Up (specify below)		Spill was absorbed into ground. Staff picked up debris and sprayed the affected area with chlorine solution.	Adjusted Schedule/Method of Preventive Maintenance		Staff checked other manholes in the area to ensure there were no sticks clogging the flow. 		07/05/2024 11:30	Manhole was backed up, unknown responsible party. 		None.	07/05/2024 11:30														No enforcement action taken. 	N/A 	N/A	N/A	N/A	N/A	N/A	N/A	None.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	895559	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	08-JUL-24	31-JUL-24	31-JUL-24	Category 2 Spill	425 28th St.	07/07/2024 03:00	07/07/2024 04:30	07/07/2024 02:45	07/08/2024 10:20	24-3861		Descriptions and photos are provided under attachments. This complaint was a overflow, main sewer line was plugged. Sewer water was in a lower level parking lot under ground in a apartment building. We talked to building manager, took photos of the area and had to hydro flush the main sewer line, main sewer line had medium to heavy grease and was able to restore flow. All sewage remained puddling in garage area. Drainage system in garage appeared to be plugged, not allowing sewage to flow through drain system. Provided Maeve Brown (510-703-5328) with claim packet.	37.81639	-122.26603	Inside Building or Structure			2902	Pictures down loaded into attachments.	N						0	Building or Structure	Parking garage.	Parking garage.	Y	37.81639	-122.26603							07/07/2024 14:45	86' L x 55' W x .083' D x 7.48 gal = 2902 gallons.	Start time was based on eyewitness account. End time was based on responding sewer crew restoring the flow.	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		125	Descriptions and photos are provided under attachments. This complaint was an overflow, main sewer line was plugged. Sewer water was in a lower-level parking lot underground in an apartment building. We talked to building manager, took photos of the area and had to hydro flush the main sewer line, main sewer line had medium to heavy grease and was able to restore flow. All sewage remained puddling in garage area. Drainage system in garage appeared to be plugged, not allowing sewage to flow through drain system. Provided Maeve Brown (510-703-5328) with claim packet.	N	Contained All or Portion of Spill; Other (specify below); Property Owner Notified; Restored Flow	Claim packet was provided to citizen to do a recovery of spill, cleanup and mitigation of the affected spill areas.	Claim packet was provided to citizen to do a recovery of spill, cleanup and mitigation of the affected spill areas.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Mainline added to a six-month high frequency hydro maintenance program. # 1539668	Mainline added to a six-month high frequency hydro maintenance program. # 1539668	07/09/2024 15:15	CCTV report found grease and root intrusion to had been the potential cause of the overflow.	N		07/09/2024 15:15										Y													
4	4SSO10373	Active	Burbank City, Public Works CS	Burbank City DPW	895564	1.3	Certified	Stephen Walker	Assistant Public Works Director - Wastewater	08-JUL-24	16-JUL-24	16-JUL-24	Category 1 Spill	Hollywood Way and San Fernando Intersection - West Side Parkway	07/02/2024 07:30	07/02/2024 09:10	07/02/2024 07:30	07/02/2024 11:10	24-3758		The SSO originated from the pick hole of City sewer manhole 20-023 which is located approximately at GPS coordinates: 34.20466, -118.34928. This particular manhole is located in the west sidewalk parkway, south of the intersection of N. Hollywood Way and N. San Fernando Blvd. 	34.20466	-118.34928	Manhole	N/A	N/A	12000	An obstruction occurred in the City sewer main due to the presence of rags resulting in sewage discharging out of the upstream manhole (City sewer manhole 20-023) through the pick hole. This particular manhole is located in the west sidewalk parkway, south of the intersection of N. Hollywood Way and San Fernando Blvd. and the overflow spilled into the adjacent planters before overflowing into the gutter, whereupon it traversed approximately 160 feet before entering the catch basin on the south-west portion of the curb. Please refer to the photos attached.   The total initial overflow estimate was calculated by multiplying the flow rate by the time of the overflow (Volume = Flow Rate X Flow Time). The flow rate was determined using the Southern Section Collection Systems Committee's (SSCSC) Manhole Overflow Gauge.  Please refer to the attached calculations.   Please note that the amount of sewage overflow into adjacent planters (contained/infiltrated) is still being investigated. 	Y	This SSO originated from City sewer manhole 20-023, which is located in the west sidewalk/parkway located south of the intersection of N. Hollywood Way and N San Fernando Blvd., and the sewage spilled into the adjacent planters before overflowing into the street's gutter, whereupon it traversed approximately 160 feet before entering the catch basin on the south-west portion of the curb. The catch basin drains into a storm drain system that traverses approximately 5,950 feet before flowing into the Lockheed channel.   No flows were observed to have reached the Lockheed channel connection point. 	0	12000	The Initial Investigation Report of the SSO includes photos of the receiving catch basin and SSO source location. Please refer to the attached Initial Investigation Report, which was prepared by the City's contractor, Inframark. 	12000	0	Drainage Conveyance System that discharges to surface water	N/A	The SSO originated from the pick hole of City sewer manhole 20-023 which is located approximately at GPS coordinates: 34.20466, -118.34928. This particular manhole is located in the west sidewalk parkway, south of the intersection of N. Hollywood Way and N. San Fernando Blvd.   The destination of the SSO was the stormwater catch basin located approximately 320 feet downstream at coordinates 34.20429, -118.34903. The catch basin drains into a storm drain system that traverses approximately 5,950 feet before flowing into the Lockheed channel. 	Y	34.20429	-118.34903							07/02/2024 09:30	The overflow estimate was calculated by multiplying the flow rate by the time of the overflow (Volume = Flow Rate X Flow Time). The flow rate was determined using the Southern Section Collection Systems Committee's (SSCSC) Manhole Overflow Gauge. Measurements were taken of the planters and two tree wells where a portion of the SSO was contained. The resultant volume contained in the planters/tree wells was deducted from the total overflow estimate calculation. Please refer to the attached Final Calculations.   Please note that an additional portion of the SSO volume may have infiltrated into the planters; however, only the volume detained in the planters was deducted from the aforementioned calculations as the infiltration rate is unknown.   It was estimated that 11,818 gallons of raw sewage entered the storm drain system (12,000 gallons - 182 gallons detained).  	It is assumed that the SSO started at approximately the time of the phone call by Mr. Erwin Hermann at 7:30 AM. There was mention by the caller that the overflow had potentially been going on previously before he called in, but he could only speculate and could not provide a specific start time.   The overflow estimate was calculated by multiplying the flow rate by the time of the overflow (Volume = Flow Rate X Flow Time). The flow rate was determined using the Southern Section Collection Systems Committee's (SSCSC) Manhole Overflow Gauge. Measurements were taken of the planters and two tree wells where a portion of the SSO was contained. The resultant volume detained in the planters/tree wells was deducted from the total overflow estimate calculation. Please refer to the attached calculations and the information in responses above.	Debris-Rags	N/A	Manhole	N/A	Vitrified Clay	N/A	76	The sewage spilled into the adjacent planters before overflowing into the street's gutter, whereupon it traversed approximately 160 feet before entering the catch basin on the south-west portion of the curb (please note that the total distance from the manhole appearance point to the catch basin is approximately 320 feet as documented by the City sewer crew). The catch basin drains into a storm drain system that traverses approximately 5,950 feet before flowing into the Lockheed channel. No flows were detected to have reached the discharge point into the Lockheed channel. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow	N/A	After the blockage in the City sewer main was cleared, the area was chlorinated, washed down and vacuumed, and the clean-up water was returned to the sanitary sewer system.  	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below)	The surrounding businesses/facilities that discharge into this sewer reach were educated regarding the cause of SSO's (including but not limited to rags/FOG/non-flushable wipes), and storm-water BMP's.	The surrounding businesses/facilities that discharge into this sewer reach were educated regarding the cause of SSO's (including but not limited to rags/FOG/non-flushable wipes), and storm-water BMP's.  The scheduled maintenance frequency for this sewer reach has been increased to ensure that rags do not consistently build up. 	Scheduled maintenance frequency increased to once every two weeks.	07/08/2024 10:45	An obstruction occurred in the City sewer main due to the presence of rags resulting in sewage discharging out of the upstream manhole (City sewer manhole 20-023) through the pick hole. This particular manhole is located in the west sidewalk parkway, south of the intersection of N. Hollywood Way and San Fernando Blvd. and the overflow spilled into the adjacent planters before overflowing into the gutter, whereupon it traversed approximately 160 feet before entering the catch basin on the south-west portion of the curb. The catch basin drains into a storm drain system that traverses approximately 5,950 feet before flowing into the Lockheed channel.   It was estimated that 11,818 gallons of raw sewage entered the storm drain system (12,000 gallons - 182 gallons contained). 	N	N/A		See Item 14.B below.	Other (specify below)	Lockheed Channel, which drains into the Burbank Western Channel, then the LA River, and eventually into the ocean. 	Lockheed Channel, which drains into the Burbank Western Channel, then the LA River, and eventually into the ocean. 	None	Other (specify below)	No closures occurred. 	N/A	0	N	N	Please note that the City's contractor (Inframark) attempted to collect samples, but there was no longer any discharge that could be sampled when they arrived onsite at 11:45 AM on 07/02/24.	N/A									N/A	
9	9SSO10654	Active	City of Lemon Grove CS	Lemon Grove City	895570	1.1	Certified	Israel Murguia	Public Works Director		08-JUL-24	08-JUL-24	Category 1 Spill	1850 Bakersfield Street	07/06/2024 19:30	07/06/2024 20:00	07/06/2024 12:00	07/06/2024 21:25	24-3838	08-JUL-24	The spill occurred within a natural earthen drainage channel east of Bakersfield Street south of Ensenada Street. See Attachment for photos 	32.724336	-117.035516	Manhole			16000	See Attachment. 	Y	Spill entered a culvert at Lemon Grove Ave and Canton Drive. An 18  RCP pipe traverses west under Lemon Grove Ave and then traverses south. An outfall is located just southwest of the MTS Trolley Station located at 1787 San Altos Place, Lemon Grove, CA 91945, where a pool of water was identified. 	0	500	While spill entered MS4 system and natural earthen drainage facility, spill did not reach surface waters (Chollas Creek). See Attachment	0	0	Drainage Conveyance System		Spill entered a culvert at Lemon Grove Ave and Canton Drive. SSO made its way through a 30  RCP traversing under Lemon Grove Ave and discharged and collected outside an outfall within an earthen channel southwest from MTS Massachusetts Trolley Station located at 1787 San Altos Place, Lemon Grove, CA 91945. 	Y	32.722962	-117.040212							07/06/2024 20:50	Staff utilized the SSCSC Manhole Overflow Gauge (Attachment) through field observation and matching to guide which provides an estimate of 150-200 GPM. Staff utilized 200 GPM and multiplied it by 80 minutes which was the spill duration, from the point staff was made aware of spill and when flow was restored. S	tart time provided was used for entry purposes. There is no known reference of actual spill start time, however, it is presumed to have occurred before the notification received as effluent backup had to flow out from a 12' manhole. As such the start time used for estimating the spill was from the point that staff was notified of spill (19:30) and when flow was restored (20:50). 	Debris-General; Debris-wipes/Non-disposables		Gravity Mainline; Manhole		Vitrified Clay		77	Minimal impact, spill quickly was absorbed into soil, natural vegetation, and minimal ponding. 	N	Mitigated Effects of Spill (specify below); Restored Flow		Staff focused on restoring flow. Clean-up efforts included sanitizing the next morning (7/7/24) and capturing of spill from catch basin and inlets. 	Plan Rehabilitation or Replacement of Sewer		Staff to assess  replacing manholes with locking lids. Location to be added to hotspot list for inspection. 	Locking manhole lids (December 2024) Inspections (Monthly)	07/06/2024 20:50	A rock was the base of the buildup which caused wet wipes to get caught up on it and made a dam preventing water from going down stream.	N			Earthen drainage facility 	Other (specify below)	Spill did not reach surface waters. 	Downstream surface waters is Chollas Creek, which spill did not reach. 	None. 	Other (specify below)	N/A	N/A	0	N	N												
2	2SSO10179	Active	San Jose City CS	San Jose City	895584	1.1	Certified	Ben Nguyen	Senior Engineer		31-JUL-24	31-JUL-24	Monthly Category 3 Spill	1530 Southwest Exwy San Jose CA 95126	06/25/2024 11:38	06/25/2024 12:01	06/25/2024 03:30				The spill appearance point was in the parking lot of the property 1530 Southwest Expwy.  The spill appearance point was a private plumbing fixture in the parking lot.	37.30985	-121.91673	Inside Building or Structure	Underground parking lot private plumbing fixture.		330	One appearance point in the underground parking lot of 1530 Southwest Expwy.  All of the spill was contained within the underground parking lot.  The spill map is included in the attachments showing the extent of the spill.	N						330	Building or Structure		The SSO was all contained inside the parking structure.  	Y	37.35158	-121.91673							06/25/2024 12:12	The total and recovered spill volume was estimated using measurements and flow rate/ duration.  For underground garage the crew recorded spill measurements along with the depth of the spill area. 	The reporting party (RP, a maintenance staff of the private apartment) noticed the spill 04:00.  At that time, the RP stated that the spill was contained in the garage.  Based on RP's provided information, it was assumed that the SSO likely started sometime shortly before the RP saw the spill at 04:00 that day.  The start time of the SSO is assumed to have started around 03:30 on 6/25/2024	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		62	No impact to local waterways as the spill was contained within the underground garage.  No lasting impact to the area due to RP noticing the spill right away and crew cleaning the area.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	The crew contained all the spill within the parking structure.  The crew conducted cleanup of the spill using vactor truck to flush and recover all the sewage and induced water.	Upon arrival, City's crew immediately cleared the plug in the mainline stopping the overflow inside the garage.  The crew contained all the spill within the parking structure.  The crew conducted cleanup of the spill using vactor truck to flush and recover all the sewage and induced water. Pictures of the containment were added to the attachments tab	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause		The sewer segment was immediately inspected with CCTV following the overflow event in order to determine the cause. Further corrective actions the city has planned for this segment include: 1. Adjusting the cleaning frequency from 4 years to 3 months- Completed on 7/10/2024 2. Distribute grease flyers to nearby residents 3. Investigate nearby businesses that have grease production within the area. 4. Coordinate with DPW's master planning to analyze capacity in nearby sanitary sewer system. 5. Re-video in 3 months schedule; due in October 2024.		06/25/2024 14:00	While the responding crew cleared the blockage in the plugged sanitary mainline, the other member documented their findings. A pipe basket was used to collect the grease that was removed while clearing the blockage within the mainline. After conducting a follow up CCTV of the sanitary mainline pipe, there were no other major O&M observation or structural defects that may have contributed to the blockage. 		All investigation efforts concluded on 7/10/2024 	07/10/2024 15:00														N/A	The city has planned the following O&M modifications to prevent any repeat of the spill event: 1. Adjusting cleaning frequency from 4 years to 3 months- Completed on 7/10/2024 2. Re-video in 3 months schedule due in October 2024.	Adjusting cleaning frequency from 4 years to 3 months- Completed on 7/10/2024	N/A	Problem sanitary sewer asset was inspected with CCTV after the SSO on 6/25/2024. No major structural defects were found. 	Coordination with DPW's master planning to analyze capacity in nearby sanitary sewer system.	Documentation of implemented and planned system O&M modifications is included in the attachments tab. 	NA	All investigation efforts concluded on 7/10/2024 	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	895590	1.2	Certified	John J. Hough	San Dist. Superintendent	10-JUL-24	19-JUL-24	19-JUL-24	Category 1 Spill	345805	07/06/2024 10:25	07/06/2024 10:50	07/06/2024 09:30	07/06/2024 15:01	24-3830		See Attached Spill Map with Photos	38.55564	-121.2264	Lateral Clean Out (Public)			900	See Attached Spill Map with Photos	Y	See Attached Spill Map with Photos	816	0	See Attached Spill Map with Photos	77	823	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		See attached Spill Map with Photos.	Y	38.55564	-121.22632	38.5555	-121.2263	38.5514	-121.2324			07/06/2024 12:30	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Other (specify below)	Mechanical plug in downstream manhole.	Gravity Mainline		Vitrified Clay		2	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified the City of Rancho Cordova and the Sacramento County Environmental Management Department.	See Attached Description of Spill Event.	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Removed mechanical plug to restore flow.	SacSewer inspected the main line with CCTV on July 8, 2024. Based on the findings no further action is required.	SacSewer removed the mechanical plug on July 6, 2024.	07/06/2024 17:24	See Attached Description of Spill Event.	N			Unnamed Pond	Other (specify below)	Pond	The pond had stagnant high volume of water.	No observed impacts to aquatic life.	Other (specify below)	No public access impacts. SacSewer placed contamination warning signs.	N/A	0	N	N												
5F	5SSO11311	Active	MD-22A Oakhurst CS	Madera County Public Works Department - Special Districts	895597	1.3	Certified	Chad Brown	Utility Manager		10-JUL-24	10-JUL-24	Monthly Category 3 Spill	Red Bud Lift Station	07/08/2024 07:00	07/08/2024 07:05	07/08/2024 06:50				Sewage appeared to have ran through rip rap and just slightly down gradient from lift station manhole	37.3333	-119.67031	Pump Station	Sewage came from the picking hole from the pump station manhole.		300	No visible standing water, the area is sandy/loam and just slightly saturated ground in immediate pump station vicinity 	N						0	Unpaved Surface		Spill destination is only 20' from pump station 	Y	37.33332	-119.67037							07/08/2024 07:10	Visual estimate of spill amount, short time frame of spill duration	Visual estimate of spill amount, short time frame of spill duration	Debris-Rags; Debris-wipes/Non-disposables; Pump Station Failure - Controls; Pump Station Failure - Mechanical		Manhole; Pump Station - Controls		Polyvinyl Chloride (PVC)		12	No visible impact to property surrounding pump station	N	Other (specify below)	Cleaned area, mitigated pump station control issue	The pump station had an influx of rags, and a control panel that overheated causing pump control power to trip. The alarm notification from a nearby resident allowed for quick response by County staff.	Adjusted Schedule/Method of Preventive Maintenance		Working with a local systems integrator to reestablish remote telemetry communication 		07/10/2024 11:03	Spill was caused by multiple worst case scenario items. Remote SCADA  telemetry programming had dropped out. There was an influx in rags to the pump station restricting check valve flow. The local area was experiencing record heat waves causing the air conditioning for the pump control panel to go out. All of these tripped the pumps out and they failed to pump. A nearby resident who is familiar with our staff called us to notify due to an onsite, audible/visible alarm. Staff was onsite quick to reset pumps.  		N/A	07/10/2024 11:21														N/A	Replace air conditioning unit on panel to prevent control power failure, Working with a local systems integrator to reestablish remote telemetry communication 	Keep pump maintenance regular to prevent excessive trash accumulation 	N/A	Pump maintenance and pump station cleaning performed 7/8/24	N/A	Log book records	N/A	N/A	
2	2SSO10164	Active	Palo Alto Regional CS	Palo Alto City	895601	1.1	Certified	Anthony Meneses	WGW Operations Manager		24-JUL-24	24-JUL-24	Monthly Category 3 Spill	550 Santa Rita Ave	06/04/2024 09:33	06/04/2024 10:20	06/04/2024 09:00				See attachments	37.436583	-122.138635	Lateral Clean Out (Public)			100	See attachments	N						95	Street/Curb and Gutter (2 3)		See below for coordinates Failure location - 11d and 11e End Point - 11f and 11g 	Y	37.436922	-122.138349	37.436512	-122.137457					06/04/2024 10:35	See attachments	See attachments	Root Intrusion		Gravity Mainline		Vitrified Clay		100	spill at curb/gutter/streets. Minimal impact on traffic and surrounding areas	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Stopped at the curb and gutter	Adjusted Schedule/Method of Preventive Maintenance; Plan Rehabilitation or Replacement of Sewer		Main is proposed to be replaced in 2028. In the meantime, we will continue to monitor the mainline. We will change the cleaning schedule from every 3 years to annually		06/04/2024 12:45	Main holding caused by roots in the system. 		N/A	06/04/2024 14:11														N/A	Main is proposed to be replaced in 2028. In the meantime, we will continue to monitor the mainline. We will change the cleaning schedule from every 3 years to annually	We will change the cleaning schedule from every 3 years to annually	Main is proposed to be replaced in 2028.	Main is proposed to be replaced in 2028.	Main is proposed to be replaced in 2028.	In excel sheet	Main is proposed to be replaced in 2028. In the meantime, we will continue to monitor the mainline. We will change the cleaning schedule from every 3 years to annually	N/A	
5S	5SSO11001	Active	Modesto CS	Modesto City	895609	1.1	Certified	Robert Englent	Wastewater Collection System Superintendent		04-SEP-24	04-SEP-24	Monthly Category 3 Spill	2001 Edgebrook Drive	07/05/2024 13:30	07/05/2024 14:30	07/05/2024 13:30				The spill appearance point closest to the failure point (pump station) is MH#SS012719.	37.65042	-120.96257	Manhole		MHSS013901 and MHSS012718	500	Approx. 10 ft. area N/E of MHSS012719 and approx. 75 ft. by 20 ft. behind the park bathrooms. See Attachments	N						405	Paved Surface; Unpaved Surface		Sidewalk on the East side of the park bathrooms and the dirt area behind the park bathrooms.	Y	37.65022	-120.96299	37.65042	-120.96255					07/05/2024 13:50	The bathrooms were not in use. The water valve to one of the toilets was stuck in the on position with the flow rate estimated at 25 GPM.  The pump station was ragged up with clothing from the park bathrooms. The park bathrooms are the only laterals to the pump station. The pump mechanic was on site when the first MH spilled at 13:30 and he de-ragged the pump to break the stoppage at 13:50. Therefore the flow rate was 25 GPM for 20 minutes. 500 gallons spilled. 405 gallons recovered and 95 gallons lost to land.  See Map showing that the restrooms are the only laterals for this pump station. See attachments.	The pump mechanic was on site when the first MH spilled at 13:30 and he de-ragged the pump to break the stoppage at 13:50.  See Attachments.	Debris-Rags; Pump Station Failure - Mechanical		Pump Station - Mechanical		Cast Iron; Other (specify below); Vitrified Clay	Inlet to lift station is VCP. Outlet to lift station is CIP.	32	Sidewalk on the East side of the restrooms and the dirt area on the South side of the restrooms. See Attachment. 	N	Cleaned Up (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		The spill was naturally contained in the dirt area behind the park restrooms. The assist crew used a Vac-con to vacuum up the spill and wash down the area. The crew then cleaned the 3 line segments leading to the pump station.	Adjusted Schedule/Method of Preventive Maintenance; Repaired Facilities or Replaced Defect		The pump mechanics have incorporated checking the park restrooms as part of their weekly pump station inspections. 		07/05/2024 15:57	Articles of clothing were found in the pump at the lift station. The park restrooms are the only facilities connected to the station. The cause was a combination of the pump getting ragged up and a water valve stuck open.		N/A	07/05/2024 15:57														N/A	The pump mechanics have incorporated checking the park restrooms as part of their weekly pump station inspections. 	Same as 20.b. and 20.d.	N/A	Pump was cleared of all ragging. 	N/A		N/A	N/A	
9	9SSO10680	Active	Padre Dam CS	Padre Dam Municipal Water District	895622	1.3	Certified	Paul Clarke	Director of Operations	12-JUL-24	23-JUL-24	23-JUL-24	Category 2 Spill	Graves Ave SSO (8717)	07/11/2024 05:53	07/11/2024 06:43	07/11/2024 05:25		-		Spill originated from a clean-out pressure relief valve located in the front yard at 8717 Graves Ave.	32.83334	-116.96141	Lateral Clean Out (Private)			2370	Spill appeared from the private cleanout in the front yard of 8717 Graves Ave.  The entire spill volume remained in the grass/dirt front yard and soaked into the ground.  Paper and solids were recovered from the front yard with a Vactor.	N						0	Unpaved Surface		Spill originated from a clean-out pressure relief valve located in the front yard at 8717 Graves Ave.  The entire spill volume remained in the grass/dirt front yard of the residence.	Y	32.83334	-116.96141							07/11/2024 06:44	Spill volume was determined by visual estimation.  Visual estimation was based on determining how many 5-gallon buckets would fill within a minute and then multiplied by the time the spill was active.  The entire spill volume soaked into the ground in the front yard of the residence.	Spill volume was determined by visual estimation.  Visual estimation was based on determining how many 5-gallon buckets would fill within a minute and then multiplied by the time the spill was active.  The entire spill volume soaked into the ground in the front yard of the residence.	Debris-wipes/Non-disposables		Gravity Mainline		Acrylonitr. Butadiene Styrene (ABS)		53	Entire spill was naturally contained in front yard or residence and soaked into the ground.  Paper/solids were cleaned up with Vactor by Padre Dam staff.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow		Once the spill was verified, sandbags were placed around nearby storm drain inlets in case spill overcame the natural slope of the front yard.  Vactor was used to clear blockage in gravity main and spill stopped.  A large amount of wipes were removed from blockage point.  Entire spill volume soaked into front yard and paper/solids were cleaned up with Vactor by Padre Dam staff.  	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Once blockage was cleared, District staff proceeded to clean approximately 2,700 feet of nearby sewer main to ensure another spill did not occur.  The cleaning schedule will be changed from regular 14-month interval to a six-month frequency to reduce chances of future spills.  MH1096 will also have SmartCover device installed to monitor flow levels.	1. 2,700 feet of nearby sewer main cleaned on 7/11/24. 2. Cleaning schedule changed from 14-months to 6-months. 3. SmartCover device to be installed in MH1096 by October 2024. 	07/11/2024 08:29	While clearing blockage a trap and fork were used to catch any debris from flowing downstream.  A large amount of wipes were removed from the sewer system and this was determined to be the cause of the spill.  CCTV inspection was also conducted after the blockage was cleared and no other defects/problems were observed.  	N												N													
5S	5SSO10896	Active	City Of Lakeport CS	Lakeport City	895623	1.3	Certified	Jen Baker 	Compliance Officer 	11-JUL-24	11-JUL-24	11-JUL-24	Category 2 Spill	901 Larrecou Lane 	07/09/2024 19:32	07/09/2024 19:32	07/09/2024 19:32	07/09/2024 21:12	24-3924		see attachment	39.02114	122.55138	Manhole; Other (specify below)	Wet well to pump station	2 manholes and wet well - please see attached report for full narrative 	1600	See attachment 	N						1600	Paved Surface; Unpaved Surface		The spill destination was contained to approx 150ft north and 200 ft south of all 3 start points. Spill onto paved and unpaved road to PW Corp Yard and inside PW Corp Yard 	Y	39.02114	122.55138							07/09/2024 19:49	area/volume measures, and duration/flow rate 	PW staff was onsite at start and end of SSO	Pump Station Failure - Power		Pump Station - Power		Other (specify below)	Failure was at the wet well for the pump. City-wide power outage occurred and the backup generator failed to start 	0	Minimal impact due to staff on site at start and close proximity of additional response staff. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Returned All Spill to Sanitary Sewer System	please see attached report for full narrative of response activities 	Berms, gravel, sand, and absorbents were placed, and wet/dry disinfectant was applied, Aqua Tech used to capture spill. Please see attached for full detail.	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below)	The generator vendor will provide a full inspection, and backup generator testing will increase weekly and include a battery check with a simulated load. 	The generator vendor will provide a full inspection, and backup generator testing will increase weekly and include a battery check with a simulated load. 	The vendor will inspect the generator within the next 30-60 days - increased testing, including battery check starts immediately 	07/10/2024 11:00	City-wide power outage and backup pump station generator failure due to drained battery	N												N													
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	895625	1.1	Certified	David Leamer	Assistant Superintendent		29-JUL-24	29-JUL-24	Monthly Category 3 Spill	344009	06/03/2024 08:19	06/03/2024 08:19	06/03/2024 07:00				See Attached Spill map with Photos.	38.67602	-121.33691	Lateral Clean Out (Private)			158	See Attached Spill Map with Photos	Y	See Attached Spill map with Photos.	11				133	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		See attached Spill Map with Photos.	Y	38.67575	-121.33683	38.67552	-121.33643					06/03/2024 08:19	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		69	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		See Attached Description of Spill Event	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		See Attached Description of Spill Event.		06/03/2024 11:18	The private cleanout overflowed to an unpaved surface, sidewalk, curb, gutter, and storm drain inlet at 5437 Tiburon Way. M&O cleaned all above-ground surfaces in contact with the spill and hydro-vacuumed the affected storm drain system from the SD inlet to the SDMH at 6070 Garfield Avenue.		None	06/03/2024 11:18														N/A	SacSewer increased preventive cleaning frequency from 12 months to 6 months.	SacSewer increased preventive cleaning frequency from 12 months to 6 months.	N/A	SacSewer inspected mainline with CCTV on 6/17/24.	N/A	SacSewer increased preventive maintenance frequency on 7/11/24	N/A	None	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	895629	1.2	Certified	John J. Hough	San Dist. Superintendent	11-JUL-24	23-JUL-24	23-JUL-24	Category 1 Spill	345852	07/08/2024 11:59	07/08/2024 12:40	12/01/2023 10:00	07/09/2024 12:03	24-3909		See Attached Spill Map with Photos	38.40453	-121.46456	Force Main			1105	See Attached Spill Map with Photos	Y	See Attached Spill Map with Photos	0	0	See Attached Spill Map with Photos	275	2	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		See attached Spill Map with Photos.	Y	38.4046	-121.4644	38.4043	-121.4653	38.4052	-121.4622			07/09/2024 10:50	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Other (specify below)	Pipe Structural Problem/Failure - Failed Joint	Force Main		Polyvinyl Chloride (PVC)		23	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Returned Portion of Spill to Sanitary Sewer System	Notified the City of Elk Grove and the Sacramento County Environmental Management Department.	See Attached Description of Spill Event.	Repaired Facilities or Replaced Defect		SacSewer repaired the force main on July 11, 2024.	SacSewer repaired the force main on July 11, 2024.	07/09/2024 12:00	See Attached Description of Spill Event.	N			Unnamed Tributary to Stone Lakes	Stream/Creek		The surface water is a concrete-lined / earthen-lined stream with high volume stagnant flow.	No observed impacts to aquatic life.	Other (specify below)	No public access impacts.	N/A	0	N	N												
8	8SSO10542	Active	Anaheim City CS	Anaheim City	895630	1.3	Certified	Jonathan Heffernan	Safety Administrator		29-JUL-24	29-JUL-24	Monthly Category 3 Spill	Ball Rd and Velare	07/10/2024 19:37	07/10/2024 20:12	07/10/2024 18:37				Sewer spill at Ball Rd and Velare. 	33.81765	-117.97343	Manhole			90	Spill occurred on Ball Rd at Velare St. Sewage flowed west on Ball Rd in the curb and gutter and entered a storm drain catch basin on Ball at Magnolia. See attachment photos.	Y	Storm Drain Catch Basin @ Ball Rd and Magnolia. Vactor crew conducted containment and recovery at this catch basin.	90				90	Drainage Conveyance System; Street/Curb and Gutter (2 3)		Overflow occurred from a manhole on Ball Rd at Velare. Flow ran the curb and gutter to a catch basin at Ball Rd and Magnolia Ave. 	Y	33.8177	-117.97551							07/10/2024 21:25	Measured the flow of the sewage in the curb and gutter along Ball Rd. 	Multiply the depth x width x flow rate x 40 (conversion factor considering friction loss)	Debris-wipes/Non-disposables		Gravity Mainline		Vitrified Clay		30	Spill flowed into gutter line heading W/B on Ball Rd	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Returned All Spill to Sanitary Sewer System		Crews included 2 Vactor trucks and 4 individuals. They contained spill and broke the stoppage. Recovered spill from the storm drain at Ball and Magnolia.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Spill location is on a 90 day maintenance interval. Will adjust the maintenance frequency.		07/10/2024 21:37	After breaking SSO stoppage we discovered the cause to be related to wipes		Plan to CCTV the location to investigate the property as to where it occurred.	07/25/2024 16:00														None	Adjust maintenance frequency.	Increase cleaning frequency.	None	None	No scheduled capital improvements at this location at this time.	Updated maintenance frequency schedule.	Location will continue to be cleaned using hydro-jet methods but at a increased frequency.	Plan to CCTV the location to investigate the property as to where it occurred.	
5S	5SSO11007	Active	Murphys CS	Murphys SD	895636	1.2	Certified	Daniel Murphy	CPO		13-JUL-24	13-JUL-24	Monthly Category 3 Spill	268 Main st MH#42	07/13/2024 12:32	07/13/2024 13:10	07/13/2024 13:20				Spill out of system manhole in the road	38.13764	-120.46106	Gravity Mainline		0	900	Spill was contained on asphalt roadway and dirt walking path	N						900	Paved Surface		Spill pooled in a 25x9 foot section of the roadway and dirt path	Y	38.13764	-120.46106							07/13/2024 13:20	Spill flow chart out of pick hole and denominational math of pooled spill area	Direct call from customer when spill started	Debris-General; Debris-Rags; Debris-wipes/Non-disposables		Gravity Mainline; Manhole		Polyvinyl Chloride (PVC)		15	Sewage spilled on street 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Returned Portion of Spill to Sanitary Sewer System		Spill was halted within ten minutes of arrival. Majority of spill was rinsed back into manhole. Affected area was rinsed, swept and disinfected	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Increased flushing prior to large tourist impacted weekends and continue public education about what should not go down drains		07/13/2024 13:50	Large amounts of rags and paper products were retrieved from downstream manhole post clearing. Video inspected and found no other issues in 8  PVC gravity main line		none	07/13/2024 13:50														No	No identified modifications, preventative maintenance schedule is seen as adequate however, crew will flush prior to all heavy traffic weekends	none	none	Video inspected 7-13-24 post spill. No line issues observed	none	none	none needed, appropriate response	none	
4	4SSO10414	Active	Palos Verdes Estates City CS	Palos Verdes Estates City	895653	1.1	Certified	Eric Liu	Civil Engineer		06-AUG-24	06-AUG-24	Monthly Category 3 Spill	1544-0979 (2332 Via Pinale, Palos Verdes Estates)	07/08/2024 11:35	07/08/2024 12:20	07/08/2024 09:30				CSMD Map Sheet No. 1544 Manhole No. 979 MMS No. 8854049 Manhole No. 979 was overflowing. 	33.79727	-118.3893	Manhole			300	The sewage spill evaporated on the street and also dissipated in the dirt. 	N						50	Other (specify below); Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface	Onto dirt land. 	The sewage spill evaporated on the street and dissipated in the dirt. 	N									07/08/2024 14:30	Visual or eyeball method.	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops. 	Debris-wipes/Non-disposables; Vandalism (specify below)		Gravity Mainline		Other (specify below)	LVCP	57	N/A	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow		Upon arrival, we found that manhole 979 was overflowing at the southwest corner of Via Pinale. We set up containment on the street by using dirt to create a berm. Using a combo truck, we vacuumed up the wastewater from the curb. After several attempts of hydro jetting uphill, we broke down a heavy blockage caused by wipes. We then cleaned up the mud and soil on the sidewalk. Finaly, we washed down the street with fresh water. All required agencies were notified. 	Other (specify below)	Inspect & monitor condition.	Will inspect the mainline via CCTV to determine if further action is needed.		07/08/2024 15:30	Will inspect the mainline via CCTV to determine if further action is needed.		Will inspect the mainline via CCTV to determine if further action is needed.	09/08/2024 12:00														N/A	N/A	Will inspect the mainline via CCTV to determine if further action is needed.	N/A	N/A	N/A	N/A	N/A	Will inspect the mainline via CCTV to determine if further action is needed.	
8	8SSO10560	Active	Riverside City CS	Riverside City	895654	1.4	Certified	Kevin Street	Wastewater Operations Manager		30-JUL-24	30-JUL-24	Monthly Category 3 Spill	City Main	07/13/2024 14:03	07/13/2024 15:04	07/13/2024 13:04				Manhole in alley overflowed.	33.97139	117.36057	Manhole			985	Spill exited manhole behind 2354 12th St, ran down dirt alley to paved curb and gutter on Sedwick where it entered City storm drain system basin #1 at Vermont, 12  pipe ran to basin #2, turned 90 degrees left, went 174 feet and tied into 36  RCP, and 90 degrees right approx 200 feet to storm drain manhole where spill was cleaned and retrieved.	Y	Spill exited manhole behind 2354 12th St, ran down dirt alley to paved curb and gutter on Sedwick where it entered City storm drain system basin #1 at Vermont, 12  pipe ran to basin #2, turned 90 degrees left, went 174 feet and tied into 36  RCP, and 90 degrees right approx 200 feet to storm drain manhole where spill was cleaned and retrieved.	600				937	Drainage Conveyance System; Street/Curb and Gutter (2 3); Unpaved Surface		Spill exited manhole behind 2354 12th St, ran down dirt alley to paved curb and gutter on Sedwick where it entered City storm drain system basin #1 at Vermont, 12  pipe ran to basin #2, turned 90 degrees left, went 174 feet and tied into 36  RCP, and 90 degrees right approx 200 feet to storm drain manhole where spill was cleaned and retrieved.	N									07/13/2024 16:21	Flow estimation pictures for manhole overflow. 	Estimated 5 gpm spilling for 197 minutes from manhole in alley.	Debris-General		Gravity Mainline		Vitrified Clay		100	Some of spill permeated soil in alleyway and was not recovered.  Sunlight and heat helped evaporate moisture.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Set up pig at storm drain inlet upon arrival, cleared blockage in city main, cleaned spill from curb/gutter and storm drain system and disinfected all affected areas.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Adjusted line cleaning to coincide with adjacent line segment cleanings to prevent future spills.		07/13/2024 17:19	Standby crew noticed large pieces of plastic after relieving blockage.  Line cleaning schedule was reviewed and adjusted to prevent future spills.  CCTV revealed nothing unusual.		n/a	07/15/2024 09:00														n/a	Adjusted line cleaning to coincide with adjacent line segment cleanings to prevent future spills.	Adjusted line cleaning to coincide with adjacent line segment cleanings to prevent future spills.	not at this time	CCTV line was ok, debris was cause. 	n/a	n/a	n/a 	n/a	
3	3SSO10311	Active	Ridgemark Estates CS	Sunnyslope County Water District	895656	1.2	Certified	Drew Lander	General Manager		30-JUL-24	30-JUL-24	Monthly Category 3 Spill	Oak Canyon Court	07/14/2024 10:30	07/14/2024 10:45	07/14/2024 10:30				Spill originated in the road between addresses 688 and 691 Oak Canyon Court above sewer force main. Majority of the spill appeared in front of 691 Oak Canyon Court. 	36.82055	-121.37739	Force Main	N/A	N/A	900	Spill primarily appeared at the seam of the road asphalt and gutter, with some seeping up through the asphalt. Spill ran down gutter to storm drain inlet where it flowed to a retention basin and was contained there.	Y	Spill entered storm drain inlet at 691 and 688 Oak Canyon Ct. Those inlets connect to 2 parallel 48  SD pipes which outlet into a retention basin behind 682 and 688 Oak Canyon Ct. where the spill was contained and percolated into the soil. 	0				0	Drainage Conveyance System; Groundwater Infiltration Basin or Facility; Paved Surface; Street/Curb and Gutter (2 3)		Spill surfaced in asphalt of Oak Canyon Ct, especially at the seam of the asphalt and curb/gutter. It ran down the gutter to a storm drain inlet only 20' from the spill. That storm drain runs through two 48  pipes to a retention basin about 200' away. 	Y	36.82054	-121.37739	36.82056	-121.37732	36.82063	-121.37793			07/14/2024 11:45	Staff who responded to the spill estimated a flow rate of 10gpm when pump was off and 15gpm when pump was running. From notification of spill to end of spill was 75 minutes. Assuming 12gpm to be safe, that gives a spill volume of 900 gallons (12gpm x 75 minutes). The Principal Engineer ran calculations for the theoretical leak flow rate based on crack size and pressure and got similar numbers to the 10 and 15gpm. The entire spill went to the storm drain retention basin where it could not be recovered as it quickly percolated into the soil.	The spill is assumed to have begun at the time of the notification call. This was verified by looking at the lift station pump amperage from SCADA. The spill end time is at the point that a pumper truck arrived and pumped out the sewer from the lift station and force main, ending the spill.	Pipe Structural Problem/Failure - Installation		Force Main		Polyvinyl Chloride (PVC)		29	None. Soil area around cracked pipe was removed and replaced with new fill material. All surfaces that had contact with the spill were cleaned and disinfected with 12.5% sodium hypochlorite bleach. No exposure to the public as staff quickly closed the site. Spill percolated into the soil in the retention basin and the soil was removed as practical and disinfected with bleach. Sewer service for all homes was maintained. There was no flooding or discharge of wastewater onto private property. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow		Local Vacuum trucks were called to contain spill in roadway until large pumper truck was able to pump down lift station to make repair on force main. All surfaces were sprayed with 12.5% chlorine bleach and cleaned. Soil in retention basin was removed as feasible and whole area disinfected with bleach. Contaminated area was closed until full cleanup and disinfection was completed.	Repaired Facilities or Replaced Defect		The 3' section of cracked pipe in the force main was cut out and new pipe was installed using two couplings. Ultimately, the entire force main will be abandoned when a new lift station and force main become operational, expected to be within a year. 		07/14/2024 14:00	The 4  PVC force main cracked at the base of a bell. It is believed that this crack was due to a material or installation defect in the pipe. There was no evidence of unusual operation or circumstance that could have contributed to this pipe failure. 		No ongoing investigation since the cause, solution, and repair of the spill were all determined and corrected at the site during the emergency response.	07/15/2024 10:00														No enforcement actions were taken as the spill was not the result of an illicit discharge.	The cracked section of pipe was replaced with new PVC and couplings. No operational or maintenance modifications were made as the spill was not caused by operational or maintenance deficiencies.	No changes were made to the schedule or method of preventative maintenance as the spill was caused by a failure in the pipe material rather than due to lack of preventative maintenance. 	The entire force main and lift station serving it will be replaced by a new lift station and force main in a different location farther downstream. The new force main is 6  welded HDPE without any bells (eliminating the weak point at the bell where the pipe cracked causing the spill). It is expected that the new lift station and force main will be operational within a year.	About a 3 foot section of the force main pipe was removed and preplaced with new PVC pipe and couplings. Ultimately, the entire force main will be replaced with a new force main. 	The replacement of the lift station and force main has been in the Capital Improvement Plan for several years and is expected to be completed within a year.	See attached: Field Spill Report Form Pictures OERP Review Form	Sunnyslope managers reviewed the Overflow Emergency Response Plan (OERP). Additional septic pumper truck companies were added to the list in the plan. Names and titles were updated. New section added for Force Main Leak.	No ongoing investigation since the cause, solution, and repair of the spill were all determined and corrected at the site during the emergency response.	
3	3SSO20018	Active	Ridgemark Estates CS	Sunnyslope County Water District	895656	1.2	Certified	Drew Lander	General Manager		30-JUL-24	30-JUL-24	Monthly Category 3 Spill	Oak Canyon Court	07/14/2024 10:30	07/14/2024 10:45	07/14/2024 10:30				Spill originated in the road between addresses 688 and 691 Oak Canyon Court above sewer force main. Majority of the spill appeared in front of 691 Oak Canyon Court. 	36.82055	-121.37739	Force Main	N/A	N/A	900	Spill primarily appeared at the seam of the road asphalt and gutter, with some seeping up through the asphalt. Spill ran down gutter to storm drain inlet where it flowed to a retention basin and was contained there.	Y	Spill entered storm drain inlet at 691 and 688 Oak Canyon Ct. Those inlets connect to 2 parallel 48  SD pipes which outlet into a retention basin behind 682 and 688 Oak Canyon Ct. where the spill was contained and percolated into the soil. 	0				0	Drainage Conveyance System; Groundwater Infiltration Basin or Facility; Paved Surface; Street/Curb and Gutter (2 3)		Spill surfaced in asphalt of Oak Canyon Ct, especially at the seam of the asphalt and curb/gutter. It ran down the gutter to a storm drain inlet only 20' from the spill. That storm drain runs through two 48  pipes to a retention basin about 200' away. 	Y	36.82054	-121.37739	36.82056	-121.37732	36.82063	-121.37793			07/14/2024 11:45	Staff who responded to the spill estimated a flow rate of 10gpm when pump was off and 15gpm when pump was running. From notification of spill to end of spill was 75 minutes. Assuming 12gpm to be safe, that gives a spill volume of 900 gallons (12gpm x 75 minutes). The Principal Engineer ran calculations for the theoretical leak flow rate based on crack size and pressure and got similar numbers to the 10 and 15gpm. The entire spill went to the storm drain retention basin where it could not be recovered as it quickly percolated into the soil.	The spill is assumed to have begun at the time of the notification call. This was verified by looking at the lift station pump amperage from SCADA. The spill end time is at the point that a pumper truck arrived and pumped out the sewer from the lift station and force main, ending the spill.	Pipe Structural Problem/Failure - Installation		Force Main		Polyvinyl Chloride (PVC)		29	None. Soil area around cracked pipe was removed and replaced with new fill material. All surfaces that had contact with the spill were cleaned and disinfected with 12.5% sodium hypochlorite bleach. No exposure to the public as staff quickly closed the site. Spill percolated into the soil in the retention basin and the soil was removed as practical and disinfected with bleach. Sewer service for all homes was maintained. There was no flooding or discharge of wastewater onto private property. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow		Local Vacuum trucks were called to contain spill in roadway until large pumper truck was able to pump down lift station to make repair on force main. All surfaces were sprayed with 12.5% chlorine bleach and cleaned. Soil in retention basin was removed as feasible and whole area disinfected with bleach. Contaminated area was closed until full cleanup and disinfection was completed.	Repaired Facilities or Replaced Defect		The 3' section of cracked pipe in the force main was cut out and new pipe was installed using two couplings. Ultimately, the entire force main will be abandoned when a new lift station and force main become operational, expected to be within a year. 		07/14/2024 14:00	The 4  PVC force main cracked at the base of a bell. It is believed that this crack was due to a material or installation defect in the pipe. There was no evidence of unusual operation or circumstance that could have contributed to this pipe failure. 		No ongoing investigation since the cause, solution, and repair of the spill were all determined and corrected at the site during the emergency response.	07/15/2024 10:00														No enforcement actions were taken as the spill was not the result of an illicit discharge.	The cracked section of pipe was replaced with new PVC and couplings. No operational or maintenance modifications were made as the spill was not caused by operational or maintenance deficiencies.	No changes were made to the schedule or method of preventative maintenance as the spill was caused by a failure in the pipe material rather than due to lack of preventative maintenance. 	The entire force main and lift station serving it will be replaced by a new lift station and force main in a different location farther downstream. The new force main is 6  welded HDPE without any bells (eliminating the weak point at the bell where the pipe cracked causing the spill). It is expected that the new lift station and force main will be operational within a year.	About a 3 foot section of the force main pipe was removed and preplaced with new PVC pipe and couplings. Ultimately, the entire force main will be replaced with a new force main. 	The replacement of the lift station and force main has been in the Capital Improvement Plan for several years and is expected to be completed within a year.	See attached: Field Spill Report Form Pictures OERP Review Form	Sunnyslope managers reviewed the Overflow Emergency Response Plan (OERP). Additional septic pumper truck companies were added to the list in the plan. Names and titles were updated. New section added for Force Main Leak.	No ongoing investigation since the cause, solution, and repair of the spill were all determined and corrected at the site during the emergency response.	
8	8SSO10543	Active	Beaumont City CS	Beaumont City	895661	1.2	Certified	Jerome Moledor	Wastewater Collections Supervisor	16-JUL-24	24-JUL-24	24-JUL-24	Category 2 Spill	Carnation LN & Queen Annes LN aprox 410ft W of intersection.	07/14/2024 22:58	07/14/2024 23:25	07/14/2024 21:30	07/15/2024 00:47	24-4028		Appearance point was a manhole aprox 410ft W of the intersection of Carnation LN & Queen Annes LN.	33.93492	-116.9585	Manhole			4000	The spill came out of a manhole on Carnation LN between Queen Annes LN and Sealavender LN. The spill went approximately 36ft NE to a Storm drain intel then S approximately 55ft and W approximately 466ft in a storm drain to a outfall into a dry storm catch basin. In the catch basin it went approximately 315ft SW then approximately 270ft E until it went dry. This catch basin has a high outflow level and there for was not discharging. 	Y	The spill came out of a manhole on Carnation LN between Queen Annes LN and Sealavender LN. The spill went approximately 36ft NE to a Storm drain intel then S approximately 55ft and W approximately 466ft in a storm drain to a outfall into a dry storm catch basin. In the catch basin it went approximately 315ft SW then approximately 270ft E until it went dry. This catch basin has a high outflow level and there for was not discharging. 	2000	2000			2000	Drainage Conveyance System; Other (specify below); Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface	The spill went approximately 36ft NE to a Storm darin intel then S approximately 55ft and W approximately 466ft in a storm drain to a outfall into a storm drain catch basin. In the catch basin it went approximately 315ft SW then approximately 270ft E until it went dry. 	The spill went approximately 36ft NE to a Storm darin intel then S approximately 55ft and W approximately 466ft in a storm drain to a outfall into a storm drain catch basin. In the catch basin it went approximately 315ft SW then approximately 270ft E until it went dry. 	Y	33.93492	-116.9585	33.93496	-116.95838	33.9347	-116.95996	33.93364	-116.95952	07/15/2024 00:19	Spill estimations were done by comparing the spill to SSCSC manhole Overflow Gauge pictures times approx. spill time. Volume recovered was 1 truck load approx. 2000gals.	Start time estimations were done by first confirmed calls and 1 hour added. End time was when on site personal cleared the blockage, and restored flow.	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG); Vandalism (specify below)	A large piece of concrete and several pieces of 2'' PVC pipe were thrown into the system from a upstream manhole. All of this collected in a 90 degree turn and caught rags, wipes and FOG.	Manhole		Polyvinyl Chloride (PVC)		18	The spill went approximately 36ft NE to a Storm drain intel then S approximately 55ft and W approximately 466ft in a storm drain to a outfall into a storm drain catch basin. In the catch basin it went approximately 315ft SW then approximately 270ft E until it went dry. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Cleaned up areas around manhole, street, and gutter. Vacuumed up one truck load and sprayed all effected areas with a diluted chlorine.	Called to site for the spill. Brought jetter truck to restore flow. All of the spill was contained in a nonflowing storm catch basin. Cleaned up areas around manhole, street, and gutter. Vacuumed up one truck load and sprayed all effected areas with a diluted chlorine.	Other (specify below)	Found the problem manhole and performed a confined space entry to remove all of the debris from the channel. Then we re-cleaned and video the lines.	Found the problem manhole and performed a confined space entry to remove all of the debris from the channel. Then we re-cleaned and video the lines.	Done	07/15/2024 16:30	A large piece of concrete and several pieces of 2'' PVC pipe were thrown into the system from a upstream manhole. All of this collected in a 90 degree turn and caught rags, wipes and FOG.	N												N													
2	2SSO10225	Active	Crystal Springs CSD CS	San Mateo County DPW	895664	1.2	Certified	Mark Chow	Principal Civil Engineer	16-JUL-24	26-JUL-24	26-JUL-24	Category 1 Spill	1479 Ascension Drive (CSCSD)	07/11/2024 20:01	07/11/2024 20:44	07/11/2024 18:55	07/11/2024 21:14	24-3970		Photograph # 9 - manhole from which the spill originated.  Photograph # 22 - manhole from which the spill originated.	37.530441	-122.344709	Manhole			1043	Photograph # 22 - manhole from which spill originated and area around the manhole.  Photograph # 23 - area downstream of and downhill from the manhole from which the spill originated.  Photograph # 11 - portion of spill boundaries as it was seen originating from the manhole.  Photograph # 12 - portion of the extent of the spill.  Photograph # 13 - portion of the extent of the spill further downhill.  Photograph # 14 - portion of the extent of the spill even further downhill.  Photograph # 15 - portion of the extent of the spill close to storm drain where spill entered.   Photograph # 17 - storm drain that the spill entered.	Y	The drainage conveyance system consists of gutters, storm drains, and possibly a culvert or a discharge pipe for water to enter into the creek.  Photograph # 27 - storm drain that the spill from manhole entered.   Photograph # 29 - different view of the storm drain that the spill from manhole entered.	5	1023	No photographs of culvert or pipe transporting water into the creek were taken as it was unsafe to access the creek due to dense vegetation and steep terrain.	1023	5	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water		The spill went to street and gutter, and storm drain system that discharges into a creek. 	Y	37.530441	-122.344709							07/11/2024 21:24	Eye ball estimation of flow rate and spill duration were used to calculated the total spill volume. Measurements of spill area was used to calculate spill contained in pavement. Eye ball estimation was used for spill volume recovered and returned to the sewer system.	The start time for the spill was based on the interview of the person who reported the spill and end time was based on when the blockage was cleared. 	Other (specify below); Root Intrusion	plastic wrappers	Gravity Mainline		Vitrified Clay		77	The spill entered the storm drain that flows to the Polhemus Creek.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		The crew cleared the blockage using Vac-con truck. Sandbags were placed into the storm drain to attempt to contain some of the spill. Approximately 5 gallons of the spill were contained and recovered from the storm drain. The 5 gallons were returned to sewer system. The crew washed the street, gutter, and the storm drain, and vacuumed the rinse water from the storm drain.	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		The sewer line was televised to locate the problem area, and the crew used pipe patch to repair the defective spot where roots were growing.	The spot repair has been completed.	07/11/2024 22:38	The spill was caused by root intrusion at a spot with broken pipe.	N			Polhemus Creek	Stream/Creek		Creek with steep slopes and heavy vegetation.	Was not able to observe any possible impacts on aquatic life as it was not safe to access the creek due to terrain and heavy vegetation.	Other (specify below)	The creek is not easily accessible to the public due to terrain and heavy vegetation.	Not applicable.	0	N	N												
3	3SSO11524	Active	Monterey City CS	Monterey City	895666	1.2	Certified	Andrew Easterling	City Engineer	16-JUL-24	24-JUL-24	24-JUL-24	Category 1 Spill	491 Dry Creek Rd	07/15/2024 16:07	07/15/2024 16:13	07/15/2024 16:00	07/15/2024 16:40	24-0000	16-JUL-24	Root intrusion inside manhole E02-011 near 491 Dry Creek Rd. blocked the outlet of the manhole, causing a surcharge from SMH E02-011 and E02-010.  Wastewater sheet flowed down Dry Creek road approximately 400 feet where it entered the storm drain catchbasin.  The catchbasin feeds a pipe that outlets approximately 40' in a greenbelt area.  The sewage that entered the catchbasin was contained in the dry creek approximately 50' from the outlet.	36.59381	-121.91321	Manhole	SMH E02-010 & E02-011		600	See attachment	Y	Wastewater sheet flowed 400' down Dry Creek road, entered catchbasin E02-C30 and out a 24  reinforced concrete pipe approximately 40' to a dry creek in a greenbelt area.  See photos in attachment.	200	0	Wastewater exited a 24  reinforced concrete pipe approximately 40' downstream of the catchbasin and was contained in a dry creek bed approximately 50' from the outlet.  Photos attached.	200	0	Drainage Conveyance System; Other (specify below)	Wastewater entered a catchbasin that discharges to a dry creek bed.  A survey the following morning shows a wetted area indicating that the wastewater traveled approximately 50' from the outfall and dissipated into the dry creek channel.	Final destination was a dry creek channel spanning approximately 50' from the outfall 121�54'42 W, 36�35'40 N.	Y	36.59461	-121.91142	36.59462	-121.91131					07/15/2024 18:13	A visual estimate of 5gpm was determined by County Health and Streets personnel responding to the spill, and verified the following day by observing photos taken during the event.  It is estimated that the spill occurred for 2 hours, spilling 600 gallons total.  Public Works vacuumed up approximately 200 gallons, approximately 200 gallons entered the catchbasin and spilled to a dry creek that was not collected.  Approximately 200 gallons evaporated or absorbed into landscape areas.	Responding crews determined a discharge rate of 5gpm at the time of the spill which lasted between 4pm and 6pm.  A field survey the following day observed the extent of the wastewater that had entered the dry creek bed and was contained in the greenbelt area.	Debris-General; Fats, Oil and Grease (FOG)	A combination of roots and grease were collected from manhole E02-011.	Manhole		Polyvinyl Chloride (PVC)		50	Final destination of the spill was a dry creek in a greenbelt area that is not accessible to pedestrians. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Fire Department responded to the incident and created an earthen dam in front of the receiving catchbasin to mitigate spill.  Public Works responded with hydro jet and cleared the blockage in the main.  Public Works also vacuumed the wastewater contained in the street, curb and gutter, flushed with clean water, and applied a sanitizer.  	Added Sewer to Preventive Maintenance Program; Enforcement action against Fats, Oil, and Grease (FOG) source		Added manhole to sewer root foaming project scheduled for September 2024.  Added Cypress Ridge Care Center (1501 Skyline) and Windsor Monterey Care Center (1575 Skyline) to FOG Inspection as these are 2 facilities upstream that can potentially introduce grease to the system.	September-October 2024 sewer root foaming. August-September FOG inspections	07/15/2024 18:13	Root intrusion was observed in the manhole where the blockage occurred.  Grease logs were also removed from the manhole that apparently were entangled in the roots which caused the blockage.	Y	Identify potential sources of FOG upstream	08/30/2024 17:00	Un named ephemeral creek 	Stream/Creek		Ephemeral creek channel currently has no natural water flowing 	None	Restricted Public Access	Spill final destination was located behind a fenced area not accessible to public.	N/A	0	N	N											Identify potential sources of FOG upstream	
4	4SSO11388	Active	County Sanitation District Joint Outfall CS	Los Angeles Cnty Sanitation Districts	893405	2.2	Certified	Andre Schmidt	Wastewater Collection Systems Manager	09-FEB-24	18-JUL-24	18-JUL-24	Category 1 Spill	Scott Avenue Trunk and Scott Avenue Relief Trunk	02/06/2024 08:47	02/06/2024 08:59	02/06/2024 08:15	02/06/2024 13:54	24-0749		The primary spill appearance point was from LACSD�s Scott Avenue Trunk at MH 18 0939 located in the City of Whittier at coordinates 33�56�48.7� N, 118�0�0.2� W. See attachment for photo.	33.9468577	-118.0000538	Manhole		Additional spill appearance points include LACSD MHs 18 0944, 18 0943, and 18 0942 on the Scott Avenue Relief Trunk. These manholes are located in the City of Whittier at coordinates 33�56�55.7�N, 118�0�7.2�W, 33�56�54.4�N, 118�0�4.4�W, and 33�56�53.9�N, 118�0�2.7�W, respectively. MH 18 0944 is located on La Serna Drive and MHs 18 0943 and 18 0942 are located on private residential properties along Janine Drive. See attachment for photos.	23219	See attachment for response and photo.	Y	The spill volumes from MH 18 0939 and MH 19 0944 entered into the catch basin on Whittier Boulevard located 250 feet SE of the intersection with Scott Ave, and then flowed through underground storm drains approximately 3,900 feet (0.7 miles) before entering Leffingwell Creek, where it traveled 15,000 feet (2.8 miles) before reaching Coyote Creek. See attachment for photo.	0	14013	The stormwater system conveyed the spill volume into surface water Coyote Creek via tributary Leffingwell Creek. Leffingwell Creek discharges into Coyote Creek approximately 480 feet east of the intersection of Utica Street and Ramsey Drive. See attachment for photo.	14013	9034	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		Destination 1: Manhole 18 0942 Destination 2: Storm water catch basin Destination 3: Discharge location from storm water conveyance system to the Leffingwell Creek Destination 4: Discharge location from Leffingwell Creek to Coyote Creek	Y	33.948306	-118.00075	33.94688	-118	33.938215	-118.005535	33.923845	-118.035667	02/06/2024 11:26	See attachment.	See attachment.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Vitrified Clay		53	See attachment.	Y	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Returned Portion of Spill to Sanitary Sewer System		See attachment.	Other (specify below)	See attachment.	See attachment.	See attachment.	02/06/2024 16:00	See attachment.	N			Coyote Creek	Other (specify below)	Concrete-lined channel tributary to the Pacific Ocean	Surface water channel	None	Public Closure	Orange County Healthcare Agency closed public access to Seal Beach beaches on February 7, 2024, which have since reopened as of February 13, 2024.	Orange County Healthcare Agency	6	N	Y	Samples were collected at the following locations: Sample 1: 33.938195, -118.005589 Sample 2: 33.935403, -118.007984 Sample 3: 33.946858, -118.000054	Samples were tested for Total Coliform, Fecal Coliform, Enterococcus, E. Coli and ammonia.										
4	4SSO11388	Active	County Sanitation District Joint Outfall CS	Los Angeles Cnty Sanitation Districts	893353	2.2	Certified	Andre Schmidt	Wastewater Collection Systems Manager	07-FEB-24	18-JUL-24	18-JUL-24	Category 1 Spill	District #2 Main Trunk	02/05/2024 00:21	02/05/2024 00:51	02/04/2024 18:45	02/05/2024 01:41	24-0678	21-MAR-24	The spill originated from LACSD�s District #2 Main Trunk at MH 02 2415 located at coordinates 34�0�34.2�N, 118�9�30.2�W, in the intersection of South Atlantic Boulevard and Telegraph Road in the City of Commerce. See attachment for photo.	34.0095135	-118.1583781	Manhole			109175	The spill extended approximately 50 feet west and 160 feet north from MH 02 2415, along the west curb of South Atlantic Boulevard until reaching the storm water catch basin located under the railroad bridge crossing over South Atlantic Boulevard. See attachment for photo.	Y	The spill traveled above ground for approximately 160 feet before entering the storm drain system on the west side of South Atlantic Boulevard. The wastewater flowed through underground storm drains approximately 14,900 feet (2.8 miles) before entering Gage Drain, where it traveled approximately 13,600 feet (2.6 miles) before reaching the Los Angeles River. See attachment for photo.	0	109175	The storm water system conveyed the spill volume into the Los Angeles River, discharging from the east side of the channel approximately 1,100 feet south of the intersection of Southern Avenue and West Frontage Road. See attachment for photo.	109175	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		Destination 1: Storm water catch basin Destination 2: Discharge location from storm water conveyance system to the Gage Drain Destination 3: Discharge location from the Gage Drain into the Los Angeles River	Y	34.009918	-118.158757	33.974904	-118.157868	33.942115	-118.173824			02/05/2024 02:22	See attachment	See attachment	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Vitrified Clay		25	See attachment	Y	Cleaned Up (specify below)		See attachment	Other (specify below)	LACSD is evaluating the best way to prevent future spills at this location including diversion of flows from the spilling sewer to other upstream sewers and/or modification of MH 02 2415 to seal the manhole so that it does not spill during surcharge events.	See responses to questions 10a and 10c.	Corrective action will be completed prior to the start of the 2024/25 rainy season.	02/06/2024 15:30	See attachment	N			Los Angeles River	River		Surface water channel	None	Public Closure	Long Beach Health implemented beach closures on February 5, 2024, for all Long Beach side beaches. The Granada Avenue and 72nd Place locations reopened to the public on February 10, 2024. All other beach side locations, except 5th Place and Coronado, reopened on February 11, 2024, and the 5th Place and Coronado Avenue locations reopened on February 15, 2024.	Long Beach Health	10	N	Y	Samples were collected at the following coordinates: Sample 1: 34.009513, -118.158378 Sample 2: 33.994634, -118.182023 Sample 3: 33.9499806, -118.1730679 Sample 4: 33.9304827, -118.1759774 Sample 5: 33.9038140, -118.1822367	Samples were tested for Total Coliform, Fecal Coliform, Enterococcus, E. Coli and ammonia.										
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	895670	1.3	Certified	Ameal McLaurin	Sewer Supervisor 2		23-JUL-24	23-JUL-24	Monthly Category 3 Spill	8040 Shephard Canyon Rd	07/12/2024 15:43	07/12/2024 16:30	07/12/2024 13:00				Manhole on easement in the rear of the property was partially buried and overflowing. The sewage was flowing down on the hillside and soaked into the dirt. 	37.83577	-122.18589	Manhole			127	Manhole on easement in the rear of the property was partially buried and overflowing. The sewage was flowing down on the hillside and soaked into the dirt. 	N						0	Unpaved Surface		Manhole on easement in the rear of the property was partially buried and overflowing. The sewage was flowing down on the hillside and soaked into the dirt. 										07/12/2024 20:15	Calculated Volume: Hillside: 14'L X 3'W X 2.16 D X 7.48-gal X .1875 = 127.23 Gallons	Start time was based on eyewitness account. The end time was based on responding sewer crew restoring flow in the mainline. 	Root Intrusion		Gravity Mainline		Vitrified Clay		20	Manhole on easement in the rear of the property was partially buried and overflowing. The sewage was flowing down on the hillside and soaked into the dirt. 	N	Cleaned Up (specify below); Other (specify below); Property Owner Notified; Restored Flow	Raked up leaf's and disposed. 	The spill was down on the hillside where it soaked into the ground. We raked up the leaf's and disposed of them. 	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Mainline has been televised and put on preventative maintenance program.	The mainline has been televised and determined that roots caused the overflow. W/O# 1540154. Mainline has been added to a 6-month high frequency hand rodding program. W/O# 1540768		07/13/2024 17:30	Responding sewer crew serviced the mainline and cut out heavy roots to open the line. The CCTV found the line was plugged due to root intrusion from the joints. 		None	07/15/2024 12:00														N/A	The mainline has been televised and determined that roots caused the overflow. W/O# 1540154. Mainline has been added to a 6-month high frequency hand rodding program. W/O# 1540768	The mainline has been televised and determined that roots caused the overflow. W/O# 1540154. Mainline has been added to a 6-month high frequency hand rodding program. W/O# 1540768	N/A	The mainline has been televised and determined that roots caused the overflow. W/O# 1540154.	N/A	The mainline has been televised and determined that roots caused the overflow. W/O# 1540154. Mainline has been added to a 6-month high frequency hand rodding program. W/O# 1540768	The mainline has been televised and determined that roots caused the overflow. W/O# 1540154. Mainline has been added to a 6-month high frequency hand rodding program. W/O# 1540768	None	
5S	5SSO11066	Active	Tracy CS	Tracy City	895675	1.2	Certified	Wayne Bogart	Superintendent		16-JUL-24	16-JUL-24	Monthly Category 3 Spill	Wagtail Dr at Lierly St.	06/25/2024 16:00	06/25/2024 16:20	06/25/2024 15:35				Sewer water was coming out of manhole at the intersection of Wagtail Dr. and Lierly St. ran down the gutter and dumped into the DI in front of  	37.73369	-121.41744	Gravity Mainline			600	Spill started out at manhole at Wagtail Dr and Lierly St floed east to the DI in front of 581 Wagtail Dr.	Y	Storm drain line 18  flows east	600				600	Drainage Conveyance System that discharges to surface water		Flowed from the intersection of Wagtail Dr. and Lierly st. to gutter to DI in front of 581 Wagatail Dr.	Y	37.73392	-121.41695							06/25/2024 16:45	Estimation of flow and total gallons was done from the picture chart	Talked to neighbors when it was first noticed then looked at watch when stopped did calculation from that	Debris-General; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		25	Sewage water on street in gutter and also in storm drain. Power washed all and sucked up with the VACCON	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Opened up the line with the jetter washed down the street then cleaned out the DI and cleaned out the storm line until there was no sign of the spill	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance		Put on weekly hot spot list. Will continue to add degreaser when cleaning		06/25/2024 18:15	Checked all manholes in area Could not find any large quantities of grease CCTV main saw no issues with the sewer main		Cannot find where grease is coming from	06/25/2024 19:00														None needed at this time	Check line and area weekly	Weekly check and jetting	None needed line in good shape	None needed	Not for this area	On the hotspot list	None needed did get flow and cleanup quickly	Cannot find where grease is coming from	
4	4SSO10489	Active	Simi Valley CS	Simi Valley City	895694	1.2	Certified	Al Sexton	Deputy Director - Sanitation Services	18-JUL-24	23-JUL-24	23-JUL-24	Category 1 Spill	1677 River Wood Ct.	07/16/2024 09:50	07/16/2024 09:59	07/16/2024 08:40	07/16/2024 11:27	24-4064		Spill originated at MH number M19-189, GPS coordination 34.267975 -118.671484. Single appearance point. A large calcium deposit caused by I&I at manhole (M19-188) connection point to sewer line caused debris (Grease, loose root ball) to build up and and cause the blockage. Sewer spilled out of MH (M19-189) reaching nearby storm drain and detention basin. Eventually 880 gallons reached the Arroyo Simi Flood Control Channel. Blockage cleared, street and storm drains flushed and vacuumed using a sewer combination machine truck. 3000 gallons recovered. 3720 gallons saturated into detention basin. Sewer camera inspection was conducted and line segment high pressured washed. Crew made confined space entry into MH (M19-188) and removed calcium deposit. Spill warning signs were posted from spill location down the Arroyo Simi Flood Control Channel at every locked entry point to Yosemite Ave. Spill samples were taken upstream, downstream and at the spill location.	34.267975	-118.671484	Manhole	N/A	N/A	7600	Spill boundaries consist around manhole M19-189, storm drain catch basin, private HOA retention basin and Ventura County Flood Control Channel.	Y	Concrete flood control channel with flow from multiple locations. 	0	880	CMP pipe from retention basin to the Flood Control Channel. One discharge point to the control channel.	880	3000	Drainage Conveyance System that discharges to surface water		Arroyo Simi Flood Control Channel, a concrete flood channel. 34.268456 -118.671819 	Y	34.267975	-118.671484	34.268456	-118.671819					07/16/2024 10:30	Volume calculations based on size of pipe, daily flow in pipe and time. Also measured height of pick hole flow based on SSCSC manhole overflow Gauge. Calculations attached under Methodology. 	The homeowner of 1677 Rock Wood Ct. Simi Valley had a ring camera facing the location of the SSO. Ring camera time showed 8:40 AM start. Spill end time 10:30 AM.	Debris-General; Other (specify below)	Large calcium deposit from I&I with debris caching on deposit.	Manhole		Ductile Iron		50	Impact of spill minimum. Street cleaned, storm drain cleaned, detention basin flushed and vacuumed. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Two crews arrived on site. The first crew arrived at 1676 River Wood Ct. GPS location 34.267975 -118.671484 and started vacuuming the spill eliminating more spill flow into storm drain. The second crew set up at downstream manhole and began to clear the blockage.  Flow was blocked in detention basin that flowed to the flood channel by filling 3  pipe with dirt to block the flow. Once blockage was cleared crew members started cleaning up by flushing down the street, flushing storm drain inlets and vacuuming detention basin. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		After CCTV determining the cause of the spill. We made a confined space entry into the downstream manhole to remove a large calcium deposit at the connection point of the line segment and the manhole. New steps planned for the future to prevent future spills are biannually inspect connection point for deposit build up and when seen on any other lines to submit a work order to remove the calcium deposit. Ordered 8  Diamond Tap Cutter Nozzle to remove I&I deposits without making confined space entries. Inspect line Bi-Annually to inspect I&I calcium deposit size.  	CIP Manhole rehab and CIPP sewer main. Bi-Annual inspection and possible removal of calcium deposit. 	07/22/2024 14:41	Large calcium deposit caused by I&I into the collection system at the connection point of the downstream sewer line and manhole. Over quarter of pipe was reduced down by the deposit. Flow was restricted causing debris; FOG build up and an apparent root ball from a private lateral caused the blockage.	N			Arroyo Simi Flood Control Channel	Stream/Creek		Concrete flood channel that has some flow.	none	Restricted Public Access		City of Simi Valley, Ventura County Watershed	7	N	Y	Sampled Just above, at and below the spill location 34.268456 -118.671819 into the Arroyo Simi Flood Control Channel.	Sampled for Total Coliform, E Coli, and Enterococcus.  Sampled for three days. 										
4	4SSO10420	Active	Rancho Palos Verdes City CS	Rancho Palos Verdes City	895702	1.2	Amended	Eric Liu	Civil Engineer	18-JUL-24	18-JUL-24	18-JUL-24	Category 1 Spill	1545 - 6850 Faircove Drive, Rancho Palos Verdes	06/07/2023 13:40	06/07/2023 14:30	06/07/2023 13:30	06/09/2023 14:34	23-3783		CSMD Map Sheet No. 1545 Overflowing Manhole Nos. 89 and 90 MMS No. 8301575 Note that this spill was originally reported as Category 2 (Event ID: 889443), but after further investigations, it was reclassified as Category 1. 	33.76435	118.39733	Manhole	Manhole Nos. 89 and 90		41907	Sewage discharged from Manhole Nos. 90 and 89 into Windport Canyon Creek which is tributary to Agua Amarga Canyon. 	N				Sewage discharged from Manhole Nos. 90 and 89 into Windport Canyon Creek which is tributary to Agua Amarga Canyon. 	41907	0	Other (specify below); Unpaved Surface	Windport Canyon Creek which is tributary to Agua Amarga Canyon	Sewage discharged from Manhole Nos. 90 and 89 into Windport Canyon Creek which is tributary to Agua Amarga Canyon. 	N									06/10/2023 16:00	Tributary connection method by engineering staff. 	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops. 	Debris-General		Gravity Mainline		Vitrified Clay		60	Spill occurred in Agua Amarga canyon preserve, no structure or property damage. flow contained to approximate 50'x20' area, quickly absorbed into native soil, and amongst native grasses, shrubs, chaparal growth. Public Health recommended avoiding contact with standing water in the Agua  Amarga Creek absorbed into the dry creek bed and didn't reach the ocean. 	N	Other Enforcement Agency Notified; Restored Flow		Hydro jet equipment was used to break down the mainline debris blockage. Notified all required agencies. City of Rancho Palos Verdes personnel assisted in spill response activity. 	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		The mainline was televised in 08/2023 and found a sag and a lot of sand in there. The point repair to remove and replace the sagging section between MH 90 and 91 was done by contractor in 09/2024.	N/A	06/10/2023 19:30	The mainline was televised in 08/2023 and found a sag and a lot of sand in there. The point repair to remove and replace the sagging section between MH 90 and 91 was done by contractor in 09/2024.	N			Windport Canyon Creek which is tributary to Agua Amarga Canyon	Stream/Creek		Windport Canyon Creek which is tributary to Agua Amarga Canyon	No impacts. 	Other (specify below)	Public Health recommended avoiding contact with standing water in the Agua  Amarga Creek absorbed into the dry creek bed and didn't reach the ocean. 	Public Health recommended avoiding contact with standing water in the Agua  Amarga Creek absorbed into the dry creek bed and didn't reach the ocean. 	0	N	N												
2	2SSO10091	Active	American Canyon, Public Works CS	American Canyon City PWD	895705	1.1	Certified	Chris Morris	Sewer Supervisor		29-JUL-24	29-JUL-24	Monthly Category 3 Spill	3070 Main St	06/28/2024 12:15	06/28/2024 12:15	06/28/2024 12:15				The spill originated from a single manhole at 3070 Main St. Photos and GPS coordinates included.	38.17642	-122.25401	Manhole			373	The spill was contained at and around the manhole that was overflowing, creating a puddle in the area but not going anywhere further. The spill area was approximately a 12' by 25' area around the manhole in a dirt/base rock field. Photos attached.	N						186	Unpaved Surface		The spill destination stayed at the overflowing manhole. A puddle approximately 12'x25' surrounded the manhole and did not flow anywhere. Please note the GPS coordinates are the same as the spill location, as it didn't go any further. Photos attached.	Y	38.17642	-122.25401							06/28/2024 13:03	The area upstream of where the spill occurred was a large area where multiple construction sites were and some residential and commercial established within. Diurnal flow estimation wouldn't work. Using the pick and vent hole estimation chart in our SERP also wouldn't work because the flow was so low it only seeped out the manhole seems (see photo). No SCADA or flow monitoring was in place since this is a gravity mainline. The only option was to measure the area and volume of the spill. An approximately 12'x25' area with an average of 2 inch depth was the spill footprint. 12 x 25 x .166(2 /12)x 7.48(gallons per cuft)= 373 (372.5) total gallons spilled. We believe this was the best method, with correct measurements, to accurately estimate spill volume. 	PLEASE NOTE: I, Chris Morris, was the first person to notice the spill as I was driving by at the time, as an operator I was already on site. The spill start time, notification time and operator arrival time are all the same. It was impossible to determine the spill start time earlier than the time I noticed it because no one was in the area, no other person noticed the spill and since it was hidden from the local construction. From the highway it looked like a puddle, so no one called it in. No one upstream had any flow issues, thus no calls. We had no other data to utilize to estimate spill start time. To estimate a spill start time that would be before the time I noticed, without the needed information, would be a guess and inaccurate to report. Regardless of the spill start time, we believe we estimated an accurate spill volume. 	Debris from Construction; Debris-Rags; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Other (specify below)	Asbestos Cement	50	No impact.	N	Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Spill was naturally contained in a puddle surrounding the overflowing manhole. Once blockage was cleared most of the spill flowed back into the manhole. No solids overflowed from the manhole, as pictures show flow seeping from the manhole seems. Pictures show no solids. The remaining spill had evaporated and a 3  layer of soil was removed with our Vactor.	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Plan Rehabilitation or Replacement of Sewer		This area is now checked weekly as part of our weekly hot spot checklist and cleaned more frequently when needed. Along with construction debris, grease, rags and wipes, the other cause of the spill is a new 15  main, for the new subdivision, flowing into an existing 6  main. This section is scheduled to get replaced and upsized to a 18  main as part of a CIP. Weekly inspections will continue until both construction is done and the new sewer main is in place.		06/28/2024 15:00	There were multiple causes of this spill event. One of the causes was construction debris. Our inspector was notified as well as a notice was sent out to everyone working in the area. We also did a field inspection of the whole area, looking for signs of dumping or recent activity and access to our sewer main. Another cause of the spill was grease, rags and wipes. We inspected the main and every cleanout upstream of the spill. Upon inspection of the whole area we did not find any sources of grease. We found a neighborhood with a lot of wipes. This area was cleaned and notices were sent out. The section of sewer main that caused the blockage is undersized. The new subdivision has a 15  main flowing into our exiting 6  main. This is part of a CIP and scheduled to get upsized to an 18  main.		We are currently monitoring the system in this area weekly to look out for any illegal dumping or use of our sewer system, until the construction is complete and the new sewer main is in place.	07/18/2024 15:00														During our investigation and inspection of all upstream connections we did not find any illicit discharge. Along with the construction debris found we suspected someone may be dumbing grease, such as a food truck, but we did not find any.	Modifications are, weekly inspections and more frequent cleaning (jetting), based on inspections. 	Weekly inspections as part of our weekly hot spot checklist and more frequent cleaning (jetting) based on inspections. Weekly field inspections of construction area (Watson Ranch subdivision) upstream of blockage. 	The section of pipe that the blockage occurred is part of a CIP and is currently in the design phase at the time of writing this. Early 2025 is estimated for this section to get replaced and upsized to 18 .	The asset appears to be structurally fine. The cause of the spill was construction debris, grease, rags and wipes. The pipe is undersized and partially to blame for the spill. Upstream is a new 15  main coming from the new subdivision flowing into the existing 6  main where the blockage occurred. 	Yes, the section of pipe that the blockage occurred is part of a CIP because it is undersized to meet the demands of a new subdivision upstream. This is currently in the design phase at the time of writing this. Early 2025 is estimated for this section to get replaced and upsized to 18 .	All implemented modifications such as weekly inspections and cleaning are documented and stored with the sewer supervisor.	No spill response modifications are needed at this time. Everything was handled efficiently and within compliance. Due diligence was performed throughout the process, including in depth investigation that included inspecting every single sewer connection upstream with our camera and sending outreach and notices. 	We are currently monitoring the system in this area weekly to look out for any illegal dumping or use of our sewer system, until the construction is complete and the new sewer main is in place.	
5S	5SSO10873	Active	Bear Valley CS	Bear Valley Water District (Bear Valley, CA)	895707	1.1	Certified	Jeff Gouveia	General Manager		01-AUG-24	01-AUG-24	Monthly Category 3 Spill	Highway 4	07/08/2024 07:32	07/08/2024 07:45	07/08/2024 07:20				Root intrusion in pipe segment caused SSO at manhole	38.46891	-120.03075	Manhole			190	Root intrusion in gravity line pipe segment caused SSO at manhole; photos uploaded in attachments; extent of spill boundary approximately 5 feet in circumference on native forest soil	N						0	Other (specify below)	forest soil	38.46891, -120.03075										07/08/2024 07:40	Calculation of lift station tank size and pump volume used to estimate volume discharged.  Spill percolated and absorbed fully into native forest soil, no spill volume recovered.	Daily visual gravity line and lift station inspections earlier the same morning showed no evidence of spill; public report shortly after daily visual inspection revealed spill had occurred; pumps were immediately turned off and spill response actions initiated to clear blockage and restore flow. 	Root Intrusion		Manhole		Polyvinyl Chloride (PVC)		50	Impact to adjacent native forest soil; spill fully absorbed into the soil	N	Mitigated Effects of Spill (specify below); Restored Flow	roots cut and removed from pipe segment	Turned off pumps feeding gravity line; Initiated spill emergency response plan; mobilized jetting equipment and CCTV camera; sent hydrojetter up pipe segment immediately clearing blockage and restoring flow; mobilized contract root cutter who cut and cleared all roots; removed roots in pipe segment with hydrojetter; daily follow up visual inspection of affected manhole and pipe segment to ensure no recurrence.	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Initiated spill emergency response plan; mobilized jetting equipment and camera; sent hydrojetter up pipe segment immediately clearing blockage and restoring flow; mobilized contract root cutter, removed roots in pipe segment; added pipe segment to escalated sewer preventative maintenance program; adjusted schedule of preventative maintenance program; evaluating pipe repair or replacement as part of capital improvement program.		07/10/2024 09:49	Investigation consisted of mobilized jetting equipment and CCTV camera; sent hydro jetter up pipe segment immediately clearing blockage and restoring flow; mobilized contract root cutter, removed roots in pipe segment; CCTV revealed all roots removed and obstruction no longer a threat; added to sewer preventative maintenance program; adjusted schedule of preventative maintenance program; evaluating pipe repair/replacement as part of capital improvement program		daily inspection of manhole and pipe segment to ensure unobstructed flow continues	07/22/2024 15:00														N/A	added to specific manhole and collection pipe segment to sewer preventative maintenance program; adjusted schedule of preventative maintenance program; evaluating pipe repair and timing as part of capital improvement program	collection line PM (hydro jetting and CCTV) schedule adjusted from every 5 years to monthly; 	under evaluation, potentially later summer 2024 or summer 2025	roots cut and removed by contract root cutter; pipe segment hydrojetted and inspected via CCTV following restoration of flow	asset repair/replacement added to capital improvement program	See Attachment	Scheduled an immediate meeting with the collection system maintenance team to reiterate the importance of mobilizing spill response equipment quickly and reviewed and stressed the importance of following the District's spill emergency response protocols. 	daily inspection of manhole and pipe segment to ensure unobstructed flow continues	
5S	5SSO11040	Active	Riverbank CS	Riverbank City	895712	1.3	Certified	Cody Bridgewater	Director of Public Works	18-JUL-24	24-JUL-24	24-JUL-24	Category 2 Spill	Westgate Lift Station	07/18/2024 11:45	07/18/2024 11:45	07/18/2024 11:45	07/18/2024 13:20	24-4110		spill from sewer lift station discharge pipe flange, entered neighboring property back yard, see photos	37.71803	-120.94054	Force Main	na	na	1950	spill entered neighboring property back yard	N	na	0	0			0	Unpaved Surface	na	spill reached neighboring yard	Y	37.71809	-120.94064							07/18/2024 14:00	using aerial imagery area with average depth of 3 inches	arrival time for beginning of spill estimate and shut down of pump station after draining force main	Pipe Structural Problem/Failure - Installation; Pump Station Failure - Mechanical	blown gasket on force main discharge line	Force Main	na	Ductile Iron	na	20	spill impacted unpaved surface and neighboring yard grass area	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Property Owner Notified	na	responded to site, pumped down lift station, drained force main, disassembled 14  discharge tee and replaced damaged gaskets with new	Repaired Facilities or Replaced Defect	na	replaced damaged gasket	na	07/18/2024 18:52	dug up tee, found leaking gasket, replaced with new	N	na	07/18/2024 18:52										N												na	
2	2SSO10183	Active	San Mateo CIty CS	San Mateo City	895714	1.5	Certified	Tony Baltodano 	PW Field Maintenance Manager 		22-JUL-24	22-JUL-24	Monthly Category 3 Spill	28th and Hacienda	07/18/2024 10:02	07/18/2024 10:15	07/18/2024 09:30				construction project inadvertently placed pneumatic plug in wrong sewer line	37.53938	-122.30828	Manhole	N/A		200	seeped out of manhole and flowed into storm drain	Y	large trunk line	200				200	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		two storm drain inlets and storm pipe	N									07/18/2024 09:50	visual 10 gpm	visual	Construction Diversion Failure		Manhole		Vitrified Clay		85	no impact	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		traced out spill point and flow, vacuumed, washed down, and sanitized area. jetted storm pipe	Other (specify below)	no corrective action needed	inappropriate placed pneumatic plug		07/18/2024 11:00	contractor inadvertently placed pneumatic plug in wrong line		n/a	07/18/2024 14:31														none	none	n/a	construction in progress	n/a	in progress	n/a	n/a	n/a	
3	3SSO10305	Active	Paso Robles CS	City of El Paso de Robles	895715	1.2	Certified	Casey Shepherd	Wastewater Manager	18-JUL-24	01-AUG-24	01-AUG-24	Category 2 Spill	Lift Station 12	07/17/2024 12:50	07/17/2024 13:30	07/15/2024 23:24	07/17/2024 17:17	24-4096		Spill occurred just upstream of lift station #12 in an open field on the side of a hill covered in weeds and brush. No public was present around the area as it is located in rural Paso Robles. GPS coordinates are 35.660170, -120.651867.  Wastewater staff noticed unusual pump trends on SCADA and went to investigate. upon arrival, they found sewage coming from a gopher hole. After hydrojetteing the sewer line, they reestablished flow and were able to video the line and confirm the pipe and broken from the top side which had created a blockage in the line and allowed wastewater to discharge underground. The wastewater discharged from the sewer system flowed downhill toward an abandoned wastewater plant where it was contained by an old concrete structure.	35.66017	-120.651867	Gravity Mainline			29680	Spill area covered approximately 1000 sq/ft to the south west. (see photos)	N						100	Unpaved Surface		Spill occurred just upstream of lift station #12 in an open field on the side of a hill covered in weeds and brush. No public was present around the area as it is located in rural Paso Robles.  Wastewater staff noticed unusual pump trends on SCADA and went to investigate. upon arrival, they found sewage coming from a gopher hole. After hydrojetteing the sewer line, they reestablished flow and were able to video the line and confirm the pipe and broken from the top side which had created a blockage in the line and allowed wastewater to discharge underground. The wastewater discharged from the sewer system flowed downhill toward an abandoned wastewater plant where it was contained by an old concrete structure.	Y	35.66017	-120.651867							07/17/2024 16:22	Spill volume was estimated using lift station pump design output volume (gpm) and lift pumping cycles provided on SCADA historian	Start time estimated off SCADA trends and end time based on city staff re-establishing flow by clearing blockage.	Root Intrusion		Gravity Mainline		Vitrified Clay		70	No major impact observed. Spill was located in rural area in very dry soil where it soaked into ground and dried quickly. Air temperature during spill was over 100 degrees.	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow		Immediate response included clearing the blockage with hydro-jetter to re-establish flow. Spill was not spreading rapidly due to absorption into dry soil. Cleanup included gathering and removing solids followed by spraying the area with a bleach/water solution.	Repaired Facilities or Replaced Defect		Replaced section of old vitrified clay pipe with new section of SDR 35 PVC sewer pipe. During construction, two large coyote bushes were removed that were contributing to root intrusion. 	Completed	07/25/2024 11:15	Root intrusion had caused old clay pipe to fail and created a blockage. 	N												N													
2	2SSO10216	Active	West County WW District CS	West County Wastewater District	895720	1.2	Certified	Gordon Times	Collection Systems Operations Manager	19-JUL-24	31-JUL-24	31-JUL-24	Category 1 Spill	2425 Lancaster Dr. Richmond Ca. 94806	07/17/2024 12:43	07/17/2024 12:48	07/16/2024 16:04	07/17/2024 13:38	24-4091		The spill appeared from cracks in the asphalted street.	37.97382	-122.3397	Other (specify below)	The spill appeared from cracks in the asphalted street.	The spill also appeared in the landscaping on the sidewalk.	31966	The spill appeared from cracks in the asphalted street as well as the landscaping on the sidewalk. It then ran down the street and into the storm drain. 	Y	The drainage conveyance system was storm drains.	11097	0	The storm drain leads to a creek.	20869	11097	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		The spill came up through cracks in the street and landscaping on the sidewalk. It ran down the street, gutter,  and went into the storm drain which leads to a creek.	Y	37.97375	-122.33947	37.97399	-122.33933	37.97219	-122.34337			07/17/2024 12:55	See Attachment for Volume Estimation	See Attachment	Debris from Lateral; Debris-General; Debris-wipes/Non-disposables; Pipe Structural Problem/Failure - Installation		Gravity Mainline		Vitrified Clay		60	The spill came up from cracks in the street, n down and landscaping on the sidewalk. It ran down the gutter and into the storm drain which leads to a creek.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Our crew was dispatched to the spill and immediately blocked the storm drains with sand bags. WE attempted to break the stoppage with our power rodder. Our first Vactor arrived shortly after and began to recover the spill. Our second Vactor arrived and assisted with cleaning and recovering the spill. We set up to perform a bypass of the plugged line. Once we were actively bypassing the plugged line we televised the line and discovered the line was broken at a previous repair site. We performed the repair, washed down the affected area and captured the remaining water with our Vactors.	Repaired Facilities or Replaced Defect		The affected area has been repaired.	The repair was televised and determined to be good.	07/17/2024 10:29	It was determined that a previous repair was made and was done incorrectly.	N			Rheem Creek	Stream/Creek		The body of water is a creek that travels to the bay.	Our lab personnel took samples.	Other (specify below)	NA	No restrictions were made.	0	N	Y	See Attachment	See Attachment										
9	9SSO10653	Active	City of Laguna Beach CS	Laguna Beach City	895721	1.1	Certified	Richard A Gonzales	Deputy Director of Public Works		30-JUL-24	30-JUL-24	Category 2 Spill	C/O Park Ave and Wendt Terrace	07/16/2024 09:34	07/16/2024 09:52	07/16/2024 09:15	07/16/2024 12:00	24-4066			33.54288	117.77251	Gravity Mainline; Manhole			2000	The spill originated from a manhole. 	Y	The pill ran into a storm drain 20 feet away from the manhole. The discharge was captured by a CDS unit located at 425 S. Coast Highway, in the city of Laguna Beach. 	2000	0			2000	Drainage Conveyance System		The spill was discharged into a storm drain and into a CDS unit located at 425 S. Coast Highway, Laguna Beach, CA.	Y	33.54288	117.77251							07/16/2024 09:55	The spill was estimated with an overflow gage multiplied by the duration of witness time. 	Witness interview and overflow gage were the methods used for estimation.	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure; Debris from Lateral; Root Intrusion		Gravity Mainline; Manhole		Vitrified Clay		50	Surcharged manhole overflow to the storm drain.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Utilized a Vactor and Jetter to remove debris. Used the Jetter truck to break the blockage. 	Adjusted Schedule/Method of Preventive Maintenance		The corrective action was removing root and debris blockage from the sewer line. 	N/A	07/16/2024 09:55	Investigation into the cause of the spill resulted in roots being wedged in the sewer mainline. The roots were generated by a plumber who jetted a sewer lateral. The shape and length of the roots determined this. 	N												N													
3	3SSO10334	Active	Seaside Co Sd CS	Seaside CSD	895723	1.3	Certified	Thomas Korman	District Engineer		18-DEC-24	18-DEC-24	Monthly Category 3 Spill	1081 Douglas	06/16/2024 14:15	06/16/2024 14:50	06/16/2024 13:30				The spill originated from a private lateral cleanout in the front yard of a residence. The spill was contained to an unpaved section of the yard, and did not leave the property.	36.598972	-121.836208	Lateral Clean Out (Private)			357	The spill was contained to the unpaved portion of the front yard.	N						0	Unpaved Surface		The spill was contained in the unpaved front yard		36.598972	-121.836208							06/16/2024 15:19	Time and flow calculation. 3 gpm x 119 minutes = 357 gal	estimation of 3 gpm	Debris-Rags; Root Intrusion		Gravity Mainline		Vitrified Clay		70	Area around clean out required disinfection. Spill contained to yard	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow		Staff contained the spill to the unpaved area of the front yard, and disinfected the spill area.	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Added to root intrusion treatment list	The roots were trimmed away, and the line was added to the root treatment list.		06/16/2024 17:00	Staff CCTV'd the line after clearing the blockage and found a root intrusion. The roots were cleared with a root trimmer. The line was added to the SCSD root treatment list.		No	06/17/2024 14:00														None	Location added to root treatment program	Added to root treatment program	None	None	None	None	None	No	
3	3SSO10334	Active	Seaside Co Sd CS	Seaside CSD	895728	1.2	Certified	Thomas Korman	District Engineer		18-DEC-24	18-DEC-24	Monthly Category 3 Spill	956 Wanda	06/29/2024 08:00	06/29/2024 08:40	06/29/2024 07:00				Single appearance point at lateral clean out for apartment building, located in the parking lot.	36.604342	-121.845958	Lateral Clean Out (Private)			280	Spill spread in the parking lot from the cleanout to a storm drain	Y	The spill reached a separate storm drain, and was fully contained and captured	280				280	Drainage Conveyance System that discharges to surface water; Paved Surface		The spill was captured in the storm drain.	Y	36.60435	-121.845958							06/29/2024 09:20	Measured volume from vactor truck	none	Debris-General; Debris-Rags		Gravity Mainline; Lower Lateral		Vitrified Clay		70	Paved parking area and storm drain system required cleaning and disinfection.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Staff contained the spill, blocked the storm drain down stream of the flow, restored flow to the sanitary sewer, removed all of the spill from the storm drain system, disinfected the storm drain system and parking lot area	Other (specify below)	None required. A bottle was causing the blockage. Bottle removed.	Blockage removed. Line CCTV'd, and found to be in good shape		06/29/2024 09:55	The staff CCTV's the line after the blockage was cleared. The line was found to be in good shape, and the blockage was not the result of roots or FOG. No programic modifications or repairs are required.		none	06/29/2024 11:37														none	none	none	none	none	none	none	none	none	
3	3SSO10307	Active	Pismo Beach CS	Pismo Beach City 	895731	1.2	Certified	William Haas	Utilities Manager	19-JUL-24	26-JUL-24	26-JUL-24	Category 1 Spill	120 Searidge Ct	07/19/2024 08:15	07/19/2024 08:25	07/19/2024 08:00	07/19/2024 11:00	24-4130		Force main began leaking behind the house at 120 Searidge Ct. It followed the drain to the curb and flowed to the storm drain	35.17061	-120.6952	Force Main		flowed across the yard to the gutter	120	flowed across the yard  entered a private drain and then hit the gutter	Y	storm drain at the bottom of the street	0	0	n/a	120	0	Street/Curb and Gutter (2 3)		spill surfaced in back of 120 Searidge ct.  Flowed across the yard to a gutter then to a storm drain	Y	35.17061	-120.6952							07/19/2024 21:00	visual estimate of flow gallon an hour	per resident phone call and when we stopped flow	Pipe Structural Problem/Failure - Controls		Force Main		Polyvinyl Chloride (PVC)		50	damage to residents yard.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow		Place vactor truck at storm drain. collected flow until we were able to stop it.  cleaned gutters and chlorinated	Plan Rehabilitation or Replacement of Sewer		placed a repair clamp on line	in planning.  replace or line pipe.	07/19/2024 21:00	located spill, pipe failed	N			Pacific Ocean	Ocean		Large ocean	none	Restricted Public Access		SLO County Health	1	N	Y	Beachcomber stairs  approximately 500yards south of spill location	coli form 										
5S	5SSO10910	Active	Copper Cove CS	Calaveras Cnty Water District	895733	1.2	Certified	Damon Wyckoff	Director Of Operations	21-JUL-24	26-JUL-24	26-JUL-24	Category 1 Spill	454 Sunrise Road	07/21/2024 12:51	07/21/2024 12:50	07/21/2024 11:00	07/21/2024 14:32	24-4153	26-JUL-24	37.901934 X -120.584044 Sewage daylighting out of a storm drain at 454 Sunrise Road via a storm drain. A temporary pump system at the lift station next to the storm drain inlet was shut off - vandalism. The pumps being off resulted in the wet well of the lift station filling and spilling over into the storm drain	37.901934	-120.584044	Pump Station			2700	Spill came out of the lift station's temporary bypass system and trenchplate  cover and flowed approximately 10 feet over the project site into a storm drain inlet which discharges into Lake Tulloch.	Y	Storm drain inlet and the outlet pipe flows into the lake	0	0	A 4 inch pipe that daylights just above the water line at the lake.	2700	0	Surface Water		37.90193 x -120.584044 storm drain outlet into Lake Tulloch	Y	37.90193	-120.58404							07/21/2024 14:00	Neighbors described the spill as beginning at 1100 - calculated 15 gpm for 3 hrs. 	neighbors estimation of start time. 	Damage by Others Not Related to Collection System Construction/Maintenance		Pump Station - Controls; Pump Station - Mechanical; Pump Station - Power		Other (specify below)	Tmeporary piping	1	no visible impacts to the lake.  See the attache CVRWQCB Report	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow		CCWD Staff directed Mozingo construction in the disinfection of the construction site with 5% bleach and the cleaning with potable water. 	Adjusted Schedule/Method of Preventive Maintenance		Implemented a checklist for pump ops and autodialer ops. 	Checklist was already implemented	07/21/2024 14:50	Pumps operating a termporary bypass system for a wastewater lift station rehab project were found turned off. - vandalism	N			Lake Tulloch	Lake		Lake owned by Tri Dam with homes on the shoreline, allows recreation, and is the source water for the CCWD-owned Copper Cove WTP.	None observed	Restricted Public Access		CCWD	7	N	Y	Bact -Ecoli	Total Coliform and E-coli										
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	895735	1.2	Certified	Gerald Watson	Sanitation Wastewater Manager III	23-JUL-24	26-JUL-24	26-JUL-24	Category 1 Spill	2700 South Cresta Place	07/20/2024 14:19	07/20/2024 15:07	07/20/2024 14:19	07/20/2024 16:49	24-4147		34.041447       -118.406955	34.041447	-118.406955	Gravity Mainline		City Sewer.	15967	Sanitary Sewer Overflow	Y	Ballona Creek	62	15905	Sanitary Sewer Overflow.	15967	62	Other (specify below)	Approximately 15,967 gallons of sewage backed out of the sewer as a result of the surcharge. The crew was able to establish containment and captured 62 gallons of sewage, returning it to the sewer system. The remaining 15,905 gallons of sewage entered an adjacent County of Los Angeles catch basin located at 10301 West Cresta Drive, which is tributary to Ballona Creek.	34.041447       -118.406955	Y	34.041447	-118.406955							07/20/2024 15:40	Approximately 15,967 gallons of sewage backed out of the sewer as a result of the surcharge. The crew was able to establish containment and captured 62 gallons of sewage, returning it to the sewer system. The remaining 15,905 gallons of sewage entered an adjacent County of Los Angeles catch basin located at 10301 West Cresta Drive, which is tributary to Ballona Creek.	Spill flowrate and volume determination based on flowout pickhole or opening 	Debris-General	The cause of the blockage in the sewer line was attributed to broken pipeline caused by Department of Water and Power water main break	Gravity Mainline		Vitrified Clay		99	Approximately 15,967 gallons of sewage backed out of the sewer as a result of the surcharge. The crew was able to establish containment and captured 62 gallons of sewage, returning it to the sewer system. The remaining 15,905 gallons of sewage entered an adjacent County of Los Angeles catch basin located at 10301 West Cresta Drive, which is tributary to Ballona Creek. 	N	Cleaned Up (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		the CWCD crew was able to remove the plug and the backup ceased at 3:40 PM. All necessary clean-up was then performed.  Approximately 15,967 gallons of sewage backed out of the sewer as a result of the surcharge. The crew was able to establish containment and captured 62 gallons of sewage, returning it to the sewer system. The remaining 15,905 gallons of sewage entered an adjacent County of Los Angeles catch basin located at 10301 West Cresta Drive, which is tributary to Ballona Creek. 	Plan Rehabilitation or Replacement of Sewer		As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The CCTV inspection revealed some damage to the pipeline that caused by the Department of Water and Power water main failure. An Emergency On-Call Contractor was mobilized to make the necessary repairs. In addition, this sewer system will be placed on a semi-annual cleaning frequency.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The CCTV inspection revealed some damage to the pipeline that caused by the Department of Water and Power water main failure. An Emergency On-Call Contractor was mobilized to make the necessary repairs. In addition, this sewer system will be placed on a semi-annual cleaning frequency.	07/20/2024 15:40	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken. The CCTV inspection revealed some damage to the pipeline that caused by the Department of Water and Power water main failure. An Emergency On-Call Contractor was mobilized to make the necessary repairs. In addition, this sewer system will be placed on a semi-annual cleaning frequency.	N		07/20/2024 15:40	Ballona Creek	Other (specify below)	Ballona Creek	Ballona Creek	None At This Time.	Public Closure	Beach Closed by County Health Department.	County Health Department	2	N	Y	1034 W. Monte Mar Drive. 5805 W. Jefferson Blvd - BC Upstream Lincoln & Culver Loop - BC Downstream   	Total Coliform 4.0E+03 MPN/100ml E. Coli <100 Enterococcus 8.0E+01 MPN/100ml										
4	4SSO10373	Active	Burbank City, Public Works CS	Burbank City DPW	895737	1.2	Certified	Stephen Walker	Assistant Public Works Director - Wastewater	23-JUL-24	31-JUL-24	31-JUL-24	Category 1 Spill	1900 Empire Ave./ Empire Center	07/19/2024 11:20	07/11/2024 11:23	07/19/2024 11:20	07/19/2024 14:27	24-4134	22-JUL-24	The SSO originated from City sewer manhole 18-249 located in the middle of Empire Ave by the center median at approximate GPS coordinates 34.19165, -118.33142. Please see the attached Empire Ave SSO Investigation report and SSO Photos. 	34.19165	-118.33142	Manhole	N/A	N/A	13500	The SSO originated from City sewer manhole 18-249 located in the middle of Empire Ave by the center median at approximate GPS coordinates 34.19165, -118.33142. The SSO traversed approximately 730 feet down Empire Ave. and into the catch basin located by the I-5 Freeway southbound on-ramp which drains via the Empire Pump Station into the Burbank Western Channel (not the Lockheed Channel as stated in the Investigation Report by Inframark).  The SSO was caused by what appears to be construction materials/debris (plywood, boulders, sandbags, rags, etc.).  The City is currently trying to determine if this was an illicit disposal or if the construction contractor was responsible for leaving the construction materials/debris in the sewer system when this was constructed in 2013.   Please see the attached Empire Ave SSO Investigation report and SSO Photos. 	Y	The SSO traversed approximately 730 feet down Empire Ave. and into the catch basin located by the I-5 Freeway southbound on-ramp which drains into the Burbank Western Channel.  Please see the attached Empire Ave SSO Investigation report and SSO Photos. 	606	12894	The SSO traversed approximately 730 feet down Empire Ave. and into the catch basin located by the I-5 Freeway southbound on-ramp which drains into the Burbank Western Channel.  Please see the attached Empire Ave SSO Investigation report and SSO Photos. 	12894	606	Drainage Conveyance System that discharges to surface water	N/A	The SSO originated from City sewer manhole 18-249 located in the middle of Empire Ave by the center median at approximate GPS coordinates 34.19165, -118.33142. The SSO traversed approximately 730 feet down Empire Ave. and into the catch basin located by the I-5 Freeway southbound on-ramp which drains via the Empire Pump Station into the Burbank Western Channel (not the Lockheed Channel as stated in the Investigation Report by Inframark).  Please see the attached Empire Ave SSO Investigation Report and SSO photos.	Y	34.19165	-118.33142							07/19/2024 12:50	The total SSO volume was calculated by multiplying the duration of the overflow by the overflow rate (90 minutes X 150 gallons per minute = 13,500 gallons). The SSO rate was determined using the CWEA Southern Section Collection Systems Committee's (SSCSC) Overflow Gauge.  Please note that before the obstruction in the City sewer main was removed, one vactor truck's worth of sewage was recovered and returned to the system. The vactor truck's capacity is 3 cubic yards which equates to approximately 606 gallons. Therefore, the total estimated amount of sewage that entered the storm drain and Burbank Western Channel was 12,894 gallons.   Samples were taken of the discharged sewage (in Empire Ave. before drainage catch basin) by the City's contractor, Inframark.    Please refer to the Volume Calculations and SSCSC Overflow Gauge, and the laboratory Certificate of Analysis in the attachments. 	The total SSO volume was calculated by multiplying the duration of the overflow by the overflow rate (90 minutes X 150 gallons per minute = 13,500 gallons). The SSO rate was determined using the CWEA Southern Section Collection Systems Committee's (SSCSC) overflow gauge.  Please note that before the obstruction in the City sewer main was removed, one vactor truck's worth of sewage was recovered and returned to the system. The vactor truck's capacity is 3 cubic yards which equates to 606 gallons. Therefore, the total estimated amount of sewage that entered the storm drain and Burbank Western Channel was 12,894 gallons. 	Debris from Construction; Debris-General; Other (specify below)	Boulders and plywood were also removed from the City sewer main. Please see the attached Empire Ave. SSO Investigation Report and SSO photos.	Manhole	N/A	Polyvinyl Chloride (PVC)	N/A	11	Approximately 12,894 gallons of raw sewage entered the Burbank Western Channel. Samples were taken of the discharged sewage (in Empire Ave. before drainage catch basin) by the City's contractor, Inframark.  See attached laboratory Certificate of Analysis.  Please also see the attached Empire Ave SSO Investigation Report and SSO photos.	N	Cleaned Up (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	The City sewer crew washed, sanitized, and vacuumed the affected area of Empire Ave. 	Upon arrival, the City sewer crew attempted to remove the obstruction in the City sewer main and recover some of the discharged sewage.  An excessive amount of construction materials was subsequently removed which included plywood and several large boulders. The City's contractor, Inframark, collected samples (in Empire Ave. before drainage catch basin) and prepared an investigation/report.  Once the obstructions were removed flow in the City sewer main returned to normal. The City sewer crew then proceeded to wash, sanitize, and vacuum the affected area of Empire Ave.   Please see the attached Empire Ave SSO Investigation report, SSO Photos, and Certificate of Analysis.	Other (specify below)	The City has been unable to determine whether the construction materials that caused the backup were left by the contractor in 2013, or if an illicit dumping of construction materials into the sewer manhole occurred more recently. 	The City continues to educate residents, businesses, and contractors regarding BMPs and preventing illicit dumping/discharges into the system.	N/A	07/19/2024 14:27	Upon arrival, the City sewer crew attempted to remove the obstruction in the City sewer main and recover some of the discharged sewage. An excessive amount of construction materials was subsequently removed which included plywood and several large boulders. The City's contractor, Inframark, collected samples (in Empire Ave. before drainage catch basin) and prepared an Investigation Report.  Once the obstructions were removed, flow in the City sewer main returned to normal at 12:50 PM on July 19, 2024. The City sewer crew then proceeded to wash, sanitize, and vacuum the affected area of Empire Ave.   The City has been unable to determine whether the construction materials that caused the backup were left by the contractor in 2013, or if an illicit dumping of construction materials into the sewer manhole occurred more recently.  Please see the attached Empire Ave SSO Investigation Report, and SSO photos.	N	N/A		See Item 14.B below.	Other (specify below)	The Burbank Western Channel, which drains to the LA River and eventually into the ocean.	The Burbank Western Channel, which drains to the LA River and eventually into the ocean.	N/A	Other (specify below)	No closure occurred.	N/A	0	N	Y	Samples were taken by City sewer manhole 18-249 located in the middle of Empire Ave by the center median at approximate GPS coordinates 34.19165, -118.33142. 	The parameters analyzed were E. coli, Ammonia, and Nitrate/Nitrite.  Please refer to the attached laboratory Certificate of Analysis.									N/A	
3	3SSO10265	Active	El Estero CS	Santa Barbara City PWD	895738	1.2	Certified	Esteban Zambrano	WWC Superintendent 		26-JUL-24	26-JUL-24	Monthly Category 3 Spill	1015 De La Vina St	06/07/2024 08:30	06/07/2024 08:45	06/07/2024 07:00				Spill discharge point at 1015 De La Vina Street from a floor cleanout inside the building after a private plumber had opened the cleanout.	34.41971	-119.70487	Inside Building or Structure; Lateral Clean Out (Private)			573	Approximately 573 gallons were discharged inside the building via a floor cleanout at 1015 De La Vina Street. A portion of the spill traveled outside the building to the parking lot, which was contained using sandbags and a vacuum unit by the responding team.  Please see attachment's.	N						573	Building or Structure; Paved Surface; Unpaved Surface		Approximately 573 gallons were discharged inside the building via a floor cleanout at 1015 De La Vina Street. A portion of the spill traveled outside the building to the parking lot, which was contained using sandbags and a vacuum unit by the responding team.  11.d. & 11.e. coordinates are from where spill appearance. 11.f. & 11.g. coordinates are where spill reached outside of building (contained).	Y	34.41972	-119.70486	34.41954	-119.70467					06/07/2024 09:34	The City of Santa Barbara provides SSO training using an inground simulator, calculation volumes per Sewer Spill Estimation Guide Per Orange County, and CWEA training. In addition, the city reviews every SSO with all staff to provide a training opportunity for SSO volume calculations and documentation requirements. 	The City of Santa Barbara provides SSO training using an inground simulator, calculation volumes per Sewer Spill Estimation Guide Per Orange County, and CWEA training. In addition, the city reviews every SSO with all staff to provide a training opportunity for SSO volume calculations and documentation requirements. 	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Other (specify below)	Lined CIPP	115	Approximately 573 gallons of waste were discharged inside the building through a floor cleanout at 1015 De La Vina Street. This resulted in flooding, leading to the closure of the laundromat. A contractor hired by the owner subsequently cleaned and disinfected the building. The spill that traveled outside the building was contained and recovered by the city responding team. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	Inspected sewer using CCTV to determine cause	The emergency responder contained the spill that had traveled outside the building using sandbags to prevent it from entering the storm drain inlet.  The standby crew set up sandbags and a vacuum unit to contain the spill outside the building at the parking lot.  City staff sanitized and washed down the spill area and recovered washed-down water.  The building was cleaned and sanitized by a contractor hired by the owner. 	Other (specify below)	Door hangers� public outreach. Install SmartCover at upstream MH. 	Door hangers� public outreach.  Install SmartCover at the upstream MH. 		06/07/2024 17:35	See attachment. 		N/A	06/07/2024 17:35														N/A	N/A	Installed smartcover upstream MH	N/A	CCTV Inspection of sewer main	N/A	N/A	N/A	N/A	
9	9SSO10676	Active	Meadowlark CS	Vallecitos Water District	895740	1.2	Certified	Ed Pedrazzi	O&M Manager	24-JUL-24	30-JUL-24	30-JUL-24	Category 1 Spill	7941 Corintia St Carlsbad CA 92009	07/20/2024 06:20	07/20/2024 06:20	07/20/2024 01:17	07/20/2024 08:45	24-4140	22-JUL-24	The sewer spill was caused by the failure of an air/vacuum relief valve (air/vac) on the Meadowlark Water Reclamation Facility�s (MWRF) solids force main. The site of the leak was at the entrance gate to the treatment plant located at 7941 Corintia Street in Carlsbad, California.	33.104621	117.227868	Other (specify below)	Air/Vacuum Relief Valve.		2661	The spill ran down the gutter from 7941 Corintia St and then turned down Fioli Cir. It ran down Fioli where it entererd a brow ditch which was a mix of large rock and dirt. At the end of the brow ditch it entered a drainage grate that discharged to an open concrete brow ditch and then San Marcos Creek. 	Y	See question 9 answer.	10	0	See question 9	2651	10	Surface Water		San Marcos Creek into deep canyon.	Y	33.104422	117.225594							07/20/2024 07:25	See tehnical report in attachments	see above question 3.	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure		Air Relief Valve (ARV)/ Blow-Off Valve (BOV); Force Main		Polyvinyl Chloride (PVC)		8	No impact. Spill discharged to street curb and gutter and was cleaned all the way to surface grate in residential neighborhood. Surface grate was removed and cleaned as well. Spill reached the San Marcos Creek where it became inaccessable. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned Portion of Spill to Sanitary Sewer System		The Vallecitos Wastewater Collections crew responded to the sewer spill. The first combination truck onsite (Vehicle #293) began collecting the sewer spill flow at 7:30 AM from the curbline on Fioli Cir. The second combination truck onsite (Vehicle #240) began collecting the sewer spill flow at 7:45 AM. The isolation valve was turned off at 7:25 AM, so there was only a residual amount of sewer flowing along the gutters when the combination trucks arrived. The crews washed down the gutters along Corintia Street and Filoli Circle and cleaned the storm drain/brow ditch up to the point where the flow entered San Marcos Creek. 3000 gallons of water was used to washdown spill area and was collected. Afterward we returned and sprayed down disinfectant. Trees and heavy vegetation in the creek prevented any further action	Adjusted Schedule/Method of Preventive Maintenance; Repaired Facilities or Replaced Defect		Air/Vac put on annual preventative maintenance schedule. In the next fiscal year we will also budget for a stainless model that is better suited for high pressures seen in a force main. 	See above	07/20/2024 14:30	No investigation, there was a failure in the Air/Vac on the solids force main. 	N			San Marcos Creek	Stream/Creek		Creek in canyon. 	No obseved impact. 	Other (specify below)	None. Other than the neighborhood, which was thourouly cleaned, the spill discharged to an area inaccessable to people. 	N/A	0	N	N												
2	2SSO10198	Active	Stege SD CS	Stege Sanitary District	895742	1.2	Certified	Paul Soo, Jr.	Senior Civil Engineer		24-JUL-24	24-JUL-24	Monthly Category 3 Spill	1700 Manor Cir., El Cerrito, CA 94530	07/21/2024 15:25	07/21/2024 16:00	07/21/2024 14:00				See Attachment	37.92436	-122.31288	Lateral Clean Out (Private)			210	n/a	N						210	Paved Surface		SSO collected in a pool in the curb & gutter near 1724 Elm St., El Cerrito, CA 94530.	Y	37.92391	-122.31263							07/21/2024 17:00	Counting houses method.  Assuming 7gallons per hour during the time of the SSO.  10 houses x 3 hours.  7x10x3 = 210 gallons.	Assumed SSO start time was when the property owner arrived home at 2 pm.	Damage by Others Not Related to Collection System Construction/Maintenance		Gravity Mainline		Vitrified Clay		74	n/a	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		n/a	Repaired Facilities or Replaced Defect		n/a		07/21/2024 23:00	On 7/14, the previous Sunday EBMUD experienced a water main break that damaged the sewer line.   EBMUD did not notify Stege Sanitary District of the water main break or that the sewer line could have been damaged as a result of the water main break.  Had EBMUD notified Stege crews could have CCTV inspected sanitary sewer lines for any damage and prevented this SSO., 		n/a	07/21/2024 23:00														n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a	
5S	5SSO10901	Active	City of Sacramento Utilities CS	Sacramento City	895743	1.2	Certified	Kevin Guerra	Superintendent		22-JUL-24	22-JUL-24	Monthly Category 3 Spill	1177 43rd Ave. Sacramento, Ca. 95222	06/04/2024 07:39	06/04/2024 08:11	06/04/2024 07:35				The spill appearance point was a manhole located in the street.	38.51644	-121.51517	Manhole			332	The spill left the manhole in the street and traveled South to the gutter pan. It then traveled East to a Drain Inlet where it entered the conveyance system, and it was contained and captured in the drainage main 2 sections downstream.	Y	The drainage system is made up of Drain inlets and gravity mains, going to a detention basin.	332				332	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		The spill left the manhole in the street and traveled South to the gutter pan. It then traveled East to a Drain Inlet where it entered the conveyance system, and it was contained and captured in the drainage main 2 sections downstream.	Y	38.51483	-121.51474	38.51647	-121.51828					06/04/2024 08:23	The spill volume was calculated using the measurements and area of the spill on the ground. And adding this to the amount we calculated that was trapped in the drainage main using a cylinder volume calculation.. 	The spill was called in by a city employee, they stated that when they drove by at 7:35 on their way in to work, the spill had not made it to the gutter pan. The responder who arrived on site 20 minutes later stated the spill had reached the drain inlet and was in the drainage system, this supported the callers statement. The spill end time was recorded by the responder when they unplugged the sewer main.	Other (specify below)	No cause was found	Gravity Mainline		Vitrified Clay		70	The spill had no impact to service or the environment.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		The responder immediately put  dirt in the gutter damming the spill, and relieved the plugged sewer main. He then tested the drainage manholes until he got a negative test 2 main sections downstream of the drain inlet the spill entered. The area was washed down, and the drainage mains were cleaned and vacuumed, the entire spill was returned to the sewer system.	Inspected Sewer Using CCTV to Determine Cause		N/A		06/04/2024 10:04	The main was on a schedule and cleaned on time. The CCTV inspection showed  there were no obvious signs for the cause of the spill. We have no history of an issue with this main. 		N/A	06/11/2024 12:10														N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	
5F	5SSO11297	Active	Fresno Co 41-Shaver Lake CS	County of Fresno	895754	1.1	Certified	Nathalie Montejano	Program Technician		22-JUL-24	22-JUL-24	Monthly Category 3 Spill	Granite Ridge and Bretz Road	07/19/2024 12:00	07/19/2024 12:30	07/19/2024 08:00				Spill flowed from manhole downhill to storm drain. 	37.08618	-119.30916	Manhole			800	See attached photos with descriptions. 	Y	Roads storm drain. 	0				0	Drainage Conveyance System		Spill traveled downhill 10 ft into a storm drain. See attached photos. 										07/19/2024 17:00	Estimated based on spill area and average flows. 	Field staff assessments. 	Debris-General		Manhole		Concrete		49	Spill was absorbed by ground and ran into a drainage culvert. 	N	Cleaned Up (specify below)		Spill was absorbed into the ground. 	Adjusted Schedule/Method of Preventive Maintenance		Checked other manholes in the area to ensure there was no other blockage. 		07/19/2024 17:00	Manhole was backed up by an unknown responsible party. 		None. 	07/19/2024 17:00														No enforcement action taken. 	N/A	N/A	N/A	N/A	N/A	N/A	N/A	None. 	
5S	5SSO11045	Active	Sacramento Regional CS	Sacramento Area Sewer District (merged)	895759	1.3	Certified	Clarence Lunde	Director of EchoWater Operations	22-JUL-24	01-AUG-24	01-AUG-24	Category 2 Spill	346401	07/18/2024 08:45	07/18/2024 09:30	07/18/2024 08:00		-		See Attached Spill map with Photos.	38.5723	-121.4207	Force Main			45329	See Attached Spill Map with Photos	N	N/A	0	0			45329	Paved Surface; Unpaved Surface		See attached Spill Map with Photos.	Y	38.5723	-121.4207							07/19/2024 08:12	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Damage by Others Not Related to Collection System Construction/Maintenance	A third-party contractor performing vertical drilling damaged the force main causing the spill.	Force Main		Other (specify below)	Prestressed Concrete Cylinder Pipe	47	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	The remaining spill contaminated soil was removed and taken to a landfill.	See Attached Description of Spill Event	Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect		SacSewer temporarily repaired the damage to the force main on July 19, 2024. SacSewer will make a permanent repair to the force main.	SacSewer is targeting completion of the permanent repair by September 30, 2024.	07/23/2024 08:42	See Attached Description of Spill Event	N												N													
2	2SSO10127	Active	Delta Diablo SD CS	Delta Diablo	894909	2.1	Certified	Trevor Simpson	Maintenance Supervisor	17-MAY-24	22-JUL-24	22-JUL-24	Category 1 Spill	696 W Tenth St, Pittsburg, CA , 94565	05/16/2024 10:22	05/16/2024 10:37	05/15/2024 18:30	05/16/2024 12:00	24-2806	03-JUN-24	We believe that the majority of the spill remained in a dirt culvert, and we are waiting for test results to determine if sewage entered a storm system.	38.03157	121.89844	Other (specify below)	Our contractor suffered a bypass pumping system failure which resulted in raw sewage being discharged onto the ground.	See attachment  A 	9000	We are waiting on lab test results to confirm.	Y	We have confirmed through lab testing that sewage did enter the drainage conveyance system through the South Storm Catch Basin, from there it traveled North, to the immediate downstream North Storm Catch Basin. We tested immediately upstream and downstream from the North Storm Catch Basin and did not find evidence of Raw Sewage Contamination. We estimate that only a small portion, perhaps 50 gallons or less reached the storm catch basin.	50	0	We have confirmed by testing for ammonia that no sewage reached a surface water.	0	7500	Drainage Conveyance System that discharges to surface water; Unpaved Surface		A temporary bypass pumping system was staged in a section of dirt adjacent to a private roadway. The discharge piping dislodged from the manhole it was discharging into and sewage sprayed across the roadway and into the dirt where the bypass system was staged.	Y	38.03161	-121.898373	38.031611	-121.898419	38.031097	-121.898405	38.031097	-121.898478	05/15/2024 18:35	The spill volume estimate was based on the pumping system flowrate and the onsite bypass system operator's observations.	On 5/15/24 at or about 6:30 pm, the discharge line w/ 90 deg fitting into ROMHR5 kicked up caused by the surge of the second pump kicking in to manage the higher flows. When the 90 deg. fitting kicked, it turned up and began discharging sanitary waste onto the shoulder of the road at the job site. There was a crew onsite when this happened and it believed that the discharge line was dislodged for about 2-3 mins. Based on the Average Pump Flow Rate of 1,750 GPM, the total amount of spilled raw sewage was between 7k and 9k gallons. (1,750 GPM x 1.75 x 3 mins). After the fitting disloged, the pumps were immediately shut down in order to reposition the discharge line back into the MH. 	Construction Diversion Failure		Other (specify below)	A bypass pumping system which was discharging into an open manhole experienced an unexpected pressure increase. The additional pressure caused the discharge piping to rise from the manhole and discharge across the pavement, into the dirt culvert at the side of the road.	Other (specify below)	The pipe was made from aluminum.	1	The spill occurred on a private road at the entrance of a former power plant that is being decommissioned. The spill saturated the ground where a bypass pumping system was staged.  All soil contaminated with raw sewage was removed on 7/8/2024 at the conclusion of the bypass project.	N	Cleaned Up (specify below); Property Owner Notified; Returned All Spill to Sanitary Sewer System	We used a 6  Diesel trash pump and two 2  submersible pumps to dewater the storm water conveyance system, all of the water which we pumped out was returned to our gravity system, and treated at out TP. Using Ammonia and lab analysis, we confirmed that we recovered all spilled sewage, and that no sewage entered surface waters.  After confirming now sewage reached surface waters, we removed the soil which came into contact with raw sewage. The contractor hauled the soil away and placed it at their storge yard.	We were not notified of the spill until the morning following the event, when we arrived there were two puddles and dirt surrounding the area was damp. We had received significant rain a week prior, so there was some disagreement about what resulted from the spill, vs what was from the recent rain. Our crew vacuumed up all of the standing water and as much of the contaminated soil as there were able to. After cleaning the ground, our crew vacuumed the water from the storm catch basin we observed a positive ammonia sample from. After filling the tank completely, the level in the catch basin did not drop, so we resorted to using a trash pump to dewater the stormwater conveyance system. After dewatering the system, our lab sampled at four locations and confirmed that we removed all the contaminated water and none reached a surface water.	Other (specify below)	The contractor anchored the discharge piping to the pavement and weighted it with a concrete block so that it could not rise out of the manhole. We also required the contractor to lock out the third standby pump so that it could not be called to run under any circumstance.	The contractor secured the discharge piping to the pavement with anchors, and they weighted the piping with a large concrete block. The third standby pump was locked out so it could not be called to run automatically. A containment berm was added in front of the storm catch basin so that a future spill could not enter the stormwater system.	5/15/24 @ approximately 6:30pm SSO occurred 5/16/24 Delta Diablo notified of SSO, standing water and contaminated soil was cleaned up. 5/17/24 Stormwater Collection System was completely dewatered, and testing demonstrated negligible presence of Ammonia. 5/18/24 - 5/19/24 (2) 2  submersible pumps left in North Storm Catch Basin to remove any stormwater entering the system. 5/19/24 Field and Lab testing demonstrated that we recovered all sewage, and none reached a surface water. 7/8/2024 The soil contaminated by raw sewage was mechanically removed and hauled off for disposal.	07/08/2024 14:32	The primary cause of the SSO was improperly anchored discharge piping that dislodged when a second pump started due to higher flows. A secondary cause was the lack of a discharge stinger reaching down into the manhole, had one been employed, the discharge piping could have traveled vertically without spilling. This third mistake was not installing a berm in front of the Storm Catch Basin to prevent a spill from reaching the Storm Catch Basin.	N			We recovered the spill and returned it to our system.	Other (specify below)	Sewage entered a stormwater drainage system, but ammonia testing and lab testing demonstrated that the contaminated water was all recovered and returned to our system.	Sewage entered a portion of the stormwater drainage system, but we were able to recover and return the entire spill volume to our system. Lab analysis of the Stormwater drainage system confirmed that no sewage reached surface waters.	None	Restricted Public Access	The spill occurred on the side of a private road at the entrance of a power plant that is being decommissioned, there is limited public access to the area and no public access impact.	Delta Diablo	0	N	Y	South Storm Catch Basin - this is where sewage entered the system North Storm Catch Basin - this is immediately downstream from SSCB Northwest Storm Catch Basin - downstream NSCB Northeast Storm Catch Basin - upstream NSCB	Ammonia, Fecal Coliform, Enterococcus, E. coli										
2	2SSO10217	Active	West Valley Sd CS	West Valley SD	895771	1.3	Certified	Kelvin Hatchett	Operations Supervisor	23-JUL-24	30-JUL-24	30-JUL-24	Category 2 Spill	14506 Big Basin Way Saratoga	07/18/2024 15:15	07/18/2024 15:59	07/18/2024 14:53		-		Blockage in mainline # 5-095-03 to 5-094-01 Blockage caused by broken pipe, spill location Clean out at 14506 Big Basin Way. 	37.25729	-122.03405	Lateral Clean Out (Public)		None	3100	Spill was contained in the drainage system due to a blocked storm drain pipe downstream. Spill was limited to the sidewalk, gutter and Catch basin upstream. 	Y	 Series of Catch basins, Storm Pipes and manholes to an outfall, Entry point catch basin. Pipe blocked prior to outfall. (see attachments)	3100	0			3100	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		Spill entered a catch basin and traveled downstream to a storm pipe which was blocked with debris. This contained the spill and allowed us to recover all of the spill. 	Y	37.25727	-122.03405	37.25733	-122.03398	37.25772	-122.03429	37.25803	-122.03404	07/18/2024 21:16	The spill volume was determined from the volume recovered by the district's HVC Vactor units. Two full debris tank loads consisting of 1,300 gallons/load were recovered. A third partial load, consisting of a total of 1,000 gallons was also recovered. This partial load consisted of 500 gallons of wash water and, therefore, the other half (500 gal) is considered to be part of the spill. The total volume the spill is; 2 loads x 1,300 gallons/load + 500 gallons= 3,100 gallons. 	Witness at 14506 Big Basin observed spill not occurring at 14:30 and the reporting party (City of Saratoga staff) witnessed the clean out spilling and called the district at 15:15. The start time is assumed to be in between those two events at 14:53. End time occurred when the pumped bypass was installed and running at 21:16. 	Pipe Structural Problem/Failure - Controls		Gravity Mainline		Vitrified Clay		46	Traffic was impacted, Drainage System and several businesses.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Upon arrival crew placed sand bags to reduce flow of spill. Vacuum tubes were place in Catch basin to begin recovery. Impacted storm system was traced out to find outfall location, it was found to be dry. Upstream manhole (from outfall) was blocked with sand bags and a vacuum unit was placed at this location in case blockage in storm system was relieved or any spill made it way downstream. After pipe was repaired Crews cleaned storm system, washed down street and gutter (while vacuuming) removed all debris and spill from drainage system.     	Repaired Facilities or Replaced Defect		Pipe was repaired and televised no other problems found.	Pipe was permanently  repaired on 07/19/2024	07/19/2024 00:15	After bypass pumps were in place, CCTV revealed a broken pipe 7' from downstream manhole. Repairs were completed and a CCTV follow up was performed to ensure no further problems existed.    	N												Y													
6A	6SSO11110	Active	North Tahoe Public Utility Dst CS	North Tahoe PUD	895774	1.3	Certified	Ken Fischer	Utility Operations Manager	23-JUL-24	02-AUG-24	02-AUG-24	Category 1 Spill	Carnelian Bay Sewer Spill Incident	07/18/2024 20:23	07/18/2024 20:35	07/18/2024 20:00	07/18/2024 20:11	24-4120	03-SEP-24	Between 5000 and 5074 North Lake Blvd. Carnelian Bay Ca. 96140 In the Caltrans right of way in the eastbound bike lane roughly 3' from the fog line. Roughly 100' east of the first driveway to 5000 North Lake Blvd.	39.22541	-120.08363	Force Main; Manhole		2nd spill point is at manhole at the intersection of Onyx and Turquoise Carnelian Bay, Ca. 96140. 	125000	Attached photos show the spill areas. The 1st spill includes the parking lot, storm water basin and beach area at 5000 North Lake Blvd. 2nd location includes the storm water basin at the corner of Onyx and Turquoise Ave. both in Carnelian Bay Ca. 96140	Y	 Parking lot area of 5074 North Lake Blvd. 	40000	0	The spill discharge went into the surface water lakeward of the bathrooms at 5074 North Lake Blvd, entered the surface water over a roughly 200' distance along the shore line.	85000	40000	Building or Structure; Drainage Conveyance System; Groundwater Infiltration Basin or Facility; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		Location 1.d. & 1.e. between 5000 & 5074 North Lake Blvd. Carnelian Bay Ca. wastewater began flowing out of the ruptured pipe easterly down the gutter and across the parking lot at 5074 North Lake Blvd. The spill continued through the parking into the restrooms in the southeast corner. The flow continued around the restrooms across the paver walkways, over the lawn area, down the beach and shoreline reaching the surface water of Lake Tahoe. The spill that flowed down the gutter easterly along North Lake Blvd roughly 200 feet and enter several DI's that drained into the retention pond area to the east of 5074 North lake Blvd. The second part of the spill is located at 1.f. & 1.g. this is the retention pond across from our Carnelian Main Sewer Pump Station at corner of Onyx and Turquoise. We were using vacuum trucks to pull sewer from the manhole in the street to export it around the spill. Sewer was discharged into the pond.	Y	39.22552	-120.08241	39.22771	-120.07958					07/19/2024 03:00	The spill volume estimation methods included: The volume of the forcemain that drained back to and was released at the third party damage site on the forcemain. SCADA records of pump station run times, wet well elevations and metered flows to estimate volume of spill that discharged to the second appearance point.   SCADA records of pump station run times, wet well elevations and metered flows to estimate the volume of spill that was recorded and returned to the sanitary sewer system.	The estimation of the spill start time and the spill end time were estimated using hand written logs of personnel on site and SCADA records of pump station run time, wet well elevations and metered flows.	Damage by Others Not Related to Collection System Construction/Maintenance	Contractor working in roadway drilled through the crown of the 24-inch sewer forcemain while installing roadway improvements.  These roadway improvements are not associate with the collection system	Force Main		Other (specify below)	24-inch welded steel pipeline with cement mortar linings and asphaltic coatings.	56	At approximately 8 PM on 7/18/24 (see 1.d. and 1.e. locations) a contractor using a 24  auger drilled into the North Tahoe PUD wastewater 24  force main putting a 10  diameter hole in the top of the pipe. Immediately wastewater began flowing out of the pipe easterly down the gutter and across the parking lot at 5074 North Lake Blvd. The spill continued through the parking into the restrooms in the southeast corner. The flow continued around the restrooms across the paver walkways, over the lawn area, down the beach and shoreline reaching the surface water of Lake Tahoe. The spill that flowed down the gutter easterly along North Lake Blvd entered several DI's roughly 200 feet that drained to the retention pond area to the east of 5074 North lake Blvd. The second part of the spill is located at 1.f. & 1.g. this is the retention pond across from our Carnelian Main Sewer Pump Station at corner of Onyx and Turquoise. We were using the manhole in the street to pull sewer from to export it.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		A call came into our afterhours call center at 20:23. First North Tahoe PUD employee was on site at 20:35. Multiple district employees were called in to help immediately. We started holding sewer back at 21:00 at multiple pump stations. Calls went out to surrounding districts for vacuum trucks. The force main valve upstream was closed at roughly 21:15 to help reduce back flow from the force main. The ruptured pipe area was cleared and access to the pipe was done with vacuum excavation. The repair was completed at 03:35 by installing a full circle clamp. The system was back to normal operation before 05:00. Clean up began immediately. The gutters, DI's, pavers and parking lot areas were washed down and disinfected with bleach. All liquid was sucked up with vacuum trucks and dumped into the sewer system. Lawn area was removed. The beach, shoreline and retention ponds were raked up and disinfected. Debris were removed and was hauled to proper landfill.	Other (specify below)	The pipeline was damaged by a private contractor performing work in the right-of-way of North Lake Blvd.  The contractor was not working for the NTPUD. The pipeline damage was not a result of existing defects or FOG.	Not applicable. The pipeline was damaged by a private contractor performing work in the right-of-way of North Lake Blvd.	Not applicable. The pipeline was damaged by a private contractor performing work in the right-of-way of North Lake Blvd.	07/26/2024 17:00	The pipeline was damaged by a private contractor performing work in the right-of-way of North Lake Blvd.	Y	The incident is being investigated to determine the events leading up to the pipeline being damaged including the responsible party and the value of the damage.	12/30/2024 17:00	Lake Tahoe	Lake		Lake Tahoe. Adjacent to Carnelian Bay, CA.	None.	Public Closure		Placer County	13	N	Y	Sample location maps attached.	Samples were collected for total coliform, fecal coliform, E. Coli and ammonia.									The incident is being investigated to determine the events leading up to the pipeline being damaged including the responsible party and the value of the damage.	
6A	6SSO11110	Historical	North Tahoe Public Utility Dst CS	North Tahoe PUD	895774	1.3	Certified	Ken Fischer	Utility Operations Manager	23-JUL-24	02-AUG-24	02-AUG-24	Category 1 Spill	Carnelian Bay Sewer Spill Incident	07/18/2024 20:23	07/18/2024 20:35	07/18/2024 20:00	07/18/2024 20:11	24-4120	03-SEP-24	Between 5000 and 5074 North Lake Blvd. Carnelian Bay Ca. 96140 In the Caltrans right of way in the eastbound bike lane roughly 3' from the fog line. Roughly 100' east of the first driveway to 5000 North Lake Blvd.	39.22541	-120.08363	Force Main; Manhole		2nd spill point is at manhole at the intersection of Onyx and Turquoise Carnelian Bay, Ca. 96140. 	125000	Attached photos show the spill areas. The 1st spill includes the parking lot, storm water basin and beach area at 5000 North Lake Blvd. 2nd location includes the storm water basin at the corner of Onyx and Turquoise Ave. both in Carnelian Bay Ca. 96140	Y	 Parking lot area of 5074 North Lake Blvd. 	40000	0	The spill discharge went into the surface water lakeward of the bathrooms at 5074 North Lake Blvd, entered the surface water over a roughly 200' distance along the shore line.	85000	40000	Building or Structure; Drainage Conveyance System; Groundwater Infiltration Basin or Facility; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		Location 1.d. & 1.e. between 5000 & 5074 North Lake Blvd. Carnelian Bay Ca. wastewater began flowing out of the ruptured pipe easterly down the gutter and across the parking lot at 5074 North Lake Blvd. The spill continued through the parking into the restrooms in the southeast corner. The flow continued around the restrooms across the paver walkways, over the lawn area, down the beach and shoreline reaching the surface water of Lake Tahoe. The spill that flowed down the gutter easterly along North Lake Blvd roughly 200 feet and enter several DI's that drained into the retention pond area to the east of 5074 North lake Blvd. The second part of the spill is located at 1.f. & 1.g. this is the retention pond across from our Carnelian Main Sewer Pump Station at corner of Onyx and Turquoise. We were using vacuum trucks to pull sewer from the manhole in the street to export it around the spill. Sewer was discharged into the pond.	Y	39.22552	-120.08241	39.22771	-120.07958					07/19/2024 03:00	The spill volume estimation methods included: The volume of the forcemain that drained back to and was released at the third party damage site on the forcemain. SCADA records of pump station run times, wet well elevations and metered flows to estimate volume of spill that discharged to the second appearance point.   SCADA records of pump station run times, wet well elevations and metered flows to estimate the volume of spill that was recorded and returned to the sanitary sewer system.	The estimation of the spill start time and the spill end time were estimated using hand written logs of personnel on site and SCADA records of pump station run time, wet well elevations and metered flows.	Damage by Others Not Related to Collection System Construction/Maintenance	Contractor working in roadway drilled through the crown of the 24-inch sewer forcemain while installing roadway improvements.  These roadway improvements are not associate with the collection system	Force Main		Other (specify below)	24-inch welded steel pipeline with cement mortar linings and asphaltic coatings.	56	At approximately 8 PM on 7/18/24 (see 1.d. and 1.e. locations) a contractor using a 24  auger drilled into the North Tahoe PUD wastewater 24  force main putting a 10  diameter hole in the top of the pipe. Immediately wastewater began flowing out of the pipe easterly down the gutter and across the parking lot at 5074 North Lake Blvd. The spill continued through the parking into the restrooms in the southeast corner. The flow continued around the restrooms across the paver walkways, over the lawn area, down the beach and shoreline reaching the surface water of Lake Tahoe. The spill that flowed down the gutter easterly along North Lake Blvd entered several DI's roughly 200 feet that drained to the retention pond area to the east of 5074 North lake Blvd. The second part of the spill is located at 1.f. & 1.g. this is the retention pond across from our Carnelian Main Sewer Pump Station at corner of Onyx and Turquoise. We were using the manhole in the street to pull sewer from to export it.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		A call came into our afterhours call center at 20:23. First North Tahoe PUD employee was on site at 20:35. Multiple district employees were called in to help immediately. We started holding sewer back at 21:00 at multiple pump stations. Calls went out to surrounding districts for vacuum trucks. The force main valve upstream was closed at roughly 21:15 to help reduce back flow from the force main. The ruptured pipe area was cleared and access to the pipe was done with vacuum excavation. The repair was completed at 03:35 by installing a full circle clamp. The system was back to normal operation before 05:00. Clean up began immediately. The gutters, DI's, pavers and parking lot areas were washed down and disinfected with bleach. All liquid was sucked up with vacuum trucks and dumped into the sewer system. Lawn area was removed. The beach, shoreline and retention ponds were raked up and disinfected. Debris were removed and was hauled to proper landfill.	Other (specify below)	The pipeline was damaged by a private contractor performing work in the right-of-way of North Lake Blvd.  The contractor was not working for the NTPUD. The pipeline damage was not a result of existing defects or FOG.	Not applicable. The pipeline was damaged by a private contractor performing work in the right-of-way of North Lake Blvd.	Not applicable. The pipeline was damaged by a private contractor performing work in the right-of-way of North Lake Blvd.	07/26/2024 17:00	The pipeline was damaged by a private contractor performing work in the right-of-way of North Lake Blvd.	Y	The incident is being investigated to determine the events leading up to the pipeline being damaged including the responsible party and the value of the damage.	12/30/2024 17:00	Lake Tahoe	Lake		Lake Tahoe. Adjacent to Carnelian Bay, CA.	None.	Public Closure		Placer County	13	N	Y	Sample location maps attached.	Samples were collected for total coliform, fecal coliform, E. Coli and ammonia.									The incident is being investigated to determine the events leading up to the pipeline being damaged including the responsible party and the value of the damage.	
3	3SSO10320	Active	San Luis Obispo CS	San Luis Obispo City	895787	1.3	Certified	Ryan Beech	WWC Supervisor 	24-JUL-24	30-JUL-24	30-JUL-24	Category 1 Spill	2015 Monterey St 	07/23/2024 10:24	07/23/2024 10:35	07/23/2024 09:52	07/23/2024 12:06	24-4179		The spill occurred from a privately owned clean-out in a grassy area surrounded by rocks. 	35.29042	-120.64824	Lateral Clean Out (Private)	N/A	Only spilled from one point.	911	A spill occurred from a private clean-out in a grassy area, running down the grass and rocks, onto the soil and concrete walkway, continuing across the concrete and into the creek.	N	N/A	0	0	The spill was discharged onto the land, flowed across a concrete walkway, passed under a fence, and went down the bank into San Luis Creek.	906	5	Paved Surface; Surface Water; Unpaved Surface	N/A	Spill occurred from private cleanout in lawn area. Spill ran down to rocks and unpaved area, then flowing across concrete sidewalk, flowing under fence and into creek down the bank. GPS 35.290428, -120.648256 was the original spill point. The spill flowed about 1 foot wide down to 35.290259, -120.648200	Y	35.29042	-120.64825	35.29032	-120.64823					07/23/2024 10:43	The spill volume was determined by using the amount of up stream connections. This math was done using flow study data that established a diurnal curve flow pattern of 150 gallons a day per household. 	After interviewing the caller it was assumed that the spill started at 9:52 am they called at 10:20 am to the utilities department. They assumed it had been spilling for no more than 30 minutes when they called leading me to the high side of that assumption at 9:52 am	Debris from Lateral; Root Intrusion	N/A	Lower Lateral	Lower lateral is privately owned but spilled due to blockage in mainline. 	Other (specify below)	high density polyethylene (HDPE)	11	The spill impacted the grass, rocks, and soil are around clean out. It flowed down these areas and also affected San Luis creek. 	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	We cleaned up solids, and disinfected entirety of the accessible area with a 10% bleach water solution. We placed absorbent sand bags and barrier dams to try and divert flow away from creek and into soil area.  	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below)	We are working with the property owner to better coordinate the cleaning of their private system with the cleaning of publicly-owned sewer mains. We plan to issue a Notice of Violation (NOV) and require the property owner to replace the faulty section of the sewer lateral.	Working with property owners to better identify their issues within their system.	We have completed the lowering of Smartcover alarm levels and are working on the issuance of a Notice of Violation (NOV). 	07/23/2024 14:00	We spoke with the maintenance staff of the private property and determined that they had been cleaning their private system earlier in the morning. The city's Environmental Programs section reached out and also gained confirmation of this. The hydro cleaner truck crew that broke the blockage confirmed many roots in the line at footage just downstream of the private lateral connection point. The mainline is fused welded pipe that does not allow roots to grow into the main. 	Y	We are investigating the owners cleaning schedules and will have them update them as well as us when they clean to ensure we can clear any blockages they may push into our system. 	08/15/2024 09:30	San Luis Creek 	Stream/Creek	N/A	San Luis Creek flows year round through the city of San Luis Obispo. 	No impacts to aquatic life were observed. 	Other (specify below)	There were no public access impacts found. 	N/A	0	N	N	N/A	N/A									We are investigating the owners cleaning schedules and will have them update them as well as us when they clean to ensure we can clear any blockages they may push into our system. 	
4	4SSO10388	Active	Glendale City CS	Glendale City	895792	1.2	Certified	Gary Harris	Wastewater Maintenance Superintendent	24-JUL-24	31-JUL-24	31-JUL-24	Category 1 Spill	1600 Ridgeview Dr.	07/20/2024 10:07	07/20/2024 10:26	07/20/2024 09:25	07/20/2024 12:10	24-4143		Spill occurred at  manhole #070225.	34.17041	-118.251	Manhole			3920	Spill occurred at manhole #070225 located in front of 1600 Ridgeview Dr. The spill followed the gutter line to two (2) catch basins, one (1) on the north side of the street, the other on the south. Extent of spill approximately 800 feet, measured from overflowing manhole to catch basin on south side located by cross street Campbell St.  	Y	Spill entered two (2) catch basins ID'ed by Los Angeles Storm Drain System website as ID 1743108 located on the north side of street and ID 1743107 located on the south. These catch basins drain into a 24 inch Reinforced Concrete Pipe (RCP.	0	2600	Drainage conveyance system leads to LA River.	2600	1320	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		Spill entered two (2) catch basins ID'ed by Los Angeles Storm Drain System website as ID 1743108 located on the north side of street and ID 1743107 located on the south. These catch basins drain into a 24 inch Reinforced Concrete Pipe (RCP. This drainage conveyance system discharges into the Verdugo Wash which empties into the LA River.	Y	34.15268	-118.27891							07/20/2024 11:03	Volume estimate calculations based on captured pictures and video of overflow (spill) during event compared to SSCSC (Southern Section Collection Systems Committee) Manhole Overflow Gauge.	(Spill start time) Yard Attendant received call from Glendale Police Department reporting a resident observed overflowing sewer manhole at 9:35am. Called Police dispatch to further investigate start time, no name or number was recorded on report. Being that no actual start time is known, event start time calculated 10 minutes before call received, start time 9:25am. (Spill end time) observed surge at downstream manhole at 11:03am, upstream manhole no longer overflowing.	Debris-wipes/Non-disposables; Pipe Structural Problem/Failure - Controls; Root Intrusion		Gravity Mainline		Vitrified Clay		69	Sanitary sewage on street, curb, gutter, portion of spill lost to drainage conveyance system. No private property damage.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Upon arrival to scene, standby lead observed and took the opportunity to divert spill in gutter line into nearby sewer manhole, see pic in attachments. This effort is calculated to have diverted 1,320 gallons back into sewer system. Flow was restored, heavy roots and wipes removed from mainline. Street, curb and gutter sanitized using bleach and water, clean-up water vacuum recovered using Combination Truck.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		Segment of sewer mainline cleaning frequency will be adjusted from every six (6) months to every four (4) months. CCTV post spill inspection found defects (cracks) with root intrusion, this has been communicated to City's Engineering Section for evaluation for repair.	Frequency adjustment (immediately) Evaluation for repair by Engineering (communicated)	07/20/2024 13:15	CCTV post spill inspection found defects (cracks) with root intrusion. Footage from report matched area in which operator hit and broke stoppage.	N			L.A. River	River; Wash		Verdugo Wash (concrete structure carrying spill to LA River) LA River (Los Angeles watershed system)	Not observed.	Other (specify below)	Posted Sewage Clean-Up in progress signs in affected areas adjacent to spill location.	City of Long Beach Health Department	0	N	N												
5S	5SSO10895	Active	City Of Jackson CS	Jackson City	895803	1.1	Certified	Bree Wilder	PW superintendent 		31-JUL-24	31-JUL-24	Monthly Category 3 Spill	Allen Street SSO	07/13/2024 07:58	07/13/2024 08:05	07/12/2024 17:30				Allen Street.  On West side of Allen Street at cleanout directly behind 116 Wallace	38.34621	-120.77393	Lateral Clean Out (Private)			283	Spill appeared at a private lateral cleanout on the west side of Allen St. and flowed down the edge of the pavement North for 15 feet where it dissipated.  The road edge which absorbed the sewage consists of weeds and soil.	N						283	Paved Surface; Unpaved Surface		Spill appeared at a private lateral cleanout on the west side of Allen St. and flowed down the edge of the pavement North for 15 feet where it dissipated.  The road edge which absorbed the sewage consists of weeds and soil.	N									07/13/2024 09:40	Counting Upstream connections and utilizing actual use data	Interviewed Residents in the neighborhood to determine start time based on their observations.  Utilized Actual Winter Average use of the five (5) upstream lateral connections and a 75% blockage. (25% subtracted from overflow due to it passing through the system unabated.	Debris-wipes/Non-disposables; Root Intrusion		Gravity Mainline		Other (specify below)	Asbestos Cement Pipe	70	Blockage caused sewage and minor paper debris to spill out of a private cleanout and travelled approximately 15' along a shoulder consisting of dirt and weeds.  Most of the sewage absorbed into the ground at this location.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow		Absorbent pads used immediately upon arrival to absorb sewage flow.  Main line was cleared using standard rodding techniques to restore flow and remove blockage.  Vacuum truck utilized to recover remaining sewage in its entirety by removing saturated dirt/ weeds and debris.  Site was washed and sanitized prior to departure.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Adding location to Quarterly SSMP Hotspot maintenance program.		07/13/2024 11:52	Cause of spill attributed to disposable wipe clog and root intrusion.  Some thought given to possible private clog pushed into main at 58 Wallace four days earlier when private contractor cleared the private line and may have added to the mainline failure.  Quarterly CCTV investigation should give a better understanding to the cause based on root growth at intrusion point.		CCTV and possible cleaning during next Quarterly SSMP Hotspot maintenance program in Aug/Sept. 2024	09/16/2024 12:00														N/A	N/A	Adding location to Quarterly SSMP Hotspot maintenance program.	To be determined.	Inspected	To be determined	N/A	N/A	CCTV and possible cleaning during next Quarterly SSMP Hotspot maintenance program in Aug/Sept. 2024	
5F	5SSO11202	Active	City of Fresno CS	County of Fresno	895808	1.3	Certified	Arturo Alvarez	Wastewater Manager, Certified	24-JUL-24	03-AUG-24	03-AUG-24	Category 2 Spill	10610 N. Bunkerhill Dr.	07/19/2024 08:38	07/19/2024 09:37	07/18/2024 22:02		-		Spill appearance points: MH #s 0559-46, 0559-45, 0559-42, 0559-41, 0559-40, 0559-19, 0559-16, 0559-25 (see map in Attachments).	36.89124	-119.76405	Manhole	n/a	n/a	9370	Street/curb & gutter; paved surface; 9 Fresno Metropolitan Flood Control District (FMFCD) MHs; 5 FMFCD drain inlets (DI)	Y	9 FMFCD MHs; 5 FMFCD DIs	9355	0			9370	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)	n/a	The affected spill area includes street/curb & gutter around MHs 0559-46, 0559-45, 0559-42, 0559-41, 0559-40, 0559-19, 0559-16, and 0559-25; FMFCD infrastructure from DI #4 to DI #3 on N. Millbrook Ave.; and FMFCD infrastructure from DI #1 to MH #5 on N. Ponderosa Dr. (see map in Attachments).	Y	36.89131	-119.7649	36.8912	-119.76535	36.89124	-119.76405	36.88977	-119.76518	07/19/2024 09:45	Estimated spill volume calculated using latest hydraulic model (see Attachment).	Estimated spill start time based on private CCTV footage offered by resident at 10618 N. Bunkerhill Dr.; footage from 07-18-24 at 21:50 does not show spill, while footage at 22:02 shows spill at 0559-45. (see Attachment) Spill end time based on time MH 0559-42 was contained via vacuum truck.	Fats, Oil and Grease (FOG); Pump Station Failure - Controls	n/a	Gravity Mainline; Pump Station - Controls	n/a	Polyvinyl Chloride (PVC)	n/a	19	9 FMFCD MHs and 5 FMFCD DIs were affected by this spill event; these FMFCD assets and the lines connecting them were cleaned as part of spill response activities. The affected street/curb & gutter areas were cleaned and sanitized. There is no known lasting impact due to this spill event. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	FMFCD notified of spill and spill response activities.	Collection System Maintenance (CSM) received four service requests on 07-19-24 beginning at 08:38. CSM operator called the first reporting party at 08:49 to get more information, and immediately began calling additional CSM staff to respond to the area; the operator arrived on-site at 09:37 and confirmed the SSO at MHs 0559-46, 0559-45, 0559-42, 0559-41, 0559-40, 0559-19, 0559-16, and 0559-25.  FMFCD DIs were protected with sandbags at 10:10. A rotating team of vacuum trucks stopped the spill at 0559-42 at 09:45 and maintained this protection until the blockage was broken at 13:10, with 3 trucks decanting a total of 18 tanks.  The affected spill areas were documented, cleaned, and sanitized. Affected FMFCD infrastructure was flushed from DI #4 to DI #3 on N. Millbrook Ave. and from DI #1 to FMFCD MH #5 on N. Ponderosa Dr.	Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Repaired Facilities or Replaced Defect	FOG informational door-hangers to be distributed to homes in the affected area.	Faulty pressure transducer to be repaired or replaced. Pump station set points will be adjusted to minimize the time the sewer system will be in a surcharged state. Future requests to vacuum out the pump station will include flushing the two mainlines immediately upstream.	Pressure transducer repair or replacement pending; then pump station set points will be adjusted accordingly.	07/19/2024 17:07	CSM staff surveyed and documented the affected area (see map in Attachments). The cause of the spill was determined to be a combination of excess grease in mainlines 0560-67-0560-66, 0560-66-0460-124, and 0460-124-wet well causing a prolonged surcharge in the sewer system; and a control failure at the pump station in which a faulty pressure transducer and thus miscalibrated set points caused a prolonged surcharge in the sewer system.	N	n/a											N												n/a	
5F	5SSO11202	Historical	City of Fresno CS	County of Fresno	895808	1.3	Certified	Arturo Alvarez	Wastewater Manager, Certified	24-JUL-24	03-AUG-24	03-AUG-24	Category 2 Spill	10610 N. Bunkerhill Dr.	07/19/2024 08:38	07/19/2024 09:37	07/18/2024 22:02		-		Spill appearance points: MH #s 0559-46, 0559-45, 0559-42, 0559-41, 0559-40, 0559-19, 0559-16, 0559-25 (see map in Attachments).	36.89124	-119.76405	Manhole	n/a	n/a	9370	Street/curb & gutter; paved surface; 9 Fresno Metropolitan Flood Control District (FMFCD) MHs; 5 FMFCD drain inlets (DI)	Y	9 FMFCD MHs; 5 FMFCD DIs	9355	0			9370	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)	n/a	The affected spill area includes street/curb & gutter around MHs 0559-46, 0559-45, 0559-42, 0559-41, 0559-40, 0559-19, 0559-16, and 0559-25; FMFCD infrastructure from DI #4 to DI #3 on N. Millbrook Ave.; and FMFCD infrastructure from DI #1 to MH #5 on N. Ponderosa Dr. (see map in Attachments).	Y	36.89131	-119.7649	36.8912	-119.76535	36.89124	-119.76405	36.88977	-119.76518	07/19/2024 09:45	Estimated spill volume calculated using latest hydraulic model (see Attachment).	Estimated spill start time based on private CCTV footage offered by resident at 10618 N. Bunkerhill Dr.; footage from 07-18-24 at 21:50 does not show spill, while footage at 22:02 shows spill at 0559-45. (see Attachment) Spill end time based on time MH 0559-42 was contained via vacuum truck.	Fats, Oil and Grease (FOG); Pump Station Failure - Controls	n/a	Gravity Mainline; Pump Station - Controls	n/a	Polyvinyl Chloride (PVC)	n/a	19	9 FMFCD MHs and 5 FMFCD DIs were affected by this spill event; these FMFCD assets and the lines connecting them were cleaned as part of spill response activities. The affected street/curb & gutter areas were cleaned and sanitized. There is no known lasting impact due to this spill event. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	FMFCD notified of spill and spill response activities.	Collection System Maintenance (CSM) received four service requests on 07-19-24 beginning at 08:38. CSM operator called the first reporting party at 08:49 to get more information, and immediately began calling additional CSM staff to respond to the area; the operator arrived on-site at 09:37 and confirmed the SSO at MHs 0559-46, 0559-45, 0559-42, 0559-41, 0559-40, 0559-19, 0559-16, and 0559-25.  FMFCD DIs were protected with sandbags at 10:10. A rotating team of vacuum trucks stopped the spill at 0559-42 at 09:45 and maintained this protection until the blockage was broken at 13:10, with 3 trucks decanting a total of 18 tanks.  The affected spill areas were documented, cleaned, and sanitized. Affected FMFCD infrastructure was flushed from DI #4 to DI #3 on N. Millbrook Ave. and from DI #1 to FMFCD MH #5 on N. Ponderosa Dr.	Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Repaired Facilities or Replaced Defect	FOG informational door-hangers to be distributed to homes in the affected area.	Faulty pressure transducer to be repaired or replaced. Pump station set points will be adjusted to minimize the time the sewer system will be in a surcharged state. Future requests to vacuum out the pump station will include flushing the two mainlines immediately upstream.	Pressure transducer repair or replacement pending; then pump station set points will be adjusted accordingly.	07/19/2024 17:07	CSM staff surveyed and documented the affected area (see map in Attachments). The cause of the spill was determined to be a combination of excess grease in mainlines 0560-67-0560-66, 0560-66-0460-124, and 0460-124-wet well causing a prolonged surcharge in the sewer system; and a control failure at the pump station in which a faulty pressure transducer and thus miscalibrated set points caused a prolonged surcharge in the sewer system.	N	n/a											N												n/a	
2	2SSO10156	Active	Milpitas City CS	Milpitas City	895809	1.2	Certified	Elaine Marshall	Deputy Public Works Director 	25-JUL-24	25-JUL-24	25-JUL-24	Category 2 Spill	Strawberry Lane	07/22/2024 11:32	07/22/2024 12:00	07/22/2024 11:32	07/23/2024 09:47	24-4173		Spill from City manhole # 11179 with report of water leaking from manhole lid.  Manhole located by 116 Strawberry Lane, Milpitas. 	37.439141	-121.876615	Manhole		None	1440	spill flowed into street gutter and entered storm drain approx. 60-70ft from manhole. 	Y	Spill entered storm conveyance system at inlet #300050, located on the east side of the property. Spill flowed through storm line and staff traced flow in storm system to Kennedy and Fanyon. All spill was contained within conveyance system and did not reach discharge point at receiving water.  Staff used hydro to clean storm mains and street gutter and recovered 100% of spill and water used for cleaning. 	1440	0			1440	Drainage Conveyance System		Spill was fully contained within storm conveyance system. Staff traced the spill within the system to manhole located by Kennedy and Fanyon Drs. 	Y	37.442674	-121.882581							07/22/2024 12:44	spill volume estimated based on visual observation of flow rate from manhole lid estimated to be 20 gpm with flow duration of 72 min. (20 x 72 = 1440 gallons) 	Spill start time: 11:32 Spill stop time: 12:44 (blockage broken and flow in sanitary restored)  Spill duration: 72 mins. 	Damage by Others Not Related to Collection System Construction/Maintenance; Debris-General; Debris-Rags; Debris-wipes/Non-disposables; Other (specify below)	twigs deposited through manhole lid or other entry point	Gravity Mainline; Manhole		Vitrified Clay		60	minimal impact as spill was fully contained within storm drain conveyance system and spill did not reach receiving water	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		staff responded and investigated cause of spill and began cleanup including full recovery of spill and all wash water used. 	Other (specify below)	upstream manholes are on regular inspection and flushing PW program 	upstream manholes are on regular inspection and flushing PW program 	upstream manholes are on regular inspection and flushing PW program 	07/22/2024 14:00	spill caused by blockage resulting from wipes, rags, and twigs deposited into system 	N												N													
5S	5SSO10938	Active	Easterly CS	Vacaville City DPW	895816	1.3	Certified	Justen Cole	Director Of Utilities		31-JUL-24	31-JUL-24	Monthly Category 3 Spill	791 Markham Ave.	06/30/2024 10:15	06/30/2024 10:35	06/30/2024 09:14				The appearance point manhole is SSMH3197. Pictures and video supplied include flushing and vacuuming Storm Drain, clearing plugged SSMH, extent of spill.  	38.36087	-121.98105	Manhole			995	Pictures and mpeg show the extent of spill and the flushing and cleaning of storm drain inlet.	Y	A GIS map is included in the attachments. A picture is included showing staff cleaning the spill entry to the storm drain inlet.	995				995	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Spill entered storm drain at SDIN6408	Y	38.35917	-121.98185	38.35901	-121.98134					06/30/2024 13:00	Area/Volume method and volume contained in partially filled pipe.	Time of call and dispatched, volume of spill, and approximate flow rate.	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		40	Wet asphalt therefore vehicles tracked liquid to the area captured in the dimensions for volume calculations. Spill made it to storm drain system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		captured ALL spill.	Inspected Sewer Using CCTV to Determine Cause		Flushed and cleaned sewer main.		06/30/2024 13:00	The spill was caused by wipes/debris. After clearing the plugged SSMH with hydro-flusher, a CCTV inspection was completed yielding no pipe issues except for the accumulation of Wipes/Debris and FOG. WQ staff will provide compliance materials to stores and restaurants.		Engineering staff continues to confirm information and check volumes.	08/19/2024 17:00														None	WQ staff will visit commercial strip and provide FOG & Wipes handouts.	None	None	Inspected assets.	None	None	Staff will be reminded to take additional pictures showing clean-up activities and pictures of flushed and cleaned storm drain manholes. 	Engineering staff continues to confirm information and check volumes.	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	895821	1.1	Certified	David Leamer	Assistant Superintendent		29-JUL-24	29-JUL-24	Monthly Category 3 Spill	345369	06/26/2024 12:15	06/26/2024 12:48	06/25/2024 18:00				See Attached Spill map with Photos.	38.49213	-121.45785	Lateral Clean Out (Private); Lateral Clean Out (Public)		District and Private Cleanouts	119	See Attached Spill Map with Photos	Y	See Attached Spill Map with Photos	93				102	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		See attached Spill Map with Photos.	Y	38.49193	-121.45801	38.48953	-121.45977					06/26/2024 12:48	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Vandalism (specify below)	Sand dumped into manhole	Gravity Mainline		Vitrified Clay		49	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Mitigated effects of spill, contained all or portion of spill, cleaned up, restored flow, returned portion of spill to sanitary sewer system.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected mainline with CCTV on 6/27/24. Based on findings, SacSewer added a preventative cleaning frequency of 36 months.		06/26/2024 16:45	A private cleanout overflowed to a paved surface and flowed to a storm drain inlet at 7298 Franklin Blvd, entering the storm drain system. Additionally, sewage spilled from a SacSewer cleanout but was contained to a paved surface. M&O cleaned all above-ground surfaces in contact with the spill and hydro-vacuum the affected storm drain system from the SD inlet to the SDMH at 7384 Mandy Drive. The recovered sewage and rinse water were returned to the sewer system.		None	06/26/2024 16:45														N/A	SacSewer added a preventive cleaning frequency to 36 months.	SacSewer added a preventive cleaning frequency to 36 months.	N/A	SacSewer inspected mainline with CCTV on 6/27/24.	N/A	SacSewer added onto a preventive maintenance schedule on 7/13/24	N/A	None	
2	2SSO10187	Active	Santa Clara City CS	Santa Clara City	895834	1.4	Certified	Garrett M Brown	Superintendent	26-JUL-24	02-AUG-24	02-AUG-24	Category 2 Spill	Rabello Pump Station Service road	07/25/2024 08:45	07/25/2024 08:45	07/25/2024 08:45	07/25/2024 11:08	24-4230		Contractor Failed to close 24  Gate valve at the San Jose Regional Wastewater Facility (RWF) causing a 36  force main to fill back up and cause an overflow where City of Santa Clara Staff was working on an open valve. The Overflow started at 0845 and stopped at 0915.   The spill impacted the asphalt service road and soil in nearby landscape.   No waterways were impacted. Santa Clara city personnel were on site to clean-up. The clean-up effort was completed with a vacuum truck (Vaccon) to vacuum up the sewage	37.4166	-121.9712	Force Main			5000	Pictures and video is attached showing the extent of the spill. The spill impacted the asphalt road and the nearby landscape and soil area within the city owned parcel.	N						5000	Paved Surface; Unpaved Surface		paved access road and dirt shoulder/ditch of paved access road	Y	37.41675	-121.97106							07/25/2024 09:15	Using area calculations and SSCSC overflow gauge.	Was found on routine site inspection in the morning of 7/25/24 at 0845.	Operator Error (specify below); Other (specify below)	Work is being performed at the Regional Wastewater Plant.  Contractor or Plant worker left valve open (at RWWTP) and this allowed a 'backflow' of sewage into the forced main that was being dewatered for inspection/repairs.   	Air Relief Valve (ARV)/ Blow-Off Valve (BOV)		Other (specify below)	SS knive valve. 	1	Wet roadway.  No other impact to surroundings.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned All Spill to Sanitary Sewer System; Returned Portion of Spill to Sanitary Sewer System		Crew arrived on site with Vac-Con, brooms, shovels and cleaned up the area with Vac-Con	Other (specify below)	Contacted RRWTP and their contractor and informed them to check their valves.  	We believe this was accidental error on Contractors part.  Advised they double check all their pipes and valves before leaving RWWTP each day to prevent re-occurrence. 	N/A	07/25/2024 11:27	Cause determined to be open valve that allowed back-feed of sewage into the forced main that was out of service.  Valve was left open by Contractor for RWWTP and was not under our control. 	N												N													
8	8SSO10569	Active	East Valley Water District CS	East Valley Water District	895266	2.2	Certified	Patrick Milroy	Operations Manager		27-JUL-24	27-JUL-24	Category 1 Spill	Sterling Natural Resource Center	06/13/2024 17:30	06/13/2024 17:35	06/13/2024 17:30	06/13/2024 23:00	24-3394	27-JUL-24	Wastewater Treatment plant lost power causing plant failure and  back up.  34.113948, -117.252497	34.113948	117.252497	Manhole	None	None	810000		Y	Storm drain catch basin in street	0	810000		810000	0	Drainage Conveyance System that discharges to surface water		Power fail at wastewater treatment plant caused manhole back up.  34.113948, -117.252497	Y	34.113948	117.252497							06/13/2024 23:00	Estimate 5000 gallons per minute for 6 hours for a total of 1,800,000 Subtract 990, 000 captured in emergency basin	Calls and visual. 	Pump Station Failure - Power		Pump Station - Power		Other (specify below)	No pipe failure	1	wastewater manhole overflowed into storm drain catch basin	N	Restored Flow		Clean up on asphalt, curb and gutter occurred, but not able to clean out storm drains just flushed clean water. 	Other (specify below)	Power restored	Power was restored, back up generator is being diagnosed. 	Underway soon as possible. 	06/13/2024 23:00	Power fail at wastewater treatment plant	N		06/14/2024 23:00	Storm drain leads to Wash	Wash		Storm drain catch basin leads to wash. 	None	Public Closure		Flood Control	0	N	N												
5S	5SSO10949	Active	Forest Meadows CS	Calaveras Cnty Water District	895843	1.1	Certified	Damon Wyckoff	Director Of Operations		28-JUL-24	28-JUL-24	Monthly Category 3 Spill	649 Sugarbush - Forest Meadows	07/28/2024 09:00	07/28/2024 09:30	07/25/2024 09:00				Manhole blockage on a CCWD easement. Reported 0900, 7-28-2024. Upon staff arrival at 0930, neighbor stated the odor was noticeable since Thursday (7-25-2024) morning, presume the partial blockage occurred then. Sewer weeping out of the top of the manhole at the rate of 2 gal/hour. The manhole is in a swale, the sewage was contained onsite and CCWD COllections Crew members were able to clean with a pumper truck, 5% bleach, and a vacuum truck. 	38.165797	-120.409495	Manhole			144	The spill was contained in a swale at the manhole. 	N						130	Unpaved Surface		the destination is at the same site as the manhole. See the attached pics. the sewage weeped out of the top of the manhole and settled onsite.	Y	38.165797	-120.409495							07/28/2024 11:30	The rate of spill was estimated via visual observation from trained staff. Staff used the date and time sewer odors were noticed from the neighbors to calculate the duration. the result is 3 days at 2 gallons per hour, which equals 144 gallons	Information from the neighbors as to start time , and staff acknowledgment of the time it was stopped.	Debris-General; Debris-wipes/Non-disposables; Root Intrusion		Manhole		Polyvinyl Chloride (PVC)		40	Sewage was contained onsite, on a CCWD sewer line easement,  limited access for the public in a rural, gated community. Overall, impact is minimal.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Staff arrived and diagnosed the issue visually. They then backed a pumper truck down the easement and sucked out the manhole, stopping the spill. Staff then cleared the partial blockage with a hydro unit on the vac truck	Adjusted Schedule/Method of Preventive Maintenance		Staff will increase the frequency of inspection at this manhole to ensure its continued effective flow.		07/28/2024 12:00	The spill was caused by debris and non-disposables partially plugging the manhole.		None	07/28/2024 12:19														N/A	Need to increase the frequency of public informational flyers to this subdivision about what is and is not acceptable to flush down the toilet.	yes	No	No	No	Via work order	no change	None	
6A	6SSO11113	Active	So. Tahoe Public Utility Dist. CS	South Tahoe PUD	895844	1.2	Certified	Richard Jones	Underground sewer supervisor 	30-JUL-24	30-JUL-24	30-JUL-24	Category 1 Spill	544 Fallen Leaf Lake RD	07/28/2024 01:01	07/28/2024 01:07	07/28/2024 01:01	07/28/2024 01:13	-	30-JUL-24	This spill took place at 544 Fallen Leaf Lake Rd. This was caused by a broken valve in a pump station wet well nearest to the manhole that spilled. The wet well would fill up and on one occasion the sewerage breached the overflow pipe in the wet well which in turn goes back into the gravity main, which caused a spill.	38.8822345	-120.0611749	Manhole			50	Approximately 50 gallons spilled from the manhole ran down the road a few feet crossed the road and down some rock steps to and residents dock and about 5 gallons into the lake. 	N				Approximately 50 gallons spilled from the manhole ran down the road a few feet crossed the road and down some rock steps to and residents dock and about 5 gallons into the lake. 	5	45	Paved Surface; Surface Water; Unpaved Surface		Approximately 50 gallons spilled from the manhole ran down the road a few feet crossed the road and down some rock steps to and residents dock and about 5 gallons into the lake. 	Y	38.8822345	-120.0611749							07/28/2024 00:09	Estimated by eye site. by judging how much is in a 5 gallon bucket if it were to dumped out on the ground.  	the pump station operator was on site and watched it with his eyes. The wet well was rising and he called in for a vac truck and while he was waiting the wet well reached it's over flow pipe and the sewerage reverted back to the gravity main were then the pump station operator watched it procced out the manhole for a few seconds. 	Pump Station Failure - Mechanical		Manhole		Concrete		65	Sewer came out of the manhole and down the road across the road down some private rock steps and ending on the private dock over the lake.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Vac truck to suck down the wet well. Replaced broken valve in wet well. washed down road and rock steps with vactor truck sucking at the bottom collecting everything we washed down. and sprinkled a little granular chlorine, to disinfect. Place signs to notify and called had the lab come to the site to do testing in the lake.    	Other (specify below); Repaired Facilities or Replaced Defect	We Replaced valve in wet well immediately 	We replaced the broken valve. 	The lab have been taking samples since the report of the spill. The numbers are very low. no beaches were closed. Signs were posted at the time of clean up and removed today 7/30 12:00pm due to even lower numbers from the labs testing.	07/28/2024 06:00	It was a Broken Valve on pump #2, which was allowing the force main to back feed into the station when other stations were pumping.	N			Fallen Leaf Lake 	Lake		Fallen Leaf Lake, CA 	No aquatic life was harmed, the numbers from the lab were too low.	Other (specify below)	Private stairwell to private dock	No closers' 	0	N	Y	Please see Attached	Please see Attached										
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	895848	1.2	Certified	Gerald Watson	Sanitation Wastewater Manager III		08-OCT-24	08-OCT-24	Monthly Category 3 Spill	8127 South Tuscany Avenue	07/26/2024 08:54	07/26/2024 09:32	07/26/2024 08:54				Sewer Maintenance Hole Overflowing	33.961778	-118.441443	Manhole	None	None	114	Spill Related Documents.	N	None	0				0	Unpaved Surface		The entire back up amount soaked into the ground.	Y	33.961778	-118.441443							07/26/2024 09:50	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.	SPILL FLOWRATE AND VOLUME DETERMINATION BASED ON FLOWOUT PICKHOLE OR OPENING  DIAMETER OF PICKHOLE OR OPENING 0.75INCHES HEIGHT OF WATER OUT OF PICKHOLE/OPENING 1INCHES FLOWRATE PER PICKOLE/OPENING (GPM) 2GPM # OF PICKHOLES/OPENINGS 1 TOTAL FLOWRATE (GPM) 2GPM DURATION OF SPILL (MINUTES) 56MINUTES TOTAL FLOW (GALLONS) 114GALLONS	Debris-General		Gravity Mainline		Vitrified Clay		67	It was estimated that approximately 114 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.	N	Cleaned Up (specify below); Restored Flow		The crew removed the blockage and the backup ceased at 9:50 AM. All necessary clean-up was then performed.	Inspected Sewer Using CCTV to Determine Cause		A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage, caused by a private contractor working on a private property house connection. The cause of the blockage in the sewer line was attributed to debris accumulation. The crew removed the blockage and the backup ceased at 9:50 AM. All necessary clean-up was then performed.  		07/26/2024 09:50	On Friday, July 26, 2024, at 8:54 AM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 8127 South Tuscany Avenue (TG 702-B3). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage, caused by a private contractor working on a private property house connection. The cause of the blockage in the sewer line was attributed to debris accumulation. The crew removed the blockage and the backup ceased at 9:50 AM. All necessary clean-up was then performed.  It was estimated that approximately 114 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground. 		Not At This Time.	07/26/2024 09:50														None at this time.	None At This Time.		None at this time.	The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	None at this time.	None at this time.	None at this time.	Not At This Time.	
8	8SSO11418	Active	Hemet City CS	Hemet City	895853	1.3	Certified	Travis Holyoak	Water Wastewater Superintendent 	30-JUL-24	08-AUG-24	08-AUG-24	Category 2 Spill	CASA DEL SOL NORTH/WEST CORNER-ALLEY	07/27/2024 14:30	07/27/2024 14:45	07/27/2024 14:30	07/29/2024 08:00	24-4296		Latitude 33.74561, Long -117.00214.  Manhole is located  behind 2887 W. Florida Ave. in Hemet Ca.	33.74561	-117.00214	Gravity Mainline; Manhole			25200	From the manhole located at Latitude 33.74561 Longitude -117.00214, spill traveled down curb line to the west behind shopping center and enter storm drain catch basin.  traveled south in Riverside County's Strom drain and went west in Riverside County Flood Channel located at Wentworth and Sanderson approx.2660 ft.  Total length of spill is 8000 L.F.	Y	Riverside County Flood Control Storm Drain System.  Entered Storm Drain Catch Box at Latitude 33.4442 Longitude -1170023 .  Spill stopped at Latitude 33.4353 Longitude -117.0053 in Flood Control Channel.  Clean up of Flood Control channel was in coordination with Riverside County Flood Control and Water Conservation District.	25200	25200			25200	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		From the manhole located at Latitude 33.74561 Longitude -117.00214, spill traveled down curb line to the west behind shopping center and enter storm drain catch basin.  Traveled south in Riverside County's Strom drain and went west in Riverside County Flood Channel located at Wentworth and Sanderson approx.2660 ft.  Total length of spill is 8000 L.F.	Y	33.74561	-117.00214							07/29/2024 08:25	utilizing the SSCSC Manhole overflow gauge and calculating time of spill.	SSCSC Manhole Overflow Gauge	Debris-General; Vandalism (specify below)	Debris was dumped in manhole from Transient encampment	Gravity Mainline; Manhole		Vitrified Clay		40	From location of spill, flowed west towards Sanderson Ave. entered Catch Box traveled South approx. 3811ft in 72  Concrete sub grade Riverside County Flood Control Storm Drain then entered Riverside County Flood Control Channel going West an additional approx. 2660 ft in Channel.	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Once blockage was cleared, cleanup of spill path was initiated.  The spill that entered the Riverside County Flood Control channel and Storm Drain was cleaned up from farthest point and worked way back to the source of spill.  Utilized Water tanker to flush spill and collect, using two Vactor trucks, and a water tender,  estimated  30,000 gallons collected and returned to the Sewer System.  Clean up of Flood Control channel was in coordination with Riverside County Flood Control and Water Conservation District. City Task #166210	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below)	Monitor the area for transients and eliminate vegetation to make area more visible.  Notify Property Owners/Management to eliminate transient activity and clear vegetation.	Secure manhole lid by methods of welding to prevent any unauthorized from future access.  Contact Property owners/Managers while working with Code Enforcement.	7/29/2024 at 7:30am- stopped flow in channel, cleared blockage and started cleanup.  7/29/2024-19:00. Completed Clean up	07/29/2024 19:00	Upon relieving of blockage, it was found that a tarp and vinyl flooring, fabric and clothing, was put into the manhole.  Transients have been gathering in the area and debris from encampment was placed into sewer manhole.	Y	working on ways to prevent manhole from being accessed by non-authorized.	08/05/2024 12:30										N												working on ways to prevent manhole from being accessed by non-authorized.	
4	4SSO11365	Active	Unincorporated County Area CSMD South/County Sanitation District CS	Los Angeles Cnty DPW	895861	1.2	Certified	Eric Liu	Civil Engineer	30-JUL-24	07-AUG-24	07-AUG-24	Category 1 Spill	2076-0037 (5751 Pioneer Blvd., Whittier - Unincorporated County Area CSMD South)	07/27/2024 11:43	07/27/2024 12:41	07/27/2024 11:00	07/27/2024 12:07	24-4271		CSMD Map Sheet No. 2076 Manhole No. 37 MMS No. 8877871 Manhole No. 37 was overflowing.	33.99803	-118.06698	Manhole	Manhole No. 37		3000	Manhole No. 37 was overflowing onto the street. The spill entered a storm drain located at 5785 Pioneer Blvd. 	Y	The spill entered a storm drain located at 5785 Pioneer Blvd. 	0	3000	The spill entered a storm drain located at 5785 Pioneer Blvd., which leads to drain BI 1259 - U1 to San Gabriel River. 	3000	0	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Manhole No. 37 was overflowing onto the street. The spill entered a storm drain located at 5785 Pioneer Blvd., which leads to drain BI 1259 - U1 to San Gabriel River. 	Y	33.99679	-118.06786							07/27/2024 13:05	Visual or eyeball method.  	The start time is obtained from the reporting party, and the end time is determined by when the crew clears the obstruction, and the overflow stops.	Debris-Rags; Root Intrusion		Gravity Mainline		Vitrified Clay		55	N/A	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow		Upon arrival, Manhole No. 37 was found to be overflowing.  Absorbent socks were placed around the area to contain the spillage. Rodder equipment was used to break down the blockage in the mainline. Cleanup was performed, and all required agencies were notified. 	Other (specify below)	We will inspect the sewer via CCTV to determine if further action is required. 	We will inspect the sewer via CCTV to determine if further action is required. 	N/A	07/27/2024 14:01	We will inspect the sewer via CCTV to determine if further action is required. 	Y	We will inspect the sewer via CCTV to determine if further action is required. 	09/26/2024 13:44	San Gabriel River	River		San Gabriel River	No impacts. 	Other (specify below)	No impact. 	N/A	0	N	N											We will inspect the sewer via CCTV to determine if further action is required. 	
5S	5SSO10893	Active	City Of Folsom CS	Folsom City - Environmental & Water Resources Dept	895862	1.1	Certified	Marcus Yasutake	Environmental & Water Resources Director		23-AUG-24	23-AUG-24	Monthly Category 3 Spill	1005 Mormon Street Granite Mini Park	07/25/2024 10:15	07/25/2024 10:23	07/25/2024 09:00				Granite Mini Park. The spill was in the grass area and traveled down hill into the bark area of the play ground.	38.67319	-121.17907	Gravity Mainline			100	The spill stayed within the unpaved section of the park. The spill traveled down a small grass hill and reached its final destination inside the bark filled playground area.	N	n/a					0	Unpaved Surface		The spill stayed within the unpaved section of the park. The spill traveled down a small grass hill and reached its final destination inside the bark filled playground area.	Y	38.67323	-121.17918							07/25/2024 13:15	The spill volume was gained by using the eyeball estimation method as well as training and experience.	The start time was estimated based on the approximate time the Parks Dept noticed the spill. I gathered this information from speaking with the employee (Nick).  The spill end time was determined by what time the blockage was cleared, and the spill stopped as I was standing and observing the spill area.	Root Intrusion		Gravity Mainline		Vitrified Clay		30	The impact from the spill resulted in the park being closed while the cleanup was being completed as well as the repair in the defective section of mainline being repaired. 	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow	I (Chris) went to 1002 Natoma st and spoke with the resident, and left a door tag at 1000 Natoma st to inform them of the situation. 	Upon arrival I directed the Vac-truck to downstream m/h SS-B04-2-50396 to attempt to clear the mainline blockage. After several failed attempts, i had the Vac-truck repositioned to upstream m/h SS-B04-2-50394 to slow the spill down using the vacuum section of the truck . I then called in the U.M. crew to assist. Once they arrived, we used hydro excavation and hand digging to locate the mainline. At this time i also requested the Vac-truck to try and clear the blockage from the upstream m/h they were located at. Once cleared we used CCTV to determine the cause of the blockage was roots, and the spill exited the sewer system through a broken section of mainline. At this time the U.M crew would return on 7/30/24 to make the repair. The spill area was caution taped off and the cleanup process began. The contaminated bark was shoveled into the vacuum section of the truck and well as into the back of a pickup. Then, the area was sprayed with disinfectant.  0 of 100 gallons recovered.	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect		The mainline was flushed to remove as much of the roots as possible. The section of broken pipe at the spill appearance point will be repaired.		07/25/2024 14:00	As clearly stated above, the cause of the spill was roots. This was verified by using CCTV as well as knowing this section has been scheduled for a CIP.		n/a	07/25/2024 14:00														n/a	This section is a CIP and scheduled for R and R.	n/a	This section is a CIP and scheduled for R and R.	The mainline was inspected and the section of broken pipe will be scheduled to be repaired until the CIP is complete.	This is a Basin 4 CIP	n/a	n/a	n/a	
4	4SSO11447	Active	Calabasas City CS (SSO)	Calabasas City	895872	1.2	Certified	Eric Liu	Civil Engineer	30-JUL-24	08-AUG-24	08-AUG-24	Category 1 Spill	1118-0211 (3800 Poppyseed Lane, Calabasas)	07/28/2024 16:19	07/28/2024 18:20	07/28/2024 14:15	07/28/2024 22:33	24-4291		CSMD Map Sheet No. 1118 Manhole No. 211 MMS No. 8877916 Manhole No. 211 was overflowing. 	34.12906	-118.70472	Manhole	Manhole No. 211		2780	Sewage was flowing from Manhole No. 211 onto the street.  A portion of the spill entered a private storm drain located near Manhole No. 211. 	Y	A portion of the spill entered a private storm drain located near Manhole No. 211. 	0	200	A portion of the spill entered a private storm drain located near Manhole No. 211, which leads to Las Virgenes Creek. 	200	2580	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		Sewage was flowing from Manhole No. 211 onto the street.  A portion of the spill entered a private storm drain located near Manhole No. 211, which leads to Las Virgenes Creek. 	N									07/28/2024 18:40	Visual or Eyeball Method Measured Volume Method SSO flow rate calculations formula as stipulated by the SMD, LA County Public Works.	The start time is obtained from the reporting party, and the end time is determined when the crew clears the obstruction, and the overflow stops.	Debris-Rags; Vandalism (specify below)		Gravity Mainline		Other (specify below)	ABSCP	38	No impact.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Absorbent socks were placed upon arrival to prevent sewage from entering the drain. Hydro equipment was used to break down the mainline blockage. The collected portion of the spillage containment was vacuumed, recovered and returned to the sanitary sewer system. All required agencies and constituent were notified, and cleanup was performed. 	Added Sewer to Preventive Maintenance Program; Other (specify below)	Inspect and monitor the condition. Place segments on a hydro periodical cleaning frequency of 60 days.	Inspect and monitor the condition. Place segments on a hydro periodical cleaning frequency of 60 days. 	N/A	07/28/2024 23:00	Inspect and monitor the condition. Place segments on a hydro periodical cleaning frequency of 60 days. 	N			Las Virgenes Creek	Stream/Creek		Las Virgenes Creek is part of the tributary to Santa Monica mountains.	No impacts. 	Other (specify below)	No impact. 	N/A	0	N	N												
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	895876	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		08-OCT-24	08-OCT-24	Monthly Category 3 Spill	677 North Nimes Road	07/30/2024 19:15	07/30/2024 20:20	07/30/2024 20:52				Overflow Report.	34.089082	118.43953	Gravity Mainline			87	Overflow Report.	N		0				43	Other (specify below)	Private Property at 677 North Nimes Road	34.089082  -118. 439530	Y	34.089082	118.43953							07/30/2024 20:52	Volume of a spill contained in a rectangular area Length1100feet Width0.5feet Depth0.125inches0.0104feet  5.73ft343gallons Volume of a spill contained in a circular area  Volume of a spill contained in a rectangular area Length6feet Width10feet Depth0.125inches0.0104feet  0.63ft35gallons  Volume of a spill contained in a rectangular area Length5feet Width100feet Depth0.125inches0.0104feet  5.21ft339gallons 	Volume of a spill contained in a rectangular area 	Root Intrusion		Gravity Mainline		Vitrified Clay		100	It was estimated that approximately 87 gallons of sewage backed out of the sewer as a result of the blockage. 44 gallons of the backup amount entered the property at 677 North Nimes Road where it soaked into the ground. The crew was able to establish containment and 43 gallons was recovered and returned to the sewer system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	On Tuesday, July 30, 2024, at 7:15 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 677 North Nimes Road (TG 592-B6). A CWCD crew arrived at the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage, which was attributed to roots. The crew proceeded to remove the blockage and the backup ceased at 8:52 PM. All the necessary clean-up steps were performed.	On Tuesday, July 30, 2024, at 7:15 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 677 North Nimes Road (TG 592-B6). A CWCD crew arrived at the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage, which was attributed to roots. The crew proceeded to remove the blockage and the backup ceased at 8:52 PM. All the necessary clean-up steps were performed.  It was estimated that approximately 87 gallons of sewage backed out of the sewer as a result of the blockage. 44 gallons of the backup amount entered the property at 677 North Nimes Road where it soaked into the ground. The crew was able to establish containment and 43 gallons was recovered and returned to the sewer system. 	Adjusted Schedule/Method of Preventive Maintenance		Pipeline will be placed on a quarterly maintenance schedule.		07/30/2024 20:52	On Tuesday, July 30, 2024, at 7:15 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 677 North Nimes Road (TG 592-B6). A CWCD crew arrived at the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage, which was attributed to roots. The crew proceeded to remove the blockage and the backup ceased at 8:52 PM. All the necessary clean-up steps were performed.		CCTV has been scheduled.	07/30/2024 20:52														None at this time.	Pipeline will be placed on a quarterly maintenance schedule.	Pipeline will be placed on a quarterly maintenance schedule.	None At This Time.	None At This Time.	None At This Time.	None At This Time.	On Tuesday, July 30, 2024, at 7:15 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 677 North Nimes Road (TG 592-B6). A CWCD crew arrived at the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage, which was attributed to roots. The crew proceeded to remove the blockage and the backup ceased at 8:52 PM. All the necessary clean-up steps were performed.  It was estimated that approximately 87 gallons of sewage backed out of the sewer as a result of the blockage. 44 gallons of the backup amount entered the property at 677 North Nimes Road where it soaked into the ground. The crew was able to establish containment and 43 gallons was recovered and returned to the sewer system. 	CCTV has been scheduled.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	895877	1.1	Certified	Ameal McLaurin	Sewer Supervisor 2		31-JUL-24	31-JUL-24	Monthly Category 3 Spill	1801 Brentwood Road, Oakland Ca	07/21/2024 21:55	07/21/2024 22:30	07/21/2024 21:30				Manhole on easement on a hillside.	37.81397	-122.20625	Manhole			74	67 gallons soaked into the soil on an unpaved hillside, 7 gallons flowed into paved surface.	N						0	Paved Surface; Unpaved Surface		67 gallons soaked into the soil on an unpaved hillside, 7 gallons flowed into paved surface.										07/22/2024 01:30	Unpaved surface: 8'L x 6'W x1'D x 7.48-gal x .1875 = 67 gallons Paved surface: 33'L x 6'W x .01'D x 7.48-gal = 7 gallons Total spill: 67 + 7 = 74 gallons	Start time was based on eyewitness account. The end time was based on responding sewer crew restoring the flow.	Root Intrusion		Gravity Mainline		Other (specify below); Polyvinyl Chloride (PVC); Vitrified Clay	Corrugated metal pipe (CMP)	125	67 gallons soaked into the soil on an unpaved hillside, 7 gallons flowed into paved surface.	N	Restored Flow		Crew cleaned up the portion on the paved surface.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		Mainline has been adjusted to a 6-month high frequency hydro maintenance program, W.O #1451881, CCTV report #1543525 showed root intrusion to had been the potential cause of the overflow, mainline was placed on plan rehabilitation (CIP) W.O # 1206243.		07/22/2024 01:30	CCTV report #1543525 showed root intrusion to had been the potential cause of the overflow.		N/A	07/25/2024 10:10														N/A	Mainline has been adjusted to a 6-month high frequency hydro maintenance program, W.O #1451881, mainline was placed on plan rehabilitation (CIP) W.O # 1206243.	Mainline has been adjusted to a 6-month high frequency hydro maintenance program.	 Mainline was placed on plan rehabilitation (CIP) W.O # 1206243.	CCTV report #1543525 showed root intrusion to had been the potential cause of the overflow, mainline was placed on plan rehabilitation (CIP) W.O # 1206243.	Mainline was placed on plan rehabilitation (CIP) W.O # 1206243.	Mainline has been adjusted to a 6-month high frequency hydro maintenance program, W.O #1451881, CCTV report #1543525 showed root intrusion to had been the potential cause of the overflow, mainline was placed on plan rehabilitation (CIP) W.O # 1206243.	Mainline has been adjusted to a 6-month high frequency hydro maintenance program, W.O #1451881, CCTV report #1543525 showed root intrusion to had been the potential cause of the overflow, mainline was placed on plan rehabilitation (CIP) W.O # 1206243.	N/A	
2	2SSO10091	Active	American Canyon, Public Works CS	American Canyon City PWD	895880	1.2	Certified	Chris Morris	Sewer Supervisor		30-AUG-24	30-AUG-24	Monthly Category 3 Spill	5085 Main St	07/30/2024 09:13	07/30/2024 09:29	07/30/2024 09:09				The spill occurred from a single manhole located in the street behind 5085 Main Street. This was the only appearance point, the lowest elevation manhole in the system upstream from the blockage. Please note: this spill is not related to, or impacted by the previous spill (3070 Main St. ID 895705), while location is close, these two areas are not connected where blockage occurred. Both spills are unrelated with separate causes for both.	38.18113	-122.25427	Manhole			459	The spill exited a single manhole in the street, traveled 133ft down the south side gutter of the street and into a single storm drain inlet at the curb, traveled 39ft in the storm drain system, exited on to a man made drainage ditch for 36ft where the spill ended. No solids or staining were present throughout. Man made drainage ditch was dry down stream of spill. We also noticed a broken irrigation system in the same area where the spill ended in the man made drainage ditch, see pictures. Spill end location is 38.18086, -122.25467.	Y	Spill entered a single street curb storm drain inlet on the south side of the street that flows into a man made drainage ditch, the spill ended in the man made drainage ditch. The man made drainage ditch does eventually drain to surface water but that is about a mile from where the spill ended. Drainage channels were all dry downstream of the spill. We also noticed a broken irrigation system in the same area where the spill ended in the man made drainage ditch, noted in pictures.	449				459	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		The spill flowed down the south side of the street and to the gutter and into a single storm drain inlet, that flowed through and ended in a man made drainage ditch a total distance of 208 feet from the spill appearance point at the manhole. Destination location is 38.18086, -122.25467	Y	38.18086	-122.25467							07/30/2024 09:59	With the photo and video documentation we were able to calculate flow with our pick/vent hole calculation chart in our SERP. One pick hole and one vent hole were flowing, one looked 5  high, the other looked 3  high (3 =3.07GPM, 5 =6.1GPM) 9.17GPM. The total run time was calculated to be 50 minutes. 9.17GPM x50 MIN=458.5(459) gallons spilled. We also did the area volumed measured for the street and curb to determine how much made it to the storm drain system. Asphalt was 624 SQFT x .0013' depth, curb was 130 SQFT x .0026' depth. We estimated the the saturated street held 9.42(10)gallons. That gave us 449 gallons spilled into the storm drain system with 10 gallons being in the street for a total of 459 gallons spilled. The street wasn't puddle as it was on a slope, everything flowed into the storm drain except for the saturated part of the street that is calculated here.	Our PD first discovered the spill and notified dispatch at 9:13am. Our admin heard the scanner at this time and immediately called us. So far all we had was a 9:13 spill start time and no other possible information to gather and no other evidence we could find. So I calculated the spill start time by working backwards. I measured the distance the sewer traveled when we arrived, which was about 208 ft traveled. I then found a flow calculator online that converted the GPM to FPS (the two holes flowing were 2 inches total and GPM was 9.17 this is the info the website needed to calculate FPS) the website then was able to calculate 56.4 feet per minute. 208ft/56.4=3.68(4) minutes running before the spill was called in by the PD. This is just an estimate but is our best option in determining an accurate spill start time. The spill end time was documented at 9:59 as this was when the blockage was cleared and flow restored. A crew member was at the overflowing manhole to confirm this time.	Fats, Oil and Grease (FOG)		Gravity Mainline		Polyvinyl Chloride (PVC)		25	The spill started in the street and flowed to a gutter where it then entered a storm drain that then flowed into a man made drainage ditch. The total spill distance was 208 feet from manhole to end point in the drainage ditch. No solids or staining were present throughout. Everything was cleaned up and all SERP response activities were followed. No residents or business were affected and public health was not impacted. We believe there was no impact of the spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Upon arrival at 9:29am the spill was contained in a man made drainage ditch. CalOES was notified because we suspected it may be over 1000 gallons, control number is 24-4305. We started opening manholes to locate the source of the blockage. The blockage was located and our Vactor was used to clear the blockage and restore flow, this happened at 9:59am. Upon clearing the blockage we found grease to be the cause. Cleanup then began, using our Vactor the street was washed down, the storm drain system was fully cleaned out, including irrigation water from nearby leaks discovered, and man made drainage ditch was cleaned. Drainage ditch downstream of Spill destination was dry. No solids or staining was found. Everything was recovered with our Vactor and returned to the collection system. Detailed pictures of every process is included. Sewer main was inspected with CCTV and found no structural problems with the collection system in this area. 	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Post Spill CCTV		We are confident that increasing our cleaning schedule in this area, along with CCTV inspections, will eliminate a reoccurrence of a spill in this location. We will perform CCTV inspections and clean quarterly, then clean annually based on inspection findings. This area is already a hot spot for us that we check weekly. This is a hot spot for the same the reason the spill occurred, FOG. The week prior was clear, which means more cleaning is necessary since it was a while since it was cleaned last. The area is structurally fine so more cleaning is the best option. More outreach, restaurant inspections as well as grease interceptor maintenance enforcement will also be performed.		07/30/2024 11:41	Upon clearing the blockage we found grease to be the cause of the spill. Flow was restored and the sewer main was cleaned and inspected by CCTV to rule out any other causes. No other causes were found, structurally the assets are in good condition and grease was ultimately the cause. many restaurants are connected to this sewer main as well as a large appartement complex. Outreach was performed by our environmental specialists. They also inspected all the restaurants in the area for proper maintenance of their grease interceptors. they found one that needed cleaning and gave them a notice.		There are no ongoing investigations. local restaurant grease interceptors and traps were inspected and cleaning was enforced to the property owners. Outreach was also performed. The cause was grease, more frequent sewer main cleaning and outreach is recommended as well as enforcement of grease interceptor cleaning regularly.	07/31/2024 13:30														No local regulatory enforcement action required as there was no illicit discharge.	Modifications will be made to our sewer cleaning schedule. Cleaning this area more frequently that the three year interval. First we will clean quarterly, then based of CCTV inspections, will determine if we can clean annually moving forward. More outreach, restaurant inspections as well as grease interceptor maintenance enforcement will also be performed	We adjusted our cleaning schedule to clean this area more frequently. 	Plan to rehab or replace sewer main is not recommended or needed since this is a newer area and is confirmed to be structurally in good condition. 	The sewer mains in this area and where the blockage occurred do not need to be repaired or replaced, inspections have confirmed the assets are in good structural condition.	No capital improvements scheduled or recommended. This area is fairly new with PVC sewer mains. CCTV inspections of the area are in good condition. The cause of the blockage was not structural but due to debris such as grease.	This area is already an existing hot spot (fog) that we check weekly. More frequent cleaning of this area is needed. We did not notice any back up when we checked the area a week prior which confirms more frequent cleaning is necessary. More outreach will be performed as well. 	No modifications for spill response activities needed at this time. Everything was performed according to our SERP and efficiently. All documentation was performed, complete and thorough spill cleanup was performed. Sewer flow was restored quickly and safely. Any and all investigations were thoroughly done. All safety and notification procedures were followed.	There are no ongoing investigations. local restaurant grease interceptors and traps were inspected and cleaning was enforced to the property owners. Outreach was also performed. The cause was grease, more frequent sewer main cleaning and outreach is recommended as well as enforcement of grease interceptor cleaning regularly.	
9	9SSO10652	Active	City of La Mesa CS	La Mesa City	895882	1.2	Certified	Joe Kuhn	Environmental Manager	31-JUL-24	05-SEP-24	05-SEP-24	Category 2 Spill	4750 Date Ave	07/30/2024 08:45	07/30/2024 08:45	07/30/2024 08:20	07/30/2024 11:30	24-4309		32.7654, -117.0222	32.7654	-117.0222	Other (specify below)	Sewer replacement construction trench.	N/A	6203	Spill was caused by Private Developer Contractor (West Tec) during sewer main replacement.  Spill was fully recovered via Vactor and diversion to sewer system.  	Y	12  Storm Drain at 4750 Date Ave	6203	0			6203	Drainage Conveyance System		Storm Drain Trunk Line on University Ave	Y	32.7654	-117.0222							07/30/2024 09:20	Visual Observation of spill entering SD pipe during flooded trench, until spill end.  City was on hand to visually see the spill during almost the whole event.  Flow was 154 gpm for 40 min, 1 gpm for 20 min	Notification and visual monitoring	Construction Diversion Failure	Pump Failure by Private Contractor	Other (specify below)	Construction Trench	Concrete	Sewer Replacement in trench	30	No Impact	N	Returned All Spill to Sanitary Sewer System		Immediate Mobilization of Public Works and Private Contractor to Divert Spill to sewer	Other (specify below)	Pump failure by Contractor	Contractor Error, City had taken measures to prevent.  Quick mobilization prevented any impact	N/A	08/01/2024 09:27	Diversion Pump failure in trench.  City was on had immediately.  Quick work prevented any impact. 	N												N													
9	9SSO10687	Active	Rainbow Municipal Water Dist CS	Rainbow Municipal Water District	895885	1.4	Certified	Ramon Zuniga	Supervisor	31-JUL-24	07-AUG-24	07-AUG-24	Category 2 Spill	Mission Road Bonsall	07/18/2024 09:15	07/18/2024 09:15	07/18/2024 09:15	07/18/2024 11:00	24-4108		Rainbow Municipal Water District was commissioning a new sewer lift station. During this time, (6) vacuum trucks were solicited to assist Rainbow in tying in a the 12''[force main. GPS coordinates are attached to the SSO report.	33.292304	117.224851	Other (specify below)	Sewer spilled on a paved roadway along a dirt road.		2500	Sewer spilled on a paved roadway along a dirt road.	N	Rainbow Municipal Water District. Was commissioning a new sewer station during that time; transport trucks were being used to connect the Rainbow mwd force main.	2000	500			500	Paved Surface	Sewer spilled on a paved roadway along a dirt road.	Sewer spilled on a paved roadway along a dirt road.	Y	33.292304	117.224851							07/18/2024 15:22	Rainbow Municipal Water District went off the volume of the vactor truck capacity, which is 2,500 gallons in the debris rear tank.	Rainbow Municipal Water District went off the volume of the vactor truck capacity, which is 2,500 gallons in the debris rear tank.	Operator Error (specify below)	Patriot contractor - Mistakenly opened the wrong valve - which caused an overflow.	Other (specify below)	Patriot contractor - Mistakenly opened the wrong valve - which caused an overflow.	Other (specify below)	n/a	0	Patriot contractor - Mistakenly opened the wrong valve - which caused an overflow.	N	Cleaned Up (specify below)	Upon sewer spill. Rainbow and Fowler, Patriot immediately began cleaning up and vactoring sewer release.	Upon sewer spill. Rainbow and Fowler, Patriot immediately began cleaning up and vactoring sewer release.	Other (specify below)	Patriot Contractor made operators aware of which control to operate.	Rainbow mwd - was not involved in transport - Patriot contractor was hired by JW Fowler - to perform services causing the incident.	Rainbow MWD - Commisioning new lift station.	07/18/2024 15:16	Patriot contractor - Mistakenly opened the wrong valve - which caused an overflow.	N												N													
8	8SSO10543	Active	Beaumont City CS	Beaumont City	895887	1.1	Certified	Jerome Moledor	Wastewater collections supervisor		08-AUG-24	08-AUG-24	Monthly Category 3 Spill	Four Seasons Force Main Air Vac - Potrero	07/30/2024 12:58	07/30/2024 13:20	07/30/2024 12:13				Air Vac in median on Potrero, leak in feed line.  Slow leak, only during pump cycles (force main).	33.91834	-116.95334	Other Sewer System Structure	Air Vac Line off of force main		225	Appearance point in the median on Potrero, ran north to curb and gutter on Potrero and ran easterly down Potrero towards Highland Springs Ave.  	Y	storm gutter at potrero and highland springs	0				200	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Curb gutter line, crew san bagged and damned for collection, 	Y	33.91829	-116.94718							07/30/2024 13:35	Visual on-site comparison method with overflow simulation pictures with estimated spill time	visual, comparison model sheet, debris tank level	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure		Air Relief Valve (ARV)/ Blow-Off Valve (BOV)		Copper		19	minimal, w/road closure during repair	N	Cleaned Up (specify below); Contained All or Portion of Spill		Shut off pumps (force main), switched force mains/air vac.  Damned initially with mulch from median, followed by sandbags further down the gutter line.  Vactored spill 	Repaired Facilities or Replaced Defect		Saw cut street, removed asphalt, removed portion damaged copper pipe and replaced with sch80 pvc.		07/31/2024 19:00	C900 force main has a saddle and corpstop connected to a 2.5  copper line that feeds over to an Air Vacuum release manifold.  The copper line failed past the corp stop.  Crews dug up the road and replaced the in-road copper line with schedule 80 pvc.		Event Over, clear failure point	07/31/2024 19:00														N/A	Evaluate copper use on wastewater line.	Monitor air vacs regularly	Replaced roadway-wide length of pipe	Copper line from corp stop to gutter line replaced with sch80 pvc	Copper line from corp stop to gutter line replaced with sch80 pvc	Please see attachments	Copper line from corp stop to gutter line replaced with sch80 pvc	Event Over, clear failure point	
2	2SSO10170	Active	Richmond City CS	Richmond City	895890	1.2	Certified	Mary Phelps	Water Resource Division Manager		26-AUG-24	26-AUG-24	Monthly Category 3 Spill	13th & Cutting	07/05/2024 10:12	07/05/2024 10:33	07/05/2024 09:12				See Attached	37.92528	-122.35729	Gravity Mainline; Manhole			96	See photos	Y	Spill onto paved street curb and gutter	96				96	Paved Surface; Street/Curb and Gutter (2 3)		See attached	Y	37.9528	-122.35729							07/05/2024 10:46	Operator training method of rate of flow at time of discharge, area of wetness in getter and paved street (LxWxH).	Start time based on a residential notification. Stop time based on restoration of flow.	Debris-Rags; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		50	No impact, entirety of spill contained and returned to POTW.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Spill completely contained and returned. Area sanitized and cleaned.	Other (specify below)	Public outreach provided to all residents on line segment	Spill completely contained and returned. Area cleaned and sanitized.		07/05/2024 11:45	Met with operations crew to discuss  after action  report. Discussed adding to hot spot list and increased cleaning efforts.		Public outreach	07/05/2024 11:45														N/A	N/A	Increased cleaning.	N/A	N/A	N/A	N/A	No change	Public outreach	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	895891	1.2	Certified	Kent Vian	Asst. Deputy Director		06-AUG-24	06-AUG-24	Monthly Category 3 Spill	NOT-40201134084-121121-SORRENTO VALLEY RD.	07/30/2024 16:41	07/30/2024 16:55	07/30/2024 16:40				THE SPILL ORIGINATED FROM AIR VALVE EQ#5066845 ON THE ROAD'S SIDE GOING INTO PUMP STATION#65.	32.91892	-117.23906	Other (specify below)	AIR VALVE.	N/A	80	THE SPILL BOUNDARIES APPEARANCE POINT WAS THE AIR VALVE TRAVELING SOUTH INTO DRY DIRT AREA.	N	N/A.	70				70	Other (specify below); Unpaved Surface	DRY DIRT AREA.	THE SPILL TRAVELED SOUTHBOUND NEXT TO ASPHALT STREET, WHICH SETTLED IN A DRY DIRT AREA.	Y	32.91892	-117.23905							07/30/2024 19:30	THE ESTIMATION IS CALCULATED BY VISUAL METHOD.	THE SPILL START TIME IS WHEN THE DISPATCH RECEIVES THE CALL FROM THE CONSUMER REPORTING THE SPILL.	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure; Collection System Maintenance Failure (specify below)	N/A	Air Relief Valve (ARV)/ Blow-Off Valve (BOV); Force Main	N/A	Polyvinyl Chloride (PVC)	N/A	17	THE SPILL IMPACT WAS TO THE DRY DIRT AREA.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	CREWS INVESTIGATED, CONTAINED, SHUT DOWN THE AIR VALVE, RESTORED SEWER FLOW, RETURNED THE SPILL INTO THE SYSTEM, AND CLEANED THE AREA.	Added Sewer to Preventive Maintenance Program; Repaired Facilities or Replaced Defect	N/A	THE SPILL'S CORRECTIVE ACTION WAS TO TURN OFF THE AIR VALVE AND RESTORE FLOW. THEN, REFER TO THE PUMP STATION FOR ROUTINE MAINTENANCE.		07/30/2024 19:30	THE CAUSE WAS A FAILURE OF THE AIR VALVE.		NOT AT THIS TIME.	08/01/2024 10:33														N/A	N/A	 MANAGEMENT WILL DISCUSS ANY ADJUSTMENT IF NEEDED.	N/A	PUMPS WILL MAKE THAT DETERMINATION HAS NEEDED.	N/A	N/A	N/A	NOT AT THIS TIME.	
5S	5SSO11482	Active	Lincoln Village Maintenance District CS	San Joaquin Cnty DPW	895895	1.3	Certified	Ben Guzman	Superintendent		01-AUG-24	01-AUG-24	Monthly Category 3 Spill	2806 Sheridan Way	05/08/2024 18:02	05/08/2024 18:22	05/08/2024 17:45				Manhole in front of 2806 Sheridan Way	38.00387	-121.34789	Gravity Mainline			293	Small are contained form manhole to catch basin.	Y	Catch basin in front of 2806 Sheridan	293				293	Drainage Conveyance System; Street/Curb and Gutter (2 3)		Catch basin, storm system	N									05/08/2024 19:00	Visual and spoken information from employees on site. Spill Estimation Procedure in SSMP. See Attached	3.9 GPM X 75 minutes = 283 gallons	Collection System Maintenance Failure (specify below)		Gravity Mainline		Vitrified Clay		65	Minimal overflow, contained	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Contained spill. cleaned catch basin, storm system, and pump station sump. Pumped pump sump to sanitary system (COS)	Other (specify below)	Established time COS pumps station can be off	Established time COS pumps station can be off		05/09/2024 19:30	City of Stockton ARV failed resulting in them Turning off pumps stations. Lincoln Village system temporarily filled and had a small overflow. 		N/A	05/09/2024 16:00														N/A	N/A	N/A	N/A	N/A	N/A	N/A	Adjusted the time COS pump stations can be off so that Lincoln Village system does not have SSOs.	N/A	
5F	5SSO11297	Active	Fresno Co 41-Shaver Lake CS	County of Fresno	895899	1.2	Certified	Nathalie Montejano	Program Technician	01-AUG-24	01-AUG-24	01-AUG-24	Category 2 Spill	Noth east of Outcrop and Granite Ridge Road intersection 	07/29/2024 14:00	07/29/2024 14:30	07/29/2024 14:00	07/30/2024 12:40	24-4310		Mainline pipe crushed by a tree root. Allowed root intrusion blocking sewer flow and causing a backup at the manhole. 	37.0909	-119.30682	Gravity Mainline; Manhole			26000	See attached photos with descriptions. 	N						0	Unpaved Surface		Traveled down dirt path in the forest. 	N									07/30/2024 11:00	Operator estimate assumed the spill was ongoing for 24 hours at a steady flow rate. 	Start time was when it was discovered. End time was when it was no longer flowing and leaking. 	Other (specify below)	Tree fell on top of sewer main pipe which led to root intrusion that caused the back up.  	Gravity Mainline; Manhole		Polyvinyl Chloride (PVC)		20	None, all onto dirt in forest. 	N	Cleaned Up (specify below); Restored Flow	Picked up any debris and sprayed with chlorine solution. 	Operater tried hydro-jetting then called in construction crew to locate and excavate pipeline.  	Repaired Facilities or Replaced Defect		N/A	N/A	08/01/2024 11:00	Operater tried hydro-jetting then called in construction crew to locate and excavate pipeline.	N												N													
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	895903	1.1	Certified	Ameal McLaurin	Sewer Supervisor 2		02-AUG-24	02-AUG-24	Monthly Category 3 Spill	7 Kingwood Road, Oakland Ca	07/25/2024 10:25	07/25/2024 11:00	07/25/2024 09:15				Manhole on an easement in rear of the property overflowing sewage onto unpaved surface and soaking into the soil.	37.79565	-122.17605	Manhole			84	Manhole on an easement in rear of the property overflowing sewage onto unpaved surface and soaking into the soil.	N						0	Unpaved Surface		Manhole on an easement in rear of the property overflowing sewage onto unpaved surface and soaking into the soil.										07/25/2024 17:25	15'L x 4'W x 1'D x 7.48-gal x .1875 = 84 gallons	Start time was based on eyewitness account. The end time was based on sewer crew restoring the flow in the mainline.	Root Intrusion		Gravity Mainline		Vitrified Clay		46	Manhole on an easement in rear of the property overflowing sewage onto unpaved surface and soaking into the soil.	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow	Raked and removed solids from the unpaved surface.	Raked and removed solids from the unpaved surface.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		CCTV inspection W.O. # 1544659 found root intrusion to had been the potential cause of the overflow.		07/31/2024 17:05	CCTV inspection W.O. # 1544659 found root intrusion to had been the potential cause of the overflow. 		N/A	07/31/2024 17:05														N/A	CCTV inspection W.O. # 1544659 found root intrusion to had been the potential cause of the overflow. Mainline has been placed on a 6-month high frequency power rodder program, W.O. # 1545576.	 Mainline has been placed on a 6-month high frequency power rodder program, W.O. # 1545576.	N/A	CCTV inspection W.O. # 1544659 found root intrusion to had been the potential cause of the overflow.	N/A	CCTV inspection W.O. # 1544659 found root intrusion to had been the potential cause of the overflow. Mainline has been placed on a 6-month high frequency power rodder program, W.O. # 1545576.	CCTV inspection W.O. # 1544659 found root intrusion to had been the potential cause of the overflow. Mainline has been placed on a 6-month high frequency power rodder program, W.O. # 1545576.	N/A	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	895911	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		08-OCT-24	08-OCT-24	Monthly Category 3 Spill	500 South Santa Fe Avenue	08/02/2024 13:23	07/30/2024 20:20	07/24/2024 15:00				Sanitary Sewer Overflow Report.	34.038513	-118.230013	Gravity Mainline			748	Sanitary Sewer Overflow Report. 	N		748				0	Other (specify below)	The entire back up amount soaked into the ground.	Soaked Into The Ground.		34.038513	-118.230013							07/24/2024 15:30	The SSO volume was estimated utilizing a standardized template which calculates the volume by using dimensional analysis.	Flow Rate From The Pump..	Pipe Structural Problem/Failure - Installation		Gravity Mainline		Other (specify below)	Brick and Concrete	93	Approximately 748 gallons of sewage flowed from the sewer due to the blockage. The contractor was able to establish containment and subsequently the entire back up amount soaked into the ground. 	N	Contained All or Portion of Spill		On Friday, August 2, 2024, at 1:23 PM, LA Sanitation and Environment�s (LASAN) Clean Water Conveyance Division (CWCD) received a report of sewage backing up at 500 South Santa Fe Avenue, (TG 634-H6). A CWCD crew arrived at the incident location and determined that the 36-inch main line sewer serving the referenced area had backed up due to the break in the pipe, which was caused by the construction that is adjacent to the sanitary sewer main line. The sewer break was due to construction activities too close to the sanitary sewer mainline. The backup ceased at 3:30 PM on July 24, 2024, after the excess pressure was released from the sanitary sewer pipe. All the necessary clean-up steps had been performed by the contractor  Approximately 748 gallons of sewage flowed from the sewer due to the blockage. The contractor was able to establish containment and subsequently the entire back up amount soaked into the ground.  	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		On Friday, August 2, 2024, at 1:23 PM, LA Sanitation and Environment�s (LASAN) Clean Water Conveyance Division (CWCD) received a report of sewage backing up at 500 South Santa Fe Avenue, (TG 634-H6). A CWCD crew arrived at the incident location and determined that the 36-inch main line sewer serving the referenced area had backed up due to the break in the pipe, which was caused by the construction that is adjacent to the sanitary sewer main line. The sewer break was due to construction activities too close to the sanitary sewer mainline. The backup ceased at 3:30 PM on July 24, 2024, after the excess pressure was released from the sanitary sewer pipe. All the necessary clean-up steps had been performed by the contractor  Approximately 748 gallons of sewage flowed from the sewer due to the blockage. The contractor was able to establish containment and subsequently the entire back up amount soaked into the ground.  		08/02/2024 13:23	On Friday, August 2, 2024, at 1:23 PM, LA Sanitation and Environment�s (LASAN) Clean Water Conveyance Division (CWCD) received a report of sewage backing up at 500 South Santa Fe Avenue, (TG 634-H6). A CWCD crew arrived at the incident location and determined that the 36-inch main line sewer serving the referenced area had backed up due to the break in the pipe, which was caused by the construction that is adjacent to the sanitary sewer main line. The sewer break was due to construction activities too close to the sanitary sewer mainline. The backup ceased at 3:30 PM on July 24, 2024, after the excess pressure was released from the sanitary sewer pipe. All the necessary clean-up steps had been performed by the contractor  Approximately 748 gallons of sewage flowed from the sewer due to the blockage. The contractor was able to establish containment and subsequently the entire back up amount soaked into the ground.  		None At This Time.	08/02/2024 13:23														None At This Time.	The City Pipeline Was Repaired.	The City Pipeline Was Repaired.	The City Pipeline Was Repaired.	The City Pipeline Was Repaired.	The City Pipeline Was Repaired.	The City Pipeline Was Repaired.	On Friday, August 2, 2024, at 1:23 PM, LA Sanitation and Environment�s (LASAN) Clean Water Conveyance Division (CWCD) received a report of sewage backing up at 500 South Santa Fe Avenue, (TG 634-H6). A CWCD crew arrived at the incident location and determined that the 36-inch main line sewer serving the referenced area had backed up due to the break in the pipe, which was caused by the construction that is adjacent to the sanitary sewer main line. The sewer break was due to construction activities too close to the sanitary sewer mainline. The backup ceased at 3:30 PM on July 24, 2024, after the excess pressure was released from the sanitary sewer pipe. All the necessary clean-up steps had been performed by the contractor  Approximately 748 gallons of sewage flowed from the sewer due to the blockage. The contractor was able to establish containment and subsequently the entire back up amount soaked into the ground.   The City Pipeline Was Repaired.	None At This Time.	
5S	5SSO10978	Active	La Contenta CS	Calaveras Cnty Water District	895916	1.2	Certified	Damon Wyckoff	Director Of Operations		05-AUG-24	05-AUG-24	Monthly Category 3 Spill	2162 Vista Del Lago 	08/04/2024 11:45	08/04/2024 12:15	08/04/2024 11:30				Blocked MH at 2162 Vista Del Lago Drive, 38.165655 x -120.834128 weeping out of from under the lid of the MH and pooling in a swale next to the MH	38.165655	-120.834128	Manhole			600	Spill did not travel beyond the swale next tot he MH.	N						600	Unpaved Surface		The spill came out from under the lid of the MH and pooled in a swale next to the MH. 38.165655 x -120.834128	Y	38.165655	-120.834128							08/04/2024 13:30	Visual estimation of the sewage flowing out from under the lid of the MH @ a rate of 5 gpm, calculated against when the spill was first reported (11:30 - two hr. spill) and then weighted based on a visual of the volume in the swale. Overall estimate 600 gallons	Neighbor reported the spill at 11:30 - estimated that this is when the spill began. Spill ended when the blockage was cleared at 1330.	Debris-wipes/Non-disposables; Root Intrusion		Manhole		Polyvinyl Chloride (PVC)		40	Minimal. Spill pooled near the MH on grass and was able to be recovered.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Staff stayed onsite at the MH while other Collections Crewmembers hydro excavated the blocked MH from an upstream MH. Cleaned up with a Gapvax Vacuum truck, rackes, and shovels. 	Adjusted Schedule/Method of Preventive Maintenance		Hydro cleaned the sewer main. Plan to increase the frequency of inspection for this part of the system. Will be reflected in MMS work orders.		08/04/2024 14:00	Unflushables and roots were the casue of the blockage.		None	08/04/2024 14:03														Not applicable. 	Increase in the review of the system	Yes.	No	inspected and cleaned. Found nothing amiss post root and unflushables removal.	No	Mobile MMS work order	No modifications to spill response activities	None	
5S	5SSO10923	Active	Deer Creek CS	El Dorado Irrigation District	895917	1.2	Certified	John Chavers	Collection System Supervisor	05-AUG-24	05-AUG-24	05-AUG-24	Category 2 Spill	DC-2024-07-08	07/30/2024 19:50	07/30/2024 20:31	07/30/2024 20:57	07/30/2024 19:50	24-4323		See Attachment Dirt Road near ML-13 ARV.  38.667385 degrees -120.921954	38.667385	-120.921954	Force Main			1778	See attachment. Attachments cannot be submitted from this screen at this time 	N						270	Unpaved Surface		See Attachment	Y	38.667385	-120.921954							07/30/2024 20:57	See Attachment	See Attachment	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure; Construction Diversion Failure		Air Relief Valve (ARV)/ Blow-Off Valve (BOV); Force Main		Concrete		45	Washed down, wet dirt	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned Portion of Spill to Sanitary Sewer System		See Attachment	Other (specify below); Plan Rehabilitation or Replacement of Sewer	Line filled with slurry and abandoned 7/31/24-8/3/24	Line slurry filled and abandoned	Line slurry filled and abandoned completed 8/3/24	07/30/2024 23:50	See Attachment	N												N													
2	2SSO18110	Active	Treasure Island Development Authority CS	Treasure Island Development Authority	895920	1.4	Certified	Robert Beck	Treasure Island Director	05-AUG-24	06-AUG-24	06-AUG-24	Category 2 Spill	asset # P-131554 leading into CB # N-59105 and being blocked off at P-132757	07/16/2024 06:49	07/16/2024 07:25	07/16/2024 04:52	07/18/2024 11:35			Asset # P-131554 leading into CB # N-59105 and being blocked off at P-132757	37.82267	-122.36831	Force Main			1100	Spill originated from asset # P-131554 leading into CB # N-59105 and being blocked off at P-132757. Cause was from a failed force main from heavy construction equipment driving over it at 5th�st and AVE H @ T.I.	N						1100	Drainage Conveyance System		NA	N									07/31/2024 10:49	water coming out of the ground to be 1 gallon per minute.	water coming out of the ground to be 1 gallon per minute.	Other (specify below)	failed force main from heavy construction equipment driving over it at 5th st and AVE H @ T.I.	Force Main		Vitrified Clay		85	it is an ongoing spill until further repair has been made. We have a vactor vacuum any sewage accumulating at the catch basin once per day.  Field staff was able to plug the downstream storm segment (P-132757) to stop it from flowing into the bay	N	Cleaned Up (specify below)		it is an ongoing spill until further repair has been made. We have a vactor vacuum any sewage accumulating at the catch basin once per day.  Field staff was able to plug the downstream storm segment (P-132757) to stop it from flowing into the bay	Other (specify below)	On going repairs	NA	NA	07/31/2024 10:47	NA	N												N													
1	1SSO10041	Active	Lake Shastina Csd CS	Lake Shastina CSD	895927	1.1	Ready to Certify						Monthly Category 3 Spill	manhole at LAKE SHORE and INDIAN ISLAND	08/05/2024 06:05	08/05/2024 06:00	08/05/2024 05:12				At the manhole at the intersection of Indian Island and Lake Shore RD	41.52	-122.37582	Manhole			500	From a manhole at the intersection of Indian Island and Lakeshore Rd, flowing from the manhole to a sandy drainage ditch  and flowing 40 feet and sinking into the ground	Y	Valcanic ash.  Very pouris	0				0	Drainage Conveyance System that discharges to surface water		3 feet wide and 50 feet long										08/05/2024 07:30	By the hithe of the sewage flowing  out of the manhole (2 ) 2 holes 1.5  around, for 2 hours and 18 minutes.	By the path it traveled and the time it took to sink into the ground and past experiences in the same area	Other (specify below)	Area Power outage	Other (specify below)	unplanned power outage	Other (specify below)	A/C	25	wet ground	N	Mitigated Effects of Spill (specify below)	Sanitized the affected area with bleach	Set up a bypass at the sewer station that was affected by the power outage that caused the overflow.	Other (specify below)	Will try to keep closer contact with power company.	Trying to get backup power at that station		08/05/2024 16:11	none		N/A	08/05/2024 16:11														none	Backup power	none	none	N/A	Backup power	N/A	none	N/A	
5F	5SSO10771	Active	Tuolumne Utilities District CS	Tuolumne Utilities District	895942	1.2	Certified	Aidan Whitmer	Collections Foreman		08-AUG-24	08-AUG-24	Monthly Category 3 Spill	Manhole in backyard of 21985 Sawmill Flat Rd	08/01/2024 18:55	08/01/2024 20:05	08/01/2024 16:00				Spill originated from a manhole in the back field of address 21985 Sawmill Flat Road. Spilled into open grass area around manhole. 	38.02129	-120.382485	Manhole	N/A	N/A	271	Spill was in the back grass area behind the address. The spill was confined to the grassy area near the manhole.	N	N/A	0				200	Unpaved Surface		The spill started and ended in the back field of this address. The spill did not make it to ground water or any drainage channels. 	Y	38.02088	-120.3822							08/01/2024 20:45	The spill volume was calculated by measuring the area of the spill. I wanted to use a saturated soils method listed in the Orange County Spill Estimation Guide but the field that sewer spilled in is regularly irrigated and the soil is very saturated as it is, making it impossible to tell where the sewer saturation ends.	Spill start time was estimated based on words from property owners in the area. One property owner said she noticed the spill around 17:00 and she thought it was fresh and had probably started recently. When we arrived at the site later on, we believed 16:00 sounded like the proper start time estimation based on visual flows and the extent of the spill at that time.	Root Intrusion	N/A	Gravity Mainline	N/A	Other (specify below)	Asbestos Cement	50	There are no known impacts to any vegetation, wildlife or waterways due to this spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow	Disinfected area of spill.	When we arrived on site, the spill was already contained, pooling in a low spot in the field. We mobilized a hydro jetter truck and we were able to unplug the line from the downstream manhole using the hydro. We vacuumed up all spilled liquids and solids with a vacuum truck, washed the entire area down with water and disinfectant and vacuumed up the cleanup water as well. 	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		The line was video inspected the day of the spill to evaluate the spill cause and condition. We followed up the next day to do a final cleaning of the pipe and to determine what method could be used to ensure a spill in this area would not occur again. We determined that the best action would be to use the CIPP method. We are planning on lining the pipe this fiscal year. 		08/02/2024 10:00	The spill was caused by debris hanging up on a large root growing in the line.		No Further investigation ongoing.	08/01/2024 10:51														None	We will be installing a CIPP liner in this line to prevent further issues.	No adjustments made. This line is cleaned annually. The line will be repaired using a CIPP liner in the current fiscal year.	We will line the section of pipe in the current fiscal year.	Inspected asset, preparing for the repair.	none	Line will be CIPP lined within the year.	Spill response worked well. No modification necessary. 	No Further investigation ongoing.	
1	1SSO10041	Active	Lake Shastina Csd CS	Lake Shastina CSD	895945	1.2	Ready to Certify			06-AUG-24			Category 1 Spill	manhole at LAKE SHORE and INDIAN ISLAND	08/05/2024 06:00	08/05/2024 06:21	08/05/2024 05:12				Spill originated in manhole at intersection of Lake Shore Dr and Indian Island	41.52	-122.37578	Manhole			500	wet drainage 50 foot length	Y	sandy/volcanic extremely porous material, immediately soaked into ground	0	0	n/a	0	0	Unpaved Surface		The spill traveled 15' to the sandy volcanic drainage and then 50' south resulting in a puddle for about 5 minutes and sinking into the ground.	Y	41.51997	-122.3758							08/05/2024 07:30	the spill exiting the 2 1  holes were about 1.5 inches high for about 2.5 hours	by the size of the puddle and the short time it took to sink into the ground and from earlier experience.	Pump Station Failure - Power		Manhole		Other (specify below)	a/c	30	wet drainage	N	Cleaned Up (specify below)	sanitized	Immediately began pumping from the station that was effected by the power outage.  Sanitized the affected area.	Other (specify below)	trying to get funding for power backup	Trying to get cooperation from power company	day to day	08/05/2024 07:47	n/a	N	none	08/05/2024 15:48	none	Other (specify below)	sandy drainage	n/a	none	Other (specify below)	none	none	0	N	N	n/a	n/a									none	
2	2SSO10162	Active	Novato And Ignacio CS	Novato Sanitary District	895946	1.1	Certified	Jeff Andress	Collection Systems Superintendent		07-AUG-24	07-AUG-24	Monthly Category 3 Spill	282 Deer Island Ln, Novato, CA 94945	07/19/2024 13:09	07/19/2024 14:00	07/19/2024 09:00				the spill appeared from Manhole J17004 located on Deer Island lane in front of address 282. 	38.10189	-122.53723	Manhole			561	The sludge came out of the manhole and flowed over to the side of the road along the dirt bank. 	N						561	Paved Surface		the spill came out of district manhole J17004 and stayed on the paved road and up against the dirt berm on the side of the road. 	Y	38.10186	-122.5372							07/19/2024 13:00	the sludge was measured out as 25ft x 12ft x 3in= 75cft x7.48gal = 561 gallons	Nate spoke to an employee of the storage yard and he first noticed it about 10am. The Veolia employee who shut down the pump, did so just before 1pm. 	Other (specify below)	It is believed that chunks of struvite were the cause of the blockage causing the overflow. 	Gravity Mainline		Polyvinyl Chloride (PVC)		35	the sludge was contained on the asphalt and up against the dirt bank which was fully recovered and cleaned up. no other impacts. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		use of the vacuum and the high pressure wash down wand to vacuum up the sludge, the high pressure wash down wand was used to push the sludge to the vacuum tube and to wash down the street. The vacuumed up sludge was then dumped at the Novato Sanitary Treatment Plant. 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Veolia Water, the contractor that operates the sludge lagoons and treatment plant will monitor the manhole that receives the decant to make sure this wont happen again. 	Veolia Water, the contractor that operates the sludge lagoons and treatment plant will monitor the manhole that receives the decant to make sure this wont happen again. 		07/19/2024 17:30	Talking with Veolia Water, and theorizing about possible causes it was determined to be some chunks of struvite left in the system from the previous cleaning efforts made by a contractor doing work for Veolia Water.		none	07/23/2024 16:00														None taken. 	Veolia Water, the contractor that operates the sludge lagoons and treatment plant will monitor the manhole that receives the decant to make sure this wont happen again. This was spill was determined to be caused from some residual struvite in the decant line that was cleaned 3 weeks prior. 	none	none	inspected collection system downstream of the spill to determine cause. no obvious causes. 	none	none	none	none	
2	2SSO10179	Active	San Jose City CS	San Jose City	895950	1.1	Certified	Ben Nguyen	Senior Engineer		29-AUG-24	29-AUG-24	Monthly Category 3 Spill	1742 Cheney Drive, San Jose, CA 95129	07/01/2024 08:30	07/01/2024 08:51	07/01/2024 07:00				The spill appearance point was a sanitary manhole in front of the property at 1742 Cheney Drive in San Jose, CA.  A picture of the spill appearance point is included in the Attachments Tab. 	37.30578	-121.92363	Manhole			379	The spill discharged from the sanitary manhole and traveled along the curb/gutter reaching a nearby storm catch basin.  Upon crew arrival, crew set up vaccon and cleared the plug stopping the overflow. The crew contained the spill on the surface using sandbags. During the response, the crew also found a dry storm manhole with a sag that helped contain the spill.  This storm line also had a flap gate built in, inside a MH, and it helped containing the spill. The crew confirmed no sewage leaked further with negative ammonia test strips that showed no concentration (0 ppm) within the drainage system at this location.  Pictures and a map of the spill extent are included in the Attachments Tab. 	Y	The spill a reached a nearby storm inlet approximately 20 ft from the spill appearance point. This storm inlet is connected to the City of San Jose's municipal separate storm sewer system. The sewage traveled within the storm system to a storm manhole #756 connected to the storm segment 1772 which is 15  diameter and 179 ft long.  This segment had a sag in it and also a flap gate preventing the spill travel further down the pipe. In this storm drain manhole, an ammonia test strip showed no concentration (0 ppm) in the standing water in storm drainage system at this location. Sandbag containment was also placed in this storm manhole for containment. Pictures of the storm drain conveyance system and a map of the spill path is included in the Attachments Tab. 	352				379	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		The spill (sewage) traveled along the street and curb/gutter from the manhole (spill appearance point). The manhole is identified in 11.d. and 11.e. The spill reached and traveled along the curb and gutter, then entered City's storm inlet and drainage system. The location of the storm drain inlet is identified in 11.f and 11.g. The crew was able to determine a  spill end point   in the storm drain conveyance system and used sandbags for containment in the nearby storm manhole. Coordinates for the containment in the storm system manhole are identified in 11.h and 11.i. 	Y	37.306012601578	-121.923820318053	37.306050601549	-121.923676635844	37.305566934571	-121.924224364679			07/01/2024 09:05	The total and recovered spill volume was estimated using measurements from the responding crew. On land, the crew recorded spill measurements along the curb/gutter and on the asphalt. In addition, the crew recorded spill depths within the storm drain conveyance system pipes from the inlet to the sandbag containment in storm drain manhole #25019 	The reporting party first noticed the spill on 7/1/2024 at 08:00. At that time, the reporting party stated that the spill had reached the nearby storm drain inlet. Based on the reporting party's information, it was assumed that the SSO likely started an hour before the reporting party saw the spill at 08:00 that day. The start time of the SSO is assumed to have started around 07:00 on 7/1/2024. 	Fats, Oil and Grease (FOG)		Gravity Mainline		Cast Iron		47	No impact to the CSJ waterways as the spill was contained within MS4.  No lasting impact to street/curb and gutter where overflow occurred due to maintenance staff cleaning. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Upon arrival, the responding City crew immediately placed sandbags around the nearby storm drain inlet where the spill had entered. The Crew tracked the spill in the storm drain conveyance system (MS4) and placed sandbags in a manhole where they could contain the spill and test negative for ammonia. The Crew cleared the blockage and observed grease to be the cause of the SSO. Next, the Crew began their cleanup efforts on the street and curb/gutter. Crew used two combo trucks, one flushed water upstream and other vacuumed the water at the downstream containment in the storm drain manhole. All of the spill and induced water was cleaned up from both the land and storm drain conveyance system. Pictures of the containment locations were added to the Attachments Tab. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Grease flyers distributed to nearby residents	The sewer was immediately CCTV'd following the overflow event in order to determine the cause. Further corrective actions the city has planned for this segment include: 1.  Move cleaning frequency to 1 month cycle - Completed on 7/15/2024 2. The mainline will be videoed again prior to one month cleaning to see if cycle adjustment is adequate  scheduled for August 2024 3. The City will conduct greae outreach to the nearby residents - scheduled for August 2024. 		07/01/2024 10:25	While the Responding Crew cleared the blockage in the plugged sanitary mainline, the Crew documented their findings. A pipe basket was used to collect the grease (FOG) that was removed while clearing the blockage within the mainline. After conducting a follow up CCTV of the sanitary mainline pipe, there were no other major O&M observation or structural defects that may have contributed to the blockage. 		All investigation efforts concluded on 7/15/2024 	07/10/2024 15:30														N/A	The city has planned the following O&M modifications to prevent any repeat of the spill event: 1. Move cleaning frequency from 3 months to 1 month - Completed on 7/15/2024.    	Move cleaning frequency from 3 months to 1 month- Completed on 7/15/2024 	N/A	Problem sanitary sewer asset was video inspected after the SSO on 7/1/2024. No major structural defects were found. 	N/A	Documentation of implemented and planned system O&M modifications is included in the attachments tab. 	N/A	All investigation efforts concluded on 7/15/2024 	
2	2SSO10179	Active	San Jose City CS	San Jose City	895953	1.1	Certified	Ben Nguyen	Senior Engineer		29-AUG-24	29-AUG-24	Monthly Category 3 Spill	7158 Via Lomas, San Jose, CA 95129	07/03/2024 19:51	07/03/2024 20:18	07/03/2024 18:00				The spill appearance point was a sanitary manhole in front of the property at 7158 Via Lomas in San Jose, CA.  A picture of the spill appearance point is included in the Attachments Tab. 	37.23066	-121.76735	Manhole			53	The spill discharged from the sanitary manhole and traveled along the curb/gutter reaching a nearby storm catch basin.  Upon crew arrival, crew set up Vaccon truck and cleared the plug stopping the overflow. The crew contained the spill on the surface using sandbags. During the response, the crew also found a dry storm manhole.  The spill did not reach the waterway.  Pictures and a map of the spill extent are included in the Attachments Tab. 	Y	The spill a reached a nearby storm inlet approximately 100 ft from the spill appearance point. This storm inlet is connected to the City of San Jose's municipal separate storm sewer system. The sewage traveled within the storm system to a storm manhole #5008.  Pictures of the storm drain conveyance system and a map of the spill path is included in the Attachments Tab. 	33				53	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		The spill (sewage) traveled along the street and curb/gutter from the manhole (spill appearance point). The manhole is identified in 11.d. and 11.e. The spill reached and traveled along the curb and gutter, then entered City's storm inlet and drainage system. The location of the storm drain inlet is identified in 11.f and 11.g. The crew was able to determine a   spill end point   in the storm drain conveyance system and used sandbags for containment in the nearby storm manhole. Coordinates for the containment in the storm system manhole are identified in 11.h and 11.i. 	Y	37.23048085574	-121.767495062594	37.230346053854	-121.76724799271	37.228702897323	-121.767626000262			07/03/2024 21:21	The total and recovered spill volume was estimated using measurements from the responding crew. On land, the crew recorded spill measurements along the curb/gutter and on the asphalt. In addition, the Crew recorded spill depths within the storm drain conveyance system pipes from the inlet to the sandbag containment in storm drain manhole # 5008. 	The reporting party first noticed the spill on 7/3/2024 at 18:30. At that time, the reporting party stated that the spill had reached the nearby storm drain inlet. Based on the reporting party's information, it was assumed that the SSO likely started sometime shortly before the reporting party saw the spill at 18:30 that day. The start time of the SSO is assumed to have started around 18:00 on 7/3/2024. 	Pipe Structural Problem/Failure - Controls		Gravity Mainline		Vitrified Clay		52	No impact to the CSJ waterways as the spill was contained within MS4.  No lasting impact to street/curb and gutter where overflow occurred due to maintenance staff cleaning. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Upon arrival, the responding City crew immediately placed sandbags around the nearby storm drain inlet where the spill had entered. The crew tracked the spill in the storm drain conveyance system (MS4) and placed sandbags in a manhole where they could contain the spill. The crew cleared the blockage and observed grease to be the cause of the SSO. Next, the crew began their cleanup efforts on the street and curb/gutter. Crew used two combo trucks, one flushed water upstream and other vacuumed the water at the downstream containment in the storm drain manhole. All of the spill and induced water was cleaned up from both the land and storm drain conveyance system. Pictures of the containment locations were added to the Attachments Tab. 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Post Spill CCTV; Repaired Facilities or Replaced Defect	Grease flyers distributed to nearby residents	The sewer was immediately CCTV'd following the overflow event in order to determine the cause. Further corrective actions the city has planned for this segment include: 1. Keep the cleaning frequency to 12 month cycle - Completed on 7/24/2024 2. Repair the BSV at the plugged segment SWRP-0000004750 3. The City will conduct grease outreach to the nearby residents - scheduled for August 2024. 		07/03/2024 22:30	While the Responding Crew cleared the blockage in the plugged sanitary mainline, the Crew documented their findings. A pipe basket was used to collect the grease that was removed while clearing the blockage within the mainline. After conducting a follow up CCTV of the sanitary mainline pipe, there was a major O&M observation or structural defects that may have contributed to the blockage. 		All investigation efforts concluded on 7/24/2024 	07/24/2024 15:30														N/A	The city has planned the following O&M modifications to prevent any repeat of the spill event: 1.Keep the cleaning frequency to 12 month cycle - Completed on 7/24/2024 2. Repair the BSV at the plugged segment SWRP-0000004750.    	N/A	N/A	Problem sanitary sewer asset was video inspected after the SSO on 7/3/2024. A structural defect was found and SR has been created to repair the break. 	N/A	Documentation of implemented and planned system O&M modifications is included in the attachments tab. 	N/A	All investigation efforts concluded on 7/24/2024 	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	895956	1.1	Certified	Ameal McLaurin	Sewer Supervisor 2		09-AUG-24	09-AUG-24	Monthly Category 3 Spill	10120 Sigourney Avenue, Oakland Ca	07/30/2024 18:49	07/30/2024 20:20	07/30/2024 18:00				Manhole on easement overflowing in the rear of the property on a hillside and flowing down into unpaved surface where it soaked into the soil. 	37.75845	-122.14123	Manhole			283	Manhole on easement overflowing in the rear of the property on a hillside and flowing down into unpaved surface where it soaked into the soil. 	N						0	Unpaved Surface		Manhole on easement overflowing in the rear of the property on a hillside and flowing down into unpaved surface where it soaked into the soil. 										07/30/2024 22:43	Duration time 283 minutes x 1GPM= 283 gallons	Start time was based on eyewitness account. The end time was based on responding sewer crew restoring the flow in the mainline.	Pipe Structural Problem/Failure - Controls; Root Intrusion		Other (specify below)	Lamp-hole	Other (specify below); Polyvinyl Chloride (PVC)	PE	26	Manhole on easement overflowing in the rear of the property on a hillside and flowing down into unpaved surface where it soaked into the soil. 	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow	Raked and removed solids. A claim packet was provided to property owner to have a restoration company to do further cleanup and mitigation of the spill areas.	Raked and removed solids. A claim packet was provided to property owner to have a restoration company to do further cleanup and mitigation of the spill areas.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		CCTV W.O # 1545756 found root intrusion in lamp-hole to had been the potential cause of the overflow. Mainline has been added to a 6-month hydro high frequency program. Dig tag W.O # 1546849 has been created to dig and replace the lamp-hole.		08/07/2024 11:30	CCTV inspection found root intrusion in the lamp-hole to have been the potential cause of the overflow. Sewer crews removed the root intrusion.		N/A	08/07/2024 11:30														N/A	CCTV W.O # 1545756 found root intrusion in lamp-hole to had been the potential cause of the overflow. Mainline has been added to a 6-month hydro high frequency program. Dig tag W.O # 1546849 has been created to dig and replace the lamp-hole.	 Mainline has been added to a 6-month hydro high frequency program.	 Dig tag W.O # 1546849 has been created to dig and replace the lamp-hole.	CCTV W.O # 1545756 found root intrusion in lamp-hole to had been the potential cause of the overflow.	N/A	CCTV W.O # 1545756 found root intrusion in lamp-hole to had been the potential cause of the overflow. Mainline has been added to a 6-month hydro high frequency program. Dig tag W.O # 1546849 has been created to dig and replace the lamp-hole.	CCTV W.O # 1545756 found root intrusion in lamp-hole to had been the potential cause of the overflow. Mainline has been added to a 6-month hydro high frequency program. Dig tag W.O # 1546849 has been created to dig and replace the lamp-hole.	N/A	
3	3SSO10307	Active	Pismo Beach CS	Pismo Beach City 	895969	1.3	Certified	William Haas	Utilities Manager	08-AUG-24	13-AUG-24	13-AUG-24	Category 1 Spill	Wadsworth/Bello	08/07/2024 08:41	08/07/2024 08:50	08/07/2024 08:30	08/07/2024 10:27	24-4453		Block in line caused by construction up stream.  perked out of the manhole.	35.14476	-120.64127	Manhole			250	Flowed from manhole to the gutter and storm drain inlet. Dammed up in gutter	Y	storm drain connected to a drain system that runs .5 mile to the beach.  Did not reach the beach. Didnt make it to the next DI. Dry	50	50	no discharge to surface water.  Most of spill was captured on the street.	0	50	Paved Surface		Dirt and debris clogged sanitary sewer causing a back up through the manhole resulting in a spill.	Y	35.14478	-120.6412							08/07/2024 08:55	volume estimated by observing flow from the manhole.	using a visual guide provided in the spill report packet.	Debris from Construction		Manhole		Concrete		50	impact was minimal.  Caught and dammed in the gutter pan and drop inlet of storm drain. Vactor truck cleaned up the majority.	N	Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Blocked drain inlets immediatly.  Deployed Vactor truck to remove blockage in pipe. Flow restored and gutters washed, chlorinated and vacuumed up.	Other (specify below)	Keep a better eye on construction work in the area.	Inspect manholes more frequently when construction is in the area.	na	08/07/2024 09:30	found debris in the manhole upon inspection.	N			none	Other (specify below)	none affected, did not reach the ocean.	none affected	na	Other (specify below)		SLO County Health	0	N	N												
2	2SSO10105	Active	Central Contra Costa Sd CS	Central Contra Costa Sanitary District	895970	1.3	Certified	Paul Seitz	Collection System Division Manager	08-AUG-24	20-AUG-24	20-AUG-24	Category 1 Spill	3530 Mt Diablo Blvd Lafayette	08/06/2024 14:28	08/06/2024 14:44	08/06/2024 14:28				Failed trenchless spot repair	37.89224	-122.11817	Manhole			125	Spill traveled from manhole, down curb and gutter, into storm drain finally entering Las Trampas creek.	Y	Spill a small portion of storm drain before draining to natural creek.	125	0	Spill discharged from 72B3-M51	125	125	Drainage Conveyance System that discharges to surface water; Paved Surface; Surface Water		Spill flowed from manhole, down curb and gutter, into a storm drain and eventually into a flowing creek.	Y	37.89217	-122.1186	37.89106	-122.11777					08/06/2024 14:53	We used the flow and duration formula. 5 GPM X 25 min= 125 gal.	A field crew was driving past the manhole and observed a beginning of a spill. At the time he drove by it was obvious the spill had very recently started. At that time the crew called Dispatch to send a cleaning truck to unplug the line. 	Pipe Structural Problem/Failure - Installation		Gravity Mainline		Other (specify below)	A previously installed trenchless spot repair failed causing debris and fog to plug line.	76	Based on an inspection conducted by third party biologist, there was no negative impact on the creek or it's aquatic life.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		We tested the creek to determine the reach of the spill and set up pumps downstream of that area. We pumped and flushed the creek until a clean test was achieved.	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		We inspected the mainline with CCTV and repaired the defect.	Repair made to mainline on 8/19/24	08/06/2024 20:30	The cause of the spill was found to be a failed trenchless repair discovered by CCTV on 8/8/24	N			Las Trampas Creek	Stream/Creek		Stream	None, verified by an independent biologist. 	Other (specify below)	None	N/A	0	N	Y	Upstream, Site, Downstream	CBOD, Dissolved oxygen, PH, Total residual chlorine, Ammonia, COD, Enterococcus, Total/fecal coliform, E-coli										
2	2SSO10105	Active	Central Contra Costa Sd CS	Central Contra Costa Sanitary District	895972	1.1	Certified	Paul Seitz	Collection System Division Manager		20-AUG-24	20-AUG-24	Monthly Category 3 Spill	1142 Upper Happy Valley Rd Lafayette	08/04/2024 14:00	08/04/2024 21:52	08/04/2024 14:00				Spill discharged from private lateral at address 1142 Upper Happy Valley Rd.	37.90035	-122.15081	Lateral Clean Out (Private)			261	Spill spread to landscaped area in front yard of address.	N						261	Unpaved Surface		See question 8	Y	37.90035	-122.15081							08/04/2024 22:38	Calculated the spill volume by using the area method technique.	We measured L X W X D X 7.48 X 100% area wetness in 2 areas. One area equal to 197 gallons and the second equal to 64 gallons for a total of 261.	Root Intrusion		Manhole		Vitrified Clay		75	Minimal impact to landscape area. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Spill was self contained in landscape area. We proceeded to clean-up the immediate area to homeowner satisfaction. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Review CCTV in our bi-weekly Operations meeting and discuss frequency of cleaning or if rehabilitation is needed. 		08/05/2024 15:30	Removed roots by mechanical rodder and confirmed root intrusion by CCTV. 		None	08/08/2024 07:30														N/A	Review CCTV in our bi-weekly Operations meeting and discuss frequency of cleaning or if rehabilitation is needed. 	Added 71C2-M52 to our manhole check program.	N/A	CCTV	N/A	See attached maintenance schedule	after a review of our spill response, no modifications were required.	None	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	895984	1.1	Certified	Kent Vian	Asst. Deputy Director		21-AUG-24	21-AUG-24	Monthly Category 3 Spill	NOT# 40201139472 5254 COPLEY DR.	08/08/2024 12:01	08/08/2024 12:19	08/08/2024 12:00				THE SPILL ORIGINATED FROM A BROKEN FORCED MAIN UNDER THE STREET.	32.83759	-117.1596	Force Main	N/A	N/A	925	THE SPILL WAS COMING UP THROUGH CRACKS IN THE STREET, RAN SOUTH IN THE CURB AND GUTTER, INTO THE STORM DRAIN AND TRAVELED WEST AND TO AN OUTFALL WHERE THE SEWER POOLED UP.	Y	THE STORM CONVEYANCE SYSTEM WAS AN UNDERGROUND SYSTEM UNTIL THE OUTFALL.	800				825	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface	NA	THE SPILL WAS COMING UP THROUGH CRACKS IN THE STREET, RAN SOUTH IN THE CURB AND GUTTER, INTO THE STORM DRAIN AND TRAVELED WEST AND TO AN OUTFALL WHERE THE SEWER POOLED UP.	Y	32.83759	-117.1596	32.83769	-117.15946	32.84063	-117.16764			08/08/2024 12:50	THE SPILL VOLUME ESTIMATIONS WERE CALCULATED USING THE VISUAL CALCULATED METHOD.	THE SPILL START WAS THE TIME THE CUSTOMER CALLED DISPATCH AND THE SPILL END TIME WAS THE TIME CREWS VISUALLY SAW THE SPILL STOP.	Pipe Structural Problem/Failure - Controls	NA	Force Main	N/A	Polyvinyl Chloride (PVC)	N/A	30	THE IMPACTS OF THE SPILL WERE TO THE STREET, CURB AND GUTTER, STORM DRAIN AND THE DIRT AREA OF THE OUTFALL.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	THE SPILL RESPONSE ACTIVITIES WERE IMMEDIATELY TO CONTAIN THE SPILL USING A COMBO TRUCK AND CAPTURE THE SPILL DOWNSTREAM WITH THE COMBO TRUCK. CREWS USED A REDUCER WITH 4-INCH SUCTION HOSE TO RECOVER THE SPILL IN THE NON-RIGHT OF WAY. CREWS INTRODUCED CLEAN WATER TO THE STORM DRAIN SYSTEM AND VACCUMED THE WATER DOWNSTREAM. CREWS WASHED DOWN THE STREET AND COLLECTED THE WATER.	Repaired Facilities or Replaced Defect	N/A	THE SPILL CORRECTIVE ACTION WAS TO ISOLATE THE BROKEN SECTION ON THE MAIN AND DIVERT THE FLOW TO THE SECONDARY MAIN. THE CONSTRUCTION CREW IS PLANNING TO REPAIR THE BREAK WITHIN THE WEEK.		08/08/2024 20:00	THE CAUSE OF THE SPILL WAS A BROKEN PIPE.		N/A	08/21/2024 10:00														NONE	UNKNOWN AT THIS TIME	N/A	N/A	THE CONSTRUCTION CREW IS PLANNING TO REPAIR THE BREAK WITHIN THE WEEK.	N/A	N/A	N/A	N/A	
3	3SSO10244	Active	Carmel Area Wastewater District Collection System	Carmel Area Wastewater District	895985	1.3	Certified	Daryl Lauer	Collection Supervisor	09-AUG-24	16-AUG-24	16-AUG-24	Category 2 Spill	Calle easement MH S622	08/09/2024 11:22	08/09/2024 11:22	08/05/2024 15:42	08/09/2024 13:51	24-4502		Heavy vegetation, steep terrain, single track / easement at MH S622. Due to sag in mainline causing grease, grit, rags to build up creating a blockage between MH  S616 & S622	36.533095	-121.922604	Manhole		The upstream shallow MH's T601 & T602 were holding water. When jetting downstream to open blockage a small amount spilled as jet nozzle passed by.	22681	Spill ran out of MH and soaked into ground and ran down heavy vegitated steep unsafe hillside.	N	N/A	0	0			0	Unpaved Surface		Staff noticed the spill while walking the easement . Staff called for assistance. the blockage was opened and flow was restored. The spill flowed out of manhole and ran into heavily vegetated area and percolated into the ground. 	Y	36.53264	-121.9224							08/09/2024 11:54	Upstream flow meter (Smart cover) was used to get a three month daily average flow. Once we had the daily average we used a downstream monitor to get the duration. 	Upstream flow meter (Smart cover) was used to get a three month daily average flow. Once we had the daily average we used a downstream monitor to get the duration. 	Debris-General; Debris-Rags; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Ductile Iron		65	The spill flowed out of manhole and ran into heavily vegetated area and percolated into the ground. 	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow		Staff cleaned area that was accessible and removed debris. 	Adjusted Schedule/Method of Preventive Maintenance; Plan Rehabilitation or Replacement of Sewer		Increase cleaning frequency and installed additional flow monitoring devices to prevent future spills. Engineering is now involved to implement a comprehensive solution. 	Additional flow monitoring devices have already been installed, engineering is assessing potential repairs.	08/16/2024 11:14	Due to a sag in the pipeline, the flow was restricted by the grit that settles out in the bottom of sag and the grease that attaches to the upper portions of the pipe. 	N		08/16/2024 11:29										N													
3	3SSO10314	Active	Salinas City CS	Salinas City	895991	1.2	Certified	Gary Gabriel	Wastewater Manager	12-AUG-24	21-AUG-24	21-AUG-24	Category 1 Spill	253 San Juan Grade Road	08/07/2024 13:11	08/07/2024 13:39	08/07/2024 07:30	08/07/2024 15:35	24-4457		Sanitary sewer overflow appearance point was from one manhole in farm field across  from 253 San Juan Grade Road. SSO discharged from manhole to small tailing ditch on farm field.   See Attachment SSO Appearance Point 	36.72985	-121.64115	Manhole			5438	SSO extent of spill originated from manhole across from 253 San Juan Grade Rd. in dirt farm field road. SSO traveled down small farm field tailing ditch finally discharging into Santa Rita Creek. Creek was dammed up at two points on creek channel near Santa Rita Street.   See Attachment Extent of spill and spill boundaries 253 San Juan Grade Rd. 	Y	SSO overflowed from manhole in farm field and traveled in small farm field tailing ditch for approximately 2164 feet until finally discharging into Santa Rita Creek.   See Attachment Drainage Conveyance System 	600	0	SSO traveled 2164 feet down dirt farm field tailing ditch  discharging to surface waters (Santa Rita Creek)   See Attachment Discharge point to Surface Waters 	4838	5310	Drainage Conveyance System that discharges to surface water; Other (specify below); Surface Water	Farm field tailing ditch.   See Attachment Farm Field Tailing Ditch 	Sanitary sewer overflow appearance point from manhole MH-C5-O21 located in farm field across from 253 San Juan Gd. Rd. Then entering farm field tailing ditch next to manhole. Traveled down dirt tailing ditch for approximately 2164 feet entering City outfall discharging into Santa Rita Creek (Little Bear Creek). Then traveling down creek for approximately 3135 feet to dam #1  See Attachment Extent of spill and spill boundaries 253 San Juan Grade Rd. 	Y	36.72985	-121.64115	36.72461	-121.65339					08/07/2024 14:09	Spill volume was calculated by using the Bucket Method at discharge outfall point into Santa Rita Creek.  See Attachment Estimated Spill Volume . Spill volume recovered was calculated by total gallons discharged measured creek velocity, duration of spill and total time it took to install earthen dam.  See Attachment Estimated Spill Volume Recovered  	Spill start time was based on initial call to City Public Works Administration Office at 1:11 pm that was documented using City Sewer Service Call Report.   See Attachment Receiving a Sanitary Sewer Service Call  Interview was conducted onsite with farm staff to determine start time.   See Attachment Date and Time Determinations  City staff determined spill end time based on time blockage was removed from system and when flow was restored at 2:09 pm.   See Attachment Date and Time Determinations 	Damage by Others Not Related to Collection System Construction/Maintenance	Farming operations- Tractor scraping road and cutting tailing ditch caught manhole concrete moving riser rings off manhole structure depositing dirt into manhole causing blockage.  See Attachment Farming Operation Damage to Manhole 	Manhole		Vitrified Clay		50	SSO discharge impacted Santa Rita Creek. Approximately 3135 feet of creek was impacted where SSO discharge comingled with irrigation and creek water. Dams were installed at Santa Rita Street to contain SSO discharge where recovery efforts were conducted.   See Attachment Extent of spill and spill boundaries 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Installation of two earthen dams on creek at Santa Rita Street to contain SSO discharge. Recovery efforts of vacuuming activities.  See Attachment Earthen Dam Installation  and  See Attachment Recovery Vacuuming Efforts  	Staff received call of SSO and immediately dispatched sewer crews to discharge site identifying manhole overflowing across from 253 San Juan Grade Rd in farm field. Once identification was made of blockage location Vac-con truck was setup to remove blockage and start cleaning procedures. Second Vac-con was dispatched to the end of tailing ditch to contain discharge from overflow. Additional staff responded to Santa Rita Street on creek with backhoe and began installation of two earthen dams to contain discharge in creek. Once cleanup efforts were completed in farm field both Vac-con trucks were moved into position to start recovery vacuuming efforts at dam installation location. These efforts continued through the night and resumed the following day till end of work day. The  following day both dams were removed. All recovery water was returned to the sanitary sewer system.	Post Spill CCTV; Repaired Facilities or Replaced Defect		Made repairs to manhole damaged by farming operations. Installed marker poles to identify location of sewer utilities.   See Attachment Repairs to Manhole	1. Repair manhole structure completed 8/9/24 2. Install marker poles in farm field road to identify location of utilities completed 8/9/24 3. Continued monitoring of installed marker poles. 4. Continued Operations and Maintenance of system assets. 	08/09/2024 15:00	Investigation conducted onsite determined that the cause of spill was due to farming operations that damaged manhole riser and concrete ring which caused dirt to fall into manhole from farm field causing blockage in system resulting in sanitary sewer overflow. 	N			Santa Rita Creek	Stream/Creek		Natural Creek/Streambed	None observed	Other (specify below); Public Closure	Posted no entry signs in Park from Van Buren St. to Santa Rita Street.    See Attachment Creek Posting 	Monterey County Health	7	N	N												
8	8SSO10636	Active	Colton Water Reclamation Facility CS	Colton City	895998	1.6	Ready to Certify						Monthly Category 3 Spill	Lake Cadena Mobile Park	08/08/2024 07:30	08/08/2024 07:45	08/08/2024 07:00				At this location Mobile Home Space 102, SSO occurred from lateral due to City Lift Station Power Outage.	34.02194	-117.34072	Lateral Clean Out (Private); Pump Station			50	SSO occurred due to lift station power outage and spill was at a private lateral onto property.	N						15	Other (specify below)	private property (lawn)	Spill was due to lift station power outage and came out of private lateral at space 102 (mobile home).										08/08/2024 07:55	math formula	math formula	Pump Station Failure - Power		Pump Station - Power		Polyvinyl Chloride (PVC)		30	SSO occurred on private property	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow		Reset plc (restored power). Vacuumed up spill that was contained on private property , disinfected and deodorized.	Other (specify below); Repaired Facilities or Replaced Defect	Reset plc	Spill was due to power outage caused by a fire in the city. Install generator.		08/08/2024 08:45	power outage in the city / no power to station . 		no	08/12/2024 09:00														no	install generator.	no	no	yes	no	no	no	no	
5F	5SSO11297	Active	Fresno Co 41-Shaver Lake CS	County of Fresno	896010	1.1	Certified	Nathalie Montejano	Program Technician		12-AUG-24	12-AUG-24	Monthly Category 3 Spill	Hwy 168 and Tollhouse Road	08/09/2024 14:00	08/09/2024 14:00	08/09/2024 14:00				Southern California Edison Power failure resulting in power not reaching Lift Station 10. 	37.11168	-119.32057	Pump Station			600	Spilled out from the Lift Station and down Hwy 168. 	N						0	Paved Surface		Runoff to highway. 										08/09/2024 15:00	Estimated based on spill area and average flows. 	Field staff assessments. 	Other (specify below)	Southern California Edison power failure resulting in power not reaching Lift Station 10. 	Pump Station - Power		Concrete		49	Runoff to highway. 	N	Cleaned Up (specify below)		Debris was picked up and sanitation of the area. 	Adjusted Schedule/Method of Preventive Maintenance		Field staff checked other manholes. 		08/09/2024 15:00	Southern California Edison power failure resulting in power not reaching Lift Station 10. 		None. 	08/09/2024 15:00														No enforcement action taken. 	N/A	N/A	N/A	N/A	N/A	N/A	N/A	None. 	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	896011	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	12-AUG-24	12-AUG-24	12-AUG-24	Category 1 Spill	265 Elysian Fields, Oakland Ca	08/09/2024 07:52	08/09/2024 08:30	08/08/2024 08:00	08/09/2024 12:54	24-4499		Buried manhole under rocks was overflowing in the rear of the property on easement, the sewage was flowing on unpaved surface downhill to Arroyo Viejo creek dry bed.	37.75924	-122.13187	Manhole			9180	Buried manhole under rocks was overflowing in the rear of the property on easement, the sewage was flowing on unpaved surface downhill to Arroyo Viejo creek dry bed.	Y	Arroyo Viejo creek dry bed.	0	7090	Arroyo Viejo creek dry bed.	7090	0	Surface Water; Unpaved Surface	Arroyo Viejo Creek	Buried manhole under rocks was overflowing in the rear of the property on easement, the sewage was flowing on unpaved surface downhill to Arroyo Viejo creek dry bed.	Y	37.75924	-122.13187							08/09/2024 14:36	1836 minutes x 5 gpm = 9180 gallons Unpaved surface: 50' L x 12' W x 2' D x 7.48 gal. x .1875 = 1683 gallons Unpaved surface: 145' L x 4' W x .5' D x 7.48-gal x .1875 = 407 gallons Soaking into unpaved surface: 1683 + 407 = 2090 gallons Spilled reached creek: 9180 - 2090 = 7090 gallons	Start time was based on eyewitness account. End time was based on when responding crew restoring the flow in the main line.	Vandalism (specify below)	Large rocks found in the channel of the manhole causing wipes to be caught in the rocks, and causing the blockage resulting in the spill.	Manhole	Large rocks found in the channel of the manhole causing wipes to be caught in the rocks, and causing the blockage resulting in the spill.	Polyvinyl Chloride (PVC)		18	Buried manhole under rocks was overflowing in the rear of the property on easement, the sewage was flowing on unpaved surface downhill to Arroyo Viejo creek dry bed.	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow	Sewer staff raked and removed sewage from affected area. Crew flushed the creek with dechlorinated water.	Sewer staff raked and removed sewage from affected area. Crew flushed the creek with dechlorinated water.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Added to six-month hydro preventive maintenance program. # 1512664	Added to six-month hydro preventive maintenance program. # 1512664	08/12/2024 10:00	CCTV work order 1547787 found the mainline to be in good condition, and having vandalism to be the potential cause of overflow.	N			Arroyo Viejo Creek	Stream/Creek		Creek	None	Other (specify below)	None	N/A	0	Y	N												
7	7SSO10519	Active	Imperial City CS	Imperial City	896013	1.1	Certified	Christopher Kemp	Chief Wastewater Operator		12-AUG-24	12-AUG-24	Monthly Category 3 Spill	330 W. Aten Rd	08/12/2024 12:47	08/12/2024 08:55	08/12/2024 05:00				Pinhole leak developed on discharge side of piping just after pump.  Hole would leak while pump was running.	32.82572	-115.56307	Pump Station		Inside Pump Station	100	Spill did not leave pump station grounds.  Problem was discovered early during routine checks.	N	N/a	0				100	Paved Surface		Spill did not leave location and was fully recovered.	N									08/12/2024 08:55	Approximation of visible water on concrete and size of hole in piping.	Visual assessment, accompanied by pump starts and run times, and size of hole in piping.	Pump Station Failure - Mechanical		Pump Station - Mechanical		Cast Iron		9	No major impact, spill was cleaned and recovered.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned All Spill to Sanitary Sewer System	All spill stayed on concrete and was recovered and returned to system.	Pumps were immediately turned off until problem was isolated and taken offline.	Repaired Facilities or Replaced Defect	Section of pipe taken offline and scheduled for replacement.	Plan to replace section of pipe with a more corrosion resistant material to avoid similar problems in the future.		08/12/2024 10:05	Corrosion of metal piping.  Pipe appearance was good from outside, but corrosion came from internally.  Pipe thickness and composition are to be adjusted to avoid future problems.		Inspect other sewer pumping stations for similar pipe materials.  Once identified, replacement will be planned.	08/23/2024 15:00														No spill left lift station grounds and was fully recovered.	Pipe was painted and in good appearance.  Future piping will be of a more reliable material.	Leak was found almost immediately because of current maintenance schedule.	Replacement of piping scheduled to avoid future issues.	Replacement of defective piping, and corresponding piping of same material, in order to avoid a similar problem in the future.	Lift station was rehabilitated less than 10 years ago and functions well.  Proper materials for a small section of piping to be selected and replaced.	Pinhole leak was on section of piping that was easily isolated by closing of a valve.  Piping was custom made during lift station rehabilitation in 2015.  New piping of a proper material will be custom fabricated. 	Response was quick and effective.	Inspect other sewer pumping stations for similar pipe materials.  Once identified, replacement will be planned.	
5R	5SSO10844	Active	Quincy CS	Quincy Community Services District	896017	1.1	Certified	Katie Nunn	General Manager		12-AUG-24	12-AUG-24	Category 2 Spill	2477 East Main St.	08/07/2024 20:00	08/07/2024 20:30	08/06/2024 14:23	08/08/2024 12:51	24-06578		Sewer overflow from customer cleanout at GPS 39.93511N 120.88894 W.	39.93494	-120.88894	Lateral Clean Out (Public)			2500	The spill was located at the rear of the property and flowed into a vacant land area that had a dry channel that contained the spill.	N						1200	Unpaved Surface		The spill was contained to a dry channel on vacant land.	N									08/09/2024 08:00	Measured the length, width and depth of the channel containing the sewage and calculated the estimated volume of the spill.	Customer notified of spill. Staff also looked at SCADA for estimating when the blockage began.	Debris-Rags; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Polyvinyl Chloride (PVC)		30	Due to the remote location of the overflow, there was minimal impact from the spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Returned Portion of Spill to Sanitary Sewer System	Used the Vactor to clean up as much liquid as we could. Used the backhoe to remove the spoiled dirt.	The spill was contained in an exisiting dry channel. Staff barricaded the area and strung caution tape until the blockage could be removed and cleanup performed.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Staff will monitor this line more frequently for FOG and wipes.	None.	08/12/2024 14:31	Staff found the blockage on the mainline and was eventually able to clear it. Located a lot of grease and flushable wipes.	N												N													
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	895422	2.1	Certified	Kent Vian	Asst. Deputy Director	26-JUN-24	13-AUG-24	13-AUG-24	Category 1 Spill	NOT# 20200712809 500 HOTEL CIRCLE N.	06/25/2024 08:24	06/25/2024 08:41	06/25/2024 08:23	06/25/2024 09:28	24-3610		THE SPILL ORIGINATED FROM A MANHOLE NORTH OF 500 HOTEL CIRCLE N. ON A SIDEWALK.	32.76405	-117.16996	Manhole	NONE	N/A	850	THE DESCRIPTION OF THE EXTENT OF THE SPILL AND BOUNDARIES WAS THE SPILL EXITED THE COLLECTION SYSTEM THROUGH A MANHOLE, TRAVELED NORTH ONTO THE CURB AND GUTTER, AND THEN TRAVELED EAST INTO THE SAN DIEGO RIVER.	N	NA	0	0	THE DISCHARGE POINT INTO THE SURFACE WATER WAS VIA A CONCRETE EMBANKMENT.	830	20	Paved Surface; Street/Curb and Gutter (2 3); Surface Water	N/A	THE SPILL EXITED THE MANHOLE, HEADED NORTH AND THEN EAST INTO THE SAN DIEGO RIVER.	Y	32.76405	-117.16996	32.7642	-117.17009	32.76437	-117.17011			06/25/2024 08:57	VISUAL CALCULATED METHOD/ DURATION AND FLOW METHOD.	START TIME ESTIMATIONS WERE ASSUMED WHEN THE CONSUMER CALLED IN AND REPORTED THE SPILL TO THE CITY DISPATCH.	Fats, Oil and Grease (FOG)	N/A	Gravity Mainline	THE SYSTEM FAILURE WAS DUE TO A GREASE BLOCKAGE 167' UPSTREAM OF EQ# 10869722.	Vitrified Clay	N/A	56	IMPACTS OF THE SPILL WERE TO THE SIDEWALK, CURB, GUTTER AND THE SAN DIEGO RIVER.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	CONTAINMENT EFFORTS- DID NOT HAVE IMMEDIATE SPILL CONTAINMENT DUE TO THE LOCATION OF OTHER STAFF MEMBERS. THE CREW RELIEVED THE BLOCKAGE WHICH STOPPED THE SPILL. CLEANED UP- WASH DOWN AND CLEAN UP DEBRIS FROM THE SPILL PATH.	Inspected Sewer Using CCTV to Determine Cause	N/A	THE SPILL CORRECTIVE ACTION- CREWS RELIEVED A GREASE BLOCKAGE 167' UPSTREAM OF EQ# 10869722. 	NO KNOWN MILESTONES OF NOW.	06/26/2024 08:00	CREWS RELIEVED A GREASE BLOCKAGE 167' UPSTREAM OF EQ# 10869722. 	N	N/A		SAN DIEGO RIVER	River	N/A	The San Diego River is a river in San Diego County, California. It originates in the Cuyamaca Mountains northwest of the town of Julian, then flows to the southwest until it reaches the El Capitan Reservoir, the second-largest reservoir in the river's watershed at 112,800 acre-feet (139,100,000 m3). Below El Capitan Dam, the river runs west through Santee and San Diego. While passing through Tierrasanta it goes through Mission Trails Regional Park, one of the largest urban parks in America.  It flows near the Mission San Diego de Alcal�. The river's valley downstream from there is known as Mission Valley for that reason. The valley forms a transportation corridor for Interstate 8 and for the San Diego Trolley Green Line. The river discharges into the Pacific Ocean near the entrance to Mission Bay, forming an estuary.	THERE ARE NO KNOWN VISUAL IMPACTS ON AQUATIC LIFE.	Other (specify below)	THERE IS NO PUBLIC ACCESS TO THIS AREA OF THE RIVER.	N/A	0	N	N	N/A	N/A									N/A	
4	4SSO10396	Active	Irwindale City CS	Irwindale City	896023	1.2	Certified	Eric Liu	Civil Engineer		05-SEP-24	05-SEP-24	Monthly Category 3 Spill	2213-0009 (15547 East 1st Street, Irwindale)	08/10/2024 08:25	08/10/2024 09:40	08/10/2024 03:00				CSMD Map Sheet No. 2213 MMS No. 8889354 Manhole No. 9 was overflowing. 	34.12085	-117.94017	Manhole	Manhole No. 9		50	The estimated spill dissipated onto the street. 	N						0	Street/Curb and Gutter (2 3)		The spill was contained in the gutter. 	N									08/10/2024 03:30	Visual or eyeball method	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		42	N/A	N	Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow		Upon arrival at East 15547 1st Street, Manhole number 9 was down and running. However, there were signs of overflow. Fifty gallons of the sewage spill were contained in the gutter. The mainline was hydro jetted, and all required agencies and the complainant were notified. 	Added Sewer to Preventive Maintenance Program; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause		Inspected sewer using CCTV, forwarded a grease accumulation report and scheduled 90-day periodic preventive maintenance.   		08/10/2024 10:30	A grease accumulation report was forwarded to Enviornmental Programs Division for further investigation. 		A grease accumulation report was forwarded to Enviornmental Programs Division for further investigation. 	10/10/2024 12:00														A grease accumulation report was forwarded to Enviornmental Programs Division for further investigation. 	N/A	Mainlines from Manholes 6 to 9 are added to a 90-day hydro periodic.    	N/A	N/A	N/A	N/A	N/A	A grease accumulation report was forwarded to Enviornmental Programs Division for further investigation. 	
6A	6SSO11118	Active	Tahoe City Public Utility Dist CS	Tahoe City PUD	896024	1.2	Certified	Dan Lewis	Utilities Superintendent		13-AUG-24	13-AUG-24	Monthly Category 3 Spill	263 Drum Rd	08/12/2024 14:30	08/12/2024 14:30	08/12/2024 14:15				ARV failure on sewer force main, photographs attached	39.04313	-120.12014	Manhole			435	spill exited manhole where ARV with 2  port failed, and traveled a distance of approximately 40 feet  Photographs attached 	N						100	Paved Surface; Unpaved Surface		spill traveled a distance of 40 feet on paved and unpaved surface										08/12/2024 15:20	Spill volume was estimated by gpm witnessed by TCPUD staff	Visually witnessed and called in by public and staff member in that area	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure		Air Relief Valve (ARV)/ Blow-Off Valve (BOV); Force Main; Manhole		Other (specify below)	Force main is ACP, but failure occurred internally in ARV	54	spill traveled on paved surface and absorbed into unpaved surface	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below)	Isolated 2  gate valve for ARV	TCPUD crews were able to evacuate sewage from ARV manhole and then isolated 2 gate valve for failed ARV.  The spill area was then sprayed into vactor suction, the top layer of unpaved material was removed, and the entire spill area was disinfected with a light chlorine solution 	Other (specify below)	2  gate valve for ARV is closed and capped	A new air release/vacuum valve has been ordered and TCPUD crews will install once it arrives.  Preventative maintenance inspections are ongoing    		08/12/2024 17:20	Internal components of ARV failed		none	08/12/2024 15:20														N/A	Continued ongoing preventative maintenance inspections	none at this time	ARV will be replaced once delivered	Yes	N/A	CMMS work order	N/A	none	
2	2SSO10159	Active	Napa Sd CS	Napa Sanitation District	896026	1.2	Certified	Seth Rossi	Collection System Manager	13-AUG-24	14-AUG-24	14-AUG-24	Category 1 Spill	Broadmoor Dr Napa CA 94558 Mainline  L60-015 - L60-016 	08/10/2024 12:05	08/10/2024 12:30	08/10/2024 08:00	08/10/2024 14:48	24-4519		Spill originated out of residential clean out at 1057 Broadmoor Dr and ran down the street approximately 400ft to a catch basin. The catch basin led to a dry water conveyance system. See photos.	38.311463471559	-122.34593556948	Lateral Clean Out (Public)			383	Spill originated out of residential clean out at 1057 Broadmoor Dr and ran down the street to a catch basin. The catch basin led to a dry water conveyance system. See photos.  Street Area 400'x1'x.08'  Dirt Area 5'x3'x2.75'	Y	The drainage conveyance system was dry at the time. See photos.	0	144	The discharge point was a storm drainpipe leading to a water conveyance system.	144	239	Drainage Conveyance System; Other (specify below); Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface	Storm Drain.	Spill originated out of residential clean out at 1057 Broadmoor Dr and ran down the street approximately 400ft to a catch basin. The catch basin led to a dry water conveyance system. Workers posted spill notifications and made neighbors aware of the issue. See photos.	N									08/10/2024 13:15	Volume measurement of spill area by depth and total area of spill size at multiple locations. Spill that made it to dirt was lost and absorbed in soil. Total spill area of the paved surface was recovered.	Based on the neighbor of 1057 Broadmoor observations and comments. 	Debris-Rags; Other (specify below)	Debris appeared to be food wrapped in foil.	Gravity Mainline		Other (specify below)	HDPE	6	Paved area was flushed and vacuumed, dirt areas were posted with signs to notify people of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Cal OES was notified, and signs were posted. 	Mainline blockage cleared, contaminated paved areas were flushed and vacuumed. Dirt areas were posted with signs and neighbors notified of the spill.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Adjusted preventative maintenance schedule.	N/A	08/12/2024 11:00	Response used mini push cam equipment to locate and view blockage that caused the spill. After flow was restored, CCTV was sent in to assess condition of pipe on Monday 8/12/24.	N			Water Conveyance System	Other (specify below)	Water Conveyance System. Dry conveyance system that would lead to creek.	Dry water conveyance system. Dirt and forest terrain.	N/A	Other (specify below)	Signs posted but no actual restrictions.	N/A	0	Y	N	Dry Water Conveyance System, no water to sample. Dry Creek bed. No water flowing. Spill absorbed into soil.	Dry Water Conveyance System, no water to sample. Dry Creek bed. No water flowing. Spill absorbed into soil.										
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	895102	2.1	Certified	Daniel Whitlock	Manager	31-MAY-24	14-AUG-24	14-AUG-24	Category 2 Spill	1840 Castro St.	05/29/2024 12:18	05/29/2024 12:45	05/29/2024 11:35				Spill appeared out of manhole N-22569 and at the home of 1840 Castro St. Asset P-97411 (main sewer pipe) was blocked and caused a backup up into L-262285 and into garage of 1840 Castro St. 	37.7466989	-122.4339181	Lateral Clean Out (Private); Manhole; Upper Lateral (Private)			1593	Blocked main sewer P-97411 and exited through manhole N-22569 along with upper lateral at 1840 Castro St. (L-262285) Spill also appeared in garage of 1840 Castro St.	N						1593	Other (specify below); Paved Surface; Street/Curb and Gutter (2 3)	Combined storm drain and concrete garage.	Spill ended up in garage of 1840 Castro as well as the street.	Y	37.7466989	-122.4339181							05/29/2024 11:31	Duration of flow from manhole. Eyeball and witness approximates spill lasted for 5 minutes.  (175 x 5) = 875 gallons  Spill measured in garage: 15' x 8' x 1  x 7.48 x.8 = 718.08 gallons  718 gallons + 875 gallons = 1593 gallons total	Flow duration measured as 175 gallons per minutes	Debris from Construction		Gravity Mainline		Other (specify below)	ISP	84	Overflow on Castro and Cesar Chavez St. Spill impacted garage at 1840 Castro St.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow	Returned all spill to combined system.	Disinfected and washed down garage and street. Returned all spill to the combined system.	Inspected Sewer Using CCTV to Determine Cause		WO 8412856 scheduled to CCTV asset P-97411 for 6/11/2024.	Spill Starts at 11:30 am on 5/29/2024 Spill ends at 11:31 am on 5/29/2024 Cleanup starts on 13:45 on 5/29/2024 Cleanup complete at 13:07 on 5/29/2024 CCTV for asset P-97411 scheduled for 6/11/2024	05/29/2024 15:07	Construction debris blocked main sewer asset P-97411 which caused spill to come out onto the street via manhole and up through L-262285 into resident's garage.	N												N													
4	4SSO10420	Active	Rancho Palos Verdes City CS	Rancho Palos Verdes City	895702	2.1	Certified	Eric Liu	Civil Engineer	18-JUL-24	14-AUG-24	14-AUG-24	Category 1 Spill	1545 - 6850 Faircove Drive, Rancho Palos Verdes	06/07/2023 13:40	06/07/2023 14:30	06/07/2023 13:30	06/09/2023 14:34	23-3783		CSMD Map Sheet No. 1545 Overflowing Manhole Nos. 89 and 90 MMS No. 8301575 Note that this spill was originally reported as Category 2 (Event ID: 889443), but after further investigations, it was reclassified as Category 1. 	33.76435	118.39733	Manhole	Manhole Nos. 89 and 90		41907	Sewage discharged from Manhole Nos. 90 and 89 into Windport Canyon Creek which is tributary to Agua Amarga Canyon. 	N				Sewage discharged from Manhole Nos. 90 and 89 into Windport Canyon Creek which is tributary to Agua Amarga Canyon. 	41907	0	Other (specify below); Unpaved Surface	Windport Canyon Creek which is tributary to Agua Amarga Canyon	Sewage discharged from Manhole Nos. 90 and 89 into Windport Canyon Creek which is tributary to Agua Amarga Canyon. 	N									06/10/2023 16:00	Tributary connection method by engineering staff. 	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops. 	Debris-General		Gravity Mainline		Vitrified Clay		60	Spill occurred in Agua Amarga canyon preserve, no structure or property damage. flow contained to approximate 50'x20' area, quickly absorbed into native soil, and amongst native grasses, shrubs, chaparal growth. Public Health recommended avoiding contact with standing water in the Agua  Amarga Creek absorbed into the dry creek bed and didn't reach the ocean. 	N	Other Enforcement Agency Notified; Restored Flow		Hydro jet equipment was used to break down the mainline debris blockage. Notified all required agencies. City of Rancho Palos Verdes personnel assisted in spill response activity. 	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		The mainline was televised in 08/2023 and found a sag and a lot of sand in there. The point repair to remove and replace the sagging section between MH 90 and 91 was done by contractor in 09/2023.	N/A	06/10/2023 19:30	The mainline was televised in 08/2023 and found a sag and a lot of sand in there. The point repair to remove and replace the sagging section between MH 90 and 91 was done by contractor in 09/2023.	N			Windport Canyon Creek which is tributary to Agua Amarga Canyon	Stream/Creek		Windport Canyon Creek which is tributary to Agua Amarga Canyon	No impacts. 	Other (specify below)	Public Health recommended avoiding contact with standing water in the Agua  Amarga Creek absorbed into the dry creek bed and didn't reach the ocean. 	Public Health recommended avoiding contact with standing water in the Agua  Amarga Creek absorbed into the dry creek bed and didn't reach the ocean. 	0	N	N												
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	896050	1.2	Certified	Daniel Whitlock	Manager		18-SEP-24	18-SEP-24	Monthly Category 3 Spill	562 Green St.	08/09/2024 17:30	08/09/2024 17:50	08/08/2024 09:00				Basement of 562 Green St.	37.7997435	-122.408431	Inside Building or Structure			600	Spill occurred in the basement of 562 Green St. 	N						600	Other (specify below)	Spill went into drain in the basement which goes to the combined system.	Spill appeared in basement of business owner. All spill receded back into the combined system		37.7997435	-122.408431							08/09/2024 19:30	Pictures, eye witness accounts, and eyeball estimation.	Based off amount of water seen in basement.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		11	Spill was contained to basement of 562 Green St. Owner filed claim.	N	Other (specify below); Property Owner Notified; Restored Flow	Returned All Spill to combined system. Business owner hired private company to disinfect and clean up after spill.	No vaccon needed since spill receded into drain in basement back to combined system. Business owners stated they contacted a private cleaning company to disinfect basement.	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below); Post Spill CCTV	Asset P-77812 was flushed and cleaned and walking crews were also depolyed.	Asset P-77812 was already on PM program. Cleaning schedule changed so that it will be cleaned twice a year instead of once a year.		08/09/2024 20:00	P-77812 was responsible due to partial blockage of FOG. There was confusion as to weather 552 Green St, 550 Green St., and 1512 Stockton St. also had overflows occur in their buildings but after inspections, it was found that the only spill was in 552 Green St. We've tried to contact business owners for more photos of spill and any more information they might have but they have not gotten back to us.		None	09/04/2024 13:58														N/A	Clean the asset more frequently to prevent FOG buildup.	Changed frequency of cleaning so that affected asset will be cleaned twice a year instead of once a year.	None	P-77812	None	N/A	N/A	None	
2	2SSO18110	Active	Treasure Island Development Authority CS	Treasure Island Development Authority	896053	1.1	Certified	Robert Beck	Treasure Island Director		20-AUG-24	20-AUG-24	Category 2 Spill	Pump Station 14 	08/01/2024 18:30	08/01/2024 19:00	08/01/2024 18:30				Spill at pump station 14 due to a power outage	37.82546	-122.37621	Pump Station			1550	spill at pump station 14 due to a power outage The spill is estimated at 1550 gallons that reached ground surface and into the storm drain.							1550	Drainage Conveyance System		1550 gallons that reached ground surface and into the storm drain Vac Crew stated all 1550 gallons was recovered and returned back into the sanitary system.  Vac Crew reported spill did not reach Bay water.	N									08/01/2024 22:00	NA	NA	Pump Station Failure - Power		Pump Station - Power		Other (specify below)	Pump Sta, No piping involved 	0	Spill was contained at the downstream drain.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned All Spill to Sanitary Sewer System		Street wash/cleaning	Other (specify below)	Power outage restored	NA	NA	08/01/2024 22:15	Power outage	N	Power outage											N												Power outage	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	896055	1.2	Certified	Kent Vian	Asst. Deputy Director	21-AUG-24	30-AUG-24	30-AUG-24	Category 2 Spill	NOT# 40201141281 760 PACIFIC BEACH DR.	08/14/2024 02:05	08/14/2024 02:55	08/14/2024 02:05	08/14/2024 06:27	24-4586		THE SPILL ORIGINATED FROM AN ELBOW ON A FORCED MAIN THAT FAILED WHERE CREWS WERE ON SITE MAKING REPAIRS.	32.79093	-117.25402	Force Main	NA	NA	3000	THE SPILL BOUNDARIES WERE FROM THE TRENCH WHERE THE FAILURE OCCURRED TO THE STORM DRAIN PUMP STATION, WHERE THE SPILL WAS PUMPED BACK INTO THE SEWER SYSTEM.	Y	THE DRAINAGE CONVEYANCE SYSTEM THAT TRANSPORTED THE SPILL WAS AN UNDERGROUND CONCRETE PIPE, THE SIZE UNKNOWN, THAT FLOWS INTO A STORMWATER PUMP STATION WHERE ITS PUMPED INTO THE SANITARY SEWER SYSTEM.	2910	0			0	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)	NA	THE SPILL APPEARANCE POINT WAS FROM THE TRENCH AND TRAVELED EAST INTO THE STORM DRAIN INLET ON THE NORTHWEST AND SOUTHWEST CORNER OF MISSION BLVD. AND BACK INTO THE SANITARY SEWER SYSTEM.	Y	32.79092	-117.25405	32.79098	-117.25391	32.79076	-117.2539	32.79084	-117.25419	08/14/2024 03:05	VISUAL CALCULATED METHOD	THE METHODOLOGIES OF ASSUMPTION OF THE START AND STOP OF THE SPILL WAS WHEN CREWS VISUALLY SAW THE SPILL START AND STOP.	Pipe Structural Problem/Failure - Installation	NA	Force Main	NA	Polyvinyl Chloride (PVC)	NA	53	THE SPILL IMPACTED THE STREET, CURB AND GUTTER AND STORM DRAIN.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	CLEANED UP- CREWS WASHED DOWN THE AREA.	SEWER EXITED THE TRENCH AND ENTERED THE STORM DRAIN WHERE IT WAS THEN PUMPED BACK TO THE SEWER SYSTEM.	Repaired Facilities or Replaced Defect	NA	REPAIRED THE BROKEN MAIN.	NA	08/14/2024 10:35	THE CONSTRUCTION CREW WAS WORKING ON THE MAIN WHEN THE MAIN BROKE CAUSING AN OVERFLOW FROM THE TRENCH.	N	NA											N												NA	
5R	5SSO10843	Active	Portola CS	Portola City	896068	1.2	Certified	Jared Recasens	Chief Operator		27-AUG-24	27-AUG-24	Monthly Category 3 Spill	289 E. Quincy	08/05/2024 10:37	08/05/2024 11:15	08/05/2024 11:45				single appearance point out of manhole, spill water soaked into dirt proximal to manhole.	39.81261	-120.46633	Manhole			125	approximately 12 -15 feet around the manhole, soaked into soil. Used a bucket to capture as much as possible and pour back into manhole that was no longer overflowing.	N						15	Unpaved Surface		area approximately 12 feet in diameter around manhole.										08/05/2024 11:45	Visual observation, Spill volume estimation guide provided by CaRWQCB.	wrist watch and notepad.	Debris-Rags; Fats, Oil and Grease (FOG)		Gravity Mainline		Polyvinyl Chloride (PVC)		40	NONE	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below)		Used bucket to capture pools spill water and poured back into sewer system, area disinfected using 12% bleach.	Added Sewer to Preventive Maintenance Program; Post Spill CCTV		Increased patrol of the area, will jet as needed.		08/05/2024 12:00	Determined to be baby wipes and grease.		NONE	08/05/2024 12:00														N/A	SEE 20.b	AS NEEDED	N/A	N/A	N/A	N/A	What?	NONE	
7	7SSO10535	Active	Coachella Valley Water District CS	Coachella Valley WD	896079	1.1	Certified	Luis Torner	Wastewater Operations Manager		22-AUG-24	22-AUG-24	Monthly Category 3 Spill	Burr SFM AV1	07/23/2024 15:47	07/23/2024 16:02	07/23/2024 15:30				See Attachment 	33.741273	-116.259351	Other (specify below)	Air Relief Valve 	0	707	See Attachment 	N						707	Unpaved Surface		See Attachment 	Y	33.741273	-116.259351							07/23/2024 16:04	Measured Volume: See Attachment 	(9�) x (5�) x (0.125�)= 5.6�ft x 7.48 = 42.07 gallons (32�) x (12�) x (0.208�)= 79.87�ft x 7.48 = 597.44 gallons (4.5�) x (4�) x (0.5�) =9�ftx7.48 = 67.32 gallons Total Gallons: 706.84 gallons (Total rounded up to 707 gallons)	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure; Debris-wipes/Non-disposables		Air Relief Valve (ARV)/ Blow-Off Valve (BOV)		Other (specify below)	Stainless Steel 	8	See Attachment 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow		See Attachment 	Other (specify below)	Debris removed from asset and restored to normal operations. 	See Attachment 		07/23/2024 18:47	See Attachment 		Not Applicable 	07/23/2024 18:47														Not Applicable	Not Applicable 	No	Not Applicable 	Air relief valve was inspected, cleaned and placed back in service.	Not Applicable 	Not Applicable 	See Attachment 	Not Applicable 	
8	8SSO10560	Active	Riverside City CS	Riverside City	896081	1.5	Certified	Kevin Street	Wastewater Operations Manager	16-AUG-24	28-AUG-24	28-AUG-24	Category 1 Spill	Sunbeam Dr & Natalie Lane	08/14/2024 11:16	08/14/2024 11:32	08/14/2024 11:00	08/14/2024 12:45	24-4592		Sewage spillage from a manhole at slow rate. Estimated 2 gallons per minute for 45 minutes.  Longitude: 117.35241 W Latitude: 33.93363 N.	33.93363	117.35241	Manhole			90	Spill went into catch basin and through the storm drainpipe into a drainage area.	Y	24  Storm drain pipe leading into the drainage area.	85	5	Photographs attached	0	85	Drainage Conveyance System		Spill appeared from manhole on street - meandered down gutter and into catch basin.  Catch basin discharged through a 24  reinforced concrete pipe into a vegetated ravine which had part of a recent wildfire in the area.	Y	33.93356	-117.35385							08/14/2024 13:50	Estimated 2 gallons per minute for 45 minutes of spill and as confirmed by complainant information. 	Visual observations. Limited amount and limited depth of surface flows and asphalt staining. Visual observation of water captured in catch basin. 	Root Intrusion		Gravity Mainline		Vitrified Clay		38	Minimal. Storm drain outlet heavily impacted with roots which resulted in flows being largely contained within the storm drain pipe. Small pooling of water within the bottom of the channel (approximately 5-10 gallons) water absorbed with absorbent socks and soil removed via vacuum. 	N	Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Containment established at storm drain outfall. Street and gutter rinsed. Rinse water collected via vacuum truck. Storm drain system flushed with approximately 200 gallons of water. Surfaces publicly accessible disinfected with lysol (2 gallons via hudson sprayer) 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Post Spill CCTV	Roots cleared from line using root cutting nozzle. 	In 8 weeks will apply root control foaming agent. CCTV inspection in 6 months with a follow-up cleaning/root removal if necessary. 	8 weeks - root control foam 6 months - CCTV inspection Secondary cleaning if needed 	08/14/2024 16:00	CCTV inspection identified heavy root intrusion into sewer main line. Line thoroughly cleaned once flow was adequately restored. Line scheduled for root treatment and secondary CCTV inspection and cleaning if needed  	N			Unnamed wash	Wash		N/A	None, dry-recently burned ravine	Other (specify below)	Not readily accessible	N/A	0	N	N	N/A	N/A										
5S	5SSO11433	Active	City of Stockton MUD CS	Stockton City MUD	896096	1.1	Certified	Dagmara Saini	Program Manager III		24-SEP-24	24-SEP-24	Monthly Category 3 Spill	513 N CENTER ST	08/15/2024 18:00	08/15/2024 18:30	08/15/2024 17:30				 See Attachment  Spill location	37.95765	-121.29328	Lateral Clean Out (Private)			600	 See Attachment 	Y	Entered the storm DI on the Fremont street side of the spill of the address	600				600	Drainage Conveyance System; Street/Curb and Gutter (2 3)		Spill over flowed from property line CO and spilled over sidewalk into the gutter then into the storm DI which flows into the storm system that eventually flows into Mcleod Lake										08/15/2024 18:40	 We used a spill volume calculator based on the measurements of the spill captured in the curb and gutter. And any areas impacted by the spill.  The spill start and end time are based on the time the spill was reported and the time we were able to stop the spill	The spill start and end time are based on the time the spill was reported and the time we were able to stop the spill.  	Construction Diversion Failure; Debris-General		Lower Lateral		Vitrified Clay		124	None	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		 Used Hydro truck to clean and vacuum the impacted area of the spill. Vacuumed out a full load of water approximately 2500 gallons from storm MH that was surcharged due to high tide there for minimizing the spill impact 	Inspected Sewer Using CCTV to Determine Cause		CCTV the Sanitary Lateral and implement any repairs or adjustments to a PM (if applicable) that are needed.		08/15/2024 20:00	Upon further investigation it was determined the lower lateral is in need of repair. And is on a Schedule. 		Still ongoing efforts to determine cause of the blockage	10/31/2024 15:00														None	None	None	None	Ongoing inspections	None	None	Cleared the Lateral to minimize the impacted area of the spill. Used Hydro truck to clean and vacuum the impacted area of the spill. Used Hydro truck to vacuum out storm MH in a surcharged storm line due to high tide. 	Still ongoing efforts to determine cause of the blockage	
7	7SSO10506	Active	Alan Horton CS	Mission Springs Water District	896097	1.1	Certified	Lee Boyer	Chief Plant Operator 		20-AUG-24	20-AUG-24	Monthly Category 3 Spill	Project 37 Easement	08/02/2024 07:57	08/02/2024 08:20	08/02/2024 07:45				See Attached  Question 6 Spill Origination 	33.942384	-116.479573	Gravity Mainline	N/A	Cover of man hole had been removed.	950	See attached  Question 8 Spill Boundaries 	N	N/A	0				0	Unpaved Surface	N/A	See Attached  Question 11b Spill Destination 	Y	33.941289	-116.479629							08/02/2024 10:21	Spill was calculated using the flow leaving the manhole.	Spill was calculated using the flow leaving the manhole.	Vandalism (specify below)	N/A	Gravity Mainline	N/A	Vitrified Clay	N/A	22	Spill covered a down gradient area between 33.942384/-116.479573 and 33.941289/-116.479629.  Most flow was absorbed and percolated in the sand easement in the sewer mainline is located in.  All debris and area were cleaned up and disposed of properly. 	N	Cleaned Up (specify below)	N/A	See Attached  Question 19b Spill Cleanup 	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance	N/A	This spill was caused by vandalism from homeless people in the area.  The scheduled easement check and inspection will now occur quarterly basis to ensure manholes are not used to dumb trash or other items within them.		08/03/2024 12:24	See Attached  Detailed Narrative 		This spill was caused by vandalism from homeless in the area dumping trash into the manhole causing a blockage in the mainline system. 	08/03/2024 12:24														N/A	The scheduled easement check and inspection will now occur quarterly basis to ensure manholes are not used to dumb trash or other items within them.	This has been added in our workorder management software as a quarterly inspection to ensure that the manhole or not vandalized.	Easement was rehabbed and maintained for easy truck access to the manholes. 	All manholes have been inspected in the area for other vandalism. 	N/A	This has been added in our workorder management software as a quarterly inspection to ensure that the manhole or not vandalized.	All trucks have now carry toe chains to help them be pulled through tough areas of sand such as this easement area. 	This spill was caused by vandalism from homeless in the area dumping trash into the manhole causing a blockage in the mainline system. 	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	896100	1.1	Certified	Kent Vian	Asst. Deputy Director		21-AUG-24	21-AUG-24	Monthly Category 3 Spill	NOT-40201142158 3015 L ST.	08/15/2024 16:48	08/15/2024 17:13	08/15/2024 16:48				THE SPILL ORIGINATED FROM A BROKEN 6  SEWER PIPE UNDER A HOUSE	32.70723	-117.12916	Gravity Mainline; Manhole	N/A	NOT APPLICABLE	112	THE SPILL BOUNDARIES WERE FROM THE BROKEN PIPE UNDER THE TO THE UPSTREAM MANHOLE TO THE CURB AND GUTTER TO THE STORM DRAIN WERE IT SETTLED AND WAS CLEANED UP AND VACTORED.	N	NOT APPLICABLE	0				60	Paved Surface; Street/Curb and Gutter (2 3)	NOT APPLICABLE	THE SPILL DESTINATION CAME OUT OF MANHOLE 393 WENT SOUTH DOWN ALLEY AND HEADED NORTH TO STORM DRAIN LOCATED ON 30TH AND K ST.	Y	32.7086	-117.12339							08/15/2024 17:44	THE SPILL VOLUME ESTIMATIONS WERE CALCULATED USING THE VISUAL CALCULATED METHOD.	THE SPILL START TIME WAS THE TIME THE CUSTOMER CALLED STATION 38 AND THE SPILL END TIME WAS THE TIME CREWS VISUALLY SAW THE SPILL STOP.	Pipe Structural Problem/Failure - Controls	NOT APPLICABLE	Gravity Mainline	NOT APPLICABLE	Vitrified Clay	NOT APPLICABLE	72	THE IMPACTS OF THE SPILL WERE TO THE STREET, CURB AND GUTTER , STORM DRAIN AND UNDER HOUSE.	N	Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	NOT APPLICABLE	THE SPILL RESPONSE ACTIVITIES WERE IMMEDIATELY TO CONTAIN THE SPILL USING A VACTOR TRUCK AND CAPTURE FROM THE UPSTREAM MANHOLE USING THE VACTOR TUBES PUT TOGETHER BY THE CREWS THEY KEPT THAT PORTION OF THE JOB UP UNTIL CONSTRUCTION CREWS WERE ABLE TO COME OUT AND MAKE REPAIRS ON THE BROKEN SEWER MAIN.	Repaired Facilities or Replaced Defect	NOT APPLICABLE	THE SPILL CORRECTIVE ACTION WAS TO ISOLATE ANDIVERT THE FLOW UNTIL THE CONSTRUCTION SECTION COULD MAKE THE REPAIR ON THE DEFECTIVE SECTION OF THE SEWER PIPE.		08/15/2024 17:44	THE CAUSE OF THE SPILL WAS A BROKEN PIPE.		NOT APPICABLE	08/19/2024 12:30														NONE	UNKNOWN AT THIS TIME	NOT APPICABLE	NOT APPICABLE	THE CONSTRUCTION CREW IS PLANNING TO MAKE THE NECESSARY IMMEDIATELY.	NOT APPICABLE	NOT APPICABLE	NOT APPICABLE	NOT APPICABLE	
3	3SSO10265	Active	El Estero CS	Santa Barbara City PWD	896104	1.3	Certified	Esteban Zambrano	WWC Superintendent 		28-AUG-24	28-AUG-24	Monthly Category 3 Spill	3127 Argonne Cir	07/28/2024 08:52	07/28/2024 09:00	07/28/2024 08:20				Spill discharge point from MH-D04-076 in front of property 3127 Argonne Circle and from a private cleanout at 326 Argonne Circle. 	34.44467	-119.73163	Lateral Clean Out (Private); Manhole		Private cleanout at 326 Argonne Circle.	941	On July 28, 2024, approximately 941 gallons of wastewater discharged from manhole MH-D04-076, flowing towards the street and curb. Emergency response measures allowed for the recovery of 890 gallons before it could enter the storm drain system. However, 50 gallons reached the storm drain inlet, but was successfully contained and recovered using a vacuum truck,. Debris and dirt in the storm drain system assisted with containment.  One gallon discharged into the soil via a private  cleanout at 326 Argonne Circle and was not recovered. The report includes specific coordinates related to various points of the spill:    Sections 11.d. & 11.e.: Location of spill appearance. Sections 11.f. & 11.g.: Location where 890 gallons were recovered before entering the storm drain. Sections 11.h. & 11.i.: Location of the containment and recovery of 50 gallons in the storm drain channel. Sections 11.j. & 11.k.: Location of 1 gallon that saturated into the soil.	Y	1. Entry Location: Storm Drain Appearance Point 3211 Calle Cedro (CB-D04-09): 2. Recovery Location: 3210 Calle Rosales (P-D04-40):  Please see attachements:	50				940	Drainage Conveyance System; Other (specify below); Street/Curb and Gutter (2 3)	1 gallon saturated into soil at 326 Argonne Circle. 	On July 28, 2024, approximately 941 gallons of wastewater discharged from manhole MH-D04-076, flowing towards the street and curb. Emergency response measures allowed for the recovery of 890 gallons before it could enter the storm drain system.  However, 50 gallons reached the storm drain inlet, but was successfully contained and recovered using a vacuum truck,. Debris and dirt in the storm drain system assisted with containment.  One gallon discharged into the soil via a private  cleanout at 326 Argonne Circle and was not recovered. The report includes specific coordinates related to various points of the spill:      Sections 11.d. & 11.e.: Location of spill appearance. Sections 11.f. & 11.g.: Location where 890 gallons were recovered before entering the storm drain. Sections 11.h. & 11.i.: Location of the containment and recovery of 50 gallons in the storm drain channel. Sections 11.j. & 11.k.: Location of 1 gallon that saturated into the soil.  	Y	34.44466	-119.73164	34.44377	-119.73217	34.44332	-119.73249	34.44449	-119.73164	07/28/2024 09:54	The spill incident was assessed using video footage taken by the Emergency Service Worker (ESW). The spill start time was determined by interviewing a witness at 3127 Argonne Circle, who reported that the manhole was not spilling at 8:00 am but witnessed the spill at 8:30 am. After city staff reviewed the wetted area, it was determined that the spill started at 8:20 am and stopped at 9:54 am when city staff broke the plug. The video footage was reviewed with the responding team, WWC Supervisor, and WWC Superintendent and compared to pictures from the city�s SSO simulator to establish a flow rate.    The City of Santa Barbara provides SSO training using an inground simulator, calculation volumes per Sewer Spill Estimation Guide Per Orange County, and CWEA training. In addition, the city reviews every SSO with all staff to provide a training opportunity for SSO volume calculations and documentation requirements. 	The spill incident was assessed using video footage taken by the Emergency Service Worker (ESW). The spill start time was determined by interviewing a witness at 3127 Argonne Circle, who reported that the manhole was not spilling at 8:00 am but witnessed the spill at 8:30 am. After city staff reviewed the wetted area, it was determined that the spill started at 8:20 am and stopped at 9:54 am when city staff broke the plug. The video footage was reviewed with the responding team, WWC Supervisor, and WWC Superintendent and compared to pictures from the city�s SSO simulator to establish a flow rate.    The City of Santa Barbara provides SSO training using an inground simulator, calculation volumes per Sewer Spill Estimation Guide Per Orange County, and CWEA training. In addition, the city reviews every SSO with all staff to provide a training opportunity for SSO volume calculations and documentation requirements. 	Root Intrusion		Gravity Mainline		Vitrified Clay		98	On July 28, 2024, approximately 941 gallons of wastewater discharged from manhole MH-D04-076, flowing towards the street and curb. Emergency response measures allowed for the recovery of 890 gallons before it could enter the storm drain system.  However, 50 gallons reached the storm drain inlet, but was successfully contained and recovered using a vacuum truck,. Debris and dirt in the storm drain system assisted with containment.  One gallon discharged into the soil via a private  cleanout at 326 Argonne Circle and was not recovered. The report includes specific coordinates related to various points of the spill:      	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System; Returned Portion of Spill to Sanitary Sewer System		Upon arrival, ESW  quickly assessed the situation and deployed sandbags to contain the spill and minimize flow entering the storm drain system.  The standby crew arrived and restored the flow. City staff then sanitized and washed-down the spill area and recovered washed-down water in the street/curb and gutter.  Standby crew wash-down storm drain and recovered all wastewater and wash-down water.    All 940 gallons recovered. One gallon was not recovered due to saturating into the ground at 326 Argonne Circle.  Please see attachments: 	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below); Plan Rehabilitation or Replacement of Sewer	Install Smartcover Sensor at MH-D04-076	Install SmartCover at the upstream MH-D04-076		07/28/2024 15:15	See attachment. 		NA	07/28/2024 15:15														NA	NA	Install SmartCover at the upstream MH-D04-076	NA	CCTV Inspection of sewer main	NA	NA	N A	NA	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	896111	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	20-AUG-24	28-AUG-24	28-AUG-24	Category 1 Spill	East 8th Street & Park Way, Oakland Ca	08/19/2024 19:38	08/19/2024 20:20	08/19/2024 19:00	08/19/2024 21:29	24-4696		Manhole overflowing in the street, the sewage was flowing down to separate storm drains.	37.79121	-122.25554	Manhole			238	Manhole overflowing in the street, the sewage was flowing down to separate storm drains.	Y	Underground 78  storm lines named 14th Avenue creek and San Antonio.	0	187	Underground 78  storm lines named 14th Avenue creek and San Antonio.	187	51	Drainage Conveyance System; Street/Curb and Gutter (2 3)		Manhole overflowing in the street, the sewage was flowing down to separate storm drains.	Y	37.79121	-122.25554							08/19/2024 20:35	1  Pick hole x 2  height = 2.51 GPM x 95 minutes = 238 gallons. Paved surface: Puddle 20' L x 6' W x .05' D x 7.48 Gal = 45 gallons 15' L x 5' W x .01' x 7.48 Gal = 6 Gals. Recovered: 45+6= 51 Gals. Total lost in the storm drain: 238 - 51 = 187 Gals. 	Start time was based on eyewitness account. End time was based on responding sewer crew restoring the flow in the mainline.	Debris-Rags; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		99	Manhole overflowing in the street, the sewage was flowing down to separate storm drains. Sewage entered the 6.5' underground storm drain that flows to estuary.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Sewer staff washed, contained, and recovered a portion of the spill on the paved surface.	Sewer staff washed, contained, and recovered a portion of the spill on the paved surface.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Mainline has added to six-month high frequency maintenance program. WO # 1551843.	Mainline has added to six-month high frequency maintenance program. WO # 1551843.	08/26/2024 10:50	CCTV WO # 1550477, found FOG and rags to had been the potential cause of the overflow.	N			14th Avenue Creek & San Antonio	Estuary		Underground 6.5' storm line that flows to estuary.	None.	Other (specify below)	None.	N/A	0	Y	N												
2	2SSO10216	Active	West County WW District CS	West County Wastewater District	896132	1.3	Certified	Gordon Times	CSO Manager		05-SEP-24	05-SEP-24	Monthly Category 3 Spill	Richmond Country Club	08/19/2024 07:49	08/19/2024 08:14	08/19/2024 07:15				The spill came from a manhole cover on the putting green at the Richmond Country Club.	37.98577	-122.34963	Manhole			306	The spill came from a manhole cover on the putting green at the Richmond Country Club.	Y	The drainage conveyance system is a bio swale.	306				0	Drainage Conveyance System		The The spill went into a drain that leads to a bio swale.										08/19/2024 08:52	We visually observed how much was spilling, counted the connections, and timed how long it took from the start of the spill until we broke the stoppage.	The spill occurred at a country club where they are the only ones connected to the line. The staff noticed the spill shortly after they arrived to work and had not seen a spill before that. 	Debris from Lateral; Debris-Rags; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Manhole		Vitrified Clay		49	The spill impacted a small area of the putting green.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow		Our team arrived at the spill location, used our power rodder to break the stoppage. After breaking the stoppage, we washed the manhole down and rinsed the grass with clean water.	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		Our team arrived at the spill location, used our power rodder to break the stoppage. After breaking the stoppage, we washed the manhole down and rinsed the grass with clean water.		08/19/2024 09:29	This customer is the only one on this line and was the source of the stoppage.		WE want to make sure this customer is no longer allowing grease and rags to enter our line.	08/26/2024 15:00														Our environmental compliance inspectors issued a notice of violation to this customer.	The customer was advised to avoid allowing grease and rags to enter the system.	We adjusted the maintenance schedule, and advised the customer to avoid flushing rags and grease.	No rehabilitation or replacement is necessary.	The line was inspected the day of the spill.	No capital improvement is necessary for this line.	The modifications to the maintenance schedule are entered into our CMMS.	WE cleaned up the spill, mitigated the effects of the spill, and restored the flow.	WE want to make sure this customer is no longer allowing grease and rags to enter our line.	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	896136	1.1	Amended	Kent Vian	Asst. Deputy Director		30-AUG-24	30-AUG-24	Monthly Category 3 Spill	NOT-40201143860 4154 VOLTAIRE ST.	08/20/2024 19:37	08/20/2024 20:00	08/20/2024 19:39				THE SPILL ORIGINATED FROM A 8  SEWER MAIN IN FRONT OF 4154 VOLTAIRE ST.	32.74356	-117.23427	Lower Lateral (Private)	N/A	N/A	380	THE SPILL BOUDARIES WERE FROM THE SEWER MAIN THE BACKING UP INTO THE PROPERTY (4154 VOLTAIRE ST) THROUGH THERE LATERAL AND ENDING IN THE BASEMENT OF THE BUILDING.	N	NOT APPICABLE	0				0	Building or Structure	NOT APPLICABLE	THE SPILL DISCHARGE BACKED UP THROUGH THERE LATERAL FROM OUR CITY SEWER MAIN AND THE FINAL DESTINATION WAS IN THE BASEMENT OF THE PROPERTY (4154 VOLTAIRE ST.)	Y	32.74356	-117.23427							08/20/2024 20:15	THE SPILL VOLUME ESTIMATIONS WERE CALCULATED USING THE VISUAL CALCULATED METHOD.	THE SPILL START TIME WAS THE TIME THE CUSTOMER CALLED STATION 38 AND THE SPILL END TIME WAS THE TIME CREWS VISUALLY SAW THE SPILL STOP.	Fats, Oil and Grease (FOG)	NOT APPLICABLE	Gravity Mainline		Polyvinyl Chloride (PVC)	NOT APPLICABLE	72	THE IMPACTS OF THE SPILL WERE THE BASEMENT OF (4154 VOLTAIRE ST.)	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	NOT APPLICABLE	THE SPILL ACTIVITIES WERE TO IMMEDIATELY TO CONTAIN THE SPILL USING THE VACTOR TRUCK AND THE SECOND VACTOR TRUCK RESTORING THE FLOW THEN MITIGATING THE SEWER DISCHARGE CONTACTING OUR SSO INVESTIGATOR TO ASSESS THE DAMAGES TO THE PRIVATE PROPERTY GETTING OUR CONTRACTOR OUT TO LOCATION TO PERFORM CLEAN-UP OF PRIVATE PROPERTY FLUSHED 2 UP AND 2 DOWN REFFERED TO CCTV.	Post Spill CCTV	NOT APPLICABLE	THE SPILL CORRCTIVE ACTION WAS TO RESRORE FLOW CCTV SEWER MAIN AND GIVE FINDINGS TO UPPER MANAGEMENT.		08/20/2024 21:00	THE CAUSE OF THE SPILL WAS GREASE IN SEWER MAIN.		NOT APPLICABLE	08/21/2024 14:30														NONE	UNKNOWN AT THIS TIME	NOT APPLICABLE	MANAGEMAENT WILL MAKE THAT DETERMINATION	SEWER MAIN WILL BE REFFERED TO CCTV FOR FURTHER INSPECTION.	NOT APPLICABLE	NOT APPLICABLE	NOT APPLICABLE	NOT APPLICABLE	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	896147	1.2	Certified	David Leamer	Assistant Superintendent		27-AUG-24	27-AUG-24	Monthly Category 3 Spill	347007	07/30/2024 19:45	07/30/2024 20:24	07/30/2024 19:40				See Attached Spill map with Photos.	38.58333	-121.36561	Lateral Clean Out (Public); Manhole		spill from both manhole and district c/o	209	See Attached Spill Map with Photos	Y	See Attached Spill map with Photos.	202				208	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		See attached Spill Map with Photos.	Y	38.58326	-121.36564	38.58011	-121.36634					07/30/2024 20:50	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Root Intrusion		Gravity Mainline		Vitrified Clay		62	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Mainline asset was blocked by roots. The SacSewer manhole spilled onto the street, to the curb and gutter, and into the storm drain inlet at 4212 Corona Way, entering the storm drain system. SacSewer crews cleaned the affected aboveground area and recovered the spill on land using a hydro-vacuum truck. Crews flushed the affected SD system by inducing water from the SD inlet at 4212 Corona Way to the SD manhole at 825 Treehouse Lane, where the flush water was simultaneously pumped to SacSewer Manhole (332-179-1009). The SD manhole at 825 Treehouse Lane was plugged with sandbags to prevent flow from continuing through the drainage conveyance system. SacSewer returned all recovered sewage and flush water from the drainage conveyance system to the sewer system through a SacSewer manhole at 825 Treehouse Lane (332-179-1009).	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected mainline with CCTV on 8/5/24. Based on findings, SacSewer increased preventative cleaning frequency to 24 months from 48 months.		07/31/2024 07:30	Mainline asset was blocked by roots. The SacSewer manhole spilled onto the street, to the curb and gutter, and into the storm drain inlet at 4212 Corona Way, entering the storm drain system. SacSewer crews cleaned the affected aboveground area and recovered the spill on land using a hydro-vacuum truck. Crews flushed the affected SD system by inducing water from the SD inlet at 4212 Corona Way to the SD manhole at 825 Treehouse Lane, where the flush water was simultaneously pumped to SacSewer Manhole (332-179-1009). The SD manhole at 825 Treehouse Lane was plugged with sandbags to prevent flow from continuing through the drainage conveyance system. SacSewer returned all recovered sewage and flush water from the drainage conveyance system to the sewer system through a SacSewer manhole at 825 Treehouse Lane (332-179-1009).		N/A	07/31/2024 07:30														N/A	SacSewer increased preventive cleaning frequency from 48 months to 24 months.	SacSewer increased preventive cleaning frequency from 48 months to 24 months.	N/A	SacSewer inspected mainline with CCTV on 8/5/24	N/A	SacSewer increased preventive maintenance frequency on 8/21/24	N/A	N/A	
4	4SSO10443	Active	Whittier City CS	Whittier City	896172	1.5	Certified	Kyle Cason	Director	23-AUG-24	29-AUG-24	29-AUG-24	Category 1 Spill	Whittier Blvd and Palm Ave	08/21/2024 22:35	08/21/2024 23:00	08/21/2024 22:30				The spill occurred at Whittier Blvd and Palm Ave at MH346. 	33.98359	-118.05466	Gravity Mainline; Manhole			200	SSCSC/CWEA MH Overflow Gauge (MH 346 5gpm x 40 min = 200 gal	Y	storm drain	0	200	No photos. 	0	0	Drainage Conveyance System		Spill flowed into storm drain approximately 40 feet west of MH 346	Y	33.98359	-118.05466							08/21/2024 23:10	SSCSC/CWEA MH Overflow Gauge (MH 346 5 gpm x 40 Min = 200 gal)	From notification by PD dispatch to the time blockage was released. 	Debris from Construction		Gravity Mainline		Vitrified Clay		50	spill onto street into storm drain	N	Cleaned Up (specify below); Restored Flow		Crews immediately jetted sewer main line until blockage was relieved. Crews then treated the area with disinfectant. 	Inspected Sewer Using CCTV to Determine Cause		CCTV location to determine cause then make necessary repairs if necessary. 	None	08/21/2024 23:10	CCTV was performed. Blockage was caused by construction debris. A piece of asphalt and pipe were retrieved at the MH. 	N			Coyote Creek	Other (specify below)	Coyote Creek	Dry river bed	None	Other (specify below)	None	None	0	N	N												
6B	6SSO11151	Active	June Lake PUD CS	June Lake PUD	896179	1.2	Amended	Mamadou Diallo	CPO	23-AUG-24	30-AUG-24	30-AUG-24	Category 1 Spill	19 Willow	08/20/2024 21:57	08/20/2024 19:30	08/20/2024 19:30	08/20/2024 22:53	24-4719		37.764389, -119.104417 ; Location where spill entered Reversed Creek	37.764389	-119.104417	Gravity Mainline; Manhole		Spill appearance point into Reversed Creek from the manhole. Manhole became overwhelmed which caused the spill to overflow into the creek.	5130	Sewer main pipe was damaged during construction activities. Debris entered damaged section of the pipe which reduced flow within the sewer main. This break caused a slow fill of the excavation area. Manhole downstream became overwhelmed with dirt, debris, and wastewater which caused an overflow/spill into the creek.	N				Pictures of manhole that became overwhelmed, Spill point at Reversed Creek 	850	4280	Surface Water		Sewer manhole to Reversed Creek	Y	37.764261	-119.104299							08/20/2024 19:01	Spill duration time and volume dimensions between the manhole were the discharge occurred and entrance point of the creek	Contract worker estimations of duration of spill time	Damage by Others Not Related to Collection System Construction/Maintenance; Debris from Construction		Gravity Mainline; Manhole		Concrete		35	Still an ongoing investigation to determine the full impact. Water quality monitoring samples have been collected, waiting for results.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Top soil removal. Vactoring	Brought in Vactor from nearby district to remove wastewater from breakpoint. Tried to locate additional vactor to respond. Conducted rodding. Placed sandbags and straw waddles around breakpoint. Enlarged excavation area to allow for additional capacity/volume. Maintained communications. Contacted county and state OES. Topsoil removal and disposal.	Repaired Facilities or Replaced Defect		Unforeseeable event caused by a homeowner's contractor/construction activities. Broken pipe was repaired and inspected. Vactoring.	NA	08/20/2024 22:53	Conducted interview with on-site contractors/workers to determine that they had broken our sewer main.	Y	Water quality monitoring activities of Reversed Creek	09/30/2024 16:23	Reversed Creek	Stream/Creek		Small Creek	None observed	Temporary Restricted Use		NA	1	N	Y	Release point, upstream and downstream	Total Coliform, E. Coli, and Nitrate									Water quality monitoring activities of Reversed Creek	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	896184	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		02-OCT-24	02-OCT-24	Monthly Category 3 Spill	7167 West Summitrose Street	08/24/2024 12:07	08/24/2024 12:51	08/24/2024 12:07				The initial crew arrived at 12:51 P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. 	34.259695	-118.288176	Inside Building or Structure	None	None	333	Photos attached	N	None	0				0	Unpaved Surface		The entire back up amount soaked into the ground.	Y	34.259695	-118.288176							08/24/2024 13:09	The SSO volume was estimated utilizing a standardized template which calculates the volume by using dimensional analysis.	VOLUME OF A SPILL CONTAINED IN A RECTANGULAR AREA LENGTH4FEETBATHROOM WIDTH6FEET DEPTH0.3INCHES0.0250FEET VOLUME0.60FT34 VOLUME OF A SPILL CONTAINED IN A RECTANGULAR AREA LENGTH12FEETCRAWL SPACE WIDTH12FEET DEPTH0.3INCHES0.0250FEET VOLUME3.60FT327 VOLUME OF A SPILL CONTAINED IN A RECTANGULAR AREA LENGTH20FEETFRONT YARD 1 WIDTH0.5FEET DEPTH0.3INCHES0.0250FEET VOLUME0.25FT32 VOLUME OF A SPILL CONTAINED IN A RECTANGULAR AREA LENGTH8FEETFRONT YARD 2 WIDTH1FEET DEPTH0.3INCHES0.0250FEET VOLUME0.20FT31 VOLUME OF A SPILL CONTAINED IN A RECTANGULAR AREA LENGTH40FEETBACKYARD WIDTH40FEET DEPTH0.3INCHES0.0250FEET VOLUME40.00FT3299 TOTAL: 333 GALLONS	Root Intrusion		Gravity Mainline		Vitrified Clay		63	It was estimated that approximately 333 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		The crew removed the blockage, and the backup ceased at 1:09 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 1:09 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.		08/24/2024 13:09	On Saturday, August 24, 2024, at 12:07 PM, the Clean Water Conveyance Division (CWCD) received a report of sewer trouble at 7167 West Summitrose Street (TG 504-A3). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 1:09 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 333 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.   		Not At This Time.	08/24/2024 13:09														None at this time.	In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	None at this time.	The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	On Saturday, August 24, 2024, at 12:07 PM, the Clean Water Conveyance Division (CWCD) received a report of sewer trouble at 7167 West Summitrose Street (TG 504-A3). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 1:09 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 333 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.   	Not At This Time.	
2	2SSO10170	Active	Richmond City CS	Richmond City	896185	1.3	Certified	Mary Phelps	Water Resource Division Manager		26-AUG-24	26-AUG-24	Monthly Category 3 Spill	331 W. Bissell 	08/24/2024 15:26	08/24/2024 16:20	08/24/2024 15:00				See attachments	37.93445	-122.37302	Gravity Mainline; Manhole			212	See attached photos	N						212	Street/Curb and Gutter (2 3)		Gutter of 359 W. Bissell Ave Richmond CA (Lat 37.93483 long. -122.37320)	Y	37.93445	-122.37302							08/24/2024 17:12	Spill volume calculated based on operator training, and experience. Estimation based on intermittency of discharge and average household water use and number of occupants over given time. 	Citizen interviews, and estimations. 	Debris-Rags; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		35	Paved gutter along W. Bissell towards 359 W. Bissell. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Cleared blockage (Rags and Grease) and restored flow. 	Added Sewer to Preventive Maintenance Program	Provided outreach to contributing properties of sewer main on FOG and related BMP's	Hydro jetted gravity main to remove rags and grease.		08/24/2024 19:00	Rags and Grease were discovered during the gravity sewer main and are suspected of the cause of the spill from private lateral.		NA	08/24/2024 19:00														NA	NA	Hydro jet line with in a 4-year period. 	NA	NA	NA	NA	NA	NA	
5F	5SSO10776	Active	Wasco, City Of CS	Wasco City	896186	1.4	Certified	Alberto Martinez 	Deputy PW Director 		24-SEP-24	24-SEP-24	Monthly Category 3 Spill	Greenbrier Ct and Cisco Way.  MH 775.	08/25/2024 11:52	08/25/2024 12:50	08/25/2024 10:30				On 8/25/24 I received a call from water department operator informing me that he had received a call regarding a possible water leak, but upon arrival he noticed sewer coming out of vent hole on manhole #775 and immediately contacted wastewater collection crew at 11:54 AM.  Crew arrived to spill event location at 12:50 PM and cleared stoppage at 1:01 PM.  Blockage appears to be caused by rags, wipes and grease wrapped around a small stick.  The second appearance point was a clean out on a private lateral on 1987 Greenbrier Ct. 	35.58087	-119.34138	Lateral Clean Out (Private); Manhole		Clean out on private lateral at 1987 Greenbier Ct.	958	Spill traveled 300 ft south on curb and gutter and discharged into stormwater catch basin on south end of Greenbrier Ct.  Stormwater system on that location discharges to retention basin on corner of Filburn St and Central Ave. 	Y	Spill reached stormwater drainage conveyance system that leads to stormwater retention basin located on corner of Filburn St. and Central Ave.	70				70	Drainage Conveyance System; Groundwater Infiltration Basin or Facility		Spill traveled through curb and gutter into stormwater catch basin located at the south end of Greenbrier Ct.	Y	35.58004	-119.34141	35.58024	-119.35629					08/25/2024 13:01	Staff used the upstream connections method to estimate the spill volume.  There are 38 connections up stream and a typical single family residential parcel may discharge 8 to 10 gallons of wastewater per hour. The spill lasted 2 hours and 31 minutes.  38 connections X 10 GPH X 2.52 Hours = 958 Gallons	Upon arrival to site, I spoke to resident on 1987 Greenbrier Ct and stated that he had left his home to run an errand at around 10:00AM and did not notice any water coming out of manhole or on curb and gutter.  Resident returned home 30 minutes later, and that is when he noticed water coming out of manhole but it had not reached portion of curb and gutter in front of his home.  Using the information provided by resident we assumed that spill started at 10:30 AM.	Debris-General; Other (specify below)	Wooden stick was recovered from manhole. Stick was wrapped in wipes, grease and other debris	Gravity Mainline		Polyvinyl Chloride (PVC)		30	No major impact was caused by spill.	N	Cleaned Up (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Affected areas were cleaned and disinfected.	Wastewater collection crew focused on clearing stoppage and recovering sewage as it entered the stormwater system.  Manhole for stormwater system was about 10 feet away from wastewater manhole allowing them to jet sewer line and recover portion on spill entering stormwater system.	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Line was inspected using CCTV and line is in good condition, staff does not foresee a reoccurring issue on this location.		08/25/2024 14:30	After blockage was cleared, staff located a small tree branch wrapped in debris at the bottom of downstream manhole, we identified the branch to be the cause of the blockage since CCTV inspection of sewer line did not show defects on line.		CCTV inspection was performed on spill location and no defects were found.	08/27/2024 09:00														None	Maintenance program will not be modified, line was inspected using CCTV and no defects were found.	Preventative maintenance schedule will not be adjusted.	None.	Line was inspected and no defects were found.	None	No modifications needed.	None	CCTV inspection was performed on spill location and no defects were found.	
1	1SSO10012	Active	Cotati City CS	Cotati City	896187	1.3	Ready to Certify						Monthly Category 3 Spill	7560 Commerce Blvd.	08/25/2024 21:40	08/25/2024 21:55	08/25/2024 21:30				from toilet in back of detached garage/storage building	38.3333	122.712	Inside Building or Structure; Lower Lateral (Private)			50	spill occurred in garage/storage building on to concrete floor, some pooling within an approx. 10ftx10ft area  	N						10	Building or Structure		on to concrete floor, an approx. 10ftx10ft area, some of the spill seemed to run back into private sewer line under toilet where spill occurred										08/25/2024 22:20	visual and measurement taken in square feet, depth of water in deepest area	time of first notification, onsite time, time spill issue was corrected (cleared) spoke to notifying person or resident	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Other (specify below)	Asbestos Concrete	60	damage to some stored items that are in garbage bags in garage. Do not know contents	N	Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Restoration Company was notified and on site that evening for clean up and restitution on property and also returned following day 	Determined location of parcel blockage, cleared gravity sewer main using Hydro Flusher, removal of bundles of wipes/paper with Vac and re-run sewer main after return of normal flow Contained on property/garage area, restoration company on site (see above)	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below)	Discuss/plan with Engineering possible actions, private/public check valve etc	Discuss/plan with Engineering possible actions, private/public check valve etc		08/26/2024 11:23	Grease/Wipes		CCTV	09/30/2024 12:00														n/a	Discuss/plan with Engineering possible actions, private/public check valve etc	use of different nozzles during routine cleaning	not planned at this time	follow up with CCTV	not planned at this time	review	review	CCTV	
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	896196	1.1	Certified	Daniel Whitlock	Manager		18-SEP-24	18-SEP-24	Monthly Category 3 Spill	Ceasar Chavez and Indiana 	08/21/2024 09:25	08/21/2024 09:35	08/21/2024 09:17				Spill discharged from the manhole for approximately 1 minute and flowed to a french drain connected to the combined sewer. Spill was 100% contained and returned to combined system.	37.74935	-122.39146	Force Main; Manhole			400	Spill discharged from the manhole for approximately 1 minute and flowed to a french drain connected to the combined sewer. Spill was 100% contained and returned to combined system.	N						400	Other (specify below); Paved Surface	Combined Sewer System	Spilled out of manhole N-331146 in muni yard on Indiana and Ceasar Chavez. Spill flowed down into a drain that led to the combined system and was fully contained.	Y	37.74932	-122.39132							08/21/2024 09:17	Rate of flow and eyeball based off of video taken by employee at the muni yard.	Rate of flow and eyeball based off of video taken by employee at the muni yard.	Construction Diversion Failure; Operator Error (specify below)	Construction workers from Anvil removed manhole N-331159 which caused an airpocket.	Force Main		Other (specify below)	Steel	50	Impact was minimal since the overflow only ran for about 1 minute and was contained b the drain connected to the combined culvert.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below)	Returned all spill to combined system	Spill was no longer occuring when vactor trucks arrived. Crews washed and disinfected spill area.	Other (specify below)	N/A	N/A		08/21/2024 12:15	Upstream water released because manhole N-331159 was opened during construction work from Anvil Construction group. This caused an air pocket in force main P-99149 which led to water to spill out of manhole N-331146.		None	08/20/2024 14:35														N/A	N/A	N/A	None	N-331146 and P-99149	None	N/A	N/A	None	
5R	5SSO10843	Active	Portola CS	Portola City	896197	1.1	Certified	Jared Recasens	Chief Operator		27-AUG-24	27-AUG-24	Monthly Category 3 Spill	717 Ellen Ave.	08/06/2024 08:30	08/06/2024 08:50	08/06/2024 08:00				NE corner of dirt intersection of N. 5th st. and Ellen Ave.	39.81666	-120.46308	Manhole			65	contained in a dirt swale west of the intersection.	N						40	Unpaved Surface		approximately 15 feet west of the manhole.										08/06/2024 09:15	Visual observation, spill estimate guide provided by CaRWQCB.	wrist watch and notepad.	Debris-wipes/Non-disposables		Gravity Mainline		Polyvinyl Chloride (PVC)		30	No impact apparent, used vacuum equipment to recover majority of spill, used 7% bleach solution to disinfect area.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	used vacuum equipment to recover majority of spill, disinfected area.	Used sewer jetting machine to clear stoppage, used vacuum equipment to recover majority of spill, bleach disinfected the area, used sewer camera to inspect gravity mainline for defects, none found.	Post Spill CCTV		increased inspection of manhole.		08/06/2024 10:15	Inspected mainline with sewer camera, found no defects in the mainline, spill was determined to be baby wipes that had built up in the line resulting in a stoppage.		none	08/27/2024 08:36														none	increased inspection frequency.	monthly inspection.	not needed.	none	none	none	none	none	
2	2SSO10202	Active	Tamalpais CSD CS	Tamalpais Community San Dist	896198	1.2	Certified	Michael H Quecke	Wastewater & Facilities Superintendent		27-AUG-24	27-AUG-24	Monthly Category 3 Spill	381 County View Drive	08/24/2024 18:26	08/24/2024 19:20	08/24/2024 14:05				spill appeared at MH6.075	37.8721766	-122.5328587	Manhole			315	photos at 	N						0	Unpaved Surface		spill is shown to have traveled from manhole down slope and end approximately 40 ft away	Y	37.87216	-122.5328519							08/24/2024 19:35	calculations for spill volume were based on appearance point at the manhole. due to flow appearance at cover we estimated that 1.5gpm of flow was shown and due to total area of where spill encompassed, and interview with reporting party, we estimated the start time was approximately 210 minutes prior to end of spill time.	estimated spill start time was determined based upon area of coverage that spill encompassed and interview with reporting party who stated they smelled a sewer odor a couple hours prior when they were in their backyard.	Root Intrusion		Manhole; Other (specify below)	OUTLET AT MANHOLE BASE	Other (specify below)	HDPE	2	impact area was confined to yard/land on slope extending approximately 40 feet away.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow		SPILL AREA WAS CLEANED UP BY REMOVAL OF SOLIDS/PAPER FROM AREA BY CONTRACTOR 	Other (specify below)	draft letter for residents about lateral cleaning and potential dangers 	steps were already taken to reduce SSO occurrences. this entire section was replaced during capital improvement in February 2022. this occurrence was determined to be caused by roots from lateral.			August 24, 2024 - Received call 18:26 via answering service due to report of overflow at manhole near resident backyard. called resident to confirm location, details and address of SSO. arrived at 19:20 to view area spill encompassed. then deployed catch equipment at downstream manhole (MH6.074) to catch debris from traveling further. pulled cover at MH6.075 and used hand equipment to dislodge debris from manhole outlet. overflow ended at 19:35. debris removed from MH6.074 was determined to be root slug which appears to be from lateral(unable to determine whos's lateral). area is now scheduled for maintenance to insure no remaining debris is within sewer collection system. 		possible letter to residents connected to this portion of sewer related to discussion of sewer SSO, their occurances and how to prevent them. this idea has to be discussed with General Manager of district.	08/30/2024 15:00														none taken at this time. 	this area pipe segments was previously replaced during capital improvements in 2022.	no adjusted schedule	sewer replaced in February 2022	sewer replaced in February 2022	this area was completed in 2022.	area is now scheduled for maintenance to insure no remaining debris is within sewer collection system. plans to draft resident letter for distribution to residents within this area. 	contractor will clean this area to insure no remaining roots/debris are within sewer.	possible letter to residents connected to this portion of sewer related to discussion of sewer SSO, their occurances and how to prevent them. this idea has to be discussed with General Manager of district.	
2	2SSO10172	Active	Ross Valley Sanitary District CS	Ross Valley SD	896204	1.4	Certified	Paul Bruemmer	O&M Manager 		30-AUG-24	30-AUG-24	Monthly Category 3 Spill	43 Laurel Grove Ave, Ross, CA	08/14/2024 09:02	08/14/2024 09:27	08/14/2024 08:45				The spill originated approximately 40'down stream of node R420.030 and spilled out of the node R420.030.  	37.9652	-122.55412	Gravity Mainline		n/a	117	The spill exited the pipe via node R420.030, traveled approximately 50' down the asphalt, then traveled approximately 25' in the dirt before entering an open V- ditch for 25', finally exiting through a corrugated storm pipe into a dirt area . 	Y	An open dirt V- ditch for 25', finally exiting through a corrugated storm pipe into a dirt area.	117				117	Drainage Conveyance System; Paved Surface; Unpaved Surface		The spill exited the pipe via node R420.030, traveled approximately 50' down the asphalt, then traveled approximately 25' in the dirt before entering an open V- ditch for 25', finally exiting through a corrugated storm pipe into a dirt area. 	Y	37.96527	-122.55354	37.96515	-122.55361					08/14/2024 09:54	Initially , eyeball method and later confirmed using flow rate and spill volume RVSD MH and Node reference spill chart. 	Eye witness report and spill estimation training to determined a start time. The spill end time was determined when the blockage was broken and the spill stopped exiting the collection system. 	Debris-wipes/Non-disposables; Pipe Structural Problem/Failure - Installation; Root Intrusion		Gravity Mainline		Vitrified Clay		124	The spill had no impact to customers or the environment. spill was fully captured 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Upon confirmation of District owned spill, a combination sewer cleaning truck was deployed to break the blockage and clean up the spill. The spill in the asphalt was washed down and vacuumed up, and the V-ditch was vacuumed up as well as the final destination capturing the entirety of the spill. 	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer; Post Spill CCTV		The sewer main was thoroughly cleaned an CCTV inspected post spill. Operations department is working with engineering department to plan a CIP project to replace the 124 year old main and add a manhole as well. 		08/14/2024 13:00	The cause of the spill was determined to be from several different factors including, a sag in the mainline, debris/wipes, and root intrusion. 		Planning stages of CIP rehab with engineering department. 	08/30/2024 10:00														n/a	Replacing 124 year old sewer main and add a manhole. 	No, flushing schedule will remain the same. 	Operations department is working with engineering department to plan a CIP project to replace the 124 year old main and add a manhole as well. 	The sewer main was thoroughly cleaned an CCTV inspected post spill. Operations department is working with engineering department to plan a CIP project to replace the 124 year old main and add a manhole as well. 	In planning. 	n/a	none	Planning stages of CIP rehab with engineering department. 	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	896209	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	27-AUG-24	04-SEP-24	04-SEP-24	Category 1 Spill	El Centro Ave. & Glendome Circle, Oakland Ca	08/25/2024 11:46	08/25/2024 12:33	08/25/2024 11:16				Manhole overflowing in the street, the sewage was flowing to the gutter and into a separate storm drain.	37.81264	-122.21855	Manhole			232	Manhole overflowing in the street, the sewage was flowing to the gutter and into a separate storm drain.	Y	18  storm line that flows to a stream named Wildwood & Trestle Glen creeks.	0	232	Stream named Wildwood & Trestle Glen creeks.	232	0	Drainage Conveyance System; Street/Curb and Gutter (2 3)		Manhole overflowing in the street, the sewage was flowing to the gutter and into a separate storm drain.	Y	37.81264	-122.21855							08/25/2024 13:12	116 minutes x 2GPM=232 Gallons.	Start time was based on eyewitness account. End time was based on responding sewer crew restoring flow.	Damage by Others Not Related to Collection System Construction/Maintenance	Asphalt inside the mainline.	Gravity Mainline		Vitrified Clay		99	Manhole overflowing in the street, the sewage was flowing to the gutter and into a separate storm drain. Two hundred and thirty-two gallons spilled into a storm drain that flows to the creek.	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow	Staff washed down spilled affected areas in the street, curb, and gutter area. Staff flushed the creek with dechlorinated water.	Staff washed down spilled affected areas in the street, curb, and gutter area. Staff flushed the creek with dechlorinated water.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause	 	Staff added line to six-month hydro high frequency. CCTV inspection was completed on 8/26/24.	Staff added line to six-month hydro high frequency.	08/26/2024 10:00	CCTV inspection found asphalt in the mainline to have been the cause of the overflow.	N			Wildwood and Trestle Glen Creek	Stream/Creek		Stream.	None.	Other (specify below)	None.	N/A	0	Y	N												
5R	5SSO10835	Active	Mt Shasta CS	Mt Shasta City	896242	1.4	Certified	David Torres	PW Supervisor	28-AUG-24	29-AUG-24	29-AUG-24	Category 1 Spill	E Jessie St MH 654	08/25/2024 10:30	08/25/2024 10:53	08/25/2024 09:00				Spill originated at MH 654 on the corner of E Jessie St and Alder St	41.31733	-122.31448	Manhole			650	Spill travelled along gravel shoulder and paved road then entered drain inlet.	Y	Spill travelled along gravel shoulder to drain inlet and paved road.	0	325	Metal culvert pipe that discharges to open drainage ditch.	250	50	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		Spill appeared at MH 654 at the NW corner of E Jessie St and Alder St, travelled west along dirt shoulder to the curb and gutter at the NE corner of E Jessie and Chestnut St, where a portion of the spill entered the DI then travelled across Chestnut to the SW corner at Chestnut and E Jessie and entered the DI.	Y	41.3173	-122.31448	41.31677	-122.31518	41.31651	-122.31529			08/25/2024 11:10	Flow from the manhole was calculated using the  Estimated SSO flow out of M/H with cover in place  Table A. 	The start time was estimated with eye witness who reported flow. The party stated that on their walk at 9 m they saw a small puddle in front of the manhole then reported it after they walked by the location a hour later. The spill end time was documented by the operator responding the SSO.	Debris-Rags; Other (specify below)	During CCTV inspection a 3 foot section of pipe was found to be broken and possibly blocking debris, in this case rags, to cause SSO.	Gravity Mainline		Vitrified Clay		80	Impact from spill was sewer entering drainage.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow	Clean up was achieved by washing down roadway and collecting clean up water and solids with vacuum truck.	Operator arrived on site with flushing equipment to restore flow, immediate called for assistance. 2 additional operators arrived with vacuum truck to capture flow down stream. Clean up was archived by washing down street and collecting clean up water with vacuum truck sandbags were placed at DI and solids were collected and disposed of.	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		Correction action was completed, section of line was inspected with CCTV and repair to broken section of pipe was replaced.	Corrective action completed.	08/25/2024 11:10	Crew performed CCTV inspection of section of mainline sewer on 8/26/2024. Found a section of broken pipe approximately 25 feet down stream of MH 654. Soil/gravel was found in the pipe possibly causing blockage of flow.	N			Tributary to Lake Siskiyou	Stream/Creek		Tributary to Lake Siskiyou	No observed impacts to aquatic life.	Other (specify below)	No public access impacts	Siskiyou County	0	N	N												
4	4SSO11388	Active	County Sanitation District Joint Outfall CS	Los Angeles Cnty Sanitation Districts	896260	1.2	Certified	Darrell Hatch	Collection Systems Manager	28-AUG-24	07-SEP-24	07-SEP-24	Category 2 Spill	Joint Outfall �J� � Unit 1F Force Main (District 5)	08/24/2024 09:05	08/24/2024 09:38	08/24/2024 08:32	08/24/2024 11:34	24-4782		The spill originated from LACSD�s below ground Joint Outfall J � Unit 1F roadside force main located at 33.741124� N, -118.373829� W, at the southwest corner of Palos Verdes Drive S. and Narcissa Drive in the City of Rancho Palos Verdes. (See Attachment)  	33.741124	-118.373829	Force Main		A minor leak developed at a Force Main dresser coupling located approximately 300 feet downstream of the initial spill location. (See Attachment) 	15440	The main spill traveled from the force main west approximately 50 feet to an exterior wall of an uninhabitable and unoccupied residence at 5500 Palos Verdes Drive S. The spill then travelled approximately 30 feet south along the exterior of the building and was absorbed into the ground through a fissure.   The secondary spill ponded in a depression at a leaking dresser coupling and was recovered with a vacuum truck.   	N						400	Unpaved Surface		The spill originated from LACSD�s below ground Joint Outfall J � Unit 1F roadside force main located at 33.741124� N, -118.373829� W, at the southwest corner of Palos Verdes Drive S. and Narcissa Drive in the City of Rancho Palos Verdes. The spill traveled from the force main approximately 50 feet west to an exterior wall of an uninhabitable and unoccupied residence at 5500 Palos Verdes Drive S (33.741107� N, -118.373975� W). The spill then traveled approximately 30 feet south along the exterior of the building and was absorbed into the ground through an existing fissure.   A secondary spill appeared at a leaking dresser coupling on the oceanside force main (33.44245� N, -118.22007� W) and ponded in a localized depression. 	Y	33.741124	-118.373829	33.741107	-118.373975	33.44245	-118.22007			08/24/2024 10:40	Based on the spill start time of 8:32 a.m. and end time of 10:40 a.m, and estimated spill rates of 125 gallons per minute (between 8:32 a.m. and 10:24 a.m) and 65 gallons (between 10:24 a.m and 10:40 a.m) it is estimated that approximately 15,040 gallons spilled from the roadside JOJ-1F Force Main. The spill rates were estimated using pictures, videos and LACSD staff site observations.  An additional 400 gallons of wastewater is estimated to have spilled from the dresser coupling on the oceanside JOJ-1F Force Main based on pictures and staff site observations. The total spill volume is estimated to be 15,440 gallons.	The spill was assumed to start at 8:32 a.m. when the nearby resident reported it to Cal Water. LACSD staff observed the spill end time of 10:40 a.m. when the spill stopped from the roadside Force Main. 	Natural Disaster (specify below)	Damage by land movement (landslide) not related to Collection System Construction/Maintenance	Force Main		Other (specify below)	Steel	46	See Attachment	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	See Attachment	See Attachment	Other (specify below)	In response to the spill, the steel piping that is buried under the driveways will be replaced with HDPE piping in a shallow trench covered with steel plates for easier access and inspection.  	See 10.a. and Attachment	NA	08/26/2024 11:45	See Attachment	N												N													
4	4SSO11423	Active	Long Beach Water Dept. CS (SSO program)	Long Beach City, Water Dept	896261	1.1	Certified	Jennifer Rojas	Senior Director 		27-SEP-24	27-SEP-24	Monthly Category 3 Spill	1455 Obispo Ave Long Beach CA.	08/16/2024 00:00	08/16/2024 01:05	08/15/2024 23:00				The spill originated from a private toilet installed inside a garage at 1455 Obispo Ave, Long Beach, CA 90804	33.78548	-118.15489	Inside Building or Structure			258	The spill originated from a private toilet installed inside a garage at 1455 Obispo Ave, Long Beach, CA 90804. The spill extended from the garage into the alley behind the property. From there, it traveled down the alley and entered the street's curb and gutter system.  The crew promptly implemented containment measures by placing barriers to prevent the spill from spreading further. Photographs documenting the extent of the spill and the boundaries are provided under the Attachments tab.	N	N/A � The spill did not reach a drainage conveyance system.	0				258	Building or Structure; Paved Surface; Street/Curb and Gutter (2 3)		A sewer spill occurred, resulting in the release of wastewater into a garage, the adjacent alley, and the street curb and gutter at 1455 Obispo Ave, Long Beach, CA. The spill traveled along the alley and street curb and gutter, extending approximately 788 feet. To prevent further contamination, sandbags were strategically placed to contain the spill and prevent it from spreading to surrounding areas.	Y	33.78549	-118.15588							08/15/2024 23:25	The spill volume was calculated using the formula (Length X Width X Depth) (X 7.48), where the dimensions were 788 feet (Length) X 0.7feet (Width) X 0.0625 inches (depth) and the conversion factor of 7.48 to convert the result to gallons = 257.87 gallons.  Approximately 258 gallons.	The spill start and end times were estimated based on information provided by the sewer construction crew and residents. According to the operator, the sewer construction crew plugged the sewer mainline at 23:00. This plug remained in place for 25 minutes before being removed at 23:25. The residents did not notice the spill until approximately 00:00 on 8/16/2024, at which point they notified the construction crew. This notification was used to estimate the time of discovery of the spill. The times provided by the construction crew and residents, along with the duration the mainline was plugged, were used to estimate the start and end times of the spill event.	Operator Error (specify below)	The mainline was plugged to perform a repair. The error occurred during this process, leading to the spill.	Gravity Mainline		Concrete		104	The spill reached the Garage, the alley and the street curb and gutter. Ocean Blue Vacuumed and sanitized all affected areas. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Spill Containment: A sewage overflow from a private toilet installed inside a garage resulted in a spill of approximately 258 gallons. Immediate containment measures were implemented to prevent the spread of the spill. Barriers were deployed around the affected area to contain the sewage and limit its spread to other areas.  Cleanup Efforts: Cleanup operations were initiated by Ocean Blue Environmental. The cleanup involved both the garage and the street where the spill had extended. A pressure washer and a vacuum truck were utilized to address and remove the 258 gallons of sewage. These tools were effective in cleaning the affected surfaces and ensuring that the area was properly sanitized.	Other (specify below)	The plug was removed after completing the repairs on the sewer pipe.	The corrective actions taken for the spill included immediate containment and cleanup efforts. Containment measures were promptly implemented to prevent the spill from spreading beyond the affected area, with barriers deployed around the garage and street. Ocean Blue Environmental carried out the cleanup operations, using a pressure washer and a vacuum truck to remove the approximately 258 gallons of sewage from the garage, alley, and street. To prevent future occurrences, construction leads will be made aware of the need to be cautious with sloped streets and to frequently monitor plugged lines to avoid potential spills. Routine maintenance and inspections will continue to be scheduled to ensure the sewer infrastructure remains in good condition.		08/16/2024 05:19	A Post CCTV inspection revealed no issues in the sewer pipe segment. After field investigations it was determined that the spill was caused by an operators error. The sewer construction crew, plugged the line to perform repairs on the sewer pipe. 		No ongoing investigation at this time.	08/16/2024 02:00														The Long Beach Health Department was notified.	To prevent repeated spill occurrences at the same location, the crew removed the plug, restoring normal flow. Additionally, we have a 2-year Preventive Sewer Maintenance Program in place, designed to ensure the long-term health and functionality of our sewer system. This program includes regular inspections and maintenance to identify and address potential issues before they result in spills.	To prevent repeated spill occurrences at the same location, the crew removed the plug, restoring normal flow. No changes were made to the system itself as the spill was attributed to human error rather than a systemic issue. 	None planned at this time.	The spill was caused by plugging the sewer mainline for repairs. The crew removed the plug and restored normal flow in the sewer line. No additional repairs or replacements were necessary beyond the removal of the plug.	None planned at this time.	No modifications have been made to the system or operating procedures following the spill.	No modifications have been made to the system or operating procedures following the spill.	No ongoing investigation at this time.	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	896266	1.1	Amended	Kent Vian	Asst. Deputy Director		30-AUG-24	30-AUG-24	Monthly Category 3 Spill	NOT-40201146469 3870 WELLBORN ST.	08/28/2024 15:46	08/28/2024 16:00	08/28/2024 15:48				THE SPILL ORIGINATED FROM A 6  LINED EASEMENT SEWER MAIN ON THE SIDE 0F 3870 WELLBORN ST	32.74669	-117.17676	Lower Lateral (Private)	N/A	N/A	170	SPILL BOUNDARIES WERE FROM THE SEWER EASMENT MAIN BACKING UP THROUGH THE PRIVATE LATERAL AND ENDING IN THE LOWER BACK PATIO OF THE PROPERTY (3870 WELLBORN ST) WERE IT SETTLED.	N	NOT APPLICABLE	0				0	Building or Structure	NOT APPLICABLE	THE SPILL EVENT DESTINATION WAS IN THE LOWER  BACK PATIO OF THE PROPERTY (3870 WELLBORN ST) WERE IT SETTLED.	Y	32.74669	-117.17676							08/28/2024 16:20	THE SPILL VOLUME ESTIMATIONS WERE CALCULATED USING THE VISUALCALCULATED METHOD.	THE SPILL START TIME WAS THE TIME THE CUSTOMER CALLED STATION 38 AND THE SPILL END TIME WAS THE TIME CREWS VISUALLY SAW THE SPILL STOP.	Debris-General		Gravity Mainline	NOT APPLICABLE	Concrete	LINED	67	IMPACTS OF THE SPILL WERE TO THE LOWER BAC PATIO @ 3870 WELLBORN ST. 	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow	NOT APPLICABLE	THE SPILL ACTIVITIES WERE TO IMMEDIATELY TO CONTAIN THE SPILL AND RESTORE THE FLOW WITH OUR COMBINATION TRUCK, THEN TRACK THE FINAL DESTINATION FLUSH 2 UP AND 2 DOWN REFER TO SSO INVESTIGATOR TO MITIGATE THE DAMAGES SUSTAINED FROM THE SPILL REFFERED TO CCTV .	Post Spill CCTV	NOT APPLICABLE	THE SPILL CORRECTIVE ACTION WAS TO RESTORE THE FLOW CCTV SEWER MAIN AND GIVE FINDINGS TO UPPER MANAGEMENT.		08/28/2024 16:20	THE CAUSE OF THE SPILL WAS DEBRIS IN SEWER MAIN		NOT APPLICABLE	08/29/2024 14:30														NONE	UNKNOWN AT THIS TIME	NOT APPLICABLE	MANAGEMENT WILL MAKE THAT DETERMINATION	SEWER MAIN WILL BE REFFERED TO CCTV FOR FURTHER INSPECTION. 	NOT APPLICABLE	NOT APPLICABLE	NOT APPLICABLE	NOT APPLICABLE	
2	2SSO10185	Active	Sanitary District #2 Of Marin CS	Sanitary District #2 of Marin	896272	1.4	Certified	RJ Suokko	District Manager		29-AUG-24	29-AUG-24	Monthly Category 3 Spill	41 Summit Drive	08/25/2024 11:11	08/25/2024 12:19	08/25/2024 11:05				Spill started at MH-A_5_120 near 41 Summit Drive.	37.92537	122.53461	Manhole			483	Photo of leaking manhole, photo of surface flow on roadway, photo of surface flow in gutter, flow of entry point into catch basin, flow of downstream discharge and additional catch basins showing no flow or moisture.	Y	Exited manhole at 41 Summit and flowed into ditch on Summit Drive and Oak Lane, and flowed downhill thru to catch basin at 102 Edison where it appeared to dry out.	0				4	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		Street, to curb/gutter, to surface drain, to HDPE pipe, to curb/gutter, to catch basin. Approximately 500 feet in total.	N									08/25/2024 13:46	Volume estimation and flow rate comparison method.	Used photos and manhole photo chart to estimate flow GPM.	Debris-wipes/Non-disposables		Manhole		Polyvinyl Chloride (PVC)		10	Minimal impact. Primarily odor and flows onto pavement.	N	Property Owner Notified	Notifications said  think before you flush 	Cleaned up using shovels and trash bags to remove and dispose of solids. Contained all of the spill. Restored flow. 	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Added to sewer maintenance program.		08/25/2024 15:30	The sewer main was CCTV'd which identified there was a clog. Blockage was cleared and sewer main flow was reestablished.		None	08/25/2024 15:30														N/A	Adjusted maintenance schedule at this location.	Will clean this sewer main more frequently.	N/A. Pipe is is great condition and is PVC.	N/A.	N/A.	Will be added to future maintenance cycles.	Will prepare reporting documents sooner.	None	
9	9SSO10649	Active	City of El Cajon CS	El Cajon City	896282	1.2	Certified	Aaron Jones	Operations Manager		30-AUG-24	30-AUG-24	Monthly Category 3 Spill	205 BEECH STREET	07/08/2024 09:30	07/08/2024 09:45	07/08/2024 09:25				SEWER DISCHARGED THROUGH THE LOWER LATERAL CLEANOUT OF 205 BEECH STREET WHICH DID NOT HAVE A SECURED CLEANOUT CAP. 	32.80259	-116.95999	Lower Lateral (Private)		N/A	75	SPILL ENTERD THE STREET AT 205 BEECH STREET AND POOLED IN THE CROSS GUTTER AND DIRT AREA AT THE CORNER OF BEECH STREET AND GRAVES AVE.	N						75	Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		SPILL ENTERD THE STREET AT 205 BEECH STREET AND POOLED IN THE CROSS GUTTER AND DIRT AREA AT THE CORNER OF BEECH STREET AND GRAVES AVE.	Y	32.80264	-116.96035							07/08/2024 09:40	THE EYEBALL METHOD AND CALULATION OF WATER VOLUME WERE USED TO ESTIMATE THE AMOUNT OF THE SPILL AS ANY WATER FLOW HAD STOPPED BY THE TIME CREWS WERE AT THE APPEARANCE POINT OF THE SPILL.	200' SURFACE AREA X .05' H (AVERAGE) X7.48 GAL/ CUBIC FOOT = 74.8 GALLONS.	Other (specify below); Pump Station Failure - Mechanical	BAG IN SEWER COVERED INTAKE END FOR PUMP	Manhole; Pump Station - Mechanical		Other (specify below)	INTAKE HOSE FOR PUMP	0	THERE WAS NO LASTING IMPACT OF THE SPILL AS IT WAS 100% CLEANED UP.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		CITY CREWS RESPONDED AND CLEANED UP 100% OF THE SPILL WHICH HAD POOLED IN A CROSS GUTTER AND DIRT AREA NEXT TO THE STREET.  CREWS USED A COMBINATION JETTER CLEAN THE AREA WITH CLEAN WATER AND VACUUM IT UP.  	Other (specify below)	CITY CONTRACTOR REPAIRED FLOAT ISSUE FOR SECONDARY BYPASS PUMP	THIS TOOK PLACE DURING A BYPASS OPERATION DUE TO EMERGENCY REPAIRS OF A SEWER LINE THAT CROSSED UNDER A FREEWAY.  ONCE REPAIRS AND BYPASS HAVE STOPPED THERE WILL BE NO CHANCE OF THE SITUATION REOCCURING.		07/08/2024 08:41	THIS SPILL WAS CAUSED DUE TO AN INTAKE HOSE FOR A HI-LINING PUMP BEING CLOGGED BY A PLASTIC BAG AND THE SECONDARY PUMP FAILING TO AUTOMATICLY START AS SEWER LEVELS ROSE INSIDE THE MANHOLE.  SEWER DISCHARGED THROUGH THE LOWER LATERAL CLEANOUT OF 205 BEECH STREET WHICH DID NOT HAVE A SECURED CLEANOUT CAP.  THE SPILL WAS IMMEDIATELY REPORTED BY MONICA, A RESIDENT OF 205 BEECH STREET.  ONCE REPORTED, THE ONSITE CONTRACTOR FOR THE SEWER LINE REPAIR JOB WAS CALLED AND IMMEDIATELY TURNED ON THE SECONDARY PUMP AND STOPPED THE SPILL.  CITY CREWS RESPONDED AND CLEANED UP 100% OF THE SPILL WHICH HAD POOLED IN A CROSS GUTTER AND DIRT AREA NEXT TO THE STREET.  CREWS USED A COMBINATION JETTER CLEAN THE AREA WITH CLEAN WATER AND VACUUM IT UP.  		N/A	07/08/2024 08:41														N/A	NEW SEWER LINE IS BEING INSTALLED AT THIS LOCATION.	N/A 	N/A	NEW SEWER LINE IS BEING INSTALLED AT GRAVES AND THE I-8.  THIS CORRECTS THE ISSUE LEADING TO NECCISSARY BYPASS OF SEWER.	N/A	N/A	N/A	N/A	
2	2SSO10168	Active	Redwood City CS	Redwood City	896283	1.2	Certified	Robin Kim	Public Works Superintendent		30-AUG-24	30-AUG-24	Monthly Category 3 Spill	801-814 Roosevelt Ave	07/11/2024 08:59	07/11/2024 09:15	07/11/2024 08:49				A blockage in the sewer main resulted in 3 property line cleanouts spilling over at 801, 807 and 814 Roosevelt. The appearance point closest to the failure point was the property line cleanout at 801 Roosevelt (at 37.47374718109022, -122.23221828959787). Please see photos and map in attachments.	37.47374718109	-122.232218289598	Lateral Clean Out (Private)			305	Please see map showing in purple highlight the spill boundaries.	Y	Part of the spill reached a storm inlet located at the corner of Roosevelt and Hudson, closest to 801 Roosevelt, which was the upstream end. Staff checked the downstream storm inlet, which was across the street in front of 773 Roosevelt which was dry, confirming no flow. See attached PDF showing calculations for spill volume into the storm inlet.	238				238	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		Spills from 2 property line cleanouts at 801 and 807 Roosevelt reached the sidewalk and planter strip in front of both properties. A spill across the street from a property line cleanout at 814 Roosevelt reached the sidewalk and street, traveling down a v-gutter 30 feet.	Y	37.473706871911	-122.232269080342	37.473799659045	-122.232214456334	37.47381487004	-122.232398452991	37.47384529202	-122.232285371712	07/11/2024 09:24	As this is a gravity line, there was no SCADA information to pull. There were 3 appearances points (from 3 different cleanouts) so spill volume was estimated for each discrete area and added together. Two of the private cleanouts were not spilling at the time City staff arrived, so spill volume estimates were calculated using surface area and average spill height. The third private lateral was still spilling at the time of City staff arrival; spill volume was calculated by multiplying total spill time (35 minutes) by estimate flow rate (8gpm). The total spill volume came to 305 gallons.	This area of the City has high foot and vehicle traffic in the morning as there is a busy community center and park 3 blocks down the street as well as a charter school half a block away. On this day both locations had summer programs going on, with start times ranging 8am-9am. Due to the high traffic, it would be reasonable to assume that although the reporting party did not see the spill begin, the spill start time would not have been going on for very long beforehand as the City would have been notified earlier, considering high morning sewage usage. The reporting party lived a half block down from the spill site. We estimate that the start time is likely to have occurred about 10 min prior to notification to the City at 8:49am. Spill end time was recorded by City staff when staff cleared the blockage in the sewer main, they saw the 801 Roosevelt cleanout stop spilling, and they confirmed the 807 Roosevelt and 814 Roosevelt cleanouts were also not spilling.	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		70	The spill came out of 3 cleanouts, two of which had stopped spilling by the time City staff arrived at the scene. The spill area included paved and unpaved areas in front of 801 and 807 Roosevelt and a storm inlet in front of 801 Roosevelt, and paved areas, including a v-gutter, in front of 814 and 808 Roosevelt.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Spill response activities included having staff flush the main line to unclog the blockage, which was occurring in the 8  vitrified clay pipe segment before the manhole at the intersection of Roosevelt and Hudson. The blockage was easily and quickly removed and was caused by a small pileup of disposable wipes and bits of grease. Once the spill stopped staff hosed down and disinfected the affected areas on the even side of Roosevelt (sidewalk, soils on private property and planter strip) and then cleaned and vactored the storm inlet where the spill had gone into. There was no flow in the storm inlet and the downstream storm inlet across the street in front of 773 Roosevelt that it tied into was dry. There was no upstream inlet that we needed to check. After cleaning the even numbered side of Roosevelt, staff went to the odd side of Roosevelt to hose down and disinfect the smaller spill. There is a storm inlet on that side of the street but the spill did not reach it.	Adjusted Schedule/Method of Preventive Maintenance		We will be flushing this sewer main segment more frequently.		07/11/2024 10:32	Based on the spill cause, we are modifying our internal maintenance schedule to have more frequent sewer main flushing in this area to ensure debris does not build up.		After the sewer main was flushed, the blockage was immediately cleared and staff were able to identify the cause of the blockage. Staff checked this pipe segment the following morning and found no further issues. No further investigation was needed.	07/12/2024 10:00														Not applicable.	We have modified our preventive maintenance schedule to have more frequent maintenance for this area.	We have modified our preventive maintenance schedule to have more frequent maintenance for this area.	It does not appear that this spill is due to a pipe defect, and no repair is needed at this time.	It does not appear that this spill is due to a pipe defect, and no repair is needed at this time.	Not applicable.	Internal maintenance schedule has been updated to monitor this location more frequently.	Staff has been instructed to take measurements after cleanup has occurred to help with better description of the spill boundaries.	After the sewer main was flushed, the blockage was immediately cleared and staff were able to identify the cause of the blockage. Staff checked this pipe segment the following morning and found no further issues. No further investigation was needed.	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	896284	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		04-SEP-24	04-SEP-24	Category 1 Spill	300 North Paseo Miramar	08/29/2024 15:15	08/29/2024 16:07	08/29/2024 15:15	08/29/2024 20:04	24-4901		Maintenance hole overflowing at 300 North Paseo Miramar. Photo attached.	34.042772	-118.554511	Manhole			6428	photo attached	Y	City of Los Angeles catch basin located at Paseo Miramar and Sunset Boulevard	0	0	Storm drain system discharges to the Pacific Ocean	6428	0	Other (specify below)	Approximately 6,428 gallons of sewage flowed from the sewer as a result of the blockage. The sewage was captured by a County of Los Angeles low flow diversion structure that prevented discharge into the Pacific Ocean. This incident is classified as a Category II Sanitary Sewer Overflow by the State Water Resources Control Board.  	34.042772   -118.554511	Y	34.042772	-118.554511							08/29/2024 18:32	DIAMETER OF MH 27INCHES GAP BETWEEN FRAME AND COVER 0.125 BASED ON 1/8  GAP HEIGHT OF WATER AROUND COVER 0.5 INCHES FLOWRATE FROM RING/GAP (GPM) 33 GPM TOTAL FLOWRATE (GPM) 33 GPM DURATION OF SPILL (MINUTES) 197 MINUTES TOTAL FLOW (GALLONS) 6,428 GALLONS	Spill flowrate and volume determination based on flow from around the ring of a MH cover 	Root Intrusion		Gravity Mainline		Other (specify below)	HDPE	23	Approximately 6,428 gallons of sewage flowed from the sewer as a result of the blockage. The sewage was captured by a County of Los Angeles low flow diversion structure that prevented discharge into the Pacific Ocean.	N	Cleaned Up (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		On Thursday, August 29, 2024, at 3:15 PM, LA Sanitation and Environment�s (LASAN) Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 300 North Paseo Miramar (TG 630-G5). A CWCD crew arrived at the incident location and determined that the 8-inch main line sewer serving the referenced area was spilling due to a blockage, which was attributed to root intrusion. The crew proceeded to remove the blockage and the backup ceased at 6:32 PM. All necessary clean-up steps were performed. 	Adjusted Schedule/Method of Preventive Maintenance	In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	08/29/2024 18:32	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	N		08/29/2024 18:32	Pacific Ocean	Other (specify below)	The sewage was captured by a County of Los Angeles low flow diversion structure that prevented discharge into the Pacific Ocean.	The sewage was captured by a County of Los Angeles low flow diversion structure that prevented discharge into the Pacific Ocean.	The sewage was captured by a County of Los Angeles low flow diversion structure that prevented discharge into the Pacific Ocean.	Other (specify below)	The sewage was captured by a County of Los Angeles low flow diversion structure that prevented discharge into the Pacific Ocean.	County Health Department	0	N	Y	16421 Pacific Coast Highway	Total Coliforms: 1.20E+08 E. coli: 1.20E+07 Enterococcus: 5.20E+06 										
5F	5SSO10737	Active	Kern Sanitation Authority CS	Kern County Public Works Department	896287	1.1	Certified	jesus uribe	Wastewater Specialist		30-AUG-24	30-AUG-24	Category 2 Spill	manhole #2313	08/29/2024 18:00	08/29/2024 18:20	08/29/2024 17:30	08/30/2024 10:05	24-4913		spill point was from one location on manhole #2313 on intersection of manley ave and corto st 	35.38442	-118.96254	Manhole			13500	spill traveled street curb into storm drain/ conveyance ditch	Y	all flow stayed in storm drainage system	100	13400			100	Drainage Conveyance System; Paved Surface		spill traveled no more than 100 feet to storm drain on paved road	Y	35.38414	-118.96252							08/29/2024 19:00	using the spill chart provided by the waterboard and comparing it how it was spilling out of the manhole.	we estimated time based on time of call notification and how much water appeared to be in the area, we were able to lock in a estimated spill time.	Debris-General; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		60	streets were contaminated in area the sewer traveled through, but we were able to disinfect. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		we relieved stoppage by hydro jetting line, making spill stop from spilling, we put barriers to keep additional water going into storm drain. we then washed road, vacuumed it and then spray disinfectant.	Added Sewer to Preventive Maintenance Program		sewer line will be added to a hot spot list to be cleaned more frequently.	NA	08/29/2024 18:30	heavy grit and grease found in line causing blockage.	N		08/29/2024 20:00										N													
2	2SSO18110	Active	Treasure Island Development Authority CS	Treasure Island Development Authority	896290	1.1	Certified	Robert Beck	Treasure Island Director		03-SEP-24	03-SEP-24	Monthly Category 3 Spill	749 9th Street, Treasure Island	08/26/2024 07:05	08/26/2024 07:15	08/26/2024 07:00				near 749 9th Street on TI address	37.82618	-122.36835	Manhole			50	Spill came out of manhole next to sidewalk on the grate. about 50 Gals came out of manhole ran along fence of the curb. spill continued between 3 catch basins. spill never made to separated system or water in  cb was below the culvert, CB was cleaned out with vac and switched.	N						50	Paved Surface		NA										08/26/2024 09:05	NA	NA	Debris-Rags; Pump Station Failure - Mechanical		Gravity Mainline; Manhole		Vitrified Clay		85	None	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		Spill contained between 2cbs. starting water between the 2 cbs was cleared using vac. water level in both cbs below culvert so no sewage went into separate system. Both cbs were vac. out. MH was full of sewage contains overflow. MH wac. out. Also maybe pump failure at station. 	Other (specify below)	Enforcement action against waste	NA		08/26/2024 09:05	Spill came out of manhole due to rage, also pumping issues		NA	08/26/2024 09:05														NA	NA	NA	NA	NA	NA	NA	NA	NA	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	896293	1.3	Certified	Kent Vian	Asst. Deputy Director		13-SEP-24	13-SEP-24	Monthly Category 3 Spill	NOT-40201147197 HUERFANO AVE. & PETERS WAY.	08/31/2024 12:17	08/31/2024 12:43	08/31/2024 12:19				THE SPILL ORIGINATED FROM A MANHOLE IN FRONT OF 4165 HUERFANO AVE.	32.8173	-117.21663	Manhole	N/A	NOT APPLICABLE	74	THE SPILL BOUNDARIES WERE FROM MANHOLE IN FRONT OF (4165 HUERFANO AVE) AND RAN WEST DOWN STREET TO STROM DRAIN WERE IT SETTLED.	N	NOT APPICALBLE	0				22	Paved Surface; Street/Curb and Gutter (2 3)	NOT APPLICABLE	THE SPILL EVENT DESTINATION WAS IN A STORM DRAIN IN FRONT OF 4123 HUERFANO AVE.	Y	32.81684	-117.21651							08/31/2024 12:54	THE SPILL VOLUME ESTIMATIONS WERE CALCULATED USING THE VISUAL CALCULATED METHOD.	THE SPILL START TIME WAS THE TIME THE CUSTOMER CALLED STATION 38 AND THE SPILL END TIME CREWS VISUALLY SAW THE SPILL STOP.	Debris-General	NOT APPLICABLE	Gravity Mainline	NOT APPLICABLE	Vitrified Clay	NOT APPLICABLE	68	IMPACTS OF THE SPILL WERE TO THE CURB & GUTTER AND STORM DRAIN.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow	NOT APPLICABLE	THE SPILL ACTIVITIES WERE TO IMMEDIATELY TO CONTAIN THE SPILL AND RESTORE THE FLOW WITH OUR COMBINATION TRUCK, THEN TRACK THE FINAL DESTINATION FLUSH 2UP AND 2DOWN, CCTV MAINS CLEAN UP CURB & GUTTER AND STORM DRAIN.	Post Spill CCTV	NOT APPLICABLE	CHANGE MAINTENANCE FREQUENCY TO A 24-MONTH CYCLE. THIS HAS ALREADY BEEN ACCOMPLISHED.		08/31/2024 12:54	CAUSE OF THE SPILL WAS DEBRIS IN SEWER MAIN.		NONE	09/03/2024 14:30														N/A	MAIN IS ON CIP PROJECT #B19104	CHANGED CLEANING SCHEDULE FROM 26 MONTHS TO 24 MONTHS.	SEE 20.D	INSPECTED VIA CCTV 	SEE 20.D	SEE SAP NOTES UNDER WORK ORDER 20200734552 FOR EQ# ID 10775069	NO MODIFICATIONS TO SPILL RESPONSE	NONE	
2	2SSO10156	Active	Milpitas City CS	Milpitas City	896296	1.2	Certified	Daniel McVey	Utilities Division Manager 	03-SEP-24	19-SEP-24	19-SEP-24	Category 2 Spill	Santa Rita Siphon	08/29/2024 13:35	08/29/2024 13:00	08/29/2024 13:35	08/29/2024 14:45	24-4894		Location of the spill was from the upstream manhole on the cities Santa Rita siphon. Caused by a blockage in the siphon. We had early warning smart covers alert us of a potential issue and responded to the site.	37.44275	-121.89361	Manhole; Other (specify below)	Upon start up of bypass pump, discharge side of the hose momentarily came out of manhole and spilled approximately 50 gallons onto the road. 	Hose came out of manhole and was promptly put back in, approximately 50 gallons was discharged onto the roadway when this happened, 	9200	Crews arrived on scene and began pumping around in an attempt to avoid the spill. Our pump could not handle the flow and a spill ensued from the upstream manhole on one of our siphons. A larger pump was brought in and successfully pumped around as crews worked to clear the blockage. The spill area was contained to a green belt location approximately 100ft by 100ft. 	Y	Some of the overflow discharged from our pump and made it into the nearest drain inlet. Crews used a vactor to clean the DI and corelating line. 	20	0			9200	Drainage Conveyance System; Unpaved Surface		Spill was from a manhole on the upstream side of a siphon. The spill covered approximately 1000 square feet of unpaved grass area. Some of that spilled into the curb and gutter along Santa Rita and was vacuumed up by one of our Vactors. When we started up our bypass pump approximately 50 gallons discharged onto Santa Rita with 20 gallons making it into the DI on the corner of Tramway. All of the effluent was cleaned up 	Y	37.44276	-121.89388							08/29/2024 15:17	We utilized the flow rate comparison method, using the 100 gpm near and far flow picture to confirm. The start and stop times were known due to staff being on site when both were observed. We also used the eyeball volume estimation method assuming approximately 2 55 gallon drums spiling continuously. 	We were present when the spill started due to an alert from our upstream smart cover. Staff were onsite setting up the pump around when the manhole crested and started spilling. Stop time was noted when the bypass pump was started and the spill receded. 	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Siphon		Other (specify below)	RCP	43	Required mobilization of both sewer and water crews. Used on call contractor Abel to assist with the pump around. Blockage and siphon was cleared after 4 hours of continues cleaning and flushing. 	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Crews arrived on scene after being alerted by our smart cover system. Contacted Abel to get larger pump when it was determined that extensive cleaning would be required to clear blockage. Overflow started and crews worked to make the scene safe for the public. A berm was built around the nearest DI and a Vactor was placed upstream of that to collect any effluent that made it past the greenbelt. Abel arrived and we began the set up of the pump around. Pump was started and the spill was stopped. Upon start up of the pump some sewage spilled on the road and ito the DI but it was promptly cleaned up. Crews used another 2 inch pump to pump sewage from the grass area back into he downstream manhole. We used another Vactor and hose to washdown the grass and path with approximately 25k gallons of water. All debris on the grass was vacuumed up and hauled offsite. Any sewage not returned to the sewer system was cleaned up via our Vactors. 	Adjusted Schedule/Method of Preventive Maintenance		Siphon is now on our list to perform quarterly cleaning instead of biannual. In addition we have added upstream sections to he cleaning to reduce the chance of debris making it into the siphon to begin with. 	Perform quarterly maintenance 12/24 - 3/25 - 6/25 - 9/25 - 12/25. We will inspect upstream and downstream manholes in-between cleanings to confirm flow and no additional need for cleaning.  	08/30/2024 13:21	Appears to be build up of non flushable wipes and grease in our siphon. Maintenance had been an issue for the past year. Site is on a list to be looked at for potential CIP and upsizing of pipe due to its critical nature. 	N												N													
6B	6SSO11151	Active	June Lake PUD CS	June Lake PUD	896179	2.7	Amended	Mamadou Dialio	CPO	23-AUG-24	03-SEP-24	03-SEP-24	Category 1 Spill	19 Willow	08/20/2024 21:57	08/20/2024 19:30	08/20/2024 19:30	08/20/2024 22:53	24-4719		37.764389, -119.104417 ; Location where spill entered Reversed Creek	37.764389	-119.104417	Gravity Mainline; Manhole		Spill appearance point into Reversed Creek from the manhole. Manhole became overwhelmed which caused the spill to overflow into the creek.	5130	Sewer main pipe was damaged by homeowner contractor during new home construction activities. Debris entered damaged section of the pipe which reduced flow within the sewer main. This break caused a slow fill of the excavation area. Manhole downstream became overwhelmed with dirt, debris, and wastewater which caused an overflow/spill into the creek.	N				Pictures of manhole that became overwhelmed, Spill point at Reversed Creek 	850	4280	Surface Water		Sewer manhole to Reversed Creek	Y	37.764261	-119.104299							08/20/2024 20:01	Spill duration time and volume dimensions between the manhole were the discharge occurred and entrance point of the creek	Contract worker estimations of duration of spill time	Damage by Others Not Related to Collection System Construction/Maintenance; Debris from Construction		Gravity Mainline; Manhole		Concrete		35	Still an ongoing investigation to determine the full impact. Water quality monitoring samples have been collected, waiting for results.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Top soil removal. Vactoring	Brought in Vactor from nearby district to remove wastewater from breakpoint. Tried to locate additional vactor to respond. Conducted rodding. Placed sandbags and straw waddles around breakpoint. Enlarged excavation area to allow for additional capacity/volume. Maintained communications. Contacted county and state OES. Topsoil removal and disposal.	Repaired Facilities or Replaced Defect		Unforeseeable event caused by a homeowner's contractor/construction activities. Broken pipe was repaired and inspected. Vactoring.	NA	08/20/2024 22:53	Conducted interview with on-site contractors/workers to determine that they had broken our sewer main.	Y	Water quality monitoring activities of Reversed Creek	09/30/2024 16:23	Reversed Creek	Stream/Creek		Small Creek	None observed	Temporary Restricted Use		NA	1	N	Y	Release point, upstream and downstream	Total Coliform, E. Coli, and Nitrate									Water quality monitoring activities of Reversed Creek	
4	4SSO11388	Active	County Sanitation District Joint Outfall CS	Los Angeles Cnty Sanitation Districts	896307	1.3	Certified	Darrell Hatch	Collection Systems Manager	03-SEP-24	12-SEP-24	12-SEP-24	Category 2 Spill	Worsham Creek Relief Trunk - MH 18 1195 (District 18)	08/28/2024 10:55	08/28/2024 11:14	08/28/2024 10:45	08/28/2024 12:18	24-4860		The spill originated from LACSD�s Manhole 18 1195 located at   33.9734304� N, -118.0326479� W, on Painter Ave approximately 50 feet North of Via del Palma Ave in the City of Whittier. (See Attachment) 	33.9734304	-118.0326479	Manhole			5071	The spill area extended approximately 40 feet east from the manhole to two stormwater catch basins � one each on Painter Ave and Via del Palma Ave, and a third catch basin located approximately 600 feet south of the manhole on Painter Ave.  The spill then traveled in a belowground storm drain approximately 10,000 feet southwest from the catch basins to Sorensen Avenue Drain, and then approximately 2,700 feet east to a sandbag containment dam in the channel.  	Y	The spill traveled approximately 10,000 feet southwest from the catch basins in below ground storm drains to Sorensen Avenue Drain. 	3071	0			5071	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		The spill originated from LACSD�s Manhole 18 1195 located at   33.9734304� N, -118.0326479� W, on Painter Ave approximately 50 feet North of Via del Palma Ave in the City of Whittier. The spill area extended approximately 40 feet east from the manhole to two storm water catch basins � one each on Painter Ave and Via del Palma Ave, and a third catch basin located approximately 600 feet south of the manhole on Painter Ave.   The spill traveled in a belowground storm drain approximately 10,000 feet southwest from the catch basins to the Sorensen Avenue Drain, and then approximately 2,700 feet east to a sandbag containment in the channel constructed by Sanitation Districts� staff.  (See Attachment) 	Y	33.9734304	-118.0326479	33.956207	-118.053565	33.946402	-118.046219			08/28/2024 11:37	Based on the spill start time of 10:45 a.m. and end time of 11:37 a.m. (approximately 1 hour), and estimated spill rates of 85 gallons per minute it is estimated that approximately 5,100 gallons spilled from MH 18 1195. The spill rate was calculated using pictures, videos, and LACSD staff site observations.	The spill start time was established as 10:45 a.m. based on City of Whittier staff observations. The spill end time was established by LACSD staff that cleared the blockage at 11:37 a.m. 	Root Intrusion		Manhole		Vitrified Clay		35	See Attachment	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned All Spill to Sanitary Sewer System	See Attachment	See Attachment	Other (specify below)	See Attachment	See Attachment	N/A	08/29/2024 09:45	See Attachment	N												N													
8	8SSO10597	Active	Running Springs CS	Running Springs Water Dist	896319	1.2	Certified	Ryan Gross	General Manager		04-SEP-24	04-SEP-24	Monthly Category 3 Spill	Soutar & Highway 18	08/09/2024 19:15	08/09/2024 19:25	08/09/2024 19:30				Double sewer siphon backed up and spilled approximately 750 gallons out of RSWD sewer manhole #1C at intersection of Highway 18 and Soutar Drive in Running Springs Water District onto paved roadway.	34.2043	-117.100902	Manhole	Double sewer siphon backed up and spilled approximately 750 gallons out of RSWD sewer manhole #1C at intersection of Highway 18 and Soutar Drive in Running Springs Water District onto paved roadway.		750	Double sewer siphon backed up and spilled approximately 750 gallons out of RSWD sewer manhole #1C at intersection of Highway 18 and Soutar Drive in Running Springs Water District onto paved roadway.	N						0	Paved Surface		Double sewer siphon backed up and spilled approximately 750 gallons out of RSWD sewer manhole #1C at intersection of Highway 18 and Soutar Drive in Running Springs Water District onto paved roadway.										08/09/2024 19:35	Visual observation and pump run time.	Visual observation and pump run time.	Pump Station Failure - Mechanical; Siphon Failure		Manhole		Other (specify below)	10  AC	50	Spilled onto paved roadway and evaporated.	N	Other (specify below)	No debris observed, spill evaporated on hot AC roadway.	Observed approximately 750 gallons that spilled onto paved roadway. No debris, everything evaporated.	Adjusted Schedule/Method of Preventive Maintenance		Annual maintenance planned on inverted double siphon.		08/09/2024 20:30	Annual maintenance planned on inverted double siphon.		Annual maintenance planned on inverted double siphon.	09/06/2024 11:49														n/a	Annual maintenance planned on inverted double siphon.		Annual maintenance planned on inverted double siphon.	Annual maintenance planned on inverted double siphon.	Annual maintenance planned on inverted double siphon.		Annual maintenance planned on inverted double siphon.	Annual maintenance planned on inverted double siphon.	
8	8SSO10543	Active	Beaumont City CS	Beaumont City	896355	1.2	Certified	Jerome Moledor	Wastewater Collections Supervisor	05-SEP-24	17-SEP-24	17-SEP-24	Category 2 Spill	950 Western Knolls	09/04/2024 15:19	09/04/2024 15:26	09/04/2024 15:15				Spill came from a newly installed 16  force main that was being filled. Spill appeared out of a joint in the asphalt of the street.	33.93374	-117.00254	Force Main			2759	Spill came from a newly installed 16  force main that was being filled. The spill collected in 3 different areas. 	N						2259	Paved Surface; Unpaved Surface		Spill destination was on the street and dirt to the side of the road. The spill collected in 3 different locations around the appearance point.	Y	33.9337	-117.00229							09/04/2024 15:35	Spill volume was calculated by measuring the spill areas and doing the math. Based on length, width, depth and converting to gallons.	Spill start time was based on caller notification and sometime added. The force main line was being fill for the first time and was not at full pressure. Spill end time was with the new force main was shut down.	Other (specify below)	Spill cause was a contractor had cut a  window  in the top of the pipe as a videoing station during the force main construction process. This spot was overlooked and not repaired by the contractor. The contractor gave the ok to start filling the line for testing. As the force main line was being filled and not at full pressure, this problem was found. 	Force Main		Polyvinyl Chloride (PVC)		10	Spill impact was limited to the street and dirt areas around the appearance point on a low traffic road near the 60 freeway.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Ather notification the new force main was shut back down. The areas around the spill were coned off. Vactor truck was brought on site to start clean up. Danger sewer signs were posted. The road was closed down to help with clean up. Once site was clean, the area was sprayed with a deluded chlorine solution.	Other (specify below)	Contractor Had to dig up to locate problem and make permanent repair.	Contractor Had to dig up to locate problem. Once found contractor was made to clean and video the line and provide the City with copies of the video.	Work started the day after the spill and a permanent repair was made on 9-11-24.	09/12/2024 16:00	Working with the contractor and on site collections personnel, the force main was exposed and a �window� was found cut on the top. Contractor, city inspectors, and engineers were brought in and it was determined that the window was cut for the purpose of videoing a section of the older existing force main that was to be tied into. It was determined that this job was done at the end of the day and the line was buried to allow traffic to flow again. Then it was determined that before the contractor made it back on site a different crew and foreman were put on the job. However, the problem with the �window� was never relayed to this new crew and foreman.	N												N													
2	2SSO10148	Active	Livermore City CS	Livermore City	896358	1.1	Certified	Anthony Smith	Acting Assistant Public Works Director		13-SEP-24	13-SEP-24	Monthly Category 3 Spill	W Jack London/ Livermore Outlets Dr	08/12/2024 16:02	08/12/2024 16:12	08/12/2024 15:34				Spill from manhole #WLS4B3F006, failed air relief valve gasket within manhole on force main.  Spill ponded in landscape and onto asphalt. See attachments	37.69622	-121.84237	Manhole; Other Sewer System Structure	Failed gasket on air relief inside of manhole		323	See attachments	N						220	Paved Surface; Unpaved Surface		See attachments	Y	37.69638	-121.84238	37.69625	-121.84233	37.69619	-121.84237	37.69628	-121.84238	08/12/2024 16:32	Volume Estimation- 5 gallons Area/Volume ponded sewage- 221.26 gallons Area/Volume ponded sewage-96.41 gallons	Start time based on first start time of pump from lift station (3:34pm) Determined failure happened between 3:34pm-3:47pm Spill end time based on time started to vac spill	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure		Air Relief Valve (ARV)/ Blow-Off Valve (BOV); Manhole		Other (specify below)	ARV- gasket	1	Spill contained within center median, impacted landscape area. 5 gallons spilled onto roadway but didn't make it to storm structure or curb/gutter	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		First responder shut pumps to lift station off at 4:13pm, called for additional support, spill was contained to landscape area, small amount onto roadway. Started vacuuming spill at 4:32pm.  Staff made confined space entry to close valve to ARV.  Area was cleaned using de-chlorinated water.  Took depth samples of absorbed spill impacted area.  ARV's currently being bypassed, waiting on parts for repair, removed 2  of soil, replaced with new landscape bark.	Repaired Facilities or Replaced Defect		ARV was just inspected/serviced during PM in April 2024.  Waiting on additional parts for repair. Repairs made Sept 10/2024		09/10/2024 12:47	Failure was determined to be on gasket of air relief valve.		Investigation completed Sept 10 2024	09/10/2024 12:49														N/A	Order additional back up parts for ARV's	ARV's are currently on an aggressive PM schedule	ARV has been repaired Sept 10 2024	ARV scheduled for repair, awaiting parts.  Repaired Sept 10 2024	N/A	Info within CMMS	N/A	Investigation completed Sept 10 2024	
4	4SSO10363	Active	Arcadia City CS	Arcadia City, Public Works Services Dept	896359	1.0	Work In Progress						Category 1 Spill	1412 S Santa Anita Ave	08/28/2024 11:59	08/28/2024 12:09	08/28/2024 12:04	08/28/2024 12:00	39-72830	05-SEP-24	The spill occurred outside of Montessori school in one manhole.	34.12349	-118.03119	Manhole			950	Our sewer/street team responded to the scene and created 3 dykes to prevent further flow from reaching the storm drain down stream. Our team unclogged the blockage and stop the overflow within 15 minutes. At the start of the unclogging process, wipes were observed and so are the predicted cause of the blockage. By 12:45pm the impacted gutters were cleared. By 1:08pm the impacted areas were sanitized. Reported to LAC Public Works and LA Regional Water Quality Control Board. Ticket #: 3972830 Next steps: Briget Arndell will reach out the nearby daycare center and homes with a sewer line connected to manhole #511MH051 to inform them of the damage that wipes have on the plumbing network and encourage changed behavior.			713	237	Los Angeles County's Public Works confirmed there was no trace of spill in their facilities. It did not reach surface water.	0	713	Drainage Conveyance System		n/a	Y	34.12349	-118.03119							08/28/2024 12:23	Reference sheet for calculating GPM An estimates 950 gallons spilled, divided by 19 minutes in duration equals 50 gallons per minutes spilled.	Sewer crew team reported their minutes/time on the job.	Debris from Lateral; Debris-Rags; Debris-wipes/Non-disposables		Lower Lateral; Manhole		Other (specify below)	TBD	0		N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Once the flow was reported, our sewer/street team responded to the scene and created 3 dykes to prevent further flow from reaching the storm drain down stream. Our team unclogged the blockage and stop the overflow within 15 minutes. At the start of the unclogging process, wipes were observed and so are the predicted cause of the blockage. By 12:45pm the impacted gutters were cleared. By 1:08pm the impacted areas were sanitized. Reported to LAC Public Works and LA Regional Water Quality Control Board. Ticket #: 3972830 to which they confirmed no spill was detected in their facilities	Other (specify below)	Next steps: Briget Arndell will reach out the nearby daycare center and homes with a sewer line connected to manhole #511MH051 to inform them of the damage that wipes have on the plumbing network and encourage changed behavior.	Next steps: Briget Arndell will reach out the nearby daycare center and homes with a sewer line connected to manhole #511MH051 to inform them of the damage that wipes have on the plumbing network and encourage changed behavior.																													
2	2SSO10115	Active	South San Francisco City CS	South San Francisco City	896363	1.3	Certified	David A. Bockhaus	Public Works Deputy Director		07-OCT-24	07-OCT-24	Monthly Category 3 Spill	139 Aldenglen Dr.	09/03/2024 11:51	09/03/2024 12:04	09/03/2024 10:54				The spill originated in front of 139 Aldenglen Dr. at sewer lateral due to mainline being plugged. The spill traveled across the sidewalk and entered the storm catch basin.	37.66145	-122.43005	Lower Lateral (Private)			261	Originated from private lower lateral cleanout in landscape area of 139 Aldenglan Dr. Traveled across the sidewalk where it entered storm drain. 	Y	36  rcp 	261				261	Drainage Conveyance System		Spill started at private lower lateral at 139 Aldenglen Dr. where it traveled across the sidewalk and entered the drainage conveyance system. It was recovered fully out of a storm manhole (SL833) on Oak Ave that the spill had not yet reached.	Y	37.65972	-122.43107							09/03/2024 12:16	The spill volume was estimated by the data collected from witnesses, pictures, measurements, volume estimation method and the upstream connections method.	The area of the spill that travelled across the sidewalk the volume estimation method was applied with measurements taken. The upstream connection method was also applied to calculate the volume and find the spill start time. 	Debris-General; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		44	The spill originated at 139 Aldenglen Dr. private lower lateral and spilled onto sidewalk where it then traveled across the sidewalk making its way into the storm conveyance system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Spill response included the flushing of the sewer mainline from downstream manhole (we2019) The Vac Con was setup at the storm manhole (sl833) as the spill had not yet made it that far. The storm system was flushed with 3x the amount of the spill with clean water.	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance		Put area on monthly inspections and added to biannual flush schedule.		09/03/2024 12:16	Upon clearing the plug general debris and FOG was determined to be cause of the blockage, once flow was returned and spill was cleaned the system was inspected, and was put on a monthly inspection schedule and a biannual flush schedule.		Put area on monthly inspections	09/05/2024 14:06														N/A	Added to biannual flush schedule	Increased from annual flushing schedule to biannual	N/A	inspected	N/A	N/A	N/A	Put area on monthly inspections	
5F	5SSO10744	Active	Mariposa PUD CS	Mariposa PUD	896381	1.3	Certified	Susan Wages	General Manager	07-SEP-24	12-SEP-24	12-SEP-24	Category 1 Spill	State Hwy 140 and 4th Street	09/06/2024 08:05	09/06/2024 08:16	09/06/2024 07:40	09/06/2024 11:51	24-5033		37.48365�N, 119.96415�W  The spill originated from a manhole that was damaged by a grinding machine during a Caltrans paving project.	37.48365	119.96415	Manhole			3300	Hwy was sloped to the curb gutter and therefore to the storm drain.	Y	Curb and gutter conveyance system to storm drain.	0	0	Discharge points are assumed due to vegetative debris and berry vines that fill the Mariposa Creek boundaries.	3300	0	Drainage Conveyance System that discharges to surface water		The spill traveled down the curb and gutter along the Hwy to the storm drain and discharged to Mariposa Creek.	Y	37.48365	119.96415							09/06/2024 08:55	Used online data from a study at the Eastern Municipal Water District and their visual results to make volume estimates.	Spill start time was estimated due to a conversation with the Caltrans Engineer.  The spill end time was documented with a time stamped photograph.	Damage by Others Not Related to Collection System Construction/Maintenance		Manhole		Polyvinyl Chloride (PVC); Vitrified Clay		66	3300 gallons of sewage discharged from storm drain to the Mariposa Creek.	N	Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow	Used a vacuum trailer to contain a portion of the spill within the manhole.  Manhole was blocked by debris from paving project.  The debris was cleared from the manhole and normal flow restored.	Contain sewage within the manhole using several vacuum trailers.  Remove dirt, rock and asphalt blockage from the manhole using a large vacuum truck that was capable of overcoming the incoming sewage and also vacuum up the debris from the manhole.  The spill did not contain paper or solids.  The water in the curb and gutter system dried quickly due to 100-degree temperatures.	Other (specify below)	Contractor to stop work immediately if a manhole is damaged or flow is obstructed during grinding and paving and notify emergency MPUD staff.	Spill was caused by paving contractor human error.	NA	09/06/2024 12:11	Contractor negligence which led to a poor decision to leave debris in the manhole and pave over it.  	N			Mariposa Creek	Stream/Creek		Mariposa Creek flows seasonally.  Small pools of water currently exist.	The green vegetation in the creek makes it difficult to view aquatic life.	Other (specify below)	Signs were posted to detour public access to Mariposa Creek, if any.	Mariposa Public Utility District	7	N	Y	75 yards upstream and 75 yards downstream of the estimated discharge location.	Water samples were analyzed for Total Coliform and E. coli										
6B	6SSO11126	Active	Barstow CS	Barstow City	896400	1.2	Certified	Wesley Cole Garrison	Plant Superintendent	09-SEP-24	11-SEP-24	11-SEP-24	Category 1 Spill	Dill Apartment Spill	08/28/2024 12:45	08/28/2024 12:50	08/28/2024 12:45			09-SEP-24	1900 Dill St. Manhole 977.	34.88	116.99	Gravity Mainline; Manhole	Corrective Action: Post CCTV revealed additional roots. High-pressure cleaning with root-cutting nozzle cut approximately 90% of the root. Root X treatment was deployed, after root X detention time, additional CCTV, cleaning if needed will be scheduled. CCTV inspections will be scheduled monthly until further notice. 		457	We received the call of the spill at 12:45 p.m. Sanitary sewer was spilling from manhole 977, and flowed into a nearby storm channel, within 20 feet from the manhole. The blockage was cleared within 30 minutes of receiving the call. The blockage was caused by root intrusion from a nearby salt cedar tree. 	Y	Concrete and piped storm channel. The spill only traveled approximately 2,206 feet out of approximately 4,196 feet of channel. Areas of the channel are difficult to access with the vacuum truck, and the spill was quickly evaporating due to temperatures exceeding 100 degrees Fahrenheit. Staff sprayed the entire channel of which, the spill reached with a chlorine solution disinfectant. 	69	388	NA	0	69	Drainage Conveyance System that discharges to surface water		1900 Dill Road (Dill Apartment) manhole 977.	Y	34.88459	-116.99476							08/28/2024 14:15	Calculated volume WxLxD x 7.48 gallons. 	Used our GIS system to calculate the length of the channel from the entry point to where it stopped, (see map attached). Took an average of the width of the flow times the an average depth. 	Root Intrusion		Gravity Mainline		Vitrified Clay		45	There was a temporary impact to the 8-inch mainline due to root intrusion, once the blockage cleared flow was restored to normal conditions. Outside of the temporary flow restriction, there were no environmental impacts. The entire channel was disinfected.  	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Returned Portion of Spill to Sanitary Sewer System		The spill stopped flowing in the channel approximately half a mile from surface water. The channel was then disinfected. 	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Schedule cleaning and CCTV frequencies. 	CCTV monitoring. Possible lining the segment of the pipe. 	08/28/2024 14:15	It has been determined that root intrusion from a nearby salt cedar tree, caused the blockage.  	N			Mojave River	River		Dry River. 	None. 	Other (specify below)	General Access. 	NA	0	N	N												
5F	5SSO10774	Active	Yosemite Valley CS	US Dept of the Interior Park Service	896423	1.3	Certified	Teri Austin	Deputy Superintendent		12-SEP-24	12-SEP-24	Monthly Category 3 Spill	Intersection of Curry Village Dr. and Southside Dr.	08/19/2024 05:15	08/19/2024 05:15	08/19/2024 05:15				Manhole at the intersection	37.73963	-119.57314	Gravity Mainline; Manhole			100	25 feet on roadway.	N		0				0	Paved Surface; Unpaved Surface		Paved and unpaved surfaces	N									08/19/2024 06:00	Operator on site estimated the volume.	Operator on site recorded the date and times.	Operator Error (specify below)	Pump left off.	Gravity Mainline		Other (specify below)	N/A	15	 	N	Cleaned Up (specify below)	Vacuum truck and disinfected area.	Vacuum truck and disinfected area.	Other (specify below)	Training	Training		08/19/2024 06:00	NA		NA	08/19/2024 06:00														NA	NA	NA	NA	NA	NA	NA	NA	NA	
5F	5SSO10779	Active	Tuolumne Meadows CS	US Dept of the Interior Park Service	896426	1.1	Certified	Teri Austin	Deputy Superintendent		12-SEP-24	12-SEP-24	Monthly Category 3 Spill	Secondary treated effluent forced main	08/27/2024 16:00	08/27/2024 16:00	08/27/2024 16:00				Secondary treated effluent forced main valve failed leaking effluent across an unpaved surface for approx 15 feet into the sewage treatment pond.	39.57714091	-119.37423597	Other (specify below)	Secondary treated effluent forced main valve failed leaking effluent across an unpaved surface for approx 15 feet into the sewage treatment pond.		100	Secondary treated effluent forced main valve failed leaking effluent across an unpaved surface for approx 15 feet into the sewage treatment pond.	N	 					100	Other (specify below)	Secondary treated effluent forced main valve failed leaking effluent across an unpaved surface for approx 15 feet into the sewage treatment pond.	 39.57714091, -119.37423597	N									08/27/2024 16:30	 Operator estimate	Operator estimate	Other (specify below)	Valve failure	Other (specify below)	Valve failure	Other (specify below)	Valve failure	70	Secondary treated effluent forced main valve failed leaking effluent across an unpaved surface for approx 15 feet into the sewage treatment pond.	N	Other (specify below)	Replace failed valve	Use a twist plug to seal valve.	Other (specify below)	Replace failed valve	Replace failed valve		08/27/2024 16:30	NA		NA	08/27/2024 16:30														NA	NA	NA	NA	NA	NA	NA	NA	NA	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	896445	1.5	Certified	Kent Vian	Asst. Deputy Director		21-OCT-24	21-OCT-24	Monthly Category 3 Spill	NOT# 40201152225 10445 FRIARS RD.	09/10/2024 13:54	09/10/2024 14:27	09/10/2024 13:52				THE DESCRIPTION OF THE SYSTEM LOCATION WHERE THE SPILL ORIGINATED CONSISTED OF TWO SPILL APPEARANCE POINTS. THE FIRST SPILL APPEARANCE POINT WAS FROM A MANHOLE LOCATED IN FRONT OF 10445 FRIARS RD. THE SECOND SPILL APPEARANCE POINT WAS INSIDE BUSINESS10445 FRIARS RD.	32.79089	-117.09858	Lower Lateral (Private); Manhole	NA	N/A	860	THE SPILL EXTENT AND BOUNDARIES WERE A STORM DRAIN MANHOLE LOCATED NORTHWEST OF 4307 VANDEVER AVE.	Y	THE DRAINAGE CONVEYANCE SYSTEM TRANSPORTING THE SPILL WAS A 24  CONCRETE UNDERGROUND PIPE.	760				817	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)	NA	THE SPILL EXITED THE MANHOLE, TRAVELED NORTHWEST INTO A STORM DRAIN IN THE MIDDLE OF THE ROAD, TRAVELED SOUTH ON RIVERDALE ST. AND THEN WEST ON VANDAVER AVE.	Y	32.79058	-117.09948	32.78769	-117.10153					09/13/2024 10:00	THE SPILL VOLUME ESTIMATIONS WERE CALCULATED USING THE VISUAL CALCULATED METHOD.	THE SPILL ASSUMPTIONS WERE ASSUMED WHEN THE CUSTOMER REPORTED THE OVERFLOW.	Debris-General	NA	Gravity Mainline	NA	Vitrified Clay	NA	63	THE SPILL'S IMPACT WAS INSIDE MIDAS COMING FROM THE BATHROOM AND TO THE STORM CONVEYANCE SYSTEM.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	NA	UPON ARRIVAL, A COMBO TRUCK SET UP CONTAINMENT ON THE OVERFLOWING MANHOLE WHILE ANOTHER TRUCK RELIEVED THE SPILL. CLEANUP WAS WASHING DOWN THE STREET AND STORM DRAIN, AND A RESTORATION CONTRATOR CLEANED UP THE BUSINESS.	Post Spill CCTV	NA	MANAGEMENT DETERMINED CONTRACTOR LEFT TEE CONNECTION INSTALLED ON THE DROP MAIN. MANAGEMENT HAD CONFINED SPACE CREW TO REMOVE THE TEE CONNECTION TO PREVENT FURTHER STOPPAGES.    		09/10/2024 09:50	THE SPILL CAUSE WAS A GENERAL DEBRIS BUILD-UP IN A TEE DROP MH 2 FT UPSTREAM LEFT BY THE CONTRACTOR.		None	09/11/2024 10:55														NA	MANAGEMENT HAD CONFINED SPACE CREW TO REMOVE THE TEE CONNECTION TO PREVENT FURTHER STOPPAGES.    	Not needed 	None	Yes, a confined space crew to remove tee connection to prevent further stoppages.    	None	Yes see attachment 	None	None	
6B	6SSO11151	Active	June Lake PUD CS	June Lake PUD	896179	3.1	Certified	Mamadou Diallo	CPO	23-AUG-24	11-SEP-24	11-SEP-24	Category 1 Spill	19 Willow	08/20/2024 21:57	08/20/2024 19:30	08/20/2024 19:30	08/20/2024 22:53	24-4719		37.764389, -119.104417 ; Location where spill entered Reversed Creek	37.764389	-119.104417	Gravity Mainline; Manhole		Spill appearance point into Reversed Creek from the manhole. Manhole became overwhelmed which caused the spill to overflow into the creek.	5130	Sewer main pipe was damaged by homeowner contractor during new home construction activities. Debris entered damaged section of the pipe which reduced flow within the sewer main. This break caused a slow fill of the excavation area. Manhole downstream became overwhelmed with dirt, debris, and wastewater which caused an overflow/spill into the creek.	N				Pictures of manhole that became overwhelmed, Spill point at Reversed Creek 	850	4280	Surface Water		Sewer manhole to Reversed Creek	Y	37.764261	-119.104299							08/20/2024 20:01	Spill duration time and volume dimensions between the manhole were the discharge occurred and entrance point of the creek	Contract worker estimations of duration of spill time	Damage by Others Not Related to Collection System Construction/Maintenance; Debris from Construction		Gravity Mainline; Manhole		Concrete		35	Still an ongoing investigation to determine the full impact. Water quality monitoring samples have been collected, waiting for results.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Top soil removal. Vactoring	Brought in Vactor from nearby district to remove wastewater from breakpoint. Tried to locate additional vactor to respond. Conducted rodding. Placed sandbags and straw waddles around breakpoint. Enlarged excavation area to allow for additional capacity/volume. Maintained communications. Contacted county and state OES. Topsoil removal and disposal.	Repaired Facilities or Replaced Defect		Unforeseeable event caused by a homeowner's contractor/construction activities. Broken pipe was repaired and inspected. Vactoring.	NA	08/20/2024 22:53	Conducted interview with on-site contractors/workers to determine that they had broken our sewer main.	Y	Water quality monitoring activities of Reversed Creek	09/30/2024 16:23	Reversed Creek	Stream/Creek		Small Creek	None observed	Temporary Restricted Use		NA	1	N	Y	Release point, upstream and downstream	Total Coliform, E. Coli, and Nitrate									Water quality monitoring activities of Reversed Creek	
2	2SSO10209	Active	Union S.D. CS	Union Sanitary District	896453	1.3	Certified	Jose Rodrigues	Collection Services Manager		12-SEP-24	12-SEP-24	Monthly Category 3 Spill	Enterprise ARV259912	09/04/2024 13:27	09/04/2024 13:26	08/29/2024 12:00				ARV easement area  See attachment 	37.52018	-122.05634	Manhole; Other (specify below)	Air Release Valve (ARV) float	N/A	138	During ARV PMs the crew arrived and noticed the unpaved ground around ARV manhole was found to be dry but stained, crew opened ARV hatch and noticed vault full of water.	N	N/A	0				138	Unpaved Surface	N/A	The unpaved area around the ARV manhole,  See page 1 of Spill Volume by Area Estimation Work Sheet 	Y	37.52013	-122.05646	37.52015	-122.05643	37.52027	-122.05648	37.52019	-122.05638	08/29/2024 15:00	We assumed start and end times because the spill was not active when USD staff arrived to perform the PM. During field investigation interviews only one out of three residents recalled any related information. We can only assume this was when the start time occurred  See attached data collection notes .	Measured volume is the methodology  See attachment .	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure	N/A	Air Relief Valve (ARV)/ Blow-Off Valve (BOV); Manhole	N/A	Other (specify below); Polyvinyl Chloride (PVC)	The threads on the ARV puck were stripped.	2	Dirt area in easement  See attachment .	N	Cleaned Up (specify below); Other (specify below)	Removed the soil that was contaminated.  See attached pictures 	 See attachments  cleanup / restoration of spill and data collection form.	Repaired Facilities or Replaced Defect	N/A	Modify ARV rebuild process to include inspection for fatigue of float mechanism		09/06/2024 14:30	 See attachment 		Debrief our staff on new process.	09/05/2024 15:30														N/A	Modify ARV rebuild process to include inspection for fatigue of float mechanism	Modify ARV rebuild process to include inspection for fatigue of float mechanism	N/A	Repaired and replaced defective ARV.	N/A	Added to our CMMS asset comments to reflect our modified process	Repaired and replaced defective ARV.	Debrief our staff on new process.	
2	2SSO10110	Active	Los Altos City CS	Los Altos City	896455	1.1	Certified	Grant Gabler	Maintenance Superintendent		13-SEP-24	13-SEP-24	Monthly Category 3 Spill	289 Quinnhill Rd	07/09/2024 21:12	07/09/2024 21:36	07/09/2024 21:10				Spill originated at the property line clean out located in front of 289 Quinnhill Rd. 37.362526, 122.108062	37.362526	122.108062	Lower Lateral (Private)	NA	NA	65	Spill originated at the property line clean out in front of 289 Quinnhill Rd. and traveled 365' down the curb line where it was contained in front of 285 Quinnhill Rd.	N	NA					65	Street/Curb and Gutter (2 3); Unpaved Surface		Spill originated at 37.362526, 122.108062 at the property line clean out in front of 289 Quinnhill Rd. and traveled 365' down the curb line where it was contained in front of 285 Quinnhill Rd.  The width of the spill was measured to be 1'.  	Y	37.362526	122.108062							07/09/2024 21:51	Area of the spill was measured to be 365' x 1' and assuming .03  and 80% affected.	Spoke with caller and witnesses for start time and visual observation for extent of spill 	Root Intrusion		Gravity Mainline		Vitrified Clay		70	Spill ran down paved curb and gutter and was contained 365' from appearance point. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Spill contained and was washed and vacuumed.	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Used CCTV post spill to determine roots to be the cause of the blockage.  Added segment to annual root cutting list.  		09/13/2024 08:07	Roots found at joint near manhole I3S-103		No	07/10/2024 10:00														No	Added segment to annual root cutting list.  	Added segment to annual root cutting list.  	No	Post spill CCTV	No	Yes	None	No	
2	2SSO10216	Active	West County WW District CS	West County Wastewater District	896459	1.2	Certified	Gordon Times	CSO Manager	12-SEP-24	24-SEP-24	24-SEP-24	Category 2 Spill	Hilltop Lake	09/10/2024 10:27	09/10/2024 11:03	09/10/2024 06:00	09/10/2024 11:40	24-5104		See Attached	37.98648	-122.32664	Gravity Mainline; Manhole			31000	See attached	N						0	Unpaved Surface		The spill pooled around MH and surrounding area and seeped into the ground.	Y	37.98613	-122.32684	37.98656	-122.32672	37.98636	-122.32684			09/10/2024 11:10	We made every effort to find witnesses to pin down start time. We interviewed witnesses that said they walk around the lake daily and didn't notice the spill in the afternoon the day before. Our best guest is it started early that morning around 6AM and we ended it around 11:10AM. We estimated the spill at around 100gpm.	See above	Root Intrusion		Gravity Mainline; Manhole		Vitrified Clay		38	The spill was centralized around the MH in a circumference of about 75'x45' and seeped into the ground.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		The area was blocked off from pedestrians while we staged and used equipment to clear the blockage. We sucked up the sewage that had pooled and removed all visible contaminants. We also scraped some of the soil and sprayed a disinfection solution.	Adjusted Schedule/Method of Preventive Maintenance; Post Spill CCTV		The line was CCTV inspected and we discovered roots in one joint. The roots were removed. We will also install a flow level monitoring device that will alarm us if the line plugs in the future.	CCTV Inspection--9-10-24 Root Removal--9-11-24 ADS Level Monitor Installation--9-25-24	09/11/2024 14:00	See 10b.	N												N													
2	2SSO10170	Active	Richmond City CS	Richmond City	896469	1.2	Certified	Mary Phelps	Water Resource Division Manager	12-SEP-24	16-SEP-24	16-SEP-24	Category 1 Spill	1302 Sanderling Is	09/09/2024 12:23	09/09/2024 12:58	09/09/2024 11:23	09/09/2024 13:02	24-5087		Power breaker tripped at sanitary sewer lift station resulting in an overflow from the private lateral cleanout at 1302 Sanderling Is (See attached photos)	37.90944	122.38133	Lateral Clean Out (Private)			95	The private lateral runs exposed beneath 1302 Sanderling Is which is elevated above the SF Bay (see attached photos).	N				See attached photos	95	0	Surface Water		Power from pump station caused spill from lateral at 1302 Sanderling Island. Crews responded to restore power and mitigate as much of spill as possible. Due to closeness to waterway, most of spill was discharged to San Francisco Bay.	Y	37.90952	-122.38136							09/09/2024 11:23	Rate of discharge x gallons/minute	Spill start time estimated from interviews with area residents. Spill end time reported when spill stopped discharging and clean-up could commence.	Pump Station Failure - Power		Pump Station - Power		Other (specify below)	Pump Station	30	Pump station power tripped causing pump station to shut down and overflow causing discharge directly into San Francisco Bay.	N	Mitigated Effects of Spill (specify below); Other (specify below)	Reset power to pump station and cleaned up contaminated area as much as possible.	Reset power to pump station and cleaned up contaminated area as much as possible.	Other (specify below)	Will work to have pump station system added to Richmond's SCADA system to prevent issue from recurring.	Cleaned up as much of discharge as possible. Will add pump station system to Richmond's SCADA system to prevent issue from recurring.	Meeting with Veolia scheduled for 10/14/2024 to discuss SCADA options.	09/09/2024 12:11	Power system failure. Will schedule meeting with Veolia to have system added to Richmond's SCADA system to avoid issue from recurring.	N		10/14/2024 12:12	San Francisco Bay	Ocean		San Francisco Bay	None	Other (specify below)	None	City of Richmond	0	N	N	N/A	N/A										
9	9SSO10703	Active	South Coast Water District CS	South Coast Water District	896492	1.2	Certified	Daniel B. Guerra	Collection Supervisor		17-OCT-24	17-OCT-24	Monthly Category 3 Spill	31865 Circle Drive	07/30/2024 10:08	07/30/2024 10:20	07/30/2024 09:30				District manhole S1156.	33.49979	-117.74266	Manhole	N/A	NONE	317	Sewage overflowed from manhole S1156 and pooled in yard. Some sewage flowed to driveway and homeowner set up garden hose to syphon sewage from grass area over to yard drain. The yard drain flowed to storm drain with diversion that returned sewage to district collection system.	Y	Storm drain had flow diversion structure that diverted to sewer system.	50				216	Drainage Conveyance System; Paved Surface; Unpaved Surface		Sewage overflowed from manhole S1156 and pooled in yard. Some sewage flowed to driveway and homeowner set up garden hose to syphon sewage from grass area over to yard drain. The yard drain flowed to storm drain with diversion that returned sewage to district collection system.	Y	33.49976	117.74275	33.49978	33.49978	33.4997	33.4997			07/30/2024 12:30	Visual estimates of spill area and depth, approximation of flow rate through syphon hose times duration.	Verbal report from homeowner for spill start time. Time that field crew cleared blockage for spill end time.	Debris-General		Gravity Mainline		Vitrified Clay	N/A	70	Approximately 100 gallons of the spill soaked in the grass area and could not be recovered. The remainder was returned to the collection system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	Crew used combination truck to clear blockage and collect overflow and wash down water.	Post Spill CCTV	N/A	Collection staff re-inspect the sewer line in 3 months and determine if additional steps are needed based on our findings.		07/30/2024 12:30	See attachment		We will reinspect the pipe in 3 months to monitor the flow condition.	07/30/2024 12:30														NONE	We plan on inspecting the sewer line 3 months from the spill and maintenance modification will be determined at that time.	During the spill event, we discovered that staff had been cleaning the line from the upstream sewer manhole (S1156) due to limited access to S1166. S1166 is an 8  drop pipe with a Tee fitting connecting to the sewer main. Moving forward, we will clean from S1166 using a nozzle, guided into the Tee fitting with an extension tool. This method should improve the cleaning of the sewer pipe. 	NONE	CCTV inspected the asset to ensure the blockage was completely removed and the pipe was not damaged. 	NONE	During our spill debrief on 7/31/24 we spoke with staff detailing how we will clean Sewer line S1166-S1156 moving forward.	None - Spill response went well.	We will reinspect the pipe in 3 months to monitor the flow condition.	
2	2SSO10145	Active	Joint C&H-Cvsd Biological CS	Crockett Community Services District	896501	1.3	Certified	James G Barnhill	Sanitary Dept manager		13-SEP-24	13-SEP-24	Monthly Category 3 Spill	Marina line	09/10/2024 14:05	09/10/2024 14:05	09/10/2024 11:00				The spill occurred at manhole MH M-00-02A, which is located in a bowl surrounded by shrubbery and trees in a non-traveled area. The spill was naturally contained by the bowl-shaped landscape, forming a puddle that was about 18'x15'x3  deep. The volume of the spill was estimated to be 500 gallons at this appearance point.	38.05605	-122.22671	Manhole		MH Lat 38.05622 Long -122.22809.  A 2nd appearance point (25gal) was the first to be found by the hydro crew at 1405hr.	525	1st appearance was a puddle 18'x15'x~3  avg deep puddle (500gal). Isolated by bowl-shaped landscape and in an untraveled area of woods/shrubs.  2nd appearance was a puddle 5'x8'x~1 avg deep puddle, (25gal) located in a gravel lot.	N						525	Unpaved Surface		310 total square feet of puddled sewage located in two appearance points. Both puddles remained in their footprint and maintained that containment.  Areas were both taped and health hazard signs were posted.    1st appearance:  Lat 38.05605  Long  -122.22671 2nd appearance: Lat 38.05622 Long -122.22809	Y	38.05605	-122.22671	38.05622	-122.22809					09/10/2024 14:25	Puddle size and depth, Upstream connections and their total hourly flow, and eyeball estimation by responder.  7 yards of contaminated soil was removed.	System volume capacity to fill from point of blockage upstream, including the two overfilled MH's. Pipe volume upstream to unfilled MH was also included in volumetric calculation in order to calculate spill start time. estimated time that blockage caused the backup to begin filling collection system is 2130hr on Sept 9, 2024. Spill began appearing on surface estimated to be 1100hr Sept 10, 2024 	Debris-Rags		Gravity Mainline		Other (specify below)	HDPE	14	1st appearance:  18'x15' spill puddle caused area to be taped and barricaded off with caution tape, sandwich board barriers, and posted hazard signs. Tape was attached to surrounding trees as well. This is an unoccupied and inaccessible area to the public  2nd appearance:  5'x8' spill caused area in gravel lot to be taped off to prevent cars and people from trampling on it. area that was taped was approximately 45'x14', tape attached to existing posts at corners of area, sandwich board barriers with hazard signs were attached to the barriers and the permanent posts. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow		Flow was restored and puddles were contained in their own footprint and did not flow out.  Areas were secured from vehicle traffic and foot traffic.  Both areas were cleaned using excavator and 7 total yards of contaminated soil and brush and gravel were hauled to drying beds for disposal. Both areas were sprayed with bio-enzyme before signage was fully removed. Gravel area was re-surfaced with new base gravel. 	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source		Dead Fish prior inspected for grease interceptor maintenance and operations.  Inspector found restaurant to be  well within  compliance.  Adjusted hydro from 4mo to 3mo.		09/11/2024 15:08	Hydro crew identified blockage to be caused by rag or rags, which built up tissue blockage mixed with fog. 		None	09/13/2024 12:59														na	na	adjusted hydro from 4mo to 3mo	na	na	na	na	na	None	
8	8SSO10641	Active	Yorba Linda Water District CS	Yorba Linda Water District	896509	1.3	Certified	Jeff McDonald	Maintenance Superintendent	16-SEP-24	16-SEP-24	16-SEP-24	Category 1 Spill	18001 Yorba Linda Blvd, Yorba Linda, CA 92886	09/08/2024 13:50	09/08/2024 14:05	09/08/2024 13:45				Spill appeared from a SSMH located on Yorba Linda Blvd approximately 420' East of Eureka Ave (33�53'18.6 N 117�49'07.6 W).	33.88848	-117.81878	Manhole			150	The spill appeared from a SSMH located in the number 1 lane Eastbound Yorba Linda Blvd approximately 420' East of Eureka Ave. The spill travelled southerly across two additional vehicle lanes and into a curb and gutter. The extent of the wetted surface appears exaggerated due to the constant vehicle traffic in the area. The on-call person received six calls about the spill in rapid succession and was relatively close by. The on-call person placed a rubber mat and sandbags over a storm drain catch basin. The spill then stopped on its own, indicating that there was an intermittent blockage that had relieved itself. A crew was called in to clean and televise the affected sewer gravity mains and manholes.	Y	The spill reached a separate storm drain catch basin located at the curb and gutter on the South side of Yorba Linda Blvd at Condie Way.	0	150	The spill reached a separate storm drain catch basin located at the curb and gutter on the South side of Yorba Linda Blvd at Condie Way. The final outfall location is not known at this time, but is likely the Santa Ana River.	150	0	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Groundwater Infiltration Basin or Facility; Paved Surface; Street/Curb and Gutter (2 3)		The spill reached a separate storm drain system. The final destination of the spill is not known at this time, but it likely a portion of the Santa Ana River, or a groundwater infiltration basin or facility depending on how the flows are being diverted or modulated along that particular conveyance channel.	N									09/08/2024 14:15	The height of the water column appearing from a single pick-hole/vent-hole on the manhole cover was cross-referenced with the sewer spill estimation guide (OC Area WDR Steering Committee, Feb 2014) to determine the approximate gallons per minute rate of discharge. The gallons per minute rate of discharge was multiplied by the total number of minutes the spill was active to determine the total volume of the spill.	The on-call technician's measurements, pictures, location, timing, and approximate number of service connections were all factored into the determination of the estimated spill volume.	Debris from Lateral		Gravity Mainline; Manhole	A piece of 4  dia. CIPP material became wedged in the exiting gravity mainline at a downstream sewer manhole.	Vitrified Clay		60	The spill reached a separate storm drain system. The final destination of the spill is not known at this time, but it likely a portion of the Santa Ana River, or a groundwater infiltration basin or facility depending on how the flows are being diverted or modulated along that particular conveyance channel.	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow		The on-call technician began receiving a series of calls alerting them to a possible spill. The technician was already in the service area and had arrived in a very short amount of time. When the technician arrived, he placed a rubber mat and sandbags over a nearby storm drain catch basin to try and contain the flow. Almost immediately after placing the mat and sandbags, the technician noted that the spill had stopped and that the blockage appeared to have relieved itself. OCHCA and OC Public Works was notified. A YLWD crew was called in to hydro-jet and CCTV the affected sewer gravity mains and manholes. Insufficient maps and the large diameter of the storm drain would have placed crews in an unsafe position to work within the storm drain network.	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		The majority of the spill containment and corrective actions took place shortly after the spill. A thorough CCTV inspection the following day revealed a piece of 4  dia. CIPP lining material was still wedged in the exiting gravity main at the downstream manhole. A confined space entry was performed to remove the offending piece of CIPP and a full CCTV inspection was conducted. A post-incident briefing has been scheduled with the maintenance crews on 9/26/2024.	9/8/2024 - Technician first notified of spill. Technician responded and blocked storm drain catch basin. Called crew to operate equipment and clear the sewer line. OCHCA and OC Public Works notified. Flow restored and situation stable.  9/9/2024 - Performed a confined space entry to remove a piece or 4  dia. CIPP lining material from the exiting gravity main at the downstream sewer manhole. CCTV resumed for the affected gravity main sections to confirm that no additional structural or maintenance defects remained.  9/26/2024 - Post-spill assessment conducted with the maintenance crews.	09/08/2024 08:31	On 9/9/2024, it was determined that a piece of 4  dia. CIPP lining material was still wedged in the exiting gravity main section at the downstream manhole from the spill location. A confined space entry was performed to remove the piece. At this time, it is still unclear where the offending piece of CIPP material came from. Further CCTV is needed.	Y	Further CCTV work is needed to inspected the upstream gravity main sections to determine where the offending piece of 4  dia. CIPP material came from.	09/26/2024 08:30	Santa Ana River	Other (specify below); River	Possibly the Santa Ana River or a retention basin, depending on how flows are being diverted at the time.	Richfield Channel, Atwood Channel, possibly Santa Ana River or retention pond depending on the current diversion of flows.	Not conducted.	Other (specify below)	<50,000 gallons. No samples collected. Public access impact unknown.	Unknown.	0	Y	N	<50,000 gallons. No samples collected.	<50,000 gallons. No samples collected.									Further CCTV work is needed to inspected the upstream gravity main sections to determine where the offending piece of 4  dia. CIPP material came from.	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	896519	1.4	Amended	Kent Vian	Asst. Deputy Director		21-OCT-24	21-OCT-24	Category 2 Spill	NOT-40201153671-FUTURA ST & MISTRAL PL.	09/15/2024 17:18	09/15/2024 17:48	09/15/2024 17:17	09/15/2024 19:49	24-5216		 THE SPILL ORIGINATED FROM MANHOLE#8 EQ#10142646. CREWS WERE ABLE TO RELIVED AND REMOVE HEAVY ROOTS FROM THE MANHOLE AND THE MAIN. GPS COORDINATES ARE 32.94648-117.22337.	32.94648	-117.22337	Gravity Mainline; Manhole	N/A	N/A	1800	THE SPILL BOUNDARIES ARE THE MANHOLE#8, WHERE WE REMOVED HEAVY ROOTS FROM THE WALLS, BASE, AND 8  MAIN. IT EXTENDED TO THE STREET, CURB, AND STORM DRAIN.	Y	THE DRAINAGE CONVEYANCE SYSTEM THAT TRANSPORTS THE SPILL IS MADE OF CONCRETE. THE DIAMETER IS UNKNOWN, BUT WE WERE ABLE TO CAPURED ALL SEWER SPILL AND RETURN THEM TO THE SYSTEM.	1620	180			1620	Drainage Conveyance System; Street/Curb and Gutter (2 3)	N/A	THE SPILL BOUNDARIES APPEARANCE POINT WAS DOWN SOUTHWEST BOUND INTO THE STREET, CURB, AND STORM DRAIN. GPS COORDINATES ARE 32.94648-117.22337.	Y	32.94648	-117.22337							09/15/2024 17:53	THE ESTIMATION IS CALCULATED BY VISUAL METHOD.	THE SPILL START TIME IS WHEN THE DISPATCHER RECEIVES THE CALL FROM THE CONSUMER REPORTING THE SPILL.	Root Intrusion	N/A	Gravity Mainline; Manhole	N/A	Polyvinyl Chloride (PVC)	N/A	39	THE SPILL IMPACT WAS TO THE STREET, CURB AND STORM DRAIN	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	N/A	CREWS RESPONDED, INVESTIGATED, RELIVED, TRACKED DOWN THE FINAL DESTINATION, RETURNED THE SEWER SPILL TO THE SYSTEM, AND WASHED DOWN THE STREET, CURB AND THE STORM DRAIN.	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause	N/A	MANAGEMENT INVESTIGATIONS DETERMINED INSPECTIONS WERE MISSED DUE TO OPEN NOTIFICATIONS (WORK ORDERS) WITH EPM (A SISTER DIVISION). INSPECTIONS ARE NOW BACK ON THE SCHEDULED MAINTENANCE PROGRAM.	NOT AT THIS TIME.	09/16/2024 10:30	MANAGEMENT DETEMINED INSPECTIONS MISSED DO TO OPEN NOTIFICATIONS WITH EPM. 	N	NONE	09/16/2024 12:03										N												NONE	
5S	5SSO11015	Active	Nw Regional Waste Disp Fac CS	Lake Cnty	896561	1.1	Certified	Steven Phillips	Utility Systems Compliance Coordinator		18-SEP-24	18-SEP-24	Monthly Category 3 Spill	6858 Frontage Road, Lucerne, CA	09/18/2024 06:00	09/18/2024 06:00	09/18/2024 06:00				Trash pump failure on bypass. 	39.0721	-122.7819	Pump Station		None	733	Spill was contained within the existing paved & dirt road near lift station #10.	N		733				733	Paved Surface; Unpaved Surface		Spill was contained within the existing paved & dirt road near lift station #10.		39.072	-122.7819							09/18/2024 06:00	Surface area measurements x estimated time x estimated flow rate	Area Superintendent driving by noticed the spill happening 	Pump Station Failure - Power		Pump Station - Power		Concrete		45	Spill was contained within the existing paved & dirt road near lift station #10. Spill did not enter a water coarse or water body.	N	Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Returned All Spill to Sanitary Sewer System		Spill volume was vacuumed up using a vac truck, lime treated, and then surface was flushed and re-vacuumed. Spill warning signs were placed at site.	Adjusted Schedule/Method of Preventive Maintenance		Schedule adjusted to inspect this lift station daily.		09/18/2024 06:00	Cam lock screw came loose causing the trash pump to fail. This has been repaired.		None	09/18/2024 15:57														None	None		Schedule adjusted to inspect this lift station daily.	N/A	N/A	N/A	N/A	None	
2	2SSO10216	Active	West County WW District CS	West County Wastewater District	896565	1.3	Certified	Gordon Times	CSO Manager		25-NOV-24	25-NOV-24	Monthly Category 3 Spill	900 Brookside Dr. Richmond Ca. 94806	09/15/2024 11:46	09/16/2024 12:30	09/15/2024 11:35				The spill location is a business with a dirt and gravel lot. It traveled approximately 250 ft and was approximately 8 ft wide. 	37.96536	-122.35982	Lateral Clean Out (Private); Manhole			220	The spill traveled approximately 250 ft and was approximately 8 ft wide. 	N						80	Unpaved Surface		The was contained in the unpaved parking area at this location.	Y	37.96542	-122.3597							09/16/2024 05:45	The spill was estimated by use of the bucket spill estimation method.	We recently attended a workshop where spill estimates	Debris-General; Debris-Rags; Vandalism (specify below)		Gravity Mainline		Ductile Iron		61	The spill impacted the ground in the parking area.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		The spill was caused vandals opening the lid, placing 5 gallon buckets, clothing , a sleeping bag, a toilet seat, and rags into the manhole.	Other (specify below)	Change manhole cover.	We plan to replace the manhole cover with a locking lid.		09/16/2024 07:20	We noticed a homeless encampment near our manhole and that our manhole cover had been propped open. We determined that the vandalism was caused by someone at that camp. 		We're looking at ways to keep people away from this manhole.	09/19/2024 08:00														N/A	We plan to replace the manhole cover with a locking lid.	The schedule or maintenance does not need to be adjusted.	The sanitary sewer asset does not need to be rehabilitated or replaced.	The asset was inspected and is on it's normal operating condition.	The  asset does not need to be replaced	We've acquired the locking manhole cover.	There is no need to modify response activities	We're looking at ways to keep people away from this manhole.	
2	2SSO10095	Active	Benicia City CS	Benicia City	896572	1.2	Certified	John Gant Jr	Field Utilities and Streets Supervisor		15-OCT-24	15-OCT-24	Monthly Category 3 Spill	90 First St	09/18/2024 14:05	09/18/2024 14:05	09/18/2024 14:05				Spill originated from cleanout north of the stated address	38.04458	-122.16196	Lateral Clean Out (Public)			750	Spill originated from cleanout north of the stated address	N						750	Unpaved Surface		Unpaved surface north of stated address	Y	38.04458	-122.16196							09/18/2024 14:18	Volume calculation of spill length x width x depth x 7.48 and visual calculation based on sewer overflow reference sheet from Metropolitan Wastewater Dept.	City employee was present at the time the spill began	Fats, Oil and Grease (FOG)		Gravity Mainline		Other (specify below)	SDR 35	30	N/A	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Cleared blockage, vacuumed area where spill occurred, washed down area and vacuumed wash down water. Returned to sanitary system. 	Added Sewer to Preventive Maintenance Program; Post Spill CCTV		Increase scheduled cleanings and CCTV of sewer line. 		09/18/2024 16:30	Cause of blockage in sewer main was due to grease. Grease was observed while clearing the blockage as well as while cleaning the line afterwards.		N/A	09/18/2024 16:30														N/A	N/A	Increase to quarterly cleaning	N/A	N/A	N/A	N/A	N/A	N/A	
5S	5SSO10901	Active	City of Sacramento Utilities CS	Sacramento City	896580	1.0	Work In Progress						Monthly Category 3 Spill	5617 Capstan Way Sacramento, Ca. 95822	08/12/2024 19:17	08/12/2024 21:16	08/12/2024 19:17				The spill appearance point is a manhole in the street, in front of the spill address.	38.52534	-121.52348	Manhole			430		Y		430				430	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)															Root Intrusion		Gravity Mainline		Vitrified Clay		67		N																																			
5S	5SSO10901	Active	City of Sacramento Utilities CS	Sacramento City	896582	1.1	Certified	Kevin Guerra	Superintendent		20-SEP-24	20-SEP-24	Monthly Category 3 Spill	5617 Capstan Way Sacramento, Ca. 95822	08/12/2024 19:17	08/12/2024 21:16	08/12/2024 19:17				The spill appearance point is a manhole in the street, in front of the spill address.	38.52534	-121.52348	Manhole			430	The spill left the manhole in the street and traveled East to the gutter pan and then North to the drain inlet where it entered the conveyance system.	Y	The spill entered a drain inlet that went to a drainage gravity main.  The mains in the system travel to a sump station several miles away that pumps to the Sacramento River.	430				430	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		The spill left the manhole in the street and traveled to a drain inlet nearby. It entered the drainage gravity system and traveled 5 main segments to the east where it was recovered from a Drainage Manhole and returned to the sewer system.	Y	38.52557	-121.52346	38.52653	-121.52395	38.52675	-121.52284	38.52564	-121.52017	08/12/2024 22:45	The spill on the ground was measured and the numbers were entered into a spill calculator that estimates volumes. The piping lengths and sizes were inputted into another calculator along with depths of liquid in each manhole to estimate what was removed from the drainage system. These numbers were added together to to get the estimated total of the spill.	The person who reported the spill was not available to answer questions, so residents near the appearance point and the drain were interviewed. They all stated they did not see the spill before the time it had been reported so we used the call time as the start time. The end time was when the responder unplugged the main, and was documented by them.	Root Intrusion		Gravity Mainline		Vitrified Clay		67	There were no impacts to service or the environment from this spill.	N	Cleaned Up (specify below)		On arrival the  spill had already reached the drainage system and the supervisor did not have anything to contain the spill. He took pictures and moved on to tracking down the spill where the responder on arrival set up to contain it in the conveyance system. The spill area was washed down and a Jet/ Vacuum truck was set up at the end point to collect the spill and return it to the sewer system.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Roots were determined to be the cause so this main was added to a root abatement work order. It has already been rodded to remove the roots.		08/13/2024 00:30	The Main was CCTV'd after the spill and it was determined that roots was the cause of the spill. The history of the main showed it being on a 5 Year cleaning schedule with no previous root issues. This will now be rodded annually and the cleaning schedule will remain the same.. 		None	08/14/2024 15:35														N/A	N/A	Main was added to a Rodding work order.	N/A	N/A	N/A	N/A	N/A	None	
5S	5SSO11028	Active	SMD No. 1 CS	Placer Cnty Dept of Facility Services	896583	1.3	Certified	Robin Mahoney	Utility Program Manager		27-SEP-24	27-SEP-24	Monthly Category 3 Spill	Bell Rd and Heritage Oak Pl	08/21/2024 13:55	08/21/2024 14:07	08/21/2024 13:48				AD3-91 Manhole	38.941887	121.098809	Manhole			810	The curb and gutter drained to a storm drain that was blocked with dirt and grass.	Y	The curb and gutter drained to a storm drain that was blocked with dirt and grass.	750				750	Drainage Conveyance System		The first set of long-lat is the storm drain inlet; the second set is the end of the drainage system where we cleaned from.	Y	38.94186	121.09738	38.94249	121.09749					08/21/2024 15:30	The SSO was estimated at 27 gallons per minute, based on the Placer County and City of San Diego spill estimation gauge. 	The duration of the SSO was determined to be 30 minutes, as reported by a witness who observed the spill shortly after it began, with the end time noted by County staff. The end time is after clean up activities were performed.	Debris-Rags; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Manhole		Polyvinyl Chloride (PVC)		39	None	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	CCTV inspection for cause	We responded with multiple vacuum trucks and were able to clear the blockage, wash down, and capture all the washdown and spill.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Post Spill CCTV	Location has been placed on a quarterly  hotspot  check	The spill was close to the County yard. We were able to respond quickly and set up a Hydro to relieve the blockage. We set up 2 vacuum trucks to start the cleanup upon arrival. After the SSO was relieved, we washed down the street and hydro cleaned the storm drain. The line was CCTV'd to make sure the line was clear. The sewer was returned to the sewer system and the soil was dumped at the County drying bed. 		08/21/2024 15:45	The storm drain was blocked with dirt and grass.		N/A	08/21/2024 15:45														N/A	Location has been placed on a quarterly  hotspot  check.	Quarterly checks	N/A	Post CCTV of line and removal of dirt and grass blockage.	N/A	N/A	We are actively conducting outreach for preventative maintenance of individual sewer systems and proper disposal of items to all businesses upstream of the spill location.	N/A	
2	2SSO10143	Active	Homestead Valley Sanitary Dist CS	Homestead Valley Sanitary District	896586	1.1	Certified	Bonner Beuhler	Manager		19-SEP-24	19-SEP-24	Monthly Category 3 Spill	RH 100.21	09/11/2024 19:42	09/11/2024 19:55	09/11/2024 17:15				RH 100.21 Located an side of Homestead Blvd. below 15 Loring Avenue Mill Valley, CA	37.90604	-122.54498	Manhole	Rod Hole (12 inch access cover)		250	Spill from rod hole at side of road into dirt culvert along roadside	N		0				0	Unpaved Surface		dirt ditch along side of road										09/11/2024 20:55	Visual and estimated connected homes upstream of system. Estimate of the flow in line, as stoppage was partial. No volume recovered as it went to unpaved surface	Visual and connected homes, time based on reporting time and visual of spill	Other (specify below); Root Intrusion	Plastic water bottle (like Arrowhead) lodged in pipe. Televised next day and found evidence of roots also. Stoppage was partial because there was still substantial flow in sewer main and stoppage cleared as soon as cleaning tool hit the water bottle. It was the only thing found in the down stream MH. Manhole had a sand trap in it to trap any roots or debris.	Gravity Mainline		Vitrified Clay		75	Spill confined to dirt culvert on side of road. Cleaned up solids and toilet paper.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow		Spill was confined to side of the road culvert. Raked up and bagged all solids/toilet paper and contaminated grass/leaves, bagged and removed	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		Line is in the last 5% of district sewer lines scheduled for replacement in 2025		09/12/2024 14:47	Televised sewer line to determine condition. Cleaned sewer line		No	09/12/2024 14:47														No	On a 3 year cleaning cycle. Would have made it to the scheduled cleaning if debris had not been placed in sewer	No, stoppage was caused by someone putting a plastic water bottle that lodged in pipe	Line is scheduled for replacement in 2025	Cleaned sewer with rodder	Scheduled for replacement 2025	Will bring to Board of Directors at September 2024 meeting	None	No	
4	4SSO11423	Active	Long Beach Water Dept. CS (SSO program)	Long Beach City, Water Dept	896589	1.1	Certified	Jennifer Rojas	Senior Director 		11-OCT-24	11-OCT-24	Monthly Category 3 Spill	2777 Long Beach Blvd Long Beach CA	09/04/2024 08:31	09/04/2024 10:02	09/04/2024 08:31				The spill originated from a Long Beach City sewer manhole located on the street.	33.80734	-118.18965	Manhole			520	The spill originated from the city sewer manhole and flowed down the street's curb and gutter into a Long Beach storm drain catch basin. It then traveled through the storm drain pipe into another catch basin. The response crew promptly implemented containment measures to prevent further spread of the spill.	Y	The spill affected the Long Beach public Works gutter catch basin. This catch basin is connected to a storm drain and a storm drain manhole.	300				520	Drainage Conveyance System; Street/Curb and Gutter (2 3)		The sewage exited the system at the city sewer manhole on Long Beach Blvd and traveled 350 feet down the street curb and gutter into the Long Beach storm drain catch basin. From there, it flowed through the storm drain pipe into another storm drain catch basin. Sandbags were strategically placed to contain the spill at the street curb and gutter. The two storm drain catch basins collected the spill, and Ocean Blue was able to vacuum and clean the street gutter and conveyance system. 	Y	33.80653	-118.18954							09/04/2024 10:15	The spill volume was estimated based on the overflow rate from the manhole and the spill duration. Upon arrival, it was observed that the manhole was overflowing at a rate of 5 gallons per minute. The spill start time was estimated to be 8:31 AM, based on when one of our Long Beach Utilities Water Division employees discovered it. The spill was stopped by 10:15 AM, resulting in a total duration of 104 minutes. By multiplying 5 GPM � 104 minutes, the total spill volume was calculated to be 520 gallons. 	The spill start time was estimated based on the time recorded by the Long Beach Utilities Customer Service operator, who first discovered the spill at 8:31 AM. The spill end time was determined when the cleaning crew arrived and successfully stopped the overflow at 10:15 AM.	Debris-General		Gravity Mainline		Vitrified Clay		79	The sewer spill reached the storm drain and gutter. due to the prompt response and clean up 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		1. Spill Containment: A sewage overflow from the city sewer manhole resulted in a spill of approximately 520 gallons. Containment measures, such as deploying barriers were implemented to prevent the spill from spreading beyond the affected area. 2. Cleanup Efforts: Ocean Blue Environmental initiated the clean up operations for the spill on the  street and in the conveyance system. A pressure washer and a vacuum truck were used to clean up the 520 gallons of sewage.        	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		The corrective actions for the spill included immediate containment and cleanup efforts. Containment measures were implemented promptly to prevent the spill from spreading beyond the affected area. Ocean Blue Environmental conducted the cleanup operations, using a pressure washer and a vacuum truck to remove the 520 gallons of sewage from the street and the conveyance system.		09/04/2024 14:00	A post-CCTV inspection was conducted on September 5, 2024, to determine the cause of the mainline stoppage. The inspection revealed heavy debris in the line as the source of the blockage. To resolve the issue, the pipe segment was thoroughly hydro-jetted, effectively restoring normal wastewater flow.		There is no ongoing investigation.	09/05/2024 09:30														The Long Beach Health Department was promptly notified of the incident. 	We have a 2-year preventive Sewer Maintenance Program to ensure the long-term health and functionality of our sewer system.	We will proceed with our preventive maintenance program for this pipe segment and ensure that the cleaning is completed according to the schedule.	There is no planned rehabilitation or replacement of this pipe segment.	CCTV Inspections were conducted in order to identify the cause and precise location of the debris blockage. Once the cause and location were determined, appropriate measures were taken to ensure a thorough cleaning of the blockage. 	None planned on this segment of mainline.	No modifications have been made to the system or operating procedures following the spill. The sewer pipe segment where the spill originated was thoroughly inspected to determine the cause of the stoppage.	We will continue following our spill response procedure for containment and clean-up efforts.	There is no ongoing investigation.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	896590	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2		25-SEP-24	25-SEP-24	Monthly Category 3 Spill	1228 Broadway, Oakland Ca	09/15/2024 12:03	09/15/2024 12:56	09/13/2024 12:00				Sewage overflowed from 4  plumbing pipe inside the basement of the building/structure where it was contained.	37.80332	-122.27156	Inside Building or Structure			127	Sewage overflowed from 4  plumbing pipe inside the basement of the building/structure where it was contained.	N						127	Building or Structure	Basement of building/structure	Sewage overflowed from 4  plumbing pipe inside the basement of the building/structure where it was contained.										09/15/2024 13:25	Calculated volumes: 35'L x 20'W x .02'D x 7.48-gal = 105 gallons Place with bigger depth amount: 5'L x5'W x .12'D x 7.48-gal=22 gallons Total spill: 105 + 22 = 127 gallons 	Start time was based on eyewitness account. The end time was based on responding sewer crew restoring the flow in the mainline.	Fats, Oil and Grease (FOG)		Gravity Mainline		Other (specify below)	CIPP	9	Sewage overflowed from 4  plumbing pipe inside the basement of the building/structure where it was contained.	N	Contained All or Portion of Spill; Other (specify below); Restored Flow	Contractors working in the basement cleaned and returned spill to sewer system.	Sewage overflowed from 4  plumbing pipe inside the basement of the building/structure where it was contained.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Mainline has been added to high frequency hydro maintenance program W.O # 1558167. Mainline was CCTV, inspection found grease and grit to have been the potential cause of the SSO.		09/19/2024 10:00	 Mainline was CCTV, inspection found grease and grit to have been the potential cause of the SSO.		N/A	09/19/2024 10:00														N/A	Mainline has been added to high frequency hydro maintenance program W.O # 1558167.	Mainline has been added to high frequency hydro maintenance program W.O # 1558167.	N/A	Mainline was CCTV, inspection found mainline to be in good condition with grease and grit to have been the potential cause of the SSO.	N/A	Mainline has been added to high frequency hydro maintenance program W.O # 1558167. Mainline was CCTV, inspection found grease and grit to have been the potential cause of the SSO.	Mainline has been added to high frequency hydro maintenance program W.O # 1558167.	N/A	
8	8SSO10591	Active	Orange City CS	Orange City	896593	1.2	Certified	Mike Carney	Environmental Program Manager		30-SEP-24	30-SEP-24	Monthly Category 3 Spill	Main St. and Providence Ave	09/20/2024 08:02	09/20/2024 08:35	09/20/2024 08:00				sewer spill exiting the manhole via pick and vent holes	33.78138	-117.86732	Manhole			200	see photos.	Y	Below ground 30  storm drain.  	200				200	Drainage Conveyance System		Spill reached catch basin that connects downstream to the Santa Ana River; however, all spill and wash water was fully removed from downstream conveyance on La Veta west of Main St.	Y	33.78045	-117.88473							09/20/2024 08:37	Eyeball estimate based on length, width and height of spill in gutter and staining at manhole.	Highly visible line in an area with 24 hour activity.  Start time was based on call-in, end time was based on termination of spill from manhole and clearance of line.	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		99	roadway, gutter, inlet and pipe were impacted.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow		The above ground surfaces were vacuumed and sanitized.  The storm drain pipes were flushed to a downstream access point with all wash water recovered.  	Adjusted Schedule/Method of Preventive Maintenance; Plan Rehabilitation or Replacement of Sewer		Hospital management is aware and will discuss proper disposal procedures with staff.  The City mainline lateral has been scheduled for repair this fiscal year to increase capacity in the line.		09/20/2024 09:30	n/a		n/a	09/20/2024 12:13														Educational materials will be distributed to hospital staff.	The City mainline lateral has been scheduled for repair this fiscal year to increase capacity in the line.	Maintenance will occur ahead of the City mainline repair.	The City mainline has been scheduled for repair this fiscal year to increase capacity in the line.	n/a	The City mainline lateral has been scheduled for repair this fiscal year to increase capacity in the line.	n/a	n/a	n/a	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	896596	1.3	Certified	Kent Vian	Asst. Deputy Director		21-OCT-24	21-OCT-24	Monthly Category 3 Spill	NOT-40201154731-REVILLO WAY.	09/18/2024 13:29	09/18/2024 14:37	09/18/2024 13:28				THE SPILL ORIGINATED FROM LATERAL EQ#10859010  TRAVEL DOWN SOUTHWEST INTO THE STORM DRAIN. GPS COORDINATES ARE 32.75959-117.05822.	32.75959	-117.05822	Gravity Mainline; Lateral Clean Out (Private)	N/A	NO	70	THE SPILL BOUNDARY STARTED AT CLEAN-OUT, TRAVELED DOWN THE SIDEWALK INTO THE STREET, AND ENTERED THE STORM DRAIN.	Y	THE STORM DRAIN SYSTEM WITH THE SPILL TRAVELS IS AN 8  CONCRETE PIPE.	55				55	Drainage Conveyance System; Street/Curb and Gutter (2 3)	N/A	THE SPILL TRAVELED DOWN THE SIDEWALK, IMPACTED THE STREET CURB AND GUTTER, AND ENTERED THE STORM DRAIN. GPS COORDINATES ARE 32.75959-117.05822.		32.75959	-117.05822							09/18/2024 14:38	THE ESTIMATION IS CALCULATED BY VISUAL METHOD.	THE SPILL START TIME IS WHEN THE DISPATCH RECEIVES THE CALL FROM CONSUMER REPORTING THE SPILL.	Debris from Lateral; Other (specify below); Vandalism (specify below)	BROKEN 4  LINER BLOCK FLOW	Gravity Mainline; Lower Lateral	N/A	Vitrified Clay	N/A	85	THE SPILL IMPACT WAS TO THE SIDEWALK, STREET, CURB AND STORM DRAIN.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	N/A	CREWS RESPONDED, INVESTIGATED, CONTAINED, RELIEVED, TRACKED DOWN THE FINAL DESTINATION, RETURNED SEWER INTO THE SYSTEM AND WASHDOWN AREA.	Inspected Sewer Using CCTV to Determine Cause	N/A	MANAGEMENT DETERMINED THAT THE SPILL WAS CAUSED BY A LATERAL LINER. THIS WAS DONE BY A PRIVATE PLUMBER FOR A PRIVATE PROPERTY OWNER. 		09/18/2024 16:30	THE CAUSE OF THE SPILL WAS BROKEN PIECES OF A   4  LINED LATERAL LEFT IN THE MAIN BY A PRIVATE PLUMBING CONTRACTOR. 		NONE	09/20/2024 15:24														NOT AT THIS TIME	NONE CAUSED BY A PRIVATE PLUMBER FOR A PRIVATE PROPERTY OWNER LATERAL. 	NOT NEEDED AT THIS TIME. 	NONE	NOT AT THIS TIME.	NONE	PLEASE SEE ATTACHMENT 	NONE AT THIS TIME 	NONE	
5F	5SSO11202	Active	City of Fresno CS	County of Fresno	896597	1.1	Certified	Arturo Alvarez	Wastewater Manager, Certified		29-SEP-24	29-SEP-24	Monthly Category 3 Spill	3314 E. Swift Ave.	08/27/2024 13:26	08/27/2024 13:48	08/27/2024 09:00				Spill originated from two private service lateral cleanouts: 3304 E. Swift Ave. and 3305 E. Swift Ave. Small amount of what appeared to be toilet paper debris next to MH 1858-28.	36.79586	-119.77002	Lateral Clean Out (Private); Manhole	n/a	n/a	231	The spill area included sidewalk, driveway, street/curb & gutter, valley gutter, and dirt around the affected private lateral cleanout for 3305 E. Swift Ave.	N	n/a	0				231	Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface	n/a	The spill area included sidewalk, driveway, street/curb & gutter, valley gutter, and dirt around the affected private lateral cleanout for 3305 E. Swift Ave.	Y	36.79586	-119.77002	36.79574	-119.77	36.79583	-119.77135			08/27/2024 15:06	The spill volume estimation was determined by calculating the estimated volume of the total spill area.	The estimated spill start time was determined based on the Reporting Party's statement. The spill end time is the time the mainline blockage was broken.	Debris-General; Debris-Rags; Fats, Oil and Grease (FOG)	n/a	Gravity Mainline	n/a	Vitrified Clay	n/a	68	Two private service laterals (3304 & 3305 E. Swift Ave.) were found to be affected by the mainline blockage. The spill area was cleaned and sanitized. There is no known lasting impact due to this spill event.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	The affected spill area was cleaned and sanitized; the affected dirt in the parking strip was removed and replaced with new dirt. Upon arrival, the Specialist created a dirt barrier in the gutter to prevent the spill from traveling farther down the curb. 	The affected spill area was cleaned and sanitized; the affected dirt in the parking strip was removed and replaced with new dirt. Upon arrival, the Specialist created dirt barriers in the gutter on the north side of E. Swift Ave. to contain the spill; dirt barriers formed on the south side of 4305 N. Second St. and to the east of 3305 E. Swift Ave.	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV	n/a	08-27-24: Inspection of affected mainline 1858-28-1858-27 did not reveal significant root intrusion at the approximate location of the blockage.   09-25-24: Review of comparable mainlines in the immediate area also treated for roots in an effort to determine if there are modifications needed to the root control schedule.   Mainline inspection of 1858-24-1858-25 (one block north of E. Swift Ave. on E. Richert Ave.) did not find roots. Mainline was previously cut for roots 10-19-23 and foamed for roots 04-26-24.  Mainline inspection of 1858-31-1858-30 (one block south of E. Swift Ave. on E. Austin Way) found roots in multiple places; the mainline was chain-flailed to remove the roots. Mainline was previously cut for roots 10-23-23 and foamed for roots 04-29-24.		08/27/2024 17:40	CSM received customer service request FresGO #24-01480818 on 08-27-24 at 13:26. CSM Technician Alexander Garcia (AG) arrived on site at 13:48 to find 1858-29 holding and private lateral cleanouts for 3304 & 3305 E. Swift Ave. showing signs of overflow. AG alerted CSM Specialist Cuauhtemoc Torrez (CT) & requested CT bring a Combo. AG began documentation & set up camera at 1858-27; complete blockage of what appeared to be grease and rags found at approx. 280' upstream of 1858-27. CT arrived on site at 14:05; the private lateral cleanouts were no longer actively overflowing. The stoppage was broken at 15:06. Once the surcharge subsided, the mainline was serviced; CT reported grease being brought back. CT then serviced upstream mainline 1858-29-1859-28. The affected dirt around 3305 E. Swift Ave.'s private lateral cleanout was removed. Affected spill area was sanitized with chlorine and vacuumed with Combo.		n/a	08/27/2024 17:40														n/a	09-25-24: Inspections of the comparable mainlines did not find significant root intrusion that would warrant changing the root control schedule at this time.	n/a	n/a	Affected mainline 1858-28-1858-27 inspected on 08-28-2024.	n/a	09-25-24: Inspections of the comparable mainlines did not find significant root intrusion that would warrant changing the root control schedule at this time.	n/a	n/a	
5F	5SSO11202	Historical	City of Fresno CS	County of Fresno	896597	1.1	Certified	Arturo Alvarez	Wastewater Manager, Certified		29-SEP-24	29-SEP-24	Monthly Category 3 Spill	3314 E. Swift Ave.	08/27/2024 13:26	08/27/2024 13:48	08/27/2024 09:00				Spill originated from two private service lateral cleanouts: 3304 E. Swift Ave. and 3305 E. Swift Ave. Small amount of what appeared to be toilet paper debris next to MH 1858-28.	36.79586	-119.77002	Lateral Clean Out (Private); Manhole	n/a	n/a	231	The spill area included sidewalk, driveway, street/curb & gutter, valley gutter, and dirt around the affected private lateral cleanout for 3305 E. Swift Ave.	N	n/a	0				231	Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface	n/a	The spill area included sidewalk, driveway, street/curb & gutter, valley gutter, and dirt around the affected private lateral cleanout for 3305 E. Swift Ave.	Y	36.79586	-119.77002	36.79574	-119.77	36.79583	-119.77135			08/27/2024 15:06	The spill volume estimation was determined by calculating the estimated volume of the total spill area.	The estimated spill start time was determined based on the Reporting Party's statement. The spill end time is the time the mainline blockage was broken.	Debris-General; Debris-Rags; Fats, Oil and Grease (FOG)	n/a	Gravity Mainline	n/a	Vitrified Clay	n/a	68	Two private service laterals (3304 & 3305 E. Swift Ave.) were found to be affected by the mainline blockage. The spill area was cleaned and sanitized. There is no known lasting impact due to this spill event.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	The affected spill area was cleaned and sanitized; the affected dirt in the parking strip was removed and replaced with new dirt. Upon arrival, the Specialist created a dirt barrier in the gutter to prevent the spill from traveling farther down the curb. 	The affected spill area was cleaned and sanitized; the affected dirt in the parking strip was removed and replaced with new dirt. Upon arrival, the Specialist created dirt barriers in the gutter on the north side of E. Swift Ave. to contain the spill; dirt barriers formed on the south side of 4305 N. Second St. and to the east of 3305 E. Swift Ave.	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV	n/a	08-27-24: Inspection of affected mainline 1858-28-1858-27 did not reveal significant root intrusion at the approximate location of the blockage.   09-25-24: Review of comparable mainlines in the immediate area also treated for roots in an effort to determine if there are modifications needed to the root control schedule.   Mainline inspection of 1858-24-1858-25 (one block north of E. Swift Ave. on E. Richert Ave.) did not find roots. Mainline was previously cut for roots 10-19-23 and foamed for roots 04-26-24.  Mainline inspection of 1858-31-1858-30 (one block south of E. Swift Ave. on E. Austin Way) found roots in multiple places; the mainline was chain-flailed to remove the roots. Mainline was previously cut for roots 10-23-23 and foamed for roots 04-29-24.		08/27/2024 17:40	CSM received customer service request FresGO #24-01480818 on 08-27-24 at 13:26. CSM Technician Alexander Garcia (AG) arrived on site at 13:48 to find 1858-29 holding and private lateral cleanouts for 3304 & 3305 E. Swift Ave. showing signs of overflow. AG alerted CSM Specialist Cuauhtemoc Torrez (CT) & requested CT bring a Combo. AG began documentation & set up camera at 1858-27; complete blockage of what appeared to be grease and rags found at approx. 280' upstream of 1858-27. CT arrived on site at 14:05; the private lateral cleanouts were no longer actively overflowing. The stoppage was broken at 15:06. Once the surcharge subsided, the mainline was serviced; CT reported grease being brought back. CT then serviced upstream mainline 1858-29-1859-28. The affected dirt around 3305 E. Swift Ave.'s private lateral cleanout was removed. Affected spill area was sanitized with chlorine and vacuumed with Combo.		n/a	08/27/2024 17:40														n/a	09-25-24: Inspections of the comparable mainlines did not find significant root intrusion that would warrant changing the root control schedule at this time.	n/a	n/a	Affected mainline 1858-28-1858-27 inspected on 08-28-2024.	n/a	09-25-24: Inspections of the comparable mainlines did not find significant root intrusion that would warrant changing the root control schedule at this time.	n/a	n/a	
3	3SSO10332	Active	City of Morgan Hill CS	City of Morgan Hill	896606	1.1	Certified	Chris Ghione	Public Services Director		23-SEP-24	23-SEP-24	Monthly Category 3 Spill	17151 Parkview Dr.	08/30/2024 10:20	08/30/2024 10:40	09/23/2024 10:10				Spill originated in a Force main from F lift Station, only one surface point next to raodway 	37.447883	-121.597978	Force Main			264	Spill followed edge of road and was mostly absorbed int dirt and tree chippings, we raked and washed up as much as possible, some went into field and was also absorbed, it was 98 F that day and everything was dried out fairly quickly 	N						0	Unpaved Surface		Spill traveled downhill and some went into hillside 144' east of spill point										08/30/2024 10:22	We used volume estimation form and used SCADA to determine what time pump ran and stopped, but do not have exact time of spill start and end time as it was moving through the ground, it only spilled once before we shut off the station.  	SCADA  was used to estimate start and end time.	Pipe Structural Problem/Failure - Controls		Force Main		Polyvinyl Chloride (PVC)		30	The spill was absorbed into the ground and was drying out rapidly because of the heat that day, we raked and used combo truck to remove as much as was possible and washed down area where public used road to walk on	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow		we turned off station, located are where spill was coming from. excavated the pipe, found pipe was damaged during installation by backhoe. Morgan Hill did not install that force main, it was done by Santa Clara county before the city annexed it. 	Repaired Facilities or Replaced Defect		We cut out damaged section and replaced it. 		08/30/2024 18:38	Spill was caused by a damaged pipe. pipe was damaged during installation 30 + years ago by another agency. 		None	08/30/2024 11:00														N/A 	None 	N/A	None 	Yes 	None 	N/A	None 	None	
3	3SSO11524	Active	Monterey City CS	Monterey City	896608	1.5	Certified	Andrew Easterling	City Engineer	23-SEP-24	08-OCT-24	08-OCT-24	Category 1 Spill	535 Foam St.	09/22/2024 18:36	09/22/2024 18:39	09/22/2024 18:00	09/22/2024 19:10	24-5354	23-SEP-24	City main backed up on Foam between McClelland and Hoffman Streets.  Wastewater backed up through public cleanout on Foam Street and private cleanout at 535 Foam Street.	36.61316	-121.90015	Lateral Clean Out (Private); Lateral Clean Out (Public)		Spill appearance at public cleanout in street, and private cleanout at 535 Foam	500	Wastewater flowed into curb and gutter on Foam Street down Hoffman and into a catchbasin at Hoffman and Wave Street.	Y	Spill entered a catchbasin at Hoffman and Wave Street which discharges to Pacific Ocean at Steinbeck Plaza	450	50	It was estimated that 500 gallons total spilled and 50 gallons made it to the storm drain which has it's outfall at Steinbeck Plaza at the end of Prescott Ave.  	50	0	Drainage Conveyance System that discharges to surface water		Wastewater entered catchbasin at Wave and Hoffman	Y	36.61431	-121.90016							09/22/2024 17:30	Intermittent spill observed at 5gpm for approximately 90 minutes	Visual observation estimated at 5gpm by Fire Department	Debris-General		Gravity Mainline		Vitrified Clay		100	Approximately 500 gallons spilled, 450 gallons captured.  Surface area was flushed with clean water and vacuumed using vactor truck.  Estimated 50 gallons discharged to storm drain.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Fire Department responded to initial spill and notified Cal OES, and MCHD.  Public Works responded with vactor truck to hydrojet the line and restored flow.  Surface area was flushed with water and collected using vactor.	Post Spill CCTV		CCTV inspection sewer main, used chain cutter to remove roots from line, hydrojet line to remove grease.  Scheduled FOG inspection for upstream restaurant.	CCTV inspected line on 9/25/24.  Used chain cutter to remove roots on 10/1/24.  Requested FOG inspection by M1W on 10/1/24. 	09/25/2024 13:05	Post spill CCTV inspection showed presence of tree roots in City main which may have been a contributing factor.  Streets created a work order to mechanically remove roots using a chain flail.	N			Pacific Ocean	Ocean		Pacific Ocean	None.  Ammonia test strips were used the following day and did not detect presence of ammonia.  	Other (specify below)	No public access impact	N/A	0	N	Y	Outfall A04-O3 located at Steinbeck Plaza at the end of Prescott St.	Ammonia field test strips used at outfall the following day did not detect the presence of ammonia										
2	2SSO10179	Active	San Jose City CS	San Jose City	896609	1.2	Certified	Ben Nguyen	Senior Engineer	23-SEP-24	02-OCT-24	02-OCT-24	Category 1 Spill	Wooded Lake Drive and Leyland Park Drive San Jose CA 95120	09/18/2024 07:29	09/18/2024 08:04	09/18/2024 06:15	09/18/2024 09:10	24-5267		The location of the spill appearance point was a manhole in the intersection of Wooded lake drive and Leyland Park drive in San Jose CA.	37.207510131958	-121.87162031812	Manhole			1590	The spill discharged from the manhole and traveled along the street curb/gutter. From the curb gutter, the sewage traveled along the street and reached a nearby storm inlet. This storm inlet is connected to the City of San Jose's municipal separate storm drain system.  The sewage traveled within the storm system to a storm outfall discharging to the Golf Creek. 	Y	The spill reached nearby storm drain inlet along Leyland Park Drive.  This storm drain inlet (inlet #15857 on CJS' GIS) is connected to the City of San Jose's municipal separate storm sewer drainage system. The sewage traveled within the storm system to a storm outfall discharge point at Golf Creek. 	0	1520	The sewage reached Golf Creek while discharging from storm outfall.  The location o the storm outfall along the Golf Creek is approximately at 37.20760185940698, -121.87150563593023. 	1520	70	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Surface Water		The spill entered an inlet on Wooded lake at Leland Park Drive and traveled to a outfall at Golf Creek ( coordinates 37.2076, -121.8715) 	Y	37.20751013195	-121.8716203	37.207601859407	-121.87150563593					09/18/2024 08:54	Spill volume was estimated based on flow rate duration method using the recording of the over-flowing MH. Start time was assumed to be one hour prior to RP's notice of the spill due to water mark on the street. Duration was estimated at 159 minutes.  Flow rate was estimated as 10 gpm per video clip taken by the first responder. Spill recovered was calculated using measurements taken by crew during spill event. 	Spill start time was based on responding party obeservation and spill end time was based on when crew cleared the plug in the mainline. 	Debris-General	Material appears to be construction rocks. 	Gravity Mainline		Vitrified Clay		50	Water reached the street and curb and gutter, and was cleaned up.  Water reached a storm outfall at Golf Creek. Staff found no impact to the water way or wildlife in the area. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Crew posted  Raw Sewage  warning signs near the spill location for public safety. 	Water already reached the drainage inlet when crew arrived.  Immediately, crew put down containment to stop additional water entering the inlet. After crew cleared the plug, crew removed debris from sanitary system, restored the flow, tested storm water inlet/manhole and outfall. Crew cleaned up street with two-trucks method, notified appropriate agencies, and document the event. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV	Inspect area for ongoing or recently completed construction 	CCTV inspection was performed immediately after the spill. Staff reviewed and discussed the result of the CCTV inspection and determined that no repair or rehab is needed.  Impacted segment will be re-inspected w/ CCTV three months later and maintenance cycle might be adjusted pending the result of the CCTV inspection.  	Re-inspection with CCTV the impacted segment in three months. 	09/25/2024 15:30	Staff reviewed the pictures, video, and the information from the first responder.  Staff reviewed the debris that was removed from the plugged segment and determined that it appears to be rocks or construction construction material.  And CCTV result showed minor evident of grease, but ruled out as the cause of the plug.  It was concluded that the spill was caused by the debris that was pulled out of the MH. 	N			Golf Creek	Stream/Creek		The Golf Creek is a small creek which meets Los Alamitos Creek which eventually meets the Guadalupe River.  The Guadalupe River mainstem is an urban, northward flowing 14 miles river in California whose much longer headwater creeks originate in the Santa Cruz Mountains. From here it flows north through San Jose, where it receives Los Gatos Creek, a major tributary. The Guadalupe River serves as the eastern boundary of the City of Santa Clara and the western boundary of Alviso, and after coursing through San Jos�, it empties into south San Francisco Bay at the Alviso Slough. 	No impact	Other (specify below)	The part of the golf course is not accessed by public.  Raw sewage signs were posted.	Valley Water	0	N	N												
9	9SSO10650	Active	City of Encinitas CS	Encinitas City 	896623	1.2	Certified	SHAWN ATHERTON	UTILITY SUPERVISOR		26-SEP-24	26-SEP-24	Monthly Category 3 Spill	1680 Coast Hwy. 101	08/15/2024 10:47	08/15/2024 10:57	08/15/2024 10:45				Moonlight Beach sewer pump station Force Main MH ID# 3860, Location is approximately 150 feet East of the property at 1680 Coast Hwy. 101. MH is located on the East edge of Hwy. 101, west of the Railroad tracks.	33.07697	-117.30728	Force Main; Manhole		None	500	A ductile Iron   T   fitting connected to the 14  PVC force main corroded/failed. The result was when the Moonlight Beach pumps station kicked on, approximately 50 GPM spilled out from the Manhole. The spill was fully contained in an area approximately 50 feet long X 25 feet wide. The area was located between the East edge of Hwy. 101 and the west side of the Railroad tracks.  	N	There are no curbs, and no storm-drain pipes located in this area. The spill was contained in an area between the West side of the Railroad tracks and the eastern edge of Coast Hwy. 101. The spill was contained in an area approximately 50 feet long X 25 feet wide. City crews arrived on-sight within 15 minutes of the spill start time and only 2-3 minutes after the spill stopped. The containment area allowed us to be able to fully recover all of the sewer spill, then return it to the sewer system. i 	0				500	Unpaved Surface		The final destination of the spill was located within the Railroad right of way FOUL ZONE, No people are allowed to enter this area. The size of the spill destination area is about 50 feet long X 25 feet wide.  The location of the spill area is East side of Coast Hwy. 101 and the west side of the Railroad tracks. 	Y	33.07768	-117.30643							08/15/2024 10:55	To obtain the volume of the spill, we compared the amount spilling from the MH (visual) to the SSCSC Manhole Overflow Gauge. We determined the spill volume to be approximately 50 GPM. 50 GPM X 10 minutes = 500 Gals. To determine the amount of the spill that was recovered, using a combination sewer cleaning truck, we vacuumed up all of the sewer spill water from the location. When we left the area there was no signs of a spill.   	To obtain the time frame of the spill, we interviewed the construction worker that reported the spill, he was still on-site when we arrived. The construction worker told us the spill started at 10:45am and stopped at 10:55am, we arrived on-site at 10:57am. we determined the time frame of the spill was from 10:45am to 10:55am, 10 minutes total. 	Pipe Structural Problem/Failure - Installation	A Ductile Iron T fitting connected to the force main corroded/failed over a 12-year period.	Force Main; Manhole		Ductile Iron; Polyvinyl Chloride (PVC)	The force main pipe is PVC, the T fitting was ductile iron 	12	No sewer spill is acceptable, but given the location of this spill, I think we ended up with a best-case scenario. The sewer spill was located within the North County Railroad right of way FOUL ZONE. No people are allowed to enter into this area.  Also, the spill final destination was located between the west side of the Railroad tracks and the eastern edge of Coast Hwy. 101. The spill had nowhere to go. We were able to vacuum up all of the spill, there was no signs of a spill when we left the area.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		On August 15, 2024, at approximately 10:47am, City of Encinitas staff was notified of a sewer spill occurring at 1680 N Coast Hwy. 101. Immediately, crews working in the field were notified and dispatched to the location. WWC crews were already working in the area and arrived within 10 minutes. When City crews arrived, the pump station had shut off and the spill had already stopped. The sewer spill water was contained between the West side of the Railroad tracks and the Eastern edge of Coast Hwy. 101. Basically, the spill had nowhere to go, there were no curbs and no storm drain-pipes. This allowed us to be able to vacuum up and clean all of the sewer spill from the area. 	Repaired Facilities or Replaced Defect	The City of Encinitas hired Burtech Pipeline to make repairs immediately.  The ductile iron inspection T was removed and replaced with a Stainless-steel repair coupling.	Burtech Pipeline contractor was hired by the City of Encinitas to make the repair ASAP. Burtech Pipeline staff was on-sight at 1:00pm on 8/15/2024, final repairs were completed at 3:00am on August 16, 2024. There is no chance of failure from the metal fitting at this same location, the corroded ductile iron T fitting was removed from the PVC Force Main and replaced with a Stainless-steel full circle clamp   		08/16/2024 04:00	The spill was caused by a ductile iron inspection fitting that has corroded over a twelve (12) year period. There are 9 inspection fittings attached to this force main, the remaining 8 fittings are PVC and not made of metal. This was the only metal fitting, and it was removed from the PVC force main pipe, then replaced with a stainless-steel full circle repair coupling.  In the future, routine inspections of the remaining 8 PVC inspection fittings will occur every two (2) years. 		ongoing investigation will include inspections to the Force main inspection fittings every two (2) years.	08/16/2024 04:00														NA	There is no chance of failure from the metal T fitting at this location, because it has been removed. the corroded ductile iron T fitting was removed from the PVC Force Main and replaced with a Stainless-steel full circle clamp. Also, the remaining 8 inspection T fittings were confirmed to be PVC and not metal. 	NA	Already completed by Burtech Pipeline contractor on the same day as the spill occurred. City of Encinitas hired Burtech to make the repairs ASAP.	Approximately 1 week after the spill occurred, City staff inspected the remaining 8 T inspection fittings.  all of the remaining fittings are PVC and not metal. There should be no chance of corrosion to the fittings in the future.	NA	Repairs were already completed on the day of the spill.  See the attached invoice from Burtech Pipeline, this was the amount Burtech charged the City for making the repairs 	NO Sewer Spill is Acceptable!  For this specific spill, we feel the spill response was the best-case scenario.  The spill occurred because of a corroded ductile iron inspection fitting. The fitting was removed and replaced with a full circle stainless-steel repair coupling. We received the call at 10:47 am, by 10:57 our crew was on-site. The spill was fully contained in an area measuring approximately 50 feet long X 25 feet wide. The final destination of the spill was located in the Railroad tracks FOUL Zone; NO people are allowed to enter. The spill was contained in an area between the East edge of Hwy. 101 and the west side of the Railroad tracks. Basically, the spill had to where to go. Because of this, we were able to vacuum up all of the spill and return it to our sewer system. When we left the site, there were no signs of a sewer spill. 	ongoing investigation will include inspections to the Force main inspection fittings every two (2) years.	
3	3SSO11191	Active	Correctional Training Facility CS	California Department of Corrections and Rehabilitation	896625	1.3	Ready to Certify			24-SEP-24			Category 2 Spill	31625 Highway 101, Correctional Training Facility	09/23/2024 07:15	09/23/2024 07:00	09/23/2024 06:50				Manhole in open field before lift station.	36.46051	-121.38017	Manhole			4444	Wastewater from manhole drained to low spot about 60 feet from manhole creating a 20'x10'x.5' puddle.	N						0	Unpaved Surface		Spill collected in unpaved surface about 60 feet from manhole	Y	36.46057	-121.3802	36.46034	-121.38024					09/23/2024 07:45	Eyeball method	Eyeball Method (80 GPM x 55 Min)	Debris-General; Root Intrusion		Manhole		Vitrified Clay		50	None, spill was contained to unpaved surface	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow		Sewer Blockage was quickly cleared, spill was contained to low spot on unpaved surface away from roads or pedestrian traffic. Area was treated with chlorinated water for bacteria control.	Adjusted Schedule/Method of Preventive Maintenance		Sewer mains are hydro jetted once a year as preventive maintenance. Will look into purchasing a sewer camera and updated hydro Jetter to address root intrusion and be able to inspect sewer main lines.	purchase of hydro Jetter and sewer camera. Schedule is not set yet	09/24/2024 09:51	Segment of sewer has root intrusion. Roots with ongoing debris created a block in sewer system. 	N												N													
5S	5SSO10941	Active	El Dorado Hills CS	El Dorado Irrigation District	896634	1.4	Certified	John Chavers	Collection System Supervisor	25-SEP-24	08-OCT-24	08-OCT-24	Category 1 Spill	Green Valley Road/350 Stage Stop Court, El Dorado Hills, CA	09/22/2024 09:33	09/22/2024 10:03	09/22/2024 07:30	09/22/2024 11:26	24-5355	25-SEP-24	See Attachment	38.70931	-121.08842	Force Main	See Attachment	N/A	18100	See Attachment	Y	See Attachment	8250	0	See Attachment	18100	8250	Drainage Conveyance System that discharges to surface water; Surface Water		See attachment	Y	38.7097	-121.09103							09/23/2024 12:21	See Attachment	See attachment	Pipe Structural Problem/Failure - Installation		Force Main		Polyvinyl Chloride (PVC)		40	See Attachment	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	See Attachment	See Attachment	Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect	See Attachment	See Attachment	See Attachment	09/24/2024 14:00	See Attachment	N			Folsom Lake	Lake; Stream/Creek		See Attachment	See Attachment	Restricted Public Access	See Attachment	See Attachment	12	N	Y	See Attachment	See Attachment										
3	3SSO11609	Active	Pacific Grove City CS	Pacific Grove City	896635	1.5	Certified	Daniel Gho	Director	24-SEP-24	24-SEP-24	24-SEP-24	Category 1 Spill	Sunset Dr . and Arena Ave.  	09/21/2024 10:24	09/21/2024 10:30	09/21/2024 10:24	09/21/2024 17:09	24-5339		The spill originated in the roadway as the force main line failed and was pushing liquid through the road at the intersection of Sunset Dr. and Arena Ave. in Pacific Grove.  	36.62696	-121.93782	Force Main			1000	Roadway and road shoulder, beach and surface waters.  	N				The spill flow followed utility lines trenches underground and appeared on the beach adjacent to the roadway shoulder.   	500	500	Paved Surface; Surface Water; Unpaved Surface		The spill was noticed on the roadway at the intersection of Sunset Dr. and Arena Ave.  also on the shoulder of the intersection and on the beach.  	Y	36.62697	-121.93783							09/21/2024 12:15	Estimated based on volume recovered and flows	Emergency responses and calls.  	Other (specify below)	The force main pipe was cracked.  	Force Main		Ductile Iron		70	No significant impact, but some spill went into the ocean.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		The City immediately started to contain the spill, and vacuum and recover surface waters.  We then contacted construction crews to repair the failed main line.  	Repaired Facilities or Replaced Defect		This was a force main line, so the repair occurred immediately and was completed on September 22, 2024 at 7:30 a.  	Completed September 22, 2024.  	09/22/2024 07:30	The force main line had a 4-foot crack in the bottom of the pipe that failed.  	Y	Engineering to replace the entire force main to prevent future spills	01/01/2025 11:54	Pacific Ocean	Ocean		Pacific Ocean.  	None	Temporary Restricted Use		City of Pacific Grove	1	N	Y	Ocean near spill	E-coli.  									Engineering to replace the entire force main to prevent future spills	
5S	5SSO11001	Active	Modesto CS	Modesto City	896641	1.2	Certified	Robert Englent	Wastewater Collection System Superintendent	24-SEP-24	07-OCT-24	07-OCT-24	Category 2 Spill	2308 McHenry Ave	09/19/2024 10:32	09/19/2024 10:45	09/18/2024 21:00	09/23/2024 14:04	24-5377		The spill originated in the parking lot for 2308, 2312 and 2320 McHenry Ave. See photographs.	37.67599	-120.99378	Lower Lateral (Private); Other (specify below)	Sewer spilled from a grease separator at 2312 McHenry Ave.	1. Sewer spilled out of 4 clean outs at 2308 McHenry Ave. 2. Sewer spilled out of 1 clean out at 2320 McHenry Ave. 3. Sewer spilled out of the grease separator at 2312 McHenry Ave.	1451	All of the spills stayed within the parking lot of the three addresses. All sewer flowed toward the storm drain in the parking lot.  See photographs.	Y	Sewer spilled into a private storm drain in the parking lot and flowed to storm drain SDCB003705 in front of 2320 McHenry Ave. The sewer then entered the positive storm system. See photographs.	1337	0			1451	Drainage Conveyance System that discharges to surface water		From 2320 McHenry Ave. in front of Burger King. Sewer from the clean out spilled out, but did not reach the private storm drain. From 2312 McHenry Ave. sewer spilled out of the grease interceptor in front of Crawfish Noodle Restaurant, but did not reach the private storm drain. From 2308 McHenry Ave. on the North side of Herbology, sewer spilled from 4 clean outs. Sewer from 3 of those 4 clean outs reached a private storm drain to the North. From the private storm drain sewer flowed to Cal-Trans CB003705 and then flowed South downstream approx. 2770 ft. to SDMH023713 in the intersection of McHenry Ave. and Judith Ln. The DS MH was dry so we sandbagged the MH.	Y	37.67617	-120.9937	37.67606	-120.9932	37.67597	-120.99379	37.66885	-120.99402	09/19/2024 11:03	There was a total of 6 puddles of water, and a catch basin that had dirt and was saturated with wastewater. 3 cleanouts spilled into the private catch basin. While the other 3 cleanouts had low gallons overflowed and were contained in the parking lot. The estimated spill rate was 1 gpm for the each of the three cleanouts that spilled into the storm system (Total of 3 gpm) for a total gallons spilled from these cleanouts being 1449. The other 3 cleanouts overflows stayed in the parking lot the estimated gallons for the three other stains were 2 gallons (stains 1, 5, and 6). With a total spill of 1451 gallons from this event.   SEE ATTACHMENT	The owner of Herbology stated that she saw water in the parking lot at 8 pm on 9/18/2024. Janell spoke with the other 2 business to get hours of operations (Burger King and Crawfish and Noodle). The estimated start time was 9/18/24 at 2000 hours and the blockage broke at 1103 on 9/19/23. The latest on of the three-business stayed open was 2300, and the earliest business opened at 6 am.  The total hours used for spill time would be 2000 to 2300 on 9/18/24, and 0600 to 1103. For a total spill time of 483 minutes.   SEE ATTACHMENT	Fats, Oil and Grease (FOG); Other (specify below)	Sags in sewer line segment. 	Gravity Mainline		Vitrified Clay		55	Sewer in the parking lot and in the positive storm line.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Upon arrival a rubber mat and sandbags were placed on the private storm drain in the parking lot. ECS and a cleaning crew were dispatched to the scene. The cleaning crew set up on the appropriate MH and broke the grease stoppage. They then cleaned the upstream lines and proceeded to clean the parking lot by washing and vacuuming the asphalt parking lot.  Two vacuum trucks were used to clean the affected storm lines and remove the sandbags from SDMH023713.	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		The line segment cleaning schedule has been increased from 9 months to 4 month cleaning intervals. FOG inspections for all FSE's (Food Service Establishments) upstream from the stoppage will be carried out starting the week beginning Monday October 7th, 2024.	FOG inspections for all FSE's (Food Service Establishments) upstream from the stoppage will be carried out starting the week beginning Monday October 7th, 2024.	09/19/2024 18:00	CCTV found 2 sags in the line segment. The first sag is 108 ft. to 230 ft. from the USMH. The second sag is from 190 ft. to 210 ft. from the USMH. 20% to 40% water levels.	N												N													
8	8SSO10544	Active	Big Bear City CSD CS	Big Bear City Community Services District	896642	1.1	Certified	Nathan Zamorano	Sewer Department Superintendent		24-SEP-24	24-SEP-24	Monthly Category 3 Spill	MH 1580	08/30/2024 12:26	08/30/2024 12:50	08/30/2024 06:30				MH 1580 Easement Main line behind 453 Ashwood Dr. Big Bear City, CA. 92314	34.25529904	-116.8659184	Manhole	N/A	N/A	832	Spill was exiting the sewer manhole lid #1580 thru 3 of 4 half inch bolt holes from heights ranging from 1/8  to 1/2 .  Spill extended 115' north down the sewer easement.	N	N/A					0	Unpaved Surface		Spill ended 115' north of MH 1580 behind 443 Ashwood Dr.	Y	34.2556	-116.86588							08/30/2024 13:29	Used pick and vent hole estimation chart.  Sewage was exiting from three bolt holes (not all four) at a height of 1/8  to 1/4 .  The GPM of those pick holes were converted to Gallons per Hour. 	 The area of the spill was measured and it coincided with the calculation method Pick and Vent Hole Estimation Chart.	Root Intrusion		Gravity Mainline		Concrete		48	minimal impact due to limited activity and access to the remote area behind the houses.	N	Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow	Used Hydro Jetter to break thru roots in mainline.	Chlorinated the spill area and posted sewer spill signs.	Other (specify below); Post Spill CCTV	Inspected with CCTV, determined the cause was due to roots.	Root cut line with Hydro Jetter on September 3rd and the main line was added to a root foaming schedule.		08/30/2024 16:30	CCTV discovered roots to be the cause of the spill		Continued monitoring with CCTV	09/03/2024 13:40														N/A	Increase general inspection and cleaning of the line and will reapply root foam annually or as needed.	Increase general inspection and cleaning of the line and will reapply root foam annually or as needed.	No	Point repair will be considered after root foaming.	N/A	Will be added to our root foaming schedule and a point repair will subsequently be performed.	None needed.  All crews were at lunch when the call came in and they still had a 20 minute response time.	Continued monitoring with CCTV	
3	3SSO11609	Active	Pacific Grove City CS	Pacific Grove City	896648	1.1	Certified	Daniel Gho	Director		24-SEP-24	24-SEP-24	Monthly Category 3 Spill	719 19th Street	09/21/2024 16:34	09/21/2024 16:46	09/21/2024 16:34				Gravity Main line	36.61593	-121.92218	Inside Building or Structure			50	Inside bottom floor of house	N						35	Building or Structure		The City had a blockage in our main line which resulted in the sewer coming into the house as the property did not have a check valve.  										09/21/2024 17:00	visual	received calls and operator response	Damage by Others Not Related to Collection System Construction/Maintenance; Debris-General; Debris-Rags; Debris-wipes/Non-disposables; Root Intrusion		Gravity Mainline		Vitrified Clay		60	Damage to interior of the house	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		Unblocked the main line and directed the property owner to reach out to a clean-up company	Adjusted Schedule/Method of Preventive Maintenance		The City will add the line to our root intrusion program		09/21/2024 17:00	The City investigated and determined a backflow prevention device would have prevented the spill from going into the house.  		N/A	09/23/2024 11:00														None	Root treatment.  	Add to root treatment list	N/A	N/A	N/A	N/A	N/A	N/A	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	896651	1.2	Certified	John J. Hough	San Dist. Superintendent	24-SEP-24	04-OCT-24	04-OCT-24	Category 1 Spill	349156	09/21/2024 10:24	09/21/2024 10:54	09/20/2024 08:00				See attached Spill Map with photos.	38.65	-121.3394	Lateral Clean Out (Public)			233	See attached Spill Map with photos.	Y	See attached Spill Map with photos.	0	0	See attached Spill Map with photos.	226	230	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See attached Spill Map with photos.	Y	38.65	-121.3394	38.64985	-121.33924	38.64914	-121.34112			09/21/2024 10:54	See attached Spill Volume Estimation.	See attached Spill Volume Estimation.	Root Intrusion		Lower Lateral		Vitrified Clay		65	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	*Notified Sacramento County Water Resources Drainage O&M.	See attached Description of Spill Event.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected the lower lateral with CCTV on September 21, 2024. Based on the findings, SacSewer adjusted the preventative maintenance schedule from a 48-month frequency to an 18-month frequency.	SacSewer modified the preventative maintenance schedule on 9/23/24.	09/21/2024 22:30	See attached Description of Spill Event.	N			Arcade Creek	Stream/Creek		Arcade Creek was dry. Spill contained to daylighted corrugated metal pipe within Arcade Creek.	No observed impacts to aquatic life.	Other (specify below)	No public access impacts.	N/A	0	N	N												
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	896654	1.1	Certified	David Leamer	Assistant Superintendent		30-SEP-24	30-SEP-24	Monthly Category 3 Spill	348100	08/27/2024 12:09	08/27/2024 12:39	08/27/2024 11:45				See Attached Spill map with Photos.	38.70283	-121.38591	Inside Building or Structure; Lateral Clean Out (Private)		Inside Building and 3 Private Clean Outs	234	See Attached Spill Map with Photos	N	See Attached Spill map with Photos.	0				204	Building or Structure; Paved Surface; Unpaved Surface		See attached Spill Map with Photos.	Y	38.70283	-121.38591							08/27/2024 12:39	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Root Intrusion		Gravity Mainline		Vitrified Clay		34	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		SacSewer crews cleared stoppage in mainline asset and CCTV inspected line. Recovered spill to land and inside structure.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		SacSewer inspected mainline with CCTV on 9/5/24. Based on findings, SacSewer added this line to a 12 month PM program.		08/30/2024 12:39	SacSewer arrived to fine blockage in mainline asset. Crew cleared stoppage, performed a follow up and CCTV inspected line. Insurance adjuster called to have cleaning contractor clean all affected areas of spill on land and inside structure. Stoppage was root intrusion.		None	08/27/2024 12:39														N/A	SacSewer added this line to a preventive cleaning frequency of 12 months.	SacSewer added this line to a preventive cleaning frequency of 12 months.	N/A	SacSewer inspected mainline with CCTV on 9/5/24.	N/A	N/A	SacSewer added this line to a preventive maintenance schedule on 9/5/24.	None	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	896655	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		02-OCT-24	02-OCT-24	Monthly Category 3 Spill	1111 North Stradella Road	08/30/2024 09:51	08/30/2024 10:20	08/30/2024 09:51				The initial crew arrived at 10:20 AM. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed.	34.0919	-118.454461	Manhole		None	132	Photo Attached	N	None	0				132	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	Y	34.0919	-118.454461							08/30/2024 11:23	SPILL FLOWRATE AND VOLUME DETERMINATION BASED ON FLOWOUT PICKHOLE OR OPENING DIAMETER OF PICKHOLE OR OPENING 0.75 INCHES HEIGHT OF WATER OUT OF PICKHOLE/OPENING 0.5 INCHES FLOWRATE PER PICKOLE/OPENING (GPM) 1 GPM # OF PICKHOLES/OPENINGS 1 TOTAL FLOWRATE (GPM) 1 GPM DURATION OF SPILL (MINUTES) 92 MINUTES TOTAL FLOW (GALLONS) 132 GALLONS	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.	Root Intrusion		Gravity Mainline		Vitrified Clay		73	It was estimated that approximately 132 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment, and subsequently the entire back up amount was returned to the sewer system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		A CWCD crew was immediately dispatched to the incident location and determined that 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 11:23 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.		08/30/2024 11:23	On Friday, August 30, 2024, at 9:51 AM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 1111 North Stradella Road (TG 591-J6). A CWCD crew was immediately dispatched to the incident location and determined that 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 11:23 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 132 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment, and subsequently the entire back up amount was returned to the sewer system. 		Not At This Time.	08/30/2024 11:23														None at this time	None at this time	In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	None at this time	None at this time	None at this time	In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	On Friday, August 30, 2024, at 9:51 AM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 1111 North Stradella Road (TG 591-J6). A CWCD crew was immediately dispatched to the incident location and determined that 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 11:23 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 132 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment, and subsequently the entire back up amount was returned to the sewer system. 	Not At This Time.	
2	2SSO10159	Active	Napa Sd CS	Napa Sanitation District	896665	1.2	Certified	Seth Rossi	Collection System Manager		25-SEP-24	25-SEP-24	Monthly Category 3 Spill	1611 Ora Dr 	09/14/2024 11:10	09/14/2024 11:35	09/14/2024 10:00				Spill originated out of a Manhole in a customer's back yard.	38.309421	-122.275645	Manhole	N/A	N/A	360	Spill seeped out of Manhole and pooled around the Manhole. It then contained itself to the dirt area in the backyard of 1611 Ora Dr.	N	N/A					5	Unpaved Surface	N/A	Spill seeped out of Manhole and pooled around the Manhole. It then contained itself to the dirt area in the backyard of 1611 Ora Dr. The spill did not extend past dirt area. 	Y	38.309421	-122.275645							09/14/2024 12:45	Spill volume was estimated by interviewing the customer about when they noticed the spill, combined with the crew members visual observations of the active spill. Then using the SSCSC Manhole Overflow Guage the spill duration and rate of spill determined the 360 gallons.	The data relied on were the interviewer's observations and the crew member visually estimating rate of spill using the SSCSC Manhole Overflow Guage.	Root Intrusion		Manhole		Other (specify below)	HDPE SDR 17	22	The impact of the spill was a pooling of water in the customer's backyard around the manhole. 	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow		Spill was active upon crew members arrival, using the Eel and Rods the roots were cleared, and flow restored. Then using a broom, the puddle was swept back into the Manhole. 	Added Sewer to Preventive Maintenance Program; Plan Rehabilitation or Replacement of Sewer; Post Spill CCTV		Post Spill CCTV was conducted. The Manhole has been put on a list for repair and a preventive maintenance schedule.		09/14/2024 15:00	After eel and rods cleared roots and restored flow, a mini cam was lowered into manhole and discovered roots were the cause of the blockage.		Manhole is on a 4month PM schedule to be inspected for roots. 	09/14/2024 15:00														N/A	Manhole has been put on a 4month PM schedule.	Created a PM schedule for the Manhole.	Manhole has been put on a list for repair.	CCTV was conducted the next work day.	N/A	N/A	Eel and Rods were ran to remove roots and restore flow,	Manhole is on a 4month PM schedule to be inspected for roots. 	
4	4SSO10443	Active	Whittier City CS	Whittier City	896672	1.5	Certified	Kyle Cason	Director of Public Works	30-SEP-24	30-SEP-24	30-SEP-24	Category 1 Spill	15914 Arbela Dr, Whittier CA	09/23/2024 19:00	09/23/2024 19:35	09/23/2024 18:55				A sewer spill occurred at MH 4423	33.95275	-117.99009	Manhole			250	The spill occurred at MH 4423 spilling onto the surface street into a storm drain. 	Y	Storm drain	0	250	The discharge point was at MH 4423 into a storm drain	250	0	Drainage Conveyance System; Street/Curb and Gutter (2 3)		Gravity Sewer main line blockage between MH 4423 and 4422 with roots.	Y	33.95275	-117.99009							09/23/2024 19:45	SSCSC/CWEA MH Overflow Gauge (MH 4422 5 gpm x 50 min = 250	SSCSC/CWEA MH Overflow Gauge	Root Intrusion		Gravity Mainline		Vitrified Clay		50	Sewer flowed onto surface street and into storm drain 	N	Other (specify below); Restored Flow	Applies disinfectant to the surface street to the storm drain. 	At the time of arrival,  crews immediately jetted the sewer main line at MH 4422 for several minutes. Once the blockage was released, crews began to disinfect the area. 	Inspected Sewer Using CCTV to Determine Cause		CCTV identified root intrusion. Routine maintenance will continue. 	None	09/23/2024 19:45	Visual observation along with captured roots. CCTV identified root intrusion. 	N			Coyote Creek	Estuary		Dry river bed leading to Ocean. 	None	Other (specify below)	None	None	0	Y	N												
2	2SSO18110	Active	Treasure Island Development Authority CS	Treasure Island Development Authority	896675	1.1	Ready to Certify						Monthly Category 3 Spill	Reeve�s CT and Gate view	09/19/2024 13:43	09/19/2024 14:30	09/19/2024 12:45				NA	37.82889	-122.3763	Lower Lateral (Private); Lower Lateral (Public)		Asset #	270	I came out of clean out asset# L-145388 and flowed into CB# and ended. Storm	N						270	Other (specify below)	Separate Storrm drain	37.82993N, -122.37386W	Y	37.82993	-122.37386							09/19/2024 14:15	Euqball Method	Dalton received a call went to site and noticed overflow, he also noticed at 2:15 when the vector said that the overflow was no longer coming out of the asset L-145388 	Root Intrusion		Gravity Mainline		Vitrified Clay		85	None, only pipe replacement needed	N	Cleaned Up (specify below); Returned All Spill to Sanitary Sewer System		Spill returned to storm drain that runs to PS #22, washed drain everything to storm drains, cleaned storm drain with Vactor Aosled collect to pump station. Pump station operate hydraulically removed solids.	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		Inspected with CCTV, found defect in pipe and repaired defect.  		09/23/2024 08:37	Inspected pipe found broken and roots inside, repair/replaced pipe		None	09/27/2024 12:10														NA	NA	NA	Pipe repair on 09/27/2024	NA	NA	NA	Flushed and cleared blockage, inspected pipe, found defect and repalced pipe.	None	
5S	5SSO11054	Active	South Placer Mud CS	South Placer MUD	896680	1.1	Certified	Eric Nielsen	Superintendent		27-SEP-24	27-SEP-24	Monthly Category 3 Spill	O06-095_Rocklin	08/02/2024 13:14	08/02/2024 13:39	08/02/2024 13:00				See Attached Spill Summary	38.83518	-121.25896	Manhole			425	See Attached Spill Summary	Y	See Attached Spill Summary	406				425	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		See Attached Spill Summary	Y	38.83517	-121.25896							08/02/2024 14:00	See Attached Spill Summary	See Attached Spill Summary	Debris from Construction; Inappropriate Discharge to Collection System		Gravity Mainline		Polyvinyl Chloride (PVC)		3	See Attached Spill Summary	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		See Attached Spill Summary	Other (specify below)	Notice of Violation issued to the Developer of the subdivision	Notice of Violation issued to the Developer of the subdivision		08/02/2024 14:00	N/A		N/A	08/02/2024 14:00														Notice of Violation issued to the Developer of the subdivision	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	
5S	5SSO10901	Active	City of Sacramento Utilities CS	Sacramento City	896682	1.1	Amended	Kevin Guerra	Superintendent		04-OCT-24	04-OCT-24	Monthly Category 3 Spill	2082 Railroad Dr. Sacramento, Ca. 95822	09/10/2024 11:30	09/10/2024 12:30	07/24/2024 00:01				The spill appearance point was located in a field downstream of a sewer sump station.	38.60304	-121.46909	Force Main			177	The spill appearance point was a valve box located in the middle of a field. The spill would seep out when the pump would kick on and receded back into the box when the pumps stopped, leaving a wet area. The spill contained itself.	N						177	Unpaved Surface		The spill would appear and recede back to where it came from it left a circular wet area behind in the soil. The destination and spread was the same as the appearance point.	Y	38.60304	-121.46909							09/11/2024 10:00	 We had seen the spill appear and recede when the sump station turned on and off. We took measurements of the area that the spill would reach before it returned back into the sewer system.  We then excavated in the area nearest the appearance point until we found dry soil. We took these measurements and entered them into a calculator that had been built to estimate a spill trapped in soil.  This calculator has different calculations for different types of soil, we used the calculation for Clay.	We reviewed data from multiple sources on the Sump Station, and found nothing that would tell us when the spill started. We did have a picture of the spill area on July 24,2024 and the spill area was dry and the vegetation was dead. This was the only thing we could use that we could positively say the spill had not started. For the end time we used when the repairs had been made and the pumps were turned back on.	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure		Air Relief Valve (ARV)/ Blow-Off Valve (BOV)		Galvanized Steel		110	The spill had no impact to the environment nor the publics service.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Tested Force main and air Relief valve after repairs were made. Portion of spill contained in the soil was removed and taken to the landfill.	The spill had been absorbed by the soil in the field. We removed the soil and took it to the landfill and replaced with top soil.	Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect		We are adding this and other valves on force mains to a monthly inspection route, These valves will also be maintained and serviced on a regular cycle as well.		09/24/2024 14:00	We found that the ARV valve in the field had Galvanized steel piping that  had rotted and had begun to fail in different areas. We replaced all of the fittings, the piping, and the valve, to correct this spill cause.		N/A	09/11/2024 13:01														N/A	We are developing and writing an SOP for a forced main maintenance program.	N/A	Yes this is on a CIP list and a priority project.	N/A	The sump station and forced main are on a CIP list due to be replaced and updated within this fiscal year.	N/A	N/A	N/A	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	896689	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		07-OCT-24	07-OCT-24	Monthly Category 3 Spill	2678 South Anchor Avenue	09/26/2024 12:39	09/26/2024 13:15	09/26/2024 12:39				The initial crew arrived at 1:15P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. 	34.042241	-118.399496	Manhole		None	104	Photo attached	N		0				104	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	It was estimated that approximately 104 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment, and subsequently the entire amount was returned back to the systems.  	Y	34.042241	-118.399496							09/26/2024 13:30	The SSO volume was estimated utilizing a standardized template which calculates the volume by using dimensional analysis. 	SPILL FLOWRATE AND VOLUME DETERMINATION BASED ON FLOWOUT PICKHOLE OR OPENING  DIAMETER OF PICKHOLE OR OPENING  0.75 INCHES HEIGHT OF WATER OUT OF PICKHOLE/OPENING  1 INCHES FLOWRATE PER PICKOLE/OPENING (GPM)  2 GPM # OF PICKHOLES/OPENINGS 1 TOTAL FLOWRATE (GPM)  2 GPM DURATION OF SPILL (MINUTES)  51 MINUTES TOTAL FLOW (GALLONS)  104 GALLONS	Debris-General		Gravity Mainline		Vitrified Clay		60	It was estimated that approximately 104 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment, and subsequently the entire amount was returned back to the systems.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		A CWCD crew was immediately dispatched to the incident location and determined that 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 1:30 PM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		On Thursday, September 26, 2024, at 12:39 PM, the Clean Water Conveyance Division (CWCD) received a report of maintenance hole overflowing at 2678 South Anchor Avenue (TG 632-G5). A CWCD crew was immediately dispatched to the incident location and determined that 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 1:30 PM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.		09/26/2024 13:30	On Thursday, September 26, 2024, at 12:39 PM, the Clean Water Conveyance Division (CWCD) received a report of maintenance hole overflowing at 2678 South Anchor Avenue (TG 632-G5). A CWCD crew was immediately dispatched to the incident location and determined that 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 1:30 PM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.  		None At This time.	09/26/2024 13:30														None at this time	None at this time	The sewer will be placed on a quarterly cleaning schedule.	None at this time	The sewer will be placed on a quarterly cleaning schedule.	None at this time	The sewer will be placed on a quarterly cleaning schedule.	On Thursday, September 26, 2024, at 12:39 PM, the Clean Water Conveyance Division (CWCD) received a report of maintenance hole overflowing at 2678 South Anchor Avenue (TG 632-G5). A CWCD crew was immediately dispatched to the incident location and determined that 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 1:30 PM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.	None At This time.	
2	2SSO10089	Active	Almonte sd CS	Almonte SD	896694	1.5	Certified	Shonn Dougherty	District Manager		22-OCT-24	22-OCT-24	Monthly Category 3 Spill	103 Rising Rd	09/25/2024 08:30	09/25/2024 08:40	09/24/2024 22:00				Photos attached, roots and wipes from houses above caused manhole to overflow late night into morning	37.88947	-122.52737	Manhole			650	manhole overflow 30 yards down street to flat surface below, vactor cleaned up street	N						300	Paved Surface; Unpaved Surface		destination on paved street and patches of unpaved dirt surrounding area	N									09/25/2024 09:30	number of houses in district and gallons flow to treatment plant per day, average flow per house, then night time average flow from 10pm to 9am, 20 houses on the SSO line, 20 houses multiplied by gallons estimated at that time of day 10pm-9am	Almonte accounts for 3% of 1.6MGD at treatment plant, half a days flow with late night flow	Debris from Lateral; Debris-wipes/Non-disposables		Manhole		Vitrified Clay		20	minor surface impact	N	Cleaned Up (specify below); Restored Flow		vactor and jetted area with response truck	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Plan Rehabilitation or Replacement of Sewer		video line and consider replacement		09/25/2024 10:15	District line SSO caused by wipes and roots at manhole flowed to street below through the night, our emergency response will be looked into, outsource to response team has to be reviewed, will be adding this line to more frequent line cleaning until repair is performed.		engineers and District collaborating to include line in extra cleanings and spot repair as needed	10/15/2024 12:00														add more frequent cleaning of line to existing cleaning program	two to three times a year clean this line until replacement if needed	yes	yes	yes	upcoming	Roto Rooter will clean line more often and line is to be considered in upcoming CIP.	24 hour response answering system, modifying reliability and contacts	engineers and District collaborating to include line in extra cleanings and spot repair as needed	
5S	5SSO11055	Active	Southeast Regional Waste Disp Fac CS	Lake Cnty	896695	1.2	Certified	Steven Phillips	Utility Systems Compliance Coordinator	27-SEP-24	27-SEP-24	27-SEP-24	Category 1 Spill	Intersection of Palmer Ave. and golf Ave., Clearlake, CA 95422	09/27/2024 09:08	09/27/2024 09:20	09/27/2024 09:00	09/27/2024 10:45	24-5474		Appearance point was from a pick hole in an existing SSMH located at the intersection of Palmer Ave. and Golf Ave., in the City of Clearlake, Ca 95422	38.95074	-122.63586	Manhole	N/A	None	150	Spill from the SSMH was onto a 30' wide paved road surface, then flowed downslope approximately 75' into an existing storm drain curb inlet.	Y	Spill from the SSMH was onto a 30' wide paved road surface, then flowed downslope approximately 75' into an existing storm drain curb inlet.	0	75	Discharge was into an existing roadside curb inlet approximately 75' downslope of the appearance point.	75	75	Drainage Conveyance System that discharges to surface water; Paved Surface	N/A	Spill wetted area = 30' wide x 75' long terminating into an existing curb drainage inlet.	Y	38.95074	-122.6358							09/27/2024 09:56	Flow from the SSMH pick hole was estimated at 2- 3gpm with a duration of 49 minutes for a total of 150 gallons	We were first notified of a possible spill at 9:08am and spill was contained at 9:56am for a total of 49 minutes x 3gpm = +/-150 gallons.	Debris-General; Fats, Oil and Grease (FOG)	N/A	Manhole	N/A	Vitrified Clay	N/A	60	Spill impacted the existing stormwater drainage system because we were not able to recover the entire spill volume.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	Puddled spill volume was vacuumed up, the paved road surface had lime spread over it for sanitation and spill warning signs were placed at the site.	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV	N/A	All mainlines in this area will be cleaned and inspected. Any area's found that need repairs will be placed onto the schedule for repairs.	None	09/27/2024 12:30	FOG and debris 5' downslope of the SSMH were found to have reduced the pipe volume which allowed the very shallow SSMH to overflow.	N	N/A		Clear Lake	Lake		Clear Lake	None	Other (specify below)	None 	N/A	0	N	N	N/A	N/A									N/A	
5S	5SSO11055	Active	Southeast Regional Waste Disp Fac CS	Lake Cnty	896701	1.2	Certified	Steven Phillips	Utility Systems Compliance Coordinator	29-SEP-24	01-OCT-24	01-OCT-24	Category 1 Spill	15323 Austin Road, Clearlake, CA 95422	09/29/2024 09:41	09/29/2024 09:46	09/29/2024 09:41	09/29/2024 12:34	24-5511		Sewer manhole overflow near the intersection of Austin Road and Dexter Lane in Clearlake, CA. Spill was onto paved surface then into existing storm drain curb inlet with flows to Clear Lake.	38.958115	-122.627594	Manhole	N/A	N/A	450	Sewer spill from an existing manhole located near the intersection of Austin Road & Dexter Lane, Clearlake, CA 95422. Spill flowed approximately 220' downslope on a paved road surface to an existing storm drain inlet. Crews we able to capture approximately 100 gallons and returned that back into to sewer collection ssystem.	Y	Storm Drain inlet downslope from manhole.	100	350	Unknown if discharge reached a surface water	0	100	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)	N/A	Spill entered a grated storm drain inlet downslope of the SSMH that overflowed	Y	38.95817	-122.62764	38.9582	-122.62833					09/29/2024 10:35	Estimated flow rate of 7.5 GPM x 60 minutes = 450 Gallons total.	Call received by answering service at 9:08am stating that spill had started around 9am. Spill overflow stopped by 10am, with normal flow restored at 10:35am.	Debris-wipes/Non-disposables	N/A	Manhole	N/A	Vitrified Clay	N/A	60	Spill volume onto paved surface was recovered, spill volume into storm drain was not recovered. All storm drains eventually drain into Clear Lake.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	None	Puddles of sewage wee vacuumed up, lime was spread onto wetted surfaces, and spill warning signs were placed to notice the public.	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV	None	Spill was caused by a buildup of flushable wipes and TP in the mainline. Property owners in this area will be informed not to flush those types of wipes.	N/A	10/01/2024 10:45	Spill was caused by a buildup of flushable wipes and TP in the mainline. Property owners in this area will be informed not to flush those types of wipes.	N	N/A		Clear Lake	Lake; Stream/Creek	N/A	Roadside drainage ditch and Clear Lake	None	Other (specify below)	No impact to public access	N/A	0	N	N	N/A	N/A									N/A	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	896702	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		07-OCT-24	07-OCT-24	Monthly Category 3 Spill	2401 North Canyon Oak Drive	09/27/2024 10:37	09/27/2024 11:41	09/27/2024 10:37				The initial crew arrived at 11:41 A.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew bypassed the line and the back up ceased. A contractor was mobilized to repair the line.	34.114309	-118.313447	Manhole			118	See attached photos. Crew established by pass.	N		0				118	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	34.114409 -118.313707	Y	34.114309	-118.313447	34.11462	-118.313558	34.114409	-118.313707			09/27/2024 15:50	The SSO volume was estimated utilizing a standardized template which calculates the volume by using dimensional analysis.	VOLUME OF A SPILL CONTAINED IN A RECTANGULAR AREA  LENGTH 900 FEET WIDTH 0.7 FEET DEPTH 0.3INCHES 0.0250 FEET VOLUME 15.75 FT3 118 GALLONS	Vandalism (specify below)	Illegal dumping of cement or plaster	Gravity Mainline		Concrete		98	It was estimated that approximately 118 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned All Spill to Sanitary Sewer System		On Friday, September 27, 2024 at 10:37 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 2401 North Canyon Oak Drive (TG 593-G2). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew established a bypass, and the backup ceased at 3:50 PM. The cause of the blockage was vandalism. All necessary clean-up was then performed.  It was estimated that approximately 118 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		None at this time		09/27/2024 15:50	On Friday, September 27, 2024 at 10:37 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 2401 North Canyon Oak Drive (TG 593-G2). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew established a bypass, and the backup ceased at 3:50 PM. The cause of the blockage was vandalism. All necessary clean-up was then performed.  It was estimated that approximately 118 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   		None at this time	09/27/2024 15:50														Will be forwarded to The City of Los Angeles Industrial Waste Management Division	None at this time	The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	Not at this time	The asset will be repaired by an on call City contractor	Not at this time	The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	On Friday, September 27, 2024 at 10:37 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 2401 North Canyon Oak Drive (TG 593-G2). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew established a bypass, and the backup ceased at 3:50 PM. The cause of the blockage was vandalism. All necessary clean-up was then performed.  It was estimated that approximately 118 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	None at this time	
2	2SSO10184	Active	San Rafael SD CS	San Rafael Sanitation District	896703	1.6	Certified	Philip Buckley	Principal Civil Engineer	30-SEP-24	11-OCT-24	11-OCT-24	Category 1 Spill	411 4th St.	09/26/2024 18:35	09/26/2024 19:05	09/26/2024 17:00			09-OCT-24	Spill appeared from a private clean out in sidewalk in front of 411 4th St. 	37.97178	-122.51796	Lateral Clean Out (Private)			397	Spill came out of clean out in front of 411 4th st in sidewalk went into curb and gutter and traveled down the gutter pan to storm drain CB1702. From CB it entered storm line and traveled to storm pump station.	Y	Storm concrete catch basin that  has 18  concrete pipe and then goes into 36  corrugated metal pipe and travels to storm water pump station PS53 	54	343	discharge point is storm water pump station PS53	343	54	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)	The spill amount of 54 gallon on draft report has been updated to 397 gallons. The reason for update is that there was evidence of a bigger spill the what was first observed.  	It entered the storm drain at CB1702 corner of 4th st and Grand ave. From CB1702 it traveled through storm pipes and ended up at storm water pump station PS53 located behind Montecito shopping center. That pump station is back feed from bay and runs constantly. 	Y	37.96904	-122.51554							09/26/2024 20:20	Spill volume was calculated by using total time of spill and upstream lateral connections. For the water usage we referred to the Marin Municipal Water District water consumption report for single family homes and businesses for each property	Call came in to police department by Casey Glen. Start time was determined by talking to Casey and asking when he noticed and reported the spill. End time was determined by when crew relieved blockage. 	Debris from Lateral; Debris-Rags; Debris-wipes/Non-disposables	Line is flat and we are currently designing new line with more slope.	Gravity Mainline		Vitrified Clay	We are estimating the age of pipe based on homes constructed on that street.  	80	no observed impacts	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Our after hours contractor first tried to clear blockage through clean out and had trouble with the equipment on hand so we had our hydro come out and run mainline to clear blockage. After flow was restored our crews cleaned up curb and gutter by washing down with disinfectant and water and removing all wash water with hydro.  	Adjusted Schedule/Method of Preventive Maintenance; Plan Rehabilitation or Replacement of Sewer; Post Spill CCTV		Line will be added to more frequent cleaning schedule and currently working on plans to have line replaced.	Unknown at this time	09/26/2024 21:15	The next day crew went out and televised line and found it to be flat and has standing water.	N			San Rafael Creek	Stream/Creek		Creek that connects to San Rafael Bay.	none	Other (specify below)	no public access impact.	Water body wasn't closed	0	N	N												
2	2SSO10177	Active	San Carlos City CS	San Carlos City	896716	1.2	Certified	Seven J Machida	Public Works Director		01-OCT-24	01-OCT-24	Monthly Category 3 Spill	Old County at Bragato	08/07/2024 10:30	08/07/2024 10:35	08/07/2024 10:27				Spill was located on the corner of Bragato and Old county road	37.5147531	-122.2675511	Manhole			165	Spill started at 235 Old County Rd and traveled 510' to Catch basin 383. 	Y	Spill entered 16'' storm main	46				165	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		Spill was on the street curb and gutter as well as the storm drain main line	Y	37.51478	-122.26727	37.516289	-122.2649346					08/07/2024 10:38	When public works inspector noticed the spill, it had only just started and not reached the storm drain. We used the amount of time the manhole was flowing and the gpm compared to the flow chart. 	 We used the amount of time the manhole was flowing and the gpm compared to the flow chart. 	Fats, Oil and Grease (FOG)		Gravity Mainline		Other (specify below)	Polyethylene	15	The spill was on the street, curb and gutter and entered the storm main line. All of the spill was collected and returned to the sewer system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Spill was contained using sandbags and a hog mat. Once the blockage was stopped and the flow was restored, the area was cleaned and the storm main line was jetted and vacced. 	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Added main segments in the area to jetting list.		08/07/2024 11:41	The CCTV showed a grease area of concern. The main line was cleaned multiple times to ensure no grease buildup was present.  		Cleaning schedule adjusted	08/07/2024 12:19														N/A	Added main segments in the area to jetting list.	Added to 12 month cleaning list	N/A	CCTV showed no areas that need repairs	N/A	N/A	N/A	Cleaning schedule adjusted	
8	8SSO10620	Active	EVMWD Regional Plant CS	Elsinore Valley Municipal Water District	896718	1.1	Certified	Jesus Barron	Collections System Worker III		30-SEP-24	30-SEP-24	Monthly Category 3 Spill	5001 Nichols Temp	09/27/2024 19:57	09/27/2024 21:36	09/27/2024 17:37				Spill point is at manhole on Pierce Rd.	33.70532	-117.36469	Other Sewer System Structure	Force main isolation valve		480	Approximately 20ft from manhole 	N						60	Unpaved Surface		Spill originated from manhole and flowed down a dirt road approximately 20ft. 										09/27/2024 23:58	Calculations are from duration of spill in minutes multiplied by spill flow measured in gallons per minute.   	Used the manhole overflow gauge created by the Southern Section Collections System Committee, and then calculation are from duration of spill in minutes multiplied by spill flow measured in gallons per minute.   	Operator Error (specify below)	Private contractor left isolation valve in closed position	Other (specify below)	No failure in the system, caused by private contractor error	Other (specify below)	N/A	12	Minimal impact, no property damaged	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Berm around manhole, Disinfected and cleaned up area. 	Other (specify below)	Performed entry to place isolation valve into open position 	Have agency inspector perform a thorough inspector to ensure that valve are in proper open/close position.		09/28/2024 00:00	Identified that private contractor left isolation valve in the closed position. 		Performed investigation on lift station system to ensure it is functioning properly.	09/30/2024 09:00														N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	Performed investigation on lift station system to ensure it is functioning properly.	
8	8SSO10560	Active	Riverside City CS	Riverside City	896719	1.2	Certified	Kevin Street	Wastewater Operations Manager	30-SEP-24	10-OCT-24	10-OCT-24	Category 1 Spill	4646 Brockton Ave x Tequesquite Ave	09/26/2024 10:53	09/26/2024 11:20	09/26/2024 10:41	09/26/2024 12:07	24-5451		Contractor performing emergency repair of collapsing 36  sewer trunk line bypass failed to keep up with incoming flow and caused upstream manhole to overflow.   See attached map and spill photo. See attached spill summary document.	33.97559	-117.38432	Manhole		Second nearby manhole.  Spill manholes designated as Manhole 1 (MH#1) and Manhole 2 (MH#2) for report summary and photo purposes. See attached summary and photo document. 	20615	Manholes discharged into private roadway and into storm drain. See attached photo and map	Y	Storm drain system catch basin and underground pipe. 	12777	0	Rectangular concrete storm drain channel discharging to vegetated water course draining to Santa Ana River. Berm constructed soon after spill notification and flows impounded in concrete conveyance channel.  	7838	12777	Drainage Conveyance System that discharges to surface water		Spill emanated from two manholes within close proximity to one another.  overflowing manholes entered to connected catch basins which discharge to a common storm conveyance pipeline. City storm drain system connects to a county owned concrete rectangular, open flood control channel which discharges to the Santa Ana River. Flows travelled the length of the concrete channel (4,766') to where it connects to a vegetated water course connoted to the Santa Ana River. The flood control channel has persistent dry weather nuisance flows calculated 167 gpm based on field observations and measurements. See attached summary and phot document. 	Y	33.97558	-117.38435	33.97817	-117.3898	33.97681	-117.39403	33.97571	-117.39874	09/26/2024 12:02	Photographs of overflowing manholes cross referenced against charts of spill flow rates multiplied by the duration of the spill. Dye test conducted to determine time of spill travel from receiving catch basins to end of containment area. Travel time of flows against time containment was established were used to determine volume of flows within and beyond containment. 	Spill start determined by call logs to City call center reporting emergency condition. City attempted to contact reporting party via phone and email to narrow in start time, but messages were not returned. Spill stop time determined by time when contractor resort full bypass condition and when containment was establish by constructing dirt berm in flood control channel (photo time stamp).	Construction Diversion Failure		Manhole		Vitrified Clay		15	Spill onto paved surface and into storm drain catch basins (2). Unable to determine impacts of the spill as the City is uncertain whether in fact any spillage entered the Santa Ana River. In responding to the spill, operators documented removing 12,000 of standing water from the vegetated channel beyond the containment berm via vacuum truck. Staff inspected the vegetated channel on foot for any other standing pools but did not observe any needing removal. City was unable to determine what percentage of standing water beyond containment was sewage vs. nuisance runoff. Calculations determined that as much as 12,851 gallons had flowed beyond the containment boundary before containment was established. Again, & noting the 12,000 gals recovered vs. the calculated sum of nuisance and sewer volumes 12,851 gal agree, because the City was unable to determine the percent of sewage in the standing water, the full potential non-nuisance component is being reported as unrecovered; 7,838 gallons. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Contractor directed to immediately increase bypass pumping to restore flow. City mobilized backhoe and dump truck to establish a dirt containment berm in the downstream terminus of the flood control channel where spill flows were destined. City immediately began 1. collecting visible water in vegetated channel beyond containment berm. 2. City began vacuuming comingled sewer and nuisances flows within containment. 7 vacuum trucks and 33 front line workers were dispatched in response.. 3. City added dye tablets to affected catch basins and flushed storm system with approximately 8,000 gallons of clean water as measured by construction water meter. 4. City documented emergency of dye from underground portion of system and flushed until dye no longer present. 5. City recovered all dyed, potential sewage, and nuisance flows collected within containment from 9-26-24 through 9-30-24 and until flood channel was dry. 6. City removed containment berm on 10-1-24.	Other (specify below)	Restored facilities to operation. Post incident investigation of contractor practices and City readiness in response to contractor bypass operations. 	City will procure equipment and supplies to for additional spill response readiness beyond current capabilities, including additional portable pumping and spill containment capabilities. 	Additional equipment purchases underway and to be completed as soon as possible. 	10/01/2024 14:30	Contractor error. City debrief revised protocols for City and contractor readiness when repairs will involve bypass pumping. See attached summary.	N			Santa Ana River	River		River	None observed from visual observations. No flows observed connecting to the River mainstem. 	Restricted Public Access		N/A	0	N	Y	Samples collected from water within containment and beyond containment berm within vegetated channel.	Total and Fecal Coliform, Ammonia, TSS - Total Suspended Solid, TDS - Total Dissolved Solid, COD- Chemical Oxygen Demand										
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	896724	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	01-OCT-24	10-OCT-24	10-OCT-24	Category 1 Spill	4550 Heafey Road, Oakland Ca	09/28/2024 13:53	09/28/2024 14:05	09/28/2024 12:30				Lamp-hole in street overflowing, the sewage was flowing on the curb and gutter and into the nearest creek named Lyon creek, Arroyo Viejo creek, and Damon Slough.	37.76633	-122.13374	Other (specify below)	Lamp-hole in street.		219	Lamp-hole in street overflowing, the sewage was flowing on the curb and gutter and into the nearest creek named Lyon creek, Arroyo Viejo creek, and Damon Slough.	Y	Creek named Lyon creek, Arroyo Viejo creek, and Damon Slough.	0	219	 Creek named Lyon creek, Arroyo Viejo creek, and Damon Slough.	219	0	Street/Curb and Gutter (2 3); Surface Water		Lamp-hole in street overflowing, the sewage was flowing on the curb and gutter and into the nearest creek named Lyon creek, Arroyo Viejo creek, and Damon Slough.	Y	37.76633	-122.13374							09/28/2024 16:09	Spill Duration: 219 minutes x 1 Gal per minute= 219 Gals spilled.	Start time was based on eyewitness account. End time was based on when responding crew restored flow.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		99	219 overflowed eight-inch maintenance hole into the street and gutter area and flowing into the creek. Arroyo Viejo Creek.	N	Contained All or Portion of Spill; Restored Flow		Sewer staff rinsed and vacuumed the sewage in the street curb and gutter area.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		CCTV inspection of the sewer line showed fats oils and grease to be the potential cause of the overflow. Main line has been placed on six-month high frequency hydro program. W.O. 1560927	Main line has been placed on six-month high frequency hydro program. W.O. 1560927.	09/30/2024 09:32	CCTV inspection W.O. 1560810 of the sewer line showed fats oils and grease to be the potential cause of the overflow. Main line has been placed on six-month high frequency hydro program. W.O. 1560927	N			Arroyo Viejo Creek	Stream/Creek		Creek	None.	Other (specify below)	None.	N/A	0	Y	N												
4	4SSO10498	Active	UC Los Angeles CS	UC Los Angeles	896737	1.3	Certified	Ivy Nunez	Environmental Compliance Specialist	01-OCT-24	11-OCT-24	11-OCT-24	Category 1 Spill	Trash Compactor Room at Laurel Apartments	10/01/2024 15:15	09/29/2024 10:30	09/29/2024 10:30	10/01/2024 15:36	24-5561		The drain within the trash compactor room located at the Laurel Apartments, backed up and overflowed. The sewer overflow spilled over the threshold, into the nearby planter section and off the sidewalk. The spill went downhill about 300 feet to the closest storm drain. A fire hydrant was turned on to dilute the sewage as it flowed to the storm drain. 	34.06283	-118.45052	Inside Building or Structure			2000	Sewage mixed with fire hydrant water summed up to about 2,000 gallons.	Y	Storm Water Conveyance System within MS4. Drain commingles with City storm system, then enter Sepulveda Canyon Channel, then to the tributary Ballona Water Creek.	0	2000	Storm Water Conveyance System within MS4. Drain commingles with City storm system, then enter Sepulveda Canyon Channel, then to the tributary Ballona Water Creek.	2000	0	Drainage Conveyance System that discharges to surface water		The drain within the trash compactor room located at the Laurel Apartments, backed up and overflowed. The sewer overflow spilled over the threshold (34.06279, -118.44944), into the nearby plantar section and off the sidewalk. The spill went downhill about 300 feet to the closest storm drain located at 34.061581N, 118.448537W. A fire hydrant was turned on to dilute the sewage for 3 hours as it flowed to the storm drain.	Y	34.06279	-118.44944							09/29/2024 16:00	Method used to determine spill volume was based on the eyeball method and duration of flow. Approximately 3 gallons of sewage per minute flowed in combination with the fire hydrant water at the same rate for 5.5 hours. Approximately 2,000 gallons was the volume of the spill. 0 gallons of spill were covered. 	Onsite personnel were able to determine start and stop time.	Other (specify below)	Blockage in main line causing flow to slow down and ultimate overflow from drain in trash compactor room. 	Other (specify below)	Main line for all three buildings	Polyvinyl Chloride (PVC)		3	No impact of spill	N	Cleaned Up (specify below)		Sewage left over was squeegeed into the street that flowed to storm drain with fire hydrant water.   The team followed up with sanitizing of the areas utilizing the following products� a.Bleach b.Breakdown Enzyme Odor Eliminator c.Waxie 630 Fresh Mist Air Freshener	Adjusted Schedule/Method of Preventive Maintenance		Re-train staff on SSO clean up, and reporting. Ensure Sewer Managment Plan procedures is followed requiring proper preventative maintenance.	Estimated completed December 31, 2024.	09/29/2024 16:30	The internal plumbing staff reviewed sewage system, used a jetting system to determine if blockage was occurring. Once a blockage was determined to be the cause, jetting was used to push out blockage and clear piping which resulted in stopping the overflow. 	N			Ballona Creek	Other (specify below)	Ballona Creek is a nine-mile-long flood protection channel that drains to the Los Angeles basin	Ballona Creek is a nine-mile long flood protection channel that drains the Los Angeles basin, from the Santa Monica Mountains on the north, the Harbor Freeway (110) on the east, and the Baldwin Hills on the south. The Ballona Creek Watershed totals about 130 square miles. Its land use consists of 64% residential, 8% commercial, 4% industrial, and 17% open space. The major tributaries to the Ballona Creek include Centinela Creek, Sepulveda Canyon Channel, Benedict Canyon Channel, and numerous storm drains. The watershed is comprised of all or parts of the Cities of Beverly Hills, Culver City, Inglewood, Los Angeles, Santa Monica, West Hollywood, and unincorporated Los Angeles County.	None	Other (specify below)	No impact	Ballona Water Creek Managment	0	N	N												
4	4SSO10429	Active	Santa Clarita City CS	City of Santa Clarita 	896738	1.3	Certified	Eric Liu	Civil Engineer	01-OCT-24	08-OCT-24	08-OCT-24	Category 1 Spill	1257-0016 (26913 Pinehurst Drive, Santa Clarita)	10/01/2024 10:37	09/24/2024 11:30	09/24/2024 10:30	09/24/2024 12:29	24-1501		CSMD Map Sheet No. 1257 Overflowing Manhole No. 16 MMS No. 8973190	34.41209	118.57197	Manhole			3000	Sewage spill discharged from Manhole No. 16 to the land and private drain.	Y	Private drain	0	50	Sewage spilled from Manhole 16, dissipating into the soil, with a small portion entering a private drain within the watershed boundary of Santa Clara River. 	50	0	Drainage Conveyance System; Unpaved Surface		Sewage spilled from Manhole 16, dissipating into the soil, with a small portion entering a private drain within the watershed boundary of Santa Clara River. 	N									09/24/2024 12:30	CWEA SSCSC Manhole Gauge, visual, and time of notification.	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops. 	Debris-General; Debris-Rags; Debris-wipes/Non-disposables; Root Intrusion		Gravity Mainline		Vitrified Clay		25	No impacts. 	N	Cleaned Up (specify below); Other (specify below); Other Enforcement Agency Notified; Restored Flow	Upon arrival, we met with a landscaper for the neighborhood above Valencia Country Club. Residents had reported an odor from the golf course, and he found Manhole 16 overflowing. We inspected the area to determine how to clean the line, but access was difficult. The golf course denied entry due to the size of our vehicle, so we used a stormwater basin next to the course. After several attempts, we cleared the stoppage using hydro-jetter equipment. We saturated the spill area with fresh water and notified all required agencies. 	Upon arrival, we met with a landscaper for the neighborhood above Valencia Country Club. Residents had reported an odor from the golf course, and he found Manhole 16 overflowing. We inspected the area to determine how to clean the line, but access was difficult. The golf course denied entry due to the size of our vehicle, so we used a stormwater basin next to the course. After several attempts, we cleared the stoppage using hydro-jetter equipment. We saturated the spill area with fresh water and notified all required agencies. 	Other (specify below)	To inspect sewer using CCTV to determine if further actions are needed. 	We will have the segment televised, if possible, from Manhole 245 to 15. Based on the CCTV results, we will defer future inspections and preventive maintenance planning to the field engineer. We will continue performing routine inspections and cleanings.	N/A	09/24/2024 14:30	N/A	Y	To determine the safest and most efficient methods for maintaining the sewer segments on the golf course. 	11/25/2024 10:26	Santa Clara River	River		Santa Clara River	No impacts. 	Other (specify below)	No impacts. 	N/A	0	N	N											To determine the safest and most efficient methods for maintaining the sewer segments on the golf course. 	
4	4SSO18098	Active	Rancho Palos Verdes - Central CS	Rancho Palos Verdes City	896739	1.3	Certified	Juan Hernandez	Public Works Superintendent 		04-OCT-24	04-OCT-24	Monthly Category 3 Spill	22 Narcisa Lane 	09/30/2024 12:30	09/30/2024 13:00	09/30/2024 12:00				An eight (8)  inch main line uncoupled and broke apart	33.74431	-118.37768	Gravity Mainline		Pipe broke due to land movement 	600	The photo shows the side in an active landslide that is constantly moving. 	N						400	Unpaved Surface		The spill was caused by a land movement that distorted the 8 inch pipe. Spill occurred at the base of the pipe on dirt. 	Y	33.74432	-118.37772							09/30/2024 14:00	Serving 270 people for two hours. at a reducing usage of 25 g per person in time frame  of 2 hours	From when observed to when mitigation controls were in place. 	Natural Disaster (specify below)	Land movement	Gravity Mainline		Other (specify below)	HDPE	24	Spillage occurred in un inhabit area and away from the public. 	N	Contained All or Portion of Spill; Restored Flow		The abetment team was on site within 30 minutes and rerouted sewage while repairs were underway. 	Repaired Facilities or Replaced Defect		 We  repaired and reset the pipe. We will continue to monitor as the land movement  is ongoing and cannot guarantee 		10/03/2024 12:00	We found the root cause to be land movement. 		Site inspections and map reviews.	10/04/2024 16:19														NA	land movement  is ongoing 	continued  monitoring	NA 	8 inch sewer line 	not part of capital improvement 	NA	The sewer was diverted while repairs and clean-up occurred. 	Site inspections and map reviews.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	896754	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	02-OCT-24	14-OCT-24	14-OCT-24	Category 1 Spill	12079 Broadway Terrace, Oakland Ca	09/29/2024 21:57	09/29/2024 23:57	09/29/2024 23:30				Lateral cleanout (Private) overflowing in front driveway, the sewage was flowing into the gutter area in the street.	37.84194	-122.21429	Lateral Clean Out (Private)			300	Lateral cleanout (Private) overflowing in front driveway, the sewage was flowing into the gutter area in the street.	Y	Storm drainage pipe called Temescal creek.	0	300	Storm drainage pipe called Temescal creek, the creek is a dry bed creek.	300	0	Drainage Conveyance System		Lateral cleanout (Private) overflowing in front driveway, the sewage was flowing into the gutter area in the street leading to a separate storm drain.	Y	37.84194	-122.21429							09/30/2024 01:10	100 min x 3 gpm = 300 gallons total spilled.	Start time was based on eyewitness account. End time was based on responding sewer crew restoring the flow in the mainline.	Root Intrusion		Gravity Mainline		Vitrified Clay		99	Lateral cleanout (Private) overflowing in front driveway, the sewage was flowing into the gutter area in the street leading to a separate storm drain flowing into Temescal Creek dry bed where the water soaked into the soil.	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow	Staff washed and cleaned in the street area.	Staff washed, cleaned, and vacuumed the sewage in the street area.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Line was added to six months power rod high frequency maintenance program, W.O. # 1563715. Line was added to six months hydro high frequency maintenance program, W.O. # 1563718.	Line was added to six months power rod high frequency maintenance program, W.O. # 1563715. Line was added to six months hydro high frequency maintenance program, W.O. # 1563718.	10/01/2024 10:26	CCTV inspection, W.O. # 1561008, confirmed root intrusion in the mainline to have been the potential cause of the overflow.	N			Arroyo Viejo Creek	Stream/Creek	Dry bed creek	Dry bed creek	None.	Other (specify below)	None.	N/A	0	Y	N												
2	2SSO10179	Active	San Jose City CS	San Jose City	896756	1.2	Certified	Ben Nguyen	Senior Engineer	02-OCT-24	10-OCT-24	10-OCT-24	Category 1 Spill	130 Stockton Ave, San Jose CA 95126	09/29/2024 14:18	09/29/2024 14:58	09/29/2024 12:30	09/29/2024 14:14	24-5517		The location of the spill appearance point was a manhole in front of 130 Stockton Ave San Jose CA 95126 	37.33271	-121.9045	Manhole			1650	The spill discharged from a manhole and traveled along the street curb/gutter. From the curb gutter, the sewage reached  a nearby storm inlet which is part of tie City's storm drain system.  The spill reached an outfall (#67) discharging to the Guadalupe River. 	Y	The spill reached nearby storm drain inlet along Stockton Ave. This storm drain inlet (inlet #61420 on CJS' GIS) is connected to the City of San Jose's storm sewer drainage system. The sewage traveled within within the storm system and reach an outfall at Guadalupe River. 	0	1624	The sewage reached Gaudalupe River while discharging from storm outfall. The location o the storm outfall along the Guadalupe is approximately at location 37.33799722,-121.902244 	1624	26	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		The spill entered storm drain inlet #61420 on the Stockton Avenue and traveled to a outfall that discharge into the Guadalupe River at  37.33799722,-121.9022441.  	Y	37.332846189056	-121.9048888	37.33799722	-121.9022441					09/29/2024 15:15	Spill volume was estimated based on flow rate duration method.  Start time was assumed to be one hour prior to the reporting party's (RP) notice of the spill.  Duration was estimated at 165 minutes.  Flow rate was estimated as 10 gpm per video clip taken by the first responder. Spill recovered was calculated using measurements taken by crew during spill event. 	Spill start time was based on responding party observation and spill end time was based on when crew cleared the plug in the mainline. 	Pipe Structural Problem/Failure - Controls	In addition, CCTV discovered that other utility bored through the sanitary sewer pipe. 	Gravity Mainline		Vitrified Clay		75	Water reach the street and curb and gutter, but was cleaned up.  Water reached a storm outfall and Guadalupe River as was not recovered.  There is no directed impact to the general public as the spill were cleaned up.  Outfall was part of a planned reconstruction project.  Ammonia Test at outfall discharge point resulted in positive reading. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Upon arrived, crew placed containment were feasible.  Car war parked on top of the drain inlet where the water entered the inlet.  Crew cleared the plug, removed debris from sanitary system, restored the flow, performed ammonia test in SD MH, and identified outfall.  Crew checked outfall with ammonia test and the read was positive.  Crew cleaned up street with two truck method, notified appropriate agencies, and document the event. 	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer; Post Spill CCTV	Team will discuss with DPW to potentially replace the segment. 	CCTV inspection was performed immediately after the spill. DOT repair team has been notified and engineering is in coordination with the Public Works for a long term repair solution due to the extensive structural damage. Segment will be reinspected with CCTV in 3 months to assess the condition.  	Reinspect with CCTV in three months.  	09/29/2024 17:30	Staff reviewed the pic/video, notes, and information from the first responder.  The CCTV inspection result showed severe damage to the sanitary plug segment and also up stream and down stream segments. 	N			Guadalupe River	River		The Guadalupe River mainstem is an urban, northward flowing 14 miles river in California whose much longer headwater creeks originate in the Santa Cruz Mountains. The river mainstem now begins on the Santa Clara Valley floor when Los Alamitos Creek exits Lake Almaden and joins Guadalupe Creek just downstream of Coleman Road in San Jose, California. From here it flows north through San Jose, where it receives Los Gatos Creek, a major tributary. The Guadalupe River serves as the eastern boundary of the City of Santa Clara and the western boundary of Alviso, and after coursing through San Jos�, it empties into south San Francisco Bay at the Alviso Slough. 	No impact observed	Other (specify below)	Location of outfall is not accessible by the general public.  	Valley Water	0	N	N												
2	2SSO10099	Active	Burlingame City CS	Burlingame City PWD	896762	1.2	Certified	RICHARD HORNE	Streets, Storm Drain and Sewer Division Manager		02-OCT-24	02-OCT-24	Monthly Category 3 Spill	880 Burlway 	08/26/2024 11:09	08/26/2024 11:15	08/26/2024 11:09				The plumber on the scene working on the private lateral observed the lower lateral discharge while they were attempting to relieve the upper private lateral.	37.59635	-122.36599	Lower Lateral (Public); Manhole		The lower lateral and sewer MH are 25' apart from one another. The plumber surcharged the sewer lateral while attempting to mitigate a private issu	238	Sewer first responding crew arrived on the scene and observed the cleanout and mainline MH manhole had started to spill sewage. The spill traveled to the street gutter and proceeded down the street. The mainline blockage proved difficult to relieve, so staff placed a plug into a nearby storm inlet to ensure that no flows traveled into our conveyance system.  	Y	Gravity storm inlet that connects two storm pipes, then flows to another storm inlet	22				22	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		A plug was placed into the storm pipe to prevent any sewage flows into the conveyance system	Y	37.59628	-122.3656							08/26/2024 13:51	The spill traveled to the street gutter and proceeded down the street to a nearby catch basin. A Vac-con combination truck was called to setup a vacuum at the catch basin the spill was traveling towards. The catch basins� downstream storm line was plugged so that the catch basin could be used as a retention basin to collect the spill contents. A secondary combination truck was called to hydro-clean the mainline sewer blockage which had been blocked will large amounts of grease and debris. The blockage was relieved at 1:51pm. The 2 spill appearance points were washed down and disinfected. The catch basin was vacuumed out, cleaned, and disinfested.  Utilizing an online volume calculator with the catch basin dimensions of 34� x 25� We measured the flow over a 15-minute period. The plugged catch basin filled up 6� over the 15-minute period which equaled 22.1 gallons. 22.1 x 4 = 88.4 gallons over 60 minutes. Gallons per minute: 1.47 88.4 gallons divided by 60 minutes = 1.47 GPM 1.47 x 162 m	Duration and flow rate which supported the volume that was removed	Fats, Oil and Grease (FOG); Vandalism (specify below)	large concrete rocks and grease 	Gravity Mainline		Other (specify below)	HDPE	10	The spill impacted the roadway, curb and gutter	N	Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Staff placed a plug into storm pipe before flows reached the inlet	Added Sewer to Preventive Maintenance Program; Post Spill CCTV		staff performed confined space entry to remove concrete rock from downstream MH.		08/26/2024 14:21	Crews determined that a large concrete rock had flowed downstream from an unknown location, which allowed rags and grease to accumulate, which plugged the 10  sewer main.		The sewer system is 10 years old, so we are still trying to figure out where the cobcrete rock entered the system.	10/02/2024 14:24														none	locate how concrete rock entered system	yes	no	none found	already improved in 2014	NA	Our crews responded quickly and secured the conveyance system	The sewer system is 10 years old, so we are still trying to figure out where the cobcrete rock entered the system.	
5S	5SSO10958	Active	Grass Valley City CS	Grass Valley City	896765	1.2	Certified	Bjorn Jones	City Engineer		07-OCT-24	07-OCT-24	Monthly Category 3 Spill	150 Glasson Way	09/04/2024 11:40	09/04/2024 11:58	09/04/2024 11:15				Spill was contained on private property	39.22894	-121.0469	Manhole			360	Spill was contained on private property	N						360	Unpaved Surface		Spill was contained on private property, unpaved surface	Y	39.22894	-121.0469							09/04/2024 12:15	visual observation	Info gathered from RP and personnel on site	Debris-wipes/Non-disposables		Gravity Mainline		Other (specify below)	unknown	60	Spill was contained on private property, unpaved surface. The entire spill was recovered and the affected area cleaned and disinfected.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Spill was contained on private property, unpaved surface (self-contained due to topography). Blockage was cleared, flow restored. Affected area was cleaned and disinfected.	Other (specify below)	Property owner was warned to not allow  flushable  wipes to be flushed	Property owner was warned to not allow  flushable  wipes to be flushed. Weekly inspections of the lateral/manhole began.		09/04/2024 13:00	Mainline was clogged with flushable wipes from a lateral.		Weekly inspections of the lateral/manhole ongoing	09/04/2024 13:00														NA	NA	Weekly inspections of the lateral/manhole began.	NA	Inspecting weekly	NA	NA	NA	Weekly inspections of the lateral/manhole ongoing	
6A	6SSO11120	Active	Truckee Sanitary District CS	Truckee SD	896766	1.1	Certified	Rene Lopez	Operation and Maintenance Superintendent		03-OCT-24	03-OCT-24	Monthly Category 3 Spill	Martis Camp Lift station #1 across the street from 10285 Olana Dr.	09/03/2024 13:26	09/03/2024 13:34	08/30/2024 16:30				Please See Attached SSR Form and Spill Memo	39.292079	120.162479	Force Main; Pump Station		Please See Attached SSR Form and Spill Memo	950	Please See Attached SSR Form and Spill Memo	Y	Please See Attached SSR Form and Spill Memo	290				290	Drainage Conveyance System; Paved Surface		Please See Attached SSR Form and Spill Memo	Y	39.292079	120.162479							09/03/2024 13:35	Please See Attached SSR Form and Spill Memo	Please See Attached SSR Form and Spill Memo	Pipe Structural Problem/Failure - Installation		Force Main		Polyvinyl Chloride (PVC)		17	Please See Attached SSR Form and Spill Memo	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Please See Attached SSR Form and Spill Memo	Repaired Facilities or Replaced Defect		Please See Attached SSR Form and Spill Memo		09/05/2024 08:33	Please See Attached SSR Form and Spill Memo		NA	09/05/2024 08:38														Please See Attached SSR Form and Spill Memo	Please See Attached SSR Form and Spill Memo	No	No	Please See Attached SSR Form and Spill Memo	Please See Attached SSR Form and Spill Memo	Please See Attached SSR Form and Spill Memo	Please See Attached SSR Form and Spill Memo	NA	
6A	6SSO11120	Historical	Truckee Sanitary District CS	Truckee SD	896766	1.1	Certified	Rene Lopez	Operation and Maintenance Superintendent		03-OCT-24	03-OCT-24	Monthly Category 3 Spill	Martis Camp Lift station #1 across the street from 10285 Olana Dr.	09/03/2024 13:26	09/03/2024 13:34	08/30/2024 16:30				Please See Attached SSR Form and Spill Memo	39.292079	120.162479	Force Main; Pump Station		Please See Attached SSR Form and Spill Memo	950	Please See Attached SSR Form and Spill Memo	Y	Please See Attached SSR Form and Spill Memo	290				290	Drainage Conveyance System; Paved Surface		Please See Attached SSR Form and Spill Memo	Y	39.292079	120.162479							09/03/2024 13:35	Please See Attached SSR Form and Spill Memo	Please See Attached SSR Form and Spill Memo	Pipe Structural Problem/Failure - Installation		Force Main		Polyvinyl Chloride (PVC)		17	Please See Attached SSR Form and Spill Memo	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Please See Attached SSR Form and Spill Memo	Repaired Facilities or Replaced Defect		Please See Attached SSR Form and Spill Memo		09/05/2024 08:33	Please See Attached SSR Form and Spill Memo		NA	09/05/2024 08:38														Please See Attached SSR Form and Spill Memo	Please See Attached SSR Form and Spill Memo	No	No	Please See Attached SSR Form and Spill Memo	Please See Attached SSR Form and Spill Memo	Please See Attached SSR Form and Spill Memo	Please See Attached SSR Form and Spill Memo	NA	
2	2SSO10156	Active	Milpitas City CS	Milpitas City	896771	1.4	Certified	Daniel McVey	Utilities Division Manager 	03-OCT-24	16-OCT-24	16-OCT-24	Category 2 Spill	275 Ranch Drive	10/01/2024 10:06	09/28/2024 21:20	09/28/2024 20:36	10/03/2024 09:30			Manhole is located in the intersection of Ranch Drive and entrance to the shopping center. Flow was intermittent due to the time of day and the businesses that were upstream. The spill covered approximately a 15x5 area in the intersection. We were able to prevent it from going into the storm system, relieved the sewer spill with our vactor and cleaned up the area. All of the sewage stayed on the paved street. The main culprit appears to be grease from a few restaurants in the shopping area. Will have our FOG program reach out for further investigation and education. 	37.42981	-121.91922	Manhole			1455	Spill stayed in the street on Ranch drive and into the parking lot of the adjacent shopping center. 	N						1455	Paved Surface		Spill stayed in the intersection and belly of the street. Weather was extremely hot so we had evaporation as well. 	Y	37.42983	-121.91921	37.42977	-121.91922					09/28/2024 22:13	Our assumption then is that the spill was constant and going the whole time to error on the side of caution. We used the eyeball estimate and duration and flow rate to determine the spill size using worksheets from our sewer spill workbook. 	**Spill was intermittent due to the restaurant upstream using water at different times. Our operator left the scene to get equipment after initial arrival. When he got back at 9:15 the spill had stopped but we did not get good pictures.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		29	Immediate area around the manhole and intersection was covered in sewage. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Returned All Spill to Sanitary Sewer System		Crew was able to prevent sewage from getting into the storm system. We used the vactor to clear the blockage in the pipe. Then washed down the street and vacuumed up all effluent and returned it to the sanitary system. 	Other (specify below)	Passed on to our environmental compliance for FOG program enforcement. 	education of property owners on proper grease management. 	9/30 follow up cleaning of the line  10/7 referral to our Fog program 	10/11/2024 16:31	Grease was observed in the manhole as crews relieved the spill 	N												N													
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	896776	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	03-OCT-24	15-OCT-24	15-OCT-24	Category 1 Spill	12079 Broadway Terrace, Oakland Ca	10/01/2024 07:51	10/01/2024 09:30	10/01/2024 11:00				Lateral cleanout overflowing in the driveway of the property and the sewage was flowing down in the gutter area to the nearest storm inlet.	37.84194	-122.21429	Lateral Clean Out (Private)			479	Lateral cleanout overflowing in the driveway of the property and the sewage was flowing down in the gutter area to the nearest storm inlet.	Y	Storm drainage pipe flowing to a dry bed creek named Temescal creek.	0	419	Storm drainage pipe flowing to a dry bed creek named Temescal creek.	419	127	Building or Structure; Drainage Conveyance System; Street/Curb and Gutter (2 3)		Lateral cleanout overflowing in the driveway of the property and the sewage was flowing down in the gutter area to the nearest storm inlet. Basement in the structure was affected by the spill.	Y	37.84194	-122.21429							10/01/2024 11:00	Inside basement: Bedroom 11' L x 10' W x .02 D x 7.48 = 16 Gal Living Room: 16' L x 12' W x .02 D x 7.48 Gal = 30 Gal Inside basement: Bedroom 11' L x 10' W x .02 D x 7.48 = 16 Gal Bathroom: 6' L x 6' x .02 D x 7.48 Gal = 5 Gal Total Spill in Basement: 16 + 30 +16 + 5 = 67 Gallons Private Lateral Venthole Diameter: .5  x 4  height = 1.88 GPM 255 min x 1.88 GPM = 479 Gal Spilled recovered from paved surface: 202' L x 2' W x .02' D x 7.48 = 60 Gal Spill reached creek and unrecovered: 479 Gal- 60= 419 Gal 	Start time was based on eyewitness account. End time was based on responding sewer crew restoring flow in the mainline.	Root Intrusion		Gravity Mainline		Vitrified Clay		99	Lateral cleanout overflowing in the driveway of the property and the sewage was flowing down in the gutter area to the nearest storm inlet, the sewage spilled into Temescal Creek dry bed. Basement in the structure was affected by the spill. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Sewer staff cleaned, washed, and vacuumed the sewage in the gutter area. Claim packet was provided to resident to have a restoration company to clean and mitigate the effects of the spill in the basement.	Sewer staff cleaned, washed, and vacuumed the sewage in the gutter area. Claim packet was provided to resident to have a restoration company to clean and mitigate the effects of the spill in the basement.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Sewer line has been added to a six-month power rodder preventive maintenance program, W.O. # 1563715. Sewer line has been added to a six-month hydro preventive maintenance program, W.O. # 1563718.  Mainline has been CCTV inspected and found root intrusion to had been the potential cause of the overflow. W.O. # 1563869. 	Sewer line has been added to a six-month power rodder preventive maintenance program, W.O. # 1563715. Sewer line has been added to a six-month hydro preventive maintenance program, W.O. # 1563718. 	10/14/2024 09:20	Mainline has been CCTV inspected and found root intrusion to had been the potential cause of the overflow. W.O. # 1563869. 	N			Temescal Creek	Stream/Creek	Creek dry bed	Creek dry bed	None.	Other (specify below)	None	N/A	0	Y	N												
6B	6SSO11126	Active	Barstow CS	Barstow City	896777	1.2	Ready to Certify			03-OCT-24			Category 2 Spill	1103 E Main Street	10/01/2024 12:06	10/01/2024 12:17	10/01/2024 12:00				Upon arrival, it was observed that sewage was coming out of  manhole #262, and the Vactor truck was deployed. At 1235 began jetting line and at 1241 the blockage was unplugged at 228 feet into line. We recovered a ball of rags. The resident of the property stated that he just had his lateral cleaned out earlier that day, possibly causing the blockage. 	34.898731	117.012337	Manhole			1227	Spill ran approximately 2,360 feet. We began chlorinating the effected area.  	N						10	Street/Curb and Gutter (2 3)		Upon arrival, it was observed that sewage was coming out of  manhole #262, and the Vactor truck was deployed. At 1235 began jetting line and at 1241 the blockage was unplugged at 228 feet into line. We recovered a ball of rags. Spill ran approximately 2,360 feet down the street curb until it stopped.	Y	34.902097	117.014737							10/01/2024 12:41	Flow Estimation Charts	The spill volume can be estimated by multiplying the spill duration by the spill rate.	Debris from Lateral		Manhole		Vitrified Clay		40	N/A	N	Cleaned Up (specify below); Restored Flow		Disinfected area.	Adjusted Schedule/Method of Preventive Maintenance		Temporary placed on a visual inspection until further notice.	Weekly	10/01/2024 14:30	The resident of the property stated that he just had his lateral cleaned out earlier that day, causing the blockage. 	N												N													
4	4SSO10425	Active	San Dimas City CS	San Dimas City	896785	1.1	Certified	Eric Liu	Civil Engineer		05-NOV-24	05-NOV-24	Monthly Category 3 Spill	2387-0163 (1012 Via Romales, San Dimas)	10/02/2024 20:16	10/02/2024 21:45	10/02/2024 20:08				CSMD Map Sheet No. 2387 Manhole No. 163 MMS No. 9126199 There was a slight trickle of water discharging from Manhole No. 163.	34.06624	-117.82596	Manhole			250	Upon arrival, sewage was trickling out of manhole 163 into street/asphalt. 	N						0	Street/Curb and Gutter (2 3)		There was a slight trickle of water discharging from Manhole No. 163 and spread across the asphalt. 	Y	34.06624	-117.82596							10/02/2024 22:08	CWEA SSCSC Manhole Gauge.	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops. 	Debris-wipes/Non-disposables; Root Intrusion		Gravity Mainline		Vitrified Clay		38	N/A	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow	Washed down and left the street clean. No solids or paper waste were released. 	Upon arrival, sewage was trickling out of manhole 163 onto the street and asphalt. Rodder equipment was used to break down the mainline blockage caused by roots and wipes. Washed down and left the street clean. No solids or paper waste were released. Notified all required agencies.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Inspected sewer using CCTV and adjusted existing periodic to a 90-day rodder periodic. 		10/02/2024 23:15	Inspected sewer using CCTV (strong odor and debris)		N/A	10/16/2024 12:00														N/A	N/A	90-day rodder periodic.	N/A	N/A	N/A	N/A	N/A	N/A	
5S	5SSO10923	Active	Deer Creek CS	El Dorado Irrigation District	896786	1.1	Certified	John Chavers	Collection System Supervisor		04-OCT-24	04-OCT-24	Monthly Category 3 Spill	DC-2024-09-09	09/03/2024 08:58	09/03/2024 09:47	08/31/2024 11:01				See attachments	38.679083	-120.841816	Lateral Clean Out (Private)			257	See Attachments	N						50	Unpaved Surface		See Attachments	Y	38.679083	-120.841816							09/03/2024 10:17	See Attachments	See Attachments	Debris-Rags; Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Concrete		59	See Attachments	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Hydro-cleaned main line to clear blockage. Used shovels and bags to clean up around clean out. Flushed service line and area around clean out	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		See Attachments		09/03/2024 12:30	Roots, rags, and FOG evident.		Scheduled 1 year CCTV inspection to assess the effectiveness of scheduled chemical root control maintenance.	09/07/2025 16:00														NA	See Attachments	See Attachments	See Attachments	See Attachments	NA	See Attachments	See Attachments	Scheduled 1 year CCTV inspection to assess the effectiveness of scheduled chemical root control maintenance.	
5S	5SSO10895	Active	City Of Jackson CS	Jackson City	896787	1.3	Certified	Bree Wilder	PW superintendent 	03-OCT-24	08-OCT-24	08-OCT-24	Category 2 Spill	900 Broadway	10/02/2024 08:38	10/02/2024 08:44	10/02/2024 08:35				MH A001: located in a low lying parking lot north of the Meadows II Apartment Complex at 900 Broadway. Large majority of the spill was coming out of this manhole.  MHA001a: Located in the same parking lot approximately 25ft east of MHA001. Had a small amount spilling.	38.34427	-120.76308	Manhole		Both Manholes have very similar elevations in close proximity to one another	1550	Upon arrival of City crew sand bags were already placed by Apartments Maintenance Staff around the D.I that discharges to the creek and the spill had not yet reached the drain. The spill was pooling in the parking lot and flowing towards a ribbon drain which daylights near the DI that was blocked by sand bags.	Y	A concrete swale with ribbon gutters along a retaining wall at the north end of the parking lot. The outlet for the ribbon drain is at the Northwest corner of the parking lot where there is a low v ditch prior to entering the D.I, (a pipe penetrating the retaining wall) which flows north to the South Fork of the Jackson Creek.	1550	0			1550	Drainage Conveyance System; Paved Surface		The spill occurred in a low lying parking lot north of the Meadows II Apartments(900 Broadway). The spill pooled up in the parking lot until it reached a ribbon drain at the north end of the parking lot. Once it got to the ribbon drain it flowed west to the NW corner of the parking lot where it outlets to a concrete swale. The swale leads to a DI. The DI which is a pipe penetrating the northern parking lot retaining wall flows north  directly to the South Fork of the Jackson Creek. the DI was blocked with sand bags prior to the spill reaching it. 	Y	38.34424	-120.76309							10/02/2024 11:05	Since the DI was blocked prior to the spill reaching it and the paved parking lot being surrounded by retaining walls and concrete swales the crew was able to recover 100% of the spill. A vactor trailer with a capacity of 500 Gal made 4 trips 3 full loads which is 1500 gallons and one load for cleanup estimated at 200 gallons, 150 gallons being rinse water and 50 gallons of remaining spill. The spill was calculated to total 1550 gallons.	Start time was calculated using witness accounts as the Apartment manager witnessed the spill as it began coming out of MH#A001 at 0835 on 10/2/24  End time was determined by operators as they jetted the line down stream of the spill and witnessed the surge when the blockage was broken freed at 1105 on 10/2/24.	Debris-wipes/Non-disposables; Root Intrusion		Gravity Mainline		Vitrified Clay		55	Relatively no impact as the spill was fully recovered.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		At 0838 when the property owner called and notified the City of the spill an operator requested that the apartment maintenance try to block the storm drain inlet. Which the properties maintenance staff was able to do. When operators arrived on site at 0844 the Di was block by sand bags. additional sand bags were placed. Operators began rodding the immediate downstream sewer line from MH#A001. Some of the crew went to assess further downstream and some went to get the vactor trailer and begin recovery at 0915. It was found that the blockage was further downstream then initially thought. At approximately 0930 the rodder was moved to MH#S011. when the rodder was unsuccessful. Crew brought in a jetter. as the access to MH#S011 is off road in high weeds and fire danger is high the fire department was called for stand by. The Jetter started operations around 1045 and freed the blockage at 1105. Clean up began and the parking lot was rinsed down, swept, and sanitized. Soiled sandbags removed.	Added Sewer to Preventive Maintenance Program; Post Spill CCTV		Added to the Hotspot program for routine inspection and preventative maintenance. Consider educational bulletin/postings regarding non-disposable wipes	Will be re-assessed during the 2024 4th Qtr Hotspot program	10/04/2024 06:40	Roots and non-disposable wipes in a relatively flat line	N												N													
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	896790	1.1	Certified	Ameal McLaurin	Sewer Supervisor 2		04-OCT-24	04-OCT-24	Monthly Category 3 Spill	44th Avenue & Bancroft Avenue, Oakland Ca	09/18/2024 12:44	09/18/2024 13:20	09/18/2024 11:00				Mainline cleanout overflowing in the center of the street, the sewage was flowing to curb and gutters.	37.77315	-122.21309	Backflow Prevention Device; Other Sewer System Structure	Mainline cleanout.		184	Mainline cleanout overflowing in the center of the street, the sewage was flowing to curb and gutters.	N						184	Street/Curb and Gutter (2 3)		Mainline cleanout overflowing in the center of the street, the sewage was flowing to curb and gutters.										09/18/2024 14:00	60'L x 41'W x .01'D x 7.48-gal = 184 gallons	Start time was based on eyewitness account. The end time was based on responding sewer crew restoring the flow in the mainline.	Damage by Others Not Related to Collection System Construction/Maintenance; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		99	Mainline cleanout overflowing in the center of the street, the sewage was flowing to curb and gutters. Responding sewer crews washed, cleaned, and recovered the sewage in the spill area.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Responding sewer crews washed, cleaned, and recovered the sewage in the spill area.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		CCTV inspection W.O. #1558589 of the mainline showed grease deposition to have been the cause of the overflow. Mainline has been placed on 6-month high frequency hydro program, W.O. 1558594.		09/20/2024 10:30	CCTV inspection W.O. #1558589 of the mainline to be in condition, the inspection showed grease deposition to have been the cause of the overflow.		N/A	09/20/2024 10:30														N/A	Mainline has been placed on 6-month high frequency hydro program, W.O. 1558594.	Mainline has been placed on 6-month high frequency hydro program, W.O. 1558594.	N/A	CCTV inspection W.O. #1558589 of the mainline to be in condition, the inspection showed grease deposition to have been the cause of the overflow.	N/A	CCTV inspection W.O. #1558589 of the mainline to be in condition, the inspection showed grease deposition to have been the cause of the overflow. Mainline has been placed on 6-month high frequency hydro program, W.O. 1558594.	Mainline has been placed on 6-month high frequency hydro program, W.O. 1558594.	N/A	
2	2SSO10179	Active	San Jose City CS	San Jose City	896793	1.2	Certified	Ben Nguyen	Senior Engineer	04-OCT-24	16-OCT-24	16-OCT-24	Category 1 Spill	605 S 22nd St, San Jose, CA 95116	10/02/2024 10:00	10/02/2024 10:18	10/02/2024 09:00	10/02/2024 12:10	24-5583		The location of the spill appearance point was a manhole near 605 S 22nd St San Jose CA 95116 	37.33704	-121.86397	Manhole			1010	The spill discharged from the manhole and traveled along the street curb/gutter. From the curb gutter, the sewage traveled along the street and reached  a nearby storm inlet. This storm inlet is connected to the City of San Jose's municipal storm drain system. The sewage traveled within the storm municipal storm system to a storm outfall discharging to the Coyote Creek. 	Y	The spill reached nearby storm drain inlet along 22nd street. This storm drain inlet (inlet #61420 on CJS' GIS) is connected to the City of San Jose's municipal storm sewer drainage system. The sewage traveled within the storm system and reached an outfall at Coyote Creek. 	605	329	The sewage reached Coyote Creek while discharging from storm outfall. The location o the storm outfall along the Coyote Creek is approximately at location 37.334921071639, -121.867003235737	329	681	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water		The spill entered a storm drain inlet on 22nd street and traveled to a outfall that discharge into Coyote Creek at 37.334921071639, -121.867003235737 	Y	37.337345	-121.863736	37.334921071639	-121.867003235737					10/02/2024 10:41	Spill volume was estimated based on the spill measurement and flow rate duration provided by the crew.  Start time was assumed to be one hour prior to RP's notice. Duration was estimated at 101 minutes.  Flow rate was estimated as 10 gpm per video clip taken by the first responder. Spill recovered was calculated using measurements taken by crew during spill event. 	Spill start time was based on  the first responder obeservation and spill end time was based on when crew popped the plug in the mainline. 	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		15	Water reached the street and curb and gutter, but was cleaned up.  Water reached a storm outfall at coyote Creek. Staff found no impact to the water way or wildlife in the area. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Kept raw sewage sign for public safety 	Crew cleared the plug, removed grease from sanitary system, restored the flow, tested storm water inlet/manhole and outfall. Crew cleaned up street with two truck method, notified appropriate agencies, and document the event. 	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Post Spill CCTV	Submit discrepancy report to correct GIS.  Distribute grease flyers	Inspected sewer using CCTV to determine cause The plug segment has been added to cleaning cycle. Staff will distribute grease flyers to the surrounding area.	Reinspect w/ CCTV in three months 	10/02/2024 12:09	Staff reviewed the pic/video and information from the first responder.  Staff reviewed the grease that was removed from the plugged segment.  And CCTV result showed evidence of grease.  It was concluded that the spill was caused by the grease that was pulled out of the MH 1000344. 	N			Coyote Creek	Stream/Creek		Coyote Creek mainstem is an urban, northward flowing 64 miles river in California whose much longer headwater creeks originate in the Diablo Range near Morgan Hill. From here it flows north through San Jose where it receives several different tributaries. Coyote Creek serves as the eastern boundary of downtown San Jose and after coursing through San Jos�, it empties into south San Francisco Bay. 	No impact	Other (specify below)	Raw sewage signs posted 	Valley Water	0	N	N												
5F	5SSO11309	Active	Livingston City CS	Livingston City	896797	1.3	Certified	Tony Avina	Public Works Superintendent		04-OCT-24	04-OCT-24	Monthly Category 3 Spill	Walnut and Industial Av. 	09/25/2024 17:25	09/25/2024 17:35	09/25/2024 17:20				The downstream plug caused sewer to backup and spill from the manhole at the intersection oof Walnut and Industrial drive. 	37.3895	-120.71039	Manhole		none	180	The spill at the intersection of Walnut and Industrial drive went on to the street and down the gutter on industrial drive into a storm drain that goes to a storm water basin down stream of leak	Y	The storm drain drains into a a storm drain catch basin	180				180	Other (specify below)	percolation pond where sewage run off settled and drained	sewage was captured in the storm drainage pond		37.38618	-120.71115							09/25/2024 17:40	kick the bucket method	eyeball estimation of approximately 3.5 55-gallon drums knocked over  180 gallons	Debris-General		Manhole		Concrete		40	the impact was very small due to the fact that it was contained to one small area.	N	Cleaned Up (specify below)	all areas of spill were washed and chlorinated	after unclogged downstream blockage, all areas were washed down and chlorinated. 	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source		recently sent out flyer for FOG flyers to residents.		09/25/2024 11:00	A downstream clog in our sewer system caused the leak at the manhole opening.		none	09/27/2024 09:00														call OES when needed.	more routine inspections in that area.	more routine inspection in that area	none at this time	none	not at this time	staff checking that area more often	continue spill response activities	none	
5S	5SSO10993	Active	Manteca CS	Manteca City	896840	1.3	Certified	Derek perry	Collections supervisor		22-FEB-25	22-FEB-25	Monthly Category 3 Spill	Sagewood Dr	10/04/2024 12:37	10/04/2024 13:03	10/04/2024 12:00				Sanitary sewer man hole in the street. See attachment	37.81917	-121.21006	Gravity Mainline; Manhole			421	Storm drain system of neighborhood ending in storm pump station wet well. see attachment	Y	see attatchment	421				421	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		see attachment		37.81537	-121.20526							10/04/2024 14:19	Measurement of surface area and measurement of liquid in the storm pipes at manholes.	Estimation of start time arrived at by caller statement of when spill was noticed and last time spill site was seen to be dry. 	Pump Station Failure - Controls		Pump Station - Controls		Polyvinyl Chloride (PVC)		6	spill impacted a 300 sqft surface area of asphalt and entering a fully contained storm drainage system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Upon arrival, storm drain was sandbagged. Traced full man hole down stream of spilling man hole to full sewer wet pit. Determine plc was not working. Electrician was called and operation was restored. Cleaned surface area(asphalt, gutter and DI) with combo truck vac and pressure washed. Spill was contained in storm system and storm wet pit. Storm system was cleaned and wet pit vacuumed with comb truck on 10/7/24	Repaired Facilities or Replaced Defect		Check station daily (physically) to confirm operation.		10/07/2024 09:33	PLC malfunction was do to SCADA modification system wide which unexpectedly affected the programing of the lift station.		N/A	11/04/2024 16:00														N/A	N/A	N/A	None	Reset PLC. Installed new mini cass	N/A	No modifications. 	Placed Sand bags around Storm water Catch Basin. Tract down source of blockage/ reason for surcharged pipe. Had maintenance personnel reset failed PLC	N/A	
8	8SSO11418	Active	Hemet City CS	Hemet City	896851	1.2	Certified	Travis Holyoak	Water Wastewater Superintendent 		08-OCT-24	08-OCT-24	Monthly Category 3 Spill	Behind IN and Out 	10/03/2024 21:00	10/03/2024 21:15	10/03/2024 20:45				Spill was out of manhole located at 33.74563 Latitude and -117.00214 Longitude	33.74563	-117.00214	Manhole			950	Spill was out of manhole located at 33.74563 Latitude and -117.00214 Longitude, traveled south along curb and then west along curb and gutter.  	N						950	Paved Surface; Street/Curb and Gutter (2 3)		Dirt berm was put in at Latitude 33.74518 and Longitude -117.00642, to contain spill.  this was the farthest point west approx 1400 L.F of spill from manhole location.   Blockage was at Latitude 33. 74727 longitude -117.00375, resulting from Highway 74 road Improvement project under Caltrans jurisdiction. 	Y	33.74518	-117.00642	33.74727	-117.00375					10/04/2024 01:30	950 gallons was determined by utilizing the SSCSC Manhole Overflow Gauge	SSCSC Manhole Overflow Gauge	Debris from Construction		Manhole		Vitrified Clay		40	From location of spill traveled approx. 1400 L.F. to the west along curb.  Dirt berm was put in place to control flow and utilized a Vactor truck to clean up spill.  Vactor truck was able to keep up with flow until blockage was cleared.  Crews talked to the reporting party at CASA DEL SOL for any other clean up activities and items were addressed.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		installed dirt berm Latitude 33.74518 and Longitude -117.00642, utilized a vactor truck to clean up and wash down and contain all portions of the spill.  clean up dirt berm and taken to EMWD treatment facility. City task number #168936	Inspected Sewer Using CCTV to Determine Cause		We are working with Caltrans to uncover all manholes to inspect them as The Caltrans Highway 74 Improvement project has affected our Utilities		10/04/2024 08:00	Cause of spill was associated with the construction work being performed by Caltrans on Highway 74, was the false manhole cover were removed we were able to jet the line and clear the blockage.  Did not see anything certain that caused the blockage at the time.  flow was returned to normal.		none	10/04/2024 08:00														N/A	N/A	N/A	N/A	N/A	Not on the CIP list as it is not needed.	N/A	none, response was per SSMP and Spill Response	none	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	896883	1.2	Certified	John J. Hough	San Dist. Superintendent	08-OCT-24	18-OCT-24	18-OCT-24	Category 1 Spill	349931	10/05/2024 12:30	10/05/2024 13:20	10/05/2024 12:20				See Attached Spill Map with Photos	38.4056	-121.3668	Lateral Clean Out (Public)			84	See Attached Spill Map with Photos	Y	See Attached Spill Map with Photos.	0	0	See Attached Spill Map with Photos.	77	81	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See attached Spill Map with Photos.	Y	38.4056	-121.3668	38.4056	-121.3669	38.4019	-121.3656			10/05/2024 15:10	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Debris from Lateral		Lower Lateral		Vitrified Clay		74	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	*Notified City of Elk Grove Department of Public Works.	See Attached Description of Spill Event	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		SacSewer inspected the lower lateral with CCTV on October 5, 2024. Based on the findings, SacSewer will replace the lower lateral.	SacSewer inspected the lower lateral with CCTV on October 5, 2024. Lower lateral is schedule for replacement.	10/06/2024 00:00	See Attached Description of Spill Event	N			Unnamed tributary to Elk Grove Creek	Other (specify below)	Unnamed tributary to Elk Grove Creek	Spilled pooled at entry point of unnamed tributary by vegetation in waterway. Upstream and downstream of outfall was dry in waterway.	No observed impacts to aquatic life	Other (specify below)	No public access impacted.	N/A	0	N	N												
5S	5SSO10901	Active	City of Sacramento Utilities CS	Sacramento City	896682	2.1	Certified	Kevin Guerra	Superintendent		11-OCT-24	11-OCT-24	Monthly Category 3 Spill	2082 Railroad Dr. Sacramento, Ca. 95822	09/10/2024 11:30	09/10/2024 12:30	07/24/2024 00:01				The spill appearance point was located in a field downstream of a sewer sump station.	38.60304	-121.46909	Force Main			177	The spill appearance point was a valve box located in the middle of a field. The spill would seep out when the pump would kick on and receded back into the box when the pumps stopped, leaving a wet area. The spill contained itself.	N						177	Unpaved Surface		The spill would appear and recede back to where it came from it left a circular wet area behind in the soil. The destination and spread was the same as the appearance point.	Y	38.60304	-121.46909							09/11/2024 10:00	 We had seen the spill appear and recede when the sump station turned on and off. We took measurements of the area that the spill would reach before it returned back into the sewer system.  We then excavated in the area nearest the appearance point until we found dry soil. We took these measurements and entered them into a calculator that had been built to estimate a spill trapped in soil.  This calculator has different calculations for different types of soil, we used the calculation for Clay.	We reviewed data from multiple sources on the Sump Station, and found nothing that would tell us when the spill started. We did have a picture of the spill area on July 24,2024 and the spill area was dry and the vegetation was dead. This was the only thing we could use that we could positively say the spill had not started. For the end time we used when the repairs had been made and the pumps were turned back on.	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure		Air Relief Valve (ARV)/ Blow-Off Valve (BOV)		Galvanized Steel		110	The spill had no impact to the environment nor the publics service.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Tested Force main and air Relief valve after repairs were made. Portion of spill contained in the soil was removed and taken to the landfill.	The spill had been absorbed by the soil in the field. We removed the soil and took it to the landfill and replaced with top soil.	Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect		We are adding this and other valves on force mains to a monthly inspection route, These valves will also be maintained and serviced on a regular cycle as well.		10/10/2024 13:30	We found that the ARV valve in the field had Galvanized steel piping that  had rotted and had begun to fail in different areas. We replaced all of the fittings, the piping, and the valve, to correct this spill cause.		N/A	09/11/2024 13:01														N/A	We are developing and writing an SOP for a forced main maintenance program.	N/A	Yes this is on a CIP list and a priority project.	N/A	The sump station and forced main are on a CIP list due to be replaced and updated within this fiscal year.	N/A	N/A	N/A	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	896943	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2		14-OCT-24	14-OCT-24	Monthly Category 3 Spill	6125 Pinewood Road, Oakland Ca	10/04/2024 18:02	10/04/2024 19:10	10/04/2024 17:35				Manhole was overflowing on an easement and flowing down on a hillside behind the property, the sewage overflowed on unpaved surface, and it soaked into the soil. 	37.84422	-122.22083	Manhole			274	Manhole was overflowing on an easement and flowing down on a hillside behind the property, the sewage overflowed on unpaved surface, and it soaked into the soil.	N						0	Unpaved Surface		Manhole was overflowing on an easement and flowing down on a hillside behind the property, the sewage overflowed on unpaved surface, and it soaked into the soil.										10/04/2024 19:24	1  pick-hole x 2  height = 2.51 GPM 2.51 GPM x 109 minutes = 274 gallons	Start time was based on eyewitness account. The end time was based on responding sewer crew restoring the flow in the mainline.	Root Intrusion	Inside the manhole	Manhole		Other (specify below)	HDPE	22	Manhole was overflowing on an easement and flowing down on a hillside behind the property, the sewage overflowed on unpaved surface, and it soaked into the soil.	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow	Removed roots from inside the manhole, removed and cleaned up solids from the spill, and disinfected affected areas from the spill.	Removed roots from inside the manhole, removed and cleaned up solids from the spill, and disinfected affected areas from the spill.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		CCTV report W.O. # 1562053 was completed on 10/9/24. Mainline has been added to 6-month hydro high frequency maintenance program, W. O. # 1562054. Manhole has been added to 6-month high frequency maintenance program for root removal, W.O. # 1563711.		10/09/2024 13:17	CCTV found the HDPE mainline to be in good condition without root intrusion in it. The first responding sewer crew found root intrusion blockage in the manhole. Mainline has been added to 6-month hydro high frequency maintenance program, W. O. # 1562054. Manhole has been added to 6-month high frequency maintenance program for root removal, W.O. # 1563711 to prevent any further overflows.		N/A	10/09/2024 13:17														N/A	Mainline has been added to 6-month hydro high frequency maintenance program, W. O. # 1562054. Manhole has been added to 6-month high frequency maintenance program for root removal, W.O. # 1563711.	Mainline has been added to 6-month hydro high frequency maintenance program, W. O. # 1562054. Manhole has been added to 6-month high frequency maintenance program for root removal, W.O. # 1563711.	N/A	CCTV report W.O. # 1562053 was completed on 10/9/24. 	N/A	Mainline has been added to 6-month hydro high frequency maintenance program, W. O. # 1562054. Manhole has been added to 6-month high frequency maintenance program for root removal, W.O. # 1563711.	Mainline has been added to 6-month hydro high frequency maintenance program, W. O. # 1562054. Manhole has been added to 6-month high frequency maintenance program for root removal, W.O. # 1563711.	N/A	
2	2SSO10105	Active	Central Contra Costa Sd CS	Central Contra Costa Sanitary District	896945	1.2	Amended	Paul Seitz	CSO Division Manager	14-OCT-24	22-OCT-24	22-OCT-24	Category 1 Spill	94 Tarry Ln. Orinda, CA	10/10/2024 08:54	10/10/2024 08:50	10/05/2024 09:00	10/10/2024 09:46	24-5751		Spill came from manhole #23 located in remote area of backyard of above address. Homeowner doesn't visit the area often so was not aware of the spill until our crew found it while looking for access for another scheduled cleaning job.	37.91381	122.1918	Manhole			10008	Spill exited manhole traveled approximately ten feet over an unpaved surface (soil) then down a steep embankment directly entering a small creek which flows through an Orinda residential area later combining with Lauterwausser Creek where we set up pumps to collect the spill in it's entirety and returned it to our sanitary system.	N				Se attached photos.	2541	2541	Other (specify below)	Flowing creek	Spill discharged from manhole behind 94 Tarry lane and travelled approximately 10' over an unpaved surface then down a steep embankment directly entering a small creek which flows through an Orinda residential area later combining with Lauterwausser Creek where we set up pumps to collect the spill in it's entirety and returned it to our sanitary system.	Y	37.91379	-122.19148	37.90805	-122.18894	37.90621	-122.18803	37.90402	-122.18969	10/10/2024 09:26	See attached calculation sheet.	See attached assumption sheet.	Debris-Rags; Other (specify below); Root Intrusion	Gravel	Gravity Mainline		Other (specify below)	Concrete lined and coated steel.	73	Based on an inspection conducted by a third party bioligist, there were no negative impact on the creek or it's aquatic life.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		We tested the creek to determine the extent of the spill and set up downstream of that area. We pumped and flushed the creek with fresh water until a clean test was achieved.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Reviewed CCTV footage in our bi-weekly Operations meeting. Based on that footage we increased the cleaning frequency. 	N/A	10/10/2024 21:55	From reviewing our CCTV footage we found a sag in our mainline. 	N			Lauterwausser Creek	Stream/Creek		Stream	None observed	Other (specify below)	None. The creek is inaccessible to the public.	N/A	0	N	Y	Upstream, site, downstream.	CBOD, dissolved oxygen, Ph, total residual chlorine, ammonia, COD, enterococcus, total/fecal coliform, e-coli										
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	896953	1.1	Certified	Kent Vian	Asst. Deputy Director		03-DEC-24	03-DEC-24	Monthly Category 3 Spill	NOT-40201163520 SMYTHE AVE.	10/13/2024 09:01	10/13/2024 09:33	10/13/2024 09:00				THE SPILL ORIGINATED FROM MH#346 COORDINATES 32.55888 -117.04895, TRAVELING NORTH INTO THE STREET ONTO THE CURB & ENTERED THE STORM DRAIN. THE SECOND APPEARANCE POINT WAS LATERAL EQ#10375219, GPS COORDINATES 32.55608-117.04802.	32.55608	-117.04802	Gravity Mainline; Inside Building or Structure; Manhole; Upper Lateral (Private)	N/A	LATERAL	825	THE SPILL BOUNDARIES AT THE MANHOLE TRAVEL DOWN THE STREET TO THE CURB AND ENTER THE STORM DRAIN. THE LATERAL TRAVEL INTO TWO SEPARATE PROPERTY.	Y	THE STORM DRAIN SYSTEM WITH THE SPILL TRAVELS IS A 42  IN DIAMETER CONCRETE PIPE.	760				760	Building or Structure; Drainage Conveyance System; Street/Curb and Gutter (2 3)	N/A	THE SPILL TRAVELED DOWN THE STREET, CURB, AND STORM DRAIN. GPS COORDINATES ARE 32.55608-117.04802.	Y	32.55885	-117.04894							10/13/2024 11:11	THE ESTIMATION IS CALCULATED BY VISUAL METHOD.	THE SPILL START TIME IS WHEN THE DISPATCH RECEIVES THE CALL FROM THE CONSUMER REPORTING THE SPILL.	Debris from Construction; Debris-wipes/Non-disposables; Vandalism (specify below)	N/A	Gravity Mainline; Lower Lateral; Manhole	N/A	Vitrified Clay	N/A	50	THE SPILL IMPACT WAS THE STREET, CURB AND STORM DRAIN.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	N/A	CREWS RESPONDED, INVESTIGATED, CONTAINED, RELIVED, AND TRACKED DOWN THE FINAL DESTINATION; CALLED LUFT & TURLEY, THE AREA ENGINEER, AND WASHDOWN AREA.	Inspected Sewer Using CCTV to Determine Cause	N/A	Management reviewed findings and notified contractor working in the area that caused damage to manhole. 		10/13/2024 16:30	THE CAUSE OF THE SPILL WAS VANDALISM CONTRACTOR HIT MANHOLE PUSHING DEBRIS INTO SYSTEM.		None	10/14/2024 11:36														N/A	None	None 	Yes, Under Cip# B2114 Trenchless 	None	Yes, Start date 6/29/2026	None	None at this time	None	
2	2SSO10154	Active	Mill Valley City CS	Mill Valley City	896961	1.2	Certified	Andrew Poster	Director of Public Works	16-OCT-24	30-OCT-24	30-OCT-24	Category 1 Spill	W Blithedale Ave @ Hillside Ave	10/12/2024 17:08	10/12/2024 19:15	10/12/2024 17:00	10/12/2024 17:06	24-5791		The spill occurred from the manhole on the Southern Travel lane of W. Blithedale Avenue at the intersection with Hillside Avenue.	37.909194	-122.547636	Manhole			1539	Sewer overflowed from manhole and travelled approximately 6' to a catch basin inlet and then to the Creek (Arroyo Corte Madera del Presidio). 	Y	Catch basin entering a 18  diameter storm drain line with an outfall in the creek. 	0	0	Arroyo Corte Madera del Presidio	1539	0	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface		Spill came out of Manhole J3 in intersection of Hillside Ave and W. Blithedale Ave.  It spilled over pavement for approximately 6-8' before entering a catch basin with flowed approximately 40' to an outfall directly in the Creek Arroyo Corte Madera del Presidio.	Y	37.9092	-122.54763	37.90913	-122.54795					10/12/2024 17:42	San Diego and  Hydrology and Its Applications  and comparing to photographs of the site at various times the spill was ongoing.  San Diego led to an estimated volume of between 5GPM and 25GPM, yielding an average of 15GPM; the  Hydrology and Its Applications methods measured <.5  out of the rim leading to an estimate of <4GPM.  The averaged total was 9.5 GPM which was multipled by 162 minutes, the estimated spill duration. 	The fire department was called at 5:05 pm.  Given this is a high traffic road, we estimate the spill started a few minutes prior.  The end time was the confirmed time our operator restored flow.	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline; Lower Lateral		Other (specify below); Vitrified Clay	The segment was HDPE lined VC pipe. 	8	The sewage spilled out of the manhole, travelled about 6-8' across pavement and into a catch basin.  From there it gravity drained to the creek.  Due to light rain and the slope of the drainage pipe, no material was recoverable.  	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow	We swept the pavement and catch basin and disposed of the debris generated.  We also placed signage at the waterway consistent with Marin County Health Department Guidance. 	We restored flow using a rodder. We swept the pavement and catch basin and disposed of the debris generated.  We also placed signage at the waterway consistent with Marin County Health Department Guidance.  We notified NRC and CalOES.  We hydrojetted the line and CCTV'd the line exposing the primary cause of the blockage being root intrusion caused by a failed lateral. We notified the property owner who was responsible for the lateral with roots growing out of it. 	Other (specify below); Post Spill CCTV	We sent a Notice to Repair to the property owner whose lateral was responsible for roots obstructing the main.	We sent a Notice to Repair to the property owner whose lateral was responsible for roots obstructing the main.  We used root cutting heads on a rodder truck to remove roots in the main. 	Property owner has 60 days to correct their line.  Work related to the main is complete	10/15/2024 15:00	Upon opening the manhole, evidence of FOG was observed in rings in the manhole, we believe this was a contributing factor.  Upon restoring flow using the rodder, we removed wipes from the blockage, we believe this contributed to the blockage.  Upon CCTV'ing the segment for post Spill investigation, we found a large root ball coming from a private lateral.  We believe this was the primary cause of the spill. 	N		10/15/2024 15:00	Arroyo Corte Madera del Presidio	Stream/Creek		Local year-round creek which drains in Pickleweed Inlet/Richardson Bay	none observed.	Other (specify below)	Warning Sign  Water Contact May Cause Illness  per city's SSMP and County Health 	City of Mill Valley under direction of Marin County Health Officer	0	N	N												
2	2SSO10115	Active	South San Francisco City CS	South San Francisco City	896981	1.3	Certified	David A. Bockhaus	Deputy Director of Public Works	16-OCT-24	30-OCT-24	30-OCT-24	Category 1 Spill	618 West Orange Ave. 	09/09/2024 17:09	09/09/2024 17:45	09/09/2024 17:05			30-OCT-24	The manhole (wH1616) at (37.64954 N and 37.64954 W) spilled at approx. 5:05 pm on Monday 9-9-24. A second spill occurred at approx. 5:49 pm 9-9-24. The spill flowed east along the gutter on the south side West Orange Ave. entering the drainage conveyance system at 119' away (sp2520) at the corner of West Orange Ave and Southwood Center (37.64970 N and 122.43114 W) The spill seeped up around the manhole (wH1616) and flowed to the catch basin (sP2520) staying in the 18  gutter. The spill was flushed with 3x (60 gallons) amount of water, however no amount of the spill was recovered.	37.64954	122.43153	Gravity Mainline			27	The spill overflowed out of the manhole (wH1616) located in front of 618 West Orange Ave. and flowed down the street into the gutter. The spill then flowed along the gutter approx. 119' until it reached the storm drain located at the corner of West Orange Ave and Southwood Center. 	Y	The drainage conveyance system is comprised of primarily 18  concrete pipe in the area of where the spill occurred that transports the storm water along the storm mainline into the Colma Creek canal.	0	27	Spill did impact waters of the state or surface waters. Based on our investigation, the spill did reach an open culvert on the corner of S. Spruce and the Centennial Trail but we do not believe it ever reached the Colma Creek.	27	0	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		The manhole (wH1616) at (37.64954 N and 37.64954 W) spilled at approx. 5:05 pm on Monday 9-9-24. A second spill occurred at approx. 5:49 pm 9-9-24. The spill flowed east along the gutter on the south side West Orange Ave. entering the drainage conveyance system at 119' away (sp2520) at the corner of West Orange Ave and Southwood Center (37.64970 N and 122.43114 W) The spill seeped up around the manhole (wH1616) and flowed to the catch basin (sP2520) staying in the 18  gutter. The spill was flushed with 3x (60 gallons) amount of water, however no amount of the spill was recovered.	Y	37.64954	122.43153							09/09/2024 19:47	Duration and flow rate estimation method as well as the volume estimation computation formulas were used to calculate the spill.	Duration and flow rate estimation method as well as the volume estimation computation formulas were used to calculate the spill and to estimate the start and end time.	Debris-General; Debris-Rags		Gravity Mainline		Vitrified Clay		70	The spill overflowed out of the manhole (wH1616) located in front of 618 West Orange Ave. and flowed down the street into the gutter. The spill then flowed along the gutter approx. 119' until it reached the storm drain located at the corner of West Orange Ave and Southwood Center. 	N	Cleaned Up (specify below); Restored Flow		Plugged sewer main was jetted with a flusher truck to restore the flow while a vaccon was set up and the spill appearance point to attempt to recover the spill. After the plug was cleared the spill area was cleaned and disinfected.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Preventative maintenance schedule was adjusted and the sewer line that was plugged was inspected with a CCTV camera.	Ongoing training for the near future	09/09/2024 19:47	The sewer line that was plugged and caused the plug was investigated by CCTV. The findings of the investigation were that the line had large grease deposits as well as a failing liner that was found in a manhole in a backyard.	N			Colma Creek	Stream/Creek		Colma creek that is walled with concrete	No impact observed. We do not believe the spill reached the water ways	Other (specify below)	No public access closure	No Closure 	0	N	N												
4	4SSO10430	Active	Santa Fe Springs City CS	Santa Fe Springs City	897003	1.2	Certified	Eric Liu	Civil Engineer	17-OCT-24	24-OCT-24	24-OCT-24	Category 1 Spill	2080-0014 (12907 Imperial Highway, Santa Fe Springs)	10/11/2024 14:50	10/11/2024 15:20	10/11/2024 14:20				CSMD Map Sheet No. 2080 Overflowing Manhole No. 14 MMS No. 9134404	33.91728	118.0575	Manhole			300	Sewage discharge from Manhole No. 14 into the street and a storm drain. 	Y	Sewage discharge from Manhole No. 14 into the storm drain at 12827 Imperial Highway.	0	100	Sewage discharge from Manhole No. 14 into the storm drain at 12827 Imperial Highway, which leads to BI 1111 - Line B, BI 1111 Hud 2 - Line A, Coyote Creek - North Fork, and Coyote Creek. The major watershed is the San Gabriel River. 	100	200	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Sewage discharge from Manhole No. 14 into street and storm drain at 12827 Imperial Highway, which leads to BI 1111 - Line B, BI 1111 Hud 2 - Line A, Coyote Creek - North Fork, and Coyote Creek. The major watershed is the San Gabriel River. 	Y	33.91726	118.0587							10/11/2024 15:30	CWEA SSCSC Manhole Gauge	The start time is obtained from the reporting party, and the end time is determined by when the crew clears the obstruction, and the overflow stops.	Root Intrusion		Gravity Mainline		Vitrified Clay		66	Spill occurred at the MH near 12907 Imperial Highway went into the street curb/gutter and portion of it entered into storm drain at 12827 Imperial Highway.	N	Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Arrived at 12907 Imperial Highway and contained sewage escaping from manhole 14. Absorbent socks were placed in front of the storm drain at 12827 Imperial Highway to prevent further contamination. Used hydro equipment to break down a heavy root stoppage between manholes 13 and 14. Approximately 300 gallons escaped from manhole 14, with 100 gallons entering the storm drain. Vacuumed 200 gallons of contained sewage and returned it to the system. All required agencies were notified of the findings and results. 	Other (specify below)	We will inspect sewer using CCTV to determine if further actions are needed. 	We will inspect sewer using CCTV to determine if further actions are needed. 	We will inspect sewer using CCTV to determine if further actions are needed. 	10/11/2024 16:20	We will inspect sewer using CCTV to determine if further actions are needed.	Y	We will inspect sewer using CCTV to determine if further actions are needed. 	12/11/2024 11:42	Coyote Creek / San Gabriel River	Other (specify below); River; Stream/Creek	Creek	Coyote Creek - North Fork, and Coyote Creek. The major watershed is the San Gabriel River. 	No impacts. 	Other (specify below)	No impact.	N/A	0	N	N											We will inspect sewer using CCTV to determine if further actions are needed. 	
2	2SSO10216	Active	West County WW District CS	West County Wastewater District	897006	1.3	Certified	Gordon times	CSO Manager		28-OCT-24	28-OCT-24	Category 1 Spill	2840 Shane Drive Richmond Ca 9486  Manhole # 201304	10/14/2024 02:55	10/14/2024 03:20	10/14/2024 02:25	10/14/2024 05:00	24-5810		9 Photos and 1 video	37.97063	-122.33316	Gravity Mainline; Manhole			156	Sewage discharging from manhole in middle of street and running into curb & gutter approximately 600' to drain inlet at corner of Shane Drive & Canterbury Drive.	Y	Underground Storm drain system.	20	156	Unknown	0	20	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		Sewage discharged from street manhole onto paved street to the curb & gutter and approximately 600' into Storm inlet with the final destination being in the conveyance system. Estimated amount being 156 gallons. 	Y	37.97063	-122.33316							10/14/2024 15:25	Counted amount of house laterals tied in above spill point and multiplied times average flow per unit at time of day the spill occurred .	Counted amount of house laterals tied in above spill point and multiplied times average flow per unit at time of day the spill occurred .	Root Intrusion		Gravity Mainline; Manhole		Vitrified Clay		62	Sewage in street , gutter and storm drain . No obvious impact to environment.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Placed sandbags in gutter blocking storm drain inlet. Placed vacuum truck in front of sandbags to recover sewage in gutter. Restored flow . Washed street and gutters with hydro truck toward vacuum truck . Vacuumed Approximately 20 gallons of sewage from catch basin . All water used to wash down was recovered by vacuum truck.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer; Post Spill CCTV		Clean the pipe CCTV inspection Increase Maintenance Frequency	All we're completed on 10/15/24	10/14/2024 14:36	Follow up CCTV inspection . Findings of CCTV inspection was root intrusion in joints of 6  vitrified clay pipe .	N			Rheem Creek	Stream/Creek		 Small creek running through residential neighborhood.	None	Other (specify below)	None	N/A	0	N	N												
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	897019	1.2	Certified	Daniel Whitlock	Manager		21-NOV-24	21-NOV-24	Monthly Category 3 Spill	65 Alpha St.	10/11/2024 12:18	10/11/2024 12:45	10/11/2024 12:00				Spill originated in P-11964 and spilled into backyard of 65 Alpha St.	37.7149	122.40308	Gravity Mainline; Manhole			50	Spill was contained to backyard of 65 Alpha St.	N						0	Other (specify below); Unpaved Surface	Concrete and dirt	Backyard of 65 Alpha st. Spill contained to backyard.	Y	37.7159	122.40308							10/11/2024 13:30	Eye-ball method. Spill was not actively occurring when maintenance worker arrived. Looked to be about 10 5-gallon buckets that traveled through the dirt.	10, 5-gallon buckets worth of spill.	Other (specify below)	Pipe structural problem/failure - broken pipe.	Gravity Mainline		Vitrified Clay		85	Spill contained to backyard of 65 Alpha st and was contained and cleaned up.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow		Relieved main sewer P-119614 from manhole N-32075. Spill area was sanitized.	Other (specify below)	N/A	WO #8596151 to CCTV completed 10/22/2024 WO #8600970 to repair pipe completed 10/26/2024		10/17/2024 14:00	Pipe was broken due to age.		None	10/17/2024 14:00														N/A	N/A	N/A	Yes. P-119614  WO #8600970 for repair completed 10/26/2024.	P-119614	N/A	N/A	N/A	None	
4	4SSO10497	Active	Triunfo Sanitation District CS	Triunfo Sanitation District	897024	1.1	Certified	Dave Rydman	Operations Manager		17-OCT-24	17-OCT-24	Monthly Category 3 Spill	Manhole T5-505860 in private alley between Vons and Gelsons off of Village Glen	10/16/2024 17:55	10/16/2024 18:10	10/16/2024 17:20				The spill originated from a sewer manhole located in an easement on a privately owned parking lot serving multiple FSEs, businesses, and box stores.	34.15188	-118.82466	Manhole			900	The overflow from the manhole spilled into a storm drain catch basin within 10 feet of the manhole.	Y	City of Thousand Oaks storm drain	900				900	Drainage Conveyance System		The spill from the manhole flowed into a catch basin near the sewer manhole.  The spill was contained in the storm drain pipe and catch basins located downstream.	Y	34.15183	-118.82461	34.15124	-118.82479	34.15074	-118.8253	34.15066	-118.82511	10/16/2024 18:50	Visual observation estimating a flow of 10 gpm out of the pick hole.  Spill started 5:20p and continued until 6:50p.  The volume was contained in the downstream storm drain and removed from this storm drain at the same time the storm drain line was cleaned with a Vactor truck	City of San Diego Spill Calculation and Estimation Methods	Debris-Rags; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		54	Spill was contained in the downstream storm drain	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Spill was fully removed from the storm drain by a Vactor truck.  The storm drain was cleaned by hydro jetting.  The ground surface where the spill occurred was also cleaned with the Vactor truck.	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source	added location to list of known Hot Spots for regular cleaning	TWSD will inform the property owner as part of a follow-up FOG inspection of the cause of the spill.  TWSD may also fine property owner for TWSD's cost to respond to and clean up the spill.		10/17/2024 11:30	The spill was caused by a combination of wipes, rags and grease that formed a blockage of the sewer main that exclusively serves a commercial area with multiple FSEs and businesses all leasing space from a single owner.		Will meet with property owner/manager to reenforce their responsibility for appropriate use of the public sewer system.  This will begin immediately, and we expect to have the issue fully resolved with the property owner by the end of November.	11/30/2024 12:00														Not applicable	TWSD will include the location of the blockage on its Hot Spot list and increase the frequency of cleaning this line.	TWSD will include the location of the blockage on its Hot Spot list and increase the frequency of cleaning this line.	None	None	None	Sewer main segment where blockage occurred added to Hot Spots list	First responder will take sand bags to spill location to use to plug storm drain catch basins to contain the spill in a smaller area.	Will meet with property owner/manager to reenforce their responsibility for appropriate use of the public sewer system.  This will begin immediately, and we expect to have the issue fully resolved with the property owner by the end of November.	
8	8SSO10620	Active	EVMWD Regional Plant CS	Elsinore Valley Municipal Water District	897026	1.2	Certified	Jose Garcia	Collections System Worker III	17-OCT-24	23-OCT-24	23-OCT-24	Category 1 Spill	Village Pkwy	10/16/2024 15:54	10/16/2024 16:15	10/16/2024 15:24				Sewage coming out of manhole	33.65039	-117.30277	Gravity Mainline			360	See Attachment 	Y	Into the storm drain 	10	340	See Attachment 	360	20	Drainage Conveyance System; Street/Curb and Gutter (2 3)		Street curb and gutter	Y	33.6504	-117.30303							10/16/2024 16:42	Visual Calculation  	Based on GPM and Time Duration 	Fats, Oil and Grease (FOG)		Gravity Mainline		Polyvinyl Chloride (PVC)		11	Storm drain	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Lysol solution was used on public streets and curb and gutter. Flow was restored. With final clean up and vacuumed. 	Adjusted Schedule/Method of Preventive Maintenance; Post Spill CCTV		Recleaned gravity main and adjusted schedule of maintenance.	N/A	10/16/2024 18:25	After Investigation the cause of blockage was due to (FOG)	N		10/17/2024 09:20	Storm drain 	Other (specify below); Wetland	Golf course 	Golf course pond.	None 	Other (specify below)		No closure needed gold course closed 	0	N	N												
5F	5SSO11202	Active	City of Fresno CS	County of Fresno	897034	1.2	Certified	Arturo Alvarez	Wastewater Manager, Certified		28-OCT-24	28-OCT-24	Monthly Category 3 Spill	Roeding Park (2452-02)	09/26/2024 13:03	09/26/2024 13:03	09/26/2024 07:15				The spill originated from MH 2452-02, located in a paved parking spot.	36.75462	-119.82111	Manhole	n/a	n/a	77	The spill area was contained to street/curb & gutter, and a private catch basin drain.	N	n/a	0				77	Other (specify below); Paved Surface; Street/Curb and Gutter (2 3)	Private catch basin drain	The affected spill area included a paved parking area, street/curb & gutter, and a private catch basin drain at the curb. This private catch basin drain on the south side of the street connects only to a private catch basin drain on the north side of the street, and vice versa; neither private catch basin drain travels beyond this. 	Y	36.75452	-119.821	36.75452	-119.82115					09/26/2024 14:25	The spill volume estimate was determined by calculating the volume of the total spill area.	A zoo employee that parks near this manhole reported arriving at work at 07:00 and the manhole was not overflowing; therefore, the estimated start time is approximately 07:15.  The spill end time was determined by the time the blockage was broken.	Debris-Rags	n/a	Gravity Mainline	n/a	Vitrified Clay	n/a	104	There is no known lasting impact due to this spill event.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	n/a	The area was secured and a dirt perimeter created around the lid of MH 2452-02 to mitigate further spill. Dirt barriers created at the west and east ends of the curb/gutter to prevent the spill from traveling any further. The mainline blockage was cleared, and the affected area was cleaned, sanitized, and vacuumed.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause	n/a	Increased cleaning frequency for mainline 2452-02-2452-03, max. 3-year interval.		09/26/2024 15:45	Arrived at Roeding Park ~13:00 to do Class B exam prep with new CSM Technician. Saw an overflowing MH; created dirt perimeter around the MH to mitigate spill. Contacted support staff & combo, and went to locate the downstream MHs behind zoo gates. With zoo staff's help, located MHs 2452-03 (partially buried) & 2452-04, which was down and flowing; blockage determined to be between 2452-02 & 2452-03. Set up at 2452-04; flushed upstream past 2452-03, broke the blockage at 14:25, ~30' upstream. Pulled back excessive rags. Documented the spill area & MHs; took measurements. Upstream MH 2452-51 found to be a lamphole (LH) located ~340' upstream of 2452-02. Sewer node upstream of 2452-51 found to be park bathroom cleanout. Combo/support staff began cleanup of the spill area, including the MH, curb & gutter, and the private catch basin drain on the south side of the street. Private catch basin drains (2) and mainline cleaned 09-27-24 out of an abundance of caution.		n/a	10/09/2024 16:30														n/a	Increased cleaning frequency for mainline 2452-02-2452-03, max. 3-year interval.	Increased cleaning frequency for mainline 2452-02-2452-03, max. 3-year interval.	n/a	09-27-2024: inspected affected mainline 2452-02-2452-03 as well as 2452-51-2452-02, 2452-03-2452-04, and 2452-04-2452-06.	n/a	Mainline 2452-02-2452-03 added to root control program and cut for roots 10-09-2024; scheduled to be foamed after 11-09-2024. Root control program will increase the cleaning frequency to max. 3-year interval.	n/a	n/a	
5F	5SSO11202	Historical	City of Fresno CS	County of Fresno	897034	1.2	Certified	Arturo Alvarez	Wastewater Manager, Certified		28-OCT-24	28-OCT-24	Monthly Category 3 Spill	Roeding Park (2452-02)	09/26/2024 13:03	09/26/2024 13:03	09/26/2024 07:15				The spill originated from MH 2452-02, located in a paved parking spot.	36.75462	-119.82111	Manhole	n/a	n/a	77	The spill area was contained to street/curb & gutter, and a private catch basin drain.	N	n/a	0				77	Other (specify below); Paved Surface; Street/Curb and Gutter (2 3)	Private catch basin drain	The affected spill area included a paved parking area, street/curb & gutter, and a private catch basin drain at the curb. This private catch basin drain on the south side of the street connects only to a private catch basin drain on the north side of the street, and vice versa; neither private catch basin drain travels beyond this. 	Y	36.75452	-119.821	36.75452	-119.82115					09/26/2024 14:25	The spill volume estimate was determined by calculating the volume of the total spill area.	A zoo employee that parks near this manhole reported arriving at work at 07:00 and the manhole was not overflowing; therefore, the estimated start time is approximately 07:15.  The spill end time was determined by the time the blockage was broken.	Debris-Rags	n/a	Gravity Mainline	n/a	Vitrified Clay	n/a	104	There is no known lasting impact due to this spill event.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	n/a	The area was secured and a dirt perimeter created around the lid of MH 2452-02 to mitigate further spill. Dirt barriers created at the west and east ends of the curb/gutter to prevent the spill from traveling any further. The mainline blockage was cleared, and the affected area was cleaned, sanitized, and vacuumed.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause	n/a	Increased cleaning frequency for mainline 2452-02-2452-03, max. 3-year interval.		09/26/2024 15:45	Arrived at Roeding Park ~13:00 to do Class B exam prep with new CSM Technician. Saw an overflowing MH; created dirt perimeter around the MH to mitigate spill. Contacted support staff & combo, and went to locate the downstream MHs behind zoo gates. With zoo staff's help, located MHs 2452-03 (partially buried) & 2452-04, which was down and flowing; blockage determined to be between 2452-02 & 2452-03. Set up at 2452-04; flushed upstream past 2452-03, broke the blockage at 14:25, ~30' upstream. Pulled back excessive rags. Documented the spill area & MHs; took measurements. Upstream MH 2452-51 found to be a lamphole (LH) located ~340' upstream of 2452-02. Sewer node upstream of 2452-51 found to be park bathroom cleanout. Combo/support staff began cleanup of the spill area, including the MH, curb & gutter, and the private catch basin drain on the south side of the street. Private catch basin drains (2) and mainline cleaned 09-27-24 out of an abundance of caution.		n/a	10/09/2024 16:30														n/a	Increased cleaning frequency for mainline 2452-02-2452-03, max. 3-year interval.	Increased cleaning frequency for mainline 2452-02-2452-03, max. 3-year interval.	n/a	09-27-2024: inspected affected mainline 2452-02-2452-03 as well as 2452-51-2452-02, 2452-03-2452-04, and 2452-04-2452-06.	n/a	Mainline 2452-02-2452-03 added to root control program and cut for roots 10-09-2024; scheduled to be foamed after 11-09-2024. Root control program will increase the cleaning frequency to max. 3-year interval.	n/a	n/a	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	897040	1.2	Certified	Kent Vian	Asst. Deputy Director	18-OCT-24	24-OCT-24	24-OCT-24	Category 2 Spill	NOT# 40201164514 5815 CAMINITO DEL ESTIO	10/16/2024 09:36	10/16/2024 10:32	10/16/2024 09:35	10/16/2024 13:26	24-5858		THE SPILL ORIGINATED FROM A MANHOLE LOCATED IN VAN NUYS CANYON, THE CLOSEST ADDRESS IS 5815 CAMINITO DEL ESTIO.	32.82117	-117.25194	Manhole	N/A	NONE	1500	THE SPILL TRAVELED SOUTH AND SETTLED INTO THE CANYON, THE CLOSET ADDRESS 5673 SOLIDAGO.	N	NA	0	0			0	Unpaved Surface	NA	THE SPILL TRAVELED SOUTH AND SETTLED INTO THE CANYON, THE CLOSET ADDRESS 5673 CAMINITO SOLIDAGO.	Y	32.81888	-117.25288							10/16/2024 10:35	SPILL VOLUME ESTIMATIONS WERE CALCULATED USING THE VISUAL CALCULATED METHOD.	THE SPILL START TIME WAS ASSUMED BY WHEN THE CONSUMER REPORTED SEEING THE OVERFLOW TO DISPATCH AND THE END TIME WAS WHEN CREWS VISUALLY CONFIRMED SPILL STOPPED.	Root Intrusion	NA	Manhole	NA	Concrete	NA	0	THE IMPACTS OF THE SPILL WERE TO VAN NUYS CANYON.	N	Cleaned Up (specify below); Restored Flow	CREWS CLEANED UP DEBRIS AROUND THE MANHOLE.	CREWS TRAPPED IN THE DOWNSTREAM MH AND BACKFLUSHED TO RELIEVE THE STOPPAGE.	Post Spill CCTV	NA	AFTER CCTV REVIEW OF ASSEST NO FREQUENCY CHANGE NEEDED CURENTLY ON 12 MOUTH.  	NONE	10/16/2024 16:30	A ROOT TAIL WAS DISLODGED FROM EQ# 10135661 WHILE CLEANING AND SETTLED INTO THE DOWNSTREAM MH, CAUSING THE BLOCKAGE AND SPILL.	N	NONE											N												NONE	
8	8SSO10620	Active	EVMWD Regional Plant CS	Elsinore Valley Municipal Water District	897041	1.3	Certified	Alex Ramirez	WW collections worker lll		23-OCT-24	23-OCT-24	Monthly Category 3 Spill	Palamar st 	10/17/2024 10:34	10/17/2024 11:05	10/17/2024 10:19				Spill coming from manhole in middle of Street of Palamar St.	33.58013	-117.24214	Manhole	N/A	N/A	744	See attachments	N	N/A					350	Unpaved Surface		Spill went into empty dirt field	Y	33.58057	-117.24214							10/18/2024 00:04	Spill calculations: The spill was estimated at 744 gallons using the Sewer Spill Estimation Guide from the State Water Resources Control Board website. The estimation was based on the 'Pick and Vent Hole Estimation Chart 1-inch vent hole was used for the calculation, where 4 inches of water height equals 7.08 GPM (gallons per minute). Multiplying by 1hour 45min(105min).  This results in approximately 743.4 gallons, rounding up to 744 gallons	Time of arrival and time of cleared blockage and accounted extra time not being onsite.	Other (specify below)	plugged mainline with sand bags by contractor	Manhole		Other (specify below)	N/A	38	Spill went into empty dirt field 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Located the manhole to begin jetting. Jetted the sewer main and discovered sandbags tied off to manhole MH-4868. Construction is currently underway in the area, and it appears that the sandbags are related to this project. Cleared the sewer mains, disinfected the area, and completed the cleanup. Recovered standing water from the field as part of the process.	Other (specify below)	Will contact contractors that were working on manhole	Cleared the sewer mains, disinfected the area, and completed the cleanup. Recovered standing water from the field as part of the process.		10/18/2024 03:20	Contractors plugged sewer mainline to work in manhole and did not remove sandbag plug and backed up the system		None	10/18/2024 10:28														N/A	N/A	N/A	N/A	Removed sandbag plugs 	N/A	N/A	N/A	None	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	896266	2.1	Certified	Kent Vian	Asst. Deputy Director		18-OCT-24	18-OCT-24	Monthly Category 3 Spill	NOT-40201146469 3870 WELLBORN ST.	08/28/2024 15:46	08/28/2024 16:00	08/28/2024 15:48				THE SPILL ORIGINATED FROM A 6  LINED EASEMENT SEWER MAIN ON THE SIDE 0F 3870 WELLBORN ST	32.74669	-117.17676	Lower Lateral (Private)	N/A	N/A	170	SPILL BOUNDARIES WERE FROM THE SEWER EASMENT MAIN BACKING UP THROUGH THE PRIVATE LATERAL AND ENDING IN THE LOWER BACK PATIO OF THE PROPERTY (3870 WELLBORN ST) WERE IT SETTLED.	N	NOT APPLICABLE	0				0	Building or Structure	NOT APPLICABLE	THE SPILL EVENT DESTINATION WAS IN THE LOWER  BACK PATIO OF THE PROPERTY (3870 WELLBORN ST) WERE IT SETTLED.	Y	32.74669	-117.17676							08/28/2024 16:20	THE SPILL VOLUME ESTIMATIONS WERE CALCULATED USING THE VISUALCALCULATED METHOD.	THE SPILL START TIME WAS THE TIME THE CUSTOMER CALLED STATION 38 AND THE SPILL END TIME WAS THE TIME CREWS VISUALLY SAW THE SPILL STOP.	Debris-General		Gravity Mainline	NOT APPLICABLE	Concrete	LINED	67	IMPACTS OF THE SPILL WERE TO THE LOWER BAC PATIO @ 3870 WELLBORN ST. 	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow	NOT APPLICABLE	THE SPILL ACTIVITIES WERE TO IMMEDIATELY TO CONTAIN THE SPILL AND RESTORE THE FLOW WITH OUR COMBINATION TRUCK, THEN TRACK THE FINAL DESTINATION FLUSH 2 UP AND 2 DOWN REFER TO SSO INVESTIGATOR TO MITIGATE THE DAMAGES SUSTAINED FROM THE SPILL REFFERED TO CCTV .	Post Spill CCTV	NOT APPLICABLE	 The asset will be repaired/ lined still under contract or warranty. 		08/28/2024 16:20	Crew recovered debris from the downstream unknown origin left door hangers in the area.  		NONE	08/29/2024 14:30														NONE	Management will consult the contractor on the liner warranty. 	NONE	NONE	Yes, the repaired liner is under construction. 	None at this time.	SEE ATTACHED NOT. 40201146469 	No modifications at this time.  	NONE	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	895280	2.1	Certified	Kent Vian	Asst. Deputy Director		21-OCT-24	21-OCT-24	Monthly Category 3 Spill	NOT-40201116730- 5450 UNIVERSITY AVE.	06/14/2024 13:28	06/14/2024 14:00	06/14/2024 13:27				THE SPILL FAILURE POINT WAS IN THE MAIN. THE SPILL APPEARANCE POINT WAS FROM LATERAL EQ #310975769 NORTHWESTBOUND ON 5450 UNIVERSITY AVENUE.	32.74859	-117.07777	Lateral Clean Out (Private)	N/A	N/A	208	THE EXTENT OF THE SPILL BOUNDARIES WAS THE SPILL EXITED A CLEANOUT, HEADED SOUTH, ENTERING THE CURB AND GUTTER, THEN THE SPILL HEADED EAST INTO A STORM DRAIN, AND THEN SOUTH INTO CHOLLAS CREEK OPEN SPACE.	Y	THE STORM DRAIN CONVEYANCE SYSTEM WAS A 30  CONCRETE UNDERGROUND PIPELINE THAT CONVEYED WATER TO CHOLLAS CREEK OPEN SPACE.	150				150	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface	N/A	THE EXTENT OF THE SPILL BOUNDARIES WAS THE SPILL EXITED A CLEANOUT, HEADED SOUTH, ENTERED THE CURB AND GUTTER, THEN THE SPILL HEADED EAST INTO A STORM DRAIN, AND THEN SOUTH INTO CHOLLAS CREEK OPEN SPACE.	Y	32.74532	-117.07716							06/14/2024 14:19	VISUAL CALCULATED METHOD.	SPILL START TIME WAS DETERMINED BY WHEN DISPATCH RECEIVED THE CALL FROM THE CUSTOMER REPORTING THE SPILL, AND THE END TIME WAS DETERMINED BY WHEN CREWS VISUALLY SAW THE SPILL STOP.	Root Intrusion	N/A	Gravity Mainline	N/A	Vitrified Clay	N/A	72	IMPACTS OF THE SPILL WERE TO THE STREET, CURB AND GUTTER, STORM DRAIN AND CHOLLAS CREEK OPEN SPACE.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	CREWS WASHED DOWN THE SPILL AND COLLECTED THE WATER DOWN STREAM USING A COMBONATION TRUCK.	CREWS CONTAINED THE SPILL USING A COMBINATION TRUCK UPON ARRIVAL, AND CREWS WASHED DOWN THE SPILL AND COLLECTED THE WATER DOWNSTREAM USING A COMBINATION TRUCK.	Inspected Sewer Using CCTV to Determine Cause	N/A	THE ASSET WAS RESEARCHED BY THE WWC ENGINEER GROUP AND FOUND TO BE UNDER CONTRACTOR WARRANTY. THE PIPE HAS BEEN REFERRED TO THE CONTRACTOR FOR REPAIR.		06/14/2024 16:00	THE SPILL CAUSE WAS ROOTS 195  DOWNSTREAM FROM MANHOLE # 165.		NONE AT THIS TIME.	06/18/2024 11:26														NONE	RESEARCH COMPLETED NO MODIFICATION NEEDED AT THIS TIME. 	NONE AT THIS TIME.	NONE AT THIS TIME.	INSPECTED THE MAIN USING CCTV TO DETERMINE THE CAUSE.	NONE AT THIS TIME.	INCREASED INSPECTION FREQUENCY OF THE DOWNSTREAM MANHOLE	NONE AT THIS TIME.	NONE AT THIS TIME.	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	896136	2.1	Certified	Kent Vian	Asst. Deputy Director		24-OCT-24	24-OCT-24	Monthly Category 3 Spill	NOT-40201143860 4154 VOLTAIRE ST.	08/20/2024 19:37	08/20/2024 20:00	08/20/2024 19:39				THE SPILL ORIGINATED FROM A 8  SEWER MAIN IN FRONT OF 4154 VOLTAIRE ST.	32.74356	-117.23427	Lower Lateral (Private)	N/A	N/A	380	THE SPILL BOUDARIES WERE FROM THE SEWER MAIN THE BACKING UP INTO THE PROPERTY (4154 VOLTAIRE ST) THROUGH THERE LATERAL AND ENDING IN THE BASEMENT OF THE BUILDING.	N	NOT APPICABLE	0				0	Building or Structure	NOT APPLICABLE	THE SPILL DISCHARGE BACKED UP THROUGH THERE LATERAL FROM OUR CITY SEWER MAIN AND THE FINAL DESTINATION WAS IN THE BASEMENT OF THE PROPERTY (4154 VOLTAIRE ST.)	Y	32.74356	-117.23427							08/20/2024 20:15	THE SPILL VOLUME ESTIMATIONS WERE CALCULATED USING THE VISUAL CALCULATED METHOD.	THE SPILL START TIME WAS THE TIME THE CUSTOMER CALLED STATION 38 AND THE SPILL END TIME WAS THE TIME CREWS VISUALLY SAW THE SPILL STOP.	Fats, Oil and Grease (FOG)	NOT APPLICABLE	Gravity Mainline		Polyvinyl Chloride (PVC)	NOT APPLICABLE	72	THE IMPACTS OF THE SPILL WERE THE BASEMENT OF (4154 VOLTAIRE ST.)	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	NOT APPLICABLE	THE SPILL ACTIVITIES WERE TO IMMEDIATELY TO CONTAIN THE SPILL USING THE VACTOR TRUCK AND THE SECOND VACTOR TRUCK RESTORING THE FLOW THEN MITIGATING THE SEWER DISCHARGE CONTACTING OUR SSO INVESTIGATOR TO ASSESS THE DAMAGES TO THE PRIVATE PROPERTY GETTING OUR CONTRACTOR OUT TO LOCATION TO PERFORM CLEAN-UP OF PRIVATE PROPERTY FLUSHED 2 UP AND 2 DOWN REFFERED TO CCTV.	Post Spill CCTV	NOT APPLICABLE	ASSET WAS RESERCHED BY WWC ENGINEER GROUP AND MADE AJUSTMENTS TO SYSTEM.		08/20/2024 21:00	THE CAUSE OF THE SPILL WAS GREASE IN SEWER MAIN.		NONE	08/21/2024 14:30														NONE	UPDATED FREQUENCY TO 24 MONTH.	YES, ADJUSTMENTS MADE TO MANHOLE INSPECTIONS IN THE AREA.	NONE AT THIS TIME	SEWER MAIN WILL BE CCTV FOR FURTHER INSPECTION.	NONE AT THIS TIME	SEE ATTACHED (UNDER CHANGE DOC)	NONE	NONE	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	897054	1.2	Certified	Kent Vian	Asst. Deputy Director		15-NOV-24	15-NOV-24	Monthly Category 3 Spill	NOT-40201165320- 621 MIRA MONTE.	10/19/2024 12:31	10/19/2024 13:22	10/19/2024 12:30				THE SPILL ORIGINATED FROM MANHOLE#135 EQ#10135278. COORDINATES ARE 32.82219-117.27274. TRAVELED SOUTHWEST DOWN THE STREET TO THE CURB INTO THE STORM DRAIN.	32.82219	-117.27274	Manhole	N/A	N/A	780	THE SPILL BOUNDARIES WERE AT THE MANHOLETRAVEL SOUTHWEST DOWN THE STREET TO THE CURB INTO THE STORM DRAIN.	Y	THE STORM DRAIN SYSTEM WITH THE SPILL TRAVEL HAS A DIAMETER OF 39  AND MADE OF CONCRETE.	710				710	Drainage Conveyance System; Street/Curb and Gutter (2 3)	N/A	THE SPILL TRAVELED DOWN THE STREET, CURB, AND INTO THE STORM DRAIN GPS COORDINATES ARE 32.82219-117.27274	Y	32.82219	-117.27274							10/19/2024 15:30	THE ESTIMATION IS CALCULATED BY VISUAL METHOD.	THE SPILL START TIME IS WHEN THE DISPATCH RECEIVES THE CALL FROM THE CONSUMER  REPORTING THE SPILL. 	Debris from Lateral	N/A	Gravity Mainline; Manhole	N/A	Other (specify below)	HDPE PIPE	26	THE SPILL IMPACT WAS TO THE STREET, CURB, AND STORM DRAIN.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	CREWS RESPONDED, INVESTIGATED, RELIVED, RACKED DOWN THE FINAL DESTINATION RETURN SPILL BACK INTO THE SYSTEM, CALLED CCTV, AND WASHED DOWN THE AREA.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause	N/A	Management reviewed findings and notified homeowners in the area via door hangers about lateral cleaning by private plumbers pushing root tails into city mains.  		10/19/2024 15:30	THE CAUSE OF THE SPILL WAS ROOTS, PUSHED INTO THE CITY'S BY PRIVATE PLUMBER.		None.	10/20/2024 09:43														NOT AT THIS TIME.	None at this time. 	Not at this time 	Not at this time. 	Not needed	None secluded at this time. 	N/A	None.	None.	
2	2SSO10105	Active	Central Contra Costa Sd CS	Central Contra Costa Sanitary District	897083	1.1	Certified	Paul Seitz	CSO Division Manager		22-OCT-24	22-OCT-24	Monthly Category 3 Spill	1003 Carol Ln Lafayette	10/09/2024 15:35	10/09/2024 15:50	10/09/2024 15:30				Spill discharged from 72C3-RI106.5 and M106.3.	37.89068	-122.10262	Manhole; Other Sewer System Structure	Rodding inlet.		103	Spill discharged from 72C3-RI106.5 and M106.3, and spill was contained around both structures, in gravel. Area around manhole measured approximately 10'L X 3'W X .25'D of which 60% of area was wet. Area around the rodding inlet measured 14'L X 7'W X .25'D of which 75% of that area was wet. 	N						51	Unpaved Surface		Spill discharged from 72C3-RI106.5 and M106.3. Area around rodding inlet measured approximately 10'L X 3'W X .25'D of which 60% of area was wet. Area around manhole measured approximately 14'L X 7'W X .25'D of which 75% of that area was wet. 	Y	37.89068	-122.10262	37.8906	-122.10244					10/09/2024 16:15	By using the area method, we measured the 2 locations where spill was contained. First location measured approximately 10'L X 3'W X .25'D of which 60% of area was wet and we estimated the soil was saturated 60%. We calulated that area to be 20.1 gallons.  The second area measured approximately 14'L X 7'W X .25'D of which 75% of that area was wet and we estimated the soil to be 60% saturated. We calculated that area to be 82.4 gallons.  So 20.1+82.4=102.5 or 103 gallons.	We interviewed workers at the place of buisness and there best estimate is the spill began to discharge at 15:30.	Debris-Rags		Gravity Mainline		Other (specify below)	HDPE	21	No harmful impact. Spill was contained to 2 small areas just around the rodding inlet and manhole.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		We relived the plug shortly after arriving on scene. Spill was contained to 2 small areas. A restoration contractor was hired and they removed approximately 3  of soil in the spill areas and and replaced with clean soil. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Reviewed CCTV footage at our Operations meeting. Based upon video we increased cleaning frequency. 		10/09/2024 19:30	Observed rags and paper after plug was relived.		None	10/23/2024 07:30														N/A	See line 20.b	Increased from 12 month to 6 month cleaning frequency. 	N/A	Inspected by using CCTV	N/A	Recorded in our bi-weekly Operations meeting minutes. 	N/A	None	
4	4SSO11368	Active	West Hollywood CS	West Hollywood City	897084	1.1	Certified	Eric Liu	Civil Engineer		23-OCT-24	23-OCT-24	Category 1 Spill	1529-0393 (8814 Betty Way, West Hollywood)	08/24/2024 15:05	08/24/2024 16:40	08/24/2024 13:00				CSMD Map Sheet No. 1529 Manhole No. 393 MMS No. 8918592 There was a slight trickle of water discharging from Manhole No. 393.   Note that this sewage discharge was originally reported as a Category 3 event with Event ID 896520, but after further review, it was re-entered as a Category 1. 	34.08784	118.38342	Inside Building or Structure; Manhole			500	Basement of 8814 Betty Way (per the video of constituent's plumber at on-site) and MH 393 near private drain.  	Y	There was a slight trickle of water discharging from Manhole No. 393 into the street and private drain. 	0	300	There was a slight trickle of water discharging from Manhole No. 393 into the street and private drain, which leads to Hollyhills drain and Ballona Creek. 	300	200	Building or Structure; Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		There was a slight trickle of water discharging from Manhole No. 393 into the street and private drain, which leads to Hollyhills drain and Ballona Creek. 	Y	34.08774	118.38347							08/24/2024 17:15	CWEA SSCSC Manhole Gauge	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops. 	Debris-Rags		Other (specify below)	City owned private mainline.	Other (specify below); Vitrified Clay	Note: We do not have the as-built plan of private mainline, therefore the pipe material and age of the pipe are unknown. The answer of  34 years  in 6b is based on the record we found related to the private mainline.	34	The sewage spill flowed into the street, a private drain, and the basement of 8814 Betty Way. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow		Upon arrival, Manhole 393 had a slight trickle of water discharging. We set up containment at Manhole 393, then proceeded to downstream Manhole 106 on Cynthia Street and hydro-cleaned the private mainline up to Manhole 393, breaking down a debris and rag stoppage. We then washed down and vacuumed the area around Manhole 393. A constituent at 8814 Betty Way reported that she had sewer water discharged into her basement. When the crew attempted to take a photo, the constituent said that the plumber on site had a cellphone video of the spill. The constituent will contact the City of West Hollywood for cleanup of her property. All required agencies were notified.  	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Mainline placed on a 90-day Hydro Rootsaw periodic. 	Mainline placed on a 90-day Hydro Rootsaw periodic. 	08/24/2024 19:30	Inspected sewer and roots were protruding from lateral about 50' S/O MH 393. 	N			Ballona Creek  	Other (specify below)	Creek	Ballona Creek	No impacts. 	Other (specify below)	No impact.	N/A	0	N	N												
3	3SSO10252	Active	Santa Cruz City CS	Santa Cruz City	897088	1.6	Draft Submitted	James Locatelli	Wastewater Collection Field Crew Leader	25-OCT-24			Category 1 Spill	155 Surfside Street	10/20/2024 11:54	10/20/2024 13:05	10/20/2024 11:00				Appearance point was from private lateral located at 155 Surfside Street. N 36.95847 / W 122.04159	36.95847	-122.04159	Lateral Clean Out (Private)			160	Contents of spill entered a storm drain catch basin 110 feet from the appearance point on Surfside Street. Spill was contained in a 24-inch storm drainpipe. Pipeline was flushed and vacuumed.	Y	Drainage conveyance system consisted of a catch basin connected to a 1688 foot 24 -inch concrete storm drain piping system.	160	0	Discharge point is approximately 1688 feet from appearance point at the Bethany Curve seasonal creek Chanell.	0	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		Contents of spill was contained within the section of 24 inch storm drain pipe between access hole structures M4-DM603 and M4-DM616 approximately 188 feet. Line was flushed and vacuumed.	Y	36.95856	-122.0413	36.95908	-122.0414					10/20/2024 13:40	Estimation of GPM being discharged from appearance point using criteria from SMART Sewer Overflow Volume Estimation Workbook. Estimation of 1 GPM X 160 minutes =160 gallons. Contents of spill was recovered by hydro flushing and vacuuming from a dry downstream portion of pipeline.	Spill start time estimated by information provided by original reporting party. End time estimated by at the time blockage was alleviated and flow from appearance point subsided.	Debris-Rags; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		60	No environmental impact and no public contact reported.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	Contents of spill contained in storm water pipe. Alleviated blockage, restored normal flow, Washed and vacuumed curb and gutter, removed contents from storm pipe and returned to sanitary sewer main. 	Responding on call person monitored the path of overflow and determined there was ample storage space in the catch basin. Installing a berm would have caused the spill to spread out over a larger area. Blockage was cleared and cleaning of the storm drain system and curb and gutter was performed. 	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV	Enviromental Compliance to perform public outreach and investigate sources of rags.	Investigate source of rags and FOG using CCTV and public outreach. Thoroughly cleaning and removing deposits. 	CCTV to assess location of FOG and rags. Enhanced pipeline cleaning (performed 10/21/2024) Continued periodic enhanced cleaning schedule.	10/21/2024 12:43	CCTV revealed an area of FOG deposits that are affecting the conveyance of rags and debris. 	N			No water body affected	Other (specify below)	No water body affected	No water body affected	None	Other (specify below)	None	City of Santa Cruz	0	N	N												
4	4SSO10489	Active	Simi Valley CS	Simi Valley City	897094	1.1	Certified	Al Sexton	Acting Assistant Public Works Director - Operations		23-OCT-24	23-OCT-24	Monthly Category 3 Spill	1784 Tallowberry Ln.	10/19/2024 10:30	10/19/2024 11:15	10/19/2024 10:00				At 10:30 AM, a report was received regarding a sewer spill from the main line clean out. The site was accessed at 11:15, and the blockage was cleared by 11:20 AM. According to the homeowner, the spill began around 10:00AM. Four homes were situated upstream from the blockage. The total spill volume was calculated to be 131 gallons. All spilled sewage was fully recovered, including the amount recovered from the drainage conveyance system.	34.26907	-118.79476	Other (specify below)	main line clean-out.	None	131	Spill boundaries start in front of 1784 Tallowberry Ln. in mainline clean out, goes south down driveway and turns west on Bending Branch way. Just reaches storm drain in front of 1717 Heatherwisp Lane on Bending Branch Way.	Y	 Sewer spill flowed down concrete driveway and concrete swell down to main street traveling along gutter to storm drain entrance. Flow did not go down storm drainpipe.	2				131	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Sewer spill final destination was in curb storm drain catch basin. Flow did not continue down storm drain.	Y	34.26877	-118.7954							10/19/2024 11:20	Spill estimation was used by size of pipe average flow in pipe and spill time.  Also looked at how only four homes connected to sewer line above blockage. Calculations 6  pipe to feet 6Divide by 12=.5 .875 x .5 x .5=.21875 .21875x 7.48=1.63 GPM 1.63 x 80 Min =131 Gallons Total.  Another look based on house usage. 250 gallons per home x 4= 1000 gallons 1000 divided by 24 Hrs.= 41.66 Gallons per hour	Spill start time was given by homeowner who was outside and noticed the start of the spill. Spill end time was when Collections crew popped blockage, and no more sewer was coming out of the clean out.	Fats, Oil and Grease (FOG)		Gravity Mainline		Polyvinyl Chloride (PVC)		26	Minimum impact, street, curb and gutter and storm drain washed down and vacuumed. 	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		The collection crew arrived on site and set up the combination truck at the downstream manhole. They successfully cleared the blockage located 100 feet upstream from the manhole. The team proceeded to vacuum up the sewer spill, recovering the entire spill, and thoroughly washed down the street, curb, gutter, and storm drain to ensure the area was fully cleaned.	Adjusted Schedule/Method of Preventive Maintenance; Post Spill CCTV		Cleared blockage, CCTV video after blockage cleared. Clean sewer line of remining grease. Plan to prevent reoccurrence is to move up the cleaning cycle to once a year using a spinning nozzle.		10/22/2024 14:00	Using CCTV, we confirmed that the cause of the spill was grease. 		We will continue to evaluate the cleaning cycle period using visuals from cleaning and use of CCTV.  	10/22/2024 14:18														Prop 65 written but no homeowner cited. Residential neighborhood.	Move line to enhanced cleaning, once a year using a spinning nozzle for more enhanced level of cleaning.	Adjust schedule of cleaning to once a year using a spinning nozzle to ensure proper grease removal.	No plans line has small sag but with more frequent thorough cleaning schedule. 	Line has a small sag that could be causing the grease build up by slowing down the speed of the flow and cooling just past the sag.	No capital improvements scheduled. Newer line	Added enhanced yearly cleaning to our work order system. On work order will state to use spinning nozzle for more enhanced grease removal. 	Spill response modifications would include more picture taking and possibly calling out more personnel to assist in response.	We will continue to evaluate the cleaning cycle period using visuals from cleaning and use of CCTV.  	
8	8SSO11477	Active	Fontana City CS	Fontana City  DPW	897099	1.2	Certified	KYLE SCRIBNER	Public Works Manager	21-OCT-24	21-OCT-24	21-OCT-24	Category 2 Spill	Seville Ave	10/18/2024 19:00	10/18/2024 19:30	10/18/2024 19:00				  See Attachment 	34.10164	-117.43144	Gravity Mainline; Manhole			12000	Storm Drain inlet was located at SE corner of parking lot where spill flowed into. Pig dikes were set up to prevent further flow and 1000 gallons had entered in storm drain but was captured at Learner and Miller Approximately 300' DS	Y	Storm Drain inlet was located at SE corner of parking lot where spill flowed into. Pig dikes were set up to prevent further flow and 1000 gallons had entered in storm drain but was captured at Learner and Miller Approximately 300' DS	1000	0			12000	Drainage Conveyance System		See Attachment	Y	34.10164	-117.43144							10/18/2024 21:00	Estimated by the discharge by taking measurements. 	Once notified and the amount of sewage on the surface. 	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		50	No down stream impacts were discovered, all spill stayed contained within the are of the spill. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System	Vactored all sewage, and sanitized area. 	See attachment for spill reponse	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source		Adjusted schedule and notified are of FOG issues. 	See attachment for milestones and cleanup efforts	10/18/2024 21:00	Once onsite discoverd grease blaockage and used vactor to clear blockage.	N												N													
2	2SSO10209	Active	Union S.D. CS	Union Sanitary District	897100	1.4	Amended	Jose Rodrigues	Collection Services Manager	22-OCT-24	23-OCT-24	23-OCT-24	Category 2 Spill	38622 Lexington Street	10/17/2024 08:20	10/17/2024 08:53	10/16/2024 17:30	10/17/2024 11:49	24-5884		USD Manhole X17008  See attachment 	37.551486	-121.990289	Manhole	N/A	N/A	9279	The spill coming out of USD Manhole X17008 traveled towards the curb and gutter on the western side of Lexington St, eventually reaching the storm drain inlet at the southwest corner of Lexington St and Monroe Ave (@ Lattitude: 37.55120, Longitude: -121.989985). The spill continued through the storm system to a storm manhole approximately 33 feet away on the northwest side of the intersection of Lexington St and Monroe Ave (@ Latitude: 37.55123, Longitude: -121.98978) before it drained 20 feet towards Mowry Ave (@ Lattitude: 37.551207, Longitude: -121.989713)   into a flood canal. The final destination of the spill was located before the Bell St overpass located at (Lat: 37.54947, Long: -121.99200) See attached details included in the  Lexington Spill Response Form  document and the Lexington Spill Map.   	Y	The drainage conveyance system entry location was a drain inlet located on the southwest corner of Lexington St and Monroe Ave. (Latitude: 37.55120, Longitude: -121.989985)  	9016	0			9279	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)	N/A	The spill coming out of USD Manhole X17008 traveled towards the curb and gutter on the western side of Lexington St, eventually reaching the storm drain inlet at the southwest corner of Lexington St and Monroe Ave (@ Lattitude: 37.55120, Longitude: -121.989985). The spill continued through the storm system to a storm manhole approximately 33 feet away on the northwest side of the intersection of Lexington St and Monroe Ave (@ Latitude: 37.55123, Longitude: -121.98978) before it drained 20 feet towards Mowry Ave (@ Lattitude: 37.551207, Longitude: -121.989713)   into a flood canal. The final destination of the spill was located before the Bell St overpass located at (Lat: 37.54947, Long: -121.99200) See attached details included in the  Lexington Spill Response Form  document and the Lexington Spill Map.    	Y	37.5512	-121.989985	37.55123	-121.98978	37.551207	-121.989713	37.54947	-121.992	10/17/2024 09:25	We used the measured volume method. (See the details included in the following attached documents: Lexington Spill Response Form, Lexington Spill Volume by Area Estimation Worksheet_Street Calculations, Lexington Spill Volume by Area Estimation Worksheet_Curb and Gutter Calculations, Lexington Spill Volume by Area Estimation Worksheet_Flood Control Calculations)        	We based our start time on the information we received while we interviewed a resident who was in the area during the time we believe the spill to have begun (See attached details included in the  Lexington Spill Response Form  document).    The spill end time was at 9:25AM when the blockage was cleared in sewer main X17008-X17005.	Fats, Oil and Grease (FOG); Root Intrusion	N/A	Gravity Mainline	N/A	Vitrified Clay	N/A	56	Street curb and gutter, drainage conveyance system and flood canal. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	N/A	See attached details included in the  Lexington Spill Response Form  document  	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer; Post Spill CCTV	N/A	Sewer main (X17008-X17005) will be on a modified cleaning schedule. This structure will be added to a 12-month Hydro Saw cleaning schedule for grease. The root intrusion that came through a fracture in the VCP will be repaired as necessary (See attached details included in the  Lexington Spill Response Form  document).  	(See attached details included in the  Lexington Spill Response Form  document).  	10/17/2024 17:30	A CCTV Inspection was performed on sewer main (X17008-X17005) to identify the cause of the spill. Roots were found 118 feet downstream of USD MH # X17008, with water staining indicating the blockage.	Y	Since this is the start of the line and the only structure contributing to this spill, we will be installing a flow meter at USD manhole X17005 to determine the flow rate coming from this structure during the same time of day and over the same period of time to see what the volume is. There were also several areas of water coming from nearby apartment irrigation systems leaking into the drainage conveyance system adding to the standing water in the flood control canal.        	11/07/2024 08:00										N												Since this is the start of the line and the only structure contributing to this spill, we will be installing a flow meter at USD manhole X17005 to determine the flow rate coming from this structure during the same time of day and over the same period of time to see what the volume is. There were also several areas of water coming from nearby apartment irrigation systems leaking into the drainage conveyance system adding to the standing water in the flood control canal.        	
2	2SSO10172	Active	Ross Valley Sanitary District CS	Ross Valley SD	897101	1.1	Certified	Paul Bruemmer	O&M Manager 		30-OCT-24	30-OCT-24	Monthly Category 3 Spill	989 Magnolia Ave.  Larkspur  CA	10/18/2024 08:48	10/18/2024 09:01	10/18/2024 08:26				The spill location was at MHL425.010 in the street, at 989 Magnolia Ave in Larkspur. cross street Murray ave  	37.94626	-122.5456	Manhole		n/a	159	The entire spill (159) gallons, exited MHL425.010 and traveled approximately 6  into storm drain catch basin. From the storm drain catch basin, the spill traveled approximately 180  downstream to a open pipe fallout. It was at this location District staff set up a Vac truck and captured the spill. 	Y	The spill entered the storm drain catch basin and traveled through 3 nearby downstream storm drain MHs which ultimately merged into an open-faced pipe fall out. 	159				159	Drainage Conveyance System; Street/Curb and Gutter (2 3); Unpaved Surface		The spill entered the storm drain catch basin and traveled through (3) nearby downstream storm drain MHs, which ultimately merged into an open-faced pipe fall out. The spill did not reach the end of the open-faced pipe fallout. District staff set up a Vac truck and flushed the storm drain with fresh water, flushing out the spill, ultimately vacuuming up everything exiting the storm drain system. 	Y	37.94681	-122.5453							10/18/2024 09:18	The majority of the flow was collected in the storm drain system, underground. Staff utilized District flow rate charts to determine the flow rate exiting the MH. Once the rate of flow was determined, math calculations using units of time were determined to produce a total spill volume. 	The spill start time was estimated based on the time the fire department dispatch was notified and spill volume staff observed at the spill location. The spill end time was determined when staff broke the blockage with a hydro jet truck. 	Debris from Construction; Debris-General; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		70	The spill had no impact. The spill was contained within the storm drain system, where it was ultimately 100% recovered.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		The entire spill (159) gallons, exited MHL425.010 and traveled approximately 6  into storm drain catch basin. From the storm drain catch basin, the spill traveled approximately 180  downstream to a open pipe fallout. It was at this location District staff set up a Vac truck and captured the spill. District staff flushed fresh water through the storm drain inlet where the spill entered. Staff flushed all storm drain segments before vacuuming up all materials. 	Enforcement action against Fats, Oil, and Grease (FOG) source; Plan Rehabilitation or Replacement of Sewer; Post Spill CCTV		Line segment was thoroughly cleaned with hydro jet truck. Line segment was also CCTV'd to confirm a sag in the line. 		10/18/2024 11:18	The spill had multiple issues that contributed to the spill. 1: known 75% sag in the line. 2: historical buildup of grease. and collection of debris from upstream into sag. 		Engineering planning for possible replacement 	10/21/2024 09:30														 FOG- regulatory agency was notified to follow up with grease trap inspections of nearby restaurants. 	none	3 month flushing schedule 	Engineering to review CCTV inspection and plan possible CIP project to replace line segment and fix existing sag. 	CCTV inspection of line segment L425.010.L152.250.1.	Pending 	none 	none	Engineering planning for possible replacement 	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	897111	1.3	Certified	Ameal McLaurin	Sewer Supervisor 2	22-OCT-24	29-OCT-24	29-OCT-24	Category 1 Spill	7120 Hawley Street, Oakland Ca	10/18/2024 12:28	10/18/2024 13:17	10/18/2024 10:00				Lateral clean out (private) was overflowing in the sidewalk area, the sewage was flowing on the curb and gutter and entering into the nearest downstream storm drain.	37.75554	-122.19512	Lateral Clean Out (Private)			225	Lateral clean out (private) was overflowing in the sidewalk area, the sewage was flowing on the curb and gutter and entering into the nearest downstream storm drain.	Y	12  storm main that flows to Arroyo Viejo creek, Damon Slough.	26	191	12  storm main that flows to Arroyo Viejo creek, Damon Slough.	191	34	Drainage Conveyance System; Street/Curb and Gutter (2 3)		Lateral clean out (private) was overflowing in the sidewalk area, the sewage was flowing on the curb and gutter and entering into the nearest downstream storm drain.	Y	37.75554	-122.19512							10/18/2024 13:23	225 min x 1 GPM = 225 Gallons total spilled Recovered from curb and gutter: 102' L x .5' W x .02' D x 7.48 - Gal = 8 Gals. Recovered from storm drain: 3.5' L x 2' W x .5' D x 7.48 Gal= 26 Gals. Total recovered: 8+26=34 Gals. Total lost in the storm drain: 225-34= 191 Gals	Start time was based on eyewitness account. End time was based on responding sewer crew restoring the flow in the mainline.	Debris-wipes/Non-disposables		Gravity Mainline		Vitrified Clay		99	Lateral clean out (private) was overflowing in the sidewalk area, the sewage was flowing on the curb and gutter and entering into the nearest downstream storm drain that flows to underground to Lion Creek, Arroyo Creek, and Damon Slough	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Washed down the affected areas in the curb and gutter and storm drain.	Washed down the affected areas in the curb and gutter and storm drain. . Recovered a portion of the spill.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Line was adjusted to the three-month high frequency hydro program. W.O. 1567296	Line was adjusted to the three-month high frequency hydro program. W.O. 1567296	10/23/2024 09:25	CCTV found baby wipes and grease to had been the cause of the spill.	N			Lion creek, Arroyo Viejo creek, and Damon Slough	Stream/Creek		Creek	None	Other (specify below)	None	N/A	0	Y	N												
8	8SSO10554	Active	Loma Linda City CS	Loma Linda City	897113	1.2	Certified	Edward Aguilar	Utilities Maintenance Tech III	22-OCT-24	22-OCT-24	22-OCT-24	Category 2 Spill	University Ave. at Evans St.	09/21/2024 20:15	09/21/2024 21:15	09/21/2024 20:00	10/08/2024 15:13	24-5710		Received phone call at 8:14pm on Sept 21, 2024 and got to the site at 9:15 pm with blockage relieved at 9:25 pm. No photographs were taken that night. The coordinates to the spill are listed below.	34.052	-117.2674	Gravity Mainline			2700	At the intersection of University Ave. and Evans St. at the manhole. 	N						0	Other (specify below)	Dry channel.	Dry channel behind mobile home park.	Y	34.05675	-117.27085							09/21/2024 21:25	Visual sight along with the time it was flowing.	Received call at 8:14pm on Sept. 21, 2024 and relived the blockage at 9:25 pm.	Fats, Oil and Grease (FOG)		Manhole		Vitrified Clay		64	No impact.	N	Cleaned Up (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Used sand bags to contain, relieved blockage and washed down area while vacuuming excess water.	Adjusted Schedule/Method of Preventive Maintenance		Added to our scheduling maintenance plan. 	Have added this line to a more frequent flushing regime.	09/21/2024 21:25	Upon retrieval of jetter, removed FOG components. 	N												N													
2	2SSO10105	Active	Central Contra Costa Sd CS	Central Contra Costa Sanitary District	896945	2.2	Certified	Paul Seitz	CSO Division Manager	14-OCT-24	22-OCT-24	22-OCT-24	Category 1 Spill	94 Tarry Ln. Orinda, CA	10/10/2024 08:54	10/10/2024 08:50	10/05/2024 09:00	10/10/2024 09:46	24-5751		Spill came from manhole #23 located in remote area of backyard of above address. Homeowner doesn't visit the area often so was not aware of the spill until our crew found it while looking for access for another scheduled cleaning job.	37.91381	122.1918	Manhole			2541	Spill exited manhole traveled approximately ten feet over an unpaved surface (soil) then down a steep embankment directly entering a small creek which flows through an Orinda residential area later combining with Lauterwausser Creek where we set up pumps to collect the spill in it's entirety and returned it to our sanitary system.	N				Se attached photos.	2541	2541	Other (specify below)	Flowing creek	Spill discharged from manhole behind 94 Tarry lane and travelled approximately 10' over an unpaved surface then down a steep embankment directly entering a small creek which flows through an Orinda residential area later combining with Lauterwausser Creek where we set up pumps to collect the spill in it's entirety and returned it to our sanitary system.	Y	37.91379	-122.19148	37.90805	-122.18894	37.90621	-122.18803	37.90402	-122.18969	10/10/2024 09:26	See attached calculation sheet.	See attached assumption sheet.	Debris-Rags; Other (specify below); Root Intrusion	Gravel	Gravity Mainline		Other (specify below)	Concrete lined and coated steel.	73	Based on an inspection conducted by a third party bioligist, there were no negative impact on the creek or it's aquatic life.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		We tested the creek to determine the extent of the spill and set up downstream of that area. We pumped and flushed the creek with fresh water until a clean test was achieved.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Reviewed CCTV footage in our bi-weekly Operations meeting. Based on that footage we increased the cleaning frequency. 	N/A	10/10/2024 21:55	From reviewing our CCTV footage we found a sag in our mainline. 	N			Lauterwausser Creek	Stream/Creek		Stream	None observed	Other (specify below)	None. The creek is inaccessible to the public.	N/A	0	N	Y	Upstream, site, downstream.	CBOD, dissolved oxygen, Ph, total residual chlorine, ammonia, COD, enterococcus, total/fecal coliform, e-coli										
3	3SSO10267	Active	Freedom Co Sanitation District CS	Freedom CSD	897120	1.3	Certified	Ramon Sandoval	Assistant Superintendent 	22-OCT-24	30-OCT-24	30-OCT-24	Category 2 Spill	Mark Ave / Arroyo Dr.	10/19/2024 13:25	10/19/2024 13:40	10/19/2024 11:56	10/19/2024 14:00	24-5930		Spill originated from manhole FA39. to paved surface area 112 feet to curb and then storm drain that traveled 240 feet to a storm water detention basin.	36.96433	-121.76257	Manhole			1646	From Manhole FA39 to paved surface area 112 feet to curb and then storm drain that traveled 240 feet to a storm water detention basin.	Y	Sewage entered a storm drain, to a closed pipe and traveled to a stormwater detention basin. 	52	0			500	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		From manhole FA39 to paved surface area traveling along curb and gutter 112 feet entering storm drain and traveling 240 feet and exiting into a storm water basin.	Y	36.96434	-121.76259	36.96392	-121.76248	36.9638	-121.76186			10/19/2024 14:37	R/P Travis from address 389 Mark Ave. stated that just before noon he was eating his lunch in his pickup and started to see sewage seeping out of manhole FA39. He then walked into his house and at some point, came back out and then saw sewage overflowing out of manhole FA39 at that point he called 911. Based off the interview I elected to say the spill started just before noon at 11:56am on 10/19/24. Crews arrived and cleared blockage at 2:37PM on 10/19/24. flow out of vent holes was used to calculate volume discharging per minute at a height of 2 . Two vent holes were discharging through a diameter of 1  opening. Duration of overflow was 161 minutes that totaled 1,646 gallons. A combo truck was used to recover sewage that was berm and ponded.  500 gallons of spilled sewage was recovered when cleanup was complete. The maximum capacity of the combo truck is 500 gallons.	Per R/P's interview spill start time was 11:56AM on 10/19/24. Field crew cleared blockage using a combo truck at 2:37PM on 10/19/24.	Debris-Rags; Fats, Oil and Grease (FOG)		Gravity Mainline		Polyvinyl Chloride (PVC)		2	Minor impact since crew was able to berm at the storm drain to prevent more sewage from entering and washed down affected area and recover 500 gallons.  Flow path of sewage was along curb and gutter at the end of a street and the end of the appearance point is along a private road. 	N	Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		First responder arrived on scene at 1:40PM and started to berm at the storm drain to prevent more sewage from entering storm drain.  A berm was also built at the outlet pipe near the storm water basin. A combo truck arrived 2:30PM and was used to vacuum up sewage that was berm at the storm drain and ponded at the storm water basin after blockage was cleared.	Added Sewer to Preventive Maintenance Program; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause		This segment of line was replaced two years ago, after CCTV was performed it was determined that there is a sag in the gravity main and FOG. This section of line has been added to a 90-day special maintenance, FOG outreach will be performed as well.	None	10/19/2024 16:30	CCTV was performed on 10/21/24 and crews identified a sag in the gravity main with FOG build up.	N		10/21/2024 16:00										N													
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	897122	1.1	Certified	David Leamer	Assistant Superintendent		28-OCT-24	28-OCT-24	Monthly Category 3 Spill	348954	09/17/2024 10:45	09/17/2024 11:22	09/17/2024 07:30				See Attached Spill map with Photos.	38.52878	-121.43498	Gravity Mainline			226	See Attached Spill Map with Photos	Y	See Attached Spill map with Photos.	226				226	Drainage Conveyance System		See attached Spill Map with Photos.	Y	38.52878	-121.43498	38.52719	-121.43537					09/17/2024 18:00	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Other (specify below)	Pipe Structural Problem/Failure - Failed Joint	Gravity Mainline		Vitrified Clay		17	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		The main line spilled through the construction trench through a defect in the storm drain pipe entering the drainage conveyance system. Sacramento City Drainage crews had identified sewer entering into the drainage conveyance system through a pipe defect in an 18� storm drain pipe below the SacSewer line (314-161-2094). After dye testing, Sacramento City Drainage confirmed the main line spilled into the drainage conveyance system. SacSewer crews repaired the main line and hydro-cleaned affected area recovering all water.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV; Repaired Facilities or Replaced Defect		SacSewer inspected mainline with CCTV on 9/17/24. Based on findings, SacSewer increased preventative cleaning frequency to 18 months from 24 months.		09/17/2024 12:50	The main line spilled through the construction trench through a defect in the storm drain pipe entering the drainage conveyance system. Sacramento City Drainage crews had identified sewer entering into the drainage conveyance system through a pipe defect in an 18� storm drain pipe below the SacSewer line (314-161-2094). After dye testing, Sacramento City Drainage confirmed the main line spilled into the drainage conveyance system. SacSewer crews repaired the main line and hydro-cleaned affected area recovering all water.		N/A	09/17/2024 12:50														N/A	SacSewer increased preventive cleaning frequency from 24 months to 18 months.	SacSewer increased preventive cleaning frequency from 24 months to 18 months.	N/A	Inspected mainline SacSewer with CCTV on 9/17/24.	N/A	SacSewer increased preventive maintenance frequency on 10/1/24	N/A	N/A	
3	3SSO10296	Active	Monterey One Water Reg Trtmt & Outfall Sys CS	Monterey One Water	897123	1.1	Certified	Darrele Harris	Utilities and Maintenance Manager		22-OCT-24	22-OCT-24	Monthly Category 3 Spill	Farm Workers Housing force main	10/04/2024 13:00	10/04/2024 14:00	10/02/2024 17:00				A two inch clean out attached to the force main	36.65739	-121.68932	Force Main	clean out attached to force main 	none	100	all spill volume remained in the pipe trench.	N						100	Other (specify below); Unpaved Surface	All water and soil was recovered or removed.	Same as above	Y	36.65739	-121.68932							10/04/2024 14:30	volume was recovered in vac trailer	the start time was based on notification of responsible party that damaged the clean out that resulted in the spill. the end time is based on M1W arrival on scene and shutting down pumps. 	Damage by Others Not Related to Collection System Construction/Maintenance		Force Main; Other (specify below)	Clean out attached to force main	Polyvinyl Chloride (PVC)		4	no impact, all volumes recovered and soil excavated 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		we were not immediately notified by third party that caused the spill. according to their staff after hitting line, area was excavated to reach force main and water remained in small trench. water was removed by vac trailer and wet soil was excavated and transported to disposal location.  	Other (specify below)	M1W reenforced the importance of using USA call back system if markings are disturbed before excavating.	M1W reenforced the importance of using USA call back system if markings are disturbed before excavating.		10/04/2024 14:30	Line was marked by M1W using USA system, third party contractor removed markings during construction and failed to recall for new markings and hit line. 		None	10/04/2024 17:20														NA	NA	NA	NA. responsible party replaced and repaired onsite	clean out	NA	NA	NA	None	
2	2SSO10154	Active	Mill Valley City CS	Mill Valley City	897125	1.1	Certified	Andrew Poster	Director of Public Works		26-NOV-24	26-NOV-24	Monthly Category 3 Spill	280 Buena Vista Ave	10/18/2024 10:27	10/18/2024 10:39	10/18/2024 10:24				MV Sewer Manhole L39.  Mill Valley Golf Course 3rd hole fairway (per revised alignment 10/24) 	37.91318	-122.5359	Manhole		NA	188	Spill came out of manhole and wetted grass for a few fett in the surrounding area.  	N	NA	0				0	Unpaved Surface		Spill ran into grass in area immediately surrounding the manhole. 	Y	37.91318	-122.5359							10/18/2024 11:11	Duration and flow rate estimation method (Manhole cover in place)	In discussion with golf course General Manager, they called us immediately as wet spot was found.  Golfers are very quick to report water on the play surface as it degrades quality of play. 	Debris-wipes/Non-disposables; Root Intrusion		Gravity Mainline		Vitrified Clay		70	Spill was absorbed into surrounding grass.  No solids came to the surface. 	N	Restored Flow		Restored flow, spill was absorbed into grass	Plan Rehabilitation or Replacement of Sewer		Sewer main will be evaluated for future replacement		10/25/2024 10:38	NA		NA	10/25/2024 10:38														NA	Sewer main will be evaluated for future replacement	NA	Sewer main will be evaluated for future replacement	Sewer main will be evaluated for future replacement	Sewer main will be evaluated for future replacement	NA	NA	NA	
2	2SSO10099	Active	Burlingame City CS	Burlingame City PWD	897141	1.2	Certified	RICHARD HORNE	Streets, Storm Drain and Sewer Division Manager	23-OCT-24	23-OCT-24	23-OCT-24	Category 1 Spill	1100 Jackling	10/02/2024 21:45	10/02/2024 22:15	10/02/2024 20:45	10/23/2024 11:29	24-5993		Easton creek behind 1100 Jackling Drive, Hillsborough	37.57938	-122.37525	Manhole			929	The spill was contained to two low spots in the creek by a concrete foundation footing crossing the creek. Crews added sandbags to help shore containment.	Y	Two low spots in the dry creek bed contained the spill within the creek bed. The creek was primarily dry, since there has not been a wet weather event for several months; only irrigation runoff from Hillsborough and Burlingame residents was sporadically observed.	929	0	The discharge point was from a manhole behind 1100 Jackling Drive. The manhole asset # E4-21027.	929	929	Unpaved Surface	Dry creek bed; sediment, soil and rocks. as stated below- Staff did not immediately report this overflow into CIWQS or contact Cal OES, as our interpretation of the spill initially placed this SSO into a category 3 spill; under 1000 gallons and fully contained in a dry conveyance system that was 7,878� from the San Francisco Bay and is 91.84� above sea/Bay level. The entire spill was removed and or placed back into the sanitary sewer system.	Two low spots in the creek bed contained approximately 617 and 110 gallons of sewage. an additional 1 cubic yard of materials were removed (202 gallons) 	Y	37.57958	-122.37518							10/03/2024 00:25	Using the volume of a rectangle method it was determined that the two affected areas contained a total of 727 gallons of spill and the one cubic yard of soil and debris was removed which converts to 202 gallons for a total of 919 gallons. pics 5, 7, 8, 12, 17, 22	residents were interviewed. One responded that they think that they heard water in the easement/creek at 8:45pm on October 2, 2024 	Debris from Construction; Vandalism (specify below)	large chunks of asphalt were observed through video inspection and removed from the mainline by crews.	Gravity Mainline		Polyvinyl Chloride (PVC)		30	Upstream of this mainline blockage, the city of Burlingame has 17 residences with 4� sewer laterals connected to the 8� sewer main. The Town of Hillsborough, a satellite agency has two 6� trunk lines that connect to this 8� sewer main. The town of Hillsborough also has 6 residences that have a 4� sewer lateral connected to this 8� mainline. The chunks of asphalt that were removed from Burlingame�s 8� sewer main were approximately 12� long and 8� wide; they did not originate from Burlingame�s residents. Pics 10 & 11	N	Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System	Staff did not immediately report this overflow into CIWQS or contact Cal OES, as our interpretation of the spill initially placed this SSO into a category 3 spill; under 1000 gallons and fully contained in a dry conveyance system that was 7,878� from the San Francisco Bay and is 91.84� above sea/Bay level. The entire spill was removed and or placed back into the sanitary sewer system.	Staff placed sandbags downstream of the overflow to ensure containment within the creek bed	Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Post Spill CCTV	Contacted Satellite agency- The Town of Hillsborough	Burlingame Staff contacted Hillsborough staff to remind their crews to inspect all upstream connection points when paving projects are being conducted.	continue to inspect and service the line segments every three years. continue to provide root foaming every two years.	10/11/2024 12:04	Crews inspected the mainline on October 3 which located additional asphalt debris in the sewer main. Crews then spent several hours removing more asphalt chunks from the sewer line. Crews have service upstream and downstream segments to ensure flow. 	Y	To ensure that no other debris flows into our system from our Satellite agencies	12/10/2024 19:06	Easton Creek	Stream/Creek	The creek is dry and was fully contained in a dry conveyance system that was 7,878� from the San Francisco Bay and is 91.84� above sea/Bay level. The entire spill was removed and or placed back into the sanitary sewer system.	Easton Creek is dry and not flowing during the summer months, except seasonal irrigation runoff	None	Other (specify below)	None- the creek and sewer line is landlocked by the residents of Hillsborough and Burlingame.	Dry creek. either Hillsborough or Burlingame can advise residents.	0	N	N											To ensure that no other debris flows into our system from our Satellite agencies	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	897158	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		20-NOV-24	20-NOV-24	Monthly Category 3 Spill	11608 North Gothic Avenue	10/23/2024 09:24	10/23/2024 09:52	10/23/2024 09:24				The initial crew arrived at 9:52 A.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. Sewer was coming out of the maintenance hole at Gothic Avenue. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed.	34.281185	-118.488985	Gravity Mainline			116	Sanitary Sewer Overflow	N	No sewage entered the drainage system.	0				116	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system. 34.281185, -118.488985	Y	34.281185	-118.488985							10/23/2024 09:57	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.	DIAMETER = .75 INCHES HEIGHT = 3 INCHES # OF PICKHOLES = 1 DURATION = 33 MINUTES   TOTAL = 116 GALLONS	Root Intrusion		Gravity Mainline		Vitrified Clay		66	It was estimated that approximately 116 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment, and subsequently the entire back up amount was returned to the sewer system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		On Wednesday, October 23, 2024 at 9:24 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 11608 North Gothic Avenue (TG 501-E1). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 9:57 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 116 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment, and subsequently the entire back up amount was returned to the sewer system. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		On Wednesday, October 23, 2024 at 9:24 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 11608 North Gothic Avenue (TG 501-E1). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 9:57 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 116 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment, and subsequently the entire back up amount was returned to the sewer system. 		10/23/2024 09:57	On Wednesday, October 23, 2024 at 9:24 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 11608 North Gothic Avenue (TG 501-E1). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 9:57 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 116 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment, and subsequently the entire back up amount was returned to the sewer system. 		None at this time	10/23/2024 09:57														None at this time	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.		None at this time	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	None at this time		On Wednesday, October 23, 2024 at 9:24 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 11608 North Gothic Avenue (TG 501-E1). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 9:57 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 116 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment, and subsequently the entire back up amount was returned to the sewer system. 	None at this time	
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	897159	1.1	Certified	Daniel Whitlock	Manager		21-NOV-24	21-NOV-24	Monthly Category 3 Spill	Chatham and Bush	10/22/2024 13:19	10/22/2024 13:25	10/22/2024 13:15				In alley way of Chatham place. Flowed down bush street to catch basin at Bush and Grant St.	37.79067	-122.4064	Manhole			50	Spill came out of manhole N-13987 and flowed down into the combined system into a catch basin on Bush and Grant st.	N						50	Other (specify below); Paved Surface; Street/Curb and Gutter (2 3)	Combined system	Spilled from manhole on Chatham Place. Spill flowed down Chatham onto bush and eventually into catch basin on Bush and Grant.	Y	37.79067	-122.4064							10/22/2024 16:15	Eyeball method and eyewitness.	Eyeball method.	Debris-General; Debris-Rags; Other (specify below)	Fork caught in main sewer which casued rags and other debris to become entangled in it. The pipe was also broken which may have contributed to the spill.	Gravity Mainline		Concrete		144	No impacts to roads or traffic. 	N	Cleaned Up (specify below); Other (specify below); Restored Flow	Returned all spill to combined sewer system	Spill returned to combined sewer catch basin. Washed down alley way and spill down to bush st. catch basin.	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		CCTV WO #8599844 founds rags and fork in sewer. WO #8599844 repaired asset # P-78487 on 11/12/2024.		10/23/2024 14:00	There was a fork stuck in the sewer which caused rags and other debris to become entangled in it causing a blockage. The pipe was also broken due to PG & E installing a pipe that may have also contributed to the spill. 		None	10/23/2024 14:00														N/A	N/A	N/A	Asset P-78487 repaired on 11/12/2024. WO #8599844.	P-78487	None	None	None	None	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	897175	1.1	Certified	David Leamer	Assistant Superintendent		28-OCT-24	28-OCT-24	Monthly Category 3 Spill	348694	09/10/2024 15:13	09/10/2024 16:08	09/10/2024 15:00				See Attached Spill map with Photos.	38.53826	-121.43528	Gravity Mainline			227	See Attached Spill Map with Photos	Y	See Attached Spill Map with Photos	227				227	Drainage Conveyance System		See Attached Spill Map with Photos	Y	38.53826	-121.43528	38.53671	-121.43528					09/13/2024 18:45	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Other (specify below)	Pipe Structural Problem/Failure - Failed Joint	Gravity Mainline		Vitrified Clay		17	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		See Attached Description of Spill Event	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV; Repaired Facilities or Replaced Defect		A defective joint in the SacSewer main line caused a spill at 4000 60th Street. The SacSewer main line is located above the storm drain system underground. The SacSewer main line spilled from the main line through the ground and entered the drainage conveyance system through a defective joint in the storm drain pipe.The flow in the storm drain system was plugged at the intersection of 60th Street and 17th Ave. The City of Sacramento plugged the storm drain system at the intersection of 60th Street and 17th Ave. The City of Sacramento cleaned the storm drain line on 9/12/2024 with a hydro vacuum. On 9/13/2024, The City of Sacramento dye-tested the sewer main line and confirmed that the infiltration is the responsibility of SacSewer. 		09/13/2024 22:40	A defective joint in the SacSewer main line caused a spill at 4000 60th Street. The SacSewer main line is located above the storm drain system underground. The SacSewer main line spilled from the main line through the ground and entered the drainage conveyance system through a defective joint in the storm drain pipe.The flow in the storm drain system was plugged at the intersection of 60th Street and 17th Ave. The storm drain system was dry downstream of the plug.  The City of Sacramento first noticed the infiltration on 9/10/2024 and called SacSewer at 3:13 pm. The City of Sacramento cleaned the storm drain line on 9/12/2024 with a hydro vacuum. On 9/13/2024, The City of Sacramento dye-tested the sewer main line and confirmed that the infiltration is the responsibility of SacSewer. 		N/A	09/13/2024 22:40														N/A	SacSewer inspected mainline with CCTV on 9/10/24. Based on findings, SacSewer made repair and BCE to look at swale.	No changes to PM schedule, repair was made.	Repair was made on 9/13/24	Inspected mainline SacSewer with CCTV on 9/10/24.	N/A	Repair was made on 9/13/24	N/A	N/A	
2	2SSO10170	Active	Richmond City CS	Richmond City	897177	1.3	Certified	Mary Phelps	Water Resource Division Manager		25-NOV-24	25-NOV-24	Monthly Category 3 Spill	5135 Clinton Ave	10/20/2024 20:08	10/20/2024 20:50	10/20/2024 19:08				Spill at 5135 Clinton Ave (see attached photos).	37.94128	-122.3245	Manhole			97	See photos.	N						97	Drainage Conveyance System; Street/Curb and Gutter (2 3)		see attached pictures	Y	37.94128	-122.3245	37.94129	-122.32448	37.94133	-122.32447			10/20/2024 20:45	Spill volume calculated based on operator training and experience. Estimation based on operator training and visual observation.	Citizen interviews and estimations, end time based on time the flow stopped discharging from manhole.	Debris-Rags; Fats, Oil and Grease (FOG)		Manhole		Vitrified Clay		40	No impact, area contained and returned to POTW.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Spill completely contained and returned to POTW. Area cleaned and sanitized.	Added Sewer to Preventive Maintenance Program; Other (specify below)	Community outreach	Added line segment to Hot Spot list for increased cleaning/maintenance.		10/20/2024 22:30	Met with Operations Crew to discuss after action report, discuss adding line to Hot Spot List, and increased cleaning.		Public outreach will be provided by Environmental Compliance inspectors- FOGs & Toilet is Not a Trash Can.	10/20/2024 22:30														N/A	N/A	Increased cleaning.	N/A	N/A	N/A	Line segment added to City's Hot spot list.	No changes to response activities.	Public outreach will be provided by Environmental Compliance inspectors- FOGs & Toilet is Not a Trash Can.	
4	4SSO10390	Active	Hawaiian Gardens City CS	Hawaiian Gardens City	897181	1.2	Certified	Eric Liu	Civil Engineer	24-OCT-24	31-OCT-24	31-OCT-24	Category 1 Spill	2031-0276 (22421 Seine Avenue, Hawaiian Gardens)	10/19/2024 17:38	10/19/2024 19:10	10/19/2024 17:25				CSMD Map Sheet No. 2031 Manhole No. 276 MMS No. 9140475 Manhole No. 276 was up with sewage, but not overflowing.	33.82423	-118.07844	Manhole			50	Upon arrival, manhole 276 was filled with sewage but was not actively overflowing. There were signs of an overflow. A portion of the spill entered the storm drain at 22421 Seine Avenue. The rest of the sewage discharge was recovered. 	Y	A portion of the spill entered the storm drain at 22421 Seine Avenue. 	0	25	A portion of the spill entered the storm drain at 22421 Seine Avenue, which leads to the city drainage system, BI 0021-Line C-Artesia Norwalk, Coyote Creek, and the San Gabriel River. 	25	25	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Upon arrival, manhole 276 was filled with sewage but was not actively overflowing. There were signs of an overflow. A portion of the spill entered the storm drain at 22421 Seine Avenue, which leads to the city drainage system, BI 0021-Line C-Artesia Norwalk, Coyote Creek, and the San Gabriel River. The rest of the sewage discharge was recovered. 	Y	33.82432	118.07869							10/19/2024 19:15	CWEA SSCSC Manhole Gauge	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops. 	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		65	No impact.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow		Arrived at 22421 Seine Avenue, where manhole 276 was filled with sewage but not overflowing. There were signs of an overflow. Set up the vacuum truck for wash and containment at the storm drain at 22421 Seine Avenue. Used hydro jet equipment to break down a heavy grease blockage in the mainline. Proceeded with washing down and vacuuming sewage on Seine Avenue. Notified all required agencies and complainant. 	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Inspected sewer using CCTV and added sewer to 120-day hydro periodic. 	120-day hydro periodic. 	10/19/2024 21:20	Grease	N			Coyote Creek - San Gabriel River	River; Stream/Creek		Coyote Creek - San Gabriel River	No impacts. 	Other (specify below)	No impact.	N/A	0	N	N												
2	2SSO11610	Active	Airport Industrial Wastewater CS	San Francisco City & County Airport Commision-Design & Construction	897190	1.1	Certified	Jennifer Acton	Director of Maintenance		29-OCT-24	29-OCT-24	Monthly Category 3 Spill	IW-X Pump Station	09/07/2024 08:30	09/07/2024 08:30	09/07/2024 08:15				Spill appeared from IW-X industrial wastewater pump station wet well and one adjacent industrial wastewater sewer manhole.	37.631249	-122.394533	Manhole; Pump Station	Spill appeared from IW-X industrial wastewater pump station wet well and one adjacent industrial wastewater sewer manhole.  This wastewater entering IW-X pump station is water that has already been pretreated though an Airport Tenant's treatment plant and subsequently is pumped to the Airport's Industrial Plant for processing.		350	Wastewater overflowed from the pump station wet well and ponded around the pump station.  Some wastewater flowed southwest down gradient towards a storm drain catch basin.	Y	Storm drain catch basin.  Airport's storm drain system was in dry weather mode.  Water that enters the Airport's storm drain catch basin in dry weather mode gets diverted to the Airport's sewer system storage basin, then pumped through the Airport's industrial wastewater treatment plant for processing.	157				350	Drainage Conveyance System; Paved Surface		Wastewater overflowed from the pump station wet well and manhole and ponded around the pump station.  Some wastewater flowed southwest down gradient towards a storm drain catch basin.	Y	37.631359	-122.394523	37.631226	-122.394433	37.631016	-122.394863	37.631036	-122.3948981	09/07/2024 09:00	Spill volume was calculated using information and photos provided by responding Airport personnel.  Field measurements were collected using incident photos as a reference to perform area/volume calculations.	Spill times were estimated using information provided by responding Airport personnel.	Operator Error (specify below)	Pump station control panel power switch was temporarily turned off while contractor was working at the pump station.  Pump control panel power switch was not manually returned to the auto mode of operation position after contractors were finished working at the pump station.	Pump Station - Controls		Other (specify below)	NA.  Overflow involved pump station controls, not a section of pipe.	0	Spill impacted the paved ground surface around the pump station and adjacent taxiway.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow	Returned all spill to the Airport's industrial sewer system	Airport Airfield Operations, Airport Treatment Plant Operator, Airport Plumbers, and Airport Spill Team responded to the incident.  Pump station controls corrected and power was restored to the pump station pump.  Wastewater receded into the pump station wet well.  Treatment Plant Operator used floor squeegee to push ponded water back into pump station wet well.  Airport Plumbers used a vactor truck to vacuum up ponded wastewater on the paved surface.  Airport's storm drain system was in dry weather mode.  Water that enters the Airport's storm drain catch basin in dry weather mode gets diverted to the Airport's sewer system storage basin, then pumped through the Airport's industrial wastewater treatment plant for processing.	Repaired Facilities or Replaced Defect		NA		09/07/2024 09:30	Investigation determined the overflow/spill was a result of the control panel power switch to the pump station was not manually returned to the auto mode of operation position after contractors were finished working at the pump station.		NA	09/11/2024 16:00														NA	NA	NA	NA	NA	NA	NA	NA	NA	
3	3SSO11609	Active	Pacific Grove City CS	Pacific Grove City	897197	1.2	Certified	Daniel Gho	Director		25-OCT-24	25-OCT-24	Monthly Category 3 Spill	Pine Ave. and 11th Street	10/21/2024 20:42	10/21/2024 21:10	10/21/2024 20:42				Coming out of a manhole	36.61762	-121.91451	Manhole			150	Roadway	N						125	Other (specify below)	Combined storm and sewer system	The spill was coming out of a manhole and onto the street.  The spill flowed into a storm drain that is combined Storm and sewer										10/21/2024 21:25	Visual evaluation	Time of notification	Debris-Rags; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		70	No impact	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned Portion of Spill to Sanitary Sewer System		Unblocked the main line. and performed cleanup and bleach spray down	Post Spill CCTV		The City will perform a post spill CCTV 		10/21/2024 21:25	grease and rags		CCTV	11/15/2024 15:01														N/A	n/a	n/a	n/a	n/a	n/a	n/a	n/a	CCTV	
2	2SSO10179	Active	San Jose City CS	San Jose City	897201	1.2	Certified	Ben Nguyen	Senior Engineer	25-OCT-24	06-NOV-24	06-NOV-24	Category 2 Spill	994 Dorel Drive	10/22/2024 12:42	10/22/2024 13:02	10/17/2024 17:43				Spill occurred on an public utility easement on a vacant lot. The nearest address is 949 Dorel Drive, San Jose, CA. 	37.39788	-121.82905	Gravity Mainline			50498	Spill originates from a sanitary MH, located in public utility easement on a vacant lot of land.  Water discharged out of the manhole and soaked to the ground which was mostly covered with dry grass and vegetation.  The spill did not reached any storm drain system or water body. 	N						0	Unpaved Surface		The spill occurred on a system which is in an easement on a vacant undeveloped lot of land.  Water flowed out of the MH and saturated to the ground which is covered w/ dry grass and weed.  There is no storm drain system near by.  There is a creek nearby but water did reach the creek.  The creek is also dry at the time of responding to the spill event. 	Y	37.40075	-121.82983							10/22/2024 16:00	Volume was estimated by using the diurnal pattern w/ an estimation that the event approximately started five days prior to discovery.  The diurnal pattern was applied because the system is directed down stream of small group of single family homes.  RP did not know or have information of the start time. 	Since the vacant lot is not accessible to the public, most of the start time was assumed based on past event and field condition at the time of the crew responded to the event.  	Pipe Structural Problem/Failure - Installation		Gravity Mainline		Other (specify below)	High Density Polyethylene	14	There is no direct impact to the public.  The spill saturated to the ground which is covered with grass and dry vegetable. The area doesn't appears to be commonly accessible by the public. 	N	Cleaned Up (specify below); Restored Flow	Repair of the collapse segment. 	Install temporary overland diversion system  Repair the collapsed pipe with open cut method Posted Raw Sewage signs along the easement. 	Other (specify below); Post Spill CCTV; Repaired Facilities or Replaced Defect	Staff will discuss long-term solution with Dept of Public Work.	Staff performed repair the collapsed pipe immediately after the respond Staff will discuss w/ Department of Public Works of a long-term solution. 	Staff will discuss w/ Department of Public Works of a long-term solution. 	10/23/2024 14:00	Investigate and make assumption for start date. 	N												N													
2	2SSO10176	Active	San Bruno City CS	San Bruno City	897202	1.1	Certified	Philip Woffenden	Wastewater Services Manager		25-OCT-24	25-OCT-24	Monthly Category 3 Spill	1361 Peachwood Drive San Bruno, California 94066	09/28/2024 12:03	09/28/2024 12:49	09/28/2024 12:03				Debris dislodged by private plumbers caused blockage on the outgoing pipe of City's Manhole. Main lines have been recently maintained and on a PM program.	37.62662	-122.42157	Manhole	N/A	N/A	134	Spill was on the street and flowed into near by Drain Inlet. Total spill was estimated to travel approximately 535' in the drainage conveyance system and was apprehended approximately 1,470' down stream. Total spill volume was captured with a combination vacuum truck in a storm drain manhole approximately 1,470' down stream of drain inlet where spill has entered.   See Attachment 	Y	Drainage conveyance system is a reinforced concrete pipe that is estimated to be 24  in diameter.  See Attachment	134				134	Drainage Conveyance System	N/A	Spill estimated to travel 535' in drainage conveyance system downstream of drain inlet where spill has entered.  See Attachment 	N									09/28/2024 13:10	San Diego Chart was used to estimate the volume coming out of manhole (2GPM) Multiplied by 67 minutes equals to 134 gallons.   See Attachment 	Spill start time was 12:03 reported by resident that has seen the spill and spill end time was when blockage was cleared at 13:10.	Debris from Lateral; Other (specify below)	Debris believed to be dislodged by private plumber maintaining private property lateral	Manhole	N/A	Vitrified Clay	N/A	40	Spill had no impact.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System	N/A	Two combination vacuum/jetter trucks where used to flush the sewer lines   to restore flow and also flushed and vacuum drainage conveyance system to fully recover spill.  See Attacment 	Other (specify below)	Main line is currently on regular Preventive Maintenance Program	N/A		09/28/2024 14:30	Cause of spill was an assumption by a combination of past experience and the confidence in the City's sewer system due to continuous Preventive Maintenance efforts and CCTV. 		N/A	09/28/2024 14:30														N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	897212	1.1	Certified	Kent Vian	Asst. Deputy Director		15-NOV-24	15-NOV-24	Monthly Category 3 Spill	NOT-40201167052 3405 Rosa Linda St	10/26/2024 09:05	10/26/2024 10:00	10/26/2024 09:05				THE SPILL ORIGINATED FROM LATERAL#10909731. THE COORDINATES ARE 32.57261-117.05786 TRAVELED DOWN NORTHWEST FROM THE DRIVEWAY TO THE SIDEWALK INTO THE CURB AND ENTERED THE STORM DRAIN.	32.57261	-117.05786	Force Main; Gravity Mainline; Lateral Clean Out (Public)	N/A	N/A	325	THE SPILL BOUNDARIES WERE THE LATERAL CLEAN-OUT, THEN TRAVEL DOWN NORTH-WEST TO THE DRIVEWAY INTO THE CURB INTO THE STREET AND ENTERED THE STORM DRAIN.	Y	THE STORM DRAIN SYSTEM WITH THE SPILL TRAVELED HAS A DIAMETER OF 54  AND IS MADE OF CMP MATERIAL.	280				280	Drainage Conveyance System; Street/Curb and Gutter (2 3)	N/A	THE SPILL TRAVELED DOWN THE DRIVEWAY, SIDEWALK, CURB, STREET, AND STORM DRAIN GPS COORDINATES ARE 32.57261-117.05786.	Y	32.57263	-117.05787							10/26/2024 10:10	THE ESTIMATION IS CALCULATED BY VISUAL METHOD.	THE START TIME IS WHEN THE DISPATCH RECEIVES THE CALL FROM THE CONSUMER REPORTING THE SPILL.	Fats, Oil and Grease (FOG)	N/A	Gravity Mainline; Lower Lateral	N/A	Vitrified Clay	N/A	57	THE SPILL IMPACT WAS TO THE DRIVEWAY, SIDEWALK, CURB, STREET AND ENTERED THE STORM DRAIN.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	CREWS RESPONDED, INVESTIGATED, CONTAINED, RELIVED, TRACKED DOWN THE FINAL DESTINATION, RETURNED THE SPILL BACK TO THE SYSTEM, AND WASHED DOWN THE AREA.  	Inspected Sewer Using CCTV to Determine Cause	N/A	Managment reviewed asset and changed schedule in the system also notified private property owners vis door hangers.  		10/26/2024 12:30	THE CAUSE OF THE SPILL WAS GREASE FROM PRIVATE LATERALS, HOMEOWNER IN AREA ARE JETTING LATERALS FOR GREASE STOPPAGE.		NOT AT THIS TIME.	10/27/2024 10:30														N/A	Grease from lateral pushed in from private plumbers. 	Yes, modifications done to schedule. 	Yes, under CIP# B-24051	Not at this time	Cip# B-24051 start date 5/5/2027	See Attached 	See above	NOT AT THIS TIME.	
5R	5SSO10806	Active	Cottonwood CS	Shasta CSA #17	897217	1.2	Certified	scott sealander	utilities operations superintendent	28-OCT-24	28-OCT-24	28-OCT-24	Category 1 Spill	21477 Black Ln Cottonwood Ca, 96022	10/24/2024 10:50	10/24/2024 10:50	10/24/2024 10:40	10/24/2024 14:45	24-6016		Spill occurred October 24th when contractor plugged in pipe threader to control box outlet causing pump station to lose power to the pumps. The pump station was down for approximately 12 hours before being discovered.  Wet well and collection system contained spill before about estimated 900 Gallons spilled from a Manhole in road next to pumpstation.  	40.38926	-122.25599	Manhole	N\A	N\A	900	Spill occurred at a low-lying manhole in the street (Black Ln) in cottonwood ca spill ran off the South side of the road into the adjacent property to a drainage ditch that i believe flow into Cottonwood creek	Y	see photo	900	900	see photo	300	0	Drainage Conveyance System that discharges to surface water		spill generated from low lying manhole next to lift station.  spill ran along side of road before going over bank to drainage conveyance system	Y	40.38924	-122.25598							10/24/2024 11:10	spill was estimated by volume of spill coming out of manhole	N/A	Pump Station Failure - Controls	N\A	Manhole	N\A	Other (specify below)	spill occurred at a low-lying manhole next to pump station	38	spill occurred at a manhole in the road next to pump station spill ran off road to the edge of the road before soaking into the ground over the banmk	N	Cleaned Up (specify below)	not much cleanup was required due to the spill being very diluted.  We have a groundwater influence from the ACID canal 	a chlorine solution was applied to the affected area	Other (specify below)	contractor used pump station receptacle the tripped off pump station	receptacle not to be used for the duration of the project	pump station is currently being upgraded to new controls, new generator and lift station upgrades	10/24/2024 15:00	cause of spill was due to contractor using receptacle at control box.  Contractor plugged in pipe threader to receptacle and the pump station tripped off.  The pump station was off for about 12 hours before operator found the station offline.  Electrician was called to help troubleshoot the cause of the failure	N	N\A		cottonwood creek	Stream/Creek	N\A	Drainage ditch	None observed	Other (specify below)	No public closure was initiated spill volume was a small amount	N/A	0	N	N	N\A	N\A									N\A	
5S	5SSO11482	Active	Lincoln Village Maintenance District CS	San Joaquin Cnty DPW	897219	1.2	Certified	Ben Guzman	Superintendent		28-OCT-24	28-OCT-24	Monthly Category 3 Spill	6322 Herndon Place	09/16/2024 15:13	09/16/2024 15:45	09/16/2024 15:10				Manhole in front of 6322 Herndon Place	38.002	-121.35611	Gravity Mainline			160	Area around manhole to gutter and approximately 125' north to catch basin.	Y	Storm system catch basin.	80				160	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Area around manhole to gutter and approximately 125' north to catch basin.	N									05/08/2024 19:00	SSMP Element 6 - SSO Emergency Response Procedure	SSMP	Debris-General; Root Intrusion		Gravity Mainline		Vitrified Clay		65	Minimal to no impact. Area cleaned.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Catch basin blocked upon arrival SSO ended at 15:50. Obstruction cleared from main. Area around manhole, effected gutter length, and catch basin were vacuum cleaned and returned to the sanitary.	Added Sewer to Preventive Maintenance Program		Clean the associated portion of main line and video inspect.		09/16/2024 18:30	Blockage in gravity main line. Investigating to determine cause of blockage.		Video inspection to determine if repairs are needed.	12/31/2024 16:00														N/A	Location of obstruction discussed for adding to Hot Spot list for increased preventive maintenance activity.	Location of obstruction discussed for adding to Hot Spot list for increased preventive maintenance activity.	Determination to be made after inspection.	Planned inspection by 12/31/2024	When funds are available.	Location of obstruction discussed for adding to Hot Spot list for increased preventive maintenance activity.	Review of SSMP Element 6 - SSO Emergency Response regarding photos.	Video inspection to determine if repairs are needed.	
5S	5SSO10901	Active	City of Sacramento Utilities CS	Sacramento City	897231	1.1	Certified	Kevin Guerra	Superintendent		29-OCT-24	29-OCT-24	Monthly Category 3 Spill	7510 24th Street Sacramento, Ca. 95822	09/02/2024 17:44	09/02/2024 18:20	09/22/2024 17:00				The spill appeared from a manhole located in the street, on the south side of this address.	38.48591	-121.48092	Manhole			360	The spill appeared and was trapped in the street and in the a portion of the conveyance system.	Y	The conveyance system is gravity fed until it enters a sump station several miles away. That Sump station discharges to the Sacramento River.	360				360	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		The spill appeared at a manhole in the street and traveled West to the gutter pan. It then traveled North to a gutter drain where it entered the conveyance system, once in the system it was trapped in the drainage main it had entered and recovered from a manhole to the South.	Y	38.48471	-121.48001							09/02/2024 19:00	The spill volume was calculated using pictures from the city of Sacramento Manhole overflow gauge to get the GPM's. And multiplied this by the total time in minutes from the estimated start until the time the spill was stopped.	The witness gave an estimated start time and we used the time the responder relieved the plugged main as the stop time.	Fats, Oil and Grease (FOG); Pipe Structural Problem/Failure - Installation		Gravity Mainline		Vitrified Clay		67	The sill did not impact service or the environment.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		The responder wasn't able to contain the active spill so they chose to get  the main unplugged as soon as possible. The spill on the surface was washed down and the portion in the conveyance system was flushed to a Jet/Vacuum truck, where it was collected and returned to the sewer system.	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		The main and mains downstream have been cleaned and will continue to be on a frequent cleaning cycle.		09/02/2024 21:15	The main segment was on a cycled work order and had been removed recently by mistake. The main has a change in direction downstream that affects flows and requires a cleanings on a regular schedule.		No	09/04/2024 15:07														N/A	N/A	We have added this main segment to a 90 day cycled maintenance work order to make sure it is cleaned on an appropriate schedule. 	N/A	N/A	N/A	N/A	N/A	No	
5S	5SSO11061	Active	Sutter Creek CS	Sutter Creek City	897242	1.2	Certified	Daniel Lafontaine	Public Works Director		29-OCT-24	29-OCT-24	Monthly Category 3 Spill	57 Boston Alley	10/28/2024 13:52	10/28/2024 14:30	10/28/2024 11:00				Sewage leaked out into yard around grass from cleanout in front of 57 Boston Alley	38.39409	-120.80267	Lateral Clean Out (Private)			75	There is a ditch around the grass lawn contained by a rock wall that the sewage was routed to and at the exit point there was a floor matt that stopped the flow mostly. 	N						50	Unpaved Surface		The spill was contained in the ditch around the grass and the floor mat at the low point exit.										10/28/2024 15:45	Volume of the ditch 	Field verification of the operators about how much volume seemed to spill.  Estimate was 50 to 75 gallons so we took the high volume estimation.	Root Intrusion		Lower Lateral		Other (specify below)	Orangebird	100	None	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified		Used an eel to rout the line clean.	Added Sewer to Preventive Maintenance Program		This is a known area with lots of root intrusion.  We typically clear this yearly.  Will be added to the CIP for replacement.		10/28/2024 15:00	Line is old and has many roots in line.  Need to clear yearly until line can be replaced.		None	10/29/2024 11:00														None	None, informed home owners to only flush appropriate waste	Added to yearly PM task.	On CIP will address when money is available.	None	Replacement of line is needed.	None	None	None	
8	8SSO10630	Active	UC Irvine CS	UC Irvine	897245	1.1	Amended	Eric Hoang	Environmental Compliance Manager		29-OCT-24	29-OCT-24	Category 1 Spill	Los Trancos Construction Site	10/29/2024 09:45	10/29/2024 10:00	10/28/2024 16:00	10/29/2024 11:26	24-6104		A sanitary sewer pipe at the construction site at 2003 Los Trancos Drive, Irvine, CA 92617, was clogged with soil, causing an overflow.	33.6409371	-117.8404498	Manhole			29250	Sewage overflow ponded within the construction site, with approximately 2,250 gallons leaving the site and entering a storm drain on the street. The drainage system discharges into San Diego Creek. Attached are the pictures for reference.	Y	Sewage overflow ponded within the construction site, with approximately 2,250 gallons leaving the site and entering a storm drain on the street. The drainage system discharges into San Diego Creek. Attached are the pictures for reference.	0	0	The drainage system discharges into San Diego Creek. Attached are the pictures for reference.	5250	2000	Drainage Conveyance System that discharges to surface water		A sanitary sewer pipe at the construction site at 2003 Los Trancos Drive, Irvine, CA 92617, was clogged with soil causing an overflow. The overflow originated at GPS coordinates 33.6409371, -117.8404498. Approximately 5,250 gallons was discharged into San Diego Creek.	Y	33.6409371	-117.8404498							10/29/2024 11:42	A visual observation of the overflow estimated a flow rate of 25 gallons per minute. We calculated the estimated start and stop times, as well as when the overflow entered the storm drain.	We used the City of San Diego Metropolitan Wastewater Department's reference sheet for estimating sewer spills from overflowing manholes.	Debris from Construction		Manhole		Vitrified Clay		0	A sanitary sewer pipe at the construction site at 2003 Los Trancos Drive, Irvine, CA 92617, was clogged with soil causing an overflow. The overflow originated at GPS coordinates 33.6409371, -117.8404498. Approximately 5,250 gallons was discharged into San Diego Creek.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow	Flow was restored to the pipe by clearing construction debris, and contained ponded sewage on-site was vacuumed. Regulatory and local agencies have been notified.	Flow was restored to the pipe by clearing construction debris, and contained ponded sewage on-site was vacuumed. Regulatory and local agencies have been notified.	Other (specify below)	We are requiring frequent visual inspections of sewer manholes throughout the construction area.	We are requiring frequent visual inspections of sewer manholes throughout the construction area.	The construction debris was removed from the pipe, restoring normal flow. Ponded sewage was vacuumed.	10/29/2024 14:00	A sanitary sewer pipe at the construction site at 2003 Los Trancos Drive, Irvine, CA 92617, was clogged with soil causing an overflow. The overflow originated at GPS coordinates 33.6409371, -117.8404498. Approximately 5,250 gallons was discharged into San Diego Creek.	N			San Diego Creek	Stream/Creek		San Diego Creek located North of UC Irvine Campus.	None observed.	Other (specify below)	None	Orange County Health Care Agency Water Quality Section	0	N	N												
8	8SSO10630	Active	UC Irvine CS	UC Irvine	897245	2.2	Certified	Eric Hoang	Environmental Compliance Manager		05-NOV-24	05-NOV-24	Category 1 Spill	Los Trancos Construction Site	10/29/2024 09:45	10/29/2024 10:00	10/28/2024 16:00	10/29/2024 11:26	24-6104		A sanitary sewer pipe at the construction site at 2003 Los Trancos Drive, Irvine, CA 92617, was clogged with soil, causing an overflow.	33.6409371	-117.8404498	Manhole			29250	Sewage overflow ponded within the construction site, with approximately 5,250 gallons leaving the site and entering a storm drain on the street. The drainage system discharges into San Diego Creek. Attached are the pictures for reference.	Y	Sewage overflow ponded within the construction site, with approximately 5,250 gallons leaving the site and entering a storm drain on the street. The drainage system discharges into San Diego Creek. Attached are the pictures for reference.	0	0	The drainage system discharges into San Diego Creek. Attached are the pictures for reference.	5250	2000	Drainage Conveyance System that discharges to surface water		A sanitary sewer pipe at the construction site at 2003 Los Trancos Drive, Irvine, CA 92617, was clogged with soil causing an overflow. The overflow originated at GPS coordinates 33.6409371, -117.8404498. Approximately 5,250 gallons was discharged into San Diego Creek.	Y	33.6409371	-117.8404498							10/29/2024 11:42	A visual observation of the overflow estimated a flow rate of 25 gallons per minute. We calculated the estimated start and stop times, as well as when the overflow entered the storm drain.	We used the City of San Diego Metropolitan Wastewater Department's reference sheet for estimating sewer spills from overflowing manholes.	Debris from Construction		Manhole		Vitrified Clay		0	A sanitary sewer pipe at the construction site at 2003 Los Trancos Drive, Irvine, CA 92617, was clogged with soil causing an overflow. The overflow originated at GPS coordinates 33.6409371, -117.8404498. Approximately 5,250 gallons was discharged into San Diego Creek.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow	Flow was restored to the pipe by clearing construction debris, and contained ponded sewage on-site was vacuumed. Regulatory and local agencies have been notified.	Flow was restored to the pipe by clearing construction debris, and contained ponded sewage on-site was vacuumed. Regulatory and local agencies have been notified.	Other (specify below)	We are requiring frequent visual inspections of sewer manholes throughout the construction area.	We are requiring frequent visual inspections of sewer manholes throughout the construction area.	The construction debris was removed from the pipe, restoring normal flow. Ponded sewage was vacuumed.	10/29/2024 14:00	A sanitary sewer pipe at the construction site at 2003 Los Trancos Drive, Irvine, CA 92617, was clogged with soil causing an overflow. The overflow originated at GPS coordinates 33.6409371, -117.8404498. Approximately 5,250 gallons was discharged into San Diego Creek.	N			San Diego Creek	Stream/Creek		San Diego Creek located North of UC Irvine Campus.	None observed.	Other (specify below)	None	Orange County Health Care Agency Water Quality Section	0	N	N												
8	8SSO10636	Active	Colton Water Reclamation Facility CS	Colton City	897248	1.3	Ready to Certify			29-OCT-24			Category 1 Spill	2851 Cadena Dr. 	10/29/2024 08:30	10/29/2024 08:30	10/29/2024 08:30				34.02194        -117.34072	34.02194	-117.34072	Pump Station			20	Lift station lost power.	Y	curb/gutter to open dry creek that leads to Santa Ana River	10	0	none	0	10	Other (specify below); Street/Curb and Gutter (2 3)	dry creek 	dry creek leading to santa river	Y	34.04312	-117.3316							10/29/2024 08:45	visual estimation	visual	Pump Station Failure - Power		Manhole; Pump Station - Power		Vitrified Clay		40	curb and gutter , reached dry creek leading to santa ana river	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		operator called vactor truck to respond to location, he build sand chevrons and vacuumedup portion of sso. 	Other (specify below)	electric dept. got power back up in service	powewr back on by electric dept. and will be installing a generator at this lift station	in process	10/29/2024 10:00	power outage	N			Santa Ana River 	Wash		river bed wash	none	Other (specify below)	none	none	0	N	N												
2	2SSO10665	Active	Westborough CS	Westborough Water District	897250	1.1	Certified	Patricia Mairena	General Manager		31-OCT-24	31-OCT-24	Monthly Category 3 Spill	2233 Gellert Boulevard, South San Francisco, CA 94080	10/16/2024 11:00	10/16/2024 11:01	10/16/2024 11:00				Coming out of private lateral cleanout. See attached photographs.	37.649768	122.453325	Lateral Clean Out (Private)	Coming from cleanout in garbage cans area.		50	Coming out of a private lateral.  See attached photographs.	Y	Catch basin used to recover.  Spill did not exit catch basin.	20				50	Drainage Conveyance System; Paved Surface		Catch basin and ground surface.	Y	37.64674	122.453456							10/16/2024 11:03	Eyeball estimation utilizing the 5 gallon bucket spill training.	On site servicing sewer main.	Fats, Oil and Grease (FOG); Operator Error (specify below)	Flushing downstream to upstream caused a burp in line out of the cleanout.	Gravity Mainline		Polyvinyl Chloride (PVC)		3	Ground area around garbage cans storage. Surface ground area.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		When spill happened, flushing crew set up near area; vac out waste and debris; set up near storm drain; vac around area and from downstream of catch basin; flushed and vac storm drain; recovered all.	Added Sewer to Preventive Maintenance Program; Enforcement action against Fats, Oil, and Grease (FOG) source		Added sewer to Preventive Maintenance Program. Enforcement action against FOG source.		10/16/2024 11:23	Televising sewer main and lateral. Checked for defective pipe, grease and debris.		TV main line and lateral.	10/16/2024 11:23														Still under investigation.	Added sewer to Preventive Maintenance Program.	Yes	No	Inspected.	N.A.	N.A.	N.A.	TV main line and lateral.	
2	2SSO10168	Active	Redwood City CS	Redwood City	897252	1.1	Certified	Robin Kim	Public Works Superintendent		30-OCT-24	30-OCT-24	Monthly Category 3 Spill	250 Redwood Shores Pkwy	09/12/2024 13:15	09/12/2024 13:33	09/12/2024 12:50				Spill originated out of a sewer manhole located near 250 Redwood Shores Pkwy, Redwood City. The manhole is situated in the right turn lane when exiting a shopping complex parking lot that turns onto Redwood Shores Parkway. See attached photos.	37.521694472658	-122.252583049024	Manhole			93	See markup with pink highlight of spill boundaries. The spill exited a sewer manhole and ran along the curb and gutter into a storm inlet about 70 feet away.	Y	The storm inlet has a well measuring 48  x 30  x 24  (capacity of about 150 gallons). Estimate spill volume at 83 gallons based on the total spill volume minus the amount of spill on the curb and gutter.	83				93	Drainage Conveyance System; Street/Curb and Gutter (2 3)		The spill went into a storm inlet located at (37.521789582019984, -122.25278304199016). Once a pig blanket was put down over the inlet, the spill continued just past the inlet to (37.5217927729974, -122.25279175916937).	Y	37.521792772997	-122.252791759169							09/12/2024 14:23	Photos show a small spill rate, which corroborate different City staff accounts. The Parks Lead Maintenance Worker who notified Public Works indicated that sewage was  bubbling  out of the manhole and estimated the spill rate to be 1 gallon per minute; this is inline with photos taken at the time Public Works Wastewater staff arrived as well.	The Parks Lead Maintenance Worker spent a few minutes talking with workers from a nearby office building who were complaining of a sewage smell around 1pm. He walked around the area to investigate and found the spill at the sewer manhole, and estimated the spill rate at 1 gallon per minute based on his experience irrigating landscape. He believed the spill had been occurring for a long period of time, but no more than 30 minutes. From this account, we estimate the spill start time to be 25 minutes before his call to Public Works which occurred at 1:15pm. Spill end time was clocked at 2:23pm after crews flushed the downstream manhole and cleared the sewer main blockage.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		40	The spill was limited to the part of the street between the manhole and curb, the curb and gutter, and the well of the storm inlet.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		A pig blanket was placed over the storm inlet opening to mitigate spill continuing to enter the well. The spill rate was slow, so the spill continued minimally over the pig blanket and along the curb and gutter. A vaccon vehicle flushed at the downstream manhole to clear the sewer main blockage. A vactor vehicle vaccuumed up the spill from the storm inlet well. Staff sprayed disinfectant on the street and gutter and vactored everything up.	Other (specify below)	On 9/13/24 Wastewater staff poured an enzyme-based grease pre-digester in the downstream manhole and the spill source manhole. A couple weeks later on 10/1/24 Wastewater staff rodded 470 ft and flushed 419 ft of the downstream pipe segments.	On 9/13/24 Wastewater staff poured an enzyme-based grease pre-digester in the downstream manhole and the spill source manhole. A couple weeks later on 10/1/24 Wastewater staff rodded 470ft and flushed 419ft of the downstream pipe segments. Staff found that the grease pre-digester was effective, and we will be using this more when dealing with FOG.		09/12/2024 15:30	The shopping complex has many restaurants that can contribute to the FOG in the sewer main. Staff reports it did not take long to clear the sewer main blockage on the day of the spill, although they saw and smelled grease. The following day 9/13/24 when grease pre-digester was poured into two manholes, staff again noticed grease. A couple weeks later on 10/1/24 staff who were rodding the downstream lines reported the grease pre-digester was very effective.		No ongoing investigation efforts needed.	09/12/2024 15:30														Not applicable.	We used a grease pre-digester which was found to be highly effective when staff went back out a couple weeks later to continue maintenance with rodding and flushing of the downstream lines.	We will use grease pre-digester as needed.	Not applicable.	Not applicable.	Not applicable.	See rodding and jetting work orders for maintenance work done on downstream pipe segments from spill.	No changes needed.	No ongoing investigation efforts needed.	
4	4SSO10479	Active	Oxnard CS	Oxnard City Wastewater Division	897253	1.3	Ready to Certify			29-OCT-24			Category 1 Spill	4811 Justin Way	10/29/2024 08:00	10/29/2024 08:15	10/29/2024 07:56	10/29/2024 11:15	24-6102		Manhole pichole in front of address 4811 Justine way	34.0925	119.1004	Manhole			104	Travel down the gutter Approx 500 ft to a catch basin 	Y	Catch basin of Justin way 	0	104	Catch basin 	104	0	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Catch basin approx 600 down the street	Y	34.1571	-119.168							10/29/2024 08:20	Use Collection System Collaborative Benchmarking Group. 	7/8  pick hole measured inches coming out of the pick hole. 	Other (specify below)	Calcium build-up due infiltration	Manhole		Vitrified Clay		52	No impacts due to spill	N	Cleaned Up (specify below)		Washed down and vacuumed up the affected area. 	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Chipped out calcium build-up in manhole. Putting manhole on schedule to be rehabed	Not Yet	10/29/2024 08:30	We found calcium deposit in the manhole caused the overflow	N			Ormond lagoon waterway	Ocean; Other (specify below)	Storm channel that leads to ocean 	Pacific Ocean	None Drainage channel has very little flow in it. 	Other (specify below)	None 	None 	0	N	N												
3	3SSO10314	Active	Salinas City CS	Salinas City	897259	1.1	Certified	Gary Gabriel	Wastewater Manager		30-OCT-24	30-OCT-24	Monthly Category 3 Spill	1275 Cherokee Drive Salinas CA 90907	09/13/2024 08:32	09/13/2024 08:46	09/13/2024 06:45				Spill originated from City owned manhole in back of quadplex housing at 1275 Cherokee Drive. *See Attachment Photo of manhole overflow in small patio area.	36.69951	-121.66429	Manhole			269	Spill originated from City manhole in back on patio of quadplex at 1275 Cherokee Dr. along fence line adjacent to Hwy 101 unpaved surface area. *See Attachment Extent of spill path map and pictures	N						0	Unpaved Surface		Spill originated from City manhole and discharged under fence line out into unpaved dirt area along Hwy 101. *See Attachment Extent of spill path map	Y	36.69949	-121.66431	36.69957	-121.66436					09/13/2024 09:39	Pick and vent hole estimation chart was used to estimate discharge along with date and time determination worksheet and eye witness statement *See Attachment Spill Estimations-Time Determination Photos	City of Salinas Date/Time Determinations Worksheet. *See Attachment Date/Time Determination Worksheet 	Debris from Lateral; Debris-wipes/Non-disposables		Gravity Mainline; Manhole		Vitrified Clay		50	Spill impacted back concrete patio area moving under fence along Hwy 101 into unpaved dirt area. *See Attachment Photos of Impacted Area	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow		City Staff responded to site with multiple trucks. One Vac-Con vacuum jetter truck and one hydro jetter camera combo truck. The Vac-Con truck was setup on system removing plug from gravity mainline stopping discharge and restoring flow. Access of discharge manhole was limited to walk in only. Staff sanitized and washed down paved area in back of quadplex patio area. All  discharge area was washed using available garden hose.  Wash water was not captured due to location. Wash water and discharge washed out to unpaved dirt area. CCTV was performed on system and determined the overflow was caused to be blockage of debris wipes and condoms from local Inn. *See Attachment Spill Response Activities and Cleanup Efforts	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Adjusted Schedule and preventive maintenance increased cleaning frequency. Increased manhole inspections. Reinstallation of manhole monitor after repairs are completed. CCTV inspections performed to determine cause of blockage.		09/13/2024 10:27	City staff determined cause of spill during CCTV investigation and cleaning operations. Staff found that system was plugged by excessive debris wipes, condoms and feminine products from upstream Inn.  Staff communicated with manager at Inn regarding excessive debris items being placed into sewer system. 		None	09/13/2024 15:20														None	Increase cleaning frequency along with increase manhole hydraulic inspections.	Increased cleaning frequency along with increased manhole hydraulic inspections.	None	None	None	*See Attachment Sewer Manhole Service Maintenance Checks	None at this time City will continue to follow the (SERP)	None	
3	3SSO10252	Active	Santa Cruz City CS	Santa Cruz City	897264	1.2	Certified	Anne Hogan	Wastewater System Manager		31-OCT-24	31-OCT-24	Monthly Category 3 Spill	155 Surfside Street	10/20/2024 11:54	10/20/2024 13:05	10/20/2024 11:00				Appearance point was from private lateral located at 155 Surfside Street.	36.95853	-122.0417	Lateral Clean Out (Private)			160	Contents of spill entered a storm drain catch basin 110 feet from the appearance point on Surfside Street. Spill was contained in a 24-inch storm drainpipe. Pipeline was flushed and vacuumed.	Y	Drainage conveyance system consisted of a catch basin connected to a 1688 foot 24-inch concrete storm drain piping system.	160				160	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		Contents of spill was contained within the section of 24-inch storm drainpipe between access hole structures M4-DM603 and M4-DM616, approximately 188 feet. Pipeline was flushed and vacuumed.	Y	36.95856	-122.0413	36.95908	-122.0414					10/20/2024 13:40	Estimation of GPM being discharged from appearance point using criteria from SMART Sewer Overflow Volume Estimation Workbook. Estimation of 1 GPM X 160 minutes = 160 gallons. Contents of spill was recovered by hydro flushing and vacuuming from a dry downstream portion of pipeline.	Spill start time estimated by information provided by original reporting party. End time estimated at the time blockage was alleviated and flow from appearance point subsided. 	Debris-Rags; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		60	No environmental impact or public contact reported.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Responding on call person monitored the path of overflow and determined there was ample storage space in the catch basin. Installing a berm would have caused the spill to spread out over a larger area. Blockage was cleared and cleaning of the storm drain system, curb and gutter was performed.	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Enviromental Compliance to perform public outreach and investigate Sourses of rags and FOG. 		10/21/2024 13:45	CCTV revealed a deposit of FOG on the crown of the pipe which was catching rags and flushable wipes. 		NA	10/21/2024 13:45														NA	Enhanced cleaning with follow up CCTV to ensure effective cleaning is conducted.	90-day PM schedule	Forward to City Engineering Department and request this line segment be included in a future CIP rehabilitation project.	Pipeline cleaned and post CCTV inspection conducted.	Will be recommended for future CIP rehabilitation. 	NA	90 day enhanced cleaning schedule.	NA	
9	9SSO10655	Active	City of National City CS	National City	897265	1.2	Certified	Martha Juarez	Assistant Director of Engineering & Public Works		30-OCT-24	30-OCT-24	Monthly Category 3 Spill	100 block of E 31st St	09/03/2024 17:30	09/03/2024 18:00	09/03/2024 17:00				Cul-de-sac in the 100 block of E 31st Street	32.65626	-117.09815	Gravity Mainline			360	Immediate surroundings of manhole located in cul-de-sac	Y	Gravity main	360				360	Drainage Conveyance System; Street/Curb and Gutter (2 3)		MS4 in cul-de-sac of E 31st Street										09/03/2024 20:00	Duration/flow method, duration of spill and flow rate	Observer reported and visual/situational evidence	Debris-General; Debris-Rags		Gravity Mainline		Vitrified Clay		50	Spill made it out to street and entered MS4 in cul-de-sac but was completely recovered	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Downstream MS4 was cleaned and further downstream drains were inspected for necessary cleaning/vacuuming	Other (specify below); Post Spill CCTV	Sewer main will be televised to determine necessary modifications	Sewer main will be televised to determine necessary modifications		09/03/2024 21:30	On September 3, 2024 at 5:30pm, Public Works received a call regarding an SSO in the 100 block of E. 31st Street in the cul-de-sac.  Public Works arrived to the location at approximately 6pm and began to break the stoppage from National City Blvd at MH 1961, flushing east to MH 1874 on E. 31st Street in the cul-de-sac.  Assistance was requested with retrieving the overflow from the MS4.  Initially, the crew could not break stoppage with vactor 2100, so vactor 2100i was used.  Upon breaking stoppage and restoring flow, the crew began clean up efforts at the affected MS4 and surrounding areas.  On September 4, 2024, clean up of the downstream MS4 was performed and downstream drains were inspected for cleaning/vacuuming as well.		Sewer main CCTV	09/03/2024 21:30														Not applicable	Not yet identified	No adjustment made yet	Not yet identified	Not yet identified	Not yet determined	None available yet	None available yet	Sewer main CCTV	
2	2SSO10168	Active	Redwood City CS	Redwood City	897282	1.1	Certified	Robin Kim	Public Works Superintendent		30-OCT-24	30-OCT-24	Monthly Category 3 Spill	61 Renato Ct	09/05/2024 08:51	09/05/2024 09:10	09/05/2024 08:41				Spill had 4 appearance points: 1 cleanout at 61 Renato Ct, 2 cleanouts at 70 Renato Ct, and one manhole in front of 36 Renato Ct. The failure was a blockage in the City sewer main downstream of the manhole near 36 Renato Ct, which was the closest appearance point to the blockage. See attached photos.  All appearance points; closest proximity to failure listed first: Manhole: 37.46930864992564, -122.21344841171637 Cleanout #1 (70 Renato, right side of driveway): 37.46908646185103, -122.21373580926252 Cleanout #2 (70 Renato, left side of driveway): 37.46905182410688, -122.2137485824868 Cleanout #3 (61 Renato): 37.468949600426946, -122.21357188621766	37.469308649926	-122.213448411716	Lateral Clean Out (Private); Manhole		The manhole near 36 Renato Ct was leaking upon arrival but was too heavy to give way to much of the spill, so the backup cleared at the next exit points, which were 3 cleanouts. After the manhole, there were 2 cleanout exit points at 70 Renato Ct and another at 61 Renato Ct (across the street from each other).	810	Spill exited manhole and cleanouts and followed the curb and gutter, heading north towards El Camino Real. Spill exiting the cleanouts also covered an apron driveway at 70 Renato and part of the sidewalk and planter strip at 61 Renato. See attached map of spill boundaries. The spill on the northwest side of Renato Ct traveled about 308 feet and ended past the entrance to the parking lot of 10 Renato Ct. There is a storm inlet near El Camino but the spill did not get that far; a pig blanket covered the inlet just in case. The spill on the southeast side of Renato Ct traveled about 58 feet and stopped before the driveway to 51 Renato Ct.	N						800	Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		See spill boundary PDF for spill extent and GPS coordinates of end points along curb and gutter.	Y	37.469029479713	-122.213699416968	37.469746113927	-122.213137855922	37.469107037854	-122.213507886869	37.468972603681	-122.213612120938	09/05/2024 10:02	The reporting person who was from 68-70 Renato Ct called the City at 8:51am and said she started smelling sewage a few minutes before through an open window. It is likely she may not have been aware of the smell right away and would estimate the beginning of the spill about 10 minutes before her call (8:41am). Upon arrival, City staff saw the manhole leaking but not bubbling as the manhole cover was heavy and did not allow the sewer backup to be fully released so it exited at the next cleanouts. Photos show a high pressure exit, but City staff said the spill before blockage resolution was intermittent (due to resident usage) and no more than 5-10 gpm. (The sewer main on Renato Ct is the end of the branch so spill was limited to residential usage on that street; some of the properties are multi-family units like apartments.) Based on an estimate of a 10gpm over the course of the spill of 81 minutes, the total spill volume comes to 810 gallons.	As there were no other reports provided to the City, we are assuming a relatively small window of time when the spill began due to the high number of residents living on this street. (There are 4 apartment complexes that total over 90 units at the end of the street where the City sewer main ends.) Other assumptions include the spill rate varying over the spill range time, as City staff reported intermittent leaking and a relatively low spill rate during the time they were there, in conjunction with photos showing the initial spill from 70 Renato cleanouts being pressurized. We feel confident a 10 gpm spill rate shows a balance between the two ends of the spectrum.	Debris-General; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		71	The spill was mostly contained to the curb and gutter, but other areas impacted included areas that may have been driven through: the middle of the street around the manhole, the driveway apron of 70 Renato Ct, the planter strip in front of 61 Renato Ct that was full of wood chips, and a small area of sidewalk between 61 Renato's cleanout and the planter strip.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		A pig blanket was put down in a storm inlet in front of 10 Renato Ct that was close to El Camino Real; the spill ended up not reaching the inlet. Spill cleanup included clearing the blockage in the pipe segment by flushing at the downstream manhole, disinfecting the sidewalk and planter strip in front of 61 Renato Ct, curb and gutters on both sides of the street, and the area around the manhole in front of 36 Renato Ct. All sewer was cleaned up except for what was soaked into the wood chips in the planter strip in front of 36 Renato Ct. This area was heavily diluted with fresh water in order to minimize the amount of sewage that remained; the excess was vactored up as part of the overall cleanup.	Other (specify below)	This branch, and others along El Camino, will be jetted altogether during off-peak hours when El Camino traffic is lower. For these branches that end, they need to be done at the same time to be more efficient (by eliminating the need to return for a small branch).	We normally schedule preventative maintenance flushing for El Camino during off-peak hours (i.e. evening or weekends), and we will ensure the small branches off El Camino are completed at the same time instead of returning at a later point just to do the short sections.		09/05/2024 12:06	City staff report seeing small debris and some grease which caused a blockage in the 8  sewer main. Staff did not recommend the pipe to be rodded at this time, but we will use grease pre-digester if grease becomes a larger issue for this area.		Not applicable.	09/05/2024 12:06														Not applicable.	This branch will be included in work when we flush El Camino Real during off-peak hours.	The downstream pipe segments are located on El Camino, which we flush during off-peak hours due to the high traffic volume. We will ensure this branch continues to get flushed at the same time as the work on El Camino to reduce the need to return to this area at another time.	Not applicable.	Not applicable.	Not applicable.	See jetting work orders.	Not applicable -- Staff responded promptly, put down a pig blanket to prevent spill into a storm inlet, and disinfected/cleaned up the entire affected areas.	Not applicable.	
4	4SSO10373	Active	Burbank City, Public Works CS	Burbank City DPW	897293	1.3	Certified	Stephen Walker	Assistant Public Works Director	31-OCT-24	05-NOV-24	05-NOV-24	Category 1 Spill	Burbank Water Reclamation Plant - Tertiary Filters	10/29/2024 13:03	10/29/2024 13:05	10/29/2024 13:03	10/29/2024 15:03	24-6116	31-OCT-24	On Tuesday, October 29,2024 a spill event occurred at the Burbank Water Reclamation Plant (BWRP) located at 740 N. Lake Street, Burbank CA 91502. The incident occurred when the tertiary filter's waste wash-water basin (basin) overflowed.  It was determined that a series of filter backwashes filled the basin at a higher rate than it could be pumped back to the head of the BWRP. The spill occurred at approximate GPS coordinates: 34.18175, -118.31888. Please refer to the photos attached in the document titled  10.29.24 BWRP INITIAL PHOTOS . 	34.18175	-118.31888	Other Sewer System Structure	BWRP tertiary filter waste wash-water basin	BWRP tertiary pipe gallery (spill partially captured here)	6000	The incident occurred when the tertiary filter's waste wash-water basin (basin) overflowed, after a series of filter backwashes filled the basin at a higher rate than it could be pumped back to the head of the BWRP.  It is noted that flow into the basin includes secondary treated effluent and backwash water used to clean the tertiary filters. The overflow entered the onsite BWRP storm drains that are immediately adjacent to and flow into the Burbank Western Channel. Approximately 3,259 gallons was captured in the BWRP tertiary pipe gallery and returned to the system. For additional information, please refer to the following attached files:  DRAFT INCIDENT REPORT 10.29.24  and  10.29.24 BWRP INITIAL PHOTOS. 	Y	Part of the spill volume (2,741 gallons) entered the onsite BWRP storm drain system and flowed into the immediately adjacent Burbank Western Channel. Approximately 3,259 gallons was captured in the BWRP tertiary pipe gallery and returned to the system. Please refer to the photos attached in the document titled,  10.29.24 BWRP INITIAL PHOTOS . 	3259	2741	A portion of the spill volume entered the onsite BWRP storm drain system that flows into the immediately adjacent Burbank Western Channel. Inframark personnel promptly responded to the spill and began the inspection, sampling, and cleanup work. Inframark laboratory staff collected samples at RSW-002D and RSW-002U sites. It is noted that Inframark staff are not permitted to enter the Burbank Western Channel; therefore, the receiving water site downstream of the spill (RSW-002D) is the closest location where a sample can be collected.   For additional information, please refer to the following attached files:  DRAFT INCIDENT REPORT 10.29.24  and  10.29.24 BWRP INITIAL PHOTOS. 	2741	3259	Drainage Conveyance System that discharges to surface water; Surface Water	N/A	The incident occurred when the tertiary filter's waste wash-water basin (basin) overflowed, after a series of filter backwashes filled the basin at a higher rate than it could be pumped back to the head of the BWRP.  It is noted that flow into the basin includes secondary treated effluent and backwash water used to clean the tertiary filters. The overflow entered the onsite BWRP storm drains that are immediately adjacent to and flow into the Burbank Western Channel. Approximately 3,259 gallons was captured in the BWRP tertiary pipe gallery and returned to the system. For additional information, please refer to the following attached files:  Final Incident Report 10.29.24,   10.29.24 BWRP INITIAL PHOTOS,  and  BWRP 10.29.24 Additional Photos 	Y	34.18175	-118.31888							10/29/2024 13:09	When the basin overflowed, the backwash pump fill rate was 1,000 gpm and based on the overflow lasting approximately 6 minutes, the total volume was calculated to be 6,000 gallons. The overflow entered the onsite BWRP storm drains that are immediately adjacent to and flow into the Burbank Western Channel. Approximately 3,259 gallons was captured in the BWRP tertiary pipe gallery and returned to the system. The 3,259 gallons was calculated using the dimensions of the gallery (21 feet wide by 83 feet long, with a measured overflow depth of 3 inches). The total flow discharged to the Burbank Western Channel was then calculated using volumetric balance as follows: 6,000 gallons (total) - 3,259 gallons (recovered) = 2,741 gallons (overflow).   For additional information, please refer to the following attached files:  Final Incident Report 10.29.24,   10.29.24 BWRP INITIAL PHOTOS,  and  BWRP 10.29.24 Additional Photos 	Operational data from the plant SCADA system was utilized for the incident start time.  SCADA indicated that a backflush of the tertiary filter waste wash-water basin was necessary, however, the basin's level was near its maximum and began to overflow at 1:03 pm. The backwash pump process was then manually aborted by staff to stop any further flow going into the basin. The overflow ceased at 1:09 pm (visually confirmed by operations staff), and the pumps caught up sending flows back to the head of the BWRP.  The pump fill rate was 1,000 GPM and the overflow lasted 6 minutes, which resulted in a total volume of 6,000 gallons. The 3,259 gallons captured onsite was calculated using the dimensions of and measured spill depth in the tertiary pipe gallery. The total flow that entered the BWRP storm drains and was discharged to the Burbank Western Channel was then calculated using volumetric balance as follows: 6,000 gallons (total) - 3,259 gallons (recovered) = 2,741 gallons (overflow). 	Operator Error (specify below); Other (specify below)	Operational data on SCADA indicated that a backflush of the tertiary filter waste wash-water basin was necessary, however, the basin's level was near its maximum and began to overflow at 1:03 pm. The backwash pump process was then manually aborted by staff to stop any further flow going into the basin. The overflow ceased at 1:09 pm while the pumps caught up sending flows back to the head of the BWRP.	Other (specify below)	Tertiary filter waste wash-water basin 	Concrete; Other (specify below)	The tertiary filter waste wash-water basin is constructed out of reinforced concrete. It is noted that no structural damage or failure point has been observed in the infrastructure.  Tertiary filtration was added at the plant in 1971, and the filters were upgraded in 1999,	25	An estimated 2,741 gallons of secondary treated effluent and backwash water (used to clean the tertiary filters) overflowed and entered the onsite BWRP storm drains that are immediately adjacent to and flow into the Burbank Western Channel. Water quality samples were collected in the receiving water both upstream and downstream of the discharge. For additional information, please refer to the attached file titled  BWRP WWWB SSO Certificates of Analysis. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	An estimated 3,259 gallons of overflow was contained in the tertiary pipe gallery, and the spill area was cleaned up using hoses and brooms.  In addition, water quality samples were taken as described above.	Other (specify below)	Instructed contract operations staff to verify the level in the tertiary filter waste wash-water basin before backwash of filters (and backflush of pumps) are performed.  May consider additional SCADA controls and notifications in the future for the tertiary filters.	Instructed contract operations staff to verify the level in the tertiary filter waste wash-water basin before backwash of filters (and backflush of pumps) are performed.  May consider additional SCADA controls and notifications in the future for the tertiary filters.	N/A	10/29/2024 15:13	The incident occurred when the tertiary filter's waste wash-water basin (basin) overflowed, after a series of filter backwashes filled the basin at a higher rate than it could be pumped back to the head of the BWRP.  It is noted that flow into the basin includes secondary treated effluent and backwash water used to clean the tertiary filters. The overflow entered the onsite BWRP storm drains that are immediately adjacent to and flow into the Burbank Western Channel. Approximately 3,259 gallons was captured in the BWRP tertiary pipe gallery and returned to the system. For additional information, please refer to the following attached files:  Final Incident Report 10.29.24,   10.29.24 BWRP INITIAL PHOTOS,  and  BWRP 10.29.24 Additional Photos 	N	N/A		Burbank Western Channel	Other (specify below)	Reinforced Concrete Flood-Control Channel	The Burbank Western Channel, which drains into the Los Angeles River and then to the ocean. 	N/A	Other (specify below)	No public access impact	N/A	0	N	Y	RSW-002D and RSW-002U	Nitrate/nitrite, ammonia, and E.coli									N/A	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	894911	2.1	Certified	Kent Vian	Asst. Deputy Director		01-NOV-24	01-NOV-24	Monthly Category 3 Spill	NOT-40201104929  9535 EASTER WAY.	05/18/2024 09:44	05/18/2024 10:15	05/18/2024 10:23				THE SPILL ORIGINATED FROM MANHOLE#39 IN THE MIDDLE OF THE STREET ADDRESS 9535 EASTER WAY. 	32.87943	-117.21114	Manhole	N/A	N/A	160	THE SPILL BOUNDARIES APPEARANCE POINT WAS MANHOLE#39. TRAVEL NORTH-WEST INTO STORM DRAIN AND SETTLE INTO CAMPUS POINT OPEN SPACE CANYON.	Y	THE STORM DRAIN CONVEYANCE SYSTEM IS MADE OF CONCRETE AND IS DRY	0				0	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface	N/A	THE SPILL TRAVELED NORTHBOUND FROM THE STREET THROUGH THE CURB TO WESTBOUND INTO STORM DAIN AND SETTLED INTO THE DRY CANYON AREA.	Y	32.87943	-117.21114							05/18/2024 11:30	THE ESTIMATION IS CALCULATED BY VISUAL METHOD.	THE SPILL START TIME IS WHEN DISPATCH RECEIVES THE CALL FROM THE CONSUMER REPORTING THE SPILL.	Root Intrusion	N/A	Gravity Mainline	N/A	Vitrified Clay	N/A	57	THE SPILL IMPACT WAS TO THE STREET, CURB, STORM DRAIN, AND DRY CANYON AREA.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow	N/A	CREWS RELIVED FLOW FROM DOWNSTREAM MANHOLE#44 TRACK DOWN FINAL DESTINATION WASHDOWN STREET, CURB AND STORM DRAIN.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause	N/A	THE ASSET WAS RESEARCHED BY THE WWC ENGINEER GROUP, WHICH MADE NO ADJUSTMENTS. THE STOPPAGE WAS CAUSED BY LATERAL ROOTS, AND OWNERS WERE NOTIFIED VIA DOOR HANGERS. 		05/18/2024 11:30	THE CREW RECOVERED ROOTS FROM THE DOWNSTREAM MANHOLE FROM THE PRIVATE LATERAL. 		NO	05/18/2024 17:10														N/A	NONE AT THIS TIME. OWNERS WERE NOTIFIED OF LATERAL ISSUES IN THE AREA.	NONE AT THIS TIME	NONE AT THIS TIME	NONE AT THIS TIME	NONE AT THIS TIME	NO MODIFICATIONS WERE MADE TO OPERATION AND MAINTENANCE OF THE ASSET.	NONE AT THIS TIME	NO	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	894915	2.1	Certified	Kent Vian	Asst. Deputy Director		11-DEC-24	11-DEC-24	Monthly Category 3 Spill	NOT-40201105034-9912 KIKA CT.	05/19/2024 11:15	05/19/2024 11:37	05/19/2024 11:52				THE SPILL ORIGINATED FROM MANHOLE#141, TRAVELING DOWN SOUTHEAST INTO THE STORM DRAIN.	32.94075	-117.11264	Gravity Mainline; Manhole	N/A	NO	252	THE SPILL BOUNDARY STARTED ON MANHOLE#141, TRAVELING ON KIKA CT TOWARDS MERCY RD INTO A STORM DRAIN AND SETTLED INTO LOS PENASQUITOS CANYON.	Y	THE STORM DRAIN SYSTEM MADE OF CONCRETE.	0				0	Drainage Conveyance System; Groundwater Infiltration Basin or Facility; Street/Curb and Gutter (2 3); Unpaved Surface	N/A	THE SPILL TRAVEL SOUTH FROM THE STREET THROUGH THE CURB EASTBOUND INTO THE STORM DRAIN.	Y	32.94118	-117.11362							05/19/2024 12:45	THE ESTIMATION IS CALCULATED BY VISUAL METHOD.	THE SPILL START TIME IS WHEN DISPATCH RECEIVES THE CALL FROM THE CONSUMER REPORTING THE SPILL.	Root Intrusion	N/A	Gravity Mainline; Manhole	N/A	Vitrified Clay	N/A	33	THE SPILL IMPACT WAS TO THE STREET, CURB, GUTTER, STORM DRAIN, AND DRY CANYON AREA.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow	N/A	CREWS RESPONDED, INVESTIGATED, RELIVED, AND TRACKDOWN FINAL DESTINATION, WASHDOWN STREET, CURB, AND STORM DRAIN.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause	N/A	THE SPILL CORRECTION ACTION TAKEN WAS TO RELIEVE THE BLOCKAGE BY USING A COMBINATION TRUCK. Asset was researched by WWC Engineer group and made adjustment or notifications to CIP project manager @ EPM		05/19/2024 13:40	THE CAUSE OF THE SPIL WAS ROOTS IN THE MANHOLE AND MAIN.		NO	05/19/2024 18:15														NOT RIGHT NOW.	Asset was put back on a frequency after being missed due to system data entry personal @ EPM. 	Yes, put back on frequency 	N/A	N/A	N/A	See attached 	N/A	NO	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	894816	2.1	Certified	Kent Vian	Asst. Deputy Director		01-NOV-24	01-NOV-24	Monthly Category 3 Spill	NOT-40201102554-4422 YERBA SANTA DR.	05/12/2024 11:34	05/12/2024 12:11	05/12/2024 12:30				SPILL ORIGINATED FROM MANHOLE # 152 EQ# 10749728	32.77784	-117.09479	Manhole	NOT APPICABLE	NOT APPLICABLE	233	SEWER DISCHARGE EXITED MANHOLE #152 AND HEADED EAST IN CANYON AND SETTLED IN CANYON.	N	NOT APPLICABLE	0				0	Unpaved Surface	NOT APPLICABLE	SEWER DISCHARGE EXITED MANHOLE #152 AND HEADED EAST IN CANYON AND SETTLED IN CANYON.	Y	32.77784	-117.09479							05/14/2024 06:52	VISUAL CALCULATED METHOD/DURATION AND FLOW TO CALCULATE THE SPILL VOLUME AND THE AMOUNT RECOVERED.	START TIMES ESTIMATION WERE ASSUMED WHEN THE CONSUMER CALLED IN AND REPORTED THE SPILL TO THE CITY DISPATCH.	Fats, Oil and Grease (FOG)		Gravity Mainline	NOT APPLICABLE	Vitrified Clay	NOT APPLICABLE	72	IMPACTS OF THE SPILL WERE TO THE CANYON AROUND THE MANHOLE ONLY.	N	Mitigated Effects of Spill (specify below); Restored Flow	NOT APPLICABLE	CREWS RESPONDED TO CALL RELIEVED STOPPAGE, TRACKED FINAL DESTINATION, FLUSHED 2UP AND 2DOWN, CCTV MAINS 2UP 2DOWN TO DETERMINE THE CAUSE OF SPILL.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV	NOT APPLICABLE	THE ASSET WAS RESEARCHED BY THE WWC ENGINEERING GROUP AND ADJUSTED THE CURRENT FREQUENCY.  		05/12/2024 15:27	THE CREW RECOVERED GREASE FROM THE DOWNSTREAM MANHOLE OF UNKNOWN ORIGIN. 		NONE AT THIS TIME	05/12/2024 15:27														NOT APPLICABLE	ASSET HAD A FREQUENCY CHANGE FROM 24 MONTH TO 12 MONTH  	ASSET HAD A FREQUENCY CHANGE FROM 24 MONTH TO 12 MONTH  	NONE AT THIS TIME	THE CCTV CREWS INSPECTED THE MAIN AND DETERMINED THE CAUSE TO BE ROOTS.	NONE AT THIS TIME	SEE ATTACHED	NO MODIFICATIONS TO SERP	NONE AT THIS TIME	
8	8SSO10583	Active	La Habra City CS	La Habra City	897297	1.1	Certified	Brian Jones	Utilities Manager		31-OCT-24	31-OCT-24	Monthly Category 3 Spill	340 S. Monte Vista	10/30/2024 13:30	10/30/2024 13:40	10/30/2024 13:20				In utility easement behind property	33.92903	-117.95372	Manhole			75	Spill exited manhole though pickhole, flowed to dirt area and then to private drive (asphalt) where it was contained.	N						60	Paved Surface; Unpaved Surface		Spill remained on private property at 340 S. Monte Vista.										10/30/2024 14:10	measurement of width, depth, and length of spill area	reporting person was at home when the spill occurred and called office promptly	Debris-General	small branches from on site bushes 	Manhole		Vitrified Clay		65	Spill remained on private property and was contained by City staff.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		placed spill containment waddles on site, cleared blockage using a hydraulic jetter, collected those portions of the spill that were in the driveway, and disinfected the area with Vanguard chemical solution.	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Will install locking manhole covers to prevent access.	The manhole relating to the spill is in the back of a private property and is not seen by the general public.  To prevent future instances, a locking composite manhole will be installed.		10/31/2024 13:24	Staff found clipped branches from local shrubbery which led to the spill.  Teh clippings were either pushed through the pickholes or the lid was removed and the clippings dropped into the manhole.  The lid was in place at the time of the event.		NA	10/31/2024 13:51														NA	install locking composite manhole	NA	NA	NA	NA	NA	NA	NA	
3	3SSO10287	Active	Marina Coast CS	Marina Coast WD	897299	1.6	Certified	Derek Cray	Operations & Maintenance Manager		06-NOV-24	06-NOV-24	Monthly Category 3 Spill	Fourth Ave/Inter Garrison Rd	10/27/2024 12:09	10/27/2024 12:32	10/27/2024 11:57				The spill originated from a manhole on Fourth ave/Inter-Garrison Rd at an approximate spill rate of 5 gpm. 	36.65424	-121.80136	Manhole			305	Upon exiting the manhole, sewage collected in the gutter which then reached the storm drain at the S/W corner of Fourth Ave/Inter-Garrison Rd.  From that point, sewage continued to make its way N/W through the storm drain system to the point where it was intercepted. The storm drain system affected by the spill was hydro cleaned with our Vactor. All sewage and water used for cleaning were recovered and removed. 	Y	The storm drain system consisted of 12in diameter concrete pipe which flows to a dedicated percolation basin and not water of the US. This section of road is lined with established trees which contributed debris to the storm system. The debris existing within the storm system acted as berms which limited the reach of the spill. All debris within this section of the storm system was removed during cleanup. 	301				305	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Once sewage entered the storm system, it made its way north where it was intercepted at the DI on the north side of Inter-Garrison/Fourth Ave. During the investigation, it was discovered that sewage did not make it to the last identified DI. Cleaning methods included all of the storm system up to the location of the last identified DI. This was completed to ensure the recovery of all sewage.     	Y	36.65494	-121.80163							10/27/2024 12:59	The spill volume was determined by calculating the spill area on the asphalt and concrete gutter from the manhole up to the storm drain entry point. The volume in the storm drain was calculated by first determining the layout of the system and identifying the full reach of the spill within the system. Next, the size of the storm drain pipe was determined. Once all information was collected full spill volume could now be calculated.   Appearance point area to storm DI: 145ft x1ftx.0013x7.48=1.41gal 5x4x.0026x7.48=0.39gal 13x10x.0026x7.48=2.53galtotal 1.41+0.39+2.53= 4.33 gal  Storm drain: .785x1x1x190x0.27x7.48= 301.22 gal  	The spill start time was captured by observing the number of pick holes allowing sewage to exit. Next, the height of the sewage from each pick hole was measured and recorded. This information was captured while the spill was still active. This allowed for a calculation to determine the estimated gpm of the spill. The total spill path was then calculated to obtain the total spill volume. The total spill volume was then divided by the estimated spill gpm which provided the total spill duration in minutes. The spill end time was recorded once the vactor relieved the spill.  With the known spill end time, the estimated start time could now be determined.  	Root Intrusion		Manhole		Polyvinyl Chloride (PVC)		24	The impact of the spill was contained to the area around the manhole, gutter, and storm drain system. All sewage was recovered from the storm drain using the vacuum truck.  The vacuum truck was also used to disinfect and wash down the area around the manhole, asphalt, and gutter. All water used for disinfection was recovered and properly disposed of. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Upon arrival the required appearance point information was collected. Once collected, one operator immediately ended the spill by utilizing the vacuum portion on our vactor unit, while the other operator began to determine the full path and reach of the spill. Once the sewage in the manhole was completely removed, the operator initiated hydro jetting procedures to relieve the blockage. Vacuuming the sewage out before hydro jetting prevented more sewage from exiting during jetting operations. Once the flow was restored, disinfection and cleanup of the manhole area, gutter, and asphalt began. Hydro jetting of the affected storm system was also completed to ensure the total recovery of all sewage that entered the system. All water used for clean up was recaptured and properly disposed of.    	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		This location has been scheduled to be reinspected with the CCTV unit to evaluate the condition and ensure it is operating as designed. The reinspection is to take place 90 days from the date of the spill. Once the evaluation is complete, we can then determine the next best course of action beyond the normal routine maintenance if found necessary. Manhole rings will also be grouted to help prevent roots from entering the manhole.   		10/28/2024 11:30	On 10/28/2024 the District�s CCTV unit was sent out to investigate the cause of the spill as well as evaluate the interior of the sewer main. The main was found to be in good condition and made of current materials, PVC. The cause of the spill was identified to be roots which entered though the manhole rings. All roots were removed and properly disposed of.  		A reinspection with the District�s CCTV unit has been scheduled to capture information on how this segment of sewer main continues operating. Once the inspection is completed we can then determine the next course of action. The initial inspection identified roots, which had made their way into the sewer main through the manhole rings, as the cause of the spill. All roots were removed and disposed of. Manhole rings will be grouted to help prevent roots from entering. The sewer main was found to be in good condition and made of current material, PVC.	10/28/2024 14:00														N/A	Reinspection to evaluate the condition of this segment has been scheduled. CCTV inspection in 90 days will allow for an evaluation to see how this segment of the sewer main is operating. Once the inspection has been completed, we can then determine the next best course of action beyond routine maintenance, should it be found necessary. Manhole rings will also be grouted to help prevent roots from entering the manhole. 	This location has been scheduled to be reinspected to evaluate the operation of this segment of sewer main. If the information collected identifies a need for more than routine maintenance, the schedule will be adjusted accordingly. If deemed necessary this location may be put on the District�s trouble spot list and/or subject to be reinspected. 	Currently, there is no planned replacement for this segment of sewer main. 	This location did receive a post spill inspection with the District CCTV unit.  A follow up inspection is scheduled to take place to reevaluate the current operation of this main. Depending on what is observed, this location may be placed on the Districts trouble spot list with increased maintenance frequency or, scheduled for another reinspection. Manhole rings will be grouted to help prevent roots from entering the manhole.   	Currently, the District has no improvement plans for this segment of sewer main. 	N/A	No spill response modifications required.  	A reinspection with the District�s CCTV unit has been scheduled to capture information on how this segment of sewer main continues operating. Once the inspection is completed we can then determine the next course of action. The initial inspection identified roots, which had made their way into the sewer main through the manhole rings, as the cause of the spill. All roots were removed and disposed of. Manhole rings will be grouted to help prevent roots from entering. The sewer main was found to be in good condition and made of current material, PVC.	
4	4SSO10382	Active	Diamond Bar City CS	Diamond Bar City	897300	1.2	Certified	Eric Liu	Civil Engineer	31-OCT-24	07-NOV-24	07-NOV-24	Category 1 Spill	2392 - Indian Creek Pump Station	10/28/2024 14:05	10/28/2024 13:45	10/28/2024 13:15	10/28/2024 14:53	24-6085		CSMD Map Sheet No. 2392 Indian Creek Pump Station force main break	33.977241	-117.815265	Force Main			1900	Sewage spilled from a broken force main into a dirt drainage course with minor background flow. It dries up 1,400 feet down the canyon from the force main break. 	Y	Sewage spilled from a broken force main into a dirt drainage course with minor background flow. It dries up 1,400 feet down the canyon from the force main break. 	0	1900	Sewage spilled from a broken force main into a dirt drainage course with minor background flow. It dries up 1,400 feet down the canyon from the force main break. 	1900	0	Drainage Conveyance System that discharges to surface water; Other (specify below); Unpaved Surface	Sewage spilled from a broken force main into a dirt drainage course with minor background flow. It dries up 1,400 feet down the canyon from the force main break. 	Sewage spilled from a broken force main into a dirt drainage course with minor background flow. It dries up 1,400 feet down the canyon from the force main break. 	N									10/28/2024 14:08	Calculated volume of force main volume drained and pumping cycle. 	Calculated volume of force main volume drained and pumping cycle. 	Pipe Structural Problem/Failure - Controls		Force Main		Cast Iron		54	No impact. 	N	Other (specify below); Other Enforcement Agency Notified	Repaired the broken force main. 	On 10/28/2024, the crew arrived at the pump station for a regular inspection and noticed an irregularity in the pump start. They shut down the pumps and heard a leak for a force main break near the pump station, which stopped after the pumps were shut down. Sewage hauling was arranged, and the station remained out of service until the contractor completed the force main repair on 10/31/2024. 	Repaired Facilities or Replaced Defect		Repaired the broken force main section. 	N/A	10/31/2024 15:00	Section of the force main was broken. 	N			Brea Creek - Coyote Creek / San Gabriel River	River; Stream/Creek		Major Watershed - San Gabriel River Major Subwatersheds - Coyote Creek Watershed Boundaries (HUC12) - Brea Creek - Coyote Creek	No impacts. 	Other (specify below)	No impact. 	N/A	0	N	N												
2	2SSO10163	Active	Oro Loma Sd CS	Oro Loma Sanitary District	897302	1.3	Certified	Christopher Brown	Collection System Manager	01-NOV-24	13-NOV-24	13-NOV-24	Category 1 Spill	1807 East Avenue	10/29/2024 04:56	10/29/2024 05:30	10/29/2024 02:30	10/29/2024 07:29	24-6120		The spill appearance point was the lateral cleanout for 1807 East Avenue. A partial blockage of the sewer main caused by a private lateral root led to the spill from the clean out of the next upstream connection. The flow from the cleanout ran to a lower level garage sump pump which then pumped it up the driveway to the curb and gutter. Based on comparison photos the spill was estimated at 5 gallons per minute and went on for a duration of 225 minutes. This was supported by the Plumber on scene and the resident. The first responder on scene sand bagged the closest storm drain inlet and called for support. The spill was contained in a dry natural drainage behind the downstream homes. The stoppage was relieved at 6:15 PM and cleanup and wash-down was begun. The affected curb and gutter were washed don to the awaiting vacuum truck and emptied at the treatment plant. Crews returned the following day and vacuumed of any standing water and contaminated soil, leaves and debris.	37.67209	-122.06515	Lateral Clean Out (Private)			1125	The flow ran down the curb and gutter entering the storm drain system. The storm drain crossed the street and ran down to a dry unnamed drainage where the flow was stooped with an earthen dam. 	Y	The flow entered the drain inlet and traveled 387' to a dry drainage where it was contained with an earthen dam. The storm drain system was cleaned and the drainage was vacuumed of any standing water and contaminated soil, leaves and debris. The balance soaked into the dry soil.  	280	848	The spill entered the storm drain system through a drain inlet on the street. Staff was able to contain the spill in the unnamed dry drainage with an earthen dam stopping the spread 	1045	280	Drainage Conveyance System; Unpaved Surface		The spill appearance point was the lateral cleanout for 1807 East Avenue. A partial blockage of the sewer main caused by a private lateral root led to the spill from the clean out of the next upstream connection. The flow from the cleanout ran to a lower level garage sump pump which then pumped it up the driveway to the curb and gutter. The spill traveled down the curb and gutter to a storm drain inlet 687' away. The spill traveled another 389' through the storm drain to a dry natural drainage area. The spill was contained 154' downstream with an earthen berm. The affected curb and gutter were washed down to the awaiting vacuum truck and emptied at the treatment plant. 	Y	37.67314	-122.0673							10/29/2024 18:15	Based on comparison photos of overflowing cleanouts upon arrival, the spill was determined to be 5 gallons per minute and went on for a duration of 225 minutes. This was supported by the Plumber on scene and the resident. The start time was determined to be 2:30 PM, or 10 minutes before the homeowner heard their garage sump pump turn on.  The volume recovered was determined by measuring the volume contained in the sandbagged storm drain inlet and measuring the wetted area in the dry drainage. The storm drain inlet held 80 gallons and the dry drainage held roughly 200 gallons. This was determined by measuring  L x W x D of the standing trapped water and converting to gallons. It is assumed that the remainder soaked into the dry dirt of the drainage.	The start time was determined to be 2:30 PM, or 10 minutes before the homeowner heard their garage sump pump turn on. 10 min was added to when the resident heard the pump come on, to allow for the small sump basin to fill before activating the pump. The spill was stopped at 6:15 PM when the the Hydro-Jetter cleared the partial blockage and the lateral cleanout stopped spilling.	Other (specify below)	Roots growing into the District's main from a private lateral created a partial blockage which led to the cleanout spilling.	Lower Lateral	Roots growing into the District's main from a private lateral created a partial blockage which led to the cleanout spilling.	Vitrified Clay		74	The flow entered the storm drain inlet and traveled to a dry drainage where it was contained with an earthen dam. The storm drain system was cleaned and the drainage was vacuumed of any standing water and contaminated soil, leaves and debris. The balance soaked into the dry soil.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Returned Portion of Spill to Sanitary Sewer System		The affected curb and gutter were washed down to the awaiting vacuum truck and emptied at the treatment plant. The storm drain system was cleaned and the drainage was vacuumed of any standing water and contaminated soil, leaves and any debris which was emptied at the treatment plant. The balance soaked into the dry soil. 	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		The Line Segment was inspected post spill and the private lateral roots were removed by cleaning. The Line Segment has been added the the next Line Replacement Project. 	This Project will go to bid in FY24-25 and will be constructed during Calendar year 2025.	10/30/2024 16:30	Crews returned on 10/30/24 at 8:00 AM to continue post spill clean-up and post spill CCTV investigation. The inspection showed the remains of a root ball from a private lateral. It was determined that the roots extended into the main causing the partial blockage which led to the spill from the lateral cleanout.	N			Alameda County SD Channel	Other (specify below)	Alameda Country Unnamed Natural Dry Creek	Alameda Country Unnamed Natural Dry Creek	None. There was no water.	Other (specify below)	There was no public access impact	There were no closures or restrictions.	0	N	N												
2	2SSO10154	Active	Mill Valley City CS	Mill Valley City	897303	1.1	Certified	Andrew Poster	Director of Public Works		26-NOV-24	26-NOV-24	Monthly Category 3 Spill	343 Summit Ave	10/29/2024 16:48	10/29/2024 17:47	10/29/2024 16:30				Manhole in front of 343 Summit Ave 	37.911114	-122.55546	Manhole			105	Spill ran down nearside gutter from rod inlet.  It pooled in a clogged drain inlet depression and then down the road into unpaved surfaces where it was absorbed into the ground. 	Y	It reached a clogged DI.  The spill was contained in the basin of the DI	10				10	Unpaved Surface		Spill ran across across the paved surface, into a gutter and then into a completely clogged drain inlet.  The outfall of the inlet was observed and no sewage was seen at the outfall.  Sewage ran downhill from the clogged inlet and was absorbed into unpaved surface.  Drain inlet was cleaned thoroughly with a vactor. 										10/29/2024 17:50	Duration and Flow rate estimation method flow out of pickhole/vent	We estimated time of occurrence versus being discovered given the pedestrian and vehicular traffic on the road and past experience.  	Root Intrusion		Gravity Mainline		Vitrified Clay		60	Spill absorbed into unpaved land on the hillside. 	N	Cleaned Up (specify below); Restored Flow	ABout 10 Gallons was recovered from the fully clogged drain inlet	Area was washed down and swept clean.  Standing sewage was vactored up. Line was rodded	Other (specify below)	Rodded line	This area is being evaluated for improvements in our 2025 Sewer Program.  If found to be necessary (In January-February) it would be improved in Summer 2025		11/08/2024 17:55	We CCTV'd other pipes to look for problems possibly caused by the CIPP project but found no issues.  As such, we believe that roots, which were pulled from the line at time of SSO response are the primary contributing factor. 		We investigated all recently completed CIPP projects to confirm there was not a problem with the resin not hardening.  We did not find problems at other locations	11/08/2024 15:00														NA	NA	Will evaluate with 2025 Sewer Program	Will evaluate with 2025 Sewer Program	NA	Will evaluate with 2025 Sewer Program	NA	NA	We investigated all recently completed CIPP projects to confirm there was not a problem with the resin not hardening.  We did not find problems at other locations	
2	2SSO10154	Active	Mill Valley City CS	Mill Valley City	897305	1.1	Certified	Andrew Poster	Director of Public Works		26-NOV-24	26-NOV-24	Monthly Category 3 Spill	86 Florence Ave	10/26/2024 11:25	10/26/2024 12:00	10/26/2024 10:30				Spill originated at FH82.  	37.90328	-122.5522	Manhole		0	525	Spill flowed off onto unpaved hillside	N	NA	0				0	Unpaved Surface		Hillside below affected manhole.  Spill was fully absorbed										10/26/2024 14:00	Photos of the spill show that the manhole was intermittintely overflowing.  When it was overflowing, it was flowing at or less 5 Gallons per minute according to the San Diego method.  Therefore we've halved the flow rate of the 5GPM in San Diego Method.  Mark Neumann called the reporting party to verify that the spill likely started earlier than esitmated in the field.  The caller said that the spill was already there fore some time when they discovered it and did so at 11AM, when they immediately called Roto Rooter.  They did not notice it earlier in the day, so 10:30 is believed to be a reasonable start time. 	San Diego method adjusted for observed periods of no overflow. 	Root Intrusion		Gravity Mainline		Vitrified Clay		55	Hillside below appearance point was dampened	N	Restored Flow		Manhole was cleaned, rest of spill absorbed into hillside.  We restored flow with a 2  hand rod and cleaned the pipe more thoroughly the next work day. 	Post Spill CCTV		This area will be investigated as part of our 2025 Sewer CIP		10/29/2024 14:30	NA		None	10/29/2024 14:30														NA	This area will be investigated as part of our 2025 Sewer CIP	NA	This area will be investigated as part of our 2025 Sewer CIP	This area will be investigated as part of our 2025 Sewer CIP	This area will be investigated as part of our 2025 Sewer CIP	NA	NA	None	
2	2SSO10104	Active	Ccsf - San Francisco Airport CS	CCSF - San Francisco Airport	897306	1.5	Certified	Jennifer Acton	Director of Maintenance	01-NOV-24	15-NOV-24	15-NOV-24	Category 2 Spill	Boarding Area F; Near Gates F16, F12 and F5	10/31/2024 09:54	10/31/2024 09:57	10/31/2024 09:50				Spill appeared at multiple locations around Boarding Area F; manhole on ramp near Gate F16, manhole on ramp near Gate F5 and manhole and cleanout located in construction area near Gate F12.  The appearance point closest to the failure point was the sanitary sewer manhole located in the construction area near Gate F12.	37.619553	-122.387679	Manhole; Other (specify below)	Spill appeared from multiple locations:  three sanitary sewer manholes and one sanitary sewer main line clean out.	Spill appeared from three sanitary sewer manholes (Gate F16, Gate F5, Gate F12 construction area) and one sanitary sewer main line cleanout in construction area near Gate F12.	1356	Spill from Gate F16 sanitary sewer manhole overflowed onto the airfield operations area ramp and flowed downstream towards and affected one storm drain catch basin.  The spill from Gate F5 sanitary sewer manhole overflowed onto the airfield operations ramp and flowed downstream and affected one storm drain catch basin.  The spill from the sanitary sewer mainline manhole and clean out in the construction area near Gate F12 flowed onto the unpaved compacted dirt area and ponded around the manhole and clean out.	Y	The spills that overflowed from Gates F16 and F5 manholes each affected a storm drain catch basin near the aircraft gates.	955	0			1356	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Unpaved Surface		Spill from Gate F16 sanitary sewer manhole overflowed onto the airfield operations area ramp and flowed downstream towards and affected one storm drain catch basin.  The spill from Gate F5 sanitary sewer manhole overflowed onto the airfield operations ramp and flowed downstream and affected one storm drain catch basin.  The spill from the sanitary sewer mainline manhole and clean out in the construction area near Gate F12 flowed onto the unpaved compacted dirt area and ponded around the manhole and clean out.	Y	37.620124	-122.388617	37.619555	-122.387679	37.619499	-122.387551	37.62004	-122.38712	10/31/2024 15:35	Spill volume was estimated using information provided by Airport Spill Team and other Airport department personnel responding to the incident.  Field measurements of the impacted surfaces were collected by the Airport Spill Team were used to perform area/vol calculations along with eyeball estimations of flow rates from the appearance points.  Incident photos were also used as reference of surface areas impacted. 	Information provided by the Airport Spill Team and other Airport departments (Airport Airfield Operations, Airport Fire Department, Airport Plumbers) responding to the spill incident was used to determine the estimated spill times.	Debris-General; Debris-Rags		Gravity Mainline		Other (specify below)	Unverified pipe material, but assumed DIP	48	Spill impacted the paved areas at Airport airfield operations areas near Gates F16 and F5.  Spill impacted unpaved construction area near Gate F12.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Airport Airfield Operations, Fire Department, Plumbers, Spill Team, and Duty Manager responded to spill incident.  Airport Fire Department deployed absorbent material to protect storm drain catch basin near Gate 16.  Airport Spill Team deployed absorbent material to protect storm drain catch basin near Gate F5.  Plumbers used vactor truck to perform hydrojetting of sanitary sewer drain to clear blockage and restore flow to the sanitary sewer system.  Airport scrubbing contractor used scrubbing machine to clean the impacted paved surfaces.  Plumbers used vactor truck to vacuum ponded wastewater from unpaved surface inside the construction area near Gate F12.  Airport Plumbers used vactor truck to remove wastewater from affected storm drain catch basins near Gates F16 and F5.  Plumbers used vactor truck hydrojetter equipment to flush and pump out the affected storm drain pipes and system.   All wastewater was captured and returned to the Airport's sanitary sewer system for processing.	Other (specify below)	Section of sewer piping from Gate F5 is on an existing hydrojetting preventative maintenance schedule.  The Airport has also installed signs in restrooms around the Airport in effort to prevent passengers from flushing anything other than toilet paper.	Section of sewer piping from Gate F5 is on an existing hydrojetting preventative maintenance schedule.  The Airport has also installed signs in restrooms around the Airport in effort to prevent passengers from flushing anything other than toilet paper.	NA	11/01/2024 16:30	Airport Plumbers investigation determined the overflow was caused by a blockage in the gravity sanitary sewer mainline from rags and general debris.	N												N													
2	2SSO10181	Active	San Leandro CS	San Leandro City	897307	1.0	Work In Progress						Monthly Category 3 Spill	48 Harlan St 	10/26/2024 06:30	10/26/2024 07:15	10/26/2024 12:00				The description of the spill was a backup into a basement at 48 Harlan St. Our city main was blocked due to FOG and discharged into the lowest point which was 48 Harlan Streets basement. 	37.719733	-122.1499449	Inside Building or Structure; Lateral Clean Out (Private)	Sewage Spilled out of a private lateral located in the middle of the basement at 48 Harlan St. 	n/a	210	When we arrived on scene the spill had already been cleaned up by the residents and a local plumbing company. Are pictures attached are of the area already cleaned and disinfected. 	N		0				0	Building or Structure		The destination of the spill was only Inside the basement of 48 Harlan St.  Latitude 37.719733   Longitude - 122.1499449 	Y	37.719733	-122.1499449							10/26/2024 07:27	Due to not seeing the actual spill or having pictures of the actual spill we took the average daily water usage for residents in San Leandro. We added every resident upstream of the effected address for the duration of the spill. The amount of a spill recovered from us was 0 gallons.   They hired a contractor who disposed of the sewage. 	 We took the average daily water usage for residents in San Leandro. We added every resident upstream of the effected address for the duration of the spill. 	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		90	The spill impacted the basement of 48 Harlan St.  The floor was wet, and two sheet rock walls were damaged. 	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow	We hired are 3rd party contractor to repair the damaged walls, and clean the basement	We arrived on scene inspected multiple Manhole, then immediately broke the plug. The residents had the affected area already cleaned upon arrival by a outside contractor. 	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		We added the line segment to our hot spot list that will now be inspected weekly.  We also notified residents about the effects of FOG.  We also notified the residents about the effects of having illegal tie ins to their sewer lateral. We will also add the line segment to our CCTV monthly inspection list to monitor the effects of FOG. 		10/26/2024 08:20	We did an investigation to the spill and determined heavy amounts of FOG caused the spill.  When we broke the plug, the operators noticed heavy grease in the line segment.  We also notified the residents to call us immediate upon experiencing sewer issues instead of waiting for hours. We gave them a handout on how to reach us after hours if this incident ever occurs again. We also educated them on having illegal tie ins on their sewer lateral, we noticed floor drains tied into their sewer lateral. We will keep this line segment on our spot list and inspect it weekly. 		Continuing to CCTV the line segment to monitor the FOG. Adding the line segment to our hot spot program that will be checked weekly.  Continuing to educate the residents on the effects of FOG. 	10/28/2024 10:00														N/A	We will add this location to our hot spot list that will now be inspected weekly. Notify residents about FOG and the damages it causes. Monthly CCTV inspections to monitor FOG. 	We Adjusted the schedule of the line segment by adding it to our hot spot program which gets inspected weekly.  We will adjust and add the segment to our CCTV monthly inspect list.  	n/a	There is no repair or replacing needed on the line. The line has been inspected after the spill and will continue to be monitored on our hot spot list (weekly). 	n/a	Are work orders in our CMMS have been modified to add this line segment to our Hot spot list. 	The modifications we made is adding the line segment to our hot spot list which will be monitored weekly due to heavy FOG.  	Continuing to CCTV the line segment to monitor the FOG. Adding the line segment to our hot spot program that will be checked weekly.  Continuing to educate the residents on the effects of FOG. 	
3	3SSO11524	Active	Monterey City CS	Monterey City	897316	1.2	Certified	Andrew Easterling	City Engineer		14-NOV-24	14-NOV-24	Monthly Category 3 Spill	Bayview School 190 Seeno	11/01/2024 13:15	11/01/2024 13:30	11/01/2024 13:00				Spill reported by Monterey Peninsula Unified School District (MPUSD) when they observed sewage discharging from SMH C04-004 located in the parking area of Bayview school.  MPUSD placed sand bags in front of drain inlet to protect storm drain.  A minimum amount entered the inlet but was recovered by City crews during cleanup.	36.60424	-121.89963	Manhole			200	The spill exited manhole C04-004 located in an asphalt parking lot and sheet flowed approximately 350' toward a drain inlet that was blocked with sand bags.  The area of the wet area was approximately 1,400 SF as depicted in the attached document.	Y	Private drain inlet in Bayview parking lot	3				3	Paved Surface		sewage was contained to parking area.  Approximately 3 gallons entered a catchbasin and was vacuumed out by Public Works	Y	36.60449	-121.89997							11/01/2024 14:00	Used GIS to map out the wet area shown in photos taken by Streets upon arrival.  Approximately 1400SF x 1/8 deep x 7.48 gal/sqft = 200 gallons.  Video taken shows approximately 2gpm discharge rate from manhole for approximately 1 hr.	MPUSD notified Streets of the spill at 1:15 shortly after discovering wastewater seeping out the manhole.  Assumed spill start time was 1:00pm.  End time estimated at 2:00pm based on operator arrival time, time to set up and hydrojet.	Root Intrusion		Gravity Mainline		Vitrified Clay		100	MPUSD blocked the storm inlet which limited the discharge to approximately 3 gallons which was vacuumed by Pub. Wks. The drainage channel at the outfall was dry and no sign that waste entered the channel.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		MPUSD blocked storm inlet with sand bags upon noticing the spill.  City Public Works responded with hydrojet to clear the line and restore flow.  ?Vactor truck flushed with clean water and vacuumed wastewater.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Mechanically removed roots using chain flail, followed up with CCTV to insure the line was clear of obstructions.	Reviewed previous CCTV which showed minimal structural damage, and moderate root intrusion.  Coordinated with Streets Division to mechanically remove roots & CCTV scheduled to complete by 11/8/24.		11/01/2024 13:15	Jet truck operator noted roots throughout the line while jetting.  Review of previous cctv confirmed root intrusion between 85-135' upstream.  Scheduled mechanical root removal using chain flail on 11/6/24.		None	11/01/2024 11:31														N/A	Use chain flail to mechanically remove roots	Scheduled chain flail for 11/6	No rehabilitation scheduled	No structural defects noted	N/A	CCTV inspection attached following heavy cleaning and mechanical root remova.	None	None	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	897319	1.1	Certified	David Leamer	Assistant Superintendent		15-NOV-24	15-NOV-24	Monthly Category 3 Spill	349908	10/04/2024 13:38	10/04/2024 14:12	10/04/2024 12:30				See Attached Spill map with Photos.	38.66119	-121.23638	Manhole			123	See Attached Spill Map with Photos	N	See Attached Spill map with Photos.	0				119	Street/Curb and Gutter (2 3); Unpaved Surface		See attached Spill Map with Photos.	N									10/04/2024 14:23	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Root Intrusion		Gravity Mainline		Vitrified Clay		57	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		See Attached Description of Spill Event	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		SacSewer inspected mainline with CCTV on 10/9/24. Based on findings, SacSewer increased preventative cleaning frequency to 18 months from 48 months.		10/04/2024 17:45	SacSewer arrived to find found M/H spilled, crew to clean line and TV inspect.  called street hydro to do follow up and clean up all recoverable spill.		None	10/04/2024 17:45														N/A	SacSewer increased preventive cleaning frequency from 48 months to 18 months.	SacSewer increased preventive cleaning frequency from 48 months to 18 months.	N/A	SacSewer inspected mainline with CCTV on 10/9/24.	N/A	SacSewer increased preventive maintenance frequency on 10/11/24.	N/A	None	
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	897320	1.4	Amended	Daniel Whitlock	Manager	04-NOV-24	08-NOV-24	08-NOV-24	Category 2 Spill	775 Corbett St.	10/28/2024 09:00	10/28/2024 09:30	01/24/2024 08:00				Gravity mainline and upper lateral at 775 Corbett St. Asset number P-94098 affected. Spill embedded into backyard dirt and came out of retaining wall onto the sidewalk.	37.75423	-122.442122	Gravity Mainline; Lateral Clean Out (Private); Lower Lateral (Private)			50304	Spill embedded into backyard dirt and came out of retaining wall drain onto the sidewalk.	N						50304	Other (specify below); Paved Surface; Street/Curb and Gutter (2 3)	Combined Sewer System	Spill embedded into backyard dirt of 775 Corbett and came out of a retaining wall onto the street sidewalk. It made its way back into the combined system through catch basin N-30526.	Y	37.75423	-122.442122							11/08/2024 07:29	Flow over time.	household uses 96 gallons of water a day (2 households in building) = 196 gal a day  Start time 8:00 am on 2/24/2024.  262 days had passed since spill started..  262 x 192 = 50304 gallons.  All spill went back into the combined system.   THIS REPORT WILL NEED TO BE AMENDED ONCE THE REPAIRS ARE COMPLETED. WE DECIDED TO CERTIFY BEFORE THE REPAIRS ARE MADE TO ENSURE WE MET CERTIFICATION DEADLINE.  	Other (specify below); Root Intrusion	Pipe Structural Problem/Failure - Collapsed pipe	Gravity Mainline		Vitrified Clay		77	Spill embedded into backyard dirt and came out of retaining wall drains onto the sidewalk. No road closures or blockages.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified	Returned all spill to combined sewer system.	Arrival time at 9:30 am. Dye tested upper lateral which confirmed a positive spill. Vactor arrived at 10:00am and started cleaning and containing spill. CCTV on 10/29/2024 confirmed collapsed pipe for asset P-94098. Contaminated dirt to be replaced.	Inspected Sewer Using CCTV to Determine Cause		Repair for asset P-94098 scheduled.	10/28/2024 - Notified of spill and dispatched to clean and disinfect area (#8601637) 10/29/2024 - CCTV confirmed collapsed pipe (#8604506) WO scheduled to repair collapsed pipe on 11/11/2024 but will most likely finish on 11/12/2024 (#8604629)	11/08/2024 07:22	Collapsed pipe caused the spill.	N												N													
5S	5SSO10891	Active	City Of Brentwood CS	Brentwood City	897321	1.4	Certified	Mark Huber	Wastewater Operations Manager		05-DEC-24	05-DEC-24	Monthly Category 3 Spill	160 Gregory Ln.	11/02/2024 15:30	11/02/2024 15:54	11/02/2024 15:00				Lower lateral cleanout	37.958	-121.698	Lateral Clean Out (Public); Lower Lateral (Public)		160 Gregory Ln. lower c/o	427	The spill traveled five feet from the lower cleanout to the DI. and was contained in the 12''x 241 feet long storm drainpipe capped at end. the pipe was .33ft. full no sewer exited the pipe.   	Y	12'' x 241ft. x .33ft. full sewer and capped at end of pipe. The DI's have a 8''overflow spillway pipe 6'' above the 12'' pipe that is holding the water. 	427				427	Drainage Conveyance System		The spill traveled 241ft. south into the storm Drian where it was blocked by a cap in the pipe. 37.958 - 121.698  	Y	37.958	-121.698							11/02/2024 16:07	Pipe volume at 12'' diameter x 241 ft. long x .33ft. full = 107gal plus, DI, 24'' x 24'' x .33 Deep. =10gal. = 427gal total	Interview with resident plus volume collected   On spill @ 15.00  noticed @ 15.15  notified @ 15.30 	Fats, Oil and Grease (FOG)		Gravity Mainline		Polyvinyl Chloride (PVC)		25	5ft. of surface area, 241ft. of concrete storm drainpipe.  	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Photos taken of affected areas and water flow, vacuumed/jet clean affected storm drainpipe.  Jet cleaned sewer main to break plug.  Jet cleaned sewer main to clean remaining grease build up.   	Adjusted Schedule/Method of Preventive Maintenance		Clean this segment of sewer main more frequently. Every three months. and re-evaluate after sex months.		11/02/2024 18:30	none		none	11/04/2024 11:41														none	none	Yes, three-month schedule. 	none	inspection after six months.	none	Yes, track through CMMS work orders.  	none	none	
3	3SSO11465	Active	Goleta West SD CS	Goleta West SD	897322	1.2	Amended	Brian McCarthy	General Manager	04-NOV-24	14-NOV-24	14-NOV-24	Category 1 Spill	SB Airport Abandon ARV Adaptor	10/30/2024 12:14	10/30/2024 12:14	10/30/2024 11:53	10/30/2024 15:44	24-6135		Manhole structure on top of 24  Force Main located along access road south [or west] of Santa Barbara Airport taxiway adjacent to runway 7/25.	34.42584	-119.84504	Force Main	At gasket of removed air release valve on 24  ductile iron pipe force main. Saddle connection with 2  bung plugged with threaded cap. Gasket on saddle connection appears to have failed.  Under further investigation.	None.	8460	Spill emanated from sides of manhole where concrete had broken off. Spilled water wetted a 22' diameter circle area while flowing northwest into a Santa Barbara Airport stormwater drainage culvert basin with concrete apron and unlined plunge pool. Water pooled in existing culvert basin/plunge pool measuring 10' diameter roughly 18  deep. Water continued northwest in a manmade 3' wide stormwater drainage channel for 45' with an average of 10  of standing water. Wetted soil continued north west along Management Area D embankment in a triangular shape for roughly 180 square feet.	Y	Santa Barbara Airport�s stormwater drainage Network 3 outfall number P-X07-029 to �Management Area D� of Goleta Slough that ordinarily infiltrates Airport�s stormwater. Area is surrounded by an embankment on all sides, isolating it from the tributaries of the Goleta Slough area.  Partial concrete lining.	6000	2460	It is our understanding the intent of this basin is to retain storm water runoff from the airport infields so it can percolate into the ground water.	8460	6000	Drainage Conveyance System	See Attachment Response for Response #1	See Attachment Response for Response #1	Y	34.42583	-119.84502	34.4256	-119.84515	34.42561	-119.84523	34.42563	-119.84515	10/30/2024 13:10	See Attachment Response for Response #3.	See Attachment Response for Response #3.a.	Other (specify below)	Spill occurred at an adaptor on the 24-inch ductile iron force main pipe installed in 1978.  The adaptor was where an air release valve had previously been removed and a steel threaded bung was installed at least twenty years ago.  The operational excursion appears to have been caused by a leak that sprung from the adaptor that filled the manhole and leaked from the concrete manhole collar.  The iron adaptor exhibited external corrosion.  The pipeline exposed during repair of the adapter appeared in standard condition.  Operations prior to the leak were normal and there was no unusual stress or pressure on the force main at the time of the leak.	Force Main		Ductile Iron		46	See Attachment Response for Response #7.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Other Enforcement Agency Notified; Property Owner Notified; Returned Portion of Spill to Sanitary Sewer System	See Attachment Response for Response #9	See Attachment Response for Response #9	Other (specify below); Repaired Facilities or Replaced Defect	See Attachment Response for Response #10	See Attachment Response for Response #10	See Attachment Response for Response #10	10/31/2024 12:00	The District�s investigation is continuing and the District will continue to provide updates to the Regional Board. The initial investigation involved excavating the manhole to the pipeline and retrieving the adapter at the point of the operational excursion.  External corrosion was observed on the gasket, as documented by photo, and the adaptor has been stored at the District�s office.  The District will next contract to replace additional adaptors in the next few weeks, and further document the condition of the pipeline at these point of repair.  In December 2024 the District is conducting an internal assessment of the integrity of the pipeline with Xylem Technologies.  The resulting report will be used to further inform the District�s investigations of this spill.	Y	The District will continue to investigate and replace the adaptors at the other, similar places where air release valves have been removed (4 other locations) and is conducting an internal pipeline assessment in December 2024 to ensure the integrity of the force main and to prevent another spill. The SBA Air Release Valve (ARV) Locations Overview Map shows the removed air release valve locations. The District is also completing investigation of the volume of the spill.	02/14/2025 16:05	Goleta Slough Management Area D	Other (specify below)	Stormwater outfall plunge pool, drainage conveyance and infiltration basin/dry basin.	See Attachment Response for Response #15.	The District continues to monitor the spill site and no impacts on aquatic life have observed since the spill.	Other (specify below); Restricted Public Access	See Attachment to Response #15	Santa Barbara County Public Health Department and Environmental Health Services	0	N	Y	Samples were collected from the outfall 12 basin from the plunge pool and from the water draining out from the pipe, from pooled water at the farthest extent of the spill area, upstream of outfall 12 in the stormwater pipe at an exposed drop inlet, and at a neighboring outfall 17 for comparison purposes.	pH, ammonia, total coliform, fecal coliform									The District will continue to investigate and replace the adaptors at the other, similar places where air release valves have been removed (4 other locations) and is conducting an internal pipeline assessment in December 2024 to ensure the integrity of the force main and to prevent another spill. The SBA Air Release Valve (ARV) Locations Overview Map shows the removed air release valve locations. The District is also completing investigation of the volume of the spill.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	897323	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	04-NOV-24	14-NOV-24	14-NOV-24	Category 1 Spill	1200 Lakeshore Avenue, Oakland Ca	11/01/2024 17:20	11/01/2024 17:45	11/01/2024 17:15				2 manholes were overflowing at sidewalk area and driveway, the sewage was flowing to the street, curb, and gutter and from there it was flowing into a separate storm drain that flows to Lake Merritt.	37.79861	-122.25786	Manhole; Other Sewer System Structure	There were 2 manholes overflowing.		188	2 manholes were overflowing at sidewalk area and driveway, the sewage was flowing to the street, curb, and gutter and from there it was flowing into a separate storm drain that flows to Lake Merritt.	Y	12  diameter storm line called 14th avenue creek and San Antonio, if flows to Lake Merritt.	0	188	12  diameter storm line called 14th avenue creek and San Antonio, if flows to Lake Merritt.	188	0	Drainage Conveyance System that discharges to surface water		2 manholes were overflowing at sidewalk area and driveway, the sewage was flowing to the street, curb, and gutter and from there it was flowing into a separate storm drain that flows to Lake Merritt.	Y	37.79876	-122.25846							11/01/2024 18:30	Manhole # 1: 1  Diam Pick hole x .5  Height = 1.25 GPM Manhole # 2: 1  Diam Pick hole x .5 Height = 1.25 GPM 1.25 GPM + 125 GPM = 2.5 GPM 75 minutes x 2.5 GPM = 188 Gallons.	Start time was based on eyewitness account. End time was based on responding crew restoring flow in the mainline.	Fats, Oil and Grease (FOG)		Gravity Mainline		Other (specify below)	P.E	45	2 manholes were overflowing at sidewalk area and driveway, the sewage was flowing to the street, curb, and gutter and from there it was flowing into a separate storm drain that flows to Lake Merritt.	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow	Staff washed down the street curb and gutter, and collected a small amount sewage from the street.	2 manholes were overflowing at sidewalk area and driveway, the sewage was flowing to the street, curb, and gutter and from there it was flowing into a separate storm drain that flows to Lake Merritt.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Sewer main was added to the three-month high frequency hydro. W.O. 1543496	Sewer main was added to the three-month high frequency hydro. W.O. 1543496	11/05/2024 10:30	CCTV found FOG deposits and wipes to have been the cause of the overflow.	N			Lake Merritt	Lake		Saltwater Lake	None visible.	Other (specify below)	None.	N/A	0	Y	N												
4	4SSO10414	Active	Palos Verdes Estates City CS	Palos Verdes Estates City	897332	1.1	Certified	Eric Liu	Civil Engineer		06-NOV-24	06-NOV-24	Monthly Category 3 Spill	1491-0088 (2329 Chelsea Road, Palos Verdes Estates, CA)	11/02/2024 15:45	11/02/2024 17:20	11/02/2024 12:30				CSMD Map Sheet No. 1491 MMS No. 9150027 Manhole No. 88 overflowing, upon arrival. 	33.77233	-118.42078	Manhole	Manhole No. 88		300	The overflow was contained within the dirt and vegetation in the alleyway, behind address (2329 Chelsea Road). 	N						0	Unpaved Surface		The overflow was contained within the dirt and vegetation in the alleyway, behind address (2329 Chelsea Road). 	N									11/02/2024 18:00	CWEA SSCSC Manhole Gauge Visual or Eyeball Method	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops. 	Debris-General; Root Intrusion		Gravity Mainline		Vitrified Clay		61	No impact.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Property Owner Notified; Restored Flow		Upon arrival, we found manhole 88 overflowing. The overflow was contained within the dirt and vegetation in the alleyway behind 2329 Chelsea Road. We attempted to open manhole 89, but it was frozen shut. We proceeded to hydro-jet the mainline from manhole 90 to 88 in the right-of-way (R/W) west of Chelsea Road, breaking down a stick and light root blockage between manholes 89 and 88.  The following day, November 3rd, the crew returned to remove the topsoil with a Vactor and replaced it with base and sand. The vacuumed debris was disposed of at the LA County sanitation facility. All required agencies were notified. 	Other (specify below)	The sewer is currently on an active 60-day periodic cleaning schedule. We will inspect sewer using CCTV to determine if adjustments or further actions are needed. 	N/A 		11/02/2024 20:40	N/A		The sewer is currently on an active 60-day periodic cleaning schedule. We will inspect sewer using CCTV to determine if adjustments or further actions are needed. 	01/02/2025 11:26														N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	The sewer is currently on an active 60-day periodic cleaning schedule. We will inspect sewer using CCTV to determine if adjustments or further actions are needed. 	
9	9SSO10710	Active	USMC Base, Camp Pendleton CS	US Marine Corps Base Camp Pendleton	897335	1.3	Certified	Robert Stephen Ramsey	CDR USN, Public Works Officer	05-NOV-24	06-NOV-24	06-NOV-24	Category 2 Spill	LS 43832 FM (ForceMain) BO (Blowoff) Loose Cap Spill	10/22/2024 20:30	10/22/2024 21:35	10/22/2024 20:30	10/22/2024 22:00	24-5990		Spill originated from a LS 43832 FM BO loose cap. Spill traveled 1,820 feet on Stuart Mesa pavement and exited and ended spill by percolating into the road shoulder, 2 feet from pavement edge.  See Attachment Photos: (1) LS43832 FM BO Cap Vault  (2) End Spill, Shoulder Percolation Discharge	33.298414	-117.455003	Other (specify below)	(1) LS 43832 FM BO Loose Cap.. See Attachment Photo: LS43832 FM BO Cap Vault (2) End Spill Shoulder Perc site, See Attachment Photo (3) See Spill Path  Photo	See Attached Spill Path Map 	2000	See attachment Spill Path Map	N						0	Unpaved Surface	Stuart Mesa Road Shoulder Perc Discharge, 2 feet off edge of pavement. Attachment Photo	Stuart Mesa Road Shoulder Perc Discharge, 2 feet off edge of pavement. Attachment Photo Lat: 33.296126; Long: -117.453559	Y	33.296126	-117.453559							10/22/2024 22:30	LS 43832 runtime and visual flow estimate from BO cap area when LS 43832 was operated during spill event.  None of spill recovered.	LS 43832 runtime and flow estimate from BO cap area when LS 43832 was operated during spill event.	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure	Spill caused by a non-fully secured Aluminum Blowoff cap.  Also, a required secure Blowoff isolation valve was non-secured..	Air Relief Valve (ARV)/ Blow-Off Valve (BOV)	Non-secured Blowoff isolation valve.	Other (specify below)	Aluminum cap with two locking bars.	5	None	N	Other (specify below)	(1) Immediate securing of Blowoff Valve (2) Immediate shutdown of LS 43832 with reactivation of LS 43832 only after cap replacement complete. (3) Monthly check for excessive flows or low pressure events during the monthly PM visits. (5) Daily FM Ground wet spot checks.	(1) Immediate securing of Blowoff Valve (2) Immediate shutdown of LS 43832 with reactivation of LS 43832 only after cap replacement complete. (3) Monthly check for excessive flows or low pressure events and secure isolation valve during the monthly PM visits. (5) Daily FM Ground wet spot checks.	Other (specify below); Repaired Facilities or Replaced Defect	(1) Immediate securing of Blowoff Valve (2) Immediate shutdown of LS 43832 with reactivation of LS 43832 only after cap replacement complete. (3) Monthly check for excessive flows or low pressure events and secure isolation valve during the monthly PM visits. (5) Daily FM Ground wet spot checks.	(1) Monthly check of all FM isolation valves to insure all are secured during monthly PM visits (2) Monthly PM checks of excessive flows or low pressure pump reads. (3) Daily FM ground wet spot checks 	(1) Immediate securing of Blowoff Valve (2) Immediate shutdown of LS 43832 with reactivation of LS 43832 only after cap replacement complete. (3) Monthly check for excessive flows or low pressure events and secure isolation valve during the monthly PM visits. (5) Daily FM Ground wet spot checks.	10/22/2024 22:30	NON-secure FM BO cap failure. Staff found missing blow off when responding to spill. Identified an open isolation valve when securing spill.	N												N													
4	4SSO11365	Active	Unincorporated County Area CSMD South/County Sanitation District CS	Los Angeles Cnty DPW	897338	1.2	Certified	May Hong	Civil Engineer	05-NOV-24	12-NOV-24	12-NOV-24	Category 1 Spill	1860-0311 (4017 Floral Drive, Los Angeles, CA - Unincorporated County Area)	11/02/2024 08:00	11/02/2024 09:15	11/02/2024 07:30				CSMD Map Sheet No. 1860 MMS No. 9150023 Overflowing Manhole No. 311	34.04435	-118.17989	Manhole			500	A portion of the sewage discharge from Manhole No. 311 into the storm drain at the northwest corner of 611 Brannick Avenue, at the intersection with Fisher Street. 	Y	A portion of the sewage discharge from Manhole No. 311 into the storm drain at the northwest corner of 611 Brannick Avenue, at the intersection with Fisher Street. 	0	300	A portion of the sewage discharge from Manhole No. 311 into the storm drain at the northwest corner of 611 Brannick Avenue, at the intersection with Fisher Street, which leads to Drain DDI 0026, Chavez Ravine-Los Angeles River. 	300	200	Drainage Conveyance System; Other (specify below); Street/Curb and Gutter (2 3)	A portion of the sewage discharge from Manhole No. 311 into the storm drain at the northwest corner of 611 Brannick Avenue, at the intersection with Fisher Street, which leads to Drain DDI 0026, Chavez Ravine-Los Angeles River. 	A portion of the sewage discharge from Manhole No. 311 into the storm drain at the northwest corner of 611 Brannick Avenue, at the intersection with Fisher Street, which leads to Drain DDI 0026, Chavez Ravine-Los Angeles River. 	Y	34.04357	-118.17989							11/02/2024 09:20	CWEA SSCSC Manhole Gauge	The start time is obtained from the reporting party, and the end time is determined by when the crew clears the obstruction, and the overflow stops.	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Concrete		98	A portion of the sewage discharge from Manhole No. 311 into the storm drain at the northwest corner of 611 Brannick Avenue, at the intersection with Fisher Street, which leads to Drain DDI 0026, Chavez Ravine-Los Angeles River. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow		Upon arrival at 4017 Floral Drive, Manhole No. 311 was overflowing. Containment was set up at the storm drain at the northwest corner of 611 Brannick Avenue, at the intersection with Fisher Street. Hydro equipment was used to break down the mainline stoppage caused by heavy grease and rags. The affected areas were cleaned up with fresh water, and all required agencies were notified. 	Other (specify below)	We will inspect sewer using CCTV to determine if further actions are needed.	We will inspect sewer using CCTV to determine if further actions are needed.	We will inspect sewer using CCTV to determine if further actions are needed.	11/02/2024 10:30	We will inspect sewer using CCTV to determine if further actions are needed.	Y	We will inspect sewer using CCTV to determine if further actions are needed.	01/02/2025 12:00	Chavez Ravin-Los Angeles River	River		Chavez Ravin-Los Angeles River	No impact.	Other (specify below)	No impact.	N/A	0	N	N											We will inspect sewer using CCTV to determine if further actions are needed.	
8	8SSO10620	Active	EVMWD Regional Plant CS	Elsinore Valley Municipal Water District	897339	1.1	Certified	Jesus Barron	Collections System Worker III		23-DEC-24	23-DEC-24	Monthly Category 3 Spill	Summerly Force Main Air Vac	11/02/2024 19:53	11/02/2024 20:16	11/02/2024 19:27				Corroded nipple on air vac 	33.66804	-117.32769	Other Sewer System Structure			150	Spill was contained to street/asphalt	N						150	Paved Surface		Sewage spilled from an eroded air vac nipple onto the paved asphalt, but did not reach the curb gutter, or storm drain.										11/02/2024 20:29	SCADA data from the pumps' last run cycle was used, factoring in the duration and the diameter of the failed air vac's closed nipple.	The spill volume was estimated using SCADA data from the pumps' most recent start and stop cycles.	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure		Air Relief Valve (ARV)/ Blow-Off Valve (BOV)		Other (specify below)	Brass	16	The impact was confined to the middle of the street at Diamond Dr. and Malaga Rd., with no effect on the storm drain system, and no sewage entered it.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Both pumps at lift station were shut off to prevent further spilling. Our combination unit and arrived on scene to assist with disinfection and the clean up process. Set up truck downstream and sprayed disinfectant over affected area and washed down to combination truck, was able to perform 100% recovery. 	Repaired Facilities or Replaced Defect		Replaced air vac, nipple and ball valve. 		11/04/2024 11:30	Following an investigation, we discovered that a brass nipple connected to the air vac had eroded due to H2S exposure. The original air vac installation, completed during construction, utilized brass fittings. We have since replaced the eroded nipple with stainless steel and installed a new air vac to prevent this happening again.		N/A	11/04/2024 11:30														N/A	Replace air vac nipple with stainless steel.	N/A	N/A	Replace air vac nipple with stainless steel.	N/A	Documented in our work order system, NexGen. Pictures have also been added for documentation purposes.	N/A	N/A	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	897340	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	05-NOV-24	14-NOV-24	14-NOV-24	Category 1 Spill	1875 Tunnel Road, Oakland Ca	11/01/2024 17:29	11/01/2024 22:30	11/01/2024 17:15	11/01/2024 20:05	24-6177		Manhole was overflowing sewage on a hillside in the back of the property. The sewage was flowing to the bottom street level, where it flowed on the gutter area and into the nearest storm inlet.	37.85805	-122.2226	Manhole			5070	Manhole was overflowing sewage on a hillside in the back of the property. The sewage was flowing to the bottom street level, where it flowed on the gutter area and into the nearest storm inlet.	Y	16  storm main called Temescal creek, it daylighted into a V-ditch in the back of 280 Caldecott Lane.	0	5070	16  storm main called Temescal creek, it daylighted into a V-ditch in the back of 280 Caldecott Lane, and eventually it would reach Lake Temescal.	5070	0	Drainage Conveyance System; Street/Curb and Gutter (2 3); Unpaved Surface		Manhole was overflowing sewage on a hillside in the back of the property. The sewage was flowing to the bottom street level, where it flowed on the gutter area and into the nearest storm inlet.	Y	37.85805	-122.2226							11/01/2024 23:45	Sewage measurement from overhead manhole cover 1  height from manhole 28  cover = 13 gpm 13GPM x 390 minutes = 5,070 gallons	Start time was based on eyewitness account. End time was based on sewer crew restoring the flow in the mainline.	Root Intrusion	Loose tree roots inside 90-degree channel turn in manhole.	Manhole		Other (specify below)	PE.	37	Manhole was overflowing sewage on a hillside in the back of the property. The sewage was flowing to the bottom street level, where it flowed on the gutter area and into the nearest storm inlet, to the Temescal Creek.	Y	Cleaned Up (specify below); Other (specify below); Property Owner Notified; Restored Flow	Staff raked and removed solids from the unpaved area, staff washed and vacuumed in the street in the gutter area. Staff posted Temescal Creek and Temescal Lake with hazardous sewage signs.	Staff raked and removed solids from the unpaved area, staff washed and vacuumed in the street in the gutter area. Staff posted Temescal Creek and Temescal Lake with hazardous sewage signs.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Sewer main line was placed on six-month high frequency cleaning and inspection.	Sewer main line was placed on six-month high frequency cleaning and inspection W.O. 1572177. Main line has been CCTV inspected. It was found in good condition. W.O. 1569564	11/01/2024 23:45	Main line has been CCTV inspected. It was found in good condition. W.O. 1569564. Loose tree roots caused the overflow.	N			Temescal Creek, and Lake Temescal	Stream/Creek		Creek	None.	Other (specify below)	None.	East Bay Regional Parks.	0	Y	N												
9	9SSO10662	Active	County of San Diego CS	San Diego County Dept of Public Works	897350	1.2	Certified	Anthony Hooper	LUEG Program Manager	06-NOV-24	09-DEC-24	09-DEC-24	Category 2 Spill	1022 Ramona Ave	11/01/2024 12:50	11/01/2024 13:15	10/31/2024 18:00	11/05/2024 16:00	24-6238		Initial identification of the spill appeared to be from a blocked private lateral. Operator arrival and inspection found the gravity sewer main was flowing, while the lateral was holding water without spilling. Further investigation and hydro-jetting of the gravity main resulted in the removal of a root mass that restricted flow in the gravity main enough to cause a backup and overflow of private lateral. Homeowner interview determined that the spill was not constant and was only observed during peak flow times in the evening and morning hours.	32.7154	-116.99534	Lateral Clean Out (Private)	N/A	N/A	1200	The spill traveled along the curbline and entered a storm drain west of the intersection of Grand Ave and Jamacha Rd. It then traveled one block south to Piedmont St. where it was vacuumed and returned to the sanitary sewer system.	Y	The spill entered a curb inlet and traveled through the concrete drainage system until reappearing at a clean out basin located west of 9244 Piedmont St.	1200	0			1200	Drainage Conveyance System		The spill traveled along the curbline and entered a storm drain west of the intersection of Grand Ave and Jamacha Rd. It then traveled one block south to Piedmont St. where it was vacuumed and returned to the sanitary sewer system.	Y	32.71545	-116.99533	32.71359	-117.00034					11/01/2024 13:35	Homeowner interviewed to determine duration of spill times. Spill was estimated to flow during peak flow times in the morning and evening hours for a total of 240 minutes @ 5 GPM average. 	Homeowner interviewed to determine visual observation of spill start time. County staff on site observation of spill end time.	Root Intrusion		Gravity Mainline		Vitrified Clay		58	Minimal impact to surrounding area as spill was recovered and returned to the sanitary sewer system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Vaccuum truck was utilized to contain the spill when County staff arrived on site. Gravity main was hydro-jetted to relieve the root blockage. Spill was traced to its end point where a vacuum truck was set-up to capture remaining spill and wash down water used during clean-up efforts.	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		CCTV subject gravity main along with adjacent mains to determine condition and adjust maintenance schedules as needed. Hydro-jet and apply root treatment to gravity mains affected by root intrusion.	CCTV, hydro-jetting and root treatment of gravity mains completed on 11-5-2024 	11/05/2024 16:30	Observed root mass removed from gravity main. Removal of the root mass relieved the blockage and full flow was restored.	N												N													
5S	5SSO10923	Active	Deer Creek CS	El Dorado Irrigation District	897358	1.1	Certified	John Chavers	Collection System Supervisor		03-DEC-24	03-DEC-24	Monthly Category 3 Spill	DC-2024-11-13	11/03/2024 13:06	11/03/2024 13:45	11/03/2024 11:20				See attachments	38.70678	-120.82971	Lower Lateral (Public); Manhole	Cleaning lady reported water seeping from manhole at coordinates given at 1:06. She noted seeping at 11:30.	Clean out at 4282 Golden Center had 2 gallon or less spill in shrub area, Manhole at Forni and Golden center spilled remainder of volume while EIDcrew attempted to clear blockage.	204	See Attachments	Y	Storm drain catch basin	204				200	Building or Structure; Drainage Conveyance System; Paved Surface; Unpaved Surface		See Attachments	Y	38.70671	-120.82962	38.70655	-120.82962	38.70682	-120.8294	38.7066	-120.83055	11/03/2024 16:10	See Attachments Volume introduced to system that spilled secondary manhole plus soil and bark bagged at source manhole and CO	See attachments. Witness, initial caller, interviewed by phone.  Efforts of staff on site caused majority of volume spilled. They witnessed start and stop of that spill 	Debris from Lateral; Debris-Rags; Debris-wipes/Non-disposables		Gravity Mainline		Polyvinyl Chloride (PVC)		40	None	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		See Attachments	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Removed debris, cleaned lines, cleaned and flushed area. CCTV inspection post event to confirm resolution.		11/05/2024 10:51	See attachments		NA	11/05/2024 10:51														NA	NA. Event was believed to be caused by unusual release of debris from private system including non flushable wipes. Maintenance staff there were advised to avoid disposal of such wipes to system and call for assistance with major blockages.	NA	NA	Inspected by thorough CCTV	NA	NA	See attachments	NA	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	896519	2.1	Certified	Kent Vian	Asst. Deputy Director		11-DEC-24	11-DEC-24	Category 2 Spill	NOT-40201153671-FUTURA ST & MISTRAL PL.	09/15/2024 17:18	09/15/2024 17:48	09/15/2024 17:17	09/15/2024 19:49	24-5216		 THE SPILL ORIGINATED FROM MANHOLE#8 EQ#10142646. CREWS WERE ABLE TO RELIVED AND REMOVE HEAVY ROOTS FROM THE MANHOLE AND THE MAIN. GPS COORDINATES ARE 32.94648-117.22337.	32.94648	-117.22337	Gravity Mainline; Manhole	N/A	N/A	1800	THE SPILL BOUNDARIES ARE THE MANHOLE#8, WHERE WE REMOVED HEAVY ROOTS FROM THE WALLS, BASE, AND 8  MAIN. IT EXTENDED TO THE STREET, CURB, AND STORM DRAIN.	Y	THE DRAINAGE CONVEYANCE SYSTEM THAT TRANSPORTS THE SPILL IS MADE OF CONCRETE. THE DIAMETER IS UNKNOWN, BUT WE WERE ABLE TO CAPURED ALL SEWER SPILL AND RETURN THEM TO THE SYSTEM.	1620	0			1620	Drainage Conveyance System; Street/Curb and Gutter (2 3)	N/A	THE SPILL BOUNDARIES APPEARANCE POINT WAS DOWN SOUTHWEST BOUND INTO THE STREET, CURB, AND STORM DRAIN. GPS COORDINATES ARE 32.94648-117.22337.	Y	32.94648	-117.22337							09/15/2024 17:53	THE ESTIMATION IS CALCULATED BY VISUAL METHOD.	THE SPILL START TIME IS WHEN THE DISPATCHER RECEIVES THE CALL FROM THE CONSUMER REPORTING THE SPILL.	Root Intrusion	N/A	Gravity Mainline; Manhole	N/A	Polyvinyl Chloride (PVC)	N/A	39	THE SPILL IMPACT WAS TO THE STREET, CURB AND STORM DRAIN	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	N/A	CREWS RESPONDED, INVESTIGATED, RELIVED, TRACKED DOWN THE FINAL DESTINATION, RETURNED THE SEWER SPILL TO THE SYSTEM, AND WASHED DOWN THE STREET, CURB AND THE STORM DRAIN.	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause	N/A	MANAGEMENT INVESTIGATIONS DETERMINED INSPECTIONS WERE MISSED DUE TO OPEN NOTIFICATIONS (WORK ORDERS) WITH EPM (A SISTER DIVISION). INSPECTIONS ARE NOW BACK ON THE SCHEDULED MAINTENANCE PROGRAM.	NOT AT THIS TIME.	09/16/2024 10:30	MANAGEMENT DETEMINED INSPECTIONS MISSED DO TO OPEN NOTIFICATIONS WITH EPM. 	N	NONE	09/16/2024 12:03										N												NONE	
2	2SSO10094	Active	Belmont CS	Belmont City	897382	1.1	Certified	Brandon Tyler	PW Services Manager		07-NOV-24	07-NOV-24	Monthly Category 3 Spill	2701 Belmont Canyon Road	10/17/2024 11:37	10/17/2024 11:55	10/17/2024 11:37				Manhole located in dirt area at 2701 Belmont Canyon Road	37.51245	-122.315926	Manhole			239	Spill boundaries include; manhole, dirt area, pavement, gutter and storm catch basin. Photos taken of boundary areas	Y	Catch basin located downstream of spill	38				239	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		Manhole, dirt area around manhole, pavement, gutter and storm catch basin	N									10/17/2024 12:22	Duration and Flow Rate Comparison Method & Upstream Connection Method	Start time reported by resident. End time estimated when blockage was cleared	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Other (specify below)	Cured in Place Liner	30	No impact to report	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Placed Dikes to collect spill. Placed mat over storm catch basin	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Will be placed on sewer preventative maintenance program starting November 18th 2024. CCTV & outreach letters to the 28 homes located upstream		11/06/2024 13:22	FOG and root intrusion were responsible for spill		Investigation complete	10/17/2024 14:25														No enforcement action taken	Will be placed on sewer maintenance program list starting November 18th 2024	Sewer preventative maintenance list starting November 18th 2024. CCTV of sewer main. Outreach letters to 28 home located upstream	N/A	N/A	N/A	Placed on sewer preventative maintenance program starting November 18th 2024. CCTV of sewer. Outreach letters regarding FOG	No modifications	Investigation complete	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	897384	1.3	Certified	Ameal McLaurin	Sewer Supervisor 2		22-NOV-24	22-NOV-24	Monthly Category 3 Spill	1801 Tunnel Road, Oakland Ca	10/30/2024 15:00	10/30/2024 17:00	10/30/2024 14:00				Sewage was seeping from the ground on the hillside.	37.85756	-122.22273	Gravity Mainline	Sewage was seeping from the ground on the hillside.		451	Sewage was seeping from the ground on the hillside onto unpaved surface, where some of the sewage soaked into the soil, the sewage flowed down on a retaining wall to tile step building entrance, from there it flowed into the street gutter area, and into a storm inlet where it was contained. The storm pipe was plugged off with dirt and debris. 	Y	Plugged off 1' corrugated storm mainline.	235				241	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		Sewage was seeping from the ground on the hillside onto unpaved surface, where some of the sewage soaked into the soil, the sewage flowed down on a retaining wall to tile step building entrance, from there it flowed into the street gutter area, and into a storm inlet where it was contained. The storm pipe was plugged off with dirt and debris. 	Y	37.85744	-122.22258							11/09/2024 09:27	Calculated volumes: Hillside lost in unpaved surface: 50'L x 6'W x .5 D x 7.48-gal x .1875 = 210 gallons. Recovered from tile paved steps: 20'L x 4'W x .01'D x 7.48-gal =6 gallons Recovered from plugged off storm line: 1' Diameter x 40'L x 3.14 / 4 x 7.48-gal = 235 gallons. Total spill: 210 + 6 + 235 = 451 gallons Total recovered: 6 + 235 = 241 Total lost in unpaved soil: 451 - 241 = 210 gallons	Start time was based on eyewitness account. End time was based on responding sewer crew restoring the flow in the mainline.	Root Intrusion		Gravity Mainline		Vitrified Clay		125	Sewage was seeping from the ground on the hillside onto unpaved surface, where some of the sewage soaked into the soil, the sewage flowed down on a retaining wall to tile step building entrance, from there it flowed into the street gutter area, and into a storm inlet where it was contained. The storm pipe was plugged off with dirt and debris. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Washed down and recovered the sewage from the spill areas in street, walkway, and storm line.	Washed down and recovered the sewage from the spill areas in street, walkway, and storm line.	Added Sewer to Preventive Maintenance Program; Post Spill CCTV		Mainline has been added to a 3-month hydro high frequency maintenance program, W.O. # 1452251.		11/09/2024 17:11	Responding sewer staff found root intrusion to have been the potential cause of the overflow, CCTV inspection confirmed the same root intrusion cause.		N/A	11/09/2024 17:11														N/A	Mainline has been added to a 3-month hydro high frequency maintenance program.	Mainline has been added to a 3-month hydro high frequency maintenance program.	N/A	CCTV inspection found root intrusion blockage in the mainline.	N/A	Mainline has been added to a 3-month hydro high frequency maintenance program., W.O. # 1452251	Mainline has been added to a 3-month hydro high frequency maintenance program., W.O. # 1452251	N/A	
9	9SSO10674	Active	City of Oceanside Collection System, La Salina WWTP	Oceanside City	897386	1.2	Certified	Mike Dumas	Senior Utility Worker		07-NOV-24	07-NOV-24	Monthly Category 3 Spill	Avenida de la Plata / Avenida de Sevilla	11/06/2024 15:30	11/06/2024 15:45	11/06/2024 15:30				city main line blockage located at Avenida de la Plata / Avenida de Seville resulted in manhole to over flow into the gutter then to a storm drain box	33.21711	-117.28267	Manhole			600	manhole spilled into the gutter and ran down the street and around corner into a storm drain box where the water was trapped by debris blocking the storm drain pipe	Y	storm drain box	600				600	Drainage Conveyance System		manhole spilled into the gutter and ran down the street and around corner into a storm drain box where the water was trapped by debris blocking the storm drain pipe and fully recovered and returned to sewer system	Y	33.21551	-117.2811							11/06/2024 16:00	manhole overflow gauge 	spill start at 1530 estimated at 20gpm and ended at 1600	Debris from Construction; Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Polyvinyl Chloride (PVC)		36	ran down curb and gutter into a storm drain box was fully captured  no impact	N	Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		broke stoppage, swept  curb and gutter, cleaned out storm drain box	Inspected Sewer Using CCTV to Determine Cause		cctv line to determine cause		11/06/2024 18:26	After CCTV of the sewer main there is no defect in the pipe. The cause of the spill was due to the 2x4 that came down the line got wedged and built up some grease and caught some roots that had traveled down the line. Crews checked area for open manholes and everything was closed up and appeared to be normal.		CCTV of pipe	11/07/2024 13:00														n/a	after CCTV of the pipe we will determine if we need modifications	if finds show sign of needed scheduled maintenance if will be scheduled	n/a	will inspect and repair if necessary	n/a	n/a	n/a	CCTV of pipe	
5S	5SSO10958	Active	Grass Valley City CS	Grass Valley City	897388	1.2	Certified	Bjorn Jones	City Engineer		12-NOV-24	12-NOV-24	Monthly Category 3 Spill	446 Glenwood Rd	10/25/2024 08:28	10/25/2024 09:09	10/25/2024 08:00				Manhole	39.24067	-121.04173	Manhole			100	Spill was contained to unpaved surface next to manhole.	N						100	Unpaved Surface		Spill was contained to unpaved surface next to manhole.	Y	39.24067	-121.04173							10/25/2024 09:30	Visual observation.	Visual observation.	Debris-General		Gravity Mainline		Vitrified Clay		60	Spill was contained to unpaved surface next to manhole. All volume was recovered. Area was cleaned and disinfected.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Spill was contained to unpaved surface next to manhole by creating berms. All volume was recovered. Area was cleaned and disinfected using vacuum and 1% bleach solution.	Added Sewer to Preventive Maintenance Program		Sewer mainline is in our CMMS and has PM work orders generated for cleaning line.		10/25/2024 09:45	The mainline had a blockage from an unknown material/source. The line was cleared by jetting and flow was restored.		NA	10/25/2024 09:45														NA	NA	NA	NA	NA	NA	NA	NA	NA	
8	8SSO10543	Active	Beaumont City CS	Beaumont City	897389	1.1	Certified	Jerome Moledor	Wastewater collections supervisor		07-NOV-24	07-NOV-24	Monthly Category 3 Spill	Carnation and Snapdragon	11/05/2024 09:33	11/05/2024 09:42	11/05/2024 08:58				the spill appearance point was a manhole to the North East of the intersection of Snapdragon and Carnation.	33.9383	-116.96178	Manhole			375	The spill went from the manhole to the North East of the intersection of Snapdragon and Carnation. To the East to a near by Gutter plate. Then South and eventually East down Carnation approx 2000'. The spill was damned off before a storm drain intel on Carnation. 	N						375	Paved Surface; Street/Curb and Gutter (2 3)		The spill went from the manhole to the North East of the intersection of Snapdragon and Carnation. To the East to a near by Gutter plate. Then South and eventually East down Carnation approx 2000'. The spill was damned off before a storm drain intel on Carnation. 	Y	33.93494	-116.95848							11/05/2024 10:15	Spill volume estimation was made based on comparison with manhole overflow gauge pictures, times total run time. 	Spill start time was made by calculating speed of flow, then working back to a start time based on time and total footage of spill area. Spill end time was just after the blockage was freed. 	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Polyvinyl Chloride (PVC)		17	Impact of spill was only to the street and gutter plate. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		When the city became aware of the possible spill, phone calls were made to get the proper equipment on site while initial responder was in transit. Once on site the manhole that was spilling was located, and the flow of the spill was traced down the street. The spill had not made it to a storm drain inlet yet, so an earth dam was built to stop the flow before the storm drain inlet. The cities Jetter was tasked with finding where the blockage was, and relieving the blockage while the cities vacuum truck was sent to the area of the Earth dam to vacuum up all of the flow. After the spill blockage was relieved. The line was shot multiple times, and then we moved to clean up. The entire spill area from the spilling manhole to the Earth dam was washed down into the vacuum truck. Afterwards the entire spill area was disinfected with a diluted chlorine solution. All of the spill was collected, including wash down water, and was returned to the sewer system	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Added to line list that is cleaned more often.		11/06/2024 16:30	After line was cleaned it was CCTVed. The blockage was found to be roots in the area of a manhole. The roots collected wipes, grease, etc and caused the spill.		NA	11/06/2024 16:30														NA	Added to line list that is cleaned more often.	Added to line list that is cleaned more often.	NA	NA	NA	NA	Added to line list that is cleaned more often.	NA	
9	9SSO10652	Active	City of La Mesa CS	La Mesa City	897392	1.3	Certified	Joe Kuhn	Environmental Manager		21-JAN-25	21-JAN-25	Monthly Category 3 Spill	7111 Waite Dr	11/06/2024 13:00	11/06/2024 13:20	11/06/2024 13:20				Lateral Cap at 7111 Waite Dr. (Private Property)	32.7461	-117.0448	Lateral Clean Out (Private)			165	Spill was contained in planter boxes	N						165	Unpaved Surface		Spill was contained in planter boxes										11/06/2024 13:55	Visual Observation Estimation	Noted by Field Staff	Debris-Rags		Gravity Mainline		Vitrified Clay		70	None, cleaned up by 3rd Party contractor	N	Cleaned Up (specify below)		Line was cleared and spill was isolated into planter boxes.  3rd party contractor Harmony Environmental performed clean up. 	Other (specify below)	Rags.  Isolated incident. 	Rags.  Isolated incident. 		11/06/2024 17:30	Rags		N/A	11/06/2024 17:30														None	None	None	N/A	N/A	N/A	N/A	N/A	N/A	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	897394	1.1	Certified	David Leamer	Assistant Superintendent		15-NOV-24	15-NOV-24	Monthly Category 3 Spill	350278	10/14/2024 13:18	10/14/2024 14:19	10/13/2024 01:00				See Attached Spill map with Photos.	38.43526	-121.42801	Lateral Clean Out (Public)		spill from 2 separate residents clean outs at  6500 & 6501 Blue rock Ct	87	See Attached Spill Map with Photos	Y	See Attached Spill map with Photos.	71				79	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		See attached Spill Map with Photos.	Y	38.43528	-121.42804	38.43537	-121.42805	38.43615	-121.42822			10/14/2024 14:19	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Damage by Others Not Related to Collection System Construction/Maintenance		Gravity Mainline		Vitrified Clay		31	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		See Attached Description of Spill Event	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		SacSewer inspected mainline with CCTV on 10/18/24 after repairs were made. Based on findings, TVI shows mainline in fair condition and no other issues found. No cleaning PM needed at this time. Current inspection PM is sufficient.		10/14/2024 19:30	SacSewer crews found lateral had been bored through 10ft from downstream manhole. ML damaged by communication conduit line. Service restored, repair made, spill recovered and mitigated.		None	10/14/2024 19:30														N/A	TVI shows mainline in fair condition and no other issues found. No cleaning PM needed at this time. Current inspection PM is sufficient.	TVI shows mainline in fair condition and no other issues found. No cleaning PM needed at this time. Current inspection PM is sufficient.	N/A	SacSewer inspected mainline with CCTV on 10/18/24.	N/A	SacSewer made repair in mainline from damage created by others. TVI shows mainline in fair condition and no other issues found. No cleaning PM needed at this time. Current inspection PM is sufficient.	N/A	None	
2	2SSO10209	Active	Union S.D. CS	Union Sanitary District	897100	2.1	Certified	Jose Rodrigues	Collection Services Manager	22-OCT-24	07-NOV-24	07-NOV-24	Category 2 Spill	38622 Lexington Street	10/17/2024 08:20	10/17/2024 08:53	10/16/2024 17:30	10/17/2024 11:49	24-5884		USD Manhole X17008  See attachment 	37.551486	-121.990289	Manhole	N/A	N/A	5119	The spill coming out of USD Manhole X17008 traveled towards the curb and gutter on the western side of Lexington St, eventually reaching the storm drain inlet at the southwest corner of Lexington St and Monroe Ave (@ Lattitude: 37.55120, Longitude: -121.989985). The spill continued through the storm system to a storm manhole approximately 33 feet away on the northwest side of the intersection of Lexington St and Monroe Ave (@ Latitude: 37.55123, Longitude: -121.98978) before it drained 20 feet towards Mowry Ave (@ Lattitude: 37.551207, Longitude: -121.989713)   into a flood canal. The final destination of the spill was located before the Bell St overpass located at (Lat: 37.54947, Long: -121.99200) See attached details included in the  Lexington Spill Response Form  document and the Lexington Spill Map.   	Y	The drainage conveyance system entry location was a drain inlet located on the southwest corner of Lexington St and Monroe Ave. (Latitude: 37.55120, Longitude: -121.989985)  	4856	0			5119	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)	N/A	The spill coming out of USD Manhole X17008 traveled towards the curb and gutter on the western side of Lexington St, eventually reaching the storm drain inlet at the southwest corner of Lexington St and Monroe Ave (@ Lattitude: 37.55120, Longitude: -121.989985). The spill continued through the storm system to a storm manhole approximately 33 feet away on the northwest side of the intersection of Lexington St and Monroe Ave (@ Latitude: 37.55123, Longitude: -121.98978) before it drained 20 feet towards Mowry Ave (@ Lattitude: 37.551207, Longitude: -121.989713)   into a flood canal. The final destination of the spill was located before the Bell St overpass located at (Lat: 37.54947, Long: -121.99200) See attached details included in the  Lexington Spill Response Form  document and the Lexington Spill Map.    	Y	37.5512	-121.989985	37.55123	-121.98978	37.551207	-121.989713	37.54947	-121.992	10/17/2024 09:25	We used the measured volume method. (See the details included in the following attached documents: Lexington Spill Response Form, Lexington Spill Volume by Area Estimation Worksheet_Street Calculations, Lexington Spill Volume by Area Estimation Worksheet_Curb and Gutter Calculations, Lexington Spill Volume by Area Estimation Worksheet_Flood Control Calculations)         See Amendment Report for Updated Spill Volume Estimations and flow monitoring data.	We based our start time on the information we received while we interviewed a resident who was in the area during the time we believe the spill to have begun (See attached details included in the  Lexington Spill Response Form  document).    The spill end time was at 9:25AM when the blockage was cleared in sewer main X17008-X17005.	Fats, Oil and Grease (FOG); Root Intrusion	N/A	Gravity Mainline	N/A	Vitrified Clay	N/A	56	Street curb and gutter, drainage conveyance system and flood canal. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	N/A	See attached details included in the  Lexington Spill Response Form  document  	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer; Post Spill CCTV	N/A	Sewer main (X17008-X17005) will be on a modified cleaning schedule. This structure will be added to a 12-month Hydro Saw cleaning schedule for grease. The root intrusion that came through a fracture in the VCP will be repaired as necessary (See attached details included in the  Lexington Spill Response Form  document).  	(See attached details included in the  Lexington Spill Response Form  document).  See Amendment Report on updated finds from flow meter testing.	10/17/2024 17:30	A CCTV Inspection was performed on sewer main (X17008-X17005) to identify the cause of the spill. Roots were found 118 feet downstream of USD MH # X17008, with water staining indicating the blockage.	Y	Since this is the start of the line and the only structure contributing to this spill, we will be installing a flow meter at USD manhole X17005 to determine the flow rate coming from this structure during the same time of day and over the same period of time to see what the volume is. There were also several areas of water coming from nearby apartment irrigation systems leaking into the drainage conveyance system adding to the standing water in the flood control canal.          See attached Amendment Report for Updated Spill Volume Estimations & details that support our amendment.	11/07/2024 08:00										N												Since this is the start of the line and the only structure contributing to this spill, we will be installing a flow meter at USD manhole X17005 to determine the flow rate coming from this structure during the same time of day and over the same period of time to see what the volume is. There were also several areas of water coming from nearby apartment irrigation systems leaking into the drainage conveyance system adding to the standing water in the flood control canal.          See attached Amendment Report for Updated Spill Volume Estimations & details that support our amendment.	
3	3SSO10324	Active	Santa Cruz County CS	Santa Cruz County Public Works	897409	1.1	Certified	Ramon Sandoval	Assistant Superintendent 		08-NOV-24	08-NOV-24	Monthly Category 3 Spill	3115 Salisbury Drive	10/09/2024 07:10	10/09/2024 07:32	10/08/2024 15:40				Spill originated from private cleanout in the backyard of property address 3115 Salisbury Drive.	36.98877	-121.98721	Lateral Clean Out (Private)			680	Spill discharged from private cleanout in the backyard of property address 3115 Salisbury Drive onto unpaved surface area along the fence of the property then onto paved surface area. Homeowner built a berm to redirect spill path towards an onsite private drainage system, that has a 6-inch drainage pipe that outfalls at the rear of the property and spill flowed back into the sewer trench zone at the location of the new sewer manhole EB66.	N						67	Other (specify below); Paved Surface; Unpaved Surface	Trench zone	Spill discharged from private cleanout in the backyard of property address 3115 Salisbury Drive onto unpaved surface area along the fence of the property then onto paved surface area. Homeowner built a berm to redirect spill path towards an onsite private drainage system, that has a 6-inch drainage pipe that outfalls at the rear of the property and spill flowed back into the sewer trench zone at the location of the new sewer manhole EB66.	Y	36.98873	-121.98726	36.98875	-121.98759					10/08/2024 17:25	To determine the spill volume, the flow rate and volume out of an opening spreadsheet was used. The opening of the cleanout was measured at 2-1/4 inches. The discharge height was approximately 1/2 inch.	Contractor installed a flow through plug into manhole EB31at 1430 with flow still being diverted to another manhole. R/P first noticed spill exiting out of private cleanout just before 1600.  Based on the impact at the time that the R/P first noticed the spill it was determined that it started at 1540 on 10/08/2024.	Construction Diversion Failure		Gravity Mainline		Other (specify below)	ACP Pipe	60	Impact from the spill was contaminated potting soil in the backyard of property 3115 Salisbury drive.	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow		Spill occurred on 10/8/2024, The agency was notified on 10/9/2024. Upon arrival on that day the spill was not active, and spill had impact was on potting soil. Contractor Anderson Pacific removed three wheelbarrows of contaminated soil and wrapped them up in plastic garbage bags for disposal at the landfill. 	Other (specify below)	Contractor will have a standby worker monitor bypass during flow diversion to ensure that it will not backup.	Contractor will have a standby worker monitor bypass during flow diversion to ensure that it will not backup.		10/09/2024 16:30	Contractor diversion failure during bypass while working on the Arana trunk line replacement project.		No	10/09/2024 16:30														No	No	No	In progress as part of the Arana trunk line rehab project replacement.	No	Yes	Inspector discussion with contractor for bypass operation.	No	No	
2	2SSO10110	Active	Los Altos City CS	Los Altos City	897410	1.1	Certified	Grant Gabler	Maintenance Superintendent		06-DEC-24	06-DEC-24	Monthly Category 3 Spill	Deodora	11/02/2024 08:31	11/02/2024 09:20	11/02/2024 08:15				Spill appeared at manhole M6S-601 in the street in front of 2171 Deodora Dr. 	37.33818	122.06991	Manhole	NA	NA	199	video of overflow	Y	spill entered drain inlet in gutter but was captured at a downstream manhole	199				199	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Spill appeared at manhole M6S-601 in the street in front of 2171 Deodora Dr.  Spill ran down the curb and gutter and entered into the drain inlet.  Spill was captured at a downstream storm manhole.  Area was washed and vacuumed.  Spill and wash water were returned to the sewer system.	Y	37.33818	-122.06991							11/02/2024 09:36	Measured spill area.  Made calculations using measured volume worksheet.  Assumptions include depth of spill on hard surfaces.  	Relied on witness statements to estimate spill start time	Root Intrusion		Gravity Mainline		Vitrified Clay		70	Spill appeared at manhole M6S-601 in the street in front of 2171 Deodora Dr.  Spill ran down the curb and gutter and entered into the drain inlet.  Spill was captured at a downstream storm manhole.  Area was washed and vacuumed.  Spill and wash water were returned to the sewer system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Spill appeared at manhole M6S-601 in the street in front of 2171 Deodora Dr.  Spill ran down the curb and gutter and entered into the drain inlet.  Spill was captured at a downstream storm manhole.  Area was washed and vacuumed.  Spill and wash water were returned to the sewer system.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Added to annual root cutting maintenance list		11/20/2024 08:07	Post spill CCTV found heavy roots.  Segment was root cut and has been added to annual root cutting maintenance list.		NA	11/19/2024 14:41														NA	Root cut annually	Added to annual root cutting maintenance list	NA	Post spill CCTV	NA	see attached	NA	NA	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	897412	1.1	Certified	David Leamer	Assistant Superintendent		15-NOV-24	15-NOV-24	Monthly Category 3 Spill	349901	10/04/2024 11:02	10/04/2024 12:23	10/04/2024 11:30				See Attached Spill map with Photos.	38.51959	-121.45961	Manhole			207	See Attached Spill Map with Photos	Y	See Attached Spill map with Photos.	203				205	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		See attached Spill Map with Photos.	Y	38.51922	-121.45964	38.51857	-121.45821					10/04/2024 13:10	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		69	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		See Attached Description of Spill Event	Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Post Spill CCTV	TV in 12 Months	SacSewer inspected mainline with CCTV on 10/11/24. Based on findings, SacSewer to TV inspect in 12 months for PM evaluation.		10/04/2024 13:10	Grease in the mainline at 5834 41st Street caused a partial blockage in the mainline and SacSewer manhole (MH 310-152-1075) to spill. Line was cleaned and TV inspected. 		None	11/04/2024 13:10														N/A	SacSewer to re-TV in 12 months for PM evaluation.	SacSewer to re-TV in 12 months for PM evaluation.	N/A	SacSewer inspected mainline with CCTV on 10/11/24.	N/A	SacSewer to TV in 12 months for PM evaluation.	N/A	None	
5S	5SSO10901	Active	City of Sacramento Utilities CS	Sacramento City	897414	1.1	Certified	Kevin Guerra	Superintendent		12-NOV-24	12-NOV-24	Monthly Category 3 Spill	7788 FREEPORT BLVD, SACRAMENTO 95832	10/10/2024 16:10	10/10/2024 16:33	10/10/2024 16:00				The spill had two appearance points, both were manholes. They were located along a frontage road near a canal.  The spill made it to the unpaved surface where it was contained in dirt on the shoulder of the road.	38.47448	-121.50641	Manhole			63	Spill left the two manholes in the roadway and traveled east and west where it was contained in unpaved areas on the shoulder of the Roadway.	N		0				63	Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		The spill was contained within 20 feet of each manhole in soil just off the roadway in two different areas.	Y	38.47318	-121.50573							10/10/2024 16:52	The spill was trapped on the surface, we squared off and took measurements of the length, width, and depth in the multiple areas the spill was trapped in. We then entered these measurements into a spill calculator to get the estimated total. We added those totals together to get the total  gallons calculation.	We received a call from city staff that was onsite for a project, they watched as the spill started and traveled to the unpaved surfaces.   We calculated the spill end time by using the responders time they unplugged the main.	Fats, Oil and Grease (FOG)		Gravity Mainline		Polyvinyl Chloride (PVC)		38	There were no impacts to the environment nor sewer service to our customers.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		The spill was not active upon arrival, and had already started to dry in different areas. The responder took pictures and  unplugged the main upon arrival. We used a Jet/Vacuum truck to remove the spill along with the water used to clean the area and returned it to the sewer system.	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Main is on one month cleaning cycle.		10/10/2024 22:23	Prior to the spill occurring an arrangement had been made to clean the main the day after the spill happened, this was due to a contractor on site. Moving forward if there will be any obstacle or project that will affect access to this main it will be cleaned off cycle prior to the due date,		No	10/23/2024 13:43														N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	No	
4	4SSO10449	Active	Thousand Oaks Municipal Service Center	Thousand Oaks City 	897419	1.2	Certified	Patrick McCulloch	Utilities Maintenance Supervisor	08-NOV-24	14-NOV-24	14-NOV-24	Category 1 Spill	3303 Kimber Drive, Newbury Park Ca 91320	11/08/2024 08:22	11/08/2024 08:50	11/08/2024 08:22	11/08/2024 09:48	24-6297		Spill overflowed from a single point at a private cleanout in the shopping center parking lot located at 3303 Kimber Drive, Newbury Park, Ca 91320. 	34.17616	-118.94614	Lateral Clean Out (Private)	N/A	None. 	590	Spill boundaries include shopping center parking lot and storm drain conveyance system. 	Y	The private catch basin flows into the City catch basin on Kimber Drive, which is connected to the RCP storm drain system. This system flows downstream and connects to Newbury Park Drain No. 1 natural waterway, which ultimately leads to the South Branch Arroyo Conejo waterway.	200	0	Underground RCP that discharges to open channel waterway. 	340	250	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Other (specify below)	Private parking lot and private cleanout. Private storm drain catch basin. City catch basin. Storm drain conveyance system on Kimber Drive that connects to Wendy Drive storm drain conveyance. The Wendy Drive connects to the surface water/South Branch Arroyo Conejo. 	Private parking lot and private cleanout. Private storm drain catch basin. City catch basin. Storm drain conveyance system on Kimber Drive that connects to Wendy Drive storm drain conveyance. The Wendy Drive connects to the surface water/South Branch Arroyo Conejo. 	Y	34.17616	-118.94614							11/08/2024 10:20	The methodology used was estimating SSO flow out of cleanout in the parking lot. The flow out of the cleanout was estimated to be approximately 5 gallons per minute. The spill was calculated based on time spill was reported and the time the stoppage/blockage was cleared. 118 minutes multiplied by 5 GPM. Spill recovered was estimated by the contained spill in the parking lot that was vacuumed and cleaned, and the vacuuming and removal of debris/liquids from the catch basin/storm drain conveyance system on Kimber Drive. 	Spill start time was estimated at 8:22 A.M. when the spill was noticed by a City employee and spill end time was at 10:20 A.M. when the stoppage was cleared. 	Fats, Oil and Grease (FOG)		Gravity Mainline	N/A	Other (specify below)	Asbestos Cement Pipe.	55	The spill impacted the private parking lot of shopping center. Spill spread was amplified by car traffic driving through and portion of spill entered a private storm drain connected to the City storm drain.  Impacted the City's storm drain conveyance system and receiving water way South Branch Arroyo Conejo. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Vacuumed debris and liquids from private parking lot. Washed down private driveway. Vacuumed and washed down private catch basin. Vacuumed and washed down City catch basin/storm drain conveyance system on Kimber Drive	Standby staff arrived at 8:50 A.M. to observe the stoppage. He returned to the City yard to obtain sandbags and set out sandbags around private storm drain grate and parking lot around 9:30 A.M.  Another staff member arrived with the hydro combination truck just after 10:10 A.M. and broke the stoppage/blockage at 10:20 A.M. Staff then vacuumed up the pooled-up sewage in the parking lot while washing down the private driveway with high-pressure water hose. Private storm drain grate then vacuumed and cleaned. Staff then vacuumed and cleaned the City storm drain grate/storm drain conveyance system on Kimber Drive, removing all the debris and liquids. Staff checked on storm drain conveyance system. Five signs were placed downstream where it made its ways to open channel. Signs placed on Borchard Rd., Theresea Drive, and on Michael Drive that have access points to open channel waterways. 	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		We are moving the cleaning maintenance schedule from 2-years to a 3-month schedule.  Water Quality Department monitoring restaurant grease interceptors. 	Schedule change for maintenance effective immediately.  Monitor restaurant's maintenance records on grease interceptors.  	11/13/2024 09:20	Staff observed grease 25 feet up when breaking the stoppage. Hydro cleaned the surrounding area and grease localized in segment of blockage. CCTV inspection performed on 11/12/2024 found grease spots at the 9 and 3 position throughout the last 180 feet. Staff re-hydro cleaned to remove the rest of the remaining grease on 11/12/2024.   Water quality investigated several restaurants located in the shopping center. Found that some had no grease interceptors due to being grandfathered in. Additionally, it was found that some of the restaurants with grease interceptors could not locate maintenance records during site visit between 11/13/2024 and 11/14/2024.	N		11/14/2024 10:04	South Branch Arroyo Conejo	Stream/Creek		Newbury Park Storm Drain Number 1 that feeds to the South Branch Arroyo Conejo. These are natural channels that storm drain conveyance system flows into. 	No observed impacts. 	Restricted Public Access	Put out Warning contaminated with sewage keep out signs at entry points to surface water channels on Borchard Drive, Theresea Street, and Michael Drive. 	City of Thousand Oaks	4	N	N	N/A	N/A										
2	2SSO10125	Active	Cupertino SD CS	Cupertino Sanitary District	897422	1.2	Certified	Benjamin Porter	District Manager		30-NOV-24	30-NOV-24	Monthly Category 3 Spill	10576 Merriman Road Cupertino, CA 95014	10/28/2024 23:08	10/28/2024 23:55	10/28/2024 23:08				Spill originated from the Property Line Clean Out servicing the address 10576 Merriman Road Cupertino, CA 95014. 	37.3147	-122.06986	Lateral Clean Out (Public)			170	Property Line Cleanout spill had a total length of 26.5 feet and average width of 6 feet. See attached measurement calculations and photos.	N						3	Unpaved Surface		Front lawn: on soil, near plants and inside Christy box. 3 gallons inside the Christy box were recovered.	N									10/28/2024 23:55	There was not an active spill upon arrival. Actual spill start time was not confirmed by the caller. So, we used Measured Spill Volume Method. Approximately 3 gallons of sewage was recovered from the Christy Box.	Assumed that depth of spill remains consistent at each  zone . See attached measurements and calculations sheet. 	Root Intrusion	Heavy roots in lower lateral	Lower Lateral		Vitrified Clay		67	Spill contained within Christy Box and soil at the front lawn area	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Christy Box was vacuumed and returned to sanitary sewer system. Lower Lateral was cleared and flow restored. Even though the spill occurred on the property and affected the soil. Despite the contamination, the homeowner has explicitly expressed a preference not to have the spill cleaned or remediated at this time.	Added Sewer to Preventive Maintenance Program; Post Spill CCTV		Spill in Christy Box was vacuumed by Inspector. Roots were removed from lower lateral by Contractor (ABLE). Post CCTV inspection was conducted and Lateral was placed on the District's Lateral Maintenance schedule.		10/29/2024 04:00	Lateral had no cleaning history. After spill occurred, District determined blockage was caused by lower lateral root intrusion. Contractor removed the roots and District Staff CCTV'd the lateral to confirm root removal. Lateral has been placed on District's Lateral Maintenance Program.		N/A	10/29/2024 04:00														N/A	Lateral was placed on the District's Lateral Maintenance schedule.	Lateral was placed on the District's Lateral Maintenance schedule.	N/A	CCTV inspection showed the overall lateral pipe condition was good. No structural improvements needed. 	Not Applicable 	Lateral Maintenance Schedule is tracked on Lucity. A work order was created on Lucity to track spill event and corrective actions. Contractor will provide District with an invoice for assisting with spill clean up and lateral root removal.	Spill in Christy Box was vacuumed by Inspector. Roots were removed from lower lateral by Contractor (ABLE). Post CCTV inspection was conducted and Lateral was placed on the District's Lateral Maintenance schedule.	N/A	
5S	5SSO11061	Active	Sutter Creek CS	Sutter Creek City	897432	1.1	Certified	Daniel Lafontaine	Public Works Director		12-NOV-24	12-NOV-24	Category 2 Spill	110 Raylan Dr	11/10/2024 10:00	11/10/2024 10:20	11/10/2024 06:00				Manhole MH-221 overflowed in Rayland Dr.  	38.38843	-120.80612	Manhole			1250	Spill showed out of pick hole in manhole.  Spill ran down side of old Rte. 49.	N	Spill reached drainage ditch and ran along highway until being stopped by a waddle at the bottom of the hill. 					1000	Paved Surface; Unpaved Surface		Spill went from the manhole to the bottom of the Hwy and was caught in a waddle and in the road drainage.	N									11/10/2024 10:20	Length of time spiling and area of spill estimated the spill between 500 and 1250.  We reported the top estimate as we are unsure the time it started but assume it was not the previous day.	Water out of pick hole at a height of 1/4-inch (53 gph) assume worst case scenario of 24 hours leaking (most likely less) makes the calculation 24 hours * 52 gph gives 1,248 gallons	Debris-Rags; Other (specify below)	Rocks and rags built up and caused plug	Manhole		Vitrified Clay		75	Spill ran down side of Hwy and eventually was stopped at the bottom of the hill.	N	Cleaned Up (specify below); Contained All or Portion of Spill		Hydro was used to try and break up blockage.  Hydro failed and emergency response was called to 	Plan Rehabilitation or Replacement of Sewer		The manhole is a drop manhole and has had issues before approximately 6 months ago. This main is scheduled to be replaced this fiscal year. 	Known issue working on pricing for replacing and eliminating the drop inlet.	11/12/2024 10:00	Basin above is under investigation and currently have flow monitoring installed in the mains to pin point I&I.	Y	We have known this is a problem area and we were currently scoping the problem before this spill occurred.	01/31/2025 10:21										N												We have known this is a problem area and we were currently scoping the problem before this spill occurred.	
2	2SSO10134	Active	Fairfield, Unincorporated Area CS	Fairfield City	897435	1.2	Certified	George R Shimboff	Public Works Manager		13-NOV-24	13-NOV-24	Monthly Category 3 Spill	855 E Tabor Ave	10/18/2024 20:34	10/18/2024 20:58	10/18/2024 20:34				The spill originated at the intersection of the private lateral from 855 E. Tabor Ave and the public gravity mainline on Sunset Ave at manhole #X20-410. The cause was a mop handle protruding from the private lateral into the public gravity mainline, which led to a buildup of solids and a temporary blockage of flow. The spill had one appearance point: a private cleanout located in an asphalt parking lot at 855 E. Tabor Ave. This was the sole appearance point, with no additional locations. The GPS coordinates for the appearance point are 38.263589 (latitude) and -122.020389 (longitude). Please see the attached photos for visual documentation.	38.263589	-122.020399	Lateral Clean Out (Private)	N/A	N/A	67	From the appearance point, the discharge traveled 44 feet to the private storm drainage system at DI#1, continued through the system past DI#2, and ultimately reached a total distance of 187 feet before ending in the catch basin at DI#3. The attached photographs document the spill's origin, appearance point, and path through the drainage system, illustrating the extent and boundaries of the spill.	Y	The drainage conveyance system transporting the spill is a private system consisting of 16-inch concrete piping. It includes three catch basins, each measuring 3 feet by 2 feet. The spill entered this system at DI#1, traveled through the system past DI#2, and ended in the catch basin at DI#3.	42				67	Drainage Conveyance System; Paved Surface	N/A	The spill traveled into a private drainage conveyance system comprising a 16-inch concrete pipe with three catch basins (3' x 2'). It entered the system at DI#1, passed DI#2, and reached its furthest point at DI#3, where it was contained. The spill did not spread beyond DI#3, as the floor of this catch basin is lower than the downstream outlet, preventing further movement. All sewage was successfully contained within this drainage system and subsequently returned to the collection system.  The GPS coordinates for the spill�s appearance point are 38.263589 (latitude) and -122.020389 (longitude), and the coordinates for DI#3, where the sewage was stopped, are 38.263100 (latitude) and -122.020549 (longitude). Photographs document the drainage system and containment point.	Y	38.263586	-122.020562	38.2631	-122.020549					10/18/2024 21:03	The estimation of spill volume relied on visual indicators like staining, debris, and eyewitness accounts. We also referred to the math worksheet section E4: Pg 2 for calculations. 	We base our estimations of the spill start time and end time on the data provided by witness statements, city notification, and operator time of arrival.	Inappropriate Discharge to Collection System	N/A	Gravity Mainline	N/A	Vitrified Clay	N/A	53	The spill resulted in the release of untreated sewage from a private lateral cleanout down 44 feet into a private drainage conveyance system, traveling approximately 187 feet through three catch basins before being contained at DI#3. The sewage did not enter any public waterway or environmentally sensitive areas, as it was contained within the drainage system. No adverse impacts to public health or the environment were observed, as the sewage was promptly removed and returned to the collection system. Cleanup measures included disinfection of affected areas to mitigate any potential contamination. No long-term impacts are anticipated due to the swift containment and remediation efforts.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	N/A	Upon notification of the spill, responding operators promptly arrived on site to assess the situation. The operators successfully contained the entire spill within the private drainage conveyance system, preventing any discharge into public waterways. Cleanup activities included removing all sewage from the affected area, fully restoring flow in the sanitary sewer system, and disinfecting impacted surfaces to mitigate any potential health risks. All spilled material was returned to the sanitary sewer system to ensure proper treatment. The property owner at 855 E. Tabor Ave was notified of the incident and the response actions taken. 	Inspected Sewer Using CCTV to Determine Cause	N/A	After containment and cleanup of the spill, responding operators conducted a CCTV inspection of the sewer line to determine the root cause. The inspection identified a blockage due to a foreign object obstructing the private lateral connection. Immediate corrective action included removing the obstruction to restore flow and conducting a full cleaning of the affected line segment.		10/19/2024 00:15	The investigation into the cause of the spill included a thorough CCTV inspection of the sewer lines to trace the source of the blockage. The inspection revealed that the spill was caused by a broomstick that had been inappropriately introduced into the private sewer system. The broomstick traveled down the private lateral to the city�s connection point, where it became lodged against the line side of the sewer main. This obstruction caused debris to accumulate in the lateral and main, resulting in a backup that eventually overflowed from the private lateral cleanout in an asphalt parking lot at 855 E. Tabor Ave.  The findings indicated that the blockage was due to a foreign object introduced into the private sewer system. Corrective actions, including removal of the obstruction and education for property owners on proper disposal practices, have been recommended to prevent future occurrences.		None	10/21/2024 09:00														None	None	None	None	Inspected line segment. 	None	N/A	None	None	
8	8SSO10543	Active	Beaumont City CS	Beaumont City	897436	1.2	Amended	Jerome Moledor	Wastewater collections supervisor	13-NOV-24	21-NOV-24	21-NOV-24	Category 1 Spill	Olivewood lift station	11/10/2024 10:25	11/10/2024 10:52	11/10/2024 07:00	11/10/2024 12:45	24-6335	21-NOV-24	Spill appearance point was two Manholes next to a lift station.	33.94044	-117.03227	Manhole		second manhole next to main appearance point	38250	The spill went from appearance point into first concrete partially filled storm basin. Then to second partially filled storm basin. The second basin has a outfall to a dry non-flowing wash bed.	Y	The spill went from appearance point into first concert partially filled storm basin. Then to second partially filled storm basin. The second basin has a outfall to a dry non-flowing wash bed.	20000	0	Spill ended up in a dry non-flowing wash bed, after being deluded through two partially filled storm basins.	18250	20000	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Unpaved Surface		Spill went from two nearby appearance points and joined together into and concrete lined storm catch basin. From this basin it went to a second storm catch basin. From the second basin it went to a storm outfall into a dry wash. The spill ended aprox 760' into the dry wash.   	Y	33.94015	-117.03258	33.94037	-117.03355	33.94072	-117.03528			11/10/2024 11:21	Spill volume estimations were made by finding that there was a 4hr and 15min gap between the last High High level alarm and the time city crew got the station running. Using the 4hr and 15min timeline multiplied by the spill rate of 150gpm(on-site visual comparison with manhole overflow simulation pictures) gives a spill of (255 x 150) 38,250gals.	Spill Start and end time estimations were made by finding that there was a 4hr and 15min gap between the last High High level alarm and the time city crew got the station running. 	Other (specify below); Pump Station Failure - Controls	This lift station is not maintained or operated by the City of Beaumont but by RSI Communities-California LLC (dba Taylor Morrison). In the opinion of Taylor Morrisons pump company the problem was that pump 3 had a fault that needed to be cleared and the low-level float may have been stuck making it so pumps 1 and 2 would not run.	Pump Station - Controls		Other (specify below)	Sewer lift station.	6	The impact of the spill was on a non-travel easement road to a concrete lined storm water basin then to a second storm water basin (both storm basin are in a locked and fenced off area and both storm basins had water in them before the spill.  Finally, the spill went through an outfall to a dry wash. The spill made it approximately 760� down the dry wash.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Please see attached spill report	Please see attached spill report	Other (specify below)	Please see attached spill report	Please see attached spill report	Please see attached spill report	11/13/2024 16:30	Please see attached spill report	Y	Looking into why the call out system was removed and following up on NOV sent to Taylor Morrison	12/06/2024 13:16	Noble Creek	Wash		None, dry wash	None, dry wash	Other (specify below)	None, locked and fenced off area.	None, no water body	0	N	N											Looking into why the call out system was removed and following up on NOV sent to Taylor Morrison	
2	2SSO10167	Active	Pleasanton City CS	Pleasanton City	897437	1.4	Certified	Ryan Smith	Assistant Director of Public Works - Utilities & Environmental Services	12-NOV-24	19-NOV-24	19-NOV-24	Category 1 Spill	3500 Bernal Ave/Tawny Dr	11/07/2024 07:57	11/07/2024 08:13	11/07/2024 07:15	11/07/2024 09:56	24-6279		Spill from pick hole and vent hole 	37.662876	-121.855538	Manhole			579	Spill reached SWDI and conveyed to outfall. Dirt dam built to contain flow into SWDI upon arrival. Spill was on driveway and gutter pan.	Y	18  Storm Drain Line, to 30 , to 54 , 66  storm lines	545	0	Spill reached  66  outfall of creek at single point. Photos attached	34	545	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		 Entered SWDI and traveled through conveyance pipe to outfall of Arroyo Del Valle. Outfall coordinates Lat 37.665759 Long 121.856092	Y	37.662876	-121.855538	37.665759	121.856092					11/07/2024 08:24	Used the Pick and Vent hole Calculation provided by DKF Solutions for total volume spilled. Recovered portion was calculated by the area/volume method.	Based on interview from reporting party, they did not see any spill at 0700 but did notice it 0715 when walking back through the area. RP then called upon arrival at home at 0756 Second interview performed with employee at Passion Pastry (in the same parking lot as spill) did not notice spill when arriving to work a little after 0700.	Fats, Oil and Grease (FOG)		Gravity Mainline		Polyvinyl Chloride (PVC); Vitrified Clay		45	Impact was to asphalt parking area, Street and gutter on Tawny Ave and storm conveyance system that leads to Arroyo Del Valle.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Upon arrival, immediately built dirt berm to stop any further spill from reaching SWDI. Relived blockage with Hydro Jetter and restored flow. Cleaned surface of parking lot and street. Flushed Storm conveyance system 3x spill volume and returned portion of spill to Sanitary 	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Post Spill CCTV	Planned addition of Smart Cover to upstream manhole.	Planned addition of Smart Cover to upstream manhole by 1/2025. Line segment will be added to Hotspot list and hydro jetted quarterly.	Hydro Jet 2/2025 Smart Cover 1/2025	11/07/2024 11:48	High concentration of FOG found. Will report to our Environmental Services Division for follow up and grease trap inspections.	N			Arroyp Del Valle	Stream/Creek		Seasonal stream with little to no flow at time of spill. Spill entered an area of little to no access and a part of the stream impacted had no flow.	No impacts observed.	Other (specify below)	No Public Access impact.	City of Pleasanton	0	N	N												
3	3SSO10222	Active	Atascadero Collection System	Atascadero City	897442	1.4	Certified	Timothy L. Cleaver	Operations Manager		14-NOV-24	14-NOV-24	Monthly Category 3 Spill	LS #5 Air relief blow off valve on Mercedes Ave.	11/11/2024 17:33	11/11/2024 17:50	11/11/2024 13:00				Air release valve malfunctioned causing vault to spill out of Vault off of Mecedes Ave.	35.49971	-120.66089	Force Main			75	Leak in vault of blow off valve.	N						70	Other (specify below)	Valve vault to unpaved surface.	Same coordinates as above.	Y	35.4997	-120.66089							11/11/2024 18:30	Reference sheet for estimating sewer spills from a metered test.	Reference sheet for estimating sewer spills from a metered test. 	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure		Air Relief Valve (ARV)/ Blow-Off Valve (BOV)		Cast Iron		25	Minimal	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Returned Portion of Spill to Sanitary Sewer System	Bypassed force main.	Bypassed force main and vacuumed up sewer. 	Repaired Facilities or Replaced Defect		Adjust maintenance schedule and replaced defected valve.		11/11/2024 18:30	Small leak in blow off valve.		NA	11/11/2024 18:30														NA	Inspection proto call and maintenance,	NA	NA	Replaced blow off valve.	Force main replacement. 	NA	NA	NA	
3	3SSO11408	Active	Hollister Municipal Sewer System CS	Hollister City	897444	1.3	Certified	William Via	Public Works Director		12-NOV-24	12-NOV-24	Monthly Category 3 Spill	Across from 1271 San Felipe Rd	11/05/2024 10:28	11/05/2024 10:34	11/05/2024 10:20				Spill located on side of road across from Wiebe Motel above the forced main Contractor damaged pipe when installing telephone pole anchor 	36.8751447	-121.4004697	Force Main			270	Spill directly above the forced main	N	There is no drainage nearby or at the location of the spill	0				270	Unpaved Surface		Spill located on side of road across from Wiebe Motel above the forced main Contractor damaged pipe when installing telephone pole anchor	Y	36.8751447	-121.4004697							11/05/2024 10:30	We measured surface area and depth giving us cubic feet x 7.48 gallons	Contractor caused the damage and was present at time of spill start and when the lift station was turned off the spill stopped	Damage by Others Not Related to Collection System Construction/Maintenance	Alvah Contracting working for PGE hit the forced main when installing an anchor for a power pole	Force Main		Polyvinyl Chloride (PVC)		45	We could not run our lift station until the repair was made and had to continuously pump out our wetwell with a Vactor Truck	N	Cleaned Up (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Turned off the lift station which stopped the spill immediately and cleaned with Vactor Truck	Other (specify below)	Caused by others unrelated 	Requested to our Engineering/Inspection department to verify contractors are following their permits by potholing for utilities before beginning work		11/05/2024 14:19	Alvah Contracting working for PGE hit the forced main when installing an anchor for a power pole		N/A	11/05/2024 14:20														N/A	N/A	N/A	N/A	Repair was made immediately after spill	N/A	N/A	N/A	N/A	
6B	6SSO11136	Active	City Of Lancaster CS	Lancaster City	897447	1.3	Certified	Benjamin Stewart	Public Works: Utility Services Supervisor		04-DEC-24	04-DEC-24	Monthly Category 3 Spill	832 W Ave H-7	11/09/2024 17:00	11/09/2024 18:32	11/09/2024 17:00				832 W Ave H-7 MH ID#1881-0117	34.7123531	118.1470803	Manhole			53	560' East of MH 1881-0117 2 w x 1/4  d, 524' West of MH 1881-0117 6 w x 1/4  d	N						53	Street/Curb and Gutter (2 3)		set sandbags @ 754 W. Ave H-7 (34.712310, -118.145254) and the intersection of Ave H-7 and the Frontage Road of 10th st west (34.712928, -118.148050).  	Y	34.71231	-118.145254	34.712928	-118.14805					11/09/2024 18:32	Spill measured by area calculation	All affected areas were measured for length, width, and depth, then calculated for volume.	Debris-Rags; Fats, Oil and Grease (FOG)		Manhole		Vitrified Clay		70	Sewage in the curb & gutter	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Spill was contained with sandbags. Then, combination trucks were used to clear the blockage by jetting with high pressure cleaning nozzles. Next the combination trucks were used to suck up sewage that was on the curb and gutter assisted with washing down with fresh water. Once all sewage and cleaning water were recovered the are was disinfected with Vanguard.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Post Spill CCTV	Public outreach	Sewer cleaning crew dispatched to clean affected lines and lines in surrounding neighborhood. CCTV crew dispatched to inspect affected sewer lines and connecting lines,		11/10/2024 02:00	See attached narrative		CCTV	11/14/2024 16:00														N/A	Increased cleaning and  inspection frequency	Increased frequency of inspection and cleaning with high pressure water jetting.	N/A	Assets inspected	N/A	See attachments	N/A	CCTV	
4	4SSO10401	Active	La Verne City CS	La Verne City	897452	1.1	Ready to Certify						Monthly Category 3 Spill	2550 Foothill Boulevard,La Verne Cal	11/08/2024 21:30	11/08/2024 21:45	11/08/2024 21:45				Customer notified of a possible overflow at 9:30pm. On call operator arrived on scene at 9:45pm. First appearance showed little seepage out of the hole used to hook up and open manhole.	34.11075	-117.75756	Gravity Mainline; Manhole		None	720	Flow was pooled by sand bags.	N		720				720	Paved Surface		Spill was contained with sand bags.	Y	34.11075	-117.75756							11/08/2024 23:00	Visual of spill was calculated at 5-8gpm for 90 minutes. Spill was seeping out of the hook hole used to remove manhole lid. All of the 720 gallons was recovered.	Operator documented time of arrival and time of flow coming out, then time of restored flow to system.	Debris-General		Gravity Mainline; Manhole		Vitrified Clay		10	Spill was contained with sandbags and vactored up. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow		Upon arrival, on call operator noticed a small wet spot around the hole used to hook up and open the manhole lid. Overflow was seeping around manhole. Operator deployed sand bags to pool any over flow. After flow was restored the small pool of overflow was vactored up and sanitized with chlorine.	Inspected Sewer Using CCTV to Determine Cause		CCTV line for any leftover debris.		11/08/2024 22:00	Line was CCTV for any debris left over. None detected.		N/A	11/11/2024 11:33														N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	
3	3SSO10340	Active	Gilroy CS	Gilroy City	897453	1.2	Ready to Certify						Monthly Category 3 Spill	480 W. 8th Street	11/13/2024 11:20	11/13/2024 11:29	11/13/2023 11:15				Spill originated from private manhole near sidewalk/ fence line of property 	37.00122	-121.57369	Lateral Clean Out (Private); Manhole	private manhole	lateral @ 7201 Dowdy St	265	photos submitted	Y	bubbler/ storm inlet	265				265	Drainage Conveyance System; Street/Curb and Gutter (2 3)		destinations of spill were 1) dirt area along fence line 2'w  73'  2) curb and gutter 2''w 217' 3) clean out @ 7201 Dowdy St 3'x3' 4) storm pipe  4'' 	Y	37.00144	-121.5736	37.00137	-121.57321					11/06/2024 11:20	method used to calculate spill was measured gallons 	information and statements by reporting party.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		68	impact was the temporary untreated wastewater on the public right away and RP being unable to use their system until service was restored	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		spill response consisted of blocking wastewater from running further down the curb by damming curbline.  Restoring flow by clearing blockage. cleaning remaining spill via wash down and vacuum method	Other (specify below)	continue to educate the public on the effects of FOG 	corrective action will be taken by monitoring monthly between cleaning intervals  		11/06/2024 13:00	Findings showed that FOG was the reason for blockage and a isolated incident 		N/A	11/06/2024 13:00														N/A	N/A  segment is currently on a preventative routine maintenance schedule of quarterly cleaning 	segment remains on preventative maintenance schedule and shall be monitored monthly between cleaning cycles	            none needed at this time	                   N/A	                      N/A	segment to remain on current quarterly cleaning schedule	Will continue to prioritize spill response time and training of new staff to better be prepared for any future spills 	N/A	
5S	5SSO10897	Active	Lathrop CS to Manteca WQCF CS	Lathrop City	897454	1.2	Certified	Michael King	Assistant City Manager		21-NOV-24	21-NOV-24	Monthly Category 3 Spill	662 O Street	11/11/2024 15:30	11/11/2024 15:30	11/11/2024 15:00				Spill originated from a single manhole on O Street. The manhole was located at the end of the gravity mainline for that portion of O Street. Photo of the origination location is shown in �Attachment 1 - Spill Origination Location�.	37.81584	-121.28524	Manhole			141	The spill extended approximately 25 feet west of the manhole, before flowing towards the gutter, approximately 16 feet south. The spill then travelled down the gutter pan another 20 feet before entering a storm drain catch basin. The catch basin flowed through piping northward approximately 25 feet and drained into a drop inlet where the spilled material was fully retained until cleanup. See Attachment 2 � Spill Extent and Boundaries.	Y	Entry location photo shown in Attachment 2 - Spill Extent and Boundaries. Spill travelled along a gutter pan and entered a storm drain catch basin approximately 40� from the appearance point. The drainage conveyance system on O Street ultimately flows into an infiltration basin that has no connection to surface waters (infiltration only). However, the spill did not travel from O Street and was fully retained in a drop inlet manhole immediately after entering the conveyance system. (See attachment 2)	141				141	Drainage Conveyance System		Spill ended in a storm drain manhole drop inlet which fully contained it. The drop inlet does not discharge until it reaches a certain elevation in the drop inlet. The volume that entered the drop inlet was not sufficient to flow out.	Y	37.81582	-121.28538							11/11/2024 17:30	The estimated spill volume was calculated by measuring the volume of material in the drop inlet prior to cleaning. All spilled material ended up in the drop inlet, with only a minimal amount being lost to evaporation. 	The spill start time was estimated to be approximately 30 minutes prior to discovery by staff due to the minimal amount of volume spilled. Spill end time was assumed to be the time when flow was restored through the mainline. 	Collection System Maintenance Failure (specify below); Debris-General; Debris-Rags; Fats, Oil and Grease (FOG)	Spill investigation identified that the likely cause of the spill was due to a blockage that formed downstream while performing routine sewer flushing activities. See answer #21 for additional information. 	Gravity Mainline		Vitrified Clay		45	Spill impact was minimal to none. The spill flowed almost immediately into a storm drainage conveyance system where it was contained and fully cleaned up. The spill remained completely on impervious surface.	N	Cleaned Up (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	The affected areas in the street, catch basin, and drop inlet were rinsed with clean water after spill was recovered. 	The storm pump station downstream was shut off as a containment method, this would prevent any spilled material from being pumped into the infiltration basin.	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below)	Providing Educational and Outreach material to residents and businesses.	Steps planned to reduce reoccurrence of spills will be to closely monitor the area and increase flushing activities if higher amounts of grease and solids are noted. This assessment will be done by end of next quarter (end of March 2025). E&O material will be provided to residents and businesses within the sewershed by May 2025.		11/12/2024 10:41	Spill investigation identified that the likely cause of the spill was due to a blockage that formed downstream while performing routine sewer flushing activities. The incoming flow from flushing activities hit the blockage and then backed up into a shorter mainline which then overflowed from the last manhole on that mainline. Smaller diameter pipe within the sewershed, multiple turns in the mainline, and higher amounts of solids and grease contributed to the blockage downstream. Once the mainline blockage was cleared, volume in the manhole receded and the spill ceased. 		None.	11/13/2024 08:00														None.	See specific answers below.	Sewer flushing will be continued at a minimum quarterly and will be increased if higher concentrations of grease and solids are observed.	Rehabilitation is not necessary at this time.	No defective assets identified at this time.	None planned at this time.	None available.	Review spill procedures with staff and discuss specific procedures to block and prevent flow into storm drain inlets when possible.  Reviewed spill response form and reportable answers with staff.	None.	
5S	5SSO11054	Active	South Placer Mud CS	South Placer MUD	897461	1.2	Certified	Eric Nielsen	Superintendent	13-NOV-24	22-NOV-24	22-NOV-24	Category 1 Spill	4940 Whitney Blvd Rocklin	11/09/2024 08:55	11/09/2024 09:31	11/07/2024 06:00				See attached spill summary.	38.79655	-121.25106	Lateral Clean Out (Public)			336	See attached spill summary.	Y	See attached spill summary.	0	0	See attached spill summary.	332	4	Drainage Conveyance System that discharges to surface water; Surface Water		The spill entered the drain inlet of a drainage conveyance system that discharges to Antelope Creek.  (See attached Spill Event Summary)	Y	38.797	-121.25							11/09/2024 09:35	See attached Spill Event Summary.	See attached Spill Event Summary.	Root Intrusion		Lower Lateral		Vitrified Clay	VCP lined with Cured-In-Place Pipe	61	See attached Spill Event Summary.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		See attached Spill Event Summary.	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV; Repaired Facilities or Replaced Defect		See attached Spill Event Summary.	Not applicable.	11/09/2024 13:01	See attached Spill Event Summary.	N			Antelope Creek	Stream/Creek		See attached Spill Event Summary.	None observed.	Other (specify below)	There was no public access impact.	N/A	0	N	N												
5S	5SSO11001	Active	Modesto CS	Modesto City	897471	1.2	Certified	Robert Englent	Wastewater Collection System Superintendent		19-DEC-24	19-DEC-24	Monthly Category 3 Spill	1421 Santa Paula Dr.	11/05/2024 16:51	11/05/2024 17:03	11/05/2024 07:00				The spill originated from TMHSS008247 in the middle of the street, in front of 1421 Santa Paula Dr. 	37.66504	-120.9591	Manhole			732	Sewer spilled from TMHSS008247 and traveled to the West and East sides of the street. Sewer on the West side gutter traveled 33 ft. and entered SDCB002071. Sewer on the East side gutter traveled 21 ft. and entered SDCB002072.	Y	Sewer entered two catch basins and entered the 12 inch storm line.	721				732	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		The sewer traveled south in the storm line for 529 ft.  The sewer did not make it to the downstream storm MHSD021359. The storm line entering MHSD021359 was dry. 	Y	37.66355	-120.95911							11/05/2024 19:12	The spill start time of 07:00 was used after speaking to the resident at 1421 Santa Paula Dr. The end time of 19:12 was determined using the time that the stoppage was cleared by the cleaning crew. The pick hole method was used to determine a spill rate of 1 GPM. The inlet was dry at storm MHSD021359, so the 721gallons of sewer that entered the storm system was recovered. The 11 gallons that was calculated to be on the street and gutter were also recovered for a total of 732 gallons. See Attachments	The spill start time of 07:00 was used after speaking to the resident at 1421 Santa Paula Dr. The end time of 19:12 was determined using the time that the stoppage was cleared by the cleaning crew. See Attachment	Fats, Oil and Grease (FOG)		Gravity Mainline		Cast Iron		46	Street, two catch basins, cross pipes and two storm line segments. See Attachment	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Contained spill with sandbags at the catch basins. Washed and vacuumed the street, gutter and catch basins. Cleaned and vacuumed the cross pipes and two storm lines.	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		The cleaning frequency has been increased from yearly to every 3 months. ECS will make contact with homeowners in the affected area and give them FOG literature. 		11/05/2024 20:46	The CCTV crew televised the line on 11-6-2024 and could not find any obvious defects. The stoppage occurred in the area of the pipe that was CAS. The increased roughness may have caused the grease to build up.		N/A	11/06/2024 13:57														N/A	Increase PM frequency.	Adjusted PM cleaning schedule from every 1 year to every 3 months.	N/A	N/A	N/A	Copy of PM frequency changes. See Attachment. 	N/A	N/A	
4	4SSO10388	Active	Glendale City CS	Glendale City	897474	1.2	Certified	Gary Harris	Wastewater Maintenance Superintendent	14-NOV-24	25-NOV-24	25-NOV-24	Category 1 Spill	1618 Ridgeway Drive 	11/09/2024 11:30	11/09/2024 11:45	11/09/2024 09:06	11/09/2024 13:53	24-36319		Manhole # 090232 / Located in front of 1618 Ridgeway Drive overflowed on the street.	34.17294	-118.26646	Manhole	N/A	N/A	2525	See pictures of overflowing Manhole # 090232 and street overflow.	Y	See picture of receiving catch basin on NE corner of Kenneth and Ridgway. 	100	2425	See pictures of SD conveyance flow path.	2425	100	Drainage Conveyance System; Street/Curb and Gutter (2 3)	N/A	Verdugo Wash	Y	34.26703	-118.40452							11/09/2024 12:28	Spill rate was based on pictures from SSCSC (Southern Section Collection Systems Committee) Manhole Overflow Guide.  An estimate was based between the 5 GPM and 25 GPM pictures.  A rate of 12.5 GPM was based on the crew 's observation of the spill based on the time of the spill event.	The start time of 9:06AM was based on the the practice of rolling back the earliest known start time of 9:26AM on 11/09 that was based on the resident of 1624 Ridgeway reporting the issue through the City's online reporting system.	Other (specify below)	Post CCTV inspection did not show any major defects that could have caused a stoppage.  Loose roots where discovered at the time of the stoppage that possibly caused the sanitary sewer overflow.	Gravity Mainline		Vitrified Clay		96	2425 gallons went in the catch basin at Kenneth Rd and Ridgeway Drive	N	Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified LA County Health Department / Ticket 4046979 CAL OES / Control # 24-36319	Contained SSO and broke the stoppage with the flusher.  Cleaned the street and gutter line and catch basin that was affected on Kenneth Rd and Ridgeway.  Performed Post CCTV inspection to evaluate the sewer main line.	Inspected Sewer Using CCTV to Determine Cause		Spill may have been caused by upstream cleaning activities earlier in the week.  These roots appear to have hung up on a protruding lateral but uncertain. Entering a work request to have the protruding lateral removed	Submit request to contractor November 19, 2024	11/12/2024 13:44	Post CCTV inspection was  completed on 11/12/24 and no major defects were found that would cause a blockage in the sewer system.  A protruding lateral was the only defect identified. At the time of the stoppage a root ball was found when the stoppage was relieved.  A root ball possibly came loose from upstream and got stuck near the manhole or protruding lateral.	Y	Possible increased frequency of preventive maintenance based on circumstances-pending review.	11/22/2024 04:37	Verdugo Wash	Wash	N/A	Verdugo Wash is a tributary to the Los Angeles River in Glendale area of Los Angeles County.	No observations was made.	Other (specify below); Restricted Public Access	Public access to Verdugo Wash is permanently restricted.  Area is located behind locked gates and fences	Los Angeles County, Flood Control	0	N	N	N/A	N/A									Possible increased frequency of preventive maintenance based on circumstances-pending review.	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	897475	1.4	Certified	John J. Hough	San Dist. Superintendent	14-NOV-24	22-NOV-24	22-NOV-24	Category 1 Spill	351537	11/08/2024 08:45	11/08/2024 09:30	11/07/2024 16:58	11/08/2024 14:15	24-6305		See Attached Spill map with Photos.	38.3112	-121.4201	Other (specify below)	CARV vault		3925	See Attached Spill map with Photos.	Y	See Attached Spill map with Photos.	3000	0	See Attached Spill map with Photos.	667	3915	Other (specify below); Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface	Roadside ditch - Drainage conveyance system	See attached Spill Map with Photos.	Y	38.3112	-121.4201	38.3125	-121.42	38.313	-121.42			11/08/2024 09:30	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure		Air Relief Valve (ARV)/ Blow-Off Valve (BOV)		Other (specify below)	CARV failure	17	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified Sacramento County Department of Water Resources Drainage O&M.	See Attached Description of Spill Event	Repaired Facilities or Replaced Defect		SacSewer replaced the CARV on November 8, 2024.	SacSewer replaced the CARV on November 8, 2024.	11/08/2024 20:00	See Attached Description of Spill Event	N			Unnamed Irrigation Ditch	Other (specify below)	Irrigation ditch tributary to Cosumnes River	Earth-lined ditch with pools of stagnant water.	No observed impacts to aquatic life	Other (specify below)	No public access impacts.	N/A	0	N	N	N/A	N/A										
2	2SSO10179	Active	San Jose City CS	San Jose City	897478	1.3	Certified	Ben Nguyen	Senior Engineer	14-NOV-24	25-NOV-24	25-NOV-24	Category 1 Spill	3282 Farthing Wy San Jose CA 95132	11/12/2024 08:12	11/12/2024 08:42	11/12/2024 07:00	11/12/2024 10:10	24-6365		The location of the spill appearance point was a manhole in front of a residential address 3282 Farthing Way, San Jose, CA 95132.  	37.41068	-121.85614	Manhole			4350	The spill discharged from a manhole and traveled along the street curb/gutter. From the curb gutter, the sewage reached  a nearby storm inlet which is part of the City's storm drain system.  The spill reached an outfall (#565) discharging to the Crosley creek which joins Berryessa Creek	Y	The spill reached nearby storm drain inlet along 3282 Farthing wy. This storm drain inlet (#21048 on CJS' GIS) is connected to the City of San Jose's storm sewer system. The sewage traveled within within the storm system and reach an outfall at the Crosley Creek which as a tributary of the Berryessa Creek.	500	3232	The sewage reached the Crosley Creek, a tributary of the Berryessa Creek, while discharging from storm outfall. The location of the storm outfall along the Berryessa Creek is approximately at location 37.408886, -121.862993.  	3232	1118	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water		The spill entered storm drain inlet #21048 on Farthing Way and traveled to a outfall via City's storm drain system and eventually discharged into the Berryessa Creek at 37.408949, -121.86418.  	Y	37.41068	-121.85614	37.4089493	-121.8641861					11/12/2024 09:25	Spill volume was estimated by flow-duration method, based on flow rate that was captured by the first responder.  Start time was assumed to be one hour prior to the reporting party's (RP) notice of the spill. Duration was estimated at 145 minutes.  Flow rate was estimated as 30 gpm per video clip taken by the first responder. Spill recovered was calculated using measurements taken by crew during spill event.	Spill start time was estimated based on responding party observation and spill end time was when crew cleared the plug in the mainline. 	Fats, Oil and Grease (FOG)	A minor offset was also found during the review of the CCTV result. 	Gravity Mainline		Vitrified Clay		54	Water reached the street, and curb and gutter; and the spill was cleaned up.  Water reached a storm inlet and traveled in the City's storm drainage system to an outfall at Berryessa Creek. Volume was partially recovered. There is no directed impact to the general public as the spill were cleaned up. Ammonia Test at outfall discharge point resulted in positive reading.  Raw sewage warning signs were posted 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	The cleanup was performed using two-trucks combo method.  	Upon arrived at the scene, the crew placed containment mat and sandbags at the storm inlet. Crew identified the plugged segment and proceeded with clearing the plug.  Grease was observed while the crew was clearing the plug.  After the crew clear the plug, crew restored the flow, tracked down the water in the storm system to the outfall, performed ammonia test in SD MH, and identified outfall.  Crew performed ammonia test and the result was positive.   Crew cleaned up street with two-trucks method, notified appropriate agencies, and document the event.	Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Post Spill CCTV	Grease flyers will be distributed in the surrounding area of 3282 Farthing Wy San Jose CA 	CCTV inspection was performed immediately after the spill.  Staff planned to repair the downstream segment since an offset was found.  Segment will be inspected with CCTV in 3 months to assess the condition.  Grease flyers will be distributed near the affected area.   Staff plan to adjust cleaning cycle based on the video result. 	Planned repair for the downstream segment. Segment will be inspected with CCTV in 3 months to assess the condition.   Planning to adjust cleaning cycle based on the video	11/12/2024 12:50	Staff reviewed the pic/video, notes, and information from the first responder.   Staff compared the rate of flow between the spill event and controlled flow video.   Staff conducted a site visit to the outfall. The CCTV inspection was reviewed and evaluated.  	N			Berryyessa Creek	Stream/Creek		The Crosley creek is a minor tributary that feeds into the Berryessa Creek. The Berryessa eventually feeds into the Lower Penitencia Creek before finally reaching Coyote Creek. The water will then keep traveling before finally reaching the San Francisco Bay.	No impact to aquatic life. 	Other (specify below)	Location of outfall is not accessible by the general public. 	Valley Water	0	N	N												
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	897485	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	14-NOV-24	26-NOV-24	26-NOV-24	Category 1 Spill	755 Apple Street, Oakland Ca	11/12/2024 09:42	11/12/2024 12:05	11/11/2024 17:00	11/12/2024 13:02	24-6372		Main line clean-out was overflowing in the street, the sewage was flowing to 2 storm inlets in opposite sides of the street.	37.73518	-122.17788	Manhole	Main line clean-out.		9346	Main line clean-out was overflowing in the street, the sewage was flowing to 2 storm inlets in opposite sides of the street.	Y	Storm inlets located at Apple Street and Gravenstein Street; the storm system has 1' diameter storm line that flows to a 36  diameter storm line, and eventually it will flow into San Leandro creek.	0	9346	Storm inlets located at Apple Street and Gravenstein Street; the storm system has 1' diameter storm line that flows to a 36  diameter storm line, and eventually it will flow into San Leandro creek.	9346	0	Drainage Conveyance System		Main line clean-out was overflowing in the street, the sewage was flowing to 2 storm inlets in opposite sides of the street.	Y	37.73518	-122.17788							11/12/2024 15:00	Vent-hole diameter: 1  diameter x 1  height = 1.77 GPM 4 vent-holes: 1.77 GPM x 4 = 7.08 GPM 22 hrs. spill x 60 minutes = 1320 minutes spill 1320 minutes x 7.08 gallons total spill.	The start time was based on eyewitness account. The end time was based on responding sewer crew restoring the flow in the mainline.	Damage by Others Not Related to Collection System Construction/Maintenance	Street was recently paved, and the responding sewer staff found asphalt to have been the potential cause of the overflow.	Manhole	Street was recently paved, and the responding sewer staff found asphalt to have been the potential cause of the overflow.	Vitrified Clay		30	Main line clean-out was overflowing in the street, the sewage was flowing to 2 storm inlets in opposite sides of the street.	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow	Sewer staff restored the flow, washed and cleaned up the affected area of the spill on the street and in the storm inlet.	Sewer staff restored the flow, washed and cleaned up the affected area of the spill on the street and in the storm inlet.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Mainline has been added to 6-month hydro high frequency maintenance program.	Mainline has been added to 6-month hydro high frequency maintenance program, W. O. # 1574450	11/19/2024 09:30	Street was recently paved, and the responding sewer staff found asphalt to have been the potential cause of the overflow. CCTV confirmed the assumption that asphalt and grease deposition (FOG) had been the potential cause of the overflow.	N			San Leandro creek	Stream/Creek		Stream of water that flows to the bay.	None observed.	Other (specify below)	None	N/A	0	Y	N												
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	897488	1.3	Certified	Ameal McLaurin	Sewer Supervisor 2	14-NOV-24	26-NOV-24	26-NOV-24	Category 1 Spill	Mountain Blvd. & Moraga Avenue, Oakland Ca	11/13/2024 13:12	11/13/2024 13:30	11/13/2024 13:00	11/14/2024 08:34	24-6405		Manhole overflowing in the street and the sewage was flowing on the curb and gutter to the nearest storm drain.	37.82526	-122.20977	Manhole			2880	Manhole overflowing in the street and the sewage was flowing on the curb and gutter to the nearest storm drain.	Y	1' diameter storm line that flows to a 30  diameter storm line, and eventually to Sausal creek.	0	2880	1' diameter storm line that flows to a 30  diameter storm line, and eventually to Sausal creek.	2880	0	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Manhole overflowing in the street and the sewage was flowing on the curb and gutter to the nearest storm drain.	Y	37.82526	-122.20977							11/13/2024 14:30	Vent holes 1  Diameter x 1  Height = 3.54 GPM 9 Vent holes x 3.54 GPM = 32 GPM 90 Minutes x 32 GPM = 2,880 Gallons	Start time was based on eyewitness account. End time was based on responding crew clearing the blockage.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		30	Manhole overflowing in the street and the sewage was flowing on the curb and gutter to the nearest storm drain.	N	Cleaned Up (specify below); Restored Flow	Staff washed and cleaned affected areas on the street curb and gutter.	Staff washed and cleaned affected areas on the street curb and gutter.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Sewer main was added the three-month hydro Maintenace program. W.O. #1545773.	Sewer main was added the three-month hydro Maintenace program. W.O. #1545773.	11/16/2024 17:13	CCTV found grease deposits (FOG) to have been the cause of the overflow.	N			Sausal Creek	Stream/Creek		Stream Creek	None.	Other (specify below)	None.	N/A	0	Y	N												
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	897489	1.2	Certified	Kent Vian	Asst. Deputy Director		11-DEC-24	11-DEC-24	Monthly Category 3 Spill	NOT# 40201174204 4216 MANZANITA DR.	11/13/2024 09:25	11/13/2024 09:55	11/13/2024 12:14				THE SPILL ORIGINATED FROM THE CRAWL SPACE UNDER THE HOUSE OF 4216 MANZANITA DR. 	32.737	-117.10452	Upper Lateral (Private)	NA	N/A	850	THE SPILL EXITED THE CRAWL SPACE AND THEN TRAVELED NORTH INTO LEXINGTON CANYON OPEN SPACE AND SETTLED INTO THE DIRT.	N	NA	0				400	Building or Structure; Unpaved Surface	NA	THE SPILL SETTLED INTO LEXINGTON CANYON.	Y	32.73737	-117.10471							11/13/2024 12:04	THE SPILL VOLUME WAS CALCULATED USING THE VISUAL CALCULATED METHOD.	THE SPILL START TIME WAS DETERMINED WHEN THE CONSUMER CALLED IN TO REPORT THE SPILL, AND THE SPILL END TIME WAS WHEN CREWS VISUALLY CONFIRMED THE SPILL HAD STOPPED.	Pipe Structural Problem/Failure - Controls	NA	Gravity Mainline	NA	Concrete	NA	72	THE SPILL IMPACTS WERE TO THE CRAWL SPACE UNDERNEATH THE HOUSE, TO THE BACKYARD AND LEXINGTON CANYON OPEN SPACE.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	THE RESTORATION COMPANY USED A PUMPER TRUCK TO PUMP THE SEWER FROM UNDERNEATH THE HOME AND RETURNED THE SEWER TO THE COLLECTION SYSTEM.	THE SPILL RESPONSE ACTIVITIES WERE TO RELIEVE THE BLOCKAGE BY BACK FLUSHING, UTILIZING A COMBO TRUCK DUE TO NO ACCESS (EASEMENT MAIN). CREW WERE UNABLE TO CLEAR THE BLOCKAGE AND STARTED TO VACTOR THE MANHOLES IN THE AREA TO CONTROL THE FLOW. CREWS THEN SET UP TEMPORARY BYPASS PUMP TO CONTROL THE FLOW.	Inspected Sewer Using CCTV to Determine Cause	NA	Asset is under contractor repair CIP# B-13232 		11/13/2024 15:00	IT APPEARS THAT THE CONCRETE MAIN COLLAPSED, CAUSING THE SPILL.		NO	11/13/2024 17:00														UNK	Asset will be replaced under Sewer Group Job 836 CIP# B-13232	None at this time asset will be repaired. 	Yes, currently under construction. Sewer Goup Job 839 CIP# B-13232	Yes, repairs on going expected completion date 1/30/2025	Yes Cip B-13232	Please see attached 	Set bypass pumping assisted contractor until repairs are completed.   	NO	
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	897491	1.3	Certified	Daniel Whitlock	Manager	15-NOV-24	03-JAN-25	03-JAN-25	Category 2 Spill	Greenwich Steps	11/14/2024 14:17	11/14/2024 15:25	11/14/2024 10:30				Spill originated by the Greenwich steps from manhole N-16485 and flowed down the stairs into catch basin on Sansome street.	37.80294	-122.40421	Gravity Mainline; Manhole			56000	Spill flowed down Greenwich steps during rain event. Some spill went into catch basin at bottom of the stairs. about 20% got into the soil which was not recovered.	N						44800	Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		Spill originated from manhole N-16485 and travelled down the steps towards Sansome St.	Y	37.80302	-122.40366							11/14/2024 12:30	H&H hydraulics 	H&H hydraulics used asset N-16485 to run model.	Root Intrusion	Root intrusion in the manhole.	Gravity Mainline; Manhole		Vitrified Clay		124	No roads were closed. Stairs were contaminated but were disinfected during clean up.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		The spill stopped on its own once rain subsided. Disinfected and hosed down the area. Roots were pulled out of the manhole and first 5 feet of the pipe.	Post Spill CCTV; Repaired Facilities or Replaced Defect		CCTV on 11/18/2024 revealed many roots in manhole and a little bit into pipe. Repair of Asset N-16485 completed 11/21/2024	11/14/2024 Spill starts and stops 11/18/2024 CCTV completed 11/21/2024 Repair of asset N-16485 completed	01/02/2025 08:32	Root intrusion in Manhole N-16485 and 5 feet into pipe P-118750 caused the spill.	N												N													
4	4SSO10388	Active	Glendale City CS	Glendale City	897493	1.3	Certified	Gary Harris	Wastewater Maintenance Superintendent	15-NOV-24	26-NOV-24	26-NOV-24	Category 1 Spill	1244 & 1246 Linden Ave.	11/12/2024 20:00	11/12/2024 21:06	11/12/2024 18:50	11/13/2024 00:08	24-6383	15-NOV-24	Multiple spill appearance points. #1) 1246 Linden Ave. two flooded back units (ADU) and one (1) overflowing cleanout to gutter on Linden Ave. #2) 1244 Linden Ave. one (1) overflowing cleanout through back yard and into alley behind property.	34.17812	-118.29049	Inside Building or Structure; Lateral Clean Out (Private)			2340	Both, the spill in the gutter of Linden Ave. and alley flowed to a catch basin located at the corner of W. Glenoaks Blvd. & Allen Ave.	Y	Spill entered a catch basin with grates leading to a 36  reinforced concrete pipe (RCP) maintained by LACFCD.	0	1902	All of City of Glendale's watershed discharges to the LA River. 	1902	439	Building or Structure; Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		Both, the spill in the gutter of 1200 block of Linden Ave. and alley behind Linden Ave. flowed to a catch basin located at the corner of W. Glenoaks Blvd. & Allen Ave.	Y	34.17413	-118.29347							11/12/2024 21:26	Engineering staff calculated flow rate using a software model which indicated the average daily flow (ADF) for this segment is 0.0876 mgd which is equivalent to 60 gpm. Visual calculation of 25% (15 gpm) used for discharge (spill) rate, this was based on observed underflow at downstream manhole during stoppage and observed flow after stoppage was relieved.  156 minutes X 15 gpm = 2,340 gallons (estimated total spill volume exiting the system). Spill volume recovered: Combination Vactor unit vacuum recovered 300 gallons during event (20 mins. X  15 gpm = 300 gallons)  Spill volume captured: Two flooded units totaled 620 square feet at about 1/8  or 0.01' depth for an estimated 46 gallons. Two tree planters behind 1244 Linden Ave. totaled 24 square feet at about 1/2  or 0.5' depth for an estimated 90 gallons. Total spill volume recovered and captured, 436 gallons. Total spill vol. 2,340 gal. - spill vol. recovered 436 gal. = 1,904 estimated vol. of spill that reached drainage channel.	Resident at 1246 Linden Ave. observed toilet overflowing at 18:50 (start time). Crew relieved stoppage at 21:26 (end time). 156 minutes of discharge from multiple spill appearance points.	Root Intrusion		Gravity Mainline		Vitrified Clay		27	Two flooded accessory dwelling units (ADUs) in the back of 1246 Linden Ave.  One private clean out discharged into the gutter line of Linden Ave. a second discharged through the backyard of 1244 Linden Ave. and out the back to an alley. All of spill flowed to Allen Ave. and down to a catch basin located at Glenoaks Blvd. The spill flowed an approximate 2,016 feet of gutter line and 593 feet through an alleyway.  An estimated 1,904 gallons entered a catch basin, and were not recovered from the storm drain conveyance system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Reporting resident at 1246 Linden Ave. captured spill overflowing into two ADUs using absorbent pads (46 gallons). A Vactor combination unit vacuum recovered 15 minutes during event (300 gallons). Crew relieved stoppage and restored flow. Gutter line, Alley and back yard (concrete areas) of 1244 Linden Ave. were sanitized using bleach and water. All wash down water was contained.	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below); Post Spill CCTV	Treat with Chemical Root Control (CRC).	Will adjust scheduled frequency of cleaning from 18 months to (TBD) and will treat with Chemical Root Control (CRC).	Frequency adjustment to be implemented within 90 days. CRC treatment no later than spring.	11/13/2024 00:55	Post spill CCTV found several points with root intrusion and verified actual footage of cause of stoppage reported by Crew that restored flow. Current cleaning frequency is set at 18 months, will meet with leadership team and adjust. Will add this segment to our upcoming CRC treatment scheduled for December or April.	N			L.A. River	River		All of Glendale's watershed leads to the Los Angeles River which drains nearly 51 miles to San Pedro Bay located in Long Beach CA.	None.	Other (specify below)	None reported.	City of Long Beach Health Department	0	N	N												
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	897511	1.1	Certified	David Leamer	Assistant Superintendent		20-NOV-24	20-NOV-24	Monthly Category 3 Spill	350060	10/08/2024 11:07	10/08/2024 11:55	10/08/2024 11:00				See Attached Spill map with Photos.	38.61221	-121.28739	Lateral Clean Out (Private); Lateral Clean Out (Public); Manhole		1 MH 2 District CO 1 Private CO	227	See Attached Spill Map with Photos	Y	See Attached Spill map with Photos.	205				222	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		See attached Spill Map with Photos.	Y	38.61268	-121.28717	38.61261	-121.287	38.61244	-121.28538			10/08/2024 11:55	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Root Intrusion		Gravity Mainline		Vitrified Clay		65	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Upon arrival, starting MH seeping spill to street and gutter to DI. 2 District CO spill in box, walk gutter to DI. Tracked down Dry MH  137403. Tracked down SDMH with a dry inlet in the intersection of Benita Dr and Segovia Way. SacSewer to Hydro, MLF and clean SDMH, SD laterals and SD Mainlines.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		SacSewer inspected mainline with CCTV on 10/8/24. Based on findings, SacSewer increased preventative cleaning frequency to 24 months from 48 months.		10/08/2024 15:40	Upon arrival, starting MH seeping spill to street and gutter to DI. 2 District CO spill in box, walk gutter to DI. Tracked down Dry MH  137403. Tracked down SDMH with a dry inlet in the intersection of Benita Dr and Segovia Way. SacSewer to Hydro, MLF and clean SDMH, SD laterals and SD Mainlines.		None	10/08/2024 15:40														N/A	SacSewer increased preventive cleaning frequency from 48 months to 24 months.	SacSewer increased preventive cleaning frequency from 48 months to 24 months.	N/A	SacSewer inspected mainline with CCTV on 10/8/24.	N/A	SacSewer increased preventive maintenance frequency on 10/28/24.	N/A	None	
2	2SSO10162	Active	Novato And Ignacio CS	Novato Sanitary District	897522	1.1	Certified	Jeff Andress	Collection Systems Superintendent		31-DEC-24	31-DEC-24	Monthly Category 3 Spill	826 Hayden Ave, Novato	11/16/2024 11:46	11/16/2024 12:15	11/16/2024 04:15				photographs have been attached. 	38.10347	-122.56764	Manhole			159	Discharge out of Manhole G16085 and ran down hill 24 feet and stopped at retain wall	N						10	Unpaved Surface		24 feet downstream of manhole at retain wall		38.10346	-122.56757							11/16/2024 12:34	After speaking with the homeowner, he did not see the SSO the night before, but noticed it that morning. He wasn't sure what time it started. We calculated 3 houses upstream with a daily usage of 160 gallons per day. assuming not much usage in middle of the night. We assumed 8 hours of spill. 8/24=1/3 of 160= approximately 53 gallons per house for a total of 159 gallons, so 159/8=19.8 gallons per hour, 19.8/60=.33 gallons a minute. durring cleanup, 5 gallons of debris were cleaned up, and 5 gallons of standing water for a total of 10 gallons recovered. 	After speaking with the homeowner, he did not see the SSO the night before, but noticed it that morning. He wasn't sure what time it started. We calculated 3 houses upstream with a daily usage of 160 gallons per day. assuming not much usage in middle of the night. We assumed 8 hours of spill. 8/24=1/3 of 160= approximately 53 gallons per house for a total of 159 gallons	Root Intrusion		Gravity Mainline		Concrete		45	soaked into the soil of a 24;x3' area, some debris on the surface that was removed during the cleanup efforts. 	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		cleaned up all debris visible on the surface and all standing water using hand tools as this location was in a backyard along an easement. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		adjustment of the cleaning schedule		11/16/2024 13:05	Followed up with a full CCTV inspection of the line segment with the blockage. found one root intrustion just downstream of the manhole. the rest of the pipeline looked good. 		none	11/18/2024 08:57														NA	NA	yes	No	inspected pipeline with CCTV	NA	NA	none	none	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	897528	1.1	Certified	David Leamer	Assistant Superintendent		20-NOV-24	20-NOV-24	Monthly Category 3 Spill	350793	10/24/2024 08:36	10/24/2024 09:11	10/24/2024 08:00				See Attached Spill map with Photos.	38.62234	-121.31047	Lateral Clean Out (Private)			790	See Attached Spill Map with Photos	Y	See Attached Spill Map with Photos	710				778	Building or Structure; Drainage Conveyance System; Paved Surface; Unpaved Surface		See attached Spill Map with Photos.	Y	38.62242	-121.31037	38.62247	-121.31054	38.62265	-121.31116			10/24/2024 10:00	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Root Intrusion		Gravity Mainline		Vitrified Clay		58	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Roots in the Mainline 348-197-2006 (Asset 53648) caused the private cleanout at 6657 Stanley Ave to spill. The spill from the private cleanout travelled onto landscape area and grass, into french drains, and then into a seasonal waterway in the backyard. The spill travelled along the seasonal waterway through backyards and contained in a small pond at 6627 Stanley Ave.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		SacSewer inspected mainline with CCTV on 10/25/24. Based on findings, SacSewer increased preventative cleaning frequency to 12 months from 18 months.		10/25/2024 09:20	Roots in the Mainline 348-197-2006 (Asset 53648) caused the private cleanout at 6657 Stanley Ave to spill. The spill from the private cleanout travelled onto landscape area and grass, into french drains, and then into a seasonal waterway in the backyard. The spill travelled along the seasonal waterway through backyards and contained in a small pond at 6627 Stanley Ave. SacSewer used SPLM to clean up the landscape and backyard areas that came in contact with the sewage. SacSewer crews introduced dechlorinated water from a fire hydrant into a drainage culvert at 6644 Stanley Ave to rinse the seasonal waterway. The water contained in the pond was pumped out using portable pumps and recovered back into sewer system.		None	10/25/2024 09:20														N/A	SacSewer increased preventive cleaning frequency from 18 months to 12 months.	SacSewer increased preventive cleaning frequency from 18 months to 12 months.	N/A	SacSewer inspected mainline with CCTV on 10/25/24.	N/A	SacSewer increased preventive maintenance frequency on 10/28/24.	N/A	None	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	897531	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	19-NOV-24	26-NOV-24	26-NOV-24	Category 1 Spill	6516 Moraga Avenue, Oakland Ca	11/16/2024 12:54	11/16/2024 14:00	11/16/2024 12:30	11/16/2024 13:51	24-6442		Manhole and lateral clean out (private) at public sidewalk were overflowing, the sewage was flowing down to the street curb and gutter and getting into the nearest storm inlet.	37.82615	-122.21019	Lateral Clean Out (Private); Manhole			477	Manhole and lateral clean out (private) at public sidewalk were overflowing, the sewage was flowing down to the street curb and gutter and getting into the nearest storm inlet.	Y	12  storm pipe that flows to 30 diameter storm line and eventually flows to Sausal creek.	0	466	Stream of water called Sausal creek.	466	11	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Manhole and lateral clean out (private) at public sidewalk were overflowing, the sewage was flowing down to the street curb and gutter and getting into the nearest storm inlet.	Y	37.82615	-122.21019							11/16/2024 14:15	Pick holes diameter x 1  height = 1.77 GPM 2 Pick holes = 3.54 GPM 105 minutes x 3.54 GPM = 372 Gallons Lateral cleanup private : 1 GPM x 105 minutes = 105 gallons Total spill: 372 + 105 = 477 gallons Recovered from curb and gutter: 6' L x 1.5' W x .17' D x 7.48 = 11 gallons. Total Spill unrecoverable: 477 gallons - 11 = 466 lost.	Start time was based on eyewitness account. End time was based on responding sewer staff restoring the flow in the mainline.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		30	Manhole and lateral clean out (private) at public sidewalk were overflowing, the sewage was flowing down to the street curb and gutter and getting into the nearest storm inlet.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Staff washed down affected areas in the street curb and gutter. Staff recovered 11 gallons from the street curb and gutter area.	Staff washed down affected areas in the street curb and gutter. Staff recovered 11 gallons from the street curb and gutter area.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause	Sewer main was added to 3-month hydro high frequency maintenance program.	Sewer main was added to 3-month hydro high frequency maintenance program.	Sewer main was added to 3-month hydro high frequency maintenance program. W.O. # 1545773.	11/16/2024 16:53	CCTV inspection found (FOG) to have been the cause of the overflow.	N			Sausal Creek	Stream/Creek		Stream/Creek Sausal Creek	None.	Other (specify below)	None.	N/A	0	Y	N												
5S	5SSO11433	Active	City of Stockton MUD CS	Stockton City MUD	897532	1.1	Certified	Dagmara Saini	Program Manager III		30-DEC-24	30-DEC-24	Monthly Category 3 Spill	2123 FONTANA AV	11/03/2024 16:23	11/03/2024 16:30	11/03/2024 16:00				See Photos with descriptions in the attachments tab. 	37.9615	-121.33704	Manhole			263	See Photos with descriptions in the attachments tab. 	N						263	Street/Curb and Gutter (2 3)		2123 FONTANA AV- spill came from sanitary manhole in front of property and was contained mostly in the gutter area and drive way area of the apartment complex. 										11/03/2024 18:00	We used a spill volume calculator based on the measurements of the spill captured in the curb and gutter. 	We used a spill volume calculator based on the measurements of the spill captured in the curb and gutter. And any areas impacted by the spill. The spill start and end time are based on the time the spill was reported and the time we were able to stop the spill.  The reporting phone call was anonymous and there were no other witnesses.    	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		75	NONE	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Cleared the Main Line to minimize the impacted area of the spill. Used Hydro truck to clean and vacuum the impacted area of the spill.	Inspected Sewer Using CCTV to Determine Cause		CCTV the Sanitary Lateral and implement any repairs or adjustments to a PM (if applicable) that are needed.		11/03/2024 20:00	Due to other utilities in the area where the spill occurred at this time repairs is not feasible at this point. We came to the conclusion of increasing the frequency of the PM in the area.   		CCTV the main line and implement any repairs or adjustments to a PM (if applicable) that are needed.	12/02/2024 14:27														NONE	Currently this segment is on a yearly PM. And it will be modified to a bi-yearly PM to prevent a repeat of the spill.	Currently this segment is on a yearly PM. And it will be modified to a bi-yearly PM to prevent a repeat of the spill.	NONE	NONE	NONE	We came to the conclusion of increasing the frequency of the PM in the area.   	CCTV the main line and implement any repairs or adjustments to a PM (if applicable) that are needed.	CCTV the main line and implement any repairs or adjustments to a PM (if applicable) that are needed.	
5S	5SSO10868	Active	Arnold CS	Calaveras Cnty Water District	897541	1.1	Certified	Damon Wyckoff	Director Of Operations		19-NOV-24	19-NOV-24	Monthly Category 3 Spill	Lift Station 2	11/19/2024 12:10	11/19/2024 12:20	11/19/2024 12:00				Lift Station 2 has a standby generator that operates automatically on a load, every Tuesday. Today, the Automatic Transfer Switch hung up and the Autodialer UPS also failed to callout on high-level. The Collections Crew Team lead was able to stop the spill with help from the electrical lead. Electricians arrived onsite at approx. 1pm to correct both issues.	38.237502	-120.366652	Pump Station	N/A	None	900	When Lift Station 2 fails the Septic Tank Effluent flows out of a manhole (241) near the lift station. The effluent pools on ground near the lift station.  Collections crew team members rake the duff and pine needles off the ground and disinfect the soil surface.	N	Did not reach drainage conveyance system.	0				0	Unpaved Surface	N/A	The Arnold Collections System's Lift Station #2 has a standby generator that operates every Tuesday under a load. The Automatic Transfer Switch got hung up in the transfer between PG&E Power and generator power. The UPS that powers the Autodialer during events like this also failed. A community member noticed the spill (which was comprised of effluent as the manhole lid was able to hold solids and paper-products back), and called the office. CCWD Collections Staff and Electricians Responded immediately	Y	38.237502	-120.366652							11/19/2024 12:45	Eyewitness visual estimation of 20 gpm for the spill duration of 45 minutes. 	Staff understanding of the holding capacity of the wetwell, coupled with when the call was received, and the eyewitness estimation of flow.	Pump Station Failure - Controls; Pump Station Failure - Mechanical; Pump Station Failure - Power		Pump Station - Controls; Pump Station - Mechanical; Pump Station - Power		Ductile Iron		40	The 900 gallons of effluent percolated into the dry ground right next to the lift station.	N	Cleaned Up (specify below); Other Enforcement Agency Notified		Staff onsite cordoned of the area and raked duff and pine needles up and disposed of them at the Arnold WWTP. also disinfected the exposed soil at the site of the percolation.	Repaired Facilities or Replaced Defect		Working to understand why the automatic transfer switch and UPS failed.		11/19/2024 13:46	Lift Station 2 has a standby generator that operates automatically on a load, every Tuesday. Today, the Automatic Transfer Switch hung up and the Autodialer UPS also failed to callout on high-level. The Collections Crew Team lead was able to stop the spill with help from the electrical lead. Electricians arrived onsite at approx. 1pm to correct both issues.		Continuing to work to understand the electrical issues at the site.	11/20/2024 13:50														N/A	None	N/A	Yes. Lift Station 2 Replacement is on our 10 year CIP.	Yes	Planned	N/A.	None.	Continuing to work to understand the electrical issues at the site.	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	897545	1.2	Certified	David Leamer	Assistant Superintendent		20-NOV-24	20-NOV-24	Monthly Category 3 Spill	351037	10/29/2024 12:20	10/29/2024 12:20	10/29/2024 11:34				See Attached Spill map with Photos.	38.41086	-121.41746	Other Sewer System Structure	SacSewer CARV		240	See Attached Spill Map with Photos	Y	See Attached Spill map with Photos.	187				225	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		See attached Spill Map with Photos.	Y	38.41121	-121.41737	38.41033	-121.41751	38.40909	-121.42255			10/29/2024 12:46	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure		Air Relief Valve (ARV)/ Blow-Off Valve (BOV)		Acrylonitr. Butadiene Styrene (ABS)		8	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		See Attached Description of Spill Event	Repaired Facilities or Replaced Defect		SacSewer replaced damaged ARV on 10/31/24		10/30/2024 16:40	The 2-inch line connecting the 12-inch FM (FM-100 from S153) and the CARV013 MH (behind the sidewalk) broke just outside the MH. There was no spill inside the CARV MH. The S153 FM-100 force main discharges into a vault, 750 feet south of the intersection of Bruceville Road and Laguna Blvd. The spill discharged onto grass (between the sidewalk and MH), onto the sidewalk, and onto the curb and gutter flowing both north and south directions. The spill entered the drainage conveyance system. SacSewer crews used a hydro-vacuum truck to rinse and clean the affected above-ground surfaces and storm drain laterals.		None	10/30/2024 16:40														N/A	SacSewer replaced damaged ARV on 10/31/24	SacSewer replaced damaged ARV on 10/31/24	N/A	SacSewer replaced damaged ARV on 10/31/24	None	SacSewer replaced damaged ARV on 10/31/24	N/A	None	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	897557	1.3	Certified	Ameal McLaurin	Sewer Supervisor 2		22-NOV-24	22-NOV-24	Monthly Category 3 Spill	1801 Tunnel Road, Oakland Ca	11/08/2024 07:32	11/08/2024 08:29	11/09/2024 09:27				Sewage was seeping out of the ground on the hillside, a small amount of water showed in parking garage in the property.	37.85756	-122.22273	Inside Building or Structure; Other (specify below)	Sewage was seeping out of the ground on the hillside, a small amount of water showed in parking garage in the property.		166	Sewage was seeping out of the ground on the hillside, a small amount of water showed in parking garage in the property, 	Y	1' diameter culvert storm line where the sewage was contained.	25				25	Building or Structure; Drainage Conveyance System; Unpaved Surface		Sewage was seeping out of the ground on the hillside where it soaked into the soil, about 1 gallon amount of water showed in parking garage in the property, and the sewage reached the storm inlet, where it was fully captured and recovered.	Y	37.85742	-122.2224							11/09/2024 09:27	Inside building garage paved concrete surface: 6'L x 3'W x .0026'D x 7.48-gal = .35 gal Wall: 6' L x 3'W x .0026'D x7.48-gal = .35 gal  Total inside garage: .35 + .35 = 1 gallon Unpaved soil on the hillside: 50'L x 4'W x .5'D x 7.48-Gal x >1875 = 140 g Recovered from storm line: 40'L x .5'W x .17'D x 7.48-gal = 25 gallons Unrecoverable gallons: 1 + 140 = 141 gallons Total spill: 1 + 140 + 25 =166 gallons  	The start time was based on eyewitness account. The end time was based on responding sewer staff restoring the flow in the mainline.	Root Intrusion		Gravity Mainline		Vitrified Clay		125	Sewage was seeping out of the ground on the hillside where it soaked into the soil, about 1 gallon amount of water showed in parking garage in the property, and the sewage reached the storm inlet, where it was fully captured and recovered.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Washed and recovered the spill from the storm line.	Staff raked and disinfected the area in the unpaved soil. Washed and recovered the spill from the storm line. Claim packet was provided to resident to have a restoration company to clean the garage. 	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Dig tag was created to dig and make spot repair in the mainline.	Added mainline to 3-month hydro high frequency maintenance program. W. O, # 1452251		11/09/2024 17:00	CCTV inspection found root intrusion to have been the main cause of the SSO, CCTV also found 2 places that need to be spot repaired.		N/A	11/09/2024 17:00														N/A	Added mainline to 3-month hydro high frequency maintenance program. W. O, # 1452251. Dig tags # 1571675 and 1571676.	Added mainline to 6-month power rodder high frequency maintenance program.	Dig tags # 1571675 and 1571676.	CCTV inspection was completed 11/9/24. Dig tags # 1571675 and 1571676 were created.	N/A	Added mainline to 3-month hydro high frequency maintenance program. W. O, # 1452251. Dig tags # 1571675 and 1571676.	Added mainline to 3-month hydro high frequency maintenance program. W. O, # 1452251. Dig tags # 1571675 and 1571676.	N/A	
8	8SSO10560	Active	Riverside City CS	Riverside City	897566	1.2	Amended	Kevin Street	Wastewater Field Operations Manager	20-NOV-24	02-DEC-24	02-DEC-24	Category 1 Spill	4080 Lime St.	11/18/2024 08:44	11/18/2024 09:00	11/18/2024 08:30	11/18/2024 11:07	24-6462		Spill originated from three co-located manholes and a nearby private cleanout. See attached photographs. 	33.97734	-117.37299	Lateral Clean Out (Private); Manhole		3 Manholes, one Private lateral cleanout	30258	See attached	Y	See attached	0	0	Overflowing manholes discharged into immediately adjacent catch basin. Discharge travelled approximately 1.9 miles through storm drain system and emerged at a large rectangular concrete major flood control channel discharging to the Santa Ana River. The flood control channel continues approximately 960 feet before discharging to a vegetated channel. The vegetated channel continues for another ~2700 feet before reaching the Santa Ana River. A water filled berm was located at the point where the underground storm system daylights and an earthen berm was located where the concrete channel turns vegetated. See attachments. 	30258	30258	Drainage Conveyance System that discharges to surface water		See attached Spill Summary document attached. Coordinates of spill destination included below. 	Y	33.97563	-117.39923							11/18/2024 10:33	Comparison of photographs of overflowing manholes and cleanout against those pictured in sewer spill estimation guide along with the associated flow rates. Nuisance flows receiving channel previously quantified under similar base flow conditions. City conservatively estimated that all existing nuisance flows were 100 percent contaminated from exposure to wastewater and included these as 100 percent lost over the 45 minute timeframe where full containment had not been established.  	Start time provided by County of Riverside employee who saw the overflowing manholes and called the City call center.  Responding technicians were able to discuss the findings an start time with the reporting party. 	Debris-General; Debris-Rags; Debris-wipes/Non-disposables; Inappropriate Discharge to Collection System; Vandalism (specify below)	Responding crews recovered three large (estimated 35-55 gallons) can-liner type trash bags from the collection system. Crews vacuumed approximately 30-50 pieces of trash from the surcharged manhole including plastic water bottles, Styrofoam cups, aluminum cans, and other paper trash and rags. Presumed that bags of trash may have been placed in the collection system causing the blockage. 	Gravity Mainline		Vitrified Clay		66	Spill entered storm drain catch basin and travelled approximately 1.9 miles to where it daylighted in a large county owned rectangular flood control channel which drains to a vegetated drainage.  The vegetated channel continues for approximately 2100 feet where it connects to the Santa Ana River. Staff identified cloudy water and could detect odor of sewage within the concrete flood control channel. There were visible shallow pools of water where the concrete and vegetated channels met; unable to confirm if these were sewage, but vacuumed dry regardless. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	See attached summary document/photolog. Cleared blockage. Installed dirt berm at the terminus of concrete flood control channel and water-filled containment dams within concrete channel. See attached photos. Cleaned and disinfected paved areas. Cleaned and flushed affected storm drain system and recovered flush water. City deployed 5 vacuum trucks to collect contained flows and to intercept those actively spilling. City deployed one 3  trash pump and 2, 2  submersible trash pumps to pump collected water into the sewer system.	Cleared blockage. Installed dirt berm at the terminus of concrete flood control channel and water-filled containment dams within concrete channel. See attached photos. Cleaned and disinfected paved areas. Cleaned and flushed affected storm drain system and recovered flush water. 	Other (specify below)	Install remote monitoring system in location of spill and in the area of clustered county and local government buildings. 	Install remote monitoring system in location of spill and in the area of clustered county and local government buildings. 	Estimated time to install remote monitor is 4 weeks depending on vendor availability. 	11/20/2024 15:36	Vandalism, discharge of materials to the collection system which should not be found there. Collections staff have engaged the source control section for help in trying to identify a potential source and for follow-up if one is found. 	Y	Attempt to identify a potential source and possible rule a member of the public or other party from opening a manhole and depositing trash in the collection system. 	12/20/2024 15:30	Santa Ana River	River		River	None observed from visual observations of downstream conditions beyond containment. No flows observed connecting to or discharging to the River Mainstem. 	Restricted Public Access		N/A	0	N	Y	Samples collected from water within containment and beyond containment berm within vegetated channel. 	Total and Fecal Coliform, Ammonia, TSS, TDS, COD									Attempt to identify a potential source and possible rule a member of the public or other party from opening a manhole and depositing trash in the collection system. 	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	897567	1.3	Certified	John J. Hough	San Dist. Superintendent	20-NOV-24	03-DEC-24	03-DEC-24	Category 1 Spill	352058	11/18/2024 15:03	11/18/2024 15:51	11/05/2024 10:00	11/18/2024 20:10	24-6472		See attached Spill Map with photos.	38.6389	-121.34	Lateral Clean Out (Public)			180	See attached Spill Map with photos.	Y	See attached Spill Map with photos.	47	0	See attached Spill Map with photos.	120	59	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See attached Spill Map with photos.	Y	38.6389	-121.34	38.63897	-121.3394	38.64443	-121.3416			11/18/2024 15:51	See attached Spill Volume estimation.	See attached Spill Volume estimation.	Root Intrusion		Lower Lateral		Acrylonitr. Butadiene Styrene (ABS); Vitrified Clay		17	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified Sacramento County Environmental Management Department	See attached Description of Spill Event.	Inspected Sewer Using CCTV to Determine Cause		See attached Description of Spill Event.	SacSewer inspected the lower lateral with CCTV on November 18, 2024. Based on the findings, SacSewer will re-inspect the lower lateral in 12 months to determine an appropriate preventative maintenance cleaning schedule.	11/18/2024 23:40	See attached Description of Spill Event.	N			Unnamed Tributary to Arcade Creek	Stream/Creek		See attached Description of Spill Event.	No observed impacts to aquatic life.	Other (specify below)	None	N/A	0	N	N												
4	4SSO10491	Active	Terminal Island CS	Los Angeles City Bureau of Sanitation	897571	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		13-MAR-25	13-MAR-25	Monthly Category 3 Spill	25530 South Waterman Way	11/20/2024 14:38	11/20/2024 15:30	11/20/2024 14:38				The initial crew arrived at 3:30 P.M. and discovered a 10-inch mainline sewer serving the referenced area backed up due to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed.	33.791822	-118.287879	Manhole			374	Spill coming from maintenance hole and the entire back up soaked into the ground.	N	No spill entered the drainage system.	0				0	Unpaved Surface	It was estimated that approximately 374 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground. 	33.791822 -118.287879	Y	33.791822	-1198.287879							11/20/2024 16:00	The SSO volume was estimated utilizing a standardized template which calculates the volume by using dimensional analysis.	VOLUME OF A SPILL CONTAINED IN A AREA  LENGTH 15 WIDTH 10 FEET DEPTH 4 IN  0.3333 FEET VOLUME 50.00 FT3 374 GALLONS	Other (specify below); Vandalism (specify below)	Illegal dumping of rocks and debris at maintenance hole	Gravity Mainline		Vitrified Clay		53	It was estimated that approximately 374 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground. 	N	Contained All or Portion of Spill; Restored Flow		On Wednesday, November 20, 2024, at 2:38 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 25530 South Waterman Way (TG 794-B5). A CWCD crew was immediately dispatched to the incident location and determined that the 10-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 4:00 PM. The cause of the blockage was attributed to vandalism. All necessary clean-up was then performed.  It was estimated that approximately 374 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.  	Post Spill CCTV		On Wednesday, November 20, 2024, at 2:38 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 25530 South Waterman Way (TG 794-B5). A CWCD crew was immediately dispatched to the incident location and determined that the 10-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 4:00 PM. The cause of the blockage was attributed to vandalism. All necessary clean-up was then performed.  It was estimated that approximately 374 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.  		11/20/2024 16:00	On Wednesday, November 20, 2024, at 2:38 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 25530 South Waterman Way (TG 794-B5). A CWCD crew was immediately dispatched to the incident location and determined that the 10-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 4:00 PM. The cause of the blockage was attributed to vandalism. All necessary clean-up was then performed.  It was estimated that approximately 374 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.  		None at this time	11/20/2024 16:00														None at this time	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	None at this time	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	None at this time	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	On Wednesday, November 20, 2024, at 2:38 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer leak at 25530 South Waterman Way (TG 794-B5). A CWCD crew was immediately dispatched to the incident location and determined that the 10-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 4:00 PM. The cause of the blockage was attributed to vandalism. All necessary clean-up was then performed.  It was estimated that approximately 374 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.  	None at this time	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	897574	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	21-NOV-24	02-DEC-24	02-DEC-24	Category 1 Spill	23rd Avenue & East 27th Street, Oakland Ca	11/19/2024 07:26	11/19/2024 08:45	11/19/2024 07:00				Sewage was seeping from a small sinkhole in the street, the sewage was flowing on the street curb and gutter and getting into a storm inlet.	37.79357	-122.22673	Gravity Mainline	Sewage was seeping from a small sinkhole in the street.		79	Sewage was seeping from a small sinkhole in the street, the sewage was flowing on the street curb and gutter and getting into a storm inlet.	Y	Underground 21  storm line called 14th Avenue and San Antonio creek. 	0	79	Underground 21  storm line called 14th Avenue and San Antonio creek. 	79	0	Drainage Conveyance System; Street/Curb and Gutter (2 3)		Sewage was seeping from a small sinkhole in the street, the sewage was flowing on the street curb and gutter and getting into a storm inlet.	Y	37.79357	-122.22673							11/19/2024 09:38	158 minutes x .5 GPM = 79 Gallons.	Start time was based on eyewitness account. End time was based on responding crew restoring the flow.	Pipe Structural Problem/Failure - Controls		Gravity Mainline		Vitrified Clay		17	No observable impact to surface water and/or environment.	N	Cleaned Up (specify below); Restored Flow		Sewer staff washed down affected areas in the curb and gutter.	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV; Repaired Facilities or Replaced Defect		Sewer staff cleared blockage to restore flow; created work request to repair pipe defect.	Anticipated completion of pipe repair work: 11/23/2024.	11/19/2024 13:54	Collapsed pipe identified by CCTV inspection.	N			San Antonio Creek	Stream/Creek		Urban waterway	None.	Other (specify below)	None.	N/A	0	N	N												
1	1SSO10086	Active	Yreka City CS	Yreka City	897577	1.0	Work In Progress						Monthly Category 3 Spill	Intersection of Greenhorn and Main Street	10/22/2024 11:17	10/22/2024 11:28	10/22/2024 11:13				Spill originated from a single manhole in intersection of Greenhorn Rd and Main street	41.71191	-122.64173	Manhole			89	spill was ponded on asphalt and concrete and a small amount entered a storm drain inlet	Y	spill entered a storm drain inlet on the south side of greenhorn Rd 	89				89	Drainage Conveyance System; Paved Surface		spill was ponded on a paved surface and a small amount entered a storm drain inlet		41.71192	-122.6417								spoke with reporting party and crew in area to determine official start time.  took photos of spill.  Recorded crew arrival and time plug was relived.  Used ponded sewage calculation to estimate spill at 67.7 gallons  Used Photo Manhole comparison to estimate spill at  110 Gallons  added numbers from ponded sewage calculation and Photo manhole comparison together and divided by 2 to come up with 88.9 Gallons.  Used water truck with clean water to clean area and flushed 1000 gallons into storm inlet and and had vacuum truck capture 100% of spill and clean water at down stream storm drain manhole 	Used ponded sewage calculation to estimate spill at 67.7 gallons  Used Photo Manhole comparison to estimate spill at  110 Gallons  added numbers from ponded sewage calculation and Photo manhole comparison together and divided by 2 to come up with 88.9 Gallons.	Debris from Construction		Gravity Mainline		Other (specify below)	Asbestos Concrete 	50	No impact fully Captured	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		immediately sent jetter truck to jet gravity sewer mainline and restore flow, and vacuum truck to set up on dry downstream storm drain manhole   Unplugged gravity mainline stopping spill then cleaned area  and flushed storm drain system with water truck.  Vacuum truck at down stream storm manhole waited for spill + clean water to arrived and captured the entirity of spill and clean water.  Then returned water + spill to be treated at Waste Water Treatment Plant	Adjusted Schedule/Method of Preventive Maintenance		Spill was caused by construction crew getting debris in manhole while raising the lid for a pavement resurfacing project.  we adjusted maintenance schedule to clean sewer mainline more frequently.		10/22/2024 12:45	debris for construction was visible in in manhole and chucks of asphalt were pulled back and removed from gravity mainline.  We ran the line several times and removed material until clean		keep monitoring entire system for spills	10/22/2024 03:30														Reporting spill spill to ciwqs	Better inspections during construction projects	Will Jet gravity mainline more frequently especially during pavement resurfacing projects where manhole covers have to be raised.	not scheduled in current projects	Restored flow of gravity mainline with Jetter Truck	This section of Mainline is not scheduled for improvements currently	Is on reoccurring work order in our asset management program	Always send a jetter truck to relieve blockage and a vacuum truck to capture spill	keep monitoring entire system for spills	
2	2SSO10179	Active	San Jose City CS	San Jose City	897580	1.2	Certified	Ben Nguyen	Senior Engineer	21-NOV-24	27-NOV-24	27-NOV-24	Category 2 Spill	949 Dorel Ave San Jose CA 95132	11/18/2024 17:10	11/18/2024 17:38	11/18/2024 16:00				Spill occurred on an public utility easement on a vacant lot. The nearest address is 949 Dorel Drive, San Jose CA 95132 	37.39788	-121.82905	Manhole			13400	Spill originates from a sanitary MH, located in public utility easement on a vacant lot of land. Water discharged out of the manhole and soaked to the ground which was mostly covered with dry grass and vegetation.  The spill did not reached any storm drain system or water body.	N						0	Unpaved Surface		The spill occurred on a system which is in an easement on a vacant undeveloped lot of land. Water flowed out of the MH and saturated to the ground which is covered w/ dry grass and weed. There is no storm drain system near by.  There is a creek nearby but water did reach the creek.  The creek is also dry at the time of responding to the spill event.	Y	37.399739988852	-121.829382359076							11/18/2024 21:35	Spill volume was estimated based on flow rate duration method.  Start time was assumed to be one hour fifteen minutes prior to the reporting party's (RP) notice of the spill. Duration was estimated at 355 minutes.  Flow rate was estimated as 40 gpm per video clip taken by the first responder. 	Spill start time was based on responding party obeservation and spill end time was based on when the pump crew began the overland diversion.	Pipe Structural Problem/Failure - Installation		Gravity Mainline		Other (specify below)	High Density Polyethylene 	14	There is no direct impact to the public.  The spill saturated to the ground which is covered with grass and dry vegetable. The area doesn't appears to be commonly accessible by the public. 	N	Restored Flow	A temporary overland diversion was set up to temporarily restore the flow. Repair of the collapse segment was performed the next day. 	Attempted to clear the plug; discover issue with the pipe's structure Install temporary overland diversion system  Repair the collapsed pipe with open cut method. Break down overland diversion setup  Continue to monitor the structure due to known soil movement in the area 	Other (specify below); Post Spill CCTV; Repaired Facilities or Replaced Defect	Staff is in discussion for a long-term solution with Dept of Public Work. 	Staff performed repair the collapsed pipe immediately after the spill event.  Staff is in discussion for a long-term solution with Dept of Public Work.  	Staff is in discussion for a long-term solution with Dept of Public Work. 	11/18/2024 21:30	The area is known to have soil movement.  Staff investigated with CCTV video and found that the segment was collapsed.This is clear evident of major soil movement.   Staff will monitor the area with regular inspection of MHs within the easement.  	N		01/30/2025 11:00										N													
2	2SSO10109	Active	Concord City CS	Concord City	897584	1.4	Certified	Pernise Seumanutusa	Public Works Supervisor	21-NOV-24	03-DEC-24	03-DEC-24	Category 2 Spill	1908 yardley crt	11/21/2024 12:15	11/21/2024 07:40	11/21/2024 04:48	11/21/2024 08:28	24-6520		1 appearance point out of manhole see pics	37.95778	-121.94237	Gravity Mainline; Manhole	na	na	7160	spill on street curb and gutter, see pics	Y	see attached pics	7160	0			7160	Building or Structure; Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Spilled to multiple areas, storm drain, curbs and property	N									11/21/2024 07:47	Start time, end time and estimated volume of flow based on picture comparison.	Pictures were calculated with testing equipment and labeled by GPM.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		50	No impact	N	Restored Flow		Spill was recovered from storm drains with vactor, Contained by sand bags. curbs washed down with disinfectant, sweeper and vactor water, all contaminated areas was retrieved. 	Adjusted Schedule/Method of Preventive Maintenance		Area was missed on schedule, improvements on QAQC.	n/A	11/21/2024 08:03	Block mainline was CCTV'd and was determined based on grease deposits in line in the area of blockage. Grease block was also spotted flowing down and caught in basket. 	N												N													
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	897320	2.2	Certified	Daniel Whitlock	Manager	04-NOV-24	20-DEC-24	20-DEC-24	Category 2 Spill	775 Corbett St.	10/28/2024 09:00	10/28/2024 09:30	01/24/2024 08:00				Gravity mainline and upper lateral at 775 Corbett St. Asset number P-94098 affected. Spill embedded into backyard dirt and came out of retaining wall onto the sidewalk.	37.75423	-122.442122	Gravity Mainline; Lateral Clean Out (Private); Lower Lateral (Private)			50688	Spill embedded into backyard dirt and came out of retaining wall drain onto the sidewalk.	N						50688	Other (specify below); Paved Surface; Street/Curb and Gutter (2 3)	Combined Sewer System	Spill embedded into backyard dirt of 775 Corbett and came out of a retaining wall onto the street sidewalk. It made its way back into the combined system through catch basin N-30526.	Y	37.75423	-122.442122							11/14/2024 17:00	Flow Duration	household uses 96 gallons of water a day (2 households in building) = 196 gal a day  Start time 8:00 am on 2/24/2024.  264 days had passed since spill started..  264 x 192 = 50688 gallons.  All spill went back into the combined system.   	Other (specify below); Root Intrusion	Pipe Structural Problem/Failure - Collapsed pipe	Gravity Mainline		Vitrified Clay		77	Spill embedded into backyard dirt and came out of retaining wall drains onto the sidewalk. No road closures or blockages.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified	Returned all spill to combined sewer system.	Arrival time at 9:30 am. Dye tested upper lateral which confirmed a positive spill. Vactor arrived at 10:00am and started cleaning and containing spill. CCTV on 10/29/2024 confirmed collapsed pipe for asset P-94098. Contaminated dirt to be replaced.	Inspected Sewer Using CCTV to Determine Cause		Repair for asset P-94098 scheduled.	10/28/2024 - Notified of spill and dispatched to clean and disinfect area (#8601637) 10/29/2024 - CCTV confirmed collapsed pipe (#8604506) WO to repair collapsed pipe and replace dirt completed on 11/18/2024 (#8604629) Spill was stopped on 11/14.	11/18/2024 13:45	Collapsed pipe caused the spill.	N												N													
2	2SSO10177	Active	San Carlos City CS	San Carlos City	897587	1.1	Certified	Seven J Machida	Public Works Director		21-NOV-24	21-NOV-24	Monthly Category 3 Spill	408 Pearl	10/14/2024 17:14	10/14/2024 17:41	10/14/2024 17:10				Spill originated at manhole BC/07 which is located outside of 408 Pearl	37.48671	-122.25565	Manhole			222	Spill traveled as far at 1907 St Francis 	N						222	Street/Curb and Gutter (2 3)		Spill traveled in the street curb and gutter from 408 Pearl to 1907 St. Francis	Y	37.49012	-122.25145							10/14/2024 17:49	Street measurements were taken at the time of the spill and documented. The area volume method was used by calculating the area and converting the spill thickness into gallons.	A measuring wheel was utilized to accurately take the measurements of the area.	Debris-General; Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		75	The spill was in the street curb and gutter. No other impact	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Combination truck was used for clean up and containment. 	Post Spill CCTV		CCTV taken and line cleaned.		10/14/2024 19:15	CCTV found roots and grease to be the likely cause of the spill.		None	10/15/2024 14:38														NA	Future CIP	On 6 month cleaning schedule	NA	CCTV	NA	NA	NA	None	
2	2SSO10115	Active	South San Francisco City CS	South San Francisco City	897589	1.3	Certified	David A. Bockhaus	Deputy Director of Public Works	22-NOV-24	27-NOV-24	27-NOV-24	Category 1 Spill	161 Longford Dr	11/10/2024 08:46	11/10/2024 09:36	11/10/2024 07:45			22-NOV-24	The spill originated from two appearance points, the first being the lower private lateral at 161 Longford Drive South San Francisco, Ca. 94080 (37.6625954, -122.4583367) The lateral spill flowed down the curb and gutter line where it made its way into the catch basin (sM1045) on the corner of Longford Dr. and Clay Ave. (37.6625888, -122.4582300)  The second appearance point was from a manhole (wF24) on Longford Drive and Adrian Avenue. (37.6625591, -122.4583474) The overflow from the manhole spread out in two directions on the paved asphalt area and was fully recovered.   	37.6625591	-122.4583474	Gravity Mainline; Lower Lateral (Private); Manhole			116	The lower private lateral at 161 Longford Drive South San Francisco, Ca. 94080 (37.6625954, -122.4583367) The lateral spill flowed down the curb and gutter line where it made its way into the catch basin (sM1045) on the corner of Longford Dr. and Clay Ave. (37.6625888, -122.4582300) Once the spill entered the storm conveyance system it entered the storm mainline where it continued to travel unrecovered to Colma Creek. (37.666853, -122.449438)	Y	The drainage conveyance system consists of two different types of pipes which go up in diameter as it travels from Longford Dr. and ends at Colma Creek. The two types of pipes that make up the storm conveyance system are RCP and CSP. The Various sizes range from a 15-inch diameter pipe to a 96-inch diameter pipe.	19	97	The spill traveled 3,522.63 feet to the discharge point into Colma Creek. (37.666853, -122.449438)	97	19	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface		The spill originated from two appearance points, the first being the lower private lateral at 161 Longford Drive South San Francisco, Ca. 94080 (37.6625954, -122.4583367) The lateral spill flowed down the curb and gutter line where it made its way into the catch basin (sM1045) on the corner of Longford Dr. and Clay Ave. (37.6625888, -122.4582300) Once the spill entered the storm conveyance system it entered the storm mainline where it continued to travel unrecovered to Colma Creek. (37.666853, -122.449438)  The second appearance point was from a manhole (wF24) on Longford Drive and Adrian Avenue. (37.6625591, -122.4583474) The overflow from the manhole spread out in two directions on the paved asphalt area and was fully recovered.  	Y	37.6625954	-122.4583367	37.6625591	-122.4583474	37.6625888	-122.45823	37.666853	-122.449438	11/10/2024 10:03	The spill area around the manhole was broken up into two sections. The measured volume method was used to calculate the total spill from this appearance point.  For the spill that came from the lower private lateral, the upstream connections method was used to calculate the total spill from this appearance point.	The spill start time was determined by the speaking with witness/resident who stated when she was outside the spill had just started at 7:45am.  The spill end time was determined by the crew from the blockage being removed and the mainline being restored to normal flow. The crew documented this time to be 10:03am.	Debris from Lateral; Pipe Structural Problem/Failure - Controls		Gravity Mainline; Lower Lateral; Manhole		Vitrified Clay		75	The spill impacted the area of Longford Dr at Adrian Ave as it disrupted the sidewalk and disrupted the street where the crew needed to set up to flush our mainline. The spill from 161 Longford Drive's lateral impacted the curb and gutter as it flowed downhill until reaching the storm catch basin at the corner of Longford Dr. and Clay Ave. It is at this location the spill entered the storm conveyance system and what was not recovered, made its way to end point and discharged to Colma Creek.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Upon arrival the crew set up the Vaccon at the catch basin to recover the remaining flow of the spill as the Jetter truck was setup at the manhole to release the plug. Once the mainline was restored to normal flow and the overflows had been mitigated the crew began cleanup. They snaitized all areas of the spill, washed down and recovered with Vaccon.	Adjusted Schedule/Method of Preventive Maintenance; Post Spill CCTV		Steps that are being implemented are as follows: 1. will be CCTV on 11/25/24 and if any failures are found they will be addressed immediately. 2. if no pipe failures are found then moving forward this mainline will be put on the six-month flushing schedule instead of the yearly.  3. ongoing and continuous spill response training for all crew with emphasis on training for our after-hours standby members.	The mainline is on schedule for CCTV on 11/25/24 by sewer lead. spill response training will be an ongoing process that will start the week of 11/25/24.	11/10/2024 14:18	The investigation on this spill is that a piece of VCP was stuck in the line causing the blockage and was able to be removed. Once we have video footage on 11/25/25 of the mainline we will know if there are any repairs needed to be made.	Y	At this time we have the line scheduled for video inspection on 11/25/24 and until that is completed and all questions answered, we will keep this as an ongoing investigation. 	11/25/2024 08:30	Colma Creek	Slough; Stream/Creek		Colma Creek is a navigable slough.	did not observe any impact on aquatic life.	Other (specify below)	public access was not impacted because Cloma Creek cannot be closed as it is a navigable slough.	cannot be closed as it is a navigable slough.	0	N	N											At this time we have the line scheduled for video inspection on 11/25/24 and until that is completed and all questions answered, we will keep this as an ongoing investigation. 	
1	1SSO10058	Active	Rio Dell City CS	Rio Dell City	897599	1.2	Certified	Sunshine Kelly	Wastewater Superintendent	23-NOV-24	27-NOV-24	27-NOV-24	Category 1 Spill	End of Painter Street Manhole	11/20/2024 06:30	11/20/2024 07:40	11/20/2024 03:30	11/20/2024 10:07	24-6494		The spill was located at the Painter Street manhole at 556 Painter St. Photos attached show spill location. 	40.503117	-124.093756	Manhole			39600	The spill was located at the Painter Street manhole and flowed down the gravel ditch away from the residential area toward the Eel River, river bar. Photos show the sandbags, and ditch in place to direct the flow away from the residential area. 	N				Photographs show that the spill during daylight hours never made it to the river. 	13600	26000	Surface Water		The Spill flowed to the Eel River at Latitude/ Longitude: 40.503055, -124.091890.	Y	40.503055	-124.09189							11/20/2024 18:30	The volume estimation was based on flow monitoring at the site as well as supervisory control from SCADA based on the trend of the Painter Street lift station wet well level and pump control and the influent flow data into the plant. Volume estimation of spill recovery was based on the volume of the Vactor. the Vactor truck carries 2000 gallons and thirteen full recoveries were completed during the duration of the spill.	The methodology of the spill start time was based on supervisory control based on SCADA of the data collected on the Painter Street Pump station trend, and the rain gauge at the Wastewater treatment plant. We were prepared for the event and had sandbags, a ditch to convey the spill away from residential properties, signs posted and the Vactor truck was on standby to respond once notified of spill.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Other (specify below)	The failure is that the sanitary sewer main at this location was constructed with a 90 degree turn at this manhole and the earthquake in December of 2022 destroyed sewer mains, and private laterals allowing more I&I to enter this portion of the sanitary sewer system. An upsizing project for this section of the sanitary sewer system is in the works since 2019 and will hopefully see some forward momentum with state funding this spring and summer, before the next wet season. CCTVing is an ongoing process under the current SSES, and a few key areas had camera work done to them just before this storm started.	55	There was no impact to residence, or private property, or human life as spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage posted, Vactor Truck on standby, and the property owners were made aware of the issue at this site location.	Y	Cleaned Up (specify below)		Spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage installed, property owners were notified and the Vactor on standby. During and after spill the area was monitored to keep clean if there were any sewage debris. After the spill event the ditch was cleaned and sprayed with chlorine solution for disinfection. 	Plan Rehabilitation or Replacement of Sewer		This site has a planned upsizing project in the planning phases for the past 6 years. Currently waiting on State funding to push the design process forward. Also looking to camera sewer mains and do a smoke test of the laterals in the area that lead to the Painter Street Pump Station.	Camera work was completed on parts of the sewer mains  that tie into this portion of the Painter main. Camera work shows some areas of separation and locations of active I&I. GHD is still working with the State to secure funding for the Painter upsizing project.	11/20/2024 18:43	This SSO occurred due to the high levels of I&I. Several days of rain and saturation of the ground caused the pump station to become overwhelmed when large amount of rain occurred at once and caused the SSO at this location, the Painter Street manhole.	N			Eel River	River		The Eel River is a large river that runs north on the east side of the City of Rio Dell. There are no Surface Water users downstream of the SSO discharge location. 	No known impacts to aquatic life.	Restricted Public Access		City of Rio Dell Wastewater Superintendent and the City of Rio Dell P.D.	1	N	Y	A sample was taken upstream in the river of the spill location; RSW-001U: Latitude/Longitude (40.496013, -124.093796) A sample was taken where the spill stream enters the Eel River; RSW-001: Latitude/Longitude (40.503055, -124.091890)  A sample was taken downstream in the river of the spill location; RSW-001D: Latitude/Longitude (40.508887, -124.111481) 	E.coli and Ammonia										
2	2SSO10166	Active	Piedmont City CS	Piedmont City	897620	1.2	Certified	Daniel Gonzales	Public Works Director		05-DEC-24	05-DEC-24	Monthly Category 3 Spill	101 Bonita Avenue Piedmont CA 94611	10/25/2024 16:15	10/25/2024 16:30	10/14/2024 07:00				SSO was intermittent for a manhole along back yard fence line.	37.82866	-122.23606	Manhole			350	Spill was intermittent and in back yard of 101 Bonita Ave and 108 Hillside Ave.	N						0	Unpaved Surface		Spill event destinations were in neighboring yards at 101 Bonita and 108 Hillside	Y	37.82866	-122.23606	37.82856	-122.23653					10/25/2024 17:30	Spill area was a triangle. Estimation was based on square footage and water volume calculated in 3  depth	Start time was from when the resident said she noticed her yard a little more wet than usual. 	Pipe Structural Problem/Failure - Installation; Root Intrusion		Gravity Mainline		Other (specify below)	HDPE	20	The spill was intermittent and made neighboring yard muddier than usual.	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow		There was no active spill on arrival. All bio-solids were raked up and disposed at the corp yard	Inspected Sewer Using CCTV to Determine Cause		Will be scheduling repair of faulty joint.		10/25/2024 19:00	CCTV the pipe section 10/28/24. Discovered a root intrusion in a connection. Will be scheduling a spot repair		None	10/28/2024 09:00														N/A	Spot repair will remedy the situation	N/A	The faulty connection will be replaced	Inspected. Will repair in prioritized fashion	N/A	Work order in CMMS	We will perform spot repair repair by excavation	None	
1	1SSO10058	Active	Rio Dell City CS	Rio Dell City	897623	1.2	Certified	Sunshine Kelly	Wastewater Superintendent	23-NOV-24	03-DEC-24	03-DEC-24	Category 1 Spill	End of Painter Street Manhole	11/21/2024 06:00	11/21/2024 07:00	11/21/2024 03:15	11/21/2024 07:02	24-6516		The spill was located at the Painter Street manhole at 556 Painter St. No pictures at the time of the spill as it was not noticed till after it had occurred. Spill duration was only an hour.	40.503117	-124.093756	Manhole			4800	The spill was located at the Painter Street manhole and flowed down the gravel ditch away from the residential area toward the Eel River, river bar. Photos show the sandbags, and ditch in place to direct the flow away from the residential area.  	N				There were no photographs taken of the spill. At this time the river had not risen to meet the spill.	4800	0	Surface Water		The Spill flowed to the Eel River at Latitude/ Longitude: 40.503055, -124.091890.	Y	40.503055	-124.09189							11/21/2024 04:15	The volume estimation was based on flow monitoring at the site as well as supervisory control from SCADA based on the trend of the Painter Street lift station wet well level and pump control and the influent flow data into the plant.	The methodology of the spill start time was based on supervisory control based on SCADA of the data collected on the Painter Street Pump station trend, and the rain gauge at the Wastewater treatment plant. We were prepared for the event and had sandbags, a ditch to convey the spill away from residential properties and signs posted.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Other (specify below)	The failure is that the sanitary sewer main at this location was constructed with a 90 degree turn at this manhole and the earthquake in December of 2022 destroyed sewer mains, and private laterals allowing more I&I to enter this portion of the sanitary sewer system. An upsizing project for this section of the sanitary sewer system is in the works since 2019 and will hopefully see some forward momentum with state funding this spring and summer, before the next wet season. CCTVing is an ongoing process under the current SSES, and a few key areas had camera work done to them just before this storm started.	55	There was no impact to residence or private property, or human life as spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage and the property owners were made aware of the issue at this site location.	Y	Cleaned Up (specify below)		After spill the area was monitored to keep clean if there were any sewage debris. After the spill event the ditch was cleaned and sprayed with chlorine solution for disinfection.	Plan Rehabilitation or Replacement of Sewer		This site has a planned upsizing project in the planning phases for the past 6 years. Currently waiting on State funding to push the design process forward. Also looking to camera sewer mains and do a smoke test of the laterals in the area that lead to the Painter Street Pump Station.	Meeting with the State Water Control Board and Engineering company GHD on January 24th, 2024, provided some comfort that the State would approve the funding of this project, and the City of Rio Dell can start the design process. CCTV-ing of some of the sewer mains that lead to the pump stations up stream of this manhole were just completed before this rain event. The data is being reviewed at this time. 	11/21/2024 08:55	This SSO occurred due to the high levels of I&I. Several days of rain and saturation of the ground caused the pump station to become overwhelmed when large amount of rain occurred at once and caused the SSO at this location, the Painter Street manhole.	N			Eel River	River		The Eel River is a large river that runs north on the east side of the City of Rio Dell. There are no Surface Water users downstream of the SSO discharge location. 	No known impacts to aquatic life.	Restricted Public Access		City of Rio Dell Wastewater Superintendent and the City of Rio Dell P.D.	1	N	N												
1	1SSO10058	Active	Rio Dell City CS	Rio Dell City	897624	1.2	Certified	Sunshine Kelly	Wastewater Superintendent	23-NOV-24	03-DEC-24	03-DEC-24	Category 1 Spill	End of Painter Street Manhole	11/21/2024 12:50	11/21/2024 12:50	11/21/2024 12:45	11/21/2024 14:29	24-6544		The spill was located at the Painter Street manhole at 556 Painter St. Photos attached show spill location. 	40.503117	-124.093756	Manhole			16500	The spill was located at the Painter Street manhole and flowed down the gravel ditch away from the residential area toward the Eel River, river bar. Photos show the sandbags, and ditch in place to direct the flow away from the residential area. A Vactor Truck was there to pick up what they could in the extreme weather.	N				Do to the extreme rain my phone got wet and would not take pictures.	10500	6000	Surface Water		The Spill flowed to the Eel River at Latitude/ Longitude: 40.503055, -124.091890.	Y	40.503055	-124.09189							11/21/2024 17:20	The volume estimation was based on flow monitoring at the site as well as supervisory control from SCADA based on the trend of the Painter Street lift station wet well level and pump control and the influent flow data into the plant. Volume estimation of spill recovery was based on the volume of the Vactor. the Vactor truck carries 2000 gallons and three full recoveries were completed during the duration of the spill. 	The methodology of the spill start time was based on supervisory control based on SCADA of the data collected on the Painter Street Pump station trend, and the rain gauge at the Wastewater treatment plant. We were prepared for the event and had sandbags, a ditch to convey the spill away from residential properties, signs posted and the Vactor truck was on standby to respond once notified of spill.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Other (specify below)	The failure is that the sanitary sewer main at this location was constructed with a 90 degree turn at this manhole and the earthquake in December of 2022 destroyed sewer mains, and private laterals allowing more I&I to enter this portion of the sanitary sewer system. An upsizing project for this section of the sanitary sewer system is in the works since 2019 and will hopefully see some forward momentum with state funding this spring and summer, before the next wet season. CCTVing is an ongoing process under the current SSES, and a few key areas had camera work done to them just before this storm started.	55	There was no impact to residence or private property, or human life as spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage and the property owners were made aware of the issue at this site location.	Y	Cleaned Up (specify below); Contained All or Portion of Spill		Spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage installed, property owners were notified and the Vactor on standby. Vactor responded once SSO was known. During and after spill the area was monitored to keep clean if there were any sewage debris. After the spill event the ditch was cleaned and sprayed with chlorine solution for disinfection. 	Plan Rehabilitation or Replacement of Sewer		This site has a planned upsizing project in the planning phases for the past 6 years. Currently waiting on State funding to push the design process forward. Also looking to camera sewer mains and do a smoke test of the laterals in the area that lead to the Painter Street Pump Station.	Meeting with the State Water Control Board and Engineering company GHD on January 24th, 2024, provided some comfort that the State would approve the funding of this project, and the City of Rio Dell can start the design process. CCTV-ing of some of the sewer mains that lead to the pump stations up stream of this manhole were just completed before this rain event. The data is being reviewed at this time.  	11/21/2024 17:30	This SSO occurred due to the high levels of I&I. Several days of rain and saturation of the ground caused the pump station to become overwhelmed when large amount of rain occurred at once and caused the SSO at this location, the Painter Street manhole. The Eel River rose 30 feet in less than 48 hours, and the area received over 8 inches of rain in five days. 	N			Eel River	River		The Eel River is a large river that runs north on the east side of the City of Rio Dell. There are no Surface Water users downstream of the SSO discharge location.  	No known impacts to aquatic life	Restricted Public Access		City of Rio Dell Wastewater Superintendent and the City of Rio Dell P.D.	1	N	N												
4	4SSO11423	Active	Long Beach Water Dept. CS (SSO program)	Long Beach City, Water Dept	897626	1.1	Certified	Jennifer Rojas	Senior Director 		24-DEC-24	24-DEC-24	Monthly Category 3 Spill	6481 Surrey Dr. Long Beach CA.	11/16/2024 21:26	11/16/2024 22:10	11/16/2024 18:00				The spill originated at a Private floor drain in the house located at 6481 Surrey Dr.	33.77549	-118.10492	Inside Building or Structure			638	The spill originated at the laundry room floor drain at 6481 Surrey Dr. collecting in laundry room, living room and Kitchen. The spill also exited the house to the back yard into floor a drain which led to the street. From there a small amount of sewage traveled into the street curb and gutter.	N	N/A	0				638	Building or Structure; Street/Curb and Gutter (2 3)		The spill originated from a floor drain in the laundry room at 6481 Surrey Dr. collecting sewage the living room and kitchen area. Then the spill exited the house into the backyard drain and flowed into the street curb and gutter where it was contained. Our emergency response crew immediately contacted Ocean Blue Environmental to vacuum and clean all contaminated areas.	Y	33.77549	-118.10492							11/16/2024 22:43	The spill was calculated by adding the square footage of all the affected  areas and then multiplied by the water depth. Where the dimensions are, total affected area = 512 sq feet x the water depth 2 inches and the conversion factor of 7.48 for gallons to convert the result to gallons = 638 gallons.	The Homeowner at 6481 Surrey Dr. stated that she noticed water in the living room at 18:00. Immediately she contacted her Son in-law. 	Other (specify below)	Protruding sewer liner installed in lateral line at 6480 Surrey Drive	Gravity Mainline		Vitrified Clay		55	The sewage spill impacted approximately 512 square feet of interior living space at 6481 Surrey Dr., affecting the laundry room, living room, and kitchen areas. A small amount of sewage reached the street's curb and gutter but was quickly contained. All affected areas were promptly cleaned and sanitized by Ocean Blue Environmental using professional vacuum and cleaning equipment. No long-term environmental impact is expected as the spill was fully contained and recovered. There was no public health risk as the spill did not reach any drainage conveyance system or water bodies.	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Description of spill response activities: Upon notification at 21:26, our emergency response crew was dispatched and arrived on scene at 22:10. The crew immediately assessed the situation and implemented containment measures to prevent further spread of sewage. Ocean Blue Environmental was contacted for professional cleaning services. The response activities included:  1. Initial containment of sewage in affected areas 2. Deployment of vacuum equipment to remove standing sewage 3. Professional cleaning and sanitization of all impacted interior spaces (laundry room, living room, and kitchen) 4. Monitoring and containment of sewage in street curb and gutter 5. Complete extraction of all contaminated water and debris 6. Final sanitization and decontamination of all affected surfaces  All cleanup activities were completed on 11/17/2024, with full recovery of the estimated 638 gallons of sewage. 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	The protruding sewer liner in the lateral line at 6480 Surrey Drive was removed to restore proper flow and prevent future blockages. The line was inspected via CCTV after removal to confirm the correction was successful.	The protruding liner was removed and the pipe segment has undergone thorough hydro-jetting. We will continue with our preventive maintenance program and ensure that our staff follows proper cleaning procedures.		11/17/2024 02:30	A Post CCTV inspection was carried out on 11/19/2024 to investigate the cause of the stoppage. The inspection revealed that the stoppage was caused by a protruding liner installed in a sewer lateral. In order to ensure normal flow of waste water, the liner was removed. Additionally, the pipe segment was thoroughly hydro-jetted, effectively resolving the issue.		There is no ongoing investigation.	11/19/2024 10:25														The Long Beach health Department was notified.	We have a 2-year Prevented Sewer Maintenance Program to ensure the long-term health and functionality of our sewer system.	We will proceed with our preventive maintenance program for this pipe segment and ensure that the cleaning is completed according to the schedule.	There is no planned rehabilitation or replacement of this pipe segment.	CCTV Inspections were conducted in order to identify the cause and location of the blockage. A protruding liner was identified as being the main cause of the blockage. Appropriate measures were taken to remove the liner.	There is none planned.	No modifications have been made to the system or operating procedures. The protruding liner was removed to ensure normal flow in the pipe.	We will continue following our spill response procedures for containment and clean-up efforts.	There is no ongoing investigation.	
1	1SSO10035	Active	Gualala CS	Gualala CSD	897627	1.1	Certified	Chris Troyan	General Manager		23-NOV-24	23-NOV-24	Category 1 Spill	Lift Station #3	11/22/2024 06:59	11/22/2024 07:48	11/22/2024 02:00	11/22/2024 07:54	24-6579		38600 Coral Court Gualala Ca, 95445	38.77285	-123.54048	Pump Station			99000	Our lift station#3 automatic controls failed, which caused the pumps not to turn on. Due to the pumps not running the pump station overflowed and approximately 99,000 gallons of raw wastewater spilled into a storm drain next to the lift station, which drains to the Pacific Ocean. We estimate the lift station overflowed for approximately six hours. 	Y		0	0	There is a storm storm drain approximately 15-20 feet from the lift station. The road is design to catch water run off and direct it to that storm drain. All of the raw wastewater flowed into this storm drain and emptied into the Pacific Ocean, which makes recovery impossible.	99000	0	Drainage Conveyance System that discharges to surface water		Our lift station#3 automatic controls failed, which caused the pumps not to turn on. Due to the pumps not running the pump station overflowed and approximately 99,000 gallons of raw wastewater spilled into a storm drain next to the lift station, which drains to the Pacific Ocean. We estimate the lift station overflowed for approximately six hours. The coordinates are 38.77285, -123.54048.	Y	38.77285	-123.54048							11/22/2024 08:00	We used the estimated flow coming into the lift station multiplied by the numbers of hours the station was not pumping. 	The start time was estimated on when the last operator physically checked the lift station and the end time was estimated based on the operators arrival time after being notified. 	Pump Station Failure - Controls; Pump Station Failure - Mechanical; Rainfall Exceeded Design, I and I (Separate Collection System Only)		Pump Station - Controls; Pump Station - Mechanical		Ductile Iron		34	The impact of the spill is believe to be minimal because of a dilution factor based on receiving over 14  of rain in a two an half day timeframe.	Y	Contained All or Portion of Spill		I received a notification the lift station was overflowing around 7am I arrived on scene at approximately 8am. I immediately turn both pumps in hand and began pumping the station, which ended the overflowing instantly. I would have arrived sooner but I was working on other storm related issues. The pump station is currently being ran with a backup generator using a float with the remote start feature. When the float comes up the generator starts and when the float goes down the generator shuts off. 	Plan Rehabilitation or Replacement of Sewer		On Monday November 25th our SCADA team will arrive to trouble shoot the pump station and repair all necessary items to ensure the pump station is operational.	N/A	11/22/2024 08:00	Our lift station#3 automatic controls failed, which caused the pumps not to turn on. Due to the pumps not running the pump station overflowed and approximately 99,000 gallons of raw wastewater spilled into a storm drain next to the lift station, which drains to the Pacific Ocean. We estimate the lift station overflowed for approximately six hours.	N			Pacific Ocean	Ocean		Pacific Ocean	N/A	Other (specify below)	No public access impact occurred.	N/A	0	N	N												
1	1SSO10058	Active	Rio Dell City CS	Rio Dell City	897629	1.2	Certified	Sunshine Kelly	Wastewater Superintendent	23-NOV-24	03-DEC-24	03-DEC-24	Category 1 Spill	East Painter Street Man Hole	11/22/2024 05:15	11/22/2024 06:30	11/21/2024 23:20	11/22/2024 07:21	24-6550	23-DEC-24	The spill was located at the Painter Street manhole at 556 Painter St.  Photos attached show spill location. 	40.503117	-124.093756	Manhole			74300	#9) The spill was located at the Painter Street manhole and flowed down the gravel ditch away from the residential area toward the Eel River, river bar.  Photos show the sandbags, and ditch in place to direct the flow away from the residential area. 	N				Photos show that the Eel river had risen 30 feet, and the spill stream entering the rising Eel River.	34300	40000	Surface Water		The Spill flowed to the Eel River at Latitude/ Longitude: 40.503055, -124.091890.	Y	40.503055	-124.09189							11/22/2024 14:30	The volume estimation was based on flow monitoring at the site as well as supervisory control from SCADA based on the trend of the Painter Street lift station wet well level and pump control and the influent flow data into the plant. Volume estimation of spill recovery was based on the volume of the Vactor. the Vactor truck carries 2000 gallons and twenty full recoveries were completed during the duration of the spill. 	The methodology of the spill start time was based on supervisory control based on SCADA of the data collected on the Painter Street Pump station trend, and the rain gauge at the Wastewater treatment plant. We were prepared for the event and had sandbags, a ditch to convey the spill away from residential properties, signs posted and the Vactor truck was on standby to respond once notified of spill the Vactor proceeded to recover 20 loads.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Other (specify below)	The failure is that the sanitary sewer main at this location was constructed with a 90 degree turn at this manhole and the earthquake in December of 2022 destroyed sewer mains, and private laterals allowing more I&I to enter this portion of the sanitary sewer system. An upsizing project for this section of the sanitary sewer system is in the works since 2019 and will hopefully see some forward momentum with state funding this spring and summer, before the next wet season. CCTVing is an ongoing process under the current SSES, and a few key areas had camera work done to them just before this storm started.	55	There was no impact to residence or private property, or human life as spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage and the property owners were made aware of the issue at this site location.	Y	Cleaned Up (specify below); Contained All or Portion of Spill		Spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage installed, property owners were notified and the Vactor on standby. During and after spill the area was monitored to keep clean if there were any sewage debris. After the spill event the ditch was cleaned and sprayed with chlorine solution for disinfection. 	Plan Rehabilitation or Replacement of Sewer		This site has a planned upsizing project in the planning phases for the past 6 years. Currently waiting on State funding to push the design process forward. Also looking to camera sewer mains and do a smoke test of the laterals in the area that lead to the Painter Street Pump Station.	Meeting with the State Water Control Board and Engineering company GHD on January 24th, 2024, provided some comfort that the State would approve the funding of this project, and the City of Rio Dell can start the design process. CCTV-ing of some of the sewer mains that lead to the pump stations up stream of this manhole were just completed before this rain event. The data is being reviewed currently. 	11/22/2024 15:10	This SSO occurred due to the high levels of I&I. Several days of rain and saturation of the ground caused the pump station to become overwhelmed when large amount of rain occurred at once and caused the SSO at this location, the Painter Street manhole. The area recevied 8 inches of rain in five days.	N			Eel River	River		The Eel River is a large river that runs north on the east side of the City of Rio Dell. There are no Surface Water users downstream of the SSO discharge location. 	No known impacts to aquatic life. The Eel river rose 30 feet in 48 hours.	Restricted Public Access		City of Rio Dell Wastewater Superintendent and the City of Rio Dell P.D.	2	N	Y	A sample was taken upstream in the river of the spill location; RSW-001U: Latitude/Longitude (40.496013, -124.093796). A sample was taken where the spill stream enters the Eel River; RSW-001: Latitude/Longitude (40.503055, -124.091890). A sample was taken downstream in the river of the spill location; RSW-001D: Latitude/Longitude (40.508887, -124.111481).	Per the City of Rio Dell SSO Water Quality Monitoring Plan Samples were analyzed for E.coli and Ammonia.										
5S	5SSO10958	Active	Grass Valley City CS	Grass Valley City	897630	1.1	Work In Progress						Category 1 Spill	201 Cypress Hill	11/22/2024 09:00	11/22/2024 09:00	11/22/2024 08:30				Spill from manhole due to clog in mainline. Spill entered paved surface, gutter, and storm drain, ultimately reaching public land.	39.22731	-121.05899	Manhole			500	Spill from manhole due to clog in mainline. Spill entered paved surface, gutter, and storm drain, ultimately reaching public land.	Y	Spill entered storm drain that ultimately reaches public land.	350	150	The storm drain discharges into public land.	0	350	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		spilled from manhole into gutter, storm drain, and ultimately to public land.	Y	39.22731	-121.05899							11/22/2024 10:00	visual observation	visual observation	Debris-General		Gravity Mainline		Vitrified Clay		50	spilled from manhole into gutter, storm drain, and ultimately to public land. Crew immediately contained and mitigated the spill, recovering 350 gallons of the total estimated spill volume of 500 gallons. This occurred during a heavy rain event with a 24-hour rainfall of 4.03 .	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		contained using sandbags, vacuumed affected surfaces and drainage inlet, disinfected surfaces using 1% bleach solution.	Post Spill CCTV		this area is on a routine maintenance schedule and has no known problems. We will CCTV to determine if further action is necessary.	Immediate: CCTV line. Future actions to be determined by CCTV observations.	11/22/2024 10:00	Immediate planned action: CCTV line. Future actions to be determined by CCTV observations.	Y	Pending CCTV investigation.	11/27/2024 14:52	None	Other (specify below)	Public land (unpaved surface)	None	None	Other (specify below)	This area is not easily accessible and is not being used by the public.	No water impacted.	0	N	N											Pending CCTV investigation.	
5S	5SSO10970	Active	Ironhouse Sanitary District CS	Ironhouse Sanitary District	897632	1.2	Certified	Louis Paul Solana	Collections Superintendent		25-NOV-24	25-NOV-24	Monthly Category 3 Spill	East Cypress Road/Marsh Creek Bridge	10/16/2024 00:25	10/16/2024 00:25	10/16/2024 22:13				Please see attached photos. File Name: Spill Area Street View File Name: Spill Area Field Photographs: Multiple Operator drove by the spill location at approximately 22:05 and everything was normal. 	37.990754	-121.695974	Force Main; Other Sewer System Structure	Spill occurred at a valve can for an 18 inch plug valve.	Not applicable	89	Please see attached field notes and photographs. File Name: Spill Area File Name: Spill Area Street View Various additional field photographs	Y	Spill reached a catch basin and was contained within the pipe and basin. approximately 3 gallons were recovered from the conveyance system which was 100% of the spill that entered the system. Please see attached photos.	3				3	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		Spill Location - -121.695974,37.990754 Affected Catch Basin - -121.696009,37.990800 	Y	37.9908	-121.696009							10/16/2024 01:06	Please see attached field notes.	Spill was discovered by a District employee who was conducting an inspection at an adjacent job site. the employee noticed wet black top and got out of the vehicle to discover sewage exfiltrating from a valve can. This employee turned off the upstream pump stations and called out on-call staff to mitigate the spill. We were fortunate that we were conducting night work and were able to recognize a problem otherwise we would have impacted Waters of the State.  Please see attached photo graphs. 	Pipe Structural Problem/Failure - Installation		Force Main		Ductile Iron		17	Sewage spilled from a valve can. Sewage slowly drained onto the asphalt and concrete area at a bridge abutment. Majority of the spill went into tan bark and soil and then made it onto a walking trail and catch basin. Staff plugged the outfall to the creek with sand bags and fully captured the wastewater from the conveyance system with our vacuum truck. Please see attached pictures of the spill.  Image: 20241016_003336.jpg Image: 20241016_003444.JPG Image: 20241016_003634.jpg Image: 20241016_003700.jpg	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Shut off affected pumps to limit spill volume. contained sewage from entering an adjacent catch basin. Approximately 3 gallons entered the conveyance system but that volume was recovered. Sand bagged the outfall of the conveyance system to avoid impacting waters of the state. Hosed off the affected asphalt and concrete captured the wash water in our vacuum truck. Disinfected and neutralized the affected soil. once the spill was mitigated staff began to dig on the forcemain to determine the cause of the spill. Image: 1.JPG Image: 3.JPG Image: 20241016_015924.jpg	Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect		The repair was completed on October 18, 2024. Although this isn't a permanent solution we expect 17 years of life. We replaced the pipeline as originally designed Mortar lined DIP 18 . We are working on a CIP project now, where the ductile iron pipe will be replaced with non corrosive material. Also a secondary CIP is being worked on to design and install a redundant forcemain so we can conduct more robust inspections of the existing forcemain. I anticipate that the final repair of the failed forcemain will be completed within one year, and the redundant forcemain to be installed within five years. Image: 20241018_193404 Image: 20241018_193444.jpg Image: 20241018_202105.jpg Image: IMG_1098.jpg		10/18/2024 04:49	District staff were conducting night inspections at an adjacent development that was installing future sewer infrastructure. Staff drove by a noticed a small amount of water on the ground and a sink hole beginning to develop. Staff turned off all upstream pump stations to stop the spill from occurring. Staff called out additional employees for support. We then diverted flow to our emergency ponds and began storing sewage in the collection system until we could determine the cause of the spill. After excavating the ground staff found that approximately 14 feet of the 18 pipe had failed due to a gas pocket. Staff gathered material, hired a contractor and scheduled a repair. The pipe failed Wednesday morning and was temporarily repaired by Friday morning at approximately 0500hrs. During this time staff called in for mutual aid from Delta Diablo and Central San, as well as, hiring contractors who used their Vacuum trucks to remove loads of sewage from affected pump-stations.		This failure was upstream from a bridge where the forcemain made an alignment change creating a gas pocket to accumulate, deteriorating the top of the pipe over time. This was a design failure approximately seventeen years ago when the new bridge was installed by the City of Oakley, no air relief valve was installed. Staff assumed that the condition was mirrored on the downstream side of the bridge and scheduled an inspection on the West side of Marsh Creek Bridge.  Obtaining permits took time but ultimately we discovered that the condition of the pipe required attention. We are scheduled to complete a second repair on December 2, 2024 and an urgent CIP has been created to correct all of the deficiencies and complete a permanent repair in the upcoming months.  Image: 20241112_200645 Image: 20241112_202436 Image: IMG_3015.JPG Image: IMG_3024.JPG	11/12/2024 21:21														Not applicable.	We re[placed the failed pipeline and we are completing a similar repair on the west side of the bridge on December 2, 2024. This action will prevent future spills until approximately 300 feet of non corrosive pipe can be installed.	We are looking into options for inspecting the forcemain for leaks and gas pockets. I have added forcemain testing to our 10 year CIP.	The repair has been completed with new ductile iron pipe and fittings. A future CIP is being planned where the alignment will change, the pipe material will be PVC/HDPE (non corrosive), and the pipe diameter will decrease from 18  back down to 14 inch to match the existing forcemain. This CIP will ensure the longevity of this forcemain and prevent failures in the future.	Please see attachments.	We have completed the repair on the East side of the bridge and are scheduled to repair the West side of the bridge on December 2, 2024. The repair on the West side will mirror the repair on the east. Please see attached photos (Forcemain Brake 10-16-24 Attachments 1-2 and 3). Also, an RFP has gone out for engineering and we will be completing the final repair within the next year. The temporary repair will las for several years, but will ultimately fail again without the installation of air relief valves and a reduction in pipe diameter.	Please see the screen shots of our SCADA system during the time of the event. The pictures will be titled in the attachment file. See titles below. Image: Cypress Grove Image: Emerson Ranch Image: Gilbert Ranch Also, there will be additional pictures/videos documenting the event.	Shut off affected pumps to limit spill volume. contained sewage from entering an adjacent catch basin. Approximately 3 gallons entered the conveyance system but that volume was recovered. Sand bagged the outfall of the conveyance system to avoid impacting waters of the state. Hosed off the affected asphalt and concrete captured the wash water in our vacuum truck. Disinfected and neutralized the affected soil. once the spill was mitigated staff began to dig on the forcemain to determine the cause of the spill.	This failure was upstream from a bridge where the forcemain made an alignment change creating a gas pocket to accumulate, deteriorating the top of the pipe over time. This was a design failure approximately seventeen years ago when the new bridge was installed by the City of Oakley, no air relief valve was installed. Staff assumed that the condition was mirrored on the downstream side of the bridge and scheduled an inspection on the West side of Marsh Creek Bridge.  Obtaining permits took time but ultimately we discovered that the condition of the pipe required attention. We are scheduled to complete a second repair on December 2, 2024 and an urgent CIP has been created to correct all of the deficiencies and complete a permanent repair in the upcoming months.  Image: 20241112_200645 Image: 20241112_202436 Image: IMG_3015.JPG Image: IMG_3024.JPG	
1	1SSO11491	Active	Santa Rosa City CS	Santa Rosa City Utilities Dept	897633	1.3	Certified	Ron Marincic	Utility System Superintendent	25-NOV-24	25-NOV-24	25-NOV-24	Category 1 Spill	Glenbrook Dr.	11/23/2024 11:20	11/23/2024 11:35	11/23/2024 11:10	11/23/2024 13:45	24-6582		Photos attached under #7.  Spill appearance point was from a gravity sewer manhole.  Paved road.	38.43676	-122.73912	Gravity Mainline; Manhole	N/A	N/A	770	Photos attached under #9.  From single appearance point, liquid traveled to gutter(161.89') and into storm drain.	Y	Photos attached under #10a.  	0	0	Event transpired during record atmospheric river event.  Flow in gutter, storm drain and surface water was exponentially more that SSO.  No solids or debris visible.  	770	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		Appearance point was gravity sewer manhole on a paved surface, then 161.89' in a paved gutter to storm drain drop inlet.  Then in SD 711.79' to Santa Rosa Creek.  	Y	38.43809	-122.73852							11/23/2024 12:27	Time/volume measurement.  City of Santa Rosa volume measurement training from manhole.  Volume was increased after witness investigation.	Customer call time, blockage cleared time and witness investigation/interviews.	Debris-wipes/Non-disposables		Gravity Mainline		Other (specify below)	AC	61	Historical atmospheric river event large flows on streel, gutter, storm drain and receiving water.  No impact.	Y	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow	Attempted to dam gutter initially.  Ran mainline and cleared blockage vacuumed site and storm drain.	Attempted to dam gutter initially.  Ran mainline and cleared blockage vacuumed site and storm drain.	Inspected Sewer Using CCTV to Determine Cause		N/A	N?A	11/23/2024 12:42	Weekend operations responded to a sewer overflow on Saturday11/23/2024 from II-27-19 MH24 at 1570 Glenbrook Dr. x Heather Dr.  First reported to the yard attendant at 11:20 am. Service truck(Jacob McDonald and Jesse Lewis) received the call at 11:25am while returning from Oakmont arrived at the spill at 11:39am. The estimated flow was 10 gpm. Jacob and Jesse attempted to dam the flow, but a downpour of rain washed out the dam. Being near the Yard, Jacob drops off Jesse at the Yard to get a cleaning truck. What appears to have been a paper blockage was broken at 12:27pm. The spill is estimated to be a total of 770 gallons to the street, gutter, storm drain, and Santa Rosa Creek The total spill was reported as unrecoverable due to rain fall at the time. SRPD, Cal OES, NCWQCB, County Environmental Health, Fish & Wildlife, and Storm Water have been reported to. Cal OES control number 24-6582 SRPD Incident # 24-3280127 After leaving a message on the caller�s cell phone She called back and l	N			Santa Rosa Creek	Stream/Creek		Historical atmospheric river event large flows on streel, gutter, storm drain and receiving water.  No impact.	None.  City Storm Water personnel notified.	Other (specify below)	None.	County Environmental Health.	0	N	N	N/A	N/A										
4	4SSO10443	Active	Whittier City CS	Whittier City	897634	1.2	Certified	Kyle Cason	Director		06-JAN-25	06-JAN-25	Category 1 Spill	Palm and Whittier Blvd, Whittier CA 90602	11/21/2024 21:30	11/21/2024 21:55	11/21/2024 21:20	11/22/2024 09:00	24-6554		MH 346 was the location where the overflow was coming out. One appearance point. 	33.98359	-118.05466	Gravity Mainline; Manhole			3375		Y	Storm drain	2020	1355		1355	2020	Drainage Conveyance System		Palm Ave and Whittier Blvd MH 346	Y	33.98359	-118.05466							11/21/2024 23:45	SSCSC/CWEA MH Overflow Gauge (MH 346 25gpm X 135 Min = 3,375gal	SSCSC/CWEA MH Overflow Gauge (MH 346 25gpm X 135 Min = 3,375gal	Debris from Construction		Gravity Mainline; Manhole		Vitrified Clay		50	Minimal impact. Sewage running down gutter into storm drain. 	N	Cleaned Up (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Crew arrived to the spill location at 21:55 and immediately began working vacuuming the sewer main line. Once sewer main line was clear, they began to jet the sewer main line and broke up the stoppage. 	Inspected Sewer Using CCTV to Determine Cause		The construction crew has been notified and will monitor debris from the construction project. 	None	11/21/2024 23:45	The visual inspection during the breaking up of the stoppage revealed sand and construction debris from a contractor working on the street.  	N			Coyote Creek	Other (specify below)	Tributary	Tributary that runs to the ocean	None	Other (specify below)	None	None	0	N	N												
2	2SSO10216	Active	West County WW District CS	West County Wastewater District	897635	1.4	Certified	Gordon Times	CSO Manager	25-NOV-24	05-DEC-24	05-DEC-24	Category 1 Spill	Ravine Way Easement	11/22/2024 13:48	11/22/2024 14:15	11/22/2024 13:20	11/22/2024 16:28	24-6570		The spill escaped from a manhole in front of 5759 Ravine Way in Richmond.	37.9449	-122.31897	Gravity Mainline			4275	The spill escaped the manhole and traveled approximately 200 yards in the gutter into a storm drain in front of 5735 Doremus Ave. in Richmond.	Y	The spill escaped the manhole and traveled approximately 200 yards in the gutter into a storm drain in front of 5735 Doremus Ave. in Richmond.	0	4275	The spill didn't directly enter the surface water. The storm drain system is several miles from the nearest body of water.	4275	0	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		The spill event destinations were from an overflowing manhole, onto the sidewalk, down the gutter and curb, into the storm drain, and eventually to Meeker Slough 4 miles away.	Y	37.9449	-122.31897	37.94455	-122.31914	37.9108	-122.33701			11/22/2024 04:54	We used the manhole visualization chart and duration of the spill to determine the volume.	The caller has a window where he could see the manhole from and he was pretty certain about when it started overflowing and our crew was on sight to witness when the overflow stopped.	Debris-General; Pipe Structural Problem/Failure - Controls; Root Intrusion; Vandalism (specify below)	This line segment has a break where roots intruded and someone threw wooden survey stakes in it.	Manhole		Vitrified Clay		62	The spill impacted the overflowing manhole, the sidewalk, the street, the storm drain, and the slough.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		We placed sandbags in front of the storm drain and began pumping from the upper manhole that was surcharged. Then we attempted to break the stoppage with the Vactor. We followed up with our rodder. Once the stoppage was broken we washed down the street and captured what was washed down.	Plan Rehabilitation or Replacement of Sewer		We're working with our Directors, Managers, Project Managers, and Engineers to schedule the replacement of this and surrounding line segments.	90 days	11/22/2024 06:14	We CCTV inspected the line and discovered the line has root intrusion and a break where roots are present. We also found 2 wooden survey stakes in the line when were attempting to break the stoppage.	N			Meeker Slough	Slough		Meeker Slough is the major water feature of the Berkeley Global Campus at Richmond Bay (BGC), a 134 acre UC Berkeley academic teaching and research field station located six miles to the northwest of the Berkeley central campus. Meeker Slough is at the outfall of a small unnamed creek draining an urbanized City of Richmond watershed. The slough drains through Western Stege Marsh, a tidal salt marsh that is habitat for endangered species and other wildlife.	N/A	Other (specify below)	We posted raw sewage warnings in the pedestrian area near the spill before washing down the sidewalk.	N/A	0	N	N												
4	4SSO10402	Active	Lakewood City CS	Lakewood City	897638	1.2	Certified	Eric Liu	Civil Engineer	25-NOV-24	05-DEC-24	05-DEC-24	Category 1 Spill	1924-0172 (4060 Watson Plaza Drive, Lakewood, CA)	11/20/2024 12:13	11/20/2024 12:48	11/20/2024 11:00				CSMD Map Sheet No. 1924 MMS 9160894 Overflowing Manhole No. 172	33.83154	-118.15416	Manhole			300	A portion of sewage from Manhole No. 172 was overflowing into the city drain at 4060 Watson Plaza Dr., Lakewood.  	Y	A portion of sewage from Manhole No. 172 was overflowing into the city drain at 4060 Watson Plaza Dr., Lakewood.  Watershed Boundaries (HUC12): Alamitos Bay Major Subwatershed: Los Cerritos Channel Major Watershed: San Gabriel River	0	200	A portion of sewage from Manhole No. 172 was overflowing into the city drain at 4060 Watson Plaza Dr., Lakewood.  Watershed Boundaries (HUC12): Alamitos Bay Major Subwatershed: Los Cerritos Channel Major Watershed: San Gabriel River	200	100	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		A portion of sewage from Manhole No. 172 was overflowing into the city drain at 4060 Watson Plaza Dr., Lakewood.  Watershed Boundaries (HUC12): Alamitos Bay Major Subwatershed: Los Cerritos Channel Major Watershed: San Gabriel River	Y	33.83196	-118.15414							11/20/2024 13:05	Visual or Eyeball Method. 	The start time is obtained from the reporting party, and the end time is determined by when the crew clears the obstruction, and the overflow stops. 	Debris-Rags; Root Intrusion		Gravity Mainline		Ductile Iron		44	A portion of sewage from Manhole No. 172 was overflowing into the city drain at 4060 Watson Plaza Dr., Lakewood.  Watershed Boundaries (HUC12): Alamitos Bay Major Subwatershed: Los Cerritos Channel Major Watershed: San Gabriel River	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow		Upon arrival at the address, Manhole 172 was actively overflowing. A containment plan was initiated and executed. Hydro jet equipment was used to clear the mainline blockage. All residual liquids and solids were vacuumed, and the area was washed down with fresh water, which was also contained and vacuumed. All required agencies were notified. 	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause	 	Inspected sewer using CCTV and added sewer to 90-day Rod Sewer-Periodic Cleaning-2 Sections. 	90-day Rod Sewer-Periodic Cleaning-2 Sections 	11/20/2024 15:01	Inspected sewer using CCTV and added sewer to 90-day Rod Sewer-Periodic Cleaning-2 Sections. 	N	 		A portion of sewage from Manhole No. 172 was overflowing into the city drain at 4060 Watson Plaza Dr., Lakewood.  Watershed Boundaries (HUC12): Alamitos Bay Major Subwatershed: Los Cerritos Channel Major Watershed: San Gabriel River	Other (specify below)	A portion of sewage from Manhole No. 172 was overflowing into the city drain at 4060 Watson Plaza Dr., Lakewood.  Watershed Boundaries (HUC12): Alamitos Bay Major Subwatershed: Los Cerritos Channel Major Watershed: San Gabriel River	A portion of sewage from Manhole No. 172 was overflowing into the city drain at 4060 Watson Plaza Dr., Lakewood.  Watershed Boundaries (HUC12): Alamitos Bay Major Subwatershed: Los Cerritos Channel Major Watershed: San Gabriel River	No impacts.	Other (specify below)	No Impact.	N/A	0	N	N											 	
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	897658	1.2	Amended	Daniel Whitlock	Manager	25-NOV-24	07-DEC-24	07-DEC-24	Category 2 Spill	Crescent and Alemany	11/22/2024 14:20	11/22/2024 14:35	11/22/2024 16:25				Overflow at Alemany and Crescent from manhole N-343230.	37.73395	-122.41243	Gravity Mainline; Manhole			830000	Overflow at Alemany and Crescent from manhole N-343230.	N						830000	Paved Surface; Street/Curb and Gutter (2 3)		Intersection of Alemany and Crescent from manhole N-343230. Although when crews arrived there was no evidence of spill.	Y	37.7347	-122.41183							11/22/2024 16:45	H&H Hydraulics	H&H Hydraulics ran model using asset N-217313.  We originally got alerts that the area was spilling around 14:00 and sent field workers to the location. But there was an issue with the timing of when the automatic emails were sent to us which is why we believe the start time of the spill was earlier than what is reported and why field workers were on site before the sensors showed the spill occurring.	Surcharged Pipe (Combined Collection System Only)	Heavy storm caused rain to exceed capacity of sewer	Gravity Mainline		Vitrified Clay		184	None. Signs were posted and roads remained open.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below)	Returned all spill to combined sewer	Signage posted on barricades so pedestrians could avoid contact of spill. Upon arrival of spill location, there was no evidence of a spill.	Other (specify below)	N/A Spill was caused by rain exceeding capacity.	N/A Spill was caused by rain exceeding capacity.	11/22/2024 16:25: Spill starts 11/22/2024 16:45: Spill Ends 11/22/2024: 14:45: Cleanup starts 11/23/2024 10:47: Cleanup ends	12/05/2024 13:40	Heavy storm caused rain to exceed capacity of sewer.	N												N													
8	8SSO10574	Active	Garden Grove City CS	Garden Grove Sanitary District	897660	1.1	Certified	William E. Murray	Public Works Director		16-DEC-24	16-DEC-24	Monthly Category 3 Spill	12125 Brookhurst	11/21/2024 15:13	11/21/2024 15:25	11/21/2024 15:00				Multiple appearance points. District manhole #9961 was closest to the failure point. District manhole #9960 also overflowed and this is where the spill was first noticed. A private sewer clean out in front of 12196 Brookhurst also overflowed. 	33.787028	-117.958586	Lateral Clean Out (Private); Manhole		Private cleanout and two District Manholes overflowed.	963	District manhole #9960 was overflowing into the curb and gutter and flowed towards catch basin inlet 3675. A private cleanout at 12196 Brookhurst was overflowing into the curb and gutter and flowed towards catch basin inlet 3687. District manhole #9961 overflowed during jetting operations due to the pressure in the line. It was contained in the curb and gutter. There were no nearby catch basin inlets. 	Y	Both catch basin inlets drain into storm drain #763. It is a 31 inch corrugated metal pipe that flows south towards Bixby Ave. The storm drain flows northwest and ties into the Anaheim-Barber City Channel on Magnolia and Orangewood.	14				963	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		District manhole #9961 overflowed into the curb and gutter and was fully contained with a dirt berm. District manhole #9960 overflowed into the curb and gutter and flowed towards inlet 3679. The private cleanout overflowed and flowed towards inlet 3675. 	Y	33.786957	-117.958553	33.786095	-117.95851	33.78563	-117.95854			11/21/2024 16:17	The overflow from the private clean out was calculated using a triangle flow calculation for curb and gutters. Width .42 ft x Depth .125 ft x .5 = .02625 square ft x Velocity 1 ft/sec = .02625 cubic ft/sec x 449 to convert to gal/min = 11.78 gal/min x 77 minutes of spillage = 907.54 gal, rounded up to 908 gal. The overflow from manhole 9960 was calculated using a ponded area calculation. Width 20 ft x Length 40 ft x Depth .0013 ft for asphalt = 1.04 cubic ft x 7.48 = 7.8 gal, rounded up to 8 gal. The overflow in the catch basin inlets was calculated using a ponded area calculation. Length 3 ft x Width 4 ft x Depth .08 ft = .96 cubic ft x 7.48 = 7.18 gal x 2 inlets = 14.36 gal, rounded to 14 gal. The overflow from manhole 9961 was calculated using a ponded area calculation, Length 35 ft x Width 2 ft x Depth .125 ft x .5 = 4.375 cubic ft x 7.48 = 32.725 gal, rounded up to 33 gal. 908 gal + 8 gal + 14 gal + 33 gal = 963 gal. 	City inspector, Basil Murad, received a call from a contractor working in the City. He noticed District manhole #9960 overflowing into the curb and gutter. He took a picture and immediately notified Basil. He sent the picture at 3:10 PM. Basil immediately notified the District and crews responded. The contractor noticed the overflow at 3:10 PM. The spill had to have started before the call came in. The District has determined the start time to be 3:00 PM	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		71	Crews were able to recover all of the spill. The approximately 14 gallons of overflow that entered the catch basins was captured and recovered. The storm drain was inspected and District crews confirmed that no sewage had entered the storm drain downstream. The spill area was washed and vacuumed. Crews decanted all waste and wash water into the sewer system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Crews responded to a District manhole overflow at 12125 Brookhurst Street. A private clean out and two District manholes overflowed into the curb and gutter. Crews placed rubber mats and sandbags over two catch basin inlets to prevent sewage from entering the storm drain system. Approximately 14 gallons entered the inlets before the mats could be set down. The overflow was contained in the inlets by leaves, debris, and screens. Crews checked the downstream storm drain to make sure no overflow entered the storm drain system. Crews set up a combination truck in the curb and gutter and began to vacuum up the overflow. A second combination truck began to hydro jet the line and cleared a grease blockage at 4:17 PM restoring flow to normal. The spill area was then washed and vacuumed. Both catch basin inlets were washed and vacuumed. Crews decanted all waste and wash water into the sewer system. 	Post Spill CCTV		The line was hydro jetted on 2024-11-22 to make sure it was as clear as possible. Crews inspected the line on 2024-11-25 to assess the condition of the pipe. The CCTV inspection did not discover any major structural defects in the line. The District has determined that the cause of the blockage was from FOG buildup coming from surrounding businesses. This line is scheduled to be cleaned and video inspected during the District's next phase of condition assessment which is scheduled to be performed in the next coming year. The data will be reviewed and our Water Engineering Department will determine if it needs to be added to the list of capital improvement projects. It might need to be part of a repair or lining project. It may just need to be added to the District's hot spot list for enhanced cleaning to prevent future spills. 		11/25/2024 11:15	The line was hydro jetted on 2024-11-22 to make sure it was as clear as possible. Crews video inspected the line using CCTV equipment on 2024-11-25. This was done to assess the condition of the pipe and to determine the cause of the spill. The CCTV inspection did not discover any major structural defects in the line. The District has determined that the cause of the blockage was from FOG buildup coming from surrounding businesses. Crews noticed heavy amounts of grease in the pipe as the blockage cleared. The inspection showed heavy grease buildup coming from private laterals near surrounding restaurants. The grease flowed into the District line and caused a blockage and subsequent spill. Since FOG was the cause of the blockage, the spill information will be given to the Garden Grove Environmental Management Team. They will enforce the City's FOG ordinance with surrounding businesses. 		This line is scheduled to be cleaned and inspected during the next phase of the District's condition assessment program. It will be assessed and any necessary corrective actions will be noted and reported to the District. 	11/26/2024 11:16														The Garden Grove Environmental Management Team will enforce the City's FOG ordinance with surrounding businesses and restaurants.	The CCTV inspection showed no major structural defects in the pipe. This line will be evaluated as part of an upcoming condition assessment project. The project is scheduled for the upcoming year and our Water Engineering department will determine what modifications need to be made to prevent repeated spill occurrences at this location.	No adjustments in schedule/method of preventive maintenance are called for at this time. However, this line is scheduled to be reviewed during the next phase of condition assessment in the next year. If adjustment is called for, the District will comply with the assessment.	No rehabilitation or replacement is currently planned. However, this line is scheduled to be reviewed during the next phase of condition assessment in the next year. If rehabilitation or replacement is called for, the District will add it as part of its capital improvement program.	No repair or replacement is currently planned. However, this line is scheduled to be reviewed during the next phase of condition assessment in the next year. If repair or replacement is called for, the District will add it as part of its capital improvement program.	This line is scheduled to be cleaned and inspected during the next phase of the District's condition assessment program. It will be assessed and any necessary corrective actions will be noted and reported to the District. 	No modifications have been made at this time. 	No modifications to response activities are called for at this time.	This line is scheduled to be cleaned and inspected during the next phase of the District's condition assessment program. It will be assessed and any necessary corrective actions will be noted and reported to the District. 	
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	897664	1.2	Certified	Daniel Whitlock	Manager	25-NOV-24	07-DEC-24	07-DEC-24	Category 2 Spill	2106 Folsom St.	11/22/2024 13:40	11/22/2024 14:15	11/22/2024 13:50				Flooding on 17th and Folsom due to storm.	37.76351	-122.41517	Gravity Mainline; Manhole			16000	Spill contained to 17th and Folsom with help of flood barriers. Flooding got into sideyard of 2106 Folsom St.	N						16000	Paved Surface; Street/Curb and Gutter (2 3)		Flooding at intersection of 17th and Folsom from manhole N-18130 and catch basins N-62030 and N-70007.	Y	37.76351	-122.41517							11/22/2024 13:55	H&H hydraulics	H&H Hydraulics ran the model using asset N-18130.	Surcharged Pipe (Combined Collection System Only)	Rainfall exceeded capacity of the sewer.	Gravity Mainline	Rainfall exceeded capacity of the sewer.	Vitrified Clay		23	Flooding at intersection of 17th and Folsom. Flood barriers were put in place and signage was posted during cleanup and while barriers were up. Flood got into sideyard of 2107 Folsom.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified	Returned all spill to combined sewer.	Cleaned and washed down area of spill. Cleaned catch basins where spill emanated from, pumped out side yard at 2106 Folsom St.	Other (specify below)	N/A Rainfall exceeded capacity	N/A Rainfall exceeded capacity.	11/22/2024 13:50 - Spill starts 11/22/2024 13:55 - Spill Stops 11/22/2024 15:00 - Clean Up Begins 11/23/2024 10:30 - Clean Up Ends	12/05/2024 13:35	Heavy storm on 11/22 caused sewer to exceed capacity.	N												N													
8	8SSO10543	Active	Beaumont City CS	Beaumont City	897436	2.1	Certified	Jerome Moledor	Wastewater collection supervisor	13-NOV-24	25-NOV-24	25-NOV-24	Category 1 Spill	Olivewood lift station	11/10/2024 10:25	11/10/2024 10:52	11/10/2024 07:00	11/10/2024 12:45	24-6335	21-NOV-24	Spill appearance point was two Manholes next to a lift station.	33.94044	-117.03227	Manhole		second manhole next to main appearance point	38250	The spill went from appearance point into first concrete partially filled storm basin. Then to second partially filled storm basin. The second basin has a outfall to a dry non-flowing wash bed.	Y	The spill went from appearance point into first concert partially filled storm basin. Then to second partially filled storm basin. The second basin has a outfall to a dry non-flowing wash bed.	20000	0	Spill ended up in a dry non-flowing wash bed, after being deluded through two partially filled storm basins.	18250	20000	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Unpaved Surface		Spill went from two nearby appearance points and joined together into and concrete lined storm catch basin. From this basin it went to a second storm catch basin. From the second basin it went to a storm outfall into a dry wash. The spill ended aprox 760' into the dry wash.   	Y	33.94015	-117.03258	33.94037	-117.03355	33.94072	-117.03528			11/10/2024 11:21	Spill volume estimations were made by finding that there was a 4hr and 15min gap between the last High High level alarm and the time city crew got the station running. Using the 4hr and 15min timeline multiplied by the spill rate of 150gpm(on-site visual comparison with manhole overflow simulation pictures) gives a spill of (255 x 150) 38,250gals.	Spill Start and end time estimations were made by finding that there was a 4hr and 15min gap between the last High High level alarm and the time city crew got the station running. 	Other (specify below); Pump Station Failure - Controls	This lift station is not maintained or operated by the City of Beaumont but by RSI Communities-California LLC (dba Taylor Morrison). In the opinion of Taylor Morrisons pump company the problem was that pump 3 had a fault that needed to be cleared and the low-level float may have been stuck making it so pumps 1 and 2 would not run.	Pump Station - Controls		Other (specify below)	Sewer lift station.	6	The impact of the spill was on a non-travel easement road to a concrete lined storm water basin then to a second storm water basin (both storm basin are in a locked and fenced off area and both storm basins had water in them before the spill.  Finally, the spill went through an outfall to a dry wash. The spill made it approximately 760� down the dry wash.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Please see attached spill report	Please see attached spill report	Other (specify below)	Please see attached spill report	Please see attached spill report	Please see attached spill report	11/13/2024 16:30	Please see attached spill report	Y	Looking into why the call out system was removed and following up on NOV sent to Taylor Morrison	12/06/2024 13:16	Noble Creek	Wash		None, dry wash	None, dry wash	Other (specify below)	None, locked and fenced off area.	None, no water body	0	N	N											Looking into why the call out system was removed and following up on NOV sent to Taylor Morrison	
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	897665	1.2	Certified	Daniel Whitlock	Manager	25-NOV-24	07-DEC-24	07-DEC-24	Category 2 Spill	Marina Blvd	11/22/2024 13:54	11/22/2024 14:39	11/22/2024 13:35				Marina Blvd between Divisadero and Scott St. flooded due to heavy storm and sewers being at capacity. Spill came from manholes, catch basins, and vents. 	37.80585	-122.44133	Gravity Mainline; Manhole			1133000	Between Divisadero and Scott St. on Marina Blvd.	N						1133000	Other (specify below); Paved Surface; Street/Curb and Gutter (2 3)	Catch basins leading to combined system.	Sewer flooded from manholes: N-25711 N-11198 N-11084 N-418785 N-25704	Y	37.80557	-122.44401	37.80578	-122.44229	37.80551	-122.44478	37.8057	-122.44308	11/22/2024 16:40	H & H Hydraulics	Model used the following manholes.  N-25711 N-11198 N-11084 N-418785 N-25704   	Surcharged Pipe (Combined Collection System Only)	rainfall exceeded capacity due to storm.	Gravity Mainline		Other (specify below)	Brick	110	Roads were flooded. Signs posted.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified	Returned all spill back to the combined system.	Disinfected area of spill after rainfall subsided and water went back into the combined system.	Other (specify below)	Rainfall exceeded design.	Rainfall exceeded design.	11/22/2024 13:35 - Spill started 11/22/2024 16:40 -Spill stopped 11/23/2024 - 8:00 Clean Up started 11/23/2024 -19:30  Clean up ended	12/06/2024 09:04	Rainfall exceeded sewer design due to heavy storm.	N												N													
5S	5SSO10893	Active	City Of Folsom CS	Folsom City - Environmental & Water Resources Dept	897707	1.5	Certified	Marcus Yasutake	Environmental & Water Resources Director	26-NOV-24	06-DEC-24	06-DEC-24	Category 1 Spill	1600 Canyon Terrace Lane	11/23/2024 08:31	11/23/2024 09:28	11/22/2024 19:00	11/23/2024 13:15	24-6581		The spill discharged from a clean out near building 909 at an apartment complex. The system failed in the gravity mainline near manholes B03-1-49470 and B03-1-49380	38.69563	-121.19218	Lateral Clean Out (Private)	n/a	n/a	45	The spill traveled onto an unpaved landscape, over a paved surface and back down to an unpaved surface. The spill then traveled into a drain inlet with approximately 10 gallons entering the storm system which is tributary to the South Branch of Linda Creek.	Y	A drain inlet located in an unpaved area of the apartment complex. Which is a tributary to the South Branch of Linda Creek. The spill then traveled an unknown distance due to heavy rain.	0	10	The discharge point, if any, is unknown so no photos were taken.	10	35	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Other (specify below); Paved Surface; Unpaved Surface	Per discussion with Public Works Storm Drain Division, the storm drain inlet/culvert and grassy swale that the spill reached is tributary to the south branch of Linda Creek.	The spill discharged from a private cleanout near building 909 at 1600 Canyon Terrace (38.6956,-121.19218). The system failed due to a blockage in the City gravity mainline near manholes B03-1-49470 and B03-1-49380. The blockage caused the private lateral to spill. The spill traveled onto unpaved landscape, over a paved surface and back down to an unpaved surface and into a grassy swale. After the spill cleanup was complete, City Staff went back to the site at 12:56pm on 11/23/2024 and discovered a buried storm drain DI (38.695,-121.192425) where the spill had traversed.  Upon discovery of the storm drain DI, the spill was determined to be a Category 1 Spill and CalOES was notified at 1:15pm.  The Cal OES Incident Report Number is 24-6581.  It was estimated that 10 gallons traveled into the drain inlet, entering the storm drain system, which is tributary to the South Branch of Linda Creek (38.6944861,-121.204814). 	Y	38.6956	-121.19218	38.695	-121.192425	38.6944861	-121.204814			11/23/2024 10:33	The spill volume was estimated using the eyeball estimation method as well as training, experience, and discussing the spill with the on-site apartment maintenance crew/witnesses. The spill was estimated to be 45 gallons total with 35 gallons recovered. It was estimated that 10 gallons reached the drain inlet with 0 gallons recovered from the DI.	Spoke to witnesses to determine the closest estimated start time. Through interviewing the on-site apartment maintenance staff, it was discovered that the spill initially started burping sewage off and on at 7:00pm on 11/22/2024.  City Staff was told from the apartment plumber that the cleanout had spilled and stopped spilling before he arrived on 11/22/2024.  The end time was determined by when the staff had set up suction at the downstream manhole.	Debris-General		Gravity Mainline		Vitrified Clay		40	The impact of the spill was minimal. The spill did enter a storm drain system that flows to a waterway, which is a tributary to the South Branch of Linda Creek. The volume, if any to reach the waterway is unknown, but estimated to be no more than 10 gallons.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Using the vacuum suction of the Vac Truck, City Staff was able to lessen the volume of the spill.	Staff received a call from Folsom PD at 8:31am on 11/23/2024 regarding a sewer spill. Staff arrived at 9:28am and noticed a cleanout at an apartment building was spilling and both manholes were surcharged. Staff set up a VacTruck at manhole B03-1-49470 at 10:33am and started suction to mitigate spill. At this time a second VacTruck arrived. Using the main flushing line at manhole B03-1-49380 the unknown blockage in the City's gravity mainline was cleared. At this point the vendor from the apartments began the cleanup process. Using spray disinfectant, shovels and garbage bags the contaminated area was cleaned. Upon a visual inspection it was determined that the spill reached a DI that flows to a tributary to the South Branch of Linda Creek. The spill was estimated at 45 gallons, 10 reaching the storm drain. The remaining 35 gallons were recovered by the cleanup crew. No samples were taken. The volume, if any to reach the waterway is unknown but estimated to be no more than 10 gallons. 	Inspected Sewer Using CCTV to Determine Cause	No visible defects were found.	The mainline was CCTV on11-25-24, with no problems found.	N/A	11/23/2024 13:50	The cause of the spill is unknown but believed to be general debris.	N	N/A		Tributary to South Branch of Linda Creek	Stream/Creek	N/A	Tributary to the South Branch of Linda Creek	Due to the location of the spill and not observing where the spill discharged into Linda Creek, the City was not able to observe any impacts to aquatic life. The spill did enter a storm drain system that flows to a waterway, which is tributary to the South Branch of the Linda Creek. The volume, if any to reach the waterway is unknown but estimated to be no more than 10 gallons.	Other (specify below)	The impacts to public access were minimal. The spill did enter a storm drain system that flows to a waterway, which is tributary to the South Branch of the Linda Creek. The volume, if any to reach the waterway is unknown but estimated to be no more than 10 gallons.	None	0	N	N	The volume, if any to reach the waterway is unknown but estimated to be no more than 10 gallons. Per Table E2-1 of the WDR Order 2022-0103-DWQ, sampling is required within 18 hours for spills of 50,000 gallons or greater to reach surface waters.	N/A									N/A	
5S	5SSO10958	Active	Grass Valley City CS	Grass Valley City	897709	1.1	Certified	Bjorn Jones	City Engineer		26-NOV-24	26-NOV-24	Monthly Category 3 Spill	201 Cypress Hill Dr	11/22/2024 09:00	11/22/2024 09:00	11/22/2024 08:30				Spill from manhole due to clog in mainline. Spill entered paved surface, gutter, and storm drain, ultimately reaching public land.	39.22731	-121.05899	Manhole			500	Spill from manhole due to clog in mainline. Spill entered paved surface, gutter, and storm drain, ultimately reaching public land.	Y	Storm drain DI in gutter of street. 	0				350	Drainage Conveyance System; Street/Curb and Gutter (2 3); Unpaved Surface		Spill from manhole due to clog in mainline. Spill entered paved surface, gutter, and storm drain, ultimately reaching public land.	Y	39.22731	-121.05899							11/22/2024 10:00	Visual observation	Visual observation	Debris-General		Gravity Mainline		Vitrified Clay		60	spilled from manhole into gutter, storm drain, and ultimately to public land. Crew immediately contained and mitigated the spill, recovering 350 gallons of the total estimated spill volume of 500 gallons. This occurred during a heavy rain event with a 24-hour rainfall of 4.03 .	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		contained using sandbags, vacuumed affected surfaces and drainage inlet, disinfected surfaces using 1% bleach solution.	Post Spill CCTV		this area is on a routine maintenance schedule and has no known problems. We will CCTV to determine if further action is necessary.		11/26/2024 08:00	CCTV showed evidence of grease buildup, line has been cleaned.		NA	11/25/2024 14:00														NA	NA	NA	NA	NA	NA	NA	NA	NA	
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	897713	1.3	Certified	Daniel Whitlock	Manager	26-NOV-24	07-DEC-24	07-DEC-24	Category 2 Spill	Custer and Quint	11/22/2024 13:22	11/22/2024 13:50	11/22/2024 12:10				Overflow at intersection of Custer and Quint due to heavy storm causing rain to exceed capacity of the sewer.	37.74528	-122.38922	Manhole			1938000	Intersection of Custer and Quint.	N						1938000	Paved Surface; Street/Curb and Gutter (2 3)		Spill contained to intersection of Custer and Quint.	Y	37.74528	-122.38922							11/22/2024 16:55	H&H Hydraulics	H&H Hydraulics used asset N-31425 to run the model	Surcharged Pipe (Combined Collection System Only)	Rain exceeded capacity of sewer due to heavy storm.	Gravity Mainline		Concrete		43	Roads were not closed. Signage posted while cleaning.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below)	Returned all spill to combined sewer system.	Cleaned and disinfected area after water receded back into the combined system.	Other (specify below)	N/A Rainfall exceeded capacity	N/A Rainfall exceeded capacity.	11/22/2024 12:10 - Spill starts 11/22/2024 18:55 Spill ends 11/22/2024 16:10 Clean Up begins 11/23/2024 1:15 Clean Up ends	12/06/2024 09:43	Heavy storm caused rain to exceed capacity of the sewer from manhole N-31425.	N												N													
5R	5SSO10791	Active	Burney CS	Burney WD	897715	1.5	Certified	David Zevely	District Manager		27-NOV-24	27-NOV-24	Monthly Category 3 Spill	20635 roff way manhole	10/07/2024 10:45	10/07/2024 11:02	10/07/2024 10:45				manhole at turn 	40.8881	-121.65912	Manhole			150	Manhole at turn	N		140				140	Groundwater Infiltration Basin or Facility		Infiltration Basin across the street		40.88783	-121.65868							10/07/2024 11:49	Educated guess	Time on clock	Debris-General		Gravity Mainline		Vitrified Clay		55	Ran down curb ,gutter	N	Cleaned Up (specify below)		Clean up using vacuum equipment	Added Sewer to Preventive Maintenance Program		Inspect weekly		10/07/2024 11:49	Solids build up in lower sewer main   11/26/2024 mskelly 9:25 am		yes	10/07/2024 11:49														weekly inspections	Jetting weekly	yes	no	Yes	No	Yes	Jetting , Vacuum spill 	yes	
3	3SSO11524	Active	Monterey City CS	Monterey City	897717	1.3	Certified	Andrew Easterling	City Engineer	26-NOV-24	10-DEC-24	10-DEC-24	Category 1 Spill	Mesa Liftstation	11/25/2024 20:00	11/25/2024 22:00	11/25/2024 20:00	11/26/2024 09:36	24-6623		Force main downstream from Mesa liftstation struck by construction crews performing emergency repair to a broken 16  water main in the intersection of Freemont and Camino Aguajito Rd.  The gravity main is approximately 4' deep and crosses diagonally over the 16  water main which is approximately 6' deep.	36.59499	-121.88876	Gravity Mainline			2223	Emergency crews responding to a Cal Am water main break struck sewer main while excavating the broken water main.  Water and wastewater filled 6' deep utility trench and sewage and spilled into surrounding intersection, storm drain, and lake at the intersection of Fremont and Camino El Estero.  Most of the water within the trench was able to flow gravity down the exposed sewer main.  SCADA data shows 2223 gallons of sewer spilled during the time the sewer was exposed.  It is estimated that 1/4 of that spilled into the surrounding intersection and was unrecoverable.	Y	Catchbasin E05-C7 located at Fremont and Camino El Estero has direct discharge to Lake El Estero.	0	555	The outlet pipe coming from E05-C7 has direct discharge to Lake El Estero.	555	1668	Drainage Conveyance System that discharges to surface water; Surface Water		It is assumed that 75% of the sewage that spilled was contained in the 6' deep excavated trench and drained through the exposed sewer outlet pipe.  The 25% that spilled was mixed with potable water from the 16  water main break that surcharged the trench, or was pumped out during dewatering operations.	Y	36.59518	-121.88901							11/25/2024 20:00	Monterey One Water (M1W), the regional sewer collection agency operates Mesa Liftstation, and was able to provide SCADA data between the time of 8pm when the sewer main was struck, and 10 pm when M1W was able to lock out the pumpstation and use a pumper truck to collect.  During that time the pump ran for 19.5 minutes at 114 gpm totaling 2223 gallons.  It is estimated that 75% (1668 gallons) of that volume was contained in the trench and was able to flow down the open gravity sewer main.  It is estimated that 25% (555 gallons) overwhelmed the trench or was pumped out during dewatering operations and was unrecoverable.	West Valley Construction, emergency contract crew for Cal Am Water company notified the City that the sewer main was struck around 8:30pm on Monday 11/25/24.  It is estimated the actual break occurred at 8pm, and spilled as the pumpstation cycled on and off until 10pm when M1W was able to mobilize and lock out liftstation.  Cel phone records of notification and interviews with stand by crews that responded provided the approximate time frames.	Damage by Others Not Related to Collection System Construction/Maintenance		Gravity Mainline; Other (specify below)	Initial report described the force main being struck, but the portion of sewer main was gravity, downstream of the force main.	Vitrified Clay		100	The portion of sewer that spilled was highly diluted from the water main break, which was on the order of millions of gallons.  A post construction inspection was conducted on 12/2/24 and there was no visible signs of sewage (paper or solids) and no odor of sewage.  Water in the lake at the outfall was tested for the presence of Ammonia, and there was no detectable presence. There was no visible turbidity or plume in the lake at the outfall.	N	Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Most of the initial spill was contained within the utility trench and was able to flow gravity through the exposed sewer main.  The liftstation operator was able to lock out the pumpstation by 10pm to allow emergency crews to repair the sewer main, and continue repairs to the potable water line.  CalOES was notified the following day when City Environmental was notified that the spill entered the lake.	Repaired Facilities or Replaced Defect	The sewer main was repaired by West-Valley Construction, the emergency contract crew for Cal Am Water.	The spill was caused by an unforeseen emergency water main break.  There is no corrective action plan to prevent a reoccurrence at this time.	None at this time.	11/26/2024 07:00	Photos and texts taken by first responders were used to establish a timeline, and interviews with all involved after the event were used to provide detail.  SCADA data during the time of the spill was used to establish volume of the spill.	N			Lake El Estero	Lake		Lake El Estero covers approximately 18 acres and collects runoff from approximately 3.78 square miles of urban, suburban, and open space area.  	No observable impacts to aquatic life.  There was no presence of sick or dying animals upon post inspection, and no measurable indicator of ammonia in the water.	Other (specify below)	Freemont Street was closed due to the water main break.  A portion of the street remains closed until other impacted utilities can complete repairs to their infrastructure (AT&T).  No restrictions to lake access were made.	N/A	0	N	Y	Field samples for Ammonia were taken at the discharge point at the lake following the spill.	Ammonia field sample did not indicate a presence of ammonia										
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	897724	1.3	Certified	Daniel Whitlock	Manager	26-NOV-24	20-DEC-24	20-DEC-24	Category 2 Spill	Evans Ave. and Toland St.	11/22/2024 20:30	11/22/2024 21:30	11/22/2024 12:15				Flooding at intersection of Toland and Evans at manhole N-343007 due to sewer reaching capacity from heavy storm.	37.74629	-122.39429	Manhole			387000	Intersection of Toland and Evans.	N						387000	Other (specify below); Paved Surface; Street/Curb and Gutter (2 3)	Combined Storm drain.	Intersection of Evans and Toland from manhole N-335234.	Y	37.74629	-122.39429							11/22/2024 17:00	H&H Hydraulics	H&H Hydraulics used assets N-335323 and N-335324 in the model.	Surcharged Pipe (Combined Collection System Only)	Rainfall from storm exceeded sewer capacity.	Gravity Mainline		Vitrified Clay		36	Flooding at intersection of Evans and Toland. Signs were posted that there is sewage present. 	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below)	Returned all spill to combined sewer.	Cleaned and washed down area once the water receded back into the combined system. Cleaned catch basins N-65088 and N-65087.	Other (specify below)	N/A Spill caused by rainfall exceeding sewer design.	N/A Spill caused by rainfall exceeding sewer design.	11/22/2024 20:00: Spill starts 11/22/2024: Spill ends 11/22/2024 23:30: Spill cleanup begins 11/23/2024 02:30: Spill cleanup ends 	12/12/2024 07:59	Heavy storms called rainfall to exceed sewer capacity.	N												N													
2	2SSO10105	Active	Central Contra Costa Sd CS	Central Contra Costa Sanitary District	897725	1.2	Certified	Paul Seitz	Collection System Division Manager	26-NOV-24	09-DEC-24	09-DEC-24	Category 1 Spill	1291 Clover Ln Walnut Creek	11/25/2024 11:34	11/25/2024 11:46	11/23/2024 08:00	11/25/2024 13:04	24-6603		Spill discharged from 75A3-M17	37.89279	-122.07031	Manhole			11819	Spilled from manhole and traveled down a creek bank and into Las Trampas Creek	N				Spill discharged from 75A3-M17	11819	0	Other (specify below)	Flowing creek	Spill discharged from a manhole that is ajacent to a creek. The spill traveled down the creek embankment and into the flowing water.	Y	37.89279	-122.07031							11/25/2024 12:05	Please see attached calculation sheet.	We interviewed all surrounding neighbors to gather information to determine our estimated spill start time. The stop time was determined by the time the responding crew relieved the plug in our main. 	Debris-Rags		Gravity Mainline		Vitrified Clay		76	The creek the spill discharged to had severe flow and we were unable to capture any of the spill. A third party biologist was hired to inspect the creek to check for any negative impact. None was reported. 	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow		Our responding crew arrived on the scene and relived the plug in 12 minutes. The creek the spill discharged to had severe flow and we were unable to capture any of the spill.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		We inspected the mainline with CCTV and incresed the cleaning frequancy.	This mainline will be cleaned on a more frequent basis.	11/25/2024 12:05	CCTV findings show a small sag at the approximate footage of plug where debris could have built up. 	N			Las Trampas Creek	Stream/Creek		Creek	None, verified by an independent biologist.	Other (specify below)	None	N/A	0	N	Y	Upstream, site and downstream	CBOD, dissolved oxygen, PH, total residual chlorine, ammonia, COD, enterococcus, total/fecal coliform, e-coli										
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	897726	1.2	Certified	John J. Hough	San Dist. Superintendent	26-NOV-24	10-DEC-24	10-DEC-24	Category 1 Spill	352361	11/25/2024 16:23	11/25/2024 17:18	11/25/2024 15:00				See attached Spill Map	38.6482	-121.2509	Lateral Clean Out (Public)			95	See attached Spill Map	Y	See attached Spill Map	0	0	See attached Spill Map	93	79	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See Attached Spill map with Photos.	Y	38.6482	-121.2509	38.6481	-121.2512	38.6481	-121.2514	38.6445	-121.2502	11/25/2024 17:18	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Root Intrusion		Lower Lateral		Acrylonitr. Butadiene Styrene (ABS)	N/A	43	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		See Attached Description of Spill Event	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	See Attached Description of Spill Event.	SacSewer will inspect the lower lateral with CCTV in 12 months to determine an appropriate preventative maintenance cleaning schedule.	SacSewer inspected the lower lateral with CCTV on November 25, 2024. Based on the findings, SacSewer will inspect the lower lateral with CCTV in 12 months to determine an appropriate preventative maintenance cleaning schedule.	11/26/2024 09:00	See Attached Description of Spill Event.	N			Unnamed Creek Tributary to the American River	Stream/Creek		creek tributary to the American River	No observed impacts.	Other (specify below)	No impact	N/A	0	N	N												
1	1SSO10067	Active	SCWA Russian River CSD CS	Sonoma County Water Agency (SCWA)	897727	1.3	Certified	Daniel Colvin	WA Coordinator	26-NOV-24	04-DEC-24	04-DEC-24	Category 1 Spill	RRCSD_M17-23	11/23/2024 09:20	11/23/2024 09:20	11/23/2024 09:20	11/23/2024 09:51	24-6580		RRCSD_M17-23 Manhole outside lift station	38.49289	-123.01326	Manhole			3565	Spill flowed across street and a driveway to the flood waters of the Russian River.	N				see attachment	3315	250	Surface Water		Spill flowed across street and a driveway to the flood waters of the Russian River.	Y	38.49272	-123.01314							11/23/2024 13:15	The spill volume was estimated using the DKF  Duration and flow Rate Using Manhole Overflow Rate Tables - Manhole Cover in Place 	Staff were on site to witness the start and stop of the spill.	Flow Exceeded Capacity (Separate Collection System Only)		Manhole		Acrylonitr. Butadiene Styrene (ABS)		40	Due to heavy rains and flooding in the immediate area there was not a large impact. 	Y	Cleaned Up (specify below); Returned Portion of Spill to Sanitary Sewer System		Cleaned up the area of the spill and recovered about 250 gallons that had ponded up in the street around the manhole. 	Other (specify below)	The RRCSD replaced approximately 900 feet of force main and with NPDES permit changes, permitted a third pump to be placed into service which allowed wet well levels to drop and cease flow out of the manhole.	Programming has been updated to allow the third pump to turn on automatically if two pumps are not keeping up with flow.� This was previously limited in the RRCSD�s last NPDES permit.�	Complete	11/23/2024 14:15	The RRCSD replaced approximately 900 feet of force main and with NPDES permit changes, permitted a third pump to be placed into service which allowed wet well levels to drop and cease flow out of the manhole. Programming has been updated to allow the third pump to turn on automatically if two pumps are not keeping up with flow.� This was previously limited in the RRCSD�s last NPDES permit.�	N			Russian River	River		The Russian River was in flood stage and flowing at approximately 42,000 cfs at the time and location of the spill.	none	Other (specify below)	Signs placed around immediate spill area. 	County Department of Public Health	0	N	N												
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	897731	1.2	Certified	Daniel Whitlock	Manager	26-NOV-24	07-DEC-24	07-DEC-24	Category 2 Spill	Marin and Indiana St.	11/22/2024 16:00	11/22/2024 17:30	11/22/2024 12:10				Flooding at intersection of Marin and Indiana St. from catch basins N-51468 and N-49519 and N-72061 from heavy rains causing sewer to exceed capacity.	37.74888	-122.39036	Manhole; Other (specify below)	Catch Basin		2984000	Intersection of Marin and Indiana St.	N						2984000	Other (specify below); Paved Surface; Street/Curb and Gutter (2 3)	Combined system catch basin	Flooding at intersection of Marin and Indiana from manhole N-72061 due to heavy storms. Flood reached onto sidewalk.	Y	37.74888	-122.39036							11/23/2024 01:20	H&H Hydraulics	H&H Hydraulics used asset N-72061 to run model.	Surcharged Pipe (Combined Collection System Only)	Rainfall from heavy storm exceeded capacity of the sewer.	Gravity Mainline		Concrete		30	Flooding at intersection of Marin and Indiana. Signage posted. 	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below)	Returned all spill to combined sewer system.	Washed down and disinfected spill area. Cleaned out catch basins.	Other (specify below)	N/A Spill caused by rainfall exceeding capacity.	N/A Spill caused by rainfall exceeding capacity.	11/23/2024 2:00: Cleanup started 11/23/2024 3:00: Cleanup ended	12/05/2024 13:25	Heavy storm caused rainfall to exceed capacity of sewer.	N												N													
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	897734	1.2	Certified	John J. Hough	San Dist. Superintendent	26-NOV-24	10-DEC-24	10-DEC-24	Category 1 Spill	352375	11/26/2024 05:56	11/26/2024 06:37	11/25/2024 06:00				See Attached Spill Map	38.4623	-121.4339	Lateral Clean Out (Public)			213	See attached Spill Map	Y	See attached Spill Map	64	0	See attached Spill Map	142	71	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See attached Spill Map	Y	38.4623	-121.4339	38.4625	-121.4346	38.4588	-121.429			11/26/2024 06:37	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Debris-General		Lower Lateral		Vitrified Clay		55	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified City of Sacramento	See Attached Description of Spill Event	Plan Rehabilitation or Replacement of Sewer		SacSewer will replace the main line tap.	SacSewer inspected the lower lateral with CCTV on November 26, 2024. Based on the findings, SacSewer will replace the main line tap.	11/26/2024 11:30	See Attached Description of Spill Event.	N			Strawberry Creek	Stream/Creek		Creek. See attached Spill Map	No observed impacts to aquatic life	Other (specify below)	No public impact	N/A	0	N	N												
9	9SSO10655	Active	City of National City CS	National City	897738	1.2	Certified	Martha Juarez	Assistant Director of Engineering & Public Works		27-NOV-24	27-NOV-24	Monthly Category 3 Spill	904 Melrose St	10/23/2024 07:30	10/23/2024 07:45	10/23/2024 07:00				Manhole located along centerline of Melrose Street in front of 904/902 Melrose Street.	32.68486	-117.10028	Manhole			300	Spill originated from manhole described above in item 6 and reached two storm drain inlets approximately 15 feet to the north and 15 feet to the south	Y	Storm drain curb inlets	300				300	Drainage Conveyance System		Spill reached two storm drain inlets approximately 15 feet to the north and 15 feet to the south of manhole from which spill originated	Y	32.68481	-117.10028	32.6849	-117.1003					10/23/2024 08:00	Duration/flow method was used assuming duration of 1 hour and 5gpm flow rate	Visual/situational evidence	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		50	Spill only temporarily impacted two storm drain inlets	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	Other spill response included CCTV sewer inspection	Clean up consisted of power washing street, manhole, and storm drain inlets, and vacuuming storm drain inlets.  	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Inspect impacted sewer asset		10/23/2024 09:30	After breaking the stoppage at approximately 8:00am, flow was restored, and the crew commenced clean-up.  The sewer main was evaluated with CCTV and the cause of the spill was determined to be grease deposition, with no structural concerns.		None	10/23/2024 09:30														None	None	None	None	Inspect impacted sewer asset.  Stoppage was broken/removed at time of spill response	None	None	None	None	
8	8SSO11382	Active	Ontario City CS	Ontario City	897745	1.1	Certified	Andy Marquez	Utilities Division Manager		27-NOV-24	27-NOV-24	Monthly Category 3 Spill	3655 East Airport Dr.	11/01/2024 08:52	11/01/2024 09:30	11/01/2024 10:05				A sanitary sewer gravity line running along the railroad track behind 3655 East  Airport Drive was vandalized by homeless individuals. 	34.06332	-117.57063	Gravity Mainline; Manhole			770	The spill was contained in a private road and an adjacent empty field.                                                         	N						770	Street/Curb and Gutter (2 3); Unpaved Surface		A sanitary sewer gravity line running along the railroad track behind 3655 East  Airport Drive was vandalized by homeless individuals. 	N									11/01/2024 10:26	The duration of the spill was calculated by multiplying the estimated flow rate of 10 GPM by the total number of minutes the spill occurred.	Manhole spill chart	Damage by Others Not Related to Collection System Construction/Maintenance; Vandalism (specify below)	Homeless individuals removed a manhole cover and disposed of debris, resulting in a partial blockage within the gravity sewer main.	Manhole		Vitrified Clay		55	No observations of impact due to the open field. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Arrived on-site and contained the sewer spill. Set up the combo truck to vacuum debris caused by vandalism and clear the blockage. Restored flow, flushed the mainline, and conducted a CCTV inspection to confirm no additional debris remained in the system. Cleaned the area and recovered the spilled volume back into the sanitary sewer system.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Installing Locking Manhole covers to prevent the Homeless from removing them.		11/01/2024 10:39	A sanitary sewer gravity line running along the railroad track on Airport Drive was vandalized by homeless individuals. Manhole covers were removed, and debris, clothing, lumber, trash, and railroad ties were dumped into the manhole, causing a partial blockage. Crews were dispatched to restore flow, and the necessary cleanup was completed.		None at this time	11/27/2024 10:00														N/A	Installing Locking Manhole covers to prevent the Homeless from removing them.	Once a month, drive by to ensure the homeless are removed from the location.	N/A	Manholes have been replaced and secured	N/A	The City's on-call contractor will secure all manholes�invoice from Cortactor for completed repairs.	Secure manholes with locking mechanism.	None at this time	
2	2SSO10168	Active	Redwood City CS	Redwood City	897754	1.1	Certified	Robin Kim	Public Works Superintendent		30-NOV-24	30-NOV-24	Monthly Category 3 Spill	77 Claremont Ave	10/23/2024 08:20	10/23/2024 08:44	10/23/2024 08:10				The primary spill appearance point was a sewer manhole in the street in front of 77 Claremont. (GPS coordinates provided below.) A secondary spill appearance point was in the ADU of the same property, from the bathroom.	37.489953990601	-122.242131025032	Inside Building or Structure; Manhole		The secondary spill appearance point was inside a building structure (ADU) at 77 Claremont Ave.	504	See attachments.	N						504	Paved Surface; Street/Curb and Gutter (2 3)		The slope of the street allowed the spill to remain on the odd numbered side of the street primarily in front of 77 Claremont and 77A Claremont and was contained to between 55 Claremont and 79 Claremont. The spill did not reach the storm inlet at the end of the block. 	Y	37.490069699524	-122.241938818627	37.490013795124	-122.242411668958					10/23/2024 09:13	Spill volume estimation is calculated based on the total time of the spill and the estimated rate of spill based on staff observations. The estimated spill rate is 8 gallons per minute, and the total spill time is estimated at 63 minutes for a total spill volume of 504 gallons. 	Spill start time is based on the resident�s description of the initial spill area at time of call, and staff�s estimated rate of spill of 8 gpm. The spill start time is estimated at 8:10am.   Spill end time is based on when staff restored flow, at 9:13am. 	Debris-General; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		47	The spill was contained to the paved street surface and curb and gutter between 55 and 79 Claremont on the odd numbered side of the street. The spill did not reach the nearest storm drain, which is located at the end of the block. A secondary appearance point was reported in a bathroom of the ADU at 77 Claremont. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Due to the slope and curvature of the street, the spill was contained to the paved surface and curb and gutter. Once crews restored sewer flow, cleanup activities were initiated. Crews washed down and vacuumed up the spill and wash down water. 	Adjusted Schedule/Method of Preventive Maintenance; Post Spill CCTV		Staff determined that the blockage was a result of a combination of grease and disposable wipes in the system. Staff will utilize enzymes during maintenance cleaning activities and monitor the location during future visits to determine if educational outreach is needed. 		10/23/2024 09:51	There are no reports of sewer backups or other issues in this area in the last 6 months. Staff observed grease and miscellaneous debris (wipes) during the spill response. Follow-up camera inspections did not identify defects in the pipeline. Crews will continue to note any observations during future maintenance activities. 		Not applicable.	10/24/2024 15:00														Not applicable.	Crews will utilize enzymes during maintenance cleaning activities to reduce grease build-up and monitor the location during future visits to determine if educational outreach is needed. 	Crews will utilize enzymes during maintenance cleaning activities. 	Not applicable.	Not applicable.	Not applicable.	See attachments.	Not applicable.	Not applicable.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	897755	1.1	Certified	Ameal McLaurin	Sewer Supervisor 2		11-DEC-24	11-DEC-24	Monthly Category 3 Spill	5276 Broadway, Oakland Ca	11/22/2024 19:44	11/22/2024 20:30	11/22/2024 22:30				Sewage appeared from floor drain inside the basement of building/structure.	37.83698	-122.25039	Combined Sewer Drain Inlet. (Combined Collection System Only); Inside Building or Structure	Sewage appeared from floor drain inside the basement of building/structure.		54	Sewage appeared from floor drain inside the basement of building/structure flooding the laundry room and office carpets.	N						0	Building or Structure		Sewage appeared from floor drain inside the basement of building/structure flooding the laundry room and office carpets.										11/22/2024 22:30	Calculated volumes: Laundry room: 15'L x 15'W x .01'D x 7.48-gal = 17 gallons Office: 25'L x 20'W x .01'D x 7.48-gal = 37 gallons Total spill: 17 + 37 = 54 gallons	Start time was based on eyewitness account. The end time was based on responding sewer crew restoring the flow in the mainline. 	Root Intrusion		Gravity Mainline		Vitrified Clay		125	Sewage appeared from floor drain inside the basement of building/structure flooding the laundry room and office carpets. A claim packet was provided to property owner to have a restoration company to clean the affected areas.	Y	Other (specify below); Property Owner Notified; Restored Flow	A claim packet was provided to property owner to have a restoration company to clean the affected areas.	A claim packet was provided to property owner to have a restoration company to clean the affected areas.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		The mainline has been placed on a 3-month hydro high preventative maintenance program, W. O. # 1575207		11/25/2024 10:30	CCTV inspection W.O. # 1574766 found root intrusion and grease deposition (FOG) to have been the cause of the overflow.		N/A	11/25/2024 10:30														N/A	The mainline has been placed on a 3-month hydro high preventative maintenance program, W. O. # 1575207	The mainline has been placed on a 3-month hydro high preventative maintenance program, W. O. # 1575207	N/A	CCTV inspection W.O. # 1574766 found root intrusion and grease deposition (FOG) to have been the cause of the overflow.	N/A	The mainline has been placed on a 3-month hydro high preventative maintenance program, W. O. # 1575207	CCTV inspection W.O. # 1574766 found root intrusion and grease deposition (FOG) to have been the cause of the overflow. The mainline has been placed on a 3-month hydro high preventative maintenance program, W. O. # 1575207	N/A	
5F	5SSO10774	Active	Yosemite Valley CS	US Dept of the Interior Park Service	897760	1.3	Ready to Certify			28-NOV-24			Category 1 Spill	Manhole by Village Store	11/27/2024 19:00	11/27/2024 19:00	11/27/2024 19:00				 	37.74151	119.583943	Manhole			50	Out door conditions were wet with snow. Spill from a manhole K4 entering a storm drain. Unable to determine if the storm drain is flowing and were it flows to. Removed wipes causing the SSO.	Y	Out door conditions were wet with snow. Spill from a manhole entering a storm drain. Unable to determine if the storm drain is flowing and were it flows to.	0	50	Unknown.	50	0	Drainage Conveyance System that discharges to surface water		Out door conditions were wet with snow. Spill from a manhole K4 entering a storm drain. Unable to determine if the storm drain is flowing and were it flows to. Removed wipes causing the SSO.	Y	37.74151	119.583943							11/27/2024 21:30	Visual estimation.	Small trickle from MH K4, used visual estimation.	Debris-wipes/Non-disposables		Manhole		Other (specify below)	Unknown	20	See previous statement.	N	Cleaned Up (specify below)	Disinfected the area.	 	Other (specify below)	Cleaned the line segment.	 	 	11/27/2024 21:30	 	N			Merced River	River		Storm drain that is believed to flow to the main stem of the Merced River	NA	Other (specify below)	Occurred at night and only 50 gallons or less. Impacted a storm drain. It was unclear if it was flowing and were the line goes to, but out of caution it is being reported as a surface water spill due to the unknowns	NA	0	N	N												
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	897763	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		06-JAN-25	06-JAN-25	Monthly Category 3 Spill	4533 West Yosemite Way	11/29/2024 15:24	11/29/2024 16:16	11/29/2024 15:24				The initial crew arrived at 4:16 P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage, and sewage was coming out of the maintenance hole. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed.	34.133635	-118.223811	Manhole			338	Spill coming from manhole and entered a City of Los Angeles owned catch basin located at Yosemite Way and Delevan Drive.	Y	City of Los Angeles owned catch basin located at Yosemite Way and Delevan Drive.	71				338	Drainage Conveyance System		The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	Y	34.130558	-118.225601	34.130425	-118.225802					11/29/2024 17:00	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.  	DIAMETER OF PICKHOLE OR OPENING 0.75 INCHES HEIGHT OF WATER OUT OF PICKHOLE/OPENING 3 INCHES FLOWRATE PER PICKOLE/OPENING (GPM) 4 GPM # OF PICKHOLES/OPENINGS 1 TOTAL FLOWRATE (GPM) 4 GPM DURATION OF SPILL (MINUTES) 96 MINUTES TOTAL FLOW (GALLONS) 338 GALLONS 	Root Intrusion		Gravity Mainline		Vitrified Clay		68	It was estimated that approximately 338 gallons of sewage backed out of the sewer as a result of the blockage, of that amount 71 gallons entered a City of Los Angeles owned catch basin located at Yosemite Way and Delevan Drive. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		On Friday, November 29, 2024 at 3:24 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 4533 West Yosemite Way (TG 564-J6). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 5:00 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 338 gallons of sewage backed out of the sewer as a result of the blockage, of that amount 71 gallons entered a City of Los Angeles owned catch basin located at Yosemite Way and Delevan Drive. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	Inspected Sewer Using CCTV to Determine Cause		On Friday, November 29, 2024 at 3:24 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 4533 West Yosemite Way (TG 564-J6). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 5:00 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 338 gallons of sewage backed out of the sewer as a result of the blockage, of that amount 71 gallons entered a City of Los Angeles owned catch basin located at Yosemite Way and Delevan Drive. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   		11/29/2024 17:00	On Friday, November 29, 2024 at 3:24 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 4533 West Yosemite Way (TG 564-J6). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 5:00 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 338 gallons of sewage backed out of the sewer as a result of the blockage, of that amount 71 gallons entered a City of Los Angeles owned catch basin located at Yosemite Way and Delevan Drive. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   		None at this time	11/29/2024 17:00														None at this time	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	None at this time	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	None at this time	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	On Friday, November 29, 2024 at 3:24 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 4533 West Yosemite Way (TG 564-J6). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 5:00 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 338 gallons of sewage backed out of the sewer as a result of the blockage, of that amount 71 gallons entered a City of Los Angeles owned catch basin located at Yosemite Way and Delevan Drive. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	None at this time	
2	2SSO10129	Active	East Palo Alto Sanitary Dist. CS	East Palo Alto Sanitary District	897765	1.1	Certified	Richard John Perez	Utility Manager		03-DEC-24	03-DEC-24	Monthly Category 3 Spill	2120 Salas Ct.	11/07/2024 13:27	11/07/2024 14:43	11/07/2024 13:12				See attached.	37.46328	-122.13554	Other (specify below)	lamphole		147	Inside catch basin and inside one section of storm drain pipe.	Y	City storm drain	147				147	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Inside catch basin in front of 2120 Salas Ct.	N									11/07/2024 15:39	2 hours and 27 minutes calculated at 1 GPM. The total estimated spill volume was determined by interviewing the homeowner which stated to be in and out of the house for most of the day until he witnessed water on the street then immediately a call was placed.  If you take the time of when the call was received (1:27pm) to the time blockage was cleared (3:39pm) plus 15 minutes per West Bay policy, totals to 147 minutes x 1 gallon per minute of estimated flow rate will give you a total spill volume of 147 gallons.	The total estimated spill volume was determined by interviewing the homeowner which stated to be in and out of the house for most of the day until he witnessed water on the street then immediately a call was placed.  If you take the time of when the call was received (1:27pm) to the time blockage was cleared (3:39pm) plus 15 minutes per West Bay policy, totals to 147 minutes x 1 gallon per minute of estimated flow rate will give you a total spill volume of 147 gallons.	Pipe Structural Problem/Failure - Controls		Gravity Mainline		Vitrified Clay		50	Spill entered catch basin and one section of pipe, was fully recovered and washed down with 3x the amount of fresh water, all wash down material was removed from the storm drain and returned to the collection system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned All Spill to Sanitary Sewer System		Built a berm with soil from near by yard and also put out a rubber dike.	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		After 11 feet of pipe was replaced, CCTV was performed to reassess entire line segment.		11/08/2024 12:45	CCTV main to determine cause was a pipe (clay) defect.		N/A	11/08/2024 12:45														N/A	N/A	N/A	N/A	After 11 feet (replaced) of pipe was replaced, CCTV was performed to reassess entire line segment.	N/A	Repair report attached.	Spill report attached.	N/A	
2	2SSO11174	Active	San Jose State University CS	CSU San Jose	897770	1.1	Certified	Matt Nymeyer	Director EHS		02-DEC-24	02-DEC-24	Category 1 Spill	San Jose State University CEFCU Spartan Stadium	11/16/2024 17:00	11/16/2024 17:00	11/16/2024 17:00	12/02/2024 09:44	24-6710	02-DEC-24	see attachment	37.31945	-121.86937	Lower Lateral (Public)			3000	see attachments	Y	see attachment	0	3000	see attachment	3000	0	Drainage Conveyance System that discharges to surface water		see attachment	Y	37.31942	-121.86938							11/16/2024 20:35	estimate based on flow rate per minute for duration of discharge, 20 gals/min for 2.5hrs	estimate	Debris from Lateral		Lower Lateral		Cast Iron		50	sanitary sewage discharge to storm drain	N	Cleaned Up (specify below)	city of san jose sent a response team and vacuumed up conveyance and drain location and applied disinfectant. 	see attachment	Adjusted Schedule/Method of Preventive Maintenance		see attachment	all milestones to be completed by 12/6/2024	11/16/2024 11:42	see attachment	N			coyote creek	Stream/Creek		discharge to city ms4, then to creek	none	Other (specify below)	none	n/a	0	N	N												
8	8SSO10560	Active	Riverside City CS	Riverside City	897566	2.2	Certified	Kevin Street	Wastewater Field Operations Manager	20-NOV-24	03-DEC-24	03-DEC-24	Category 1 Spill	4080 Lime St.	11/18/2024 08:44	11/18/2024 09:00	11/18/2024 08:30	11/18/2024 11:07	24-6462		Spill originated from three co-located manholes and a nearby private cleanout. See attached photographs. 	33.97734	-117.37299	Lateral Clean Out (Private); Manhole		3 Manholes, one Private lateral cleanout	30258	See attached	Y	See attached	11911	0	Overflowing manholes discharged into immediately adjacent catch basin. Discharge travelled approximately 1.9 miles through storm drain system and emerged at a large rectangular concrete major flood control channel discharging to the Santa Ana River. The flood control channel continues approximately 960 feet before discharging to a vegetated channel. The vegetated channel continues for another ~2700 feet before reaching the Santa Ana River. A water filled berm was located at the point where the underground storm system daylights and an earthen berm was located where the concrete channel turns vegetated. See attachments. 	18347	11911	Drainage Conveyance System that discharges to surface water		See attached Spill Summary document attached. Coordinates of spill destination included below. 	Y	33.97563	-117.39923							11/18/2024 10:33	Comparison of photographs of overflowing manholes and cleanout against those pictured in sewer spill estimation guide along with the associated flow rates. Nuisance flows receiving channel previously quantified under similar base flow conditions. City conservatively estimated that all existing nuisance flows were 100 percent contaminated from exposure to wastewater and included these as 100 percent lost over the 45 minute timeframe where full containment had not been established.  	Start time provided by County of Riverside employee who saw the overflowing manholes and called the City call center.  Responding technicians were able to discuss the findings an start time with the reporting party. 	Debris-General; Debris-Rags; Debris-wipes/Non-disposables; Inappropriate Discharge to Collection System; Vandalism (specify below)	Responding crews recovered three large (estimated 35-55 gallons) can-liner type trash bags from the collection system. Crews vacuumed approximately 30-50 pieces of trash from the surcharged manhole including plastic water bottles, Styrofoam cups, aluminum cans, and other paper trash and rags. Presumed that bags of trash may have been placed in the collection system causing the blockage. 	Gravity Mainline		Vitrified Clay		66	Spill entered storm drain catch basin and travelled approximately 1.9 miles to where it daylighted in a large county owned rectangular flood control channel which drains to a vegetated drainage.  The vegetated channel continues for approximately 2100 feet where it connects to the Santa Ana River. Staff identified cloudy water and could detect odor of sewage within the concrete flood control channel. There were visible shallow pools of water where the concrete and vegetated channels met; unable to confirm if these were sewage, but vacuumed dry regardless. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	See attached summary document/photolog. Cleared blockage. Installed dirt berm at the terminus of concrete flood control channel and water-filled containment dams within concrete channel. See attached photos. Cleaned and disinfected paved areas. Cleaned and flushed affected storm drain system and recovered flush water. City deployed 5 vacuum trucks to collect contained flows and to intercept those actively spilling. City deployed one 3  trash pump and 2, 2  submersible trash pumps to pump collected water into the sewer system.	Cleared blockage. Installed dirt berm at the terminus of concrete flood control channel and water-filled containment dams within concrete channel. See attached photos. Cleaned and disinfected paved areas. Cleaned and flushed affected storm drain system and recovered flush water. 	Other (specify below)	Install remote monitoring system in location of spill and in the area of clustered county and local government buildings. 	Install remote monitoring system in location of spill and in the area of clustered county and local government buildings. 	Estimated time to install remote monitor is 4 weeks depending on vendor availability. 	11/20/2024 15:36	Vandalism, discharge of materials to the collection system which should not be found there. Collections staff have engaged the source control section for help in trying to identify a potential source and for follow-up if one is found. 	Y	Attempt to identify a potential source and possible rule a member of the public or other party from opening a manhole and depositing trash in the collection system. 	12/20/2024 15:30	Santa Ana River	River		River	None observed from visual observations of downstream conditions beyond containment. No flows observed connecting to or discharging to the River Mainstem. 	Restricted Public Access		N/A	0	N	Y	Samples collected from water within containment and beyond containment berm within vegetated channel. 	Total and Fecal Coliform, Ammonia, TSS, TDS, COD									Attempt to identify a potential source and possible rule a member of the public or other party from opening a manhole and depositing trash in the collection system. 	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	897773	1.2	Certified	Kent Vian	Asst. Deputy Director	02-DEC-24	11-DEC-24	11-DEC-24	Category 2 Spill	NOT-40201178304 OLITE CT & LA PINTURA	11/27/2024 14:25	11/27/2024 15:05	11/27/2024 14:26	11/27/2024 23:19	24-6661		SPILL ORIGINATED FROM MANHOLE 140 AND HEADED SOUTH AND SETTLED INTO GROUND.	32.83026	-117.2522	Manhole	NOT APPLICABLE	NOT APPLICABLE	1375	SPILL EXITED MANHOLE DUE TO ROOT BLOCKAGE IN 8 VC SEWER MAIN. SPILL SOAKED INTO GOUND SOUTH OF OVERFLOWING MANHOLE.  	N	NOT APPLICABLE SOAKED INTO CANYON DIRT SOUTH OF SPILLING MANHLOE. 	0	0			0	Unpaved Surface	N/A	THE SPILL EXITED MANHOLE 140 AND TRAVELED SOUTH AND SETTLED/SOAKED IN THE GROUND	Y	32.83026	-117.2522							11/27/2024 19:00	THE SPILL VOLUME ESTIMATIONS WERE CALCULATED USING THE VISUAL CALCULATED METHOD.	THE SPILL ASSUMPTIONSWERE ASSUMED WHEN THE CUSTOMER REPORTED THE OVERFLOW.	Root Intrusion	N/A	Gravity Mainline	N/A	Vitrified Clay	N/A	68	THE IMPACTED AREAS OF THE SPILL WERE AROUND THE MANHOLE AND THE GROUND JUST SOUTH OF MANHOLE 140	N	Mitigated Effects of Spill (specify below); Restored Flow	N/A	UPON ARRIVAL SET UP COMBO TRUCK AND RELIVED SPILL FROM MANHOLE 138 WHICH WAS ON THE OTHER SIDE OF CANYON	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below); Plan Rehabilitation or Replacement of Sewer; Post Spill CCTV	Frequency change to all assets in canyon to same frequency.  	THE SPILL CORRECTIVE ACTION WAS TO RELIEVE BLOCKAGE FROM UPSTREAM MANHOLE 138. Asset will be added to EPM Group job. Frequency change to all assets in canyon to same frequency.  	N/A	11/27/2024 19:00	THE SPILL CAUSE WAS FROM ROOT INFILTRATION DUE TO THE SEWER MAIN BEING IN A CANYON.	N	N/A	11/27/2024 19:00										N												N/A	
2	2SSO10158	Active	Mt. View SD CS	Mt View Sanitary District	897776	1.3	Certified	Stacey Ambrose	Deputy General Manager	03-DEC-24	13-DEC-24	13-DEC-24	Category 2 Spill	41 Austen Way	11/27/2024 18:25	11/27/2024 19:05	11/27/2024 17:55				spill occurred out of a upper lateral cleanout at resident address 41 Austen Way.    38.00421 -  -122.07430	38.00421	-122.0743	Upper Lateral (Private)			1231	The spill was coming out of a 4  cleanout at 41 Austen Way.  The spill was contained on the property.	N						10	Building or Structure	 see attachment 	 see attachment 	Y	38.00421	-122.0743							11/27/2024 19:23	 see attachment 	upstream connections method SSO volume estimating worksheet for service laterals  see attachment 	Debris-Rags; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		74	The spill impacted the outdoor breezeway with 2 sheds and the back and side yard.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	 see attachment 	responded to the SSO with a jetter truck.  I saw that the upstream manhole was holding a level and that the spill was coming out of the resident's cleanout.  Broke the blockage with the jetter truck.  We cleaned up debris all debris, hosed down the area, and sprayed the entire area with enzymes.  We called Carl Warren for restoration services.  spill was contained on the property affecting concrete, under 2 sheds, and dirt in the side yard and back yard.  Carl Warren contacted the restoration company and they arrived the next morning at the residence.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Post Spill CCTV	Hung informative FOG door hangers on residents' doors upstream of the spill.	added the specific line to a higher cleaning frequency schedule.  informed upstream dischargers of the effects of FOG using door hangers.  we believe putting this line on a higher cleaning frequency will prevent the reoccurrence of spills.	MVSD is currently in the process of doing a full collections system analysis and will be preparing for collections system repairs in the coming years.  the system analysis should be completed in year 2026.	12/05/2024 15:00	We found that FOG and rags were the main contributors to the spill.  	N												N													
2	2SSO10185	Active	Sanitary District #2 Of Marin CS	Sanitary District #2 of Marin	897783	1.3	Certified	Chris Good	Senior Civil Engineer	03-DEC-24	10-DEC-24	10-DEC-24	Category 1 Spill	489 Corte Madera Ave	11/27/2024 09:19	11/27/2024 09:36	11/27/2024 08:00	11/27/2024 12:19	24-6649		Spill came from manhole B-5_420 adjacent to 489 Corte Madera Avenue on the west side of the road in an unpaved shoulder. There was only one appearance point.	37.92175	-122.53018	Manhole		No additional appearance points	297	The spill came out of manhole B-5_420 in the unpaved shoulder and traveled down the east edge of the road. A small amount of the sewage entered a storm drain approximately 10' away from manhole to the north and was trapped in that storm drain and later recovered. The remainder of the sewage flowed north, across the road, and a large portion of the spill entered a storm drain approximately 120' north of the manhole on the east side of the road. The remaining estimated 35 gallons of sewage permeated into the road shoulder father to the north or was tracked down the road by passing vehicles.	Y	The drainage conveyance system travels from the first catch basin on Corte Madera Ave, down the street, then is routed down to Grove Ave, Oakdale Ave, enters a trunk storm drain on Chapman Drive, crosses under Town Park and outfalls into High Canal. The total length of conveyance to surface water is 3630 feet and is all through storm piping.	10	25	The spill traveled through 3630 LF of storm pipe and outfalls into High Canal which is pumped into Corte Madera Creek and flows to the San Francisco Bay.	227	45	Drainage Conveyance System that discharges to surface water; Paved Surface; Surface Water; Unpaved Surface		The spill came out of manhole B-5_420 in the unpaved shoulder and traveled down the east edge of the road. A small amount of the sewage entered a storm drain approximately 10' away from manhole to the north and was trapped in that storm drain and later recovered. The remainder of the sewage flowed north, across the road, and a large portion of the spill entered a storm drain approximately 120' north of the manhole on the east side of the road. Any remaining sewage permeated into the road shoulder father to the north or was tracked down the road by vehicles. Any spill that entered the storm system traveled 3600 LF and outfalls into High Canal.	Y	37.92212	-122.53012	37.92785	-122.52605					11/27/2024 10:33	Staff used the eyeball estimation method, duration and flow rate method, and upstream lateral connections method. Because the spill happened shortly after a rain storm and everything was wet and saturated, the only reliable estimation method for discharge amount was the upstream lateral connection volume method. Staff used the eyeball estimation method to determine volumes recovered.	The start time was determined from a witness calling in and stating when they saw the spill begin. The end time was determined when maintenance staff cleared the blockage and stopped the spill.	Root Intrusion	There were reports that an upstream resident had lateral maintenance work done by a plumber and likely flushed roots from their lateral into the sewer main which ended up blocking the main.	Gravity Mainline	Sewer main failure was between manholes B-5_420 and B-5_410.	Vitrified Clay		56	No direct impact observed.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Marin County EHS notified as well as CalOES.	Staff immediately built check dams around storm drains to prevent further sewage from entering them. They then used the vactor truck to break through and remove the root blockage in the sewer main, restoring flow to the system. The crew then used the hose and vactor to clean out the two impacted catch basins and wash down the street collecting spilled sewage.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		The Sanitary District has added this sewer line to our priority cleaning schedule and plans to rehabilitate the main in the next few years to prevent future root intrusion.	Cleaning will occur at least once a year prior to the winter season and rehabilitation should be completed by 2026.	11/27/2024 12:35	The maintenance crew removed a root ball downstream after clearing the blockage in the sewer main. It was reported that an upstream homeowner had cleaning work done on their lateral shortly before the spill and it is likely that the plumber flushed a root ball into the sewer main which caused a blockage where there was root intrusion in the sewer main.	Y	The District is completing CCTV of failed sewer main to determine location of failure. We are also CCTVing the storm system to determine where the conveyance system drains to.	12/06/2024 17:09	High Canal, Corte Madera Creek, San Francisco Bay	Ocean; Other (specify below); Stream/Creek	Man made earthen channel	High Canal is a man made open channel that conveys water to Corte Madera Creek. Water is pumped from High Canal into Corte Madera Creek which travels out to the San Francisco Bay.	None.	Other (specify below)	None, spill was small and Marin County EHS directed that no testing, public notifications, or closures were required.	None	0	N	N											The District is completing CCTV of failed sewer main to determine location of failure. We are also CCTVing the storm system to determine where the conveyance system drains to.	
5S	5SSO11005	Active	Mule Creek State Prison CS	California Department of Corrections and Rehabilitation	897784	1.5	Certified	Anthony Orta	Correctional Plant Manager	03-DEC-24	24-DEC-24	24-DEC-24	Category 2 Spill	Mule Creek state Prison 	12/02/2024 09:00	12/02/2024 09:00	11/30/2024 08:30	12/02/2024 13:10	24-6717		appearance point was a manhole behind building Y-1 	38.36875	-120.95381	Manhole			50000	the spill was contained to the area behind buildings Y-1 and Y-2. the spill entered multiple storm drains which led to the main out fall where the flow was contained and what entered the drainage system was pumped to the wastewater treatment plant. Based off flow meter reading approximately 45000 gallons was pumped to the wastewater treatment plant.  An additional 3 loads using the vac- truck was recovered approximately 1500 gallons. 	Y	the spill traveled across the inter perimeter road and across the dirt and entered multiple storm drains and traveled to the main outfall. at the main outfall the internal curb stopped the flow from exiting the drainage system. The internal float-controlled pumps sent the flow to the wastewater treatment plant.	45000	0			46500	Drainage Conveyance System; Street/Curb and Gutter (2 3); Unpaved Surface		The spill started at a manhole behind building Y-1 and traveled down the paved road to the unpaved surface and entered the storm drain system. where it was contained by the internal curbs and was pumped from the main out fall to the wastewater treatment plant. no flow passed the internal curbs and exited the storm system. 	Y	38.36902	-120.95647							12/02/2024 09:45	The spill flow was estimated using the flow meter on the pumps that pumped the flow from the main outfall to the wastewater treatment plant. The flow meters showed approximately 45,000 gallons was pumped to the wastewater treatment plant. 3 loads of flow was collected using the 500-gallon vacuum trailer was also taken to the wastewater treatment plant. for a total of 46,500 gallons recovered. An estimated 3,500 gallons was not recovered due from the unpaved surface.  A estimated total of 50,000 gallons was spilled. 	The estimated spill start time is based off the main out fall flow meter reading. the meter was manually read at approximately 9am November 30th showing no extra flow. So flow must have started after 9am on November 30th. 	Debris-General	the 6 inch main was blocked by towels and trash that had been flushed. 	Gravity Mainline; Manhole	blocked 6in main the caused the spilled to appear out of a manhole. 	Polyvinyl Chloride (PVC)		39	This spill impacted building y-1 and the clothing exchange by not having water for 2 hour. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned Portion of Spill to Sanitary Sewer System		outfall gates were closed as soon as Plant Operations was notified of a spill. At arrival to spill location flow was diverted to one storm drain while, staff shut the water supply to the building off and opened the main hole. The manhole cleaned out with a vacuum trailer to access the blocked main line. The Jetter was used and ran upstream to clear the blockage.  once the blockage was cleared and flow was restored the clean-up began. all trash and debris was removed from the manhole using the vacuum trailer. The storm water system was flushed with water, 10 loads and flush water using the 500-gallon vacuum trailer were delivered to the wastewater treatment plant.  all trash and debris was cleaned form the ground and roadway was swept using a street sweeper. 	Other (specify below)	no corrective action plan was formed the spill was unstoppable, due to it was caused by inmates flushing trash and debris. 	None 	None 	12/04/2024 02:00	the investigation was done while clearing the blockage and found the cause to be a towel and trash to have been flushed causing the blockage.  	N												N													
9	9SSO10678	Active	Moulton Niguel Water District CS	Moulton Niguel Water District	897785	1.2	Certified	Sara Boyer	Regulatory Compliance Manager	04-DEC-24	23-DEC-24	23-DEC-24	Category 1 Spill	Del Avion 	12/01/2024 09:00	12/01/2024 10:15	12/01/2024 09:00	12/01/2024 12:37	24-06697		Spill appearance point at force main at sewer lift station.	33.48925	-117.70854	Force Main	Flow was seeping through pavement cracks. Upon excavation, the spill was discovered to be coming from the force main. 		18975	See photos. Spill entered storm drain, flowed west through storm drain infrastructure to Salt Creek. 	Y	Spill entered storm drain system at a curb storm drain located immediately west of the lift station driveway. 	15600	3375	The storm drain system flows to the west and joins with Salt Creek in Dana Point. 	3375	15600	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		The nearby storm drain discharges to Salt Creek, near Monarch Beach. Salt Creek drains to the Pacific Ocean at the Salt Creek Beach outlet. 	N									12/01/2024 14:25	Volume estimation was calculated using the pump run times, volume of the force main, visual estimation and volumes of vacuum trucks used for pumping. 	Spill was identified by an MNWD employee. Station had been checked that morning and there was nothing observed. Spill end time was determined based on the last discharge, documented in the event notes.	Other (specify below)	Hole identified in ductile iron force main pipe. 	Force Main		Ductile Iron		35	The spill resulted in a temporary closure of portions of Salt Creek beach. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Curb and gutter was dammed with dirt and sandbags, vacuum truck was stationed at the storm drain to recover flow. Vacuum trucks were rotated to keep recovering flow as the force main drained. Additional vacuum trucks were used to pump down the wet well to prevent additional flow. Appropriate agencies were notified. Surface water sampling was conducted by OCHCA and MNWD. 	Curb and gutter was dammed with dirt and sandbags, vacuum truck was stationed at the storm drain to recover flow. Vacuum trucks were rotated to keep recovering flow as the force main drained. Additional vacuum trucks were used to pump down the wet well to prevent additional flow. Paved surfaces were washed down after repairs were completed. 	Repaired Facilities or Replaced Defect	Pipe section as excavated and replaced. 	Discussion of replacement of identified ductile iron sections of force mains throughout district. The event will inform CIP planning efforts.  	To be determined during CIP planning process. 	12/06/2024 15:39	The force main was excavated and a hole was discovered in the ductile iron pipe. The hole was possibly a result of corrosion. The section of pipe was then replaced. 	N			Salt Creek, Pacific Ocean	Ocean; Stream/Creek		Salt Creek was observed to have vegetation overgrowth and some algae both upstream and downstream of the storm drain discharge junction. No debris or discoloration or erosion was observed as a result of the spill. 	No visible impacts to Salt Creek were seen during investigation. 	Public Closure	Beach closure at the Salt Creek Outlet to the Pacific Ocean began on 12/3/24 and was lifted on 12/6/24. 	Orange County Environmental Health	4	N	Y	MNWD conducted sampling upstream and downstream of the location that the storm drain joins Salt Creek. OCHCA conducted ocean water sampling at the Salt Creek Outlet, as well as north and south of the outlet. 	Creek samples were analyzed for: pH, Ammonia, Nitrate, Nitrite, Phosphorous, total coliform, DO, E. Coli.  Beach/Ocean Water samples were analyzed for: total coliform, fecal coliform, enterococcus. 										
5S	5SSO11001	Active	Modesto CS	Modesto City	897791	1.3	Certified	Robert Englent	Wastewater Collection System Superintendent	03-DEC-24	12-DEC-24	12-DEC-24	Category 2 Spill	320 Thelma Lane	12/01/2024 12:12	12/01/2024 12:42	12/01/2024 11:00	12/01/2024 14:24	24-6700		The spill originated from TMHSS005757 in front of 320 Thelma Lane. See attachments. 	37.69028	-120.98979	Manhole			2850	Sewer spilled from TMHSS005757. The sewer travelled South 35 feet across the road to the gutter where it travelled 80 feet to the North and stopped. The sewer also travelled 55 ft. West to catch basin SD005103 and then entered rock well SD016688.  See attachments	Y	Sewer spilled out of MHSS005757 and flowed into the gutter where it reached catch basin SD005103 and entered rock well SD016688. See Attachments.	0	0			410	Drainage Conveyance System; Groundwater Infiltration Basin or Facility; Street/Curb and Gutter (2 3)		Sewer spilled from TMHSS005757. The sewer travelled South 35 feet across the road to the gutter where it travelled 80 feet to the North and stopped. The sewer also travelled 55 ft. West to catch basin SD005103 and then entered rock well SD016688. 	Y	37.69033	-120.98974	37.69025	-120.99002					12/01/2024 14:10	The pick hole method was used to calculate the flow. See Attachment	 We spoke the resident at 316 Thelma Lane (Abram) and he said that he left for the movies around 0930 and returned at 1200 to find the sewer spilling. Based on how much water was spilt we determined that the spill likely started at 1100 that morning. The vacuum truck arrived to break the blockage at 1404 and the blockage was broken at 1410 ending the spill. See Attachment.	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		52	2440 gallons of sewer water got into rock well SD016688 and was discharged to land.  See Attachment. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Resident called in reporting sewage in gutter at 12:12pm, upon arrival at 12:42, I found sewage actively flowing from manhole 005757, I contained the spill and then immediately contacted ECS (Brian) he arrived at 115pm, assist was dispatched at 12:48 pm and arrived at 2:04 pm set up on manhole 005756 stoppage was broken at 2:10pm.  Assist crew cleaned 175' of curb and gutter, catch basin #16688 and rock well SD016688.	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Post Spill CCTV		The cleaning PM was changed from a 3 year cleaning to one year cleaning frequency. A CCTV PM was created to inspect the line just before the 6 month mark. A root foam PM was created to mitigate the effects of the roots. ECS has been notified to send out FOG enforcement material to the upstream properties. See Attachment.	N/A	12/01/2024 15:55	Heavy roots with attached grease was the cause of the spill.	N												N													
3	3SSO18092	Active	Boronda Sanitation District CS	Monterey County Public Works Department	897796	1.3	Certified	Tom Moss	Senior Water Resources Hydrologist		03-DEC-24	03-DEC-24	Monthly Category 3 Spill	Boronda CSD Manholes #6, #7 and #8	11/01/2024 10:30	11/01/2024 11:30	11/01/2024 07:30				The spill originated at manhole #6, #7 and #8.	36.69062	-121.67593	Manhole			600	There was a minimal amount of spreading around manholes 6, 7 and 8 as shown in the attached photographs.	N		0				0	Unpaved Surface		The spill occurred in a flat dry dirt field, at three manholes, with minimal spreading around the manholes as shown in the attached photos.	Y	36.69088	-121.67552							11/01/2024 10:39	The spill was stopped by City of Salinas staff who estimated a spill rate of 3.3 gpm from 7:30 am to 10:39 am.	Eric Maya, property manager of 800 W Rossi St stated an employee notified him of the spill start time.  The spill end time was reported by the City of Salinas staff based on the time the blockage was cleared.	Debris-General		Manhole		Polyvinyl Chloride (PVC)		39	The spill resulted in no known impacts.	N	Cleaned Up (specify below)		The spill did not require containment due to the location in a flat dry dirt field.  Flow was restored quickly, and the areas were sprayed with bleach/water.	Repaired Facilities or Replaced Defect		A City of Salinas crew responded to the spill call.  They arrived on site, assessed the situation, and started running a hydro-jet to clear the blockage.  They contacted the County staff who called GreenLine Septic Services to continue cleaning the lines with their hydro-jet truck.  A 12  x 5  piece of steel was found and removed from the sewer line at manhole #6.  		11/01/2024 10:39	The spill was caused by a 10 x5  piece of steel that caused grease and debris build-up.  The source of the steel is unknown. 		Manhole #6 will be inspected to determine if steel material blocking the line was the result of a deteriorating manhole.  The manhole will be repaired, as needed.	12/20/2024 17:00														N/A	Manhole #6 will be inspected to determine if steel material blocking the line is the result of a deteriorating manhole cover.  The manhole cover will be repaired, as needed.	Additional preventive maintenance is not needed at this time.	There are no planned repairs at this time.	The steel material causing the blockage was removed from manhole #6.	None	The attached spill report and photos document the completed system maintenance.	Monterey County Public Works, Facilities & Parks will contact the City of Salinas Public Works staff to improve communication and ensure County staff are notified more quickly in the future.	Manhole #6 will be inspected to determine if steel material blocking the line was the result of a deteriorating manhole.  The manhole will be repaired, as needed.	
6A	6SSO11117	Active	Susanville Sanitary District CS	Susanville SD	897805	1.8	Certified	CASEY WILLIAMS	Operations Superintendent		09-DEC-24	09-DEC-24	Monthly Category 3 Spill	880 chest nut	11/30/2024 12:44	11/30/2024 13:00	11/30/2024 12:44				n/a	40.42372	-120.65803	Manhole			100	n/a	N						0	Unpaved Surface		spill was on dirt lot										11/30/2024 13:20	eyeball method	phone call from public	Root Intrusion		Gravity Mainline		Other (specify below)	a/c	50	spill went into dirt area	N	Restored Flow		used vactor to restore flow	Added Sewer to Preventive Maintenance Program		CCTV Sewer  Line		12/04/2024 07:51	Cause of spill was roots		CCTV	12/06/2024 08:25														n/a	adjust cleaning schedule	hydro cleaning	no	CCTV	no	no modifications	no modifications	CCTV	
5S	5SSO10993	Active	Manteca CS	Manteca City	897806	1.1	Certified	Derek Perry	Collections Supervisor 		22-FEB-25	22-FEB-25	Monthly Category 3 Spill	Arrowsmith Dr	12/03/2024 09:36	12/03/2024 09:54	12/03/2024 08:30				See Attatched	37.82613	-121.23353	Manhole		Two other Manholes	360	See attachments	Y	Two DI's with sumps	2				360	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		See Attached										12/03/2024 11:54	Duration and Flow rate comparison	A crew working in the area noticed the spill start. Sanitary sewer collections crew broke main line plug at-nd noted the time.	Fats, Oil and Grease (FOG)		Gravity Mainline		Polyvinyl Chloride (PVC)		37	Paved surface and gutter pan affected. Minimal traffic in the area	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Sand bag in form of DI's locate dry man hole to clear gravity main line. Pressure was and vac spill with combo truck.	Post Spill CCTV		No major changes. Hydro Jet gravity main		12/03/2024 15:15	Pipe in good shape, with a couple sags. No definite cause determined.		A yearly recurring CCTV work order is being created to monitor this gravity main line.	12/06/2024 11:25														None	No modifications needed, according to CCTV findings	None	None	None	None	NA	NA	A yearly recurring CCTV work order is being created to monitor this gravity main line.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	897808	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	04-DEC-24	09-DEC-24	09-DEC-24	Category 1 Spill	110 Hiller Drive, Oakland Ca	12/02/2024 08:16	12/02/2024 09:06	12/02/2024 07:00	12/02/2024 09:55	24-6711	07-DEC-24	Manhole in the street was overflowing; the sewage was flowing to the street curb and gutter to the nearest storm inlet.	37.85459	-122.22945	Manhole			640	Manhole in the street was overflowing; the sewage was flowing to the street curb and gutter to the nearest storm inlet.	Y	21  storm line named Temescal creek that flows underground to a non-drinking water lake named Lake Temescal.	0	640	21  storm line named Temescal creek that flows underground to a non-drinking water lake named Lake Temescal.	640	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		Manhole in the street was overflowing; the sewage was flowing to the street curb and gutter to the nearest storm inlet.	Y	37.85459	-122.22945							12/02/2024 10:15	 1  pick hole x 2  height = 2.51 GPM  255 min x 2.51 GPM = 640 gallons.	Start time was based on eyewitness account. End time was based responding crew restoring the flow in the mainline.	Root Intrusion		Gravity Mainline		Vitrified Clay		125	Manhole in the street was overflowing; the sewage was flowing to the street curb and gutter to the nearest storm inlet.	Y	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow	Staff washed down and recovered solids in the street curb and gutter, and the storm inlets. East Bay Regional District was notified.	Staff washed down and recovered solids in the street curb and gutter, and the storm inlets. 	Adjusted Schedule/Method of Preventive Maintenance	Sewer main was adjusted to 3-month hydro high frequency maintenance program. W.O. # 1536250	Sewer main was adjusted to 3-month hydro high frequency maintenance program. W.O. # 1536250.	Sewer main was adjusted to 3-month hydro high frequency maintenance program. W.O. # 1536250.	12/02/2024 14:30	CCTV report found lose roots to be the cause of the spill. The condition of the main sewer is grade 1.	N			Temescal Creek, and Lake Temescal	Lake		Non-potable stormwater detention basin.	None.	Temporary Restricted Use		East Bay Regional Park District	2	N	Y	EBRPD Caldecott Inlet, South Beach, Temescal Inlet- Total Coliform 24,000, E. Coli Total 10,000 Caldecott Inlet - Total Coliform 24,000 E. Coli - 24,000 Temescal Inlet - Total Coliform 1,700 E. Coli 280 	Coliform, E. coli										
2	2SSO10200	Active	Sunnyvale CS	Sunnyvale City	897812	1.4	Certified	Winola Cheong	Senior Engineer		04-DEC-24	04-DEC-24	Monthly Category 3 Spill	1109 Lily Ave Sunnyvale, Ca 94086	11/10/2024 09:20	11/10/2024 10:15	11/10/2024 08:40				Category 3 spill from gravity sewer main caused by roots and grease on Block map # 226 from residents clean out at property line located at 1109 Lily Ave, Sunnyvale, Ca 94086. Please see attached maps and pictures. 	37.36201	-122.00051	Lateral Clean Out (Private)		N/A 	600	Failure accrued on resident's private lateral caused by main stoppage. Spill was contained in curb and gutter directly in front of home and down the street. 	Y	Spill was in the curb and gutter and nearby storm drain inlet and manhole. Manhole and inlet were plugged using sandbags to stop and absorb spill. Spill did not go past manhole. All spill was contained using spill shark and sandbags.	600				600	Drainage Conveyance System; Street/Curb and Gutter (2 3)		Curb and gutter near home as well as nearby drain inlet and manhole. 	Y	37.36201	-122.00051							11/10/2024 10:40	Duration and flow rate. Using San Diego Spill chart  	Amount of spill in gutter as well as time and flow rate based on visuals when arrived on site	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		60	Public Health and interruption of services	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	Disinfected area with Bacteria enzymes and odor control chemicals 	contained spill with sandbags and spill shark. Removed blockage using combo truck. Disinfected effected area. Washed down area and vacuumed all spill and chemicals 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Post Spill CCTV	Root cut the main and hydro flushed affected area. Treated with grease chemical 	Isolated occurrence. CCTV camera post root saw and flush show main to be in working condition. Main to remain on regular hydro flushing schedule  		11/10/2024 14:30	CCTV determined mainline had roots and grease build up causing stoppage. 		N/A	11/20/2024 08:45														N/A	N/A 	N/A	N/A	N/A	N/A	N/A	N/A	N/A	
4	4SSO10443	Active	Whittier City CS	Whittier City	897826	1.1	Certified	Kyle Cason	Director		18-DEC-24	18-DEC-24	Category 1 Spill	9015 Lindante, Whittier	12/02/2024 10:20	12/02/2024 10:40	12/02/2024 10:10				The discharge occurred at MH 4104. Crews Jetted from MH 4103 and broke blockage at 315 feet. 	33.96022	-117.99218	Gravity Mainline; Manhole			150	Discharge coming out of MH 4104	Y	Nearest Storm drain to location	0	150	Discharge point MH 4104	150	0	Drainage Conveyance System that discharges to surface water	Storm drain	Discharge from MH 4104.	Y	33.96022	-117.99218							12/02/2024 10:50	SSCSC/CWEA MH Overflow Gauge (MH 4104 5 gpm x 30 min = 150 gal	Resident notified Public Works staff by phone. 	Root Intrusion		Gravity Mainline; Manhole		Vitrified Clay		40	Minimal impact. Discharge spill from MH 4104 onto the street then into storm drain. 	N	Cleaned Up (specify below); Restored Flow	Placed disinfectant along the roadway to the storm drain. 	Discharge was minimal. Vac Truck crew used water to clean off residual and vacuumed water into vac truck.  	Inspected Sewer Using CCTV to Determine Cause		We will evaluate sewer main line with CCTV. Depending on result, we may increase maintenance frequency, schedule a spot repair or maintain the current maintenance schedule. 	None. 	12/02/2024 11:00	Immediate visual inspection, the spill was caused by root intrusion. 	N			Coyote Creek	Other (specify below)	dry river bed. 	Coyote Creek	None	Other (specify below)	None	None	0	N	N												
5S	5SSO11054	Active	South Placer Mud CS	South Placer MUD	897827	1.2	Certified	Eric Nielsen	Superintendent	04-DEC-24	18-DEC-24	18-DEC-24	Category 1 Spill	K05-138	12/03/2024 15:22	12/03/2024 15:34	12/03/2024 09:00				See attached Spill Event Summary.	38.79748	-121.26768	Manhole			348	See attached Spill Event Summary.	Y	See attached Spill Event Summary.	62	0	See attached Spill Event Summary.	286	62	Other (specify below); Unpaved Surface	Pleasant Grove Creek	See Attached Spill Event Summary	Y	38.79806	-121.26861							12/03/2024 15:50	See Attached Spill Event Summary	See Attached Spill Event Summary	Other (specify below)	Project Plug was installed to stop construction debris from entering the Districts Collection System. Unauthorized discharge into the plugged mainline resulted in the spill.	Manhole		Concrete		7	See Attached Spill Event Summary	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		See Attached Spill Event Summary	Other (specify below)	A Notice of Violation was issued on December 5, 2024, for the spill.	A Notice of Violation was issued on December 5, 2024, for the spill.	See Attached Spill Event Summary	12/03/2024 19:04	See Attached Spill Event Summary	N			Pleasant Grove Creek	Stream/Creek		See Spill Event Summary	N/A	Other (specify below)	N/A	N/A	0	N	N												
5F	5SSO10750	Active	North of River Sanitary District #1 CS	North of River SD #1	897828	1.2	Certified	Richard St.Claire	Collections Supervisor		05-DEC-24	05-DEC-24	Monthly Category 3 Spill	106 Wilson Avenue	12/02/2024 09:30	12/02/2024 09:45	11/30/2024 19:30				Building basement - pictures attached	35.417	-119.021	Inside Building or Structure; Other (specify below)	Alley, street gutter, storm drain basin.	Approx 300 gal inside building	900	See attached.	Y	Storm water basin	0				200	Building or Structure; Drainage Conveyance System; Paved Surface		Approximately 300 gallons inside building basement, 200 gallons in alley and street/gutter and 400 in stormwater basin.	Y	35.417	-119.021							12/02/2024 12:30	Mini sump pump setting at minimum of 1gpm. Ran periodically over the course of three days for approximately 10 hours total.	Property owner informed me he started mini sump pump Saturday mid evening and ran periodically Sunday and Monday morning at minimum setting. 	Debris from Construction		Gravity Mainline		Vitrified Clay		74	Building damage: floor tile, baseboards, sub flooring and drywall. Children's toys.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Returned Portion of Spill to Sanitary Sewer System		Arrived on site within 15 minutes of notification. Deployed flusher truck and began flushing upstream to remove blockage. Hit blockage and could not advance. Deployed additional vacuum truck and removed all standing water from sewer line. Barricaded sewer water with cones and caution tape and used socks to prevent water from advancing into storm drain initially once onsite.	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer; Post Spill CCTV	Scheduled an emergency repair to remove concrete blockage on 12/9/24.	Scheduled an emergency repair to remove concrete blockage 12/9/24.		12/05/2024 10:29	Concrete was dumped into cleanout which filled sewer pipe and created blockage.		Continuing order of operations as usual daily flushing and videoing sewer system.	12/09/2024 15:33														No	Scheduled an emergency repair to remove concrete blockage 12/9/24.	Continuing order of operations as usual daily flushing and videoing sewer system.	Scheduled an emergency repair to remove concrete blockage 12/9/24.	Scheduled an emergency repair to remove concrete blockage 12/9/24.	No	Scheduled an emergency repair to remove concrete blockage 12/9/24.	Continuing order of operations as usual.	Continuing order of operations as usual daily flushing and videoing sewer system.	
4	4SSO10374	Active	Carson City CS	Carson City	897843	1.1	Certified	Eric Liu	Civil Engineer		19-DEC-24	19-DEC-24	Monthly Category 3 Spill	1761-0062 (764 E. Bonds Street, Carson, CA)	11/27/2024 16:31	11/27/2024 17:50	11/27/2024 16:27				CSMD Map Sheet No. 1761 MMS No. 9164653 Inside building of 764 E. Bonds Street, Carson, CA.	33.80509	-118.26082	Inside Building or Structure			75	The sewage spill backed up into the basement bathroom at 764 E. Bonds Street, Carson, CA. 	N						65	Building or Structure		The sewage spill backed up into the basement bathroom at 764 E. Bonds Street, Carson, CA. 	Y	33.80509	-118.26082							11/27/2024 20:20	Visual or Eyeball Method	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops.	Debris-General; Debris-Rags; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		95	Some property damage was reported at 764 E. Bonds Street, Carson, CA. 	N	Cleaned Up (specify below); Other (specify below); Other Enforcement Agency Notified; Restored Flow	Tested 14 Manholes for gases and all tested good. Waited for all sewage to deplete, left all mainlines down and running. 	A resident called to report a sewer backup. Upon the crew's arrival, they inspected manholes 51 and 38, which were found to be surcharged. The crew traced the blockage back to manhole 62. After several attempts using stick getters and hydro cleaning, the crew successfully cleared the blockage using a penetrator nozzle, hydro cleaning from manhole 62 to T/L.  Property damage was reported at 764 E. Bonds Street, with approximately 75 gallons of sewage backing up into the basement bathroom. George Hill claim forms were provided to the resident. All lines were left clear and running as deigned. All required agencies were notified. 	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause	 	It is recommended to create a 90-day hydro PM for Pacific St. from T/L to MH 36, and another 90-day Hydro PM for T/L to MH 64. 		11/27/2024 22:30	Inspected the sewer using CCTV and found medium levels of grease. 		N/A	12/04/2024 12:00														N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	897847	1.2	Certified	John J. Hough	San Dist. Superintendent	05-DEC-24	16-DEC-24	16-DEC-24	Category 1 Spill	352663	12/04/2024 08:20	12/04/2024 09:20	12/02/2024 08:00				See attached Spill Map with photos.	38.39517	-121.43415	Lateral Clean Out (Public)			336	See attached Spill Map with photos.	Y	See attached Spill Map with photos.	240	0	See attached Spill Map with photos.	90	335	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		See attached Spill Map with Photos.	Y	38.3952	-121.4341	38.39514	-121.43411	38.394556	-121.432107			12/04/2024 09:20	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Root Intrusion		Lower Lateral		Acrylonitr. Butadiene Styrene (ABS)		21	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified City of Elk Grove Department of Public Works and Sacramento County Environmental Management Department 	See Attached Description of Spill Event.	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		SacSewer inspected the lower lateral with CCTV on December 4, 2024. Based on the findings, SacSewer will repair the lower lateral.	SacSewer inspected the lower lateral with CCTV on December 4, 2024. Based on the findings, SacSewer will repair the lower lateral.	12/04/2024 18:30	See Attached Description of Spill Event	N			Franklin Creek	Stream/Creek		Spilled pooled at entry point to Franklin Creek by vegetation in waterway. Upstream and downstream of outfall was dry in waterway.	No observed impacts to aquatic life	Other (specify below)	No public access impacted.	N/A	0	N	N												
8	8SSO10543	Active	Beaumont City CS	Beaumont City	897856	1.2	Certified	Jerome Moledor	Wastewater collections supervisor	05-DEC-24	12-DEC-24	12-DEC-24	Category 1 Spill	Harmon Heights and Hagen Heights	12/04/2024 15:40	12/04/2024 15:57	12/04/2024 15:00	12/04/2024 17:17	24-6762		Spill location was a manhole to the West of the intersection of Harmon hts and Hagen hts.	33.96252	-117.0498	Manhole			100	Spill went form manhole approx. 50' East down Hagen then turned South approx. 500' to a storm brain intel	Y	Spill went from manhole to street then gutter plate and finally to a storm drain intel.	0	20	Outfall is to a wash that is shared with the housing tracks	0	80	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Spill went from manhole next to the intersection of Harmon HTS and Hagen HTS approx. 50' East to a gutter plate. It then went South approx. 500' to a storm drain inlet.	Y	33.96247	-117.04968	33.96103	-117.04932					12/04/2024 16:25	Spill was not constantly happening, but volume estimations were made by using overflow gauge simulation pictures at times of actual spilling.	Spill start time was estimated by adding time to first call and judging amount of spill on the street. Spill end time was when the line blockage was freed. 	Other (specify below); Vandalism (specify below)	Blue pool plaster put into sewer system 	Gravity Mainline		Polyvinyl Chloride (PVC)		19	Spill went from manhole to gutter plant to storm drain intel	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Arrived on site jetted blockage, cleaned up street and gutter then disinfection area with deluded chlorine.	Arrived on site jetted blockage, cleaned up street and gutter then disinfection area with deluded chlorine.	Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Post Spill CCTV	There are 4 houses on this line that have pools. Suspected address where pool plaster could have come from is 34992 Hagen Heights. CCTV inspection did not show 100% where it came from. 	More investigations on the 4 houses with pools. 	Working with building and permit departments 	12/05/2024 13:38	Spill cause was blue pool plaster put into sewer system.	Y	Narrow down which of the 4 house it could have been.	12/31/2024 13:40	N/A	Wash	Dry wash	N/A	None	Other (specify below)	None	N/A	0	N	N											Narrow down which of the 4 house it could have been.	
2	2SSO10127	Active	Delta Diablo SD CS	Delta Diablo	897860	1.4	Amended	Trevor Simpson	Maintenance Supervisor	05-DEC-24	19-DEC-24	19-DEC-24	Category 1 Spill	Shore Acres Pump Station located at 1725 Port Chicago Highway, Bay Point	12/02/2024 15:20	12/02/2024 15:20	11/05/2024 12:00	12/02/2024 16:44	24-6720	16-JAN-25	Spill resulted from a break in a 16-inch discharge forcemain approximately 120 feet east of District�s Shore Acres Pump Station entrance gate (38.043476, -121.977472) adjacent to marshland area on private property (Military Ocean Terminal Concord). The spill start date and time are still under investigation; the District will provide a more extensive report describing the circumstances in the upcoming 15- and 45-day reports, as appropriate, which will also inform the estimated spill volume noted in Section 8 below.	38.043476	-121.977472	Force Main; Gravity Mainline; Pump Station		There were two additional appearance points on December 4, 2024 from the Shore Acres Pump Station wet well and a gravity collection system manhole immediately upstream of the Shore Acres Pump Station as part of remedial response efforts. Both locations are within 200 feet of the forcemain break. Photographs showing the spill location(s) and surrounding area are attached.	20000000	Marshland area immediately adjacent to forcemain break location with potential for migration to Suisun Bay approximately 1,300 feet north of line break via a natural drainage channel located on marshland area. The District is collecting and analyzing samples from receiving waters as part of SSO response plan and performing visual observations. The District is assessing the extent of the spill boundaries. An aerial photograph showing the approximate location of the spill, natural drainage channel, and Suisun Bay is attached.	N	No, the District is not aware of the spill reaching stormwater and/or a constructed drainage conveyance systems. As noted above, the spill likely entered a natural drainage channel located on adjacent marshland area.			As noted above, the spill likely entered a natural drainage channel located on adjacent marshland area. The natural channel appears to discharge into Suisun Bay (38.047125, -121.977470). Photographs showing the discharge point and warning signage posted on the shoreline are attached.	20000000	0	Other (specify below); Surface Water; Unpaved Surface	In the vicinity of a natural drainage channel in a marshland area on private property owned by Military Ocean Terminal Concord.	See attachment - Certified Spill Report Question 1.b - Delta Diablo	Y	38.043476	-121.977472	38.047055	-121.977435					12/04/2024 17:30	See attachment - Certified Spill Report Questions 3 and 3.a - Delta Diablo	See attachment - Certified Spill Report Questions 3 and 3.a - Delta Diablo	Other (specify below); Pipe Structural Problem/Failure - Installation	Based on site investigations during emergency construction, the District has preliminarily determined the 16-inch forcemain (mortar-lined steel cylinder pipe) failed due to localized corrosion along a ~20-foot pipe section. This resulted in SSO conditions at the line break location ~5 feet below grade in an intermittently submerged area, which limited visual identification of SSO conditions at the pipe failure location. The District is engaging with a specialized engineering consultant to conduct a technical review of the forcemain failure mode, including root causes and contributing factors, and will make this information available to the Regional Water Board as part of future Spill Report submittals.	Force Main		Other (specify below)	Steel cylinder pipe (mortar lined) and fittings that met the requirements of AWWA C-303 (in 1978) and construction project specifications. See attachment - Certified Spill Report Question 6.a Attachment - Delta Diablo.	44	Based on preliminary field site observations, the District has not observed physical evidence of gross pollution (i.e., rags, debris) in the adjacent marshland area or in the natural flow channel. In addition, the District has not observed impacts to aquatic life, wildlife, or vegetation in the area. The District has hired a specialized consulting firm with specialty biologists and significant experience and expertise in identifying site impacts and remedial response plans. The District has been working to identify and comply with site access requirements in coordination with CA Department of Fish and Wildlife (CDFW) and the private property owner (Military Ocean Terminal Concord) so the consultant can conduct a site assessment during low-tide conditions (tentatively expected to be completed by December 24, 2024). The District will report site investigation findings and the recommended remedial response plan as part of future Spill Report submittals to the Regional Water Board.	N	Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow		See attachment - Certified Spill Report Question 9.b - Delta Diablo 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect	See attachment - Certified Spill Report Question 10.a - Delta Diablo 	The District is engaging with a specialized engineering consultant to conduct a technical review of the forcemain failure mode, including root causes and contributing factors. A comprehensive, internal review of operational conditions is also occurring. As a result of both these reviews, the District will identify any appropriate corrective and preventive actions to effectively reduce, eliminate, and/or prevent the potential for a recurrence of the SSO event. The information from both of these efforts will be reported to the Regional Water Board as part of future Spill Report submittals. 	See attached - Certified Spill Report Question 10.c - Delta Diablo 	12/04/2024 17:30	Based on site investigations during emergency construction, the District has preliminarily determined the 16-inch forcemain (mortar-lined steel cylinder pipe) failed due to localized corrosion along a ~20-foot pipe section. This resulted in SSO conditions at the line break location ~5 feet below grade in an intermittently submerged area, which limited visual identification of SSO conditions at the pipe failure location. The District is engaging with an engineering consultant to conduct a technical review of the forcemain failure mode, including root causes and contributing factors, and will make this information available to the Regional Water Board as part of future Spill Report submittals.  The District is also conducting a comprehensive, internal review of the operational conditions that existed, and may have contributed to the delay in identifying the SSO event. This information will be reported to the Regional Water Board as part of future Spill Report submittals.	Y	The District is conducting multiple comprehensive reviews to identify the spill boundaries, any further spill response, SSO cause, operational and/or infrastructure limitations, and recommended corrective action(s). The District will continue undertaking corrective and preventative actions, as appropriate. 	03/05/2025 12:00	Unnamed natural drainage channel in a marshland area leading to Suisun Bay on private property 	Estuary; Other (specify below)	Natural drainage channel in a marshland area on private property	Suisun Bay is a shallow tidal estuary. It lies at the confluence of the Sacramento River and San Joaquin River. To the west, Suisun Bay is drained by the Carquinez Strait, which connects to San Pablo Bay, a northern extension of San Francisco Bay.	See attachment - Certified Spill Report Question 15.a - Delta Diablo 	Other (specify below)	The SSO occurred on private property owned to Military Ocean Terminal Concord. The District posted warning signs at the edge of the marshland area and Suisun Bay receiving waters, and notified the private marina located one mile to the east. There are no public beaches, access conditions, or uses near the SSO location on private property.	N/A (no public usage nearby)	0	N	Y	Refer to map - Certified Spill Report Question 17.a Attachment - Delta Diablo	Samples were analyzed for dissolved oxygen, temperature, pH, conductivity, ammonia-nitrogen, total coliform, fecal coliform, enterococci (Enterolert)									The District is conducting multiple comprehensive reviews to identify the spill boundaries, any further spill response, SSO cause, operational and/or infrastructure limitations, and recommended corrective action(s). The District will continue undertaking corrective and preventative actions, as appropriate. 	
2	2SSO10179	Active	San Jose City CS	San Jose City	897864	1.2	Certified	Ben Nguyen	Senior Engineer	06-DEC-24	17-DEC-24	17-DEC-24	Category 1 Spill	2065 Los Gatos Almaden rd San Jose CA 95124	12/03/2024 10:41	12/03/2024 11:00	11/30/2024 17:00	12/03/2024 12:16	24-6735	16-JAN-25	The location of the spill was a private manhole in the back lot of the 2065 Los Gatos Almaden Road, San Jose CA 95124.  The lot was adjacent to the Ross Creek. 	37.24453	-121.93371	Manhole			75570	The spill discharged from a private manhole and traveled across the trail into the Ross Creek.	N				The sewage reached Ross Creek while discharging from the private sanitary manhole. The location of the sanitary manhole is at the back lot of the property at 2065 Los Gatos Almaden Road and traveled across the trail into Ross Creek at  approximate location at 37.244805752207405, -121.9335645459159. 	75570	247	Surface Water; Unpaved Surface		The spill discharged from the private manhole in the back of the property a 2065 Los Gatos Almaden Rd San Jose CA 95124.  The location of the MH was next to the property line between the lot and the Ross Creek.  Water flowed across the bank of the creek and into the creek. 	Y	37.24456	-121.93376	37.24502	-121.93323	37.24446	-121.93405			12/03/2024 11:50	The spill volume was estimated based on the duration flow rate method, and measurements of area on the unpaved bank/maintenance path of the creek.  Start time was estimated based on information provided by Valley Water staff from the online public access database.  The report was made in the Valley Water data based on Sun 12/1 which the RP noticed the creek erosion Sat 11/30.  	The overflow rate was used as a baseline to estimate flow rates at different times of the day using a typical residential diurnal flow pattern; with start time was assumed on Sat 11/30 (per Valley Water's information) and end time on Tue 12/3 when City's crews cleared the plug.  	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		68	No impact was observed since the creek bed was dry and most of the water percolated to the bottom of the creek.  	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow	City's crew scraped of some surface soil from the bank of the creek and disposed property.  	Upon arrival crew recognized that water already flowed across the bank and entered the creek. The creek was dry without flowing water at the time.  Valley water staff was also on site responding to the event. Crew started to look for and found the plug segment which located on the other side of the creek and was in an easement.  Crew cleared the plug and noticed grease was in the system.  Crew confirmed with ammonia test that sewer did enter the creek.  The crew notified appropriate agencies, and document the event.  Crew did not attempt to enter the creek to remove the sewage since it would require proper permit from Valley Water.  Water percolated to the ground when crew attempted to remove water from Union Ave bridge one day later.  Staff also attempted to collect water for sampling at 5AM the next day, but water already soaked to the bottom of the creek. Valley water staff placed a sandbag berm in the creek between the spill location and Union Ave bridge. 	Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Post Spill CCTV	Crew informed the property owner and placed yellow caution tape around the MH area in the back of the property.  Crew also place raw sewage warning signs on the bank of the creek.   	CCTV inspection was performed after the spill. Segment will be inspected with CCTV in 1 month to assess the condition Revise cleaning cycle after the CCTV Coordinate with Valley Water for additional SSO start time and activities performed by Valley Water staff.  City staff will discuss future communication improvement between watershed management team and SSO responding team.  	City staff will prepare the SSO Technical Report and submit to the Water Board by 01/17/2025 via CWIQS.  	12/03/2024 16:00	Staff evaluated the information from Valley Water staff, City's SSO responding team, watershed management team and illegal discharge inspection team.  Staff reviewed pic/video, notes, and information from the first responder.  The CCTV inspection results showed the plug segment as in good condition; and the spill was likely to be caused by grease.  	N		12/11/2024 15:30	Ross Creek	Stream/Creek		The Ross Creek joins the Guadalupe River, which mainstem is an urban, northward flowing 14 miles river in California whose much longer headwater creeks originate in the Santa Cruz Mountains. The river mainstem now begins on the Santa Clara Valley floor when Los Alamitos Creek exits Lake Almaden and joins Guadalupe Creek just downstream of Coleman Road in San Jose, California. From here it flows north through San Jose, where it receives Los Gatos Creek, a major tributary. The Guadalupe River serves as the eastern boundary of the City of Santa Clara and the western boundary of Alviso, and after coursing through San Jos�, it empties into south San Francisco Bay at the Alviso Slough.	No impact observed due to dry creek bed	Restricted Public Access		Valley Water	0	N	N												
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	897865	1.1	Certified	Kent Vian	Asst. Deputy Director		28-JAN-25	28-JAN-25	Monthly Category 3 Spill	NOT-40201181836- 3202 DUKE ST.	12/04/2024 08:49	12/04/2024 09:11	12/04/2024 08:45				THE SPILL ORIGINATED FROM MANHOLE#170 EQ#10165970 TRAVELED DOWN SOUTHEASTBOUND INTO THE STORM DRAIN. GPS COORDINATES ARE 32.75375-117.21789.	32.75375	-117.21789	Gravity Mainline; Manhole	N/A	N/A	570	THE SPILL BOUNDARIES ARE THE DRIVEWAY, SIDEWALK, CURB, AND INTO THE STORM DRAIN.	Y	THE STORM DRAIN SYSTEM WHERE THE SPILL TRAVELED IS A 48  DIAMETER  CONCRETE PIPE.	520				520	Drainage Conveyance System; Street/Curb and Gutter (2 3)	N/A	THE SPILL TRAVELED DOWN A DRIVEWAY SOUTHEASTBOUND ON THE SIDEWALK TO THE CURB AND INTO THE STORM DRAIN. GPS COORDINATES ARE 32.75375-117.21789.	Y	32.75375	-117.21789							12/04/2024 11:30	THE ESTIMATION IS CALCULATED BY VISUAL METHOD.	THE SPILL START TIME IS WHEN THE DISPATCH RECEIVES THE CALL FROM CONSUMER REPORTING THE SPILL.	Fats, Oil and Grease (FOG)	N/A	Gravity Mainline; Manhole	N/A	Vitrified Clay	N/A	37	THE IMPACT WAS TO THE DRIVEWAY, SIDEWALK, CURB, AND STORM DRAIN.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	CREWS RESPONDED, INVESTIGATED, RELIEVED, TRACKED DOWN THE FINAL DESTINATION, AND RETURNED THE SEWER BACK INTO THE SYSTEM AND WASHDOWN AREA.	Enforcement action against Fats, Oil, and Grease (FOG) source	N/A	CREWS LEFT DOOR HANGERS REFERED TO IN HOUSE FEWD SECTION AND CHANGED SCHEDULE TO 12 MONTH FREQUENCY.		12/04/2024 11:30	THE CAUSE WAS GREASE IN THE MAIN		N/A.	12/06/2024 11:57														NONE.	 CHANGED SCHEDULE TO 12 MONTH FREQUENCY.	YES	NOT AT THIS TIME.	NOT AT THIS TIME.	NOT AT THIS TIME.	SEE ATTACHED UNDER SPILL DOCS	N/A.	N/A.	
2	2SSO10184	Active	San Rafael SD CS	San Rafael Sanitation District	897867	1.3	Certified	Philip Buckley	Principal Civil Engineer		06-DEC-24	06-DEC-24	Monthly Category 3 Spill	3 Broadview	11/30/2024 13:04	11/30/2024 13:43	11/28/2024 09:30				Property owner googled Roto-Rooter and called the corporate office in Los Angeles to notify them of city sewer structure overflowing.  Roto-Rooter told them they do not maintain city structures.  2 days later  the property owner called City of San Rafael DPW regarding the spill.  DPW notified our standby personnel. 	37.9756315236	-122.51164436	Other Sewer System Structure	Rod hole R178		460	Spill entered landscaping in backyard of 3 Broadview and area between neighbors fence at 7 Broadview.	N						0	Unpaved Surface		Spill entered landscaping in backyard of 3 Broadview and area between neighbors fence at 7 Broadview.		37.975634	-122.511644	37.975635	-122.511697	37.975545	-122.511855	37.975586	-122.511677	11/30/2024 14:15	Upstream lateral connections.  There are 2 laterals upstream of where the blockage occurred.  	We calculated the total time of spill to be 2,085 minutes and use the average daily usage for a single family home of 140 gallons a day for homes in our District.	Pipe Structural Problem/Failure - Controls; Root Intrusion		Gravity Mainline		Polyvinyl Chloride (PVC)	High Density Polyethylene	7	No observed impact.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow		removed solids and disinfected area	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		unknown at this time		11/30/2024 15:40	This pipe was replaced in 2017.  CCTV footage showed a separation between the rod hole connection and the main.		NO	11/30/2024 15:40														Not Applicable	added pipe to preventative maintenance list utile we can get this location repaired	Yes	yes	has not happened yet	spot repair	see attachment	none	NO	
5R	5SSO10827	Active	Lake Oroville Area PUD CS	Lake Oroville Area Public Utility District	897873	1.2	Certified	David Goyer	General Manager	08-DEC-24	12-DEC-24	12-DEC-24	Category 1 Spill	184 Kokanee Dr. Oroville Ca 95966	12/07/2024 16:45	12/07/2024 17:15	12/07/2024 09:00	12/08/2024 09:45	24-6830		Vacant lot 184 Kokanee Dr. Manhole Z10E was vandalized sometime in the past 72-96 hours. An unknown person or persons removed the manhole cover and knocked debris into the mainline including large rocks that created the blockage.	39.52745	-121.46276	Gravity Mainline		Odors and visible paper products in the storm drain. 	3000	Pictures attached. The spill extended from Manhole Z10E westerly approximately 550'. Due to the overgrown vegetation in the open ditch storm drain it appears no solids reached the lake surface waters. 	Y	Storm Drainage,Open ditch, with a very large amount of overgrown vegetation. Pictures attached.	1000	100	Pictures attached. manhole cover removed by unknown persons, up stream and uphill from the manhole. 	3000	1000	Drainage Conveyance System that discharges to surface water; Unpaved Surface	Open storm drain ditch that discharges directly into Lake Oroville.	Vacant lot 184 Kokanee Dr. Manhole Z10E was vandalized sometime in the past 72-96 hours. An unknown person or persons removed the manhole cover and knocked debris into the mainline including large rocks that created the blockage. The spill proceeded downhill to the east approximately 600' via the open storm drainage ditch to Lake Oroville. No solids were located near the waters edge and its reasonable to assume that only liquids reached the surface waters.  	Y	39.52745	-121.46276	39.52683	-121.46081					12/11/2024 16:00	Unknown start date or time. We looked at the amount of EDU's and connections for manhole Z10E and relied on the neighborhood reports that they first noticed an odor 72 hours before we received a report. 	Z line EUD's and connections. the flow was slow and minimal considering the time of the report. The report was received at 4:45, onsite at 5:05pm system cleared by 6:30 pm. 	Vandalism (specify below)		Gravity Mainline	No failure of the system. Vandalism caused this spill.	Polyvinyl Chloride (PVC)		15	odors, and a visual blight.  	N	Cleaned Up (specify below); Returned Portion of Spill to Sanitary Sewer System		The cleanup consisted of 4 man crew from the District, District equipment including, 12 yard Vac Truck, Jet rodder Truck, Pump Truck  2000 gal , Field Supervisors pickup, General Managers pickup, Camera van and CCTV camera system. We also employed a crew of 5 men and a vac truck for labor and extra help. The storm drainage was temporarily obstructed with sand bags to be enable the cleanup the effected area. Using potable water and a vacuum truck, shovels, rakes and bagging debris to be hauled off and disposed of correctly. No chemicals have been utilized during the cleanup.	Other (specify below)	Consider installing locking cover for manholes that are in areas hidden from public view.	Consider installing locking cover for manholes that are in areas hidden from public view. Remove vegetation blocking this location. 	Continue with the Sewer master plan and include locations within the system that could benefit from possible locking covers or other improvements to avoid other possible incidents. Update and include current contacts for the State Parks Department. 	12/11/2024 13:44	On 12/7/24 4:45pm General Manager was made aware of a possible SSO in the area of the Bidwell Canyon Dr.  White Gates . At approximately 5:00pm a blockage was located downstream of manhole Z10E at that time a full response was requested. it was noted that the manhole cover had been removed and located uphill and up stream of the manhole. At approximately 5:45pm call out crew was on site with the 12 yd Vac Truck equipped with a jetting capabilities. By 6:30pm the blockage was cleared. with the manhole cover replace. The operator of the vac truck noted that he witnessed a large amount of rocks including large rocks inside the system when the obstruction had been cleared.	Y	We want to locate anyone responsible for this. We also would like to have a list of similar locations within our system to be proactive and possibly avoid this in the future. 	01/31/2025 14:02	Lake Oroville 	Lake		Lake Oroville	No impact has been observed at this time.	Temporary Restricted Use	The trails had temporary noticed posted. They have been removed at this time.	None required	3	N	N											We want to locate anyone responsible for this. We also would like to have a list of similar locations within our system to be proactive and possibly avoid this in the future. 	
2	2SSO10159	Active	Napa Sd CS	Napa Sanitation District	897875	1.3	Certified	Seth Rossi	Collection System Manager	09-DEC-24	09-DEC-24	09-DEC-24	Category 2 Spill	Montoya Alley Napa CA 94558	12/04/2024 09:09	12/04/2024 09:25	12/04/2024 03:30				Montoya Alley is a mostly unpaved alley that contains a Sanitary Sewer System. Sewer laterals from businesses on Jefferson St flow to the sewer main in the alley. There is a Manhole near the end of the alley where the spill appearance point originated.  	38.31461	-122.29677	Manhole			1568	The spill originated from a manhole and spread North and South through the alley covering 205' total causing puddles throughout the effected dirt. 	N						968	Unpaved Surface		Montoya Alley is a mostly unpaved alley that contains a Sanitary Sewer System. Sewer laterals from businesses on Jefferson St flow to the sewer main in the alley. There is a Manhole near the end of the alley where the spill appearance point originated.  The spill spread 205' total in the North and South directions of the alley. 	Y	38.31461	-122.29677							12/04/2024 09:48	Total length and width of the spill were measured out using a measuring wheel, then depths were taken of the puddles and contaminated dirt. Then using the Area Volume Method calculations were made.	Spill was active upon crews' arrival and using the SSCSC Manhole Overflow Gauge the crew estimated the flow to be approximately 5gpm. After getting a total calculation of spill, using the Area Volume Method, the 5gpm was applied to the 1,568 gallon total.  	Fats, Oil and Grease (FOG)		Gravity Mainline		Other (specify below)	Cured In Place Pipe. 	9	The spill spread 205' total in the North and South directions of the alley causing large puddles of sewage throughout effected dirt area. 	N	Cleaned Up (specify below); Restored Flow		Crew was dispatched with large combination truck to restore flow and vacuum sewage for removal throughout alley. Hydrated lime was then spread throughout the contaminated dirt, and sewage was hauled away. CCTV truck was then dispatched to TV the gravity main where failure occurred.  	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Mainline was inspected using CCTV truck and discovered grease was the cause of the failure. PM schedule was adjusted to increase frequency of cleaning. Inspectors were sent out to test grease output of restaurants flowing to mainline. 	Not available at this time. 	12/04/2024 12:45	Mainline was inspected using CCTV truck and discovered grease was the cause of the failure. Inspectors were sent out to test grease output of restaurants flowing to mainline. 	N												Y													
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	897877	1.2	Certified	David Leamer	Assistant Superintendent		24-DEC-24	24-DEC-24	Monthly Category 3 Spill	351308	11/04/2024 11:35	11/04/2024 12:14	11/04/2024 11:30				See Attached Spill map with Photos.	38.58018	-121.37571	Lateral Clean Out (Private); Lateral Clean Out (Public)	District CO and Private CO From 831 La Goleta Way and District CO from 801 La Goleta Way	District CO and Private CO From 831 La Goleta Way and District CO from 801 La Goleta Way	167	See Attached Spill Map with Photos	N	See Attached Spill map with Photos.	0				124	Unpaved Surface		See attached Spill Map with Photos.	Y	38.58018	-121.37571							11/04/2024 12:14	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Operator Error (specify below)	Easement cart burped Cleanouts while performing PM work.	Gravity Mainline		Vitrified Clay		79	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		cleaned up and recovered all recoverable spill.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		SacSewer inspected mainline with CCTV on 12/2/24. Based on findings, SacSewer increased preventative cleaning frequency to 6 months from 12 months.		11/04/2024 15:15	SacSewer Hydro Easement cart burped CO while performing PM work.  The reason for the amount of spill was because operator felt the nozzle was getting heavy roots, so he was working back and forward with flailer nozzle to remove heavy roots at the end of the line where caused the first CO to spill and staring of the line as well when the second CO spill.		None	11/04/2024 15:15														N/A	SacSewer increased preventive cleaning frequency from 12 months to 6 months.	SacSewer increased preventive cleaning frequency from 12 months to 6 months.	N/A	SacSewer inspected mainline with CCTV on 12/2/24.	N/A	SacSewer increased preventive maintenance frequency on 12/3/24.	N/A	None	
2	2SSO10115	Active	South San Francisco City CS	South San Francisco City	897891	1.3	Certified	David A. Bockhaus	Deputy Director of Public Works	09-DEC-24	18-DEC-24	18-DEC-24	Category 1 Spill	Buri Buri Park	12/04/2024 07:13	12/04/2024 07:31	12/04/2024 07:13	12/04/2024 11:16	24-6755	18-DEC-24	Sewer spill originated from a roughly 24  sewer manhole located behind the bleachers in the back of Buri Buri Park and traveled down the gutter into the storm conveyance system in the park which then entered the storm main on Westborough Blvd.	37.651521	122.442311	Gravity Mainline; Manhole			527	Spill came out of the three 7/8  pickholes and the spill travelled down the manhole ring into the gutter which ended at the storm drain at the bottom of the hill. The storm drain flows into the 60  storm main on Westborough that has constant flow from the neighborhood district above. 	Y	90  concrete storm pipe	0	0	Discharge point into surface water was from the 60  storm concrete pipe that drains into Colma Creek.	527	0	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Surface Water		The spill destination was the Colma Creek after it travelled down the concrete gutter in the park then into the storm catch basin where it dropped into the 90  storm main on Westborough that takes all of the water flow from the Westborough district and flows into the Colma Creek.	Y	37.655359	-122.430377							12/04/2024 07:47	The spill volume estimation was found using the Duration/flow rate formula to find the flow out of the 7/8  pick holes and using the S.M.A.R.T workbook to calculate the total gallons that came out of the manhole.	The spill volume was calculated by inputting the data collected at the spill into the Duration/Flow Rate formula and also using the measure volume formula to find the total gallons spilled during this event.	Root Intrusion		Gravity Mainline; Manhole		Vitrified Clay		65	The spill exited out of the pick holes in the manhole (wG1383) and flowed down the concrete gutter about 149' into the park catch basin which flows into the 90  concrete storm main line that eventually flows into the Colma Creek roughly 3,325FT away.	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow		Arrived at the scene of the spill and took pictures and measurements of the initial spill. The Jet truck was then used to break the blockage and the end time of the spill was recorded. The spill location was sanitized and washed down.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Corrective actions planned to reduce to possibility for the spill to occur again are that the segments have been added to the quarterly flushing schedule as well as a sewer check periodically in between flushing intervals 	Continuous 	12/04/2024 07:47	Sewer main line was investigated using CCTV and root intrusion was found in the segment of pipe where the blockage occurred.	N			Colma Creek	Stream/Creek		Colma Creek is a large concrete water conveyance system that allows water to flow to and from the bay.	N/A	Other (specify below)	No public access restriction 	No Closure 	0	N	Y	4 Eucalyptus Ave, South San Francisco, CA 94080	Ammonia										
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	897658	2.1	Certified	Daniel Whitlock	Manager	25-NOV-24	20-DEC-24	20-DEC-24	Category 2 Spill	Crescent and Alemany	11/22/2024 14:28	11/22/2024 14:35	11/22/2024 16:25				Overflow at Alemany and Crescent from manhole N-343230.	37.73395	-122.41243	Gravity Mainline; Manhole			830000	Overflow at Alemany and Crescent from manhole N-343230.	N						830000	Paved Surface; Street/Curb and Gutter (2 3)		Intersection of Alemany and Crescent from manhole N-343230. Although when crews arrived there was no evidence of spill.	Y	37.7347	-122.41183							11/22/2024 16:45	H&H Hydraulics	H&H Hydraulics ran model using asset N-217313.	Surcharged Pipe (Combined Collection System Only)	Heavy storm caused rain to exceed capacity of sewer	Gravity Mainline		Vitrified Clay		184	None. Signs were posted and roads remained open.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below)	Returned all spill to combined sewer	Signage posted on barricades so pedestrians could avoid contact of spill. Upon arrival of spill location, there was no evidence of a spill.	Other (specify below)	N/A Spill was caused by rain exceeding capacity.	N/A Spill was caused by rain exceeding capacity.	11/22/2024 16:25: Spill starts 11/22/2024 16:45: Spill Ends 11/22/2024: 14:45: Cleanup starts 11/23/2024 10:47: Cleanup ends	12/05/2024 13:40	Heavy storm caused rain to exceed capacity of sewer.  We started first receiving our high high notifications at 14:28 and our field crews responded at 14:35. Upon arrivals they discovered no signs of a spill but proceeded to clean and wash down the area. Our hydraulics model showed that there was flooding starting at 16:25 and ending at 16:45. Our crews were sent to the area the next morning to clean the area once again.	N												N													
9	9SSO10662	Active	County of San Diego CS	San Diego County Dept of Public Works	897905	1.1	Certified	Anthony Hooper	LUEG Program Manager		13-DEC-24	13-DEC-24	Category 1 Spill	1990 Arnold Way	12/08/2024 08:50	12/08/2024 10:00	12/08/2024 10:46	12/08/2024 12:00	24-6832		Gravity sewer manhole located in the street at 1990 Arnold Way, Alpine CA 91901	32.83621	-116.77244	Manhole			5700	Spill appeared at a manhole located on a paved surface and traveled approximately 560' along the curbline to a curb inlet located on the north side of the street. The inlet allows water to flow directly into the unlined dirt channel known as Alpine creek. 	Y	Drainage conveyance system is an unlined dirt channel labeled as Alpine Creek. The channel was dry at the time of the spill.	1200	4500	Curb inlet located on the north side of Arnold Way that discharges into Alpine Creek. Alpine Creek is a dirt channel that was dry at the time of the spill.	4500	1200	Surface Water		Alpine Creek, dry dirt channel just North of Arnold Way	Y	32.83573	-116.77421	32.83538	-116.7757					12/08/2024 10:40	Duration of spill multiplied by estimated flow rate. Flow rate was determined by using the SSCSC Manhole Overflow Gauge	Spill start time estimated by initial call time. Spill end time was observed by operator on the scene.	Debris-Rags		Gravity Mainline		Concrete		55	Minimal impact to community and surrounding areas. Uncaptured spill percolated and absorbed into the unlined dirt channel.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Contained spill upon operator arrival. Vacuumed portion of spill and washed down spill area, collected available spill and wash down water, returning all water collected to sanitary sewer system. Disinfected and sanitized spill area. Perform CCTV inspection of affected gravity main and adjacent gravity mains to determine if additional corrective action is needed. Notified OES and SDRWQCB. 	Adjusted Schedule/Method of Preventive Maintenance; Post Spill CCTV		Determined rags were the cause of the spill. Gravity sewer mains are in good condition and current cleaning schedule is adequate to prevent reoccurrence. 	All corrective action has been completed.	12/10/2024 11:31	Blockage was determined to be rags by trapping debris in downstream manhole during cleaning process. CCTV crews dispatched during the work week following spill occurrence. Crews found no evidence of offsets or roots in the gravity main where the blockage occurred that would lead to collection of ragging. 	N			Alpine Creek	Stream/Creek		Dry creek bed, unlined dirt channel	No aquatic life observed due to this being a dry creek bed.	Other (specify below)	Alpine creek does not have public access.	County of San Diego DEHQ	0	N	N												
5S	5SSO11001	Active	Modesto CS	Modesto City	897910	1.1	Certified	Robert Englent	Wastewater Collection System Superintendent		19-DEC-24	19-DEC-24	Monthly Category 3 Spill	South Carpenter Rd. Bridge Bypass	11/07/2024 06:33	11/07/2024 06:45	11/07/2024 06:24				LOCATION: From the South West corner of S. Carpenter Rd. and Robertson Rd. Go South for 1112 ft. and then from the West edge of South bound S. Carpenter Rd. go West for 90 ft.  See Attachments. 	37.61007	-121.0309	Other (specify below)	Bypass pump (ARV) air relief valve.	Gate valve for 4 inch line.	407	Map of sewer spill location. See Attachments	N						407	Unpaved Surface		Map of Sewer Spill Location.  See Attachment. 	Y	37.60977	-121.03064	37.60951	-121.03064	37.60977	-121.03071	37.61005	-121.0309	11/07/2024 06:37	ECS took measurements of the affected soil area and documented the spill with photographs to capture the extent of the contamination. The Orange County Saturated Soil Method was used from the Sewer Spill Estimation Guide. See Attachments	Contractors working on the West Trunk Rehabilitation Project were on site to give the spill start and end times. See Attachment	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure; Construction Diversion Failure		Air Relief Valve (ARV)/ Blow-Off Valve (BOV); Other (specify below)	Gate valve	Other (specify below)	HDPE	5	Soil in the immediate vicinity had to be removed. See Attachment	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow	The dirt was removed with a vac truck and the affected area was sprayed with bleach.	ECS confirmed that the spill was contained within the soil.  ECS took measurements of the affected soil area and documented the spill with photographs to capture the extent of the contamination. ECS provided the contractor, SAK, and subcontractor, MPS, with instruction on the acceptable cleaning and remediation procedures for the affected soil.  See Attachment	Other (specify below); Repaired Facilities or Replaced Defect	55 gallon drums have been placed at each ARV in case of leaks. 4 inch line and valve were removed from the system.	 It was determined that additional containment measures were required. As a result, 55-gallon drums were added to each air relief valve along the trunk bypass to capture any further leaks or discharges before they can reach the soil or bodies of water.  The 4 inch line and gate valve was removed from the system. 		11/07/2024 15:31	ARV failure due to additional 4 inch line tied in at same location. 		N/A	11/07/2024 17:00														N/A	Spill containment at ARV locations. 	N/A	N/A	The 4 inch line and gate valve was removed from the system.  	N/A	See Attachment: Contractor Incident Report. 	N/A	N/A	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	897911	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	10-DEC-24	19-DEC-24	19-DEC-24	Category 1 Spill	46th Avenue & East 12th Street, Oakland Ca	12/07/2024 13:28	12/07/2024 13:42	12/07/2024 13:25				Manhole overflowing in the street at the intersection.	37.76996	-122.21342	Manhole			384	Manhole overflowing in the street at the intersection. The sewage was flowing to the curb and gutter, and flowing downstream to the nearest storm drain.	Y	18  storm drainpipe that flows downstream to tidal waters creek named 54th Avenue, Peralta, Courtland, and Seminary creeks.	0	259	18  storm drainpipe that flows downstream to tidal waters creek named 54th Avenue, Peralta, Courtland, and Seminary creeks.	259	125	Drainage Conveyance System; Street/Curb and Gutter (2 3)		Manhole overflowing in the street at the intersection.	Y	37.76996	-122.21342							12/07/2024 15:54	.75 Ventholes = 72 gpm. .72 gpm x 6 holes = 4.32 gpm. 4.32 gpm x 89 min = 384-gal total spill. Recovered from street curb & gutter. 419' L x 1 x .04 D' x 7.48-gal 125 gal recovered. Unrecoverable from storm inlet: 384 - 125 = 259 gallons.	Start time was based on eyewitness account. End time was based on when responding crew cleared the blockage.	Debris-Rags; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		125	Manhole overflowing in the street at the intersection. Two and fifty-nine gallons spilled into a storm inlet leading to 54th Avenue, Seminary, Peralta Creek	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Sewer washed down street curb and gutter area.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		CCTV inspection caused grease and rags to have been the cause of the overflow.	Sewer main was added to the six-month high frequency maintenance program.	12/07/2024 21:00	CCTV inspection caused grease and rags to have been the cause of the overflow.	N			14th Avenue, San Antonio creek to Estuary.	Stream/Creek		Stream/Creek	None.	Other (specify below)	None.	N/A	0	N	N												
3	3SSO10334	Active	Seaside Co Sd CS	Seaside CSD	897930	1.3	Certified	Thomas Korman	District Engineer		18-DEC-24	18-DEC-24	Category 2 Spill	440 Harcourt PD Station	12/08/2024 13:34	12/08/2024 14:10	12/08/2024 13:00				Photographs show effected areas inside of the police station.	36.603569	-121.85355	Inside Building or Structure			1200	Photos show the extents of the spill inside the PD station	N						1200	Building or Structure		The spill was contained to the City Hall basement and PD Station.	Y	36.603569	-121.85355							12/08/2024 14:40	Flow rate observed from multiple floor drains. Average flow rate estimated by eye comparison.	average estimated flow rate x duration of spill = total volume. 15 gpm x 80 minutes = 1200 gallons	Debris from Construction; Debris-Rags; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		70	Flooring materials, base boards, walls, and items on floor contaminated.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Restored flow to the main line. returned to sewer system. effected areas disinfected or contaminated materials removed.	Adjusted Schedule/Method of Preventive Maintenance; Post Spill CCTV		Staff are performing field visits on FSEs and FOG producers upstream of the clog location. CCTV will also be performed to verify the condition of this segment of sewer. Root intrusion from abandoned lateral found on CCTV. Roots to be trimmed. Location added to root treatment list and grease list.	Investigation under way. Expected completion by 12/20/24. Removal of contaminated materials by 12/20/24. Reconstruction by 1/15/25.	12/08/2024 23:00	During jetting the main line to clear the blockage, a large amount of FOG was observed in the line. Additionally, a build up of rags and possible construction debris was observed. During CCTV, a root intrusion was found which likely contributed to the spill.	N	Cause of blockage found.	12/20/2024 17:08										N												Cause of blockage found.	
5S	5SSO10893	Active	City Of Folsom CS	Folsom City - Environmental & Water Resources Dept	897936	1.3	Certified	Marcus Yasutake	Environmental & Water Resources Director	11-DEC-24	17-DEC-24	17-DEC-24	Category 1 Spill	Roberts Road and Inwood Road	12/09/2024 11:35	12/09/2024 12:05	12/09/2024 11:15	12/09/2024 13:19	24-6852	11-DEC-24	The spill traveled from the overflowing manhole (SS-B01-3-40154) and pooled within the intersection of Roberts Road and Inwood Road. The spill then traveled along the Northern side of the road and then traveled West down Inwood Road. The spill then pooled in the road in front of 9865 Inwood Road. The spill then traveled down a grassy hill into a creek, which is an unnamed surface tributary to Hinkle Creek.	38.70104	-121.17884	Manhole			6625	The spill traveled approximately 200 feet from the overflowing manhole (SS-B01-3-40154) and pooled within the intersection of Roberts Road and Inwood Road. The spill then traveled along the Northern side of the road consisting of paved and unpaved surfaces, including rocks and vegetation traveled West down Inwood Road. The spill then pooled in the road in front of 9865 Inwood Road. The spill then traveled down a grassy hill into a creek, which is an unnamed surface tributary to Hinkle Creek.	N				The spill traveled approximately 200 feet from the overflowing manhole (SS-B01-3-40154) and pooled within the intersection of Roberts Road and Inwood Road. The spill then traveled along the Northern side of the road consisting of paved and unpaved surfaces, including rocks and vegetation traveled West down Inwood Road. The spill then pooled in the road in front of 9865 Inwood Road. The spill then traveled down a grassy hill into a creek, which is an unnamed surface tributary to Hinkle Creek.	6400	200	Other (specify below); Paved Surface; Surface Water; Unpaved Surface	An unnamed surface tributary to Hinkle Creek	The spill traveled from the overflowing manhole (SS-B01-3-40154, Latitude: 38� 42' 3.74 , Longitude: 121� 10' 43.81 ) and pooled in a triangular footprint (28' x 40', approximately 1/4  in depth) within the intersection of Roberts Road and Inwood Road. The spill then traveled West along the Northern side of the road (approximately 140 feet long, 1 foot wide and 1/2  inch deep). The spill then pooled in the road in a rectangular footprint (12' x 39', approximately 1/4  in depth, Latitude: 38� 42' 4.05 , Longitude: 121� 10' 45.54 ) in front of 9865 Inwood Road. The spill then traveled down a grassy hill approximately 50 feet long and 6 inches wide into a creek (Latitude: 38� 42' 4.36 , Longitude: 121� 10' 45.88 ), which is an unnamed surface tributary to Hinkle Creek.	Y	38.70104	-121.17884	38.70113	-121.17932	38.70121	-121.17941			12/09/2024 12:08	For the Duration and Flow Rate Comparison Method, staff estimated that the spill was discharging from the manhole at a rate of 125 gallons per minute (gpm) from 11:15 am time to 12:08 pm time for a total of 53 minutes and a total spill volume of 6,625 gallons.  The Area Volume Method was used to determine recovered volume of the spill (approximately 200 gallons). Area 1: pooled in a triangular footprint of 87 gallons (28'x40', 1/4  depth), Area 2: pooled in a rectangular footprint of 73 gallons (12'x39', 1/4  depth), Area 3: pooled along the road in a rectangular footprint of 44 gallons (140'x11, 1/2  depth).  It was estimated that 25 gallons was lost due to absorption/saturation within the dirt and grassy hill area.  The total volume of the spill was 6,625 gallons. 200 gallons was recovered, 25 gallons was lost due to absorption/saturation and the remaining 6,400 gallons entered the unknown tributary to Hinkle Creek.	Staff used the Duration and Flow Rate Comparison Method and estimated 125 gpm. The spill start time (11:15 am) was determined by the witness statements and flow coming out of the manhole. The spill end time was determined based on when the containment was set up with the vac truck and when suction began which was at approximately 12:08 pm.	Debris-General; Other (specify below)	Unknown blockage but it is assumed general debris.	Gravity Mainline		Vitrified Clay		45	The spill discharged onto both paved and unpaved surfaces as well as reaching an unnamed surface tributary of Hinkle Creek surface waters. Water samples were taken of the unnamed surface tributary and were brought to the lab for analysis. A Sewer Spill Notice sign was posted in the area alerting the residents that the spill had been contained, the area disinfected, and that samples of the creek had been taken to the lab.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Mitigated effects by using vac truck for suction, spraying disinfectant, washing the contaminated area and restoring flow. Cal OES was notified within 2 hours.	Using two vac trucks in combination together, the area was cleaned by spraying high pressure water and disinfectant toward the second vac truck with suction. 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	No defects found from the CCTV footage.	Routine flushing, CCTV, and manhole inspections will continue on scheduled intervals.	N/A	12/09/2024 12:50	After CCTV, no defects in the pipe were found. The spill was caused by unknown general debris.	N			Unnamed surface tributary to Hinkle Creek	Stream/Creek		Low flow, and shallow, meandering residential stream. The stream varies in width from approximately two to six feet.  	Due to the location of the spill into the unnamed surface tributary to Hinkle Creek, City Staff were not able to observe where the spill discharged into Hinkle Creek.  City Staff also were not able to observe any impacts to aquatic life.  No roads were closed, but a Sewer Spill Notice sign was posted in the area alerting residents that the spill had been contained, the area disinfected, and that samples of the creek had been taken to the lab.	Other (specify below)	A Sewer Spill Notice sign was posted in the area alerting residents that the spill had been contained, the area disinfected, and that samples of the creek had been taken to the lab.	City of Folsom	1	N	Y	Three samples were taken, upstream from the spill entry point, at the point of entry and further down stream.	The water was sampled for 30 Tube Fecal with a 5 day turnaround.										
2	2SSO10129	Active	East Palo Alto Sanitary Dist. CS	East Palo Alto Sanitary District	897938	1.6	Certified	Richard John Perez	Utility Manager	11-DEC-24	11-DEC-24	11-DEC-24	Category 1 Spill	1296 Garden Street	12/06/2024 15:32	12/06/2024 16:30	12/06/2024 15:32	12/06/2024 18:56	24-6801	11-DEC-24	See attached.	37.467017	-122.126509	Manhole			1386	Photos show spill location, inside manhole, etc. See attached. 	Y	The drainage conveyance system is an unlined drainage ditch that runs behind the dead end streets in this area. This drainage ditch moves storm water along the Bay Trail to an open area for holding. This holding area once full, transfers to the O'Conner pump station, once at a certain level, pumps to the San Francisquito Creek which flows to the San Francisco Bay , See attached photos.	877	508	Storm drain at curb conveyed spill to unlined drainage ditch. See photos attached.	508	877	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		On Friday, December 6th, 2024, at 3:32 p.m., West Bay received an email about the call from East Palo Alto Sanitary District about water overflowing from a manhole near 1286 Garden Street. West Bay�s service tech Victor arrived at 4:30 pm and confirmed an overflowing manhole.  Victor began to take photos and build an earth dam at 4:40 pm to prevent the spill from further entering a storm drain inlet. The Operations Supervisor arrived on site at 4:45 pm, and the Combo truck arrived at 5:28 pm, set up for a hose pull at the downstream manhole T21, and relieved the stoppage at 5:31 pm.   See attached document 1296 Garden St Heath's Report	Y	37.467017	-122.126511	37.466977	-122.126355					12/06/2024 17:31	See attached document 1296 Garden St Heath's Report	See attached document 1296 Garden St Heath's Report	Fats, Oil and Grease (FOG)		Gravity Mainline; Manhole		Other (specify below)	HDPE	7	SSO primarily impacted the unlined drainage storm water ditch. See attached documents Site View, East Palo Alto area map regarding storm water ditch and 1296 Garden St Heath's Report	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	See attached documents Site View, East Palo Alto area map regarding storm water ditch, 1296 Garden St Heath's Report with reference to photos.	See attachment 1296 Garden St Heath's Report.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		SSO was cleared and has been added to our contractors Hot Spot and PM schedule. CCTV performed 12/11/2024	This will be added to the Hot Spot and PM schedule. 	12/06/2024 17:31	See attachment 1296 Garden St Heath's Report.	Y	FOG	12/11/2024 17:00	San Francisquito Creek	Stream/Creek		Unlined storm water drainage ditch flows to a holding area that the City of East Palo Alto's O'Conner pump station pulls from to discharge into the San Francisquito Creek, which flows to the San Francisco Bay	(None) N/A	Other (specify below)	(None) N/A	East Palo Alto Sanitary District & City of East Palo Alto	0	N	N											FOG	
3	3SSO10314	Active	Salinas City CS	Salinas City	897939	1.2	Certified	Gary Gabriel	Wastewater Manager	11-DEC-24	17-DEC-24	17-DEC-24	Category 1 Spill	18405 Swaner Avenue	12/07/2024 11:59	12/07/2024 12:21	12/07/2024 11:00	12/07/2024 14:02	24-6819		Sanitary Sewer overflow appearance point discharged from a flushing inlet located in street in front of 18405 Swaner Avenue.  See Attachment SSO Appearance Point .	36.72283	-121.65354	Other Sewer System Structure	Flushing Inlet at beginning of pipe system.	None	520	SSO extent of spill originated from flushing inlet in front of 18405 Swaner Ave. Which traveled down curb and gutter area then draining into catch basin until finally discharging through outfall into concrete channel (Santa Rita Creek)   See Attachment Extent of Spill and Spill boundaries.	Y	Discharge originated from flushing inlet traveling down curb and gutter into catch basin and MS4 system.  See Attachment Entry Location into Drainage Conveyance System 	0	0	SSO discharged from flushing inlet in street to curb and gutter then into catch basin traveling through MS4 until discharging through outfall into concrete channel (Santa Rita Creek)  See Attachment Discharge Point into Surface Waters 	520	520	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water		SSO originated at flushing inlet in front of 18405 Swaner Ave. traveled down curb and gutter then into storm drain MS4 discharging from outfall into concrete channel (Santa Rita Creek). Spill was dammed at Hwy 101 and contained and fully recovered with vacuum truck. Additional vacuum truck was set up at discharge point into creek at Santa Rita Street. Concrete Channel was flushed to vacuum truck and fully recovered.  See Attachment Extent of Spill and Spill Boundaries Map .	Y	36.72282	-121.65355	36.72453	-121.65366	36.72569	-121.65859			12/07/2024 18:00	Staff used the Bucket method at the discharging outfall- Estimating how many minutes it takes to fill the bucket. Dividing the volume of the bucket( in gallons) by the elapsed time to fill bucket( in minutes). This provides the flow rate in gallons per minute (gpm). Once the gpm has been established, we multiply the gpm by the total time duration in minutes of the SSO until it stopped to determine the total estimated volume of the SSO.  See Attachment Bucket Method. Volume of spill recovered   See Attachment Volume of Spill Recovered . 	The SERP spill start time determinations worksheet was used. Worksheet used Start of spill through interviews and follow-up phone calls with reporting party, time Agency notified, Collection system operator dispatched, and arrival to site, end of spill and end of spill response.  See Attachment Date and Time Determinations 	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		46	Spill impacted concrete channel (Santa Rita Creek) Surface Water. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Staff received call of SSO and immediately dispatched sewer crews to discharge site identifying overflowing flushing inlet at 18405 Swaner Ave. Staff observed discharge at outfall into concrete channel and called in Two Vac-con vacuum trucks to position one at Hwy 101 overpass to conduct vacuum operation containment and recovery activities. Staff then installed earthen dam at Hwy 101 site to contain SSO. Second Vac-con was setup at Santa Rita Street to begin additional recovery efforts. Staff investigated system to determine where plug in system was and setup a third truck a Jetter truck and removed blockage to restore flow.  Once SSO discharge was stopped staff flushed curb and gutter area with fresh water from jetter truck to MS4 to both awaiting Vac-con vacuum trucks where additional staff began cleanup efforts to broom wash water into vacuum trucks. All discharge and wash water was recovered.  See Attachment Spill Cleanup and Response Activities 	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Post Spill CCTV	Serviced sewer system as follow-up from discharge point and beyond blockage location.	Serviced the system from discharge point beyond blockage location. Then staff CCTV'ed system to identify any issues that contributed to blockage and overflow none were found. Added to Quarterly Sewer Hotspot cleaning list. Also added to hotspot manhole inspection list.  See Attachment Inspection Lists  	1. Sewer System Cleaning completed 12/9/24 2. CCTV Work on system completed 12/9/24 3. Added to Quarterly Hotspot inspection List completed12/10/24 4. Added to Manhole Inspection List completed 12/13/24	12/07/2024 18:00	Investigation conducted onsite through visual inspections and CCTV determined that the cause of the spill was due to FOG and debris, wipes etc.	N			Santa Rita Creek	Stream/Creek		Concrete Channel of (Santa Rita Creek)	None	Other (specify below)	Concrete Channel has fencing all around full extent of spill area no public access due to fencing.	City of Salinas	0	N	N												
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	897946	1.3	Certified	Ameal McLaurin	Sewer Supervisor 2		18-DEC-24	18-DEC-24	Monthly Category 3 Spill	712 Franklin Street, Oakland Ca	11/27/2024 08:35	11/27/2024 09:21	11/27/2024 08:20				Inside the building/structure basement.	37.79925	-122.27254	Inside Building or Structure			478	Inside the building/structure basement, the property owner was pumping the sewage onto the adjacent parking lot. The sewage was mostly contained at the parking lot, with small amount flowing down to curb and gutter and separate storm inlet where it was fully captured.	Y	Storm inlet box.	36				181	Building or Structure; Drainage Conveyance System; Street/Curb and Gutter (2 3); Unpaved Surface		Inside the building/structure basement, the property owner was pumping the sewage onto the adjacent parking lot. The sewage was mostly contained at the parking lot, with small amount flowing down to curb and gutter and separate storm inlet where it was fully captured.	Y	37.79903	-122.27282							11/27/2024 10:22	Inside building basement average depth: .08' +.04' + .02' + .01'+ .0013' + 0 = .1513' / 6 = .025' 69'L x 23'W x .025'D x 7.48-gal = 297 gallons Parking lot average depth: .17' + .08' + .01' = .26' /3 = .09' 24'L x 9'W x .09'D x 7.48-gal = 145 gallons Puddle at driveway in curb average depth: .17' + .08'+=.25'/2 =.125' (.13') Recovered in storm inlet: 6'L x 3'W x .13'D x 7.48-gal /2 =9 gallons Gutter average width: 1' + .5' = 1.5' / 2 = .75' Recovered in storm inlet: 60' L x .75'W x .08'D x 7.48-gal = 27 gallons Total spill: 297 + 145 + 9 + 27 = 478 gallons Total spill recovered in storm inlet: 9 + 27 = 36 gallons Total spill recovered: 145 + 9 + 27 =181 gallons Total spill that a restoration company would have to recover from the building basement: 478 - 181 = 297 gallons   	The start time was based on eyewitness account. The end time was based on the responding sewer crew restoring the flow in thew mainline.  	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Other (specify below)	Cured in place pipe (PIPP)	14	Inside the building/structure basement, the property owner was pumping the sewage onto the adjacent parking lot. The sewage was mostly contained at the parking lot, with small amount flowing down to curb and gutter and separate storm inlet where it was fully captured.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Washed and cleaned up the affected areas of the spill outside the building, recovered the sewage on the outside of the property, and a claim packet was provided to the property owner to have a restoration company to recover the sewage and to clean and mitigate the effects of the spill.	Inside the building/structure basement, the property owner was pumping the sewage onto the adjacent parking lot. The sewage was mostly contained at the parking lot, with small amount flowing down to curb and gutter and separate storm inlet where it was fully captured.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Gravity main line has been placed on 6-month high frequency power rodding program W.O.#1531176 and 6-month high frequency hydro program W.O.#1579871.		11/28/2024 00:00	CCTV inspection W.O. # 1575773 found the main line in good condition, the inspection found grease deposition (FOG) and debris-wipes non disposables to have been the cause of the blockage.		N/A	12/02/2024 09:45														N/A	Gravity main line has been placed on 6-month high frequency power rodding program W.O.#1531176 and 6-month high frequency hydro program W.O.#1579871.	Gravity main line has been placed on 6-month high frequency power rodding program W.O.#1531176 and 6-month high frequency hydro program W.O.#1579871.	N/A	CCTV inspection W.O. # 1575773 found the main line in good condition, the inspection found grease deposition (FOG) and debris-wipes non disposables to have been the cause of the blockage.	N/A	CCTV inspection W.O. # 1575773 found the main line in good condition, the inspection found grease deposition (FOG) and debris-wipes non disposables to have been the cause of the blockage. Gravity main line has been placed on 6-month high frequency power rodding program W.O.#1531176 and 6-month high frequency hydro program W.O.#1579871.	CCTV inspection W.O. # 1575773 found the main line in good condition, the inspection found grease deposition (FOG) and debris-wipes non disposables to have been the cause of the blockage. Gravity main line has been placed on 6-month high frequency power rodding program W.O.#1531176 and 6-month high frequency hydro program W.O.#1579871.	N/A	
5S	5SSO10722	Active	City Of Auburn CS	Auburn City	897947	1.4	Certified	Mengil Deane	Public Works Director		10-JAN-25	10-JAN-25	Monthly Category 3 Spill	12750 Shockley CT SSO	11/09/2024 13:00	11/09/2024 13:00	11/09/2024 14:00				Manhole	38.91769	-121.06635	Gravity Mainline; Manhole			200	Over the top of manhole	N						200	Paved Surface; Unpaved Surface		Spill captured and removed from site										11/09/2024 14:30	Picture chart of spills	Picture chart of spills	Root Intrusion		Gravity Mainline		Vitrified Clay		30	None	N	Cleaned Up (specify below); Restored Flow		Blockage removed with hydro vac Spill captured and removed from site with hydro vac	Plan Rehabilitation or Replacement of Sewer		Plan is to repair main		11/09/2024 14:30	CCTV identified root intrusion as cause of spill		None	11/11/2024 15:00														None	None	None	Yes	CCTV inspection identified root intrusion	None	None	None	None	
5S	5SSO10987	Active	Lincoln CS	Lincoln City	897948	1.1	Certified	Aaron R Hookins	Environmental Services Manager		12-DEC-24	12-DEC-24	Category 1 Spill	2508 Halfmoon Ct.	12/06/2024 18:14	12/06/2024 18:55	12/06/2024 17:45	12/06/2024 17:45	24-6806	12-DEC-24	Spill occurred at manhole in front of 2508 Halfmoon ct. due to roots in the next downstream manhole.  The blockage was relieved by hydro flushing.  the spill was contained to a drainage system that s outfall was blocked by a beaver dam.	38.84418	-121.26476	Gravity Mainline					Y							Drainage Conveyance System; Drainage Conveyance System that discharges to surface water		Spill occurred at manhole that spilled into DI.  Spill was contained to 36 Di and sump at the apron of the outfall.  Outfall was backed up due to beaver dam that kept sewage contained.  No sewage made it to surface water(creek).	Y	38.8442	-121.26476	38.84443	-121.26507					12/06/2024 19:05	calculations were estimated by time resident made call, who said he had been working out front all day and didn't see anything until 5:45pm.  Technician estimated spill rate at 25glns per minute according to CWEA manhole overflow gauge illustrations.	spill started at 5:45 and ended at 7:05.  Technician calculated 25 gallons per minute spilling while he observed.  All sewage spilled was contained to a Di and sump at an oufall that was blocked due to a beaver dam.	Root Intrusion		Manhole		Concrete; Vitrified Clay		22	impact was to surface asphalt and storm drain inlet/Outfall.  All sewage was captured with combo truck.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		On-call technician was notified by after hours call out.  Technician responded with combo truck and began suction on spill.  He then contacted another combo truck and staff for help.  The second truck was able to break blockage of root intrusion in the downstream manhole of initial spill location.  Once blockage was cleared we began cleanup efforts on topside spill location and began suction of 36  DI.  All sewage was captured and dumped back into sewer system.  All sewage was cleaned up and the topside was disinfected.	Inspected Sewer Using CCTV to Determine Cause	All manholes in open space areas will be inspected immediately for root intrusion due to excessive growth.	All manholes in open space areas will be inspected immediately for root intrusion due to excessive growth.  We will plan a yearly inspection.	yearly inspection on open space manholes	12/11/2024 14:30	Spill was caused by root intrusion in a manhole in our open space.  Manhole had a small tree start growing right next to it which caused the intrusion.	N			small seasonal drainage conveyance.	Wetland		wetland	none	Other (specify below)	none needed since sewage did not impact body of water	n/a	0	N	N												
2	2SSO10142	Active	Town Of Hillsborough CS	Town Of Hillsborough	897949	1.1	Ready to Certify						Monthly Category 3 Spill	933 Jackling 	12/02/2024 09:30	12/02/2024 10:10	12/02/2024 09:15				NA	37.57606	-122.3756	Manhole			81	See Attachment	Y	See Attachment	0				81	Drainage Conveyance System; Street/Curb and Gutter (2 3)		See Attachment	Y	37.57727	-122.37518							12/02/2024 10:34	Spill volume calculation (L X W X D X 7.48) 	added 15 min from indicial reported spill. 	Debris-Rags; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Manhole		Vitrified Clay		95	Spilling from MH to curb and gutter.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		Crew attempted to contain spill by using soil from nearby lawn. Jetted to restore flow washed down and disinfected the area.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		After CCTV adjust our Maintenace schedule.		12/02/2024 12:52	CCTV determined cause was due to rags in the line.		CCTV of asset 	12/02/2024 04:30														NA	adjust our Maintenace schedule.	adjust our Maintenace schedule.	Will be added to upcoming CIP List.	Assets Inspected 	Will be added to list.	NA	See Attachment	CCTV of asset 	
2	2SSO10142	Active	Town Of Hillsborough CS	Town Of Hillsborough	897951	1.1	Ready to Certify						Monthly Category 3 Spill	4000 Crystal Springs Rd	12/02/2024 08:45	12/02/2024 08:58	12/02/2024 08:30				See Attachment	37.53009	-122.35815	Manhole			164	See Attachment	N	See Attachment	164				164	Paved Surface; Street/Curb and Gutter (2 3)		See Attachment	Y	37.53008	-122.35816							12/02/2024 09:10	Measured surface area and volume using  SSS Spill calculation work sheet  	See Attachment	Debris from Construction	Run off from construction site.	Gravity Mainline		Vitrified Clay		44	Discharge From MH Flow Over the ROW	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Photos taken  containment  jet to restore flow  vacuumed wash down disinfect 	Other (specify below)	The construction Debris was cleaned up by contractor 	Non at this moment construction site incident 		12/02/2024 09:10	Construction debris 		NA	12/02/2024 04:30														NA	NA	NA	Na	NA	NA	NA	NA	NA	
2	2SSO10217	Active	West Valley Sd CS	West Valley SD	897958	1.3	Certified	Kelvin Hatchett	Operations Supervisor	12-DEC-24	23-DEC-24	23-DEC-24	Category 1 Spill	Vineland/ Smith Creek	12/12/2024 08:10	12/12/2024 08:20	12/11/2024 10:10	12/12/2024 09:56	24-6919		37.24668 Lat.  -121.98185 long. Spill originated from Manhole located in an easement near Smith Creek, blockage in mainline from a broken pipe causing root intrusion and grease build up. Photos and Map located in Attachments. There was only one appearance point. 	37.24668	-121.98185	Manhole			16068	A portion of Spill located in vegetation and dirt around spill appearance point. Some of the spill made it way to Smith Creek. Map and photos attached.  	Y	Spill went directly in the creek photos are attached 	2495	13573	Manhole overflowing in an easement into Smith Creek. Photos Attached	13573	0	Drainage Conveyance System that discharges to surface water; Surface Water; Unpaved Surface		 Spill appearance point was from a manhole 6-045-04 overflowing in an easement.   37.24681 Lat. -121.98176 Long.  to   	Y	37.24681	-121.98176	37.24685	-121.98246	37.25487	-121.98087			12/12/2024 09:46	Spill Volume Calculator/ measurements and drawing of affected area/ Metered Average Flow rate. See attached calculations and maps. 	Spill start time was based on property owner noticing smell in area intermittently on 12/11/2024 it was assumed at peak flow 6:30 am. Spill in time was based on WVSD crews breaking stoppage causing manhole to stop overflowing.	Debris-Rags; Fats, Oil and Grease (FOG); Other (specify below); Root Intrusion	Pipe section broken allowing root intrusion and grease build up.	Gravity Mainline		Vitrified Clay		75	Spill impacted creek and surrounding vegetation.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Restoration Management cleaned up all spill affecting dirt and vegetation.	Restoration Management cleaned up all spill on land.  	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		Repair of mainline was done on 12/13/2024. Reduction of cleaning frequency. CCTV of upstream and downstream pipes. All steps completed by 12/23/2024.	Changes have all been performed.	12/23/2024 09:00	Pipe section broken allowing root intrusion and grease build up.	N			Smith Creek	Stream/Creek		 large Creek 	None	Restricted Public Access		West	1	N	N												
2	2SSO10170	Active	Richmond City CS	Richmond City	897970	1.4	Certified	MARY PHELPS	WATER RESOURCE DIVISION MANAGER	12-DEC-24	23-DEC-24	23-DEC-24	Category 2 Spill	100 38th St	12/09/2024 11:00	12/09/2024 11:45	12/07/2024 03:00	12/09/2024 12:25			Abandoned county building basement, under sub-floor, line break & spill (see photos). Completely contained, no potential threat of discharge to MS4 or of leaving the building (fully contained).	37.93234	-122.33298	Inside Building or Structure; Lateral Clean Out (Private)			49867	Boundaries are contained within building basement, concrete floor. Area is 80' x 80' with 10  of spill, contained in subfloor. See photos.	N						49867	Building or Structure		Spill completely contained in structure.	Y	37.93234	-122.33298							12/09/2024 14:25	Length x. Height x. width. - cubic feel converted to gallons	Interviews with property owner.	Collection System Maintenance Failure (specify below)		Gravity Mainline		Vitrified Clay		45	None. Building was concrete floor. Spill 100% contained, returned to sanitary sewer. Area was cleaned and sanitized after spill contents returned to sanitary sewer.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	Cleaned and sanitized concrete area.	Vacation property. Owner checked on property and heard water running. Went to investigate and realized the basement was full of sewage. Reported incident to Public Works Department	Added Sewer to Preventive Maintenance Program		Placed location on Hot Spot Program	Location will be cleaned every three (3) months until satisfactory rating.	12/09/2024 14:20	Property is vacant. When owner when to check on property, they noticed problem with sump pump in basement and reported the SSO incident to Public Works.	N												N													
5S	5SSO10890	Active	City Of Antioch CS	Antioch City	897971	1.1	Certified	Toby A Beach	Collection System Superintendent		12-DEC-24	12-DEC-24	Monthly Category 3 Spill	1820 Crater Peak Way	11/18/2024 08:14	12/12/2024 08:24	11/18/2024 08:00				Spill Manhole in roadway at 1820 Crater Peak Way. c	37.96909	-121.79219	Manhole	N/A	N/A	88	Spill traveled from manhole, down curb and gutter, into storm catch basin. See photos attached	Y	Sewerage made it into the storm catch basin but did not get any further due to a 2-inch lip from bottom of basin. Crew vacuumed and cleaned catch basin. 	4				88	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)	N/A	street/curb and gutter paved surface Drainage Conveyance system	Y	37.96902	-121.79215							11/18/2024 08:36	The spill volume estimations were calculated using the Area/Volume Method.  A sketch is attached	We interviewed all surrounding neighbors to gather information to determine our estimated spill start time. The stop time was determined by the time the responding crew relieved the plug in our main. 	Debris-General		Gravity Mainline		Vitrified Clay		32	The spill was contained to a paved surface and the final destination was a catch basin. Spill was fully recovered. No harmful impact.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Spill was self contained at final spill destination. Added absorbent to stop flow into catch basin.  Cleared blockage to stop spill. The area and catch basin was cleaned and vacuumed with combo truck.	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Televised sewer main and found grease in line. Main has been cleaned and a 6 month follow up created to prevent any future issues. 		11/18/2024 14:07	we televised the main line and found grease to be caused of the stoppage. Added line to a 6-month cctv follow up.		Investigation has been completed	11/21/2024 14:33														no regulatory action taken	6 month follow up to be televised	N/A	N/A	Main sewer line was televised on 11/21/2024 no structural defects found, continue with 6 month follow up.	No Capital improvement needed	CCTV report generated for this line segment.  Noted in our sewer spill debriefing meeting.	Based on review of our response, no modifications are required.	Investigation has been completed	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	897973	1.1	Certified	Kent Vian	Asst. Deputy Director		28-JAN-25	28-JAN-25	Monthly Category 3 Spill	NOT-40201185158 4336 GOLDFINCH ST.	12/11/2024 21:36	12/11/2024 22:00	12/11/2024 23:30				SPILL BACKED UP OUT OF CP SEWER MAIN AND HEADED WEST THROUGH PIPE AND CAME OUT OF A PRIVATE SEWER LATERALS BELONGING TO 4334 & 4336 GOLDFINCH ST.	32.75654	-117.17176	Lower Lateral (Private)	N/A	N/A	570	SPILL BACKED UP OUT OF CP SEWER MAIN AND HEADED WEST THROUGH PIPE AND CAME OUT OF A PRIVATE SEWER LATERALS BELONGING TO 4334 & 4336 GOLDFINCH ST.	N	N/A	0				0	Building or Structure	N/A	THE SPILL SETTLED IN THE TWO PRIVATE PROPERTIES 4334 & 4336 GOLDFINCH ST.	Y	32.75654	-117.17176							12/11/2024 23:30	THE SPILL VOLUME WAS CALCULATED USING THE VISUAL CALCULATED METHOD.	THE SPILL START WAS DETERMINED WHEN THE CONSUMER CALLED IN TO REPORT THE SPILL, AND THE SPILL END TIME WAS WHEN CREWS VISUALLY CONFIRMED THE SPILL HAD STOPPED.	Pipe Structural Problem/Failure - Controls	N/A	Gravity Mainline	N/A	Concrete	N/A	72	THE SPILL IMPACTED A CRAWL SPACE, BATHROOM , BEDROOM AT 4334 GOLDFINCH AND THE GARAGE, LIVING ROOM , BACK YARD AT 4336 GOLDFINCH ST.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow	N/A	THE RESPONSE ACTIVITIES WERE TO RELIEVE THE BLOCKAGE BY FLUSHING SEWER MAIN USING VACTOR TRUCK TO RESTORE FLOW.	Inspected Sewer Using CCTV to Determine Cause	N/A	LINER TO BE REPAIRED AND MANHOLES TO BE REHAB BY CONTRACTOR		12/11/2024 23:30	THE CONCRETE SEWER MAIN HAS SPOTS IN IT WHERE IT WAS TOTALLY DETERIORATED LINER FAIL. 		NO	12/12/2024 14:30														N/A	LINER FAIL	NOT AT THIS TIME 	YES, UNDER CIP# 836 REHAB OF TWO MANHOLES 	YES, UNDER CIP # 836	YES	SEE ATTACHED UNDER GOLDFINCH DOC	N/A	NO	
3	3SSO11524	Active	Monterey City CS	Monterey City	897974	1.2	Certified	Andrew Easterling	City Engineer	13-DEC-24	19-DEC-24	19-DEC-24	Category 1 Spill	Fisherman's Wharf	12/12/2024 14:00	12/12/2024 14:00	12/11/2024 08:00				Sewer lateral beneath Fisherman's Wharf unit 6B for Candyland store.  Candyland 	36.60376	-121.89306	Lower Lateral (Public)			200	Sewer lateral suspended below wharf had a leaking rubber coupler with a direct discharge to the ocean.  The rubber gasket appears to have weathered and cracked in the ocean environment and had a steady drip, it was not a complete break in the pipe.	N				Rubber coupling with 2 stainless steel compression bands joining 2 pieces of 4  ABS sewer lateral.  The rubber had cracked and had a steady drip into the ocean.	200	0	Surface Water		A steady drip under Candyland at Fisherman's Wharf Unit 6b was identified by Harbor staff dripping directly into ocean beneath the wharf.  	Y	36.60376	-121.89308							12/12/2024 14:00	Assumed that a small business uses 400 gallons/day.  This is consistent with historic Cal Am Water allotment listed in their historic usage.  Assumed a partial leakage of 24% for 2 days equates to 200 gallons spilled.	Confirmed estimates with Cal Am Water usage data for this business water account was consistent with assumed 400 gallons/day.	Pipe Structural Problem/Failure - Controls	A rubber coupling connecting 2 ABS pipes together had corroded and cracked, allowing a portion of the sewer to leak.	Lower Lateral		Polyvinyl Chloride (PVC)		50	There was no visible trace of sewer once the leak reached the ocean.  The only visible sign was the initial leak detected.  Trace amounts of sewer entered the ocean but were undetectable once diluted.	N	Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow	Upon identifying the leak, the business was notified by Building Maintenance to close the restrooms until a plumber could make the repair.  A plumber was contracted by the City who completed the repair the following day at low tide at 2pm on 12/13/24.	Harbor staff identified the spill and notified City Building Maintenance (BM).  BM advised business owner to close restrooms, and notified City Property Manager, and City Environmental of the leak.  It was confirmed that the City is responsible for the maintenance on this lease.  City contracted a plumber to make the repair.  No sewer was recoverable once it reached the ocean.	Repaired Facilities or Replaced Defect		Harbor security and Public Works will continue to routinely monitor utilities under the wharf.  	Ongoing	12/13/2024 16:00	Rubber coupling used to connect 2 pieces of plastic pipe had been exposed to seawater and dried out and cracked.  	N			Pacific Ocean	Ocean		Pacific Ocean under Wharf I aka Fisherman's Wharf.	No observed impacts.	Other (specify below)	Business restrooms temporarily closed until repair was complete.	City of Monterey	1	N	N												
2	2SSO10183	Active	San Mateo CIty CS	San Mateo City	898011	1.4	Certified	Tony Baltodano 	PW Field Maintenance Manager 	14-DEC-24	24-DEC-24	24-DEC-24	Category 1 Spill	Saratoga between Delaware and UFES	12/14/2024 07:24	12/14/2024 08:11	12/14/2024 07:24	12/14/2024 09:30	24-6968		Manhole between Delaware and UFES(underground flow equalization storage) overflowed due to isolation valve sensor/program glitch and valve closed stopping inflow AMENDMENT!! SCADA confirms Valve closed at 7:24am and reopened at 8:30 with manhole ceasing to overflow immediately(confirmed visually) 	37.54855	-122.30058	Manhole			5400	overflowed directly to storm catch basin leading directly to creek	Y	storm pipe	0	0	pipe direct connects to 19th ave channel	5400	0	Street/Curb and Gutter (2 3)		Manhole between Delaware and UFES (Underground Flow Equalization Storage) overflowed due to isolation valve sensor/program glitch and valve closed stopping flow into UFES. SCADA confirmed isolation valve closed at 7:24am and was reopened by operators at 8:30am ceasing the overflow immediately. 	Y	37.54855	-122.30058							12/14/2024 08:29	Duration and Flow Method 	SCADA information confirmed of isolation valve closing at 7:24am and reopening at 8:29am/ confirmed by staff on site. 	Other (specify below)	Isolation valve closed due to wrong programming in SCADA. 	Manhole		Polyvinyl Chloride (PVC)		1	The only impact was that it overflowed to Borel Creek. 	Y	Other (specify below)	Make roadway safe, contact treatment plant supervisor and open Isolation valve to restore flow. 	Utilized cones and barricades to make roadway safe during rain event. 	Other (specify below)	SCADA isolation settings were changed to avoid unexpected isolation valve closure. 	Met with treatment plant supervisor and engineering staff to confirm appropriate SCADA setting. 	N/A	12/14/2024 10:32	Met with treatment plant supervisor and engineering staff to confirm appropriate SCADA setting for UFES (Underground Flow Equalization System) 	N			Borel Creek 	Stream/Creek		Creek leading to the Lagoon and then leading to the Bay. 	No observed impact to aquatic life. 	Other (specify below)	None 	City of San Mateo Regulatory Compliance Department. 	0	N	N												
1	1SSO10016	Active	Rohnert Park City CS	Rohnert Park City	898012	1.3	Certified	Vanessa Garrett	Public Works Director	14-DEC-24	24-DEC-24	24-DEC-24	Category 1 Spill	1020 Wilfred Ave - ARV Valve	12/14/2024 11:41	12/14/2024 11:53	12/14/2024 10:54	12/14/2024 13:52	24-6972	23-DEC-24	There was a failure in the ARV vault structure. A section of 30  ductile iron experienced a failure. A small crack was identified. 	38.36303	-122.75423	Force Main; Manhole	N/A	The vent for the ARV valve	16426	Photographs are of the manhole the ARV valve manhole/vault structure  and ARV valve vent  Also pictures of the affected drainage ditches,	Y	Drainage ditches on either side of Arlington Ave - These ditches drain to field which drains to the Laguna De Santa Rosa	8079	0	Pictures are of two drainage conveyance ditches built by homeowner located at 5001 Arlington Ave. The property owner said he built the ditches when the road was installed. These ditches discharged to field that was flooded with 2'-5' of water due to storm system. The Laguna De Santa Rosa flooded the field	8347	0	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water		Two drainage conveyance ditches on either side of 5001 Arlington Ave. These ditches drain to open field that was impacted by the Laguna De Santa Rosa during major storm event	Y	38.36115	-122.75383							12/14/2024 11:55	The volume was estimated utilizing the Area/Volume method. We also utilized flow rate comparison based off photos. The two comparisons were within a 1,000 gallons. The greater of the two was utilized which was area/volume method. We filled 2 -8 yard VacCon tanks and 2 -12 yard Vactor  tanks to estimate the volume recovered = 40 Cubic Yards	The resident who noticed leak was interviewed said she heard it first at 10:54 am. The end time was documented by onsite supervisor after the pump station was taken out of service and no flow was witnessed.	Pipe Structural Problem/Failure - Installation	.	Air Relief Valve (ARV)/ Blow-Off Valve (BOV); Force Main; Manhole	The cracked pipe was in the ARV vault	Ductile Iron	30  Ductile Iron	21	The spill exited the manhole to drainage conveyance system in front of 1040 Wilfred Ave. This drained into two drainage ditches on either side of 5001 Arlington Road. These exited to big open field flooded by Laguna De Santa Rosa	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Returned Portion of Spill to Sanitary Sewer System	Staff employed two machines VacCon combo machine and Vactor Hydro excavator. Cleaned ARV vault and drainage conveyance ditches. A total of 40 cubic yards of material were returned to Sanitary Sewer System	See Attachment	Repaired Facilities or Replaced Defect		The affected pipe was removed and replaced. Staff to investigate remaining ARV structures on the 30  force main	Summer 2025 - during wet will lining project we will video the other ARV locations to ensure the integrity of the pipe.	12/19/2024 13:02	Crack in the 30  ductile iron pipe located in the ARV vault.  There was some corrosion on pipe. 	Y	Possible downstream restriction at adjacent agency managed facility.	03/31/2025 13:06	Laguna De Santa Rosa	Stream/Creek	The  water discharged to oepen field that was impacted by 2'-5' of water due to large storm event. The field was flooded due to the Laguna De Santa Rosa at flood stage	Laguna De Santa Rosa - From where the drainage conveyance ditches discharge to the field it's approximately 800' to the Laguna De Santa Rosa Channel	There were no observed impacts on aquatic life	Restricted Public Access	Restricted access while clean-up was being performed	Sonoma County Water Agency	5	N	N											Possible downstream restriction at adjacent agency managed facility.	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	898013	1.4	Certified	John J. Hough	San Dist. Superintendent	15-DEC-24	27-DEC-24	27-DEC-24	Category 1 Spill	353166	12/13/2024 09:33	12/13/2024 10:27	12/12/2024 08:30				See Attached Spill map with Photos.	38.6649	121.3599	Lateral Clean Out (Public)			225	See Attached Spill Map with Photos	Y	See Attached Spill map with Photos.	0	0	See Attached Spill map with Photos.	160	63	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See attached Spill Map.	Y	38.6649	-121.3599	38.6659	-121.3598	38.6713	-121.6309			12/13/2024 10:27	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Debris-General		Lower Lateral		Cast Iron		57	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		See Attached Description of Spill Event	Plan Rehabilitation or Replacement of Sewer		SacSewer inspected the lower lateral with CCTV on December 13, 2024. Based on the findings, SacSewer will replace the mainline tap.	SacSewer inspected the lower lateral with CCTV on December 13, 2024. Based on the findings, SacSewer will replace the main line tap.	12/13/2024 12:40	See Attached Description of Spill Event.	N			Magpie Creek	Stream/Creek		Creek. See attached Spill Map	No observed impacts to aquatic life	Other (specify below)	No public impact	N/A	0	N	N												
8	8SSO10574	Active	Garden Grove City CS	Garden Grove Sanitary District	898017	1.1	Certified	William Murray	Public Works Director		22-JAN-25	22-JAN-25	Monthly Category 3 Spill	11771 Markon	12/05/2024 13:33	12/05/2024 14:15	12/05/2024 13:00				District manhole 8188.	33.79172	-118.00798	Manhole			496	The overflow entered the curb and gutter and flowed towards catch basin inlet 1788. Crews placed rubber mats and sandbags over the inlet and contained all of the overflow in the curb and gutter.	N						496	Street/Curb and Gutter (2 3)		The overflow was contained in the curb and gutter. Crews placed rubber mats and sandbags over the nearby catch basin inlet to prevent any sewage from entering the storm drain system. This contained the overflow in the curb and gutter.	Y	33.79169	-118.00782							12/05/2024 15:05	The overflow volume was calculated using a triangle flow calculation for curb and gutters. Width (.67 ft) x Depth (.04 ft) x (.5) = (.013 square ft) x Velocity (.66 ft/sec) x (449 to convert to gal/min) = (3.97 gal/min) x (125 min of spillage) = (496.25 gal, rounded to 496 gal).	District staff contacted the resident who called in the spill in order to determine a start time. The caller said the overflow was noticed just before the call was made. The call came in at 1:33 PM. The overflow must have started before the call came in. The District has determined a start time of 1:00 PM.	Other (specify below)	CCTV inspection showed a piece of aluminum in the pipe. 	Gravity Mainline		Vitrified Clay		47	The spill reached the curb and gutter. Crews placed rubber mats over the nearby catch basin inlet to prevent any overflow from entering the storm drain system. The spill was contained in the curb and gutter an crews were able to vacuum up all of the overflow. The spill area was washed and vacuumed.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		District crews responded to a manhole overflow call at 11771 Markon Drive. District manhole #8188 had overflowed into the curb and gutter. The flow was minimal and sporadic. The manhole was not overflowing when crews arrived and it had not reached the downstream catch basin inlet on Blades Ave. Crews placed rubber mats and sandbags over the downstream catch basin inlet to prevent any overflow from entering the storm drain system. While crews were investigating where to break the blockage from, the manhole began to overflow again into the curb and gutter. A District combination truck was set up at the containment site at the catch basin inlet and began to vacuum up the overflow. The overflow was fully contained and recovered. No sewage entered the storm drain system. A second District combination truck was set up at District manhole #8193 and broke a grease blockage at approximately 680 feet upstream at 3:05 pm. Flow returned to normal and the spill area was washed and vacuumed. 	Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Post Spill CCTV; Repaired Facilities or Replaced Defect	The District is considering adding a Smart Cover meter to monitor flow.	The CCTV inspection showed two pieces of metal in the pipe that were causing restriction of flow. Crews were able to remove both pieces of metal from the sewer line in order to prevent further blockages. Crews noticed heavy amounts of grease in the line. Crews notified Garden Grove Environmental and they inspected nearby businesses to enforce the City's FOG ordinance. 		12/16/2024 08:33	A post spill CCTV inspection was completed and crews found a piece of aluminum in the pipe. This was causing a restriction in flow. Crews used a combination truck to loosen the piece of metal and move it to the downstream manhole where crews could remove it from the pipe.		Garden Grove Environmental is conducting an investigation into the source of the heavy grease in the line. A Smart Cover metering device will be added to the location to provide constant monitoring of the flow levels in the pipe. It will send out alarms to District staff if the pipe starts to back up. It should be installed by the end of February 2025.	02/28/2025 09:56														Garden Grove Environmental made inspections of nearby businesses and also contacted OC San source control to see if further investigations are needed.	The District has decided to add a Smart Cover meter at the manhole that overflowed. This will provide constant measurement of the flow levels in the District line. This area will be monitored to see if modifications need to be made to our maintenance program.	None planned at this time.	None planned at this time.	Crews found two pieces of metal in the pipe. Crews were able to remove both pieces of metal from the sewer line. Photos attached.	None planned at this time.	No modifications at this time.	No modifications at this time.	Garden Grove Environmental is conducting an investigation into the source of the heavy grease in the line. A Smart Cover metering device will be added to the location to provide constant monitoring of the flow levels in the pipe. It will send out alarms to District staff if the pipe starts to back up. It should be installed by the end of February 2025.	
1	1SSO10058	Active	Rio Dell City CS	Rio Dell City	898020	1.2	Certified	Sunshine Kelly	Wastewater Superintendent	16-DEC-24	23-DEC-24	23-DEC-24	Category 1 Spill	End of Painter Street Manhole	12/14/2024 07:00	12/14/2024 08:04	12/13/2024 21:00	12/14/2024 08:28	24-6964		The spill was located at the Painter Street manhole at 556 Painter St. Photos attached show spill location. 	40.503117	-124.093756	Manhole			4900	The spill was located at the Painter Street manhole and flowed down the gravel ditch away from the residential area toward the Eel River, river bar. Photos show the sandbags, and ditch in place to direct the flow away from the residential area. 	N				Photos show the ditch that the SSO used to convey to the Surface water. At the time of the photos the SSO had stopped and only rain runoff was flowing down the path to the Eel River.	4900	0	Surface Water		The Spill flowed to the Eel River at Latitude/ Longitude: 40.503055, -124.091890.	Y	40.503055	-124.09189							12/13/2024 22:00	The volume estimation was based on flow monitoring of supervisory control from SCADA based on the trend of the Painter Street lift station wet well level and pump control and the influent flow data into the plant.	The methodology of the spill start time was based on supervisory control based on SCADA of the data collected on the Painter Street Pump station trend, and the rain gauge at the Wastewater treatment plant. We were prepared for the event and had sandbags, a ditch to convey the spill away from residential properties and signs posted. Due to extreme weather conditions, high unsafe winds, recovery was not enabled.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Other (specify below)	The failure is that the sanitary sewer main at this location was constructed with a 90 degree turn at this manhole and the earthquake in December of 2022 destroyed sewer mains, and private laterals allowing more I&I to enter this portion of the sanitary sewer system. An upsizing project for this section of the sanitary sewer system is in the works since 2019 and will hopefully see some forward momentum with state funding this spring and summer, before the next wet season. CCTVing is an ongoing process under the current SSES, and a few key areas had camera work done to them just before this storm started.	55	There was no impact to residence or private property, or human life as spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage and the property owners were made aware of the issue at this site location.	Y	Cleaned Up (specify below)		Spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage was in place, property owners were notified, and after the extreme wind subsided the location was cleaned and sprayed with chlorine for disinfection.	Plan Rehabilitation or Replacement of Sewer		This site has a planned upsizing project in the planning phases for the past 6 years. Currently waiting on State funding to push the design process forward. Also looking to camera sewer mains and do a smoke test of the laterals in the area that lead to the Painter Street Pump Station.	Meeting with the State Water Control Board and Engineering company GHD on January 24th, 2024, provided some comfort that the State would approve the funding of this project, and the City of Rio Dell can start the design process. CCTV-ing of some of the sewer mains that lead to the pump stations up stream of this manhole were just completed before this rain event. The data is being reviewed currently. 	12/14/2024 08:05	This SSO occurred due to the high levels of I&I. Several days of rain and saturation of the ground caused the pump station to become overwhelmed when large amount of rain occurred at once and caused the SSO at this location, the Painter Street manhole.	N			Eel River	River		The Eel River is a large river that runs north on the east side of the City of Rio Dell. There are no Surface Water users downstream of the SSO discharge location. 	No known impacts to aquatic life.	Temporary Restricted Use		City of Rio Dell Wastewater Superintendent 	1	N	N												
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	898023	1.2	Certified	Daniel Whitlock	Manager	16-DEC-24	03-JAN-25	03-JAN-25	Category 2 Spill	Evans and Selby	12/14/2024 06:46	12/14/2024 06:46	12/14/2024 06:00				Overflow on Evans Ave. Reached area between Selby St. and Napolean St but much closer to Selby side of street.	37.7462	-122.39415	Manhole			18000	Evans and Selby St. from manhole N-343133.	N						18000	Other (specify below); Paved Surface; Street/Curb and Gutter (2 3)	Combined System Storm Drain.	Overflow on Evans Ave. reached between Selby St. and Napolean St. but much closer to Selby side of street.	Y	37.7462	-122.39415							12/14/2024 06:20	H&H Hydraulics	Hydraulics used asset N-343133 to run model.	Other (specify below); Surcharged Pipe (Combined Collection System Only)	Rainfall exceeded capacity of sewer.	Gravity Mainline		Vitrified Clay		79	No road closures. Vehicles could sill go through street.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below)	Returned all spill to combined sewer system.	Posted overflow signs and sewage present signs. Once water receded back into combined system, sprayed down and vacuumed affected area with vaccon truck.	Other (specify below)	N/A Rainfall exceeded capacity of the sewer.	N/A rainfall exceeded capacity of the sewer.	12/14/2024 4:50 am - Spill Begins 12/14/2024 6:20 am - Spill ends 12/14/2024 12:50 pm - Clean Up Begins 12/14/2024 1:20 pm - Clean Up ends	12/27/2024 07:23	Heavy storm caused rainfall to exceed capacity of the sewer.	N												N													
1	1SSO11491	Active	Santa Rosa City CS	Santa Rosa City Utilities Dept	898024	1.2	Certified	Ron Marincic	Utility System Superintendent	16-DEC-24	16-DEC-24	16-DEC-24	Category 1 Spill	Laurel Leaf Pl. Santa Rosa, Ca.	12/14/2024 12:55	12/14/2024 13:19	12/13/2024 23:00	12/14/2024 15:30	24-6973		Overflow was discharging from three different locations, Gravity mainline manholes II3116MH015 and II3116MH016 both at 308 Laurel Leaf PL. and one private lateral cleanout at 6641 Oakmont Dr.(cleanout is on Laurel Leaf Pl.).	38.44007	-122.60225	Gravity Mainline; Lateral Clean Out (Private); Manhole	N/A	Mainline blockage downstream of private lateral and two manhole appearance points.	4085	Due to the amount of runoff from previous night and early morning heavy rainfall it was not possible to recover the spilled sewer. The concrete gutter flow is split at the south end of Laurel Leaf Pl. The eastside follows the curb north then turns west and flows west until it reaches Oakmont Dr. then turns north until it reaches a storm drain drop inlet on the southeast corner of White Oak Dr. the storm drain continues north across White Oak Dr. then turns west across Oakmont Dr. and turns north flowing to the outfall at Laurel Creek which flows to Oakmont creek. The westside of the split follows the curb north then turns west and flows west until it reaches Oakmont Dr. then turns south entering a storm drain drop inlet. The storm drain crosses Oakmont Dr. and continues to the outfall at Oakmont Creek. Attached are maps showing the area of the overflow, storm drain, and outfall.	Y	Concrete gutter to storm drain to Oakmont Creek.	0	0	Storm drain conveyance system to outfall of creek. 	4085	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		Due to the amount of runoff from previous night and early morning heavy rainfall it was not possible to recover the spilled sewer. The gutter flow is split at the south end of Laurel Leaf Pl. The eastside follows the curb north then turns west and flows west until it reaches Oakmont Dr. then turns north until it reaches a storm drain drop inlet on the southeast corner of White Oak Dr. the storm drain continues north across White Oak Dr. then turns west across Oakmont Dr. and turns north flowing to the outfall at Laurel Creek which flows to Oakmont creek. The westside of the split follows the curb north then turns west and flows west until it reaches Oakmont Dr. then turns south entering a storm drain drop inlet. The storm drain crosses Oakmont Dr. and continues to the outfall at Oakmont Creek. Attached are maps showing the area of the overflow, storm drain, and outfall.	Y	38.44007	-122.60225							12/14/2024 14:07	Flow estimation from required training and exercises including our own sso estimation facility and photos 	Call notification, witness interviews and time blockage broken.  Our initial estimation was 435 gallons, however, further investigation revealed that the witness's Son came home around 11:00 PM the night prior and witnessed the flow from a manhole(even though it was raining extremely heavy) out of an abundance of caution and transparency, we recalculated our totals to begin at that time, resulting in a total volume of 4,085 gallons.     	Damage by Others Not Related to Collection System Construction/Maintenance; Debris from Lateral		Gravity Mainline; Other (specify below)	Blockage was in gravity mainline but initial inspection shows potential failure to private lateral allowing debris to enter system.	Other (specify below)	AC	59	Impact was non apparent.  Spill occurred during heavy gutter/storm drain flow from rain event during the days prior.  Manhole lids were in place.  No product  or sheen/discoloration was visible at outfall. 	Y	Cleaned Up (specify below); Property Owner Notified; Restored Flow		Initial containment was attempted but due to high volume of run-off flow, not successful.  Blockage was broken and area flushed/washed and vaccummed.	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Due to the private lateral potentially contributing to the spill, further investigation is underway along with communication with the property owner.	Further investigation is underway along with communication with the property owner  Occurring today.	Occurring today with completion expected this week. 	12/14/2024 15:45	Due to the private lateral potentially contributing to the spill, further investigation is underway along with communication with the property owner.	Y	Due to the private lateral potentially contributing to the spill, further investigation is underway along with communication with the property owner.	12/19/2024 10:50	Oakmont Creek	Stream/Creek		Small creek, heavy flow from recent storm.	None	Other (specify below)	None	County Environmental Health.	0	N	N											Due to the private lateral potentially contributing to the spill, further investigation is underway along with communication with the property owner.	
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	898026	1.2	Certified	Daniel Whitlock	Manager	16-DEC-24	03-JAN-25	03-JAN-25	Category 2 Spill	Toland and Galvez	12/14/2024 06:20	12/14/2024 06:20	12/14/2024 06:00				Spill came out of manhole N-28408. The lowest point on the street.	37.74657	-122.39659	Manhole			68000	Overflow on Toland St. reached between Galvez Ave. to the left corner building of 150 Toland St. (Deli Lama Breakfast)	N						68000	Other (specify below); Paved Surface; Street/Curb and Gutter (2 3)	Combined Storm Drain	Overflow on Toland St. reached between Galvez Ave. to the left corner building of 150 Toland St. (Deli lama Breakfast)	Y	37.74657	-122.39659	37.7466	-122.39701					12/14/2024 09:40	H&H Hydraulics	Hydraulics used asset N-28408 to run model.	Surcharged Pipe (Combined Collection System Only)		Gravity Mainline		Vitrified Clay		36	No property damage. Vehicles can still go through the side of the street.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below)	Returned all spill to combined system.	Posted overflow and sewage present signs. Vaccons vaccumed, sprayed, and disinfected affected area once water went back into the combined system.	Other (specify below)	N/A Rainfall exceeded capacity of sewer.	N/A Rainfall exceeded capacity of sewer.	12/14/2024 4:40 am - Spill begins 12/14/2024 09:40 am - Spill Ends 12/14/2024 08:15 am - Clean Up Begins 12/14/2024 08:45 am - Clean Up Ends	12/31/2024 11:55	Heavy storms caused rainfall to exceed capacity of sewer.	N												N													
9	9SSO10706	Active	Temecula Valley RCS	Eastern Municipal Water District	898027	1.1	Certified	Ken Tagney	Director of Water Reclamation		20-DEC-24	20-DEC-24	Category 1 Spill	Pourroy Road Lift Force Main	12/15/2024 13:50	12/15/2024 16:30	12/15/2024 13:50	12/15/2024 17:17	24-6992		The spill occurred on Pourroy Road where the SSO percolated up through the pavement of the road. 	33.56931	-117.10389	Force Main			1100	The spill flowed from Pourroy Road into an adjacent storm drain inlet where it then flowed into the dray drainage creek adjacent to Pourroy Road. 	Y	Storm drain inlet, concrete box and conveyance piping leading to drainage creek. 	0	0	Concrete pipe leading to drainage creek. 	1100	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		The SSO flowed into the drainage creek on the northwest side of Pourroy Road. 	Y	33.56944	-117.10411							12/15/2024 15:40	A visual estimate of flow rate was used to estimate total volume of spill. The volume was determined by multiplying the flow rate by the spill duration in minutes. EMWD field crews are trained in flow rate visual estimation as well as the use of field SSO guides to help in visual flow rate estimations. 	The spill start time was estimated from the time the spill was reported. The end time estimate was take from when EMWD Lift Station personnel isolated the line ending the SSO. 	Other (specify below)	The force main line failed while in operation. 	Force Main		Polyvinyl Chloride (PVC)		15	While cleanup and repairs are taking place, vehicle traffic on Pourry Road will be impacted in the work area. 	N	Cleaned Up (specify below); Restored Flow		EMWD responded to the spill to isolate the affected line in order to stop the flow of the SSO. Once the flow was stopped EMWD cleaned up the street, curb gutter, and drain inlet. Due to vegetation and limited access EMWD was not able to make entry into the drainage creek. 	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		The force main at the point of the break will be replaced and returned to service. 	Pipeline repairs are ongoing at the time of this report.  	12/15/2024 16:30	Exposing the pipe at the break. At this time the cause of the break is still on going. 	N			Tucalota Creek 	Stream/Creek		Seasonal drainage creek draining the surrounding housing development as well as open land in the area. 	None, the creek was mostly dry other than some wet areas from irrigation runoff. There was no observed flow in the creek. 	Other (specify below)	The area affected by the SSO is closed to the public. 	Not appliciable	0	N	N												
2	2SSO10142	Active	Town Of Hillsborough CS	Town Of Hillsborough	898028	1.1	Work In Progress						Monthly Category 3 Spill	280 Bellavista Dr	12/12/2024 12:15	12/12/2024 12:17	12/12/2024 12:00				See Attachment	37.57119	-122.38538	Gravity Mainline; Manhole	See Attachment	Sewer spilled from MH 	60	See Attachment	N						60	Paved Surface; Street/Curb and Gutter (2 3)		See Attachment										12/12/2024 12:17	Spill calculation work sheet 	Spill calculation work sheet 	Debris from Construction; Debris-General		Gravity Mainline		Vitrified Clay		64	Spilled from MH to curb and gutter 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		containment restore flow set up vac truck downstream form wash down of area as well as disinfection. 	Added Sewer to Preventive Maintenance Program		NA		12/12/2024 16:00	NA		NA	12/12/2024 16:00														NA	NA	NA	NA	NA 	NA 	NA	NA	NA	
2	2SSO10135	Active	Foster City CS	Foster City PWD	898035	1.3	Certified	Frank E Schoening	Foster City PW Superintendent	16-DEC-24	16-DEC-24	16-DEC-24	Category 1 Spill	Pump Station #59 100 Lincoln Centre Dr. Foster City, CA.	12/13/2024 08:25	12/13/2024 08:15	12/13/2024 08:25	12/13/2024 10:20	24-6946		Pump Station at 100 Lincoln Centre Dr. Foster City. Overflowed due to electrical control failure. 	37.57053	-122.27004	Pump Station			2500	The pump Station 59 overflowed into the storm drain system that flows to the Lagoon system. 	Y	Storm Drains flow to lagoon and the Lagoon is pumped to the Bay.	0	0	2500 gallons entered the storm drain at pump station 59. Storm drain flows to the Lagoon. It was raining so the lagoon pumps were pumping the lagoon to the bay	2500	0	Drainage Conveyance System that discharges to surface water		Pump Station overflowed to the storm drain that flows to the Foster City Lagoon. the lagoon was being pumped to the bay at the time because of a rain storm	Y	37.57053	-122.27004							12/13/2024 08:36	SSCSS Image Comparison and flow meter at the time.	Operator on site at the start of spill and stop time was when pumps were back up running 11 minutes later	Pump Station Failure - Controls		Pump Station - Controls		Other (specify below)	Concrete wet well	30	Pump Station overflowed to the storm drain that flows to the Foster City Lagoon. the lagoon was being pumped to the bay at the time because of a rain storm	Y	Restored Flow		No containment. When pumps were started the spill was over. Very brief. flowed directly to the storm drain and then to lagoon and then pumped to bay. 	Repaired Facilities or Replaced Defect		Replaced PLC and UPS. 	Work has been completed	12/13/2024 08:36	When exercising the Emergency generator the PLC failed during power transfer and pumps did not come on. Once realized the pumps were run on manual stopping the spill.	N			Foster City Lagoon and Bay	Estuary		Foster City Lagoon and Bay	none	Other (specify below)	No public impact	NA	0	Y	N												
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	898036	1.2	Certified	Daniel Whitlock	Manager		29-JAN-25	29-JAN-25	Monthly Category 3 Spill	1780 Dolores St.	12/14/2024 12:59	12/14/2024 14:05	12/14/2024 12:05				Spill originated from water control boxes next to manhole N-32555.Spill ran down curb and gutter to 30th st and ended up in combined catch basin ( asset # N-65618)	37.74109	-122.42424	Other (specify below)	Two residential water meter boxes next to manhole 		660	Manhole N-32555 did not overflow but the water meter boxes next to it overflowed on to the curbside. Spill was recaptured down the street into catch basin N-65618.	N						660	Other (specify below); Paved Surface; Street/Curb and Gutter (2 3)	Combined catch basin that connects to combined system. N-65618	8  VCP Sewer asset P-125759 was blocked by a root mass, spill originated from two residential meter boxes next to manhole access for the main sewer listed. . Manhole next to water boxes was high but did not overflow. Spill traveled down approx.. 350' to 30th street and flowed into combined catch basin ( asset #N-65618)	Y	37.74109	-122.42424	37.7412	-122.42428	37.74173	-122.42433	37.74216	-122.42439	12/14/2024 14:50	Duration and flow method 	Duration and flow method .  Duration = 165 mins ( start 12:05 / Stop 2:50)  Flow rate = 4GPM  Equation =  165 mins X 4GPM = 660 Gallons  660 gallons total spill volume estimate 	Root Intrusion		Gravity Mainline		Vitrified Clay		22	None. No roads closed and signs posted.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	Disinfected area and returned all spill to combined system.	Flushed main sewer and restored flow. Cleaned manhole and section of main sewer. Disinfected sidewalk and curbside. Returned liquid sewage to asset N-65618.	Added Sewer to Preventive Maintenance Program; Post Spill CCTV		CCTV WO#8670142 found roots in main sewer P-125759.  		12/14/2024 15:40	Root intrusion in P-125759 caused the overflow.		None.	01/13/2025 10:49														N/A	N/A	None. Segment of sewer will be replaced as part of a larger project in May 2025. Until then it will be added to the PM program.	Segment of sewer will be replaced as part of a larger project in May 2025. Until then, it will be added to the PM program.	P-125759 P-338027 P-125759  	Segment of sewer will be replaced as part of a larger project in May 2025. Until then, it will be added to the PM program.	N/A	None	None.	
2	2SSO10165	Active	Petaluma City CS	Petaluma City PWD	898042	1.2	Certified	Daniel Herrera	Deputy Director of Operations	18-DEC-24	27-DEC-24	27-DEC-24	Category 1 Spill	Intersection of Payran St and Jefferson St. 	12/14/2024 06:50	12/14/2024 07:10	12/14/2024 06:50	12/14/2024 09:07	24-6966		SSMH Intersection of Payran at Jefferson Streets. 	38.23967	-122.62837	Manhole	N/A	N/A	12500	Within curb returns of the intersection of Payran Street and Jefferson Street. 	Y	Storm Drain Collection System	0	0	Wilson St Storm Pump Station Outfall	12500	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Surface Water		The spill originated at a sewer manhole within Payran and Jefferson Streets.  The flow mixed with stormwater flow and entered the stormwater conveyance system that delivers flow the the Wilson Street Pump station and ultimately discharges to the Petaluma River.  No flow from the SSO was recovered. 	Y	38.23967	-122.6284	38.23453	-122.62824					12/14/2024 07:52	The flow was estimated using calibrated flow examples discharging from sewer manholes. The flow from the manhole was identical to the calibrated 200 gpm flow example so that flow was used for the duration of the spill which was just over 1 hour. 	The spill start time was estimated when staff observed the SSO during checks during rain event.  Staff was onsite to observe the pump station stop flow and SSO stop. 	Flow Exceeded Capacity (Separate Collection System Only); Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Vitrified Clay		67	Not much impact. Contents of wastewater were almost entirely stormwater from a fairgrounds site with minimal activity at the time. 	Y	Cleaned Up (specify below); Mitigated Effects of Spill (specify below)	After storm, staff  cleared/cleaned manhole and pipeline, as well as stormwater pump station wet well. 	not much efforts at time of spill as it was during heavy rainfall event 	Adjusted Schedule/Method of Preventive Maintenance; Plan Rehabilitation or Replacement of Sewer		Priority replacement and upsizing of sewer main at lift station discharge.  This should be completed before end of winter.  Staff has adjusted pump discharge rate and has added location to patrolling during storm events. Also, management is adjusting spill response plan to make it easier to follow. 	Replace/upsize sewer pipeline  - March 2025. Adjusted pump rate and patrol during rainfall event - immediate.  Creation of cheat sheet for spill reponse plan - February 2025	12/14/2024 10:00	City Staff had upgraded a lift station which the city had recently taken responsibility of. Although pumps were replaced to match existing equipment, it is likely that new pumps were more efficient and able to push more water. This additional flow from the pumps were what caused the SSO in the system.  Also it was determined that excess rainfall was entering the collection system upstream of the lift station. 	N			Petaluma River	Slough		It is a natural river/stream that is tidal at the location of the spill.  	None	Other (specify below)	During high rainfall, there is no public use of the river/slough. 	City of Petaluma	0	N	N												
5F	5SSO10764	Active	Tehachapi, City Of CS	Tehachapi City	898043	1.3	Certified	Bryan Heffernan	Chief Plant Operator	17-DEC-24	07-JAN-25	07-JAN-25	Category 2 Spill	Melrose and Ash   City of Tehachapi	12/15/2024 11:30	12/15/2024 11:45	12/15/2024 11:30				manhole on melrose	35.12594	-118.45448	Gravity Mainline			2700	Spill was a very slow spill over the lid. The lid had little to no pressure of water coming up from the lid.	Y	curb and gutter. Used chlorine bleach to sanitize the area of the spill. 	0	0			0	Street/Curb and Gutter (2 3)		35.12594 -118.45448    	Y	35.12594	-118.45448							12/15/2024 13:45	We have an SOP with estimated water flow coming up from a manhole. The line was flowing at an average of 15-20 gallons per minute.  estimated flow was 2.25 hours. 	Call out was 11:30 am. Neighbor called in a sewer spill.  We had the line cleared by 1:45 pm	Collection System Maintenance Failure (specify below)		Gravity Mainline		Vitrified Clay		60	curb and gutter . 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below)	Chlorine bleach and rinsing the street area that flowed into the curb and gutter. 	Sewer machine to clear line. Shovel to clear any solids around lid. Chorine bleach to sanitize the street and curb and gutter. Rinse street and curb and gutter after sanitation. 	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance		Area has been treated for collections recently, but excessive wipes were found in the area. 	Rotor Rooter treated that area in January of 2023 	12/17/2024 08:39	Lots of wipes were found in the area after the flow was released. Cleaned wipes from sewer main after clog was released. 	N												N													
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	898045	1.1	Certified	Ameal McLaurin	Sewer Supervisor 2		18-DEC-24	18-DEC-24	Monthly Category 3 Spill	5519 Mc Millan Avenue, Oakland Ca	12/02/2024 08:38	12/02/2024 09:09	12/02/2024 08:15				Lateral clean out (private) overflowing at the driveway near the street curb and gutter.	37.69975	-122.14372	Lateral Clean Out (Private)			86	Lateral clean out (private) overflowing at the driveway near the street curb and gutter. The spill was contained with sandbags at the curb and gutter.	N						86	Paved Surface; Street/Curb and Gutter (2 3)		Lateral clean out (private) overflowing at the driveway near the street curb and gutter. The spill was contained with sandbags at the curb and gutter. The sewage was recovered, and the spill area was washed and cleaned.										12/02/2024 09:46	Vent hole estimation chart: .5  vent hole x 1  height = .94 GPM .94 GPM x 91 minutes = 86 gallons	Start time was based on eyewitness account. The end time was based on sewer crew restoring the flow in the mainline.	Debris-wipes/Non-disposables		Gravity Mainline		Vitrified Clay		125	Lateral clean out (private) overflowing at the driveway near the street curb and gutter. The spill was contained with sandbags at the curb and gutter.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	Contained and recovered the spill. Washed affected area and recovered grey water.	Contained the spill with sandbags, recovered the spill. Washed affected area and recovered grey water.	Added Sewer to Preventive Maintenance Program		Mainline has been added to 6-month hydro high frequency program, W.O. # 1580137		12/10/2024 11:29	CCTV inspection found the mainline to be in good condition, blockage was from debris-wipes non disposables.		N/A	12/10/2024 12:29														N/A	Mainline has been added to 6-month hydro high frequency program, W.O. # 1580137	Mainline has been added to 6-month hydro high frequency program, W.O. # 1580137	N/A	CCTV inspection W.O. # 1576405 found the mainline to be in good condition.	N/A	Mainline has been added to 6-month hydro high frequency program, W.O. # 1580137	CCTV inspection W.O. # 1576405 found the mainline to be in good condition. Mainline has been added to 6-month hydro high frequency program, W.O. # 1580137.	N/A	
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	898048	1.2	Certified	Daniel Whitlock	Manager	17-DEC-24	03-JAN-25	03-JAN-25	Category 2 Spill	2009 10th Ave.	12/16/2024 11:28	12/16/2024 12:25	12/16/2024 09:00				Spill was visible from easement manhole N-22900 over an easement.	37.75064	-122.46704	Manhole			38250	Spill started behind 2015 10th Ave. Spill ran down the backyard hill and made its way into the backyard and garage of 2009 10th Ave.	N						0	Building or Structure; Paved Surface		Spill started behind 2015 10th Ave. Spill rand down the backyard hill and made its way in to the backyard and garage of 2009 10th Ave.	Y	37.75064	-122.46704	37.75069	-122.46689	37.75073	-122.46678	37.75069	-122.46665	12/16/2024 13:15	Flow rate over time	Spill started at 9:00 am and ended at 1:15 pm on 12/16/2024.  Flow rate calculated as 150 gallons per minute from manhole spilling.  255 min x 150 gpm = 38250 gallons	Root Intrusion		Gravity Mainline		Vitrified Clay		93	Spill coming from easement manhole N-22900 and down into garage of 2009 10th Ave.	Y	Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow		Relieved blocked easement main sewer with vaccon truck. Property owner calling private remediation company to clean up spill.	Post Spill CCTV		WO# 8671689 CCTV'd the 8  sewer. No defects found. Completed 12/19/2024.	12/16/2024 9:00am - Spill Starts 12/16/2024 1:15 pm - Spill Ends 12/16/2024 1:15 pm - Clean up starts 12/16/2024 1:45 Clean Up Ends 12/19/2024 - CCTV of pipe completed	01/02/2025 08:38	Roots in easement P-122793 caused water to flow out of manhole N-22900 when rain started.	N												N													
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	898049	1.2	Certified	Daniel Whitlock	Manager	17-DEC-24	10-JAN-25	10-JAN-25	Category 2 Spill	Marin and Indiana St.	12/14/2024 05:49	12/14/2024 06:10	12/14/2024 03:45				Spill coming out of catch basins and manholes:  N-345837 N-49519 N-51468 N-51467 N-34064 N-72061	37.74881	-122.39033	Manhole			1242500	Spill occurred at intersection of Marin and Indiana	N						1242500	Other (specify below); Paved Surface; Street/Curb and Gutter (2 3)	Combined Storm drain.	Spill coming from manholes and catch basins at Marin and Indiana:  N-345837 N-34064 N-49519 N-51468 N-51467 N-72061	Y	37.74881	-122.39033							12/14/2024 13:40	H&H Hydraulics	H&H Hydraulics used manholes N-72061, N-345837, and N-34062 to run model.	Other (specify below); Surcharged Pipe (Combined Collection System Only)	Rainfall exceeded capacity of sewer.	Gravity Mainline		Concrete		31	No road closures or impacts	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below)	Returned all spill to combined sewer system.	Put out A frames with warning signs of sewage in area. Cleaned and disinfected area of spill with vaccon.	Other (specify below)	N/A Rainfall exceeded capacity of the sewer.	N/A rainfall exceeded capacity of the sewer.	12/14/2024 03:45 am - Spill Starts 12/14/2024 13:40 am - Spill Ends 12/14/2024 08:30 Am - Cleanup Begins 12/14/2024 09:10 am - Cleanup Ends	01/09/2025 07:35	Heavy storm caused rainfall to exceed capacity.	N												N													
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	898050	1.3	Certified	Ameal McLaurin	Sewer Supervisor 2		03-JAN-25	03-JAN-25	Monthly Category 3 Spill	5960 Margarido Drive, Oakland Ca	12/09/2024 09:44	12/09/2024 10:31	12/09/2024 09:40				Manhole was overflowing in the street; the sewage was flowing to the curb and gutter. 	37.84522	-122.24067	Manhole			162	Manhole was overflowing in the street; the sewage was flowing to the curb and gutter. The sewage mingled with clean and clear water flowing in the gutter. The sewage was contained and recovered at the gutter and storm inlet, before it entered the conveyance system.	N						162	Paved Surface; Street/Curb and Gutter (2 3)		Manhole was overflowing in the street; the sewage was flowing to the curb and gutter. The sewage mingled with clean and clear water flowing in the gutter. The sewage was contained and recovered at the gutter and storm inlet, before it entered the conveyance system.										12/09/2024 11:01	2 GPM x 81 minutes = 162 gallons	Start time was based on eyewitness account. The end time was based on sewer crew restoring the flow in the mainline.	Root Intrusion		Gravity Mainline		Vitrified Clay		125	Manhole was overflowing in the street; the sewage was flowing to the curb and gutter. The sewage mingled with clean and clear water flowing in the gutter. The sewage was contained and recovered at the gutter and storm inlet, before it entered the conveyance system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	Washed and recovered all the sewage from the spill.	Sewage was contained at the gutter area, the storm inlet was blocked   with sandbags, all the sewage from the spill was recovered and returned to the sewer system.	Added Sewer to Preventive Maintenance Program		Mainline has been placed on a 3-month hydro high frequency maintenance program, W. O. # 1583325.		12/20/2024 14:29	CCTV inspection found 6  VCP reduced to 5  VCP. Root intrusion was the cause of the blockage.		CCTV inspection found 6  VCP reduced to 5  VCP.	12/20/2024 14:29														N/A	Mainline has been placed on a 3-month hydro high frequency maintenance program, W. O. # 1583325.	Mainline has been placed on a 3-month hydro high frequency maintenance program, W. O. # 1583325.	 Mainline has been placed on CIP, W.O. # 1583342.	CCTV inspection hasn't been completed. W.O. # 1581181 	Mainline has been placed on CIP, W.O. # 1583342.	Mainline has been placed on a 3-month hydro high frequency maintenance program, W. O. # 1583325. Mainline has been placed on CIP, W.O. # 1583342.	Mainline has been placed on a 3-month hydro high frequency maintenance program, W. O. # 1583325. Mainline has been placed on CIP, W.O. # 1583342.	CCTV inspection found 6  VCP reduced to 5  VCP.	
2	2SSO10115	Active	South San Francisco City CS	South San Francisco City	898051	1.1	Certified	David A. Bockhaus	Deputy Director of Public Works		18-DEC-24	18-DEC-24	Monthly Category 3 Spill	177 South Airport Blvd.	11/07/2024 14:14	11/07/2024 14:29	11/07/2024 12:59				Sewer spill started flowing out of manhole (wL2670) located in the right turn lane at the intersection of Gateway Blvd. and S. Airport Blvd.	37.649823	-122.4054	Gravity Mainline; Manhole			135	Sewer spill started flowing out of manhole (wL2670) located in the right turn lane at the intersection of Gateway Blvd. and S. Airport Blvd. Due to the manhole location in a high traffic area, the majority of the spill was spread into the roadway the opposite direction of the nearest catch basin until it reached the curb and gutter. The spill was fully recovered with the Vaccon.	N						135	Paved Surface; Street/Curb and Gutter (2 3)		Sewer spill started flowing out of manhole (wL2670) located in the right turn lane at the intersection of Gateway Blvd. and S. Airport Blvd. Due to the manhole location in a high traffic area, the majority of the spill was spread into the roadway the opposite direction of the nearest catch basin until it reached the curb and gutter. The spill was fully recovered with the Vaccon.	Y	37.649823	-122.4054							11/07/2024 14:36	The duration and flow rate method was used in conjunction with the Area/Volume method for the spill volume estimation.  The manhole was estimated to be flowing at a rate of 1.4gpm out of its 7/8  pick hole. This was taken from the SMART Sewer Overflow & Backup Field Guide by DKF Solutions Group.   The spill was broken down into three sections and each section was calculated for the amount of its individual spill amount. Once all three sections were found they were added together giving us our total estimated spill volume. 	Start time was determined by spill volume divided by flow rate, which gave us our duration time of spill.   End time was determined when the blockage was relieved, and the normal flow rate was. This time was documented by crew.	Root Intrusion		Gravity Mainline; Manhole		Vitrified Clay		20	The spill started out of manhole (wL2670) from a 7/8  pick hole. Due to the manhole location the majority of the spill was spread into the road until it reached the curb and gutter, where it was fully recovered by the Vaccon.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Spill response included the full recovery of the spill as well as disinfecting the affected area.	Added Sewer to Preventive Maintenance Program		This line segment is being switched to the quarterly flushing schedule and is to be inspected before and after by our CCTV crew.		11/07/2024 14:36	After flushing the sewer mainline from downstream to clear the blockage, a mass of roots was recovered and removed. The mass of roots was determined to be the cause of the plug and spill.		CCTV scheduled for 12/19/24 to inspect root intrusion.	12/19/2024 09:30														N/A	May need to be added to the sewer line root schedule for foaming. This will be dependent on the invasiveness of the roots.	This line is being put on the quarterly preventative maintenance schedule.	N/A	CCTV inspection set for 12/19/2024	N/A	The sewer crew has moved this line to the quarterly schedule.	All spill response procedures and goals were met. No modifications needed.	CCTV scheduled for 12/19/24 to inspect root intrusion.	
5S	5SSO10890	Active	City Of Antioch CS	Antioch City	898056	1.2	Certified	Toby A Beach	Collection System Superintendent		23-DEC-24	23-DEC-24	Monthly Category 3 Spill	1109 Macaulay St	11/21/2024 12:23	11/21/2024 12:31	11/21/2024 12:17				Spill around manhole F22-3-018 in roadway at 1109 Macaulay St	38.00981	-121.81698	Manhole	N/A	none	57	Spill traveled from manhole, down curb and gutter, into storm catch basin. Did not leave storm catch basin See photos attached	Y	Sewerage made it into the storm catch basin but did not get any further due to a 2-inch lip from bottom of basin. Crew vacuumed and cleaned catch basin.	4				57	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		street/curb and gutter paved surface Drainage Conveyance system	Y	38.0097	-121.81721							11/21/2024 12:39	The spill volume estimations were calculated using the Area/Volume Method.  A sketch is attached	We interviewed all surrounding neighbors to gather information to determine our estimated spill start time. The stop time was determined by the time the responding crew relieved the plug in our main. 	Debris-Rags		Gravity Mainline		Vitrified Clay		58	The spill was contained to a paved surface and the final destination was a catch basin. Spill was fully recovered. No harmful impact.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Spill was self contained at final spill destination. Added absorbent to stop flow into catch basin.  Cleared blockage to stop spill. The area and catch basin was cleaned and vacuumed with combo truck.	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Televised sewer main and found paper towels to be the caused of the spill. A 6 month follow up created to prevent any future issues.  		11/21/2024 13:40	we televised the main line and found paper towels to be caused of the stoppage. Added line to a 6-month cctv follow-up.		Investigation has been completed	12/05/2024 13:41														no regulatory action taken	6 month follow up to be televised	N/A	N/A	Main sewer line was televised on 12/05/2024 no structural defects found, continue with 6 month follow up.	No Capital improvement needed	CCTV report generated for this line segment.  Noted in our sewer spill debriefing meeting.	Based on review of our response, no modifications are required.	Investigation has been completed	
4	4SSO10431	Active	Santa Monica City CS	Santa Monica City	898065	1.7	Certified	Tyson Knight	Water Resource Protection Specialist 	18-DEC-24	19-DEC-24	19-DEC-24	Category 1 Spill	1805 California Ave 	12/17/2024 08:51	12/17/2024 09:15	12/17/2024 08:30			19-DEC-24	Amanda a resident, called in at 8:51 am regarding water flooding the sidewalk on California Ave between 18th and 19th St. City of Santa Monica wastewater crew responded to the call around 9:15 am. Approximately 100 gallons went into the storm drain. The wastewater crew use CCTV camera to find the blockage and hydro jetted the city's main line to clear a blockage. The contaminated area was disinfected, raised, and water was captured utilizing a vactor truck. Wilshire Diversion was in operation and was able to divert all of the spill flow back to the sanitary sewer. 	34.02388	-118.49615	Lateral Clean Out (Public)			375	Please see attached document 	Y	approximately 100 gallons of discarded water entered the storm drain  	275	100	1805 California Ave 	0	375	Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		Discharged water flooding the sidewalk on California Ave. between 18th and 19th St., on the north side down toward Wilshire Blvd  	Y	34.03156	-118.48659							12/17/2024 10:30	visual	Please see attached file  	Root Intrusion		Gravity Mainline		Vitrified Clay		104	Please see attached file	N	Other Enforcement Agency Notified; Property Owner Notified; Restored Flow		Please see attached file	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Please see attached file	Please see attached file	12/17/2024 10:30	Please see attached file	N			none 	Other (specify below)	none	None	None	Restricted Public Access; Temporary Restricted Use		City of Santa Monica 	0	N	N												
4	4SSO11365	Active	Unincorporated County Area CSMD South/County Sanitation District CS	Los Angeles Cnty DPW	898068	1.2	Certified	Eric Liu	Civil Engineer		13-JAN-25	13-JAN-25	Monthly Category 3 Spill	2429 - 0119 (1615 Mc Kinley Ave, La Verne, CA) Unincorporated South	12/16/2024 08:58	12/16/2024 09:30	12/16/2024 08:40				CSMD Map Sheet No. 2429 MMS No. 9176696 Manhole No. 119 was overflowing.	34.09246	-117.77771	Manhole	Manhole No. 119		200	Upon arrival, the crew found that manhole 119 was overflowing and self-contained in a dirt field. The sewer spill discharged onto the land, and 50 gallons were recovered. 	N						50	Unpaved Surface		Upon arrival, the crew found that manhole 119 was overflowing and self-contained in a dirt field. The sewer spill discharged onto the land, and 50 gallons were recovered. 	N									12/16/2024 11:40	CWEA SSCSC Manhole Gauge.	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops. 	Debris-Rags		Gravity Mainline		Vitrified Clay		65	Upon arrival, the crew found that manhole 119 was overflowing and self-contained in a dirt field. The sewer spill discharged onto the land, and 50 gallons were recovered. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow		Set containment around manhole 119. Hydro-cleaned the mainline from T/L to 119 in Bracket Airfield, breaking down a heavy rag stoppage. Cleanup was completed, pictures were taken, and all required agencies were notified. 	Other (specify below)	We will inspect sewer using CCTV to determine if adjustments or further actions are needed. 	N/A		12/16/2024 13:00	N/A		We will inspect sewer using CCTV to determine if adjustments or further actions are needed. 	02/16/2025 09:04														N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	We will inspect sewer using CCTV to determine if adjustments or further actions are needed. 	
2	2SSO10210	Active	UC Berkeley CS	UC Berkeley	898069	1.2	Certified	Jimmy Manibusan	Utilities Operations Manager	19-DEC-24	19-DEC-24	19-DEC-24	Category 1 Spill	Moffitt Library	12/16/2024 15:10	12/16/2024 16:00	12/16/2024 14:40				Moffitt Library Cleanout is where spill exited the collection system and flowed across a paved area and into an adjacent stormwater trench drain, which led to a catch basin. 	37.87283	-122.26096	Inside Building or Structure; Lateral Clean Out (Public)		Spill appeared inside the building, coming up through bathroom floor drains at Moffitt Library Floor 2, and flowing down into Floor 1, and spreading across floors.	215	Spill flowed across a paved area and into an adjacent stormwater trench drain, which led to a catch basin. Drainage conveyance system is operated by UC Berkeley. Estimated 15 gallons exited the system at the cleanout.  The spill also appeared inside Moffitt Library, appearing at bathroom floor drains on Floor 2 and flowing down into Floor 1. Estimated 200 gallons exited the system at the bathroom floor drains and spread through the building interior.	Y	Spill exited a cleanout and flowed into a stormwater trench drain, which led to a catch basin. Drainage conveyance system is operated by UC Berkeley. The trench drain and catch basin were cleaned out, with wash water and estimated 5 gallons of sewage directed to the sanitary sewer system.	5	0	Catch basin, when full, discharges to the North Fork of Strawberry Creek via an approx. 154-foot pipe that joins another pipe carrying storm runoff, and then is carried approx. 74 feet to an outfall in the North Fork of Strawberry Creek. A large volume of surfacewater and rain runoff was flowing through the creek due to rainfall earlier in the day, as well as through the outfall into the creek.	10	0	Building or Structure; Drainage Conveyance System; Surface Water		Moffitt Library Cleanout is where spill exited the collection system and flowed across a paved area and into an adjacent stormwater trench drain, which led to a catch basin, and flowed to an outfall to Strawberry Creek. The spill also spread within Moffitt Library on portions of the 2nd and 1st floors. 	Y	37.87257	-122.26165	37.87273	-122.26072					12/16/2024 16:15	For spill volume exiting from the cleanout, estimation done using: 1) eyeball estimate and approx. volume in catch basin; and 2) slow trickle flow rate observed upon operator arrival. Upon arrival on scene, the operators did not observe the catch basin to have sewage and rain runoff at a height where the contents could discharge to the pipe connecting to an outfall at the creek, but conservatively estimated 10 gallons discharged to surface water. For spill volume exiting inside the building from bathroom floor drains, estimation was done by measured volume using: 1) photographs of areas needing remediation/cleanup with floor tiles of known size; and 2) floor plans of bathrooms to calculate floor coverage. Approximate spill depth of 1/16 inch to 1/4 inch across flooring surfaces.	Spill start time estimated based on reports of a flood inside the library at 3:10 pm; confirmed source of water as the 2nd floor bathroom floor drains at 3:15 pm. 2nd floor was unoccupied. Assumed spill started 30 minutes before ovserving water on 1st floor of building, coming down from 2nd floor.  Spill end time is 4:15 pm, when plumbers closed bathrooms in the buildings and the catch basin was plugged.	Root Intrusion		Upper Lateral		Cast Iron; Polyvinyl Chloride (PVC)		54	Impacts of the spill on surface water (Strawberry Creek, North Fork) were not visible. Significant rainfall occurred earlier in the day, and rainfall on prior days (12/12/24, 12/13/24, and 12/14/24), such that turbidity was high in the creek and flow rate was fast, with any sewage likely mixing into the water column.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		UC Berkeley is the property owner and operator of the sanitary sewer and drainage conveyance. Upon confirming sewage spill around 3:15 pm, library staff closed 1st floor of library and evacuated students. The 2nd floor was unoccupied. Bathrooms in the building were closed at 4 pm when campus plumbers arrived. Campus custodians began cleaning up inside library, but a restoration/cleanup vendor was engaged that evening, given the spread of the spill in the building. At exterior, the catch basin was plugged by 4:15 pm by campus utility plumbers, who pumped the catch basin contents into the sanitary sewer and cleaned up the trench drain and catch basin, routing wash water to the sanitary sewer. Campus utility plumbers cleared roots out of the lateral and restored flow.	Other (specify below)	Cleared out roots from the lateral to restore flow.	Corrective action completed as of 7 PM on 12/16/24. Blockage due to roots was identified as the cause; roots were cleared from the lateral and flow restored.	Corrective action completed as of 7 PM on 12/16/24. Blockage due to roots was identified as the cause; roots were cleared from the lateral and flow restored.	12/16/2024 19:00	During spill response, the utility plumbers identified the spill cause as root intrusion and cleared roots.	N			Strawberry Creek, North Fork	Stream/Creek		High turbidity and fast flowing due to significant rainfall earlier in the day, and rainfall on prior days (12/12/24, 12/13/24, and 12/14/24).	No visible impacts on aquatic life due to spill were observed. The fast flowing creek and turbid water make it difficult to observe aquatic life.	Other (specify below)	A significant rainfall event occurred earlier in the day that adequately flushed the contaminants from the creek. Rain runoff continued to enter campus drainage conveyance after the storm had ceased.	UC Berkeley EH&S	0	N	N												
2	2SSO10115	Active	South San Francisco City CS	South San Francisco City	898072	1.1	Certified	David A. Bockhaus	Deputy Director of Public Works		05-MAR-25	05-MAR-25	Monthly Category 3 Spill	150 S. Linden	11/07/2024 08:31	11/07/2024 08:42	11/07/2024 08:22				Spill originated out of the manhole (wL2885) located in the planter box in front of the 150 S. Linden Ave business. Location pictures attached in attachments of spill origination area.	37.643555	-122.41434	Manhole		0	89	The spill came out of the manhole (wL2885) located in the planter box in front of 150 S. Linden Ave. It travel down the slope of the planter box onto the sidewalk then into the curb/gutter line flowing north where it was fully recovered by the Vaccon set up ahead of the catch basin.	N						89	Street/Curb and Gutter (2 3); Unpaved Surface		Spill end point was the concrete curb/gutter on S. Linden Ave. where it was fully recovered by the Vaccon ahead of the catch basin at the coordinates listed below.	Y	37.644212	-122.414046							11/07/2024 09:06	Spill estimate was determined using the Area/Volume formula after taking the measurements and pictures at the location. This formula was able to be used to determine total gallons spilled because the spill was completely on the surface.	The data relied upon to use the Area/Volume formula was recording the length, width and depth of the different sections of the spill.	Fats, Oil and Grease (FOG)		Gravity Mainline; Manhole		Vitrified Clay		22	The spill started at 8:22 am and came out of the 7/8  pick hole. The spill flowed along the dirt in the planter box onto the sidewalk then onto the curb/gutter line where it was recovered by the vaccon before entering the storm system	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Once the spill was contained, flow restored and measurments/pictures were taken the entire effected area was washed down and sanitized then recovered by the Vaccon and returned to the sanitary sewer system.	Added Sewer to Preventive Maintenance Program; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		CCTV scheduled to be preformed on 12-19-24. Sewer line has been added to flushing program to prevent blockage.		11/07/2024 09:06	Heavy grease deposits		N/A	12/19/2024 10:00														Environmental compliance agency contacted to preform investigation of grease disposal at 150 S. Linden Ave business.	Sewer line added to preventative maintenance schedule as it was unknown on the City sewer maps.	Added to 3 Month schedule	N/A	N/A	N/A	N/A	N/A	N/A	
4	4SSO10421	Active	Redondo Beach City CS	Redondo Beach City	898075	1.2	Certified	Geraldine Trivedi	Civil Engineer		07-JAN-25	07-JAN-25	Monthly Category 3 Spill	550 Avenue A, Redondo Beach	12/05/2024 21:07	12/05/2024 21:29	12/05/2024 21:07				SSO appeared in street coming from a manhole cover.  SSO resulting from a main line blockage caused by tree root intrusion.	33.82754	-118.383942	Manhole			66	SSO photos and map are included as attachments to this report.  SSO wet area from manhole and actor truck actions captured in photos. 	Y	SSO reached a stormdrain catch basin. The sewer crew recovered the SSO volume that entered the catch basin by accessing the downstream catch basin with a vactor truck, jetting the stormdrain, and recovering the SSO.	66				66	Drainage Conveyance System; Street/Curb and Gutter (2 3)		SSO destination was street, curb, gutter and stormdrain.  SSO was fully recovered.										12/05/2024 21:56	The SSO volume estimate was calculated by using actual field measurements of the wet area in the street, curb, and gutter. In addition, the volume estimate was calculated by the gallon-per-minute estimate multiplied by the number of minutes estimated for the SSO. 	The SSO volume estimate was calculated by using actual field measurements of the wet area in the street, curb, and gutter. In addition, the volume estimate was calculated by the gallon-per-minute estimate multiplied by the number of minutes estimated for the SSO. 	Root Intrusion		Gravity Mainline		Vitrified Clay		60	No impact to receiving waters, SSO fully recovered. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		SSO was fully captured, cleaned up, and returned to the Sanitary Sewer System.	Added Sewer to Preventive Maintenance Program		The main line has been added to the root treatment program.		12/05/2024 21:56	N/A		N/A	12/05/2024 21:56														N/A	The main line has been added to the root treatment program.	The main line has been added to the root treatment program.	N/A	N/A	N/A	N/A	N/A	N/A	
8	8SSO10605	Active	Stanton City CS	Stanton City	898083	1.5	Certified	Cesar Rangel	Director of Public Works/City Engineer		23-DEC-24	23-DEC-24	Monthly Category 3 Spill	10800 Dale	12/18/2024 19:15	12/18/2024 21:05	12/18/2024 19:00				spill located on Dale Avenue (cross street Monroe Avenue)	33.806185	-117.98449	Manhole			250	Photograph available under Attachments Tab	Y	Catch Basin	240				240	Drainage Conveyance System; Street/Curb and Gutter (2 3)		spill located on Dale Avenue (cross street Monroe Avenue)										12/18/2024 19:50	Using the SSCSC manhole overflow gauge, a flow rate of 5 gpm was assumed	Using the SSCSC manhole overflow gauge, a flow rate of 5 gpm was assumed	Fats, Oil and Grease (FOG)		Manhole		Vitrified Clay		50	No impact. spill was contained at the catch basin, and before it reached surface water.	N	Contained All or Portion of Spill; Mitigated Effects of Spill (specify below)		Immediate spill containment and vacuumed.	Adjusted Schedule/Method of Preventive Maintenance		n/a		12/18/2024 19:50	grease buildup		n/a	12/18/2024 21:54														n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a	
2	2SSO10172	Active	Ross Valley Sanitary District CS	Ross Valley SD	898093	1.2	Certified	Paul Bruemmer	O&M Manager 	20-DEC-24	27-DEC-24	27-DEC-24	Category 1 Spill	97 Frances Ave, Larkspur 	12/17/2024 10:22	12/17/2024 10:32	12/17/2024 09:00	12/17/2024 11:12	24-7020		A blockage occurred approximately 40' down stream of MHL430.045 in a 6  VCP gravity main line. The spill appearance point was MH L430.045. 	37.94519	-122.5495	Manhole			1020	The spill exited the collection system @ MH L430.045, traveled approximately 100' down the curb and gutter where it entered the storm drain DI in front of 60 Francis Ave. From that location, the spill traveled through the storm drain system  on Francis Ave until the storm drain system  turned on Magnolia Ave. From Magnolia Ave, the spill traveled approximately 40' more, where it ultimately discharged into Corte Madera Creek. 	Y	The drainage conveyance system is owned by the City of Larkspur. On Francis Ave, it appears to be comprised of a 36  pipe with several DI boxes collecting storm run off and an additional storm drain system combines into the same system at Arbor St x Francis Ave. At the time of the spill, the storm drain system was running at approximately 40% capacity because of recent storms effecting the area. 	0	1020	The storm drain system discharges to a marshy outfall along the Corte Madera Creek. 	1020	1020	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		Corte Madera creek. The spill exited the collection system @ MH L430.045, traveled approximately 100' down the curb and gutter where it entered the storm drain DI in front of 60 Francis Ave. From that location, the spill traveled through the storm drain system  on Francis Ave until the storm drain system  turned on Magnolia Ave. From Magnolia Ave, the spill traveled approximately 40' more, where it ultimately discharged into Corte Madera Creek. 	Y	37.945501	122.54933	37.94725	122.54595					12/17/2024 12:15	Staff utilized the RVSD flow estimation chart to estimate the flow from the manhole, then used duration and flow method to calculate the volume- 10gpm x 102 min =1020 gal 	The start time was reported by caller who witnessed the spill stat at 9am and the stop time was witnessed by responding staff that broke the blockage and observed the spill stop at 10:42am 	Debris-General; Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		70	no impact of the spill observed 	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow	Staff utilized vac truck to wash down and vac up spill remnant on street and catch basin 	staff responded to customer call at 10:22am to the report of overflowing manhole. Staff arrived at the site at 10:32am and documented the spill at the appearance point for volume estimation, Staff immediately worked to break the blockage within the line and called for a vac truck for cleanup activities, staff called CAL OES to report cat 1 as the spill reached a flowing storm drain and not able to capture spill. Staff cleaned the street and catch basin and proceeded to document the spill. staff notified the city of Larkspur Department of public work to inform them of the spill into the storm system. 	Post Spill CCTV		Staff will review the cleaning schedule of the line.  CCTV work was performed the same day to accurately identify the cause of the blockage. roots had entered the system possible lateral cleaning by plumber and lodged on a pipe joint capturing debris rock sand and general debris leading to a blockage    	flushing schedule review 1 month 1/17/25	12/17/2024 12:15	Roots had entered the system from possible lateral cleaning by plumber and lodged on a pipe joint capturing debris rock sand and general debris leading to a blockage. staff will review cleaning schedule of the line to ensure appropriate   	Y	scheduling CCTV crew to get full picture of failure point where debris accumulated, and corrective action required to repair deficiencies if needed  	01/17/2025 13:07	Corta Madera Creek 	Stream/Creek; Wetland		Marsh area part of Corte Madera creek 	none observed 	Other (specify below)	no closures or impacts observed 	N/A	0	N	N											scheduling CCTV crew to get full picture of failure point where debris accumulated, and corrective action required to repair deficiencies if needed  	
3	3SSO10332	Active	City of Morgan Hill CS	City of Morgan Hill	898094	1.1	Certified	Chris Ghione	Public Services Director		19-DEC-24	19-DEC-24	Monthly Category 3 Spill	17121 Parkview Dr.	11/20/2024 10:01	11/20/2024 10:17	01/11/2024 09:40				Spill was a force main break, 4' underground, worked its way to the surface and spilled onto dirt and ran down hill next to roadway	37.148455	-121.597159	Force Main			385	Spill came up through the dirt and washed down the hillside soaking into the ground 	N		0				0	Unpaved Surface		spill was contained in the dirt area within a 24' x 30' pattern. 										12/19/2024 09:50	Area volume Time length of spill is best estimation since no one saw it start or end, used SCADA data to determine when pumps started and stopped. but non way to know when it broke the surface. all the spill soaked into dirt and no solids were found as it was most likely filtered through the dirt. 	Used SCADA data	Pipe Structural Problem/Failure - Controls		Force Main		Polyvinyl Chloride (PVC)		45	Spill was absorbed int the dirt, no solids found. 	N	Cleaned Up (specify below); Restored Flow	washed off shoulder of roadway. 	Spill had stopped before arrival, was already soaked into dirt, second responder went straight to station and turned off pumps, called for crew to mobilize and bring up repair couplings and pipe. excavated force main and cut out break and repaired the pipe. Turned station on and tested for leaks.  back filled area	Repaired Facilities or Replaced Defect		Force main is on a CIP plan 		11/20/2024 01:15	Spill was caused by aging force main. It was installed without sand using native materials 40 + years ago 		N/A 	11/20/2024 13:16														N/A 	N/A	N/A	Lift Station and Force main is on a CIP plan	Repaired pipe segment. 	Yes, station is due to be rebuilt and force main replaced 	N/A	N/A 	N/A 	
5S	5SSO10891	Active	City Of Brentwood CS	Brentwood City	898098	1.2	Certified	Mark Huber	Wastewater Operations Manager		07-JAN-25	07-JAN-25	Monthly Category 3 Spill	1772 Brentwood Blvd.	12/09/2024 12:05	12/09/2024 12:17	12/07/2024 13:30				Upper lateral cleanout 	37.951	121.695	Lower Lateral (Private)			547	6ftx3ft total affected area around the upper lateral cleanout.	N						0	Unpaved Surface		Spill contained in a 6ftx3ft area around the upper lateral cleanout. 	Y	37.951	-121.698							12/09/2024 12:43	Based on the interview with the resident. She witnessed the exact time the sewer started to exit the upper cleanout.  also, she described the water usage over the duration of the spill.  Volume is based on the average's 	The start time was based in the interview. The end time was based on the plug break. also, the resident was advised to stop running water. 	Debris-General		Lower Lateral		Vitrified Clay		74	6ftx3ft concrete walkway and landscape area around the upper lateral cleanout. 	N	Cleaned Up (specify below); Restored Flow	jet cleaned the lower lateral to break the blockage. 	after flow was restored, the crew picked up the spill debris (paper and waste) Washed down the affected area.	Inspected Sewer Using CCTV to Determine Cause		No further cation needed 		12/09/2024 13:10	The CCTV findings show the lower lateral pipe was in fair shape with a slight offset at the sewer main connection. not enough to cause the blockage alone. Unknown Foreign object (UFO) was the cause of the plug.  		none	12/09/2024 13:10														none	none	none	none	no repairs needed	none	none	none	none	
5R	5SSO10845	Active	Red Bluff CS	Red Bluff City 	898102	1.2	Certified	Dusty Brown	Wastewater Collections Supervisor	20-DEC-24	20-DEC-24	20-DEC-24	Category 1 Spill	Food Max	12/17/2024 11:00	12/17/2024 11:15	12/17/2024 08:00	12/17/2024 12:02	24-7022		Came out of Food Max grease interceptor and directly into storm drain.	40.18109	-122.22905	Other (specify below)	grease interceptor		2307	From storm drain to Sacramento River.	Y	Through storm drainpipe.	600	0	Storm drain outlet into the Sacramento River. Near the KOA campground on Lake Ave.	1707	600	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Unpaved Surface		Sacramento River	Y	40.18512	-122.23085							12/17/2024 11:35	Water usage for all connected upstream of spill. Estimated GPM.	Spill start time estimated from customer phone call. Spill end time with City crew mitigating blockage in pipe.	Debris-Rags; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Other (specify below)	Abspestos Pipe.	59	Spilled into storm drain	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Flushed line to eliminate blockage. vac truck to clean up spill in storm drain.	Adjusted Schedule/Method of Preventive Maintenance		increase maintenance activity in that zone.	increase visual inspections to weekly.	12/17/2024 14:30	found abnormally high amount of non-flushable wipes and FOG in the line.	N			Sacramento River	River		Sacramento River	no impact observed.	Other (specify below)	No impact.	Tehama County Enviromental Health.	0	N	N												
2	2SSO10217	Active	West Valley Sd CS	West Valley SD	898112	1.2	Amended	Kelvin Hatchett	Operations Supervisor	20-DEC-24	02-JAN-25	02-JAN-25	Category 1 Spill	Happy Acres/Shannon Rd MH# 9-024-82	12/18/2024 08:30	12/18/2024 09:00	12/17/2024 04:30	12/18/2024 10:05	24-7047		Latitude 37.22733   longitude -121.94703. Manhole overflow in intersection of Happy acres and Shannon rd	37.22733	-121.94703	Manhole			7454	Spill traveled from manhole across roadway to a storm inlet. Entering Short Creek approximately traveling 100 feet downstream. Photos attached. 	Y	Storm Catch basin inlet with a corrugated 10  pipe.	0	0	There was only one appearance point. See attached photos.	7454	6500	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		Spill appearance point was a manhole at the intersection of Happy Acres rd and Shannon rd. Spill travel down roadway into a catch basin and then into Short Creek  start coordinates lat:  37.22739  long: -121.94704  end coordinates Lat: 37.22790 long: -121.94787 .	Y	37.22739	-121.94704	37.2278	-121.94736	37.22774	-121.94761	37.2279	-121.94787	12/18/2024 09:10	Spill Volume based on number of single family home connections upstream of blockage (45) times 186 gallons/SFR times duration of spill (5812 gal).  This volume is added to the amount of water normally pooled in the creek (1642 gal).  For a total of 7454 gal.	Passer by noticed water coming out of manhole on roadway around 6 pm It was assumed spill started 1 1/2 hours prior to passer by noticing spill. the Spill end time was noted by crew lead upon breaking the mainline stoppage.	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		55	Short creek impacted creek bed saturated.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Using Vacuum Combination unit crews vacuumed up spill in effected parts of creek. washed down roadway and also vacuumed as a precaution cleaned and vacuumed catch basin. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Frequency Changed from 24 month to 12 month 12/20/2024   Upstream mainlines CCTV to inspect for fog 12/23/2024  CCTV in 6 month to see grease accumulation 6/25/2025 	Frequency Changed from 24 month to 12 month12/20/2024   Upstream mainlines CCTV to inspect for fog 12/23/2024  CCTV in 6 month to see grease accumulation 6/25/2025 	12/20/2024 14:30	Follow up CCTV revealed root intrusion and grease blockage in mainline.	N			Short Creek	Stream/Creek		Small creek beside roadway	None	Other (specify below)	Impacted creek is not accessible by public.	West Valley sanitation district	0	N	N												
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	898119	1.2	Certified	Gerald Watson	Sanitation Wastewater Manager III		03-FEB-25	03-FEB-25	Monthly Category 3 Spill	3601 North Knobhill Drive	12/21/2024 17:35	12/21/2024 18:45	12/21/2024 17:35				The initial crew arrived at 6:45 P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased	34.13631	-118.450593	Manhole			173	Sanitary Sewer Overflow	N	No sewage entered the drainage system.					0	Other (specify below)	The entire back up amount soaked into the ground.	34.136310 -118.450593	Y	34.13631	-118.450593							12/21/2024 19:35	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.	Spill flowrate and volume determination based on flowout pickhole or opening Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening0.5inches Flowrate per pickole/opening (gpm)1gpm # of pickholes/openings1 Total flowrate (gpm)1gpm Duration of spill (minutes)120minutes Total flow (gallons)173gallons 	Root Intrusion		Gravity Mainline		Vitrified Clay		68	It was estimated that approximately 173 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.	N	Restored Flow		On Saturday, December 21, 2024, at 05:35 PM., the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 3601 North Knobhill Drive (562-A6). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 07:35 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.    It was estimated that approximately 173 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground. 	Inspected Sewer Using CCTV to Determine Cause		On Saturday, December 21, 2024, at 05:35 PM., the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 3601 North Knobhill Drive (562-A6). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 07:35 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.    It was estimated that approximately 173 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground. 		12/21/2024 19:35	On Saturday, December 21, 2024, at 05:35 PM., the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 3601 North Knobhill Drive (562-A6). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 07:35 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.    It was estimated that approximately 173 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground. 		None at this time	12/21/2024 19:35														None at this time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	None at this time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	None at this time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	On Saturday, December 21, 2024, at 05:35 PM., the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 3601 North Knobhill Drive (562-A6). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 07:35 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.    It was estimated that approximately 173 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground. 	None at this time	
2	2SSO10179	Active	San Jose City CS	San Jose City	898127	1.2	Certified	Ben Nguyen	Senior Engineer	23-DEC-24	06-JAN-25	06-JAN-25	Category 2 Spill	2855 Stevens Creek Blvd, San Jose CA 95050	12/22/2024 11:43	12/22/2024 12:10	12/21/2024 22:00				The spill originated at the underground employee parking structure of the Valley Fair mall at 2855 Stevens Creek Blvd.  The cleanout cap was popped by the pressure of the sewage.	37.32537	-121.94205	Inside Building or Structure; Lateral Clean Out (Private)			48128	The spill discharged from the cleanout inside the garage at 2855 Stevens Creek Blvd San Jose.  The spill spreads out on the floor of the parking garage.	N						48128	Building or Structure		The spill discharged from the cleanout inside the garage at 2855 Stevens Creek Blvd San Jose.  The spill traveled within the parking area of the garage.	Y	37.32393	-121.94398							12/22/2024 16:15	The spill volume was calculated using the measurements provided by the crew and the flow rate out of the cap of the cleanout.	The reporting party stated issues with sewage began 12/21/2024 at 22:00. The start time was based on this information.	Debris from Construction; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		29	The spill occured underground in a parking structure and the structure was closed off to the public.	N	Property Owner Notified; Restored Flow		The crew cleared the plug and restored the flow. No storm drain inlet was found on the floor of the parking garage.  Since the parking garage is a private property, the cleanup was conducted by the private contractor hired by the property owner.	Added Sewer to Preventive Maintenance Program; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Revideo the plug segment in 6 months.	none	12/22/2024 16:15	The cause of the spill was determined to be the construction debris from nearby pavement projects and the secondary cause was grease. 	N												N													
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	898135	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	23-DEC-24	02-JAN-25	02-JAN-25	Category 1 Spill	2960 Peralta Oaks, Oakland Ca	12/19/2024 15:31	12/19/2024 15:40	12/19/2024 17:55				Manhole on easement on a hillside overflowing on unpaved surface.	37.743	-122.14109	Manhole			800	Manhole on easement on a hillside overflowing on unpaved surface, with 405 gallons soaking on the soil and 395 gallons reaching a creek, this creek had a dry bed downstream. The creek flows to San Leandro creek.	Y	395 gallons reaching a creek, this creek had a dry bed downstream. The creek flows to San Leandro creek.	0	395	395 gallons reaching a creek, this creek had a dry bed downstream. The creek flows to San Leandro creek.	395	0	Drainage Conveyance System that discharges to surface water; Unpaved Surface		Manhole on easement on a hillside overflowing on unpaved surface.	Y	37.743	-122.14109							12/19/2024 17:55	160 Minutes x 5 GPM = 800 Gallons total Spill.  Unpaved Surface-From Manhole # 85-230-39 to downstream creek. 178' L x 3W' x .5'D x 7.48 Gallons x 18.75 = 374 Gallons. Behind the building (Kitchen) Concrete sidewalk. 35' Lx3W' x .04' D x 7.48 Gallons = 31 Gallons. 374+31=405 Gallons lost on unpaved surface soaked into soil Total lost in creek 800-405=395 Gallons.	Start time was based on eyewitness account. End time was based on responding crew clearing blocking.	Root Intrusion		Gravity Mainline		Vitrified Clay		125	Manhole on easement on a hillside overflowing on unpaved surface. Eight hundred gallons spilled from ten-inch VCP onto hillside into drainage channel. Three hundred and ninety-five gallons spilled into the water way.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow	Staff cleaned and washed down affected areas.	Staff cleaned and washed down affected areas.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause	Line was adjusted from six months to three months high frequency preventive maintenance.	Line was adjusted from six months to three months high frequency preventive maintenance. W.O. 757115	Line was adjusted from six months to three months high frequency to preventive maintenance. W.O. 757115.	01/02/2025 09:50	CCTV inspection found root intrusion to be the cause of the blockage in the mainline. W.O. 1580977	N			San Leandro creek	Stream/Creek		Creek	None.	Other (specify below)	None.	N/A	0	N	N												
1	1SSO10031	Active	Fortuna City CS	Fortuna City	898155	1.2	Certified	Jason Johnson	Utilities Superintendent	24-DEC-24	03-JAN-25	03-JAN-25	Category 1 Spill	Rohnerville Lift station	12/24/2024 07:45	12/23/2024 22:21	12/23/2024 22:21	12/24/2024 08:18	24-7163		Storm water runoff entered the sewer system causing the flow to exceed the capacity of the sewer lift station causing an SSO to occur. Storm water entered a manhole with a concrete lid, the lid was askew from being closed allowing all runoff to flow directly into the sewer system. 	40.585468	-124.132227	Pump Station			3800	The storm water that overwhelmed the capacity of the sewer lift station caused the overflow of sewage and storm water to overflow from the access hatch to the lift station, it flowed across a downward slope of an unpaved surface, and into the nearby creek. SCADA trends indicated less overflow than originally estimated.	N				Single discharge point directly below the lift station.	3800	0	Surface Water; Unpaved Surface		The storm water that overwhelmed the capacity of the sewer lift station caused the overflow of sewage and storm water to overflow from the access hatch to the lift station, it flowed across a downward slope of an unpaved surface, and into the nearby creek	Y	40.585468	-124.132227							12/24/2024 12:00	SCADA levels indicated the times that the overflows occurred, in addition a spill estimation guide was used to approximate gallons per minute.	Visual spill estimation guide	Flow Exceeded Capacity (Separate Collection System Only); Inappropriate Discharge to Collection System		Other (specify below)	Pump station vault.	Other (specify below)	Concrete vault	0	No impact to sewer system, impacted area was the unpaved surface down-slope from the lift station, as well as the adjacent creek. 	Y	Mitigated Effects of Spill (specify below)		Two Vac-con trucks removed a total of 9 loads from the lift station, preventing 9,089 gallons from spilling. This was returned to the sewer system at the treatment plant.	Repaired Facilities or Replaced Defect		Diverted storm runoff away from manhole, added a three foot collar to manhole.	12/23/2024 2221: Crews arrived after being dispatched for a high level alarm at the Rohnerville Lift Station. 12/23/2024 23:54: Due to Vac-con efforts the overflow stopped, a combination of two vac-con trucks working together were able to prevent any further overflow until the heavy rain subsided and the pump station was able to handle the flows without assistance.  12/24/2024 0830: The cause of the storm water inflow was discovered and corrective measures were started. 12/24/2024 1200: All corrective measures were completed at this time. 	12/24/2024 12:07	Storm water was freely flowing into an  open  manhole exceeding the capacity of the lift station and resulting in an SSO. The issue was corrected the next morning upon discovering the cause. 	N			Rohner Creek	Stream/Creek		Tributary of Strongs Creek	NONE	Other (specify below)	Spill occurred in an area not accessible to the public.  	N/A	0	N	N												
2	2SSO10183	Active	San Mateo CIty CS	San Mateo City	898156	1.3	Certified	Tony Baltodano 	PW Field Maintenance Manager 	24-DEC-24	24-DEC-24	24-DEC-24	Category 1 Spill	Saratoga between Delaware and UFES	12/14/2024 07:24	12/14/2024 08:11	12/14/2024 07:24	12/14/2024 09:30	24-6968		AMENDMENT report Treatment plant SCADA confirms isolation valve closure at 07:24am and reopened at 08:29 with manhole ceasing to overflow immediately(confirmed visually)	37.54855	-122.30058	Manhole			19500	overflowed directly to storm catch basin leading directly to creek	Y	storm pipe	0	0	pipe direct connects to borel creek (19th ave channel)	19500	0	Street/Curb and Gutter (2 3)		Manhole between Delaware and UFES (Underground Flow Equalization Storage) overflowed due to isolation valve sensor/program glitch and valve closed stopping flow in to UFES. SCADA confirmed isolation valve closed at 7:24am and was reopened by operations at 8:30am ceasing the overflow immediately. 	Y	37.54855	-122.30058							12/14/2024 08:29	Duration and Flow Method 	Scada information confirmed of isolation valve closing at 7:24aam and reopening at 8:29am/ confirmed by staff on site. 	Other (specify below)	Isolation valve closed due to wrong programming in SCADA 	Manhole		Polyvinyl Chloride (PVC)		1	The only impact was that it overflowed to Borel Creeek	Y	Other (specify below)	Make roadway safe, contact treatment plant supervisor and open isolation valve to restore flow. 	Utilized cones and barricades to make roadway safe during rain event. 	Other (specify below)	SCADA isolation valve setting was changed to avoid unexpected isolation valve closure. 	Met with treatment plant supervisor and engineering staff to confirm appropriate SCADA setting for isolation valve operation. 	N/A	12/14/2024 08:29	Met with treatment plant supervisor and engineering staff to confirm appropriate SCADA setting for UFES. 	N			Borel Creek 	Stream/Creek		Creek leading to the lagoon and then leading to the bay.	No observed impact to aquatic life. 	Other (specify below)	None 	City of San Mateo Regulatory Compliance Department. 	0	N	N												
1	1SSO10058	Active	Rio Dell City CS	Rio Dell City	898157	1.2	Certified	Sunshine Kelly	Wastewater Superintendent	26-DEC-24	26-DEC-24	26-DEC-24	Category 1 Spill	End of Painter Street Manhole	12/24/2024 06:00	12/24/2024 07:30	12/23/2024 23:20	12/24/2024 08:10	24-7161	17-JAN-25	The spill was located at the Painter Street manhole at 556 Painter St. Photos attached show spill location. 	40.503117	-124.093756	Manhole			78336	The spill was located at the Painter Street manhole and flowed down the gravel ditch away from the residential area toward the Eel River, river bar. Photos show the sandbags, and ditch in place to direct the flow away from the residential area. 	N				Pictures show the spill stream running toward the Eel River, and a picture of where the spill stream entered the rising Eel River.	38336	40000	Surface Water		The Spill flowed to the Eel River at Latitude/ Longitude: 40.503055, -124.091890.	Y	40.503055	-124.09189							12/24/2024 15:00	The volume estimation was based on flow monitoring at the site as well as supervisory control from SCADA based on the trend of the Painter Street lift station wet well level and pump control and the influent flow data into the plant. Volume estimation of spill recovery was based on the volume of the Vactor. the Vactor truck carries 2000 gallons and twenty full recoveries were completed during the duration of the spill. 	The methodology of the spill start time was based on supervisory control based on SCADA of the data collected on the Painter Street Pump station trend, and the rain gauge at the Wastewater treatment plant. We were prepared for the event and had sandbags, a ditch to convey the spill away from residential properties, signs posted and the Vactor truck was on standby to respond.	Flow Exceeded Capacity (Separate Collection System Only); Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Other (specify below)	The failure is that the sanitary sewer main at this location was constructed with a 90 degree turn at this manhole and the earthquake in December of 2022 destroyed sewer mains, and the earthquake this year on December 5th added to the damage of sewer mains, and private laterals, allowing more I&I to enter this portion of the sanitary sewer system. An upsizing project for this section of the sanitary sewer system is in the works since 2019 and will hopefully see some forward momentum with state funding this spring and summer, before the next wet season. CCTVing is an ongoing process under the current SSES, and a few key areas had camera work done to them in November of this year.	55	There was no impact to residence, or private property, or human life as spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage posted, Vactor Truck on standby, and the property owners were made aware of the issue at this site location.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Returned Portion of Spill to Sanitary Sewer System		Spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage installed, property owners were notified and the Vactor truck recovered twenty loads, 2000 gallons each, to the Wastewater Treatment plant for treatment. Once the SSO was over, and recovered, chlorine disinfectant was sprayed in the path of the SSO and surrounding area.	Plan Rehabilitation or Replacement of Sewer		This site has a planned upsizing project in the planning phases for the past 6 years. Currently waiting on State funding to push the design process forward. Also looking to camera sewer mains and do a smoke test of the laterals in the area that lead to the Painter Street Pump Station.	Meeting with the State Water Control Board and Engineering company GHD on January 24th, 2024, provided some comfort that the State would approve the funding of this project, and the City of Rio Dell can start the design process. CCTV-ing of some of the sewer mains that lead to the pump stations up stream of this manhole were just completed before this rain event. The data is being reviewed currently.  	12/24/2024 15:45	This SSO occurred due to the high levels of I&I. Several days of rain and saturation of the ground caused the pump station to become overwhelmed when large amount of rain occurred at once and caused the SSO at this location, the Painter Street manhole.	N			Eel River	River		The Eel River is a large river that runs north on the east side of the City of Rio Dell. There are no Surface Water users downstream of the SSO discharge location. 	No known impacts to aquatic life.	Restricted Public Access		City of Rio Dell Wastewater Superintendent 	1	N	Y	A sample was taken upstream in the river of the spill location; RSW-001U: Latitude/Longitude (40.496013, -124.093796) A sample was taken where the spill stream enters the Eel River; RSW-001: Latitude/Longitude (40.503055, -124.091890)  A sample was taken downstream in the river of the spill location; RSW-001D: Latitude/Longitude (40.508887, -124.111481)  	Per the City of Rio Dell SSO Water Quality Monitoring Plan Samples were analyzed for E.coli and Ammonia.										
9	9SSO10653	Active	City of Laguna Beach CS	Laguna Beach City	898159	1.4	Certified	Richard A Gonzales	Deputy Director of Public Works	25-DEC-24	26-DEC-24	26-DEC-24	Category 1 Spill	Animal Shelter	12/23/2024 10:40	12/23/2024 10:53	12/23/2024 09:30	12/23/2024 11:44	24-7142		Sewage was coming out of a manhole on the property. 	33.5716802	117.7626946	Manhole			220	Sewage coming out of a manhole on property. The spill flowed through a gutter, onto a bridge, and into Laguna Canyon Creek.	Y	The drainage conveyance system is a gutter running onto a small one-car bridge. Sewage spilled from the gutter into the Laguna Beach Creek. 	20	0	Sewage coming out of a manhole on property. 	220	20	Drainage Conveyance System; Street/Curb and Gutter (2 3); Surface Water	The spill ran from the manhole to the gutter. The gutter leads to a small one-car bridge. From the bridge, the sewage spilled into Laguna Canyon Creek.	Sewage coming out of a manhole on property. Spill followed a gutter that led to a small one-car bridge. The sewage spilled onto the bridge and into Laguna Canyon Creek. 	Y	33.5716802	117.7626946							12/23/2024 10:58	Staff utilized the Duration and Flow Rate Comparison Method.  Calculated the time the spill flowed (88 minutes) by the flow rate (2.5 gallons per minute). This is equal to 220 total gallons. The Duration and Flow Rate Comparison Method was used to determine gpm. 	Calculated the time the spill flowed (88 minutes) by the flow rate of (2.5 gallons per minute). This is equal to 220 total gallons. The Duration and Flow Rate Comparison Method was used to determine gpm. 	Debris from Lateral; Debris-wipes/Non-disposables		Gravity Mainline; Manhole		Ductile Iron		40	The spill's impact was that 200 gallons reached Laguna Canyon Creek. The spill lasted 88 minutes, with a flow rate of 2.5 gpm. 	N	Mitigated Effects of Spill (specify below)	City staff unblocked the blockage and vacuumed the remaining sewage. Vacuuming up 20 gallons of sewage in the process. 	The Jetter truck broke the blockage. The Vactor truck came out to clean up the remainder of the spill. Staff then forked out the manhole and hosed down the asphalt surface on the property and bridge while vacuuming the residual water. 	Post Spill CCTV		CCTV inspection of the line, post-spill. Rectify any concerns found in the inspection. 	Introducing an annual system inspection program (August 2025).	12/23/2024 10:58	A buildup of baby wipes and toilet paper caused the spill. 	N			Laguna Canyon Creek	Stream/Creek		The spill flowed into the Laguna Canyon Creek.	None	Temporary Restricted Use		OCHCA	0	N	N												
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	898162	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	26-DEC-24	03-JAN-25	03-JAN-25	Category 1 Spill	Moraga Ave. & La Salle Ave., Oakland Ca	12/24/2024 13:32	12/24/2024 16:56	12/24/2024 12:00	12/24/2024 14:30	24-7175		Manhole overflowing sewage in the street, the sewage was flowing down to the nearest storm inlet.	37.82623	-122.21055	Manhole			5685	Manhole overflowing sewage in the street, the sewage was flowing down to the nearest storm inlet.	Y	12  storm drainage pipe that flows down to Sausal creek.	0	5685	12  storm drainage pipe that flows down to Sausal creek.	5685	0	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Manhole overflowing sewage in the street, the sewage was flowing down to the nearest storm inlet.	Y	37.82623	-122.21055							12/24/2024 17:29	.75 Vent holes x .5  height = 1.44 GPM 1.44 GPM x 12 Vent holes = 17.28 GPM 329 Minutes x 17.28 GPM = 5,685 Gallons	Start time was based on eyewitness account. End time was based on responding crew clearing blockage.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		125	Five thousand six hundred and eighty-five gallons spilled into a storm inlet that flows to, Sausal Creek. Creek was posted.	Y	Cleaned Up (specify below); Property Owner Notified; Restored Flow	Sewer staff washed down affected areas. Staff also vacuumed only the grey water that puddled. The spill was unrecoverable.	Sewer staff washed down affected areas. Staff also vacuumed only the grey water that puddled. The spill was unrecoverable.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Line was adjusted to three-month hydro high frequency. W.O. 1545773	Line was adjusted to three-month hydro high frequency. W.O. 1545773	12/24/2024 17:29	CCTV inspection found grease to be cause of the overflow.	N			Sausal Creek	Stream/Creek		Creek.	None.	Other (specify below)	None.	N/A	0	N	N												
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	898163	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	26-DEC-24	06-JAN-25	06-JAN-25	Category 2 Spill	6771 Armour Drive, Oakland Ca	12/24/2024 13:22	12/24/2024 14:01	12/24/2024 12:22	12/24/2024 16:17	24-7174		Manhole overflowing in the street, the sewage mixed with rainwater during the storm was contained due to a plugged storm inlet in the cul-de-sac.	37.83604	-122.20363	Manhole			1444	Manhole overflowing in the street, the sewage mixed with rainwater during the storm was contained due to a plugged storm inlet in the cul-de-sac.	N	Storm inlet was plugged with dirt and debris.	1444	0			1444	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Manhole overflowing in the street, the sewage mixed with rainwater during the storm was contained due to a plugged storm inlet in the cul-de-sac.	Y	37.83604	-122.20363							12/24/2024 14:20	118 Min x 1224=1444 Gallons Total Spill .75 Inch rent hole x .25  Height=1.02 GPM 1.02 GPM x 12 Vent Holes = 12.24 GPM	Start time was based on eyewitness account. End time was based on responding crew clearing the blockage.	Root Intrusion		Gravity Mainline		Vitrified Clay		125	Manhole overflowing in the street, the sewage mixed with rainwater during the storm was contained due to a plugged storm inlet in the cul-de-sac.	Y	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow		Sewer staff vacuumed and washed down affected areas. Spilled sewage was vacuumed and returned to the collection system.	Added Sewer to Preventive Maintenance Program	Sewer main was added to the six-month hydro high preventive maintenance program. W.O. # 1582989	Sewer main was added to the six-month hydro high preventive maintenance program. W.O. # 1582989	Sewer main was added to the six-month hydro high preventive maintenance program. W.O. # 1582989	12/24/2024 14:20	CCTV report found the main line Polyethene in good condition, responding crew root intrusion at the manhole. Root intrusion was the call of the overflow.	N												N													
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	898176	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	27-DEC-24	02-JAN-25	02-JAN-25	Category 1 Spill	4437 Saint Andrews Rd, Oakland, CA 	12/24/2024 14:25	12/24/2024 17:56	12/24/2024 14:15	12/24/2024 15:46	24-7172		Manhole overflowing in the street, the sewage was flowing down in the gutter area to the nearest storm inlet. 	37.76522	-122.14332	Manhole			597	Manhole overflowing in the street, the sewage was flowing down in the gutter area to the nearest storm inlet. 	Y	Storm line connects to Lion Creek, Arroyo Viejo Creek and Damon Slough	0	597	Lion Creek, Arroyo Viejo Creek and Damon Slough	597	0	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Manhole overflowing in the street, the sewage was flowing down in the gutter area to the nearest drainage V-Ditch.	Y	37.76522	-122.14332							12/24/2024 18:13	238 min x 2.51 GPM = 597 Gallons 1  Pick hole x 2  Height = 2.51 GPM	Start time was based on eyewitness account. End time was based on responding crew clearing blockage.	Root Intrusion		Gravity Mainline		Vitrified Clay		125	Manhole overflowing in the street, the sewage was flowing down in the gutter area to the nearest drainage V-Ditch. Five hundred and ninety-seven gallons spilled as a result of a root blockage.	N	Cleaned Up (specify below); Restored Flow	Sewer staff washed down affected areas of the V-Ditch, and some certain parts of the street curb and gutter area.	Sewer staff washed down affected areas of the V-Ditch, and some certain parts of the street curb and gutter area.	Added Sewer to Preventive Maintenance Program	Sewer was added to six-month preventative maintenance hydro cleaning program. W.O. 1583109.	Sewer was added to six-month preventative maintenance hydro cleaning program. W.O. 1583109.	Sewer was added to six-month preventative maintenance hydro cleaning program. W.O. 1583109.	12/24/2024 18:13	CCTV found root intrusion to be the cause of the sewer overflow. W.O. #1581983.	N			Arroyo Viejo Creek	Stream/Creek		Creek.	None.	Other (specify below)	None.	N/A	0	N	N												
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	898249	1.2	Certified	John J. Hough	San Dist. Superintendent	28-DEC-24	09-JAN-25	09-JAN-25	Category 1 Spill	353637	12/26/2024 15:31	12/26/2024 16:06	12/16/2024 16:50	12/26/2024 17:39	24-7190		See attached Spill Map with photos.	38.50357	-121.4495	Lateral Clean Out (Public)	Four SacSewer cleanouts		37552	See attached Spill Map with Photos.	Y	See attached Spill Map with photos.	121	0	See attached Spill Map with photos,	37334	142	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See attached Spill Map with Photos.	Y	38.50357	-121.44929	38.50347	-121.44909	38.50351	-121.44883	38.50309	-121.44874	12/26/2024 17:30	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		61	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	*Notified Sacramento County Water Resources Drainage Operations and Maintenance and Sacramento County Environmental Management Department.	See Attached Description of Spill Event	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	SacSewer inspected the mainline with CCTV on December 27, 2024. Based on findings, SacSewer adjusted the preventative maintenance schedule from a 24-month frequency to a 12-month frequency.  SacSewer will mail FOG literature to residents upstream of the mainline blockage.	See Attached Description of Events	SacSewer modified the preventative maintenance schedule on 12/30/2024.	12/26/2024 19:30	See Attached Description of Spill Event	N			Morrison Creek	Stream/Creek		Morrison Creek had moderate flow.	No observed impacts to aquatic life.	Other (specify below)	No public access impacts.	N/A	0	N	N												
7	7SSO10538	Active	Salton City Oxid Basin CS	Salton Community Services Dist	898250	1.0	Work In Progress						Monthly Category 3 Spill	2485 Evans Aven	12/26/2024 08:00	12/26/2024 08:00	12/26/2024 06:30				A Blockage in the gravity sewer line was clogged and cause sewage to rise and spill above ground.	33.30857	-115.94494	Manhole			947	Sewage extent to 785 feet on soil and asphalt concrete.	N						100	Paved Surface; Unpaved Surface		un pave curved sidewalk 	Y	33.30906	-115.94295							12/26/2024 08:30			Debris-Rags; Debris-wipes/Non-disposables		Gravity Mainline		Vitrified Clay				N	Cleaned Up (specify below); Contained All or Portion of Spill		vactor truck to collect sewage and sanitize affected area. removal of contaminated soiled.	Adjusted Schedule/Method of Preventive Maintenance		Add to weekly Area check trouble line. To check for holding manhole. 																													
5S	5SSO11007	Active	Murphys CS	Murphys SD	898251	1.3	Ready to Certify						Monthly Category 3 Spill	300 Tom Bell rd	12/28/2024 14:18	12/28/2024 14:30	12/28/2024 14:18				IMG_0136	38.13844	-120.45506	Manhole			900	IMG_0136	N						0	Unpaved Surface		low lying area around manhole										12/28/2024 14:33	volumetric math	time i recieved call response time	Debris-Rags		Gravity Mainline		Vitrified Clay		60	Spill contained to area around man hole	N	Restored Flow		Hydro flusher, raked area disinfection	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Increase maintenance in this area.Add to CIP.		12/28/2024 16:05	RAGS AND GREASE CAME DOWN AFTER FLUSHING 		CCTV	12/28/2024 14:33														none	cctv INSPECTION	weekly	on our CIP	INSPECT	ON the schedule	Maintenance reports	HYDR FLUSH	CCTV	
5S	5SSO11007	Active	Murphys CS	Murphys SD	898252	1.1	Certified	CLAY ONSTAD	OPERATOR		28-DEC-24	28-DEC-24	Monthly Category 3 Spill	300 TOM BELL RD	12/28/2024 14:18	12/28/2024 14:30	12/28/2024 14:18				IMG_0136	38.13844	-120.45506	Manhole			900	IMG_0136 CONTAINED TO LOW LYING AREA AROUND MH	N						0	Unpaved Surface		LOW LYING AREA AROUND MAN HOLE	N									12/28/2024 14:33	VOLUMETRIC MATH TIME	RESPONSE TIME AND STOP TIME	Debris-Rags		Gravity Mainline		Vitrified Clay		40	CONTAINED TO LOW LYING AREA	N	Contained All or Portion of Spill; Restored Flow		HYDRO FLUSH DISINFECT	Added Sewer to Preventive Maintenance Program; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		STEP UP MAINTENANCE		12/28/2024 17:06	RAGS AND GREASE WHEN RELEASED		CCTV	12/31/2024 10:15														NONE	CCTV HYDRO FLUSH	WEEKLY	CIP	INSPECT	YES		INCREASE MAINTENANCE	CCTV	
1	1SSO10058	Active	Rio Dell City CS	Rio Dell City	898253	1.2	Certified	Sunshine Kelly	Wastewater Superintendent	30-DEC-24	31-DEC-24	31-DEC-24	Category 1 Spill	End of Painter Street Manhole	12/29/2024 06:45	12/29/2024 07:45	12/29/2024 02:30	12/29/2024 07:53	24-7219	21-JAN-25	The spill was located at the Painter Street manhole at 556 Painter St. Photos attached show spill location. 	40.503117	-124.093756	Manhole			84915	The spill was located at the Painter Street manhole and flowed down the gravel ditch away from the residential area toward the Eel River, river bar. Photos show the sandbags, and ditch in place to direct the flow away from the residential area. 	N				Pictures show the spill stream running toward the Eel River, and a picture of where the spill stream entered the rising Eel River.	56915	28000	Surface Water		The Spill flowed to the Eel River at Latitude/ Longitude: 40.503055, -124.091890.	Y	40.503055	-124.09189							12/29/2024 21:00	The volume estimation was based on flow monitoring at the site as well as supervisory control from SCADA based on the trend of the Painter Street lift station wet well level and pump control and the influent flow data into the plant.	The methodology of the spill start time was based on supervisory control based on SCADA of the data collected on the Painter Street Pump station trend, and the rain gauge at the Wastewater treatment plant. We were prepared for the event and had sandbags, a ditch to convey the spill away from residential properties, signs posted and the Vac-Tor truck was on standby to respond once notified of spill.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Other (specify below)	The failure is that the sanitary sewer main at this location was constructed with a 90 degree turn at this manhole and the earthquake in December of 2022 destroyed sewer mains, and the earthquake this year on December 5th, 2024 added to the damage of sewer mains, and private laterals, allowing more I&I to enter this portion of the sanitary sewer system. An upsizing project for this section of the sanitary sewer system is in the works since 2019 and will hopefully see some forward momentum with state funding this spring and summer, before the next wet season. CCTVing is an ongoing process under the current SSES, and a few key areas had camera work done to them in November of this year.	55	There was no impact to residence or private property, or human life as spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage and the property owners were made aware of the issue at this site location.	Y	Cleaned Up (specify below); Contained All or Portion of Spill		Spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage installed, property owners were notified and the Vac-Tor truck recovered fourteen loads, 2000 gallons each, to the Wastewater Treatment plant for treatment. Once the SSO was over, and recovered, chlorine disinfectant was sprayed in the path of the SSO and surrounding area. During and after spill the area was monitored to keep clean if there were any sewage debris. After the spill event the ditch was cleaned and sprayed with chlorine solution for disinfection.  	Plan Rehabilitation or Replacement of Sewer		This site has a planned upsizing project in the planning phases for the past 6 years. Currently waiting on State funding to push the design process forward. Also looking to camera sewer mains and do a smoke test of the laterals in the area that lead to the Painter Street Pump Station.	Meeting with the State Water Control Board and Engineering company GHD on January 24th, 2024, provided some comfort that the State would approve the funding of this project, and the City of Rio Dell can start the design process. CCTV-ing of some of the sewer mains that lead to the pump stations up stream of this manhole were just completed before this rain event. The data is being reviewed currently. 	12/30/2024 09:45	This SSO occurred due to the high levels of I&I. Several days of rain and saturation of the ground caused the pump station to become overwhelmed when large amount of rain occurred at once and caused the SSO at this location, the Painter Street manhole. 	N			Eel River	River		The Eel River is a large river that runs north on the east side of the City of Rio Dell. There are no Surface Water users downstream of the SSO discharge location.  	No known impacts to aquatic life.	Temporary Restricted Use		City of Rio Dell Wastewater Superintendent 	2	N	Y	A sample was taken upstream in the river of the spill location; RSW-001U: Latitude/Longitude (40.496013, -124.093796) A sample was taken where the spill stream enters the Eel River; RSW-001: Latitude/Longitude (40.503055, -124.091890)  A sample was taken downstream in the river of the spill location; RSW-001D: Latitude/Longitude (40.508887, -124.111481) 	Per the City of Rio Dell SSO Water Quality Monitoring Plan Samples were analyzed for E.coli and Ammonia										
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	898254	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	29-DEC-24	13-JAN-25	13-JAN-25	Category 1 Spill	5115 Saddlebrook Dr, Oakland, CA	12/29/2024 11:48	12/29/2024 12:47	12/29/2024 09:00	12/29/2024 12:51	24-7227		Manhole in the street overflowing into a storm drain. Storm drain leads Lion Creek, and Arroyo Viejo Creek.	37.79159	-122.14935	Manhole			15490	Manhole in the street overflowing, the sewage was flowing on the street curb and gutter to the nearest storm inlet.	Y	15-inch storm line	0	15490	Stream named Lion and Arroyo Viejo creeks.	15490	0	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water	Manhole in the street overflowing into a storm drain. Storm drain leads Lion Creek, and Arroyo Viejo Creek.	Manhole in the street overflowing into a storm drain. Storm drain leads Lion Creek, and Arroyo Viejo Creek. Fifteen thousand four and ninety gallons spilled this location.	Y	37.79159	-122.14935							12/29/2024 13:28	Pick hole and Ventilation Chart: .75  Diameter Vent hole x 2  height = 2.89 GPM each .75  Vent holes x 20 Vent holes x 2  height = 57.8 GPM 268 Min x 57.8 GPM = 15,490 Gallons	Start time was based on eyewitness account. End time was based on responding crew clearing the blockage.	Root Intrusion		Gravity Mainline		Vitrified Clay		125	Manhole in the street overflowing into a storm drain. Storm drain leads Lion Creek, and Arroyo Viejo Creek. Fifteen thousand four and ninety gallons spilled at this location.	Y	Cleaned Up (specify below); Property Owner Notified; Restored Flow	Staff washed and vacuumed the down affected areas.	Staff washed and vacuumed the down affected areas. Sewage was lost down a storm inlet.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Sewer line was adjusted to 3-month hydro high frequency preventative maintenance program. W.O. # 1527053.	Sewer line was adjusted to 3-month hydro high frequency preventative maintenance program. W.O. # 1527053.	12/29/2024 13:28	CCTV report found grease to be the cause of the spill.	N			Lion creek, Arroyo Viejo creek	Stream/Creek		Creek.	None.	Other (specify below)	N/A	N/A	0	N	N												
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	898255	1.2	Certified	John J. Hough	San Dist. Superintendent	30-DEC-24	08-JAN-25	08-JAN-25	Category 1 Spill	353662	12/27/2024 14:17	12/27/2024 14:47	12/26/2024 11:30				See attached Spill Map with photos.	38.60375	-121.39729	Lateral Clean Out (Public)			191	See attached Spill Map with photos.	Y	See attached Spill Map with photos.	3	0	See attached Spill Map with photos.	172	16	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See attached Spill Map with Photos.	Y	38.6038	-121.3973							12/27/2024 14:47	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Root Intrusion		Lower Lateral		Cast Iron; Vitrified Clay		63	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified Sacramento County Water Resources Drainage and the Environmental Management Department.	See Attached Description of Spill Event	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		See Attached Description of Spill Event.	SacSewer inspected the lower lateral with CCTV on December 27, 2024. Based on findings, SacSewer will replace the lower lateral.	12/27/2024 17:45	See Attached Description of Spill Event	N			Strong Ranch Slough	Slough		Strong Ranch Slough had moderate flow.	No observed impacts to aquatic life	Other (specify below)	No public access impacts.	N/A	0	N	N												
1	1SSO10023	Active	Del Norte County CSA CS	Del Norte County	898256	1.3	Certified	Jonathan Olson	County Engineer	30-DEC-24	30-DEC-24	30-DEC-24	Category 1 Spill	Hodge Lift Station	12/24/2024 21:08	12/24/2024 21:00	12/24/2024 21:08				Lift Station at intersection of Hodge Ave and Humboldt Road	41.75241	-124.15647	Manhole			945	From manhole at Hodge and Humboldt to drainage ditch 	Y	Roadside ditch	500	445	just the ditch.	445	500	Drainage Conveyance System that discharges to surface water		drainage ditch roadside	Y	41.75238	-124.15645							12/24/2024 21:35	Visual observation per the SS management plan	Staff were on site and observed the overflow. They were onsite before it started due to notifications from SCADA	Pump Station Failure - Mechanical		Pump Station - Mechanical		Other (specify below)	Not applicable as it was a mechanical seal failure in the pump.	46	sewage into roadside ditch.	N	Contained All or Portion of Spill		used a vac truck to suck up SSO out of roadside ditch.	Other (specify below)	This was a simple mechanical seal failure. There was no signs of a leak prior to the failure. Lost a seal in pump 2 and it sprayed liquid on the belts of pump till both pumps had wet drive belts that stop driving. 	Check other pumps with similar mechanical seals for leaks.	Part of monthly inspections.	12/24/2024 22:00	This was a simple mechanical seal failure. There was no signs of a leak prior to the failure. Lost a seal in pump 2 and it sprayed liquid on the belts of pump till both pumps had wet drive belts that stop driving. 	N	NA		unnamed slough	Slough		North of the intersection of HWY 101 and Sandmine Road in Crescent City CA	Non observed	Other (specify below)		NA	0	N	N											NA	
3	3SSO10265	Active	El Estero CS	Santa Barbara City PWD	898259	1.4	Certified	Esteban Zambrano	WWC Superintendent 	07-JAN-25	14-JAN-25	14-JAN-25	Category 1 Spill	433 S. Canada St	12/28/2024 10:20	12/28/2024 10:25	12/28/2024 09:08	12/28/2024 16:15	24-7215		Sewage spill appearance point originated at the corner of Pitos St and S Canada St, MH Appearance point GPS coordinates Latitude 34.42117, Longitude -119.66807  Manhole ID: MH-K09-032	34.42117	-119.66807	Manhole			845	SSO discharge from a manhole at the corner of Canada St and Pitos St - GPS coordinates 34.42117, -119.66807. The spill resulted in wastewater flowing onto  paved surface before entering the nearby storm drain at the cul-de-sac.   The storm drain at the spill entry location consists of three entry points. The two outer drains channels into a middle drain, which directs the flow to a storm drain catch basin at the sound wall. The Storm drain continues to the other side of the sound wall, located on the shoulder of the 101 Freeway-Storm Drain MH GPS coordinates 34.42096, -119.66792, and daylights at Sycamore Creek.	Y	The storm drain at the spill entry location consists of three entry points. The two outer drains channel into a middle drain, which directs the flow to a storm drain catch basin at the sound wall. The Storm drain continues to the other side of the sound wall, located on the shoulder of the 101 Freeway-Storm Drain MH GPS coordinates 34.42096, -119.66792, and daylights at Sycamore Creek.	521	136	Pictures 1-4: Spill Location in the Cul-de-Sac This image captures location of the spill within the cul-de-sac. It shows the surrounding environment, highlighting the entry point to the storm drains.   Pictures 5-7: Shows the crew setting up their equipment, including hoses and vacuum truck. Flushing down process with clean water as it is being recovered at the storm drain catch basin with the vacuum unit.  Pictures 8-11: Shows the wetted area in the Sycamore creek and the crew cleanup efforts to remove all stagnant water from the creek.   Picture 12: Shows the crew flushing and vacuuming the storm drain and using containment to prevent washdown water from exiting the storm drain and entering the creek.  Picture 13: This image captures the last 10 to 15 feet of the storm drain just before it daylights, offering a view of the heavy debris accumulation inside. The drain may be partially filled with leaves, sediment, and other materials. 	136	709	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Other (specify below); Paved Surface	Sycamore Creek. 	1.d/e - SSO Discharge from manhole located at the corner of Canada St and Pitos St   1.f/g - The spill then resulted in the discharge of wastewater into a nearby storm drain in the cul-de-sac area.   1.h/i - The spill then reached the main storm drain channel headed West towards Sycamore Creek  1.j/k - The spill daylighted into sycamore creek	Y	34.42117	-119.66807	34.42108	-119.66802	34.42096	-119.66792	34.42051	-119.66968	12/28/2024 11:57	To estimate the volume of the spill, we used spill patterns, witness accounts from local resident, and measurements based on the dimensions of the affected area.  Spill Pattern Analysis: We began by assessing the spill's pattern, which helped us understand its spread and impact. The analysis included evaluating how the spill moved across the landscape.  Witness Account: We gathered testimony from a resident who observed the spill. The account provided valuable information on the start of the spill.  Time and Duration: video of the spill to estimate time and duration volume. Measurements: We calculated an area of spill volume using the formula for volume (length x width x depth).  By combining the information above, CWEA Training, training from an in-house SSO simulator, and the reference of the Sewer Estimation Guide by Orange County, field staff was able to estimate the SSO volume. 	The SSO start time was determined by utilizing a combination of spill pattern, resident account, and video of the spill to estimate time and duration volume. The spill video was compared to the SSO simulator reference pictures established by the city for training. In addition, field staff used the SSO volume calculations from the Sewer Estimation Guide from Orange County. With the end time already established when the crew broke the plug, field staff were able to backtrack using all this information to establish a start time. 	Other (specify below)	Wipers/Toilet paper	Gravity Mainline		Other (specify below)	CIPP Lined	17	The SSO reached surface water due to 136 gallons of wastewater saturating into Sycamore Creek. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned All Spill to Sanitary Sewer System		The team quickly assessed the spill and promptly set up a vacuum unit at the manhole from which the wastewater was discharging. This critical initial step allowed the team to contain a significant portion of the spill. A second crew broke the plug that was obstructing the flow. The team then washed down the storm drain to collect and contain the discharge in the nearby catch basin. Over the next few days, an ongoing investigation was carried out to identify storm drains that were not depicted on city maps to continue with recovery efforts.   On Monday the 30th, the crew returned equipped with corrugated hoses to reach the creek impacted by the spill. The crew focused on flushing out the remainder of the storm drain channel and creek. However, portion spill saturated at the creek bed. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Smartcover level Sensor. Door hangers for not to flush wipes.	Door hangers were distributed to inform residents not to flush wipes. A SmartCover level sensor was installed at the SSO Manhole to monitor the sewer main in real-time. 	N/A	12/30/2024 14:30	The investigation into the recent sewer spill revealed that the primary cause was a significant buildup of non-biodegradable materials, specifically paper products and wipes.	Y	The ongoing investigation was primarily focused on determining the storm drain locations where the spill occurred and tracking its path downstream. The investigation involved deploying CCTV equipment to survey the affected areas and identify the exact points of entry and exit for the spill.	12/30/2024 14:30	Sycamore Creek	Stream/Creek		Creek	No Impact	Restricted Public Access		Santa Barbara Enviromental Public Health	0	Y	Y	Sample collection for the investigation was conducted at two key locations to effectively assess the impact of the sewer spill.   The first sample was taken at the storm drain catch basin, before entering the main storm drain channel that leads into Sycamore Creek.  The second sample was collected at the end point where the storm drain daylighted into the creek.	Water quality testing for Total Coliform, E. coli, and Enterococcus									The ongoing investigation was primarily focused on determining the storm drain locations where the spill occurred and tracking its path downstream. The investigation involved deploying CCTV equipment to survey the affected areas and identify the exact points of entry and exit for the spill.	
1	1SSO10001	Active	Arcata City CS	Arcata City	898260	1.1	Certified	Doug Culbert	Deputy Director of Environmental Services		30-DEC-24	30-DEC-24	Category 1 Spill	South I Street	12/29/2024 09:00	12/29/2024 09:00	12/29/2024 06:00	12/30/2024 10:00	24-7235		The temporary pumps at the influent station at the WWTP (that is under construction), could not keep up with the surge from the I&I caused by heavy rains. This caused the pipe to back up and surface at the lowest point, a manhole on South I Street. The approximate GPS location is 40.861125, -124.093123	40.861125	-124.093123	Manhole			2100	The spill occurred in the public street and 75% of the spill (1575 gal) flowed across the street into the treatment marshes while the remaining 525 gal flowed into the Brackish Marsh which is tidally influenced and the 003 outfall for the WWTP.	N				Discharge into Brackish marsh	525	1575	Other (specify below)	WWTP Treatment Marshes Tidally influenced marsh	1525 gallons flowed into the treatment marsh at 40.86073, -124.09316 575 gallons flowed into the Brackish marsh at 40.86117, -124.09336 which is the 003 outfall of the WWTP.  	Y	40.86117	-124.09336	40.86073	-124.09316					12/29/2024 13:00	The operator had a container of known volume and calculated the fill time of 4.7 gpm. We rounded up to 5 gpm.  0600-1300 is 7 hours (x 60 min/hr) = 420 min. x 5 gpm = 2100 gallons	Staff noticed the discharge at 0900 while on routine rounds and pump run times for the nearby pump station showed that they were running constantly from 0600 which would indicate an approximate time that the discharge started	Flow Exceeded Capacity (Separate Collection System Only); Other (specify below)	Under normal circumstances the influent pumps would be able to keep up with the flows generated by the rainfall/I&I. The WWTP headworks is under construction and the temporary pumps are not as big and did not keep up with the flows at that point in time.	Manhole		Ductile Iron		55	1525 gallons flowed into the treatment marsh which typically treats wastewater after it has been through the primary clarifier and disinfection. 575 gallons flowed into the Brackish marsh which is tidally influenced and the 003 outfall of the WWTP.	Y	Other (specify below); Other Enforcement Agency Notified	No cleanup occurred. The rain washed away the spill from the roadway. Waterboard Shellfish Division was notified at 12:00 on 12/29	No containment was initiated. The flows were too high to mitigate.	Plan Rehabilitation or Replacement of Sewer	Once the headworks is in service, larger pumps will be responsible for pumping to the WWTP	Once the headworks is in service, larger pumps will be responsible for pumping to the WWTP	August, 2025	12/29/2024 13:00	Staff knew that the smaller pumps at the headworks were the cause	N			Brackish Marsh	Other (specify below)	Brackish Marsh; WWTP 003 Outfall 	Tidally influenced marsh	None	Other (specify below)	No impact to public use.	City of Arcata	0	N	N												
4	4SSO10497	Active	Triunfo Sanitation District CS	Triunfo Sanitation District	898275	1.1	Certified	David Rydman	Operations Manager		08-JAN-25	08-JAN-25	Category 1 Spill	Behind 2591 Calbourne Lane	12/29/2024 18:05	12/29/2024 19:30	12/28/2024 09:00	12/30/2024 08:51	24-7233		Sewage spilling out of a manhole on a TWSD easement located behind 2591 Calbourne Lane	34.13292	-118.86535	Manhole		None	2500	See photos.  Subject manhole is located nearly adjacent to Lake Sherwood lake.  Photos clearly indicate the spill flowed directly into the lake.	N		0	0	See photos	2500	0	Surface Water		Sewage spill flowed into the private Lake Sherwood lake.	Y	34.13293	-118.86535							12/29/2024 21:00	The spill resulted from a blockage downstream of the manhole that spilled.  The HOA for Lake Sherwood indicated approximately 20-30 residents were at home during the duration of the spill.  Video surveillance showed the spill began at approximately 9am on 12/28/24.  The blockage was cleared at 9pm on 12/29.  	Assuming 55 gpcd of indoor water use for 30 residents over 18 hours generates a total volume of 2500 gallons.	Damage by Others Not Related to Collection System Construction/Maintenance; Debris from Construction		Other (specify below)	The sewage system had no failure.  Human error caused debris to fall into the system causing a blockage.	Polyvinyl Chloride (PVC)		20	Sewage overflowed from a manhole upstream of the blockage and flowed into the private Lake Sherwood Lake.	N	Mitigated Effects of Spill (specify below); Other (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow	Cleared blockage causing the spill.  	Notified the HOA and landscaping company that had caused the blockage to remove the pea gravel pile and not place construction materials or debris on top of manholes in the future.  Notified OES of the spill.  Notified HOA of the spill.  Posted signs on the perimeter of the lake notifying of the spill.  Collected bacteria samples.	Post Spill CCTV		Will hold HOA and landscaping company responsible for the cost to remove the blockage, post signage, and collect water quality samples.  Will follow-up with the HOA and landscaping company to reiterate the importance of keeping the easements sewer lines and manholes are located in free of construction materials and debris.  	Collected water quality samples - 12/30/24 Received results of water quality samples - 1/6/25 Removed signage around the lake 1/2/25 Notified HOA of sign removal 1/2/25	12/30/2024 11:55	A contract landscape company placed pea gravel over the top of a TWSD sewer manhole.  The pea gravel entered the manhole and filled in the manhole to a depth of approximately 18 inches preventing sewage from traveling through the manhole.  The blockage caused the sewer system to backup and fill with sewage.  Once the system was completely surcharged, sewage spilled from the manhole located at the lowest elevation within the area that was surcharged.  	N			Lake Sherwood lake	Other (specify below)	Private lake	A manmade private lake in the Lake Sherwood private community. 	None	Public Closure; Restricted Public Access; Temporary Restricted Use		Lake Sherwood HOA	3	N	Y	At spill location Upstream of spill location Downstream of spill location Further downstream of spill location In the center of the lake	Total Coliform Fecal Coliform E-coli Enterococcus										
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	898303	1.2	Certified	John J. Hough	San Dist. Superintendent	30-DEC-24	13-JAN-25	13-JAN-25	Category 1 Spill	353691	12/29/2024 12:27	12/29/2024 13:15	12/29/2024 11:30	12/29/2024 14:55	24-7229		See attached Spill Map with photos.	38.63241	-121.29307	Lateral Clean Out (Private)			2100	See attached Spill Map with photos.	Y	See attached Spill Map with photos.	437	0	See attached Spill Map with photos.	1660	439	Drainage Conveyance System that discharges to surface water; Paved Surface; Surface Water		See attached Spill Map with Photos.	Y	38.63248	-121.29323	38.63248	-121.29325	38.63257	-121.29328	38.63202	-121.29381	12/29/2024 15:00	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Debris-General		Gravity Mainline		Vitrified Clay		56	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified Sacramento County Department of Water Resources Drainage, Sacramento County Environmental Management Department, Golden State Water Company, City of Sacramento Fairbairn Water Treatment Plant, Carmichael Water Company, and State of California Central Valley Regional Water Quality Control Board.	See Attached Description of Spill Event.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected the main line with CCTV on December 31, 2024. Based on the findings, SacSewer adjusted the preventative maintenance schedule from a 48-month frequency to a 36-month frequency.	SacSewer updated the preventative maintenance schedule on January 6, 2025.	12/29/2024 22:00	See Attached Description of Spill Event	N			American River	River		The American River is a large waterway with high volume flow.	No observed impacts to aquatic life	Other (specify below)	No Public Access Impacts.	N/A	0	N	N												
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	898311	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	30-DEC-24	08-JAN-25	08-JAN-25	Category 1 Spill	606 Alma Ave, Oakland, CA	12/27/2024 16:16	12/27/2024 17:15	12/30/2024 11:00	12/30/2024 14:20	24-7249		Sewage was coming out of a private lateral clean-out in the rear of property 606 Alma Ave. 	37.80409	-122.239	Lateral Clean Out (Private)			2325	Sewage was coming out of a private lateral clean-out in the rear of property 606 Alma Ave. The sewage traveled through neighboring properties 1111 Mckinley Ave, 1119 Mckinley Ave, and eventually going into a nearby separate storm drain inlet. 	Y	12-inch storm drain	175	2140	Lake Merrit	2140	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		Sewage was coming out of a private lateral clean-out in the rear of property 606 Alma Ave. 	Y	37.80409	-122.239							12/27/2024 18:46	5 Gallons per min x 465 min = 2,325 gallons. Reached Land = 5' L x 3' W x .5' D x 18.75 Soil Density x 7.48 Gallons = 10 Gallons soaked in soil.	Start time was based on eyewitness account.	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline; Lower Lateral		Vitrified Clay		125	2,325 gallons overflowed from a private lateral as a result of the sewer main being obstructed with grease and roots.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		Staff washed down and cleaned up affected areas.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause	Sewer line was added to the six-month Power Rodder, and Hydro Flusher high frequency preventive maintenance. W.O. # 1582975, W.O. # 1546224	Sewer line was added to the six-month Power Rodder, and Hydro Flusher high frequency preventive maintenance. W.O. # 1582975, W.O. # 1546224	Sewer line was added to the six-month Power Rodder, and Hydro Flusher high frequency preventive maintenance. W.O. # 1582975, W.O. # 1546224	12/27/2024 18:45	CCTV report found grease and roots to be the cause of the spill.	N			14th Avenue, San Antonio creek to Lake Merritt.	Lake	Drainage conveyance System.	Lake.	None.	Other (specify below)	None.	N/A	0	N	N												
5S	5SSO11409	Active	City of Turlock CS	Keyes Community Service District (CDS)	898331	1.0	Work In Progress						Monthly Category 3 Spill	5517 10th St.	12/01/2024 12:45	12/01/2024 13:00	12/01/2024 14:30					37.55701	-120.91078	Inside Building or Structure			100		N						100	Building or Structure															Debris-General		Gravity Mainline		Vitrified Clay		60		N				Adjusted Schedule/Method of Preventive Maintenance																															
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	898333	1.2	Certified	Kent Vian	Asst. Deputy Director		28-JAN-25	28-JAN-25	Monthly Category 3 Spill	NOT# 40201189248 5009 GREENWILLOW LN.	12/30/2024 08:18	12/30/2024 09:15	12/30/2024 08:15				THE SPILL ORIGINATED FROM A MANHOLE LOCATED ON A DIRT HILL.	32.93472	-117.20825	Manhole	NA	N/A	425	THE SPILL EXITED THE MANHOLE, TRAVELED WEST TO THE SIDEWALK/CURB AND GUTTER, THEN TRAVELED NORTH INTO A STORM DRAIN AND CONTINUED NORTH WHERE THE SEWER WAS CAPTURED, CONTAINED AND RETURNED TO THE SEWER SYSTEM.	Y	THE DRAINAGE CONVEYANCE SYSTEM WAS A 24  ENCLOSED CONCRETE PIPE LOCATED JUST NORTH OF WHERE THE MANHOLE OVERFLOWED.	375				420	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface	NA	THE SPILL EXITED THE MANHOLE, TRAVELED WEST TO THE SIDEWALK/CURB AND GUTTER, THEN TRAVELED NORTH INTO A STORM DRAIN AND CONTINUED NORTH WHERE THE SEWER WAS CAPTURED, CONTAINED AND RETURNED TO THE SEWER SYSTEM.	Y	32.93469	-117.20849	32.93817	-117.21175					12/30/2024 09:40	THE SPILL VOLUME CALCULATIONS WERE CALCULATED USING THE SPILL VOLUME AND DURATION METHOD FOR DISCHARGE AND RECOVERY.	THE ASSUMPTION OF WHEN THE SPILL STARTED WAS WHEN A CUSTOMER REPORTED THE SPILL TO DISPATCH, AND THE END TIME WAS WHEN CREWS RELIEVED THE BLOCKAGE, AND THE SPILL STOPPED.	Root Intrusion	ROOT INTRUSION IN THE MANHOLE.	Manhole	NA	Concrete; Polyvinyl Chloride (PVC)	NA	26	THE IMPACTS OF THE SPILL WERE TO THE STORM DRAIN, SIDEWALK AND THE CURB AND GUTTER.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	THE CREW WASHED DOWN THE SIDEWALK, CURB AND GUTTER AND STORM DRAIN AND COLLECTED THE WATER DOWNSTREAM.	CREWS IMMEDIATLY CONTAINED THE SPILL USING A COMBO TRUCK AND CLEANED UP THE AREA AFTER THE SPILL STOPPED.	Inspected Sewer Using CCTV to Determine Cause	NA	REFERED MANHOLE TO BE REHAB IN HOUSE. ADDED ASSET TO MAINTENANCE SCHEDULE. 		12/30/2024 18:00	THE SPILL WAS CAUSED BY HEAVY ROOT INTRUSION IN THE MANHOLE THAT WAS SPILLING.		NONE	12/30/2024 18:30														NA	SCHEDULE MISSED ITS FREQUENCY. 	NOT AT THIS TIME 	YES, MANHNOLE WILL BE REHAB. 	N/A	N/A	YES, SEE ATTACHED GREENWILLOW DOC	N/A	NONE	
5S	5SSO10722	Active	City Of Auburn CS	Auburn City	898334	1.6	Certified	Mengil A Deane	Public Works Director	31-DEC-24	31-DEC-24	31-DEC-24	Category 1 Spill	Auburn Ravine Trail Park	12/30/2024 13:30	12/30/2024 13:50	12/30/2024 13:30	12/30/2024 15:22	24-7252		Auburn Ravine Trail Park. Spill out of manhole.	38.90759	-121.0746	Manhole		Manhole	10500	Auburn Ravine Trail Park	Y	Auburn Ravine Trail Park	0	0	Manhole	10500	0	Surface Water; Unpaved Surface		Auburn Ravine Creek	N									12/30/2024 15:50	Gallons by the minute x spill minutes	Picture chart	Root Intrusion		Manhole		Vitrified Clay		45	Park closer	N	Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow	Cal OES	Flow rested then hazardous material  abatement crew dispatched. 	Adjusted Schedule/Method of Preventive Maintenance; Plan Rehabilitation or Replacement of Sewer		Create work order for manhole inspection every 6 months	First quarter of 2025	12/31/2024 13:00	Inspection of manhole and manhole contained roots	N			Auburn Ravine Creek	Stream/Creek		Auburn Ravine Creek	None	Public Closure		City of Auburn	4	Y	Y	Auburn waste water treatment facility	PH, dissolved oxygen EC 										
1	1SSO11419	Active	Humboldt CSD CS	Humboldt CSD	898335	1.3	Certified	Terrence WIlliams	General Manager	08-JAN-25	13-JAN-25	13-JAN-25	Category 1 Spill	Hoover, Park, and North Street	12/29/2024 05:00	12/29/2024 05:00	12/29/2024 05:00	12/29/2024 08:30	24-7221		Appearance Point #1:  This spill occurred from 5:00 AM to 11:30 AM and the spill originated at 1060 Hoover Street when the amount of flow due to the high rain event began to overwhelm the pumps. Attachments Hoover 1-4 show the Districts recovery efforts using the vac-truck and sandbags to control the spill. It was estimated that 19,500 gallons of waste water escaped the manhole in total and was contained by sandbags. The Vac-Truck took 9 loads and was able to recover 18,450 gallons of the spill.	40.800932	-124.137264	Manhole	N/A	Appearance Point #2: This spill originated near 2820 North Street and occurred from 6:00 AM to 11:00 AM. It was estimated that 1,500 gallons of waste water escaped the manhole in which 0 gallons were recovered. Attachment North Street 1 shows sewer escaping the manhole at the spill site.  Appearance Point #3: This spill originated near 3383 Park Street and occurred from 6:00 AM to 8:30 AM. It was estimated 750 gallons of wastewater escaped the manhole in which 0 gallons was recovered. Attachments Park Street 1 and 2 shows sewer escaping the manhole at the spill site.	21750	Appearance Point #1: This spill was contained by sandbags within the lift station and most of the sewer was recovered and what was unrecoverable spilled into a nearby drainage channel to the Humboldt Bay. 1050 Gallons in total were unrecoverable at this site.  Appearance Point #2: The unrecovered wastewater from this spill traveled to a nearby drainage channel that ultimately flows into the Humboldt Bay. 1500 Gallons in total were unrecoverable at this site  Appearance Point #3: The unrecovered wastewater from this spill traveled to a nearby drain inlet located downstream of the manhole. 750 Gallons in total were unrecoverable at this site	Y	Appearance Point #1 Drainage - This attachment shows the drainage conveyance system near the Hoover Lift Station in which the unrecovered sewer would travel to the Eureka Slough ultimately flowing to the Humboldt Bay  Appearance Point #2 Drainage 1-2 - These attachments show the vegetation surrounding the manhole at this overflow point. This area is located next to the Eureka Slough which ultimately flows the Humboldt Bay  Appearance Point #3 Drainage 1-4 - These attachments show the surrounding area of the stormwater drainage inlet at this overflow point. HCSD does not manage stormwater infrastructure, but it is likely that the unrecovered sewer would ultimately travel to the Dead Mouse Marsh and Freshwater Slough which flows into the Humboldt Bay	18450	3300	*Note - At each Appearance Point, the unrecovered sewer did not flow directly into surface water, but it is believed that the unrecovered sewer likely traveled to the Humboldt Bay from each site through a drainage conveyance system � Appearance Point #1 Drainage - This attachment shows the drainage conveyance system near the Hoover Lift Station in which the unrecovered sewer would travel to the Eureka Slough ultimately flowing to the Humboldt Bay  Appearance Point #2 Drainage 1-2 - These attachments show the vegetation surrounding the manhole at this overflow point. This area is located next to the Eureka Slough which ultimately flows the Humboldt Bay  Appearance Point #3 Drainage 1-4 - These attachments show the surrounding area of the stormwater drainage inlet at this overflow point. HCSD does not manage stormwater infrastructure, but it is likely that the unrecovered sewer would ultimately travel to the Dead Mouse Marsh and Freshwater Slough which flows into the Humboldt Bay 	3300	18450	Other (specify below)	Appearance Point #1: Occurred in Lift Station out of manhole Appearance Point #2: Occurred out of manhole into surrounding vegetation Appearance Point #3: Occurred out of manhole into nearby D.I.	Hoover Spill: Occurred in Lift Station out of manhole North Street Spill: Occurred out of manhole into surrounding vegetation Park Street: Occurred out of manhole into nearby D.I.	Y	40.8000911	-124.137186	40.800912	-124.135441	40.795134	-124.12812			12/29/2024 11:30	Spill volumes were estimated by the eyeball method because each spill was a surging event. The recovery efforts were quantified by how many gallons were recovered based on the volume of each tank of the Vac-Trucks.	District Staff was onsite and was able to document exactly when the spill began. District staff worked until normal flow was restored to each site and cleanup recovery was completed which marked the end of the spill	Flow Exceeded Capacity (Separate Collection System Only)		Manhole		Other (specify below)	N/A because there was not a pipe failure.  SSO was caused by significant rain event overwhelming lift station.  	50	Appearance Point #1 at Hoover: This spill occurred from 5:00 AM to 11:30 AM. It was estimated that 19,500 gallons of waste water escaped the manhole in total and was contained by sandbags. The Vac-Truck took 9 loads and was able to recover 18,450 gallons of that load. It was estimated that 1,050 gallons escaped and was unrecoverable.  Appearance Point #2 at North Street: This spill occurred from 6:00 AM to 11:00 AM. It was estimated that 1,500 gallons of waste water escaped the manhole in which 0 gallons were recovered.  Appearance Point #3 at Park Street: This spill occurred from 6:00 AM to 8:30 AM. It was estimated 750 gallons of wastewater escaped the manhole in which 0 gallons was recovered.	Y	Contained All or Portion of Spill		Sandbags were placed around the manhole and two vac-trucks were brought to recover as much sewer as possible	Plan Rehabilitation or Replacement of Sewer		On 12/31/24 District installed new pump to increase flow capacity by 500 GPM. The installation of this pump was part of the District's current 24/25 CIP program, but the installation of the pump was moved ahead of schedule as a result of this SSO event to prevent the potential of a future spill. In April the District will be upgrading and rehabilitating the rest of the Hoover lift station to increase flow capacity through the system which will further reduce the risk of future SSO's. The District is also currently working on a grant funded project to create a containment barrier around the Hoover Lift station which will enable the recovery of up to 300,000 gallons in the event of an SSO.	Milestone 1: On 12/31/24 District installed new pump to increase flow capacity by 500 GPM Milestone 2: In April the District will be upgrading and rehabilitating the Hoover lift station to increase flow capacity through the system Milestone 3: Summer of 2028 anticipated completion of containment barrier.	12/29/2024 12:00	This spill was due to a heavy rain event which resulted in high flow through the system that overwhelmed the Hoover Lift Station.	N			Eureka Slough	Slough		The eureka slough drains directly to the Humboldt Bay	None	Other (specify below); Temporary Restricted Use	Humboldt Bay Shellfish Harvesters were immediately notified and local shellfish farmers were instructed to shut down for two weeks from the spill original spill date	Humboldt Bay Shellfish Harvesters through CA Department of Public Health 	14	N	N												
2	2SSO10190	Active	SBSA CS	Silicon Valley Clean Water	898366	1.3	Certified	Daniel Buenrostro	Chief Operating Officer	31-DEC-24	11-JAN-25	11-JAN-25	Category 2 Spill	1581 Maple St Redwood City Ca 94065 S.E. corner of the PS Air relief vault 	12/29/2024 18:06	12/29/2024 18:37	12/29/2024 16:27				Sewage came out of an Air relief vault over a 33  force main.	37.49318	-122.2213	Force Main; Other (specify below)	Air relief vault from the 33  force main		3380	On the pump station property and the immediate area of the street in front of the pump station. 	N			0			3125	Other (specify below); Paved Surface; Unpaved Surface	The current pump station property is in the process of being repaved. The unpaved surface before the spill event was below grade in preparation for the new asphalt. The construction created a containment area for the spill.	The SSO was located at our Pump Station facility coming from an ARV located in a manhole attached to a 2  riser from a 33  force main. Ongoing construction of a new roadbed created a containment area for the spill because the unpaved surface was below grade. Once the containment filled, flow began to seep through near a light stanchion on the Northwest corner. 	Y	37.49308	-122.2214	37.49318	-122.22131	37.49338	-122.22167	37.49345	-122.22182	12/29/2024 19:17	My initial estimate was a visual estimate of flow coming from over the lip of the manhole were the ARV sits in a vault. A tape measure was used to determine the spill area and volume. 	Our first indication of an SSO was reported by Redwood City Collection Crew at 18:06.   The Redwood City Collection crew was notified by the Redwood City Police dispatch at 1803.   Upon further investigation, it was determined that Sargeant Cang first noticed the spill at 16:27 on 12/29/24. The spill was stopped at 19:17 by diverting the flow to a booster wet well which lowered the force main line pressure.   Once the line pressure was reduced, the isolation valve in the ARV vault was closed to prevent future SSO and completion of spill investigation.  	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure	The ARV was not fully seated, therefore allowing some flow out of the 2  riser out of the 33  force main.	Air Relief Valve (ARV)/ Blow-Off Valve (BOV)		Other (specify below)	The ARV sits on top a 2  riser in a vault attached to the 33  force main. The ARV was not fully seated on the 2  riser. 	8	There was no public and or environmental impact from this spill event. The impact was self-contained due to contaminated soil that was removed to allow the roadbed work to proceed.   	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned Portion of Spill to Sanitary Sewer System	 	The City Redwood City Corp Yard used their vactor truck to collect any seepage coming from the pump station property. Once we diverted flow to our booster station, the flow subsided due to reduced force main line pressure which stopped the flow, lowered the water in the ARV vault and provided access to the isolation valve. At the time the ARV isolation valve was closed. Dirt and sandbags were used to prevent any further seepage from the pump station property. The vactor truck crew removed standing water located on pump station property and then proceeded to remove any residual standing water outside of the property on Maple Street  Additionally, the construction spill prevention covers were removed from the 3 storm drains on maple street, vacuumed out and flush with clean water. Once completed, the construction spill prevention covers were placed back on the storm drains. The following day 3-4  of contaminated of topsoil was removed from the pump station roadbed.	Other (specify below)	The ARV was changed to manual operation by opening the isolation valve on a set PM schedule.  A work order was created to investigate the current ARV style to determine if there is a better option at this location. Which will allow for auto operation of the ARV. 	The ARV was changed to manual operation by opening the isolation valve on a set PM schedule.  A work order was created to investigate the current ARV style to determine if there is a better option at this location. Which will allow for auto operation of the ARV. 	Follow up to the work order will be done weekly in the Operations and Maintenance Planning and Scheduling meetings. Engineering will be involved as well. 	12/30/2024 16:00	The ARV sits on top of a 2-inch riser in a vault attached to the 33-inch force main. Due to restrictions in the vault the physical connection cannot be verified and a bracket was installed on top of the vault to act as an indicator when the ARV is secured. A work order has been generated to explore different ARV options in this vault.	N												N													
2	2SSO10183	Active	San Mateo CIty CS	San Mateo City	898372	1.2	Certified	Tony Baltodano 	PW Field Maintenance Manager 	31-DEC-24	02-JAN-25	02-JAN-25	Category 1 Spill	S Norfolk st. and Lago st.	12/31/2024 11:15	12/31/2024 11:30	12/31/2024 11:15	12/31/2024 13:06	24-7269		sewer main plugged, sewer flow backed up to manhole and overflowed onto public street	37.54581	-122.2846	Gravity Mainline; Manhole			3200	sewage spill onto public street	Y	3000 gal made its way to storm system that leads out to SF Bay	200	3000	3000 gal made its way to SF Bay	3000	200	Drainage Conveyance System that discharges to surface water		The gravity sewer main was found plugged causing low point manhole to overflow on to the street. 	Y	37.54581	-122.2846							12/31/2024 11:23	Visual duration and flow and Sandiego method was used. 	The spill start time was 11:15 am on 12/31/24 and spill end time was 11:23 on 12/31/24	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		68	Sewage flowed to the lagoon. 	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Staff hydro jetted the plugged sewer main to restore the flow. They were able to capture 200 gallons. Once the sewer main was flowing, staff washed the street and vacuumed all solids and water. 	Staff hydro jetted the plugged sewer main to restore the flow. They were able to capture 200 gallons. Once the sewer main was flowing, staff washed the street and vacuumed all solids and water. 	Adjusted Schedule/Method of Preventive Maintenance; Post Spill CCTV		At the time of the plug, the sewer main was hydro jetted to get the sewer flow going. Follow up consisted of follow up hydro jetting and CCTV. 	N/A	12/31/2024 12:40	It was found that the main had developed FOG build up. 	N			Marina lagoon	Slough		Marina lagoon 	None	Other (specify below)	None	City of San Mateo Regulatory Compliance Department. 	0	Y	N												
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	898403	1.1	Certified	Kent Vian	Asst. Deputy Director		28-JAN-25	28-JAN-25	Monthly Category 3 Spill	NOT-40201189658-1394 NEW CHATEL DR.	12/30/2024 16:03	12/30/2024 16:35	12/30/2024 16:03				SPILL DISCHARGED FROM MANHOLE 258 RAN EAST TO CURB AND SETTLED INTO STORM DRAIN JUST SOUTH OF MANHOLE 258 THAT WAS THE ONLY APPERANCE POINT.	32.57136	-117.08948	Manhole	N/A	N/A	67	SPILL DISCHARGED FROM MANHOLE 258 RAN EAST TO CURB AND SETTLED INTO STORM DRAIN JUST SOUTH OF MANHOLE 258 THAT WAS THE ONLY APPERANCE POINT.	N	N/A	0				10	Paved Surface; Street/Curb and Gutter (2 3)	N/A	THE SPILL SETTLED IN STORM DRAIN JUST EAST OF MANHOLE 258.	Y	32.57136	-117.08948							12/30/2024 17:10	THE SPILL START WAS DETERMINED WHEN THE CONSUMER CALLED IN TO REPORT THE SPILL AND THE END TIME WAS WHEN THE CREWS VISUALLY CONFIRMED THE SPILL STOPPED.	THE SPILL WAS CALCULATED USING THE VISUAL CALCULATED METHOD	Fats, Oil and Grease (FOG)	N/A	Gravity Mainline	N/A	Polyvinyl Chloride (PVC)	N/A	48	THE SPILL IMPACTED THE CURB AND GUTTER AND STORM DRAIN.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow	CLEANED UP STORM DRAIN AND WASHED DOWN CURB AND GUTTER.	CREWS SET UP CONTAINMENT RELIEVED STOPPAGE TRACKED FINAL DESTINATION FLUSHED TWO UP AND TWO DOWN CLEANED UP AREA AND STORM DRAIN CCTV MAINS TWO UP AND TWO DOWN.	Inspected Sewer Using CCTV to Determine Cause	N/A	NOTIFIED CONSUMERS VIA DOOR HANGERS, RE ADDED TO MAINTENANCE SCHEDULE. 		12/30/2024 17:10	THERE WAS A BLOCKAGE DOWNSTREAM IN A 8INCH PVC SEWER MAIN.		NO	01/02/2025 14:30														N/A	ASSET MISSED ITS CLEANING FREQUENCY LEFT OPEN BY EPM. 	YES, RE ADDED	NOT AT THIS TIME 	N/A	N/A	YES, SEE ATTACHED NEW CHATEL DOCS	N/A	NO	
1	1SSO10044	Active	Mckinleyville CS	McKinleyville Community Service District	898408	1.2	Certified	Patrick F Kaspari	General Manager		02-JAN-25	02-JAN-25	Monthly Category 3 Spill	Bella Vista Hill at Central	12/05/2024 11:01	12/05/2024 11:09	12/05/2024 11:01				Mainline approximately 10-feet east of  MH3-74A	40.92812	-124.10076	Gravity Mainline			80	Mainline spill to asphalt on Central Avenue, McKinleyville	N						80	Paved Surface		Downhill from spill point on asphalt, approximately 3-feet wide by 40-feet long	N									12/05/2024 11:09	5-gallon bucket test	Report of spill was estimated start time, and spill was over when operator arrived 8-minutes later, which was assumed to be the end time	Damage by Others Not Related to Collection System Construction/Maintenance		Gravity Mainline		Polyvinyl Chloride (PVC)		12	Wetting of asphalt prior to recovery of spill	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Sweeping, pressure washing of asphalt.  Use of vaccon to suck up all materials and wash water at dike established downhill of spill	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect	CCTV established that fiberoptic contractor had bored through pipe.  They replace section of pipe they damaged	Mainline repaired by responsible contractor		12/05/2024 11:09	Fiber optic contractor bored through the mainline while installing fiber as confirmed by CCTV inspection.  Contractor replaced section of damage mainline with our assistance.		Not applicable	12/05/2024 11:09														Not Applicable	Not Applicable	Not Applicable	Mainline was repaired	Mainline was repaired	Mainline was repaired	Not applicable	Not applicable	Not applicable	
5S	5SSO10890	Active	City Of Antioch CS	Antioch City	898412	1.3	Certified	Toby A Beach	Collection System Superintendent		08-JAN-25	08-JAN-25	Monthly Category 3 Spill	14th and Cook st middle intersection	12/10/2024 12:19	12/10/2024 12:24	12/10/2024 12:15				The spill appearance point came out of a  manhole in the intersection 14th st and Cook st. Manhole # G22-1-031 	38.0084	-121.81725	Manhole	N/A	none	115	Sewage overflowed from a manhole, spilling onto the street curb and gutter before entering the city�s storm catch basin. The flow reached a section of an 18-inch storm line. To contain the situation and prevent further spread, absorbent material was added to the downstream storm manhole. Pictures were taken.	Y	The spill traveled through the storm drain system. Upon locating the endpoint, the affected area was vacuumed and cleaned using a combo truck. All recovered material was returned to the sewer main system.	99				115	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)	n/a	The crew was able to establish containment and subsequently, they returned the entire spill to the sewer system.  	Y	38.0097	121.81726							12/10/2024 12:31	The spill volume estimations were calculated using the Area/Volume Method.  A sketch is attached	We interviewed all surrounding neighbors to gather information to determine our estimated spill start time. The stop time was determined by the time the responding crew relieved the plug in our main. 	Debris-Rags		Gravity Mainline		Vitrified Clay	N/A	58	The spill was contained at its final destination. Spill was fully recovered. No harmful impact.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	Added a smart cover to prevent any issues of recurring 	The spill was contained at its final destination. Absorbent material was applied to prevent further flow into the downstream storm manhole. The sewer spill affected one storm line segment, but measures were taken to prevent it from progressing further. The blockage was cleared to stop the spill.  The affected area in storm line was thoroughly cleaned and vacuumed using a combo truck.	Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Post Spill CCTV	Added a smart cover to prevent any issues of recurring 	Installed a smart cover to monitor the excessive disposal of paper towels in school toilets. Coordinated with the head custodian to address and resolve the issue immediately.		12/10/2024 13:10	we televised the main line and found paper towels to be caused of the stoppage. Added line to a 6-month cctv follow-up. added smart cover and a weekly manhole inspection		Smart cover added	12/10/2024 13:11														no regulatory action taken	Smart cover added to ensure prevent any spills 3-month follow-up. Weekly inspection of manhole	N/A	N/A	Smart cover monitoring weekly manhole inspection  	No Capital improvement needed	 Noted in our sewer spill debriefing meeting.	Based on review of our response, no modifications are required.	Smart cover added	
5S	5SSO10722	Active	City Of Auburn CS	Auburn City	898416	1.2	Certified	Mengil A Deane	Public Works Director		03-JAN-25	03-JAN-25	Category 1 Spill	564 Auburn Ravine Rd	12/31/2024 12:30	12/31/2024 13:23	12/31/2024 12:30	12/31/2024 15:11	24-7273		564 Auburn Ravine Rd SSO, manhole overflowing	38.90947	-121.07395	Gravity Mainline; Manhole			3000	Sanitary sewer was overflowing out of the pick hole of the manhole cover and flowing down the sidewalk into a storm drain	Y		0	500	Storm drain flows directly into Auburn Ravine creek	3000	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		Spilled into a drainage conveyance system that discharges to surface water stream (Auburn Ravine Creek) 	N									12/31/2024 14:00	Spill volumes were calculated using a sewer overflow estimating sheet 	Spill volumes were calculated using a sewer overflow estimating sheet, based on pictures of how much sewer was overflowing out of manhole to calculate GPM which was multiplied by length of time it was overflowing. 	Root Intrusion		Gravity Mainline; Manhole		Other (specify below)	transite (AC pipe)	50	impact to creek 	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow	Cleaned spill using hydro-vac truck. CCTV mainline 	Stopped spill by hydro jetting mainline, clearing blockage, Used hydro-vac truck to clean up remaining of spill on sidewalk that did not make it into storm drain	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		bi-yearly inspection of the city manholes and mainline of the whole road. 	every 6 months	12/31/2024 14:30	found a lot of roots in manhole that were causing blockage to flow	N			Auburn Ravine Creek	Stream/Creek		Large heavy flow creek 	none	Temporary Restricted Use		city of auburn	2	Y	N												
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	898420	1.3	Certified	John J. Hough	San Dist. Superintendent	02-JAN-25	14-JAN-25	14-JAN-25	Category 1 Spill	353790	12/31/2024 12:03	12/31/2024 13:15	12/31/2024 12:03				See Attached Spill map with Photos.	38.6027	-121.3294	Manhole			209	See Attached Spill map with Photos.	Y	See Attached Spill map with Photos.	23	0	See Attached Spill Map with Photos	184	25	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		See attached Spill Map with Photos.	Y	38.60273	-121.32939	38.60271	-121.32942	38.6015	-121.32851			12/31/2024 13:30	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Debris-Rags		Gravity Mainline		Vitrified Clay		58	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified Sacramento County Water Resources Drainage Operations and Maintenance and Sacramento County Environmental Management Department.	See Attached Description of Spill Event	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		See Attached Description of Spill Event.	SacSewer inspected the mainline with CCTV on January 2, 2025. Based on the findings, SacSewer adjusted the preventative maintenance schedule from a 24-month frequency to a 12-month frequency.	12/31/2024 17:00	See Attached Description of Spill Event	N			American River	River		American River with moderate flows	No observed impacts to aquatic life	Other (specify below)	No public access impact. Posted health warning signs.	N/A	0	N	N												
8	8SSO10590	Active	Newport Beach City CS	Newport Beach City	898421	1.4	Ready to Certify	Michael Lynch	Wastewater Supervisor	02-JAN-25			Category 1 Spill	500 Orchid Ave.	12/31/2024 01:30	12/31/2024 02:10	12/31/2024 01:30				Lat 33.59556 Lon117.86713	33.59556	117.86713	Lower Lateral (Public); Other Sewer System Structure	Mainline blockage came out at upstream cleanout.		750	Vactor was set up at the gutter below address upon arrival and second Vactor cleared the blockage from the manhole on Second Ave.	Y	Curb and gutter to Storm drain catch basin 406 Orchid Ave, Lat 33.59485, Lon 117-86838.	500	250	Lat33.59280, Lon 113.86575 Overgrown area behind 287 Evening Canyon Rd.	250	500	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		The spill ran from the city clean out at 503 Poinsettia Ave. to the storm drain at 400 Orchid Ave.  Although storm drain from this location is not mapped, we believe it leads to 	Y	33.59561	-117.86703							12/31/2024 18:30	The measured area of the gutter was 6 inches wide, 1/4'' deep and flowing approximately 1 fps.  At .01 cfs the estimate was calculated to be a flowrate of 5 gallons per minute. 50 minutes passed before the spill was contained. after 100 more minutes the blockage was cleared.	The measured area of the gutter was 6 inches wide, 1/4'' deep and flowing approximately 1 fps.  At .01 cfs the estimate was calculated to be a flowrate of 5 gallons per minute. 50 minutes passed before the spill was contained. after 100 more minutes the blockage was cleared. This brings us to 250 gallons entered the storm drain. 500 gallons were contained in the vacuum truck and within the berm.	Collection System Maintenance Failure (specify below); Root Intrusion	Multiple root intrusions were found in the section of main.	Gravity Mainline		Vitrified Clay		78	The spill entered the storm drain conveyance system. We could not see any evidence of the spill reaching the discharge waters.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Spill containment consisted of a dirt berm and vacuum truck. Once blockage was cleared a secondary truck hosed the area of gutter and alley to the downstream vacuum truck. 	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		This section of main was added to our quarterly maintenance schedule. This will also be on our annual root foaming list until repairs are made.	1:30 pm the on call personnel were notified. 2:10 spill was contained. 3:06 the blockage was cleared. Cleanup ended at 6:30 pm. 	01/13/2025 06:30	CCTV revealed multiple root intrusions in the entirety of this section of main.	N			Pacific Ocean	Ocean		The storm drain is believed to enter discharge waters at a private beach located below Shorecliff Rd.	None	Other (specify below)	No public closure. 	Orange County Department of Public Health	0	Y	N												
5S	5SSO11040	Active	Riverbank CS	Riverbank City	898422	1.1	Certified	Cody Bridgewater	Director of Public Works		02-JAN-25	02-JAN-25	Monthly Category 3 Spill	Burneyville Ct	01/02/2025 09:14	01/02/2025 09:25	01/02/2025 09:14				flow from sewer manhole into catch basin located approximately 20 feet away	37.73351	-120.93246	Manhole			540	flow from manhole into storm drain catch basin	Y	gravity storm drain to basin	0				0	Groundwater Infiltration Basin or Facility; Unpaved Surface		storm drain basin	Y	37.73503	-120.93934							01/02/2025 11:15	27 connections at 10 gallons per hour peak flow x 2 hours of flow time	27 connections at 10 gallons per hour peak flow x 2 hours of flow time	Debris-Rags; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		50	gravity storm line and infiltration basin	N	Restored Flow		arrived on site with vacuum truck, relieved plug and restored flow, cleaned street with water and bleach	Adjusted Schedule/Method of Preventive Maintenance		increase cleaning frequency		01/02/2025 15:14	Phonecall recieved from resident complaining of sewer issues, plugged line discovered, and relieved.		na	01/02/2025 15:21														na	na	quarterly	na	na	na	na	na	na	
8	8SSO10617	Active	Eastern Municipal Water District CS	Eastern Municipal Water District	898423	1.7	Amended	Ken Tagney	Director of Water Reclamation	14-JAN-25	17-JAN-25	17-JAN-25	Category 1 Spill	Day Street Lift Force Main	12/31/2024 12:15	12/31/2024 12:15	12/20/2024 08:59	12/31/2024 13:51	24-7270	14-FEB-25	The spill originated from a sewer force main located near the intersection of Cottonwood Avenue and Day Street in the City of Moreno Valley. The discharge was observed emerging from the ground within the Riverside County Flood Control property on the northeast side of the above intersection.	33.92431	-117.27854	Force Main			7015160	The spill flowed from the point of origin into the Riverside County Flood Control basin, (West End Moreno MDP, Towngate Basin) where it flowed out the outlet of the basin at Day St., and Cottonwood Ave. It then flowed underground through the Edgemont Channel. Edgemont Channel then daylights about 550 feet East of Old 215 Frontage where the concrete channel then continues above ground until reaching Old 215 Frontage. On the West Side of Old 215 Frontage the water flows into an earthen riparian drainage channel until reaching the eastside of the 215 freeway where the water then flows under the freeway. On the westside of the freeway the water flows into Sycamore Creek. The Creek then enters Sycamore Canyon Park. Flow from the creek was traced to Canyon Crest County Club where there was no observable spill material in the flowing water.  	Y	Stormwater basin and concrete drainage channel. 	867000	0	Edgemont Channel to Sycamore Creek. 	6148160	867000	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water		The spill flowed from the point of origin into the Riverside County Flood Control basin, (West End Moreno MDP, Towngate Basin) where it flowed out the outlet of the basin at Day St., and Cottonwood Ave. It then flowed underground through the Edgemont Channel. Edgemont Channel then daylights about 550 feet East of Old 215 Frontage where the concrete channel then continues above ground until reaching Old 215 Frontage. On the West Side of Old 215 Frontage the water flows into an earthen riparian drainage channel until reaching the eastside of the 215 freeway where the water then flows under the freeway. On the westside of the freeway the water flows into Sycamore Creek. The Creek then enters Sycamore Canyon Park. Sycamore Creek flows to Canyon Crest Drive; no observable spill material was observed at Canyon Crest Drive.	Y	33.92444	-117.27844	33.92392	-117.28464	33.92046	-117.29176			01/02/2025 00:50	Spill volume was calculated based on Day Street Lift Station flow rate data from a professionally installed meter multiplied by the duration of the spill that was determined from available SCADA data. 	Day Street Lift Station SCADA data trends.  	Other (specify below)	The cause of the spill is still under investigation. 	Force Main		Polyvinyl Chloride (PVC)		30	The spill closed down Day Street between Cottonwood Ave. and Dracaea Ave. for two days. The spill also impacted the flood control basin and well as the out let channel. The spill also affected Sycamore Creek. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	EMWD is cleaning the Edgemont Channel. Clean up of the basin is taking place currently. 	EMWD responded to the spill and worked to isolate the line and bypass the affected pipeline segment.  The Spill was contained in a retention basin upon discovery as apart of the response effort to mitigate impacts. 	Other (specify below)	Spill investigation is currently ongoing. 	Spill investigation is currently ongoing. 	Spill investigation is currently ongoing. 	01/14/2025 13:00	The SSO was caused by a break in a segment of the sewer force main leading from the adjacent Day Street Lift. The break was located adjacent to the intersection of Day Street and Cottonwood Avenue. 	Y	Spill cause and impact evaluations are ongoing. 	02/16/2025 18:00	Sycamore Creek	Stream/Creek		Seasonal Creek. 	None. 	Other (specify below)	Signage posted for contaminated water. 	Not appliciable	0	N	Y	Water quality samples where taken at the point of entry, upstream samples where taken at the flood control basin adjacent to the intersection of Day Street and Cottonwood Avenue, in the City of Moreno Valley. A downstream sample was collected  on the southwest side of Old 215 Frontage road in Riverside adjacent to where Cottonwood Avenue and Old 215 Frontage Road intersect. A secondary downstream sample was also taken from the Canyon Crest Country Club in Riverside. 	The samples where analyzed for Total and Fecal Coliform as well as Ammonia. 									Spill cause and impact evaluations are ongoing. 	
1	1SSO10058	Active	Rio Dell City CS	Rio Dell City	898428	1.2	Certified	Sunshine Kelly	Wastewater Superintendent	03-JAN-25	09-JAN-25	09-JAN-25	Category 1 Spill	End of Painter Street Manhole	01/03/2025 06:00	01/03/2025 06:55	01/03/2025 02:30	01/03/2025 07:09	25-0021	24-JAN-25	The spill was located at the Painter Street manhole at 556 Painter St. Photos attached show spill location. 	40.503117	-124.093756	Manhole			53550	The spill was located at the Painter Street manhole and flowed down the gravel ditch away from the residential area toward the Eel River, river bar. Photos show the sandbags, and ditch in place to direct the flow away from the residential area. 	N				Pictures show the spill stream running toward the Eel River, and a picture of where the spill stream entered the rising Eel River.	13550	40000	Surface Water		The Spill flowed to the Eel River at Latitude/ Longitude: 40.503055, -124.091890.	Y	40.503055	-124.09189							01/03/2025 15:00	The volume estimation was based on flow monitoring at the site as well as supervisory control from SCADA based on the trend of the Painter Street lift station wet well level and pump control and the influent flow data into the plant. Volume estimation of spill recovery was based on the volume of the Vac-Tor. the Vac-Tor truck carries 2000 gallons and twenty full recoveries were completed during the duration of the spill. 	The methodology of the spill start time was based on supervisory control based on SCADA of the data collected on the Painter Street Pump station trend, and the rain gauge at the Wastewater treatment plant. We were prepared for the event and had sandbags, a ditch to convey the spill away from residential properties, signs posted and the Vac-Tor truck was on standby to respond once notified of spill.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Other (specify below)	The failure is that the sanitary sewer main at this location was constructed with a 90 degree turn at this manhole and the earthquake in December of 2022 destroyed sewer mains, and the earthquake on December 5th, 2024 added to the damage of sewer mains, and private laterals, allowing more I&I to enter this portion of the sanitary sewer system. An upsizing project for this section of the sanitary sewer system is in the works since 2019 and will hopefully see some forward momentum with state funding this spring and summer, before the next wet season. CCTVing is an ongoing process under the current SSES, and a few key areas had camera work done to them in November 2024.	55	There was no impact to residence, or private property, or human life as spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage posted, Vactor Truck on standby, and the property owners were made aware of the issue at this site location.	Y	Cleaned Up (specify below); Contained All or Portion of Spill		Spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage installed, property owners were notified and the Vac-Tor truck recovered twenty loads, 2000 gallons each, to the Wastewater Treatment plant for treatment. Once the SSO was over, and recovered, chlorine disinfectant was sprayed in the path of the SSO and surrounding area.	Plan Rehabilitation or Replacement of Sewer		This site has a planned upsizing project in the planning phases for the past 6 years. Currently waiting on State funding to push the design process forward. Also looking to camera sewer mains and do a smoke test of the laterals in the area that lead to the Painter Street Pump Station.	Meeting with the State Water Control Board and Engineering company GHD on January 24th, 2024, provided some comfort that the State would approve the funding of this project, and the City of Rio Dell can start the design process. CCTV-ing of some of the sewer mains that lead to the pump stations up stream of this manhole were just completed in November, 2024. The data is being reviewed currently. 	01/03/2025 15:45	This SSO occurred due to the high levels of I&I. Several days of rain and saturation of the ground caused the pump station to become overwhelmed when large amount of rain occurred at once and caused the SSO at this location, the Painter Street manhole. Rio Dell saw 14.5 inches of rain in November 2024, and 10.75 inches of rain in December, 2024. The ground is saturated contributing to any amount of rain causing infiltration of groundwater into broken mains and sewer laterals.	N			Eel River	River		The Eel River is a large river that runs north on the east side of the City of Rio Dell. There are no Surface Water users downstream of the SSO discharge location. 	No known impacts to aquatic life.	Temporary Restricted Use		City of Rio Dell Wastewater Superintendent 	1	N	Y	A sample was taken upstream in the river of the spill location; RSW-001U: Latitude/Longitude (40.496013, -124.093796) A sample was taken where the spill stream enters the Eel River; RSW-001: Latitude/Longitude (40.503055, -124.091890) A sample was taken downstream in the river of the spill location; RSW-001D: Latitude/Longitude (40.508887, -124.111481)	Per the City of Rio Dell SSO Water Quality Monitoring Plan Samples were analyzed for E.coli and Ammonia.										
5S	5SSO10901	Active	City of Sacramento Utilities CS	Sacramento City	898430	1.3	Certified	Kevin Guerra	Superintendent	03-JAN-25	14-JAN-25	14-JAN-25	Category 2 Spill	7280 Cromwell Way, Sacramento Ca. 95822	12/30/2024 07:59	12/30/2024 08:43	12/29/2024 17:00	12/30/2024 14:15	24-7247		The spill appeared at a sewer manhole in the street in front of the reporting address. It then traveled to the gutter pan and  North to a Drain inlet, where it entered the conveyance system.	38.4932	-121.4986	Manhole			2539	The spill appeared at a sewer manhole in the street in front of the reporting address. It then traveled to the gutter pan to the East and  North to a Drain inlet, where it entered the conveyance system. It was trapped several main segments downstream to the North.	Y	The spill entered a drain inlet at the very top of this drainage conveyance system. The system is several miles long and has large main segments in it. This helped stop the spill from making it to the sump station that would of pumped it into the waterway.	2539	0			2539	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		The spill left a manhole in the street in front of this address, it then traveled 80 feet to the North in the gutter pan where it entered the conveyance system through a drain inlet. Once in the conveyance system it traveled North 15 main segments downstream where we collected the spill from a 48  main and returned it to the sewer system.	Y	38.4932	-121.4986	38.49328	-121.49804	38.49873	-121.50389			12/30/2024 08:57	We used the water meter readings for all of the addresses above the plugged main. There was water in the drainage system and we knew by the witness statements not all of what was going to be removed to capture the spill was actually the spill. We used the the total water to each address in-between the  spill start and end time.  	We had two witnesses that helped with the start time, both lived nearby the spill appearance point. One resident stated that they had left around 1730 to go out for the evening and saw the spill when they returned and again in the morning and reported it to us then. A second resident stated that his daughter had to go to work and noticed water under her car sometime before 1800, he investigated to make sure the vehicle was okay and saw the spill then. This gave us a start time in between 1730 and 1800. WE used the time our responder unplugged the main for the spill end time.	Fats, Oil and Grease (FOG); Other (specify below); Pipe Structural Problem/Failure - Installation	The main segment that plugged has a section of main that does has a belly, and in this are grease collects. This area is where the main plugged, the cause is both grease and pipe structural failure.	Gravity Mainline		Vitrified Clay		70	The spill had no affect on the environment or the service to the residents. There wasn't rain in the forecast, this enabled us to shut down the sump station and sandbag the contaminated water in a manhole.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		The responder saw that the spill had already made it the drain inlet when they arrived on site,  so they made the decision to shut down the sump station that the spill was traveling to and call their supervisor. Drainage crews were called out to assist with cleanup of the conveyance system as well. A base test using ammonia strips was taken of the Drainage system upstream of the spill and another at the spill entrance point. These results were used to compare to results at each manhole downstream of the spill until the results were at the base reading. Once the end point was found the 48inch main was sandbagged and the spill was collected and returned to the sewer system.	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		This main will continue on the same maintenance schedule as it was late being cleaned this is what caused the spill.	N/A	12/31/2024 12:00	The CCTV found that there is a belly in this main that collects grease from the residents in the neighborhood. We also found that the main scheduled maintenance was late and it had not been cleaned on the proper cycle.	N	N/A	01/13/2025 10:08										N												N/A	
5F	5SSO11068	Active	Tuolumne CS	Tuolumne City SD	898432	1.2	Certified	Ben Kikugawa	CPO/LRO	03-JAN-25	14-JAN-25	14-JAN-25	Category 1 Spill	Funeral Home Alley	01/03/2025 07:42	01/03/2025 08:49	01/02/2025 16:00				Sewage was flowing out of an end of segment cleanout box in the alleyway. Sewage was slightly flowing into a neighboring property storm drain. The property was surrounded by a fence with a locked gate. Remnants of sewer was observed flowing from a cleanout box inside the property to the storm drain as well.	37.96111	-120.23681	Gravity Mainline; Lateral Clean Out (Private)			278	Spillage traveled approximately 75 feet over paved and unpaved surfaces from the spill appearance point to a storm drain on private property. 	Y	The drain system was behind a locked gate on private property. 	0	78	Discharge point unknown.	0	0	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Unpaved Surface		The spill destination was in a storm drain drop inlet with an unknown discharge location.	Y	37.96096	-120.23705							01/03/2025 09:47	Spilll estimations was calculated using the number of connections upstream from the blockage, the time the spill was reported, peak sewer system flows, observed discharge rate, observed saturated soils, and observed spillage returned to sewer system. Amount that entered the storm drain inlet was not observed due to being behind a locked fence/gate and had to be assumed. 	Spilll estimations was calculated using the number of connections upstream from the blockage, the time the spill was reported, peak sewer system flows, observed discharge rate, and observed saturated soils. Amount that entered the storm drain inlet was not observed due to being behind a locked fence/gate and had to be assumed. 	Debris from Lateral; Debris-General; Inappropriate Discharge to Collection System		Gravity Mainline		Polyvinyl Chloride (PVC)		31	Spillage pooled around end-of-segment cleanout sturating the surrounding non-paved surface. The SSO overflowed over the unpaved alley and onto a paved driveway to the south-west. Spillage continued to flow under a fence into a communication company's equipment yard where it entered a storm drain with an unknown discharge location. 	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Clean up included raking up minor sewer debris at the point of appearance and disinfecting saturated soils with ESAN 205. 	Other (specify below); Plan Rehabilitation or Replacement of Sewer	It is known the lateral connecting to the end of the sewer mainline has a flat lateral. This is due to the shallow depth of the sewer mainline. A recent sewer renovation project included deepening a manhole to the north of the alley. The mainline where the failure occurred has a flow direction to the south. The District will include in its next fiscal budget to reroute the sewer mainline flow to the north to put the mainline deeper.   Additionally, three toilets at three separate properties blew, or spilled sewer debris over bathroom floors. A cleaning company was hired to clean up one of the bathrooms belonging to an elderly customer. 	The property owners advised the District that they had a plumber out a week prior to clear their private lateral. The lateral is known to be defective due to a lack of adequate slope, meaning general sewer debris settles out in the lateral causing a blockage. The District believes the lumber pushed the lateral blockage into the sewer mainline. Being at the end of the mainline with a corresponding minimum flow, the debris did not convey through the collection system and caused the mainline blockage. 	The mainline will be proposed to be rerouted in the next fiscal budget, beginning 1 July 2025. Following the approval of those funds, the District will reroute the sewer mainline to a deeper manhole to the north.	01/03/2025 16:30	The investigation included interviewing the customer who called in the SSO and who had a plumber out prior. Their flat lateral is well documented and has been a know issue for many years. Failure in this lateral is not uncommon; however, it has never caused an issue in the mainline until now. Operators who were performing the blockage clearing did not observe typical mainline failure objects such as grease or roots. All blockage debris observed was general sewer debris. 	N			Turnback Creek	Other (specify below); Stream/Creek	It is unlikely any amount of the spill reached, or will reach receiving waters. The storm drain system in this section of town is old. It is likely that the small amount of water that did enter the drain system will exfiltrate out of the drain system given the dry conditions leading up to and still experiencing in the geographic area. 	Turnback Creek is a seasonally active waterway tributary to the Tuolumne River. 	No amount of the spill made it to the waterway as of this writing. It will require enough precipitation to push the spillage into the drain system out to receiving waters. The receiving water ecosystem is comprised of frogs, turtles, and crawfish.  Little to no impact is anticipated to occur to aquatic life. 	Other (specify below)	There was no public access impact to the waterway. 	There was no public access impact to the waterway. 	0	N	N												
4	4SSO11423	Active	Long Beach Water Dept. CS (SSO program)	Long Beach City, Water Dept	898436	1.1	Certified	Jennifer Rojas	Senior Director 		15-JAN-25	15-JAN-25	Monthly Category 3 Spill	4392 Elm Ave. Long Beach CA.	12/15/2024 11:29	12/15/2024 12:02	12/15/2024 11:25				The spill originated at the Long Beach City sewer manhole. H28-SMH-020.	33.83791	-118.18887	Manhole		N/A	351	The spill originated at the city sewer manhole H28-SMH-020. From there, it traveled 750ft down the street curb and gutter. The quick response of the cleanup crew promptly contained the spill.	N	N/A	0				351	Street/Curb and Gutter (2 3)		A manhole in the city sewer system overflowed, releasing wastewater onto the street. The wastewater traveled approximately 750 feet along the curb and gutter. To mitigate further contamination, sandbags were strategically placed to contain and control the spill.	Y	33.84149	-118.18998							12/15/2024 12:11	The spill volume was calculated using the formula Length � Width � Depth, where the dimensions were 750 feet (Length) � 0.5 feet (Width) � 0.125 feet (Depth). The resulting volume in cubic feet was converted to gallons using a factor of 7.48, yielding  46.875 � 7.48 = 350.625, approximately 351 gallons.	Spoke to residents who reported seeing the city sewer manhole overflowing shortly before Long Beach Utilities was notified at 11:25 AM.	Debris-Rags		Gravity Mainline		Vitrified Clay		81	A sewer spill occurred, reaching the street curb and gutter. The impact on the community was minimal, and the spill was promptly cleaned up from the street.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		1. Spill Containment: At the city sewer manhole sewage overflowed from the system, resulting in approximately 351 gallons of sewage spill. Containment measures were implemented to prevent further spread, including deploying barriers to contain the spill within the affected area. 2. Cleanup Efforts: Ocean Blue Environmental began cleanup operations for the spill in the street. 351 gallons of sewage were cleaned up using a pressure washer and vacuum truck. 	Inspected Sewer Using CCTV to Determine Cause		The pipe segment has undergone thorough hydro-jetting. We will continue with our preventive maintenance program and ensure that our staff follows proper cleaning procedures.		12/15/2024 15:18	On 12/17/2024, a post-CCTV inspection was conducted to investigate the cause of the main line stoppage. The inspection revealed that the stoppage was caused by debris - rags. (some roots noted) In order to resolve the issue, a thorough hydro-jetting process was carried out on the pipe segment to remove it and ensure the normal flow of the wastewater.		No ongoing investigation.	12/17/2024 09:50														The Long Beach Health Department was notified.	We have a 2-year Prevented Sewer Maintenance Program to ensure the long-term health and functionality of our sewer system.	We will proceed with our preventive maintenance program for this pipe segment and ensure that the cleaning is completed according to the schedule.	There is no planned rehabilitation or replacement of this segment.	CCTV Inspections were conducted to identify the cause and location of the rags blockage. Once the cause and location were determined, appropriate measures were taken to ensure a thorough cleaning of the blockage.	None Planned.	No modifications have been made to the system or operating procedures. The pipe segment was inspected to determine the cause of the stoppage.	We will continue following our spill response procedures for containment and clean-up efforts.	No ongoing investigation.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	898455	1.1	Certified	Ameal McLaurin	Sewer Supervisor 2		06-JAN-25	06-JAN-25	Monthly Category 3 Spill	6224 Swainland Road, Oakland Ca	12/19/2024 10:15	12/19/2024 11:00	12/12/2024 10:15				Manhole on easement overflowing in the back of the property. 	37.84316	-122.21743	Manhole			157	Manhole on easement overflowing in the back of the property. The sewage was flowing into the rear of the property on unpaved surface.	N						0	Unpaved Surface		Manhole on easement overflowing in the back of the property. The sewage was flowing into the rear of the property on unpaved surface.	Y	37.84316	-122.21743							12/20/2024 17:30	Calculated volumes: Next to manhole: 4'L x 4'W x 1'D x 7.48-gal x.1875 = 22 gallons Unpaved walkway: 32'L x 6'W x .5'D x 7.48-gal x .1875 = 135 gallons Total spill: 22 + 135 = 157 gallons	Start time base based on eyewitness account. End of the spill was based on responding crew installing a bypass equipment to prevent any more overflows.	Debris from Construction	Mortar concrete in the mainline.	Gravity Mainline		Other (specify below)	PE	32	Manhole on easement overflowing in the back of the property. The sewage was flowing into the rear of the property on unpaved surface where it soaked into the soil.	N	Cleaned Up (specify below); Other (specify below); Property Owner Notified; Restored Flow	Resident was provided with a claim packet for restoration company to perform a cleanup.	Cleaned and washed the spill affected area in the rear of the property. A claim packet was provided to the resident to have a restoration company to perform a further cleanup.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Remove left mortar concrete from the mainline.	Mainline has been added to 6-month hydro high frequency maintenance program. W. O. #1583573.		12/20/2024 17:30	CCTV inspection W.O. #1581109 found mortar concrete to have been the cause of the blockage. 		N/A	12/20/2024 17:30														N/A	Mainline has been added to 6-month hydro high frequency maintenance program. W. O. #1583573.	Mainline has been added to 6-month hydro high frequency maintenance program. W. O. #1583573.	N/A	CCTV inspection W.O. #1581109 found mortar concrete to have been the cause of the blockage.	N/A	CCTV inspection W.O. #1581109 found mortar concrete to have been the cause of the blockage. Mainline has been added to 6-month hydro high frequency maintenance program. W. O. #1583573.	Mainline has been added to 6-month hydro high frequency maintenance program. W. O. #1583573.	N/A	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	898476	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		13-JAN-25	13-JAN-25	Category 2 Spill	3651 East Whittier Boulevard	01/06/2025 20:24	01/06/2025 20:53	01/06/2025 20:24	01/07/2025 00:13	25-0065		The initial crew arrived at 8:53P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Spill originated at  cleanout and structure of 3651 East Whittier and at the cleanout of 3647 East Whittier. (34.025131, -118.194434)	34.025207	-118.194199	Inside Building or Structure		Spill originated at  cleanout, bathroom and laundry room of 3651 East Whittier and at the cleanout of 3647 East Whittier.	1340	see attachment	N						1340	Building or Structure; Other (specify below)	Approximately 1,340 gallons of sewage flowed from the sewer as a result of the blockage. Of that amount, an estimated 884 gallons flowed out of the cleanout and structure at 3651 East Whittier Boulevard and 456 gallons flowed out of the cleanout at 3647 East Whittier Boulevard. The crews were able to establish containment and subsequently the entire back up amount was returned to the sewer system.	Latitude: 34.025207   Longitude: -118.194199	Y	34.025207	118.194199							01/06/2025 21:20	Diameter of pickhole or opening4inches Height of water out of pickhole/opening0.0625inches Flowrate per pickole/opening (gpm)14gpm # of pickholes/openings1 Total flowrate (gpm)14gpm Duration of spill (minutes)56minutes Total flow (gallons)810gallons  Diameter of pickhole or opening3inches Height of water out of pickhole/opening0.0625inches Flowrate per pickole/opening (gpm)8gpm # of pickholes/openings1 Total flowrate (gpm)8gpm Duration of spill (minutes)56minutes Total flow (gallons)456gallons  Length9feet Width7feet Depth0.5inches0.0417feet  2.63ft320gallons 	Spill flowrate and volume determined based on flowout pickhole or opening.  Volume of a spill contained in a rectangular area	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		111	Approximately 1,340 gallons of sewage flowed from the sewer as a result of the blockage. Of that amount, an estimated 884 gallons flowed out of the cleanout and structure at 3651 East Whittier Boulevard and 456 gallons flowed out of the cleanout at 3647 East Whittier Boulevard. The crews were able to establish containment and subsequently the entire back up amount was returned to the sewer system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		A CWCD crew arrived at the incident location and determined that the 8-inch main line sewer serving the referenced area was spilling due to a blockage, which appears to have been caused by a build-up of Fats, Oils and Grease (FOG). The crew proceeded to remove the blockage and the backup ceased at 9:20 PM. All necessary clean-up was then performed.  	Added Sewer to Preventive Maintenance Program; Plan Rehabilitation or Replacement of Sewer		As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	None.	01/06/2025 21:20	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor.  	N		01/06/2025 21:20										N													
5S	5SSO10891	Active	City Of Brentwood CS	Brentwood City	898490	1.3	Amended	Mark Huber	Wastewater Operations Manager		03-FEB-25	03-FEB-25	Monthly Category 3 Spill	738 Castle Ct.	01/03/2025 13:21	01/06/2025 10:00	12/22/2024 12:00				Upper lateral cleanout	37.93211	-121.69909	Lateral Clean Out (Private)			948	24  area around the upper lateral cleanout	N						0	Unpaved Surface		Unpaved landscaping around the upper lateral cleanout.		37.951	-121.698							01/06/2025 10:00	Through the interview process the resident explained the 12/22/2024 @12:30pm she noticed the spill and 12/22/2024 @12:00pm she noticed it was not spilling.  12/22/2024 @ 12:00pm earliest possible start time. The resident explained the water usage from the different sources over the duration of the spill. Calculations were made based on water usage per source. 	At time of the crew's arrival 1/6/2025 @ 10:00am.  The water was not flowing.  	Root Intrusion		Lower Lateral		Vitrified Clay		69	24  area around the upper lateral cleanout	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow		arrival 1/6/2025 @ 10:00am. Pictures taken. Jet cleaned from upper lateral cleanout to break plug. CCTVed from the upper lateral cleanout to find no lower lateral cleanout and root intrusion at the lower lateral main connection. Jet cleaned the lateral to remove the roots with a chain-flail cleaning head. CCTVed the lateral to confirm the roots were cleared. Cleaned the affected spill area removing residual solids with a shovel and bucket.   	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer; Post Spill CCTV		Add to the future CIP list to replace the mian pipe segment and lateral connections. 		01/06/2025 11:10	The cause of the spill was due to the root intrusion at the main connection. 		None	01/06/2025 11:10														None	None	None	CIP	CIP	Yes	None	None	None	
4	4SSO10384	Active	Duarte City CS (SSO program)	Duarte City	898492	1.2	Certified	Eric Liu	Civil Engineer	07-JAN-25	16-JAN-25	16-JAN-25	Category 1 Spill	2212-0065 (1003 Miltonwood Avenue, Duarte)	01/02/2025 20:30	01/02/2025 21:50	01/02/2025 20:15				CSMD Map Sheet No. 2212 MMS No. 9188313 Manhole No. 65 was overflowing.	34.14182	117.96533	Manhole			200	Upon arrival, the manhole was not overflowing but was near capacity, with signs of a pervious overflow. Out of an estimated total of 200 gallons, 100 gallons were recovered, and 100 gallons entered the storm drain at 1920 Chesson Street, Duarte, CA. 	Y	Upon arrival, the manhole was not overflowing but was near capacity, with signs of a pervious overflow. Out of an estimated total of 200 gallons, 100 gallons were recovered, and 100 gallons entered the storm drain at 1920 Chesson Street, Duarte, CA. 	0	100	Upon arrival, the manhole was not overflowing but was near capacity, with signs of a pervious overflow. Out of an estimated total of 200 gallons, 100 gallons were recovered, and 100 gallons entered the storm drain at 1920 Chesson Street, Duarte, CA, which leads to Chimes Channel, private drain, unknown drain, BI 9604 - Duarte, Line A, with the major watershed being the Los Angeles River. 	100	100	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Upon arrival, the manhole was not overflowing but was near capacity, with signs of a pervious overflow. Out of an estimated total of 200 gallons, 100 gallons were recovered, and 100 gallons entered the storm drain at 1920 Chesson Street, Duarte, CA, which leads to Chimes Channel, private drain, unknown drain, BI 9604 - Duarte, Line A, with the major watershed being the Los Angeles River.   	Y	34.1407	-117.96309							01/02/2025 21:20	CWEA SSCSC Manhole Gauge. 	The start time is obtained from the reporting party, and the end times is determined by when the crew clears the obstruction, and the overflow stops. 	Root Intrusion		Gravity Mainline		Vitrified Clay		70	Upon arrival, the manhole was not overflowing but was near capacity, with signs of a pervious overflow. Out of an estimated total of 200 gallons, 100 gallons were recovered, and 100 gallons entered the storm drain at 1920 Chesson Street, Duarte, CA, which leads to Chimes Channel, private drain, unknown drain, BI 9604 - Duarte, Line A, with the major watershed being the Los Angeles River. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow		Upon arrival, manhole 65 was not actively overflowing, but evidence of a prior overflow was observed. Rodder equipment was used to clear the mainline root blockage. A combo truck was set up at the storm drain to assist with cleanup. The curb and gutter were washed down with fresh water, and the water was vacuumed using the combo truck. All required agencies and the complainant were notified. 	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Televised the sewer and added it to a 90-day preventive maintenance Rodder program. 	Televised the sewer and added it to a 90-day preventive maintenance Rodder program. 	01/02/2025 23:10	Heavy roots	N			Los Angeles River	River		Upon arrival, the manhole was not overflowing but was near capacity, with signs of a pervious overflow. Out of an estimated total of 200 gallons, 100 gallons were recovered, and 100 gallons entered the storm drain at 1920 Chesson Street, Duarte, CA, which leads to Chimes Channel, private drain, unknown drain, BI 9604 - Duarte, Line A, with the major watershed being the Los Angeles River.  	No impact.	Other (specify below)	No impact.	N/A	0	N	N												
2	2SSO10217	Active	West Valley Sd CS	West Valley SD	898112	2.2	Certified	Kelvin Hatchett	Operations Supervisor	20-DEC-24	07-JAN-25	07-JAN-25	Category 1 Spill	Happy Acres/Shannon Rd MH# 9-024-82	12/18/2024 08:30	12/18/2024 09:00	12/17/2024 04:30	12/18/2024 10:05	24-7047		Latitude 37.22733   longitude -121.94703. Manhole overflow in intersection of Happy acres and Shannon rd	37.22733	-121.94703	Manhole			5812	Spill traveled from manhole across roadway to a storm inlet. Entering Short Creek approximately traveling 100 feet downstream. Photos attached. 	Y	Storm Catch basin inlet with a corrugated 10  pipe.	0	0	There was only one appearance point. See attached photos.	5812	4858	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		Spill appearance point was a manhole at the intersection of Happy Acres rd and Shannon rd. Spill travel down roadway into a catch basin and then into Short Creek  start coordinates lat:  37.22739  long: -121.94704  end coordinates Lat: 37.22790 long: -121.94787 .	Y	37.22739	-121.94704	37.2278	-121.94736	37.22774	-121.94761	37.2279	-121.94787	12/18/2024 09:10	Spill Volume based on number of single family home connections upstream of blockage (45) times 186 gallons/SFR times duration of spill (5812 gal). 	Passer by noticed water coming out of manhole on roadway around 6 pm It was assumed spill started 1 1/2 hours prior to passer by noticing spill. the Spill end time was noted by crew lead upon breaking the mainline stoppage.	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		55	Short creek impacted creek bed saturated.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Using Vacuum Combination unit crews vacuumed up spill in effected parts of creek. washed down roadway and also vacuumed as a precaution cleaned and vacuumed catch basin. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Frequency Changed from 24 month to 12 month 12/20/2024   Upstream mainlines CCTV to inspect for fog 12/23/2024  CCTV in 6 month to see grease accumulation 6/25/2025 	Frequency Changed from 24 month to 12 month12/20/2024   Upstream mainlines CCTV to inspect for fog 12/23/2024  CCTV in 6 month to see grease accumulation 6/25/2025 	12/20/2024 14:30	Follow up CCTV revealed root intrusion and grease blockage in mainline.	N			Short Creek	Stream/Creek		Small creek beside roadway	None	Other (specify below)	Impacted creek is not accessible by public.	West Valley sanitation district	0	N	N												
9	9SSO10710	Active	USMC Base, Camp Pendleton CS	US Marine Corps Base Camp Pendleton	898500	1.2	Certified	Robert Stephen Ramsey	Public Works Officer		30-JAN-25	30-JAN-25	Monthly Category 3 Spill	Deluz Family Housing SMH 01Y164	12/30/2024 07:15	12/30/2024 07:30	12/30/2024 07:15				Deluz Family Housing SMH 01Y164 Latitude: 33.326304 Longitude: -117.307949	33.326269	-117.307943	Manhole; Other (specify below)	The 50 gallon spill appeared on the SMH 01Y164 cover pickhole.  The spill ponded on the pavement up to curb , 110 ft from SMH 01Y164, before being vacuumed completely up.  See attachment photo.		50	The 50 gallon spill appeared on the SMH 01Y164 cover pickhole.  The spill ponded on the pavement up to curb , 110 ft from SMH 01Y164, before being vacuumed completely up.  See attachment photo.	Y	The SMH 01Y164 SSO briefly touched the Chosin Circle curb before being vacuumed recovered.  Photo of Chosin Circle shows the pavement and curb section after washdown of SSO.	1				50	Other (specify below); Paved Surface; Street/Curb and Gutter (2 3)	SMH 01Y164 Cover	The 50 gallon spill originated from the pick hole on the cover of  SMH 01Y164.  The spill ponded on the pavement up to curb , 110 ft from SMH 01Y164 before being vacuumed completely up.  See attachment photo.	Y	33.326269	-117.307943	33.326241	-117.307915	33.326195	-117.307942	33.326249	-117.307965	12/30/2024 07:45	Estimated 50 gallon spill volume based on Vactor truck volume collected, spill area, time of flow before vacuuming completed, and an experienced, trained visual  inspector.	(1) Spill Start Time based on Unity time Record of SSO Notice. (2) Spill End Time Based on Vactor Truck Operator Time for Vactor truck ceasing operation after clearing blockage and vacuuming SSO and its washdown water.	Debris-General; Fats, Oil and Grease (FOG)		Gravity Mainline	Gravity mainline debris/grease blockage	Vitrified Clay	Blockage in 8 inch VCP	19	Increase cleaning frequency downstream of SMH 1Y164 to a 6 month frequency.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	Cleared sewerline debris/grease blockage, vacuumed 50 gallon SSO Pond.	(1) Cleared sewerline debris/grease blockage, vacuumed 50 gallon SSO Pond. (2) Increased frequency of Jet Cleaning to 6 months.	Adjusted Schedule/Method of Preventive Maintenance	Increase cleaning frequency downstream of SMH 1Y164 to a 6 month frequency.	Increase cleaning frequency downstream of SMH 1Y164 to a 6 month frequency.		12/30/2024 07:45	Unexpected grease/debris sewerline blockage		Increase cleaning frequency downstream of SMH 1Y164 to a 6 month frequency.	07/01/2025 18:00														NA	Increase cleaning frequency downstream of SMH 1Y164 to a 6 month frequency.	Increase cleaning frequency downstream of SMH 1Y164 to a 6 month frequency.	NA	Inspected 12/30/2024	NA	12/30/2024 WRD Operator SSO Long Form 	(1) Cleared sewerline debris/grease blockage, washdown and vacuumed 50 gallon SSO. (2) Increase cleaning frequency downstream of SMH 1Y164 to a 6 month frequency.	Increase cleaning frequency downstream of SMH 1Y164 to a 6 month frequency.	
2	2SSO10172	Active	Ross Valley Sanitary District CS	Ross Valley SD	898503	1.2	Certified	Josh Hill	O&M Superintendent 		09-JAN-25	09-JAN-25	Monthly Category 3 Spill	305 Riviera Circle, Larkspur	12/14/2024 11:55	12/14/2024 11:59	12/14/2024 10:55				The origination of the spill was from a private CO @ 305 Riviera Circle. The front yard had a CO with a contra costa valve installed. The second appearance of the spill was just downstream approximately 30' at pump station 35 from node B134.040.	37.94079	-122.5223	Lateral Clean Out (Private); Manhole		n/a	589	The majority of the spill was contained in the front yard of 305 Riviera Circle. A portion of the spill may have seeped under the house. This spill was in conjunction with multiple outside factors including high tide and heavy rain. A small portion of the spill was observed from node B134.040 at the pump station just downstream of the property. The pump station could not keep up with the amount of flow from these events, thus spilling out of the nearest access points. 	N		0				200	Unpaved Surface		The spill destination was contained to the front yard approximately 48sqft and small area under the house approximately 30sqft @ 305 Riveria circle. The second spill destination was contained to a dirt area approximately 35sqft area surrounding node B134.040.										12/14/2024 12:00	Spill volume was determined by multiple methods including eye ball and calculating area of the effected landscape. 	The spill start time was determined by the homeowner witness statement. The witness statement also reflected high flow conditions that was evident captured in the pump station SCADA charts. The spill end time was determined by lower flow rates at the pump station and no spill was on longer present from the spill location points. 	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Pump Station - Mechanical		Vitrified Clay		57	The was no impact of the spill other than an inconvenience to the homeowner. 	Y	Cleaned Up (specify below)		The spill was contained in the immediate landscape where it exited the system. To help mitigate the amount of flow, a combination truck vacuumed out the wet well at the nearby pump station. It took approximately 7 loads (15,000 gallons) to be removed from the pump station before normal flow rates were achieved. Staff vacuumed up all standing liquid from the spill appearance points and removed as much organic material as feasible.  	Other (specify below)	This spill was 100% related to 2 unusual natural events, heavy rain in combination with an unusally high tide.	To help prevent this spill from replicating in this area, we planned to monitor and stage a pumper in the unlikely event that this set of circumstances happens again. 		12/14/2024 12:10	The spill was a result of a combination of natural events that were out of our control. Heavy rain with an unusually high tide (king tide) caused a unusual high flow rate in this part of the collection system.  		None	12/14/2024 12:10														N/A	Stage pumping equipment to help mitigate higher flow rates. 	N/A	None	N/A	N/A	N/A	None	None	
4	4SSO10431	Active	Santa Monica City CS	Santa Monica City	898510	1.3	Amended	Ralph Valencia	Water/Wastewater Administrator		08-JAN-25	08-JAN-25	Category 1 Spill	528 Hill Street	01/04/2025 15:00	01/04/2025 15:30	01/04/2025 15:00	01/04/2025 16:30	25-0056	08-JAN-25	528 Hill Street Santa Monica, CA	34.0038	-118.47846	Lateral Clean Out (Private)	Please see attachment 	N/A	480	Please see attachment 	N	Please see attachment 	480	0	Please see attachment 	480	480	Street/Curb and Gutter (2 3)		Please see attachment 	Y	34.0038	-118.47846							01/04/2025 16:30	Using SSCS Manhole Overflow Gauge	Please see attachment 	Root Intrusion		Gravity Mainline		Vitrified Clay		104	Please see attachment public right- a -way	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified		Hydrojet, vactor, CCTV, disinfect, follow up	Inspected Sewer Using CCTV to Determine Cause		Please see attachment 	Please see attachment 	01/04/2025 16:30	Root intrusion 	N			none 	Other (specify below)	did not enter a receiving body of water	N/A	N/A	Restricted Public Access; Temporary Restricted Use		City of Santa Monica 	0	Y	N												
4	4SSO10431	Active	Santa Monica City CS	Santa Monica City	898510	2.0	Work In Progress						Category 1 Spill	528 Hill Street	01/04/2025 15:00	01/04/2025 15:30	01/04/2025 15:00	01/04/2025 16:30	25-0056	08-JAN-25	528 Hill Street Santa Monica, CA	34.0038	-118.47846	Lateral Clean Out (Private)	Please see attachment 	N/A	480	Please see attachment 	N	Please see attachment 	480	0	Please see attachment 	480	480	Street/Curb and Gutter (2 3)		Please see attachment 	Y	34.0038	-118.47846							01/04/2025 16:30	Using SSCS Manhole Overflow Gauge	Please see attachment 	Root Intrusion		Gravity Mainline		Vitrified Clay		104	Please see attachment public right- a -way	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified		Hydrojet, vactor, CCTV, disinfect, follow up	Inspected Sewer Using CCTV to Determine Cause		Please see attachment 	Please see attachment 	01/04/2025 16:30	Root intrusion 	N			none 	Other (specify below)	did not enter a receiving body of water	N/A	N/A	Restricted Public Access; Temporary Restricted Use		City of Santa Monica 	0	Y	N												
5S	5SSO11363	Active	Dry Creek, Zone 173 CS	Placer Cnty Dept of Facility Services	898516	1.1	Certified	Robin Mahoney	Utility Program Manager		13-JAN-25	13-JAN-25	Monthly Category 3 Spill	Manhole KB11-100 	12/07/2024 08:08	12/07/2024 08:52	12/07/2024 08:08				Man hole KB11-100 had smelly liquid seeping out of it. 	38.73599	121.365	Manhole			924	When we first noticed it was only wet around the man hole on our way back from our walk it had crossed the walking trail. 	N						850	Drainage Conveyance System		The first set of Long-Lat is the spilling man hole. The second is the Storm drain inlet, third is storm outlet were most was captured  	Y	38.735999	121.365008	38.736162	121.364977	38.736209	121.365076			12/07/2024 10:45	7 gpm using the eyeball method times duration 	Eyewitness account of caller and account of first responder	Debris from Construction; Debris-General	3/4 crush and rocks from the new upstream subdivision 	Gravity Mainline; Manhole	KB11-100	Polyvinyl Chloride (PVC)		39	The gravel that caused the spill was located in KB11-102. We were able to Vacuum out and relieve the blockage  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		We responded with multiple vacuum trucks and were able to clear the blockage wash down and capture all of the spill 	Post Spill CCTV		N/A		12/07/2024 11:05	N/A		N/A	12/07/2024 11:05														N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	
2	2SSO10177	Active	San Carlos City CS	San Carlos City	898519	1.3	Certified	Seven J Machida	Public Works Director	08-JAN-25	17-JAN-25	17-JAN-25	Category 1 Spill	3031 Brittan	01/05/2025 22:44	01/05/2025 23:17	01/05/2025 22:10	01/06/2025 02:24	25-0054		Spill came from the cleanout in front of the property as well as the shower in the restroom of the house.	37.48598	-122.27685	Inside Building or Structure; Lower Lateral (Public)			13655	The spill ran down the street until it entered a storm DI which went into a flowing 40 storm pipe with heavy flow. The spill also ran down the hallways in the house and partially into the bedrooms.	Y	Storm drain system and Pulgas creek	0	0	Spill discharges into Pulgas creek	13622	33	Building or Structure; Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water		Spill came from the cleanout at the front of the property and the shower pan in the house (3031 Brittan) Once the spill entered the DI, it ran into a flowing 40 inch storm pipe that eventually travels to Pulgas creek	Y	37.48598	-122.27685	37.30061	-122.15092					01/05/2025 23:24	No SCADA, flow monitoring was used.	Service cleanout estimation worksheet was used for the cleanout. Recovered amount was area volume method and inside the house was eye ball method.	Root Intrusion		Gravity Mainline		Vitrified Clay		75	Spill impacted the residents house on the inside, the front of her property, the street curb and gutter and made it though the storm system that eventually flows to pulgas creek.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Crew attempted to slow the spill entering the DI by placing sandbags. Once the spill was stopped, the street curb and gutter was cleaned and vacuumed up. The crew was unable to collect from the storm drain system as the 40 inch line had heavy flow at the time of the spill. 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Post Spill CCTV	Jetted the line multiple times to remove heavy root. Used the mechanical rodder with spring blades to remove root. CCTV to confirm line was open.	This section of pipe will be recommended for a point repair on the next sewer rehab project. 	1/6 and 1/7 the line was cleaned multiple times using the jetter and mechanical rodder.	01/06/2025 02:00	After CCTV, a large root ball and heavy thicker root was found 40 feet upstream from manhole BQ/45	N			Pulgas Creek	Stream/Creek		Pulgas creek flows through the city before eventually flowing to the bay	N/A	Other (specify below)	None. The creek is not easily accessible. 	San Carlos/San Mateo County	0	N	N												
5F	5SSO11202	Active	City of Fresno CS	County of Fresno	898523	1.2	Certified	Arturo Alvarez	Wastewater Manager, Certified	08-JAN-25	19-JAN-25	19-JAN-25	Category 2 Spill	191 E. Escalon Ave.	01/04/2025 17:12	01/04/2025 17:31	01/04/2025 15:00	01/04/2025 20:03	25-0045		The spill originated from two MHs, 1456-12 and 1456-11.	36.82657	-119.78588	Manhole	n/a	n/a	4612	The spill area included street/curb & gutter; and entered the FMFCD system via drain inlet (DI) at E. Escalon Ave. and N. Clark St., flowing to infiltration Basin N.	Y	The spill entered the FMFCD system via one DI at E. Escalon Ave. and N. Clark St. This DI flows to infiltration Basin N (see Attachment).	0	0			1412	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Groundwater Infiltration Basin or Facility; Street/Curb and Gutter (2 3)	n/a	The spill event destinations include street/curb & gutter, 1 FMFCD DI, and the FMFCD mains that run from that DI to infiltration Basin N.	Y	36.82656	-119.78589	36.82646	-119.78578	36.827	-119.78359			01/04/2025 19:00	Spill volume estimates calculated using visually estimated GPM spilling from MH 1456-12; and area/volume measurements for the spill area around MH 1456-11.	Estimated spill start time provided by Reporting Party. Spill end time is the time the mainline blockage was broken.	Fats, Oil and Grease (FOG)	n/a	Gravity Mainline	n/a	Vitrified Clay	n/a	48	There is no known lasting impact resulting from this spill event.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	n/a	Primary Responder promptly protected the FMFCD DI using dirt and sandbags to stop spill from entering the FMFCD system; and called FMFCD to notify of the spill. Two FMFCD staff members visited site and instructed Primary Responder not to clean beyond the DI so as to not add more water to their system.  FMFCD informed Enrollee that pumps at Basin N were not running; the estimated spill volume assumed to have entered infiltration Basin N is thus contained therein. Per FMFCD, based on telemetry at Basin N, the percolation rate of the basin averages 3.5 acre feet per day (1,140,480 gallons per day); and the basin had recently been pumped down prior to this spill event, lowering the water level. Once the mainline blockage was broken, the affected spill areas around the two MHs - including the FMFCD DI - were cleaned and sanitized. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV	see 10.c. Schedule of major milestones	see 10.c. Schedule of major milestones	01-07-25: Sampling at Basin N done by City of Fresno Wastewater Laboratory. (see attachment) 01-07-25: SmartCover water level monitoring equipment installed at MH 1456-12 to alert of changes in water level. 01-09-25: CCTV mainline inspection of 1456-10-1456-08 (affected mainline). Inspection revealed heavy grease deposits. Referred to Preventive Maintenance for review/adjustment of cleaning schedule/methods.  01-21-25: Distribute FOG door hangers to neighborhood.	01/04/2025 21:02	Primary Responder arrived on site at 17:31 and found 1456-11 had signs of an overflow but wasn't actively overflowing. Called Secondary to bring a vac truck. Found1456-12 actively overflowing and it was going into a storm drain (DI) at N. Clark St. & E. Escalon Ave. (east side of the street). I placed sand bags & dirt to prevent anymore sewage from entering the FMFCD DI at 17:40. Called FMCFD to inform them of the spill since it entered their system and was going to a ponding basin. David & Andrew Remus (Environmental) from FMFCD came out and stated we only needed to clean the DI that was affected, because they didn't want us to put more water in their system by flushing their mains; also stated that the pumps were off in the basin. Secondary arrived at 18:53 and we broke the stoppage at 19:00. After the flow was restored, we cleaned the spill areas and the DI that was affected. Mainline video inspection found significant grease.	N	n/a											N												n/a	
5F	5SSO11202	Historical	City of Fresno CS	County of Fresno	898523	1.2	Certified	Arturo Alvarez	Wastewater Manager, Certified	08-JAN-25	19-JAN-25	19-JAN-25	Category 2 Spill	191 E. Escalon Ave.	01/04/2025 17:12	01/04/2025 17:31	01/04/2025 15:00	01/04/2025 20:03	25-0045		The spill originated from two MHs, 1456-12 and 1456-11.	36.82657	-119.78588	Manhole	n/a	n/a	4612	The spill area included street/curb & gutter; and entered the FMFCD system via drain inlet (DI) at E. Escalon Ave. and N. Clark St., flowing to infiltration Basin N.	Y	The spill entered the FMFCD system via one DI at E. Escalon Ave. and N. Clark St. This DI flows to infiltration Basin N (see Attachment).	0	0			1412	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Groundwater Infiltration Basin or Facility; Street/Curb and Gutter (2 3)	n/a	The spill event destinations include street/curb & gutter, 1 FMFCD DI, and the FMFCD mains that run from that DI to infiltration Basin N.	Y	36.82656	-119.78589	36.82646	-119.78578	36.827	-119.78359			01/04/2025 19:00	Spill volume estimates calculated using visually estimated GPM spilling from MH 1456-12; and area/volume measurements for the spill area around MH 1456-11.	Estimated spill start time provided by Reporting Party. Spill end time is the time the mainline blockage was broken.	Fats, Oil and Grease (FOG)	n/a	Gravity Mainline	n/a	Vitrified Clay	n/a	48	There is no known lasting impact resulting from this spill event.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	n/a	Primary Responder promptly protected the FMFCD DI using dirt and sandbags to stop spill from entering the FMFCD system; and called FMFCD to notify of the spill. Two FMFCD staff members visited site and instructed Primary Responder not to clean beyond the DI so as to not add more water to their system.  FMFCD informed Enrollee that pumps at Basin N were not running; the estimated spill volume assumed to have entered infiltration Basin N is thus contained therein. Per FMFCD, based on telemetry at Basin N, the percolation rate of the basin averages 3.5 acre feet per day (1,140,480 gallons per day); and the basin had recently been pumped down prior to this spill event, lowering the water level. Once the mainline blockage was broken, the affected spill areas around the two MHs - including the FMFCD DI - were cleaned and sanitized. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV	see 10.c. Schedule of major milestones	see 10.c. Schedule of major milestones	01-07-25: Sampling at Basin N done by City of Fresno Wastewater Laboratory. (see attachment) 01-07-25: SmartCover water level monitoring equipment installed at MH 1456-12 to alert of changes in water level. 01-09-25: CCTV mainline inspection of 1456-10-1456-08 (affected mainline). Inspection revealed heavy grease deposits. Referred to Preventive Maintenance for review/adjustment of cleaning schedule/methods.  01-21-25: Distribute FOG door hangers to neighborhood.	01/04/2025 21:02	Primary Responder arrived on site at 17:31 and found 1456-11 had signs of an overflow but wasn't actively overflowing. Called Secondary to bring a vac truck. Found1456-12 actively overflowing and it was going into a storm drain (DI) at N. Clark St. & E. Escalon Ave. (east side of the street). I placed sand bags & dirt to prevent anymore sewage from entering the FMFCD DI at 17:40. Called FMCFD to inform them of the spill since it entered their system and was going to a ponding basin. David & Andrew Remus (Environmental) from FMFCD came out and stated we only needed to clean the DI that was affected, because they didn't want us to put more water in their system by flushing their mains; also stated that the pumps were off in the basin. Secondary arrived at 18:53 and we broke the stoppage at 19:00. After the flow was restored, we cleaned the spill areas and the DI that was affected. Mainline video inspection found significant grease.	N	n/a											N												n/a	
5S	5SSO11001	Active	Modesto CS	Modesto City	898535	1.1	Certified	Robert Englent	Wastewater Collection System Superintendent		31-JAN-25	31-JAN-25	Monthly Category 3 Spill	1501 Oakdale Rd.	01/06/2025 10:04	01/06/2025 10:10	01/06/2025 09:40				The spill originated from the TMH in front of 1501 Oakdale Rd. The TMH is located in the bike lane in front of the driveway to 1501 Oakdale Rd. See Attachment	37.66543	-120.9577	Manhole			700	Sewer spilled from TMHSS008272 entered the gutter on the West side of Oakdale Rd. and travelled North for 194 ft. to the catch basin and also travelled South for 100 ft.   See Attachments	Y	Sewer spilled from TMHSS008272 entered the gutter on the West side of Oakdale Rd. and travelled North for 194 ft. to catch basin 005326 and also travelled South for 100 ft.  The sewer that entered the CB travelled through the cross pipe and 6 downstream positive storm lines all the way to SDMH022984 at Nystrom Ave. Sandbags were placed in MH022984 to contain the spill. See Attachments	568				700	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		Sewer spilled from TMHSS008272 entered the gutter on the West side of Oakdale Rd. and travelled North for 194 ft. to catch basin 005326 and also travelled South for 100 ft.  The sewer that entered the CB travelled through the cross pipe and 6 downstream positive storm lines all the way to SDMH022984 at Nystrom Ave. Sandbags were placed in MH022984 to contain the spill.  See Attachment	Y	37.66595	-120.95772	37.66202	-120.95743					01/06/2025 09:54	Orange County Sewer Spill Estimation Guide was used.  See Attachment for ECS Spill Volume Calculation Form. 	The end time was when a Modesto Police Officer noticed the MH overflowing as he drove by the area. By the time he went around the block it had stopped. The start time was when the private lift station was turned on by a plumber fixing the lift station pump.	Other (specify below)	Heavy corrosion of the DIP caused the circumference of the pipe to be reduced.	Gravity Mainline		Ductile Iron		46	The spill affected 294 ft. of gutter and 6 positive storm line segments. See Attachment	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Sandbags were placed at each end of the spill. The plumber working on the private lift station was asked to not turn on the pump until the line was cleared. The affected line segment was cleaned with a vac truck and then cleaned again with a chain flail to enlarge the pipe diameter that was restricted due to corrosion. The gutter was washed and vacuumed and the catch basin, cross pipe and 6 storm lines were cleaned and vacuumed.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer; Post Spill CCTV		The PM schedule was increased to every 6 months to prevent corrosion build-up. A 3 month CCTV PM was created to further evaluate the line before cleaning. The line has been put on a CIP list for a full line replacement.  The affected line segment was cleaned with a vac truck and then cleaned again with a chain flail to enlarge the pipe diameter that was restricted due to corrosion. See Attachment		01/06/2025 17:40	Our CCTV crew televised the line on the morning of the spill and had to abandon the survey due to heavy corrosion in the DIP.  The line was cleaned multiple times including with a chain flail to enlarge the inside diameter of the pipe. Our crew returned the next day to re-televise the line and found that diameter of the pipe had been improved significantly. The private lift station was off line over the weekend due to a malfunction, so when the plumber introduced a large volume of water into the shallow TMH, the line charged due to the restricted pipe size, causing the spill.		N/A	01/07/2025 09:35														N/A	PM increased to every 6 months and adding a 3 month CCTV PM.  Line added to the CIP list. 	PM increased from 3 years to every 6 months	Line segment SS003494 has been put on a CIP list for a full line replacement.  	The line was televised before and after cleaning. 	The line has been put on a CIP list for a full line replacement.  	Created a 3 month CCTV PM. Increased cleaning PM from 3 years to 6 months for further input from the CCTV report.  See Attachment	N/A	N/A	
2	2SSO10142	Active	Town Of Hillsborough CS	Town Of Hillsborough	898542	1.0	Work In Progress						Monthly Category 3 Spill	105 Rowan Tree Ln	01/07/2025 11:51	01/07/2025 13:22	01/07/2025 11:36				See Attachment	37.56256	-122.37783	Manhole			228	See Attachment	N						228	Unpaved Surface		Dirt area on easement trail 										01/07/2025 15:00	Spill calculation data sheet 	Spill calculation data sheet 	Debris from Lateral; Debris-General; Debris-wipes/Non-disposables		Gravity Mainline; Manhole		Vitrified Clay		35		N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System; Returned Portion of Spill to Sanitary Sewer System		Crew attempted to contain the spill  Crew jetted main line to restorer flow  Crew disinfected and removed contaminated soil from site	Adjusted Schedule/Method of Preventive Maintenance		See Attachment		01/07/2025 16:00	See Attachment		NA	01/07/2025 16:00														NA	NA	NA	NA	NA	NA	NA	NA	NA	
4	4SSO11423	Active	Long Beach Water Dept. CS (SSO program)	Long Beach City, Water Dept	898543	1.1	Certified	Jennifer Rojas	Senior Director 		21-JAN-25	21-JAN-25	Monthly Category 3 Spill	115 W. 4th Street  Long Beach CA	12/18/2024 16:07	12/18/2024 16:51	12/18/2024 08:30				The Spill originated at a private 4  clean-out in the underground garage for the building at 115 W. 4th Street.	33.77187	-118.19285	Inside Building or Structure			292	The spill originated from a private 4-inch clean-out located in the underground garage of the building at 115 W. 4th Street. It impacted an area of 15006 square feet.	N	N/A	0				292	Building or Structure		A sewer spill occurred, resulting in the release of wastewater into an underground garage. The spill extended approximately 15006 square feet. To prevent further contamination, containment measures were implemented to contain the spill and prevent it from spreading to surrounding areas.	Y	33.77187	-118.19285							12/18/2024 17:35	The spill volume was estimated by calculating the affected area and applying a conversion factor to determine the total gallons released. The dimensions of the spill were measured as 122 feet in length, 123 feet in width, and a depth of 0.0026 feet. Using the formula Length X Width X Depth, the volume in cubic feet was calculated to be 38.87 cubic feet. To convert this to gallons, we used the conversion factor of 7.48 gallons per cubic foot, resulting in an estimated spill volume of 291.5 gallons, which rounds to approximately 292 gallons.	Upon discovering a sewer spill at 115 W. 4th Street, the crew spoke to the residents who contacted Long Beach Utilities, reporting a sewer issue, documenting the time of the incident.	Debris from Construction		Gravity Mainline		Vitrified Clay		121	We experienced a localized sewer spill in the underground garage. Our crew promptly addressed the issue, effectively containing and recovering the affected area.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	The damage pipe was repaired on 1/9/2025.	1. Spill Containment: At a private 4  clean-out, sewage overflowed from the system, resulting in approximately 292 gallons affecting the underground parking garage. Containment measures were implemented to prevent further spread, including deploying barriers to contain the spill within the affected area. 2. Cleanup Efforts: Ocean Blue Environmental began cleanup operations for the spill in the underground garage and the floor drain located inside the garage. The 292 gallons of sewage were cleaned up using a pressure washer and vacuum truck. 	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect		The pipe segment has undergone thorough hydro-jetting. A CCTV inspection located damages on the pipe segment. Long Beach Utilities Contractors completed repairs on the pipe segment. We will continue with our preventive maintenance program.		12/19/2024 03:30	On 12/19/2024, a post CCTV inspection was conducted to investigate the cause of the main line stoppage. The inspection revealed that the stoppage was caused by construction debris from Developers Building a New Apartment Complex. The CCTV crew also located damages in the pipe segment. In order to resolve the issue, Long  Beach Utilities Contractors completed the repairs and a thorough hydro-jetting process was carried out on the pipe segment to remove the accumulated debris and ensure smooth flow of the wastewater.		Lateral and main inspections were concluded on 1/8/2025.	12/19/2024 11:38														The Long Beach Health Department was notified.	We have a 2-year Preventive Sewer Maintenance Program to ensure the long-term health and functionality of our sewer systems. This program involves regular inspections, proactive cleaning, and timely repairs to prevent blockages, backups, and other sewer-related issues.	We will proceed with our preventive maintenance program for this pipe segment and ensure that the cleaning is completed according to the schedule.	The damaged pipe segment was repaired and it has undergone thorough hydro-jetting to ensure normal sewage flow in the pipe.	CCTV inspections were conducted to identify the cause and precise location of the blockage. Once the cause and location were determined, appropriate measures were taken to ensure the repairs on the damaged pipe and thorough cleaning of the blockage.	The section of the lateral and the mainline were thoroughly inspected and repaired along the entire length of the mainline.	No modifications have been made to the system or operating procedures. The pipe was inspected to determine the source of the construction debris. 	We will continue following our spill response procedures on containment and clean-up efforts.	Lateral and main inspections were concluded on 1/8/2025.	
8	8SSO10590	Active	Newport Beach City CS	Newport Beach City	898568	1.6	Certified	Michael Lynch	Wastewater Supervisor	10-JAN-25	14-JAN-25	14-JAN-25	Category 1 Spill	1445 Superior Ave.	01/09/2025 08:45	01/09/2025 09:00	01/09/2025 08:30				Caller found private clean out overflowing into a nearby storm drain. Upon arrival at 9:00 am we set up berm to stop flow in the swale of road. We ran the jetter into the lateral toward the clean out and blockage was cleared at 9:04 am. Blockage was sapproximately 30 feet from the main. We vacuumed the remaining sewage and hosed down the area. At the storm drain catch basin we vacuumed and hosed out any remaining sewage. CCTV crew ran a See snake and found some small sags in the lateral. No offsets or other blockages were found. 	33.62714	117.9327	Lateral Clean Out (Private)			236	The spill appears at the clean out and traveled 9 feet to a swale in the road, then traveled 110 feet to the storm drain catch basin.	Y	The drainage system starts at 1445 Superior Ave. and discharges in the Newport Harbor at 1335 Coast Hwy W.	66	170	The storm drain discharges into the Newport Harbor under the docks at 1335 Coast Hwy W.	0	66	Drainage Conveyance System; Unpaved Surface		From 1445 Superior Ave storm drain catch basin to storm drain conveyance system.	N									01/09/2025 08:30	Spill estimate was calculated by finding the area from spill source to where we could contain the spill. Then calculated the flow rate.	Flow rate was found measuring the area of spill which was a 4'x9' run down to a swale which runs 110'. 66 gallons were recovered from the road. Then the estimate of flow rate that entered the storm drain was calculated. The V shape of the swale was calculated to be running .02 ft/sec. At 5 gallons per minute. This gives us an estimate that the amount of water running for 34 minutes was 170 gallons. Total amount of spill was calculated to be 236 gallons.  	Debris from Lateral; Debris-Rags; Debris-wipes/Non-disposables		Lower Lateral		Polyvinyl Chloride (PVC)		40	Spill entered the storm drain catch basin and entered the drianage conveyance system. We checked storm drain downstream man holes and found no evidence that it reached the harbor.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		A berm was set up to contain the spill along with a vacuum truck located at entry to storm drain. We used another truck to hose down the area and vacuumed the spill.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		We are in the process to have our CCTV contractor use a lateral launch to investigate this lateral.	8:30 am caller reports seeing the clean out overflowing. At 8:45 we received the call notifying us of the spill. 9:00 arrived and contained spill. 9:04 blockage was cleared. 10:00 spill and area is completely cleaned up.	01/09/2025 10:00	CCTV See Snake found slight sags in the line. Toilet paper and non disposable wipes were found when clearing the blockage. 	Y	We are trying to eliminate the danger of this being a reoccurring issue.	01/31/2025 09:54	Newport Harbor	Other (specify below)	Newport Harbor	The receiving waters is the Newport Harbor.	No impact observed.	Other (specify below)	No impact on public per Orange County Department of Public Health, Water Quality division.	OCDPHWQ	0	Y	N											We are trying to eliminate the danger of this being a reoccurring issue.	
1	1SSO10016	Active	Rohnert Park City CS	Rohnert Park City	898572	1.1	Certified	Vanessa Garrett	Public Works Director		16-JAN-25	16-JAN-25	Monthly Category 3 Spill	698 Bernice Ave	12/29/2024 14:44	12/29/2024 15:30	12/29/2024 14:15				Due to heavy rains we experienced a increased volume of  I&I. This caused the solids to float. When the manhole levels receded the solids caused a partial backup that resulted in approximately 1 gpm exiting the manhole located in front of 698 Bernice Ave.	38.33738	-122.69752	Manhole	N/A	N/A	135	The overflow exited the manhole at a very slow rate to the gutter pan. The gutter pan was also influenced by a  very small water leak .	Y	Entered storm inlet in front of 698 Bernice Ave. It is approximately .68 miles to the Laguna De Santa Rosa where this drainage system conveys too. 	60				60	Paved Surface		Spill event destination was  drain inlet in front of 7454 Burton Ave. It's a 24' storm drain form 698 Bernice to 7454 Burton Ave. 	Y	38.33708	-122.69807							12/29/2024 14:00	The methodology for calculating the volume of spill exiting the manhole was the photo and bucket method to determine the flow rate. The street and surrounding areas were saturated form the precious heavy rainfall. 	Witness called Public Safety dispatch at 14:44 PM. Staff arrived on scene at 14:50 PM. The witness did not leave any contact information. When staff arrived on scene and investigated it was determined to have started at 14:15 PM. This was determined by inspecting the DI at 698 Bernice and 7454 Burton Ave 	Fats, Oil and Grease (FOG); Rainfall Exceeded Design, I and I (Separate Collection System Only)	In this area during rain events the sanitary sewer ssytem has been observed to fill the pipes. This caused the floating of solids and when the levels subside creates a blockage.  	Manhole		Other (specify below)	Asbestos Concrete Pipe	63	Minimal impact to the street. Overflow entered the DI in front of 698 Bernice but didn't make it to 7454 Burton Ave. 	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Returned All Spill to Sanitary Sewer System		Immediately upon arrival staff created a barriers with waddles and soil to prevent sewage from flowing into the storm drain. Within an hour flow was restored and the overflow was stopped. City staff cleaned the area of the spill  and flushed the storm drain with 10x amount of clean water. This was vacuumed up an returned to the Sanitary Sewer System. 	Adjusted Schedule/Method of Preventive Maintenance		Staff has conducted an inspection and documented any deficiencies of all manhole sin the affected area. We have implemented routine checks in this area until these deficiencies  are addressed. It was estimated 60 gallons reached the storm drain. Staff fully recovered that volume. The remaining 75 gallons was contained and captured via the waddles and soil and vacuumed up. 		12/31/2024 14:00	Due to heavy rains the  B Section  of Rohnert Park experienced elevated levels in the collection system which in turn caused a blockage. Staff did a thorough investigation of the entire  B  section of Rohnert Park and concluded the elevated levels caused solid to float and create blockage after receding. 		Continue to monitor manholes for I&I. Looking into strategically deploying SmartCover monitors to monitor manhole levels. 	12/31/2024 14:00														N/A	Added area where blockage was to our quarterly cleaning schedule. We just completed a 6 million dollar lining project in the area that flow monitors have shown up 50% I&I reduction. We will create a project ot repair manholes that I&I was documented. 	Added to quarterly cleaning. Inspect area during storms. 	THe  B Section  of Rohnert Park has been identified in our sewer system master plan as having I&I issues. We have another project that will be planned and executed in B section according to our CIP plan. 	The entire B section area was inspected. Manholes that were experiencing I&I were documented and will be addressed. 	We just completed lining 9000 LF of sewer pipe in the area. We also lined 216 lower laterals and installed cleanouts. The next phase in B section will be going into design. 	Staff inspected manholes in the affected area. Reports attached. This information was recorded in our CMSS program. 	The affected area was isolated with waddles and soil to prevent sewage form entering the drainage conveyance system. 	Continue to monitor manholes for I&I. Looking into strategically deploying SmartCover monitors to monitor manhole levels. 	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	898578	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		04-FEB-25	04-FEB-25	Monthly Category 3 Spill	14611 West Sutton Street	01/12/2025 08:47	01/12/2025 09:20	01/12/2025 08:47				On Sunday, January 12, 2025, at 8:47 AM., the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 14611 West Sutton Street (TG 561-J5). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 9:22 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.    It was estimated that approximately 101 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently returned the entire amount to the sanitary sewer system.     The Los Angeles County Department of Public Health was notified and determined that the overflow did not necessitate any beach closures. The sewer location where the backup occurred will be televised to determine the exact cause and to determine the ne	34.147792	-118.452576	Manhole			101	Spill Photo.	N						101	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	34.147792  -118. 452576	Y	34.147792	-118.452576							01/12/2025 09:22	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.	Spill flowrate and volume determination based on flowout pickhole or opening Diameter of pickhole or opening0.75inches Height of water out of pickhole/opening2inches Flowrate per pickole/opening (gpm)3gpm # of pickholes/openings1 Total flowrate (gpm)3gpm Duration of spill (minutes)35minutes Total flow (gallons)101gallons 	Root Intrusion		Gravity Mainline		Concrete		95	It was estimated that approximately 101 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently returned the entire amount to the sanitary sewer system. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		On Sunday, January 12, 2025, at 8:47 AM., the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 14611 West Sutton Street (TG 561-J5). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 9:22 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.		01/12/2025 09:22	A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The Crew removed the blockage, and the backup ceased at 9:22 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.		None At This Time.	01/12/2025 09:02														None At This Time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	None At This Time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed in the Chemical Root Control Program and a quarterly cleaning schedule.	On Sunday, January 12, 2025, at 8:47 AM, the Clean Water Conveyance Division (CWCD) received a report of a sewer discharge at 14611 West Sutton Street (TG 561-J5). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The Crew removed the blockage, and the backup ceased at 9:22 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.	None At This Time.	
2	2SSO10105	Active	Central Contra Costa Sd CS	Central Contra Costa Sanitary District	898584	1.2	Certified	Paul Seitz	CSO Division Manager	13-JAN-25	23-JAN-25	23-JAN-25	Category 2 Spill	4 Dale Ct, Orinda	01/12/2025 13:17	01/12/2025 13:43	01/12/2025 13:07	01/12/2025 17:00	25-0167		73C3-M5	37.85182	-122.15196	Manhole			1580	Spill travled from manhole down street and into a drainage swale	N						1580	Drainage Conveyance System; Other (specify below); Paved Surface; Unpaved Surface	Drainage swale	Spill traveled from manhole, down the street, into a DI and then flowed into a drainage swale	Y	37.85182	-122.15196	37.84924	-122.1525					01/12/2025 14:36	By using our internal flow rate chart, we estimated the spill rate to be 20 gpm X 79 minutes = 1580 gallons	By interviewing the property owner to get the best estimated start time and by using our internal flow rate chart to best estimate the spill rate.	Debris-General		Manhole		Vitrified Clay		75	No negative impact was seen from spill	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	Mitigated effects of spill by washing down area of spill, damning up drainage swale and pump all off spill back into our system	See 9a.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		We inspected the mainline by using CCTV and added the downstream MH to a MH inspection schedule.	N/A	01/12/2025 20:30	Crew that arrived during the inital responce found a large chunk of concrete in the downstream MH blocking flow.	N												N													
2	2SSO10179	Active	San Jose City CS	San Jose City	898603	1.1	Certified	BINH TRAN	DIVISION MANAGER		07-MAR-25	07-MAR-25	Monthly Category 3 Spill	Flanders Drive and Piedmont Rd San Jose CA	12/08/2024 08:58	12/08/2024 09:15	12/08/2024 07:58				The sanitary manholes were located on the Flanders drive which is a gated maintainance road containing sanitary easement and also within Piedmont middle school.	37.39338	-121.84671	Manhole		two manholes	644	The spill extended along Flanders drive which is a gated maintainance road containing sanitary easement.  And the second spill area was around the second manhole next to the baseball field.  This manhole only had a minor spill.	N						629	Paved Surface; Unpaved Surface		The spill was contained within Flanders drive and along a small stretch of baseball field.	Y	37.39338	-121.84671	37.39312	-121.84746	37.39223	-121.8466	37.39214	-121.84664	12/08/2024 09:57	The spill volume was calculated using crews measurements.  For the spill lost to the ground a saturation percentage was taken into consideration.	Due to the extent of the spill as it didn't travel far the start time was safely estimated to be an hour prior to the reporting party noticing it.  The spill end time was when the plug was removed and the SSO stopped.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		65	No impact to the CSJ waterways as the spill was did not reach storm drain system 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Crew used two combo trucks, one flushed water upstream and other vacuumed the water at the other end of Flanders drive.  Pictures of the spill extent were added to the Attachments Tab	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Distribute grease flyers to nearby residents. ESD commercial grease investigation of conducted		12/08/2024 12:45	While the Responding Crew cleared the blockage in the plugged sanitary mainline, the Crew documented their findings. A pipe basket was used to collect the grease that was removed while clearing the blockage within the mainline.		NA	12/18/2024 15:30														NA	Reducing the cleaning cycles for the plug segment and the upstream adn down stream segments to three months.	Reducing the cleaning cycles for the plug segment and the upstream adn down stream segments to three months.	NA	CCTV plug segment	NA	NA	NA	NA	
9	9SSO10678	Active	Moulton Niguel Water District CS	Moulton Niguel Water District	898608	1.2	Certified	Sara Boyer	Regulatory Compliance Manager	13-JAN-25	27-JAN-25	27-JAN-25	Category 1 Spill	Regional Park Force Main	01/10/2025 09:45	01/13/2025 10:00	01/10/2025 09:45	01/10/2025 11:57	25-0133	24-FEB-25	Spill was identified at the west end of the Laguna Niguel Regional Park, near Alicia Parkway. 	33.55135	-117.71628	Force Main; Other (specify below)	Spill surfaced at an unpaved portion of the park. 		589500	The discharge entered Sulphur Creek at Alicia Parkway, which merges with Aliso Creek. Aliso Creek continues to the Pacific Ocean. 	Y	A nearby storm drain transported discharge to Aliso Creek. 	100000	0	Discharge into surface water occurred at Sulphur Creek within Laguna Niguel Regional Park at Alicia Parkway. 	464700	29250	Drainage Conveyance System that discharges to surface water; Surface Water; Unpaved Surface		The spill entered Sulphur Creek via storm drain conveyance and sheet flow. Sulphur Creek joins Aliso Creek and continues to the Pacific Ocean. 	Y	33.55118	-117.71665	33.54399	-117.72759	33.51037	-117.75285			01/10/2025 13:10	Volume estimates were made using SCADA data and pump run times until the line was able to be isolated. Recovery was estimated using volumes and number of vac-con trucks, volume and number of pumper trucks, and run time of bypass pumps. 	Start time was determined by the time of initial report to the District. Stop time was determined by the time that the pipe was isolated and there was no additional flow exiting the pipe. 	Other (specify below)	Pipe structural failure caused a hole in the pipe. Did not have an immediately visible cause for the failure. 	Force Main		Fiberglass		46	Spill surfaced through an unpaved area in the Regional Park. The spill entered a storm drain conveyance near Alicia Parkway, discharging into Sulphur Creek. Sulphur Creek merges with Aliso Creek downstream, which continues on to the ocean. Aliso Beach was closed in the days following the spill. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Spill was contained as much as possible using vac-con trucks at the location of the break. Recovered spill was returned to sewer. The force main was isolated and flow was stopped. A pump was placed in Aliso Creek downstream to intercept some flow back into the sewer. Approximately one million gallons was pumped out of Aliso Creek downstream and into the sewer. Additionally, pumper trucks were stationed at the Aliso Creek outlet to the ocean to pump water from behind the berm. Approximately 130,000 gallons was pumped from behind the berm at the outlet. This water was returned to sewer as well. Surfaces, including storm drain conveyance, were cleaned and/or repaired to their original condition. 	Plan Rehabilitation or Replacement of Sewer		The force main was already scheduled for replacement in 2025. Pre-construction activities are to begin in February 2025, and construction activities will begin in August 2025. The District is assessing the feasibility of commencing construction earlier. 	Pre-construction begins in February 2025 Construction begins in August 2025 Project completion in 2027	01/19/2025 10:49	The force main was excavated and a several inch wide crack was identified in the fiberglass pipe. The crack was repaired using fiberglass repair techniques and left to cure. The repaired pipe was tested and verified to be stable before the excavation was backfilled. 	N			Sulphur Creek, Aliso Creek, Pacific Ocean	Ocean; Stream/Creek		Aliso Creek is a perennial drainage that runs mostly north-south. Sulphur Creek is a perennial tributary to Aliso Creek. Aliso Creek flows to the Pacific Ocean with the outlet at Aliso Beach. Both creeks were observed to be flowing at the time of the spill. No trash or visible sewage was identified during daily inspections. 	A biologist surveyed the creek on January 11, 2025 and did not observe any impacts to aquatic life. Staff inspected portions of the creek daily during sampling activities and no impacts to aquatic life were observed during these activities. 	Public Closure		Orange County Health Care Agency	5	N	Y	Samples were collected from upstream in Sulphur Creek, upstream in Aliso Creek, three locations downstream in Aliso Creek, the mouth of Aliso Creek, and in ocean water at Aliso Beach. Detailed sample locations and sample results will be provided in the technical report. 	Electroconductivity, residual chlorine, pH, total dissolved solids, total suspended solids, ammonia as N, Nitrate, Nitrite, total Nitrogen, total phosphorus, oil and grease, total coliform, e. coli, and enterococcus. 										
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	898614	1.1	Certified	David Leamer	Assistant Superintendent		23-JAN-25	23-JAN-25	Monthly Category 3 Spill	353302	12/17/2024 11:20	12/17/2024 11:40	12/17/2024 08:00				See Attached Spill map with Photos.	38.60347	-121.35653	Lateral Clean Out (Public)			173	See Attached Spill Map with Photos	Y	See Attached Spill map with Photos.	167				170	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		See attached Spill Map with Photos.	Y	38.60345	-121.35653	38.60603	-121.35691					12/17/2024 12:07	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Root Intrusion		Gravity Mainline		Vitrified Clay		60	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		SacSewer crews broke the stoppage in the mainline and cleaned the affected part of the land using hydro-vacuum truck. The affected part of the drainage conveyance system was cleaned by introducing dechlorinated water into the drain inlet at 2120 Park Ridge Court. The rinsed water was recovered from the SDMH at 4621 Nottingham Cir, using portable pumps. The spill that entered the drainage conveyance system was fully recovered and returned to the sewer system.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer; Post Spill CCTV		SacSewer inspected mainline with CCTV on 12/18/24. Based on findings, SacSewer increased preventative cleaning frequency to 24 months from 48 months.		12/18/2024 10:10	SacSewer crews broke the stoppage in the mainline and cleaned the affected part of the land using hydro-vacuum truck. The affected part of the drainage conveyance system was cleaned by introducing dechlorinated water into the drain inlet at 2120 Park Ridge Court. The rinsed water was recovered from the SDMH at 4621 Nottingham Cir, using portable pumps. The spill that entered the drainage conveyance system was fully recovered and returned to the sewer system.		None	12/18/2024 10:10														N/A	SacSewer increased preventive cleaning frequency from 48 months to 24 months.	SacSewer increased preventive cleaning frequency from 48 months to 24 months.	N/A	SacSewer inspected mainline with CCTV on 12/18/24.	N/A	SacSewer increased preventive maintenance frequency on 12/19/24.	N/A	None	
3	3SSO10311	Active	Ridgemark Estates CS	Sunnyslope County Water District	898615	1.2	Certified	Drew Lander	General Manager		27-JAN-25	27-JAN-25	Monthly Category 3 Spill	Oak Canyon Court	01/01/2025 20:00	01/01/2025 20:15	01/01/2025 20:00				Spill originated in the road between addresses 688 and 691 Oak Canyon Court in pervious excavation patch above sewer force main from lift station. The majority of the spill appeared in front of 691 Oak Canyon Court.	36.82055	-121.37739	Force Main			875	Spill appeared in previously excavated patch near the center of the road. Spill ran down gutter to storm drain inlet where it flowed to a retention basin and was contained there.	Y	Spill entered storm drain inlet at 691 and 688 Oak Canyon Court. Those inlets connect to 2 parallel 48  SD pipes which outlet into a retention basin behind 682 and 688 Oak Canyon Court where the spill was contained and percolated into the soil.	0				0	Drainage Conveyance System; Groundwater Infiltration Basin or Facility; Street/Curb and Gutter (2 3); Unpaved Surface		Spill surfaced in pervious excavation in road on Oak Canyon Court. It ran down the gutter to a storm drain inlet 25' from the spill. That storm drain runs through two 48  pipes to a retention basin about 200' away 	Y	36.82054	-121.37739	36.82056	-121.37732	36.82063	-121.37793			01/01/2025 21:15	Staff who responded to the spill estimated a flow rate of 25gpm when the pump was on and 5gpm when the pump was off. From notification of spill to end of spill was 75 minutes. SCADA shows 11 pump cycles with an average run time of 1 minute and 45 seconds a cycle (25 gpm x 20 minutes = 500 gallons) + (5 gpm x 75 minutes = 375 gallons) = 875 gallons total. The majority of the spill went to the storm drain retention basin with some of the spill being absorbed by wattles placed around the storm drain inlet. Once in the storm drain inlet it drained to a retention basins where it could not be recovered as it quickly percolated into the soil.	The spill is assumed to have begun at the time of the notification call. This was verified by looking at the lift station pump amperage from SCADA. The spill end time is at the point that two vactor trucks and a pumper truck arrived to contain the spill and pump down lift station to turn pumps off.	Pipe Structural Problem/Failure - Installation		Force Main		Polyvinyl Chloride (PVC)		29	None. Soil area around cracked pipe was removed and replaced with new fill material. All surfaces that had contact with the spill were cleaned and disinfected with 12.5% sodium hypochlorite bleach. No exposure to the public as staff quickly closed the affected area. Spill percolated into the soil in the retention basin and the soil was disinfected with bleach. Sewer service for all homes was maintained. There was no flooding or discharge of wastewater onto private property.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow		Wattles were placed at storm drain inlets. Local Vacuum trucks were called to contain spill in roadway until large pumper truck was able to pump down lift station to make repair on force main. All surfaces were sprayed with 12.5% sodium hypochlorite bleach and cleaned. Soil in retention basin was disinfected with bleach. Contaminated area was closed until full clean-up and disinfection was completed.	Repaired Facilities or Replaced Defect		The 2' section of cracked pipe in the force main was cut out and new pipe was installed using two couplings. In the near future the entire force main will be abandoned when a new lift station and force main become operational, expected to be within a year.		01/02/2025 02:30	The 4  PVC force main was cracked near the top of the pipe. It is believed there may have been a sharp rock applying pressure to this spot of the pipe during previous backfill and compaction. Discussions with staff was made to prevent any sharp or large objects from being used during back fill and compaction.		No ongoing investigation since the cause, solution and repair of the spill were all determined and corrected at the site during the emergency response. 	01/02/2025 10:00														No enforcement actions were taken as the spill was not the result of an illicit discharge.	The cracked section of pipe was replaced with new PVC pipe and couplings. No operational or maintenance modifications were made as the spill was not caused by operational or maintenance deficiencies.	No changes were made to the schedule or method of preventative maintenance as the spill was caused by a failure in the pipe material rather than due to lack of preventative maintenance.	The entire force main and lift station serving it will be replaced by a new lift station and force main in a different location farther downstream. The new force main is 6  welded HDPE without any bells. It is expected that the new lift station and force main will be operational within a year.	A 2' section of the force main pipe was removed and replaced with new PVC pipe and couplings. This entire force main will be replaced by a new 6  force main from the new lift station.	The replacement of the lift station and force main has been in the Capital Improvement Plan for several years and is expected to be completed within a year.	Replacement lift station has been constructed and is waiting delivery of the control panels which have been subject to manufacturing delays. As soon as these panels are delivered, we have contracted labor to install them and begin the transition from this old force main to a brand-new force main.  We have taken these steps to ensure no more spills occur at this location. Expected completion is May 2025.	Sunnyslope managers reviewed the Overflow Emergency Response Plan (OERP). Additional septic pumper truck companies were added to the list in the plan. Names and titles were updated. 	No ongoing investigation since the cause, solution and repair of the spill were all determined and corrected at the site during the emergency response. 	
3	3SSO20018	Active	Ridgemark Estates CS	Sunnyslope County Water District	898615	1.2	Certified	Drew Lander	General Manager		27-JAN-25	27-JAN-25	Monthly Category 3 Spill	Oak Canyon Court	01/01/2025 20:00	01/01/2025 20:15	01/01/2025 20:00				Spill originated in the road between addresses 688 and 691 Oak Canyon Court in pervious excavation patch above sewer force main from lift station. The majority of the spill appeared in front of 691 Oak Canyon Court.	36.82055	-121.37739	Force Main			875	Spill appeared in previously excavated patch near the center of the road. Spill ran down gutter to storm drain inlet where it flowed to a retention basin and was contained there.	Y	Spill entered storm drain inlet at 691 and 688 Oak Canyon Court. Those inlets connect to 2 parallel 48  SD pipes which outlet into a retention basin behind 682 and 688 Oak Canyon Court where the spill was contained and percolated into the soil.	0				0	Drainage Conveyance System; Groundwater Infiltration Basin or Facility; Street/Curb and Gutter (2 3); Unpaved Surface		Spill surfaced in pervious excavation in road on Oak Canyon Court. It ran down the gutter to a storm drain inlet 25' from the spill. That storm drain runs through two 48  pipes to a retention basin about 200' away 	Y	36.82054	-121.37739	36.82056	-121.37732	36.82063	-121.37793			01/01/2025 21:15	Staff who responded to the spill estimated a flow rate of 25gpm when the pump was on and 5gpm when the pump was off. From notification of spill to end of spill was 75 minutes. SCADA shows 11 pump cycles with an average run time of 1 minute and 45 seconds a cycle (25 gpm x 20 minutes = 500 gallons) + (5 gpm x 75 minutes = 375 gallons) = 875 gallons total. The majority of the spill went to the storm drain retention basin with some of the spill being absorbed by wattles placed around the storm drain inlet. Once in the storm drain inlet it drained to a retention basins where it could not be recovered as it quickly percolated into the soil.	The spill is assumed to have begun at the time of the notification call. This was verified by looking at the lift station pump amperage from SCADA. The spill end time is at the point that two vactor trucks and a pumper truck arrived to contain the spill and pump down lift station to turn pumps off.	Pipe Structural Problem/Failure - Installation		Force Main		Polyvinyl Chloride (PVC)		29	None. Soil area around cracked pipe was removed and replaced with new fill material. All surfaces that had contact with the spill were cleaned and disinfected with 12.5% sodium hypochlorite bleach. No exposure to the public as staff quickly closed the affected area. Spill percolated into the soil in the retention basin and the soil was disinfected with bleach. Sewer service for all homes was maintained. There was no flooding or discharge of wastewater onto private property.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow		Wattles were placed at storm drain inlets. Local Vacuum trucks were called to contain spill in roadway until large pumper truck was able to pump down lift station to make repair on force main. All surfaces were sprayed with 12.5% sodium hypochlorite bleach and cleaned. Soil in retention basin was disinfected with bleach. Contaminated area was closed until full clean-up and disinfection was completed.	Repaired Facilities or Replaced Defect		The 2' section of cracked pipe in the force main was cut out and new pipe was installed using two couplings. In the near future the entire force main will be abandoned when a new lift station and force main become operational, expected to be within a year.		01/02/2025 02:30	The 4  PVC force main was cracked near the top of the pipe. It is believed there may have been a sharp rock applying pressure to this spot of the pipe during previous backfill and compaction. Discussions with staff was made to prevent any sharp or large objects from being used during back fill and compaction.		No ongoing investigation since the cause, solution and repair of the spill were all determined and corrected at the site during the emergency response. 	01/02/2025 10:00														No enforcement actions were taken as the spill was not the result of an illicit discharge.	The cracked section of pipe was replaced with new PVC pipe and couplings. No operational or maintenance modifications were made as the spill was not caused by operational or maintenance deficiencies.	No changes were made to the schedule or method of preventative maintenance as the spill was caused by a failure in the pipe material rather than due to lack of preventative maintenance.	The entire force main and lift station serving it will be replaced by a new lift station and force main in a different location farther downstream. The new force main is 6  welded HDPE without any bells. It is expected that the new lift station and force main will be operational within a year.	A 2' section of the force main pipe was removed and replaced with new PVC pipe and couplings. This entire force main will be replaced by a new 6  force main from the new lift station.	The replacement of the lift station and force main has been in the Capital Improvement Plan for several years and is expected to be completed within a year.	Replacement lift station has been constructed and is waiting delivery of the control panels which have been subject to manufacturing delays. As soon as these panels are delivered, we have contracted labor to install them and begin the transition from this old force main to a brand-new force main.  We have taken these steps to ensure no more spills occur at this location. Expected completion is May 2025.	Sunnyslope managers reviewed the Overflow Emergency Response Plan (OERP). Additional septic pumper truck companies were added to the list in the plan. Names and titles were updated. 	No ongoing investigation since the cause, solution and repair of the spill were all determined and corrected at the site during the emergency response. 	
7	7SSO10532	Active	Niland CS	Niland SD	898616	1.7	Certified	John Gay	Public Works Director	14-JAN-25	21-JAN-25	21-JAN-25	Category 2 Spill	Niland CSD - Manhole #35 in Sewer Collection System Map	01/04/2025 15:00	01/04/2025 15:39	01/04/2025 14:45	01/04/2025 16:22	25-0043		See Attachment	33.23962	-115.51891	Gravity Mainline; Manhole			3501	See Attachment same as Item 7 	N						2250	Unpaved Surface		See ATTACHMENT 1 The Description of the Contents of the ATTACHMENT 1 are as indicated on Item 7 of the DRAFT Spill Report	Y	33.23962	-115.51891							01/05/2025 03:00	The Spill Volume was calculated by estimating the Spill Area of 4,601 SF based on the  Poligon  Area derived from the Measuring Tool of the Google EARTH application, multiplied by an estimated averaged spill depth of 0.10 Feet:  VOL = 4,601 SF x 0.10 FT = 468 CF x 7.48 Gallons/CF = 3,501 Gallons   According to ANCON MARINE Services (a Haz-Mat company that handles, hauls and disposes hazardous materials, including wastewater sewer spills) the Spill Volume accumulated and vacuumed before the blockage in the sewer main line was removed was measured by the vacuum pump as being 2,250 Gallons 	PERC-WATER Corporation (PWC), provides the  M&O  of the Niland CSD Wastewater Treatment Plant (WWTP) for the Imperial County Department of Public Works (ICDPW), also provides the services as the First Respondent to Sanitary Sewer Spills, by keeping track of all the time or the Spill events once they are reached by the LRO of the ICDPW.   PERC-WATER called, coordinated, took photos and kept time records of the arrivals to the site of two (2) companies.  1. ANCON MARINE (AM) provided: removing and disposing of the sewer spill liquids vacuumed & disposal, the spill impacted soils vacuumed/removal & disposal, and the application of sodium hypochlorite (12.5% strength) on top of the soils surface area that contained the spill.  2. ROVE ENGINEERING (RE) provided: removing the blockage on the sewer main line with a Pressured Water Jet. The blockage that caused the spill, consisted of paper,  wipes  towels, rags, diapers, other.  A volume equivalent to about a 25 gallons trash can container.  	Debris-Rags; Debris-wipes/Non-disposables		Gravity Mainline		Vitrified Clay		60	The spill impact was on a dirt area estimated of 4,601 SF, along and adjacent east to the east shoulder of State Route 111.  The said dirt area was cleaned, hauled, and disinfected by Ancon Marine Services	N	Cleaned Up (specify below)		See ATTACHMENT 2	Plan Rehabilitation or Replacement of Sewer		The ICDPW is taking the following immediate, preventive and corrective actions:  1. A Sewer Emergency Response Plan (SERP) is currently under preparation. The SERP includes the implementation of a Water Gravity Flow Flush (G-Flow) Operation to the Niland Sewer Collection at the earliest convenience provided funding availability.  2. Preparation of a Sanitary Sewer Management Plan (SSMP) pursuant to the New 2022-0103 DWQ. The SSMP consists of various ELEMENTS including the SERP mentioned above.  3. The Development and Implementation of a GIS SYSTEM to anticipate and prevent spills, including tracking and recording spill locations.	1. SERP Completion on or about 03-21-25  2. SSMP Completion on or about 05-16-25  3. GIS SYSTEM Completion a year from its approval by the ICDPW and its adoption the State/Regional Water Boards on or about 07-31-25	01/05/2025 03:00	The blockage that caused the spill, consisted of paper,  wipes  towels, rags, diapers, other.  The removed blockage consisted of an estimated volume equivalent to about a 25 gallons trash can container. 	N												N													
7	7SSO20054	Active	Niland CS	Niland SD	898616	1.7	Certified	John Gay	Public Works Director	14-JAN-25	21-JAN-25	21-JAN-25	Category 2 Spill	Niland CSD - Manhole #35 in Sewer Collection System Map	01/04/2025 15:00	01/04/2025 15:39	01/04/2025 14:45	01/04/2025 16:22	25-0043		See Attachment	33.23962	-115.51891	Gravity Mainline; Manhole			3501	See Attachment same as Item 7 	N						2250	Unpaved Surface		See ATTACHMENT 1 The Description of the Contents of the ATTACHMENT 1 are as indicated on Item 7 of the DRAFT Spill Report	Y	33.23962	-115.51891							01/05/2025 03:00	The Spill Volume was calculated by estimating the Spill Area of 4,601 SF based on the  Poligon  Area derived from the Measuring Tool of the Google EARTH application, multiplied by an estimated averaged spill depth of 0.10 Feet:  VOL = 4,601 SF x 0.10 FT = 468 CF x 7.48 Gallons/CF = 3,501 Gallons   According to ANCON MARINE Services (a Haz-Mat company that handles, hauls and disposes hazardous materials, including wastewater sewer spills) the Spill Volume accumulated and vacuumed before the blockage in the sewer main line was removed was measured by the vacuum pump as being 2,250 Gallons 	PERC-WATER Corporation (PWC), provides the  M&O  of the Niland CSD Wastewater Treatment Plant (WWTP) for the Imperial County Department of Public Works (ICDPW), also provides the services as the First Respondent to Sanitary Sewer Spills, by keeping track of all the time or the Spill events once they are reached by the LRO of the ICDPW.   PERC-WATER called, coordinated, took photos and kept time records of the arrivals to the site of two (2) companies.  1. ANCON MARINE (AM) provided: removing and disposing of the sewer spill liquids vacuumed & disposal, the spill impacted soils vacuumed/removal & disposal, and the application of sodium hypochlorite (12.5% strength) on top of the soils surface area that contained the spill.  2. ROVE ENGINEERING (RE) provided: removing the blockage on the sewer main line with a Pressured Water Jet. The blockage that caused the spill, consisted of paper,  wipes  towels, rags, diapers, other.  A volume equivalent to about a 25 gallons trash can container.  	Debris-Rags; Debris-wipes/Non-disposables		Gravity Mainline		Vitrified Clay		60	The spill impact was on a dirt area estimated of 4,601 SF, along and adjacent east to the east shoulder of State Route 111.  The said dirt area was cleaned, hauled, and disinfected by Ancon Marine Services	N	Cleaned Up (specify below)		See ATTACHMENT 2	Plan Rehabilitation or Replacement of Sewer		The ICDPW is taking the following immediate, preventive and corrective actions:  1. A Sewer Emergency Response Plan (SERP) is currently under preparation. The SERP includes the implementation of a Water Gravity Flow Flush (G-Flow) Operation to the Niland Sewer Collection at the earliest convenience provided funding availability.  2. Preparation of a Sanitary Sewer Management Plan (SSMP) pursuant to the New 2022-0103 DWQ. The SSMP consists of various ELEMENTS including the SERP mentioned above.  3. The Development and Implementation of a GIS SYSTEM to anticipate and prevent spills, including tracking and recording spill locations.	1. SERP Completion on or about 03-21-25  2. SSMP Completion on or about 05-16-25  3. GIS SYSTEM Completion a year from its approval by the ICDPW and its adoption the State/Regional Water Boards on or about 07-31-25	01/05/2025 03:00	The blockage that caused the spill, consisted of paper,  wipes  towels, rags, diapers, other.  The removed blockage consisted of an estimated volume equivalent to about a 25 gallons trash can container. 	N												N													
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	898617	1.1	Certified	Ameal McLaurin	Sewer Supervisor 2		15-JAN-25	15-JAN-25	Monthly Category 3 Spill	63 Somerset Road, Oakland Ca	12/24/2024 12:20	12/24/2024 12:39	12/24/2024 12:10				Manhole on an easement overflowing on the hillside.	37.82129	-122.21414	Manhole			469	Manhole on an easement overflowing on the hillside, the sewage was soaking into the soil.	N						0	Unpaved Surface		Manhole on an easement overflowing on the hillside, the sewage was soaking into the soil.										12/24/2024 12:52	1  pick hole x 1.5  height = 2.17 GPM Ring around manhole cover: 1  height = 9 GPM 2.17 GPM + 9 GPM = 11.17 GPM 11.17 GPM x 42 minutes = 469 total spill	Start time was based on eyewitness account. The end time was based on responding sewer crew restoring the flow.	Debris-General		Gravity Mainline		Vitrified Clay		125	Manhole on an easement overflowing on the hillside, the sewage was soaking into the soil.	Y	Property Owner Notified; Restored Flow		Staff raked the contaminated soil and removed the spill spoils.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Mainline has been added to a 3-month hydro high frequency program. W. O. # 1583573.		01/08/2025 10:16	CCTV inspection found general debris blockage to had been the cause of the blockage. 		N/A	01/08/2025 10:16														N/A	Mainline has been added to a 3-month hydro high frequency program. W. O. # 1583573.	Mainline has been added to a 3-month hydro high frequency program. W. O. # 1583573.	N/A	CCTV inspection found general debris blockage to had been the cause of the blockage. W.O #1581780.	N/A	CCTV inspection found general debris blockage to had been the cause of the blockage. W.O #1581780. Mainline has been added to a 3-month hydro high frequency program. W. O. # 1583573.	Mainline has been added to a 3-month hydro high frequency program. W. O. # 1583573.	N/A	
5S	5SSO11045	Active	Sacramento Regional CS	Sacramento Area Sewer District (merged)	898624	1.2	Certified	Clarence Lunde	Director of EchoWater Operations	14-JAN-25	23-JAN-25	23-JAN-25	Category 2 Spill	354311	01/10/2025 12:30	01/10/2025 12:30	11/08/2024 08:00				See Attached Spill map with Photos.	38.5001	-121.5614	Force Main			19157	See Attached Spill Map with Photos	N						2463	Unpaved Surface		See Attached Spill Map with Photos	Y	38.5001	-121.5614							01/10/2025 12:53	See attachment for spill volume estimation	See attachment for spill volume estimation	Other (specify below)	Pipe Structural Problem / Failure - Hole in Pipe near a joint.	Force Main		Other (specify below)	Welded Steel Pipe	18	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Returned Portion of Spill to Sanitary Sewer System	The City of West Sacramento, Yolo County Environmental Health Department	See Attached Description of Spill Event	Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect		A SacSewer contractor temporarily repaired the damage to the force main on January 14, 2025. SacSewer is targeting a permanent force main repair early February 2025.	A SacSewer contractor temporarily repaired the damage to the force main on January 14, 2025. SacSewer is targeting a permanent force main repair early February 2025.	01/21/2025 13:45	See Attached Description of Spill Event	N												N													
4	4SSO10429	Active	Santa Clarita City CS	City of Santa Clarita 	898626	1.2	Certified	May Hong	Civil Engineer	14-JAN-25	06-FEB-25	06-FEB-25	Category 1 Spill	1255-0116 (24379 Mira Vista Street, Santa Clarita, CA)	01/10/2025 10:21	01/10/2025 10:50	01/09/2025 08:45	01/10/2025 11:30	25-0131		CSMD Map Sheet No. 1255 MMS 9194520 Manhole No. 116 showed signs of overflow; however, it was not overflowing upon arrival.	34.44598	-118.56717	Manhole			1800	Sewage discharged from Manhole No. 116 into the storm drain.	Y	Sewage discharged from Manhole No. 116 into the storm drain near address 24379 Mira Vista Street.	0	1800	Sewage discharged from Manhole No. 116 into the storm drain near address 24379 Mira Vista Street, which likely flow into the Santa Clara River. The Santa Clara River flows westward through Los Angeles and Ventura counties before emptying into the Pacific Ocean near Oxnard. 	1800	0	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Sewage discharged from Manhole No. 116 into the storm drain near address 24379 Mira Vista Street, which likely flow into the Santa Clara River. The Santa Clara River flows westward through Los Angeles and Ventura counties before emptying into the Pacific Ocean near Oxnard. 	Y	34.44579	118.56735							01/09/2025 10:45	CWEA SSCSC Manhole Gauge. Visual or Eyeball Method. Information provided by the constituent and time of notification.	The start time is obtained from the reporting party, and the end time is determined by when the crew clears the obstruction, and the overflow stops. 	Debris-General; Other (specify below)	Calcium blockage.	Gravity Mainline		Vitrified Clay		22	Sewage discharged from Manhole No. 116 into the storm drain near address 24379 Mira Vista Street, which likely flow into the Santa Clara River. The Santa Clara River flows westward through Los Angeles and Ventura counties before emptying into the Pacific Ocean near Oxnard. 	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow		Upon arrival, Manhole No. 116 was not overflowing but showed signs of a previous overflow. The crew hydro-cleaned the mainline to clear the calcium blockage, flushing it multiple times. No solids escaped the system. The street and storm drain were cleaned with fresh water. The constituent and all required agencies were notified. All mainlines were left flowing normally. According to the constituent, the spillage was intermittent, which contributed to our spill estimation. 	Added Sewer to Preventive Maintenance Program		Added sewer to Hydro preventive maintenance program. 	30 - Day Hydro Periodic 	01/10/2025 15:11	Calcium blockage.	N			Santa Clara River 	River		Sewage discharged from Manhole No. 116 into the storm drain near address 24379 Mira Vista Street, which likely flow into the Santa Clara River. The Santa Clara River flows westward through Los Angeles and Ventura counties before emptying into the Pacific Ocean near Oxnard. 	No impact. 	Other (specify below)	No impact.	N/A	0	N	N												
5S	5SSO11001	Active	Modesto CS	Modesto City	898627	1.1	Certified	Robert Englent	Wastewater Collection System Superintendent		31-JAN-25	31-JAN-25	Monthly Category 3 Spill	1010 Amherst Ave	01/02/2025 19:42	01/02/2025 20:00	12/28/2024 18:00				Sewer spilled from TMHSS004511 in the street in front of 1010 Amherst Ave. See Attachment	37.65731	-121.00867	Manhole			684	Sewer spilled from TMHSS004511 and travelled to the East side of Amherst Ave. and then travelled North in the gutter to storm catch basin SDCB005922 and then rock well SD0108993 See Attachment	Y	The sewer entered SDCB005922. See Attachments	80				80	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Sewer made it into the gutter in front of 1010 Amherst Ave. and travelled North for 215 ft. to SDCB005922 and rock well SD018993 See Attachment	Y	37.65728	-121.00867	37.65744	-121.00866					01/02/2025 20:36	Only two houses affected by the blockage, the Spill Estimation for a single home was used to determine the gallons discharged for each home.  See Attachment	ECS spoke to the resident at 1010 Amherst Ave. The resident said the spill started on 12-28-2024 at 18:00. The end time was when the assist crew broke the stoppage at 20:36 on 01-02-2025. See Attachment	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		74	The spill impacted the street, curb, gutter, catch basin and one rock well. See Attachment	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Upon arrival sandbags were placed at both ends of the spill to contain it. A crew was called out to break the stoppage and clean the sewer line with a vacuum truck and then the crew proceeded to clean the street, curb and gutter. The crew then cleaned the catch basin, cross pipe and the rock well. 	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		The PM frequency has been increased to 4 months and an ECS Tech gave FOG literature to the 2 homes on the affected line. A 6 month CCTV PM has been created. See Attachment		01/02/2025 21:36	The CCTV crew found large tap roots at 64 ft. from the DSMH. Heavy roots combined with heavy grease caused the stoppage and the spill.		N/A	01/06/2025 08:25														N/A	Increased cleaning and monitoring.	Adjusted to 4 month cleaning schedule.	N/A	Line inspected, cleaned to remove tap roots and re-inspected to confirm root removal. 	N/A	Documents showing increased cleaning frequency and CCTV PM. See Attachment	N/A	N/A	
2	2SSO10209	Active	Union S.D. CS	Union Sanitary District	898634	1.5	Certified	Jose Rodrigues	Collection Services Manager	15-JAN-25	21-JAN-25	21-JAN-25	Category 2 Spill	41298 Paseo Padre Parkway, Fremont, CA 	01/10/2025 09:42	01/10/2025 09:45	01/10/2025 08:30	01/10/2025 11:30	25-0130		Spill release came from three private cleanouts that are installed on the same pipe. GPS coordinates identified for c/o closest to failure point, lat. 37.54053, lon. -121.94654. Spill appearance point #1 was roughly 25 feet behind curb. 	37.5407	-121.94653	Lateral Clean Out (Private); Lower Lateral (Private); Upper Lateral (Private)		Appearance points #2 and #3 are located at back of bank building.  Each c/o is identified in photos labeled  property cleanouts .	3457	Spill was released from three cleanouts located on private property off Paseo Padre Pkwy. Spill traveled north in the gutter on Paseo Padre Pkwy. to a storm inlet at the southeast corner of Driscoll Road and Paseo Padre Pkwy.  From this point, the spill traveled in the city storm pipe west to 540' to a point it was no detected by visual inspection of the storm inlet.  Extent of spill and spill boundaries identified in photos labeled   US Bank spill .	Y	Drainage conveyance system transporting spill consisted of a city storm inlet located on the southeast corner of Driscoll Road and Paseo Padre Pkwy., from this entry point, the spill traveled 540' west in the city storm pipe.  Drainage conveyance system entry point and storm inlet where no evidence of spill was found can be identified in photos labeled  city storm .	2553	0			3457	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface	N/A	The spill released from three private cleanouts located at 41298 Paseo Padre Pkwy, Fremont.  From there it traveled in the gutter going north to a city storm inlet at the southeast corner of Driscoll Road and Paseo Padre Pkwy.  Once in the storm system, the spill traveled 540' west to a storm inlet where it was no longer detected. Coordinate #1 identifies two c/o's at the back of the bank building.  Coordinate #2 identifies a c/o about 25 feet off the curb.  Coordinate #3 identifies storm inlet at the southeast corner.  Coordinate #4 identifies storm inlet which no sewage reached or was identified.	Y	37.54075	-121.94651	37.54051	-121.94655	37.54139	-121.94785	37.54019	-121.94894	01/10/2025 14:11	The measured volume method was used to calculate the spill footprint. Outlines of spill areas, depths of pooled wastewater, dimensions of pipe and storm basins were measured by staff who performed the calculations of each portion and totaled the volume released.	Spill assumptions were based on call times ,response time, and relief of spill time.  With these times and the spill volumes measured, a amount spilled was calculated.	Damage by Others Not Related to Collection System Construction/Maintenance; Other (specify below)	Spill was caused by contractor installing 2  conduit and cross bored into our 8  sewer mainline.	Gravity Mainline	N/A	Vitrified Clay	N/A	66	See Paseo Padre Pkwy. Spill Response form attachment.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System	N/A	See Paseo Padre Pkwy. Spill Response form attachment.	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Continued CCTV and cleaning of sewer main to prevent any further spills and until a repair is made by contractor who damaged the pipe.  Scheduled to be repaired within the next week.	See Paseo Padre Pkwy. Spill Response form and US Bank conclusion  attachments.	See Paseo Padre Pkwy. Spill Response form and US Bank conclusion  attachments.	01/10/2025 14:30	See Paseo Padre Pkwy. Spill Response form and US Bank conclusion  attachments.	Y	Investigating to locate contractor who cross bored and those responsible to make all repairs.	01/17/2025 15:00										N												Investigating to locate contractor who cross bored and those responsible to make all repairs.	
2	2SSO10170	Active	Richmond City CS	Richmond City	898640	1.1	Certified	Mary Phelps	Water Resource Division Manager		03-FEB-25	03-FEB-25	Monthly Category 3 Spill	3400 Macdonald Ave	12/16/2024 14:15	12/16/2024 14:55	12/16/2024 12:15				SSO discharged from manhole at location. Did not enter storm drain collection system. See attached photos.	37.93271	-122.33732	Manhole			620	See attached photos.	N						620	Paved Surface; Street/Curb and Gutter (2 3)		Residential curb, gutter, and sidewalk area.  	Y	37.93271	-122.33732							12/16/2024 15:19	Spill volume calculated based on operator training and experience, visual observation.  Spill rate (GPM) x Flow rate (min)	Citizen interviews and estimations based on notifications and clean up.	Debris-Rags; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		40	No impact, area was completely contained and returned to POTW.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below)		Cleared blockage and restored flow. Spill was completely contained and returned to POTW. Area was cleaned and sanitized.	Added Sewer to Preventive Maintenance Program		Added line to segment to Hot Spot list for increased cleaning/maintenance.		12/16/2024 15:19	FOG and rags were discovered during the clean up and are determined to be the cause of the SSO. 		Environmental Compliance will conduct public outreach.	12/16/2024 15:19														N/A	N/A	Increased cleaning.	N/A	N/A	N/A	Line added to City's official Hot Spot list	N/A	Environmental Compliance will conduct public outreach.	
9	9SSO10710	Active	USMC Base, Camp Pendleton CS	US Marine Corps Base Camp Pendleton	898647	1.2	Certified	Robert Stephen Ramsey	Public Works Officer	15-JAN-25	27-JAN-25	27-JAN-25	Category 1 Spill	LS 51056 FM	01/10/2025 12:00	01/10/2025 12:40	12/16/2024 09:00	01/10/2025 14:20	25-0142	27-FEB-25	SSO occurred on an abandoned LS 51056 8 inch PVC FM.  The abandoned FM SSO discharged at a cracked FM coupling (33.388710, -117551168)) caused by the LS 51056 pressurized flow.  1st attachment Map provides location of FM Cracked Coupling.	33.38871	-117.551168	Force Main		The 2nd Attachment provides a Latitude, Longitude Coordinate Map of SSO Spill Pond Area Extent and the San Onofre Creek.	1293012	(1) The 2nd Attachment provides a Latitude, Longitude Coordinate Map of SSO Spill Pond Area Extent 	Y	The 2nd Attachment provides a Latitude, Longitude Coordinate Map of the SSO Spill Pond Area in the San Onofre Creek.   	0	1293012	The 2nd Attachment provides a Latitude, Longitude Coordinate Map of SSO Spill Pond Area Extent 	1293012	0	Surface Water		San Onofre Creek.  Attachment 2 provides a Latitude, Longitude Coordinate Map showing the Extent of the SSO in the San Onofre Creek.	Y	33.388487	-117.551225	33.387224	-117.55153	33.387783	-117.554226	33.38824	-117.55437	01/13/2025 18:00	Spill volume based on LS 51056 Emergency Pump Recorded Operating Periods multiplied by the actual Emergency Pump flowrate. 	Spill volume based on LS 51056 Emergency Pump Recorded Operating Periods multiplied by the actual Emergency Pump flowrate. Data obtained from pump run times in logbook.	Other (specify below)	LS 51056 Emergency Pump mistakenly connected to a LS 51056 abandoned FM.	Force Main; Other (specify below)	FM Cracked Couping	Polyvinyl Chloride (PVC)		27	A reexamination of the SOP for connecting LS pumps to an appropriate FM.	N	Other (specify below)	(1) Shutdown LS 51056 Emergency Pump (2) Disconnected the LS 51056 Emergency Pump from the abandoned FM (3) Reconnected the LS 51056 Emergency Pump to the appropriate LS 51056 FM.	(1) Shutdown LS 51056 Emergency Pump (2) Disconnected the LS 51056 Emergency Pump from the abandoned FM (3) Reconnected the LS 51056 Emergency Pump to the appropriate LS 51056 FM. (4) Spill percolated into the ground down a ravine.	Other (specify below)	Isolate pumps from emergency pipeline connection. Disconnect temporary pump from tie-in point. Remove emergency pipeline discharge connection point from abandoned force main. 	(1) Shut off pumps and isolate pumps from emergency pipeline connection. Completed 1/13/2025 (2) Disconnected the LS 51056 Emergency Pump from the abandoned FM. Complete 1/22/2025. (3) Reconnected the LS 51056 Emergency Pump to the appropriate LS 51056 FM. Complete 1/22/2025. (4) Remove emergency pipeline discharge connection point from abandoned force main. Scheduled to be complete by 2/28/2025. 	(1) Shutdown LS 51056 Emergency Pump: 13Jan 2025, 1800 hrs. (2) Disconnected the LS 51056 Emergency Pump from the abandoned FM: 1/22/2025 (3) Remove emergency pipeline discharge connection point from abandoned force main. Scheduled to be complete by 2/28/2025.	01/13/2025 18:00	LS 51056 Emergency Pump connected erroneously to an abandoned LS 51056 FM.	Y	To determine why the LS 51056 emergency discharge connection point was not relocated or removed from service when new force main was constructed in 2010.	02/28/2025 18:00	San Onofre Creek	Stream/Creek		San Onofre Creek	None. Creek is dry	Other (specify below)	No public access impact	NA	0	N	N											To determine why the LS 51056 emergency discharge connection point was not relocated or removed from service when new force main was constructed in 2010.	
2	2SSO10170	Active	Richmond City CS	Richmond City	898648	1.2	Certified	Mary Phelps	Water Resource Division Manager		18-MAR-25	18-MAR-25	Monthly Category 3 Spill	835 7th St	12/30/2024 15:31	12/30/2024 15:45	12/30/2024 14:30				SSO discharge from multiple private service lateral cleanouts. Did not enter stormwater collection system.	37.94513	-122.36304	Lateral Clean Out (Private)			875	Spill onto paved street/gutter and sidewalk. Did not enter storm water collection system.	N						875	Paved Surface; Street/Curb and Gutter (2 3)		The crew observed multiple private service lateral cleanouts overflowing.	Y	37.94513	-122.36304							12/30/2024 15:54	Spill volume calculated based on operator training, experience, and visual observation. Spill rate (GPM) x Flow rate (min)= Spill vol (gallons)	Citizen interviews, start time based on residential notification, end time based om time flow stopped discharging.	Debris-Rags; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		40	No impact as spill was completely contained and returned to POTW.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below)		Blockage cleared. Spill was completely contained and returned to POTW. Area was cleaned and sanitized.	Added Sewer to Preventive Maintenance Program		Blockage cleared. Added line segment to Hot Spot list for increased cleaning/maintenance.		12/30/2024 18:07	A blockage of FOG and rags was determined to be the cause of the overflow. Entire line was drained and cleaned. Increased cleaning efforts.		Environmental Compliance will conduct outreach in the area.	12/30/2024 18:07														N/A	N/A	Increased cleaning.	N/A	N/A	N/A	Line segment added to City's official Hot Spot list.	N/A	Environmental Compliance will conduct outreach in the area.	
5S	5SSO10896	Active	City Of Lakeport CS	Lakeport City	898649	1.2	Certified	Jen Baker 	Compliance Officer 	15-JAN-25	22-JAN-25	22-JAN-25	Category 1 Spill	Manhole 376 - 447 Bevins St (closest parcel) 	01/14/2025 11:25	01/14/2025 11:30	01/14/2025 11:25	01/14/2025 13:05	25-0196		Spill at manhole # 376- GPS coordinates: 39.039778, -122.924528 Please see the attached reporting package for full details and photos 	39.039778	-122.924528	Manhole	Single appearance point at manhole 	None	12	Contractor failed to remove  plug  from manhole before moving on with project causing SSO at manhole. SSO  seeped  from the manhole to the paved curb area leading to DI. Please refer to the full report attached 	Y	pictures are attached to the report. DI drains directly to the Forbes Creek flow path. The creek is wet but not flowing at this time. 	5	0	Pictures of entrance DI and Vac truck vacuuming receiving culvert attached  Total SSO spill volume 12 gallons with only 5 reaching DI due to project BMPs (sandbags) in place before spill all 12 gallons captured including 5 gal into DI	5	5	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		Contractor flow diversion error causing 12 gall SSO at manhole #376. Approx 5 gall of spill seeped past in place BMPs (sandbags) into DI feeding directly to Forbes creek. Responding crews captured all 12 gall of SSO materials and disposed of per procedure. Full details in reporting package.  	Y	39.039778	-12.924528							01/14/2025 11:35	Eyeball method due to small quantity and low flow rate of <1gpm. Responding staff calculated the flow rate per visual assessment. 	Start and stop times are direct reports of responding staff and project coordinators. A contractor working adjacent to spill site at start time. 	Construction Diversion Failure; Other (specify below)	The contractor forgot to remove the plug diverting flow, causing SSO at the manhole. 	Manhole	SSO from manhole only 	Other (specify below)	NA manhole 	0	Spill contained to 15ft section of the curb at the western edge of the manhole leading to DI. 5 gall into DI feeding directly to Forbes Creek all SSO captured and disposed of. Please see the full package for the map and further details 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	Additional BMPs (sand berms) were placed. All SSO-affected areas were washed by hydro flush and backpack disinfected. All SSO was captured by vacuum truck and disposed of. 	At spill start, the contractor began response with their vacuum truck until city response crew arrived <5min. On arrival city crews placed additional sand berms and continued vacuuming spill including into receiving DI and receiving culvert across the street to ensure all was captured. Clean up included hydro flush and backpack disinfectant of all affected paved areas- all spill captured and returned to sanitary sewer system.   	Other (specify below)	The contractor's crew failed to remove the  plug  from the manhole before moving on to their next task. Unfortunately, this error is the cause of the SSO. Any future need for the contractor to modify flow will be notified to the city inspector in advance to monitor operations more closely.  	Contractor has been advised of required advance notification for any future flow diversions so that the city may monitor the project more closely to mitigate potential future SSOs due to this project. 	The contractor was advised of new advanced notification requirements 1/14/2025. Additional city project observation will occur during any future flow modifications	01/14/2025 13:48	The contractor did not remove the manhole  plug  used for flow diversion during the project, causing manhole 376 to spill. Responding city crews removed the plug and hydro flushed the manhole to restore flow. Additional details are in the attached reporting package. 	N	The cause of SSO was confirmed at the time of the responding staff interview. No need for further investigation at this time. 		Forbes Creek 	Stream/Creek		Forbes Creek is a seasonal watercourse in Lakeport, California, that originates west side of the city. The creek flows eastward. It traverses through urbanized sections of Lakeport, including several culverted segments, before discharging into Clear Lake. At the time of SSO Forbes Creek was wet but not flowing	No impact observed	Other (specify below)	No public access impacted - SSO mitigated, captured, and affected areas cleaned within 30 min of spill 	No waterbody was closed 	0	N	N	No samples required due to spill size and all was able to be captured and returned to sanitary sewer system. 	NA									The cause of SSO was confirmed at the time of the responding staff interview. No need for further investigation at this time. 	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	898653	1.1	Certified	David Leamer	Assistant Superintendent		23-JAN-25	23-JAN-25	Monthly Category 3 Spill	353478	12/20/2024 14:49	12/20/2024 15:22	12/20/2024 10:30				See Attached Spill map with Photos.	38.62527	-121.36751	Lateral Clean Out (Public)			60	See Attached Spill Map with Photos	Y	See Attached Spill map with Photos.	53				57	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		See attached Spill Map with Photos.	Y	38.62556	-121.36763	38.62597	-121.3678					12/20/2024 15:22	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Debris-General		Gravity Mainline		Vitrified Clay		59	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		See Attached Description of Spill Event	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		SacSewer inspected mainline with CCTV on 1/2/25. Based on findings, SacSewer increased preventative cleaning frequency to 6 months from 12 months.		12/20/2024 12:18	Grease in the SacSewer main line caused the SacSewer cleanout at 3224 Green Crest Court to spill. The spill was not ongoing upon arrival of the SacSewer Pre-checker. The spill from the cleanout flowed onto the lawn, to the sidewalk, along the curb and gutter to the storm drain inlet at 3236 Green Crest Court. There was no flow observed in the drainage conveyance system upon the arrival of the Spill Responder. A rain event did not occur during the spill duration or site investigation. SacSewer crews used a hydro-vacuum truck to rinse and vacuum the affected above-ground surfaces in contact with sewage. SacSewer crews used a hydro-vacuum truck to rinse and vacuum the affected storm drain inlet to the waterway outfall at 3236 Green Crest Court. The spill was fully recovered.		None	12/20/2024 18:00														N/A	SacSewer increased preventive cleaning frequency from 12 months to 6 months.	SacSewer increased preventive cleaning frequency from 12 months to 6 months.	N/A	SacSewer inspected mainline with CCTV on 12/30/24.	N/A	SacSewer increased preventive maintenance frequency on 1/2/25	N/A	None	
4	4SSO10388	Active	Glendale City CS	Glendale City	898656	1.4	Certified	Gary Harris	Wastewater Superintendent 	15-JAN-25	24-JAN-25	24-JAN-25	Category 1 Spill	2425 E. Chevy Chase Dr. Glendale, CA 91206	01/10/2025 10:10	01/10/2025 13:20	01/09/2025 08:30				Spill occured in City easement, sewer manhole is located behind retaining wall adjacent to 2425 E. Chevy chase Dr. Glendale, CA 91206.	34.15998	-118.21464	Manhole			270	Spill occured in wooded area located in City easement. Spill went through opening in retaining wall, down private stairwell and onto curb & gutter leading to a nearby catch basin.	Y	Spill entered a catch basin owned by LACFCD, ID 1799002 leading into the Sycamore Canyon Channel a 150  reinforced concrete box (RCB).	0	270	All of City of Glendale water shed discharges into the LA River.	270	0	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Unpaved Surface		Spill origin point, Sanitary Sewer Manhole located in City easement adjacent to 2425 E. Chevy Chase Dr. Glendale CA. Spill entered catch basin id #1799002, drains to Sycamore Canyon Channel then to Scholl Channel which leads to an open channel Verdugo Wash. Verdugo Wash empties to LA River.	Y	34.15998	-118.21464	34.15261	-118.27887					01/10/2025 13:30	Volume estimate based on observed wetted area on private stairway leading out to curb & gutter and into receiving catch basin. and observed flow in upstream manhole post spill. See attachments. A conservative estimate of 1 GPM was used to calculate volume. 270 minutes x 1 gpm= 270 gallons. See 3.a. for minutes. 	Post spill interview with reporting party, resident at 2425 E. Chevy Chase Dr. (David Brizuela). He discovered a manhole leaking on 01/09, this manhole is located in the back of property in City easement. David observed a small leak coming from manhole through an opening in a retaining wall. Leak was observed once starting at 8:30am for about one hour (60 minutes) and a second time about 12pm, again for about one hour. This repeated on Friday 01/10 when spill was reported. Based on observed spill occurrences and duration, 120 minutes on 01/09 and 120 minutes on 01/10 for a total of 240 minutes. 30 minutes added for response, operator arrival on scene and stoppage relief, for a total of 270 minutes.	Other (specify below); Root Intrusion	Root intrusion from abandoned private lateral connection. See attachment .	Gravity Mainline		Vitrified Clay		60	Very minor wetted area on private exterior staircase leading to curb & gutter.	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow	Sanitized affected area with water & bleach, Vacuum recovered all clean up water using a combination truck. Notified LA County Health Department.	Operators relieved stoppage (roots) causing spill. Minor wetted area at exterior private staircase leading to curb & gutter sanitized with bleach & water.	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer; Post Spill CCTV		Post spill CCTV found cause of stoppage to be a root ball covering more than 90% protruding from an abandoned private lateral. Root was removed by a City Contractor (Robotics Sewer Solutions) and abandoned lateral was sealed using a sectional liner. See attachments.	Root was removed by a City Contractor (Robotics Sewer Solutions) and abandoned lateral was sealed using a sectional liner. Work completed on 01/21/2025. 	01/10/2025 15:30	Post spill CCTV found cause of stoppage leading to spill to be a root ball covering more than 90% protruding from an abandoned private lateral.	N			L.A. River	River		The Los Angeles River (Spanish: R�o de Los �ngeles), historically known as Paayme Paxaayt 'West River' by the Tongva and the R�o Porci�ncula 'Porci�ncula River' by the Spanish, is a major river in Los Angeles County, California. Its headwaters are in the Simi Hills and Santa Susana Mountains, and it flows nearly 51 miles (82 km) from Canoga Park through the San Fernando Valley, downtown Los Angeles, and the Gateway Cities to its mouth in Long Beach, where it flows into San Pedro Bay. While the river was once free-flowing and frequently flooding, forming alluvial flood plains along its banks, it currently flows through a concrete channel on a fixed course, which was built after a series of devastating floods in the early 20th century.	None	Other (specify below)	None	City of Long Beach Health Department	0	N	N												
4	4SSO10394	Active	Industry City CS	City of Industry	898667	1.2	Certified	May Hong	Civil Engineer	16-JAN-25	27-JAN-25	27-JAN-25	Category 1 Spill	2305-0656 (1100 Coiner Court, Industry, CA)	01/14/2025 15:10	01/14/2025 16:00	01/14/2025 14:30				CSMD Map Sheet No. 2305 MMS No. 9196548 Manhole No. 656	33.99651	-117.89516	Manhole			700	Sewage discharged from Manhole No. 656 into the private storm drain at 1100 Coiner Court, Industry, CA.   	Y	Sewage discharged from Manhole No. 656 into the private storm drain at 1100 Coiner Court, Industry, CA. 	0	700	Sewage discharged from Manhole No. 656 into the private storm drain at 1100 Coiner Court, Industry, CA, which leads to San Jose Creek-Thompson Creek to U/S San Gabriel River. 	700	0	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Sewage discharged from Manhole No. 656 into the private storm drain at 1100 Coiner Court, Industry, CA, which leads to San Jose Creek-Thompson Creek to U/S San Gabriel River. 	Y	33.99656	-117.89459							01/14/2025 17:10	CWEA SSCSC Manhole Gauge. Visual or Eyeball Method.	The start time is obtained from the reporting party, and the end time is determined when the crew clears the obstruction and the overflow stops. 	Damage by Others Not Related to Collection System Construction/Maintenance; Fats, Oil and Grease (FOG); Pipe Structural Problem/Failure - Controls	A CSMD sewer mainline was damaged within Union Pacific Railroad (UPRR) right-of-way inside the City of Industry due to ongoing construction in the railroad right-of-way. 	Gravity Mainline		Vitrified Clay		37	Sewage discharged from Manhole No. 656 into the private storm drain at 1100 Coiner Court, Industry, CA, which leads to San Jose Creek-Thompson Creek to U/S San Gabriel River. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow	 	Upon arrival at the address 1100 Coiner Court, Industry. Manhole No. 656 showed signs of overflow. A containment plan was initiated and executed. Hydro jet equipment was used to clear the mainline blockage, from Manhole Nos. 284 to 281 at Charlie Rd, removing grease accumulated due to pipe damage by Santa Fe Railroad and reliving overflow. Pump crew was scheduled to maintain overnight. All required agencies were notified. 	Other (specify below)	This is an ongoing issue with Santa Fe Railroad and the Division is aware of breached mainline. Mainline will be repaired by San Gabriel Valley Counsil of Governments at 1333 Mayflower Ave #360, Monrovia, CA 91016.	N/A	N/A	01/14/2025 20:45	N/A	N			San Jose Creek - Thompson Crk to U/S San Gabriel River, San Gabriel River 	River; Stream/Creek		Sewage discharged from Manhole No. 656 into the private storm drain at 1100 Coiner Court, Industry, CA, which leads to San Jose Creek-Thompson Creek to U/S San Gabriel River. 	No Impact.	Other (specify below)	No Impact.	N/A	0	N	N												
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	898670	1.2	Certified	Kent Vian	Asst. Deputy Director	16-JAN-25	31-JAN-25	31-JAN-25	Category 1 Spill	NOT# 40201196514 8588 RUETTE MONTE CARLO	01/15/2025 07:44	01/15/2025 08:38	01/15/2025 07:43	01/15/2025 10:17	25-0207		THE OVERFLOW ORIGINATED FROM A CLEANOUT AT 8588 RUETTE MONTE CARLO. SPILL APPEARANCE POINTS WERE ALSO INSIDE THE BUILDING. PLEASE SEE ATTACHED PICTURES.	32.86284	-117.25001	Inside Building or Structure; Lateral Clean Out (Private)	NA	SPILL APPEARANCE POINTS INSIDE A BATHTUB, A SHOWER AND THE LAUNDRY ROOM OF 8588 RUETTE MONTE CARLO.	850	THE SPILL EXITED THE CLEAN OUT, TRAVELED NORTHEAST ABOUT 85' INTO A DROP INLET WHERE IT HIT A STORM DRAIN AND THEN TRAVELED 1600' TO THE STORM DRAIN OUTLET, THEN TRAVELED 20' THROUGH THE SAND AND REACHED THE PACIFIC OCEAN. PLEASE SEE ATTACHED PICTURES.	Y	THE DRAINAGE CONVEYANCE SYSTEM WAS UNDERGROUND, WITH A 48  CAST-IN-PLACE CONCRETE PIPE. PLEASE SEE ATTACHED PICTURES.	0	0	THE DISCHARGE POINT TO THE SURFACE WATER WAS THE SPILL EXITED THE DRAINAGE CONVEYANCE SYSTEM AT THE BEACH AND THEN ENTERED THE PACIFIC OCEAN. PLEASE SEE ATTACHED PICTURES.	750	100	Building or Structure; Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface	NA	(1.D.E.) THE SPILL EXITED THE CLEAN-OUT AND TRAVELED NORTHEAST ABOUT 85' INTO A DROP INLET(1.F.G.) WHERE IT HIT A STORM DRAIN AND THEN TRAVELED 1600' TO THE STORM DRAIN OUTLET(1H.I.), THEN TRAVELED 20' THROUGH THE SAND AND REACHED THE PACIFIC OCEAN. (1.J.K)	Y	32.86283	-117.24994	32.86314	-117.25004	32.8629	-117.25486	32.86296	-117.2551	01/15/2025 09:08	THE SPILL VOLUME ESTIMATIONS WERE CALCULATED USING THE FLOW AND DURATION METHOD.	THE SPILL START TIME WAS WHEN THE CUSTOMER NOTIFIED DISPATCH OF THE BACKUP, AND THE END TIME WAS WHEN THE BLOCKAGE WAS RELIEVED AND CREWS CONFIRMED THE SPILL STOPPED.	Damage by Others Not Related to Collection System Construction/Maintenance; Vandalism (specify below)	THERE WAS AN UNKNOWN METAL OBJECT WITH A 15' 1/4  DIAMETER HOSE ATTACHED AND WAS TANGLING UP DEBRIS THAT THEN EVENTUALLY CAUSED THE BACKUP.	Manhole	NA	Vitrified Clay	NA	51	THE IMPACTS OF THE SPILL WERE TO THE INSIDE AND OUTSIDE OF THE HOME, TO THE CURB AND GUTTER, THE STORM CONVEYANCE SYSTEM AND THE PACIFIC OCEAN.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	NA	THE CREW ONSITE DID NOT CONTAIN THE SPILL IMMEDIATELY DUE TO THE BACKUP GOING INSIDE THE HOME. THERE WAS A PRIVATE RESTORATION COMPANY (SOLID PROPERTY SERVICES) CONTAINING THE SPILL INSIDE THE PROPERTY UPON ARRIVAL WITH SHOP VACS. CREWS WASHED DOWN THE FRONT OF THE HOME, CURB AND GUTTER AND FLUSHED THE STORM DRAIN WITH CLEAN WATER AND COLLECTED THE WATER IN THE STORM DRAIN DOWNSTREAM.	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV	NA	THE CORRECTIVE ACTIONS OF THE SPILL WERE TO RELIEVE THE STOPPAGE USING A COMBINATION TRUCK (JETTER) AND TRAP THE DEBRIS. NOTIFIED UNIVERSITY OF INCIDENT AND ARE REMOVING ALL TESTING EQUIPMENT TO PREVENT ANOTHER EQUIPMENT FAILURE.  	N/A	01/15/2025 20:30	THERE WAS AN UNKNOWN METAL OBJECT WITH A 15' 1/4  DIAMETER HOSE ATTACHED AND WAS TANGLING UP DEBRIS THAT THEN EVENTUALLY CAUSED THE BACKUP. AFTER INVESTIGATION FOUND METAL OBJECT BELONING TO COVID TESTING EQUIPMENT FROM THE UNIVERSITY OF SAN DIEGO COVID-19 TESTING PROGRAM. 	N	NA	01/28/2025 08:05	PACIFIC OCEAN	Ocean	NA	The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on the definition, to Antarctica) in the south, and is bounded by the continents of Asia and Australia in the west and the Americas in the east.	No impacts on aquatic life were observed.	Public Closure	NA	DEPARTMENT OF ENVIORNMENTAL HEALTH	1	N	Y	SITE NAME         LATITUDE        LONGITUDE SI-010                 32.86353         -117.25508 EH-340                32.86294         -117.25566 EH-340-150L       32.86254         -117.25572	TOTAL COLIFORMS, E. COLI, ENTEROCOCCUS									NA	
9	9SSO10660	Active	City of Vista CS	Vista City (aka City of Vista)	898679	1.2	Certified	Kenneth Knatz Jr.	Sewer Engineering Manager		30-JAN-25	30-JAN-25	Monthly Category 3 Spill	305 Civic Center Dr	01/13/2025 15:10	01/13/2025 15:20	01/13/2025 14:00				33.2012759,-117.235613. Spill traveled approximately 100ft from cleanout. 	33.2013	-117.23534	Lateral Clean Out (Private)			100	Photograph shows spill leaking from private cleanout in front yard of single family home and traveling down driveway. 	N	NA	0				80	Paved Surface; Street/Curb and Gutter (2 3)		Spill traveled down paved driveway to curb and gutter where vactor was set up to capture. 33.201414, -117.235233	Y	33.201414	-117.235233							01/13/2025 15:30	Field crew receives annual spill estimation training to simulate various GPM flows.  Spill recovery is estimate volume is correlated to vactor tank volume float gauge.	Considered start time and end time of spill vs flow rate out of private cleanout.  Quality controlled with vactor recovery volume. 	Root Intrusion		Gravity Mainline	Roots entering gravity main from the private lateral 	Vitrified Clay		59	None that was apparent.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Crew cleaned up what did not soak into unpaved surface.	Sand bag was placed in the curb and gutter to contain spill. Vactor was set up near this bag to capture flow. 	Plan Rehabilitation or Replacement of Sewer	Provided resident with City lateral policy noting private lateral maintenance responsibilities.  Advised to contact plumber and have roots treated/jetted.	Pipe will be CIPP lined and cleaned every 3 months.		01/13/2025 15:30	CCTV confirms that pipe is heavily impacted by roots at joints and coming in through private laterals. Once pipe is lined risk of spill will be reduced.		Pipe was discussed with Engineering Dept to add to CIP project.	01/16/2025 15:38														None beyond notifying property of lateral maintenance responsibility.  Progressive enforcement as needed.  	Pipe will be lined to make sure that public sewer main is not at fault when spill occurs. 	Pipe to be cleaned every 3 months rather than once per cycle.	Included in CIPP rehabilitation contract scheduled for bidding in early spring. 	Line cleared and root prevention treatment added.  	Pipe lining is scheduled for near future as noted in 20.d.2.	Pipe on 3 month cleaning cycle in our CMMS software.	Will add root treatment to slow root growth. 	Pipe was discussed with Engineering Dept to add to CIP project.	
2	2SSO10127	Active	Delta Diablo SD CS	Delta Diablo	897860	2.1	Amended	Trevor Simpson	Maintenance Supervisor	05-DEC-24	16-JAN-25	16-JAN-25	Category 1 Spill	Shore Acres Pump Station located at 1725 Port Chicago Highway, Bay Point	12/02/2024 15:20	12/02/2024 15:20	11/05/2024 12:00	12/02/2024 16:44	24-6720	16-JAN-25	Spill resulted from a break in a 16-inch discharge forcemain approximately 120 feet east of District�s Shore Acres Pump Station entrance gate (38.043476, -121.977472) adjacent to marshland area on private property (Military Ocean Terminal Concord). The spill start date and time are still under investigation; the District will provide a more extensive report describing the circumstances in the upcoming 15- and 45-day reports, as appropriate, which will also inform the estimated spill volume noted in Section 8 below.	38.043476	-121.977472	Force Main; Gravity Mainline; Pump Station		There were two additional appearance points on December 4, 2024 from the Shore Acres Pump Station wet well and a gravity collection system manhole immediately upstream of the Shore Acres Pump Station as part of remedial response efforts. Both locations are within 200 feet of the forcemain break. Photographs showing the spill location(s) and surrounding area are attached.	20000000	Marshland area immediately adjacent to forcemain break location with potential for migration to Suisun Bay approximately 1,300 feet north of line break via a natural drainage channel located on marshland area. The District is collecting and analyzing samples from receiving waters as part of SSO response plan and performing visual observations. The District is assessing the extent of the spill boundaries. An aerial photograph showing the approximate location of the spill, natural drainage channel, and Suisun Bay is attached.	N	No, the District is not aware of the spill reaching stormwater and/or a constructed drainage conveyance systems. As noted above, the spill likely entered a natural drainage channel located on adjacent marshland area.			As noted above, the spill likely entered a natural drainage channel located on adjacent marshland area. The natural channel appears to discharge into Suisun Bay (38.047125, -121.977470). Photographs showing the discharge point and warning signage posted on the shoreline are attached.	20000000	0	Other (specify below); Surface Water; Unpaved Surface	In the vicinity of a natural drainage channel in a marshland area on private property owned by Military Ocean Terminal Concord.	See attachment - Certified Spill Report Question 1.b - Delta Diablo	Y	38.043476	-121.977472	38.047055	-121.977435					12/04/2024 17:30	See attachment - Certified Spill Report Questions 3 and 3.a - Delta Diablo	See attachment - Certified Spill Report Questions 3 and 3.a - Delta Diablo	Other (specify below); Pipe Structural Problem/Failure - Installation	Based on site investigations during emergency construction, the District has preliminarily determined the 16-inch forcemain (mortar-lined steel cylinder pipe) failed due to localized corrosion along a ~20-foot pipe section. This resulted in SSO conditions at the line break location ~5 feet below grade in an intermittently submerged area, which limited visual identification of SSO conditions at the pipe failure location. The District is engaging with a specialized engineering consultant to conduct a technical review of the forcemain failure mode, including root causes and contributing factors, and will make this information available to the Regional Water Board as part of future Spill Report submittals.	Force Main		Other (specify below)	Steel cylinder pipe (mortar lined) and fittings that met the requirements of AWWA C-303 (in 1978) and construction project specifications. See attachment - Certified Spill Report Question 6.a Attachment - Delta Diablo.	44	Based on preliminary field site observations, the District has not observed physical evidence of gross pollution (i.e., rags, debris) in the adjacent marshland area or in the natural flow channel. In addition, the District has not observed impacts to aquatic life, wildlife, or vegetation in the area. The District has hired a specialized consulting firm with specialty biologists and significant experience and expertise in identifying site impacts and remedial response plans. The District has been working to identify and comply with site access requirements in coordination with CA Department of Fish and Wildlife (CDFW) and the private property owner (Military Ocean Terminal Concord) so the consultant can conduct a site assessment during low-tide conditions (tentatively expected to be completed by December 24, 2024). The District will report site investigation findings and the recommended remedial response plan as part of future Spill Report submittals to the Regional Water Board.	N	Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow		See attachment - Certified Spill Report Question 9.b - Delta Diablo 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect	See attachment - Certified Spill Report Question 10.a - Delta Diablo 	The District is engaging with a specialized engineering consultant to conduct a technical review of the forcemain failure mode, including root causes and contributing factors. A comprehensive, internal review of operational conditions is also occurring. As a result of both these reviews, the District will identify any appropriate corrective and preventive actions to effectively reduce, eliminate, and/or prevent the potential for a recurrence of the SSO event. The information from both of these efforts will be reported to the Regional Water Board as part of future Spill Report submittals. 	See attached - Certified Spill Report Question 10.c - Delta Diablo 	12/04/2024 17:30	Based on site investigations during emergency construction, the District has preliminarily determined the 16-inch forcemain (mortar-lined steel cylinder pipe) failed due to localized corrosion along a ~20-foot pipe section. This resulted in SSO conditions at the line break location ~5 feet below grade in an intermittently submerged area, which limited visual identification of SSO conditions at the pipe failure location. The District is engaging with an engineering consultant to conduct a technical review of the forcemain failure mode, including root causes and contributing factors, and will make this information available to the Regional Water Board as part of future Spill Report submittals.  The District is also conducting a comprehensive, internal review of the operational conditions that existed, and may have contributed to the delay in identifying the SSO event. This information will be reported to the Regional Water Board as part of future Spill Report submittals.	Y	The District is conducting multiple comprehensive reviews to identify the spill boundaries, any further spill response, SSO cause, operational and/or infrastructure limitations, and recommended corrective action(s). The District will continue undertaking corrective and preventative actions, as appropriate. 	03/05/2025 12:00	Unnamed natural drainage channel in a marshland area leading to Suisun Bay on private property 	Estuary; Other (specify below)	Natural drainage channel in a marshland area on private property	Suisun Bay is a shallow tidal estuary. It lies at the confluence of the Sacramento River and San Joaquin River. To the west, Suisun Bay is drained by the Carquinez Strait, which connects to San Pablo Bay, a northern extension of San Francisco Bay.	See attachment - Certified Spill Report Question 15.a - Delta Diablo 	Other (specify below)	The SSO occurred on private property owned to Military Ocean Terminal Concord. The District posted warning signs at the edge of the marshland area and Suisun Bay receiving waters, and notified the private marina located one mile to the east. There are no public beaches, access conditions, or uses near the SSO location on private property.	N/A (no public usage nearby)	0	N	Y	Refer to map - Certified Spill Report Question 17.a Attachment - Delta Diablo	Samples were analyzed for dissolved oxygen, temperature, pH, conductivity, ammonia-nitrogen, total coliform, fecal coliform, enterococci (Enterolert)									The District is conducting multiple comprehensive reviews to identify the spill boundaries, any further spill response, SSO cause, operational and/or infrastructure limitations, and recommended corrective action(s). The District will continue undertaking corrective and preventative actions, as appropriate. 	
4	4SSO11423	Active	Long Beach Water Dept. CS (SSO program)	Long Beach City, Water Dept	898687	1.1	Certified	Diana Tang	Assistant General Manager		12-FEB-25	12-FEB-25	Monthly Category 3 Spill	3321 E. Ransom Street Long Beach CA.	01/11/2025 21:20	01/11/2025 21:52	01/11/2025 21:20				The spill originated at a private 4  clean out at 3321 E. Ransom Street.	33.78689	-118.15298	Lateral Clean Out (Private)			63	The Spill originated at a private 4  clean-out, it traveled downward onto the street curb and gutter. The spill expanded down the street curb and gutter for about 400ft, where it was promptly contained by the quick response of the cleanup crew. The containment measures implemented by the crew included the use of sandbags to prevent further spread and mitigate any potential harm.	N	N/A	0				63	Street/Curb and Gutter (2 3)		At a private 4  clean-out, sewage overflowed from the system, resulting in approximately 63 gallons of sewage traveling down the street. Containment measures were implemented to prevent further spread, including deploying barriers to contain the spill within the affected area.	Y	33.78689	-118.15298							01/11/2025 21:52	The spill volume was calculated by multiplying Length � Width � Depth and converting to gallons (� 7.48). Using the measurements of 400 feet (Length) � 8 inches (0.66667 feet Width) � 3/8 inches (0.03125 feet Depth), the calculation is: (400 � 0.66667 � 0.03125) � 7.48 = 62.2 gal. Approximately 63 gallons	The spill start time was confirmed through direct communication with the property owner who initially reported the sewer blockage. No additional water was used once the spill was discovered.	Root Intrusion		Lower Lateral		Vitrified Clay		105	The environmental impact was minimal, as our contractor Ocean Blue successfully recovered and cleaned up the spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		1. Spill Containment: A sewage overflow from a private 4  clean out, resulted in a spill of approximately 63 gallons. Containment measures, such as deploying barriers were implemented to prevent the spill from spreading beyond the affected area. 2. Cleanup Efforts: Ocean Blue Environmental initiated the clean up operations for the spill on the  street. A pressure washer and a vacuum truck were used to clean up the 63 gallons of sewage.      	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		The corrective actions for the spill included immediate containment and cleanup efforts. The sewer lateral lateral was undergone thorough hydro-jetting to remove the roots and will be scheduled for repair in the next four months.		01/12/2025 01:02	On 1/13/2025, a post CCTV inspection was conducted  in the sewer service lateral. After the inspection it was determine that roots were the main cause of the blockage in the lateral.  To resolve the issue, a thorough hydro-jetting process was carried out to remove the roots and ensure smooth flow of wastewater. the lateral is scheduled to be repaired in the next three to four months.		No ongoing investigation.	01/13/2025 09:46														The Long Beach Health Department was notified.	Root intrusion was successfully cleared from the sewer lateral, and repairs will be scheduled for completion within the next 4 months.	We will continue maintaining the sewer service lateral until the repairs are completed.	Long Beach Utilities will repair the sewer lateral.	CCTV inspections were conducted to identify the cause of the blockage. After determining the cause and location, crews took appropriate measures to thoroughly clear the root obstruction.	The lateral will be repaired. 	No modifications have been made to the system or operating procedures.	We will continue following our spill response procedures on containment and clean-up efforts.	No ongoing investigation.	
2	2SSO10179	Active	San Jose City CS	San Jose City	898693	1.3	Certified	BINH TRAN	DIVISION MANAGER	17-JAN-25	05-FEB-25	05-FEB-25	Category 1 Spill	1981 Malden Ave	01/15/2025 12:32	01/15/2025 13:00	01/15/2025 12:00	01/15/2025 14:17	25-0219		The location of the spill appearance point was a trench made for a remove and replace sanitary project along Malden Ave where the contractor hit the unmarked water main.	37.323176858004	-121.840395906499	Other (specify below)	Trench along Malden Ave 	NA	330	The spill originated from a project where they removed  the existing sanitary line and hit an unmarked water main. Water company pumped mixed sewage and potable water into catch basin# 4461 where the spill travelled through the city's storm drain system to Coyote Creek. 	Y	The Water Company pumped the mixed sewage from the trench to the near by storm catch basin along Malden Ave. The catch basin is connected to the City of San Jose's storm drainage system and reached an outfall at Coyote Creek.  	158	0	The sewage reached Coyote Creek while discharging from storm outfall. The location of the storm outfall along the Coyote Creek is approximately at location 37.322216493906446, -121.85344608186512 	172	158	Street/Curb and Gutter (2 3); Surface Water		The sewage reached Coyote Creek while discharging from storm outfall. The location of the storm outfall along the Coyote Creek is approximately at location 37.322216493906446, -121.85344608186512 	Y	37.322216493906	-121.853446081865							01/15/2025 12:30	Used spill estimates from the overland spill.� Measurements for spill on land� Per Capita method to estimate the sewage spill volume in trench. Flow-Rate Duration method to estimate mixed volume pumped into MS4.	Water company notified first responder of start time of when they began and ended discharging sewage into the nearest catch basin. 	Pipe Structural Problem/Failure - Installation		Gravity Mainline		Cast Iron		52	Water reached the street and curb and gutter, but was cleaned up.  Water reached a storm outfall at Coyote Creek. Staff found no impact to the water way or wildlife in the area.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Returned Portion of Spill to Sanitary Sewer System		Crew set up vaccon at last accessible manhole before the outfall and collected all remaining sewage until storm line tested negative for ammonia. 	Other (specify below)	ESD is discussing protocols regarding illicit discharging and response to  overflows with San Jose Water.	NA	NA	01/15/2025 12:30	Sanitary Segment # 17531 was being removed and replaced by a contractor. An unmarked water main was hit, causing San Jose Water to come out and mitigate flooding in trench. San Jose Water began to discharge trench water into the nearby catch basin, leading to the SSO. 	N			Coyote Creek	Stream/Creek		Coyote Creek mainstem is an urban, northward flowing 64 miles river in California whose much longer headwater creeks originate in the Diablo Range near Morgan Hill. From here it flows north through San Jose where it receives several different tributaries. Coyote Creek serves as the eastern boundary of downtown San Jose and after coursing through San Jos�, it empties into south San Francisco Bay.	No Impact 	Restricted Public Access		Valley Water	0	N	N												
9	9SSO10710	Active	USMC Base, Camp Pendleton CS	US Marine Corps Base Camp Pendleton	898697	1.2	Certified	Robert Stephen Ramsey	Public Works Officer	17-JAN-25	30-JAN-25	30-JAN-25	Category 2 Spill	Stuart Mesa Housing SMH 13Y851B SSO	01/15/2025 11:40	01/15/2025 12:00	01/15/2025 11:40	01/15/2025 18:30	25-0225		Stuart Mesa Housing SMH 13Y851B Cover Pickhole (Lat 33.249087, Long:: -117.409037) from a blocked debris/grease sewer main blockage.	33.249087	-117.409037	Manhole			2000	The 2000 gallon SSO began at SMH 13Y851B cover, overflowing to an adjoining 180 sf  pond seen in SMH 13Y581B photo, and traveling 170 ft to a Mitchell Ave sidewalk as shown in the Spill Path, Area map attachment.	N						750	Unpaved Surface		Spill began at SMH 13Y851B Cover Pickhole (Lat: 33.289087; Long: -117.409037) and ended at edge of Mitchell Ave sidewalk (Lat: 33.288878; Long: -117.407511).  The SSO encompassed approx 2,000 sf.  See SSO Path Map Attachment.	Y	33.289087	-117.409037	33.288878	-117.409511					01/15/2025 16:30	5 gpm overflowing from SMH13Y851B Cover Pickhole over a 5 hr period is 1,500 gals.  When crew arrived, an estiamated 500 gals had already ponded at the Spill location.  Total: 2,000 gallon spill.	Spill Start: 1/15/25, 1140 hrs; UNITY Call Spill End:  1/15/25, 1630 hrs; Response Crew Cleared SSO blockage	Debris-General; Fats, Oil and Grease (FOG)		Gravity Mainline		Polyvinyl Chloride (PVC)		27	(1) Required clearing of sewerline blockage 210 ft downstream of SMH 13Y851B.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		(1) Cleared sewerline blockage  (2) Sand bagged adjacent to Mitchell Ave sidewalk as preventive measure to ensure that SSO not spill onto sidewalk.   (3) Fenced off area to prevent potential contamination	Other (specify below)	(1) Ensure that the CDC kitchen facility uses its grease interceptor facility and not the sewer system for discharge of kitchen generated grease.	(1) Ensure that the CDC kitchen facility uses its grease interceptor facility and not the sewer system for discharge of kitchen generated grease.  Quarterly SCPP visit.  Mar 2025 next Qtrly SCPP CDC Visit	March 2025, SCPP CDC Inspection/Visit	01/15/2025 16:30	Spill caused by a grease/dirt blockage in sewerline downstream of SMH 13Y851B.  The only lateral feeding this sewerline is a CDC facility that has a working grease trap.  Grease trap appeared in a Dec 2024 inspection to have been maintained.  Ongoining investigation to ensure CDC is discharging its generated grease through the grease trap and not through sewer.	Y	Ongoining investigation to ensure CDC is discharging its generated grease through the grease trap and not through sewer.	03/31/2025 16:30										N												Ongoining investigation to ensure CDC is discharging its generated grease through the grease trap and not through sewer.	
5F	5SSO10778	Active	Wawona CS	US Dept of the Interior Park Service	898701	1.3	Draft Submitted			17-JAN-25			Category 1 Spill	Manhole 1-2 	01/17/2025 18:04	01/17/2025 18:15	01/07/2025 00:00	01/17/2025 14:31	25-0257		Sewage flowed from HM 1-2	37.54417	-119.64651	Gravity Mainline			148049	Spill point is about 200 feet from the South Fork of the Merced River. The spill entered the river. The spill may have started 1/7/202. Revised calculations are based on anticipated flow and actual flow received.	Y	Spill point is about 200 feet from the South Fork of the Merced River. The spill entered the river. The spill may have started 1/7/202. Revised calculations are based on expected flow and actual flow received.	0	0	Spill point is across unpaved surfaces and would soak into the ground.	148049	0	Surface Water; Unpaved Surface		Spill point is about 200 feet from the South Fork of the Merced River. The spill entered the river. The spill may have started 1/7/202. Revised calculations are based on anticipated flow and actual flow received.	Y	37.54417	-119.64651								Spill point is about 200 feet from the South Fork of the Merced River. The spill entered the river. The spill may have started 1/7/202. Revised calculations are based on anticipated flow and actual flow received.	Spill point is about 200 feet from the South Fork of the Merced River. The spill entered the river. The spill may have started 1/7/202. Revised calculations are based on anticipated flow and actual flow received.	Other (specify below)	A wooden 2x4 was blocking the manhole exit.	Manhole		Polyvinyl Chloride (PVC)		39	Spill point is about 200 feet from the South Fork of the Merced River. The spill entered the river. The spill may have started 1/7/202. Revised calculations are based on anticipated flow and actual flow received.		Restored Flow		A vacuum truck was brought on site and the manhole was cleared.	Other (specify below)	Looking to add the lift station flow to SCADA.	Looking to add the lift station flow to SCADA.	NA	01/17/2025 18:15		N			South Fork of the Merced River	River		South Fork of the Merced River	None	Other (specify below)	No impact to cold for recreational use.	NA	0	N	Y	Above and below the spill site.	Total coliform and e.coli.										
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	898703	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		04-FEB-25	04-FEB-25	Monthly Category 3 Spill	9198 West Cordell Drive	01/17/2025 20:15	01/17/2025 21:00	01/17/2025 20:15				The initial crew arrived at 9:00 P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. Spill coming from a maintenance hole located at Doheny Drive and Cordell Drive.	34.094297	-118.392167	Manhole	Maintenance Hole.		216	See attached	N						216	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	34.094297 -118.392167	Y	34.094297	-118.392167							01/17/2025 21:30	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.	DIAMETER OF PICKHOLE OR OPENING 0.75 I NCHES HEIGHT OF WATER OUT OF PICKHOLE/OPENING 0.5 INCHES FLOWRATE PER PICKOLE/OPENING (GPM) 1 GPM # OF PICKHOLES/OPENINGS 2 TOTAL FLOWRATE (GPM) 3 GPM DURATION OF SPILL (MINUTES) 75 MINUTES TOTAL FLOW (GALLONS) 216 GALLONS	Root Intrusion		Gravity Mainline		Vitrified Clay		100	It was estimated that approximately 216 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire amount was returned back to the systems.	N	Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		On Friday, January 17, 2025, at 08:15 PM., the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 9198 West Cordell Drive (592-G5). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 09:30 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.    It was estimated that approximately 216 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire amount was returned back to the systems. 	Adjusted Schedule/Method of Preventive Maintenance		On Friday, January 17, 2025, at 08:15 PM., the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 9198 West Cordell Drive (592-G5). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 09:30 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.    It was estimated that approximately 216 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire amount was returned back to the systems. 		01/17/2025 21:30	On Friday, January 17, 2025, at 08:15 PM., the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 9198 West Cordell Drive (592-G5). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 09:30 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.    It was estimated that approximately 216 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire amount was returned back to the systems. 		None at this time	01/17/2025 21:30														None at this time	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	None At This Time.	None At This Time.	None at this time	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 09:30 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.    As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule. 	None at this time	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	898705	1.2	Certified	Gerald Watson	Sanitation Wastewater Manager III	24-JAN-25	24-JAN-25	24-JAN-25	Category 2 Spill	3715 East Whittier Boulevard	01/20/2025 20:30	01/20/2025 20:56	01/20/2025 20:30	01/20/2025 23:39	25-0291		The initial crew arrived at  8:56 P.M. and discovered an 12-inch mainline sewer serving the referenced area backed up to a blockage. Spill coming from a maintenance hole at Percy Street R/W.	34.025317	-118.193821	Manhole			1830	See attached	N		0	0			1830	Building or Structure		It was estimated that approximately 1,340 gallons of sewage backed out of the sewer as a result of the blockage. Approximately 884 gallons of the backup come out of the clean out and structure at 3651 East Whittier Boulevard. The remaining 456 gallons came out of the clean out at 3647 East Whittier Boulevard. The crew was able to establish containment and subsequently the entire back up amount returned to the sewer system.	Y	34.025207	118.194199							01/06/2025 21:20	Diameter of pickhole or opening4inches Height of water out of pickhole/opening0.0625inches Flowrate per pickole/opening (gpm)14gpm # of pickholes/openings1 Total flowrate (gpm)14gpm Duration of spill (minutes)56minutes Total flow (gallons)810gallons  Diameter of pickhole or opening3inches Height of water out of pickhole/opening0.0625inches Flowrate per pickole/opening (gpm)8gpm # of pickholes/openings1 Total flowrate (gpm)8gpm Duration of spill (minutes)56minutes Total flow (gallons)456gallons  Length9feet Width7feet Depth0.5inches0.0417feet  2.63ft320gallons  Length6feet Width8feet Depth0.5inches0.0417feet  2.00ft315gallons 	Spill floerate and volume determination based on flowrate pickhole or opening  Volume of a spill contained in a rectangular area	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		110	It was estimated that approximately 1,340 gallons of sewage backed out of the sewer as a result of the blockage. Approximately 884 gallons of the backup come out of the clean out and structure at 3651 East Whittier Boulevard. The remaining 456 gallons came out of the clean out at 3647 East Whittier Boulevard. The crew was able to establish containment and subsequently the entire back up amount returned to the sewer system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow		On Monday, January 6, 2025 at 8:24 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewage leak at 3651 East Whittier Boulevard (TG 635-C7). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 9:20 PM. The cause of the blockage was attributed to Fats, Oil, and Grease (FOG). All necessary clean-up was then performed.  It was estimated that approximately 1,340 gallons of sewage backed out of the sewer as a result of the blockage. Approximately 884 gallons of the backup come out of the clean out and structure at 3651 East Whittier Boulevard. The remaining 456 gallons came out of the clean out at 3647 East Whittier Boulevard. The crew was able to establish containment and subsequently the entire back up amount returned to the sewer system. 	Adjusted Schedule/Method of Preventive Maintenance; Post Spill CCTV		As part of our quality assurance program, this sewer was inspected using Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow CCTV inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	Pipeline has been placed on quarterly maintenence.	01/20/2025 21:15	On Monday, January 6, 2025 at 8:24 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewage leak at 3651 East Whittier Boulevard (TG 635-C7). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 9:20 PM. The cause of the blockage was attributed to Fats, Oil, and Grease (FOG). All necessary clean-up was then performed.	N	None	01/06/2025 21:20										N												None	
3	3SSO11609	Active	Pacific Grove City CS	Pacific Grove City	898712	1.1	Certified	Daniel Gho	Director		21-JAN-25	21-JAN-25	Monthly Category 3 Spill	8th and Laurel	01/18/2025 08:30	01/18/2025 08:40	01/18/2025 08:20				Spill appeared from Gravity Manhole	36.61803	-121.91206	Manhole			200	Manhole and Roadway	Y	Combined storm and sewer system	200				200	Other (specify below)	Combined sewer and storm system	The sewer reached a storm drain which is connected to an urban diversion system that send flows to the sewer system.  										01/18/2025 09:10	Visual 	Notification and Contact time 	Root Intrusion		Manhole		Vitrified Clay		70	Wet roadway	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Immediately unplugged the pipe and performed a bleach spray down.  	Adjusted Schedule/Method of Preventive Maintenance		Up the frequency of maintenance		01/18/2025 10:00	N/A		N/A	01/18/2025 10:00														N/A	N/A	n/a	N/A	N/A	N/A	N/A	N/A	N/A	
5S	5SSO11001	Active	Modesto CS	Modesto City	898713	1.1	Certified	Robert Englent	Wastewater Collection System Superintendent		31-JAN-25	31-JAN-25	Monthly Category 3 Spill	411 E. Morris Ave.	01/06/2025 12:49	01/06/2025 13:18	01/06/2025 11:39				SSMH004799 in the middle of the street in front of 411 E. Morris Ave.  See Attachments	37.65094	-120.98858	Lower Lateral (Private); Manhole		Privately owned lower lateral for 411 E. Morris Ave. in the street	350	Sewer spilled from a private clean out in the street and flowed West on the North side of E. Morris Ave. to the corner of E. Morris Ave. and Kimble St.  Sewer spilled from MHSS004799 and flowed to the South side of El Morris Ave. The sewer then travelled East for approx. 100 ft. and  West to the corner of E. Morris and Kimble St. and then continued South on Kimble St. for approx. 135 ft. See Attachment 	N	The sewer spill only entered the gutter. Sewer did not reach any storm structures. See Attachment	350				350	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Sewer spilled from a private clean out in the street and flowed West on the North side of E. Morris Ave. to the corner of E. Morris Ave. and Kimble St.  Sewer spilled from MHSS004799 and flowed to the South side of El Morris Ave. The sewer then travelled East for approx. 100 ft. and  West to the corner of E. Morris and Kimble St. and then continued South on Kimble St. for approx. 135 ft. for a total of 625 ft. See Attachment	Y	37.65099	-120.98916	37.65091	-120.98819	37.65077	-120.98916			01/06/2025 13:18	The contained volume estimation method was used. See Attachment	The start time was estimated to be 1139 based on the evaporation rate for a stain near the origin location. When our Customer Service Tech arrived the spill had already stopped, so he used his arrival time of 13:18 as the end time.  See Attachment	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		113	The street, curb and gutter on E. Morris Ave. between Kimble St. and High St. and the East side of Kimble Street for approx. 135 ft. South of E. Morris Ave.  See Attachment	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Sandbags were placed in the gutter to contain the spill. A cleaning crew broke the grease stoppage and cleaned the sewer line and then proceeded to clean the street and approx. 625 ft. of gutter on E. Morris Ave. and Kimble St.	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV; Repaired Facilities or Replaced Defect		Increase cleaning PM frequency to 6 months. ECS to canvas upstream connections that may be contributing to FOG problem.  See Attachment		01/06/2025 17:49	Grease was found to be the main cause of the stoppage and spill.  The CCTV crew did note that they found a hole in the pipe at the location where the blockage was cleared. A repair work order has been created for the hole. 		N/A	01/08/2025 12:34														N/A	Increased cleaning PM to 6 months. ECS to distribute FOG door hangers.	Increased cleaning PM to 6 months.	N/A	CCTV found a hole in the pipe near the location where the stoppage was broken. Repair work order has been made. 	N/A	Increased cleaning PM frequency. Created CCTV PM to inspect line prior to cleaning.  See Attachment	N/A	N/A	
5S	5SSO10985	Active	Lathrop Consolidated Treatment Facility CS	Lathrop City	898718	1.3	Certified	Michael King	Assistant City Manager	22-JAN-25	24-JAN-25	24-JAN-25	Category 2 Spill	Golden Valley & River Islands Parkway ARV	12/26/2024 11:10	12/26/2024 11:25	12/26/2024 11:00	01/21/2025 16:30	25-0307		Spill originated from a single manhole on Golden Valley Parkway. The spill was caused by an ARV failure in the manhole, which filled up the manhole and overflowed into the street (Golden Valley Parkway at River Islands Parkway). 	37.81136	-121.30032	Manhole	N/A	N/A	1430	Spill Boundaries and Extent shown in Attachment 1. Most of the overflow was contained in the sewer manhole where the spill originated from and was able to be vacuumed out by operations staff. A portion of the spill overflowed into the street/gutter, and ultimately the storm drainage conveyance system. From the origination point, the spill extended 8 feet to the east and approximately 36 feet to the south due to vehicle traffic. The spill flowed west 22 feet into the gutter pan. From the origination location, the spill travelled approximately 360 feet south contained in the gutter pan where it entered the drainage conveyance system and travelled approximately 81 feet eastward in a storm drain lateral where the flow ceased once it reached the storm drain mainline manhole. 	Y	Entry location photo shown in Attachment 2. Spill travelled along the gutter pan and entered a storm drain catch basin approximately 360 feet from the spill appearance point. The storm drain catch basin then flows east approximately 81 feet to a storm drain main line. The spill was contained in the storm drain lateral and did not flow past the connection to the mainline. Only 100 gallons was recovered from the storm drain lateral, with the remaining estimated volume being lost to evaporation on the street and gutter. This volume estimate is reported in 10.c as  remaining in the drainage conveyance system .	100	125			1305	Drainage Conveyance System; Other (specify below); Street/Curb and Gutter (2 3)	Majority of the spill was contained in the sewer manhole where the ARV failure occurred and was vacuumed out by operational staff until the valve could be closed.	A portion of the spill overflowed into the street and gutter pan and travelled into a storm drain inlet and was contained in the 18� lateral between the drain inlet and the storm drain mainline manhole.     Note: 1.d./1.e. Lat / Long is the sewer manhole. 1.f./1.g. Lat / Long is the Storm Drain Entry point, and 1.h./1.i. is the final destination point.  An ariel map was made showing the full spill extent and boundaries in Attachment 1.	Y	37.81137	-121.30032	37.81037	-121.30038	37.81037	-121.30006			12/26/2024 14:41	The type of data relied upon was visual flow estimates and volume calculations of the vacuum truck used for spill recovery. Visual estimates of flow rate from the broken ARV (in the sewer manhole) were reported to be approximately 6.5 GPM (Total spill duration of 220 minutes, estimating 1,430 gallons total spilled). The flow out of the manhole, onto the street/curb and gutter was estimated to be less at approximately 2.5 GPM (duration of approximately 90 minutes, estimating 225 gallons total. The volume recovered in the vacuum truck was estimated to be 1,305 gallons by estimating the level in the tank. 100 gallons was estimated to be recovered from the storm drain lateral through visual observations and tank levels. The remaining volume on the street / curb and gutter (125 gallons) is assumed to be lost to evaporation.	Visual observations by operational staff and the reporting individual. Spill overflow from the manhole was minimal at the time of the initial report to City Operational staff and had not increased significantly upon arrival by staff. Spill end time was determined to be when the broken valve was closed and the leak stopped. 	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure		Air Relief Valve (ARV)/ Blow-Off Valve (BOV); Force Main; Manhole	System failure was at the ARV connection to the sewer force main, located in a sewer manhole.	Polyvinyl Chloride (PVC)		25	Spill impact was minimal. Traffic control was implemented quickly which limited the spill travel length on the road. The spill flowed into the gutter and was contained in a storm drain lateral. Of the total spill volume, an estimated 225 gallons ended up on the street / curb and gutter, and storm drain conveyance system. Only 100 gallons was estimated to reach a storm drain lateral, which was fully recovered. It is estimated that 125 gallons was lost to evaporation on the street / curb and gutter.	N	Cleaned Up (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Spill was recovered from sewer manhole and storm drain lateral.	The storm pump station downstream was shut off as an immediate containment method. A vacuum truck was dispatched to begin recovering the spill from the manhole until the valve to the ARV could be shut-off.	Added Sewer to Preventive Maintenance Program; Repaired Facilities or Replaced Defect		Spill was caused due to a failure on the Air Relief Valve. After investigating, it was determined that the ARV location was not on the routine inspection list. The corrective action taken was to add the missing ARV location to the routine list. Additionally, a full replacement of the ARV will be scheduled within the next two weeks, with work being anticipated to be accomplished within the next 30 days.	The valve location will be added to the weekly inspection list by the 24th and routine inspections will begin by the week of the 31st.	12/26/2024 17:00	The spill was caused by a failed ARV. Failure occurred at the base of the ARV. The ARV will be fully rebuilt, and an additional blow-off valve will be added. During investigation, it was discovered that the failed ARV had not been included on the routine maintenance / inspection list. Operations staff will be adding the missing ARV to the inspection list and will begin weekly inspections the following week (by January 31st). Initial volume estimates (for spill reporting category) were low due to only estimating the volume that ended up in the street / gutter. When staff reviewed the data for preparation of the spill report, it was determined that a larger volume exited the system but remained in the manhole and immediately vacuumed out. As such, the spill was not identified to be a higher category spill until the date of the draft report. 	N												N													
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	898720	1.2	Certified	John J. Hough	San Dist. Superintendent	22-JAN-25	30-JAN-25	30-JAN-25	Category 1 Spill	354714	01/17/2025 15:43	01/17/2025 16:47	01/17/2025 07:00				See Attached Spill map with Photos.	38.6698	-121.3043	Lateral Clean Out (Public)			177	See Attached Spill Map with Photos	Y	See Attached Spill map with Photos.	29	0	See Attached Spill map with Photos	141	176	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		See attached Spill Map with Photos.	Y	38.6698	-121.3043	38.6697	-121.3046	38.6689	-121.3062	38.6688	-121.3085	01/17/2025 16:47	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Other (specify below)	Pipe Structural Problem / Failure - Collapsed Pipe	Lower Lateral		Vitrified Clay		58	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified Sacramento County Water Resources Drainage Department.	See Attached Description of Spill Event	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		SacSewer inspected the lower lateral with CCTV on January 17, 2025. Based on the findings, SacSewer repaired the lower lateral on January 27, 2025.	SacSewer repaired the lower lateral on January 27, 2025.	01/18/2025 00:00	See Attached Description of Spill Event	N			Coyle Creek	Stream/Creek		Earthen creek with stagnant flows.	No observed impacts to aquatic life	Other (specify below)	No public access impact. Posted health warning signs.	N/A	0	N	N												
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	898730	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2		27-JAN-25	27-JAN-25	Monthly Category 3 Spill	1633 87th Ave.	01/16/2025 11:00	01/16/2025 11:30	01/16/2025 10:00				Sewage coming out from private clean out due to main being plugged.	37.75285	-122.17368	Lateral Clean Out (Private)			306	Sewage coming out from private clean out due to main being plugged. Spill flowed down into driveway, curb, and gutter. Sewage spill was captured and vacuumed by vacuum truck.	N						304	Street/Curb and Gutter (2 3)		Sewage coming out from private clean out due to main being plugged. Spill flowed down into driveway, curb, and gutter. Sewage spill was captured and vacuumed by vacuum truck.	Y	37.75207	-122.17512							01/16/2025 12:30	Overflow estimation volumes:  Soil: 3'L x 2'W x .17'D x 7.48-gal x .1875 =2 gallons lost, soaked into the soil. Driveway: 12'L x 10'W x .03'D x 7.48-gal = 26 gallons. Curb and gutter: 466'L x 1'W x .08'D x 7.48-gal = 278 gallons. Total spill: 2 + 26 + 278 = 306 gallons. Recovered: 306 - 2 = 304 gallons. Lost in soil: 306 - 304 = 2 gallons.	Start time was based on eyewitness account. The end time was based on responding sewer crew restoring the flow in the mainline. 	Debris-wipes/Non-disposables		Gravity Mainline		Vitrified Clay		125	Sewage coming out from private clean out due to main being plugged. Spill flowed down into driveway, curb, and gutter. Sewage spill was captured and vacuumed by vacuum truck.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Washed down the affected spill area and recovered the sewage.	Set up vacuum truck downstream at gutter line with sandbags. Staff opened line, clean and washed down impacted area, vacuuming sewage down from the spill affected areas.	Added Sewer to Preventive Maintenance Program		Add to preventative maintenance program.		01/16/2025 14:00	Responding sewer crew found debris/wipes to had been cause for the mainline to be plugged. 		Yes, needs to be televised to determine condition of pipe.	01/29/2025 10:00														N/A	Add to 6-month hydro high preventative maintenance program. W.O. # 1588516.	Add to 6-month hydro high preventative maintenance program. W.O. # 1588516.	N/A	CCTV inspection W.O. #1588036 has been created. Inspection completion to be before 1/29/25.	N/A	Add to 6-month hydro high preventative maintenance program. W.O. # 1588516.	Set up vacuum truck downstream at gutter line with sandbags. Staff opened line, clean and washed down impacted area, vacuuming sewage down the street at gutter line.	Yes, needs to be televised to determine condition of pipe.	
4	4SSO11423	Active	Long Beach Water Dept. CS (SSO program)	Long Beach City, Water Dept	898736	1.3	Certified	Diana Tang	Assistant General Manager	23-JAN-25	03-FEB-25	03-FEB-25	Category 2 Spill	1242 E. 4th Street Long Beach CA.	01/19/2025 11:56	01/19/2025 14:05	01/19/2025 11:56	01/19/2025 18:42	25-0277		The spill originated from a city sewer manhole at 1242 E. 4th Street. K09-SMH-029.	33.77142	-118.17539	Manhole		N/A	1690	Sewage overflowed from a city sewer manhole and traveled down the alley onto the street curb and gutter before entering the Long Beach storm drain catch basin. The sewage flowed through the storm drainpipe, where Ocean Blue Environmental Contractors contained and fully recovered it at a dry manhole.	Y	Concrete storm water catch basin	454	0			1690	Drainage Conveyance System; Street/Curb and Gutter (2 3)		The spill exited the system and traveled down the alley onto the street curb and gutter and entered the Long Beach storm drain catch basin and into the storm drain pipe. It was contained and fully recovered at a storm drain manhole several blocks away.	Y	33.76664	-118.18731							01/19/2025 14:45	Based on our original calculations, the spill was estimated at 2,510 gallons using a spill time of 3 hours and 49 minutes. However, field staff miscalculated the spill duration. The actual spill time has been updated to 2 hours and 49 minutes (169 minutes), resulting in an updated spill volume of 1,690 gallons. The spill volume on the street was calculated using the formula (Length x Width x Depth) x 7.48. The dimensions were as follows:  Alley: 295 ft x 2 ft x 2 inches (0.166 ft) x 7.48 = 732.59 gallons Street curb and gutter: 1,615 ft x 0.5 ft x 1 inch (0.0833 ft) x 7.48 = 503.34 gallons Adding these together: 732.59 + 503.34 = 1,235.93 gallons on land.  Subtracting the total from the estimated spill volume: 1,690 gallons - 1,235.93 gallons = an estimated 454.07 gallons went into the storm drain.	The Long Beach Fire Department notified Utilities at 11:56 AM about water in the alley. Water Customer Service confirmed it was a sewer spill and contacted Sewer Operations at 1:22 PM. The sewer crew arrived at 2:05 PM and found the spill had spread into the alley, curb, gutter, and storm drain. We believe the spill started around the time it was reported by LB Fire, as it was only at the base of the alley when they arrived, suggesting it began shortly before it was reported to LBU. We used 11:56 AM (when Utilities was first notified) to calculate the spill duration, estimating 10 gallons per minute for 169 minutes = 1690 Gallons. To estimate the volume in the storm drain, we subtracted the street volume from the total spill volume, which was 454.07 gallons. We successfully recovered all of the spill by locating a dry manhole and flushing with water and vacuuming it up. 	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		91	The  Impact on the residents in the area was minimal. The affected area on the street and Alley was secured.  Our Crews Promptly addressed the issue, effectively containing and recovering the affected area.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		1. Spill Containment: A sewage overflow from the city sewer manhole resulted in a spill of approximately 1690 gallons. To contain the spill, barriers and sandbags were strategically placed to prevent it from spreading beyond the affected area. Ocean Blue Environmental Contractors swiftly implemented containment measures at a storm drain manhole to ensure the spill did not progress further.  2. Cleanup Efforts: Ocean Blue Environmental carried out extensive cleanup operations using specialized equipment, including:  High-pressure washing systems to decontaminate surfaces Industrial vacuum trucks to recover sewage The cleanup successfully recovered 1235.93 gallons of sewage from the street curb and gutter, with an additional 454.07 gallons recovered from the storm drain system. All sewage was recovered and properly handled.	Inspected Sewer Using CCTV to Determine Cause		The pipe segment will be placed on our repeat hotspot books for more frequent attention. 	Spill Discovery & Notification: The spill was initially reported by the Long Beach Fire Department at 11:56 AM on the day of the incident. This was followed by immediate action to investigate the cause and begin containment.  Containment & Recovery: Ocean Blue Environmental Contractors implemented containment measures at the storm drain manhole approximately eight blocks downstream, ensuring the spill did not spread further. Full recovery efforts began immediately after containment, with 1235.93 gallons recovered from the street curb and gutter and 454.07 gallons from the storm drain system.  Pipeline CCTV Inspections: The pipeline CCTV inspections were completed on 1/21/2025. The inspection focused on assessing the condition of the sewer system and identifying any underlying issues such as potential blockages or problems that could lead to future spills.	01/19/2025 22:20	A post-CCTV inspection of the mainline was performed, revealing significant grease buildup in the city mainline due to residential grease. Our cleaning crews used hydro-jetting to clear the sewer main and remove the accumulated grease. The CCTV inspection confirmed that grease deposits, particularly heavy in the residential area connections, were the primary cause of the sewer mainline stoppage.	N	N/A											N												N/A	
2	2SSO10105	Active	Central Contra Costa Sd CS	Central Contra Costa Sanitary District	898738	1.1	Certified	Paul Seitz	CSO Division Manager		03-FEB-25	03-FEB-25	Monthly Category 3 Spill	52 Oak Rd Orinda	01/15/2025 16:15	01/15/2025 16:52	01/15/2025 16:00				Spill discharged from 73B2-RI40	37.85895	-122.16688	Other Sewer System Structure	Rodding inlet		64	Spill travelled down an unpaved suface aprox. 43' from the rodding inlet.	N						15	Unpaved Surface		A unpaved, undeveloped area behind the property of the reporting party.	Y	37.85908	-122.16683							01/15/2025 17:47	By using the area method, we measured the area of the spill and estimated the spill to be 64 gallons	By interviewing the reporting party, they gave us their best estimate on when the spill started.	Root Intrusion		Gravity Mainline		Vitrified Clay		68	No negative impact was observed from this spill	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Upon arrival, this spill was not activly discharging so containement was not an issue at that time. However, there were obvous signs of a spill. Our crew relieved the plug and we returned the next morning during normal working hours and fully cleaned-up the spill area.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Review CCTV in our bi-weekly Operations meeting and changed cleaning method due to our findings.		01/16/2025 10:30	Verified by CCTV, evedence of root intusion at spot of plug		None	01/16/2025 10:30														N/A	Changed the cleaning method.	Yes	No	Inspected with CCTV	N/A	In our bi-weekly Operations meeting minutes	N/A	None	
2	2SSO10104	Active	Ccsf - San Francisco Airport CS	CCSF - San Francisco Airport	898743	1.2	Certified	Jennifer Acton	Director of Maintenance	23-JAN-25	03-FEB-25	03-FEB-25	Category 2 Spill	Eastside of Boarding Area B between Gate B3 - B12	01/19/2025 11:45	01/19/2025 11:50	01/19/2025 11:30				The sewage spill originated and overflowed from three sanitary sewer manholes located on the ramp level east of Boarding Area B.  The three manholes are located between Gates B3 and B12.	37.613929	-122.384462	Manhole		Sewage appeared from three sanitary sewer manhole locations in the airfield ramp operations area.	1589	Sewage overflowed from three sanitary sewer manholes located between Gates B3 and B12, flowed down gradient on the paved airfield ramp surface, and affected four downgradient storm drain catch basins near airfield taxilane Y.	Y	Sewage affected four storm drain catch basins located within airfield taxilanes  near Boarding Area B.	471	0			1589	Drainage Conveyance System; Paved Surface		Sewage overflowed from three sanitary sewer manholes and traveled on the airfield operations ramp paved surface, flowed downgradient and affected four storm drain catch basins located within aircraft taxilanes.	Y	37.613394	-122.38445							01/19/2025 14:10	Spill volume estimated by Airport Spill Team who responded to the incident.  Flow rates from sewer manhole pick holes was estimated using flow estimation photo reference material, plus time data collected on scene.  Incident photos of spill area and impacted paved surfaces were used to perform area/volume calculations to estimate volume of sewage impacting paved surfaces and the affected storm drain catch basins.	Spill times estimated using information provided by Airport personnel responding to the spill incident.	Debris-General; Fats, Oil and Grease (FOG)		Gravity Mainline		Other (specify below)	HDPE	3	Spill overflowed from three sanitary sewer manholes and impacted paved surface areas of the airfield operations ramp level gates , vehicle service roads, and aircraft taxilanes.  Sewage flowed downgradient and affected four storm drain catch basins.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Airfield Operations set up barricades to prevent vehicles from traveling through the spill area.  Airport Police applied absorbent to protect storm drain catch basins.  Airport Treatment Plant was notified and requested to keep downstream storm drain pump station offline.  Airport Plumbing Shop mobilized vactor truck and crew to hydrojet the sewer line, clear blockage, and restore flow to the sanitary sewer system.  Scrubbing contractors mobilized and cleaned the impacted paved surfaces.  Due to the access constraints to access the affected storm drain catch basins located in the airfield taxilanes, Airport Plumbers returned on 1/27/25 and operated the vactor truck to rinse out and vacuum out the sewage and rinsewater from affected storm drain catch basins.  Plumbers noted that they observed standing sewage below the outlet pipes in the catch basins.  Sewage did not exit the catch basin or affect any downstream pipeline.  All waste was captured and returned to the sanitary sewer system	Other (specify below)	Upstream tenant grease traps were inspected by the Airport to determine if grease trap service frequencies were adequate.  Grease trap service for one tenant has been increased.   FOG inspections were performed at upstream food service establishments to make sure FOG mgmt BMPs are being followed. The Airport will continue to monitor and inspect grease traps in the area	Upstream tenant grease traps were inspected by the Airport to determine if grease trap service frequencies were adequate.  Grease trap service for one tenant has been increased.   FOG inspections were performed at upstream food service establishments to make sure FOG mgmt BMPs are being followed. The Airport will continue to monitor and inspect grease traps in the area. 	NA	01/27/2025 02:30	Airport Plumbing Shop inspections determined the blockage was caused by grease deposition and general debris.	N												N													
2	2SSO10100	Active	Calera Crk Wtr Recycling Plant CS	City of Pacifica	898744	1.1	Certified	Eddie Pastrano	Collection System Manager		23-JAN-25	23-JAN-25	Monthly Category 3 Spill	901 Fassler Ave	12/20/2024 10:20	12/20/2024 10:24	12/20/2024 10:20				The spill originated on the side of a cliff on Fassler Ave in the planter area. Manhole shifted do to the whole bank shifting. Manhole had a root growing in between the barrel causing a blockage. 	37.60078	-122.4878	Manhole			170	Photo submitted. Dirt washed down the bank onto the sidewalk and curb and gutter.	Y	Spill was recovered at a down stream storm drain box with a our Vac Con truck. 	170				170	Drainage Conveyance System; Other (specify below)	Storm drain box, Recovered spill.	Spill flowed to storm drain box 40 Ft. away. 	Y	37.60078	-122.4878							12/20/2024 10:54	The spill was at 5 GPM according to the San Diego spill chart. The spill lasted lasted for 34 mins. times 5 GPM equals 170 gallons total.	Water department noticed small leak at 10:20 am and spill ended at 10:54 am 34 minutes spill duration at 5GPM= 170GPM.	Root Intrusion		Manhole		Polyvinyl Chloride (PVC)		10	NO IMPACT	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Restored flow, cleaned sidewalk, cut out roots from Manhole, Attached photos.	Post Spill CCTV; Repaired Facilities or Replaced Defect		Eliminated root intrusion, sealed barrel, installed retaining wall to keep dirt from shifting over the manhole.  		12/20/2024 10:54	Water department call us immediately when they noticed small leak. Water crews travel in and our of their facility all day long. As they leave their facility they are facing the location where the spill originated. Bank slid down and covered the manhole with dirt. Barrel shifted and allowed roots to infiltrate. 		No	12/20/2024 10:54														N/A	Eliminated root intrusion, sealed barrel, installed retaining wall to keep dirt from shifting over the manhole.  	Adjusted schedule to bring up this line segment sooner to check barrel and confirm ground is stable.	N/A	Completed	N/A	Document located in our new CMMS (MMS)- repair crew installed retaining wall. 	N/A	No	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	898747	1.1	Certified	Kent Vian	Asst. Deputy Director		13-FEB-25	13-FEB-25	Monthly Category 3 Spill	NOT-40201198306 1014 TOURMALINE ST.	01/21/2025 22:16	01/21/2025 22:30	01/21/2025 22:35				SPILL ORIGINATED DUE TO GREASE BLOCKAGE IN  EQUIPMENT NUMBER 10381635 AND BACKED UP INTO PRIVATE LATERAL CONNECTED TO 1014 TOURMALINE ST.	32.80789	-117.25469	Lower Lateral (Private)	N/A	N/A	235	THE DIRECTION OF THE 8  SEWER WAS HEADING WEST WITH A GREASE  BLOCKAGE IN THE 290' STRETCH OF PVC SEWER MAIN AND BACKED UP IN THE SEWER LATERAL BELONGING TO 1014 TOURMALINE ST WHERE IT SETTLED.	N	N/A	0				0	Building or Structure	N/A	THE DIRECTION OF THE 8  SEWER WAS HEADING WEST WITH A GREASE  BLOCKAGE IN THE 290' STRETCH OF PVC SEWER MAIN AND BACKED UP IN THE SEWER LATERAL BELONGING TO 1014 TOURMALINE ST WHERE IT SETTLED.	Y	32.80789	-117.25469							01/21/2025 23:03	THE SPILL START WAS DETERMINED WHEN THE CONSUMER CALLED TO REPORT THE SPILL AND THE END TIME WAS WHEN THE CREWS VISUALLY CONFIRMED THE SPILL STOPPED.	THE SPILL WAS CALCULATED USING THE VISUAL CALCULATED METHOD.	Fats, Oil and Grease (FOG)	N/A	Gravity Mainline		Polyvinyl Chloride (PVC)	N/A	35	THE SPILL BACKED UP AND IMPACTED THE TWO PROPERTIES INSIDE OF 1014 TOURMALINE ST.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow	N/A	CREWS SET UP CONTAINMENT RELIEVED STOPPAGE TRACKED FINAL DESTINATION FLUSHED AND CCTV'D 2UP AND 2DOWN REFERED TO SSO INVESTIGATOR TO ACCESS DAMAGE TO PRIVATE PROPERTY CLEANED UP PRIVATE PROPERTY.	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect	N/A	CHANGE MAINS TO 24M FREQUENCY, INSPECT GREASE TRAPS EVERY THREE MOUNTHS UNTILL FUTHER NOTICE. 		01/22/2025 14:30	THERE WAS A BLOCKAGE IN THE 290' STRETCH OF 8  PVC SEWER MAIN.		NONE	01/22/2025 14:30														UNKNOWN	NSPECT GREASE TRAPS EVERY THREE MOUNTHS UNTILL FUTHER NOTICE. 	CHANGE MAINS TO 24M FREQUENCY	NONE 	NONE	NONE	SEE DOC TOURMALINE 	NONE	NONE	
5S	5SSO10993	Active	Manteca CS	Manteca City	898748	1.5	Certified	Derek Perry	Collections Supervisor 		09-APR-25	09-APR-25	Monthly Category 3 Spill	925 E Alameda	01/19/2025 11:14	01/19/2025 12:03	01/19/2025 11:10				See Attached	37.80434	-121.20465	Gravity Mainline; Manhole			219	Paved surface, gutter pan storm man hole sump.	Y	Gutter drain inlet. Storm drain gravity main	217				219	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		paved surface and 50ft of gutter pan. Inside 254' of storm line ending in MH sump										01/19/2025 12:23	Duration and Flow rate Comparison method. 3gal/min x 73min	When spill was reported. Ended when crew cleared blockage	Debris-Rags		Gravity Mainline		Vitrified Clay		60	No impact	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Crew arrived on scene. spill not. and bagged in front of DI. located dry sewer man hole to jet and clear blockage. Cleared blockage, restoring flow to sewer gravity main. Cleaned up surface spill with combo truck. followed storm drain gravity main to MH sump were spill was contained . Jetted and vacuumed storm system.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Cut out roots present at pipe joints. Put line segment on root foaming treatment list.		01/21/2025 14:15	NA		None	01/27/2025 15:00														None	Cut out roots present at pipe joints. Put line segment on root foaming treatment list.	NA	none	NA	NA	Attached	None	None	
8	8SSO10566	Active	Costa Mesa SD CS	Costa Mesa Sanitary District	898749	1.1	Certified	John Gonzalez	Wastewater Maintenance Manager		23-JAN-25	23-JAN-25	Category 2 Spill	Westbluff pump station	01/20/2025 19:40	01/20/2025 08:45	01/19/2025 22:42	01/21/2025 23:00	25-0290		Sewer Spill Incident Report Incident Location: 1059 Westward LN, near the pump station. Description of Incident: Responding staff were notified of a manhole spilling sewer. Upon arrival, they observed sewage emanating from the manhole adjacent to the pump station. An inspection of the pump station revealed that both pumps had been tripped offline. Corrective Action Taken: �The pumps were reset and brought back online. �Once the pumps resumed operation, the sewer stopped spilling from the manhole. Spill Impact: �The spilled sewage entered a storm drain catch basin near the spilling manhole. �Further investigation led staff to the outlet of the storm drain located approximately 300 feet south in the northern area of Canyon Park. �The spill was contained in a small gully within Canyon Park, confined by the natural surroundings. 	33.65046	-117.94342	Manhole		N/A	3015	Spill was contained in a small gully and confined by the natural surroundings. 	Y	It was a small storm drainage system that deposited into a small gully in the park.	3015	0			3015	Drainage Conveyance System		Small gully in the northern area of Canyon Park Costa Mesa. 33.64951N  117.94349W 	Y	33.64951	117.94349							01/20/2025 20:50	Information from SCADA to determine when pumps failed Pumping logs to determine how much sewage is typically pumped during that time when pumps were offline. Sewer System design specifications to determine how much flow was actually lost. 	System alarms and responders account of events.	Pump Station Failure - Controls; Pump Station Failure - Power		Manhole		Vitrified Clay		35	little to no impact all sewage was contain by the natural surroundings and completely recovered.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned All Spill to Sanitary Sewer System		First responder determined problem and stopped spill by putting pumps back online. the storm drain entrance was blocked incase pumps went back offline as a precaution. spill cleanup started the next morning at first light. we used Vacuum trucks to remove sewage and flush water.	Other (specify below)	Spill was caused by the pumps being tripped off and the alarm setting was in test mode so our stand by was never notified. so the alarm setting were switched back to normal settings.	Will look into installing some sort of power filter because we believe the pump VFD's were knock offline due to a power spike. We will periodically check to ensure alarm settings are in the correct configuration also, we are going to install a secondary failsafe measure by installing smart covers at all pump stations. This will start immediately. 	We want to have all new smart meters installed by July 1st.	01/21/2025 16:36	Determined that a power surge may have been the reason the pump VFD's went offline.	N												N													
7	7SSO10532	Active	Niland CS	Niland SD	898752	1.3	Certified	John Gay 	Public Works Director		05-FEB-25	05-FEB-25	Monthly Category 3 Spill	Niland CSD - Manhole #83 6th Street West of Niland Ave.	02/12/2024 19:10	02/12/2024 20:10	02/12/2024 18:50				See ATTACHMENT A consisting of a Google Image depicting the spill approximate perimeter dimensions, the spill approximate area, the orientation of the photos taken at the field, and the approximate coordinates of the sewer manhole cover where the spill was coming out to the street surface.  This Attachment A also includes night photographs of the spill manhole and a partial extent of the spill reaching the dirt shoulder adjacent north to the street pavement (6th Street) and a photograph depicting, and a day photograph depicting the spill area that was cleaned and disinfected	33.23577	-115.51543	Manhole			270	See Attachment A same as the one on Item 6 above mentioned	N						270	Paved Surface; Unpaved Surface		The raw sewage collected from the spill was conveyed to the next sewer manhole downstream. The soils removed by vacuum, where disposed in the Niland WWTP.										02/13/2024 00:45	The Spill Volume Estimation were calculated as follows: Area = +- 875 SF (Google Image Polygon Area) Spill Depth = +- 1/2 IN (0.041 FT) Volume in CF = Area x Depth = +- 875 SF x +- 0.041 FT = +- 35.87 CF Volume in Gallons = +-35.87 CF x 7.481 Gallons / 1 CF= +- 268.38 Gallons  Volume = +- 270 Gallons	The estimations of the spill start time, and the spill end time are as reported by PERC-WATER Corporation on an  Overflow Event  Letter dated 02-13-24 (see Attachment A).	Debris-wipes/Non-disposables		Gravity Mainline; Manhole		Vitrified Clay		75	The spill impact is described as follows: 1. The spill begun late afternoon, spill cleaning operations were conducted during night hours, no traffic was impacted during these times  2. The spill occurred in front of a residential unit, apparently there was no complaint(s) from the adjacent resident(s)  3. The spill impacted an approximate area of 875 SF along the dirt shoulder adjacent north to the street pavement of Sixth Street.   4. The dirt shoulder area that was impacted by the spill was removed and disinfected at the end of the cleanup operations	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Based on PERC-WATER Corporation  Overflow Event  Letter dated 02-13-24 (see Attachment B), in summary the response activities were as follows:  a. ICDPW got notified by Resident or other  b. ICDPW notified PERC-WATER Corporation (WWTP and Sewer Spill Emergencies Services provider)  c. ICDPW called ROVE Engineering to remove the blockage inside the sewer line.  d. PERC-WATER called the State Office of Emergency Services (OES) to inform them of the spill event and obtained an Incident #24-0904 from OES  e. PERC-WATER called & coordinated ANCON Marine Services, a Haz-Mat Company that vacuumed & dispose of the spill to a manhole downstream  f. PERC-WATER coordinated with ROVE Engineering during the removal of the blockage inside sewer line with a High-Pressure Water Jet equipment  g. ANCON Marine Services vacuumed, removed and disposed the soils surface impacted by the spill, disinfected the spill area by spraying it with sodium hypochlorite (12.5% strength) 	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Other (specify below)	Sewer lines will be Cleaned & Inspected through the PMP (see item 20.d)          	In response to a Notice of Violation dated 11-26-24 from the Regional Water Board Enforcement Unit, the ICDPW is taking the immediate corrective-preventive actions:  1. Prepare and submit this Spill Report (aka SSO-1-FEB24) in the CIWQS  2. Prepare a Spill Emergency Response Plan (SERP) to include: * Notification to Cal OES * Spills clean-up and documentation * Monitoring & reporting pursuant to Attachment E1 - of the New ORDER 2022-0103-DWQ and according to the Spill Category 1, 2 or 3 * Collection of Spills Information for futures spills prevention/reduction * Post Spill assessment of spill response activities * Additional Activities as listed in Section 6. Spill Emergency Response Plan, Attachment D of the New ORDER 2022-0103-DWQ.  3. Preparation of a Sewer Sistem Management Plan (SSMP) according to the Ner ORDER 2022-0103-DWQ, consisting of various elements, including a SERP  4. The design, development & implementation of a GIS SYSTEM to anticipate, prevent or reduce sewer spills		02/13/2024 00:45	Same as described on Item 20.d.8		There were no  Ongoing  Investigations efforts after the spill occurred, other than the specific activities such as - but not limited to: collection of spill samples for LAB Tests, collection soils samples before and/or after the spill for LAB Tests, dissection of sewer line blockage materials and/or its components, and other activities to be included in the Spill Emergency Response Plan and on the Preventive Maintenance Plan (PMP).	10/30/2025 16:30														There was no enforcement action taken against an illicit discharge in response to this spill, since there were none illicit discharges known at that time	BACKGROUND Niland Sanitation District (Niland SD) dissolute through LAFCO on 07-19-2018, and the Niland County Sanitation District (aka Niland CSD) was formed. The Niland CSD is 1 of 4 Sanitary Services Areas that are overseen by the Imperial County Department of Public Works (ICDPW).  PMP ICDPW is preparing a Preventive Maintenance Program (PMP) for Cleaning & Inspecting the Niland Sewer Collection System (SCS), consisting of - but not limited to:   * Visual inspections of the sewer manholes, and of the inspections of sewer lines segments by a close caption video method (CCTV) at least once a year or two years once sewer lines are cleaned.   * Cleaning the sewer lines with a �Water Gravity Flow� Method (aka G-Flow) at a minimum, and/or by using a High-Pressure Water Jet Method at Light, Medium, or Heavy intensity rates, contingent upon the type of potential blockage materials or sediments in the sewer lines as shown by the CCTV inspections.  * Other	1. SERP Completion on or about 02-21-25  2. PMP Completion on or about 03-21-25  3. SSMP Completion on or about 05-16-25  4. GIS SYSTEM Completion a year from its approval by the ICDPW and its adoption by the State/Regional Water Boards tentatively to take place on or about 07-31-25	With the assistance of the Visual Inspections and CCTV of the Sewer Collection System (SCS) an Improvements Priorities Inventory (IPI) will be prepared for the different circuits and/or segments of the SCS.  The IPI will identify and prioritize the sewer manholes repair and/or replacements, sewer lines repair and/or replacements, and/or the sewer lines rehabilitation with lining (polyethene or equivalent). 	The Sewer Spill Respondents: PERC-WATER + ROVE Engineering + ANCON Marine Services, have identified and reported to the ICDPW, that there are some Sewer Manholes needing repair and/or replacement.  There are Sewer Manholes that their internal cylinder / cone perimeter structure is made of clay bricks, with the potential of brick portions falling to the manhole bottom and obstructing or blocking the sewer flow.  There are Sewer Manholes with broken or missing the Internal Concrete Rings (ICR) that supports the MH Rim & Cover.  There are Sewer Manholes with broken or missing the External Concrete Rings that surrounds and fixes the MH Rim & Cover at the roadway surface.  	The Capital Improvements Program (CIP) is a required ELEMENT of the SSMP, hence all those items in the Improvements Priorities Inventory (IPI) as mentioned on item 20.d.2 above, will be included in the CIP.	At this time there is no documentation available to verify any immediately implementation for system modifications and operating/maintenance modifications, except for what it is being proposed on Items 20.d.1, 20.d.2, 20.d.3, and 20.d.4 above mentioned.  Yet, there is one component of an  Immediate Correction Action  that the ICDPW is to accomplish through an  On-Going  Construction Project, which includes the replacement of two sewer line sections crossing irrigation facilities, and the interior lining (polyethylene or equivalent) of +- 5,484 LF of the  Main Collector  sewer lines convey sewage to the Niland CSD Wastewater Treatment Plant.  Said  Main Collector  consisting of 1 segment (+- 2,459 LF) along SR-11 (from Noffsinger Road to Alcott Road) and 1 segment (+- 3,025 LF) along Alcott Road (from SR-111) to the Niland Wastewater Treatment Plant.	The Spill Response activities will be revised, modified and  fine-tuned  during the preparation of the Spill Emergency Response Plan (SERP), as indicated on Item 20.b above mentioned.	There were no  Ongoing  Investigations efforts after the spill occurred, other than the specific activities such as - but not limited to: collection of spill samples for LAB Tests, collection soils samples before and/or after the spill for LAB Tests, dissection of sewer line blockage materials and/or its components, and other activities to be included in the Spill Emergency Response Plan and on the Preventive Maintenance Plan (PMP).	
7	7SSO20054	Active	Niland CS	Niland SD	898752	1.3	Certified	John Gay 	Public Works Director		05-FEB-25	05-FEB-25	Monthly Category 3 Spill	Niland CSD - Manhole #83 6th Street West of Niland Ave.	02/12/2024 19:10	02/12/2024 20:10	02/12/2024 18:50				See ATTACHMENT A consisting of a Google Image depicting the spill approximate perimeter dimensions, the spill approximate area, the orientation of the photos taken at the field, and the approximate coordinates of the sewer manhole cover where the spill was coming out to the street surface.  This Attachment A also includes night photographs of the spill manhole and a partial extent of the spill reaching the dirt shoulder adjacent north to the street pavement (6th Street) and a photograph depicting, and a day photograph depicting the spill area that was cleaned and disinfected	33.23577	-115.51543	Manhole			270	See Attachment A same as the one on Item 6 above mentioned	N						270	Paved Surface; Unpaved Surface		The raw sewage collected from the spill was conveyed to the next sewer manhole downstream. The soils removed by vacuum, where disposed in the Niland WWTP.										02/13/2024 00:45	The Spill Volume Estimation were calculated as follows: Area = +- 875 SF (Google Image Polygon Area) Spill Depth = +- 1/2 IN (0.041 FT) Volume in CF = Area x Depth = +- 875 SF x +- 0.041 FT = +- 35.87 CF Volume in Gallons = +-35.87 CF x 7.481 Gallons / 1 CF= +- 268.38 Gallons  Volume = +- 270 Gallons	The estimations of the spill start time, and the spill end time are as reported by PERC-WATER Corporation on an  Overflow Event  Letter dated 02-13-24 (see Attachment A).	Debris-wipes/Non-disposables		Gravity Mainline; Manhole		Vitrified Clay		75	The spill impact is described as follows: 1. The spill begun late afternoon, spill cleaning operations were conducted during night hours, no traffic was impacted during these times  2. The spill occurred in front of a residential unit, apparently there was no complaint(s) from the adjacent resident(s)  3. The spill impacted an approximate area of 875 SF along the dirt shoulder adjacent north to the street pavement of Sixth Street.   4. The dirt shoulder area that was impacted by the spill was removed and disinfected at the end of the cleanup operations	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Based on PERC-WATER Corporation  Overflow Event  Letter dated 02-13-24 (see Attachment B), in summary the response activities were as follows:  a. ICDPW got notified by Resident or other  b. ICDPW notified PERC-WATER Corporation (WWTP and Sewer Spill Emergencies Services provider)  c. ICDPW called ROVE Engineering to remove the blockage inside the sewer line.  d. PERC-WATER called the State Office of Emergency Services (OES) to inform them of the spill event and obtained an Incident #24-0904 from OES  e. PERC-WATER called & coordinated ANCON Marine Services, a Haz-Mat Company that vacuumed & dispose of the spill to a manhole downstream  f. PERC-WATER coordinated with ROVE Engineering during the removal of the blockage inside sewer line with a High-Pressure Water Jet equipment  g. ANCON Marine Services vacuumed, removed and disposed the soils surface impacted by the spill, disinfected the spill area by spraying it with sodium hypochlorite (12.5% strength) 	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Other (specify below)	Sewer lines will be Cleaned & Inspected through the PMP (see item 20.d)          	In response to a Notice of Violation dated 11-26-24 from the Regional Water Board Enforcement Unit, the ICDPW is taking the immediate corrective-preventive actions:  1. Prepare and submit this Spill Report (aka SSO-1-FEB24) in the CIWQS  2. Prepare a Spill Emergency Response Plan (SERP) to include: * Notification to Cal OES * Spills clean-up and documentation * Monitoring & reporting pursuant to Attachment E1 - of the New ORDER 2022-0103-DWQ and according to the Spill Category 1, 2 or 3 * Collection of Spills Information for futures spills prevention/reduction * Post Spill assessment of spill response activities * Additional Activities as listed in Section 6. Spill Emergency Response Plan, Attachment D of the New ORDER 2022-0103-DWQ.  3. Preparation of a Sewer Sistem Management Plan (SSMP) according to the Ner ORDER 2022-0103-DWQ, consisting of various elements, including a SERP  4. The design, development & implementation of a GIS SYSTEM to anticipate, prevent or reduce sewer spills		02/13/2024 00:45	Same as described on Item 20.d.8		There were no  Ongoing  Investigations efforts after the spill occurred, other than the specific activities such as - but not limited to: collection of spill samples for LAB Tests, collection soils samples before and/or after the spill for LAB Tests, dissection of sewer line blockage materials and/or its components, and other activities to be included in the Spill Emergency Response Plan and on the Preventive Maintenance Plan (PMP).	10/30/2025 16:30														There was no enforcement action taken against an illicit discharge in response to this spill, since there were none illicit discharges known at that time	BACKGROUND Niland Sanitation District (Niland SD) dissolute through LAFCO on 07-19-2018, and the Niland County Sanitation District (aka Niland CSD) was formed. The Niland CSD is 1 of 4 Sanitary Services Areas that are overseen by the Imperial County Department of Public Works (ICDPW).  PMP ICDPW is preparing a Preventive Maintenance Program (PMP) for Cleaning & Inspecting the Niland Sewer Collection System (SCS), consisting of - but not limited to:   * Visual inspections of the sewer manholes, and of the inspections of sewer lines segments by a close caption video method (CCTV) at least once a year or two years once sewer lines are cleaned.   * Cleaning the sewer lines with a �Water Gravity Flow� Method (aka G-Flow) at a minimum, and/or by using a High-Pressure Water Jet Method at Light, Medium, or Heavy intensity rates, contingent upon the type of potential blockage materials or sediments in the sewer lines as shown by the CCTV inspections.  * Other	1. SERP Completion on or about 02-21-25  2. PMP Completion on or about 03-21-25  3. SSMP Completion on or about 05-16-25  4. GIS SYSTEM Completion a year from its approval by the ICDPW and its adoption by the State/Regional Water Boards tentatively to take place on or about 07-31-25	With the assistance of the Visual Inspections and CCTV of the Sewer Collection System (SCS) an Improvements Priorities Inventory (IPI) will be prepared for the different circuits and/or segments of the SCS.  The IPI will identify and prioritize the sewer manholes repair and/or replacements, sewer lines repair and/or replacements, and/or the sewer lines rehabilitation with lining (polyethene or equivalent). 	The Sewer Spill Respondents: PERC-WATER + ROVE Engineering + ANCON Marine Services, have identified and reported to the ICDPW, that there are some Sewer Manholes needing repair and/or replacement.  There are Sewer Manholes that their internal cylinder / cone perimeter structure is made of clay bricks, with the potential of brick portions falling to the manhole bottom and obstructing or blocking the sewer flow.  There are Sewer Manholes with broken or missing the Internal Concrete Rings (ICR) that supports the MH Rim & Cover.  There are Sewer Manholes with broken or missing the External Concrete Rings that surrounds and fixes the MH Rim & Cover at the roadway surface.  	The Capital Improvements Program (CIP) is a required ELEMENT of the SSMP, hence all those items in the Improvements Priorities Inventory (IPI) as mentioned on item 20.d.2 above, will be included in the CIP.	At this time there is no documentation available to verify any immediately implementation for system modifications and operating/maintenance modifications, except for what it is being proposed on Items 20.d.1, 20.d.2, 20.d.3, and 20.d.4 above mentioned.  Yet, there is one component of an  Immediate Correction Action  that the ICDPW is to accomplish through an  On-Going  Construction Project, which includes the replacement of two sewer line sections crossing irrigation facilities, and the interior lining (polyethylene or equivalent) of +- 5,484 LF of the  Main Collector  sewer lines convey sewage to the Niland CSD Wastewater Treatment Plant.  Said  Main Collector  consisting of 1 segment (+- 2,459 LF) along SR-11 (from Noffsinger Road to Alcott Road) and 1 segment (+- 3,025 LF) along Alcott Road (from SR-111) to the Niland Wastewater Treatment Plant.	The Spill Response activities will be revised, modified and  fine-tuned  during the preparation of the Spill Emergency Response Plan (SERP), as indicated on Item 20.b above mentioned.	There were no  Ongoing  Investigations efforts after the spill occurred, other than the specific activities such as - but not limited to: collection of spill samples for LAB Tests, collection soils samples before and/or after the spill for LAB Tests, dissection of sewer line blockage materials and/or its components, and other activities to be included in the Spill Emergency Response Plan and on the Preventive Maintenance Plan (PMP).	
5F	5SSO10771	Active	Tuolumne Utilities District CS	Tuolumne Utilities District	898753	1.3	Certified	Aidan Whitmer	Collections Foreman	23-JAN-25	30-JAN-25	30-JAN-25	Category 1 Spill	12811 Cabezut Road	01/23/2025 05:58	01/23/2025 06:25	01/23/2025 05:00	01/23/2025 09:11	25-0330		Spill originated from manhole in the intersection of Cabezut road, Covey Circle and the driveway to 12811 Cabezut Road. Manhole is located in the North/East bound lane.	37.98732	-120.36508	Manhole	n/a	n/a	460	Spilled from manhole and ran down street area to the storm drain nearby.	Y	Spilled into a small storm drain that transported the sewer roughly 400 feet over to a large storm drain containing the small tributary creek that feeds into Sonora Creek.	250	210	Discharged from small storm drain into a large storm drain carrying a small tributary creek that feeds into Sonora Creek.	210	250	Drainage Conveyance System that discharges to surface water	N/A	This sewer spilled from a manhole, ran down cabezut road to a Drain inlet. The sewer then ran down a small storm drain to another D.I. down on covey circle where the smaller storm drain dumps into a larger pipe that is carrying a small tributary creek. 1D &1E are coordinates for the D.I. at the street. 1F &1G are coordinates for the D.I. where the smaller storm drain dumps into the creek.	Y	37.98693	-120.36527	37.98677	-120.36622					01/23/2025 06:29	Spill volume was calculated using the Sewer Spill Estimation Guide developed by the Orange County Area Waste Discharge Requirements Steering Committee. For this spill, I calculated for a 1/2  tall plume of sewer being expelled 360 degrees around a 24  manhole lid, as well as a 1  semicircular pick hole with a 1.5  tall plume of sewer being expelled from it giving me a total of 5.17 Gallons Per Minute for an estimated 89 minutes.	I believe the spill had started around 05:00 for a number of reasons. A coworker called this spill in to me at 05:55 saying that he saw water around a manhole in the street while he was heading to work. The water had not yet made it to a storm drain and it was not a very large area that was wet. When we arrived on site at 06:25 the sewer had made it to a storm drain and was a much larger area than he had described. There was no coloration or scum/ grease layer on the road and  At 06:25 there was only one set of tire tracks driving through the spilled sewer leading me to believe to believe it had not been going for long. 	Debris-Rags	N/A	Manhole	N/A	Polyvinyl Chloride (PVC)	N/A	20	The spill had no known impact on life or health. No solids escaped the manhole, it was mainly just liquids. The Creek does not show any impact of the spill. There is no visible sewer in the creek and we have not seen any dying aquatic life or plants. There does not appear to be anything out of the ordinary.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Upon arriving on site, we immediately set up a vacuum truck on the manhole that was spilling to end the spill as quickly as possible. Once we got the manhole emptied and the blockage was cleared, we washed off the road with disinfectant and water while vacuuming all the cleanup water. Afterwards we flushed the storm drain with disinfectant and water and vacuumed all of this water at the next access. We filled the rest of the vacuum truck up with water from the creek at the point where the sewer spill met the creek, hoping to capture as much of the sewer as possible.	Other (specify below); Repaired Facilities or Replaced Defect	This line is already on a quarterly cleaning schedule. We are planning a confined space entry to cut the outflowing pipe flush with the concrete to allow the rags and wipes to flow through this manhole as smoothly as possible. There is an assisted living facility that flows into this manhole and I believe they are the main contributor to the rags and wipes entering our system. We are in contact with them to hopefully cut down on the amount of debris flowing into our system.	We are planning a confined space to enter the manhole and smooth out any potential lips or snags in the pipe that could have contributed to the rags piling up in this manhole. We are also going to be sending out a robo-call to all customers that are connected to this line, reminding them what they can and cannot flush into the sewer system.	Planning confined space, gathering equipment. Compiling list of addresses that will be receiving robo call. Confined space has been completed.	01/23/2025 11:01	The spill was found to be caused by a large amount of rags that had piled up in the invert of the manhole, blocking off flow causing the manhole to spill. We are unsure where all of these rags/wipes came from, as we have not seen any other issues in the area.	N			Sonora creek	Stream/Creek	This spill flowed into a tributary to Sonora Creek, eventually Sonora Creek flows into Woods Creek, eventually Woods Creek flows into Don Pedro Reservoir.	Sonora creek is a small creek that flows heavily in storms and has very little water flowing otherwise.	No observed impacts on aquatic life. The aquatic life seems to be unaffected by this spill.	Other (specify below)	Posted contaminated water signs around nearby creek accesses.	Tuolumne	5	N	N												
8	8SSO10617	Active	Eastern Municipal Water District CS	Eastern Municipal Water District	898760	1.1	Certified	Ken Tagney	Director of Water Reclamation		31-JAN-25	31-JAN-25	Monthly Category 3 Spill	Chelban Way and Juanita Ave., Moreno Valley	01/22/2025 13:23	01/22/2025 13:23	01/22/2025 13:23				SRK Engineering was working with Rain for Rent and has set up an external bypass on the sewer manhole. During this work, the contractors temporary pump stopped running. Then the backup pump failed as well. So, then to prevent the spill going on to the street the contractor chose to remove the plug going downstream and into the excavation. 	33.8964	-117.21768	Gravity Mainline; Other (specify below)	The pipe was open to facilitate work so when the bypass failed and the contractor removed the downstream plug, the wastewater then flowed into their below grade excavation. 		900	Spill was contained in a below grade excavation where the contractor had been working on the affected sewer line. 	N						900	Other (specify below)	Construction excavation.	The destination of the spill was the contractors below grade excavation. 	N									01/22/2025 13:38	Flow from the bypass pump as well as the size of the excavation.	Contractor was on site when SSO started and when it ended. 	Construction Diversion Failure		Gravity Mainline		Other (specify below)	Construction pipeline bypass 	0	Construction excavation had to be pumped out. 	N	Contained All or Portion of Spill		To prevent the spill going on to the street the contractor chose to remove the plug going downstream and into the excavation. This is where the approximately 900 gallons of sewer water was contained in the below grade excavation.   	Other (specify below)	Fix bypass pumps. 	The contractor could've had a stand by pump on site just in case if they have issues with the bypass pumps.  		01/22/2025 13:38	The spill was caused by failure of the contractors primary and backup construction bypass pumps. 		There are no ongoing investigation efforts. 	01/22/2025 13:38														N/A	The contractor could've had a stand by pump on site just in case if they have issues with the bypass pumps. 	N/A	N/A	N/A	N/A	N/A	At this time there are no planned response activities modifications planned. 	There are no ongoing investigation efforts. 	
4	4SSO10420	Active	Rancho Palos Verdes City CS	Rancho Palos Verdes City	898762	1.2	Certified	Eric Liu	Civil Engineer	23-JAN-25	30-JAN-25	30-JAN-25	Category 1 Spill	1654-0256 (29918 Knoll View Drive, Rancho Palos Verdes)	01/17/2025 16:00	01/17/2025 17:10	01/17/2025 16:00				CSMD Map Sheet No. 1654 MMS No. 9201575 Manhole No. 256 	33.74472	-118.32782	Manhole			100	A portion of the sewage went into the storm drain.	Y	A portion of the sewage went into the storm drain at 29839 Knoll View Drive, Rancho Palos Verdes, CA.  	25	75	A portion of the sewage went into the storm drain at 29839 Knoll View Drive, Rancho Palos Verdes, CA, which leads to private drain and San Pedro Canyon.	75	25	Drainage Conveyance System; Street/Curb and Gutter (2 3)		A portion of the sewage went into the storm drain at 29839 Knoll View Drive, Rancho Palos Verdes, CA, which leads to private drain and San Pedro Canyon.	Y	33.74593	-118.32721							01/17/2025 17:45	Visual Eyeball Method. Visual Estimation of Sewage Fluid on Road and Storm Water Catch Basin.	The start time is obtained from the reporting party, and the end time is determined when the crew clears the obstruction, and the overflow stops. 	Debris-General; Debris-Rags; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		61	A portion of the sewage went into the storm drain at 29839 Knoll View Drive, Rancho Palos Verdes, CA, which leads to private drain and San Pedro Canyon.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow		Upon arrival, the crew observed no active sewage spill; however, visible traces of sewage fluid had escaped from the manhole. An investigation confirmed the presence of a blockage in the mainline. The crew hydro-jetted the mainline and cleared the blockage, which was caused by grease, rags, roots, and wipes. Approximately 25 gallons of sewage were recovered from the roadway and the catch basin in front of 29918 Knoll View Drive. The catch basin and roadway were then flushed with clean water. All required agencies were notified. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Inspected sewer using CCTV and will adjust the schedule of preventive maintenance.  	30-day Control Roots - Root Cutter periodic.	01/17/2025 19:00	Heavy roots	N			Watershed Boundaries - Long Beach Harbor	Other (specify below)	A portion of the sewage went into the storm drain at 29839 Knoll View Drive, Rancho Palos Verdes, CA, which leads to private drain and San Pedro Canyon.	A portion of the sewage went into the storm drain at 29839 Knoll View Drive, Rancho Palos Verdes, CA, which leads to private drain and San Pedro Canyon. 	No Impact.	Other (specify below)	No Impact. 	N/A	0	N	N												
2	2SSO10193	Active	San Francisco City Separate CS	San Francisco Public Utilities Commission	898765	1.2	Certified	Daniel Whitlock	Manager		12-FEB-25	12-FEB-25	Monthly Category 3 Spill	1800 Owens St.	01/21/2025 21:28	01/21/2025 21:40	01/21/2025 17:30				Spill occurred inside UCSF parking garage due debris blockage of asset P-288174. Made its way into a drain that leads back into the sanitary sewer system.	37.76601	-122.39098	Inside Building or Structure			68	Spill was contained to inside the parking lot. See photos 	N						68	Building or Structure		Spill contained to UCSF parking lot at 1800 Owens St. Made its way back into sanitary sewer system.	Y	37.76601	-122.39098							01/21/2025 23:30	Measured volume determination . See below for Math example. 	Length = 108ft. Width = 180 ft. Depth = 0.01 ft. Wetness= 50%  108 x 180 x 0.01 x7.48 x.5 = 68 gallons	Debris-General		Gravity Mainline		Vitrified Clay		8	No impacts such as road closures occurred. Spill was contained in parking garage. 	N	Contained All or Portion of Spill; Other (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	Longfellow Engineering contacted to clean up spill.	Vaccon truck responded and flushed the main sewer relieving sewer back up. Longfellow Engineering on scene for cleanup.	Added Sewer to Preventive Maintenance Program		12 assets associated with spill along Owens St. and 16th St. will be added to the PM program. We are adding downstream lines to the PM program for efficacy in flow and solid handling. 		01/22/2025 14:35	Debris in the pipe P-288174 caused spill.		None	01/21/2025 23:30														N/A	12 assets associated with spill along Owens St. and 16th St. will be added to the PM program. We are adding downstream lines to the PM program for efficacy in flow and solid handling. 	Assets associate with spill will be added to a yearly pm schedule. We will check solid handling at yearly Pm and potentially adjust duration if needed. 	None.	No assets replaced or repaired but 12 assets along Owens st. and 16th st. added to yearly pm program.	None.	N/A	None	None	
1	1SSO10086	Active	Yreka City CS	Yreka City	898771	1.2	Certified	Matthew Bray	Director	24-JAN-25	03-FEB-25	03-FEB-25	Category 1 Spill	1020 Miner Street	01/21/2025 11:28	01/21/2025 11:42	12/26/2024 13:00	01/22/2025 08:28	25-0316		Spill originated from manhole in back yard of 1020 Miner Street.  Homeowner thought it was storm water.	41.73536	-122.65154	Manhole		Spill appeared from single manhole in back yard of 1020 Miner Street	28233	spill exited manhole in back yard.  some absorbed in ground and some flowed to storm drain inlet also in back yard.	Y	the spill entered drainage conveyance through inlet then was transported down stream through underground storm drain pipes that ultimately lead to Little Humbug Creek.	0	0	spill entered surface water through single outfall into Little Humbug Creek	28233	0	Drainage Conveyance System that discharges to surface water; Surface Water; Unpaved Surface		Spill originated from manhole in back yard a portion entered a drainage conveyance system that discharges to surface water and spill ultimately reached surface water. 	Y	41.73536	-122.65157							01/21/2025 11:58	We confirmed all upstream properties with water meters and connect into gravity sewer mainline that overflowed.  pulled water meter reports for the the last 5 years For December and January.  We totaled all of the consumption for each month, added them all together then divided that number for the 9 total months.  We interviewed the homeowner and used information to estimate which portion of the leak spill entered the drainage conveyance system.  We performed research on which portion of household water enters the sanitary sewer system.  Ultimately we  multiplied the the average monthly usage by the portion of a month that the leak was active by the portion of the metered water that entered the sewer system by the portion of the spill that entered the drainage conveyance system.  Please see attached document for math.	Estimated portion of water from households that enters sanitary sewer system and estimated portion of spill that absorbed into ground and portion that flowed through soft plug and was able to reach the Wastewater Treatment Plant. 	Debris-Rags; Root Intrusion		Gravity Mainline		Concrete		45	spill ultimately reached surface water	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow		Immediately responded to spill when notified.  Restored flow  within 30 minutes of notification.  Cleaned up homeowners backyard	Adjusted Schedule/Method of Preventive Maintenance; Post Spill CCTV		adjusted schedule of Jetting the sewer main segment by creating a recurring work order through Cartegraph Asset Management software.	clean this sewer main segment bi anually. 	01/21/2025 14:30	Interviewed homeowner who called spill in to City.  He let us know that he first noticed the spill the day after Christmas but it had been raining so hard that he thought that it was storm water.   The spill would then start and stop and looked very clean so he kept the assumption that it was storm water.  Then on January 21st he noticed evidence of toilet paper and called into City.  When we jetted the line and unplugged the spill we pulled back dead dried out roots and flushable wipes.	N			Little Humbug Creek	Stream/Creek		Spill ultimately reached a storm drain outflow that enters little Humbug Creek	None. Water in creek was flowing well and small amount of effluent mixed with storm water and entered creek slowly over 27 days. 	Other (specify below)	Creek is overgrown in area and not used for public access 	City of Yreka	0	N	N												
8	8SSO10620	Active	EVMWD Regional Plant CS	Elsinore Valley Municipal Water District	898772	1.2	Certified	Alex Ramirez	WW collections worker lll		12-FEB-25	12-FEB-25	Monthly Category 3 Spill	16050 Grand ave	01/23/2025 01:23	01/23/2025 01:53	01/23/2025 01:00				Coordinates below, 1 spill point private (cleanout)	33.655	-117.3672	Lateral Clean Out (Private)			60	In Attachments 	N	N/a					0	Unpaved Surface		Spill was contained in dirt area with berms about 15ft from cleanout spill point	Y	33.65506	-117.36734							01/23/2025 01:55	Spill volume was calculated by seeing the puddles spill created and sewage was not spilling out when arrived. calculated what was on the ground.	when arrived at the spill point, the spill had stopped due to the extremely low flow gravity main.	Root Intrusion		Gravity Mainline; Manhole		Vitrified Clay		40	see photos attached 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow		When responding to SSO the spill was not spilling out of cleanout, berms were made and sewage was puddled up in dirt yard, area was cleaned and disinfected with Lysol.	Other (specify below); Post Spill CCTV	Manhole was cleared of the roots causing spill	Implement higher volume reoccurring maintenance for root infested areas.		01/23/2025 06:00	Manhole had large number of roots causing blockage and backing up the system. cleanout was the 10ft from spill point and was contained through dirt berms		CCTV will follow to verify and other root intrusion issues.	01/30/2025 08:51														N/A	Higher reoccurring Root control 	Root control	N/A	Manhole inspected for roots and cleared	N/A	Root control will immediately be implemented for manhole that caused blockage.	No modifications will be done for response, sso response will be priority 	CCTV will follow to verify and other root intrusion issues.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	898775	1.1	Certified	Ameal McLaurin	Sewer Supervisor 2		28-JAN-25	28-JAN-25	Monthly Category 3 Spill	2634 98th Avenue, Oakland Ca	01/06/2025 12:36	01/06/2025 13:00	01/05/2025 12:00				Manhole overflowing on an easement in the rear of the property, the sewage was flowing on unpaved surface where it soaked into the soil in the back yard.	37.75086	-122.15492	Manhole			153	Manhole overflowing on an easement in the rear of the property, the sewage was flowing on unpaved surface where it soaked into the soil in the back yard.	N						0	Unpaved Surface		Manhole overflowing on an easement in the rear of the property, the sewage was flowing on unpaved surface where it soaked into the soil in the back yard.										01/06/2025 14:10	Calculated volumes: Manhole to fence: 3'L x 2.5'W x .5'D x 7.48-gal x .1875 = 5 gallons From fence to the end of spill: 20'L x 10'W x .5'D x 7.48-gal x .1875 = 140 gallons 6' L x 2'W x .5'D x 7.48-gal x .1875 = 8 gallons Total spill: 5 + 140 + 8 = 153 gallons	The start time was based on: After several attempts to establish communication with residents and the affected party were not responded, we had to use the methodology of the color of the toilet paper and solids around the spill site. The color of the paper showed it was a recent spill. The end time was based on responding sewer crew restoring the flow in the mainline.  	Root Intrusion		Gravity Mainline		Vitrified Clay		125	Manhole overflowing on an easement in the rear of the property, the sewage was flowing on unpaved surface where it soaked into the soil in the back yard.	N	Other (specify below); Property Owner Notified; Restored Flow	A claim packet was provided to property owner to have a restoration company to do a cleanup of the affected areas of the spill.	A claim packet was provided to property owner to have a restoration company to do a cleanup of the affected areas of the spill.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Mainline has been placed on a 6-month hydro high frequency maintenance program. W.O #1588711. Manhole has been placed on a 6-month root removal high frequency maintenance program. W.O #1588705.		01/16/2025 13:40	CCTV inspection found root intrusion in the mainline to had been the cause of the blockage.		N/A	01/16/2025 13:40														N/A	Mainline has been placed on a 6-month hydro high frequency maintenance program. W.O #1588711. Manhole has been placed on a 6-month root removal high frequency maintenance program. W.O #1588705.	Mainline has been placed on a 6-month hydro high frequency maintenance program. W.O #1588711. Manhole has been placed on a 6-month root removal high frequency maintenance program. W.O #1588705.	N/A	CCTV inspection W.O.#1586270 found root intrusion within the mainline to had been the cause of the blockage.	N/A	Mainline has been placed on a 6-month hydro high frequency maintenance program. W.O #1588711. Manhole has been placed on a 6-month root removal high frequency maintenance program. W.O #1588705.	Mainline has been placed on a 6-month hydro high frequency maintenance program. W.O #1588711. Manhole has been placed on a 6-month root removal high frequency maintenance program. W.O #1588705.	N/A	
7	7SSO10532	Active	Niland CS	Niland SD	898780	1.4	Certified	John Gay	Public Works Director	28-JAN-25	31-JAN-25	31-JAN-25	Category 2 Spill	Niland Apartments 17 West 4th Street - MH Middle Street near Dirt Road	01/24/2024 17:30	01/24/2024 16:30	01/24/2024 16:15	01/24/2024 20:28			See Attachment A consisting of a Google Image depicting the spill approximate perimeter dimensions, the spill approximate area, the orientation of the photos taken at the field, and the approximate coordinates of the sewer manhole cover where the spill was coming out from the sewer manhole at the end of the street surface.	33.23824	-115.52124	Manhole			1296	See Attachment A same as the one on Item 7 above mentioned	N						1296	Unpaved Surface		The spill incident destination was on a dirt road, adjacent west of the sewer manhole and adjacent west to the west end of a paved street fronting the Niland Apartments  See ATTACHMENT A which represents the spill estimated area	Y	33.23819	-115.52132							01/25/2024 04:30	The Spill Volume was calculated by estimating the Spill Area of 4,125 SF based on the  Polygon  Area derived from the Measuring Tool of the Google EARTH application, multiplied by an estimated averaged spill depth of half inch (0.042 Feet):  VOL = 4,125 F x 0.042 FT = +- 173 CF x 7.48 Gallons/CF = 1,296 Gallons   According to ANCON MARINE Services (a Haz-Mat company that handles, hauls and disposes hazardous materials, including wastewater sewer spills) the Spill Volume accumulated and vacuumed before the blockage in the sewer main line was removed, was in the vacuum pump as being 1,200 Gallons	PERC-WATER Corporation (PWC), provides the  M&O  of the Niland CSD Wastewater Treatment Plant (WWTP) for the Imperial County Department of Public Works (ICDPW), also provides the services as the First Respondent to Sanitary Sewer Spills, by keeping track of all the time or the Spill events once they are reached by the LRO of the ICDPW.   PWC called, coordinated, took photos and kept time records of the arrivals to the site of one (1) company as indicated in its  Overflow Event  Report Letter dated 01-25-24 (see ATTACHMENT 1).  1. ANCON MARINE (AM) provided: removing and disposing of the sewer spill liquids vacuumed & disposal, the spill impacted soils vacuumed/removal & disposal, and the application of sodium hypochlorite (12.5% strength) on top of the soils surface area that contained the spill 	Debris-Rags; Debris-wipes/Non-disposables		Gravity Mainline		Vitrified Clay		75	The spill impact was on a dirt area estimated of 4,125 SF located adjacent west to the west end of 4th Street, a paved street in front of the Niland Apartments. The said dirt area was cleaned, hauled, and disinfected by Ancon Marine Services	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow		See ATTACHMENT 1 consisting of PERC WATER Corporation  Overflow Event  letter dated 01-25-24	Added Sewer to Preventive Maintenance Program; Plan Rehabilitation or Replacement of Sewer		In response to a Notice of Violation dated 11-26-24 from the Regional Water Board Enforcement Unit, the ICDPW is taking the immediate corrective/preventive actions:  1. Prepare and submit this Spill Report (aka SSO-2-JAN24) in the CIWQS  2. Prepare a Spill Emergency Response Plan (SERP) to include: * Notification to Cal OES * Spills clean-up and documentation * Monitoring & reporting pursuant to Attachment E1 - of the New ORDER 2022-0103-DWQ and according to the Spill Category 1, 2 or 3 * Collection of Spills Information for futures spills prevention/reduction * Post Spill assessment of spill response activities * Additional Activities as listed in Section 6. Spill Emergency Response Plan, Attachment D of the New ORDER 2022-0103-DWQ.  3. Preparation of a Sewer Sistem Management Plan (SSMP) according to the Ner ORDER 2022-0103-DWQ, consisting of various elements, including a SERP.  4. The design, development & implementation of a GIS SYSTEM to anticipate, prevent or reduce sewer spills	1. SSO-2-JAN24 Completion on or about 01-31-25  2. SERP Completion on or about 02-21-25  3. SSMP Completion on or about 05-16-25  4. GIS SYSTEM Completion a year from its approval by the ICDPW and its adoption by the State/Regional Water Boards tentatively to take place on or about 07-31-25  5. The Preparation of a Sewer Collection System Preventive Maintenance Plan (SCS-PMP) Completion on or about 03-21-25. NOTE: The number of characters in the Box above for Item 10.b where not sufficient to include this Item 5 in said Box.	01/25/2024 04:30	There were no  Ongoing  Investigations efforts after the spill occurred, yet investigation activities such as - but not limited to: the collection of spill samples for LAB Tests, collection soils samples before and/or after the spill for LAB Tests, dissection of sewer line blockage materials and/or its components, can be included in the Spill Emergency Response Plan (SERP) and on the Sewer Collection System Preventive Maintenance Plan (SCS-PMP).	N												N													
7	7SSO20054	Active	Niland CS	Niland SD	898780	1.4	Certified	John Gay	Public Works Director	28-JAN-25	31-JAN-25	31-JAN-25	Category 2 Spill	Niland Apartments 17 West 4th Street - MH Middle Street near Dirt Road	01/24/2024 17:30	01/24/2024 16:30	01/24/2024 16:15	01/24/2024 20:28			See Attachment A consisting of a Google Image depicting the spill approximate perimeter dimensions, the spill approximate area, the orientation of the photos taken at the field, and the approximate coordinates of the sewer manhole cover where the spill was coming out from the sewer manhole at the end of the street surface.	33.23824	-115.52124	Manhole			1296	See Attachment A same as the one on Item 7 above mentioned	N						1296	Unpaved Surface		The spill incident destination was on a dirt road, adjacent west of the sewer manhole and adjacent west to the west end of a paved street fronting the Niland Apartments  See ATTACHMENT A which represents the spill estimated area	Y	33.23819	-115.52132							01/25/2024 04:30	The Spill Volume was calculated by estimating the Spill Area of 4,125 SF based on the  Polygon  Area derived from the Measuring Tool of the Google EARTH application, multiplied by an estimated averaged spill depth of half inch (0.042 Feet):  VOL = 4,125 F x 0.042 FT = +- 173 CF x 7.48 Gallons/CF = 1,296 Gallons   According to ANCON MARINE Services (a Haz-Mat company that handles, hauls and disposes hazardous materials, including wastewater sewer spills) the Spill Volume accumulated and vacuumed before the blockage in the sewer main line was removed, was in the vacuum pump as being 1,200 Gallons	PERC-WATER Corporation (PWC), provides the  M&O  of the Niland CSD Wastewater Treatment Plant (WWTP) for the Imperial County Department of Public Works (ICDPW), also provides the services as the First Respondent to Sanitary Sewer Spills, by keeping track of all the time or the Spill events once they are reached by the LRO of the ICDPW.   PWC called, coordinated, took photos and kept time records of the arrivals to the site of one (1) company as indicated in its  Overflow Event  Report Letter dated 01-25-24 (see ATTACHMENT 1).  1. ANCON MARINE (AM) provided: removing and disposing of the sewer spill liquids vacuumed & disposal, the spill impacted soils vacuumed/removal & disposal, and the application of sodium hypochlorite (12.5% strength) on top of the soils surface area that contained the spill 	Debris-Rags; Debris-wipes/Non-disposables		Gravity Mainline		Vitrified Clay		75	The spill impact was on a dirt area estimated of 4,125 SF located adjacent west to the west end of 4th Street, a paved street in front of the Niland Apartments. The said dirt area was cleaned, hauled, and disinfected by Ancon Marine Services	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow		See ATTACHMENT 1 consisting of PERC WATER Corporation  Overflow Event  letter dated 01-25-24	Added Sewer to Preventive Maintenance Program; Plan Rehabilitation or Replacement of Sewer		In response to a Notice of Violation dated 11-26-24 from the Regional Water Board Enforcement Unit, the ICDPW is taking the immediate corrective/preventive actions:  1. Prepare and submit this Spill Report (aka SSO-2-JAN24) in the CIWQS  2. Prepare a Spill Emergency Response Plan (SERP) to include: * Notification to Cal OES * Spills clean-up and documentation * Monitoring & reporting pursuant to Attachment E1 - of the New ORDER 2022-0103-DWQ and according to the Spill Category 1, 2 or 3 * Collection of Spills Information for futures spills prevention/reduction * Post Spill assessment of spill response activities * Additional Activities as listed in Section 6. Spill Emergency Response Plan, Attachment D of the New ORDER 2022-0103-DWQ.  3. Preparation of a Sewer Sistem Management Plan (SSMP) according to the Ner ORDER 2022-0103-DWQ, consisting of various elements, including a SERP.  4. The design, development & implementation of a GIS SYSTEM to anticipate, prevent or reduce sewer spills	1. SSO-2-JAN24 Completion on or about 01-31-25  2. SERP Completion on or about 02-21-25  3. SSMP Completion on or about 05-16-25  4. GIS SYSTEM Completion a year from its approval by the ICDPW and its adoption by the State/Regional Water Boards tentatively to take place on or about 07-31-25  5. The Preparation of a Sewer Collection System Preventive Maintenance Plan (SCS-PMP) Completion on or about 03-21-25. NOTE: The number of characters in the Box above for Item 10.b where not sufficient to include this Item 5 in said Box.	01/25/2024 04:30	There were no  Ongoing  Investigations efforts after the spill occurred, yet investigation activities such as - but not limited to: the collection of spill samples for LAB Tests, collection soils samples before and/or after the spill for LAB Tests, dissection of sewer line blockage materials and/or its components, can be included in the Spill Emergency Response Plan (SERP) and on the Sewer Collection System Preventive Maintenance Plan (SCS-PMP).	N												N													
5S	5SSO10865	Active	Angels Camp CS	Angels City	898782	1.3	Certified	Dave Richard	City Water/Wastewater Engineer		24-JAN-25	24-JAN-25	Monthly Category 3 Spill	308 Catalpa Lane	01/17/2025 14:20	01/17/2025 14:45	01/17/2025 14:00				Spill originated at manhole and stayed in small grassy depression located on golf course.	38.06835	-120.56577	Manhole			50	Spill was contained within grassy area next to golf course.	N						10	Other (specify below)	Grassy Area	Spill was contained within grassy area next to golf course.	Y	38.06833	-120.56584	38.06812	-120.56579	38.06815	-120.56571	38.06819	-120.56575	01/17/2025 15:00	Visual estimate of spill - 30-ft by 30-ft area.	Visual estimate of spill based on area it was contained in and depth. Spill overflow was approximately 1 hour from 14:00 to 15:00	Fats, Oil and Grease (FOG)		Manhole		Polyvinyl Chloride (PVC)		30	No impact, spill was contained and cleaned up within 15 minutes of operator onsite.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Returned Portion of Spill to Sanitary Sewer System		HydroVac and rake/shovel spill. Disinfected spill area afterwards.	Added Sewer to Preventive Maintenance Program		Implementation of preventative maintenance program for sanitary sewer overflows.		01/17/2025 15:00	Spill was caused due to grease build-up within manhole. Will consider flushing manhole and pipeline within 6 months.		None scheduled.	01/17/2025 18:30														Homeowner informed.	Periodic Inspection and scheduled for CCTV.	CCTV inspection scheduled within 6 months.	Will depend on results of CCTV inspection.	Will depend on results of CCTV inspection.	Will depend on results of CCTV inspection.	Spill will be included in annual report.	Periodic inspection increased from bi-annual to bi-monthly.	None scheduled.	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	898827	1.2	Certified	John J. Hough	San Dist. Superintendent	26-JAN-25	05-FEB-25	05-FEB-25	Category 1 Spill	354917	01/22/2025 11:49	01/22/2025 12:19	01/22/2025 11:00				See Attached Spill map with Photos.	38.5448	-121.2833	Manhole			410	See Attached Spill Map with Photos	Y	See Attached Spill map with Photos.	1	0	See Attached Spill map with Photos.	385	410	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		See attached Spill Map with Photos.	Y	38.5448	-121.2833	38.5445	-121.2835	38.5431	-121.2861	38.5416	-121.287	01/22/2025 12:45	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		24	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	Notified Sacramento County Water Resources Drainage O&M.	See Attached Description of Spill Event	Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Post Spill CCTV	Planned recleaning and post spill CCTV of sewer.	SacSewer inspected the main line with CCTV on January 22, 2025. Based on the findings, SacSewer plans to reclean the main line by the end of February 2025, and reinspect the main line within one year of cleaning for preventative maintenance evaluation.	SacSewer is targeting the end of February 2025 to reclean the main line, and targeting February 2026 for reinspection.	01/22/2025 23:30	See Attached Description of Spill Event	N			Unnamed Tributary to Morrison Creek	Stream/Creek		Earthen stream with standing water and light flow.	No observed impacts to aquatic life	Other (specify below)	No public access impacts.	N/A	0	N	N												
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	898828	1.2	Certified	John J. Hough	San Dist. Superintendent	26-JAN-25	06-FEB-25	06-FEB-25	Category 1 Spill	355037	01/24/2025 08:46	01/24/2025 09:16	01/21/2025 15:00				See attached Spill Map with Photos.	38.6665	-121.2826	Lateral Clean Out (Public)			524	See Attached Spill map with Photos.	Y	See Attached Spill map with Photos.	3	0	See attached Spill Map with Photos.	484	508	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See attached Spill Map with Photos.	Y	38.6665	-121.2826	38.6665	-121.2825	38.6661	-121.2847	38.6687	-121.2901	01/24/2025 09:53	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Root Intrusion		Lower Lateral		Vitrified Clay		59	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified City of Citrus Heights Public Works Department	See Attached Description of Spill Event	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected the lower lateral with CCTV on January 24, 2025. Based on the findings, SacSewer adjusted the preventative maintenance cleaning frequency of the lower lateral from 36 months to 12 months.	SacSewer adjusted the PM scheduled on January 27, 2025.	01/24/2025 18:10	See Attached Description of Spill Event	N			Brooktree Creek	Stream/Creek		Concrete-lined with standing water and light flow.	No observed impacts to aquatic life	Other (specify below)	No public access impacts. SacSewer placed contamination warning signs.	N/A	0	N	N												
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	898831	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		04-FEB-25	04-FEB-25	Monthly Category 3 Spill	2779 South Monte Mar Terrace	01/24/2025 10:48	01/24/2025 12:38	01/24/2025 10:48				The initial crew arrived at 12:38 P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Spill coming out of a maintenance hole in an easement at Monte Mar Terrace R/W.	34.042867	-118.399959	Manhole			376	Spill coming out of maintenance hole at Monte Mar Terrace R/W which soaked into the ground.	N						0	Unpaved Surface	The entire back up amount soaked into the ground.	It was estimated that approximately 376 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.	Y	34.042867	-118.399959							01/24/2025 19:31	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.	SPILL FLOWRATE AND VOLUME DETERMINATION BASED ON FLOWOUT PICKHOLE OR OPENING  DIAMETER OF PICKHOLE OR OPENING 0.75 INCHES HEIGHT OF WATER OUT OF PICKHOLE/OPENING 0.125 INCHES FLOWRATE PER PICKOLE/OPENING (GPM) 1 GPM # OF PICKHOLES/OPENINGS 1 TOTAL FLOWRATE (GPM )1 GPM DURATION OF SPILL (MINUTES) 523 MINUTES TOTAL FLOW (GALLONS) 376 GALLONS	Root Intrusion		Gravity Mainline		Vitrified Clay		99	It was estimated that approximately 376 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.	N	Restored Flow		On Friday, January 24, 2025 at 10:48 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 2779 South Monte Mar Terrace (TG 632-G5). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 7:31 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 376 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.  The Los Angeles County Department of Public Health was notified and determined that the overflow did not necessitate any beach closures. The sewer location where the backup occurred will be televised to determine the exact cause and to determine the necess	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.		01/24/2025 19:31	On Friday, January 24, 2025 at 10:48 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 2779 South Monte Mar Terrace (TG 632-G5). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 7:31 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.		Not At This Time.	01/24/2025 19:31														Not at this time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.		Not at this time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	Not at this time.		On Friday, January 24, 2025 at 10:48 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 2779 South Monte Mar Terrace (TG 632-G5). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 7:31 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 376 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.  The Los Angeles County Department of Public Health was notified and determined that the overflow did not necessitate any beach closures. The sewer location where the backup occurred will be televised to determine the exact cause and to determine the necess	Not At This Time.	
5F	5SSO11202	Active	City of Fresno CS	County of Fresno	898833	1.2	Certified	Arturo Alvarez	Wastewater Manager, Certified		30-JAN-25	30-JAN-25	Monthly Category 3 Spill	4944 N. Diana St.	12/21/2024 17:49	12/21/2024 18:16	12/21/2024 17:30				Spill originated from MH 1756-54; the private lateral cleanout for 4944 N. Diana St., and the private lateral cleanout for 2044 E. Sierra Madre Ave.	36.80765	-119.78603	Lateral Clean Out (Private); Manhole	n/a	n/a	140	Extent of spill includes street/curb & gutter, and unpaved area around (2) private lateral cleanouts.	N	n/a	0				140	Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface	n/a	Extent of spill includes street/curb & gutter, paved surface, and unpaved area around (2) private lateral cleanouts.	Y	36.80762	-119.78599	36.8073	-119.78658					12/21/2024 19:50	Estimated spill volume based on visual estimation of the spill rate from the private lateral cleanout for 4944 N. Diana St., and reporting party's statement of estimated start time.	Estimated spill start time provided by reporting party. Spill end time is when the combo (vacuum truck) set up at the private lateral cleanout for 4944 N. Diana St.	Root Intrusion	n/a	Gravity Mainline	n/a	Vitrified Clay	n/a	69	There is no known lasting impact resulting from this spill event.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	see 19.b.	After Operator confirmed no flood control assets were impacted by this spill event, he began documenting the spill area and appearance points. A combo (vacuum truck) was set up at the private service lateral that was actively spilling, ending the spill. The blockage was broken, mainline was flushed, and the affected spill area was documented, cleaned, and sanitized. 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Post Spill CCTV; Repaired Facilities or Replaced Defect	see 20.b.	12-24-24: Chain flailed mainline with camera to cut roots and confirm locations where a pipe patch was needed. 01-22-25: Mainline pipe patch repairs completed.		12/21/2024 21:48	After Operator confirmed no flood control assets were impacted by this spill event, he began documenting the spill area and appearance points. Operator stated it was obvious walking down the curb & gutter what was sewage based on the strong odor.  A combo (vacuum truck) was set up at the private service lateral for 2944 N. Diana St. that was still actively spilling, ending the spill. The blockage was broken, mainline flushed, and the affected spill area was documented, cleaned, and sanitized.  The resident at 2044 E. Sierra Madre Ave. stated they did not notice a spill in the street (in front of their driveway) when they got home from work at 17:00. The resident at 2944 N. Diana St. (reporting party) stated he noticed his private lateral cleanout overflowing at 17:30. Residents at both affected addresses were notified of remedial actions taken.   Mainline CCTV inspection revealed roots at approximately the same footage the blockage was broken.		n/a	12/21/2024 21:48														n/a	No changes to existing root control schedule, mainline pipe patch repairs have been made.	see 20.d.	n/a	see 20.b. 	n/a	see 20.b. 	n/a	n/a	
5F	5SSO11202	Historical	City of Fresno CS	County of Fresno	898833	1.2	Certified	Arturo Alvarez	Wastewater Manager, Certified		30-JAN-25	30-JAN-25	Monthly Category 3 Spill	4944 N. Diana St.	12/21/2024 17:49	12/21/2024 18:16	12/21/2024 17:30				Spill originated from MH 1756-54; the private lateral cleanout for 4944 N. Diana St., and the private lateral cleanout for 2044 E. Sierra Madre Ave.	36.80765	-119.78603	Lateral Clean Out (Private); Manhole	n/a	n/a	140	Extent of spill includes street/curb & gutter, and unpaved area around (2) private lateral cleanouts.	N	n/a	0				140	Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface	n/a	Extent of spill includes street/curb & gutter, paved surface, and unpaved area around (2) private lateral cleanouts.	Y	36.80762	-119.78599	36.8073	-119.78658					12/21/2024 19:50	Estimated spill volume based on visual estimation of the spill rate from the private lateral cleanout for 4944 N. Diana St., and reporting party's statement of estimated start time.	Estimated spill start time provided by reporting party. Spill end time is when the combo (vacuum truck) set up at the private lateral cleanout for 4944 N. Diana St.	Root Intrusion	n/a	Gravity Mainline	n/a	Vitrified Clay	n/a	69	There is no known lasting impact resulting from this spill event.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	see 19.b.	After Operator confirmed no flood control assets were impacted by this spill event, he began documenting the spill area and appearance points. A combo (vacuum truck) was set up at the private service lateral that was actively spilling, ending the spill. The blockage was broken, mainline was flushed, and the affected spill area was documented, cleaned, and sanitized. 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Post Spill CCTV; Repaired Facilities or Replaced Defect	see 20.b.	12-24-24: Chain flailed mainline with camera to cut roots and confirm locations where a pipe patch was needed. 01-22-25: Mainline pipe patch repairs completed.		12/21/2024 21:48	After Operator confirmed no flood control assets were impacted by this spill event, he began documenting the spill area and appearance points. Operator stated it was obvious walking down the curb & gutter what was sewage based on the strong odor.  A combo (vacuum truck) was set up at the private service lateral for 2944 N. Diana St. that was still actively spilling, ending the spill. The blockage was broken, mainline flushed, and the affected spill area was documented, cleaned, and sanitized.  The resident at 2044 E. Sierra Madre Ave. stated they did not notice a spill in the street (in front of their driveway) when they got home from work at 17:00. The resident at 2944 N. Diana St. (reporting party) stated he noticed his private lateral cleanout overflowing at 17:30. Residents at both affected addresses were notified of remedial actions taken.   Mainline CCTV inspection revealed roots at approximately the same footage the blockage was broken.		n/a	12/21/2024 21:48														n/a	No changes to existing root control schedule, mainline pipe patch repairs have been made.	see 20.d.	n/a	see 20.b. 	n/a	see 20.b. 	n/a	n/a	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	898881	1.2	Certified	Gerald Watson	Sanitation Wastewater Manager III		04-FEB-25	04-FEB-25	Monthly Category 3 Spill	145 North Layton Drive	01/25/2025 16:20	01/25/2025 17:45	01/25/2025 16:20				The initial crew arrived at 5:45P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Spill coming out of a maintenance hole located at Halvern Drive R/W.	34.069239	-118.47006	Manhole			691	See attached	N						0	Unpaved Surface	The entire back up amount soaked into the ground.	It was estimated that approximately 691 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.	Y	34.069239	-118.47006							01/25/2025 22:00	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.	SPILL FLOWRATE AND VOLUME DETERMINATION BASED ON FLOWOUT PICKHOLE OR OPENING  DIAMETER OF PICKHOLE OR OPENING 0.75  INCHES HEIGHT OF WATER OUT OF PICKHOLE/OPENING 1 INCHE FLOWRATE PER PICKOLE/OPENING (GPM)2GPM # OF PICKHOLES/OPENINGS 1  TOTAL FLOWRATE (GPM) 2 GPM DURATION OF SPILL (MINUTES) 340 MINUTES TOTAL FLOW (GALLONS) 691 GALLONS	Root Intrusion		Gravity Mainline		Vitrified Clay		77	It was estimated that approximately 691 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.	N	Contained All or Portion of Spill; Restored Flow		On Saturday, January 25, 2025, at 04:30 PM., the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 145 North Layton Drive (TG 631-G2). A CWCD crew was immediately dispatched to the incident location and determined that 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 10:00 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 691 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.    The Los Angeles County Department of Public Health was notified and determined that the overflow did not necessitate any beach closures. The sewer location where the backup occurred will be televised to determine the exact cause and to determine the necessary	Inspected Sewer Using CCTV to Determine Cause		As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.		01/25/2025 22:00	On Saturday, January 25, 2025, at 04:30 PM., the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 145 North Layton Drive (TG 631-G2). A CWCD crew was immediately dispatched to the incident location and determined that 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 10:00 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.		Not at this time.	01/25/2025 22:00														Not at this time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	Not at this time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	Not at this time.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed some defects that will be repaired by an Emergency On-Call Contractor. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	On Saturday, January 25, 2025, at 04:30 PM., the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 145 North Layton Drive (TG 631-G2). A CWCD crew was immediately dispatched to the incident location and determined that 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 10:00 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 691 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount soaked into the ground.    The Los Angeles County Department of Public Health was notified and determined that the overflow did not necessitate any beach closures. The sewer location where the backup occurred will be televised to determine the exact cause and to determine the necessary	Not at this time.	
2	2SSO10099	Active	Burlingame City CS	Burlingame City PWD	898884	1.2	Certified	RICK HORNE	Streets, Storm Drain and Sewer Division Manager		30-JAN-25	30-JAN-25	Monthly Category 3 Spill	1145 El Camino 	12/04/2024 16:46	12/04/2024 17:00	12/04/2024 16:46				The spill originated from a clean out located behind the property of 1145 El Camino within a utility easement. 	37.58362	-122.36618	Lateral Clean Out (Public)			112	The spill traveled from the appearance point at the back of the property then down the driveway to the street/ gutter surface where it was contained.	N						112	Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		The spill traveled to the roadway gutter where it was contained within the concrete surface at a low spot.	Y	37.58397	-122.36602							12/04/2024 21:30	City staff determined that approximately 103 gallons were discharged using both the eyeball estimation method for the shop vacuumed sewage (90 gallons) and the area/volume method (13.14 gallons) in the SSO workbook. 	Due to inaccurate records of the reporting party staff were unable to conduct effective interviews and assume that the reporting party witnessed the spill start at 4:46pm when they reported it.	Other (specify below)	pipe structural failure	Gravity Mainline		Vitrified Clay		100	The spill impacted the utility easement, roadway surface, curb and gutter.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		After arriving on the scene, crews ensured the spill was contained to a low spot within the gutter. After additional containment efforts; sandbags were placed in the gutter, other crew members worked on the sewer main to relieve blockage utilizing mechanical and hydrojet methods.	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV; Repaired Facilities or Replaced Defect		The damaged sewer main was repaired the following day, 12.5.24.		12/04/2024 21:30	After conducting CCTV of sewer main, it was determined a portion of the sewer main had collapsed causing a system blockage. The collapsed portion of sewer main was repaired the following day of the spill.		N/A	12/04/2024 21:19														N/A	Include section of sewer main to upcoming CIP project.	N/A	Include section of sewer main to upcoming CIP project.	N/A	N/A	N/A	N/A	N/A	
8	8SSO10565	Active	Corona City CS	Corona City DWP	898889	1.3	Certified	Aftab Hussain	Maintenance Manager	27-JAN-25	30-JAN-25	30-JAN-25	Category 1 Spill	Lincoln Ave & Fallbrook Dr	01/24/2025 11:48	01/24/2025 12:04	01/24/2025 11:48	01/24/2025 15:31	25-0359		See Attachment - SSO Photos. Spill exited the system from Manhole #3759.	33.8958192	-117.576707	Manhole			6600	See Attachment - SSO Photos and SSO Map. Overflow started at manhole #3759. Flowed south to storm drain.	Y	Spill exited manhole # 3759 and entered the storm drain to the South Norco Channel on Lincoln Ave and Fallbrook Dr.	0	0	See Attachment - SSO Photos. Spill exited manhole and entered the storm drain.	6100	1500	Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		500 gallons recovered from street. 1500 gallons recovered from channel.	Y	33.895819	-117.5767079	33.8955759	-117.576751	33.89559116	-117.5768742	33.895755	-117.576834	01/24/2025 13:16	From time phone call was received to time the line was unblocked and no longer overflowing. Utilized CWEA Manhole Overflow Guide to estimate spill flow.	Start time determined by phone call. Spill end time determined by visual observation.	Debris-General		Gravity Mainline		Vitrified Clay		28	Spill entered storm drain south of Fallbrook. Cleaned up street and also removed sewage out of the South Norco Channel.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified CalOES	Sandbags for containment. Also had 2 vacuum trucks to recover sewer discharge.	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance		Cleaned sewer main from manhole to manhole in all directions. To inspect with CCTV and added to preventative maintenance list. Expanded footage of existing location on our hotspot list.	To inspect with CCTV.	01/24/2025 16:45	General debris observed, to inspect with CCTV.	Y	To inspect with CCTV.	01/31/2025 17:31	Temescal Wash/Creek	Stream/Creek; Wash		Temescal Wash/Creek converges with South Norco Channel approximately 1,300 feet down stream of the Channel. 	No impacts observed.	Other (specify below); Restricted Public Access	Existing restricted access. 	City of Corona	0	N	Y	Samples collected next business day at the discharge point below the storm drain, upstream from the discharge point near channel, and downstream at storm drain and channel convergence point.	Total coliform, e.coli, ammonia.									To inspect with CCTV.	
5S	5SSO10993	Active	Manteca CS	Manteca City	898891	1.3	Certified	Derek Perry	Collections supervisor 		22-FEB-25	22-FEB-25	Monthly Category 3 Spill	1737 Bingham Ln	01/06/2025 07:17	01/06/2025 07:33	01/06/2025 07:10				Attached photo	37.82173	-121.23959	Manhole			51	Street and sidewalk gutter pans on Bingham Ln and Higton St	N						51	Paved Surface; Street/Curb and Gutter (2 3)		Street and sidewalk gutter pans										01/06/2025 07:25	Area/volume measurements	When observes by PD in the area	Debris-Rags; Pipe Structural Problem/Failure - Controls		Gravity Mainline		Ductile Iron; Polyvinyl Chloride (PVC)		40	N/A	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Pressure wash and vac affected areas:  pavement and gutter. Returning all retrieve sewage to treatment plant from the combo truck debris tank.	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Already on  Hot Spot  recurring maint. schedule. CCTV reveled need to replace section of corroded ductile iron pipe		01/06/2025 02:30	CCTV gravity mainline segment where spill occurred. CCTV reveled section of deteriorated pipe.		None	02/28/2025 11:26														N/A	Already on  Hot Spot  recurring maint. schedule. CCTV reveled need to replace section of corroded ductile iron pipe	None	USA ticket submitted for excavation and replacement of pipe section.	Will be replaced with by Feb 28 2025	N/A	None	Mitigate spill in gutter pan. Clear blockage in gravity main, restoring flow. Vac and pressure wash street and gutter.	None	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	898892	1.3	Certified	Kent Vian	Asst. Deputy Director	28-JAN-25	13-FEB-25	13-FEB-25	Category 1 Spill	NOT# 40201202560 10373 ROSELLE ST.	01/27/2025 09:28	01/27/2025 09:45	01/27/2025 09:28	01/27/2025 11:22	25-0402		THE SPILL ORIGINATED FROM A MANHOLE LOCATED IN THE STREET IN FRONT OF 10366 ROSELLE ST.	32.89314	-117.21801	Manhole	NA	NA	1350	THE SPILL EXITED THE MANHOLE IN THE CENTER OF THE STREET. HALF OF THE SPILL REACHED THE CURB AND GUTTER ON THE NORTHEAST SIDE AND THE OTHER HALF ON THE SOUTHWEST SIDE TRAVELING APPROXOMENTLY 20'. THEN THE SPILL TRAVELED NORTHWEST APPROXOMENTLY 1500' DOWN THE CURB AND GUTTER, WHERE IT MADE IT INTO THE DROP INLET. AND THEN TRAVELED 464' NORTHEAST INTO AN OUTFALL AND AN OPEN STORM CONVEYANCE SYSTEM. 	Y	INITIALLY, THE DRAINAGE CONVEYANCE SYSTEM WAS A 30  RCP UNDERGROUND SYSTEM AND THEN FED INTO A STORMWATER DRAIN CHANNEL.	500	850	THE DISCHARGE POINT INTO THE SURFACE WATER. THERE WAS WATER IN THE STORM DRAIN CHANNEL, SURROUNDED BY VEGETATION.	850	500	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface	NA	(1.C. & 1.D.) THE SPILL EXITED THE MANHOLE IN THE CENTER OF THE STREET. (1.D & 1.E) HALF OF THE SPILL REACHED THE CURB AND GUTTER ON THE NORTHEAST SIDE AND THE OTHER HALF ON THE SOUTHWEST SIDE TRAVELING APPROXOMENTLY 20'. (1.H & 1.I)THEN THE SPILL TRAVELED NORTHWEST APPROXOMENTLY 1500' DOWN THE CURB AND GUTTER, WHERE IT MADE IT INTO THE DROP INLET. (1. J & 1.K) AND THEN TRAVELED 464' NORTHEAST INTO AN OUTFALL AND AN OPEN STORM CONVEYANCE SYSTEM. 	Y	32.89313	-117.21801	32.89309	-117.21808	32.89627	-117.22116	32.89706	-117.22007	01/27/2025 09:55	THE SPILL VOLUME ESTIMATIONS WERE CALCULATED USING THE FLOW AND DURATION METHOD.	THE SPILL START TIME WAS WHEN THE CREW OBSERVED AND NOTIFIED ME OF THE BACKUP, AND THE END TIME WAS WHEN THE BLOCKAGE WAS RELIEVED AND CREWS CONFIRMED THE SPILL STOPPED.	Debris-General	NA	Gravity Mainline	NA	Vitrified Clay	NA	0	THE IMPACTS OF THE SPILL WERE TO THE STREET, CURB & GUTTER, AND THE STORM CONVEYACE SYSTEM.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	NA	THE FIRST CREW ONSITE SET UP CONTAINMENT IMMEDIATELY. THE SECOND CREW RELIEVED THE BLOCKAGE. THE THIRD AND FOURTH CREW SET UP SECONDARY CONTAINMENT AT THE STORM DRAIN OUTLET WHILE THE OTHER CREWS CONDUCTED CLEAN UP, SUCH AS WASHING DOWN THE STREET, CURB & GUTTER AND STORM DRAINS. 	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV	NA	THE CORRECTIVE ACTIONS OF THE SPILL WERE TO RELIEVE THE STOPPAGE USING A COMBINATION TRUCK (JETTER) AND TRAP THE DEBRIS. PLANS TO RECONSTUCT DUMP STATION ARE READY AND HAVE BEEN APPROVED. CHANGE FREQ TO 3 MONTHS.	RECONSTUCTION OF DUMP STATION. 	01/28/2025 11:27	AT THE LOCATION WHERE CREWS DUMP SOLIDS FROM THE COMBO TRUCK, A CREW ACCIDENTLY MOVED THE MANHOLE LID OVER, CAUSING DEBRIS FROM A PUMPSTATION CLEANUP TO ENTER THE COLLECTIONS SYSTEM, CAUSING THE BACKUP.	N	NA		UN-NAMED STORM CONVEYANCE CHANNEL	Other (specify below)	A STORM CONVEYANCE CHANNEL.	THE CONCRETE STORM CONVEYANCE CHANNEL WAS OVERGROWN WITH TREES AND PLANTS.	NO IMPACTS TO AQUATIC LIFE.	Other (specify below)	THERE WAS NO PUBLIC ACCESS AT THIS LOCATION.	NA	0	N	N	NA	NA									NA	
4	4SSO10397	Active	La Canada Flintridge City CS	La Canada Flintridge City	898895	1.2	Certified	May Hong	Civil Engineer	28-JAN-25	06-FEB-25	06-FEB-25	Category 1 Spill	1796 - 0351 (4531 Palm Drive, La Canada Flintridge, CA).	01/23/2025 23:00	01/24/2025 00:50	01/23/2025 22:27				CSMD Map Sheet No. 1796 Manhole No. 351 MMS No. 9205161B Manhole No. 351 was up but not overflowing.	34.2137	-118.21762	Manhole			100	Upon arrival, Manhole No. 351 was not actively overflowing, but there were signs of a previous overflow. Approximately 100 gallons of sewage escaped into the catch basin/storm drain. 	Y	Approximately 100 gallons of sewage escaped into the catch basin/storm drain at 4510 Palm Drive.	0	100	Approximately 100 gallons of sewage escaped into the catch basin/storm drain at 4510 Palm Drive, which would likely flow into local storm drains and creeks, eventually reaching the Los Angeles River and Pacific Ocean.	100	0	Drainage Conveyance System that discharges to surface water		Approximately 100 gallons of sewage escaped into the catch basin/storm drain at 4510 Palm Drive, which would likely flow into local storm drains and creeks, eventually reaching the Los Angeles River and Pacific Ocean.	Y	34.2129	-118.21724							01/24/2025 01:15	CWEA SSCSC Manhole Gauge.	The start time is obtained from the reporting party, and the end time is determined when the crew clears the obstruction, and the overflow stops.	Debris-Rags; Root Intrusion		Gravity Mainline		Vitrified Clay		47	Approximately 100 gallons of sewage escaped into the catch basin/storm drain at 4510 Palm Drive, which would likely flow into local storm drains and creeks, eventually reaching the Los Angeles River and Pacific Ocean.	N	Cleaned Up (specify below); Other Enforcement Agency Notified		Upon arrival at 4532 Palm Drive, Manhole No. 351 was up but not overflowing, but it showed signs of overflow. Hydro equipment was used to break down the mainline blockage caused by roots and rags. All required agencies were notified.  	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Adjusted existing hydro preventive maintenance from Manhole No. 351 to T/L. 	90-day Hydro periodic.	01/24/2025 01:50	Roots / Rags	N			Los Angeles River	River; Stream/Creek		Approximately 100 gallons of sewage escaped into the catch basin/storm drain at 4510 Palm Drive, which would likely flow into local storm drains and creeks, eventually reaching the Los Angeles River and Pacific Ocean.	No impacts.	Other (specify below)	No impacts.	N/A	0	N	N												
2	2SSO10185	Active	Sanitary District #2 Of Marin CS	Sanitary District #2 of Marin	898904	1.2	Certified	Chris Good	Senior Civil Engineer	28-JAN-25	28-JAN-25	28-JAN-25	Category 1 Spill	35 Antilles Way	01/27/2025 09:55	01/27/2025 10:10	01/27/2025 09:15	01/27/2025 11:32	25-0403		The spill came from manhole H-8_200 adjacent to 35 Antilles Way in Tiburon, CA.	37.91295	-122.4787	Manhole			166	The spill came out of manhole H-8_200 in the road, traveled 5' across the road and 254' in the south gutter to a catch basin at the intersection of Antilles Way and Martinique Ave. From there the spill traveled 332' through the storm system and discharged into the San Francisco Bay.	Y	The spill reached the catch basin at the intersection of Antilles Way and Martinique Ave and traveled 332' through concrete culverts before discharging into the San Francisco Bay next to 174 Trinidad Drive.	29	0	The storm system discharges into the San Francisco Bay through a 48  pipe. It was high tide during the spill, so the pipe outfall was submerged.	132	34	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		Spill traveled from manhole H-8_200 down the south gutter of Antilles Way to the catch basin at the intersection with Martinique, then through culverts to the outfall at 174 Trinidad Dr into the SF Bay.	Y	37.91249	-122.47715							01/27/2025 10:23	Town staff used the duration and flow rate comparison method and upstream lateral connections method. Staff decided that the upstream connections method was more accurate at estimating the total volume of the spill.	Staff used a eye witness report for the start time of the spill. The end of the spill was when staff removed the blockage using the vactor.	Root Intrusion	The root ball that blocked the sewer main was cut from somewhere upstream. Staff believe that a plumber cut the rootball from a private lateral and the rootball snagged on a slight offset joint in the main causing the backup and spill.	Gravity Mainline	Blockage was approximately 3' downstream from H-8_200	Vitrified Clay		65	There was no impact from spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Marin County EHS notified.	Maintenance staff sandbagged the catch basin, cleared the blockage with vactor to restore flow, washed and cleaned out storm system, and washed and cleaned up road and gutter on Antilles Way.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Staff inspected the pipe section from H-8_200 to H-8_180 with CCTV on the same day as spill and will return to CCTV in 3 months to check if there is any root intrusion or other issues. Considering that the roots did not grow in this section of pipe, additional cleaning would not have reduced the risk of spill, however staff will monitor this location more frequently. District will also send out fliers to residents and plumbers warning against allowing cut roots to enter sewer main.	Additional CCTV in April 2025. Hand rodding of pipe will be scheduled annually and increased if CCTV shows any root intrusion. 	01/28/2025 14:35	Town staff measure the distance to blockage when clearing line and CCTV'd the line shortly after the spill. The sewer main was found to be in very good condition with only a minor offset joint 3' downstream from manhole H-8_200. Staff believe that a plumber cut a large root ball from a private lateral which traveled into the sewer system and snagged on the pipe offset causing the backup. 	N			San Francisco Bay	Ocean		Storm system drains to channel in Paradise Cay which drains directly to SF Bay.	None	Other (specify below)	None	N/A	0	N	N	Marin County EHS recommended no samples were needed for this spill due to low volume of spill.											
2	2SSO10168	Active	Redwood City CS	Redwood City	898910	1.1	Certified	Robin Kim	Public Works Superintendent		28-JAN-25	28-JAN-25	Monthly Category 3 Spill	2425 Whipple Ave	12/09/2024 14:44	12/09/2024 15:07	12/09/2024 14:38				Spill originated from the property line cleanout at 2425 Whipple Ave located at 37.48124680929379, -122.25122786799902	37.48124681	-122.2512279	Lateral Clean Out (Private)			58	Spill came out of property line cleanout in the front yard of 2425 Whipple and spilled to the sidewalk, planter strip, and curb and gutter on Whipple towards Nevada.	N						58	Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		The spill spread northbound on Whipple and stopped along the curb and gutter at the side of 2403 Whipple; spill did not reach the intersection of Whipple and Nevada.	Y	37.48149505	-122.2509862							12/09/2024 15:36	Measurements were taken at the front yard of 2425 Whipple and along the curb and gutter from 2425 Whipple to 2403 Whipple. As the curb and gutter were sloped, calculations were done to account for the triangular area of the gutter. Areas in the front yard and planter strip were saturated, and during cleanup staff used a shovel to get to dry soil where we later took measurements.	The property owner of 2425 Whipple Ave notified the City at 2:44pm of a spill that had already started. Spill rate was estimated to be very low (1gpm) as the spill was coming out of a property line cleanout (4  lateral) very slowly. Based on measurements of the affected areas, volumes were calculated and added together for a total spill volume of 58 gallons. Working backwards from the spill end time of 3:36pm, and using a reasonable assumption of 1gpm, we estimate the spill start time to be 2:38pm.	Debris-General		Gravity Mainline		Other (specify below)	HDPE	17	The spill was contained to paved and unpaved areas. The paved areas included a concrete sidewalk and curb and gutter. The two unpaved areas included a planter strip that had some plants and thick layer of wood chips and the front yard of 2425 Whipple which had soil and some grass.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		The downstream manhole was not surcharged and the lateral from 2425 Whipple was the only connection upstream of the blockage that was affected. The First Responder put down a drain cover at the nearest storm inlet on Nevada. Staff flushed from the downstream manhole and cleared general debris from the sewer main and restored flow. Staff vaccuumed up the spill from the front yard of 2425 Whipple, and all wetted soil was removed for disposal. The front yard was hosed down afterwards and staff sprayed disinfectant. Staff washed down and disinfected all other paved (sidewalk, curb and gutter) and unpaved (planter strip) surfaces. A layer of wood chips was removed from the planter strip for disposal. All wash water was vaccuumed and returned to the sanitary sewer system.	Post Spill CCTV		Staff CCTV'd the 8  sewer main line and confirmed no further cleaning activities were necessary and no repair was required. Staff also CCTV'd the lower lateral for 2425 Whipple and found it to be structurally sound with no offsets or root intrusion. All spill sites are put on an annual list to revisit for more frequent maintenance in the upcoming year to prevent reoccurrences.		12/09/2024 16:52	Follow-up CCTV inspections of the main and lateral showed no major offsets, root intrusion, or FOG build-up. During the spill response, as staff were clearing the blockage, they noted general debris which was determined to be the cause of the spill. 		No additional investigation required as there was no repair required for the lower lateral of 2425 Whipple or the sewer main from the lateral connection to the downstream manhole.	12/10/2024 10:30														Not applicable	This is a relatively newer main segment with no prior history of issues. All spill sites are put on an annual list to revisit for more frequent maintenance in the upcoming year to prevent reoccurrences.	All spill sites are put on an annual list to revisit for more frequent maintenance in the upcoming year to prevent reoccurrences.	Not applicable	Staff CCTV'd the 8  sewer main line and confirmed no further cleaning activities were necessary and no repair was required. Staff also CCTV'd the lower lateral for 2425 Whipple and found it to be structurally sound with no offsets or root intrusion. All spill sites are put on an annual list to revisit for more frequent maintenance in the upcoming year to prevent reoccurrences.	Not applicable	All spill sites are added to list to revisit for maintenance in the upcoming year.	Not applicable.	No additional investigation required as there was no repair required for the lower lateral of 2425 Whipple or the sewer main from the lateral connection to the downstream manhole.	
4	4SSO11423	Active	Long Beach Water Dept. CS (SSO program)	Long Beach City, Water Dept	898917	1.1	Certified	Jennifer Rojas	Senior Director		21-FEB-25	21-FEB-25	Monthly Category 3 Spill	6145 Cherry Ave Long Beach CA	01/20/2025 17:04	01/20/2025 17:55	01/20/2025 17:04				The spill originated from a city sewer manhole within the public right-of-way, affecting the curb, gutter, and a nearby LACFCD catch basin.	33.86636	-118.16897	Manhole			90	The spill left the system and traveled one block down the street into the conveyance system. Approximately 3 gallons reached the storm drain's catch basin. Ocean Blue Contractors fully recovered and cleaned up the spill.	Y	A small portion of the spill affected a LA County catch basin. The purpose of this system is to collect runoff from Cherry Ave and transport it to other storm water conveyance systems.	3				90	Drainage Conveyance System; Street/Curb and Gutter (2 3)		The spill originated from a manhole in the city sewer system.  The wastewater flowed along the street's curb and gutter, entering the Los Angeles County storm drain catch basin. Efforts were made to contain the spill using sandbags to prevent further contamination.	Y	33.86562	-118.16868							01/20/2025 18:15	The affected curb and gutter area was measured at 278 ft (length) x 0.5 ft (width) x 1 in (0.0833 ft depth). Using the conversion factor of 7.48 gallons per cubic foot, this equates to approximately 86.64 gallons. The catch basin, with dimensions of 3 ft (length)  x 5 ft  (width) and a water depth just of 1/4 in (0.020 ft), was calculated to contain about 2.33 gallons, but rounded up to 3 gallons. This brings the total estimated volume to 89.64 gallons, or roughly 90 gallons overall.	By the time the operator arrived, the sewage was no longer spilling from the manhole. However, a passerby reported noticing water emerging from the manhole around 5:04 PM, when they made notification to LBU dispatch.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		90	The impact on the residents was minimal, Ocean Blue Contractors fully recovered the spill and cleaned up the affected area.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Spill Containment: An overflow from a city sewer manhole resulted in an estimated 90-gallon sewage spill. Immediate containment measures, including the deployment of barriers, were implemented to prevent further spread of the contamination.  Cleanup Efforts: Ocean Blue Environmental promptly initiated cleanup operations to address the spill on the street and within the conveyance system. The remediation process involved the use of both a pressure washer and a vacuum truck to remove 90 gallons of sewage from curb, gutter, and catch basin. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		The pipe segment underwent comprehensive hydro-jetting and has been designated as a hotspot. It will be placed on a temporary repeat maintenance list until our health department completes a FOG inspection on the restaurant's grease interceptors. During this period, the segment will receive frequent attention as part of our rigorous preventive maintenance program, with our staff strictly adhering to proper cleaning protocols.		01/20/2025 20:45	On 1/21/2025, a post-CCTV inspection was conducted to investigate the cause of the main line stoppage. The inspection revealed that the main cause of the stoppage was grease. To address this issue, a thorough hydro-jetting process was performed on the affected pipe segment. This process effectively removed the accumulated grease and restored the flow of wastewater.		There is no ongoing investigation by LBU at this time.	01/21/2025 10:48														The Long Beach Health Department was notified.	This pipe segment has been added to our list of hotspots that require more frequent attention. We'll work with the Health Department to  investigate the reason for the grease discharge by conducting a FOG inspection. 	This Pipe segment will be maintained every 90-days, as part of our hotspots List.	There is no planned rehabilitation or replacement of this segment.	CCTV inspections were conducted to identify the cause and precise location of the grease blockage. Once the cause and location were determined, appropriate measures were taken to thoroughly clean the blockage and interior walls.	None Planned.	The segment will be added to our repeat hotspot list for more frequent monitoring. Additionally, a FOG inspection will be conducted, and the Long Beach Health Department will retain the inspection records.	We will continue following our spill response procedures on containment and clean-up efforts.	There is no ongoing investigation by LBU at this time.	
5F	5SSO10771	Active	Tuolumne Utilities District CS	Tuolumne Utilities District	899353	1.2	Certified	Aidan Whitmer	Collections Foreman	30-JAN-25	11-FEB-25	11-FEB-25	Category 1 Spill	Cabezut Road/Covey Circle West Intersection	01/29/2025 05:30	01/29/2025 06:07	01/29/2025 05:00	01/29/2025 08:46	25-0434		Spill originated from a manhole in the East bound lane of Cabezut road in the southwestern intersection of Covey Circle and Cabezut Road.	37.9873	-120.36505	Manhole	N/A	N/A	168	Spilled from manhole in the street and ran down the road to a nearby storm drain inlet.	Y	Spilled into a small storm drain that transported the sewer roughly 400 feet over to a large storm drain containing the small tributary creek that feeds into Sonora Creek.	50	118	Discharged from small storm drain into a large storm drain carrying a small tributary creek that feeds into Sonora Creek. The sewage spilled into the creek running inside a large drain pipe under North Cedar Road	118	50	Drainage Conveyance System that discharges to surface water	N/A	Sewage spilled from a manhole, ran down cabezut road to a Drain inlet. The sewage then ran down a small storm drain to another D.I. down on North Cedar Road where the smaller storm drain dumps into a larger pipe that is carrying a small tributary creek. 1d & 1e is the manhole where spill originated. 1f &1g is the drain inlet where the sewage first made entry into the storm drain system. 1h & 1i is the drain inlet where the storm drain meets the creek.	Y	37.98729	-120.36506	37.98694	-120.36527	37.98677	-120.36622			01/29/2025 06:35	Spill volume was calculated using the Sewer Spill Estimation Guide developed by the Orange County Area Waste Discharge Requirements Steering Committee. For this spill, I measured a 1  semicircular pick hole with a 1  tall plume of sewer being expelled from it. My calculations show a total of 1.77 Gallons Per Minute for an estimated 95 minutes.	A coworker reported this spill to another coworker at 05:30 on his way to work. It was similar to the last time this spill happened. The water had not yet made it to the storm drain and it was just a fairly small wet area around the manhole, most likely because the mornings flows were just beginning to hit that manhole around this time as the neighborhood began waking up and using water. By the time I arrived on site at 06:07 the sewer had just made it to the storm drain and the spill area on the street had grown. Just like the previous spill, there was no coloration or scum/ grease layer on the road.	Other (specify below)	This spill was caused by a locating wire falling into the invert of the manhole, catching rags and wipes causing the manhole to backup and spill. I believe the original clip holding the wire in place at the top of the manhole had rusted out and become compromised. I think when my crew cleared the previous blockage on this manhole and cleaned the lines with the jetter, they may have messed with the wire just enough to cause the clip to finally fail. At some point over the course of the next week, the clip holding the locating wire in place did fail and the wire fell down into the invert. 	Manhole	N/A	Polyvinyl Chloride (PVC)	N/A	20	The spill had no known impact on life or health. very little solids escaped the manhole, it was mainly just liquids. The Creek does not show any impact of the spill. There is no visible sewer in the creek and we have not seen any dying aquatic life or plants. There does not appear to be anything out of the ordinary.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	I arrived on site first and began trying to unplug the manhole and investigated the extent of the spill. Once my guys arrived, we immediately set up a vacuum truck on the manhole that was spilling to end the spill as quickly as possible. Once we got the manhole emptied and the blockage was cleared, we washed off the road with disinfectant and water while vacuuming all the cleanup water. Afterwards we flushed the storm drain with disinfectant and water and vacuumed all of this water at the next access. We filled the rest of the vacuum truck up with water from the creek at the point where the sewer spill met the creek, hoping to capture as much of the sewer as possible.	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect	N/A	We completed a confined space entry to trim edges of the pipe downstream to assure no rags catch on the pipe. We are also going to be sending out a robo-call to all customers that are connected to this line, reminding them what they can and cannot flush into the sewer system. I installed a large nail at the top of the manhole and wrapped the locating wire around it to be sure the wire will not fall again.	Confined Space entry completed, Robo call is being set up currently, nail is installed as a locating wire hanger.	01/30/2025 10:02	This spill was caused by a locating wire falling into the invert of the manhole, catching rags and wipes causing the manhole to backup and spill. The original clip holding the wire in place at the top of the manhole had rusted out and become compromised. I believe when my crew cleared the previous blockage on this manhole and cleaned the lines with the jetter, they may have jostled the wire just enough to cause the clip to finally fail. At some point over the course of the next week, the clip holding the locating wire in place did fail and the wire fell down into the invert. 	N	N/A		Sonora Creek	Stream/Creek	This spill flowed into a tributary to Sonora Creek, eventually Sonora Creek flows into Woods Creek, eventually Woods Creek flows into Don Pedro Reservoir.	Sonora creek is a small creek that flows heavily in storms and has very little water flowing otherwise.	No observed impacts on aquatic life. The aquatic life seems to be unaffected by this spill.	Other (specify below)	Posted contaminated water signs around nearby creek accesses.	Tuolumne	5	N	N	N/A	N/A									N/A	
2	2SSO10158	Active	Mt. View SD CS	Mt View Sanitary District	899360	1.3	Certified	Stacey Ambrose	Deputy General Manager		06-FEB-25	06-FEB-25	Monthly Category 3 Spill	40 Rutherford Lane	01/16/2025 19:55	01/16/2025 20:19	01/16/2025 17:45				see the field report attachment	38.00018	-122.07565	Lateral Clean Out (Private); Other (specify below)	We estimated roughly 3 gallons spilled over her shower pan.  we had to make an educated guess based on the number of towels it took to absorb the water and the amount of affected carpet area.  The resident did not enter the bathroom until after it had drained but did state it was a very short time, and then her building cleanout started spilling.		160	The spill was all contained in the front yard and side yard of the resident's home.   approx. 6 ft. x 21ft in the front yard and 17ft x 3ft in the side yard.  It was partially absorbed in the dirt and entered into a French drain system with a basin and a pump.  The pump was off and not working at the time.  see attachments	N						145	Building or Structure; Other (specify below)	The spill was contained in the front yard and the side yard of the residence. 	The spill was contained in the front yard and the side yard of the residence.  GPS coordinates are lon: 38.00018  lat: -122.07565.	Y	38.00018	-122.07565							01/16/2025 22:13	We used 3 different methods to estimate the volume of this spill. 1: upstream connections method 2: duration and flow rate comparison method. 3: staff made a 6  cleanout mock-up with a flow meter on it to mimic the spill to try and get the most accurate volume.  video attached  20 4-gallon buckets of water were retrieved and put back into the sewer system equaling 80 gallons total.  We pumped the French drain basin until completely dry. The calculated volume based on measurement of the basin equaled a total of 65 gallons.  recovery of 80 gallons + 65 gallons to equal 145 gallons recovered.  	The resident stated that she left the house for less than an hour to run an errand, and that was around 5 pm. She returned at 6 pm, and that's when she noticed her bathroom floor was wet.  we believe her cleanout popper malfunctioned at first and then relieved itself, and that's why her shower pan drained.  Due to her leaving the home at 5 pm and returning at 6 pm, we rolled the time back 15 min from when she noticed the spill occurring, and that would be 5:45 pm on 1/16/25. The spill end time was confirmed at 10:13 pm once the mainline blockage was broken and staff visually witnessed the cleanout not spilling.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		75	see attachment field report	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Called Carl Warren for the small in-home cleanup.  We cleaned up all areas affected outdoors, and removed the top 2-3 inches of affected dirt area and brought it to our treatment plant.  We sprayed all absorbed dirt areas with liquid enzymes.  (irrigation system throughout the area, so dirt is naturally saturated).  We covered the affected dirt area with scented absorbent. We removed all water from the French drain basin until it was completely dry and sprayed that down with liquid enzymes as well.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		We are increased this specific line segment's cleaning schedule.  We added it to our high-frequency cleaning schedule, where it will be cleaned at least once per year.  We CCTVed the sewer mainline to check the condition of the pipe.		01/28/2025 16:00	MVSD staff had to break the blockage from an upstream lamp hole/rodding inlet.  The expertise of the operator in understanding the physical feeling of an FOG blockage, as well as pulling back small pieces of FOG on our jetter hose, was our main indicator it was an FOG blockage.		MVSD will be in contact with the restoration company as well as Carl Warren and Company during the restoration process.	01/16/2025 22:20														NA	Increase cleaning schedule	Increase cleaning schedule	The District is currently nearing the 3rd and final stage of our whole system cleaning and televising project.  With the data received, all defective lines will be scored, prioritized, and put into our future CIP project.	no	Pending completion of whole system cleaning and televising project results.	yes	none	MVSD will be in contact with the restoration company as well as Carl Warren and Company during the restoration process.	
3	3SSO10320	Active	San Luis Obispo CS	San Luis Obispo City	899364	1.2	Certified	Ryan Beech	WWC Supervisor 	29-JAN-25	29-JAN-25	29-JAN-25	Category 1 Spill	1023 Chorro	01/24/2025 13:33	01/24/2025 13:47	01/24/2025 13:30	01/24/2025 15:20	25-0358		The city biologist noticed a small amount of water spilling from the sewer mainline that runs above the creek near 1023 Chorro . The spill was caused by a pinhole leak in the cast iron pipe suspended above the creek.   	35.29279	120.66321	Gravity Mainline	Cast iron pipe suspended above San Luis creek.	N/A	35	The spill was coming directly from the main line suspended above the creek. 	N				The spill was coming directly from the main line suspended above the creek. 	35	45	Surface Water	N/A	WWC staff were alerted by the city biologist while he was during a creek inspection. When he first entered San Luis Creek, there was no spill, but upon returning, he noticed that the main line running above the creek had started to leak. The spill was traced back to a pinhole leak in the cast iron pipe suspended over the creek.	Y	35.2802	120.66321							01/24/2025 14:27	Staff placed a 5-gallon bucket under the sewer discharge and timed how long it took to fill. Using this, they calculated the flow rate from the damaged mainline.	The methodology was based on input from the city biologist, who was working in San Luis Creek, as well as his firsthand account, which helped pinpoint the exact time the sewer discharge began.	Collection System Maintenance Failure (specify below)	The cast iron mainline had a pinhole, which caused the leak.    	Gravity Mainline		Cast Iron		22	The spill affected the water quality in San Luis Creek and had a negative impact on the environment.	N	Mitigated Effects of Spill (specify below); Returned Portion of Spill to Sanitary Sewer System		WWC staff responded quickly to mitigate the spill by using a bucket to contain the discharge and a repair clamp to fix the pinhole in the 8-inch sewer mainline.	Plan Rehabilitation or Replacement of Sewer		WWC staff installed a repair clamp and are actively coordinating with a contractor to install a CIPP line on February 17, 2025.	Sancon is scheduled to mobilize equipment and crews on 2/16/2025 and will begin night work to install a CIPP liner in the 8-inch sewer mainline on 2/17/2025.	01/24/2025 15:00	Following a thorough investigation of the sewer mainline, it was found that the section of cast iron pipe suspended over San Luis Creek had a pinhole leak. In response, staff installed a repair coupler to temporarily stop the leak until a CIPP liner can be installed.	N			San Luis Creek 	Stream/Creek		San Luis Creek is a natural stream that flows through the area, providing a habitat for wildlife and contributing to the local ecosystem. 	Staff did not observe any impacts to aquatic life.  	Restricted Public Access		City of San Luis Obispo 	0	N	N												
5F	5SSO11311	Active	MD-22A Oakhurst CS	Madera County Public Works Department - Special Districts	899377	1.2	Certified	Chad Brown	Utility Manager		30-JAN-25	30-JAN-25	Monthly Category 3 Spill	Woodbend Lane MH#9	01/29/2025 04:54	01/29/2025 05:26	01/29/2025 04:45				Single Manhole overflow approximately 50 Gals.	37.32716	-119.66463	Manhole			50	Small overflow from manhole into surrounding dirt around manhole 	N						0	Unpaved Surface		Spill spread 15' downhill from manhole and absorbed into dirt 	Y	37.32716	-119.66463							01/29/2025 18:30	 By the Volume of measurement to ground saturation.	Estimated from the volume of 50-gallon drum.	Debris-Rags		Gravity Mainline		Polyvinyl Chloride (PVC)		40	N/A	N	Cleaned Up (specify below)		Restored flow and picked up rags and debris.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		Quarterly collection Maintenace 		01/29/2025 08:00	Due to non-disposable rags built up to interrupt gravity flow.		N/A	01/30/2025 10:00														N/A	Quarterly collection cleaning (Flushing /Rodding) 	N/A	N/A	Annual inspection of collection system	N/A	N/A	N/A	N/A	
2	2SSO10184	Active	San Rafael SD CS	San Rafael Sanitation District	899389	1.3	Certified	Philip Buckley	Principal Civil Engineer	30-JAN-25	31-JAN-25	31-JAN-25	Category 1 Spill	820 Mission	01/27/2025 13:55	01/27/2025 14:26	01/27/2025 13:30				The contractor working at 800 Mission (John Martin) notified us of sewage coming out of the ground behind the sidewalk between 800 & 820 Mission.  He said his crews noticed it at 1330 hours. Contractor called the City of San Rafael DPW and his call was transferred to a SRSD voice mail box.  When SRSD admin returned his call at 1355 hours, he detailed what was observed.	37.9745100852	-122.52413181	Other (specify below)	Sewage was witnessed coming out of the ground behind the sidewalk between 800 & 820 Mission.  We believe this is over a private lateral for 820 Mission.		59	Once spill daylighted it traveled across the sidewalk to the gutter pan where it continued down.  Approximately 60' down there is a 1.5  hose pumping ground water discharge into the gutter pan.  This ground water mixed with sewage and continued down to the catch basin near the intersection of Mission and Lincoln.   	Y	The catch basin then travels approximately 660' underground before it enters Erwin Creek under Highway 101.  	13	46	Inspection of Erwin Creek did not show evidence of sewage.  We calculated the  collected water from spill appearance point, sidewalk and gutter pan to where the ground water discharge hose.  We cleaned the entire length of the street curb and gutter plus the drainage pipe between the catch basin and creek but do not know what was collected because of the continuous ground water discharge.  	46	13	Surface Water		Erwin Creek under highway 101	Y	37.973944	-122.521288							01/27/2025 14:35	Based on upstream lateral connections and MMWD water consumption reports.  828 Mission is a multi unit complex with 13 units using 124 gallons per day.  820 Mission is a commercial business it uses 21 gallons per day.	The upstream lateral connection for total run time of 65 minutes	Debris from Construction	We removed rock and gravel from 70' upstream of the manhole.  This is the same location of an old lateral for 800 Mission.  We are unsure if that lateral was capped prior to earth work and construction of new building.	Upper Lateral		Vitrified Clay		54	Due to continuous water being discharge from 800 Mission ground water discharge, the spill that entered Erwin Creek has been completely flushed downstream	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		cleaned spill appearance point, sidewalk, gutter pan, storm drainage pipe.  collected all wash water and returned to sanitary sewer system	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Reviewing plans and inspector reports to see if old lateral was capped prior to construction of new building.	plan to replace main and lower laterals with an ongoing CIP project within the next four months. in the meantime, the pipe has been added to preventive maintenance program to see if rock is still entering through lateral	pipe will be cleaned every 6 months (if not completely replaced prior to then) 	01/27/2025 15:00	We are unsure if old lateral was capped prior to earth work of new building site.  	Y	to see if rock and debris continue to enter through old lateral	02/27/2025 14:30	Erwin Creek	Stream/Creek		It's a creek that flows under highway 101 and eventually enters San Rafael Creek	none	Other (specify below)	no public access	Marin County Environmental Health Services	0	N	N											to see if rock and debris continue to enter through old lateral	
1	1SSO10086	Active	Yreka City CS	Yreka City	899411	1.2	Ready to Certify						Monthly Category 3 Spill	416 Butte Street	12/29/2024 09:23	12/29/2024 09:42	12/29/2024 09:00				spill appeared through a cleanout on homeowners front yard 	41.73023	-122.64017	Lateral Clean Out (Private)			366	spill boundaries were homeowners front yard and basement	N						120	Building or Structure; Unpaved Surface		spill was calculated at 1165 square feet of manicured front lawn and concrete basement floor 										12/29/2024 09:56	ponded sewage calculation was used to estimate volume 	used GIS to create polygon for spill boundaries.  Estimated spill was 1/2  Deep.  Calculated to cubic feet then multiplied by 7.48 to get gallons.  Estimated that 120 gallons were in Vacuum truck when returned to WWTP. 	Debris-Rags; Root Intrusion		Gravity Mainline		Vitrified Clay		75	spill was mostly absorbed into manicured lawn but also entered property owners basement causing significant damage to property stored on ground. 	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Returned Portion of Spill to Sanitary Sewer System		A vacuum truck was used to suck approximately 120 gallons of the spill from front lawn.  City contacted ServePro and insurance to initiate cleanup in homeowners basement. 	Adjusted Schedule/Method of Preventive Maintenance; Post Spill CCTV		Hire Dukes Root Control to apply root treatment in sewer line segment.  Create Reoccurring work order in asset management software to create task for more frequent cleaning.  		12/29/2024 13:30	Roots and rags were pulled back when line was cleaned to relieve blockage in mainline 		Insurance is working with City and homeowner on cleanup efforts 	02/14/2025 13:27														None.  Only insurance was contacted 	Root treatment and more frequent cleaning 	Yes.  Work order will create task for biannual cleaning.  	Not at this time, but will be prioritized in next Capital improvement project 	Mainline was jetted and properly cleaned 	None at this time 	Sewer cleaning work orders recorded on Cartegraph our asset management software. 	Spill response wens smoothly.  No changes made. 	Insurance is working with City and homeowner on cleanup efforts 	
3	3SSO10340	Active	Gilroy CS	Gilroy City	899430	1.2	Certified	Matthew Jones	Deputy Director of Public Works		24-MAR-25	24-MAR-25	Monthly Category 3 Spill	2320 Stonecress St	01/27/2025 13:11	01/27/2025 13:15	01/27/2025 13:10				Spill appeared from manhole in dirt field easement. Pictures attached 	37.02284	-121.62158	Manhole			100	spill occurred at manhole and flowed to area in dirt 90' x 7' around manhole  photos submitted 	N						0	Other (specify below); Unpaved Surface	Dirt Field	Spill destination includes coordinates provided and a 90' x 7' area around manhole	Y	37.02284	-121.62158							01/27/2025 13:30	Spill was calculated using measured gallons	assumptions are based on crew arrival and crew observations of flow and spill dimensions	Debris-General; Root Intrusion		Gravity Mainline; Manhole		Vitrified Clay		5	impact of spill includes public not having access for the duration of the event   	N	Restored Flow		spill response included restoring flow and treating spill with enzyme and posting signs of spill for public warning	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below)	treat for roots	corrective actions included treating for roots 		01/27/2025 14:00	Investigation findings are that roots along with debris infiltrated the line and caused the stoppage. Roots were cleaned, removed and treated		N/A	01/28/2025 09:30														N/A	treating for roots as main runs thru a rural area	N/A	N/A	N/A	N/A	None needed at this time	None needed at this time	N/A	
8	8SSO10561	Active	San Bernardino City CS	San Bernardino City Municipal Water Dept	899431	1.1	Certified	Juan Martinez	Superintendent		03-FEB-25	03-FEB-25	Monthly Category 3 Spill	959 WEST ORANGE STREET	01/21/2025 19:00	01/21/2025 19:40	01/21/2025 18:55				The sewer main between Maintenance Hole #0550067 and M/H #0550069 was found to be partially blocked with debris, causing a system surcharge. About 50 gallons of sewage was estimated to be spilled out of M/H #0550067. This caused dwelling at 959 West Orange St to back-up. 	34.12057	117.30495	Manhole	N/A	None	50	Please see attached. 	N	N/A	0				0	Paved Surface; Street/Curb and Gutter (2 3)	N/A	he sewer main between Maintenance Hole #0550067 and M/H #0550069 was found to be partially blocked with debris, causing a system surcharge. About 50 gallons of sewage was estimated to be spilled out of M/H #0550067. This caused dwelling at 959 West Orange St to back-up. Spill from system manhole only reached paved street and curb/gutter	Y	34.12057	117.30495							01/21/2025 21:17	Estimated calculations were determined by assessing spill and using length x width x height, to include estimated time of spill and known present factors at time of arrival to location. 	data includes but not limited to, time of initial call/report, time of arrival, visual inspection of spill and utilizing best management practices and mathematical calculations.  	Debris-General; Debris-Rags	N/A	Manhole		Concrete; Vitrified Clay	N/A	30	The sewer main between Maintenance Hole #0550067 and M/H #0550069 was found to be partially blocked with debris, causing a system surcharge. About 50 gallons of sewage was estimated to be spilled out of M/H #0550067, although the spill had stopped before staff arrived. Crews recovered 90% of the spill and the other 10 % was lost to absorption/evaporation. Approximately 50 gallons of disinfectant were used on the city street, and 100 gallons of potable water were used for washing down and cleaning up.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	Responded to spill, called out standby crews, located accessible manhole to break blockage and jet cleaned line. Conducted cleanup efforts by vacuuming spill and washing down and disinfecting area vacuuming all. Conducted a post-CCTV inspection of line. 	Inspected Sewer Using CCTV to Determine Cause	N/A	Line segment never had previous issues. Line segment was and will continue of the systems 2.5 year line cleaning schedule.  A Post CCTV inspection was conducted and findings showed line to be in flowing as per design.  		01/21/2025 08:53	Please see attachement.  		None at this time.  	01/21/2025 08:53														The RWQCB (Julio Lara) and SBCEH were emailed at 12:00 PM on Wednesday, January 22, 2025.	Line segment was added to the  Prior Spill  inspection list. Monthly visual inspection.  	Monthly visual inspection.  	None needed. Determination made after CCTV inspection.	CCTV inspection. 	None needed. 	CCTV inspection.  Addition to Monthly  Prior Spill  list.	No modifications. All spill response efforts were conducted as per section 6 of SSMP.  All protocols were followed. 	None at this time.  	
4	4SSO11365	Active	Unincorporated County Area CSMD South/County Sanitation District CS	Los Angeles Cnty DPW	899436	1.2	Certified	Eric Liu	Civil Engineer	03-FEB-25	10-FEB-25	10-FEB-25	Category 1 Spill	2219-0470 (1866 Clear River Lane, Hacienda Heights, CA). Unincorporated South	01/30/2025 12:35	01/30/2025 13:00	01/30/2025 12:25				CSMD Map Sheet No. 2219 MMS No. 9208115B Manhole No. 470 was overflowing.	33.9898	-117.94288	Manhole	Manhole No. 470		200	Sewage discharged from Manhole No. 470 into the storm drain.	Y	Sewage discharged from Manhole No. 470 into the storm drain at 1865 Coachwood Court, Hacienda Heights, CA.	0	200	Sewage discharged from Manhole No. 470 into the storm drain at 1865 Coachwood Court, Hacienda Heights, CA, which leads to a private drain, Pepperbrook Channel, an unknown drain/channel, and eventually to San Jose Creek, to U/S San Gabriel River. 	200	0	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Sewage discharged from Manhole No. 470 into the storm drain at 1865 Coachwood Court, Hacienda Heights, CA, which leads to a private drain, Pepperbrook Channel, an unknown drain/channel, and eventually to San Jose Creek, to U/S San Gabriel River. 	Y	33.99023	-117.94231							01/30/2025 13:30	CWEA SSCSC Manhole Gauge. Visual or Eyeball Method. 	The start time is obtained from the reporting party, and the end time is determined when the crew clears the obstruction, and the overflow stops. 	Root Intrusion		Manhole	Manhole No. 470	Acrylonitr. Butadiene Styrene (ABS); Other (specify below)	ABS Composite Pipe 	47	Sewage discharged from Manhole No. 470 into the storm drain at 1865 Coachwood Court, Hacienda Heights, CA, which leads to a private drain, Pepperbrook Channel, an unknown drain/channel, and eventually to San Jose Creek, to U/S San Gabriel River. 	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow		Upon arrival Manhole No. 470 was overflowing. Hydro equipment was used to break down the heavy root blockage in the mainline. Cleanup was performed, and all required agencies were notified. 	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Inspected sewer using CCTV and added sewer to 90 Days Rod Sewer-Periodic Cleaning-2 Sections.	Added sewer to 90 Days Rod Sewer-Periodic Cleaning-2 Sections.	01/30/2025 15:30	Roots	N			San Jose CRK-Thompson Crk to U/S San Gabriel River	River; Stream/Creek		Sewage discharged from Manhole No. 470 into the storm drain at 1865 Coachwood Court, Hacienda Heights, CA, which leads to a private drain, Pepperbrook Channel, an unknown drain/channel, and eventually to San Jose Creek, to U/S San Gabriel River. 	No impacts.	Other (specify below)	No impact. 	N/A	0	N	N												
1	1SSO11491	Active	Santa Rosa City CS	Santa Rosa City Utilities Dept	899437	1.3	Certified	Ron Marincic	Utility System Superintendent	03-FEB-25	03-FEB-25	03-FEB-25	Category 1 Spill	Ridley Ave	02/03/2025 00:32	02/03/2025 00:46	02/02/2025 23:42	02/03/2025 04:19	25-0533		Spill appearance point was out of gravity manhole.  Paved surface with concrete gutter.	38.448	122.746	Gravity Mainline; Manhole	N/A	N/A	825	Spill spread on asphalt roadway.(35.90 gallons) and onto gutter(3.45 gallons) which dropped into storm drain.	Y	Spill traveled approximately 34' in gutter until dropping into storm drain.  Then traveled approximately 415' to outfall at College Creek.	0	0	System is a closed storm drain traveling under paved road. 	786	39	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water	N/A	Spill traveled approximately 34' in gutter until dropping into storm drain.  Then traveled approximately 415' to outfall at College Creek.	Y	38.448	122.746							02/03/2025 04:57	Area calculation work sheets.  Volume estimation from manholes	Caller estimation of first observance and time blockage was broken	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)	N/A	Gravity Mainline; Other (specify below)	Not a system failure.	Other (specify below)	Lined pipe.	15	Minimal impact.  Spill occurred during a major rain event.  Spill area was cleaned and returned to pre spill condition. 	Y	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	Containment was initially attempted but not possible due to rain event.  Blockage was broken using cleaning truck.  Area of spill was washed down and vacuumed.  Storm drain cleaned(flushed).	Enforcement action against Fats, Oil, and Grease (FOG) source; Post Spill CCTV	N/A	CCTV'd area.  Performed outreach by placing door hangers in neighborhood for grease and wipes.	Immediately.	02/03/2025 04:57	Visible grease and wipes upon breaking of blockage.  Post spill CCTV to determine no defects in pipe.  Outreach performed by placing door hangers about grease and wipes.	N	N/A		College Creek	Slough; Stream/Creek		Seasonal, small creek. 	None	Other (specify below)	None	County Environmental Health.	0	N	N	N/A	N/A									N/A	
2	2SSO10189	Active	Sausalito CS	Sausalito-Marin City San District	899439	1.2	Certified	Jeffrey Kingston	General Manger	03-FEB-25	10-FEB-25	10-FEB-25	Category 1 Spill	850 Drake Ave	01/30/2025 09:40	01/30/2025 09:47	01/30/2025 09:15				Spill from Manhole #550403 near 850 Drake (Fire station). Appearance point of spill is the pick hole of the manhole. Spill rate was estimated to be 10 gpm.	37.874052	-122.512804	Manhole			430	Spilling from manhole picking hole. Flow from manhole into gutter pan and flowed downwards into the storm drain inlet basin.	Y	Basin dimensions 64 x42 x26 . Connected to Main storm water drainage pipe to bay. Vactor on site made a best effort to clean the basin however, due to high tide Bay water was flowing up into the storm drain system rather than water draining to the Bay. The Vactor removed approx 290 gallons of water from the basin but because this was mixed the recovered gallons will be reported as 0.	0	430	Photo of discharge point attached. Basin of the storm drain system with a gutter inlet. piping to basin connected directly to the Bay from inlet point.	430	0	Drainage Conveyance System that discharges to surface water		Spill entered storm drain basin connected to the main outlet pipe to bay. Coordinates 1.d. and 1.e. is inlet point. Coordinates 1.f. and 1.g. is outlet point.	Y	37.87361	-122.51241	37.87538	-122.50928					01/30/2025 09:58	Spill volume estimated by visual using comparison manhole spill photos included in the SMCSD sewer emergency response plan. Estimation was calculated by the amount of flow from the manhole picking hole.	Start time of 9:15 is the best and earliest time given by the contractors on site who noticed the start of the overflow, the spill was not active at 9:00 which was there arrival time to the job site. Spill end time of 9:58 was when bypass pumping started.	Inappropriate Discharge to Collection System	Construction debris found in 6  sewer piping between manholes. Large chunk of asphalt and brick.	Gravity Mainline	Debris recovered from gravity pipe which was the cause of the failure.	Vitrified Clay		60	Storm drain system impacted, flowed directly into the main basin connected to Richardson Bay outlet.	N	Cleaned Up (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Cleaned up area mostly standing water in locations, vacuumed storm drain basin as a best effort, blockage was removed from the sewer gravity line.	Upon arriving a bypass pumping system was setup to immediately stop the active overflow. Vactor crew was called to clean the sewer line. Storm drain basin inlet was protected upon arrival with sand bags and rubber matte, the storm drain basin was vacuumed as an effort to capture any remaining spill.	Other (specify below)	Construction Debris found in sewer gravity line.	Debris removed, currently investigating for source of the material. Debris suspected to have come from a housing development project upstream from spill location. Working with the Contractor to protect the sanitary sewer system moving forward.	N/A	01/30/2025 11:47	Suspect Debris from a housing development project upstream from the spill location. Working with the contractor to protect the sanitary sewer system. An old abandoned sewer lateral within the project is being replaced and the old connection point will be eliminated. For now a mechanical pipe plug will be installed to prevent any further debris from entering the sewer system.	Y	Temporary plugging of sewer lateral, contractor performing follow up TV work. Abandoning connection point with concrete as part of project.	02/10/2025 10:57	Richardson bay	Ocean		Richardson Bay is a large body of water connected to the Ocean.	none	Other (specify below)	No impact to public access.	N/A	0	N	N	N/A	N/A									Temporary plugging of sewer lateral, contractor performing follow up TV work. Abandoning connection point with concrete as part of project.	
2	2SSO10183	Active	San Mateo CIty CS	San Mateo City	899444	1.2	Certified	Tony Baltodano	PW Field Maintenance Manager	04-FEB-25	05-FEB-25	05-FEB-25	Category 1 Spill	Mariners Island 3 Force Main	01/31/2025 11:11	01/31/2025 11:39	01/30/2025 13:29	01/31/2025 13:28	25-0489		Force main break outside pump station, see attached	37.56203	-122.29006	Other (specify below)	Asphalt	Force main broke under asphalt, leaking/overflowing at asphalt/concrete edge	707	Overflowed directly to adjacent storm inlet with direct connection to marina lagoon, unable to vacuum	Y	storm inlet with direct connection to marina lagoon	0	707	Storm inlet	707	0	Drainage Conveyance System that discharges to surface water		Mariners Island 3 Force Main	Y	37.56203	-122.29006							01/31/2025 17:40	Spill volume was calculated utilizing the San Diego method and cross-checking information in SCADA to determine the number of minutes each pump ran and how many times each pump started.	SCADA information was used to determine how long each pump ran and the number of minutes each pump ran from start to stop levels. 	Damage by Others Not Related to Collection System Construction/Maintenance; Other (specify below)	Compression coupling shifted causing the lift station discharge pipe and force main connections to leak through less than 1/2 gap. 	Other (specify below)	System failure occurred approximately 4 feet underground. 	Concrete; Polyvinyl Chloride (PVC)		50	707 gallons overflowed to adjacent storm inlet with direct connection to Marina Lagoon and unable to vacuum. 	N	Restored Flow	Two new compression couplings were installed utilizing additional PVC pipe to get a better connection between the PVC and concrete pipes. 	When staff arrived, the pumps were immediately shut off to prevent leakage through the asphalt. Vactor trucks were used to keep the wet well below the high levels. 	Repaired Facilities or Replaced Defect	The single compression coupling that failed was replaced with 2 new compression couplings and added additional PVC pipes to make straighter connection. 	Current industry standard compression couplings were used to minimize future failure. 	At this time no further actions are needed. 	02/05/2025 17:40	Original compression coupling shifted underground causing leakage between joining PVC and Concrete pipe. 	N			Marina Lagoon 	Other (specify below)	Lagoon which then ends of in the bay after the pumps lower the lagoon water level 6 . 	Lagoon which then ends of in the bay after the pumps lower the lagoon water level 6 . 	None 	Other (specify below)	None	City of San Mateo Regulatory Compliance Department 	0	N	N												
1	1SSO10031	Active	Fortuna City CS	Fortuna City	899448	1.2	Certified	Jason Johnson	Utilities Superintendent	04-FEB-25	14-FEB-25	14-FEB-25	Category 1 Spill	12th Street at Loni Drive	02/03/2025 12:00	02/03/2025 12:00	02/03/2025 12:00	02/04/2025 09:40	25-0565	12-FEB-25	Manhole located at 12th Street and Loni Drive	40.592185	-124.1545099	Manhole			18000	Flowed into gutter, then into storm drain	Y	Storm drain to Creek	0	18000	Storm drain discharges into Rohner Creek	18000	0	Drainage Conveyance System; Paved Surface; Surface Water		Manhole at the intersection of 12th Street and Loni Drive	Y	40.592185	-124.1545099							02/03/2025 18:00	Hourly monitoring, using the  Reference Sheet for Estimating Sewer Spills from Overflowing Sewer Manholes   to calculate approximate GPM.	Crews were out monitoring known locations that SSOs occur due to excessive rain, once the discharge points were discovered, hourly checks were conducted, and GPM noted, until the overflow stopped. 	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Vitrified Clay		70	18,000 gallons spilled to storm drains leading to Rohner Creek, and ultimately the Eel River 	Y	Other (specify below)	No corrective action can be taken, spill was result of a heavy rain storm.	No corrective action can be taken, spill was result of a heavy rain storm.	Plan Rehabilitation or Replacement of Sewer		Spill was monitored, unable to clean-up due to heavy rains.	N/A	02/03/2025 18:00	Heavy rain storm caused SSO.	N			Rohner Creek, then Eel River	River; Stream/Creek		Rohner Creek and the Eel River	Sewer was highly diluted with rain water.	Other (specify below)	no public impact.	N/A	0	N	N												
1	1SSO10031	Active	Fortuna City CS	Fortuna City	899449	1.2	Certified	Jason Johnson	Utilities Superintendent	05-FEB-25	12-FEB-25	12-FEB-25	Category 1 Spill	Fortuna Fire Hall	02/03/2025 11:00	02/03/2025 11:00	02/03/2025 11:00	02/04/2025 09:30	25-0563		Manhole at fire station. 320 south Fortuna BLVD	40.5890802	-124.1483967	Manhole			42750	Spilled into a retention basin. 	Y	Entered in an overflow drain for the retention basin.	29000	13750	Discharge point was the retention basin overflow drain.	13750	29000	Drainage Conveyance System that discharges to surface water; Other (specify below)	Retention Basin, with overflow to Creek	Spill destination was a retention basin west of the manhole overflowing	Y	40.5890802	-124.1483967							02/03/2025 22:00	Hourly monitoring of SSO, using the Reference Sheet for Estimating Sewer Spills from Overflowing Manholes, GPMs were estimated every hour. The Vaccon truck was used to recover the spill, 29, 1000 gallon loads were recovered.	Crews were patrolling for SSOs in the locations they are known to occur due to very heavy rain, once observed by crews, hourly checks were conducted with GPM noted, until the SSO stopped.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Gravity Mainline; Manhole		Concrete		50	Spill ran into a collection basin and then overflowed into Rohner creek.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Returned Portion of Spill to Sanitary Sewer System		We retrieved 29,000 gallons from the retention basin	Plan Rehabilitation or Replacement of Sewer		There are plans in the works of replacing the line that is susceptible to storm SSOs 	N/A	02/05/2025 12:00	Heavy rain caused I and I.	N			Rohner Creek, then Eel River	River; Stream/Creek		Rohner Creek, then the Eel River	Sewer still was extremely diluted with stormwater 	Other (specify below)	None. Retention basin is on Private Property	N/A	0	N	Y	Sample location is the retention basin, sample was obtained after cleanup efforts.	BOD >0.1mg/L TSS 3.0mg/L										
1	1SSO10058	Active	Rio Dell City CS	Rio Dell City	899453	1.2	Certified	Sunshine Kelly	Wastewater Superintendent	04-FEB-25	04-FEB-25	04-FEB-25	Category 1 Spill	End of Painter Street Manhole	02/03/2025 06:00	02/03/2025 06:40	02/03/2025 04:30	02/03/2025 07:03	25-0534	18-FEB-25	The spill was located at the Painter Street manhole at 556 Painter St. Photos attached show spill location. 	40.503117	-124.093756	Manhole			110466	The spill was located at the Painter Street manhole and flowed down the gravel ditch away from the residential area toward the Eel River, river bar. Photos show the sandbags, and ditch in place to direct the flow away from the residential area. 	N				Pictures show the spill stream running toward the Eel River, and a picture of where the spill stream entered the rising Eel River.	70466	40000	Surface Water		The Spill flowed to the Eel River at Latitude/ Longitude: 40.503055, -124.091890.	Y	40.503055	-124.09189							02/03/2025 23:30	The volume estimation was based on flow monitoring at the site as well as supervisory control from SCADA based on the trend of the Painter Street lift station wet well level and pump control and the influent flow data into the plant. Volume estimation of spill recovery was based on the volume of the Vactor. the Vactor truck carries 2000 gallons and twenty full recoveries were completed during the duration of the spill. 	The methodology of the spill start time was based on supervisory control based on SCADA of the data collected on the Painter Street Pump station trend. We were prepared for the event and had sandbags, a ditch to convey the spill away from residential properties, signs posted and the Vac-Tor truck was on standby to respond once notified of spill.	Flow Exceeded Capacity (Separate Collection System Only); Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Other (specify below)	The failure is that the sanitary sewer main at this location was constructed with a 90 degree turn at this manhole and the earthquake in December of 2022 destroyed sewer mains, and the earthquake on December 5th, 2024 added to the damage of sewer mains, and private laterals, allowing more I&I to enter this portion of the sanitary sewer system. An upsizing project for this section of the sanitary sewer system is in the works since 2019 and will hopefully see some forward momentum with state funding this spring and summer, before the next wet season. CCTVing is an ongoing process under the current SSES, and a few key areas had camera work done to them in November 2024.	55	There was no impact to residence, or private property, or human life as spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage posted, Vactor Truck on standby, and the property owners were made aware of the issue at this site location.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Returned Portion of Spill to Sanitary Sewer System		Spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage installed, property owners were notified and the Vac-Tor truck recovered twenty loads, 2000 gallons each, to the Wastewater Treatment plant for treatment. Once the SSO was over, and recovered, chlorine disinfectant was sprayed in the path of the SSO and surrounding area. During and after spill the area was monitored to keep clean if there were any sewage debris. After the spill event the ditch was cleaned and sprayed with chlorine solution for disinfection. 	Plan Rehabilitation or Replacement of Sewer		This site has a planned upsizing project in the planning phases for the past 6 years. Currently waiting on State funding to push the design process forward. Also looking to camera sewer mains and do a smoke test of the laterals in the area that lead to the Painter Street Pump Station.	Meeting with the State Water Control Board and Engineering company GHD on January 24th, 2024, provided some comfort that the State would approve the funding of this project, and the City of Rio Dell can start the design process. CCTV-ing of some of the sewer mains that lead to the pump stations up stream of this manhole were just completed in November, 2024. The data is being reviewed currently. 	02/04/2025 11:30	This SSO occurred due to the high levels of I&I. Several days of rain and saturation of the ground caused the pump station to become overwhelmed when large amount of rain occurred at once and caused the SSO at this location, the Painter Street manhole.	N			Eel River	River		The Eel River is a large river that runs north on the east side of the City of Rio Dell. There are no Surface Water users downstream of the SSO discharge location. 	No known impacts to aquatic life. The river rose 18.4 feet in 24 hours	Restricted Public Access		City of Rio Dell Wastewater Superintendent 	1	N	Y	A sample was taken upstream in the river of the spill location; RSW-001U: Latitude/Longitude (40.496013, -124.093796) A sample was taken where the spill stream enters the Eel River; RSW-001: Latitude/Longitude (40.503055, -124.091890) A sample was taken downstream in the river of the spill location; RSW-001D: Latitude/Longitude (40.508887, -124.111481)	Per the City of Rio Dell SSO Water Quality Monitoring Plan Samples were analyzed for E.coli and Ammonia.										
4	4SSO10496	Active	Trancas Zone of the CSMD CS	Los Angeles Cnty DPW	899455	1.2	Certified	Eric Liu	Civil Engineer	04-FEB-25	12-FEB-25	12-FEB-25	Category 1 Spill	Lechuza Pump Station (force main break)	01/30/2025 10:57	01/30/2025 11:20	01/28/2025 13:00	01/30/2025 13:45	25-0472		CSMD Map Sheet No. 1016 Lechuza Pump Station (broken force main)	34.03547	118.86211	Force Main			6500	Sewage from the force main break intermittently surfaced from the asphalt at various locations near the break, then flowed south and west along Sea Level Drive before reaching the beach sand through small private street drains on the south side of Sea Level Drive. 	Y	Sewage from the force main break intermittently surfaced from the asphalt at various locations near the break, then flowed south and west along Sea Level Drive before reaching the beach sand through small private street drains on the south side of Sea Level Drive. 	0	6500	Sewage from the force main break intermittently surfaced from the asphalt at various locations near the break, then flowed south and west along Sea Level Drive before reaching the beach sand through small private street drains on the south side of Sea Level Drive. 	6500	0	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		Sewage from the force main break intermittently surfaced from the asphalt at various locations near the break, then flowed south and west along Sea Level Drive before reaching the beach sand through small private street drains on the south side of Sea Level Drive. 	Y	34.03497	118.86246							01/30/2025 11:25	Calculated pump flow for estimated leak period.	Calculated pump flow for estimated leak period (1:00 PM 1/28/25 to 11:25 AM 1/30/25).	Other (specify below)	Force Main Break	Force Main		Ductile Iron		40	Sewage from the force main break intermittently surfaced from the asphalt at various locations near the break, then flowed south and west along Sea Level Drive before reaching the beach sand through small private street drains on the south side of Sea Level Drive. 	N	Cleaned Up (specify below); Other (specify below); Other Enforcement Agency Notified	Repaired force main break. 	We confirmed that the leak was coming from our station due to a break in the force main and shut down the pump station. We arrange to bypass the station by hauling sewage until the leak was repaired, cleaned up affected area, and notified all required agencies. 	Repaired Facilities or Replaced Defect		Repaired force main break. 	N/A	01/31/2025 16:30	Break in the force main. 	N			Malibu Beach	Ocean		Malibu Beach: From Encinal Canyon to 31250 Broad Beach Rd., in Malibu.	Unknown	Public Closure		Unknown	4	Y	Y	5 samples between Encinal Canyon to 31250 Broad Beach Rd., Malibu	Total Coliform, E. Coli, and Enterococcus										
2	2SSO10212	Active	Vallejo Sfcd CS	Vallejo Flood & Wastewater District (formerly Vallejo San & Flood Control District)	899463	1.2	Certified	Justin Keating	Director of Field Operations	04-FEB-25	11-FEB-25	11-FEB-25	Category 2 Spill	2700 Overlook Drive	01/29/2025 19:53	01/29/2025 20:28	01/29/2025 19:30	01/29/2025 21:37	25-0454		Spill came out of manhole on Bennington drive and Overlook drive	38.15896	-122.18337	Manhole			5650	Spill was captured in storm drain system.	Y	Spill entered storm system through storm drain inlet on overlook drive. This drain discharges into a neighborhood drainage ditch.	5650	0			5650	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Other (specify below); Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface	Drainage ditch	Intersection of Bennington and Overlook Drive.	Y	38.15896	-122.18337							01/29/2025 21:23	Duration and flow rate from discharging manhole.	Resident noticed discharging manhole at 19:30 while driving by. Reported immediately. We believe this to be an accurate start time estimate, as this is a heavier trafficked roadway in this subdivision. Spill location is also in line of sight of subdivision security guard station. Residents and security guards in this subdivision typically report problems immediately.	Root Intrusion		Manhole	Root intrusion occurred inside the manhole, grew down into the flow, causing blockage.	Polyvinyl Chloride (PVC)		26	Spill discharged into storm drain, drainage ditch.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	Took water quality samples downstream of spill site.	Washed down street, cleaned storm drain directly impacted. Continued drainage ditch and storm drain cleaning into 1/30. Took water quality samples downstream from spill location. Lab confirmed no sewage present in sample.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Inspected other manholes in vicinity for root growth. Added manholes to root foaming and visual inspection schedules.	Inspected other manholes in vicinity for root growth. Added manholes to root foaming and visual inspection schedules.	Inspection completed. Root foaming schedule created. Visual inspection schedule created.	01/30/2025 16:30	Spill was found to be caused by large root mass in manhole downstream from spill site. Root growth was aggressive as it was not observed in prior CCTV inspection on 1/4/2024. Roots were removed the night of the spill, addition nearby manholes were inspected. Root foam and visual inspection schedules were created.	N		01/30/2025 16:30										N													
2	2SSO10216	Active	West County WW District CS	West County Wastewater District	899467	1.2	Certified	Gordon Times	CSO Manager	05-FEB-25	19-FEB-25	19-FEB-25	Category 1 Spill	Intersection of Battery & Wilard St. Richmond CA, 94801	02/04/2025 17:35	02/04/2025 18:05	02/04/2025 15:10	02/04/2025 20:03	25-0598	21-MAR-25	The spill surfaced from a manhole in the intersection and two other manholes in the immolate area.	37.95126	-122.3707	Gravity Mainline; Manhole		Additional appearances were from 2 additional manholes in close proximately.	84840	The spill boundary consists of the intersection, the Northwest gutter, and a manhole just off the Southern sidewalk. Photo's we're uploaded.	Y	The storm drain entrance was about 25' South of the MH in the gutter.	0	84840	Discharge into surface waters are unknown at the time.	84840	0	Drainage Conveyance System that discharges to surface water		The spill entered the storm drain about 25' South of the MH in the gutter. The storm drain system travels North on Battery St. about 1000', and connects to the system on West Gertrude St, and then travels approximately 750' until the flow enters the N. Richmond Storm Water Pumping Station which pumps deep into the marsh that is inaccessible for sampling. The marsh flows eventually enter San Pablo Bay (See Attachment).	Y	37.95119	-122.37074	37.95388	-122.37398					02/04/2025 20:03	We used the photo comparison of all three manholes and estimated a combined 280gpm. We estimated the spill ran for approximately 303 minutes to equal 84,840 gallons.	We have an ADS water level monitor on a manhole just downstream of the MH that overflowed which alarms us when the flow levels are high and when the MH overflows. We received an overflow alarm at 1711. However, the resident at 1239 Willard noticed it started the MH that overflowed started a little after 1500. (See attached graph).	Pump Station Failure - Mechanical		Other (specify below)	Pump Failure at treatment plant about a mile downstream.	Other (specify below)	Pump Failure	0	The impact was minimized as the spill occurred during a heavy rain event in a residential neighborhood in a not so busy intersection. The flows mixed with a large amount of storm water and entered the storm drain about 25' away. The sewer and storm water combined to puddle in the gutter before it flowed into the storm system. Very few solids left the system.	Y	Cleaned Up (specify below); Restored Flow	The few solids that appeared were swept up by crew members. The area was washed down with water the following day.	Because of the location and the fact that this occurred during a major storm event, trying to contain the spill and prevent it from entering the storm drain would likely have increased the amount of flooding in the neighborhood. The few solids that appeared were swept up by crew members. The area was washed down with water the following day.	Repaired Facilities or Replaced Defect		The treatment plant is about a mile downstream of the spill which experienced a mechanical failure in the wet well which prevented them from pumping at full power allowing the flow to back-up in the collection system.	The pump that failed was repaired the same night.	02/05/2025 16:00	See 10.b	N			San Pablo Bay	Ocean; Slough		The Wildcat Marsh is located somewhere on Chevron property and is inaccessible. The San Pablo Bay is West of the N. Richmond Storm Water Pumping Station.	Non	Other (specify below)	Non	NA	0	N	Y	Willard and Battery Spill Sampling:  DCS-001 = storm drain catch basin in front of 1239 Battery St. where the spill entered the storm drain system Date: 2/5/25 Time: 12:58  RSW-001 = wet well inside the N. Richmond stormwater pump station (outfall is inaccessible deep in wildcat marsh)  Date: 2/5/25 Time: 13:30 Observations: The station was very dirty inside but there were no visible signs of sewage.  Sampling results: 	DCS-001 = storm drain catch basin in front of 1239 Battery St. where the spill entered the storm drain system:  �Total Coliform: 160,000 MPN/100ml (preliminary) �Fecal Coliform: 35,000 MPN/100ml (preliminary) �E. Coli: >2419.6 MPN/100ml (preliminary)  �Enterococcus: 24196 MPN/100ml (final)   RSW-001 = wet well inside the N. Richmond stormwater pump station (outfall is inaccessible deep in wildcat marsh)  										
2	2SSO10216	Active	West County WW District CS	West County Wastewater District	899468	1.2	Certified	Gordon Times	CSO Manager	05-FEB-25	19-FEB-25	19-FEB-25	Category 1 Spill	3550 San Pablo Dam Rd	02/04/2025 09:55	02/04/2025 09:55	02/04/2025 09:00				MH overflow, One Appearance point, From Pick hole	37.9629	-122.31986	Gravity Mainline; Manhole	MH Pick hole	MH Pick Hole	400	See Photos (See Pictures Attached)	Y	Storm Drain (See Pictures Attached)	0	400	(See Pictures Attached)	400	0	Drainage Conveyance System that discharges to surface water		The spill entered the storm drain approximately 50 ft. from the manhole. The storm drain entered San Pablo Creek approximately 500 ft. Northwest. (See Attachment)	Y	37.96382	-122.31994	37.96561	-122.32053					02/04/2025 10:20	The spill was calculated using the Flow Rate of 5GPM times the estimated duration of the spill of 80 minutes. 	We assumed that the spill had recently started due to the lack of solids around the manhole. The end time was recorded when crew members broke the stoppage.	Debris-Rags		Gravity Mainline		Vitrified Clay		70	The only negative impact the spill had was on traffic. San Pablo Dam Rd. is a very busy street, and the team had to shut down lanes to clear the blockage. The sewage entered a storm drain which was inundated with recent rainwater, so the sewage was extremely diluted when it entered the creek.	Y	Cleaned Up (specify below); Restored Flow		The team blocked the storm drain with rubber covers and sandbags and proceeded to set up proper traffic control. They then proceeded to break the stoppage. After the flow was restored, the team washed down the affected area and vacuumed the residual water.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		The sewer line was CCTV inspected and there were no structural issues found. The resolve was to increase the frequency of line maintenance. We also reported the spill to our Environmental Compliance Dept. which will be contacting neighboring businesses to bring awareness of the rag issue.	CCTV Sewer Line--2-5-25 Increase Maintenance--2-5-25 Neighborhood Awareness--In process	02/05/2025 08:58	See 10.b	N			San Pablo Creek	Stream/Creek		San Pablo Creek is one of two major creeks running through El Sobrante, San Pablo and parts of Richmond.	Non observed	Other (specify below)	Non	NA	0	N	N												
2	2SSO10216	Active	West County WW District CS	West County Wastewater District	899469	1.2	Certified	Gordon Times	CSO Manager	05-FEB-25	18-FEB-25	18-FEB-25	Category 1 Spill	425 Rincon Rd.	02/03/2025 15:04	02/03/2025 15:12	02/01/2025 12:00	02/03/2025 04:07	25-0549		The spill came out of a manhole on a paved rd. 	37.97665	-122.2978	Gravity Mainline; Manhole			26193	The spill came out of a single manhole and went into a storm drain approximately 40 ft. away from the manhole.	Y	The drainage conveyance system was a storm drain.	500	25693	The spill went into the storm drain which discharges to a creek.	37300	500	Drainage Conveyance System that discharges to surface water		The spill came out of a single manhole and went into a storm drain approximately 40 ft. away from the manhole.	Y	37.97651	-122.29809	37.97651	-122.29809					02/03/2025 15:32	We counted 102 upstream connections by an average water usage of 120 gallons per day. We calculated the spill the spill ran 2.14 days for a total of 26,193 gallons. The original estimated amount of 37,800 gallons was off as we mistakenly added an additional day. We recovered approximately 500 gallons which we estimated by the amount of water we collected in the vactor debris tank.	 We interviewed Mr. Ryan Travalina who is a nearby resident who estimated the spill started around noon on February 1. He didn't call us that day because he thought the spill was related to the storm drain system.	Debris-Rags		Gravity Mainline		Vitrified Clay		80	The sewage was heavily diluted as this occurred during a rain event. The only impact was on the neighborhood was the traffic. there was no noticeable impact on the environment.	Y	Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Our crew arrived to the site, took some pictures and video. They covered the storm drain and placed sand bags around it. Some crew members began attempting to break the stoppage while others positioned, set up our Vactor and began recovering the spill. Once the spill was broken, we washed the paved road and recovered the water along with any remaining sewage. We sprayed enzymes on the spill area and called Cal OES.	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		The crew members noticed that a large number of red rags from upstream had collected in the downstream invert. Inspection of the invert revealed that imperfections had allowed the rags to collect and eventually plug the line. An invert repair workorder was developed and given to the Construction Supervisor.	CCTV of line--February 10, 2025 Invert Repair Completed--February 11, 2025	02/11/2025 09:22	See 10.b	N			San Pablo Creek	Stream/Creek		The San Pablo Creek is approximately 3/4 of a mile away from where the spill entered the storm drain. The creek was flowing heavy as this occurred during a rain event.	There was no impact caused by spill.	Other (specify below)	Non	NA	0	N	N												
4	4SSO10394	Active	Industry City CS	City of Industry	899471	1.5	Certified	May Hong	Civil Engineer	06-FEB-25	06-FEB-25	06-FEB-25	Category 1 Spill	2305-0656 (1100 Coiner Court, Industry, CA)	01/23/2025 14:55	01/23/2025 15:29	01/23/2025 14:49				CSMD Map Sheet No. 2305 MMS No. 9205055 Upon arrival, signs of overflow were observed at Manhole No. 656.	33.99651	117.89516	Manhole			10	Upon arrival, signs of overflow were observed at Manhole No. 656. Approximately 10 gallons escaped the system, and approximately 2 gallons entered a private storm drain. 	Y	Approximately 10 gallons escaped the system, and approximately 2 gallons entered a private storm drain at 1100 Coiner Court, Industry. 	0	2	Sewage discharged from Manhole No. 656 into the private storm drain at 1100 Coiner Court, Industry, CA, which leads to San Jose Creek-Thompson Creek to U/S San Gabriel River. 	2	0	Drainage Conveyance System; Street/Curb and Gutter (2 3)		Sewage discharged from Manhole No. 656 into the private storm drain at 1100 Coiner Court, Industry, CA, which leads to San Jose Creek-Thompson Creek to U/S San Gabriel River. 	Y	33.99656	117.89459							01/23/2025 15:00	CWEA SSCSC Manhole Gauge Visual or Eyeball Method	The start time is obtained from the reporting party, and the end time is determined when the crew clears the obstruction and the overflow stops. 	Damage by Others Not Related to Collection System Construction/Maintenance; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		37	No impact.	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow		Upon arrival, signs of overflow were observed at Manhole No. 656. Hydro jet equipment was used to break down a heavy grease blockage. The affected area was cleaned, and the required agencies were notified. 	Other (specify below)	There is an ongoing issue with Santa Fe Railroad and the Division is aware of breached mainline. Mainline will be repaired by San Gabriel Valley Counsil of Governments at 1333 Mayflower Ave #360, Monrovia, CA 91016. 	There is an ongoing issue with Santa Fe Railroad and the Division is aware of breached mainline. Mainline will be repaired by San Gabriel Valley Counsil of Governments at 1333 Mayflower Ave #360, Monrovia, CA 91016. 	N/A	01/23/2025 20:00	Breached mainline and heavy grease accumulation.	Y	A grease accumulation report will be submitted to the Environmental Programs Division for further investigation.	04/30/2025 10:51	San Jose Creek-Thompson Creek to U/S San Gabriel River	River; Stream/Creek		Sewage discharged from Manhole No. 656 into the private storm drain at 1100 Coiner Court, Industry, CA, which leads to San Jose Creek-Thompson Creek to U/S San Gabriel River. 	No impacts.	Other (specify below)	No impact.	N/A	0	N	N											A grease accumulation report will be submitted to the Environmental Programs Division for further investigation.	
2	2SSO10184	Active	San Rafael SD CS	San Rafael Sanitation District	899472	1.4	Certified	Philip Buckley	Principal Civil Engineer	05-FEB-25	14-FEB-25	14-FEB-25	Category 1 Spill	115 Main Dr	02/01/2025 09:03	02/01/2025 09:45	01/31/2025 13:00	02/01/2025 19:15	25-0513		Spill came out of broken sewer pipe underground and bubbled up through a storm catch basin and around the storm drain pipe and entered a drainage ditch.  	37.982084	-122.47997	Gravity Mainline; Other (specify below)	drainage ditch	The storm drainage pipe and catch basin were poorly constructed.  The catch basin has holes in it and the pipe was not backfilled properly.  The spill that exited our pipe entered a catch basin underground.  The fill around the storm drain pipe was gone and water from the catch basin was flowing around the exterior of the pipe out to the drainage ditch.  	2240	The drainage ditch flows to a storm water pump station.  This pump station only operates during heavy rain and it hadn't run in some time.  We contacted the City of San Rafael and had them shut off the pump station so we could contain the spill and pump it back into our system	Y	the drainage ditch is roughly 80' long from the outlet of the 12  storm drain pipe to the drainage inlet for the 54  pipe that enters the pump station.  That 54  pipe is roughly 775' long.  	500	1740	We did not see any evidence of sewage once the storm water pump station was back online.  Upon arrival we set up our Vactor over the broken pipe to suck up the spill before it entered the storm drainage.  This truck was removing water until we were able to remove the blockage downstream.  Our crews then proceeded to repair the broken pipe.	1740	500	Drainage Conveyance System that discharges to surface water; Other (specify below)	Spill entered storm drainage channel to 54  storm pipe and storm water pump station.  We had City of San Rafael turn off the pump station so we could contain the spill.  We attempted to pump the pump station back into our system but the first pump we brought out was too large and overwhelmed the gravity system.  The second bypass pump had mechanical issues and did not work.  We finally ran out of time and the wet well capacity could not hold anymore water given the ongoing rainfall and we were forced to turn the storm water pump station back online.   The pump station pumped the well down in less than a minute releasing the spill into Glenwood Creek.  	GPS coordinates are where the pump station discharge enters Glenwood Creek.	Y	37.982672	-122.476864							02/01/2025 13:00	City personnel had been working in that area checking drainages earlier in the week (thursday and friday) and they did not notice any sewer discharge in the drainage channel.  We are not sure when the pipe broke so since the City was out there the day before and did not see any evidence.  We are saying this could possibly have been going for 24 hours.  We are estimating that the spill started at 1:00 pm on January 31, 2025. The pipe was fixed at 1:00 pm on February 1st, 2025. The uncaptured spill volume of 1740 gallons was contained in the 35,000 gallon stormwater pump station wet well until 7:03 pm when the pumpstation was put back online. The spill was significantly diluted by the large volume of stormwater and there was no visible evidence of the spill in the creek.    	We based the volume estimation on 16 upstream laterals going for 24 hours.  	Damage by Others Not Related to Collection System Construction/Maintenance	The City of San Rafael hired a contractor to install a new catch basin on the side of the road and replaced a section of corrugated metal pipe that passed under our pipe.  This contractor did a poor job.  The catch basin leaks and the pipe going from the drainage ditch to the catch basin was poorly bedded.  Water will exfiltrate from the catch basin and follow the pipe exterior to the drainage ditch.    	Gravity Mainline		Concrete; Other (specify below)	ACP Asbestos Concrete Pipe	51	No visual impacts witnessed	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	We notified the County of Marin Environmental Health Services	It was raining when the storm water pump station went back online.  There was flow coming from upstream above where the pump station enters the creek.  All spill water was flushed out to the bay.  	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer; Post Spill CCTV; Repaired Facilities or Replaced Defect	We repaired the cracked pipe 02/01/2025	Once cracked pipe was identified and located, our crews set up our Vactor at the manhole upstream and removing water so it did not continue to the cracked pipe.  Crews proceed to repair the cracked section to prevent further spillage.  	Currently coordinating with a contractor to get this pipe segment from upstream manhole to downstream manhole replaced	02/01/2025 19:15	The pipes on this street are on our preventative maintenance cleaning list.  The last time it was cleaned was 01/08/2025 and the technicians did not notice collect anything out of the ordinary.  See attached screenshot from CMMS Activity Maintenance Record.  The new catch basin is 8 inches away from our gravity pipe and their new C900 pipe is 1.5' below our pipe.  	N			Glenwood Creek	Stream/Creek		It's a creek that flows out to San Pablo Bay	No observed impacts	Other (specify below)	No public accesss	Marin County Environmental Health Services	0	N	N												
2	2SSO10196	Active	Sonoma Valley County S.D. CS	Sonoma County Water Agency (SCWA)	899476	1.3	Certified	Daniel Colvin	WA Coordinator	05-FEB-25	18-FEB-25	18-FEB-25	Category 1 Spill	15561 BROOKVIEW DR	02/04/2025 15:55	02/04/2025 17:00	02/04/2025 15:55	02/04/2025 17:45	25-0592		SEE ATTACHED	38.33844	-122.50764	Lateral Clean Out (Private)			4760	PARTIALLY CONTAINED IN COURT AND IN DI.  SEE ATTACHED	Y	DI IN COURT	500	4260	SEE ATTACHED	4260	500	Street/Curb and Gutter (2 3)		DI IN CURB AND GUTTER	Y	38.33835	-122.5076							02/04/2025 18:14	USED DKF CHART FOR HEIGHT ABOVE OPEN CLEANOUT WITH NO LID	START TIME BASED ON CALLER INFORMATION.  SPILL STOP TIME DETERMINED BY ON SITE CREW	Flow Exceeded Capacity (Separate Collection System Only)		Lower Lateral		Other (specify below)	AC PIPE	62	NO IMPACTS OBSERVED	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Returned Portion of Spill to Sanitary Sewer System	500 GALLONS CAPTURED AND ALL PHYSICAL EVIDENCE OF SPILL WAS REMOVED	SIGNAGE POSTED. 500 GALLONS CAPTURED AND ALL PHYSICAL EVIDENCE OF SPILL WAS REMOVED	Plan Rehabilitation or Replacement of Sewer		The spill corrective action includes ongoing efforts to manage and mitigate impacts while implementing a long-term solution through our Capital Improvement Project. This project involves replacing the existing sewer trunk main to prevent future occurrences. Temporary measures include enhanced monitoring, routine maintenance, and contingency response plans. The project is scheduled for completion by October 31, 2029, with major milestones including design finalization, phased construction, and system upgrades.	October 31st 2029	02/04/2025 12:12	known issue	N			SONOMA CREEK	Stream/Creek		Flooded CREEK	NONE	Other (specify below)	NONE	CDPH	0	N	N												
2	2SSO10196	Active	Sonoma Valley County S.D. CS	Sonoma County Water Agency (SCWA)	899478	1.3	Certified	Daniel Colvin	WA Coordinator	06-FEB-25	18-FEB-25	18-FEB-25	Category 1 Spill	SVCSD_M60-13 VAILETTI DR	02/04/2025 14:43	02/04/2025 16:46	02/04/2025 14:43	02/04/2025 17:20	25-0587		SEE ATTACHED	38.32225	-122.48872	Manhole			27353	SEE ATTACHED	Y	DI	0	0	Curb and gutter to DI	27535	0	Street/Curb and Gutter (2 3)		CURB AND GUTTER TO DI	Y	38.32216	-122.48883							02/04/2025 20:08	USING THE DKF CHART FOR FLOW OUT OF 24 MANHOLE WITH COVER IN PLACE	START TIME DETERMINED FROM CALLER. END TIME DETERMINED VISUALLY BY CREW ON SITE	Flow Exceeded Capacity (Separate Collection System Only)		Manhole		Vitrified Clay		66	NONE	Y	Cleaned Up (specify below)	VISIBLE DEBRIS CLEANED AND ROAD SURFACE WASHED	VISIBLE DEBRIS CLEANED AND ROAD SURFACE WASHED	Plan Rehabilitation or Replacement of Sewer		The spill corrective action includes ongoing efforts to manage and mitigate impacts while implementing a long-term solution through our Capital Improvement Project. This project involves replacing the existing sewer trunk main to prevent future occurrences. Temporary measures include enhanced monitoring, routine maintenance, and contingency response plans. The project is scheduled for completion by October 31, 2029, with major milestones including design finalization, phased construction, and system upgrades.	October 31st 2029	02/05/2025 10:35	Known issue.	N			SONOMA CREEK	Stream/Creek		Flooded CREEK	NONE	Other (specify below)	NONE	CDPH	0	N	N												
5S	5SSO10869	Active	Auburn Lk Trls Onsite WW Disp CS	Georgetown Divide PUD	899479	1.1	Certified	Alexis Elliott	Water Resources Manager		05-FEB-25	05-FEB-25	Category 1 Spill	1593 American River Trail	02/04/2025 11:27	02/04/2025 11:30	02/05/2025 10:30	02/04/2025 13:28	25-0575	05-FEB-25	Heavy rains and i&i cause over flow of effluent at lift station. 	38.534198	121.00023	Pump Station	Came out the lids of the pump tank and the overflow camber		2040	station 16	Y	seasonal creek behind the lift station	1020	0	Runs out of the lift station building onto the gravel road and surrounding dirt areas. We have waddles in place to capture some of the spill	1020	1020	Drainage Conveyance System that discharges to surface water	seasonal creek behind the lift station. With heavy rains not sure how much goes into the creek. Or into the soil. 	Small seasonal creek 	Y	38.89244	-120.997194							02/04/2025 20:00	visual inspection. Estimated by field staff and myself. 	Notification system, and I personally was on scene.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Other (specify below)	Pumps cant keep up with heavy rains, and not enough overflow storage.	Other (specify below)	Its concrete holding tanks/pump tanks. 	10	Very minimal. It is hard to tell how much got to the drainage with all the water yesterday. 	Y	Cleaned Up (specify below); Contained All or Portion of Spill	Whe disinfect the spill and try to contain before it goes into the drainage	waddles/barriers, and chlorine pucks.	Other (specify below)	In the process of getting a grant to upgrade lift station. 	Engineers have done the work. Waiting to get the money for project approval. 	Already done engineering plans.	02/04/2025 20:40	Field staff arrived and checked the spill throughout the day. Continued to disinfect with chlorine. Collected samples-took to the lab. Checked once rain stopped. Spill had ended.	Y	We spill during heavy rain events. 	03/19/2025 11:47	No name on the seasonal drainage	Stream/Creek		Seasonal drainage	none	Other (specify below)	none	none	0	N	Y	100ft above and 100 feet below station 16	total coliform, fecal coliform, and ammonia									We spill during heavy rain events. 	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	899481	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		07-FEB-25	07-FEB-25	Category 2 Spill	505 North Bienveneda Avenue	02/04/2025 12:51	02/04/2025 14:00	02/04/2025 12:51	02/04/2025 18:57	25-0600		Crew arrived at 2:00 PM and discovered the 8 inch mainline sewer serving the referenced area was broken and spilling.	34.04436	-118.541074	Gravity Mainline			75280	see attached	Y	The sewage was captured by a County of Los Angeles low flow diversion structure that prevented discharge into the Pacific Ocean. See attached	75280	0			75280	Other (specify below)	The sewage was captured by a County of Los Angeles low flow diversion structure that prevented discharge into the Pacific Ocean. 	34.044360  118.541074	Y	34.04436	118.541074							02/05/2025 02:29	SPILL FLOWRATE AND VOLUME DETERMINATION BASED ON FLOWOUT PICKHOLE OR OPENING  DIAMETER OF PICKHOLE OR OPENING 6 INCHES HEIGHT OF WATER OUT OF PICKHOLE/OPENING 0.5 INCHES FLOWRATE PER PICKOLE/OPENING (GPM) 92 GPM # OF PICKHOLES/OPENINGS 1 TOTAL FLOWRATE (GPM) 92 GPM DURATION OF SPILL (MINUTES) 818 MINUTES TOTAL FLOW (GALLONS) 75,280 GALLONS	SPILL FLOWRATE AND VOLUME DETERMINATION BASED ON FLOWOUT PICKHOLE OR OPENING  DIAMETER OF PICKHOLE OR OPENING 6 INCHES HEIGHT OF WATER OUT OF PICKHOLE/OPENING 0.5 INCHES FLOWRATE PER PICKOLE/OPENING (GPM) 92 GPM # OF PICKHOLES/OPENINGS 1 TOTAL FLOWRATE (GPM) 92 GPM DURATION OF SPILL (MINUTES) 818 MINUTES TOTAL FLOW (GALLONS) 75,280 GALLONS	Pipe Structural Problem/Failure - Controls		Gravity Mainline		Other (specify below)	HDPE	18	It was estimated that approximately 75,280 gallons of sewage flowed from the sewer as a result of the blockage. The sewage was captured by a County of Los Angeles low flow diversion structure that prevented discharge into the Pacific Ocean. This incident is classified as a Category II Sanitary Sewer Overflow by the State Water Resources Control Board.	N	Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow	A CWCD crew took immediate action at the incident location and determined that the 8-inch main line sewer serving the referenced area was overflowing due to a damaged pipeline. On Tuesday, February 6, 2024, City contractor bypassed the sewer system and the backup ceased on February 5, 2025 at 2:29 AM. The Contractor will make all necessary repairs. All the necessary clean-up was performed. 	A CWCD crew took immediate action at the incident location and determined that the 8-inch main line sewer serving the referenced area was overflowing due to a damaged pipeline. On Tuesday, February 6, 2024, City contractor bypassed the sewer system and the backup ceased on February 5, 2025 at 2:29 AM. The Contractor will make all necessary repairs. All the necessary clean-up was performed. 	Plan Rehabilitation or Replacement of Sewer		City contractor bypassed the sewer system and the backup ceased on February 5, 2025 at 2:29 AM. The Contractor will make all necessary repairs. All the necessary clean-up was performed. 	City contractor bypassed the sewer system and the backup ceased on February 5, 2025 at 2:29 AM. The Contractor will make all necessary repairs. All the necessary clean-up was performed. 	02/05/2025 02:29	On Tuesday, February 4, 2025, at 12:51 PM, the Clean Water Conveyance Division (CWCD) crew was performing inspection and found sewage overflowing from a sewer pipe near 505 North Bienveneda Avenue (TG 630-H5). A CWCD crew took immediate action at the incident location and determined that the 8-inch main line sewer serving the referenced area was overflowing due to a damaged pipeline.	N	No.	02/05/2025 02:29										N												No.	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	899482	1.3	Certified	Ameal McLaurin	Sewer Supervisor 2	05-FEB-25	12-FEB-25	12-FEB-25	Category 1 Spill	1552 Holman Road, Oakland Ca	02/04/2025 11:06	02/04/2025 11:15	02/04/2025 10:20				Sewer lateral clean-out (private) overflowing near the public sidewalk.	37.80834	-122.2247	Lateral Clean Out (Private)			750	Sewer lateral clean-out (private) overflowing near the public sidewalk. The sewage was flowing to the sidewalk, curb and gutter, and to the nearest storm inlet.	Y	12  storm line called Wildwood & Trestle Glen creeks.	0	750	12  storm line called Wildwood & Trestle Glen creeks.	750	0	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Sewer lateral clean-out (private) overflowing near the public sidewalk. Sewage spilled onto street curb and gutter into a storm inlet. The storm inlet leads to Wildwood & Trestle Glen Creek.	Y	37.80827	-122.2247							02/04/2025 11:45	75 minutes x 10 GPM = 750 gallons spilled.	Start time was based on eyewitness account. End time when based on when responding crew cleared the blockage.	Debris-wipes/Non-disposables		Gravity Mainline		Vitrified Clay		125	Seven hundred and fifty gallons overflowed from a sewer lateral cleanout private as a result of the mainline being obstructed with baby wipes. Sewage spilled into a storm inlet that flows to Wildwood, and Trestle Glen Creek.	Y	Cleaned Up (specify below); Property Owner Notified; Restored Flow	Staff cleaned affected area in front of the property, the street curb and gutter area.	Staff cleaned affected area in front of the property, the street curb and gutter area.	Added Sewer to Preventive Maintenance Program; Post Spill CCTV		Sewer main was added to the three-month hydro high frequency program. W.O. 1579127.	Sewer main was added to the three-month hydro high frequency program. W.O. 1579127.	02/07/2025 13:17	CCTV found wipes to have been the cause of the spill.	N			Wildwood and Trestle Glen Creek	Stream/Creek		Creek.	None.	Other (specify below)	None.	N/A	0	N	N												
2	2SSO10196	Active	Sonoma Valley County S.D. CS	Sonoma County Water Agency (SCWA)	899486	1.2	Certified	Daniel Colvin	WA Coordinator	06-FEB-25	18-FEB-25	18-FEB-25	Category 1 Spill	445 MOLL CT	02/04/2025 10:50	02/04/2025 11:00	02/04/2025 10:30				ORIGINATED FROM PRIVATE LOWER LATERAL THROUGH PRIVATE CLEAN OUT	38.29233	-122.45168	Lateral Clean Out (Private)			128	SPILL OUT OF CLEANOUT THROUGH HOLE IN LID TO CURB	Y	CURB AND GUTTER	0	128	CURB AND GUTTER	128	0	Street/Curb and Gutter (2 3)		CURB AND GUTTER	Y	38.29229	-122.45169							02/04/2025 11:15	DURATION AND FLOW	Given a 1-inch diameter hole and an estimated head height (h) of 1/4 inch (0.021 ft), we can use Torricelli�s theorem to estimate the velocity and flow rate. and came up with 2.84GPM	Debris-Rags		Gravity Mainline		Vitrified Clay		58	NONE	Y	Cleaned Up (specify below); Restored Flow	CLEANED STREET AND DEBRIS	VAC TRUCK TO CLEAN UP DEBRIS	Enforcement action against Fats, Oil, and Grease (FOG) source		Targeted outreach in the area	2/13/25	02/13/2025 10:24	Crew ran the mainline and cleared a blockage of rags and grease	N			Nathanson Creek	Stream/Creek		Flooded creek.	none	Other (specify below)	none	CDPH	0	N	N												
2	2SSO10162	Active	Novato And Ignacio CS	Novato Sanitary District	899490	1.2	Certified	Jeff Andress	Collection Systems Superintendent	05-FEB-25	24-FEB-25	24-FEB-25	Category 1 Spill	854 Wilson Ave. Novato, CA	02/04/2025 15:10	02/04/2025 15:10	02/04/2025 15:10	02/04/2025 16:55	25-0586		@ 854 Wilson Ave, three manholes experienced an SSS	38.1099	-122.59205	Manhole		three manholes within close proximity of each other were all discharging at the same time. One(E15000) with a flow of 1  out of a pick hole estimated 2.7gpm. A second manhole(E15007) had a flow 3  from pick hole estimated at 4.7gpm, and a third manhole (E15136) using the SSCSC Overflow gauge sample pictures it was estimated at 125gpm. a total of 135gpm was estimated for the three appearance points. the spill occurred for 20 minutes. for a total estimated calculation of 2,700 gallons.  	2700	came out of three manholes and ran down curb and gutter 15' to a storm drain. Then flows directly into Vineyard creek directly behind the houses approximately 300' away.	Y	went down curb and gutter 15' right into a storm drain. 	0	0	coming out of the storm drain pipe and into Vineyard Creek durring a heavy storm event. flows were too high to see pipes.	2700	0	Drainage Conveyance System that discharges to surface water		came out of three manholes and flowed to the curb and gutter and into a stormdrain. 	Y	38.10999	-122.59208							02/04/2025 15:20	three manholes within close proximity of each other were all discharging at the same time. One(E15000) with a flow of 1  out of a pick hole estimated 2.7gpm. A second manhole(E15007) had a flow 3  from pick hole estimated at 4.7gpm, and a third manhole (E15136) using the SSCSC Overflow gauge sample pictures it was estimated at 125gpm. a total of 135gpm was estimated for the three appearance points. the spill occurred for 20 minutes. for a total estimated calculation of 2,700 gallons.  	three manholes within close proximity of each other were all discharging at the same time. One(E15000) with a flow of 1  out of a pick hole estimated 2.7gpm. A second manhole(E15007) had a flow 3  from pick hole estimated at 4.7gpm, and a third manhole (E15136) using the SSCSC Overflow gauge sample pictures it was estimated at 125gpm. a total of 135gpm was estimated for the three appearance points. the spill occurred for 20 minutes. for a total estimated calculation of 2,700 gallons.  	Flow Exceeded Capacity (Separate Collection System Only)		Manhole		Concrete		53	no visual impacts as this occurred during a heavy rainstorm. 	Y	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified		set up of a bypass pump to help divert flow in order to relieve the surcharging in the system. 	Plan Rehabilitation or Replacement of Sewer		Set alerts of surcharging using Smartcover systems. mandatory set up of bypass pump with known wet weather events. Downstream sections of pipeline in design for replacement and upsizing. 	this capital improvement project should begin within the next 3 years. 	02/04/2025 15:20	Spill cause determined to be capacity issues due to storm event. Heavy rain downpour overwhelmed the system causing the surcharging to relieve itself at the 3 manholes in front of 854 Wilson Ave. 	N			Vinyeard creek. 	Stream/Creek		this creek runs down a channel and flows into Novato Creek. 	none observed as the creek was swollen due to the heavy rains. 	Restricted Public Access		Marin County Environmental Health Department. 	0	N	N												
2	2SSO10165	Active	Petaluma City CS	Petaluma City PWD	899492	1.2	Certified	Daniel Herrera	Deputy Director of Operations	06-FEB-25	20-FEB-25	20-FEB-25	Category 1 Spill	Intersection of Jefferson St. & Payran St.	02/04/2025 15:07	02/04/2025 15:07	02/04/2025 15:07	02/04/2025 15:57	25-0583		Storm event and sewer pump station caused overloading of collection system piping.	38.23966	122.62838	Manhole	SSMH-1506	There were no other manholes affected in the area during this event.	23950	Due to the amount of rain water on the surface streets, the containment and cleanup minimal. (see Attached photos)	Y	Spill reached gutter pan carrying storm to storm collection intake. 	0	23950	There was only the identified manhole affected. (see Attached)	23950	0	Drainage Conveyance System that discharges to surface water		Spill originated at intersection of Jackson and Payran Streets. It entered into the storm conveyance system to Wilson Pump Station and ultimately the Petaluma River.  	Y	38.23459	-122.62821							02/04/2025 17:00	The spill volume was estimated using calibrated manhole flow references within the SERP. 	At the site, take a record (picture/video) of spill occurring and visually compare against the calibrated manhole flow estimations in the SERT.  Once flow is estimated, use spill start and stop times for volume. 	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Cast Iron; Vitrified Clay		67	Not much impact. The flow was from our faigrounds property with very minimal usage. The far majority of the flow was stormwater infiltration. 	Y	Other (specify below); Restored Flow	We monitored flow, but due to storm event, impossible to capture.  We coordinated with pump station operators to reduce flow volume to reduce spill volume.  Spill stopped before rain event stopped. 	Staff responded to site but no obstruction or debris required to be removed. pump station output was too much for pipeline. Coordination with pump station staff to reduce volume occurred. 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Plan Rehabilitation or Replacement of Sewer	Coordination with pump station staff for operations levels/points during storm events.  	The pipeline downstream of the spill is set for replacment and capacity increase. Also, staff coordinated with pump station operators to adjust set points during rainfall events. 	Pipeline to be replaced within 3 months. 	02/04/2025 18:20	It was determined that new pumps installed in fairground sewer pump station exceed capacity during high rate rainfall events.  Efforts to reduce stormwater reaching fairgrounds collection system were minimal.  	N			Petaluma River	Slough		an inlet on the Petaluma River.	None	Other (specify below); Restricted Public Access	Petaluma River is not generally used during rain events. 	City of Petaluma	0	N	N												
2	2SSO10165	Active	Petaluma City CS	Petaluma City PWD	899515	1.2	Certified	Daniel Herrera	Deputy Director of Operations	06-FEB-25	20-FEB-25	20-FEB-25	Category 1 Spill	Petaluma Blvd. South	02/04/2025 16:11	02/04/2025 16:11	02/04/2025 16:11	02/04/2025 16:32	25-0584		There was only the identified appearance point manhole that was affected during this SSO which due to heavy rainfall from storm event.	38.22879	122.62718	Manhole	None at this time	No identified at this time	1650	Minor spill event during I&I from rainfall and surface water.	Y	Adjacent are is curb and gutter surface drainage for rainfall collect.	0	1650	None available (See attached)	1650	0	Drainage Conveyance System that discharges to surface water		Spill orignated near intersection of Mountain View Ave and Petaluma Blvd South. It reached a storm drain catch basin and ultimately the Petaluma River. 	Y	38.22863	-122.62679							02/04/2025 16:35	Using calibrated referenced manhole flow estimates and spill time	At the site, take a record (picture/video) of spill occurring and visually compare against the calibrated manhole flow estimations in the SERT.  Once flow is estimated, use spill start and stop times for volume. 	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Polyvinyl Chloride (PVC)		7	Little impact, flow diluted with storm rain and reached river . 	Y	Cleaned Up (specify below); Restored Flow		Spill occurred during rainfall event.  Staff were onsite as it happened due to known SSO location.  Staff blocked off public access to area. 	Adjusted Schedule/Method of Preventive Maintenance; Post Spill CCTV		Staff inspected pipeline in case of obstruction Discussed with pump station operators on possible adjustments to set points. 	Increase smoke testing in sewer shed to reduce I&I. Have priority pipeline replacements within a year to replace aging pipes contributing I&I. 	02/04/2025 17:00	The spill is caused by inability of the C Street pump station to keep up with flows in system and it backs up. The spill location is a low point in the sewer collection system. 	N			Petaluma River	Slough		Petaluma River	none	Restricted Public Access		City of Petaluma	0	N	N												
2	2SSO10170	Active	Richmond City CS	Richmond City	899521	1.2	Certified	Mary Phelps	Water Resource Division Manager	06-FEB-25	18-FEB-25	18-FEB-25	Category 1 Spill	4701 Hartnett	02/04/2025 10:15	02/04/2025 10:15	02/04/2025 10:15	02/04/2025 10:31	25-0569		SSO discharge from manhole to street curb and gutter. Did enter storm drain collection system. 	37.91686	-122.32698	Manhole			21250	Spilled onto paved street curb and gutter 	Y	Stormwater drains	0	0	Manhole ID E13MH2045	21250	0	Drainage Conveyance System that discharges to surface water; Surface Water		Hydraulic overload due to sever rain event. See attached. 	Y	37.91686	-122.32698	37.91379	-122.32423					02/04/2025 19:30	SCADA data from wastewater treatment plant. Onsite visual observations based on operator training. 	Onsite flow monitoring based on visual observations and operator training. 	Flow Exceeded Capacity (Separate Collection System Only); Rainfall Exceeded Design, I and I (Separate Collection System Only)		Gravity Mainline; Manhole		Vitrified Clay		50	See attached	Y	Mitigated Effects of Spill (specify below)		Posted signage at spill site to restrict traffic and access. 	Adjusted Schedule/Method of Preventive Maintenance		Evaluation of possible sewer rehabilitation. 	Ongoing	02/04/2025 20:30	Hydraulic overloading due to extreme storm event	N			SF Bay	Ocean; Slough		Point Isabell to SF Bay	None	Restricted Public Access		State of California	0	N	N												
2	2SSO10170	Active	Richmond City CS	Richmond City	899522	1.2	Amended	Mary Phelps	Water Resource Division Manager	06-FEB-25	18-FEB-25	18-FEB-25	Category 1 Spill	2157 Meeker Ave	02/04/2025 08:40	02/04/2025 08:40	02/04/2025 08:40	02/04/2025 09:27	25-0564	21-MAR-25	SSO discharge from manhole to paved street, curb and gutter, did enter storm water collection system. Event was wet weather/storm associated. See attached photos.	37.92051	-122.34836	Manhole			90300	Spilled onto paved street, curb and gutter.	Y	As a result of hydraulic overloading associated with extreme storm event -Manhole ID: F11MH1533 spilled onto paved street, curb and gutter entered storm drain conveyance system out to Parr Canal Outfall. 	0	0	Manhole ID: F11MH1533= 90,300 gallons to Parr Canal Outfall 	90300	0	Drainage Conveyance System that discharges to surface water; Surface Water		See attached. 	Y	37.92051	-122.34836	37.91967	-122.36256					02/04/2025 21:48	Onsite visual flow monitoring. Observations based on operator training. 	SCADA data from wastewater treatment plant. Onsite visual observations	Flow Exceeded Capacity (Separate Collection System Only); Rainfall Exceeded Design, I and I (Separate Collection System Only)		Gravity Mainline; Manhole		Vitrified Clay		50	See attached area map. 	Y	Mitigated Effects of Spill (specify below)		Posted signage at spill site restricting traffic and access. 	Adjusted Schedule/Method of Preventive Maintenance		Evaluation of possible sewer rehabilitation. 	ongoing	02/04/2025 22:15	Hydraulic overloading due to extreme storm event. 	N			SF Bay	Ocean; Slough		Parr Canal to SF Bay	None	Restricted Public Access		State of California	0	N	Y	Parr Canal - See attached map. 	BOD, TSS, Ammonia, and Fecal Coliform										
5R	5SSO10842	Active	Plumas Eureka Estates CS	Plumas Eureka CSD	899523	1.3	Certified	Jamar Tate 	General Manager 	06-FEB-25	06-FEB-25	06-FEB-25	Category 1 Spill	27 Aspen Circle	02/05/2025 11:59	02/05/2025 12:05	02/05/2025 11:50	02/05/2025 13:15	25-0628		Spill originated from a lateral clean-out located at 27 Aspen Circle.  GPS Coordinates: 39.79546N -120.64927W   	39.79546	-120.64927	Lateral Clean Out (Private)			60	The spill affected an area approximately 10ft wide by 25ft long. Spill is contributed to a blockage in the collection main, possibly mud from recent construction activity in the area for fiber optic installation. 	Y	Storm water drainage conveyance system for the Aspen Circle Condominiums. This system gathers all storm water drainage from the area. Drainage system had significant flow going through it at the time due to recent heavy rain event. 	0	0	Storm water drainage conveyance system for the Aspen Circle Condominiums. This system gathers all storm water drainage from the area and is discharged in to a Golf Course irrigation pond. Drainage system had significant flow going through the system due to heavy rain event. The golf course is currently closed and no irrigation being performed.  	45	0	Drainage Conveyance System that discharges to surface water; Paved Surface		Spill destination for the event includes the immediate pavement area from the spill discharge point. Pavement graded towards a drainage conveyance that discharge to surface water. the surface area of the pavement affected was approximately 10ft wide in the area of discharge, with the flow stream being approximately 20-25ft long. Surface water is an irrigation pond for the Plumas Pines Golf Course.  	Y	39.79543	-120.64943							02/05/2025 13:47	Spill was estimated from flow monitoring, flow seemed to be approximately .5 gpm the area it covered, the time of notification, response time to spill, and measure taken to stop the flow. 	District operators were notified of the spill by maintenance personnel for the condo units around 11:59am. The flow of the spill did not cease until 13:47 when a vacuum truck from Plumas Sanitation pumped out the collection system. .5gpm x 2hrs (approx.)= 60 gallons. 	Debris from Construction; Debris-General		Upper Lateral		Polyvinyl Chloride (PVC)		43	Spill impacted the immediate area, which includes it flowing into the storm drainage conveyance system associated to the condo units. The surface waters of the irrigation pond for the golf course were also impacted, as it received approximately 45 gallons of raw sewage from the discharge. In the winter months, very few residents are present in the area.  	Y	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow		Staff responded immediately to spill location and identified that there was a blockage in the collection system. Operators began making phone calls to plumbing & vacuum truck contractors. Plumas Sanitation responded with a vacuum truck to pump out collection system to stop the discharge. After multiple calls, operators contacted a local plumber who could respond the next morning to  snake  the line a clear the blockage. The District General Manager began making notification calls to Cal OES, Plumas County Health, and the Regional Water Board. Once flow was stopped, staff cleaned the area via garden hose, having the vacuum truck remove any debris from the pavement as it was being sprayed before it entered the drainage. 	Adjusted Schedule/Method of Preventive Maintenance		Corrective actions: Clean entire section of collection system using Waters Vacuum Truck Service- hydro jetting and vacuum removal of FOG & debris. This area is Section #3 of the entire collection system of the District. Sections are cleaned on a rotation, wit each section being cleaned every 3rd year. This section was due for cleaning later this year but scheduling has been moved up and will be cleaned 2/17/2025	Section to be cleaned 2/17/2025	02/06/2025 12:31	 Covers of manholes & cleanouts on collection mains were removed both upstream and downstream to identify where a potential blockage could be located. Manhole located downstream had flow through the trough, indicating the blockage to be upstream from manhole,  either between manhole and spill location. Upstream manhole & cleanout 6-8  inches of standing water, verifying there was a blockage in the line. Due to recent underground installation of fiber optic infrastructure, the contractor was contacted and questioned regarding when and where they had damaged the collection line. Contractor did notify the District at the time of damage and repaired the damage. Damage and repair was in close vicinity of the spill. It is possible that mud & dirt entered line during the repair but was unknown to the contractor. A camera was used before blockage was cleared to identify any debris but nothing definitive was seen. When blockage was cleared there were no observations of FOG contribution.   	N			Plumas Pines Golf Resort Irrigation Pond 	Other (specify below)	Golf Course irrigation pond 	Irrigation pond provides water to golf course when course is open, April-November. When pond is full and has excess water, the excess water flows into the Feather River, during the time of the spill, pond was barely enough to have excess flow into the Feather River. Picture documenting pond level and no flow to river provided in attachments. River level is very high due to heavy weather events.	No observed impacts to aquatic life	Other (specify below)	Public access to pond is restricted year-round by Plumas Pines Golf Resort 	Plumas Pines Golf Resort 	0	N	Y	Fruit Growers Laboratory(FGL) notified to take samples from pond and Feather River. Awaiting sampling results  	Fecal Coliform. Due to wildlife activity in pond and river, it is likely results will be positive.  										
2	2SSO10170	Active	Richmond City CS	Richmond City	899524	1.2	Certified	Mary Phelps	Water Resource Division Manager	06-FEB-25	18-FEB-25	18-FEB-25	Category 1 Spill	1333 Cutting 	02/04/2025 09:45	02/04/2025 09:45	02/04/2025 09:45	02/04/2025 10:20	25-0567		SSO discharged from manhole to street curb and gutter. Did enter storm drain collection system. 	37.93576	-122.34775	Manhole			31925	Spilled onto paved curb and gutter	Y	Strom Drain ID G10SS004	0	0	Manhole ID G10MH1508	31925	0	Street/Curb and Gutter (2 3); Surface Water		See Attached	Y	37.93576	-122.34775	37.92088	-122.36262					02/04/2025 19:50	Onsite flow observations and monitoring. Volume based on operator observations and training, 	SCADA data from wastewater treatment plant. Onsite visual observations. 	Flow Exceeded Capacity (Separate Collection System Only); Rainfall Exceeded Design, I and I (Separate Collection System Only)		Gravity Mainline; Manhole		Vitrified Clay		60	See attached photo and map.	Y	Mitigated Effects of Spill (specify below)		Signage posted at spill site to restrict traffic and access. Unable to clean due to extreme storm event. 	Adjusted Schedule/Method of Preventive Maintenance; Plan Rehabilitation or Replacement of Sewer		Possible rehabilitation of sewer. 	ongoing	02/04/2025 20:30	Hydraulic overloading due to extreme storm event. 	N			SF Bay	Ocean; Slough		Parr Canal and SF Bay	None	Restricted Public Access		State of California	0	N	N												
2	2SSO10170	Active	Richmond City CS	Richmond City	899526	1.2	Amended	Mary Phelps	Water Resource Division Manager	06-FEB-25	18-FEB-25	18-FEB-25	Category 1 Spill	2300 Cutting 	02/04/2025 09:09	02/04/2025 09:09	02/04/2025 09:09	02/04/2025 09:19	25-0562	21-MAR-25	SSO discharge from manhole to street curb and gutter. Unable to contain due to extreme storm event. See Attached.	37.9249	-122.34732	Manhole			115350	Spill onto paved street and gutter	Y	Stormwater ID G11SS001 and G11D002 	0	0	Manhole ID G11MH2456, G11MH2455, G11MH2457	115350	0	Surface Water		Hydraulic overloading due to extreme storm event. Spill reached Meeker Slough. See attached. 	Y	37.9249	-122.34732	37.91476	-122.34419					02/04/2025 19:55	Onsite flow monitoring. Visual observations based on operator training. 	SCADA data from wastewater treatment plant. Onsite visual observations and monitoring. 	Flow Exceeded Capacity (Separate Collection System Only); Rainfall Exceeded Design, I and I (Separate Collection System Only)		Gravity Mainline		Vitrified Clay		50	See attached photos and map. 	Y	Mitigated Effects of Spill (specify below)		Signage posted around spill site to restrict traffic and access. Unable to clean up spill due to extreme storm event. 	Added Sewer to Preventive Maintenance Program; Plan Rehabilitation or Replacement of Sewer		Possible rehabilitation of sewer. 	ongoing	02/04/2025 22:00	Hydraulic overloading due to extreme storm event. 	N			SF Bay	Ocean; Slough		Meeker Slough to SF Bay	None	Restricted Public Access		State of California	0	N	Y	See attached photos and map. 	BOD, TSS, Ammonia, and fecal Coliform										
2	2SSO10170	Active	Richmond City CS	Richmond City	899527	1.2	Amended	Mary Phelps	Water Resource Division Manager	06-FEB-25	18-FEB-25	18-FEB-25	Category 1 Spill	2714 Pierson Ave	02/04/2025 09:05	02/04/2025 09:05	02/04/2025 09:05	02/04/2025 10:28	25-0568	21-MAR-25	SSO discharge from manhole to paved street, curb and gutter, did enter storm water collection system. Event was wet weather/storm associated. See attached photos.	37.91605	-122.34194	Manhole			51845	Spilled onto paved street, curb and gutter.	Y	Manhole ID #E11MH3677 spilled onto paved street, curb and gutter, entered storm drain conveyance system, out to Meeker Slough Outfall and Meeker Slough Outfall Downstream.	0	0	Manhole ID# E11MH3677= 51,845 gallons out to Meeker Slough Outfall	51845	0	Surface Water		See attached map	Y	37.91605	-122.34194	37.91473	-122.3442					02/04/2025 21:32	Onsite flow observation and monitoring based on operator training. 	Onsite observation and monitoring. 	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Vitrified Clay		50	See attached photos and map	Y	Mitigated Effects of Spill (specify below)		Signage posted at spill site, restricted traffic, and access. unable to clean spill due to extreme storm event. 	Added Sewer to Preventive Maintenance Program; Plan Rehabilitation or Replacement of Sewer		Possible rehabilitation of sewer	Ongoing	02/04/2025 21:45	Hydraulic overloading due to extreme storm event. 	Y	Evaluation of possible rehabilitation of sewer	02/04/2025 21:45	SF Bay	Ocean; Slough		Meeker Slough to SF Bay	None	Restricted Public Access		N/A	0	N	Y	Meeker Slough - See attached map and Photos	BOD, TSS, Ammonia, and Fecal Coliform.									Evaluation of possible rehabilitation of sewer	
2	2SSO10114	Active	Sausalito City CS	Sausalito City	899531	1.11	Certified	Eric Graham	Sewer System Coordinator 	06-FEB-25	20-FEB-25	20-FEB-25	Category 2 Spill	501 Sausalito Blvd	01/11/2025 11:10	01/11/2025 12:15	01/07/2025 12:00				Sewage surfaced above a break in the mainline between clean outs in an undeveloped easement and continued to flow downhill approx. 40' into the front side of 501 Sausalito Blvd property.	37.85018	-122.48775	Gravity Mainline			12096	Overflow traveled approx. 30' - 40' down an easement onto 501 Sausalito Blvd Property. Overflow was approx. 2  saturation  15'W x 40'L X 2  Deep. Slight ponding in a few areas. 	N						50	Other (specify below); Unpaved Surface	Destination was in a planter area on the front E side of home in a planter extending over a retaining wall continuing down to the concrete walkway/driveway. Reviewing video, it appears that the SSO had just breached the containment of the lower planter and started to make it to the walkway.	1.d / 1.e represents spill origin. 1.f / 1.g represents spill destination. Sewage surfaced above a break in the mainline between clean outs in an undeveloped easement and continued to  flow downhill approx. 40' into the side/front of 501 Sausalito Blvd property. 	Y	37.85019	-122.48777	37.8501	-122.48774					01/11/2025 14:45	SSC was not onsite during event. Spoke with onsite staff and contractor, after speaking with property owner who reported incident. We ended up using upstream connection method. Staff removed close to 200lbs of saturated contaminated soil off site and disposed of properly. 	Start time/date was determined after interviewing staff, contractors, and property owner who reported incident. Spill end time was documented once the mainline was open and sewer was no longer discharging. 	Other (specify below); Root Intrusion	Pipe Structural/Failure	Gravity Mainline		Vitrified Clay		100	Spill surfaced above a break in the mainline. Flows ran down dirt/weed hill approx. 40' and spilled over 501 Sausalito Blvd retaining wall next to his steps and rocks with minimal saturation on concrete driveway.  I didn't see that the spill went furtherer than that judging by very few pictures that have been supplied to me.	N	Cleaned Up (specify below); Restored Flow		City staff made emergency call out to contractor to open the mainline. Mainline was rodded. after approx. 2hrs the line was opened up. follow up was 2 days later. City had contractor clean line again planning on televising the line looking for defects. City staff removed a large majority of contaminated soil off site to be disposed of properly on Tuesday1/14/2025. SSC identified a hole in pipe and had an emergency repair preformed on 1/15/2025.  Line has been documented with multiple defects and city is planning on preforming a whole replacement of this mainline.  	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer; Post Spill CCTV; Repaired Facilities or Replaced Defect		Line has been documented via CCTV with multiple defects and city is planning on preforming a whole replacement of this mainline in the near future in the spring time/early summer 2025.	Staff cleaned SSO  impacted soils on 1/14/2025 Mainline has been documented on 1/16/2025 City is currently putting a bid package together for full replacement along with a couple other locations.	01/14/2025 09:45	Cause of spill was root intrusion along with missing pipe.  After CCTV, Found continuous defects with root intrusion in multiple joints, many offsets joints, many Longitudinal and circumferential cracks, and a few breaks with soil visible.  Mainline with this many defects warrants full replacement.	N												N													
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	899534	1.2	Certified	David Leamer	Assistant Superintendent		28-FEB-25	28-FEB-25	Monthly Category 3 Spill	354330	01/12/2025 13:00	01/12/2025 13:21	01/12/2025 12:30				See Attached Spill map with Photos.	38.56095	-121.39215	Manhole			262	See Attached Spill Map with Photos	Y	See Attached Spill map with Photos.	257				260	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		See attached Spill Map with Photos.	Y	38.56106	-121.39212	38.56227	-121.39184					01/12/2025 14:15	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		56	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		See Attached Description of Spill Event	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		SacSewer inspected mainline with CCTV on 1/15/25. Based on findings, SacSewer increased preventative cleaning frequency to 24 months from 48 months.		01/13/2025 15:45	A SacSewer manhole spilled to the asphalt, to the curb and gutter, to a storm drain inlet at 21 Grand Rio Cir entering the drainage conveyance system. Since the spill reached the Drainage Sump 92, Salam Khan contacted the City of Sacramento Drainage to shut down the pumps. Control 12 from the City of Sacramento informed us that the pumps have not run since January 4, 2025. SacSewer crews cleaned and recovered all water from storm drain system.		None	01/13/2025 15:45														N/A	SacSewer increased preventive cleaning frequency from 48 months to 24 months.	SacSewer increased preventive cleaning frequency from 48 months to 24 months.	N/A	SacSewer inspected mainline with CCTV on 1/15/25.	N/A	SacSewer increased preventive maintenance frequency on 1/16/25	N/A	None	
2	2SSO10184	Active	San Rafael SD CS	San Rafael Sanitation District	899535	1.3	Certified	Philip Buckley	Principal Civil Engineer	06-FEB-25	18-FEB-25	18-FEB-25	Category 1 Spill	20 Lockwood	02/03/2025 09:17	02/03/2025 09:54	02/03/2025 07:30				Neighbor on the street noticed water coming out of the Rod Hole at 7:30 hours. 	37.988079	-122.485032	Other Sewer System Structure	R639 rod hole in front of 20 Lockwood		125	Gravity mainline backed up and spill exited rod hole on side road.  Spill traveled down street, curb and gutter and entered storm drainage catch basin CB2776 at the NW corner of Lockwood and Robinhood	Y	Once spill entered CB2776 it travels 986' underground before entering Glenwood Creek at HW315.	65	60	discharge came out of R639 traveled down street entered CB2776, traveled down pipe underground to HW315 and entered Glenwood Creek	60	65	Surface Water		spill exited rod hole traveled down street curb and gutter to storm catch basin.  then traveled underground to glenwood creek	Y	37.9881	-122.485047							02/03/2025 10:08	upstream lateral connections for amount discharged from rod hole and measured area for volume collected	5 upstream laterals for 158 minutes	Root Intrusion		Gravity Mainline		Vitrified Clay		65	no visible impact	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		after clearing blockage we washed down street curb and gutter with disinfectant and vacuumed all wash water.  storm drain pipe had water flowing from recent wet weather and we were unable to collect anything	Adjusted Schedule/Method of Preventive Maintenance; Plan Rehabilitation or Replacement of Sewer; Post Spill CCTV		post spill cctv pinpointed joint where roots were entering.  adjusted preventive maintenance schedule for more frequent cleaning until we can get this spot repaired	contractors are currently working up quotes to repair this location	02/03/2025 11:10	crews inserted camera into rod hole and pushed it down while watching monitor and found location where roots were growing into the pipe.  these questions are annoying	N		02/04/2025 08:36	Glenwood Creek	Stream/Creek		its a creek that received year around water from springs	none observed	Other (specify below)	no public access	Marin County Environmental Health Services	0	N	N												
3	3SSO10287	Active	Marina Coast CS	Marina Coast WD	899536	1.2	Certified	Derek Cray	Operations & Maintenance Manager		11-FEB-25	11-FEB-25	Monthly Category 3 Spill	601 Bayonet Ct	02/02/2025 14:40	02/02/2025 15:04	02/02/2025 14:01				The spill originated from a manhole on Bayonet Ct at an approximate rate of 1 gallon per minute.	36.66779	-121.7792	Manhole			88	Upon exiting the manhole, sewage collected in the gutter which then reached the storm drain on the S/W corner of Bayonet Ct/Abrams Dr. From that point, sewage continued to make its way N/W through the storm drain system. Once it reached the North side of Abrams it then continued S/E, where it settled before reaching the next DI. The storm drain system affected by the spill was hydro-cleaned with our Vactor unit. All sewage and water used for cleaning were recovered, removed, and properly disposed of.    	Y	The storm drain system consists of a 16in diameter concrete pipe which flows to a dedicated percolation basin and not waters of the US. The storm system did have dirt/sand, which acted as a natural berm to help contain the spill reach.  	87				88	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Once sewage entered the storm system, it made its way N/W to the DI directly across the street, then S/E towards the last identified DI. During the investigation, it was discovered that sewage did not make it to the last identified DI. Cleaning included all of the affected storm system up to the last identified DI. This was completed to ensure the recovery of all sewage.    	Y	36.66824	-121.7789							02/02/2025 15:30	The spill volume was determined by calculating the spill area on the asphalt, and the concrete gutter, from the manhole up to the storm drain system entry point. The volume in the storm drain system was calculated by first determining the layout of the system and identifying the full reach of the spill within the system. Next, the size of the storm drain pipe and depth of sewage was determined. Once all information was collected, the full spill volume could now be calculated. 	The spill start time was determined by measuring and recording the spill height from the manhole cover, since this cover did not have any open pick holes. This information was captured while the spill was still active. This information allowed for a calculation to determine the estimated gpm of the spill. The total spill path was then calculated to obtain the total spill volume. The total spill volume was then divided by the estimated spill gpm which provided the total spill duration, in minutes. The spill end time was recorded once the vactor relieved the blockage. With the known spill end time, the estimated start time could now be determined. 	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Polyvinyl Chloride (PVC)		25	The impact of the spill was contained to the area around the manhole, gutter, and storm drain system. All sewage was recovered from the storm drain system by utilizing our vacuum truck. The vacuum truck was also used to disinfect and wash down the area around the manhole, asphalt, and gutter. All water used for disinfection was recovered and properly disposed of. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Upon arrival, the required appearance point information was collected.  Once collected, the reporting operators identified the downstream manhole and began to work on relieving the blockage. While one operator was working on relieving the block, the other began to determine the full reach of the spill. Once flow was restored, spill path information was collected to allow for spill volume estimation. Once all required information was collected, disinfection and cleanup of the manhole area, gutter, and asphalt began. Hydro jetting of the affected storm system was also completed to ensure the total recovery of all sewage that entered the system. All water used for cleanup was recaptured and properly disposed of.    	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		This location has been scheduled to be reinspected with the CCTV unit to evaluate the condition and ensure it is operating as designed.  The reinspection is to take place 90 days from the date of the spill. Once the evaluation is completed, we can then determine the next best course of action beyond normal routine maintenance, if found necessary. 		02/02/2025 18:15	On 2/5/2025 the District�s CCTV unit was sent out to investigate the cause of the spill, as well as evaluate the interior of the sewer main. The main was found to be in good condition and made of current PVC materials. The cause of the spill was identified as roots that entered the system through a joint, which then allowed for the build-up of grease (FOG). The jetting crew was called to hydro-clean the main and remove all roots.  The CCTV camera was left in place during the jetting procedure to ensure all roots were completely removed. The sewer main was left in service with no roots extending into the main that could interfere with the flow. 		A re-inspection with the District�s CCTV unit has been scheduled to capture information on how this segment of the sewer main continues to operate. Once the inspection is completed we can then determine the next course of action. The initial inspection identified roots, which had made their way into the system through a joint, as the cause of the spill. All roots were removed with the District�s hydro-jetting equipment. The sewer main was found the be in good condition and made of current PVC material. 	02/05/2025 15:00														N/A	Reinspection to evaluate the condition of this segment has been scheduled. CCTV inspection in 90 days will allow for an evaluation to see how this segment of the sewer main is operating. Once the inspection has been completed, we can then determine the next best course of action beyond routine maintenance, should it be found necessary.  	This location has been scheduled to be reinspected to evaluate the operation of this segment of the sewer main. If the information collected identifies a need for more than routine maintenance, the schedule will be adjusted accordingly. If deemed necessary, this location may be placed on the District's trouble spot list and/or subject to be reinspected. 	Currently, there is no planned replacement for this segment of sewer main. 	This location did receive a post spill inspection with the District's CCTV unit. A follow-up inspection is scheduled to take place to reevaluate the current operation of this main. Depending on what is observed, this location may be placed on the District�s trouble spot list with increased maintenance frequency or scheduled for another inspection. 	Currently, the District has no improvement plans for this segment of sewer main. 	N/A	No spill response modification is required. 	A re-inspection with the District�s CCTV unit has been scheduled to capture information on how this segment of the sewer main continues to operate. Once the inspection is completed we can then determine the next course of action. The initial inspection identified roots, which had made their way into the system through a joint, as the cause of the spill. All roots were removed with the District�s hydro-jetting equipment. The sewer main was found the be in good condition and made of current PVC material. 	
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	899537	1.2	Certified	Daniel Whitlock	Manager	06-FEB-25	19-FEB-25	19-FEB-25	Category 2 Spill	Marina Blvd	02/04/2025 09:08	02/04/2025 10:00	02/04/2025 09:00				Flooding came up from manholes and catch basins on Marina Blvd between Divisadero and Broderick St.	37.80561	-122.444	Manhole; Other (specify below)	Catchbasins		485600	Flooding occurred on section of Marina Blvd between Divisadero and Broderick St.	N						485600	Other (specify below); Street/Curb and Gutter (2 3)	Combined System Catchbasins.	Marina Blvd between Divisisdero and Broderick. Final Spill Destination:  N-59175 N-52652 N-59173 N-59172	Y	37.80561	-122.444	37.80538	-122.44569					02/04/2025 16:15	H&H Hydraulics	H&H Hydraulics used following assets in model:  N-11084 N-11198 N-418785 N-75203 N-24844	Surcharged Pipe (Combined Collection System Only)	Sewer exceeded capacity due to storm.	Gravity Mainline		Concrete	Reinforced concrete.  Concrete Box 48 years P-133307	112	Road was flooded but no closures occured.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below)	Returned all spill to combined system.	Cleaned and washed down area. Put barricades up to notify public.	Other (specify below)	Flood due to sewer exceeding capacity due to rain.	N/A Flooding due to sewer exceeding capacity.	Spill Starts: 2/4/2025 02:45 Spill Ends: 2/4/2025 16:00 Clean Up Begins: 2/4/2025 10:00 Clean Up Ends: 2/4/2025 19:00	02/04/2025 19:00	Sewer exceeded capacity due to storm event.	N												N													
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	899538	1.3	Certified	Daniel Whitlock	Manager	06-FEB-25	19-FEB-25	19-FEB-25	Category 2 Spill	111 Toland St.	02/04/2025 09:05	02/04/2025 09:45	02/04/2025 01:55				Flood came from manholes and catchbasins N-2848, N-65175, and N-65174.	37.74641	-122.3967	Manhole; Other (specify below)	Catch Basin		130000	In front of 111 Toland St. by Deli Lama restaurant.	N						130000	Other (specify below); Paved Surface; Street/Curb and Gutter (2 3)	Combined System Catch basins	Surcharge of system coming out of low point @ street manhole N-29408 in front 111 Toland St.	Y	37.74641	-122.3967							02/04/2025 16:40	H&H Hydraulics	Hydraulic model used N-28408.	Surcharged Pipe (Combined Collection System Only)	Sewer system exceeded capacity due to storm.	Other (specify below)	No System Failure , capacity related spill 	Vitrified Clay	P-342981	37	Flooded roadway but no closures of street.	Y	Cleaned Up (specify below); Contained All or Portion of Spill		Vaccumed up surcharged water from street. Washed down street.	Other (specify below)	Surcharge due to sewer system exceeding capacity from storm.	Surcharge due to sewer system exceeding capacity from storm.	Spill Start: 2/4/2025 01:55 Spill End: 2/4/2025 16:40 Cleanup start: 2/4/2025 10:00 Cleanup End: 2/5/2025 09:00	02/05/2025 09:00	Sewer system exceeded capacity due to storm.	N												N													
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	899541	1.2	Certified	Daniel Whitlock	Manager	06-FEB-25	19-FEB-25	19-FEB-25	Category 2 Spill	1925 Evans St.	02/04/2025 07:30	02/04/2025 08:30	02/04/2025 02:15				Flood came from assets N-335324, N-343133, and N-335325.	37.74637	-122.39443	Manhole; Other (specify below)	Catch basin		220000	Spill contained to Evans and Toland.	N						220000	Other (specify below); Paved Surface; Street/Curb and Gutter (2 3)	Combined system catch basins.	Spill occurred on Evans Ave. near Selby. All spill was returned to the combined sewer system.	Y	37.74637	-122.39443							02/04/2025 09:30	H&H Hydraulics	Hydraulics used assets N-335324, N-343133, and N-335325 to run the model.	Surcharged Pipe (Combined Collection System Only)	Sewer system exceeded capacity due to storm.	Other (specify below)	Not a failure , System exceeded capacity 	Vitrified Clay		80	None. No roads were closed.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below)	Returned all spill to combined sewer system.	Area was washed and disinfected vaccons arrived to clear catch basins.	Other (specify below)	Flood due to sewer system exceeding capacity due to storm.	Sewer System Exceeded capacity due to storm.	Spill Start: 02:10 Spill End: 09:30 Cleanup start: 2/4/2025 12:10 Cleanup End: 2/4/2025 13:00	02/04/2025 13:00	Sewer system exceeded capacity due to storm.	N												N													
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	899542	1.1	Certified	Daniel Whitlock	Manager		27-MAR-25	27-MAR-25	Monthly Category 3 Spill	157 Villa Terrace	02/04/2025 15:17	02/04/2025 15:30	01/31/2025 12:00				Lower portion of backyard at 157 Villa Terrace. Coming out of upper lateral L-172928 and the blockage was in main sewer P-79377.	37.7579037	-122.4460976	Upper Lateral (Private)			156	Spill only daylighted in the backyard of 157 Villa Terrace.  Private trap showed evidence of spill , small amount of pooled water and debris until team member began hydroflushing with water that flowed into the spill area documented below.   noticed tracing dye added to upstream manhole and called for mainline flushing.. 	N						0	Unpaved Surface		Spill event destination was confined in the backyard of 157 Villa Terrace on approximately 25' x 5' area.  	Y	37.7579037	-122.4460976							02/04/2025 19:35	Length = 25 ft Width = 5 ft Depth = 2 inch  25ft x 5ft x 0.167ft x 7.48 x 100% wet = 156 gallons	Measured volume- Measurement of spill in backyard. 	Root Intrusion		Gravity Mainline		Vitrified Clay		105	Contained in backyard of 157 Villa Terrace.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow	Returned portion of spill to combined system.	Upon identifying exactly where the blockage was called for vactor to use for restoring flow to main sewer, coordinated spill clean up. Also removed all contaminated soil.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer; Post Spill CCTV		CCTV WO 8747980 completed 2/5/2025 WO# 8749078 for repair of asset P-79377 completed on 3/10/2025.		02/05/2025 11:00	Root intrusion found via CCTV inspection of 8  VCP Main sewer. 		None.. Repair of defect in pipe is completed . 	02/06/2025 07:35														N/A	N/A	Will add to annual pm program.	WO #8749078 for repair of asset P-79377 completed 3/10/2025. 	P-79377	N/A	N/A	None	None.. Repair of defect in pipe is completed . 	
4	4SSO10498	Active	UC Los Angeles CS	UC Los Angeles	899545	1.2	Certified	Ivy Nunez	Environmental Compliance Specialist	06-FEB-25	18-FEB-25	18-FEB-25	Category 1 Spill	Bradley Hall	02/03/2025 15:37	02/03/2025 12:30	02/03/2025 11:00	02/03/2025 17:00	25-0552		Overflow began inside Bradley Hall, overflow eventually reached curb and flowed downhill to storm drain conveyance system.	34.06972	-118.44919	Gravity Mainline; Inside Building or Structure			300	200-400 overflow within Bradley Hall, overflow exited building at curb and contained sewage odor. 	Y	Drainage conveyance system attached to Phase 1 MS4 system that goes to Sepulveda Channel then to Ballona Creek.	100	300	Drainage conveyance system attached to Phase 1 MS4 system that goes to Sepulveda Channel then to Ballona Creek.	300	100	Building or Structure; Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Overflow began in Bradley Hall basement level, this overflow exited out of the storm drain outlet and flowed down the street to the nearest storm drain.	Y	34.07002	-118.44892							02/03/2025 12:30	Based on duration and flow. 6 hours of time elapsed of overflow, times 1.2 gallons per minute flow rate, equals 300 gallons.	Personnel caught spill at basement level and assumed start time based on the current overflow at the scene.	Other (specify below)	Mainline Break in the building	Other (specify below)	Possible force main, however there is still investigation for the exact break as it is not easily accesible.	Other (specify below)	Unknown, as exact location of pipe broken has not been found.	3	Impacted area of overflow within building, however the overflow was able to be cleaned, and no damage is visible.	N	Cleaned Up (specify below); Contained All or Portion of Spill	We took several steps to divert and absorb the overflow. Absorbent socks were placed where they helped control flow. We did our best to prevent flow from making it to the storm drains. We had the areas pumped out where there were large amounts gathered, a 3rd party vendor assisting with pumping out overflow. Once the larger sections were cleaned up and the absorption pigs disposed of, an absorbent product was put down to gather up the remaining fluid and debris. That was left overnight and brushed swept cleaned and disposed of the next day. 	We took several steps to divert and absorb the overflow. Absorbent socks were placed where they helped control flow. We did our best to prevent flow from making it to the storm drains. We had the areas pumped out where there were large amounts gathered, a 3rd party vendor assisting with pumping out overflow. Once the larger sections were cleaned up and the absorption pigs disposed of, an absorbent product was put down to gather up the remaining fluid and debris. That was left overnight and brushed swept cleaned and disposed of the next day. 	Other (specify below)	This is still being worked on to date. We will have to shut down the building and dig out under the foundation unfortunately where the break is its under and behind a retaining wall.	This is still being worked on to date. We will have to shut down the building and dig out under the foundation unfortunately where the break is its under and behind a retaining wall.	To be determined after investigation is complete.	02/03/2025 12:30	Building and water was closed off for investigation of cause of spill. Both remain closed off until location of main line break can be determined. Location has been found to be underground behind retaining wall. Further investigation and work needed. 	Y	We need to determine source of mainline break. The location is not easily accessible for repairs and corrections.	02/28/2025 10:26	Ballona Creek	Ocean; Stream/Creek		Ballona Creek is a nine-mile long flood protection channel that drains to the Los Angeles basin, from the Santa Monica Mountains on the north, the Harbor Freeway (110) on the east, and the Baldwin Hills on the south.  The Ballona Creek Watershed totals about 130 square miles. Its land use consists of 64% residential, 8% commercial, 4% industrial, and 17% open space. The major tributaries to the Ballona Creek include Centinela Creek, Sepulveda Canyon Channel, Benedict Canyon Channel, and numerous storm drains. The watershed is comprised of all or parts of the Cities of Beverly Hills, Culver City, Inglewood, Los Angeles, Santa Monica, West Hollywood, and unincorporated Los Angeles County.	No impact	Other (specify below)	None	Ballona Water Creek Managment	0	N	N											We need to determine source of mainline break. The location is not easily accessible for repairs and corrections.	
4	4SSO10416	Active	Pasadena City CS	Pasadena City	899546	1.6	Certified	Brent Maue	Acting City Engineer	06-FEB-25	11-FEB-25	11-FEB-25	Category 1 Spill	3644 E Foothill Blvd, Pasadena CA	03/13/2023 14:25	03/13/2023 14:35	03/13/2023 14:15				Spill was at a clean out located inside a paved parking lot.	34.1499	-118.07443	Lateral Clean Out (Private); Upper Lateral (Private)	Spill was at a private lateral cleanout that was caused by  a blockage in the public sewer system.		500	Spill was at the lateral clean out attached to the building inside a paved parking lot. 	Y	Storm drain near the entrance of the parking lot. 	400	100	A storm drain near the entrance of the private parking lot. 	0	400	Drainage Conveyance System that discharges to surface water		The spill exited a private lateral on a property at the intersection of Rosemead Blvd and Foothill Blvd and entered at catch basin that eventually drains to the Rio Hondo. 400 gal of the 500 gal spill was collected. It is uncertain how far the remaining 100 gal reached.	N									03/13/2023 14:45	It was based on the size of the spillage and flow by calculating the  diameter of the clean out pipe and observing the height and velocity of  the flow coming out of the lateral.	See response in #3.	Debris-Rags; Fats, Oil and Grease (FOG)		Gravity Mainline; Manhole		Vitrified Clay		25	The downstream water body is the Rio Hondo. The impact is uncertain.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		See response on #9.	Adjusted Schedule/Method of Preventive Maintenance		See response on #10.	The city implements a maintenance program and FOG control program with milestones explained in the city's SSMP.	03/13/2023 14:45	Excessive rags and grease inside public sewer main.	N			Rio Hondo	Wash		Flood Control Channel	No observed impact in aquatic life.	Other (specify below)	No public access impact	NA	0	N	N												
5S	5SSO11362	Active	SMD No. 2 CS	Placer Cnty Dept of Facility Services	899547	1.2	Certified	Robin Mahoney	Utility Program Manager	06-FEB-25	11-FEB-25	11-FEB-25	Category 1 Spill	MH B14-02 at Muir Way	02/04/2025 10:09	02/04/2025 10:48	02/04/2025 10:00	02/04/2025 11:28	25-0571		Spill emerged from manhole B14-02 which is 12 feet from edge of Linda Creek	38.730376	-121.175093	Manhole			5440	Spilled directly into Linda Creek	Y	Linda Creek	0	5440	Sewage flowed directly out of the manhole and into the creek	5440	0	Drainage Conveyance System that discharges to surface water		Linda Creek	Y	38.730376	-121.175093							02/04/2025 11:20	Spill volume was attached by using in-house spill training. The attached photo demonstrates a manhole lid spilling 60 gallons per minute. The other attached photo demonstrates 70 gallons per minute and the result is a floating lid. Pictures taken during the spill compared to the training photos assisted in determining the spill was over 60pgm but under 70gpm. Calculation is based on 68 gpm x duration of the spill (80 minutes) results in a total of 5,440 gallons spilled. See attached training photos.	Used training photos demonstrating amount of wastewater flowing out of a manhole (see attached) and calculated width and length of the spill in feet (see attached).	Root Intrusion		Manhole		Vitrified Clay		41	The entire spill flowed directly into Linda Creek. There was no containment and no recovery of the spill.	Y	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow		Resources sent immediately after notification of spill, including a crew supervisor, 5 additional personnel, a hydro-vac, and a CCTV van. Upon determination of a gravity line blockage, cleared the roots with a root cutter on the hydro hose. Installed internal point repair over joint. Blockage was relieved and flow restored. Inspected gravity line with CCTV. Cleanup included raking and retrieval of solids and pulp, which were disposed of at a treatment plant/authorized facility. The blockage was cleared at 11:20am and OES was contacted at 11:28am. Placer County Environmental Health Services was contacted at 11:35am. Full cleanup was completed at 12:41pm.	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV; Repaired Facilities or Replaced Defect		Complete root cutting and installation of internal point repair over joint. CCTV of the line,	N/A	02/04/2025 12:41	CCTV of line and determined root intrusion/root ball, which was cut out.	N			Linda Creek	Stream/Creek		Creek 	None	Other (specify below)	None	N/A	0	Y	N												
2	2SSO10114	Active	Sausalito City CS	Sausalito City	899550	1.4	Certified	Eric Graham	Sewer System Coordinator 	06-FEB-25	20-FEB-25	20-FEB-25	Category 2 Spill	116 West Street	02/02/2025 14:11	02/03/2025 06:50	02/01/2025 08:00				#1) 116 BWPD CCV backed up on the W side of property conveying sewage N. Flows continued to travel N  and under the parking structure of 118 West St. The flows continued to head in the N passing underneath parking  structure finding its way through a pile of concrete construction debris heading NE towards the NW corner of 118  West then continuing between 120 West & 118 West St. Approx 98' in total length in an un-landscaped area. #2) 114 BWPD CCV backed up on the N side of property conveying sewage W between and spilling on both 114 West and 116 West St. Flows impacted the brick walkway and entrance of the lower unit at 116 West running down  the yard and into the garden area. Flows on the 114 West side ran N down the side yard through the black rocks and over the bench ending up impacting the flagstone patio making its way NE with the slope of the patio into an  un-landscaped dirt area approx. 68'       	37.84856	-122.48342	Backflow Prevention Device; Lower Lateral (Private)			24192	#1) 116 BWPD CCV backed up on the W side of property conveying sewage N. Flows continued to travel N  and under the parking structure of 118 West St. The flows continued to head in the N passing underneath parking  structure finding its way through a pile of concrete construction debris heading NE towards the NW corner of 118  West then continuing between 120 West & 118 West St. Approx 98' in total length in an un-landscaped area. #2) 114 BWPD CCV backed up on the N side of property conveying sewage W between and spilling on both 114 West and 116 West St. Flows impacted the brick walkway and entrance of the lower unit at 116 West running down  the yard and into the garden area. Flows on the 114 West side ran N down the side yard through the black rocks and over the bench ending up impacting the flagstone patio making its way NE with the slope of the patio into an  un-landscaped dirt area approx. 68'       	N						10	Other (specify below); Unpaved Surface	Landscaped area, Patio, and walk ways	#1) 116 BWPD CCV backed up on the W side of property conveying sewage N. Flows continued to travel N  and under the parking structure of 118 West St. The flows continued to head in the N passing underneath parking  structure finding its way through a pile of concrete construction debris heading NE towards the NW corner of 118  West then continuing between 120 West & 118 West St. Approx 98' in total length in an un-landscaped area. #2) 114 BWPD CCV backed up on the N side of property conveying sewage W between and spilling on both 114 West and 116 West St. Flows impacted the brick walkway and entrance of the lower unit at 116 West running down  the yard and into the garden area. Flows on the 114 West side ran N down the side yard through the black rocks and over the bench ending up impacting the flagstone patio making its way NE with the slope of the patio into an  un-landscaped dirt area approx. 68'  	Y	37.84856	-122.48342	37.84872	-122.48323	37.84859	-122.48316	37.8485	-122.48315	02/03/2025 09:31	Used eyeball method. Area volume was difficult due to the recent storm and everything being wet. Utilized upstream connection method.	Used eyeball method. Area volume was difficult due to the recent storm and everything being wet. Utilized upstream connection method. We had a partial blockage in the system. Witnessed flow downstream but there was a noticeable lack of normal flow leading me to believe there was a 80% partial blockage in the mainline. 	Debris-General; Debris-wipes/Non-disposables; Other (specify below)	Found a dishtowel sized piece of cloth material that appeared to be obstructing the mainline. This was discovered while trying to open the mainline with a combo truck along with some rock and grit. 	Gravity Mainline		Ductile Iron		100	Spill impacted 3 properties.  Spill destination for 116 West St ended up between 120 and 118 West St. about midpoint in the dirt alley way.  Spill traveled approx. 98' from 116 West St across 118 West St and ended up between 2 properties. Spill from 114 West St ended up on 116 West and 114 West properties extending approx. 68'. The spill on  116 West from 114 West traveled down the brick walkway and ended up in the garden of 116 West St. The spill from 114 traveled down their side yard into the backyard. Flows traveled across some black rocks and over a  flagstone bench ending up on the flagstone patio. The flows on the patio flowed with the slope and ended up in  dirt un-landscaped area of the yard. 	Y	Cleaned Up (specify below); Restored Flow		Verified that there was an active SSO. Used a Combo truck to open the mainline. Requested additional staff to assist in the cleanup. Interviewed neighbors to get information regarding start time. Raked and shoveled soiled debris from properties. Debris was hauled off and properly disposed of. Followed up with disinfectant spray called LIfeGuard on all exposed surfaces. Followed up the following day with an additional disinfectant application.  	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below)	This line is suspended under a bridge. This line has a slight sag in which has a history of collecting debris.  This line will be considered a candidate for future replacement. 	Maintenance schedule will be adjusted as well as added to a frequent inspection location.	Mainline will be televised to determine if any unknown defects exist. Line will be added to replacement list for FY2025-2026	02/03/2025 09:31	Found a dishtowel sized piece of cloth material that appeared to be obstructing the mainline. This was discovered while trying to open the mainline with a combo truck along with some rock, grit and rags. Assuming the towel and rags got hung up on rock in a sag leading to the SSO. Mainline was successfully opened up with minimal effort. Continued to run line a few more times to remove any other debris. 	N												N													
2	2SSO10114	Active	Sausalito City CS	Sausalito City	899551	1.3	Amended	Eric Andrew Graham	Sewer System Coordinator 	18-FEB-25	20-FEB-25	20-FEB-25	Category 1 Spill	2310 Marinship Way	02/05/2025 10:05	02/05/2025 10:17	02/05/2025 09:53				Manhole was backed up. When arrival on site, manhole water level was approx. 5  bellow rim grade. Area was wet  around manhole with some ponding. Hard to estimate considering the amount of rain the city received from the  storm on Feb 4, 2025. Lot of standing water throughout the city. It appears that sewage left the manhole and traveled approx. 300' NE to the SD inlet which led to a manhole then a vault then the bay.	37.86483	-122.49657	Manhole			202	Manhole was backed up. When arrival on site, manhole water level was approx. 5  bellow rim grade. Area was wet  around manhole with some ponding. Hard to estimate considering the amount of rain the city received from the  storm on Feb 4, 2025. Lot of standing water throughout the city. Appears that sewage left the manhole and traveled approx. 300' NE to the SD inlet which led to a manhole then a vault then the bay.	Y	Drainage system is considered private. Spill traveled NE along parking stalls rounded a corner and entered a drainage system. The drainage inlet system connects to a SD Manhole at approx. 25'  with combined flows from multiple flows. Travels NE Approx. 30' to a vault then travels an additional 300' NE and discharges into Richardson Bay.	50	10	Sewage left the manhole and traveled approx. 300' NE to the SD inlet which led to a manhole then a vault then the bay.	22	180	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		SSO reached a private storm drain that discharges into Richardson Bay. With the amount of flows within the drain with natural waterflow, It is very likely the SSO reached the bay. 	Y	37.86481	-122.49659	37.86542	-122.4959	37.86606	-122.49498			02/05/2025 10:17	Spill volume was determined by area volume calculations. Eyeball method was also used. 	Spill start time was determined by interviewing the reporting party and city staff that were doing maintenance in the park that morning. The reporting party walks the property multiple times a day and reported the incident as soon as they noticed it. after interviews, an approx. start time has been determined.	Debris-Rags; Other (specify below)	Public Restroom is connected to this line. Historical problems with this area due to vandalism before and during homeless encampment. Parks been closed for some time but recently re-opened. Earlier this week, (2/3/25) the bathrooms were backed up with a blockage inside the bathroom. I had  this mainline cleaned that day. I find it suspect that the line backed up a few days later. 	Gravity Mainline		Vitrified Clay		60	Impacted drainage channel between parking stalls and street. Impacted walkway slope from sidewalk to street. Impact to storm drainage system and potentially Richardson Bay.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Verified that we had a SSO. Evidence of discharge was likely. Opened the manhole and observed the manhole was approx. 5  from breaching. Called a contractor that was already in the city working for the city to bring their combo truck over. I picked up the city's combo truck and immediately set the truck up in the storm drain the SSO had entered. Contractor showed up and opened up the mainline. Contractor started cleaning the roadway with their combo truck towards where the city was set up protecting the storm drain. As this was happening, City staff proceeded to pull all water back to the combo truck wit a flusher nozzle.  after contractor had fully cleaned up the roadway, they were instructed to run the storm drain line and vacuum out all remaining potentially contaminated water with flusher truck.  	Post Spill CCTV		Area added to frequent inspection list.	Scheduling a Post CCTV inspection. 	02/05/2025 12:23	Manhole was backed up. While using a combo truck, It was noticed that a soft stoppage was felt roughly 59' downstream of the manhole. Downstream was not accessible due to a blind connection to Sausalito Marin City Sanitary District interceptor line. Utilizing combo trich to pull any debris back upstream to the manhole, Nothing out of the ordinary was observed.	N			Richardson Bay	Other (specify below)	Richardson Bay	Bay 	unknown	Other (specify below)	Reported incident to Marin Environmental Health department. Due to the small amount of discharge to the bay, Signs / closures, and  samples were not required.  	N/A	0	N	N												
5S	5SSO10893	Active	City Of Folsom CS	Folsom City - Environmental & Water Resources Dept	899554	1.2	Certified	Marcus Yasutake	Environmental & Water Resources Director	07-FEB-25	10-FEB-25	10-FEB-25	Category 1 Spill	4356 Hummingbird Circle, Folsom, CA 95630	02/05/2025 10:19	02/05/2025 11:18	02/05/2025 05:00	02/05/2025 12:19	25-0626		The spill traveled from the overflowing manhole (SS-B20-1-54064) located in the bike trail to both sides of the trail (north and south). On the north side of the bike trail, the spill pooled along the bike trail and within the vegetation area and did not reach the hydromodification basin. The spill on the south side of the bike trail traveled down a grassy swale and entered Alder Creek. 	38.6254167	-121.1122278	Manhole; Other (specify below)	The spill traveled from the overflowing manhole (SS-B20-1-54064) located in the bike trail to both sides of the trail (north and south). On the north side the bike trail, the spill pooled along the bike trail and within the vegetation area and did not reach the hydromodification basin. The spill on the south side of the bike trail traveled down a grassy swale and entered Alder Creek		13895	The spill traveled from the overflowing manhole (SS-B20-1-54064), Latitude: 38� 37' 31.50  N, Longitude: 121� 06' 44.02  W and pooled in a pentagonal footprint (1,431 square feet, approximately 1-inch deep, with 892 gallons recovered from the pooled area) on the north side of the bike trail, Latitude: 38� 37' 31.74  N , Longitude: 121� 06' 44.74  W. Additionally, the spill also traveled 101 feet south from the overflowing manhole and bike trail down a grassy swale and into Alder Creek (Latitude: 38� 37' 30.38  N, Longitude: 121� 06' 43.98.  W)	N				The spill traveled from the overflowing manhole (SS-B20-1-54064) located in the bike trail to both sides of the trail (north and south). On the north side the bike trail, the spill pooled along the bike trail and within the vegetation area and did not reach the hydromodification basin. The spill on the south side of the bike trail traveled down a grassy swale and entered Alder Creek. 	12973	892	Other (specify below); Paved Surface; Surface Water; Unpaved Surface	Alder Creek	The spill traveled from the overflowing manhole (SS-B20-1-54064), Latitude: 38� 37' 31.50  N, Longitude: 121� 06' 44.02  W and pooled in a pentagonal footprint (1,431 square feet, approximately 1-inch deep, with 892 gallons recovered from the pooled area) on the north side of the bike trail, Latitude: 38� 37' 31.74  N , Longitude: 121� 06' 44.74  W. Additionally, the spill also traveled 101 feet south from the overflowing manhole and bike trail down a grassy swale and into Alder Creek (Latitude: 38� 37' 30.38  N, Longitude: 121� 06' 43.98.  W)	Y	38.6254167	-121.1122278	38.6254833	-121.1124278	38.6251056	-121.1122167			02/05/2025 11:37	Staff determined the spill volume by measuring the area of the spill using photos and google earth, determining the spill start/end time, Duration and Flow Rate Comparison (DFRC) method, Area Volume (AV) Method, along with experience/training. The spill volume and spill recovered estimations were calculated using the same methodology described above.  Using DFRC Method, the spill discharged from SSMH at 35 gpm from 5:00 a.m. to 11:37 a.m. (397 min.) and a total spill volume of 13,895 gallons.  Using AV method, the spill traveled from the overflowing SSMH, pooled in a pentagonal footprint of 1,431 square feet, 1-inch deep, with 892 gallons recovered from the pooled area north of the bike trail. The spill also traveled 101 feet south of the SSMH into Alder Creek with 0 gal. recovered from creek.  Staff estimated 30 gal. lost to absorption/saturation.  Total volume of the spill was 13,895 gal. 892 gal. was recovered. 30 gal. was lost due to absorp/sat. Remaining 12,973 gal. entered creek.	The spill start time (5:00 a.m.) was determined based on witness statements and the flow coming out of the manhole.  The spill end time was determined based on when the blockage was broken and flow was restored with the vac truck at 11:37 a.m.	Debris from Construction; Other (specify below)	Construction debris consisted of a 2 x12  wooden board that was 5 feet long and a 10-inch sewer construction plug.	Gravity Mainline		Polyvinyl Chloride (PVC)		7	The spill traveled from the overflowing manhole (SS-B20-1-54064) located in the bike trail to both sides of the trail (north and south). On the north side of the bike trail, the spill pooled along the bike trail and within the vegetation area and did not reach the hydromodificiation basin. The spill on the south side of the bike trail traveled down a grassy swale and entered Alder Creek. Water samples were taken of Alder Creek and were brought to the lab for analysis. Three Sewer Spill Notice signs were posted in the area alerting the residents of the spill and to contact the Wastewater Collections Department for any questions. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Mitigated effects by using vac truck to clear blockage, spray disinfectant, wash the contaminated area and restored flow. Cal OES was notified within 2 hours of confirming it was a sewer spill.	Mitigated effects by using vac truck to clear blockage, spray disinfectant, wash the contaminated area and restored flow. Cal OES was notified at 12:19 p.m., within 2 hours of confirming it was a sewer spill.  Using two combo units in combination together along with brooms and shovels, the area was cleaned by spraying high pressure water and disinfectant toward the second combo truck with suction.	Other (specify below)	No corrective action needed. Removed construction debris (2 x12  wood 5 ft long and sewer construction plug), flushed and cleaned the sewer mainline. No follow up needed.	The spill was caused by construction debris. Specifically a 5 ft 2 x12  piece of wood and a sewer construction plug.	No major milestones.	02/05/2025 13:05	Removed construction debris (2 x12  wood 5 ft long and sewer construction plug), flushed and cleaned the sewer mainline. No follow up needed.	N			Alder Creek	Stream/Creek		Alder Creek	City Staff did not observe any impacts to aquatic life. No roads were closed, but 3 Sewer Spill Notice signs were posted in the area alerting the residents that the spill had occurred and provided the Wastewater Collections Department Phone Number for any questions. Additionally, samples of Alder Creek were taken to the lab for analysis.	Other (specify below)	 No roads were closed, but 3 Sewer Spill Notice signs were posted in the area alerting the residents that the spill had occurred and provided the Wastewater Collections Department Phone number. Additionally, samples of Alder Creek were taken to the lab for analysis. 	City of Folsom	0	N	Y	Three samples were taken, upstream from the spill entry point, at the point of entry, and further downstream.	The water was sampled for 30 Tube Fecal, total coliform/fecal with a 5-day turn around.										
2	2SSO10147	Active	Las Gallinas CS	Las Gallinas Valley Sanitary District	899555	1.3	Certified	Greg Pease	Collection System/Maintenance/Safety Manager	07-FEB-25	21-FEB-25	21-FEB-25	Category 1 Spill	127 Gable Ct, San Rafael	02/04/2025 09:27	02/04/2025 09:27	02/04/2025 09:27	02/04/2025 11:20	25-0570		Manhole upstream of pump station. This is the low spot and where the SSO occurred due to large storm. The pump volume of what was in the system exceeded the capacity of the station. The estimation of what spilled was visually based and appeared to be approximately 100 GPM.	38.00576	-122.53322	Gravity Mainline			5200	The manhole was directly upstream of the Civic Center Pump Station. It is located in an wooded easement, next to a seasonal creek. The SSO spilled directly to the creek and did not allow for any containment or cleanup.	N				The manhole was directly upstream of the Civic Center Pump Station. It is located in an wooded easement, next to a seasonal creek. The SSO spilled directly to the creek and did not allow for any containment or cleanup.	5200	0	Other (specify below)	Seasonal creek	The manhole was directly upstream of the Civic Center Pump Station. It is located in an wooded easement, next to a seasonal creek. The SSO spilled directly to the creek and did not allow for any containment or cleanup.	Y	38.00598	-122.53299							02/04/2025 10:19	The spill occurred at the heaviest flows of a large storm. The only means to estimate the size of the spill were visual, multiplied by the duration. We estimate that the spill was approximately 100 gpm and lasted for 52 minutes, totaling 5200 gallons	The spill was discovered by staff who walked across the street from the Civic Center Pump Station and saw that the manhole was beginning to overflow. Once the SSO was observed, staff waited to determine the flow until it reached its peak Gallons Per Minute. We used the peak flow visual estimation for the entire duration of the SSO.	Flow Exceeded Capacity (Separate Collection System Only)		Gravity Mainline; Pump Station - Mechanical		Polyvinyl Chloride (PVC)		29	Limited. There was so much flow that the amount of sewer to rain water was minimal.	Y	Other Enforcement Agency Notified		None, due to heavy rain event and location of the SSO	Other (specify below)	Capital Improvement Project Study is under way for pump station capacity improvements.	Capital Improvement Project Study is under way for pump station capacity improvements.	Schedule not yet established. Will be a product of the new study.	02/18/2025 12:30	Ongoing investigation currently being conducted	Y	Capacity study to determine upcoming design improvements. This location has never been an issue in the past and we need to determine if this event requires station upgrades related to pump sizing, wet well capacity, or any other factors that may be discovered.	06/30/2025 15:30	Gallinas Creek	Stream/Creek		Seasonal tributary to Gallinas Creek	None	Other (specify below)	This area has limited access by public. Marin Environmental Health was consulted and they determined there was no further action required by the district.	Marin county environmental health	0	N	N											Capacity study to determine upcoming design improvements. This location has never been an issue in the past and we need to determine if this event requires station upgrades related to pump sizing, wet well capacity, or any other factors that may be discovered.	
2	2SSO10170	Active	Richmond City CS	Richmond City	899556	1.3	Certified	Mary Phelps	Water Resource Division Manager	07-FEB-25	18-FEB-25	18-FEB-25	Category 1 Spill	Hoffman & S. 13th St	02/04/2025 15:40	02/04/2025 15:45	02/04/2025 15:30	02/04/2025 16:38	25-0585		Spill originated from manhole due to hydraulic overloading. See Attached Photos	37.9226	-122.35662	Manhole			28450	See attached Photos	Y	Discharged to stormwater conveyance system during extreme rain event and was unrecoverable. See Attached Photos	0	0	Discharged to stormwater conveyance system during extreme rain event and was unrecoverable. See Attached Photos	28450	0	Surface Water		See attached map	Y	37.9226	-122.35662	37.91967	-122.36256					02/04/2025 21:20	Onsite flow monitoring visual observations based on operator training. 	SCADA data from wastewater treatment plant, onsite visual observations.	Flow Exceeded Capacity (Separate Collection System Only); Rainfall Exceeded Design, I and I (Separate Collection System Only)		Gravity Mainline		Vitrified Clay		50	See attached photos and map	Y	Mitigated Effects of Spill (specify below)		Signs posted at spill site, and restricted traffic and access. Unable to clean up spill due to extreme storm event	Added Sewer to Preventive Maintenance Program; Plan Rehabilitation or Replacement of Sewer		Possible rehabilitation of sewer	ongoing	02/05/2025 21:45	hydraulic overloading due to extreme storm event	Y	Evaluation of possible rehabilitation of sewer	02/04/2025 21:45	SF Bay	Ocean		Parr Canal	No	Restricted Public Access		N/A	0	N	N											Evaluation of possible rehabilitation of sewer	
2	2SSO10170	Active	Richmond City CS	Richmond City	899557	1.2	Certified	Mary Phelps	Water Resource Division Manager	07-FEB-25	18-FEB-25	18-FEB-25	Category 1 Spill	459 2nd Street	02/04/2025 15:38	02/04/2025 15:51	02/04/2025 15:35	02/04/2025 17:44	25-0590		Spill originated in basement of residence due to hydraulic overloading in city main. See attached photos	37.93795	-122.36789	Inside Building or Structure; Lateral Clean Out (Private)			1000	See attached photos	Y	Prior to crew arrival resident had pumped 100 gallons of overflow onto street and into stormwater conveyance, which was unrecoverable due to storm event. 	0	0	See attached photos	100	1100	Building or Structure; Drainage Conveyance System that discharges to surface water		Spill appeared in basement of residence at 459 2nd street. When crews arrived, they discovered that a sump pump had been deployed by resident resulting in approximately 100 gallons of water had been discharged to the street, curb, and stormwater conveyance. Due to the storm the discharge was unrecoverable. 	Y	37.93795	-122.36789							02/04/2025 16:14	Operator training, visual assessment, capacity of sump pump, and area calculation from basement.	Witness interview from resident, and visual observations.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Gravity Mainline; Upper Lateral		Polyvinyl Chloride (PVC); Vitrified Clay		50	majority of spill was contained in basement, collected and returned to sanitary sewer. 	Y	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Instructed resident to cease discharging to street, pump standing water from sewer, and dispatched a remediation company to mitigate the damages. 	Added Sewer to Preventive Maintenance Program		Hydraulic overload due to storm. Instructed resident to contact the city and to not connect pump to discharge to storm conveyance. 	N/A	02/04/2025 16:14	Hydraulic overload due to storm. 	N			SF Bay	Ocean; Slough		San Francisco Bay	N/A	Restricted Public Access		N/A	0	N	N												
9	9SSO10644	Active	4-S Ranch CS	Olivenhain Municipal Water District	899563	1.2	Certified	John Onkka	Water Reclamation Supervisor	10-FEB-25	06-MAR-25	06-MAR-25	Category 1 Spill	Firehouse Sewer Pump Station	02/06/2025 08:15	02/06/2025 08:20	02/06/2025 06:45	02/06/2025 10:13	25-0656		Spill occurred adjacent to the Firehouse Sewer Pump Station - via the pump station force main.	33.019156	-117.10875	Force Main			20200	The spill occurred directly outside of the Firehouse Pump Station. The spill then entered into an unnamed creek adjacent to the pumpstation.  	N				The 	18200	2000	Other (specify below); Paved Surface	The force main failure led first to a paved surface, down a hillside and then to an unnamed creek.	The spill destination was a creek. The creek was dry in some portions, it appears it did not travel far beyond the spill location (see attachment).	Y	33.019156	-117.10875							02/06/2025 08:30	The methodology was based on pump cycles from the pump station (via SCADA). An estimate was determined of what was flowing through the force main and what flow was siphoning out through the pipeline failure.	The start time was derived by analyzing the SCADA trends from the pump station and the end time was determined by operators shutting off pumps and containing the spill. 	Pipe Structural Problem/Failure - Installation		Force Main		Ductile Iron		36	The impact was in the immediate area of the spill at the pump station and the water flow towards and into the creek. There was no  sewer  debris associated with the spill.  Impact seemed to be minimal in the creek due to dry conditions in the creek bed. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned Portion of Spill to Sanitary Sewer System	The spill was immediately contained once the operators arrived onsite.  The captured spill was re-directed to pump station wet well containment area.	See above. Clean-up occurred at the pump station location. 	Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect	The District determined that not just the pipeline failure point should be replaced, but the whole section of 36 year ductile iron should be replaced with PVC, approximately 60+ feet of pipeline. 	See above. The full run of ductile iron was replaced and now the force main pipe is 100% PVC. 	See above. 	02/06/2025 08:30	See above. The 36 year old ductile showed signs of rust and pitting. A hole, roughly the size of a quarter, was found at the failure point. 	N			Unnamed Creek	Stream/Creek		Small creek adjacent to the pump station. Due to the dry conditions this winter in the San Diego region, the creek was not fully flowing. 	None observed. 	Other (specify below)	The creek bed in this area is dense with vegetation with no public access or trails in the vicinity.	San Diego Health Department and/or San Diego Beach and Bay Program	0	N	N												
2	2SSO10151	Active	Marin Csd 5 - Tiburon Plant CS	Marin Cnty Sanitary District 5	899564	1.1	Certified	Dan LaTorre	Maintenance Superintendent 		07-FEB-25	07-FEB-25	Monthly Category 3 Spill	322 San Rafael Ave	02/04/2025 09:30	02/04/2025 09:35	02/04/2025 09:25				Water exiting the contra costa clean out outside the residence.	37.87633	-122.46825	Inside Building or Structure; Lateral Clean Out (Private)	N/A	N/A	110	Most water collected outside residence at the Contra costa clean out as well as some water inside residence.	N						0	Building or Structure; Unpaved Surface	N/A	Most water collected outside residence at the Contra costa clean out as well as some water inside residence.	Y	37.87629	-122.46822							02/04/2025 09:59	Eyeball estimate based on the water that collected by the clean out as well as water found inside residence.	Based on conversation with the resident for start time, and when flow was restored for the end time.	Debris-General; Fats, Oil and Grease (FOG); Natural Disaster (specify below); Other (specify below)	Severe Storm Event / storm drain line illegally hooked up	Gravity Mainline; Manhole	N/A	Vitrified Clay	N/A	72	All water outside the residence absorbed into the dirt/gravel area. Water inside the residence was cleaned up mostly with some towels as well as a cleaning company for the carpet.	Y	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow	N/A	I received a call about a possible back up in the system to the above address. Once on scene I confirmed a problem with the system at which point I called for a Vactor truck. Within 10 minutes the Vactor truck arrived and set up down stream and cleared the blockage and restored flow at 0959 Hours. Area by the clean out was disinfected while the area inside the residence was cleaned by tenants as well as a cleaning company.	Adjusted Schedule/Method of Preventive Maintenance	N/A	Adjusting the scheduled maintenance intervals as well as looking at the illegal storm drain hook up that was found.		02/04/2025 12:50	Spill was caused by a multitude of things. Major storm event, illegal hook up, minor FOG and debris in system. This section was just cleaned in December of 2024.		Figure out where illegal storm drain hook up is coming from.	02/12/2025 10:00														N/A	Looking to remove illegal hook up that was found.	Adjust cleaning to twice a year	N/A	Inspected	N/A	On computer system	N/A	Figure out where illegal storm drain hook up is coming from.	
2	2SSO10172	Active	Ross Valley Sanitary District CS	Ross Valley SD	899565	1.2	Amended	Josh Hill	O&M Superintendent 	07-FEB-25	20-FEB-25	20-FEB-25	Category 1 Spill	115 Bon Air Center, Larkspur 	02/06/2025 15:46	02/06/2025 16:26	02/06/2025 15:01	02/06/2025 16:50	25-0673	19-FEB-25	The location of the spill/appearance point was approximately 180' ft downstream from the receiving district pump station 13. The location of the spill was in a service road/ paved parking area, behind the Bon Air shopping center in Greenbrae CA. 	37.94648	122.52622	Other (specify below)	Secondary force main.		113289	The spill was a result of a secondary force main break. The spill affected approximately a 50'x100' area surrounding the force main break appearance point. The affected area consisted of paved surface and a water tributary leading to tidal Corte Madera creek. A portion of spill was discharged directly into the nearby unnamed open channel water tributary approximately 25' from the force main break. 	Y	The unnamed water tributary is connected to an upstream underground storm  water conveyance system . The downstream water tributary is above ground, open channel and outfall is approximately a .25 mile before flowing into the tidal Corte Madera Creek. 			The spill discharge point was directly at the site of the secondary force main break. The secondary force main break was approximately 25' from the surface waters of the unnamed water tributary. 	87751	25538	Paved Surface; Surface Water; Unpaved Surface		The spill destinations included a paved parking lot, unpaved creek bank, and surface water into an unnamed water tributary which leads to Corte Madera creek. The approximate spread of the spill on the ground was a 50'x100' area. 	Y	37.9467	-122.52545							02/06/2025 16:33	See attachment  E .	PS14's pump discharge flow data was reviewed in SCADA and a sudden increase in PS14 discharge flow was noted at 3:01 PM.  This was due to the pipe suddenly failing and a rapid decrease in dynamic head, indicating the start of the spill.  The spill end time is based off staff reporting the closure of the secondary force main isolation valve at the S. Eliseo Dr. valve cluster which stopped all flow through the secondary force main.	Damage by Others Not Related to Collection System Construction/Maintenance; Other (specify below)	Piping structural failure due to deterioration caused by H2S corrosion and possible contributing factors of top loading from shipping container, concrete pad and concrete post base which were directly on top of the failure point. 	Other (specify below)	Secondary/bypass force main.	Other (specify below)	18  concrete cylinder pipe	60	The spill's impact was primarily to the nearby water tributary, approximately twenty-five feet from the force main break. The secondary impacted area was the surrounding parking lot area, where standing water collected in lower lying areas within the parking lot. There were no visual impacts observed at the receiving water way Corte Madera Creek.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Returned Portion of Spill to Sanitary Sewer System	Cleanup effort and mitigation effects detailed in 9.b. below.	Upon arrival, staff immediately recognized the secondary force main had ruptured and was daylighting in the parking lot of the Bon Air shopping center. Staff immediately worked to close the upstream isolation valve, effectively diverting flow into another force main, preventing additional flow into the ruptured force main. A nearby gravity main clean out within the effected spill area in the parking lot was opened, allowing a portion of the spill to enter back into the sewer system. Staff used a sewer combination truck to vacuum and recover as much standing sewer and sewer debris as possible. Staff then washed down all affected paved and unpaved surfaces, collecting all remnants of the spill. 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Plan Rehabilitation or Replacement of Sewer; Post Spill CCTV	Performed post spill CCTV inspection of the force main and first observation noted a high point in the force main at the failure point and severe corrosion extending 14' upstream and 13.5' downstream for a total of 27.5', presumably cause by trapped H2S.  CCTV noted discoloration 41.1' upstream 28.5' downstream for a total of 69.6'. This spot is a prime candidate for an automatic air release valve. 	This is a secondary force main and has been isolated from service.   Corrective action already completed includes excavation of the break in the force main, and assessment of the immediate damage.  Planned corrective actions include: Additional CCTV inspection of the of pipe. Evaluation of pipe structural integrity past the extents of the corrosion. Plans with Engineering to expedite a short-term repair and long-term replacement of the pipe through CIP depending on the integrity of the remaining secondary force main. 	CCTV of secondary force main to be completed by 2/20. Evaluation of secondary force main and recommendation of temporary repair 3/20. Replacement or repair through CIP to be determined.	02/06/2025 20:45	Initial investigation of the spill site revealed a couple of conditions that may have been contributing factors to the failure of the secondary force main. The most obvious factors were a shipping container placed on a reinforced concrete pad resting on top of a sign post incased in 2 feet of concrete resting directly on top of the secondary force main at the failure point.  Performed post spill CCTV inspection of the force main and first observation noted a high point in the force main at the failure point and severe corrosion extending 14' upstream and 13.5' downstream for a total of 27.5', presumably cause by trapped H2S.  CCTV noted discoloration 41.1' upstream 28.5' downstream for a total of 69.6'. 	Y	Excavation of the secondary force main at the point of failure also revealed a corroded section of concrete encased steel pipe. Further investigation is needed to evaluate the secondary force main past the corrosion affected area for short term repair options.	03/21/2025 15:00	Corta Madera Creek 	Stream/Creek		The spill entered into an unnamed open channel water tributary that runs along the back of the property. The tributary takes storm water out to the downstream creek, the Corte Madera Creek. 	There was no impact to aquatic life observed. 	Temporary Restricted Use		Ross Valley Sanitary District	5	N	Y	Water quality samples were taken at three locations which included the location of the spill, approximately 100' downstream of the spill and approximately 300' upstream of the spill. 	Samples were tested for Total coliform, fecal coliform bacteria, E-coli, and ammonia.  See attached sample reports.									Excavation of the secondary force main at the point of failure also revealed a corroded section of concrete encased steel pipe. Further investigation is needed to evaluate the secondary force main past the corrosion affected area for short term repair options.	
5S	5SSO10923	Active	Deer Creek CS	El Dorado Irrigation District	899569	1.2	Certified	John Chavers	Collection System Supervisor	07-FEB-25	14-FEB-25	14-FEB-25	Category 1 Spill	DC-2025-02-02	02/05/2025 08:36	02/05/2025 10:06	02/05/2025 08:36	02/05/2025 12:04	25-0625	14-FEB-25	See Attachment	38.65444	-120.9588	Force Main	See Attachment	See Attachment	2060	See Attachment	Y	See Attachments	0	2060	See Attachment	2060	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Surface Water; Unpaved Surface		See Attachments	Y	38.654602	-120.958367							02/05/2025 12:02	See Attachments	See Attachments	Pipe Structural Problem/Failure - Controls		Air Relief Valve (ARV)/ Blow-Off Valve (BOV); Force Main		Ductile Iron		15	See Attachments	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		See Attachments	Repaired Facilities or Replaced Defect		See Attachments	See Attachments	02/06/2025 09:07	See Attachments	N			Tributary to Deer Creek	Stream/Creek		See Attachments	None	Temporary Restricted Use		EID staff	1	N	N												
2	2SSO10219	Active	Yountville CS	Yountville, Town of	899570	1.3	Certified	John Ferons	Public Works Director	07-FEB-25	07-FEB-25	07-FEB-25	Category 1 Spill	LAND LANE 	02/04/2025 11:45	02/07/2025 12:00	02/07/2025 11:45	02/04/2025 14:10	25-0579		Spill started on land lane at manhole F-01 when the sewage pump station became inundated with inflow/infiltration. the same event caused spills at 3 other manholes on the same line leading into the sewage pump station and two manholes on another line into the pump station 	38.39864	-122.351756	Gravity Mainline; Manhole		 3 other manholes on the same F-line leading into the sewage pump station and two manholes on another line into the pump station (A-07 and M-02)	41465	F-01 Approximately 1516 gallons running off into Vineyard Access Rd, unrecoverable. M-02 Approximately 1449 gallons flowing into flooded street and flowing towards drainage ditch, recoverable. A-07 Approximately 1449 gallons flowing directly into drainage ditch, unrecoverable. F-02 Approximately 21,375 gallons flowing into vineyard access road, unrecoverable. BF-01. Approximately 14,250 gallons flowing into vineyard access road, unrecoverable. BF-02 Approximately 1,425gallons flowing into vineyard access road, unrecoverable.	N				M-02 Approximately 1449 gallons flowing into flooded street and flowing towards drainage ditch, unrecoverable. A-07 Approximately 1449 gallons flowing directly into drainage ditch, unrecoverable	2898	0	Surface Water		F-01 Approximately 1516 gallons running off into Vineyard Access Rd, unrecoverable. M-02 Approximately 1449 gallons flowing into flooded street and flowing towards drainage ditch, recoverable. A-07 Approximately 1449 gallons flowing directly into drainage ditch, unrecoverable. F-02 Approximately 21,375 gallons flowing into vineyard access road, unrecoverable. BF-01. Approximately 14,250 gallons flowing into vineyard access road, unrecoverable. BF-02 Approximately 1,425gallons flowing into vineyard access road, unrecoverable.	Y	38.39913	-122.35108	38.39783	-122.35272	38.39635	-122.35462	38.4033	-122.354	02/04/2025 08:15	Eyeball estimation confirmed with  sewer spill estimation guide  developed by the Orange County area waste discharge requirements steering committee. Spill end time data sourced from data acquisition records	Start time established via multiple trips down road and data acquisition records. End time sourced from data acquisition records	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Other (specify below)	Sewage pump station overloaded with inflow and infiltration	Polyvinyl Chloride (PVC); Vitrified Clay	 	55	No impact identified 	Y	Other Enforcement Agency Notified		Jetting truck was used to collect dispersed paper	Plan Rehabilitation or Replacement of Sewer		Developing master plan to assess pumping capacity restrictions of pump station. Ongoing efforts to rehab and replace sewer mains to reduce inflow and infiltration	slip-lining sewer mains affected in 2024	02/06/2025 08:30	Pump station at max capacity due to inflow and infiltration	N			beard ditch	Stream/Creek		creek	none	Other (specify below)		Public works staff	0	N	N												
2	2SSO10162	Active	Novato And Ignacio CS	Novato Sanitary District	899572	1.1	Certified	Jeff Andress	Collection Systems Superintendent		24-FEB-25	24-FEB-25	Monthly Category 3 Spill	3100 Topaz Dr. Novato, CA	02/04/2025 17:35	02/04/2025 17:35	02/04/2025 17:35				In a field located next to 3100 Topaz Dr., there are three manholes that come into our pump station. We had a power failure at our pump station. While setting up an emergency bypass pump, the crew noticed the manhole starting to gurgle. Then observed flow starting to come out of pick holes out of two manholes. 	38.1237	-122.52074	Manhole			256	Two manholes located outside of our Bahia Pump Station, The crew observed the start of the overflow as they were setting up an emergency bypass pump at the pump station due to a power failure during a rain event. These manholes were located in a grassy field next to the dirt road access to the station. 	N						10	Unpaved Surface		the spill ponded up around the manholes. 	Y	38.12364	-122.52069							02/04/2025 17:46	using photos taken by the crew, Using the Euyen, County sanitation district #1 table, the first manhole had two pick holes, one was discharging at an estimated height of 5 =6.1gpm, 2 =3.9gpm, and 3 = 4.7gpm for a time of 11 minutes for a total of 161.7 gallons. Manhole #2 had 2 = 3.9gpm and 3 = 4.7gpm for 11 minutes for a total of 94.6 gallons and a grand total of 256.3 gallons. 	The crew was on site as the spill began, documented it at 5:35pm until 5:46pm at which point the emergency bypass pump started pumping everything down. A total of 11 minutes were calculated. 	Pump Station Failure - Power		Pump Station - Power		Vitrified Clay		45	no visual impacts. 	Y	Cleaned Up (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		crew was onsite with a vacuum truck. once able to stop the overflow, they began to vacuum up the ponded spill and flushed the area. Signs were posted the following day. 	Plan Rehabilitation or Replacement of Sewer		Caused by power outage. 4  pump set up. 		02/04/2025 18:25	none. 		none. 	02/04/2025 18:55														none	stage a pump in case power goes out again during a storm. 	none needed. 	none. 	none. 	none. 	none	cleaned up what was still above the ground with a vac truck. flushed the area, posted signs. 	none. 	
5S	5SSO11433	Active	City of Stockton MUD CS	Stockton City MUD	899573	1.4	Certified	Dagmara Saini	Program Manager III	08-FEB-25	24-APR-25	24-APR-25	Category 1 Spill	1540 Lincoln St.	02/07/2025 12:50	02/07/2025 13:00	02/06/2025 21:00	02/07/2025 15:25	25-0695		1540 Lincoln St. Stockton, Ca 95204	37.96736	-121.30148	Manhole			8900	See attachment	Y	See attachment	0	0	Yosemite Lake/Smith Canal	8900	0	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water		Manhole overflowed into street, entered stormwater catch basin and flowed to stormwater pump station at American Legion Park. Partial discharge into Yosemite Lake/Smiths Canal before storm station pumps were turned off.	N									02/07/2025 13:50	Overflow rate from manhole = 10 gpm. Total overflow time = 890 minutes.	Spill start time - eye witness at spill location. Spill end time - City crews cleared grease blockage and restored flow to main line.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		100	Surface area (street/gutter) and receiving water (Yosemite Lake) - no impacts observed.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Surface area (street and gutter) cleaned. Spill partially contained in storm water system - pumped and flushed into sanitary sewer system.	Spill partially contained at storm water pump station. Pumps turned off. Storm station and collection system contents pumped and flushed into sanitary sewer system. Surface area (street and gutter) cleaned. 	Inspected Sewer Using CCTV to Determine Cause		Inspected main line via CCTV. Scheduled main line repairs to be done by contractor.	Post repair, continue to CCTV remainder of main line.	02/08/2025 15:30	Grease deposition in main sewer line.	N			Yosemite Lake and Smiths Canal	Lake; Slough		Yosemite Lake flows west to Smiths Canal an then to San Joaquin River.	None observed.	Other (specify below)	Public warning signs and door hangers posted.	N/A	0	N	Y	Yosemite Lake - outfall and downstream.	e. Coli										
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	899574	1.2	Certified	Gerald Watson	Sanitation Wastewater Manager III		11-MAR-25	11-MAR-25	Monthly Category 3 Spill	2501 North Creston Drive	02/08/2025 02:02	02/08/2025 03:44	02/08/2025 02:02				The initial crew arrived at 3:44 A.M. and discovered an 6-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Spill coming from maintenance hole at Creston Drive and Quebec Drive.	34.11429	-118.324789	Manhole			162	See attached	N						162	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	It was estimated that approximately 162 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.  	Y	34.11429	-118.324789							02/08/2025 03:55	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation	SPILL FLOWRATE AND VOLUME DETERMINATION BASED ON FLOWOUT PICKHOLE OR OPENING  DIAMETER OF PICKHOLE OR OPENING 0.75 INCHES HEIGHT OF WATER OUT OF PICKHOLE/OPENING 0.125 INCHES FLOWRATE PER PICKOLE/OPENING (GPM) 1 GPM # OF PICKHOLES/OPENINGS 2 TOTAL FLOWRATE (GPM) 1G PM DURATION OF SPILL (MINUTES) 113 MINUTES TOTAL FLOW (GALLONS) 162 GALLONS	Root Intrusion		Gravity Mainline		Concrete		99	On Saturday, February 8, 2025 at 2:02 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 2501 North Creston Drive (TG 593-F2). A CWCD crew was immediately dispatched to the incident location and determined that the 6-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 3:55 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 162 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.    The Los Angeles County Department of Public Health was notified and determined that the overflow did not necessitate any beach closures. The sewer location where the backup occurred will be televised to determine the exact cause and to determine t	N	Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		On Saturday, February 8, 2025 at 2:02 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 2501 North Creston Drive (TG 593-F2). A CWCD crew was immediately dispatched to the incident location and determined that the 6-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 3:55 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 162 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.   	Post Spill CCTV		As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.		02/08/2025 03:55	On Saturday, February 8, 2025 at 2:02 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 2501 North Creston Drive (TG 593-F2). A CWCD crew was immediately dispatched to the incident location and determined that the 6-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 3:55 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.		None at this time	02/08/2025 03:55														None at this time	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.		None at this time	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	None at this time		On Monday, February 10, 2025 7:45 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 5801 West Wilshire Boulevard (TG 633-B2). A CWCD crew was immediately dispatched to the incident location and determined that 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 8:56 AM. The cause of the blockage was attributed to an object in the line. All necessary clean-up was then performed.  As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	None at this time	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	899576	1.1	Certified	David Leamer	Assistant Superintendent		28-FEB-25	28-FEB-25	Monthly Category 3 Spill	353853	01/02/2025 14:04	01/02/2025 14:36	01/02/2025 14:00				See Attached Spill map with Photos.	38.56567	-121.32547	Lateral Clean Out (Public); Manhole		SacSewer Manhole and 4 SacSewer Cleanouts	126	See Attached Spill Map with Photos	Y	See Attached Spill map with Photos.	103				118	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		See attached Spill Map with Photos.	Y	38.56579	-121.32553	38.56579	-121.32564	38.56549	-121.32683			01/02/2025 14:36	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		64	No observed impact of spill. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		See Attached Description of Spill Event	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		SacSewer inspected mainline with CCTV on 1/6/25. Based on findings, SacSewer added a preventative cleaning frequency of 48 months.		01/02/2025 14:36	SacSewer crews broke stoppage of grease and fully cleaned line. Did CCTV inspection and mitigated all spill effects.		None	01/02/2025 14:36														N/A	SacSewer added a preventative cleaning frequency of 48 months.	SacSewer added a preventative cleaning frequency of 48 months.	N/A	SacSewer inspected mainline with CCTV on 1/6/25.	None	SacSewer added a preventive maintenance frequency of 48 months on 1/7/25.	N/A	None	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	899577	1.2	Certified	Gerald Watson	Sanitation Wastewater Manager III		11-MAR-25	11-MAR-25	Monthly Category 3 Spill	2105 West Bellevue Avenue	02/09/2025 11:08	02/09/2025 11:31	02/09/2025 11:08				The initial crew arrived at 11:31 AM, and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Sewage coming out of a maintenance hole located at Bellevue Avenue and Bellevue Alley.	34.073042	-118.266788	Manhole			362	see attached	Y	Sewage entered a City of Los Angeles catch basin located at 2106 West Bellevue Avenue	331				362	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	It was estimated that approximately 362 gallons of sewage backed out of the sewer system as a result of the blockage, of that amount, 331 gallons of sewage entered a City of Los Angeles owned catch basin located at 2106 West Bellevue Avenue. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.  	Y	34.073042	-118.266788	34.0729897	-118.266783	34.070651	-118.267821			02/09/2025 12:11	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation and dimensional analysis.  	SPILL FLOWRATE AND VOLUME DETERMINATION BASED ON FLOWOUT PICKHOLE OR OPENING  DIAMETER OF PICKHOLE OR OPENING 0.75 INCHES HEIGHT OF WATER OUT OF PICKHOLE/OPENING 2 INCHES FLOWRATE PER PICKOLE/OPENING (GPM) 3 GPM # OF PICKHOLES/OPENINGS 2 TOTAL FLOWRATE (GPM) 6 GPM DURATION OF SPILL (MINUTES) 63 MINUTES TOTAL FLOW (GALLONS) 362 GALLONS  VOLUME CONTAINED ON STREET  LENGTH 40 FEET WIDTH 20 FEET DEPTH 0.0625  3.25  0.0052 FEET VOLUME 4.17 FT3  31 GALLONS	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		114	On Sunday, February 9, 2025 at 11:08 AM, the Clean Water Conveyance Division (CWCD) received a report of a Maintenance Hole overflowing at 21051 West Bellevue Avenue (TG 634-D1). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 12:11 PM. The cause of the blockage was attributed to Fats, Oil, and Grease (FOG). All necessary clean-up was then performed.  It was estimated that approximately 362 gallons of sewage backed out of the sewer system as a result of the blockage, of that amount, 331 gallons of sewage entered a City of Los Angeles owned catch basin located at 2106 West Bellevue Avenue. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.    The Los Angeles County Department of Public Health was notified and determined that the overflow did 	N	Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		On Sunday, February 9, 2025 at 11:08 AM, the Clean Water Conveyance Division (CWCD) received a report of a Maintenance Hole overflowing at 21051 West Bellevue Avenue (TG 634-D1). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 12:11 PM. The cause of the blockage was attributed to Fats, Oil, and Grease (FOG). All necessary clean-up was then performed.	Adjusted Schedule/Method of Preventive Maintenance; Post Spill CCTV		As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.		02/09/2025 12:11	On Sunday, February 9, 2025 at 11:08 AM, the Clean Water Conveyance Division (CWCD) received a report of a Maintenance Hole overflowing at 21051 West Bellevue Avenue (TG 634-D1). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 12:11 PM. The cause of the blockage was attributed to Fats, Oil, and Grease (FOG). All necessary clean-up was then performed.		Not At This Time.	02/09/2025 12:11														None at this time	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	None at this time	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	None at this time		As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	Not At This Time.	
9	9SSO10660	Active	City of Vista CS	Vista City (aka City of Vista)	899583	1.2	Certified	Kenneth Knatz Jr.	Sewer Engineering Manager		26-FEB-25	26-FEB-25	Monthly Category 3 Spill	3555 Winslow Rd	01/29/2025 10:00	02/10/2025 10:00	01/29/2025 10:00				33.180930, -117.268826 Unpaved surface, natural ditch. Unpaved ditch near storm inlet. Spill caused by corroded pipe that was damaged by high pressure jet. 	33.18094	-117.26927	Gravity Mainline		None	400	Photos in attachments document capture of sewer and pipe repair. 	Y	Natural water drainage channel. 	325				325	Drainage Conveyance System; Unpaved Surface		33.180930, -117.268826. Discharge didn't travel. 	Y	33.18096	-117.26887	33.18091	-117.26886					01/29/2025 13:00	Utilized our best practices for sanitary sewer overflow calculations. Observed rate of flow and duration.	Staff is required to take annual Volume estimation training.  Infiltration loss estimated based on recovery volume from Vactor. 	Pipe Structural Problem/Failure - Controls		Gravity Mainline		Ductile Iron		38	None.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Immediate containment in conveyance system. Used sandbags to prevent spill from entering storm drain. 	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV; Repaired Facilities or Replaced Defect		Gravity main segment of damaged pipe replaced and was lined 2/11/2025.		01/29/2025 17:00	During routine cleaning of the gravity mainline the high-pressure nozzle penetrated corroded pipe which caused failure of pipe wall and resulted in sewer spilling from punctures.  		No. 	01/29/2025 12:00														None. 	Prioritization of Ductile Iron Pipe in systemwide CIPP rehabilitation program. 	None. 	Yes. Pipe CIPP lining completed with on-call contractor in collaboration with Engineering. 	Pipe section replaced. Inspected once completed and restored flow. 	Stabilized pipe segment with concrete apron to prevent elemental damages to pipe. 	No operations and maintenance modifications required.   Attachment shows repaired pipe segment.	None. 	No. 	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	899587	1.1	Certified	David Leamer	Assistant Superintendent		28-FEB-25	28-FEB-25	Monthly Category 3 Spill	354532	01/15/2025 10:35	01/15/2025 10:54	01/15/2025 09:00				See Attached Spill map with Photos.	38.49903	-121.44431	Lateral Clean Out (Public)			266	See Attached Spill Map with Photos	Y	See Attached Spill map with Photos.	258				264	Drainage Conveyance System; Paved Surface; Unpaved Surface		See attached Spill Map with Photos.	Y	38.49898	-121.44469	38.49801	-121.44744					01/15/2025 10:54	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Debris-General		Gravity Mainline		Vitrified Clay		65	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		See Attached Description of Spill Event	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		SacSewer inspected mainline with CCTV on 2/3/25. Based on findings, SacSewer to CCTV in 12 months to evaluate PM program/frequency.		01/15/2025 15:40	A stoppage in the main line caused a SacSewer cleanout to spill. The SacSewer cleanout spilled to the landscape, to the sidewalk, to the curb and gutter, to a storm drain inlet at 5245 Galaxy Pkwy, entering the drainage conveyance system. SacSewer crews used a hydro-vacuum truck to clean all above ground surfaces affected by the spill. Crews hydro-cleaned the affected drainage conveyance system from the DI at 5245 Galaxy Pkwy to the SDMH at 5230 Galaxy Pkwy. Crews introduced water through the drain inlet at 5230 Galaxy Parkway to flush the remaining drainage conveyance system. Crews pumped rinse water and remaining spill out from the Drainage Sump until no trace of sewage was found in the sump water.  SacSewer fully recovered the spill that entered the drainage conveyance system and returned to the sewer system through the sewer manhole 302-158-1024 at the southwest side of 7044 Uranus Parkway (adjacent to the Highway 99 sound wall).		None	01/15/2025 15:40														N/A	SacSewer to CCTV in 12 months to evaluate PM program/frequency.	SacSewer to CCTV in 12 months to evaluate PM program/frequency.	N/A	SacSewer inspected mainline with CCTV on 2/3/25.	N/A	SacSewer to CCTV in 12 months from 2/4/25 to evaluate PM program/frequency.	N/A	None	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	899604	1.2	Certified	Gerald Watson	Sanitation Wastewater Manager III	12-FEB-25	12-FEB-25	12-FEB-25	Category 2 Spill	5801 West Wilshire Boulevard	02/10/2025 07:45	02/10/2025 08:43	02/10/2025 07:45	02/11/2025 07:20	25-0743		The initial crew arrived at 8:43 A.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Spill coming out of a maintenance hole located at Wilshire Boulevard and Ogden Drive.	34.062871	-118.359248	Manhole			1616	see attached	N						1616	Paved Surface; Street/Curb and Gutter (2 3)		34.062871   118.359248	Y	34.062871	118.359248							02/10/2025 08:56	Volume of a spill contained in a rectangular area Length48feet Width9feet Depth6inches0.5000feet  216.00ft31,616gallons 	Volume of a spill contained in a rectangular area Length48feet Width9feet Depth6inches0.5000feet  216.00ft31,616gallons 	Other (specify below)	object in the line	Gravity Mainline		Vitrified Clay		57	On Monday, February 10, 2025 at 7:45 AM, LA Sanitation and Environment�s (LASAN) Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 5801 West Wilshire Boulevard, (TG 633-B2). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 8:56 AM. The cause of the blockage in the sewer line was attributed to an object in the line. All necessary clean-up was then performed.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		On Monday, February 10, 2025 at 7:45 AM, LA Sanitation and Environment�s (LASAN) Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 5801 West Wilshire Boulevard, (TG 633-B2). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 8:56 AM. The cause of the blockage in the sewer line was attributed to an object in the line. All necessary clean-up was then performed.	Adjusted Schedule/Method of Preventive Maintenance; Post Spill CCTV		As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	None At This Time.	02/10/2025 08:56	A CWCD crew arrived at the incident location and determined that the 8-inch main line sewer serving the referenced area was spilling due to a blockage, which appears to have been caused by an object in the sewer.	N	None At This Time.	02/10/2025 08:56										N												None At This Time.	
2	2SSO10159	Active	Napa Sd CS	Napa Sanitation District	899620	1.4	Certified	Seth Rossi	Collection System Manager	12-FEB-25	12-FEB-25	12-FEB-25	Category 1 Spill	898 Pueblo Ave Napa CA 94558, Manhole Q59-028	02/04/2025 16:40	02/04/2025 16:50	02/04/2025 16:40	02/04/2025 17:00	25-0597		Spill originated out of a Manhole at the intersection of Crocker St and Pueblo Ave in Napa CA.	38.3168	-122.29154	Manhole		N/A	7200	Spill was overflowing out of Manhole and discharging into the closest drain inlet flowing the Strom Drainage System. 	Y	Spill flowed into a drain inlet approximately 50ft east of the manhole where the spill originated. The drain inlet is tied to City Storm Drain System that flows to the Napa River.  	0	7200	Spill entered a drain inlet catch basin, approximately 50ft east of Manhole origin point. 	7200	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		Spill originated out of a Manhole at the intersection of Crocker St and Pueblo Ave in Napa CA. The spill ran approximately 50ft east into a drain inlet catch basin and flowed through the City Storm Drain System to the Napa River. 	Y	38.3168	-122.29154							02/04/2025 20:35	Spill volume was estimated using the SSCSC Manhole Overflow Guage. The Gallons per minute were determined to be 30gpm and the start time was based off when the crew was notified, and the finish time was based on when the crew witnessed it stop. 	Crew relied on Customer notification and onsite visuals to determine start and stop time. 	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Gravity Mainline; Manhole		Other (specify below)	Cured in Place Pipe. 	5	Total spill was estimated to be approximately 7200 gallons. 	Y	Mitigated Effects of Spill (specify below); Returned Portion of Spill to Sanitary Sewer System	Napa Sanitation crew Vacuumed Manhole and prevented an additional 8500 gallons from overflowing. 	Napa Sanitation crew Vacuumed Manhole and prevented an additional 8500 gallons from overflowing. Crew returned next day to sanitize effected area. 	Post Spill CCTV		Manhole will be added to potential bypass location list. 	Mainline segment has already been rehabbed.  	02/04/2025 20:35	Investigation determined rainfall exceeded systems capacity.	N			Napa River	River		The Napa River runs through the Napa Valley and discharges to the San Pablo Bay.	Unaffected. 	Other (specify below)	Public access not impacted. 	N/A	0	Y	N												
2	2SSO10159	Active	Napa Sd CS	Napa Sanitation District	899621	1.3	Certified	Seth Rossi	Collection System Manager	12-FEB-25	12-FEB-25	12-FEB-25	Category 1 Spill	3740 Hamilton St Napa CA 94558 	02/04/2025 17:05	02/04/2025 17:15	02/04/2025 17:05	02/04/2025 19:15	25-0596		Spill originated out of a Napa Sanitation Owned Clean Out, and ran down the curb/gutter to the closest drain inlet. 	38.33009	-122.30715	Lateral Clean Out (Public)		N/A	910	Spill originated out of a Napa Sanitation Owned Clean Out, and ran down the curb/gutter to the closest drain inlet. It then flowed through the City Storm Drain System to the Napa River. 	Y	Spill made its way to through the City Storm Drain System to the Napa River. 	0	910	The spill ran to a drain inlet catch basin approximately 40-50ft south of origin point.	910	0	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		The spill originated from the public clean out at 3740 Hamilton and ran approximately 40-50ft south to the closet drain inlet catch basin. 	Y	38.33009	-122.30715							02/04/2025 19:15	Spill volume was calculated using visual estimations along with customer notification and total duration of spill.  	Spill start time was based on when the customer notified Napa Sanitation crew, and end time was based on when the crew actually saw it stop.  	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Lower Lateral; Other (specify below)	Public Clean Out.	Other (specify below)	Asbestos Concrete Pipe. 	70	Spill was estimated to be approximately 910 gallons. 	Y	Cleaned Up (specify below)	Napa Sanitation crews returned next day to sanitize effected area.  	Napa Sanitation Crews monitored flows to calculate total spill then returned next day to sanitize effected area. 	Post Spill CCTV		Lateral will be added to a watch list for future storms. 	N/A	02/05/2025 12:00	The determined cause of spill was that the rainfall exceeded system capacity. 	N			The Napa River	River		The Napa River flows through the Napa Valley to the San Pablo Bay	Unaffected. 	Other (specify below)	Public access not impacted. 	N/A	0	Y	N												
2	2SSO10159	Active	Napa Sd CS	Napa Sanitation District	899629	1.3	Certified	Seth Rossi	Collection System Manager	12-FEB-25	12-FEB-25	12-FEB-25	Category 1 Spill	51 Morgan Ln Napa CA 	02/04/2025 17:05	02/04/2025 17:25	02/04/2025 15:40	02/04/2025 18:50	25-0599		Spill originated from an end of line clean out in front of 51 Morgan Ln and pooled around it. There is no storm drain or drain inlet on that street but due to size of overflow and heavy rains it is assumed that spill reached a nearby Storm Drain. 	30.30888	-122.31474	Other (specify below)	End of mainline clean out. 	N/A	1520	Spill originated out of end of mainline clean out and mostly pooled around it. Potentially made its way to surface water due to size of spill and heavy rains. 	Y	Spill potentially made its way to nearby storm drains due to size and heavy rains. 	0	1520	Spill potentially made its way to nearby storm drains. 	1520	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		Spill potentially made its way to the closest drain inlet catch basin flowing through the City Storm Drain System and to the Napa River. 	Y	30.30888	-122.31474	38.30776	-122.31506					02/04/2025 18:50	Spill estimations were calculated based on start and stop time of spill and visual observations. 	Spill start time was based on customer notifications and the end time was based on when the crew actually saw it stop. 	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Gravity Mainline; Other (specify below)	End of mainline clean out. 	Vitrified Clay		70	Spill was estimated to be approximately 1520 gallons. 	Y	Mitigated Effects of Spill (specify below); Other (specify below)	Napa Sanitation crew vacuumed from downstream manhole and prevented an additional 7,000 gallons from overflowing. 	Napa Sanitation crew vacuumed from downstream manhole and prevented an additional 7,000 gallons from overflowing. Crew also returned next day to sanitize effected area. 	Post Spill CCTV		Clean out will be added to an overflow watch list. 	N/A	02/05/2025 12:00	Investigation determined rainfall exceeded systems design. 	N			The Napa River	River		The Napa River flows through the Napa Valley to the San Pablo Bay. 	Unaffected. 	Other (specify below)	Public Access unaffected. 	N/A	0	Y	N												
5S	5SSO11061	Active	Sutter Creek CS	Sutter Creek City	899632	1.2	Certified	Dan R Lafontaine	Public Works Director		11-FEB-25	11-FEB-25	Monthly Category 3 Spill	Spanish and Amelia	02/11/2025 08:23	02/11/2025 09:30	02/11/2025 07:15				Spill showed itself coming out of the utility box (water box used for sewer in this part of town).  Box is on the corner of Spanish and Amelia.  Location is around 205 Spanish Street.	38.39595	-120.80734	Manhole; Other (specify below)	Sewer was coming out of manhole (manhole is a water utility box at this location)		100	Sewer was running out into the gutter but was stopped about 8 feet downstream.  Estimated volume based on area of spill and time to stop flowrate.	N						100	Street/Curb and Gutter (2 3)		Spill went about 8 feet downstream and was captured with spill containment material.	N									02/11/2025 10:15	Spill went down 8 feet down drainage curb gutter on side of road.  Spill proceeded for few hours.  Flow out of manhole was small estimated at 0.5 GPM (@3 hours estimated to 100 gallons)	Crew drives that road at 7am and nothing was reported so spill happened in between 7am and when operators were notified.   End time occurred when blockage was cleared so exact time known.	Root Intrusion		Gravity Mainline		Polyvinyl Chloride (PVC)		75	Sewer made its way to the curb and gutter.  No impact to City or surroundings after cleanup.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		Used jetter to clear roots and or clog in main line.	Added Sewer to Preventive Maintenance Program		Add to spill preventative list and CIP 		02/11/2025 13:49	Roots in line will clean line more often but not in budget to replace.		None	02/11/2025 14:13														None	None	Added to list of preventative maintenance.	Eventually but not high on list of pipes to be replaced.	None	Added to capital improvement list but other lines are more pressing needs/	None	None	None	
8	8SSO10643	Active	Yucaipa Valley Water Dist CS	Yucaipa Valley Water District	899636	1.4	Certified	John Wrobel	Public Works Manager	11-FEB-25	18-FEB-25	18-FEB-25	Category 2 Spill	Oak Glen Rd Trail, Yucaipa, CA 92399	02/11/2025 11:35	02/11/2025 11:36	02/11/2025 11:35	02/11/2025 14:32	25-0754		34.047625, -117.052091 On Oak Glen Rd Trail in Yucaipa, CA 92399, we discovered a manhole discharging approximately 123 GPM of sewage. After restoring the flow, we observed a large rock and a 2x10 wooden board at the bottom of the discharging manhole. 	34.047625	-117.052091	Manhole			3123	It ran 300 feet down a dirt road.	N						0	Unpaved Surface		34.047625, -117.052091 On Oak Glen Rd Trail in Yucaipa, CA 92399, we discovered a manhole discharging approximately 123 GPM of sewage. After restoring the flow, we observed a large rock and a 2x10 wooden board at the bottom of the discharging manhole.	Y	34.047625	-117.052091							02/11/2025 11:35	Based on how much flow was leaking out of the close manhole.	From when we got the call to when we restored the flow.	Vandalism (specify below)	Someone put large rocks and lumber in the manhole.	Manhole		Vitrified Clay		45	Ran down a dirt road for 300 feet.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow		Cleaned mainline, removed rocks and lumber from manhole. Then we cleaned the road of anything that could have come from the sewer system. The next day we cleaned a mile of sewer and CCTVed it too.	Other (specify below)	Bolted manhole down.	Bolted manhole down so pipe can't throw things in it.	02/11/2025	02/11/2025 14:32	Found thing that where too big to fit down the sewer. So, we knew someone had to have opened the manhole and put things in it.	N												N													
2	2SSO10159	Active	Napa Sd CS	Napa Sanitation District	899652	1.4	Certified	Seth Rossi	Collection System Manager	12-FEB-25	12-FEB-25	12-FEB-25	Category 1 Spill	3972 Raleigh St Napa CA 94558 Manhole #N57-043	02/04/2025 16:09	02/04/2025 16:09	02/04/2025 16:09	02/04/2025 17:00	25-0594		Spill originated from a Manhole in front of 3972 Raleigh St Napa CA. The spill escaped the Manhole ran down the curb and gutter to the nearest drain inlet. 	38.32894	-122.31945	Manhole		N/A	1504	Spill ran from Manhole in front of 3972 Raleigh to drain inlet catch basin approximately 50ft south of the manhole. It then went into the City Storm Drain System and to The Napa River. 	Y	Spill reached drain inlet catch basin that joins the City Storm Drain System that runs to The Napa River.	0	1504	Spill reached drain inlet catch basin that joins the City Storm Drain System that runs to The Napa River.	1504	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		Spill originated out of a Manhole in front of 3972 Raleigh St and ran approximately 50ft south into a drain inlet catch basin which flows to the City Storm Drain System and to The Napa River. 	Y	38.32894	-122.31945	38.32881	-122.31938					02/04/2025 19:17	Using the SSCSC Manhole Overflow Gauge an average of 8gpm was estimated and combined with the start and stop times for a total calculation. 	The start time was determined based on the visual observations of the Napa Sanitation crew who discovered the overflow. The stop time was also based on the crew's visual observations.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Gravity Mainline; Manhole		Other (specify below)	Cured In Place Pipe.	3	Spill originated out of a Manhole in front of 3972 Raleigh St and ran approximately 50ft south into a drain inlet catch basin which flows to the City Storm Drain System and to The Napa River. Total volume was calculated to be 1504 gallons.	Y	Mitigated Effects of Spill (specify below)		Napa Sanitation crew Vacuumed out of overflowing Manhole and prevented an additional 14,000 gallons from escaping the system. 	Post Spill CCTV		Napa Sanitation crews returned next day to sanitize area. 	N/A pipe has already been rehabbed. 	02/05/2025 12:00	Cause of spill was determined to be from excess rainfall exceeding system's design. 	N			The Napa River	River		The Napa River flows through the Napa Valley and out to the San Pablo Bay. 	Unaffected. 	Other (specify below)	Public access not impacted. 	N/A	0	Y	N												
2	2SSO10164	Active	Palo Alto Regional CS	Palo Alto City	899653	1.1	Certified	Anthony Meneses	WGW Operations Manager		27-FEB-25	27-FEB-25	Monthly Category 3 Spill	4133 Park Boulevard, Palo Alto	01/29/2025 22:20	01/29/2025 23:38	01/29/2025 20:38				See attachment	37.415396	-122.121022	Manhole			60	See attachments	Y	See attachments	30				45	Street/Curb and Gutter (2 3)		See attachment										01/30/2025 02:42	See attachment 	See attachment 	Debris-General; Debris-Rags; Other (specify below); Root Intrusion	Plumber left a lateral plug in lateral which traveled into the main and caused a blockage	Gravity Mainline		Other (specify below)	PE	5	The sewage spilled into the street curb, gutter, and into the storm drain. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Used absorbent and hauled away 	Other (specify below)	No action required	No action required. Spill was caused by contractor's lateral plug. 		01/30/2025 02:42	Spill was caused by contractor's lateral plug. 		NA	01/30/2025 02:42														NA	No action required	No action required	No action required	No action required	No action required	No action required	No action required	NA	
2	2SSO10159	Active	Napa Sd CS	Napa Sanitation District	899655	1.4	Certified	Seth Rossi	Collection System Manager	12-FEB-25	12-FEB-25	12-FEB-25	Category 1 Spill	Intersection of Brown St/Yount St Napa CA 94559 Manhole# Q61-012	02/04/2025 16:05	02/04/2025 16:05	02/04/2025 16:05	02/04/2025 17:00	25-0593		Spill originated out of a Manhole in the Northeast corner of Brown St and Yount St intersection and ran to the nearest drain inlet catch basin approximately 30ft to the North. 	30.30366	-122.29034	Manhole		N/A	14800	Spill originated out of a Manhole in the Northeast corner of Brown St and Yount St intersection and ran to the nearest drain inlet catch basin approximately 30ft to the North. The drain inlet connects to the City Storm Drain System and runs to the Napa River. 	Y	The spill made it to a drain inlet catch basin that connects to the City Storm Drain System and leads to the Napa River. 	0	14800	The spill made it to a drain inlet catch basin that connects to the City Storm Drain System and leads to the Napa River. 	14800	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		Spill originated out of a Manole in the Northeast corner of the intersection at Brown St & Yount St. It traveled approximately 30ft North to a drain inlet catch basin where it flowed through the City Strom Drain System to the Napa River. 	Y	38.30366	-122.29034	38.30368	-122.29035					02/04/2025 19:10	Using the SSCSC Manhole Overflow Gauge an estimated 80gpm was determined and combined with the start and stop time for total volume calculations.  	The spill start time was determined by the Napa Sanitation crew from when they discovered the spill, and the stop time was when they visually observed it stop. 	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Gravity Mainline; Manhole		Other (specify below)	HDPE	2	Spill originated out of a Manole in the Northeast corner of the intersection at Brown St & Yount St. It traveled approximately 30ft North to a drain inlet catch basin where it flowed through the City Strom Drain System to the Napa River. The total spill volume was 14,800 gallons.	Y	Mitigated Effects of Spill (specify below)		Napa Sanitation crews vacuumed out of the overflowing manhole preventing an additional 9,000 gallons from escaping the system. 	Post Spill CCTV		Napa Sanitation crew returned next day to sanitize area. 	N/A system in that area has already been rehabbed. 	02/05/2025 12:00	Cause of spill was determined to be from rainfall exceeding system's design. 	N			The Napa River	River		The Napa River flows through the Napa Valley and out to the San Pablo Bay.	Unaffected. 	Other (specify below)	Public Access not affected. 	N/A	0	Y	N												
4	4SSO11365	Active	Unincorporated County Area CSMD South/County Sanitation District CS	Los Angeles Cnty DPW	899656	1.2	Certified	May Hong	Civil Engineer	20-FEB-25	21-FEB-25	21-FEB-25	Category 1 Spill	2262-0194 (17250 Colima Road, Rowland Heights, CA) Unincorporated South	02/09/2025 14:06	02/09/2025 15:20	02/09/2025 12:44	02/09/2025 15:51	25-0720		CSMD Map Sheet No. 2262 Manhole No. 194 MMS No. 9215805B Manhole No. 194 was overflowing.	33.98569	-117.92758	Manhole			7750	Sewage discharged from Manhole No. 194 into street, Peter F Schabarum Regional County Park, storm drain (150 feet north of Manhole No. 192), and into the creek west of Restroom #2. 	Y	Storm drain (150 feet north of Manhole No. 192), and into the creek west of Restroom #2 at Peter F Schabarum Regional County Park, which leads to San Jose Creek - Thompson Crk to U/S San Gabriel River.  	0	3750	Storm drain (150 feet north of Manhole No. 192), and into the creek west of Restroom #2 at Peter F Schabarum Regional County Park, which leads to San Jose Creek - Thompson Crk to U/S San Gabriel River.  	3750	250	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Unpaved Surface		Sewage discharged from Manhole No. 194 into street, Peter F Schabarum Regional County Park, storm drain (150 feet north of Manhole No. 192), and into the creek west of Restroom #2, which leads to San Jose Creek - Thompson Crk to U/S San Gabriel River.  	N									02/09/2025 15:55	CWEA SSCSC Manhole Gauge	The start time is obtained from the reporting party, and the end time is determined when the crew clears the obstruction, and the overflow stops. 	Debris-Rags; Root Intrusion		Gravity Mainline		Vitrified Clay		47	N/A 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow		Set up absorbent socks and contained the sewer spill using a vactor truck. Hydro jet equipment was used to break down the heavy root, medium rag, and scale stoppage in the mainline. Once all sewage was vacuumed up, the affected area was washed down. All required agencies were notified. 	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Inspected sewer using CCTV and added sewer to Preventive Maintenance Program.	90 Day Rodder Periodic	02/09/2025 18:30	Roots	N			San Jose Creek - Thompson Crk to U/S San Gabriel River, San Gabriel River 	River; Stream/Creek		San Jose Creek - Thompson Creek to U/S San Gabriel River	No impacts. 	Other (specify below)	No impact. 	N/A	0	N	N												
2	2SSO10183	Active	San Mateo CIty CS	San Mateo City	899677	1.0	Work In Progress						Monthly Category 3 Spill	638 Tilton Ave	02/12/2025 08:00	02/12/2025 08:10	02/12/2025 07:45					37.57122	-122.32363	Manhole			920	overflow at sewer manhole	N						920	Street/Curb and Gutter (2 3)		sewer spill out of manhole onto paved surface and gutter	Y	37.56985	-122.32592							02/12/2025 08:25	San Diego method	San Diego method	Fats, Oil and Grease (FOG)		Gravity Mainline		Polyvinyl Chloride (PVC)		106	spilled onto paved surface and gutter only	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		pictures/video restore flow vacuum/wash down disinfect	Adjusted Schedule/Method of Preventive Maintenance																															
2	2SSO10665	Active	Westborough CS	Westborough Water District	899678	1.1	Certified	Patricia Mairena	General Manager		13-FEB-25	13-FEB-25	Monthly Category 3 Spill	24 Vista Court, South San Francisco, CA	01/14/2025 08:55	01/14/2025 09:24	01/14/2025 08:55				Spill was coming out of manhole 46 and running down the street curb/gutter to catch basin.	37.64024	-122.44626	Manhole			266	Low flow coming out of manhole pick hole.	Y	The drainage conveyance system was used as a holding tank.  No water reached the conveyance system to surface water.	266				266	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Spill was mostly Street/Curb and Gutter.	Y	37.64084	-122.44659							01/14/2025 09:54	Visual chart and estimation.	Visual chart.	Debris from Construction; Fats, Oil and Grease (FOG); Other (specify below)	Mortar	Gravity Mainline; Manhole		Vitrified Clay		50	All sewage was washed down and vacuumed up.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow		Built berm out of dirt to stop flow from going into catch basin. Vacuumed out catch basin. Washed down curb/gutter, and street. Retrieved wash downed water with vacuum. Restored flow at manhole 46.	Inspected Sewer Using CCTV to Determine Cause		CCTV the line.		01/14/2025 11:15	CCTV and investigation finding mortar coming thru the walls of the concrete bell.		None.	01/14/2025 11:15														None.	Added to six month maintenance list.	Yes. Added to six month maintenance program.	No.	CCTV main.	None.	Yes. Six month program.	None.	None.	
2	2SSO10105	Active	Central Contra Costa Sd CS	Central Contra Costa Sanitary District	899687	1.2	Certified	Paul Seitz	CSO Division Manager	13-FEB-25	20-FEB-25	20-FEB-25	Category 1 Spill	615 Arch St Matinez	02/10/2025 12:17	02/10/2025 12:30	02/07/2025 08:00	02/10/2025 13:40	25-0736		10A3-M27.5	38.00726	-122.1289	Manhole			2724	Spill travelled from MH, down creek embankment and into Arroyo Del Hombre Creek.	N				Spill travelled from MH, down creek embankment and into Arroyo Del Hombre Creek.	2724	0	Surface Water; Unpaved Surface		Spill flowed from MH and down dreek bank and into flowing creek	Y	38.007264	-122.128844	38.00731	-122.12905					02/10/2025 12:55	Based on information gathered and using our staffs experience, we estimated the spill to be going on for 3 days. By counting the connections upstream that tie into the mainline and using the daily flow rates for each connection is how we determined an estimate for the spill volume. Please see the attached spill estimation sheet for our calculations.	See above (3)	Debris-Rags; Root Intrusion		Gravity Mainline		Other (specify below); Vitrified Clay	CLC	85	Based on an inspection conducted by a third party biologist, there was no negative impact on the creek or it's aquatic life.	N	Cleaned Up (specify below); Restored Flow		After we restored flow, our efforts shifted to cleaning the creek bank. There was a tremendous amount of flow in the creek due to recent rain storms. Damning, flushing and pumping the creek was not an option.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		We inspected the mainline with CCTV and adjusted the cleaning method. 	Adjusted cleaning method on 2/19/25.	02/10/2025 14:30	The spill cause was found to be caused by root intrusion and an abundance of rags.	N			Arroyo del Hombre Creek	Stream/Creek		A flowing creek	None, verified by an independent biologist.	Other (specify below)	None	N/A	0	N	Y	Upstream, Downstream	CBOD, Dissolved oxygen, PH, Total residual chlorine, Ammonia, COD, Enterococcus, Total/Fecal coliform, E-Coli										
5S	5SSO10890	Active	City Of Antioch CS	Antioch City	899689	1.2	Certified	Toby A Beach	Collection System Superintendent		20-FEB-25	20-FEB-25	Monthly Category 3 Spill	Village East Park	01/28/2025 03:50	01/28/2025 04:04	01/28/2025 03:48				The City of Antioch Landscape contractors reported the overflow, who then notified the Collections department on 1/28/25. Staff responded on-site same day at 4:04 pm. Sewer seeping from Manhole #G21-6-032 at (37.99473*N 121.83956*W). Crew relief sewer stoppage 4:13 pm. 	37.99471	-121.83957	Manhole	N/A	N/A	83	I attached photos of before and after pictures and sketch of of formula 	N	N/A	0				83	Paved Surface; Unpaved Surface	n/a	53 gallons was removed with vac-truck and 30 was shoveled up and disposed to our sewer bin.	Y	37.99477	-121.83957							01/28/2025 04:13	The volume of spill was calculated by area/volume calcs. Measurements were taken from onsite spill. 	Area/Volume	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		45	Gravity main	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Shoveled 30 gallons soaked dirt. All sewer was recovered	Upon arriving on site, I observed sewer running down the walking path. We immediately used absorbent material to contain the spill. I called out a combo truck to clear the mainline to restore flow. Ran mainline multiple times to make sure all debris was cleared.  Cleaned all affected areas. The contaminated dirt dug out disposed in our sewer debris bin	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Cleaned Up (specify below), Contained All or Portion of Spill, Restored Flow 		01/28/2025 09:58	Televised line, we determained grease was the cause of spill		none	01/29/2025 09:58														none	none	none	none	none	none	none	none	none	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	899690	1.1	Certified	Kent Vian	Asst. Deputy Director		24-FEB-25	24-FEB-25	Monthly Category 3 Spill	NOT# 40201209026 3060 53RD ST.	02/11/2025 07:36	02/11/2025 08:07	02/11/2025 07:35				THE SPILL ORIGINATED FROM 2 SPILL APPEARANCE POINTS. THE FIRST SPILL APPEARANCE POINT WAS FROM A MANHOLE LOCATED EAST OF 3060 53RD ST, IN THE MIDDLE OF THE STREET, 32.73702, -117.08144. THE SECOND SPILL APPEARANCE POINT WAS FROM A CLEANOUT LOCATED EAST OF THE MANHOLE AT 3062 54TH FRONTAGE WEST RD. 32.73701, 117.08136.	32.73702	-117.08144	Lateral Clean Out (Private); Manhole	NA	THE SECOND SPILL APPEARANCE POINT WAS A CLEANOUT OF CALVARY EVANGELICAL LUTHERAN CHURCH.	355	THE DESCRIPTION OF THE EXTENT OF THE SPILL AND SPILL BOUNDARIES WERE FROM 3060 53RD ST TO AN OUTLET BEHIND 5273 CAMTO MINDY.	Y	THE DRAINAGE CONVEYANCE SYSTEM IS A 24  REINFORCED CONCRETE PIPE THE ENTRY LOCATION WAS AT 2879 CAMTO MINDY.	320				320	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface	NA	THE SPILL EXITED THE COLLECTION SYSTEM (11.D & 11E.)MANHOLE AND (11.F & 11.G) CLEAN OUT AROUND THE SAME AREA, TRAVELING 15' SOUTH, AND WENT ON BOTH SIDES OF THE STREET(11.H & 11.I) IN THE CURB AND GUTTER. THEN, IT TRAVELED SOUTH 604' INTO THE DROP INLET(11.J & 11.K) ON 2879 CAMTO MINDY, WHERE THE SPILL ENTERED THE STORM DRAIN INLET. THE SPILL CONTINUED SOUTH 230' AND EXITED THE OUTLET WHERE THE SPILL WAS CONTAINED AND POOLED UP.	Y	32.73702	-117.08144	32.73701	-117.08137	32.73694	-117.0815	32.73544	-117.08144	02/11/2025 08:46	THE SPILL VOLUME ESTIMATIONS WERE CALCULATED USING THE FLOW AND DURATION METHOD.	THE SPILL START TIME WAS WHEN THE CUSTOMER NOTIFIED DISPATCH OF THE BACKUP, AND THE END TIME WAS WHEN THE BLOCKAGE WAS RELIEVED AND CREWS CONFIRMED THE SPILL STOPPED.	Fats, Oil and Grease (FOG)	NA	Manhole	NA	Concrete	NA	76	THE IMPACTS OF THE SPILL WERE THE STREET, CURB & GUTTER, AND STORM CONVEYANCE SYSTEM.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	NA	THE CREW ONSITE DID NOT CONTAIN THE SPILL IMMEDIATELY DUE TO THE SEWER GOING ON BOTH SIDES OF THE STREET. THE CREW INSTEAD RELIVED THE GREASE BLOCKAGE AND CLEANED UP THE SPILL BY WASHING DOWN THE STREET, CURB AND GUTTER AND COLLECTING THE WATER DOWNSTREAM.	Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Post Spill CCTV	NA	THE CORRECTIVE ACTIONS OF THE SPILL WERE TO RELIEVE THE STOPPAGE USING A COMBINATION TRUCK (JETTER) AND TRAP THE DEBRIS. CCTV FOUND HEAVY GREASE UPSTREM FEWD NOTIFED RESIDENTS ABOUT FOG ISSUES IN THE AREA.  		02/24/2025 08:05	THE OPERATOR RELIVED THE GREASE BLOCKAGE AT 300', WHERE THERE IS A MANHOLE.		YES BY IN HOUSE FEWD SECTION 	02/28/2025 08:14														N/A	FEWD NOTIFED RESIDENTS ABOUT FOG ISSUES IN THE AREA.  ALSO, WILL HAVE MANHOLE IN THE AREA RENEWED. 	MAIN WAS RENEWED 4/2021. 	RENEWAL IF MANHOLE # 105 	N/A	COMPLETED ON 4/2021	SEE DOC UNDER 53 ST	N/A	YES BY IN HOUSE FEWD SECTION 	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	899692	1.1	Certified	David Leamer	Assistant Superintendent		28-FEB-25	28-FEB-25	Monthly Category 3 Spill	354735	01/18/2025 12:47	01/18/2025 13:36	01/18/2025 12:37				See Attached Spill map with Photos.	38.67046	-121.28457	Lateral Clean Out (Public)			103	See Attached Spill Map with Photos	Y	See Attached Spill map with Photos.	98				102	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		See attached Spill Map with Photos.	Y	38.67036	-121.28459	38.66794	-121.28553					01/18/2025 14:20	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		59	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		See Attached Description of Spill Event	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		SacSewer inspected mainline with CCTV on 2/4/25. Based on findings, SacSewer increased preventative cleaning frequency to 12 months from 24 months.		01/18/2025 19:00	A SacSewer cleanout spilled to a sidewalk, curb, and gutter and flowed to a storm drain inlet in front of 5736 Mariposa Ave, entering the drainage conveyance system. SacSewer crews broke the stoppage in the main line. SacSewer M&O used a hydro-vacuum truck to rinse and vacuum all above-ground surfaces in contact with the spill. Crews also hydro-cleaned the affected SD system from the storm drain inlet at 5736 Mariposa Ave to the SDMH that showed no positive test results for sewage.		None	01/18/2025 19:00														N/A	SacSewer increased preventive cleaning frequency from 24 months to 12 months.	SacSewer increased preventive cleaning frequency from 24 months to 12 months.	N/A	SacSewer inspected mainline with CCTV on 2/5/25.	N/A	SacSewer increased preventive maintenance frequency on 2/5/25	N/A	None	
1	1SSO10022	Active	Crescent City CS	Crescent City	899695	1.6	Certified	David Yeager	Public Work Director		19-FEB-25	19-FEB-25	Monthly Category 3 Spill	2nd and N Street	01/06/2025 16:08	01/06/2025 16:15	01/06/2025 15:29				Overflow from manhole in street with curb near the mall parking lot.	41.42173333	124.19249444	Manhole	SSO from City manhole and an upstream private manhole in the mall parking lot due to a blockage in the City gravity main.	Backup in City gravity main resulted in discharge from a second location at a private manhole in the mall parking lot.	300	Spill originated from a manhole, traveled to the curb into a stormwater drop-inlet.  All spilled material in the drop inlet was recovered.  Second appearance point in mall parking lot, contained and did not enter the storm water system.	Y	Spill originated from a manhole, traveled to the curb into a stormwater drop-inlet.  All spilled material in the drop inlet was recovered.	5				295	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Spill originated from a manhole, traveled to the curb into a stormwater drop-inlet.  All spilled material in the drop inlet was recovered.	Y	41.75555556	124.19314722							01/06/2025 16:45	Bucket spill method and amount recovered.	Based on the area of spill at the arrival time, and initial report time, the start time was estimated to be 45 minutes prior to staff arrival.	Debris-General; Fats, Oil and Grease (FOG)		Gravity Mainline		Polyvinyl Chloride (PVC)	6-inch VCP	30	Spill was contained to the asphalt surface and one drop inlet. Only impact was to public access as foot and vehicle traffic was detoured during the cleanup.	N	Contained All or Portion of Spill; Restored Flow		Jetter truck and vac trailer were dispatched immediately to the location. The Vac trailer immediately contained the spill at the drop inlet and began cleanup efforts while the jet truck found the blockage in the main and fixed the problem.	Added Sewer to Preventive Maintenance Program		As soon as the jet truck arrived at the location it began efforts to find the clog and correct the issue. The location has been added to our monthly jetting list.  		01/06/2025 18:45	NA		NA	01/06/2025 18:45														NA	The location has been added to our monthly jetting list.	The location has been added to our monthly jetting list.	NA	NA	NA	Section has been added to monthly jetting list.	NA	NA	
8	8SSO11418	Active	Hemet City CS	Hemet City	899696	1.2	Certified	Travis Holyoak	Water Wastewater Superintendent 	13-FEB-25	13-FEB-25	13-FEB-25	Category 1 Spill	Sanderson and Florida, Goodwill Shopping Center	02/12/2025 14:45	02/12/2025 14:55	02/12/2025 14:45				Spill was from a private manhole in front of the Goodwill shopping center located at 3133 W. Florida Ave. in Hemet Ca.  The Blockage was in the owned and maintain portion of EMWD at the intersection of Highway 74 and Sanderson.  The cause was from debris from a Caltrans Paving project that ended up in the channel of the sewer main.  David Ortega with Riverside County Flood Control was notified.	33.74593	-117.00587	Manhole			900	Spill occurred at the coordinates of latitude 33.74593 and longitude -117.00587, flowing into the parking lot  From the Parking lot the flow of the drainage system goes south towards a storm drain catch box and eventually gathers at Riverside County Flood control channel..  The day of the spill, there was consistent rainfall which made containment difficult along with recovering of spill.  Rain water and spill gathered in the parking lot with potentially some leaving the parking lot and traveling south to storm drain catch box.	Y	Drainage system collects storm water in the parking lot and flows along curb and gutter until it reaches a storm drain catch box.	1500	150	Potentially entered Storm Drain Catch Box located at latitude 33.745096 longitude -117.006545.  Storm water flows south to Riverside County Flood Control channel.  David Ortega with Riverside County Flood Control was notified of the potential of spill entering the channel. 	0	1500	Drainage Conveyance System; Street/Curb and Gutter (2 3)		Spill was from a private manhole in front of the Goodwill store located in the shopping center located at 3133 W. Florida Ave. in Hemet Ca.  The blockage was in the owned and maintained by portion of EMWD at the intersection of Highway 74 and Sanderson.  The cause was from debris from a Caltrans Paving project that ended up in the channel of the sewer main.  David Ortega with Riverside County Flood Control was notified.	Y	33.7459	-117.00589							02/12/2025 16:15	Utilizing SSCSC manhole gauge and calculating start of spill to end of spill to determine amount of spill.  Utilize a combination truck for recovery of spill. Truck holds 1000 gallons and took a load and a half to return to sewer system.	Utilizing time of discovery of spill and time blockage was cleared which stop the discharge of the spill out of private manhole.	Debris from Construction	Debris from pavement project being conducted by Caltrans entered the sewer system.	Gravity Mainline; Manhole		Vitrified Clay		40	Spill out of manhole at the private manhole located at latitude 33.74590 and longitude -117.00589, overflowed into the private parking lot in the shopping center of the South West corner of Sanderson and Highway 74.  Flow gathered in the parking lot along with storm water from a rain event that day.  Potentially entered a storm drain catch box south of spill along with rainwater.	Y	Cleaned Up (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Response included clearing blockage in EMWD owned and maintained sewer main to eliminate spill.  A combination truck was utilized to clean up the area of the spill hauling a load in a half of spill and storm water back to the sewer system. David Ortega from Riverside County Flood Control was notified of a sewer spill of 900 gallons that potentially a portion of the spill may have entered the Flood Control owned channel as spill potentially could have mixed with the storm water in the parking lot during the rain event that day.	Other (specify below)	work with Caltrans to eliminate potential problems.	Contacted Caltrans and Contractor to gain access to inspect all sewer manhole and mains within the construction limits of their project to eliminate future issues,	Inspect sewer system within Caltrans paving project limits, CCTV mains and other infrastructure.	02/12/2025 18:00	The blockage was in a EMWD owned and maintain sewer mainline that the City of Hemet's sewer system flows into through a interagency agreement.  The cause was found to be rope and debris from a Caltrans Paving project that is currently ongoing on Hwy 74.  The debris was removed from the system and Caltrans was notified of the issue.	N			Riverside County Flood Control Channel in Hemet CA.	Wash		Riverside County Flood Control Channel in Hemet CA.	None	Other (specify below)	No access to public to Riverside County Flood Control	Riverside County Flood Control	0	N	N												
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	899700	1.2	Certified	Daniel Whitlock	Manager	13-FEB-25	03-MAR-25	03-MAR-25	Category 2 Spill	150 Toland Ave.	02/13/2025 03:30	02/13/2025 03:40	02/13/2025 02:00				Spill on Toland between Napoleon and Galvez.  P-98178 N-28408 N-65175 N-65174 L-277735 L-277242	37.74643	-122.39668	Manhole; Other (specify below); Upper Lateral (Private)	Combined system catch basin.		65000	Spill on Toland St. Spill went back into combined system.	N						65000	Other (specify below); Paved Surface	Combined system catch basin.	Spill in front of 150 Toland. All spill returned to combined sewer system.	Y	37.74643	-122.39668							02/13/2025 05:45	H&H Hydraulics.	H&H Hydraulics used N-28408 in model.	Surcharged Pipe (Combined Collection System Only)	Rainfall exceeded capacity of the pipes.	Gravity Mainline		Vitrified Clay		62	No road closures or property damage.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below)	Returned all spill to combined sewer system.	Area was disinfected and hosed down to the vac con once water was able to go into the catch basins again.	Other (specify below)	Rainfall exceeded capacity of the sewer.	Rainfall exceeded capacity of the sewer.	Spill Start: 2/13/2025 2:00am Spill End: 2/13/2025 12:05 pm Cleanup Start: 2/13/2025 3:40am Cleanup End: 2/13/2025 5:00am Secondary clean up complete 2/28/25 13:25 	02/28/2025 13:25	Rainfall exceeded capacity of the sewer due to storm.	N												N													
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	899701	1.2	Certified	Daniel Whitlock	Manager	13-FEB-25	03-MAR-25	03-MAR-25	Category 2 Spill	Evans and Selby	02/13/2025 03:30	02/13/2025 04:35	02/13/2025 02:05				Flood at 1925 Evans St. near Selby. P-103943 P-104834 N-65089 N-69090 N-343133	37.7462	-122.39417	Manhole; Other (specify below)	Combined System Catch Basin.		140000	Spill on Evans returned to system when rain slowed down.	N						140000	Other (specify below); Paved Surface	Combined System Catch Basins.	Spill at intersection of Evans and Selby.	Y	37.7462	-122.39417							02/13/2025 05:45	H&H Hydraulics	Used N-335324, N-343133, and N-335325 in model.	Surcharged Pipe (Combined Collection System Only)	rainfall exceeded capacity of the sewer.	Gravity Mainline		Vitrified Clay		80	No road closures or property damage.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below)	Returned all spill to combined sewer system.	Disinfected and hosed down spill area once water receded back into the sewer.	Other (specify below)	Flooding caused by rainfall exceeding capacity of the pipes.	Flooding caused by rainfall exceeding capacity of the pipes.	Spill Start: 2/13/2025 2:05 am Spill End: 2/13/2025 5:45 am Cleanup Start: 2/13/2025 4:35am Cleanup End: 2/13/2025 5:30am Secondary Clean up end 2/28/24 13:50 	02/28/2025 13:50	Rainfall exceeded the capacity of the sewer due to storm.	N												N													
5F	5SSO11068	Active	Tuolumne CS	Tuolumne City SD	899704	1.2	Certified	Ben Kikugawa	CPO/LRO		27-FEB-25	27-FEB-25	Monthly Category 3 Spill	Open Field	02/13/2025 08:10	02/13/2025 08:32	02/13/2025 07:00				Spill appearance point was in an open field above a sewer mainline.	37.95386	-120.24437	Gravity Mainline; Other (specify below)	Mid-segment cleanout.		50	See Attachment	N						0	Unpaved Surface		Spill destination was unpaved surfaces in a field. See attachments. Full impacted area is difficult to determine with all surrounding area having saturated soils from current rain event.	Y	37.95386	-120.24441							02/13/2025 09:13	Best guess while considering the number of homes connected to the mainline, the amount of sewer debris on the surface, and the time the caller stated he observed the spill.	The spill start time is unknown but close in proximity to a residence who stated they would have seen it if the spill occurred earlier than when reported. 	Debris-General; Pipe Structural Problem/Failure - Installation		Gravity Mainline		Other (specify below)	Asbestos Cement Pipe	57	Sewage debris was piled at the immediate appearance point. Sewer spill water had percolated into the surrounding soils. The was no discharge from the spill appearance when responding operators arrived on scene. 	N	Cleaned Up (specify below); Restored Flow	Sewer debris was raked up and disposed of at the wastewater treatment plant. a nearby residence was asked to keep pets and children away from the area. 	Due to an ongoing heavy rain event, our staff had to use line cleaning equipment with 4x4 capabilities. After the blockage was cleared and flow restored, our staff cleaned up the sewage remnants. A nearby neighbor was advised to keep pets and children out of the area.  	Post Spill CCTV	  	CCTV findings show an offset of the sewer pipe joints for a private lateral connection wye suggesting an improper installation. The District will excavate and correct this connection once the ground dries out enough to achieve adequate compaction below the pipe fitting base. This should take place in May or June 2025.		02/13/2025 09:35	Investigative findings include CCTV inspection only. The CCTV inspection revealed a moderate pipe connection offset at a private lateral connection wye fitting. General sewer debris from the lateral is believed to become entrapped on the offset creating a blockage that builds up over time until the entire sewer pipe is obstructed.  		None	02/27/2025 15:00														N/A	The system will be repaired to correct the offset joint at the connection fitting. 	No adjustments to maintenance schedules are needed to prevent the reoccurrences. 	The sanitary sewer section will be rehabilitated in May or June 2025.	A CCTV inspection was done and was used to place the sewer segment on a repair list. 	The whole sewer basin has been recognized as exceeding its useful life expectancy and is in need of replacement. Funding will be required to do this as the basin was constructed using asbestos cement pipe. 	N/A	None	None	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	899709	1.1	Certified	David Leamer	Assistant Superintendent		28-FEB-25	28-FEB-25	Monthly Category 3 Spill	355291	01/29/2025 19:38	01/29/2025 20:12	01/29/2025 17:00				See Attached Spill map with Photos.	38.59052	-121.39035	Lateral Clean Out (Private); Lateral Clean Out (Public)		Spilled from the private cleanout and the SacSewer cleanout.	297	See Attached Spill Map with Photos	Y	See Attached Spill map with Photos.	146				287	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		See attached Spill Map with Photos.	Y	38.59069	-121.39086	38.5915	-121.39412					01/29/2025 20:26	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Root Intrusion		Gravity Mainline		Vitrified Clay		74	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		See Attached Description of Spill Event	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		SacSewer inspected mainline with CCTV on 1/30/25. Based on findings, SacSewer increased preventative cleaning frequency to 12 months from 6 months.		01/30/2025 02:30	The roots in mainline caused one private cleanout and one SacSewer cleanout at 3132 Chelsea Road to spill to the backyards of 3132 and 3128 Chelsea Road, to the lawn between two houses, to the curb and gutter, and into a storm drain inlet at 3124 Chelsea Road, entering the drainage conveyance system. SacSewer crews cleaned the affected aboveground area and recovered the spill on land using a hydro-vacuum truck. Crews also hydro-cleaned the affected drainage conveyance system from the SD inlet at 3124 Chelsea Road to the SDMH at 1413 Kenney Way. The spill that entered the drainage conveyance system was fully recovered.		N/A	01/30/2025 02:30														N/A	SacSewer increased preventive cleaning frequency from 12 months to 6 months.	SacSewer increased preventive cleaning frequency from 12 months to 6 months.	N/A	SacSewer inspected mainline with CCTV on 1/30/25.	N/A	SacSewer increased preventive maintenance frequency on 1/31/25.	N/A	N/A	
2	2SSO10183	Active	San Mateo CIty CS	San Mateo City	899711	1.3	Certified	Tony Baltodano	PW Field Maintenance Manager	14-FEB-25	24-FEB-25	24-FEB-25	Category 1 Spill	Saratoga UFES	02/13/2025 21:20	02/13/2025 20:27	02/13/2025 19:20	02/13/2025 21:05	25-0826	31-MAR-25	gravity line to underground overflow storage facility	37.54854	-122.30111	Manhole			270000	exited multiple manholes flowing directly to storm inlet leading to creek	Y	storm drain directly connected to creek	0	0	Pipe leading to creek	270000	0	Surface Water		The spill overflowed from two manholes, flowing directly to storm inlets leading to the Borel creek that ultimately drained into the Marina Lagoon. Technical is being prepared and will be uploaded soon.  	Y	37.54854	-122.30111							02/14/2025 06:30	SCADA information was used, along with the San Diego method. 	Smart Covers information was used to determine start time and San Diego method was used for overflow calculation. Scada was used to determine when the underground flow equalization system (UFES) was full at 5 million gallons. 	Flow Exceeded Capacity (Separate Collection System Only)		Manhole		Other (specify below)	The underground flow equalization system captured 5 million gallons which reached its capacity.  	20	The spill from two manholes overflowed to nearby storm drain system and directly into the Borel creek. 	Y	Other Enforcement Agency Notified; Returned Portion of Spill to Sanitary Sewer System	OES and CIWQS was notified of the spill. Once the sanitary system caught up, we were able to pump and return the 5 million gallons back to the sanitary sewer system. 	After we captured 5 million gallons of sewage with the underground Flow Equalization System, we could not contain all spill from 2 manholes due to the volume.  	Other (specify below)	The corrective actions is to pump down the underground Flow Equalization System before it reaches full capacity of 5 million gallons to allow for more storage. This will be determined based on the rain event. 	The WWTP plans to adjust the Underground Flow Equalization System SOP depending on the rain event to Equalization System to avoid maxing out the storage system. 	Revise SOP as needed. 	02/24/2025 11:30	Underground Flow Equalization storage tank was full at 5 million gallons of sewage, therefore, two manholes overflowed. 	N			Borel Creek 	Stream/Creek		The overflow discharged to nearby storm drains which directly flowed to the Borel Creek which then flowed to the Marina Lagoon that ends up being pumped out the SF bay. 	None 	Public Closure		City of San Mateo Regulatory Compliance Department 	7	Y	Y	At 2 discharge points on Borel Creek. They also tested 100 feet upstream and downstream of the discharge points. 	Total Coliforms, Enterococci, ammonia, E. coli 										
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	899712	1.2	Certified	Daniel Whitlock	Manager	14-FEB-25	03-MAR-25	03-MAR-25	Category 2 Spill	Marin and Michigan	02/13/2025 07:30	02/13/2025 08:40	02/13/2025 02:00				Intersection of Marin and Michigan Sts.	37.74922	-122.38543	Manhole; Other (specify below)	Combined System Catch Basins		260000	Intersection of Marin and Michigan Streets.	N						260000	Other (specify below); Paved Surface	Combined System storm drains.	CBs: N-391080, N-44878, N-4400, N-52421 Culvertts: P-391081, P-338042, P-313100 Manholes: N-71412,N-29815, N-13268 Sewer Pipes: P-129041, P-96314, P-96315	Y	37.74922	-122.38543							02/13/2025 12:50	H&H Hydraulics	N-71412, N-29815, and N-13268 was used in H&H model.	Surcharged Pipe (Combined Collection System Only)	Rainfall exceeded the capacity of the sewer.	Gravity Mainline		Vitrified Clay		94	No road closures.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Other Enforcement Agency Notified	Returned all spill to combined sewer system.	Notified SFDP and RWQCB. Deployed signage of sewage out of system. Contained spill and washed down area. Sucked up spoils and cleared area.	Other (specify below)	Rainfall exceeded capacity of the sewer.	Rainfall exceeded capacity of the sewer.	Spill Start: 2/13/2025 2:00 am Spill End: 2/13/2025 12:50 pm Cleanup Start: 2/14/2025 12:30 pm Cleanup End 2/14/2025 13:31	02/14/2025 13:31	Rainfall exceeded capacity of the sewer due to storm.	N												N													
1	1SSO10058	Active	Rio Dell City CS	Rio Dell City	899715	1.2	Certified	Sunshine Kelly	Wastewater Superintendent	14-FEB-25	14-FEB-25	14-FEB-25	Category 1 Spill	End of Painter Street Manhole	02/13/2025 12:57	02/13/2025 12:57	02/13/2025 12:45	02/13/2025 13:47	25-0810		The spill was located at the Painter Street manhole at 556 Painter St. Photos attached show spill location. 	40.503117	-124.093756	Manhole			16830	The spill was located at the Painter Street manhole and flowed down the gravel ditch away from the residential area toward the Eel River, river bar. Photos show the sandbags, and ditch in place to direct the flow away from the residential area. 	N				Photographs show that the spill during daylight hours never made it to the river	2830	14000	Surface Water		The Spill flowed to the Eel River at Latitude/ Longitude: 40.503055, -124.091890.  	Y	40.503055	-124.09189							02/13/2025 17:45	The volume estimation was based on flow monitoring at the site as well as supervisory control from SCADA based on the trend of the Painter Street lift station wet well level and pump control and the influent flow data into the plant. Volume estimation of spill recovery was based on the volume of the Vactor. the Vactor truck carries 2000 gallons and seven full recoveries were completed during the duration of the spill. 	The methodology of the spill start time was based on supervisory control based on SCADA of the data collected on the Painter Street Pump station trend, and the rain gauge at the Wastewater treatment plant. We were prepared for the event and had sandbags, a ditch to convey the spill away from residential properties, signs posted and the Vac-Tor truck was on standby to respond once notified of spill.	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Other (specify below)	AC	55	There was no impact to residence, or private property, or human life as spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage posted, Vactor Truck on standby, and the property owners were made aware of the issue at this site location.	Y	Contained All or Portion of Spill; Property Owner Notified; Returned Portion of Spill to Sanitary Sewer System		Spill response was already in place before the spill occurred due to the historic trend of this sight. Sandbags were in place, signage installed, property owners were notified and the Vac-Tor truck recovered seven loads, 2000 gallons each, to the Wastewater Treatment plant for treatment. Once the SSO was over, and recovered, chlorine disinfectant was sprayed in the path of the SSO and surrounding area. During and after spill the area was monitored to keep clean if there were any sewage debris. After the spill event the ditch was cleaned and sprayed with chlorine solution for disinfection. 	Plan Rehabilitation or Replacement of Sewer		This site has a planned upsizing project in the planning phases for the past 6 years. Currently waiting on State funding to push the design process forward. Also looking to camera sewer mains and do a smoke test of the laterals in the area that lead to the Painter Street Pump Station	Meeting with the State Water Control Board and Engineering company GHD on January 24th, 2024, provided some comfort that the State would approve the funding of this project, and the City of Rio Dell can start the design process. CCTV-ing of some of the sewer mains that lead to the pump stations up stream of this manhole were just completed in November, 2024. The data is being reviewed currently. 	02/14/2025 09:00	This SSO occurred due to the high levels of I&I. Several days of rain and saturation of the ground caused the pump station to become overwhelmed when large amount of rain occurred at once and caused the SSO at this location, the Painter Street manhole.	N			Eel River	River		The Eel River is a large river that runs north on the east side of the City of Rio Dell. There are no Surface Water users downstream of the SSO discharge location. 	No known impacts to aquatic life.	Restricted Public Access		City of Rio Dell Wastewater Superintendent 	1	N	Y	A sample was taken upstream in the river of the spill location; RSW-001U: Latitude/Longitude (40.496013, -124.093796) A sample was taken where the spill stream enters the Eel River; RSW-001: Latitude/Longitude (40.503055, -124.091890) A sample was taken downstream in the river of the spill location; RSW-001D: Latitude/Longitude (40.508887, -124.111481)  	Per the City of Rio Dell SSO Water Quality Monitoring Plan Samples were analyzed for E.coli and Ammonia.										
8	8SSO10617	Active	Eastern Municipal Water District CS	Eastern Municipal Water District	898423	2.2	Amended	Ken Tagney	Director of Water Reclamation	14-JAN-25	14-FEB-25	14-FEB-25	Category 1 Spill	Day Street Lift Force Main	12/31/2024 12:15	12/31/2024 12:15	12/20/2024 08:59	12/31/2024 13:51	24-7270	14-FEB-25	The spill originated from a sewer force main located near the intersection of Cottonwood Avenue and Day Street in the City of Moreno Valley. The discharge was observed emerging from the ground within the Riverside County Flood Control property on the northeast side of the above intersection.	33.92431	-117.27854	Force Main			7015160	The spill flowed from the point of origin into the Riverside County Flood Control basin, (West End Moreno MDP, Towngate Basin) where it flowed out the outlet of the basin at Day St., and Cottonwood Ave. It then flowed underground through the Edgemont Channel. Edgemont Channel then daylights about 550 feet East of Old 215 Frontage where the concrete channel then continues above ground until reaching Old 215 Frontage. On the West Side of Old 215 Frontage the water flows into an earthen riparian drainage channel until reaching the eastside of the 215 freeway where the water then flows under the freeway. On the westside of the freeway the water flows into Sycamore Creek. The Creek then enters Sycamore Canyon Park. Flow from the creek was traced to Canyon Crest County Club where there was no observable spill material in the flowing water.  	Y	Stormwater basin and concrete drainage channel. 	1497000	0	Edgemont Channel to Sycamore Creek. 	5518565	1497000	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water		The spill flowed from the point of origin into the Riverside County Flood Control basin, (West End Moreno MDP, Towngate Basin) where it flowed out the outlet of the basin at Day St., and Cottonwood Ave. It then flowed underground through the Edgemont Channel. Edgemont Channel then daylights about 550 feet East of Old 215 Frontage where the concrete channel then continues above ground until reaching Old 215 Frontage. On the West Side of Old 215 Frontage the water flows into an earthen riparian drainage channel until reaching the eastside of the 215 freeway where the water then flows under the freeway. On the westside of the freeway the water flows into Sycamore Creek. The Creek then enters Sycamore Canyon Park. Sycamore Creek flows to Canyon Crest Drive; no observable spill material was observed at Canyon Crest Drive.	Y	33.92444	-117.27844	33.92392	-117.28464	33.92046	-117.29176			01/02/2025 00:50	Spill volume was calculated based on Day Street Lift Station flow rate data from a professionally installed meter multiplied by the duration of the spill that was determined from available SCADA data. 	Day Street Lift Station SCADA data trends.  	Other (specify below)	The cause of the spill is still under investigation. 	Force Main		Polyvinyl Chloride (PVC)		30	The spill closed down Day Street between Cottonwood Ave. and Dracaea Ave. for two days. The spill also impacted the flood control basin and well as the out let channel. The spill also affected Sycamore Creek. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	EMWD is cleaning the Edgemont Channel. Clean up of the basin is taking place currently. 	EMWD responded to the spill and worked to isolate the line and bypass the affected pipeline segment.  The Spill was contained in a retention basin upon discovery as apart of the response effort to mitigate impacts. 	Other (specify below)	Spill investigation is currently ongoing. 	Spill investigation is currently ongoing. 	Spill investigation is currently ongoing. 	01/24/2025 13:00	The SSO was caused by a break in a segment of the sewer force main leading from the adjacent Day Street Lift. The break was located adjacent to the intersection of Day Street and Cottonwood Avenue. 	Y	Spill cause and impact evaluations are ongoing. 	03/31/2025 17:00	Sycamore Creek	Stream/Creek		Seasonal Creek. 	None. 	Other (specify below)	Signage posted for contaminated water. 	Not appliciable	0	N	Y	Water quality samples where taken at the point of entry, upstream samples where taken at the flood control basin adjacent to the intersection of Day Street and Cottonwood Avenue, in the City of Moreno Valley. A downstream sample was collected  on the southwest side of Old 215 Frontage road in Riverside adjacent to where Cottonwood Avenue and Old 215 Frontage Road intersect. A secondary downstream sample was also taken from the Canyon Crest Country Club in Riverside. 	The samples where analyzed for Total and Fecal Coliform, E. Coli as well as Ammonia. 									Spill cause and impact evaluations are ongoing. 	
3	3SSO11465	Active	Goleta West SD CS	Goleta West SD	897322	2.1	Amended	Brian McCarthy	General Manager/Superintendent	04-NOV-24	16-FEB-25	16-FEB-25	Category 1 Spill	SB Airport Abandon ARV Adaptor	10/30/2024 12:14	10/30/2024 12:14	10/30/2024 11:53	10/30/2024 15:44	24-6135		Manhole structure on top of 24  Force Main located along access road south [or west] of Santa Barbara Airport taxiway adjacent to runway 7/25.	34.42584	-119.84504	Force Main	At gasket for adapter of removed air release valve on 24  ductile iron pipe force main. Saddle connection with 2  bung plugged with threaded cap. Gasket on saddle connection appears to have failed.  Under further investigation. External corrosion observed on ARV adapter.	None.	8460	Spill emanated from sides of manhole where concrete had broken off. Spilled water wetted a 22' diameter circle area while flowing northwest into a Santa Barbara Airport stormwater drainage culvert basin with concrete apron and unlined plunge pool. Water pooled in existing culvert basin/plunge pool measuring 10' diameter roughly 18  deep. Water continued northwest in a manmade 3' wide stormwater drainage channel for 45' with an average of 10  of standing water. Wetted soil continued north west along Management Area D embankment in a triangular shape for roughly 180 square feet.	Y	Santa Barbara Airport�s stormwater drainage Network 3 outfall number P-X07-029 to �Management Area D� of Goleta Slough that ordinarily infiltrates Airport�s stormwater. Area is surrounded by an embankment on all sides, isolating it from the tributaries of the Goleta Slough area.  Partial concrete lining.	9000	2460	It is our understanding the intent of this basin is to retain storm water runoff from the airport infields so it can percolate into the ground water. The District assumed for reporting that the drainage conveyance in the dry basin is a surface water itself and therefore reports the same volume numbers estimated from the drainage conveyance system as the discharge into and recovery from surface water.	8460	9000	Drainage Conveyance System	See Attachment Response for Response #1	See Attachment Response for Response #1	Y	34.42583	-119.84502	34.4256	-119.84515	34.42561	-119.84523	34.42563	-119.84515	10/30/2024 13:10	See Attachment Response for Response #3 and Update Response.	See Attachment Response for Response #3.a.	Other (specify below)	Spill occurred at an adaptor on the 24-inch ductile iron force main pipe installed in 1978.  The adaptor was where an air release valve had previously been removed and a steel threaded bung was installed at least twenty years ago.  The operational excursion appears to have been caused by a leak that sprung from the adaptor that filled the manhole and leaked from the concrete manhole collar.  The iron adaptor exhibited external corrosion.  The pipeline exposed during repair of the adapter appeared in standard condition.  Operations prior to the leak were normal and there was no unusual stress or pressure on the force main at the time of the leak.	Force Main		Ductile Iron		46	See Attachment Response for Response #7 and Update Response.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Other Enforcement Agency Notified; Property Owner Notified; Returned Portion of Spill to Sanitary Sewer System	See Attachment Response for Response #9 and Update Response.	See Attachment Response for Response #9 and Update Response.	Other (specify below); Repaired Facilities or Replaced Defect	See Attachment Response for Response #10 and Update Response.	See Attachment Response for Response #10 and Update Response.	See Attachment Response for Response #10 and Update Response.	02/05/2025 12:00	The District�s investigation is continuing and the District will continue to provide updates to the Regional Board. The initial investigation involved excavating the manhole to the pipeline and retrieving the adapter at the point of the operational excursion.  External corrosion was observed on the buried adapter, as documented by photo, and the adaptor is stored at the District�s office.  The District has replaced all buried adaptors, and further documented the condition of the pipeline at these points of repair.  In December 2024 and February 2025 the District completed an internal assessment of the integrity of the pipeline with Xylem Pure Technologies.  The resulting report will be used to further inform the District�s investigations of this spill and pipeline condition.	Y	The District will continue to investigate after it replaced the adapters at similar locations where air release valves have been removed (4 other locations) and completed an internal pipeline assessment in December 2024 and February 2025 to ensure the integrity of the force main and to prevent another spill. The SBA Air Release Valve (ARV) Locations Overview Map shows the removed ARV locations.	04/30/2025 16:00	Goleta Slough Management Area D	Other (specify below)	Stormwater outfall plunge pool, drainage conveyance and infiltration basin/dry basin.	See Attachment Response for Response #15.	The District continues to monitor the spill site and no impacts on aquatic life have observed since the spill.	Other (specify below); Restricted Public Access	See Attachment to Response #15	Santa Barbara County Public Health Department and Environmental Health Services	0	N	Y	Samples were collected from the outfall 12 basin from the plunge pool and from the water draining out from the pipe, from pooled water at the farthest extent of the spill area, upstream of outfall 12 in the stormwater pipe at an exposed drop inlet, and at a neighboring outfall 17 for comparison purposes.	pH, ammonia, total coliform, fecal coliform									The District will continue to investigate after it replaced the adapters at similar locations where air release valves have been removed (4 other locations) and completed an internal pipeline assessment in December 2024 and February 2025 to ensure the integrity of the force main and to prevent another spill. The SBA Air Release Valve (ARV) Locations Overview Map shows the removed ARV locations.	
9	9SSO10676	Active	Meadowlark CS	Vallecitos Water District	899719	1.2	Certified	Eric Bennett	Assistant Operations & Maintenance Manager	19-FEB-25	20-FEB-25	20-FEB-25	Category 1 Spill	Laurels Siphon	02/14/2025 07:30	02/14/2025 08:41	02/13/2025 22:15	02/14/2025 10:31	25-0835		Spill occured behind 2022 Sequoia St San Marcos Ca 92078. The spill was from Manhole 8700 and is on an easement that runs along the top of a steep unaccessable canyon. The MH 8700 is at the top of our outfall siphon. 	33.13091	-117.21942	Manhole			1730	see attachments	N				Spill discharged into a steep unaccessable canyon.	1730	0	Other (specify below)	Spilled at the top of a steep canyon then down to the bottom of the canyon	Spilled to bottom of canyon coordinates are below. Spill occured during heavy rain conditions carrying the flow with the runoff. 	Y	33.130887	-117.220991							02/13/2025 22:55	Spill happened over night and not discovered until next morning after it had stopped. After reviewing Smartcover it was determined we had probably spilled and we made a site visit. Spill estimation was calculated off of Smartcover Level Monitor from up stream Manhole 899 and spill rate data was estimated from a previous spill at the same location MH8700.  We used depth data from the Smart Cover (MH899) and based  flow rate estimates off  previously recorded spill rates and cooresponding depths. Attached is an excel sheet attempting to show depths and flow rates with more clarity. 22:15 to 22:21 5GPM then 22:21 to 22:55 50 GPM. 	Using Smartcover historical data from previous spills we have detemined that a spill at this location will start when the Smartcover reads around 195  in MH899.  When depth at metered manhole goes above 195'' we have our start time and when it drops below 195  is the spill end time. We usually try to be onsite when the meter level starts to climb to get exact start time but the conditions at night are unsafe in severe weather so we have used the Smartcover meter reads.   	Flow Exceeded Capacity (Separate Collection System Only); Natural Disaster (specify below); Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole; Siphon		Polyvinyl Chloride (PVC)		19	No impacts or closures 	Y	Cleaned Up (specify below); Other Enforcement Agency Notified	Cal OES notified and we were given control number 25-0835. Very little cleanup needed at the site, minimal paper. Spill destination of the canyon in not accessible. 	No containment as spill washed into the bottom of the canyon. Spill is in area where access is limited and dangerous at night, especially during rain. We returned to the site and cleaned up the little bit of paper left behind. 	Plan Rehabilitation or Replacement of Sewer		This section is already part of a Capitol Improvement Project. Because of the location of this manhole there is no way to divert flow or do any type of pump around if it becomes over capacitated due to storm surge. 	Project is still in design phase. Expected completion of construction is sometime in 2030.	02/14/2025 09:10	No investagtion, this is a capacity issue when we have heavy rain storms. 	N			Unnamed Creek	Stream/Creek		This unnamed creek flows to the San Marcos Creek which is over 4 miles away. 	none	Other (specify below)	No access impact. 	No closure	0	N	N												
3	3SSO11524	Active	Monterey City CS	Monterey City	899722	1.2	Certified	Andrew Easterling	City Engineer	14-FEB-25	24-FEB-25	24-FEB-25	Category 1 Spill	290 Mar Vista Dr	02/14/2025 07:30	02/14/2025 07:59	02/13/2025 19:00	02/14/2025 08:50	25-0830		Sewer manhole F03-002 located in front of 290 Mar Vista Drive.  	36.58743	-121.90978	Manhole			600	 sewage was surcharging out the manhole pick hole into the street, and flowed approximately 500 feet down an asphalt swayle toward Soledad Drive, where it entered a culvert and discharged into an unnamed seasonal creek.	Y	Asphalt swayle on west side of Mar Vista Drive.	0	0	Sewage entered a private driveway culvert at 307 Mar Vista Dr. and exited an outlet which was not visible, but the flow could be seen down the embankment approximately 20' where it entered the seasonal creek.	600	0	Surface Water		Spill originated at manhole f03-002 in front of 290 Mar Vista Dr. and flowed down an asphalt swayle approximately 500 ft. where it entered a culvert that discharged into an un-named seasonal creek.	Y	36.58864	-121.9102							02/14/2025 08:31	Using Table A of the SERP  Estimated SSO Flow Out of MH with Cover in Place , a spout between 1/2 and 3/4 inch was observed flowing out the rim.  According to table A, these conditions would yield an SSO of around 5 gpm.  It had rained over night and previously that morning, so a wet area could not be calculated.	After interviewing the reporting party, he explained that water began to leak out the manhole around 7pm the previous night, but then stopped.  It began to leak around 7:30 am the next day which was when he reported the spill.  It is assumed that the spill flowed for 60 minutes during peak flow the previous evening at 5gpm, then subsided over night, and flowed for another 60 minutes the following morning at 5gpm during peak flows.  120 minutes @ 5gpm = 600 gallons.	Root Intrusion		Gravity Mainline		Vitrified Clay		100	Spill entered a seasonal creek that had moderate flow from the recent rain event.  The street surface was washed from the rain, and no sewer was able to be recovered.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		Upon arrival, Streets created an earthen dam around the manhole to contain a portion of the spill.  They then hydrojet from the nearest downstream manhole to clear the blockage.  The earthen material was vacuumed and disposed of.  The rain had rinsed the street and gutter clean.  No disinfectant was applied due to the wet conditions.	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance		The line was hydrojet to relieve the blockage.  Several passes were made to insure the obstruction was removed.  A work order was requested to follow up with a chain cutter to mechanically remove the roots.  Root cutting scheduled for the month of March 2025.	Chain cutting scheduled for the month of March 2025 to prevent a future occurance.	02/14/2025 10:43	Previous CCTV inspection indicated the presence of roots.  This is consistent with the resistance the hydrojet encountered prior to clearing the blockage.  A work order was submitted to mechanically remove the roots using a chain cutter.	N			Un-named seasonal creek 	Stream/Creek		un-named seasonal creek	The creek had moderate flow from the recent rain event and the sewage was substantially diluted.  No visual or odor was observed once the sewer entered the water.	Temporary Restricted Use		City of Monterey	0	Y	Y	Ammonia test strips were used at 250 ft and 500 ft downstream of the appearance point.	Ammonia test strips. At 250 ft downstream of the appearance point, approximately 3ppm ammonia was detected.  At 500 ft downstream, approximately 1 ppm ammonia was detected.  The rain water appeared to dilute the sewage as it flowed further from the source.										
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	899724	1.3	Certified	John J. Hough	San Dist. Superintendent	14-FEB-25	26-FEB-25	26-FEB-25	Category 1 Spill	355869	02/11/2025 16:01	02/11/2025 16:37	02/11/2025 16:00				See Attached Spill map with Photos.	38.51681	-121.38667	Lateral Clean Out (Public); Manhole			370	See Attached Spill map with Photos.	Y	See Attached Spill map with Photos.	173	0	See attached Spill map.	91	330	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See Attached Spill map with Photos.	Y	38.51681	-121.38667	38.51675	-121.38667	38.51761	-121.38655			02/11/2025 16:37	See attached Volume Estimation.	See attached Volume Estimation.	Debris-General		Gravity Mainline		Vitrified Clay		38	See attached Description of Event.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified the City of Sacramento.	See attached Description of Event.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		SacSewer inspected the main line with CCTV on February 18, 2025. Based on the findings, SacSewer plans to repair the main line by the end of February 2025 and reinspect for preventative maintenance evaluation within one year.	SacSewer targets repair of the main line by the end of February 2025.	02/12/2025 00:00	See attached Description of Event.	N	N/A		Morrison Creek	Stream/Creek		Morrison creek is an earthen lined channel with a concrete lined low flow channel. The low flow channel was flowing full with moderate velocity.	No observed impacts to aquatic life.	Other (specify below)	Morrison Creek is protected by a fence and was not accessible to the public.	N/A	0	N	N											N/A	
2	2SSO10170	Active	Richmond City CS	Richmond City	899725	1.2	Certified	Mary Phelps	Water Resource Division Manager	14-FEB-25	18-FEB-25	18-FEB-25	Category 1 Spill	5111 Barrett Ave	02/13/2025 19:00	02/13/2025 19:30	02/13/2025 18:45	02/13/2025 20:40	25-0824		Overflow from asset ID H13MH123 and private lateral outside of residence (See attached photos)	37.93595	-122.32291	Lateral Clean Out (Private); Manhole		Spill appeared from private lateral servicing the residence at 5111 Barrett Ave (see attached photo)	1600	See attached 	Y	see attached	1200	400	see attached	400	1200	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Surface Water		See attached	Y	37.92929	-122.32425							02/13/2025 20:05	Estimation based on operator training and visual assessment.	From interview with resident who initially reported the SSO	Debris-Rags; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		50	See attached	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		see attached	Other (specify below)	Will conduct FOG related public outreach at residences that contribute flow to gravity main.	Hydro jet gravity main to relieve blockage. Contained and recovered the majority of the spill in the storm conveyance system. Returned to sanitary sewer. Will conduct FOG related public outreach at residences that contribute flow to gravity main.	Response was immediate. Will conduct FOG related public outreach at residences that contribute flow to gravity main. Increase maintenance as needed. 	02/13/2025 21:30	FOG and rags were discovered while restoring flow to gravity main. 	N			SF Bay	Ocean		San Francisco Bay	No	Other (specify below)		N/A	0	N	N												
5S	5SSO10869	Active	Auburn Lk Trls Onsite WW Disp CS	Georgetown Divide PUD	899726	1.1	Certified	Alexis Elliott	Water Resources Manager		18-FEB-25	18-FEB-25	Category 1 Spill	Station 16	02/13/2025 10:15	02/13/2025 10:00	02/13/2025 08:15	02/13/2025 10:15	25-0799		1534 American River Trail	38.534198	121.00023	Pump Station			2400	Effluent coming out of the pump tank and overflow basin	Y	seasonal drainage that reaches Knickerbocker creek	0	0	seasonal creek behind our lift station	2000	0	Building or Structure		Heavy Rain causes over flow at lift station. 	Y	38.534198	121.00023							02/13/2025 12:15	Visual estimation/bucket test 	High-level alarm and employee checks	Natural Disaster (specify below)		Other (specify below)	Pump station tank and overflow under sized for I&I	Other (specify below)	didn't fail at pipe	10	Comes out of pump station onto gravel and soil. In heavy rains it makes it to a seasonal drainage. 	Y	Cleaned Up (specify below); Contained All or Portion of Spill	Disinfect and waddles for containment 	Disinfect and waddles for containment 	Other (specify below)	We are working on getting another over flow tank for storm events	Yearly maintenance. Smoke testing, manhole inspections. We camera all laterals also. 	Found two 4  broken clean outs within the seasonal drainage. We capped them. 	02/13/2025 16:05	Employees receive high level alarm and then respond. We watch the spill throughout the day. Apply disinfection 	Y	We always spill during high rain events	04/14/2026 12:00	No name	Other (specify below)	No name its just a seasonal drainage. 	After heavy dilution it makes its way to Knickerbocker Creek	no	Other (specify below)	none	none	0	N	Y	100 feet above station 16 and 100 feet blow	coliform, fecal, and ammonia									We always spill during high rain events	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	899727	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	16-FEB-25	27-FEB-25	27-FEB-25	Category 1 Spill	69th Avenue & Snell Street, Oakland Ca  	02/13/2025 02:30	02/13/2025 04:30	02/13/2025 02:30	02/13/2025 06:14	25-0791		2 Manholes overflowing in the street, the sewage was flowing to the nearest storm drain inlets.	37.75556	-122.19825	Manhole			920	2 Manholes overflowing in the street, the sewage was flowing to the nearest storm drain inlets.	Y	12  storm drainpipe that flows to Lyon creek. 	0	920	12  storm drainpipe that flows to Lyon creek. 	920	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		2 Manholes overflowing in the street, the sewage was flowing to the nearest storm drain inlets.	Y	37.75556	-122.19825							02/13/2025 04:40	M/H # 1: 4  Height - 1  Diameter = 3.54 GPM M/H # 2: 1  Diameter - 4  Diameter = 3.54 GPM 3.54 x 2 = 7.08 GPM  130 minutes x 7.08 GPM = 920 Gallons.	Stop time was based on when the water volume decreased after the rainstorm. We used a monitor to determine the stop time.	Other (specify below)	High volume of water in mainline from a rainstorm. 	Gravity Mainline		Vitrified Clay		125	Nine hundred and twenty gallons overflowed from 12  VCP pipe into a storm inlet. The storm inlet flows to Lion Creek.	Y	Cleaned Up (specify below)	Staff washed down and vacuumed affected areas.	Staff washed down and vacuumed affected areas.	Other (specify below)	Sewer line has placed on six-month hydro high frequency Maintenace program. # 1581556	Sewer line has placed on six-month hydro high frequency Maintenace program. # 1581556	Sewer line has placed on six-month hydro high frequency Maintenace program. # 1581556	02/13/2025 04:40	High volume of water was the cause of the spill.	N			Lion Creek	Stream/Creek		Creek.	None.	Other (specify below)	None.	N/A	0	N	N												
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	899728	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	16-FEB-25	27-FEB-25	27-FEB-25	Category 1 Spill	2550 Church Street, Oakland Ca	02/13/2025 02:51	02/13/2025 05:33	02/13/2025 02:51	02/13/2025 06:16	25-0792		Manhole was overflowing at the public sidewalk. 	37.76879	-122.17855	Manhole			1001	Manhole was overflowing at the public sidewalk. The sewage was flowing at the curb and gutter and to the nearest storm drain inlet.	Y	12  underground storm drainpipe.	0	1001	Arroyo Viejo creek.	1001	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		Manhole was overflowing at the public sidewalk. Sewage spilled into storm inlet that leads to Arroyo Viejo Creek.	Y	37.76907	-122.17777							02/13/2025 09:30	1  Diameter pick hole x 2  Height = 2.51 GPM 399 Minutes x 2.51 GPM = 1001 gallons total.	Start time was based on responding crew clearing grease blockage.	Fats, Oil and Grease (FOG)		Gravity Mainline		Other (specify below)	PE	31	Manhole was overflowing at the public sidewalk. Sewage spilled into storm inlet that leads to Arroyo Viejo Creek. One thousand and one gallons spilled onto the street curb and gutter into a storm inlet.	Y	Restored Flow		Staff restored flow. Staff washed down and vacuumed affected areas.	Added Sewer to Preventive Maintenance Program		Staff added line to the 3-month hydro flushing preventative maintenance cleaning. W.O. 1584897.	Staff added line to the 3-month hydro flushing preventative maintenance cleaning. W.O. 1584897.	02/13/2025 09:30	Manhole was overflowing at the public sidewalk. Sewage spilled into storm inlet that leads to Arroyo Viejo Creek. One thousand and one gallons spilled onto the street curb and gutter into a storm inlet.	N			Arroyo Viejo Creek	Stream/Creek		Creek.	None.	Other (specify below)	N/A	N/A	0	N	N												
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	899729	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	16-FEB-25	27-FEB-25	27-FEB-25	Category 1 Spill	3726 Fruitvale Avenue, Oakland Ca	02/13/2025 10:20	02/13/2025 11:31	02/13/2025 10:05	02/14/2025 11:02	25-0837		Manhole overflowing in the street.	37.80332	-122.21499	Manhole			11000	Manhole was overflowing in the street, the sewage was flowing to the nearest storm drain inlet.	Y	10  underground storm pipe that flows to Sausal creek.	0	11000	10  underground storm pipe that flows to Sausal creek.	11000	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		Eleven thousand gallons spilled from a 12  VCP into a storm inlet that leads to Sausal Creek.	Y	37.80318	-122.21466							02/13/2025 13:45	220 min x 50 GPM = 11,000 GAL.	 Responding crew verified spill had stopped on follow inspection.	Other (specify below)	Sewer pipe was inundated with storm water. Pipe could not accommodate water volume during rainYstorm.	Gravity Mainline		Vitrified Clay		125	Eleven thousand gallons spilled from a 12  VCP into a storm inlet that leads to Sausal Creek.	Y	Other (specify below)	Heavy Rainstorm washed down affected areas. Unable to contain.	Staff washed down and vacuumed affected areas.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		There was no corrective action taken because the overflow was caused by the rainstorm. 	There was no corrective action taken because the overflow was caused by the rainstorm.	02/13/2025 09:30	CCTV report did not find any obstructions that caused the overflow. The pipe could accommodate the volume of water.	N			Sausal Creek	Stream/Creek		Sausal Creek	None.	Other (specify below)	None.	N/A	0	N	N												
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	899730	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	16-FEB-25	27-FEB-25	27-FEB-25	Category 2 Spill	7 Taurus Place, Oakland Ca	02/13/2025 16:45	02/13/2025 17:51	02/16/2025 16:42	02/13/2025 19:45	25-0822		Manhole in back yard easement was overflowing on unpaved soil on the hillside.	37.84288	-122.217	Manhole			3600	Manhole in back yard easement was overflowing on unpaved soil on the hillside.	N						0	Other (specify below); Unpaved Surface	Thirty-six hundred gallons overflowed from a manhole on an easement into the soil. Rocks and mud were the cause of the spill.	Thirty-six hundred gallons overflowed from a manhole on an easement into the soil. Rocks and mud were the cause of the spill.	Y	37.84281	-122.21681							02/13/2025 10:42	360 min x 10 GPM = 3,600 Gal	End time was based on responding crew clearing the blockage.	Other (specify below)	Sewer pipe was obstructed with rock and mud.	Gravity Mainline		Cross-Linked Polyethylene (PEX)		33	Thirty-six hundred gallons overflowed from a manhole on an easement into the soil. Rocks and mud were the cause of the spill. 	Y	Restored Flow		Due to a heavy rain fall, spilled soaked into the soil. 	Added Sewer to Preventive Maintenance Program; Post Spill CCTV	Sewer main was placed on six-month hydro high frequency program # 1597614.	Sewer main was placed on six-month hydro high frequency program # 1597614.	Sewer main was placed on six-month hydro high frequency program # 1597614.	02/19/2025 11:12	CCTV inspection found the main sewer in fair condition, overflow was likely caused by a high volume of rainwater during the rainstorm. CCTV inspection found a hole in the mainline.	Y	CCTV inspection on upstream lines is being because rocks and mud infiltrated into the main sewer.	03/21/2025 15:30										N												CCTV inspection on upstream lines is being because rocks and mud infiltrated into the main sewer.	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	899735	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		11-MAR-25	11-MAR-25	Monthly Category 3 Spill	3063 West 8th Street	02/14/2025 23:51	02/15/2025 00:15	02/14/2025 23:51				The initial crew arrived at 12:15 AM. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Sewage coming out of a maintenance hole located at Berendo Street and 8th Street.	34.057792	-118.294112	Manhole			79	See attached	N		0				79	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	It was estimated that approximately 79 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently returned the entire amount to the sanitary sewer system. 	Y	34.057792	-118.294112							02/15/2025 00:30	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.	SPILL FLOWRATE AND VOLUME DETERMINATION BASED ON FLOWOUT PICKHOLE OR OPENING DIAMETER OF PICKHOLE OR OPENING 0.75 INCHES HEIGHT OF WATER OUT OF PICKHOLE/OPENING 1 INCHES FLOWRATE PER PICKOLE/OPENING (GPM) 2 GPM # OF PICKHOLES/OPENINGS 1 TOTAL FLOWRATE (GPM) 2 GPM DURATION OF SPILL (MINUTES) 39 MINUTES TOTAL FLOW (GALLONS) 79 GALLONS	Fats, Oil and Grease (FOG)		Gravity Mainline		Concrete		94	On Friday, February 14, 2025, at 11:51 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 3063 West 8th Street (634-A3). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased  on Saturday, February 15, 2025 at 12:30 AM. The cause of the blockage was attributed to Fats, Oil and Grease (FOG). All necessary clean-up was then performed.    It was estimated that approximately 79 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently returned the entire amount to the sanitary sewer system.     The Los Angeles County Department of Public Health was notified and determined that the overflow did not necessitate any beach closures. The sewer location where the backup occurred will be televised to determine t	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	On Monday, February 10, 2025 7:45 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 5801 West Wilshire Boulevard (TG 633-B2). A CWCD crew was immediately dispatched to the incident location and determined that 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 8:56 AM. The cause of the blockage was attributed to an object in the line. All necessary clean-up was then performed.  It was estimated that approximately 1616 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire amount was returned back to the systems.	On Friday, February 14, 2025, at 11:51 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 3063 West 8th Street (634-A3). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased  on Saturday, February 15, 2025 at 12:30 AM. The cause of the blockage was attributed to Fats, Oil and Grease (FOG). All necessary clean-up was then performed.    It was estimated that approximately 79 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently returned the entire amount to the sanitary sewer system.     The Los Angeles County Department of Public Health was notified and determined that the overflow did not necessitate any beach closures. The sewer location where the backup occurred will be televised to determine t	Adjusted Schedule/Method of Preventive Maintenance; Post Spill CCTV		As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.		02/15/2025 00:30	On Friday, February 14, 2025, at 11:51 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 3063 West 8th Street (634-A3). A CWCD crew was immediately dispatched to incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased  on Saturday, February 15, 2025 at 12:30 AM. The cause of the blockage was attributed to Fats, Oil and Grease (FOG). All necessary clean-up was then performed.  		Not at this time	02/15/2025 00:30														Not at this time	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	Not at this time	None At This Time.	Not at this time		On Monday, February 10, 2025 7:45 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 5801 West Wilshire Boulevard (TG 633-B2). A CWCD crew was immediately dispatched to the incident location and determined that 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 8:56 AM. The cause of the blockage was attributed to an object in the line. All necessary clean-up was then performed.  It was estimated that approximately 1616 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire amount was returned back to the systems. 	Not at this time	
2	2SSO10228	Active	Fair Oaks SMD	San Mateo County DPW	899751	1.2	Certified	Mark Chow	Principal Civil Engineer	18-FEB-25	28-FEB-25	28-FEB-25	Category 1 Spill	3001 Hoover Street	02/13/2025 08:20	02/13/2025 08:20	02/13/2025 07:50	02/13/2025 09:49	25-0797		The spill came out of a manhole, see photo under the Attachments tab.	37.486115	-122.199383	Manhole			1550	The spill came out of a manhole and flowed to the paved surface and street curb/gutter, then into a storm water catch basin that leads to surface water. The spill boundary could not be determined because it was raining that day and the surrounding area was wet from rain water.	Y	The storm water system transporting the spill leads into the bay.	0	1550	Storm drain, see photo under the Attachments tab.	1550	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		The spill came out of a manhole and flowed to the paved surface and street curb/gutter, then into a storm water catch basin that leads to surface water. The catch basin was 108 ft away from the manhole. 	Y	37.48635	-122.199156							02/13/2025 10:25	Eyeball estimation of flow rate was used to calculate total spill volume.	The spill start time was estimated based on when the crew discovered the spill. The spill end time was when the crew went to check the manhole and noticed the spill had stopped.	Other (specify below)	Downstream agency's trunk lines were backed up and holding water which caused our system to be overwhelmed.	Other (specify below)	Downstream agency's trunk lines were backed up and holding water which caused our system to be overwhelmed.	Vitrified Clay		94	The spill flowed to storm water catch basin that leads to the San Francisco Bay.	Y	Other (specify below)	Schedule meeting with downstream agency to discuss how to prevent reoccurrence of the spill.	Spill containment was not possible as the downstream agency's trunk lines were backed up and holding water which caused our system to be overwhelmed.	Other (specify below)	Schedule meeting with downstream agency to discuss how to prevent reoccurrence of the spill.	We are in the process of coordinating a meeting with the downstream agency to discuss this incident and understand the specifics of what had occurred to prevent reoccurrence of the spill.	Left a voicemail for downstream agency on 2/24/25 to request a meeting to discuss this incident. Sent a follow-up email to downstream agency on 2/28/25.	02/13/2025 10:25	The downstream agency flows to the wastewater treatment plant. The treatment plant was shut down to conduct scrubbing activities which caused backup in the downstream agency's trunk lines and our sewer system to be overwhelmed.	Y	We need to meet with downstream agency to understand the specifics of what had happened to prevent reoccurrence of the spill.	03/14/2025 00:00	San Francisco Bay	Other (specify below)	the bay	San Francisco Bay is a large body of water connecting to the Pacific Ocean.	Not applicable as the spill entered the storm drain system and not directly to a surface water.	Other (specify below)	There was no impact to public access.	Not applicable	0	N	N											We need to meet with downstream agency to understand the specifics of what had happened to prevent reoccurrence of the spill.	
2	2SSO10216	Active	West County WW District CS	West County Wastewater District	899754	1.3	Certified	Gordon Times	CSO Manager	18-FEB-25	03-MAR-25	03-MAR-25	Category 1 Spill	Hilltop Mall Rd.	02/15/2025 13:59	02/15/2025 14:47	02/15/2025 11:59				The spill came from a pick hole of a manhole.	37.98324	-122.32757	Force Main; Manhole			300	The spill was trickled out of a pick hole and ran down the street into a storm drain.	Y	The drainage conveyance system was a storm drain.	0	0	The storm drain leads to a city maintained lagoon.	300	0	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		The spill event destinations were from the overflowing manhole to the paved road, into the storm drain, and lastly in the lagoon.	Y	37.98302	-122.32632							02/15/2025 15:00	We used Central Sanitary District's overflow rate chart for new style lids with an open pick hole.	We gauged how much flow was coming out and how long we believed it was running to determine our estimate.	Other (specify below)	The spill was caused by a combination of a missing camlock cap gasket a which leaked as well as multiple ground water leaks in the manhole barrel.	Force Main		Polyvinyl Chloride (PVC)		4	The spill impacted the paved road, storm drain, and the lagoon.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		We arrived at the scene and immediately began recovering the spill with our Vactor. We called our lift station maintenance crew to come out to switch the flow from the line with the missing camlock cap gasket to the other that had one. Once we had the lines switched over, we washed out the manhole and the street with clean water which we recovered with the Vactor.	Other (specify below)	The missing gasket was replaced and the fresh water leaks were addressed.	The missing gasket was replaced and the fresh water leaks were addressed.	N/A	02/15/2025 09:45	We removed the camlock cap and discovered that it did not have a gasket. We replaced the gasket which resolved the leak.	N			Hilltop Lake	Lake		The Hilltop Lake is a lagoon that is fed by Garrity Creek and maintained by the City of Richmond.	N/A	Other (specify below)	There was no closure or restrictions to the lake.	N/A	0	N	N												
5S	5SSO11433	Active	City of Stockton MUD CS	Stockton City MUD	899755	1.1	Certified	Dagmara Saini	Program Manager III		03-MAR-25	03-MAR-25	Monthly Category 3 Spill	169 W FIFTH ST	12/04/2024 14:55	12/04/2024 15:07	12/04/2024 14:30				See Photos	37.93183	-121.28757	Gravity Mainline			352	Spill came from M/H and was captured in storm M/H.  The second appearance point spill was captured in the dirt alleyway.  see attachments	Y	Contained in storm manhole 	352				352	Drainage Conveyance System		Contained in storm MH at 168 W Fourth St	N									12/04/2024 16:00	We used a spill volume calculator based on the measurements of the spill captured in the curb and gutter. And any areas impacted by the spill. including the storm manhole.	The start and end time are based on the time the spill was reported and the time we were able to stop the spill.  The phone call was anonymous and there were no other witnesses.  	Debris-General; Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		124	None	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Used Hydro truck to clean and vacuum the impacted area of the spill.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		CCTV the main line and implement any repairs or adjustments to a PM (if applicable) that are needed.		12/04/2024 16:00	Hydro cleaning the main line the operator encountered multiple contributing to the reason why the main line plugged grease, roots, debris ,  		Has been completed 	12/04/2024 16:00														None	Added the Main Line to a yearly PM program	Added the Main Line to a yearly PM program	None	No repairs needed at this time	None	Added the Main Line to a yearly PM program, and is scheduled to begin 12-1-25  WO # 298692	Cleared the Main Line  to minimize the impacted area of the spill. Cleared the Lateral to minimize the impacted area of the spill. Used Hydro truck to clean and vacuum the impacted area of the spill.	Has been completed 	
2	2SSO10228	Active	Fair Oaks SMD	San Mateo County DPW	899756	1.2	Certified	Mark Chow	Principal Civil Engineer	18-FEB-25	28-FEB-25	28-FEB-25	Category 1 Spill	1081 8th Avenue	02/13/2025 08:14	02/13/2025 08:28	02/13/2025 07:44	02/13/2025 09:52	25-0798		The spill came out of a manhole, see photo under the Attachments tab.	37.484597	-122.194585	Manhole			4025	The spill came out of a manhole and flowed to the paved surface and street curb/gutter, then into a storm water catch basin that leads to surface water. The spill boundary could not be determined because it was raining that day and the surrounding area was wet from rain water.	Y	The storm water system transporting the spill leads into the bay.	0	4025	Storm drain, see photo under the Attachments tab.	4025	0	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		The spill came out of a manhole and flowed to the paved surface and street curb/gutter, then into a storm water catch basin that leads to surface water. The catch basin was 160 ft away from the manhole.	Y	37.484945	-122.194322							02/13/2025 10:25	Eyeball estimation of the flow rate was used to calculate the total spill volume.	The spill start time was estimated based on when office staff was first notified of the spill. The spill end time was when the crew went to check the manhole and noticed the spill had stopped.	Other (specify below)	Downstream agency's trunk lines were backed up and holding water which caused our system to be overwhelmed.	Other (specify below)	Downstream agency's trunk lines were backed up and holding water which caused our system to be overwhelmed.	Vitrified Clay		94	The spill flowed to storm water catch basin that leads to the San Francisco Bay.	Y	Other (specify below)	Schedule meeting with downstream agency to discuss how to prevent reoccurrence of the spill.	Spill containment was not possible as the downstream agency's trunk lines were backed up and holding water which caused our system to be overwhelmed.	Other (specify below)	Schedule meeting with downstream agency to discuss how to prevent reoccurrence of the spill.	We are in the process of coordinating a meeting with the downstream agency to discuss this incident and understand the specifics of what had occurred to prevent reoccurrence of the spill.	Left a voicemail for downstream agency on 2/24/25 to request a meeting to discuss this incident. Sent a follow-up email to downstream agency on 2/28/25.	02/13/2025 10:25	The downstream agency flows to the wastewater treatment plant. The treatment plant was shut down to conduct scrubbing activities which caused backup in the downstream agency's trunk lines and our sewer system to be overwhelmed.	Y	We need to meet with downstream agency to understand the specifics of what had happened to prevent reoccurrence of the spill.	03/14/2025 00:00	San Francisco Bay	Other (specify below)	the bay	San Francisco Bay is a large body of water connecting to the Pacific Ocean.	Not applicable as the spill entered the storm drain system and not directly to a surface water.	Other (specify below)	There was no impact to public access.	Not applicable	0	N	N											We need to meet with downstream agency to understand the specifics of what had happened to prevent reoccurrence of the spill.	
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	899781	1.2	Certified	Daniel Whitlock	Manager	19-FEB-25	03-MAR-25	03-MAR-25	Category 2 Spill	Marin and Indiana	02/13/2025 02:54	02/19/2025 03:25	02/19/2025 02:00				Intersection of Marin and Indiana from catch basins and manholes. 	37.74881	-122.239033	Manhole; Other (specify below)	Combined System Catch Basins		984000	N-49519 N-51468 N-51467 N-72061 N-345837 N-34064	N						984000	Other (specify below); Paved Surface	Combined system catch basins.	Intersection of Marin and Indiana flooded due to system at full capacity 	Y	37.74881	-122.39033							02/13/2025 16:05	H&H Hydraulics	Used N-72061, N-345837, and N-34064 in model.	Surcharged Pipe (Combined Collection System Only)	Rainfall exceeded capacity of the sewer.	Gravity Mainline		Other (specify below)	RCP	31	Flooded streets but no road closures or property damage.	Y	Cleaned Up (specify below); Other (specify below)	Returned all spill to combined sewer.	Posted signs, cleaned and washed down area and returned to the combined system.	Other (specify below)	N/A Rainfall exceeded capacity of the sewer.	N/A Rainfall exceeded capacity of the sewer	Spill Start: 2/13/2025 2:00 am Spill End 2/13/2025 4:05 pm Cleanup Start 2/21/2025 11:30 AM Cleanup End 2/21/2025 12:37 PM	02/21/2025 12:37	Rainfall exceeded capacity of the sewer due to heavy storms.	N												N													
2	2SSO10179	Active	San Jose City CS	San Jose City	899782	1.2	Certified	BINH TRAN	DIVISION MANAGER		07-MAR-25	07-MAR-25	Monthly Category 3 Spill	1621 Maurice Ln San Jose, CA 95129	01/23/2025 08:45	01/23/2025 09:45	01/23/2025 07:00				The appearance point was a sanitary manhole in front of the property at 1621 Maurice Ln in San Jose, CA.  A picture of the spill appearance point is included in the attachement tab 	37.29396114	-121.9978542	Manhole			395	The spill discharged from the sanitary manhole and traveled along the curb/gutter reaching a nearby storm catch basin. Upon crew arrival, crew set up Vaccon truck and cleared the plug stopping the overflow.  The contained the spill on the surface using sandbags. During the respoinse, the crew found sewage puddling into a storm main #1015 which crew cleared.  The spill did not reach the waterway.  Pictures and a map of the spill extent are included in the attachment tab. 	Y	The spill reached a nearby storm inlet # 1386.  The storm inlet is connected to the City of San Jose's municiple separate storm sewer system.  The sewage got contained in the storm main #1015 which the crew cleaned. 	205				205	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		The spill (sewage) traveled along the street and curb/gutter from the manhole (spill appearance point). The manhole is identified in 11.d. and 11.e. The spill reached and traveled along the curb and gutter, then entered City's storm inlet and drainage system. The location of the storm drain inlet is identified in 11.f and 11.g. The crew was able to determine a spill end point in the storm drain conveyance system and used sandbags for containment in the nearby storm manhole. Coordinates for the containment in the storm system manhole are identified in 11.h and 11.i. 	Y	37.29396114	-121.9978542	37.29499309	-121.9977134	37.29519011	-121.9986434			01/23/2025 10:38	The total and the recovered spill volume was estimated using measurements from the responding crew. On land, the crew recorded spill measurements along the curb/ gutter and on the asphalt.  In addition, the crew recorded spill depths within the storm drain conveyance system pipes from the inlet to the sandbag containment in storm drain manhole #1015 	The reporting party first noticed the spill on 1/23/2025 at 7:30. Based on the reporting party's information, and the field observation it was assumed that the SSO likely started sometime shortly before the reporting party saw the spill at 7:30 that day. The start time of the SSO is assumed to have started around 7:00 on 1/23/2025	Debris from Construction		Gravity Mainline		Vitrified Clay		64	No impact to the CSJ waterways as the spill was contained within MS4.  No lasting impact to street/curb and gutter where overflow occurred due to maintenance staff cleaning. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		 Upon arrival, the responding City crew immediately placed sandbags around the nearby storm drain inlet where the spill had entered. The crew tracked the spill in the storm drain conveyance system (MS4) and placed sandbags in a manhole where they could contain the spill. The crew cleared the blockage and observed the plug was caused by a caved in false bottom that was placed during the pavement construction to be the cause of the SSO. Next, the crew began their cleanup efforts on the street and curb/gutter. Crew used two combo trucks, one flushed water upstream and other vacuumed the water at the downstream containment in the storm drain manhole. All of the spill and induced water was cleaned up from both the land and storm drain conveyance system. Pictures of the containment locations were added to the Attachments Tab.  	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		 The sewer was immediately CCTV'd following the overflow event in order to determine the cause. Further corrective actions the city has planned for this segment include: 1. Discuss with the Pavement Team regarding ways to account all manholes are restored once pavement project is completed. That is removal of false bottoms and tracking of lowered manholes 2. Include the plug segment into this years root control project  		01/23/2025 15:00	While the Responding Crew cleared the blockage in the plugged sanitary mainline, the Crew documented their findings. Due to the manhole being buried based on the previous pavement project, the first responder made contact with pavement inspectors to restore manhole to grade.When they restored the manhole to existing condition the false bottom was revealed and removed.  After conducting a follow up CCTV of the sanitary mainline pipe, there was no major O&M observation or structural defects that may have contributed to the blockage. 		All investigation efforts concluded on 1/23/2025 	02/05/2025 15:30														NA	The city has planned the following O&M modifications to prevent any repeat of the spill event: 1. Add the plug segment to the root control list	NA	NA	NA	NA	NA	NA	All investigation efforts concluded on 1/23/2025 	
5S	5SSO11471	Active	Colonial Heights Maintenance District CS	San Joaquin Cnty DPW	899783	1.1	Certified	Ben Guzman	Superintendent		28-FEB-25	28-FEB-25	Monthly Category 3 Spill	Lamphole at 8010 Heather drive	01/13/2025 19:23	01/13/2025 20:00	01/13/2025 19:23				Lamp hole at 8010 Heather Dr	37.9577	-121.29078	Gravity Mainline		0	100	Catch basin approximately 80 feet from lamp hole	Y	Curb and gutter from lamp hole to storm water catch basin	100				100	Drainage Conveyance System that discharges to surface water; Paved Surface		Storm water catch basin on corner of San Diego and Heather Dr	N	38.02211	-121.33939							01/14/2025 02:45	Visual estimation based on flow and volumetric size of catch basin	Visual estimation based on flow and volumetric size of catch basin	Debris-wipes/Non-disposables; Root Intrusion		Gravity Mainline		Vitrified Clay		55	Flowed from lamp hole to storm water catch basin	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		First responder deployed spill kit and line stop at storm water catch basin. All overflow was cleaned up via vacuum truck	Adjusted Schedule/Method of Preventive Maintenance; Post Spill CCTV		 Rodded the main to clear roots, verified flow and with high pressure flushing		01/14/2025 02:45	Found root intrusion into main line, flushable wipes added to blockage		Camera inspection of mainline	01/21/2025 08:00														NA	Increase maintenance rodding and flushing of line	Increased service interval to bi-monthly until repairs can be made	Repair and replace main line where root intrusion occured	Inspected main line to find point of intrusion	Replacement of main line	Attached work order	Replaced spill kit on service truck	Camera inspection of mainline	
2	2SSO10114	Active	Sausalito City CS	Sausalito City	899551	2.1	Certified	Eric Andrew Graham	Sewer System Coordinator 	18-FEB-25	20-FEB-25	20-FEB-25	Category 1 Spill	2310 Marinship Way	02/05/2025 10:05	02/05/2025 10:17	02/05/2025 09:53				Manhole was backed up. When arrival on site, manhole water level was approx. 5  bellow rim grade. Area was wet  around manhole with some ponding. Hard to estimate considering the amount of rain the city received from the  storm on Feb 4, 2025. Lot of standing water throughout the city. It appears that sewage left the manhole and traveled approx. 300' NE to the SD inlet which led to a manhole then a vault then the bay.	37.86483	-122.49657	Manhole			202	Manhole was backed up. When arrival on site, manhole water level was approx. 5  bellow rim grade. Area was wet  around manhole with some ponding. Hard to estimate considering the amount of rain the city received from the  storm on Feb 4, 2025. Lot of standing water throughout the city. Appears that sewage left the manhole and traveled approx. 300' NE to the SD inlet which led to a manhole then a vault then the bay.	Y	Drainage system is considered private. Spill traveled NE along parking stalls rounded a corner and entered a drainage system. The drainage inlet system connects to a SD Manhole at approx. 25'  with combined flows from multiple flows. Travels NE Approx. 30' to a vault then travels an additional 300' NE and discharges into Richardson Bay.	50	10	Sewage left the manhole and traveled approx. 300' NE to the SD inlet which led to a manhole then a vault then the bay.	22	180	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		SSO reached a private storm drain that discharges into Richardson Bay. With the amount of flows within the drain with natural waterflow, It is very likely the SSO reached the bay. 	Y	37.86481	-122.49659	37.86542	-122.4959	37.86606	-122.49498			02/05/2025 10:17	Spill volume was determined by area volume calculations. Eyeball method was also used. 	Spill start time was determined by interviewing the reporting party and city staff that were doing maintenance in the park that morning. The reporting party walks the property multiple times a day and reported the incident as soon as they noticed it. after interviews, an approx. start time has been determined.	Debris-Rags; Other (specify below)	Public Restroom is connected to this line. Historical problems with this area due to vandalism before and during homeless encampment. Parks been closed for some time but recently re-opened. Earlier this week, (2/3/25) the bathrooms were backed up with a blockage inside the bathroom. I had  this mainline cleaned that day. I find it suspect that the line backed up a few days later. 	Gravity Mainline		Vitrified Clay		60	Impacted drainage channel between parking stalls and street. Impacted walkway slope from sidewalk to street. Impact to storm drainage system and potentially Richardson Bay.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Verified that we had a SSO. Evidence of discharge was likely. Opened the manhole and observed the manhole was approx. 5  from breaching. Called a contractor that was already in the city working for the city to bring their combo truck over. I picked up the city's combo truck and immediately set the truck up in the storm drain the SSO had entered. Contractor showed up and opened up the mainline. Contractor started cleaning the roadway with their combo truck towards where the city was set up protecting the storm drain. As this was happening, City staff proceeded to pull all water back to the combo truck wit a flusher nozzle.  after contractor had fully cleaned up the roadway, they were instructed to run the storm drain line and vacuum out all remaining potentially contaminated water with flusher truck.  	Post Spill CCTV		Area added to frequent inspection list.	Scheduling a Post CCTV inspection. 	02/05/2025 12:23	Manhole was backed up. While using a combo truck, It was noticed that a soft stoppage was felt roughly 59' downstream of the manhole. Downstream was not accessible due to a blind connection to Sausalito Marin City Sanitary District interceptor line. Utilizing combo trich to pull any debris back upstream to the manhole, Nothing out of the ordinary was observed.	N			Richardson Bay	Other (specify below)	Richardson Bay	Bay 	unknown	Other (specify below)	Reported incident to Marin Environmental Health department. Due to the small amount of discharge to the bay, Signs / closures, and  samples were not required.  	N/A	0	N	N												
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	899797	1.2	Certified	Daniel Whitlock	Manager	20-FEB-25	12-MAR-25	12-MAR-25	Category 2 Spill	Mile Rock	02/18/2025 08:41	02/18/2025 09:40	02/13/2025 02:40				Spill originated from an access hatch / Manhole that was removed in an act of vandalism. Access hatch is on hillside next to great highway . See GPS coordinates below. 	37.7769	-122.51157	Manhole			2560000	N-37812 , Flowed down dirt hill , onto paved surface , flowed down east side of Great highway and into combined catch basins on Balboa st . Assets ( N-48188 & N-46095 ) 	N						2560000	Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		Spill exited Transport storage box on hill , flowed down unpaved area to the east side of the road and down to Balboa Combined catch basins. 	Y	37.77694	-122.51206	37.7764	-122.51153	37.77562	-122.51094	37.7751	-122.5112	02/13/2025 04:55	SFPUC�s hydraulic and hydrologic (H&H) model. 	SFPUC�s hydraulic and hydrologic (H&H) model. 	Other (specify below); Surcharged Pipe (Combined Collection System Only)	Vandalism removed cover on hatch to mile rock . System pressurized during rain event and created the spill. 	Other (specify below)	Transport Storage box P-101048 / Cover asset # N-37812	Concrete		32	No road closures or property damage.	Y	Other (specify below)	None initially . We were notified of this a week after spill likely occurred. Clean up of general trash in the area was completed on 3/7/25	There was no typical spill to cleanup up when field crew dispatched to location. Clean up of general trash in the area was completed on 3/7/25	Other (specify below)	Cover was replaced and reinforced . Suitable replacement that is more  resilient to vandalism is being sought for purchase. 	New cover and redesign of the gasket is underway . As of now there is daily checks on the access point so overlooking vandalism should be reduced significantly. 	Hatch reinstalled and reinforced on 2/18/25. New cover and redesign of the gasket is underway . As of now there is daily checks on the access point so overlooking vandalism should be reduced significantly. 	03/07/2025 14:00	Vandalism was found to be cause	N												Y													
4	4SSO10370	Active	Beverly Hills City CS	Beverly Hills City DPW	899826	1.2	Certified	Josette Descalzo	Environmental Compliance Manager		27-MAR-25	27-MAR-25	Monthly Category 3 Spill	San Ysidro/Tower Rd	02/20/2025 15:13	02/20/2025 15:25	02/20/2025 15:13				Residential area in Beverly Hills. Overflow occurred on pickhole of the maintenance hole.    See Attachment: SSO Photo Summary	34.08639	-118.42256	Manhole			800	The spill occurred on a manhole on a residential area in Beverly Hills. Spill volume was spread through the street and recovered in the catch basin.   See Attachment: SSO Photo Summary	Y	Spill spread on the streets and catch basin.  Approximately, 300 gallons were spread in the street and curb and approximately 500 gallons on the catch basin. 	500				800	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		Residential area in Beverly Hills. Spill spread on street/curb and gutter and catch basin. Coordinates of the spill destination is below 	Y	34.08634	-118.42257	34.08579	-118.42254					02/20/2025 15:45	Spill volume calculated using the City of San Diego Metropolitan Wastewater Department SSO Reference sheet using the amount of volume coming out of pickhole of the manhole. 	Spill start time was determined upon receiving the call of sewer spill and spill end time was calculated when the sewer spill ended. 	Debris from Lateral; Other (specify below)	Roots coming out from a private lateral connection. 	Gravity Mainline		Vitrified Clay		82	No impact. No residential or vehicular impact to the spill.  Streets and curb were washed and cleaned. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	Performed post spill CCTV inspection and contact resident who has root intrusion on their private lateral. 	Staff responded within 10 minutes of the call. Staff set-up catch basin containment and broke the sewer stoppage. Staff cleaned the streets and recovered flow from a catch basin downstream. Approximately 500 gallons was recovered from the catch basin. 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Post Spill CCTV	Main is already in an annual maintenance schedule. Contacted resident to inform them of the root intrusion on their lateral. 	Sewer main is already in annual maintenance schedule. Historically, there's been no problem in the sewer main.   A post spill CCTV inspection revealed that roots intrusion occurred at the private lateral connection point. City staff removed the root protruding and informed property owner of the root issue on their lateral.  City will be coordinating a lateral cleaning schedule with the property owner. 		02/20/2025 17:00	CCTV post-inspection was completed on 2/21/2025.  Inspection determined that root intrusion from a private lateral  caused the sewer spill.  The root intrusion was removed from the sewer main. Staff is attempting to contact property owner to inform them the urgency to maintain their sewer lateral in coordination with the City.  		Completed CCTV post-inspection on 2/21/2025.  Since the root intrusion occurred from a private lateral, City is coordinating with property owner to clean their laterals. 	02/28/2025 14:30														Not Applicable. 	City will be completing CCTV inspection of arterial main lines and lateral connection condition.  If lateral connections are blocked, the City will be notifying property owners to clean their blockage and coordinating the cleaning to prevent downstream sewer overflow. 	The City will put this mainline in a semi-annual cleaning schedule and CCTV inspection.	The sewer main is in good condition. The sewer main is plastic lined and is good condition. 	The sewer main was lined in 2011 and the liner is still in very good condition. 	Not applicable. 	Maintenance work orders are attached and CCTV inspection 	Standard spill response were performed:  1. Containment 2. Spill recovery  3. Cleaning  4. CCTV post-inspection  5. Residential follow-up coordination 	Completed CCTV post-inspection on 2/21/2025.  Since the root intrusion occurred from a private lateral, City is coordinating with property owner to clean their laterals. 	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	899861	1.4	Certified	Ameal McLaurin	Sewer Supervisor 2		04-MAR-25	04-MAR-25	Monthly Category 3 Spill	6224 Swainland Avenue, Oakland Ca	02/14/2025 11:00	02/14/2025 15:30	02/14/2025 17:30				Manhole in the back easement at 8060 Broadway Terrace was overflowing.	37.84309	-122.21732	Manhole			420	Manhole in the back easement at 8060 Broadway Terrace was overflowing, the sewage was flowing into the rear of the property of 6224 Swainland Avenue on unpaved surface, where it was soaking into the soil.	N						0	Unpaved Surface		Manhole in the back easement at 8060 Broadway Terrace was overflowing, the sewage was flowing into the rear of the property of 6224 Swainland Avenue on unpaved surface, where it was soaking into the soil.										02/14/2025 17:30	420 minutes x 1GPM = 420 gallons	Start time was based on eyewitness account. The end time was based on responding sewer crew restoring the flow in the mainline.	Debris from Construction		Gravity Mainline		Polyvinyl Chloride (PVC)		33	Manhole in the back easement at 8060 Broadway Terrace was overflowing, the sewage was flowing into the rear of the property of 6224 Swainland Avenue on unpaved surface, where it was soaking into the soil.	N	Property Owner Notified; Restored Flow		Sewer staff cleaned the affected areas in the rear easement and the back yard of the property. A claim packet was provided to owner to have a restoration company to do a cleanup.	Added Sewer to Preventive Maintenance Program; Post Spill CCTV		 The rocks and dirt were flowed on the upstream mainline. The investigation hasn't been completed.		02/15/2025 13:30	The rocks and dirt flowed from the upstream mainline. The investigation hasn't been completed. Spot repair to remove concrete from the mainline W.O.#1581117 was created on 12/20/24.		The rocks and dirt flowed from the upstream mainline. The investigation hasn't been completed. Spot repair to remove concrete from the mainline W.O.#1581117 was created on 12/20/24.	02/28/2025 09:10														N/A	 The rocks and dirt were flowed on the upstream mainline. The investigation hasn't been completed. Spot repair to remove concrete from the mainline W.O.#1581117 was created on 12/20/24.	Mainline has been placed on a 3 -month hydro, W.O. #1583700.	N/A	The rocks and dirt were flowed on the upstream mainline. The investigation hasn't been completed. Spot repair to remove concrete from the mainline W.O.#1581117 was created on 12/20/24.	N/A	The rocks and dirt flowed from the upstream mainline. The investigation hasn't been completed. Spot repair to remove concrete from the mainline W.O.#1581117 was created on 12/20/24.	The rocks and dirt were flowed on the upstream mainline. The investigation hasn't been completed. Spot repair to remove concrete from the mainline W.O.#1581117 was created on 12/20/24.	The rocks and dirt flowed from the upstream mainline. The investigation hasn't been completed. Spot repair to remove concrete from the mainline W.O.#1581117 was created on 12/20/24.	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	899870	1.2	Certified	John J. Hough	San Dist M&O Superintendent	24-FEB-25	03-MAR-25	03-MAR-25	Category 1 Spill	356103	02/19/2025 13:31	02/19/2025 14:05	02/17/2025 14:00				See Attached Spill map with Photos.	38.7064	-121.2599	Lateral Clean Out (Public)			240	See Attached Spill Map with Photos	Y	See Attached Spill map with Photos.	78	0	See Attached Spill map with Photos	150	85	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		See attached Spill Map with Photos.	Y	38.7064	-121.2599	38.7065	-121.2598	38.7075	-121.2599	38.707	-121.2625	02/19/2025 14:05	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Fats, Oil and Grease (FOG)		Lower Lateral		Acrylonitr. Butadiene Styrene (ABS); Vitrified Clay		50	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified the City of Citrus Heights	See Attached Description of Spill Event	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected the lower lateral with CCTV on February 19, 2025. Based on the findings, SacSewer will adjust the preventative maintenance schedule from a 24-month frequency to a 12-month frequency.	SacSewer adjusted the preventative maintenance schedule on February 27, 2025.	02/19/2025 19:40	See Attached Description of Spill Event	N			Unnamed Tributary to Cripple Creek	Stream/Creek		Earthen creek with moderate flows.	No observed impacts to aquatic life	Other (specify below)	No public access impact.	N/A	0	N	N												
5S	5SSO10901-C	Active	City of Sacramento Combined CS	Sacramento City	899879	1.2	Certified	Kevin Guerra	Superintendent		25-FEB-25	25-FEB-25	Monthly Category 3 Spill	4422 Y Street Sacramento, Ca. 95817	01/16/2025 09:59	01/16/2025 12:22	01/16/2025 09:59				The appearance points were located on the wastewater combined sewer system. The spill appeared at two manholes located in the street, and returned to the sewer system through drain inlets tied into a different combined main segment.	38.55209	-121.45421	Manhole		There were two Manholes on Y street that had overflowed onto the street.	220	The spill was located in the street and ran to the gutter pans to the North and South and then into Combined System Drain inlets that were located in between the two appearance points.. 	N						220	Other (specify below); Paved Surface; Street/Curb and Gutter (2 3)	Combined Wastewater Drain Inlet	The spill had two appearance points, both were manholes located upstream  in sequence with the plugged main . The spill went North and South from the manholes and ran to the gutter pan and traveled East and West to  Drain Inlets that were tied into a different part of the combined system.	Y	38.55197	-121.45412	38.55299	-121.45492					01/16/2025 12:55	The spill was calculated by measuring the multiple spill areas and depths on the ground  before it returned to the combined system through drain inlets. We then converted it into gallons and added them together.	We used the notification time as the spill start time due to not finding a witness that saw it before it was called it in to us. Our responder documented the time they unplugged the main that caused the spill, this is the time used for the end of the spill. 	Root Intrusion		Gravity Mainline		Vitrified Clay		102	The spill did not impact the environment nor service to any customers.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		The responder chose to chase down and unplug the main after getting pictures of the appearance points. The reason for this was the spill and the drains were all located  in the combined system. The spill area was cleaned up by washing everything into the drain inlets the spill had traveled to.	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV; Repaired Facilities or Replaced Defect		The main has been repaired and will be rodded to remove the roots that caused the spill		01/16/2025 13:25	After review it was determined that the main had an area that was in need of repairs. It had cracks and fractures that allowed root intrusion, we determined this was the cause of the spill. Other joints had minor root intrusion as well, after repairs were made the main was scheduled to be rodded. to remove the remaining roots.		N/A	01/23/2025 12:51														N/A	N/A	N/A	N/A	There was a repair made to stop the root intrusion coming in through a cracked portion of the main.	N/A	N/A	N/A	N/A	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	899880	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2		04-MAR-25	04-MAR-25	Monthly Category 3 Spill	70 Yosemite Avenue, Oakland Ca	02/17/2025 15:19	02/17/2025 18:30	02/17/2025 13:21				Sewage was overflowing in the lower floor car garage of the building/structure.	37.82284	-122.25394	Inside Building or Structure; Lateral Clean Out (Private)			316	Sewage was overflowing in the lower floor car garage of the building/structure. A very small amount of sewage spilled from the lateral clean-out (private) onto unpaved surface.	N						0	Building or Structure		Sewage was overflowing in the lower floor car garage of the building/structure.										02/17/2025 19:00	Calculated volumes: 24'L x 17'W x .03'D x 7.48-gal = 92 gallons 42'L x 20'W x .03'D x 7.48-gal = 188 gallons 32'L x 5'W x.03D x 7.48-gal = 36 gallons Total spill: 92 + 188 + 31 = 316 gallons	Start time was based on eyewitness account. The end time was based on responding sewer crew restoring the flow in the mainline.	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		125	Sewage was overflowing in the lower floor car garage of the building/structure. A very small amount spilled from the lateral clean-out (private).	N	Other Enforcement Agency Notified; Property Owner Notified; Restored Flow	 A claim packet was provided to property owner for a restoration company to do the cleanup and recovery of the spill.	 A claim packet was provided to property owner for a restoration company to do the cleanup and recovery of the spill.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Mainline has been placed on 3-month hydro high frequency maintenance program. W.O #1596534.		02/24/2025 11:30	CCTV inspection W.O. # 1596331 found the mainline in fair condition. Inspection found wipes and grease deposition (FOG) to had been the cause of the blockage in the mainline.		N/A	02/24/2025 11:30														N/A	Mainline has been placed on 3-month hydro high frequency maintenance program. W.O #1596534.	Mainline has been placed on 3-month hydro high frequency maintenance program. W.O #1596534.	N/A	CCTV inspection W.O. # 1596331 found the mainline in fair condition. Inspection found wipes and grease deposition (FOG) to had been the cause of the blockage in the mainline.	N/A	Mainline has been placed on 3-month hydro high frequency maintenance program. W.O #1596534.	Mainline has been placed on 3-month hydro high frequency maintenance program. W.O #1596534.	N/A	
4	4SSO10439	Active	Torrance City CS	Torrance City	899882	1.1	Certified	Michael Woolsey	Public Works Supervisor		24-FEB-25	24-FEB-25	Monthly Category 3 Spill	5434 riviera way	02/21/2025 17:50	02/21/2025 18:00	02/21/2025 17:40				sss out of manhole in front of 5434 riviera way, torrance  33.81062 -118.37247 pg.93 sec.3 manhole #7	33.81062	-118.37247	Manhole			50	sss out of manhole	N						50	Paved Surface		was contained to paved surface, partial plug in sewer main, restored flow washed down street , returned to sewer main	Y	33.81062	-118.37247							02/21/2025 18:10	Visual bmp	Visual bmp	Root Intrusion		Gravity Mainline		Vitrified Clay		50	raw sewage in roadway	N	Cleaned Up (specify below); Restored Flow	will CCTV line	Restored flow, washed down and vactor up and return to sewer	Post Spill CCTV		CCTV, on a yealy maintenance schedule, will make further recommendations per video inspect		02/24/2025 13:57	Root intrusion		cctv	02/25/2025 14:08														LA County health notified #4146229	n/a	n/a	n/a	n/a	n/a	n/a	n/a	cctv	
4	4SSO10418	Active	Pomona City CS	Pomona City	899886	1.3	Certified	Romell Eutsey	Wastewater System Supervisor		25-FEB-25	25-FEB-25	Monthly Category 3 Spill	1317 N. Dudley St Pomona Ca. 91768	02/23/2025 12:40	02/23/2025 13:30	02/23/2025 11:00				The spill originated in City of Pomona Sewer main FB199-7 and discharged through the private sewer lateral at 1317 N. Dudley St. and bathroom shower at 1323 N. Dudley St.	34.07066	-117.77904	Inside Building or Structure; Lateral Clean Out (Private)	NA	NA	400	The extent of the sewer spill was on the property of 1317 N. Dudley St. in the back yard of the property. There was also a small amount in bathroom of 1323 N. Dudley St.	N						200	Building or Structure; Paved Surface; Unpaved Surface	NA	Full spread and reach of the spill was the back yard of 1317 N. Dudley St and the bathroom floor of 1323 N. Dudley St.	Y	34.07065	-117.77919							02/23/2025 14:10	Measured volume of the sewage on the ground and Eyeball method of how much of the spill was recovered. 	Asked homeowner when he first noticed a problem with plumbing or a backup with his sewer lateral regarding the spill start time. The spill end was calculated when the operator cleared the blockage in sewer main FB199-7. 	Debris-General; Debris-Rags; Fats, Oil and Grease (FOG)	NA	Gravity Mainline		Vitrified Clay	NA	70	Sewage and toilet paper spilled out of the private lateral cleanout located in the back yard of 1317 N. Dudley St., and spill also discharged out of the shower located at 1323 N. Dudley.	N	Cleaned Up (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Cleaned up driveway, patio and planters at 1317 N. Dudley St. and bathroom floor at 1323 N. Dudley St.	Staff arrived on scene and assessed the situation, took photos, and ensured the spill was contained not going into a storm drain. Staff then proceeded to hydro jet sewer main FB199-7 until the blockage was cleared. Immediately following staff cleaned up all remaining sewage located in the back yard of 1317 N. Dudley and vacuumed any additional spill remnants as well on the property of 1317 N. Dudley St. and 1323 N. Dudley St. After the clean up on site staff decanted all liquids vacuumed into our sewer main.	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Spill corrective actions include adding sewer main FB199-7 to the high frequency/hotspot list to be hydro jetted monthly. Staff were also instructed to video inspect upstream of the blockage and downstream of the blockage to ensure that there are no additional issues or concerns with our sewer main.		02/23/2025 18:45	After hydro jetting and video inspecting sewer main FB199-7 the sewer blockage was caused by Fog, debris, and rags approximately 80' upstream of sewer manhole H15-1305.		Staff are continuing to video inspect our sewer drainage area upstream and downstream of this sewer spill to ensure there are no additional concerns or issues with our infrastructure such as debris, FOG, and rags within our sewer mains that could cause a blockage or surcharge.	02/23/2025 18:45														NA	Sewer mainline segment FB199-7 has been placed on our high frequency/ hotspot list to be hydro jetted monthly. We also plan on adding a SmartCover level sensor to the manhole H15-1304 in efforts to receive a high-level alert if there is another blockage or surcharge in our sewer main. 	Sewer main FB199-7 has been added to the high frequency/hotspot list to be cleaned monthly.	No planned rehabilitation or replacement of sanitary sewer asset FB199-7.	Wastewater Staff conducted a full Naasco, PACP CCTV inspection of sewer main FB199-7 and found no additional issues or structural pipe concerns.	Sewer mainline FB199-7 will not be added to our upcoming capital project list.	Documented on City of Pomona GIS/Fieldmaps system.	Staff responded to the call of this sewer spill in a prompt matter. We had a tailgate meeting following the spill on the next workday discussing any concerns or comments regarding spill response activities. There were no deficiencies found.	Staff are continuing to video inspect our sewer drainage area upstream and downstream of this sewer spill to ensure there are no additional concerns or issues with our infrastructure such as debris, FOG, and rags within our sewer mains that could cause a blockage or surcharge.	
4	4SSO11368	Active	West Hollywood CS	West Hollywood City	899895	1.2	Certified	Eric Liu	Civil Engineer	24-FEB-25	26-FEB-25	26-FEB-25	Category 1 Spill	1529-0229 (1200 North Olive Drive, West Hollywood, CA)	02/13/2025 17:45	02/13/2025 19:30	02/13/2025 17:30	02/13/2025 20:40	25-0825		CSMD Map Sheet No. 1529 Overflowing Manhole No. 229 Lateral clean-out in parking structure at 1200 North Olive Drive, West Hollywood MMS No. 9218785	34.09159	118.37395	Inside Building or Structure; Manhole			8000	Sewage discharged from Manhole No. 229 into catch basin and lateral clean-out in parking structure at 1200 North Olive Drive.	Y	Catch basin at Santa Monica Boulevard and Croft Avenue	0	7500	Sewage discharged from sewer Manhole No. 229 into a catch basin and lateral clean-out located within the parking structure at 1200 North Olive Drive. The catch basin connects to the city's storm drain system, which leads to Ballona Creek and eventually empties into Santa Monica Bay and Pacific Ocean. 	7500	500	Building or Structure; Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Sewage discharged from sewer Manhole No. 229 into a catch basin and lateral clean-out located within the parking structure at 1200 North Olive Drive. The catch basin connects to the city's storm drain system, which leads to Ballona Creek and eventually empties into Santa Monica Bay and Pacific Ocean. 	N									02/13/2025 20:00	CWEA SSCSC Manhole Overflow Gauge and 50 gallons per minute	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops. 	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline; Other (specify below)	Lateral Clean-Out 	Vitrified Clay		99	Sewage discharged from sewer Manhole No. 229 into a catch basin and lateral clean-out located within the parking structure at 1200 North Olive Drive. The catch basin connects to the city's storm drain system, which leads to Ballona Creek and eventually empties into Santa Monica Bay and Pacific Ocean. 	N	Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow		Rodder and Hydro equipment's were used to break down the mainline root and grease blockage. Five hundred gallons of sewage in the parking structure were contained and pumped back into the sewer system by the resident's plumber. The 7,500 gallons discharged into the catch basin were unrecoverable due to the heavy rain. 	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Hydro Sewer-Periodic Cleaning-1 Section	90 days	02/13/2025 22:00	Heavy roots and grease.	N			Ballona Creek	Stream/Creek		Ballona Creek	N/A	Other (specify below)	N/A	N/A	0	N	N												
6A	6SSO11117	Active	Susanville Sanitary District CS	Susanville SD	899898	1.2	Certified	CASEY WILLIAMS	Operations Superintendent	25-FEB-25	25-FEB-25	25-FEB-25	Category 1 Spill	155 Alexander Ave	02/24/2025 12:55	02/24/2025 01:00	02/24/2025 12:45				See attachment description	40.41376	-120.65153	Manhole			70	Parked truck on top of  m-h 0-19 on Alexander ave until Vactor arrived stopping flow. Spill was on Pavement, Gutter and storm drain. See attachment descriptions	Y	Street, Gutter, and storm drain	20	0	Approx 50 Galllons had reached the Susan River from a storm drain See attachment descriptions	50	20	Surface Water	50 gals to river	on page 1	Y	40.41376	-120.65153							02/24/2025 13:00	eyeball method	from time first call 	Fats, Oil and Grease (FOG)		Gravity Mainline		Concrete		50	minimal impact as no solids were distributed to the river and the flows in the river were high.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow	20 gallons vacuumed	parked truck on manhole to stop flow immediatley upon arrival. Used vactor to clean up spill on street.	Added Sewer to Preventive Maintenance Program; Other (specify below)	cleared line with hydro flush	discussed hydro cleaning schedule	collection system master plan scheduled for 2025	02/24/2025 13:00	FOG was built up and cleared by hydro flush. no source identified	N			Susan River	River		river	none	Other (specify below)	little to no impact. High river flows with much debris flowing in the water	N/A	0	N	N												
4	4SSO10388	Active	Glendale City CS	Glendale City	899903	1.2	Certified	Roy Rodriguez	Wastewater Maintenance Superintendent	25-FEB-25	06-MAR-25	06-MAR-25	Category 1 Spill	1651 Ridgeview Dr. Glendale, CA 	02/24/2025 07:21	02/24/2025 07:35	02/24/2025 06:30	02/24/2025 10:00	25-0974		Spill originated at the sewer Manhole (MH) located on the street in front of the property at 1651 Ridgeview Dr.	34.17177	-118.25088	Manhole			2592	Spill discharged at the MH and traveled to the catch basin located at 1505 Campbell St.	Y	Spill entered CB ID 1743107, this CB leads to a 24  RCP storm drain main, this discharges to Verdugo Wash, which empties into LA River.	0	2214	 All of City of Glendale water shed discharges to LA River. Spill entered CB leads to a 24  RCP storm drain main, this discharges to Verdugo Wash, which empties into LA River.	2214	378	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		Spill entered a catch basin at 1505 Ridgeview Drive  ID'ed by Los Angeles Storm Drain System website as ID 1743107.	Y	34.17177	-118.25088							02/24/2025 08:06	 A flow rate of 33 gpm was used from a previous spill calculation from 1601 Ridgeview Drive  (dated 02/25/21).  A time fill study was conducted by filling the manhole with known volume and dividing it with the fill time. From the 33 gpm rate, a 6 gpm rate  was deducted to count for the approximate amount of water flowing through the blockage downstream.   A 27 gpm rate was established for this spill.  Total Spill Volume: 96 minutes x 27 gpm= 2,592 gals. Total Volume of Spill Recovered:  14 mins x 27 gpms= 378 gals. Spill Volume that reached the storm drain: 2,214 gals.	Wastewater crew was informed by Glendale Water and Power staff 7:52 am.   Glendale Water and Power Staff was notified by a resident driving by  through an  online reporting system at 6:54am.  The resident did not leave a name or number but  the SSO start time was  backed to 6:30 am as the start time.	Debris from Construction; Debris from Lateral		Other (specify below)	A piece of 6  liner was wedged inside MH# 070181.  The piece of liner trapped toilet paper and wipes causing the stoppage.	Vitrified Clay		67	Manhole # 070181 overflowed to the street and gutterline down to the catch basin at 1505 Ridgeview Drive.  A combo truck was set up to capture the spill.  See picture attachment	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Spilled occurred at manhole# 070181, overflowed to the street and gutter line entering the catch basin at 1505 Ridgeview Drive.  A vacuum truck was set up to contain the spill just above the catch basin on Ridgeview and Campbell.  LA County Flood Control was notified to try to capture the spill that went in the storm drain.	Inspected Sewer Using CCTV to Determine Cause		Post stoppage inspection was completed on 02/24/25, no defects were found in the sewer infrastructure near the spill vicinity.  A piece of 6  liner piece was removed from the MH# 070181 was wedged in and trapped wet wipes and toilet paper.	Post CCTV inspection upstream of the stoppage did not find any defects in the main line.  No maintenance adjustment or repair was needed.	02/24/2025 14:30	A piece of a 6  liner was found on the overflowing manhole.  The liner was wedge in the manhole trapping debris and towels.  Post CCTV inspection was done and no defects were found in nearby the sanitary system. 	N			Los Angeles River	River; Wash		Verdugo Wash (concrete structure carrying spill to LA River) LA River (Los Angeles watershed system)	Not observed.	Other (specify below)	Posted Sewage Clean-Up in progress signs in affected areas adjacent to the spill location.	City of Long Beach  Health Deprtment	0	N	N	N/A	N/A										
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	899905	1.3	Certified	John J Hough	San Dist M&O Superintendent	25-FEB-25	07-MAR-25	07-MAR-25	Category 2 Spill	356247	02/23/2025 13:37	02/23/2025 14:23	02/23/2025 11:30	02/23/2025 18:36	25-0966		See Attached Spill map with Photos.	38.4573	-121.3839	Manhole		Two SacSewer Manholes	1380	See Attached Spill Map with Photos 	Y	See Attached Spill map with Photos.	1359	0			1376	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		See attached Spill Map with Photos.	Y	38.45725	-121.38394	38.45737	-121.38389	38.45723	-121.38574	38.45743	-121.38581	02/23/2025 15:20	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Root Intrusion		Gravity Mainline		Vitrified Clay		23	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified Sacramento County Water Resources Drainage Operations and Maintenance.	See Attached Description of Spill Event	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		SacSewer inspected the main line with CCTV on February 24, 2025. Based on the findings, SacSewer will reinspect the main line within one year for preventative maintenance evaluation.	SacSewer is targeting February 2026 for reinspection and PM evaluation.	02/23/2025 21:30	See Attached Description of Spill Event	N												N													
2	2SSO10162	Active	Novato And Ignacio CS	Novato Sanitary District	899908	1.2	Certified	Jeff Andress	Collection Systems Superintendent	25-FEB-25	11-MAR-25	11-MAR-25	Category 1 Spill	498 Canyon Rd. 	02/21/2025 08:10	02/21/2025 08:00	02/21/2025 08:10				photographs uploaded. 	38.09693	-122.59084	Force Main			960	The spill occurred coming up from the edges of the asphalt outside of the pump station, one side ran to the edge of the road and out into a horse pasture where it went into the ground. The other side puddled up along the side of the road 40' down. There was evidence some of the spill ran into the V-ditch. 	Y	The spill ran from the edge of the asphalt, down the side of the road and into a V-ditch about 400 feet before reaching a storm drain. Could not follow the storm drain any further as it went through private property and into a pond on the horse ranch. 	0	300	it appears to be a 24  storm drain pipe. unable to access the property. No one around, and no trespassing signs around the property. Took some photos. 	300	30	Drainage Conveyance System that discharges to surface water		The spill appeared coming out from under the asphalt on both sides of the road. On the west side, the flow went to the V ditch after ponding up along the side of the road. On the east side of the road, the spill flowed off the edge of the road and into a grassy pasture on the horse ranch. The flow into the horse ranch soaked into the soil. The flow that was on the West side, after ponding, flowed into the V Ditch, which in turn flowed south to a storm drain approximately 450' down from the spill location. This then flows approximately 300' down to a pond on the horse ranch. 	Y	38.09694	-122.59078							02/21/2025 08:10	There was a short clip of the flows coming out from both sides of the street. It was estimated at a combined from both sides of the road flow rate of 10gpm. Using a SCADA report, it was determined there were 1.6 hours(96 mins) of run time from previous 24 hour period. 10 gpm x 96 mins = 960 Gallons. 	homeowner of the last residence on the road passes by our pump station several times a day. He did some improvements to the side of the road expanding the shoulder with new clean gravel. On Feb 20th, he called in a reported what looked like a leak to the district, and had not seen any wet spots or leaks previously. this call was approximately 24 hours prior to the collections crew first witnessing/discovery of the spill. 	Pipe Structural Problem/Failure - Controls		Force Main		Other (specify below)	4  HDPE	18	no visual impacts of the spill. everything on the surface was cleaned up. 	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow		Once the crew discovered the spill, the flushing crew was called to the site to help with the cleanup efforts. They began by vacuuming up all the spill and loose dirt on the surface. They then proceeded to vacuum out the wet-well to buy time while trying to coordinate the repair. They then began cleaning the surface by pressure washing the area. 	Repaired Facilities or Replaced Defect		Hired a contractor same day, dug up and located the leak. repaired the leak, tested for any other leaks, and backfilled and temp paved in the same day. 	Fully repaired and force main back in use. 	02/21/2025 15:40	It appeared to be due to a failure at the welded joint on the hdpe pipe. 	N			a private pond located on a horse ranch	Other (specify below)	pond located on a horse ranch. 	This was a body of water located about 250 feet away from the storm drain inlet along the side of the roadway. there were no flowing outlets to this pond at this time. 	zero visibly, v ditch was flowing due a recent rain event and diluted the spill contents that were estimated at approximately 	Other (specify below)	No public access. Located on private property. 	Marin County Environmental Health Department. 	0	N	N												
3	3SSO10332	Active	City of Morgan Hill CS	City of Morgan Hill	899920	1.1	Certified	Chris Ghione	Public Services Director		27-FEB-25	27-FEB-25	Monthly Category 3 Spill	80 W 1st St. 	02/12/2025 12:22	02/12/2025 12:38	02/08/2025 06:00				Spill appearance point was from a customer's Lateral that was uncapped. Sewer was partially plugged and did not affect any other homes. 	37.128581	121.655044	Lateral Clean Out (Private)			143	spill was contained in the crawl space opening next to the lateral. 	N		0				130	Unpaved Surface		Spill was intermittent, looked like it spilled during high flows only, there was only minimal solids visible  										02/12/2025 12:58	I used area volume. and best estimate of volume considering the clay soil resists absorption into the ground, there were only solids from the cleanout the depression and not the surrounding area  	I could not determine start time as the house was vacant, plumber called the contractor and reported the spilled sewage on 2/8/2025 at 8 am	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		45	Spill was contained in the crawl space area mostly outside the foundation and a small area just inside the crawl space	N	Cleaned Up (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Responded to the residence, observed standing sewage in hole next to clean out and foundation. there was no one at the property and house was empty. crew was already on the way, I checked manholes to see where the blockage was. Directed crew to flush the line to clear the blockage. after we cleared it I sent 2 guys to get a trash pump and we pumped out the small amount of sewage out of the hole. 	Post Spill CCTV		Cleaned the line and washed out affected manholes. CCTV showed no obvious defects 		02/12/2025 16:45	Cause was FOG buildup in old clay pipe 		N/A 	02/19/2025 14:31														N/A	N/A	N/A 	None planned 	N/A 	N/A 	N/A 	N/A 	N/A 	
4	4SSO10394	Active	Industry City CS	City of Industry	899925	1.1	Certified	Eric Liu	Civil Engineer		03-MAR-25	03-MAR-25	Category 1 Spill	2305-0656 (1100 Coiner Court, Industry, CA)	02/05/2025 12:15	02/05/2025 13:00	02/05/2025 11:00				CSMD Map Sheet No. 2305 MMS No. 9213870B Overflowing Manhole No. 656	33.99656	117.89459	Manhole			300	Approximately 300 gallons of gray water escaped the system, and entered a private storm drain at 1100 Coiner Court, Industry.  	Y	Approximately 300 gallons of gray water escaped the system, and entered a private storm drain at 1100 Coiner Court, Industry.	0	300	Sewage discharged from Manhole No. 656 into the private storm drain at 1100 Coiner Court, Industry, CA, which leads to San Jose Creek-Thompson Creek to U/S San Gabriel River. 	300	0	Drainage Conveyance System that discharges to surface water		Sewage discharged from Manhole No. 656 into the private storm drain at 1100 Coiner Court, Industry, CA, which leads to San Jose Creek-Thompson Creek to U/S San Gabriel River. 	Y	33.99656	-117.89459							02/05/2025 13:40	CWEA SSCSC Manhole Gauge	The start time is obtained from the reporting party, and the end time is determined when the crew clears the obstruction and the overflow stops. 	Damage by Others Not Related to Collection System Construction/Maintenance	A CSMD sewer mainline was damaged within Union Pacific Railroad (UPRR) right-of-way inside the City of Industry due to ongoing construction in the railroad right-of-way. 	Gravity Mainline		Vitrified Clay		37	Sewage discharged from Manhole No. 656 into the private storm drain at 1100 Coiner Court, Industry, CA, which leads to San Jose Creek-Thompson Creek to U/S San Gabriel River. 	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow		Upon arrival, manhole 656 was not overflowing but showed signs of a previous overflow. Hydro-jetted the mainline to break down a heavy grease stoppage. Notified all required agencies. 	Other (specify below)	This is an ongoing issue with Santa Fe Railroad and the Division is aware of breached mainline. Mainline will be repaired by San Gabriel Valley Council of Governments at 1333 Mayflower Ave #360, Monrovia, CA 91016.	N/A	N/A	02/05/2025 14:00	N/A	N			San Jose Creek-Thompson Creek to U/S San Gabriel River	River; Stream/Creek		Sewage discharged from Manhole No. 656 into the private storm drain at 1100 Coiner Court, Industry, CA, which leads to San Jose Creek-Thompson Creek to U/S San Gabriel River. 	No Impact.	Other (specify below)	No Impact.	N/A	0	N	N												
4	4SSO10370	Active	Beverly Hills City CS	Beverly Hills City DPW	899927	1.1	Certified	Josette Descalzo	Environmental Compliance Manager 		27-MAR-25	27-MAR-25	Monthly Category 3 Spill	830 Loma Vista Drive Beverly Hills, CA 90210	02/24/2025 09:30	02/24/2025 09:39	02/24/2025 09:30				The spill occurred on a manhole located in a residential area in Beverly Hills. 	34.08888	-118.4005	Manhole			527	The spill was contained on the street of the overflow. 	Y	The spill entered two catch basins downstream of the  overflow. The discharge was contained in the two catch basins. 	527				527	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		The spill occurred during the morning hours of February 24, 2025 in a residential street in Beverly Hills. The spill area is limited to the street when the spill occurred. 	Y	34.08808	-118.40164	34.08819	-118.4014					02/24/2025 09:53	The City used the City of San Diego Metropolitan Wastewater Department Reference for Estimating Sewer Spills from manholes. 	The City received a call from the public and arrived on the site within 9 minutes to relieve the blockage and begin recovery and clean up. 	Debris from Lateral; Other (specify below)	Roots came from the private lateral. 	Gravity Mainline		Other (specify below); Vitrified Clay	The VCP pipe is lined. 	55	The spill did not impact residents or the street. City staff delineated the street to break the sewage blockage, cleanup and sewage recovery. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System	Spill was recovered from the catch basin and the street was washed. Runoff was vacuumed off the street curb and gutter. 	Three wastewater crew responded to the spill.  City crew broke the sewer blockage and restored proper flow.  Catch basins were vacuumed and cleaned from the sewer overflow. Streets and curb and gutter were washed and runoff was collected and disposed to the sewer system. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		The sewer main line was in a 60-day maintenance schedule and will be reduced to a 30-day maintenance schedule.  A post spill CCTV inspection determined the root came out from a private lateral and caused the sewer spill. 		02/24/2025 11:00	The post CCTV inspection determined the cause of the spill (root intrusion from private lateral). The City performed a CCTV inspection and notified property owners to maintain the sewer laterals. 		City staff connected with the property owner and informed them of their lateral connection condition and recommend that they schedule maintenance and coordinate it with City staff to prevent downstream blockage. 	02/24/2025 17:30														None.  The spill was contained within the street. 	The maintenance of the sewer line will be placed in a 30-day schedule. A post CCTV inspection identified other private laterals that have roots and recommended them to be maintained to prevent future sewer spills. 	Sewer maintenance was moved to 30-day schedule. 	Sewer main was lined in 2011 and in good condition. 	NA	NA	Maintenance schedule is adjusted in the City's asset management system (Infor). 	The spill response procedures worked well in this spill. No modification is needed at this time. 	City staff connected with the property owner and informed them of their lateral connection condition and recommend that they schedule maintenance and coordinate it with City staff to prevent downstream blockage. 	
5S	5SSO11048	Active	San Andreas CS	San Andreas SD	899929	1.5	Certified	Hugh Logan	District Manager	26-FEB-25	03-MAR-25	03-MAR-25	Category 1 Spill	369 East Saint Charles Street (MH F-250)	02/24/2025 12:15	02/24/2025 11:45	02/24/2025 10:45	02/24/2025 14:09	25-0981		GPS: 38.19197, -120.67469 MH F-250	38.19197	-120.67469	Manhole	N/A	N/A	11400	Approximately 30 ft from MH F-250 to creek, through blackberries. see attached GIS map 	N	N/A	0	0	Approximately 30 ft from MH F-250 to creek, through blackberries. see attached GIS map 	4950	3600	Surface Water	N/A	GPS: 38.19234, -120.67471 San Andreas Creek	Y	38.19234	-120.67471							02/24/2025 17:15	Total overflow: (50gal/min X 180mins) + (20gal/min X 120mins) = 11,400gals. Less Return: 3,600gals (6 loads X 600gals) Less Absorb: 2,850gals (25% of 11,400gals) Total to Creek: 4,950gals  Estimation of flow based on visual check and reference to San Diego MH Flow Rate Chart.	Report from community on start time.  Onsite, visual confirmation of stop time.	Root Intrusion	N/A	Gravity Mainline	N/A	Polyvinyl Chloride (PVC)	N/A	30	Vegetation around manhole. No other observable impacts to the area.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Returned Portion of Spill to Sanitary Sewer System	N/A	Vactor truck deployed. Bypass pumping established. Onsite presence to rod/jet the pipe. Cleanup on night of event, and morning after. 	Added Sewer to Preventive Maintenance Program; Repaired Facilities or Replaced Defect	N/A	Added to regular preventative maintenance list. Training of all operators	Week of 3/2/25: Jetter Preventative Maintenance.	02/24/2025 21:30	During jetting/rodding, significant root intrusion was found to be the cause of spill.	N	N/A		San Andreas Creek	Stream/Creek	N/A	Seasonal creek	None	Other (specify below)	No public use of this creek on day of the spill	San Andreas Sanitary District	0	N	N	N/A	N/A									N/A	
5S	5SSO10901	Active	City of Sacramento Utilities CS	Sacramento City	899936	1.1	Certified	Kevin Guerra	Superintendent		28-FEB-25	28-FEB-25	Monthly Category 3 Spill	1732 63rd Ave. Sacramento, Ca. 95822	01/14/2025 14:51	01/14/2025 15:15	01/14/2025 14:30				The plugged main caused a spill in a backyard that had a concrete pool deck. The spill never left the yard of the spill address.	38.49326	-121.49777	Lateral Clean Out (Private); Lower Lateral (Private)			83	The cleanout the spill appeared at was in the concrete pool deck in the back yard. The spill was contained on the concrete and in a  small dirt area just off the decking.	N						83	Paved Surface; Unpaved Surface		The spill was contained in the back yard of the appearance point, there are not multiple locations.	Y	38.49326	-121.49777							01/14/2025 15:33	The spill was trapped in the backyard of the reporting address. We measured out the area and the depth of the spill in two different locations and added them together.	The spill was in a back yard, we used the time the property owner went outside and first saw the spill as the start time. We used the time our responder unplugged the main as the end time.	Other (specify below); Pipe Structural Problem/Failure - Controls	An offset with a crack in the main caused main to not flow properly and grease to build up.	Gravity Mainline		Vitrified Clay		70	There was no impact to the environment or wastewater service.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		The spill was not actively overflowing upon arrival and it was trapped in the backyard. Once the main was unplugged a crew with a Hydro-Vacuum truck came to the site and they ran tubing into the backyard to remove the spill and the water being used to clean the area. The truck was taken to a closely sewer manhole and decanted back into the sewer system.	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV; Repaired Facilities or Replaced Defect		What we believe was the cause of the spill will be repaired, and our cleaning schedule was moved up 90 days.		01/14/2025 20:00	The investigation showed that there were defects in the piping that was causing the main to not flow properly. The obstruction was allowing grease to build up and plug the main. The defects are scheduled to be repaired within the next month. Also, this main had been getting cleaned every 30 days with the results showing the main was clean and wasn't showing the need  for this frequency. Our system recommended that it be moved to a 6 month schedule which proved to be too long as it was last cleaned 4 months prior. We have now adjusted the scheduling to 90 days, and hope with the repairs it will flow properly and the frequency can be adjusted to a proper time frame.		N/A	01/15/2025 09:20														N/A	N/A	This main went from a 30 day cleaning schedule to a 6 month schedule, and had not come due for cleaning when the spill occurred. We adjusted the cleaning schedule to 90 days, and will make a repair removing the problem.	N/A	The offset and crack will be repaired, this will remove the obstruction of flow that caused the grease build up inside of the main.	N/A	N/A	N/A	N/A	
2	2SSO10099	Active	Burlingame City CS	Burlingame City PWD	899939	1.2	Certified	Richard J Horne	Streets, Storm Drain and Sewer Division Manager		24-MAR-25	24-MAR-25	Monthly Category 3 Spill	1721 Marco Polo Way	02/10/2025 10:50	02/10/2025 10:54	02/10/2025 10:00				Clean out at 1721 Marco Polo Way, Burlingame, CA 94010.	37.58982	-122.38453	Lateral Clean Out (Public)			90	The spill appeared from the clean out in the sidewalk, spilled over the curb and traveled 820� north in the gutter and was stopped by a sandbag berm placed by city staff prior to entering the storm drain conveyance system.	N						90	Street/Curb and Gutter (2 3)		Spill was stopped at a sandbag berm placed by city staff around a storm inlet.	Y	37.59137	-122.38654							02/10/2025 11:04	Spill volume was determined by using the Area/Volume method.	Spill start time was estimated based upon witness statements, while the end time was determined by city staff when they broke the blockage in the lower lateral.	Debris-General; Debris-Rags; Debris-wipes/Non-disposables; Root Intrusion		Lower Lateral		Vitrified Clay		50	Minimal impact, entire spill volume recovered and returned to sanitary sewer system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		The SSO occurred at the lower lateral clean out between 1721 & 1735 Marco Polo Way. S36 arrived at 10:54 am to find the city clean out was actively overflowing. The spill appeared from the clean out in the sidewalk, spilled over the curb and traveled 820� north in the gutter and was stopped by a sandbag berm placed by city staff prior to entering the storm drain conveyance system. S36 spartan rodded the overflowing lateral and restored flow at 11:04 am. The effects of the spill were minimal. City staff members S36, S25, S26, and 7519 then utilized a Van-Con combination truck to wash the spill down, collect all spilled sewage and return it to the sanitary sewer system.  	Added Sewer to Preventive Maintenance Program; Post Spill CCTV		Lateral asset has been added to a bi-annual preventative maintenance cleaning schedule.		02/10/2025 12:43	City staff CCTV inspected the lateral on 2/19/25 and found that root intrusion along with rags/wipes caused the spill.		City staff CCTV inspected the lateral on 2/19/25 and found that root intrusion along with rags/wipes caused the spill.	02/19/2025 14:00														N/A	Lateral asset has been added to a bi-annual preventative maintenance cleaning schedule.	Lateral asset has been added to a bi-annual preventative maintenance cleaning schedule.	N/A	Sewer lateral C3-26493 was CCTV inspected on 2/19/25 by city staff.	None.		None.	City staff CCTV inspected the lateral on 2/19/25 and found that root intrusion along with rags/wipes caused the spill.	
5S	5SSO10901	Active	City of Sacramento Utilities CS	Sacramento City	899940	1.1	Certified	Kevin Guerra	Superintendent		28-FEB-25	28-FEB-25	Monthly Category 3 Spill	7436 Troon Way Sacramento, Ca. 95822	01/21/2025 15:27	01/21/2025 15:45	01/21/2025 15:15				The spill appearance point was a manhole in the street, located in front of this address.	38.4886	-121.48347	Manhole			739	Spill left the manhole in the street and traveled 10 feet to a gutter pan and another 240 feet to the drain inlet where it entered the conveyance system. It was captured in the system about a quarter of a mile away.	Y	The spill entered at the top of the drainage conveyance system that runs to a sump station where it discharges into a waterway.	739				739	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		The spill left the manhole in the street and traveled West to the gutter pan. It then went North to a drain inlet that was the start of the drainage conveyance system, where it traveled through multiple main segments until it eventually stopped and was captured from 21  drainage main.	Y	38.4886	-121.48347	38.48958	-121.48349	38.49302	-121.48308			01/21/2025 16:32	The spill was not active when we arrived, so the estimation was calculated by measuring the spill area and depth on the ground at the manhole, and in the gutter pan until it reached the drain inlet. We then opened Drainage manholes to test for the spill and as we did we took depth measurements, we used these to calculate volume in the pipes by using their lengths and diameters. We added the volume on the ground to what was captured and removed from the conveyance system to get the total estimation.	We used the statement from the caller for the start time, they called the city as soon as they noticed it in front of their house. The responder marked the time that he relieved the plugged main so we used that as the end time.	Root Intrusion		Manhole		Vitrified Clay		62	There were no impacts to service or the environment from this spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		The spill had traveled to a nearby drain inlet, the responder removed the grate from that drain and used a cone to stop anymore of the spill from entering the drainage system.  The sump station the conveyance system went to was turned off and the main was unplugged. The drain was at the top of the line so a test was taken at the first drainage manhole and that was used to compare to other tests in the drainage system. There was a test that came back clean at a manhole located in the travel path of the spill and that is where the crews set up to capture and return the spill to the sewer system using Jet/Vacuum trucks.  	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV; Repaired Facilities or Replaced Defect		A repair was made at the manhole with the root intrusion. The roots were removed and the manhole was repaired where they entered and caused the spill.		01/21/2025 19:00	We found that a large root mass had formed in a manhole that was obstructing the flow of our sewer main. After inspecting the main that was affected using CCTV we found the main to be in good condition. We made a repair to the manhole and resealed the joints where the roots had entered eliminating the entrance point into our system.		N/A	01/23/2025 10:24														N/A	N/A	N/A	N/A	A repair was made by crews making an entry into the manhole that had root intrusion. Roots were removed from the joints in the manhole and it was resealed to prevent them from coming back.	N/A	N/A	N/A	N/A	
4	4SSO10429	Active	Santa Clarita City CS	City of Santa Clarita 	899965	1.1	Certified	Eric Liu	Civil Engineer		27-FEB-25	27-FEB-25	Monthly Category 3 Spill	1294 - 1086 (28280 N. Via Sonata, Santa Clarita, CA)	02/03/2025 10:08	02/03/2025 10:57	02/03/2025 10:04				CSMD Map Sheet No. 1294 MMS No. 9210955 Manhole No. 1086 	34.45106	-118.56311	Manhole	Manhole No. 1086		100	Sewage discharged from Manhole No. 1086, flowed along the curbside, and evaporated.	N						0	Street/Curb and Gutter (2 3)		Approximately 100 gallons of sewage discharged from the manhole, escaped, and evaporated along the street and curb surface. 	N									02/03/2025 10:30	CWEA SSCSC Manhole Gauge Visual Eyeball Method	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops. 	Debris-wipes/Non-disposables		Gravity Mainline		Vitrified Clay		18	Approximately 100 gallons of sewage discharged from the manhole, escaped, and evaporated along the street and curb surface. 	N	Other Enforcement Agency Notified; Restored Flow		Upon arrival, manhole 1086 was no longer overflowing but showed signs of a previous overflow. The stoppage appeared to have relieved itself. Hydro-jetted the mainline as a precaution and notified all required agencies and the constituent. 	Other (specify below)	We will inspect sewer using CCTV to determine if adjustments or further actions are needed.	N/A		02/03/2025 11:30	N/A		We will inspect sewer using CCTV to determine if adjustments or further actions are needed.	04/03/2025 08:40														N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	We will inspect sewer using CCTV to determine if adjustments or further actions are needed.	
2	2SSO10115	Active	South San Francisco City CS	South San Francisco City	899966	1.1	Certified	David A. Bockhaus	Deputy Director of Public Works		05-MAR-25	05-MAR-25	Monthly Category 3 Spill	291 Utah Ave	01/07/2025 09:52	01/07/2025 10:08	01/07/2025 08:18				Manhole wL2985 was on the street and the spill travelled down the road into the curb and gutter line. The spill travelled 104 ft down the concrete gutter along the curb where it was recovered by the Vac-con. At manhole wL2986 the spill came out of the manhole and travel along the road into the curb/gutter about 21 ft where it was captured by the Vac-con. Manhole wL2987 travelled down the road out of the overflowing manhole into the curb/gutter and made it 12 ft before being recovered fully by another Vac-con. None of the spill reached a catch basin and was all fully recovered by Vac-cons.	37.647183	-122.395389	Manhole		2 other manholes	457	The spill originated out of the sewer manholes and seeped onto the road traveling along the asphalt until it eventually reached the concrete curb/gutter where it was fully recovered by Vac-cons	N						457	Paved Surface; Street/Curb and Gutter (2 3)		The destination of the spill for the spilling manholes was the sidewalk curb/gutter where the spill was held by Spill Shark until a Vac-con was able to fully recover the spill before reaching the catch basin.	Y	37.647183	-122.395389	37.647182	-122.394475	37.646354	-122.39538			01/07/2025 11:01	The spill volume estimations were calculated using the Volume Estimation: Area/Volume Method as all of the spill was on the surface and was able to  be measured and calculated. The flow rate was able to be found by referencing the S.M.A.R.T workbook with the height of the spout coming from the overflowing manholes.	The methodology to find the spill end time was the time recorded at the time of flow being restored. The spill start time estimation was found after finding the estimation for spill duration and then using that time against the end time to get an estimated start time.	Debris-General; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		60	Manhole wL2985 seeped out sewage that travelled 31 ft to the curb/gutter then travelled another 73 ft to where a Vac-con was able to recover it fully. At manhole wL2986 the spill seeped out and travelled along the asphalt roughly 21 ft into the curb/gutter where it travelled another 10 ft where it was then able to be fully recovered by a Vac-con.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		The spill response activities for the immediate spill response and containment include use of Spill Shark to keep the spill from flowing into the catch basins, the use of Vac-cons to fully recover the spill on the surface and the cleanup efforts and the use of a flushing truck to restore flow to the sewer main. The entire area was disinfected during the clean up efforts and fully recovered.	Enforcement action against Fats, Oil, and Grease (FOG) source		Environmental Compliance is currently investigating the nearby properties and the grease traps causing the high inflow of grease in the sewer main. One property has already been found to be past due for their grease trap cleaning resulting in a full trap. 		01/10/2025 13:20	Grease in Mainline from nearby businesses with full grease traps. Environmental Compliance has an ongoing investigation.		N/A	01/10/2025 13:30														South San Francisco Environmental Compliance Division	Property with grease traps set with monthly cleanings instead of every 2-3 months	N/A	N/A	Inspected Sewer and Lateral	N/A	N/A	N/A 	N/A	
5F	5SSO11202	Active	City of Fresno CS	County of Fresno	899972	1.2	Certified	Arturo Alvarez	Wastewater Manager, Certified		28-FEB-25	28-FEB-25	Monthly Category 3 Spill	1840 E. Yale Ave.	01/08/2025 12:19	01/08/2025 12:30	01/08/2025 10:00				The spill originated from MH 2256-45. Two private cleanouts were found to have what appeared to be toilet paper debris surrounding them.	36.77001	-119.78832	Lateral Clean Out (Private); Manhole	n/a	n/a	272	The spill area was contained to unpaved surface, paved surface, street/curb & gutter.	N	n/a	0				272	Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface	n/a	The spill area was contained to unpaved surface, paved surface, street/curb & gutter.	Y	36.77054	-119.78824	36.76991	-119.78826	36.77005	-119.78838			01/08/2025 13:35	Spill volume estimation calculated by determining the estimated volume of the spill area originating from MH 2256-45.	Estimated spill start time based on statement from the reporting party. Spill end time based on when the vacuum truck set up at the MH and ended the spill.	Fats, Oil and Grease (FOG)	n/a	Gravity Mainline	n/a	Vitrified Clay	n/a	79	There is no known sustained impact as a result of this spill event.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	(See 19.b.)	Once it was determined that there were no flood control assets impacted, operators attempted to conduct a video inspection to determine the cause and location of the blockage. The camera could not pass ~19' upstream due to grease buildup. When the Combo arrived, operators set up at 2256-45 to end the spill. Once the MH was vacuumed down, the mainline was flushed and the blockage was broken ~43' upstream of 2255-32 at 13:55. Spill area was cleaned and sanitized. Two private lateral cleanouts found to have small spills; residents at each house provided access to the cleanouts so operators could document and cleanup on 01-10-25.	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV	n/a	01-13-25 mainline CCTV inspection; mainline repair work identified; heavy grease 01-15-25 referred to WMD Environmental Control Officers (ECOs) to investigate two restaurants at the downstream end of the line 		01/08/2025 15:50	The spill is believed to be caused by heavy grease buildup. Once it was determined that there were no flood control assets impacted, operators attempted to conduct a video inspection to determine the cause and location of the blockage. The camera could not pass ~19' upstream due to grease buildup. When the Combo arrived, operators set up at 2256-45 to end the spill. Once the MH was vacuumed down, the mainline was flushed and the blockage was broken ~43' upstream of 2255-32 at 13:55. Spill area was cleaned and sanitized. Two private lateral cleanouts found to have small spills; residents at each house provided access to the cleanouts so operators could document and cleanup on 01-10-25.		n/a	01/08/2025 15:50														n/a	Mainline CCTV inspection post spill revealed heavy grease, appearing to originate from two lateral connections. The restaurants were referred to ECOs to investigate for FOG. One restaurant did not have records of the cleaning frequency for their grease interceptor; and the other restaurant does not have a grease interceptor. This restaurant has been instructed by ECOs to install a grease interceptor. ECOs to check these restaurants annually as part of their discharge permits.	01-23-25 Mainline added to 360 high frequency cleaning list.	n/a	Mainline added to spot repair mainline queue for a break at the downstream MH.	n/a	01-23-25 Mainline added to 360 high frequency cleaning list.	n/a	n/a	
5F	5SSO11202	Historical	City of Fresno CS	County of Fresno	899972	1.2	Certified	Arturo Alvarez	Wastewater Manager, Certified		28-FEB-25	28-FEB-25	Monthly Category 3 Spill	1840 E. Yale Ave.	01/08/2025 12:19	01/08/2025 12:30	01/08/2025 10:00				The spill originated from MH 2256-45. Two private cleanouts were found to have what appeared to be toilet paper debris surrounding them.	36.77001	-119.78832	Lateral Clean Out (Private); Manhole	n/a	n/a	272	The spill area was contained to unpaved surface, paved surface, street/curb & gutter.	N	n/a	0				272	Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface	n/a	The spill area was contained to unpaved surface, paved surface, street/curb & gutter.	Y	36.77054	-119.78824	36.76991	-119.78826	36.77005	-119.78838			01/08/2025 13:35	Spill volume estimation calculated by determining the estimated volume of the spill area originating from MH 2256-45.	Estimated spill start time based on statement from the reporting party. Spill end time based on when the vacuum truck set up at the MH and ended the spill.	Fats, Oil and Grease (FOG)	n/a	Gravity Mainline	n/a	Vitrified Clay	n/a	79	There is no known sustained impact as a result of this spill event.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	(See 19.b.)	Once it was determined that there were no flood control assets impacted, operators attempted to conduct a video inspection to determine the cause and location of the blockage. The camera could not pass ~19' upstream due to grease buildup. When the Combo arrived, operators set up at 2256-45 to end the spill. Once the MH was vacuumed down, the mainline was flushed and the blockage was broken ~43' upstream of 2255-32 at 13:55. Spill area was cleaned and sanitized. Two private lateral cleanouts found to have small spills; residents at each house provided access to the cleanouts so operators could document and cleanup on 01-10-25.	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV	n/a	01-13-25 mainline CCTV inspection; mainline repair work identified; heavy grease 01-15-25 referred to WMD Environmental Control Officers (ECOs) to investigate two restaurants at the downstream end of the line 		01/08/2025 15:50	The spill is believed to be caused by heavy grease buildup. Once it was determined that there were no flood control assets impacted, operators attempted to conduct a video inspection to determine the cause and location of the blockage. The camera could not pass ~19' upstream due to grease buildup. When the Combo arrived, operators set up at 2256-45 to end the spill. Once the MH was vacuumed down, the mainline was flushed and the blockage was broken ~43' upstream of 2255-32 at 13:55. Spill area was cleaned and sanitized. Two private lateral cleanouts found to have small spills; residents at each house provided access to the cleanouts so operators could document and cleanup on 01-10-25.		n/a	01/08/2025 15:50														n/a	Mainline CCTV inspection post spill revealed heavy grease, appearing to originate from two lateral connections. The restaurants were referred to ECOs to investigate for FOG. One restaurant did not have records of the cleaning frequency for their grease interceptor; and the other restaurant does not have a grease interceptor. This restaurant has been instructed by ECOs to install a grease interceptor. ECOs to check these restaurants annually as part of their discharge permits.	01-23-25 Mainline added to 360 high frequency cleaning list.	n/a	Mainline added to spot repair mainline queue for a break at the downstream MH.	n/a	01-23-25 Mainline added to 360 high frequency cleaning list.	n/a	n/a	
8	8SSO10543	Active	Beaumont City CS	Beaumont City	899975	1.2	Certified	Jerome Moledor	Wastewater Collections Supervisor	27-FEB-25	10-MAR-25	10-MAR-25	Category 2 Spill	Potrero Near RR tracks 	02/26/2025 11:05	02/26/2025 11:05	02/25/2025 18:00				Spill Originated from a force main air vac vault located off of Potrero Blvd between RR tracks and Castello Ln	33.94294	-117.01735	Other (specify below)	Air vac Vault		3272	Air vac vault is in a low spot. The spill ponded up in a 25' by 35' area.	N						3272	Unpaved Surface		The spill stayed in a low area near an air vac vault.	Y	33.94311	-117.01726							02/26/2025 12:16	Spill volume estimations were calculated by mathematical calculations of the spill site area 25� x 35� x 6� deep. Once the calculation was made, it was calculated into gallons. With the total amount of gallons and the on-site estimation of 3 gallons per minute out of the hole in the pipe nipple the calculation was made on approximate start time. Spill recovered calculations were made by vacuuming up all of the spill.	Spill volume estimations were calculated by mathematical calculations of the spill site area 25� x 35� x 6� deep. Once the calculation was made, it was calculated into gallons. With the total amount of gallons and the on-site estimation of 3 gallons per minute out of the hole in the pipe nipple the calculation was made on approximate start time. Spill recovered calculations were made by vacuuming up all of the spill.	Other (specify below)	Hole in 2' pipe nipple.	Force Main		Galvanized Steel		20	Impact of spill was just over the air vac vault. No public access or public areas.	N	Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Sewer spill was Self discovered on Potrero near Oak Valley Parkway between the overpass bridges in the area of an air vac vault. Vactor truck and more staff were called as it was found to be sewer. The spill was contained to a low area near the air vac vault structure and it did not travel from this area. Vactor started vacuuming. Vactor made repetitive trips once full to decant into a different line segment. Active overflow was stopped when it was determined which force main line had the problem. That line was shut down and we moved to the redundant line. The line remained shut down until repairs could be made the following day. Area was disinfected with a diluted chlorine solution. 	Repaired Facilities or Replaced Defect		Spell corrective activities included performing a confined space entry and removing the defective pipe nipple, installing a new flange, nipple, shut off valve, and air vac. Then recharging line and inspecting for leaks.	Repair was made on 2-27-25	02/27/2025 16:30	Cause of spill was found to be hole in 2' pipe nipple.	N												N													
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	899978	1.1	Certified	Gerald Watson	Sanitation Wastewater Manager III		11-MAR-25	11-MAR-25	Monthly Category 3 Spill	2000 North Mandeville Canyon Road	02/27/2025 07:47	02/27/2025 08:09	02/27/2025 07:47				The initial crew arrived at 8:09 A.M. and discovered a 10-inch mainline sewer serving the referenced area backed up due to a blockage. The crew removed the blockage and the back up ceased. Spill coming out of a maintenance hole located at Mandeville Canyon Road north of Boca De Canon Lane.	34.07237	-118.495433	Manhole			67	Spill coming out of a maintenance hole located at Mandeville Canyon Road north of Boca De Canon Lane. The crew was able to establish containment, and subsequently the entire amount was returned back to the systems.	N						67	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	Y	34.07237	-118.495433							02/27/2025 08:20	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.	SPILL FLOWRATE AND VOLUME DETERMINATION BASED ON FLOWOUT PICKHOLE OR OPENING DIAMETER OF PICKHOLE OR OPENING 0.75 INCHES HEIGHT OF WATER OUT OF PICKHOLE/OPENING 1 INCHES FLOWRATE PER PICKOLE/OPENING (GPM) 2 GPM # OF PICKHOLES/OPENINGS 1 TOTAL FLOWRATE (GPM) 2 GPM DURATION OF SPILL (MINUTES) 3 3MINUTES TOTAL FLOW (GALLONS) 67 GALLONS	Debris-General		Gravity Mainline		Vitrified Clay		68	It was estimated that approximately 67 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment, and subsequently the entire amount was returned back to the systems.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		On Thursday, February 27, 2024 at 7:47 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 2000 North Mandeville Canyon Road (TG 631-E1). A CWCD crew was immediately dispatched to the incident location and determined that the 10-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 8:20 AM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.  It was estimated that approximately 67 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment, and subsequently the entire amount was returned back to the systems.  The Los Angeles County Department of Public Health was notified and determined that the overflow did not necessitate any beach closures. The sewer location where the backup occurred will be televised to determine the exact cause and to determ	Post Spill CCTV		On Thursday, February 27, 2024 at 7:47 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 2000 North Mandeville Canyon Road (TG 631-E1). A CWCD crew was immediately dispatched to the incident location and determined that the 10-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 8:20 AM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.  It was estimated that approximately 67 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment, and subsequently the entire amount was returned back to the systems. 		02/27/2025 08:20	On Thursday, February 27, 2024 at 7:47 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 2000 North Mandeville Canyon Road (TG 631-E1). A CWCD crew was immediately dispatched to the incident location and determined that the 10-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 8:20 AM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.		Not at this time	02/27/2025 08:20														Not at this time	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	As part of our quality assurance program, this sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause of this event and the proper corrective actions to be taken.  The post-overflow Closed Circuit Television (CCTV) inspection revealed no defects. In an effort to prevent future incidents at this location the sewer will be placed on a quarterly cleaning schedule.	Not at this time	None At This Time.	Not at this time		On Thursday, February 27, 2024 at 7:47 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 2000 North Mandeville Canyon Road (TG 631-E1). A CWCD crew was immediately dispatched to the incident location and determined that the 10-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 8:20 AM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.  It was estimated that approximately 67 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment, and subsequently the entire amount was returned back to the systems. 	Not at this time	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	899985	1.2	Certified	Gerald Watson	Sanitation Wastewater Manager III	04-MAR-25	04-MAR-25	04-MAR-25	Category 2 Spill	11677 West San Vicente Boulevard	02/27/2025 16:45	02/27/2025 18:45	02/27/2025 16:45	02/28/2025 00:05	25-1048		Spill coming from a private lateral at 11677 West San Vicente Boulevard. See attached photos	34.054161	-118.464935	Lateral Clean Out (Private)			3648	See attached	N	None.					3648	Building or Structure		34.053768  118.465269	Y	34.053768	118.465269							02/07/2025 18:55	Spill flowrate and volume determination based on flowout pickhole or opening 	Diameter of pickhole or opening3.94inches Height of water out of pickhole/opening0.25inches Flowrate per pickole/opening (gpm)28gpm # of pickholes/openings1 Total flowrate (gpm)28gpm Duration of spill (minutes)130minutes Total flow (gallons)3,648gallons  	Fats, Oil and Grease (FOG)		Gravity Mainline		Concrete		99	Sewage Was Fully Contained On The Property At 11677 West San Vicente Boulevard.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		On Thursday, February 27, 2025, at 4:45 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer trouble at 11677 West San Vicente Boulevard (631-H4). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 6:55 PM. The cause of the blockage was attributed to Fats, Oils, and Grease (FOG). All necessary clean-up was then performed.  It was estimated that approximately 3,648 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment in the basement of the property located at 11677 West San Vicente Boulevard and subsequently the entire back up amount was returned to the sewer system.   	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source		Meet The Cleaning And Maintenance Schedule.	Maintain Quarterly Maintenance Schedule.	02/27/2025 18:55	On Thursday, February 27, 2025, at 4:45 PM, the Clean Water Conveyance Division (CWCD) received a report of a sewer trouble at 11677 West San Vicente Boulevard (631-H4). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 6:55 PM. The cause of the blockage was attributed to Fats, Oils, and Grease (FOG). All necessary clean-up was then performed.	N		02/28/2025 16:45										N													
3	3SSO11465	Active	Goleta West SD CS	Goleta West SD	897322	3.2	Certified	Brian McCarthy	General Manager/Superintendent	04-NOV-24	04-MAR-25	04-MAR-25	Category 1 Spill	SB Airport Abandon ARV Adaptor	10/30/2024 12:14	10/30/2024 12:14	10/30/2024 11:53	10/30/2024 15:44	24-6135		Manhole structure on top of 24  Force Main located along access road south [or west] of Santa Barbara Airport taxiway adjacent to runway 7/25.	34.42584	-119.84504	Force Main	At gasket for adapter of removed air release valve on 24  ductile iron pipe force main. Saddle connection with 2  bung plugged with threaded cap. Gasket on saddle connection appears to have failed.  Under further investigation. External corrosion observed on ARV adapter.	None.	8460	Spill emanated from sides of manhole where concrete had broken off. Spilled water wetted a 22' diameter circle area while flowing northwest into a Santa Barbara Airport stormwater drainage culvert basin with concrete apron and unlined plunge pool. Water pooled in existing culvert basin/plunge pool measuring 10' diameter roughly 18  deep. Water continued northwest in a manmade 3' wide stormwater drainage channel for 45' with an average of 10  of standing water. Wetted soil continued north west along Management Area D embankment in a triangular shape for roughly 180 square feet.	Y	Santa Barbara Airport�s stormwater drainage Network 3 outfall number P-X07-029 to �Management Area D� of Goleta Slough that ordinarily infiltrates Airport�s stormwater. Area is surrounded by an embankment on all sides, isolating it from the tributaries of the Goleta Slough area.  Partial concrete lining.	9000	5	It is our understanding the intent of this basin is to retain storm water runoff from the airport infields so it can percolate into the ground water. The District assumed for reporting that the drainage conveyance in the dry basin is a surface water itself and therefore reports the same volume numbers estimated from the drainage conveyance system as the discharge into and recovery from surface water.	8460	9000	Drainage Conveyance System	See Attachment Response for Response #1	See Attachment Response for Response #1	Y	34.42583	-119.84502	34.4256	-119.84515	34.42561	-119.84523	34.42563	-119.84515	10/30/2024 13:10	See Attachment Response for Response #3 and Update Response.	See Attachment Response for Response #3.a.	Other (specify below)	Spill occurred at an adaptor on the 24-inch ductile iron force main pipe installed in 1978.  The adaptor was where an air release valve had previously been removed and a steel threaded bung was installed at least twenty years ago.  The operational excursion appears to have been caused by a leak that sprung from the adaptor that filled the manhole and leaked from the concrete manhole collar.  The iron adaptor exhibited external corrosion.  The pipeline exposed during repair of the adapter appeared in standard condition.  Operations prior to the leak were normal and there was no unusual stress or pressure on the force main at the time of the leak.	Force Main		Ductile Iron		46	See Attachment Response for Response #7 and Update Response.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Other Enforcement Agency Notified; Property Owner Notified; Returned Portion of Spill to Sanitary Sewer System	See Attachment Response for Response #9 and Update Response.	See Attachment Response for Response #9 and Update Response.	Other (specify below); Repaired Facilities or Replaced Defect	See Attachment Response for Response #10 and Update Response.	See Attachment Response for Response #10 and Update Response.	See Attachment Response for Response #10 and Update Response.	02/05/2025 12:00	The District�s investigation is continuing and the District will continue to provide updates to the Regional Board. The initial investigation involved excavating the manhole to the pipeline and retrieving the adapter at the point of the operational excursion.  External corrosion was observed on the buried adapter, as documented by photo, and the adaptor is stored at the District�s office.  The District has replaced all buried adaptors, and further documented the condition of the pipeline at these points of repair.  In December 2024 and February 2025 the District completed an internal assessment of the integrity of the pipeline with Xylem Pure Technologies.  The resulting report will be used to further inform the District�s investigations of this spill and pipeline condition.	Y	The District will continue to investigate after it replaced the adapters at similar locations where air release valves have been removed (4 other locations) and completed an internal pipeline assessment in December 2024 and February 2025 to ensure the integrity of the force main and to prevent another spill. The SBA Air Release Valve (ARV) Locations Overview Map shows the removed ARV locations.	04/30/2025 16:00	Goleta Slough Management Area D	Other (specify below)	Stormwater outfall plunge pool, drainage conveyance and infiltration basin/dry basin.	See Attachment Response for Response #15.	The District continues to monitor the spill site and no impacts on aquatic life have observed since the spill.	Other (specify below); Restricted Public Access	See Attachment to Response #15	Santa Barbara County Public Health Department and Environmental Health Services	0	N	Y	Samples were collected from the outfall 12 basin from the plunge pool and from the water draining out from the pipe, from pooled water at the farthest extent of the spill area, upstream of outfall 12 in the stormwater pipe at an exposed drop inlet, and at a neighboring outfall 17 for comparison purposes.	pH, ammonia, total coliform, fecal coliform									The District will continue to investigate after it replaced the adapters at similar locations where air release valves have been removed (4 other locations) and completed an internal pipeline assessment in December 2024 and February 2025 to ensure the integrity of the force main and to prevent another spill. The SBA Air Release Valve (ARV) Locations Overview Map shows the removed ARV locations.	
2	2SSO10179	Active	San Jose City CS	San Jose City	899992	1.2	Certified	BINH TRAN	DIVISION MANAGER		28-MAR-25	28-MAR-25	Monthly Category 3 Spill	2403 Blanding Ave San Jose, CA 95121	02/22/2025 17:40	02/22/2025 18:12	02/22/2025 15:30				The appearance point was a sanitary manhole in front of the property at 2403 Blanding Ave in San Jose, CA.  A picture of the spill appearance point is included in the attachement tab 	37.30836	-121.79721	Manhole			325	The spill discharged from the sanitary manhole and traveled along the curb/gutter reaching a nearby storm catch basin #7994. Upon crew arrival, crew set up Vaccon truck and cleared the plug stopping the overflow.  The contained the spill on the surface using sandbags. During the response, the crew found the dry end at storm MH#12952.  The spill did not reach the waterway.  Pictures and a map of the spill extent are included in the attachment tab. 	Y	The spill reached a nearby storm inlet # 7994.  The storm inlet is connected to the City of San Jose's municiple separate storm sewer system.  The sewage got contained in the storm main MH #12952 which the crew cleaned. 	213				325	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		The spill (sewage) traveled along the street and curb/gutter from the manhole (spill appearance point). The manhole is identified in 11.d. and 11.e.  It then entered City's storm inlet and drainage system. The location of the storm drain inlet is identified in 11.f and 11.g. The crew was able to determine a spill end point in the storm drain conveyance system and used sandbags for containment in the nearby storm manhole. Coordinates for the containment in the storm system manhole are identified in 11.h and 11.i. 	Y	37.30836	-121.79721	37.3083	-121.79804	37.30799	-121.79888			02/22/2025 17:00	The total and the recovered spill volume was estimated using measurements from the responding crew. On land, the crew recorded spill measurements along the curb/ gutter and on the asphalt.  In addition, the crew recorded spill depths within the storm drain conveyance system pipes from the inlet to the sandbag containment in storm manhole 12952.	The reporting party first noticed the spill on 2/22/2025 at 16:00. Based on the reporting party's information, and the field observation it was assumed that the SSO likely burped and started around 15:30 on 2/22/2025.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		49	No impact to the CSJ waterways as the spill was contained within MS4.  No lasting impact to street/curb and gutter where overflow occurred due to maintenance staff cleaning. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	Cleared the spill and cleaned the area	Upon arrival, the responding City crew immediately placed sandbags around the nearby storm drain inlet where the spill had entered. The crew tracked the spill in the storm drain conveyance system (MS4) and placed sandbags in a manhole where they could contain the spill. The crew cleared the blockage and observed the plug was caused by grease. Next, the crew began their cleanup efforts on the street and curb/gutter. Crew used two combo trucks, one flushed water upstream and other vacuumed the water at the downstream containment in the storm drain manhole. All of the spill and induced water was cleaned up from both the land and storm drain conveyance system. Pictures of the containment locations were added to the Attachments Tab. 	Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Post Spill CCTV	Grease flyers distributed to nearby residents	The sewer was immediately CCTV'd following the overflow event in order to determine the cause. Further corrective actions the city has planned for this segment include: 1. Revideo segment in 6 months and adjust the cleaning cycle according to the findings. 2. The City will conduct grease outreach to the nearby residents.		02/22/2025 21:12	While the Responding Crew cleared the blockage in the plugged sanitary mainline, the Crew documented their findings. A pipe basket was used to collect the grease that was removed while clearing the blockage within the mainline. After conducting a follow up CCTV of the sanitary mainline pipe, there was no major O&M observation or structural defects that may have contributed to the blockage.		NA	03/12/2025 16:00														NA	The city has planned the following O&M modifications to prevent any repeat of the spill event: 1.Keep the cleaning frequency to 36 month cycle and make adjustement to the cleaning cycle based on the 6 month revideo findings.	NA	NA	Problem sanitary sewer asset was video inspected after the SSO on 3/24/2025. The pipe is in good condition only the grease build up.	NA	NA	NA	NA	
8	8SSO10539	Active	UC Riverside CS	UC Riverside	900004	1.2	Certified	Amanda Grey	Environmental Programs Manager		06-MAR-25	06-MAR-25	Monthly Category 3 Spill	Parking Lot 41	02/27/2025 10:38	02/27/2025 10:48	02/27/2025 10:15				Spill originated at cleanout in Parking Lot 41 north of Greenhouses #11-#14. Attached photos show spill appearance point at cleanout.	33.973008	-117.3233514	Lateral Clean Out (Public)			405	Extent: 600' north along gutter to storm drain at Big Springs Rd/N Campus Dr.  Spill boundaries: 600' x 2  Attached photo illustrates spill extent and boundary at end of 600' x 2 . Photo 1 of 1  taken after clean up. 	Y	UC Riverside storm drain system curb cut inlet. Attached photos show drainage conveyance system entry location. Photos taken during recovery and after clean up. 	405				405	Drainage Conveyance System		Spill reached curb cut storm drain inlet catch basin to 8  storm drain pipe at Big Springs Rd and N Campus Dr accessible by manhole above curb cut inlet catch basin. Next manhole downstream verified to be dry during recovery and cleanup.	Y	33.974571	-117.323777							02/27/2025 15:00	Observation, system knowledge, duration and flow rate used to estimate volume of spill discharged. Total volume recovered by vacuum equipment used to estimate volume of spill recovered.	Start time determination based on estimated spill volume, duration and flow rate, known spill end time, and observed spill extent and spread.	Debris-General; Root Intrusion		Lower Lateral		Vitrified Clay		50	Impact of the spill was low. Sewer line at Greenhouses #11-#14 blockage due to root intrusion caused sewer lateral to overflow and flow to nearby driveway and gutter and enter storm drain curb cut inlet at Big Springs Rd and N Campus Dr. Spill was recovered from catch basin via manhole located directly above curb cut inlet catch basin. Entire spill volume was recovered and entire spill area cleaned up thoroughly.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below)		Upon call from Facilities Services front desk, Plumbing Shop staff responded with sewer mainline machine, but were unsuccessful in clearing blockage. Contacted outside contractor for jetting services. Upon clearing blockage, confirmed by video inspection that spill cause was root intrusion. Contractor services included manhole vacuum of catch basin and storm drain at Big Springs Rd and N Campus Dr to recover spill and parking lot area and gutter wash down and clean up water.	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer	Created Work Order to Repair in Prioritized Order (Work Order #83722)	This sewer location is added to prioritized preventive maintenance with increased CCTV inspection frequency. This sewer location is prioritized for rehabilitation or replacement. 		02/28/2025 15:00	Upon clearing blockage, confirmed by video inspection that spill cause was root intrusion. 		No	02/28/2025 15:00														N/A	This sewer location is added to prioritized preventive maintenance with increased CCTV inspection frequency.	This sewer location is added to prioritized preventive maintenance with increased CCTV inspection frequency.	This sewer location is prioritized for rehabilitation or replacement. 	This sewer location is prioritized for rehabilitation or replacement. 	Not currently on capital improvement project schedule.	After action briefing report 3/5/25 Work Order #83722	1) Stop flow to storm drains by placing socks or sand bags at gutter, giving consideration to potential public health exposures caused by ponding at busy crosswalks, intersections, driveways, etc.; 2) contact EH&S immediately for support with spill containment and collection if needed, and to support spill report documentation; 3) have emergency POs in place for 24/7 spill response with guaranteed minimum response time; and 4) explore possibly of acquiring 400-700 gal vacuum equipment for sewer spill response.	No	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	900012	1.0	Work In Progress						Monthly Category 3 Spill	17401 West Vereda de la Montura	03/01/2025 09:45	03/01/2025 10:52	03/01/2025 09:45				Crew arrived at 10:52 AM and found sewage contained on the street that came from a maintenance hole located at Vereda de la Montura.	34.078552	-118.567713	Manhole			748	See attached	N						748	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	It was estimated that approximately 748 gallons of sewage backed out of the sewer as a result of the overflow. The crew was able to establish containment and subsequently the entire amount was returned back to the systems.	Y	34.078552	-118.567713							03/01/2025 10:25	The SSO volume was estimated utilizing a standardized template which calculates the volume by using dimensional analysis.	VOLUME OF A SPILL CONTAINED IN A RECTANGULAR AREA LENGTH 60 FEET WIDTH 20 FEET DEPTH 1 INCHES 0.0833 FEET VOLUME 100.00 FT3  748 GALLONS	Inappropriate Discharge to Collection System		Gravity Mainline		Vitrified Clay		45	It was estimated that approximately 748 gallons of sewage backed out of the sewer as a result of the overflow. The crew was able to establish containment and subsequently the entire amount was returned back to the systems.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned All Spill to Sanitary Sewer System			Other (specify below)	Investigate inappropriate discharge			03/01/2025 10:25	On Saturday, March 1, 2025 at 9:45 AM, the Clean Water Conveyance Division (CWCD) received a report of a sewage leak at 17401 West Vereda de la Montura (TG 590-E7). A CWCD crew was immediately dispatched to the incident location and determined that 8-inch main line sewer serving the referenced area had backed up due to a  Department of Water and Power water discharge. The cause of the overflow was attributed to overtaxing from a Department of Water and Power water release. The CWCD crew was able to establish containment and the backup ceased at 10:25 AM.  All necessary clean-up was then performed.																		Not at this time	Not at this time	Not at this time		Not at this time		On Saturday, March 1, 2025 at 9:45 AM, the Clean Water Conveyance Division (CWCD) received a report of a sewage leak at 17401 West Vereda de la Montura (TG 590-E7). A CWCD crew was immediately dispatched to the incident location and determined that 8-inch main line sewer serving the referenced area had backed up due to a  Department of Water and Power water discharge. The cause of the overflow was attributed to overtaxing from a Department of Water and Power water release. The CWCD crew was able to establish containment and the backup ceased at 10:25 AM.  All necessary clean-up was then performed.  It was estimated that approximately 748 gallons of sewage backed out of the sewer as a result of the overflow. The crew was able to establish containment and subsequently the entire amount was returned back to the systems.  The Los Angeles County Department of Public Health was notified and determined that the overflow did not necessitate any beach closures. The sewer location where the back		
2	2SSO10216	Active	West County WW District CS	West County Wastewater District	900016	1.2	Certified	Gordon Times	CSO Manager	11-MAR-25	19-MAR-25	19-MAR-25	Category 2 Spill	465 Linda Dr., San Pablo	03/02/2025 19:51	03/02/2025 20:51	03/02/2025 10:30	03/03/2025 10:11	25-1085		The spill went into a lateral and escaped our system from a cleanout in the backyard of 465 Linda Dr which was the main appearance point. A fair amount of sewer water and solids collected around the cleanout, in the lawn and into some nearby flowerbeds. Also, a small amount backed up into the shower.	37.99888	-122.33282	Gravity Mainline		A small amount backed up into the shower.	2869	The spill came out of the cleanout into some pavers and nearby flower beds. Photos attached.	N						0	Paved Surface; Unpaved Surface		The spill was confined to the backyard of the resident. The water seeped into the ground in the lawn and nearby flower beds. 	Y	37.99896	-122.33277	37.99892	-122.3327	37.99886	-122.33273			03/02/2025 21:30	We Used the Upstream Connection Method. The calculations can be found on page 41 of the attached field report.	The resident noticed it started spilling from her backyard cleanout around 10:30AM.	Root Intrusion		Gravity Mainline		Vitrified Clay		63	The spill was contained in the backyard of the resident and a small amount backed up in the shower. The spill was thoroughly cleaned by a restoration company the following day.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow	The spill was thoroughly cleaned by a restoration company the following day.	The spill was contained in the backyard and didn't reach any other areas. Upon arrival, the team tried to contact the resident but there was no answer. The crew then proceeded to the lower MH and cleared the stoppage. The resident eventually answered the door, and the crew was able to take pictures of the effects of the spill. The resident requested that we wait until the next day to commence cleaning. The cleaning was performed by Restoration Management.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		The line was CCTV inspected the following day and there was no evidence of structural issues, but they did see roots in the downstream invert. The frequency of maintenance has since been increased.	CCTV--3-3-25 Increased Maintenance--3-3-25	03/03/2025 07:53	The line was CCTV inspected the following day and there was no evidence of structural issues, but they did see roots in the downstream invert.	N												N													
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	900110	1.1	Certified	Ameal McLaurin	Sewer Supervisor 2		10-MAR-25	10-MAR-25	Monthly Category 3 Spill	3451 Encina Way, Oakland Ca	02/18/2025 15:19	02/18/2025 15:30	02/18/2025 15:19				Manhole on easement in the back of the property was overflowing.	37.75577	-122.15009	Manhole			619	Manhole on easement in the back of the property was overflowing. The sewage was flowing on unpaved surface, where it soaked into the soil.	N						0	Unpaved Surface		Manhole on easement in the back of the property was overflowing. The sewage was flowing on unpaved surface, where it soaked into the soil.										02/18/2025 19:00	1  pick hole x 2.5  height = 2.80 GPM 2.80 GPM x 221 minutes = 619 gallons total spill.	Start time was based on high level alarm. The end time was based on responding sewer crew restoring the flow in the mainline.	Root Intrusion		Gravity Mainline		Other (specify below)	CIPP (Cured in place pipe)	11	Manhole on easement in the back of the property was overflowing. The sewage was flowing on unpaved surface, where it soaked into the soil.	N	Cleaned Up (specify below); Restored Flow	Raked and removed contaminated soils.	Raked and removed contaminated soils.	Added Sewer to Preventive Maintenance Program; Post Spill CCTV		Mainline has been added to 3-month hydro high frequency maintenance program, W.O # 1580578.		02/27/2025 13:34	CCTV inspection W.O #1596682 showed root intrusion was the cause of the blockage.		N/A	02/27/2025 13:34														N/A	Mainline has been added to 3-month hydro high frequency maintenance program, W.O # 1580578.	Mainline has been added to 3-month hydro high frequency maintenance program, W.O # 1580578.	N/A	CCTV inspection W.O #1596682 showed root intrusion was the cause of the blockage.	N/A	Mainline has been added to 3-month hydro high frequency maintenance program, W.O # 1580578	CCTV inspection W.O #1596682 showed root intrusion was the cause of the blockage. Mainline has been added to 3-month hydro high frequency maintenance program, W.O # 1580578	N/A	
5F	5SSO11311	Active	MD-22A Oakhurst CS	Madera County Public Works Department - Special Districts	900114	1.2	Certified	Chad Brown	Utility Manager		05-MAR-25	05-MAR-25	Category 2 Spill	River Park Road	03/03/2025 17:19	03/03/2025 17:40	03/03/2025 17:00				Spill occurred at cleanout at 48948 River Park Road Due to Main Lift station #1 electronics failure 	37.32946	-119.65542	Lateral Clean Out (Private)			7000	See attached pictures. Spill stayed within 50' of cleanout.	N							Paved Surface; Unpaved Surface		Spill reached approximately 50' North of private cleanout.	Y	37.32946	-119.65542							03/03/2025 19:20	Estimated on visual spill amounts, assumed 50gpm and recovery was based on tank volume size.	Based on an assumed 50gpm discharge multiplied with start time of 1700hrs to spill restored of 1920hrs giving 140 mins of spill time at 50 gals/min =7000 gallons spilled.	Pump Station Failure - Controls; Pump Station Failure - Power		Pump Station - Controls; Pump Station - Power		Polyvinyl Chloride (PVC)		25	Minor amounts of sewage debris (i.e toilet paper) were left from previous night. Slight impact to parking lot area until cleaning was completed the following morning. All debris was cleaned up.	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow	Area was cleaned up with Hydro -Excavator and washed down while collecting water. Dirt area also raked, and debris collected.	Flow immediately restored and area washed and collected.	Repaired Facilities or Replaced Defect		Due to a UPS failure causing loss off all control power and alarms. We are working diligently with field staff and department electrician to design a better working systems that will not cause this fault in the future.	Looking into options to schedule some type of more efficient and reliable solution for long term functionality.	03/03/2025 19:20	Spill was due to a faulty one year old batterie back up UPS module causing loss of all controls and alarms.	N												Y													
2	2SSO10183	Active	San Mateo CIty CS	San Mateo City	900117	1.2	Amended	Eric Morkve	Supervisor	04-MAR-25	12-MAR-25	12-MAR-25	Category 1 Spill	3905 Kingridge Drive	03/04/2025 10:30	03/04/2025 10:30	02/15/2025 10:30	03/04/2025 12:00	25-1107	18-APR-25	Overflowing manhole, material flowing into creek	40.5717	-80.075941	Manhole			684000	Extent of spill estimated at 648,00 gallons. Material flowing from manhole 553-11 downhill into creek	N				Direct connect to Laurel creek	684000	0	Surface Water		Overflow direct to Laurel creek, Marina lagoon then SF bay	Y	37.52584	-122.30984							03/04/2025 11:30	Visual, san diego method, per investigation overflow time was 456 hours at 25 gpm(see video)	video of overflow, 25 gpm by san diego method	Other (specify below)	roots grew between a pipe and manhole shelf creating a mass that plugged the line	Manhole		Vitrified Clay		40	Direct overflow to creek, cleanup around manhole, 70 degree slope on hillside and unable to clean solids	N	Cleaned Up (specify below); Restored Flow	dug up soil around manhole where able, removed and disposed	Located spill, cctv to determine cause, remove root mass to restore flow, unable to remove solids from hillside as slope is to steep to access	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	adding yearly inspection of manholes to deter/remove root growth	completed inspections of 6 manholes for condition, remainder of manholes to be completed within 30 days, photographs attached to inspection tasks yearly inspections of manholes added to inspections	added to CMMS for yearly inspections by 5/1/25	03/07/2025 15:30	CCTV to detemine blockage was growth in overflowing manhole	Y	initial inspections of manholes in kingridge easement, yearly inspections planned of manholes in easement	03/12/2025 09:24	unnamed waterway leading to laurel creek	Wash		wash to creek	none observed	Other (specify below)	no	City of San Mateo	0	N	Y	100 ft. upstream, 100 ft. downstream 	Ammonia, E-Coli, Enterococcus									initial inspections of manholes in kingridge easement, yearly inspections planned of manholes in easement	
2	2SSO10127	Active	Delta Diablo SD CS	Delta Diablo	897860	3.1	Certified	Trevor Simpson	Maintenance Supervisor	05-DEC-24	04-MAR-25	04-MAR-25	Category 1 Spill	Shore Acres Pump Station located at 1725 Port Chicago Highway, Bay Point	12/02/2024 15:20	12/02/2024 15:20	11/05/2024 12:00	12/02/2024 16:44	24-6720	16-JAN-25	Spill resulted from a break in a 16-inch discharge forcemain approximately 120 feet east of District�s Shore Acres Pump Station entrance gate (38.043476, -121.977472) adjacent to marshland area on private property (Military Ocean Terminal Concord). The spill start date and time are still under investigation; the District will provide a more extensive report describing the circumstances in the upcoming 15- and 45-day reports, as appropriate, which will also inform the estimated spill volume noted in Section 8 below.	38.043476	-121.977472	Force Main; Gravity Mainline; Pump Station		There were two additional appearance points on December 4, 2024 from the Shore Acres Pump Station wet well and a gravity collection system manhole immediately upstream of the Shore Acres Pump Station as part of remedial response efforts. Both locations are within 200 feet of the forcemain break. Photographs showing the spill location(s) and surrounding area are attached.	20000000	Marshland area immediately adjacent to forcemain break location with potential for migration to Suisun Bay approximately 1,300 feet north of line break via a natural drainage channel located on marshland area. The District is collecting and analyzing samples from receiving waters as part of SSO response plan and performing visual observations. The District is assessing the extent of the spill boundaries. An aerial photograph showing the approximate location of the spill, natural drainage channel, and Suisun Bay is attached.	N	No, the District is not aware of the spill reaching stormwater and/or a constructed drainage conveyance systems. As noted above, the spill likely entered a natural drainage channel located on adjacent marshland area.			As noted above, the spill likely entered a natural drainage channel located on adjacent marshland area. The natural channel appears to discharge into Suisun Bay (38.047125, -121.977470). Photographs showing the discharge point and warning signage posted on the shoreline are attached.	20000000	0	Other (specify below); Surface Water; Unpaved Surface	In the vicinity of a natural drainage channel in a marshland area on private property owned by Military Ocean Terminal Concord.	See attachment - Certified Spill Report Question 1.b - Delta Diablo	Y	38.043476	-121.977472	38.047055	-121.977435					12/04/2024 17:30	See attachment - Certified Spill Report Questions 3 and 3.a - Delta Diablo	See attachment - Certified Spill Report Questions 3 and 3.a - Delta Diablo	Other (specify below); Pipe Structural Problem/Failure - Installation	Based on site investigations during emergency construction, the District has preliminarily determined the 16-inch forcemain (mortar-lined steel cylinder pipe) failed due to localized corrosion along a ~20-foot pipe section. This resulted in SSO conditions at the line break location ~5 feet below grade in an intermittently submerged area, which limited visual identification of SSO conditions at the pipe failure location. The District is engaging with a specialized engineering consultant to conduct a technical review of the forcemain failure mode, including root causes and contributing factors, and will make this information available to the Regional Water Board as part of future Spill Report submittals.	Force Main		Other (specify below)	Steel cylinder pipe (mortar lined) and fittings that met the requirements of AWWA C-303 (in 1978) and construction project specifications. See attachment - Certified Spill Report Question 6.a Attachment - Delta Diablo.	44	Based on preliminary field site observations, the District has not observed physical evidence of gross pollution (i.e., rags, debris) in the adjacent marshland area or in the natural flow channel. In addition, the District has not observed impacts to aquatic life, wildlife, or vegetation in the area. The District has hired a specialized consulting firm with specialty biologists and significant experience and expertise in identifying site impacts and remedial response plans. The District has been working to identify and comply with site access requirements in coordination with CA Department of Fish and Wildlife (CDFW) and the private property owner (Military Ocean Terminal Concord) so the consultant can conduct a site assessment during low-tide conditions (tentatively expected to be completed by December 24, 2024). The District will report site investigation findings and the recommended remedial response plan as part of future Spill Report submittals to the Regional Water Board.	N	Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow		See attachment - Certified Spill Report Question 9.b - Delta Diablo 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect	See attachment - Certified Spill Report Question 10.a - Delta Diablo 	The District is engaging with a specialized engineering consultant to conduct a technical review of the forcemain failure mode, including root causes and contributing factors. A comprehensive, internal review of operational conditions is also occurring. As a result of both these reviews, the District will identify any appropriate corrective and preventive actions to effectively reduce, eliminate, and/or prevent the potential for a recurrence of the SSO event. The information from both of these efforts will be reported to the Regional Water Board as part of future Spill Report submittals. 	See attached - Certified Spill Report Question 10.c - Delta Diablo 	12/04/2024 17:30	Based on site investigations during emergency construction, the District has preliminarily determined the 16-inch forcemain (mortar-lined steel cylinder pipe) failed due to localized corrosion along a ~20-foot pipe section. This resulted in SSO conditions at the line break location ~5 feet below grade in an intermittently submerged area, which limited visual identification of SSO conditions at the pipe failure location. The District is engaging with an engineering consultant to conduct a technical review of the forcemain failure mode, including root causes and contributing factors, and will make this information available to the Regional Water Board as part of future Spill Report submittals.  The District is also conducting a comprehensive, internal review of the operational conditions that existed, and may have contributed to the delay in identifying the SSO event. This information will be reported to the Regional Water Board as part of future Spill Report submittals.	Y	The District is conducting multiple comprehensive reviews to identify the spill boundaries, any further spill response, SSO cause, operational and/or infrastructure limitations, and recommended corrective action(s). The District will continue undertaking corrective and preventative actions, as appropriate. 	03/05/2025 12:00	Unnamed natural drainage channel in a marshland area leading to Suisun Bay on private property 	Estuary; Other (specify below)	Natural drainage channel in a marshland area on private property	Suisun Bay is a shallow tidal estuary. It lies at the confluence of the Sacramento River and San Joaquin River. To the west, Suisun Bay is drained by the Carquinez Strait, which connects to San Pablo Bay, a northern extension of San Francisco Bay.	See attachment - Certified Spill Report Question 15.a - Delta Diablo 	Other (specify below)	The SSO occurred on private property owned to Military Ocean Terminal Concord. The District posted warning signs at the edge of the marshland area and Suisun Bay receiving waters, and notified the private marina located one mile to the east. There are no public beaches, access conditions, or uses near the SSO location on private property.	N/A (no public usage nearby)	0	N	Y	Refer to map - Certified Spill Report Question 17.a Attachment - Delta Diablo	Samples were analyzed for dissolved oxygen, temperature, pH, conductivity, ammonia-nitrogen, total coliform, fecal coliform, enterococci (Enterolert)									The District is conducting multiple comprehensive reviews to identify the spill boundaries, any further spill response, SSO cause, operational and/or infrastructure limitations, and recommended corrective action(s). The District will continue undertaking corrective and preventative actions, as appropriate. 	
5S	5SSO11054	Active	South Placer Mud CS	South Placer MUD	900122	1.2	Certified	Eric Nielsen	General Manager	04-MAR-25	28-MAR-25	28-MAR-25	Category 1 Spill	3542 Willard way_Rocklin	03/02/2025 17:10	03/02/2025 17:39	03/02/2025 17:00				See Attached Spill Summary Report	38.78408	-121.24396	Lateral Clean Out (Public)			32	See Attached Spill Summary Report	Y	See Attached Spill Summary Report	0	24	See Attached Spill Summary Report	24	8	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		See attached Spill Event Summary.	Y	38.783929	-121.244273							03/02/2025 17:12	See attached Spill Event Summary.	See attached Spill Event Summary.	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)	See attached Spill Event Summary.	Lower Lateral		Ductile Iron		37	See attached Spill Event Summary.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		See attached Spill Event Summary.	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect	See attached Spill Event Summary.	See attached Spill Event Summary.	See attached Spill Event Summary.	03/02/2025 14:34	See attached Spill Event Summary.	N			Unnamed tributary of Antelope Creek	Other (specify below)	Drainage ditch.	Drainage ditch.	None observed.	Other (specify below)	No impact to public access.  There is no public access to this drainage ditch.	N/A	0	N	N												
5S	5SSO10891	Active	City Of Brentwood CS	Brentwood City	898490	2.1	Ready to Certify						Monthly Category 3 Spill	738 Castle Ct.	01/06/2025 09:25	01/06/2025 10:00	12/22/2024 12:00				Upper lateral cleanout	37.93211	-121.69909	Lateral Clean Out (Private)			948	24  area around the upper lateral cleanout	N						0	Unpaved Surface		Unpaved landscaping around the upper lateral cleanout.		37.951	-121.698							01/06/2025 10:00	Through the interview process the resident explained the 12/22/2024 @12:30pm she noticed the spill and 12/22/2024 @12:00pm she noticed it was not spilling.  12/22/2024 @ 12:00pm earliest possible start time.  The resident notified the city through the city's website work order portal.  This work order was sent to the wrong department.  The collections staff did not receive this notification until 1/6/2025 @ 9:25.   The resident explained the water usage from the different sources over the duration of a 358-hour spill.  Calculations were made based on water usage per source and duration of spill.	At time of the crew's arrival 1/6/2025 @ 10:00am.  The water was not flowing.  	Root Intrusion		Lower Lateral		Vitrified Clay		69	24  area around the upper lateral cleanout	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow		arrival 1/6/2025 @ 10:00am. Pictures taken. Jet cleaned from upper lateral cleanout to break plug. CCTVed from the upper lateral cleanout to find no lower lateral cleanout and root intrusion at the lower lateral main connection. Jet cleaned the lateral to remove the roots with a chain-flail cleaning head. CCTVed the lateral to confirm the roots were cleared. Cleaned the affected spill area removing residual solids with a shovel and bucket.   	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer; Post Spill CCTV		Add to the future CIP list to replace the mian pipe segment and lateral connections. 		01/06/2025 11:10	The cause of the spill was due to the root intrusion at the main connection. 		None	01/06/2025 11:10														None	None	None	CIP	CIP	Yes	None	None	None	
9	9SSO10691	Active	City of San Clemente CS	San Clemente City	900126	1.4	Certified	sergio lopez	collections chief 		05-MAR-25	05-MAR-25	Monthly Category 3 Spill	222 ave Lobeiro	03/03/2025 09:36	03/03/2025 09:42	03/03/2025 09:35				Water was seen coming out of manhole cover by unknown caller in front of 222 Ave Lobeiro 	33.40726	-117.60377	Manhole			500	no Photographs were able to be taken short three guys on monday it was all hands on deck to set up containment and clear the blockage 	Y	hit a catch basin that leads to a VSU where we were able to contain and recover all the liquids.  	500				500	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		VSU is less then 300 feet away from spill site	Y	33.40533	-117.60622							03/03/2025 09:48	pick hole method aswell as the amount that was recovered from our VSU into the combination truck debris tank 	time it was called into our staff and time operator arrived were logged on cell phone	Debris-wipes/Non-disposables; Root Intrusion		Gravity Mainline		Vitrified Clay		60	no impact on anything 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		set up combination truck to vacuum sewer from VSU and used clean water to wash down the entire area into the VSU.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		cctv area from better understanding of condition 		03/03/2025 09:55	minimal roots but lots of flushable wipes were pulled back 		NONE 	03/03/2025 10:20														N/A	N/A	N/A	N/A	cctv the pipe after cleaning 	N/A	N/A	NONE 	NONE 	
5S	5SSO11035	Active	Raymus Village Maint. District CS	Raymus Village Maintenance District	900140	1.1	Certified	Clint Irons	Superintendent		21-MAR-25	21-MAR-25	Monthly Category 3 Spill	14620 Pueblo Dr	02/14/2025 11:15	02/14/2025 11:40	02/14/2025 11:40				Manhole located at 14620 Pueblo Dr	37.83001	-121.21426	Gravity Mainline			100	From manhole downstream in curb and gutter to storm drain catch basin approximately 53 feet	Y	Storm water drain inlet at 14628 Pueblo Dr	100				100	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		14620 Pueblo Dr to 14628 Pueblo Dr	Y	37.83011	-121.21424	37.83002	-121.21408					02/14/2025 11:40	Visual estimation, flow estimation pictures	Visual estimation and time of flow	Pump Station Failure - Controls		Gravity Mainline; Manhole; Pump Station - Controls		Vitrified Clay		59	Spill traveled from manhole to storm water catch basin, and was contained in that drain inlet	N	Cleaned Up (specify below); Returned All Spill to Sanitary Sewer System	Vacuum truck, high pressure hose to clean affected are and vacuum contents of drain inlet	First responders determined cause of overflow to be level controls at lift station not working properly, manually ran pumps to mitigate spill	Repaired Facilities or Replaced Defect		Preventive maintenance at lift station, specifically level controls		02/14/2025 12:00	Lift station level controls faulty, clogged due to debris build up on bubbler line. Increase maintenance of lift station, request modernization of lift station		Planning stages of lift station replacement	02/14/2025 13:00														NA	Proper maintenance of level control system	Weekly inspection of level control system	First steps taken to replace aging lift station	Repaired faulty bubbler line level controls	Planned lift station replacement	New lift station maintenance SOP	Increase maintenance of lift station	Planning stages of lift station replacement	
8	8SSO10543	Active	Beaumont City CS	Beaumont City	900146	1.2	Amended	Jerome Moledor	Wastewater collections supervisor	06-MAR-25	18-MAR-25	18-MAR-25	Category 1 Spill	Behind 35197 Hogan Dr Beaumont CA 92223	03/03/2025 09:43	03/03/2025 10:00	03/02/2025 07:00	03/03/2025 12:16	25-1088	17-APR-25	Spill originated from a gravity sewer line that had been broken by a manhole that was pushed over by a failing ditch embankment. 	33.95966	-117.04627	Gravity Mainline			61200	The spill started at a nonflowing ditch behind 35197 Hogan Dr Beaumont CA 92223. It followed the ditch line to the suspected end point in the ditch behind the house near the intersection of Miller Pl and Demaret Dr.	Y	The drainage conveyance system is a ditch line between houses and a golf course. 	0	61200	There is no surface water in the area.	0	0	Drainage Conveyance System; Unpaved Surface		The spill went from the appearance point in a dry non-flowing ditch approximately 3000 feet South West to suspected spill end point. Please see attached maps.	Y	33.95959	-117.04624	33.95909	-117.05546					03/03/2025 17:08	Spill volume estimations were calculated by assessing the spill volume on site which was constantly changing with the diurnal flow. Estimations were made at the peak visual flow seen. The area serviced by this line only has approximately 250 residential houses.	Estimation of spill start time was gathered through investigation and determined that an internal email chain was going through the golf course facility the day before the city was notified. Start time was set before this email chain to provide time for the initial finding person to start the email. Spill end time was when on site bypass pumping alleviated the active spill.	Other (specify below)	Spill due to slope subsidence in the easement caused by inadequate maintenance of the slope by the slope owner. (Slope owned by others)	Gravity Mainline; Manhole		Polyvinyl Chloride (PVC)		21	The impact of the spill was kept within the confines of the ditch line. This ditch line has no public access.	Y	Other (specify below); Restored Flow	Set up bypass pumping and sprayed area with a diluted chlorine solution.	After notification and confirmation of the spill, the active spill area was deemed unsafe due to the undermining of the ditch sides (ditch is owned by others) and potential of the ditch sides falling. Subcontractors were immediately called to start excavating the area to make safe and prep a pad for a bypass set up. Once the bypass was up and functional and active overflow had stopped, the area was disinfected with a diluted chlorine solution.	Plan Rehabilitation or Replacement of Sewer		The city is in the process of redesigning and improving the area around the spill. The city has brought in engineers, both in-house and contracted for different ideas for the permanent repair. Until final evaluation and plans are submitted the line will continue to be bypassed and monitored numerous times daily by collections staff. There is an extra Standby bypass pump on site for the extra precaution. 	Currently the city's first major milestone is working with its engineering and consultants to develop a repair plan. The approval of these plans has to be done and coordination with adjacent landowners, including, but not limited to the Fairway Canyon Community Association and Morongo Band of Mission Indians. Upon the completion of this milestone further milestones will be developed.	03/05/2025 20:00	Spill due to slope subsidence in the easement caused by inadequate maintenance of the slope by the slope owner.	Y	The city is investigating the legal ownership and requirements for maintenance within the ditch line, both around the sewer line/manhole and beyond.	05/13/2025 16:30	NA	Other (specify below)	Ephemeral drainage channel 	NA	NA	Other (specify below)	There is no public access.	NA	0	N	Y	Water quality samples were collected at point of spill and downstream at suspected spill end area. There was no upstream sample taken as the ditch line was dry upstream. Please see map under attachments for sample locations.	Analyzed for total and fecal coliform.									The city is investigating the legal ownership and requirements for maintenance within the ditch line, both around the sewer line/manhole and beyond.	
4	4SSO10500	Active	Ventura County Waterworks District No. 16-Piru CS	Ventura Cnty Special Districts	900152	1.1	Certified	Arturo Aseo	Deputy Director		10-MAR-25	10-MAR-25	Monthly Category 3 Spill	Piru, So. Shoulder of Hwy 126 between Hopper Canyon Bridge and Railroad Tracks	02/24/2025 07:00	02/24/2025 07:30	02/21/2025 15:00				Leaking 6  PVC Force Main for Secondary Treated Sewer Effluent. See Attachment.	34.40068	-118.82721	Force Main	Water puddling on unpaved surface of south shoulder of HWY 126 between Hopper Canyon Bridge and railroad tracks. See Attachment. 	N/A	500	Water puddling on unpaved surface of south shoulder of HWY 126. See Attachment.	N	N/A					0	Unpaved Surface	N/A	Effluent water was concentrated on unpaved surface of south shoulder of HWY 126, most or all of it percolated into the ground. See Attachment.	Y	34.40068	-118.82721							02/24/2025 08:30	By visual observation, amount of water on ground and wet areas, and duration since it was first observed to when it was isolated.	We assumed start of leak/spill occurred two days from discovery date plus another two days (weekend) of additional leak until positive confirmation of leak from force main. Leak from force main was very minimal, and water only comes out of pipe and ground when the pumps are on. 	Pipe Structural Problem/Failure - Installation	Minor leak in pipe joint on 6  PVC force main buried 15 ft below ground.	Force Main		Polyvinyl Chloride (PVC)	N/A	47	Minimal impact to operations and environment.	N	Other (specify below); Other Enforcement Agency Notified	Turned off pumps for force main. Notified Ventura County Environmental Health Division. 	-Dispatched crew to assess situation and confirm effluent leak. - Contacted a contractor to locate and repair the source of leak. - Samples taken for testing.	Repaired Facilities or Replaced Defect	N/A	- Replaced section of defective PVC pipe. - Continue routine visual inspection of force main from Piru WTP to percolation ponds during normal weather, and immediately after a major rain/storm event.		02/24/2025 12:00	On 2/21/25 at 3:30 PM, we received notification from a passerby of small amount of water puddling along south shoulder of HWY 126, west of Hopper Canyon Bridge and east of railroad tracks, about 200 yards from Piru WTP. Immediately dispatched crew to assess situation. We also asked United Water Conservation District to investigate as they provide water service in area. Initial assessment indicated it was not a sewer effluent leak nor a water leak. Crews on both sides suspected water might have been dumped by others on side of HWY 126. On 2/24/25 07:00, crew went again to site to double check situation. By operating the VFDs at higher speeds to create higher pressure in force main, this caused bubbles to appear on site which confirmed the leak is from the force main. A contractor (Sam Hill & Sons) was quickly called to locate and repair the pipe leak. Leak was coming from joint in 6  PVC force main 15-ft below ground. Repair work was finished in afternoon of 2/25/25.		None. Investigation and repairs are completed.	02/24/2025 12:00														None. However, we notified Ventura County Environmental Health Division via Proposal 65 Report Form.	No modifications necessary. We will continue routine visual inspection of force main from Piru WTP to percolation ponds during normal weather, and immediately after a major rain/storm event.	No adjusted schedule necessary. We will continue routine visual inspection of force main from Piru WTP to percolation ponds during normal weather, and immediately after a major rain/storm event.	None. Repair has been completed. 	Repaired defective joint on 6  PVC force main 15-ft below ground. See Attachment. 	None.	No modifications necessary. We will continue routine visual inspection of force main from Piru WTP to percolation ponds during normal weather, and immediately after a major rain/storm event.	Not applicable.	None. Investigation and repairs are completed.	
2	2SSO10193-C	Active	San Francisco City Combined CS	San Francisco Public Utilities Commission	900155	1.2	Certified	Daniel Whitlock	Manager	06-MAR-25	12-MAR-25	12-MAR-25	Category 2 Spill	871 Turk Street 	03/04/2025 14:42	03/04/2025 16:15	03/03/2025 12:00				Spill was caused by a construction site filling the main sewer with concrete from a retaining wall pour on Monday 3/3/25. Spill originated from a floor drain and was contained in parking garage to property @ 871 Turk Street. 	37.78128	-122.42318	Inside Building or Structure			3809	Contained in parking garage . Exited system from Floor drain 	N						3809	Building or Structure		Spill destination was 100% contained in the parking garage to 871 Turk St. It was pooled up in four different locations . 	Y	37.78128	-122.42311	37.78132	-122.42316					03/05/2025 12:40	Measured Volume of locations within the parking garage where spill flowed to from floor drain. Area#1= 54' x 40' x .04 x 7.48 = 646.30 gallons Area #2= 20' x 20' x .04 x 7.48 = 119.70 gallons  Area #3= 94' x 20' x .04 x 7.48 = 562.50 gallons  Area #4= 112' x 74' x .04 x 7.48 = 2479.77 gallons  Total 3,808.27 Gallons ( 3809 Gallons) 	Measured Volume estimation . See previous question. 	Debris from Construction	Construction site building a retaining wall filled 50' of main sewer with concrete with the property's buried lateral they didn't expose or verify was onsite. 	Gravity Mainline		Vitrified Clay	P-82905	147	Spill impacted private parking garage . There was no property damage or facility closures . 	N	Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	Initially once we were aware of what was going on we used the Vacon to take all flow to the main sewer and the parking garage drained , we then installed a continuous sewer main bypass that was manned 24/7 until repair was completed on 3/8/25. Spill ended in the building on 3/5/25 @ 12:40 PM once Vacon started to take the flow from the building. Clean up was done that day by building maintenance. 	See above . Vacon relieved spill scenario from parking garage and the temporary Bypass was in place by 1900 on 3/5/25. Building maintenance took care of clean up on concrete in parking garage. Washed all areas back into sanitary system . 	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect	Repair was done on 3/8/25 . Pipe was back in service by 1330 . Pics attached of repair. 	Repairs already complete . 	Bypass setup on 3/5/25 @ 1630  Repair / pipe in ground 3/8/25 @ 1330 	03/05/2025 12:40	CCTV found the main sewer , manhole were filled with fresh concrete from a retaining wall pour @ 368 Elm St ( Backside of 871 Turk) . Pour took place on 3/3/25 at approx. 8 am . Concrete was all removed from system via open cut trenching and replacement . 	N												N													
5S	5SSO10923	Active	Deer Creek CS	El Dorado Irrigation District	900162	1.1	Certified	John Chavers	Collection System Supervisor		06-MAR-25	06-MAR-25	Monthly Category 3 Spill	DC-2025-02-04	02/20/2025 09:12	02/20/2025 09:55	02/20/2025 09:00				2592 Westridge Drive, Cameron PArk, CA 95682-Public cleanout in backyard- See Attachments	38.6636791	-121.0054139	Lateral Clean Out (Public)			60	See Attachments	N						10	Unpaved Surface		See Attachments	Y	38.6636791	-121.0054139							02/20/2025 09:29	See attachment	See Attachment- Witness statements: Water useage stopped and spilling stopped at 9:29 AM 2/20/25	Root Intrusion		Gravity Mainline		Polyvinyl Chloride (PVC)		45	None visible after clean up. See Attachment	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		See Attachment	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		See attachment. Blockage cleared. Root cut. Chemcal root control work order created.		02/20/2025 12:30	See Attachment		NA	02/20/2025 12:30														NA	See attachment. Chemical root control work order created	See attachment	See Atachment	See attachment	NA	See attachment	Chemical ooot control work order crated	NA	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	900170	1.1	Certified	Ameal McLaurin	Sewer Supervisor 2		13-MAR-25	13-MAR-25	Monthly Category 3 Spill	644 14th Street, Oakland Ca	02/25/2025 10:36	02/25/2025 11:05	02/25/2025 10:00				Floors drain inside the building's basement.	37.80626	-122.27578	Inside Building or Structure	Floors drain inside the building's basement.		328	The sewage spilled from the floors drain inside the building's basement and flooded the basement. 	N						328	Building or Structure		The sewage spilled from the floors drain inside the building's basement and flooded the basement. 										02/25/2025 12:15	Calculated volumes: Room: 20'L x 12'W x .08'D x 7.48-gal = 144 gallons Room: 10'L x 10'W x .08'D x 7.48-gal =60 gallons Room: 17'L x 8'W x .08'D x 7.48-gal =81 gallons Room: 9'L x 8'W x .08'D x 7.48-gal =43 gallons Total spill: 144 + 60 + 81 + 43 = 328 gallons	Start time was based on eyewitness account. The end time was based on responding sewer crew restoring the flow in the basement.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		125	The sewage spilled from the floors drain inside the building's basement and flooded the basement.  Maintenance personnel from the building recovered the spill and returned it to the sewer system. The building manager was provided with a claim packet for a restoration company to clean and abate the effects of the spill.	N	Cleaned Up (specify below); Other (specify below); Property Owner Notified; Restored Flow	Maintenance personnel from the building recovered the spill and returned it to the sewer system. The building manager was provided with a claim packet for a restoration company to clean and abate the effects of the spill.	Maintenance personnel from the building recovered the spill and returned it to the sewer system. The building manager was provided with a claim packet for a restoration company to clean and abate the effects of the spill.	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Mainline has been added to 6-month hydro high frequency maintenance program, W. O. #1589062.		03/11/2025 13:55	CCTV inspection found the mainline to be in fair condition, with grease deposition (Fog) to have been the cause of the blockage in the mainline. W.O #1597999.		N/A	03/11/2025 13:55														N/A	Mainline has been added to 6-month hydro high frequency maintenance program, W. O. #1589062.	Mainline has been added to 6-month hydro high frequency maintenance program, W. O. #1589062.	N/A	CCTV inspection found the mainline to be in fair condition, with grease deposition (Fog) to have been the cause of the blockage in the mainline. W.O #1597999.	N/A	CCTV inspection found the mainline to be in fair condition, with grease deposition (Fog) to have been the cause of the blockage in the mainline. W.O #1597999. Mainline has been added to 6-month hydro high frequency maintenance program, W. O. #1589062.	Mainline has been added to 6-month hydro high frequency maintenance program, W. O. #1589062.	N/A	
8	8SSO10620	Active	EVMWD Regional Plant CS	Elsinore Valley Municipal Water District	900171	1.2	Certified	Alex Ramirez	WW collections worker lll	07-MAR-25	17-MAR-25	17-MAR-25	Category 1 Spill	22216 San Joaquin Dr W Canyon lake	03/05/2025 02:35	03/05/2025 02:53	03/05/2025 02:15				EVMWD easement side of home. Photos attached  	33.69203	-117.2638	Manhole	N/A	N/A	425	SEE ATTACHMENTS 	N	Spill reached lake through private home drainage due to manhole on property  Photos attached 	0	0	See attachments	400	0	Surface Water	n/a 	canyon lake	Y	33.69203	-117.2638							03/05/2025 03:40	Spill volumes were determined by using state water board website overflow gauge, flow was under 1/8' and according to the gauge its 5gpm or less	estimation was done by the time the reporting party called and the time we were able to respond, our units were 15 minutes from spill and quickly cleared blockage 	Debris from Lateral; Debris-General; Other (specify below); Root Intrusion	Other debris was blue-stone from homes and found liner for repair when cleaning mainline	Manhole		Polyvinyl Chloride (PVC); Vitrified Clay		18	reached lake water	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow		When on-site we documented photos and created a dam to reduce the flow going into the private drains on the property, Cleared blockage and cleaned area and disinfected with lysol 	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Restored flow by removing debris, cleaning for the area may need more frequency due to blue stone coming from homes 	cctv gravity mains on a higher frequency	03/05/2025 06:30	Findings for cause of spill were caused by debris, blue-stone, roots, and large rubber liner that is used for repairs	N	n/a		canyon lake	Lake	n/a	canyon lake	no	Other (specify below)	private home owner entry only	Canyon lake POA	0	N	Y	see attachment	Total coliform  and e-coli									n/a	
8	8SSO10560	Active	Riverside City CS	Riverside City	900182	1.2	Certified	Kevin Street	Wastewater Field Operations Manager	07-MAR-25	19-MAR-25	19-MAR-25	Category 1 Spill	Magnolia Force Main at Jones Ave	03/05/2025 13:20	03/05/2025 13:40	03/05/2025 12:25	03/05/2025 13:50	25-1125		Spill originated from manhole covered vault containing force main air relief valve. Single appearance point. See attached photos. 	33.90659	-117.47086	Other (specify below)	Force Main Air Release Valve vault		39740	See attached photographs	Y	Spill reached storm drain catch basin which travels underground and discharges to an open concrete trapezoidal flood control channel,  Arlington Valley Channel.  See attached photographs	19500	20240	See attached photos	20240	19500	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water		Spill occurred near adjacent to a storm drain catch basin which carries storm flows through a neighborhood collector pipe and which discharges to a large concrete trapezoidal flood control channel. See attached photographs. 	Y	33.90658	-117.4709	33.90752	-117.48514	33.90503	-117.48638			03/05/2025 16:17	See attachment.	Photographs, video records. Conservative estimates used for volume of rain water mixed with recovered flows, diameter  hole  leaking from manhole, and height of water flowing from cover-removed manhole. Used spill volume estimate guide along with photo and video records of spill.  Used online calculation tools for volume of water lost from pipes under pressure when pressure and diameter of opening are known. 	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure; Operator Error (specify below); Pipe Structural Problem/Failure - Installation	Operator activated a newly-lined force main at the City's Pierce Street sewer lift station. One of the air relief valves (ARV) installed as part of the lining project was left in the open position by the installation contractor. The ARVs are housed withing 24  circular  manhole vaults  that are equipped with locking composite lids. When the force main was activated, the open ARV approximately 1-mile from the station began to leak to a point where flows were squirting from the interface of the lid and the ring. The pump to the force main was shut off as soon as the City confirmed the spill. When technicians responded to the leaking ARV they were able to close the valve and pause the leak. When cleaning the standing water from the vault, the ARV unseated.  It had not been fully installed. The dislodged ARV caused the force main upstream (1.3) to begin draining from the ARV connection point causing the larger volume of the spill. 	Air Relief Valve (ARV)/ Blow-Off Valve (BOV); Force Main		Cast Iron; Other (specify below)	Cast Iron force main lined with Flexible Fabric Reinforced Pipe pipe liner. 	1	Discharge of untreated sewage to flood control channel flowing with concurrent storm flows. 	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Returned Portion of Spill to Sanitary Sewer System		Spill partially contained in curb and gutter and within landscaped median. Flows within storm drain pipe partially intercepted downstream with vacuum truck. Spill and storm water from rain and gutter flows collected and returned to sewer. Street and curb and gutter rinsed, and wash water collected and returned to sewer. Storm drain catch basin and pipe flushed and rinse water recovered, to the extent possible considering concurrent rain and storm flows, and returned to system .	Other (specify below); Repaired Facilities or Replaced Defect	Follow-up with contractor and conducted a contractor-led training on ARV installation and operation	ARV reinstalled and follow-up training provided. Observers stationed at each ARV when the force main was reactivated. 	N/A	03/05/2025 17:57	ARV installed as part of force main lining project was left in the open position along with the ARV not being correctly installed. Operator transferred station from one force main to the other which led to the ARV leaking as there were no observers stationed at the ARV ahead of startup. 	N			Arlington Valley Channel	Other (specify below)	Flood Control Channel 	Flood Control Channel	None	Restricted Public Access	Public access restricted from spill response zone.	N/A	0	N	Y	Arlington Valley Flood Control Channel downstream of discharge location from neighborhood storm system.	Bac-t, ammonia, and COD										
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	900187	1.2	Certified	Kent Vian	Asst. Deputy Director		24-MAR-25	24-MAR-25	Category 1 Spill	NOT-40201218986 7608 SALIX PL	03/07/2025 13:50	03/07/2025 14:09	03/07/2025 13:41	03/08/2025 15:38	25-1186		THE SPILL ORIGINATED FROM MH#103 TRAVELLED DOWN NORTH WEST INTO THE INTO STORM DRAIN AND SETTLED IN PENASQUITOS CREEK GPS COORDINATES STORM COORDINATES 32.93943, -117.1584.	32.93942	-117.1584	Gravity Mainline; Manhole	N/A	N/A	264	FROM MH#103 DOWN THE STREET TO THE CURB AND GUTTER TO THE STORM DRAIN AND SETTLED INTO THE CANYON DRAIN CANYON	Y	 THE DRAINAGE CONVEYANCE SYSTEM IS 18  RCP.  UNDERGROUND SYSTEM THAT RUNS DOWN THRU HOMES INTO CANYON CREEK.	75	189	THE DISCHARGE POINT INTO THE SURFACE WATER. IN THE CAYON AREA THAT'S SURROUNDED BY VEGETATION PLEASE SEE PICTURES.	189	75	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)	N/A	THE SPILL DESTINATION ADDRESS IS 12180 DORMOUSE RD, NORTH WEST BOUND DOWN THE STREET INTO THE STORM DRAIN AND SETTLED INTO PENASQUITOS CREEK.	Y	32.9395	-117.15836							03/07/2025 14:25	THE SPILL VOLUME ESTIMATION IS CALCULATED BY VISUAL METHOD.	THE SPILL START TIME IS WHEN THE DISPATCH RECEIVES THE CALL FROM CONSUMER REPORTING THE SPILL.	Root Intrusion	N/A	Gravity Mainline; Manhole	N/A	Polyvinyl Chloride (PVC)	N/A	28	THE IMPACT WAS TO THE STREET, CURB, STORM DRAIN, AND ENDED INTO PENASQUITOS CREEK.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	CREWS RESPONDED, INVESTIGATED, RELIEVED, TRACKDOWN FINAL DESTINATION, CALLED CCTV, AND WASHDOWN AREA.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV	N/A	Rehabilitaion of manhole and frequency change from a 12 month to 6 month. Will reassess after rehabilitations had been completed. 	NOT AT THIS TIME.	03/07/2025 16:30	Root intuition into a manhole structure caused stoppage in the system channel. 	N	NOT AT THIS TIME.	03/11/2025 11:12	N/A	Stream/Creek	N/A	THE BODY OF WATER WAS A SMALL DRY CREEK BED.	NONE	Other (specify below)	Hiking path 	N/A	0	N	N	N/A	NONE.									NOT AT THIS TIME.	
3	3SSO10265	Active	El Estero CS	Santa Barbara City PWD	900193	1.2	Certified	Esteban Zambrano	WWC Superintendent 		21-MAR-25	21-MAR-25	Monthly Category 3 Spill	1700 Block Mission Ridge Rd	02/06/2025 08:58	02/06/2025 09:38	02/06/2025 08:28				On February 6, 2025, a spill incident occurred on the 1700 block of Mission Ridge Rd, with sewer discharge reported from a city manhole at GPS coordinates   Latitude: 34.43969 Longitude: -119.69583	34.43969	-119.69583	Manhole			240	Pictures 1-2: These images depict the manhole where spill originated from. Containing Spill with our vacuum unit. GPS Coordinates: 34.43969, -119.69583.  Picture 3: Shows debris and items, such as wipes, discovered in findings after breaking the plug and restoring flow.  Picture 4: Displays the crew creating a berm to contain the spill and prevent further spread.  Pictures 5 and 6: end point of spill, crew containing and vacuuming  Picture 7: illustrates the intersection where the spill was contained, providing a clear view of the containment measures in place.  Picture 8-11: observe the flow pattern running alongside the street curb and gutter.   Pictures 12-13: illustrate the crew disinfecting the affected area prior to washing it down.   Pictures 14-16: shows the crew washing down the area with clean water and using brushes to direct debris/flow toward the vacuum unit recovering all.	N						240	Street/Curb and Gutter (2 3)		On February 6,2025 approximately 240 gallons of wastewater discharged from manhole MH-G05-073 flowing towards the street and curb.   Our Emergency response measures allowed for us to fully recover all 240 gallons before it could enter any storm drain system.  GPS Coordinates of spill appearance and flow pattern leading to the location of the containment.  Sections 11.d. & 11.e.: Location of spill appearance at MH Sections 11.f. & 11.g.: Flow Pattern running alongside of curb and gutter Sections 11.h. & 11.i.: Location of the containment and fully recovering all 240 gallons 	Y	34.43969	-119.69583	34.43996	-119.69718	34.44048	-119.69914			02/06/2025 09:40	The City of Santa Barbara provides SSO training using an inground simulator, calculation volumes per Sewer Spill Estimation Guide Per Orange County, and CWEA training.   In addition, the city reviews every SSO with all staff to provide a training opportunity for SSO volume calculations and documentation requirements. 	The spill start time was determined based on a resident's report, which provided an eyewitness account of when the incident began. This time was logged due to the resident's proximity to the event.   The end time was established when the city�s vacuum unit successfully contained the spill and stopped the sewer from discharging into the public right-of-way. 	Debris-General; Other (specify below); Root Intrusion	wipes/toilet paper	Manhole		Other (specify below)	CIPP Lined	6	The spill occurred in a public right-of-way but did not reach any storm drains or bodies of water. The City of Santa Barbara was notified from a nearby resident walking by, the response team was able to arrive safely and quickly.   They successfully contained and cleaned up all of the spilled material before it could cause any further harm. As a result, the impact on the environment was minimal, with no contamination of water sources or negative effects on the surrounding community.   There were no reported health risks to the public, and the area was restored to its original condition without significant disruption. Overall, immediate action helped to limit any potential damage from the spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	CCTV Inspection	Upon arrival, Crew quickly assessed the situation and deployed sandbags/dirt to contain the spill and minimize flow.  The WWC crew arrived and contained the spill from the MH stopping the spill from discharging any more sewer into the public right-of-way and then restoring the flow. City staff then sanitized and washed-down the spill area and recovered all washed-down water in the street/curb and gutter.  Post-Cleanup and Post-Cleaning Inspection: After restoring the area and cleaning of the sewer main, our crew conducted a CCTV inspection of the city sewer mains to ensure no obstructions or blockages were present.   This involved:  Deploying our City CCTV camera equipment through the sewer lines to visually inspect for any debris, obstructions or damage. Assessing the flow within the sewer mains to ensure proper drainage and functionality.  All 240 gallons where successfully fully recovered.  The CCTV inspection confirmed that the sewer system was clear and flowing properly.	Other (specify below)	Repair Channel at MH-G05-073	A spill occurred due to structural issues with the manhole channel.   As of February 27, 2025, the manhole channel has been successfully repaired and reformed.		02/06/2025 14:30	See attachment. 		NA	02/06/2025 14:30														NA	NA	NA	NA	CCTV Inspection of sewer main	NA	NA	NA	NA	
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	900194	1.1	Certified	Ameal McLaurin	Sewer Supervisor 2		01-APR-25	01-APR-25	Monthly Category 3 Spill	1999 Harrison Street, Oakland Ca	03/04/2025 20:00	03/04/2025 20:34	03/04/2025 17:00				Sewage was spilling from floor drain in the building.	37.80799	-122.26587	Inside Building or Structure	Sewage was spilling from floor drain in the building.		53	Sewage was spilling from floor drain in the building, flooding the building.	N						53	Building or Structure		Sewage was spilling from floor drain in the building, flooding the building.										03/04/2025 21:17	Calculated volumes:  20'L x 9'W x.02'D x 7.48-gal = 27 gallons 10'L x 9'W x .02'D x 7.48-gal = 13 gallons 11'L x 8'W x .02'D x 7.48-gal = 13 gallons Total spill: 27 + 13 + 13 = 53 gallons 	Start time was based on eyewitness account. The end time was based on responding sewer crew restoring the flow in the mainline.	Fats, Oil and Grease (FOG)		Gravity Mainline		Other (specify below)	Cured in place pipe (CIPP) 	15	Sewage was spilling from floor drain in the building, flooding the building. Personnel from the building recovered and cleaned the spill areas. A claim packet was provided to building manager to have a restoration company to do a complete cleanup.	N	Other (specify below); Property Owner Notified; Restored Flow	Personnel from the building recovered and cleaned the spill areas. A claim packet was provided to building manager to have a restoration company to do a complete cleanup.	Personnel from the building recovered and cleaned the spill areas. A claim packet was provided to building manager to have a restoration company to do a complete cleanup.	Adjusted Schedule/Method of Preventive Maintenance; Post Spill CCTV		Adjusted to 3 months high frequency hydro maintenance program. 		03/22/2025 11:00	CCTV inspection W.O. #1599281 found grease deposition (FOG) to have been the cause of the blockage in the mainline. 		N/A	03/22/2025 11:00														N/A	Adjusted to 3 months high frequency hydro maintenance program, W.O.# 1601671.	Adjusted to 3 months high frequency hydro maintenance program, W.O.# 1601671.	N/A	CCTV inspection W.O. #1599281 found grease deposition (FOG) to have been the cause of the blockage in the mainline.	N/A	Adjusted to 3 months high frequency hydro maintenance program, W.O.# 1601671.	CCTV inspection W.O. #1599281 found grease deposition (FOG) to have been the cause of the blockage in the mainline. Adjusted to 3 months high frequency hydro maintenance program, W.O.# 1601671.	N/A	
4	4SSO10444	Active	Crescenta Valley County Water CS	Crescenta Valley Water District	900198	1.1	Certified	Brook Yared	Engineering Manager		10-MAR-25	10-MAR-25	Category 1 Spill	5530 Pineglen	03/09/2025 11:07	03/09/2025 11:35	03/09/2025 11:00	03/09/2025 14:10			Customer private lateral set up with cleanout directly through/above flood channel. Seet attachments. 	34.23913	-118.23547	Lateral Clean Out (Private)			62	Spill was contained to immediate area but at approximately 2:10pm, water began flooding through channel upstream making it unrecoverable. 	Y	PD 607 storm drain channel	0	62	Customer private lateral set up with cleanout directly through/above flood channel. Seet attachments. 	62	0	Drainage Conveyance System that discharges to surface water		Spill discharged into storm drain channel PD 607.  It was wawshed away before it could be recovered. LACFCD was contacted.	Y	34.23939	-118.23564							03/09/2025 17:40	Using our discharge estimation sheet staff determined the flow from the spill was approximately  0.25 gallons. It was estimated based on conversations with the customer that reported the spill that the spill lasted 187 minutes.  With 10 gallons being require to flush the line and a small trickle that contributed an additional 5 gal total. 61.75 gals total.	Spill estimating sheet. Time frames as reported by nearby residents.	Debris from Lateral		Lower Lateral		Vitrified Clay		55	Small puddling in the channel.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow		Sectioned off the area from pedestrian traffic, photographed the spill point (see IMG 3788), began notifying residents and deploying equipment to clear the blockage. Contacted OES and LACFCD. Diisnfected area with bleach.	Added Sewer to Preventive Maintenance Program		Discussed relocating the private lateral clean out with the customers.  Discussed a more regular cleaning schedule.	N/A	03/10/2025 15:28	Spill was caused by debris in the customer lateral ahead of the clean out.	N			Verdugo Wash	Wash		dried wash in the City of Glendale	None	Other (specify below)	N/A	LA County Flood Control District	0	N	N												
2	2SSO10135	Active	Foster City CS	Foster City PWD	900245	1.3	Certified	Frank Schoening	Foster City PW Superintendent	11-MAR-25	11-MAR-25	11-MAR-25	Category 1 Spill	LS # 15 FM 1142 Chess Dr. 	03/09/2025 13:30	03/09/2025 14:15	03/09/2025 13:00	03/09/2025 16:40	25-1199		Force main failure at Lift Station #15.  	37.56788	-122.27404	Force Main			18000	Force main failure at Lift Station #15. 	Y	Storm drain inlet is 91 feet away from the force main failure. The storm drain flows to the Foster City Lagoon.	2000	16000	Storm drain inlet is 91 feet away from the force main failure. The storm drain flows to the Foster City Lagoon.	16000	2000	Drainage Conveyance System that discharges to surface water		Force main failure at Lift Station #15.  	Y	37.56788	-122.27404							03/09/2025 15:04	Estimated at 150gpm using the SSCSC Manhole spill gauge for a total of 120 min for a total of 18,00 gallons.	Spill was reported to start at 1300 and valves and pump stations turned off at 1500	Pipe Structural Problem/Failure - Controls		Force Main		Concrete	ACP	30	Force main failure at Lift Station #15.  Deteriorated pipe.	N	Returned Portion of Spill to Sanitary Sewer System		 Sand bags were placed around the catch basin and vac truck was used to suck as much as possible before entering the storm drain system. 	Repaired Facilities or Replaced Defect		Replaced the portion of failed FM. CIP project will be established for replacement of entire FM	Engendering will schedule the funding and replacement of the FM 	03/09/2025 14:04	Possible H2S gas deteriorated the pipe.	N			Foster City Lagoon 	Other (specify below)	The Foster City storm drain system drains to a controlled lagoon. The lagoon is pumped into the San Francisco bay during rain events. 	The Foster City storm drain system drains to a controlled lagoon. The lagoon is pumped into the San Francisco bay during rain events. 	no observed impact	Other (specify below)	This area drains to a drainage channel that flows to the lagoon. There is No public access in this area.	NA	0	N	N												
2	2SSO10217	Active	West Valley Sd CS	West Valley SD	900247	1.4	Certified	Kelvin Hatchett	Operations Supervisor	11-MAR-25	21-MAR-25	21-MAR-25	Category 1 Spill	16244 Kennedy Rd.  Los Gatos, CA 95032	03/06/2025 16:03	03/06/2025 16:20	03/06/2025 14:30	03/06/2025 17:58	25-1150		Private Clean out cap was removed at 16244 Kennedy Rd. Los Gatos CA, 95032	37.22202	-121.95338	Lateral Clean Out (Private)			675	Private plumber removed cap from a private clean out causing a spill under the deck of the property and flowing down to Ross Creek.	N		0	0	Private plumber removed cap from a private clean out causing a spill under the deck of the property and flowing down to Ross Creek.	570	105	Surface Water; Unpaved Surface		Mainline blockage caused by 6  clean out cap lodged in 6  mainline. Possibly from private back flow device. Removed Cap caused overflow in the yard at 16244 Kennedy rd eventually made it way into Ross Creek.  	Y	37.22203	-121.95339	37.22194	-121.95323	37.22208	-121.95343	37.22208	-121.95326	03/06/2025 16:44	Volume was calculated by time, which was noted from the private plumber who removed the clean out cap, and flow rate estimated by WVSD staff on site.	Spill start time was documented by private plumber removing the clean out cap and end time was documented when stoppage was relieved by WVSD staff.	Other (specify below)	Mainline blockage caused by 6  clean out cap lodged in 6  mainline. Possibly from private back flow device. Removed Cap caused overflow in the yard at 16244 Kennedy rd eventually made it way into Ross Creek.  	Gravity Mainline		Vitrified Clay		60	Spill was located underneath back deck of 16244 Kennedy Rd and proceeded down the back side of property, partially ending up in Ross Creek.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow		Spill was partially contained under back deck of 16244 Kennedy Rd.  WVSD crews were able to break stoppage in mainline and Restoration Management was contracted to do clean up of site.	Inspected Sewer Using CCTV to Determine Cause		Spill was caused by foreign object entering system from upstream and becoming lodged in pipe segment.   Maintenance history report shows no previous issues and that current maintenance schedule is effective.	CCTV inspection was performed the following day, 3-7-25 where the clean out cap was found lodged in pipeline segment.  WVSD crews were able to retrieve foreign object the same day.	03/11/2025 09:15	CCTV inspection was performed the following day, 3-7-25 where the clean out cap was found lodged in pipeline segment.  WVSD crews on site during the spill on 3-6-25,  were able to turn the clean out cap and release flow thus ending the spill.  Clean out cap was able to be retrieved from pipeline segment 3-7-25.	N		03/07/2025 11:15	Ross Creek	Stream/Creek		Ross Creek local stream	None observed	Temporary Restricted Use		West Valley Sanitation District	0	N	N												
5S	5SSO11048	Active	San Andreas CS	San Andreas SD	900254	1.2	Certified	Wen Smith	Plant Operator		13-MAR-25	13-MAR-25	Monthly Category 3 Spill	231 Bellview St	03/10/2025 14:07	03/10/2025 14:30	03/10/2025 13:40				CO B-630C 38.19723, -120.68471	38.19722	-120.68471	Gravity Mainline			500	Spill went to the shoulder of the street, went to the storm drain and ended at downstream culvert. 	Y	Storm drain by Pari Mart Gas Station and end at the culvert cross the street. 	500				500	Drainage Conveyance System; Unpaved Surface		Culvert 38.19744, -120.68420	Y	38.19744	-120.6842							03/10/2025 15:30	Recovered spill took up 5/6 of Vac truck capacity. One load of Vac truck capacity is 600gals.	Recovered spill took up 5/6 of Vac truck capacity. One load of Vac truck capacity is 600gals.	Root Intrusion		Gravity Mainline		Concrete		74	 No observable impacts to the area	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned All Spill to Sanitary Sewer System		Jet the pipe and clear the blockage. Vac out spills and clean up affected areas	Added Sewer to Preventive Maintenance Program		Added sewer to Preventive Maintenance Program 		03/10/2025 15:30	Nearby trees roots cause of spill		N/A	03/10/2025 17:30														N/A	N/A		N/A	N/A	N/A	N/A	N/A	N/A	
1	1SSO11467	Active	Fort Bragg City CS	Fort Bragg Municipal Improvement Dist 1	900256	1.1	Work In Progress						Monthly Category 3 Spill	320 Park ST	03/11/2025 12:19	03/11/2025 12:33	03/11/2025 12:14				Clear liquid cominmg from pick hole of Man hole in front of 320 Park St.  running to curb line and then north for 180 feet and asorbing into area between asphalt and concrete curb	39.43859	-123.7968	Manhole		N/A	360	Spill was running down curb line at 15 inches wide at an average depth of 3/4 inch deep for 180 feet with a path from the man hole 2 feet wide with less that an 1/8 inch in depth	N						125	Unpaved Surface		spill went into an unpaved area between the concrete curb and the street asphalt	Y	39.43623	-123.79854							03/11/2025 12:46	estimations for flow volume from flow chart pictures of pick hole flows and the recoverd volume by mesuring the area of sewage in gutter area.	Start time was collected form information gathered from Reporting residnent when asked when they first noticed the problem.  end time was from operator observing the apearence point at the time of restoration.	Pipe Structural Problem/Failure - Controls		Gravity Mainline		Vitrified Clay		65	Area cleaned a disinfected with Vangaurd satitary system. Ground asorbed unrecoved sewage.	N	Returned Portion of Spill to Sanitary Sewer System		upon arival checked storm drain system to make sure it was not impacted and to photos if we needed them incase of a larger problem.  Ran Main line from down stream Man hole with High pressure sewer truck to restore flow.  Used Vacume on Vac truck to collect sewage still on surface and treated the area with Vangaurd sanitary system built on to truck	Plan Rehabilitation or Replacement of Sewer		CCTV suspected bad area and replace bad line.  untill corrective actions can take place we will be doing twice weekly inspections of area to prevent back up issues		03/11/2025 13:23	N/A		CCTV and pot holing	03/18/2025 12:00														N/A	CCTV and twice weekly inspections	Twice weekly inspections	CCTV location and schedule repair of replace when possible	Twice weekly inspections repair or replace as needed	possibly include in our next CIP project	N/A	Responed with full crew and VAC-Truck Jetter combo to restore flow and cleanup	CCTV and pot holing	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District	889865	2.1	Certified	John J. Hough	San Dist M&O Superintendent	14-AUG-23	11-MAR-25	11-MAR-25	Category 1 Spill	331257	08/09/2023 12:39	08/09/2023 13:23	08/05/2023 19:00				See Attached Spill Map.	38.6002	-121.3656	Lateral Clean Out (Public)			783	See Attached Spill Map.	Y	See Attached Spill Map.	87	0	See Attached Spill Map.	684	775	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See Attached Spill Map.	Y	38.6002	-121.3656	38.5991	-121.3658	38.5991	-121.3725			08/09/2023 13:23	See attached Volume Estimation.	See attached Volume Estimation.	Root Intrusion		Lower Lateral		Vitrified Clay		59	No observed impacts of the spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified Sacramento County Department of Water Resources Drainage O&M.	See attached Description of Event.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected the lower lateral with CCTV on August 9, 2023. Based on the findings, SacSewer adjusted the preventative maintenance schedule from a 36-month schedule to a 12-month schedule.	Adjusted preventative maintenance schedule on 8/10/2023.	08/09/2023 22:20	See attached Description of Event.	N			Strong Ranch Slough	Slough		This needs to be properly completed	No obeserved impacts to aquatic life.	Other (specify below)	The impacted surface water is fenced and not accessible to the public.	N/A	0	N	N												
4	4SSO11423	Active	Long Beach Water Dept. CS (SSO program)	Long Beach City, Water Dept	900259	1.2	Certified	Jennifer Rojas	Senior Director	11-MAR-25	25-MAR-25	25-MAR-25	Category 2 Spill	530 Ohio Ave Long Beach CA	03/10/2025 13:01	03/10/2025 13:20	03/10/2025 13:00	03/10/2025 16:43	25-1215		The spill originated from three sources: beneath the houses at 530 Ohio Ave and 542 Ohio Ave, as well as from a City sewer manhole (L10-SMH-008).	33.77325	-118.15983	Manhole; Upper Lateral (Private)			3700	The spill originated from three distinct locations. It resulted from an overflow at a damaged private sewer lateral at 530 Ohio Ave, where wastewater spread throughout the crawlspace. At 542 Ohio Ave, the spill also emanated from a compromised private sewer lateral beneath the house, affecting the crawlspace area. An additional spill occurred at a city sewer manhole, with sewage flowing down the alley, onto the street curb and gutter, and subsequently reaching the storm drain catch basin, with approximately one gallon of wastewater discharged. All spillages were contained and fully recovered.	Y	Concrete storm drain catch basin.	1	0			3700	Building or Structure; Drainage Conveyance System; Street/Curb and Gutter (2 3)		The spill exited the system from three locations. It resulted from an overflow at a private sewer lateral at 530 Ohio Ave, where wastewater spread throughout the crawlspace. At 542 Ohio Ave, the spill also emanated from a private sewer lateral beneath the house, affecting the crawlspace area. Additionally, an overflow occurred at a city sewer manhole, with effluent flowing down the alley, onto the street curb and gutter, and subsequently reaching the storm drain catch basin. All spillages were contained and fully recovered.	Y	33.77325	-118.15983	33.77338	-118.15947					03/10/2025 13:30	The spill volume on the street and the storm drain catch basin  was calculated using the formula (Length x Width x Depth) x 7.48. The dimensions were as follows:  Alley:  53' x 4' x 1/2  (0.04166667') x 7.48 = 66.06 gallons Street curb and gutter: 115' x 3 (0.25) x 1/4 (0.020833') x 7.48 = 4.480 gallons Conveyance system Storm Drain Catch Basin 4' x 4.5' x 1/32 (0.002604) x 7.48 = 0.35 Gallons.  Ocean Blue Contractors removed 2,800 gallons of sewage from the crawlspace at 530 Ohio Ave and 829 gallons from the crawlspace at 542 Ohio Ave.   The Cumulative total of the sewage spill , when adding the individual volumes, amounts to 3700 gallons. 	The resident reported a sewer spill in the crawlspace of his residence to Long Beach Utilities Dispatch. Upon arrival, I spoke with the resident, who indicated that he observed sewer water beneath his house when he returned home at 13:00. This time was documented as the start of the spill.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		107	A spill occurred, releasing sewage into the crawlspaces of two homes, as well as the alley, street curb, and gutter. The sewer crew contained the spill and promptly contacted Ocean Blue. They successfully recovered all of the spilled sewage and cleaned the affected areas. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	The Long Beach Health Department was notified.	1. Spill Containment: A blockage in the city's sewer main line led to a spill of approximately 3,700 gallons. To prevent the spill from spreading, sandbags were placed around the affected area.   2. Cleanup Efforts: Ocean Blue Environmental conducted a thorough cleanup using pressure washers to decontaminate affected surfaces. The vacuum truck was used to recover sewage from the crawlspaces of the two homes, as well as the alley, street curb, gutter, and storm drain catch basin. In total, 3,629 gallons of sewage were recovered from the crawlspaces, and an additional 71 gallons were removed from the alley, street curb, gutter, and storm drain system. All sewage was safely recovered and properly disposed of.    	Post Spill CCTV		A grease blockage occurred in the sewer main line.  The line was thoroughly cleaned and televised. All grease was removed.	On March 11, 2025, we used CCTV inspections to examine the sewer system. This inspection helped us pinpoint the cause of the spill, allowing us to clean and resolve the remaining grease.	03/10/2025 21:15	A post-CCTV inspection of the mainline was performed, revealing significant grease buildup in the city mainline due to residential grease. Our cleaning crews used hydro-jetting to clear the sewer main and remove the accumulated grease. The CCTV inspection confirmed that grease deposits, particularly heavy in the residential area connections, were the primary cause of the sewer mainline stoppage.	N	None											N												None	
4	4SSO10370	Active	Beverly Hills City CS	Beverly Hills City DPW	900262	1.2	Certified	Josette Descalzo	Environmental Compliance Manager		08-APR-25	08-APR-25	Monthly Category 3 Spill	1146 San Ysidro	03/10/2025 23:15	03/11/2025 00:13	03/10/2025 23:15				The spill occurred at manhole located at a residential street in Beverly Hills. 	34.0909	-118.42065	Manhole			975	The spill was contained in the residential street of the spill. The spill was on the street/curb and gutter and captured at the downstream catch basin. 	Y	The spill was contained in the downstream catch basin from the spill location. The catch basin has internal screens that is able to contain spill volume.  The catch basin is connected to a storm drain line connected to the City's storm drain system that connects to the City of Los Angeles or County of Los Angeles storm drain system that daylights to Ballona Creek.  It is approximately 5 radial miles away from the surface water. 	180				975	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		The spill was on the street/curb and gutter and onto the downstream catch basin which is 316 feet from the location of the spill.  In addition, the catch basin is approximately 5.4 radius miles away where the City's storm drain reaches the surface water. 	Y	34.0909	-118.42065	34.09028	-118.42103					03/11/2025 00:18	The City of San Diego Metropolitan Wastewater Department: Reference sheet for estimating sewer spills from overflowing sewer manholes. 	The City of San Diego Metropolitan Wastewater Department: Reference sheet for estimating sewer spills from overflowing sewer manholes. 	Root Intrusion		Other (specify below)	Private lateral root intrusion 	Vitrified Clay		82	The spill had no impact. No streets were closed. No impacted surface water or impacted residential properties. 	N	Cleaned Up (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Spill captured in the catch basin was recovered and disposed to the sewer system.  Spill on the street and curb were washed and recovered. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Sewer main was placed in a 90-day maintenance schedule from annual cleaning. 		03/11/2025 02:00	Roots from a private lateral connection obstructed the sewer main. A post CCTV inspection identified the cause of the spill.  The root obstruction was removed using a hydrojet. 		None. Post CCTV inspection determined the root intrusion came from a private lateral. 	03/11/2025 16:00														NA	CCTV post inspection includes private lateral inspection. If the lateral has blockage, the City will notify the property owner to clear the blockage to prevent future blockage. 	Sewer main was placed in a 90-day maintenance schedule from annual cleaning. 	NA. 	Post CCTV 	NA. 	Maintenance schedule is adjusted in the asset management system (Infor). 	Spill response  procedures and post spill procedures were effective in this SSO.  The spill was contained and cleanup were completed. 	None. Post CCTV inspection determined the root intrusion came from a private lateral. 	
5R	5SSO10782	Active	Alpine Meadows/Whispering Wood CS	Shasta CSA #13	900264	1.3	Certified	Scott Sealander	ops sup	13-MAR-25	14-MAR-25	14-MAR-25	Category 1 Spill	whispering meadows Ct   lift station	03/11/2025 08:30	03/11/2025 08:30	03/07/2025 03:00	03/11/2025 10:00	25-1233		Both lift station pumps were inoperable at the time of the incident.  Causing the lift station to overflow. The alarm system did not send notification due to a faulty breaker.  The spill was discovered during a routine check of the lift station.  Big valley sanitation was called immediately after discovering the spill.  A local pump company was called to troubleshoot why the pumps had failed.  It was determined that the pump had burned up, and replacement was necessary.  The pump company was able to get the lift station back online later in the day.	40.49419	-121.88527	Pump Station			7200	The spill originated from a lift station on whispering meadows Ct. in Shingletown Ca.  Although the spill entered a drainage ditch the spill soaked into the ground around the lift station and did not reach a waterway.	Y	There is a drainage ditch next to the lift station where the spill occurred.   	0	0	The only discharge point was at the lift station on Whispering Meadows Ct	0	0	Drainage Conveyance System; Unpaved Surface		The spill was primarily contained in the area around the lift station most of the spill soaked into the Gound.  although some of the spill did reach a drainage ditch adjacent to the lift station. 	Y	40.49416	-121.88525							03/11/2025 11:10	The spill volume was an estimation by visual observation by the operator at the scene of the spill.  I was determined the spill was approximately 1 gpm, and a total spill volume of about 7200 gallons.	According to a neighbor the spill started approximately around 3:00 PM on Friday the 7th of March.  The neighbor did not call in the spill, so it was not discovered until Tuesday the 11th of March during a routine inspection.	Pump Station Failure - Controls; Pump Station Failure - Mechanical		Pump Station - Mechanical		Concrete		50	The spill was contained at the pump station in the surrounding vegetation.  Most of the spill soaked into the ground, any remaining liquid was vacuumed up by a pumper truck that was on scene.	N	Cleaned Up (specify below)		The spill was contained to the immediate area of the lift station, any free-standing liquid was vacuumed up by a pumper truck. the area was sprayed down with 12.5 % chlorine solution.	Repaired Facilities or Replaced Defect		It was determined that the lift station pumps had failed and were non-operable and needed to be replaced.  New pumps were installed the same day the spill was discovered.	replace faulty pumps 	03/11/2025 09:30	The spill was caused by two failed sewer pumps in the lift station on Whispering Meadows Ct in Shingletown Ca.	N			unknown drainage ditch	Other (specify below)	There is a drainage ditch adjacent to the lift station where the spill occurred	There is no water body near the spill location, there is a seasonal drainage ditch near where the spill occurred	None 	Other (specify below)	No public closure, the spill was contained to Shasta County property 	No public closure	0	N	N												
8	8SSO10558	Active	Redlands City Wastewater CS	Redlands City	900280	1.1	Certified	Karla Siordia	Regulatory Compliance Officer		29-APR-25	29-APR-25	Monthly Category 3 Spill	1640 Arbor Dr, Redlands, CA 92373	03/04/2025 10:37	03/04/2025 11:57	03/04/2025 10:30				Mainline Sewer Backup through Manhole	34.02961	-117.15081	Gravity Mainline; Manhole	Curb, Gutter, and Storm Drain Windows		298	The SSO occurred at Manhole #29, with the spill evenly distributed across both adjacent storm drain windows, converging in the center of the street.	Y	Due to the elevation, liquids accumulated evenly in the low point at the center of the street, that lead towards the storm drain windows.	298				298	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		The spill event occurred at a manhole situated between two storm drain openings, with the spill spreading in a narrow strip between the two drains.	Y	34.02961	-117.15081							03/04/2025 12:10	We estimated the volume using the area/volume method from our SERP workbook, based on photographs and measurements taken during the spill event. Additionally, we documented the volume that was recovered.	We estimated the spill start time based on the first observed signs of discharge from the source and determined the spill end time when all visible discharge ceased. This estimation was supported by real-time monitoring data, witness accounts, and historical spill data for validation and accuracy.	Debris from Lateral; Debris-General; Debris-Rags; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline; Manhole		Vitrified Clay		65	Minimal to no noticeable impact, resulting in only slight inconvenience and limited observed consequences. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Spill response activities included immediate containment and cleanup efforts. Upon discovery of the spill, a rapid response team was deployed to the site. Containment measures involved the placement of absorbent materials and barriers around the spill area to prevent further spread. Cleanup efforts included the removal and proper disposal of the spilled substance, followed by thorough decontamination of the affected area to mitigate environmental and safety risks.	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer; Post Spill CCTV; Repaired Facilities or Replaced Defect		The spill corrective action plan outlines a comprehensive strategy to mitigate and prevent future spills. This plan includes regular source inspections, ongoing training, enhanced response protocols, environmental monitoring, facility upgrades, and continuous regulatory compliance checks. Key milestones include conducting initial inspections and training within the first year, with facility upgrades and comprehensive compliance reviews scheduled for subsequent years to ensure a systematic and effective approach.		03/04/2025 14:30	The investigation into the cause of the spill, conducted by the Wastewater Collections Supervisor and his dedicated staff, provided a comprehensive understanding of the incident. It was determined that the spill resulted from root intrusion and the buildup of wipes and debris in the sewage pipe. The team's thorough investigation revealed that the roots and debris had infiltrated the pipe, causing a blockage and subsequent spillage through lateral pick holes in the manhole cover at the property located at 1640 Arbor Dr. This finding underscores the importance of regular maintenance and root control measures in sewage systems to prevent future occurrences of root intrusion-related spills.		Ongoing investigation efforts involve the continuous collection of data, root cause analysis, regulatory compliance reviews, and documentation maintenance to thoroughly assess the spill incident and implement appropriate actions. These efforts are essential for gaining a comprehensive understanding of the incident, developing preventive measures, and ensuring ongoing compliance.	03/06/2025 14:30														In response to this spill, local regulatory authorities may have initiated enforcement actions, including investigations and penalties, as deemed necessary to address the illicit discharge and ensure compliance with local environmental regulations.	To prevent recurring spills at the same location, it is essential to implement identifiable system modifications, including enhanced containment and drainage systems. Operational adjustments, such as stricter handling protocols and regular equipment maintenance, should be enforced. Additionally, maintenance programs must be strengthened through proactive scheduling and comprehensive personnel training. These measures, collectively, aim to significantly reduce the risk of repeated spills at the same site.	The adjusted schedule and method of preventive maintenance focus on optimizing maintenance activities to improve equipment reliability and prevent breakdowns. This may involve revising maintenance intervals, conducting more frequent inspections, and implementing condition-based monitoring to proactively identify and address potential issues before they result in equipment failure.	The planned rehabilitation or replacement of the sanitary sewer asset is part of a Capital Improvement Program (CIP). This program strategically allocates resources to address aging or deteriorating infrastructure, either by restoring the existing asset through rehabilitation methods such as lining or structural repairs, or by fully replacing it.	We have conducted thorough inspections and taken the necessary actions to ensure the integrity and functionality of the assets. This includes repairing any identified issues and replacing defective assets as needed.	The planned rehabilitation or replacement of the sanitary sewer asset is a key component of the Capital Improvement Program (CIP). This program strategically allocates resources to address aging or deteriorating infrastructure, either by restoring the existing asset through rehabilitation methods such as lining or structural repairs, or by fully replacing it when necessary.	We have documentation verifying the immediate implementation of system modifications and operating/maintenance adjustments, all managed through a citywide virtual program. These records include details of the modifications made, their implementation dates, and supporting evidence such as photographs, reports, and work orders. This documentation confirms the proactive steps taken across the city to enhance the system and maintenance protocols for spill prevention.	Modifications to spill response activities involve refining procedures to ensure a more efficient and effective response. These improvements may include enhanced training for response teams, streamlined communication protocols to facilitate quicker coordination, and optimized resource allocation for prompt deployment. Additionally, community engagement initiatives may be introduced to raise awareness and encourage public involvement in reporting spill incidents.	Ongoing investigation efforts involve the continuous collection of data, root cause analysis, regulatory compliance reviews, and documentation maintenance to thoroughly assess the spill incident and implement appropriate actions. These efforts are essential for gaining a comprehensive understanding of the incident, developing preventive measures, and ensuring ongoing compliance.	
4	4SSO11365	Active	Unincorporated County Area CSMD South/County Sanitation District CS	Los Angeles Cnty DPW	900293	1.3	Certified	May Hong	Civil Engineer	13-MAR-25	21-MAR-25	21-MAR-25	Category 1 Spill	1753 - 1516 East Florence Avenue, Los Angeles, CA (Unincorporated County Area)	03/07/2025 16:00	03/07/2025 16:30	03/03/2025 16:00	03/07/2025 18:29	25-1173		CSMD Map Sheet No. 1753 MMS No. 9248108 Basement at 1516 East Florence Avenue	33.9747	118.24709	Inside Building or Structure			5250	The obstruction between manholes 402 and 400 on the south side of Florence Avenue caused sewage to back up and discharge into the basement at 1516 East Florence Avenue. Approximately 5,250 gallons of sewage entered the basement, of which 250 gallons was recovered from the gutter and 200 gallons was contained in the basement. The remaining 4,800 gallons was pumped from the basement by a plumber into the gutter, flowing into the storm drain at the southeast corner of Florence Avenue and Compton Avenue. 	Y	The obstruction between manholes 402 and 400 on the south side of Florence Avenue caused sewage to back up and discharge into the basement at 1516 East Florence Avenue. Approximately 5,250 gallons of sewage entered the basement, of which 250 gallons was recovered from the gutter and 200 gallons was contained in the basement. The remaining 4,800 gallons was pumped from the basement by a plumber into the gutter, flowing into the storm drain at the southeast corner of Florence Avenue and Compton Avenue. 	0	4800	Hooper Avenue Drain, Compton Creek to Los Angeles River. 	4800	450	Building or Structure; Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		The obstruction between manholes 402 and 400 on the south side of Florence Avenue caused sewage to back up and discharge into the basement at 1516 East Florence Avenue. Approximately 5,250 gallons of sewage entered the basement, of which 250 gallons was recovered from the gutter and 200 gallons was contained in the basement. The remaining 4,800 gallons was pumped from the basement by a plumber into the gutter, flowing into the storm drain at the southeast corner of Florence Avenue and Compton Avenue, eventually reaching the Hooper Avenue Drain, Compton Creek, which discharges into the Los Angeles River. 	Y	33.97454	118.24744							03/07/2025 17:30	Visual / Eyeball Method	The start time is obtained from the reporting party, and the end time is determined when the crew clears the obstruction, and the overflow stops.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		97	The obstruction between manholes 402 and 400 on the south side of Florence Avenue caused sewage to back up and discharge into the basement at 1516 East Florence Avenue. Approximately 5,250 gallons of sewage entered the basement, of which 250 gallons was recovered from the gutter and 200 gallons was contained in the basement. The remaining 4,800 gallons was pumped from the basement by a plumber into the gutter, flowing into the storm drain at the southeast corner of Florence Avenue and Compton Avenue, eventually reaching the Hooper Avenue Drain, Compton Creek, which discharges into the Los Angeles River. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Upon arrival, we found manholes 402 and 407 backed up and noticed a contractor pumping sewage from the basement onto the street curb. We set up the Vactor at 1500 E Florence Avenue and hydro-cleaned the mainline on Florence Avenue from manhole 400 to 402 to break down a heavy grease stoppage. After waiting for the mainline to dissipate, we continued by chopping and cleaning heavy grease off the gas trap at manhole 400. We then re-cleaned the mainline with the warthog and washed the affected areas with fresh water while vacuuming. All collected sewage was returned to the sewer system. The contractor stated that sewage intermittently drained into the basement at 1516 E Florence Avenue. We notified the complainant and all required agencies, and a George Hills claim form was provided to the complainant for further cleaning services. 	Added Sewer to Preventive Maintenance Program; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause		Added sewer to a 90-day preventive maintenance program. 	90-day	03/07/2025 20:30	Heavy grease	Y	Grease accumulation report was forwarded to the Enviornmental Programs Division for further investigation. 	05/19/2025 07:52	Compton Creek and Los Angeles River	River; Stream/Creek		Compton Creek and Los Angeles River	No impacts. 	Other (specify below)	N/A	N/A	0	N	N											Grease accumulation report was forwarded to the Enviornmental Programs Division for further investigation. 	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	900295	1.0	Work In Progress						Monthly Category 3 Spill	100 North Woodburn Drive	03/13/2025 09:50	03/13/2025 10:28	03/13/2025 09:50				The initial crew arrived at 10:28 A.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. Spill coming out of maintenance hole located at 11500 Sunset Boulevard near Woodburn Drive.	34.06916	-118.469728	Manhole			108	 Spill coming out of maintenance hole located at 11500 Sunset Boulevard near Woodburn Drive. The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system. 	N						108	Other (specify below)	 The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	It was estimated that approximately 108 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.  	Y	34.06916	-118.469728							03/13/2025 11:05	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.	SPILL FLOWRATE AND VOLUME DETERMINATION BASED ON FLOWOUT PICKHOLE OR OPENING DIAMETER OF PICKHOLE OR OPENING 0.75 INCHES HEIGHT OF WATER OUT OF PICKHOLE/OPENING 0.5 INCHES FLOWRATE PER PICKOLE/OPENING (GPM) 1 GPM # OF PICKHOLES/OPENINGS 1 TOTAL FLOWRATE (GPM) 1 GPM DURATION OF SPILL (MINUTES) 75 MINUTES TOTAL FLOW (GALLONS) 108 GALLONS	Debris-General		Gravity Mainline		Vitrified Clay		80		Y			It was estimated that approximately 108 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.  	Inspected Sewer Using CCTV to Determine Cause				03/13/2025 11:05	On Thursday, March 13, 2025 at 9:50 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 100 North Woodburn Drive (TG 631-H2). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 11:05 AM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.		Not at this time	03/13/2025 11:05														Not at this time			Not at this time		Not at this time		On Thursday, March 13, 2025 at 9:50 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 100 North Woodburn Drive (TG 631-H2). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 11:05 AM. The cause of the blockage was attributed to debris accumulation. All necessary clean-up was then performed.  It was estimated that approximately 108 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.    	Not at this time	
8	8SSO10560	Active	Riverside City CS	Riverside City	900300	1.2	Certified	Kevin Street	Wastewater Field Operations Manager	14-MAR-25	26-MAR-25	26-MAR-25	Category 1 Spill	Manhole at 7681 River Gulch x Wagon Trail Road	03/12/2025 12:37	03/12/2025 12:48	03/12/2025 11:20	03/12/2025 15:30	25-1258		Manhole sewer spill was caused by dirt in the line from construction upstream. Single appearance point.	34.00853	117.29147	Manhole			700	Resident noticed the sewer spill coming out of manhole at 11:20 am. Crew arrived at 12:48pm. A berm was placed at the catch basin. Crew noticed mud was coming out of sewer line after relieving the blockage. PW Inspectors tracked the source and found it was coming from a construction upstream.	Y	Spill reached storm drain catch basin which travels thru a concrete pipe to an earthen channel.	220	480	Manhole	480	220	Drainage Conveyance System		Discharge to storm drain catch basin immediately discharging to a storm drain retention basin, discharging to an engineered vegetated flood control channel. 	Y	34.00883	-117.29197	34.00909	-117.29312	34.00941	-117.29284	34.00853	-117.2941	03/12/2025 15:00	Spill volume estimated utilizing photographs of spill area and visual observations of flow from manhole cross referenced to known flow volume from overflowing manholes (See Orange County Spill Estimation Guide) 	Start time was determined based on follow-up conversation with reporting party and their statements as to when spill was detected and when it was absent. Spill end time recorded when blockage was cleared from the line. 	Damage by Others Not Related to Collection System Construction/Maintenance; Debris from Construction		Gravity Mainline		Polyvinyl Chloride (PVC)		3	Because of recent storms approximately 2 days before, downstream retention basin and flood control channel had existing accumulated water within them. discharge through catch basin comingled with these waters.	N	Cleaned Up (specify below); Contained All or Portion of Spill		Portion of spill retained within curb and gutter behind absorbent and dirt berms put in place upon arrival.  Potion of spill collected in catch basin and trash capture trough within catch basin as shown in photo log. 	Added Sewer to Preventive Maintenance Program		Active residential development project.  Construction inspector follow-up up with developer about ensuring no construction debris, soils, and etc are deposited into the sewer system.	N/A	03/12/2025 15:00	Responding technicians documented and accumulation of dirt int he line, likely attributed to ongoing residential construction activity in the immediate area.  	N			Springbrook Wash	Wash		Engineered vegetated flood control channel/wash. 	None	Other (specify below)	receiving areas already access restricted by fencing. 	N/A	0	N	N												
5R	5SSO10845	Active	Red Bluff CS	Red Bluff City 	900301	1.2	Certified	Dusty Brown	Wastewater Collections Supervisor	14-MAR-25	14-MAR-25	14-MAR-25	Category 1 Spill	358 walton ave.	03/13/2025 19:12	03/13/2025 19:25	03/13/2025 18:40	03/14/2025 07:50	25-1302		coming out of manhole at 358 walton ave. 	40.19082	-122.2401	Gravity Mainline; Manhole			390	spill intermittently out of manhole. into roadway.	Y	spill reached storm drain that opens to a dry channel.	0	390	spill reached storm drain that opens to a dry channel.	390	0	Drainage Conveyance System; Paved Surface		local drainage system with an open channel.	N	40.19079	-122.24029							03/13/2025 19:58	combination of area spill calculations and the pick hole calculation method.	start time was from resident notification. spill end time when operators cleared the line.	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Concrete		40	spill was absorbed into open channel.	N	Restored Flow		cleared line with flusher truck. 	Added Sewer to Preventive Maintenance Program; Adjusted Schedule/Method of Preventive Maintenance		increase of frequency of cleaning line. and checking manholes.	3/14/25	03/13/2025 19:58	when flushing line operator noticed FOG and non-flushable wipes.	N			unnamed drainage channel.	Other (specify below)	drainage channel.	drainage channel.	none.	Other (specify below)	none required	Tehama County Enviromental Health.	0	N	N												
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	900315	1.2	Certified	Margaret P. Llagas	Deputy Director 		03-APR-25	03-APR-25	Category 1 Spill	NOT-40201222510 301 VISTA DE LA PLAYA	03/15/2025 16:27	03/15/2025 17:00	03/15/2025 18:25	03/15/2025 18:39	25-1330		THE DISCHARGE ORIGINATED FROM MANHOLE #30 BEHIND THE PROPERTY OF 301 VISTA DE LA PLAYA THAT WAS THE ONLY SPILL APPERANCE POINT. PLEASE SEE ATTACHED PICTURES.	32.8344	-117.28133	Manhole	N/A	THERE WERE NO OTHER SPILL APPERANCE POINTS.	238	THE SPILL EXITED MANHOLE #30 ( 10132738 ) BEHIND 301 VISTA DE LA PLAYA AND HEADED WEST JUST BELOW THE PROPERTY ONTO THE BEACH INTO THE PACIFIC OCEAN.	N	N/A	0	0	THE DISCHARGE POINT TO THE SURFACE WATER THE SPILLEXITED MANHOLE #30 BEHIND 301 VISTA DE LA PLAYA AND WENT INTO THE PACIFIC OCEAN LOCATED DIRECTLY BEHIND THE PROPERTY.	238	0	Other (specify below)	THE FINAL DESTINATION OF THE SPILL WAS THE PACIFIC OCEAN LOCATED DIRECTLY BEHIND 301 VISTA DE LA PLAYA.	THE DISCHARGE EXITED MANHOLE #30 THAT IS LOCATED ON THE PROPERTY AT 301 VISTA DE LA PLAYA AND HEADED WEST INTO THE PACIFIC OCEAN.	Y	32.8344	-117.28133							03/15/2025 18:25	THE SPILL VOLUME ESTIMATIONS WERE CALCULATED USING THE FLOW AND DURATION METHOD.	THE SPILL START TIME WAS WHEN THE CUSTOMER NOTIFIED DISPATCH OF THE BACKUP,AND THE END TIME WAS WHEN THE BLOCKAGE WAS RELIEVED AND CREWS CONFIRMED THE SPILL STOPPED.	Fats, Oil and Grease (FOG)	N/A	Gravity Mainline	N/A	Cast Iron; Other (specify below)	CIPP lined cast iron pipe	49	THE SPILL IMPACTED THE BEACH, THE PUBLIC ACCESS POINT LEADING TO THE BEACH AND SURFACE WATERS (PACIFIC OCEAN).	N	Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow	N/A	CREWS RESPONDED TO SEWER DISCHARGE RESTORED FLOW USING COMBINATION TRUCK, TRACKED FINAL DESTIANTION, NOTIFIED ALL THE PROPER REGULATORY AGENCIES, MITIGATED EFFECTS OF THE SEWER DISCHARGE CCTV MAINS.	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV	N/A	Frequency change from 6 month to 3-month. Area residents will be notified via mail about FOG issues in the area. Food establishments up stream will be visited.   	N/A	03/15/2025 19:00	THERE WAS A GREASE BLOCKAGE IN THE 5  CI lined SEWER PIPE DOWNSTREAM FROM MANHOLE #30.	N	N/A		PACIFIC OCEAN (WINDANSEA)	Ocean	N/A	PACIFIC OCEAN 	N/A	Public Closure; Restricted Public Access	N/A	San Diego county health	3	N	Y	PLEASE INDENTIFY LOCATION IN THE ATTACHMENTS.  AT THE ENTRY POINT @ 105 FERN GLEN & 150 FEET NORTH AND 150 SOUTH. 	BIOLOGICAL INDICATORS									N/A	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	900321	1.2	Certified	David Leamer	Assistant Superintendent		24-MAR-25	24-MAR-25	Monthly Category 3 Spill	355517	02/03/2025 15:59	02/03/2025 16:36	02/03/2025 14:30				See Attached Spill map with Photos.	38.65321	-121.27615	Inside Building or Structure; Lateral Clean Out (Private)		1 Private Cleanout and Inside Building or Structure of 3 apartments	240	See Attached Spill Map with Photos	N	N/A	0				173	Building or Structure; Paved Surface; Unpaved Surface		See attached Spill Map with Photos.	Y	38.65311	-121.27623	38.6531	-121.27629	38.65311	-121.27637	38.6531	-121.27643	02/03/2025 17:40	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Root Intrusion		Gravity Mainline		Vitrified Clay		56	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		SacSewer crews restored flow, CCTV inspected line, cleaned and recovered spill form land and inside structures. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected mainline with CCTV on 2/4/25. Based on findings, SacSewer increased preventative cleaning frequency to 24 months from 48 months.		02/03/2025 19:23	SacSewer found mainline asset backed up causing cleanout to overflow and backup into 3 separate apartment units. Apartment complex is lower than the street. Crew restored flow, recovered spill from land and had cleaning contractor clean and mitigate spill inside structures.		N/A	02/03/2025 19:23														N/A	SacSewer increased preventive cleaning frequency from 48 months to 24 months.	SacSewer increased preventive cleaning frequency from 48 months to 24 months.	N/A	SacSewer inspected mainline with CCTV on 2/4/25.	N/A	SacSewer increased preventive maintenance frequency on 2/5/25.	N/A	N/A	
2	2SSO10095	Active	Benicia City CS	Benicia City	900322	1.2	Certified	John Gant Jr	Maintenance Superintendent	17-MAR-25	07-APR-25	07-APR-25	Category 1 Spill	1740 Francisca Ct	03/17/2025 07:26	03/17/2025 07:40	03/15/2025 10:38	03/17/2025 08:51	25-1350		Spill out of a manhole's pick hole at the end of Francisca Ct in front of 1740 Francisca Ct. 	38.05474	-122.14597	Gravity Mainline; Manhole			20400	Spill exited the manhole pick hole, ran down about 26' to a storm drain inlet	Y	Storm drain inlet in front of 1745 Francisca Ct, 12  storm drain pipe that connects to a 54  storm drain pipe to outfall	2400	0	60  outfall at the end of East 2 nd st	18000	2400	Drainage Conveyance System that discharges to surface water		Spill from pick hole in manhole lid to drain inlet in curb and gutter on cul-de-sac	Y	38.05474	-122.14597							03/17/2025 07:40	Metropolitan Wastewater Dept Reference sheet for estimating sewer spills along with report time and date, and photo.	Metropolitan Wastewater Dept Reference sheet for estimating sewer spills along with report time and date, and photo.	Debris-General; Root Intrusion		Gravity Mainline		Vitrified Clay		60	N/A	N	Cleaned Up (specify below); Restored Flow		Cleared blockage in main and cleaned area with Vactor hydrojet truck	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Cleared blockage with Vactor hydrojet truck. CCTV'd main. Cleared remaining roots. Increase frequency of cleaning line and add root control products. Evaluating for possible replacement.	N/A	03/17/2025 16:30	Found roots at a joint 10 ft in from the manhole. Tissue and general debris was seen when clearing the blockage that appears to have built up on the roots.	N			Carquinez Straights	Other (specify below)	Strait	Strait leading to a bay	N/A	Other (specify below)	N/A	N/A	0	N	N												
5F	5SSO11319	Active	SA-2 Bass Lake CS	Madera County Public Works Department - Special Districts	900328	1.2	Certified	Chad Brown	Utility Manager	17-MAR-25	17-MAR-25	17-MAR-25	Category 1 Spill	Bass Lake WWTF site	03/17/2025 07:00	03/17/2025 07:00	03/16/2025 12:00	03/17/2025 12:26	25-1359		The spill originated from the equalization basin and headworks structure at the WWTF. The majority of the spill was onsite of the WWTF. It would have only actively spilled when the lift station was pumping.  It is assumed that 10% of the spill made it overland to reach the surface water of Slide Creek. The coordinates given are the exact location that 10% of estimated spill would have reached the surface water channel.	37.33927	-119.58211	Other (specify below)	Headworks structure, eq tank 	Some of the flow came from the headworks structure while main lift station was pumping. The other portion of the spill overflowed the equalization basin after it had reached max capacity. 	128200	Any debris that is noticed is onsite of the WWTF. All of the spill that made it overland without percolating into the ground (dirt/gravel/field) was filtered through a pile of woodchips. With this morning's weather events, (.5 + rain) there is no noticeable impact to surrounding area of the spill. There ais also no viable or needed cleanup measure needing attention.	Y	Spill went through the drainage swale on the WWTF site. This drainage swale crosses over 600' of natural dirt, field, and natural terrain before entering into slide creek.	0	0	See attached picture of spill entry into creek. No visible impact.	12800	0	Surface Water; Unpaved Surface		Spill	Y	37.33812	-119.58302							03/17/2025 07:05	Flow estimations are averaged for the historic flow from weekends. Used available SCADA flow monitoring records and available storage capacity in equalization basin until the estimated spill start date/time. Due to heavy rain/snow conditions onsite 3/17/25, no clean up measures were possible due to weather conditions. No impact observed to spill area.	Flow estimations based on actual flow data comprised with estimates based on operational records. Onsite precipitation did not occur until 3 am 3/17/25 so infiltration/percolation rates were estimated at 10%. Sunday was sunny and clear. Spill only occurred intermittently during lift station pump runs. 	Other (specify below)	Power outage occurred and caused a mechanical failure to the automatic transfer switch. This failure inhibited power to the WWTF. The lack of utility power prevented the SCADA and alarm agent from notification.	Other (specify below)	WWTF Plant structure 	Concrete		50	When operators arrived onsite, there was no visible negative impacts to spill area	Y	Other Enforcement Agency Notified; Restored Flow		Restored flow to the WWTF and valved out equalization basin upon operator arrival. Inspect spill location to determine if immediate clean up measures were necessary. On staff electrician evaluated transfer switch failure and had utility power company verify supply power to utility service. Restore all plant operational setpoints. Gather data to comprise flow estimations used in spill report.  	Adjusted Schedule/Method of Preventive Maintenance		Spill corrective action plan was limited to immediate repair to function of the automatic transfer switch. This was a very odd, hopefully isolated event that should not have happened. There is no preventive Maintenace that would have prevented this scenario.  	N/A	03/17/2025 16:06	Upon operator arrival to the facility at the 7:00 am start time, the quickly manually valved flow to the process area to prevent any further spill. It was discovered that the (ATS) automatic transfer switch was faulted and failed in a neutral position. This had happened during a power outage/glitch that fired the back up generator to produce emergency power. In some strange sequence of events, utility power was restored and the backup generator was still producing power. The ATS failed in an open position. This lack of power from either source prevented all of the telemetry notifications from notifying our 24 hour a day on call staff.	N	No further investigation needed. We are having a SCADA professional come evaluate if there could be another optional method for and alarm condition of similar status.		Slide Creek	Stream/Creek		Small seasonal creek	N/A	Other (specify below)	N/A	N/A	0	N	N											No further investigation needed. We are having a SCADA professional come evaluate if there could be another optional method for and alarm condition of similar status.	
4	4SSO10449	Active	Thousand Oaks Municipal Service Center	Thousand Oaks City 	900329	1.2	Certified	Patrick McCulloch	Utilities Maintenance Supervisor 	17-MAR-25	25-MAR-25	25-MAR-25	Category 1 Spill	726 Flaming Star Avenue-Hiking Trail Easement Behind Property	03/15/2025 11:15	03/15/2025 11:30	03/15/2025 10:45	03/15/2025 12:23	25-1326	24-APR-25	Single spill event that surfaced around a manhole structure located off to the side of a dirt hiking trail in easement.	34.2133	118.8948	Manhole; Other (specify below)	Around manhole structure ring/cone. 	Spill appeared out the dirt around manhole structure. Manhole was sealed, so flow escaped from around the grade ring/cone. 	250000	The spill surfaced from the side of a manhole structure, located off to the side of a hiking trail in Wildwood Regional Park. It traveled approximately 400 feet down a steep hiking trail to the North Fork Arroyo Conejo Creek. Spill traveled down an eroded channel in the hiking trail. Several photos can be found in attachments. 	N				It appeared to discharge into two locations of Arroyo Conejo Creek. One location was through heavy brush, while the other was downstream at the creek crossing access point for hikers. Attached are two photos. The location through brush was hard to reach from the creek side, and photo was taken from the hiking trail.	250000	0	Surface Water	Dirt hiking trail located in Wildwood Regional Park. Arroyo Conejo Creek. 	Spill surfaced from the side grade ring/cone of manhole located on hiking trail behind 726 Flaming Star Avenue in Wildwood Regional Park. Spill traveled down the steep hiking trail and went into the North Fork Arroyo Conejo. 	Y	34.2134	118.8962							03/15/2025 20:30	Spill in the field was estimated at 247,500 gallons total based on visually estimated flow rates This estimate was updated to 250,000 gallons based on flow data from the Hill Canyon Treatment plant.  HCTP SCADA Flow Data: Saturday 3/15/2025 (Day of the spill) = 1.09 MGD. Saturday 3/8/2025 (Previous Saturday) = 1.32 MGD. The difference in flow from the previous Saturday compared to the Saturday of the spill event was .23 MGD, or 230,000 gallons.  We also looked at the Sunday flows for the two weekends to compare: Sunday 3/16/2025=1.40 MGD Sunday 3/9/2025=1.38 MGD Sunday flow totals are typically a little higher than Saturday. There was an approximate .02 MGD difference or 20,000 gallons between the compared Sundays.  The final estimate calculated the spill event at 250,000 gallons by using the 0.23 MGD difference between compared Saturdays HCTP daily totals and added the 0.02 MGD deviation observed between the two Sundays. 	The spill start time was initially estimated at 11:15 A.M. when the call was received. However, after reviewing Hill Canyon Treatment Plant SCADA flow data, the start time was revised to 10:45 A.M. to align with observed flow trends. A dip in flow was noted around 10:45 A.M., indicating the start of the spill event. 	Debris from Construction; Debris-General; Inappropriate Discharge to Collection System	Multiple debris items lodged in manhole including white fiberglass piece, four-inch metal fitting, and asphalt chunks. Just upstream of manhole that overflowed, the CIPP liner had failed near the manhole and extend upstream approximately 33 feet. 	Gravity Mainline; Manhole	N/A	Concrete	ACP pipe that was rehabbed with a Cured in Place Liner (CIPP) in 2012/2013. 	50	The spill impacted the hiking trail in Wildwood Regional Park and the Arroyo Conejo Creek, traveling down the trail's steep slope into the North Fork Arroyo Creek.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow		 See Attachment  	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV; Repaired Facilities or Replaced Defect		- Increased visual inspections of manhole A27 where 18  pipe reduces to 12 . Schedule for monthly inspection. - Manhole A27 was replaced with a locking manhole cover to prevent access.  - Visual manhole inspections conducted throughout Unit A and Y interceptor. Long term goal of replacing all manholes through easement with locking lids.  - Planned CCTV inspections of the 2012/2013 CIPP CIP project in Unit A and Y to check on lining condition and to look for any debris. 	Opened maintenance holes in Unit A and Y interceptors upstream and downstream to check for debris. Started CCTV of Unit A interceptor easements. Will require several nights during low flow, and currently ongoing. 	03/20/2025 17:00	The spill was caused by large pieces of debris that clogged manhole A27. We removed a broken piece of white fiberglass/plastic, a 4-inch fitting, and several large pieces of asphalt. The upstream failed liner likely reduced flow into manhole A27, potentially contributing to the accumulation of debris.	Y	We will be televising the Unit A and Y interceptors to identify any additional debris and assess the condition of the CIPP-lined pipes installed during the 2012/2013 CIP project. CCTV inspections of the interceptors will take place at night during low flow periods, with an estimated completion time of about two months.	05/20/2025 17:00	North Fork Arroyo Conejo Creek. 	Stream/Creek	North Fork Arroyo Conejo Creek. 	Creek. 	No observed impacts. 	Public Closure; Restricted Public Access; Temporary Restricted Use	Park Rangers closed access to Wildwood Regional Park, and City staff, along with the Rangers, posted signs along the creek access points in the park. The trail had already been closed on Saturday, March 15, 2025, due to a prior rain event. Park Rangers extended the closure upon discussion with the City. After the City consulted with the Ventura County Environmental Health Division, Park Rangers reopened the trail and removed the signs on Wednesday, March 19, 2025.	Conejo Recreation Park and Park District/Park Rangers. 	3	N	Y	Sample was taken for four consecutive days. Samples taken upstream, at the location spill reached receiving water, and downstream. 	Total Coliform, Fecal Coliform, E. Coli Coliform, Enterococcus, NH3-N, and PH. 									We will be televising the Unit A and Y interceptors to identify any additional debris and assess the condition of the CIPP-lined pipes installed during the 2012/2013 CIP project. CCTV inspections of the interceptors will take place at night during low flow periods, with an estimated completion time of about two months.	
4	4SSO10394	Active	Industry City CS	City of Industry	900330	1.2	Certified	Eric Liu	Civil Engineer	17-MAR-25	02-APR-25	02-APR-25	Category 1 Spill	2305-0656 (1114 Coiner Avenue, Industry, CA)	03/13/2025 13:40	03/13/2025 14:15	03/13/2025 13:30	03/13/2025 15:40	25-1285		CSMD Map Sheet No. 2305 MMS No. 9255947 Manhole No. 656 was overflowing. 	33.99651	117.89516	Manhole			10500	Sewage discharged from Manhole No. 656 into the private storm drain at 1100 Coiner Court, Industry, CA.	Y	Sewage discharged from Manhole No. 656 into the private storm drain at 1100 Coiner Court, Industry, CA, which leads to San Jose Creek-Thompson Creek to U/S San Gabriel River.	0	10500	Sewage discharged from Manhole No. 656 into the private storm drain at 1100 Coiner Court, Industry, CA, which leads to San Jose Creek-Thompson Creek to U/S San Gabriel River.	10500	0	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Sewage discharged from Manhole No. 656 into the private storm drain at 1100 Coiner Court, Industry, CA, which leads to San Jose Creek-Thompson Creek to U/S San Gabriel River.	Y	33.99656	117.89459							03/13/2025 15:25	CWEA SSCSC Manhole Gauge Visual or Eyeball Method	The start time is obtained from the reporting party, and the end time is determined when the crew clears the obstruction and the overflow stops. 	Damage by Others Not Related to Collection System Construction/Maintenance; Fats, Oil and Grease (FOG)	A CSMD sewer mainline was damaged within Union Pacific Railroad (UPRR) right-of-way inside the City of Industry due to ongoing construction in the railroad right-of-way. 	Gravity Mainline		Vitrified Clay		37	Sewage discharged from Manhole No. 656 into the private storm drain at 1100 Coiner Court, Industry, CA, which leads to San Jose Creek-Thompson Creek to U/S San Gabriel River.	N	Other Enforcement Agency Notified; Restored Flow		Hydro-jetted the mainline to break down heavy grease stoppage. Notified all required agencies. 	Other (specify below)	This is an ongoing issue with Santa Fe Railroad and the Division is aware of breached mainline. Mainline will be repaired by San Gabriel Valley Counsil of Governments at 1333 Mayflower Ave #360, Monrovia, CA 91016.	This is an ongoing issue with Santa Fe Railroad and the Division is aware of breached mainline. Mainline will be repaired by San Gabriel Valley Counsil of Governments at 1333 Mayflower Ave #360, Monrovia, CA 91016.	N/A	03/13/2025 15:45	N/A	N			San Jose Creek-Thompson Creek to U/S San Gabriel River	River		San Jose Creek-Thompson Creek to U/S San Gabriel River	N/A	Other (specify below)	No impact. 	N/A	0	N	N												
4	4SSO10403	Active	Lawndale City CS	Lawndale City	900332	1.1	Certified	Eric Liu	Civil Engineer		08-APR-25	08-APR-25	Monthly Category 3 Spill	1593 - 0569 (4622 Manhattan Beach Boulevard, Lawndale, CA)	03/08/2025 13:30	03/08/2025 15:25	03/08/2025 13:00				CSMD Map Sheet No. 1593 MMS No. 9248540 Manhole No. 569	33.88729	-118.35846	Gravity Mainline; Manhole			50	Sewage discharged from Manhole No. 569 and was contained within the gutter. 	N						50	Street/Curb and Gutter (2 3)		Approximately 50 gallons were discharged from Manhole No. 569, which were fully contained and retrieved by the combo truck, then returned to the sewer system. 	N									03/08/2025 15:50	CWEA SSCSC Manhole Gauge	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops. 	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		64	The sewage spill was fully recovered, and the area was cleaned, resulting in no environmental impact.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Upon arrival, manhole 569 had a slight trickle of sewage overflowing into the south side gutter on Manhattan Beach Blvd. The crew set up a combo truck, hydro-jetted the mainline, and cleared the grease stoppage. They washed down and vacuumed the sewage contained in the gutter. All required agencies were notified. 	Added Sewer to Preventive Maintenance Program; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause		Inspected the sewer using CCTV and added it to a 60-day hydro preventive maintenance program. 		03/08/2025 17:30	A non-routine activity involving hydro jetting of sewer lines where inspections have discovered grease, garbage grinds, or sand. Additionally, forward the grease accumulation report to the Environmental Programs Division for further investigation. 		Forward the grease accumulation report to the Environmental Programs Division for further investigation. 	03/11/2025 07:28														Forward the grease accumulation report to the Environmental Programs Division for further investigation. 	Inspected the sewer using CCTV and added it to a 60-day hydro preventive maintenance program. 	Inspected the sewer using CCTV and added it to a 60-day hydro preventive maintenance program. 	N/A	Inspected the sewer using CCTV and added it to a 60-day hydro preventive maintenance program. 	N/A	N/A	N/A	Forward the grease accumulation report to the Environmental Programs Division for further investigation. 	
1	1SSO10037	Active	Healdsburg City CS	Healdsburg City	900343	1.3	Certified	David Hambly	Wastewater Operations Foreman	18-MAR-25	18-MAR-25	18-MAR-25	Category 1 Spill	1406 Lupine Road	03/16/2025 14:53	03/16/2025 15:15	03/16/2025 14:26	03/17/2025 09:19	25-1351		Intersection of Terrace Blvd. and Lupine Rd. See attachments	38.62816	-122.86896	Gravity Mainline			9642	Failure of a valve at the drinking water treatment plant caused excess flow in the sewer to surcharge the system and daylight at the manhole in the intersection of Terrace Blvd. and Lupine Rd. This manhole is in a section of 8  AC pipe that is between 2 sections of 10  AC pipe, causing a restriction at this location. Spill followed the street and gutters to a storm drain inlet and separate storm drain system which empties to Foss Creek. None of the spill was recovered, which occurred during a rain event. No solids were observed leaving the sewer, only liquid. See attachments	Y	The spill was conveyed via the gutter-level storm drain inlet and separate storm drain piping system to Foss Creek. See attachments	0	9642	None, discharge point is covered in vegetation.	9642	0	Drainage Conveyance System that discharges to surface water		The spill was conveyed via the gutter-level storm drain inlet and separate storm drain piping system to Foss Creek.	Y	38.62554	-122.87153							03/16/2025 17:55	Partially covered manhole estimation method, and length of time the drinking water filtration plant was discharging to the sewer. None of the spill was recovered.	Spill start observed by resident and anonymous passerby, both called in to the police department and the call center. Spill end observed by operations staff. Both times correspond to valve failure and shutdown at drinking water treatment plant, the source of the spill.	Flow Exceeded Capacity (Separate Collection System Only); Other (specify below)	Failure of a valve at the drinking water treatment plant caused excess flow in the sewer to surcharge the collection system and daylight at the manhole.	Gravity Mainline		Other (specify below)	Asbestos Cement	72	No solids were observed leaving the sewer. Spill was only liquid, mostly excess flow from the drinking water treatment plant. Impact unknown, but believed to be minimal.	Y	Restored Flow		Spill response included identifying the drinking water treatment plant valve failure and surcharging as the cause of the spill. Once identified, the plant was shutdown and spill flow stopped. None of the spill was recovered.	Repaired Facilities or Replaced Defect		Additional sensors to be installed at the drinking water treatment plant in the lateral system, to identify if there is excess flow due to a plant failure in the future.	1.Completion of sensor installation. 2.Sensor and SCADA alarm testing.	03/16/2025 18:30	Identified the drinking water treatment plant valve failure and surcharging as the cause of the spill. Once identified, the plant was shutdown and spill flow stopped. The manhole is in a section of 8  AC pipe that is between 2 sections of 10  AC pipe, causing a restriction in this location.	N			Foss Creek, Russian River	River; Stream/Creek		Foss Creek is a seasonal drainage that was flowing at the time of the spill during a concurrent rain event. Foss Creek drains to the Russian River.	None	Other (specify below)	None	N/A	0	N	N												
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	900349	1.1	Certified	David Leamer	Assistant Superintendent		24-MAR-25	24-MAR-25	Monthly Category 3 Spill	355854	02/11/2025 13:30	02/11/2025 13:40	02/11/2025 13:00				See Attached Spill map with Photos.	38.61516	-121.35436	Manhole			128	See Attached Spill Map with Photos	Y	See Attached Spill map with Photos.	122				127	Drainage Conveyance System; Street/Curb and Gutter (2 3)		See attached Spill Map with Photos.	Y	38.615	-121.35518	38.613	-121.35524					02/11/2025 13:55	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Root Intrusion		Gravity Mainline		Vitrified Clay		61	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		The SacSewer manhole spilled to a paved area, to the gutter, to a storm drain inlet, entering the drainage conveyance system. The flow was stagnant in the drainage conveyance system. SacSewer crews cleaned the affected aboveground area and recovered the spill on land using a hydro-vacuum truck.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected mainline with CCTV on 2/20/25. Based on findings, SacSewer increased preventative cleaning frequency to 12 months from 24 months.		02/11/2025 16:36	The SacSewer manhole spilled to a paved area, to the gutter, to a storm drain inlet, entering the drainage conveyance system. The flow was stagnant in the drainage conveyance system. SacSewer crews cleaned the affected aboveground area and recovered the spill on land using a hydro-vacuum truck.		N/A	02/11/2025 16:36														N/A	SacSewer increased preventive cleaning frequency from 24 months to 12 months.	SacSewer increased preventive cleaning frequency from 24 months to 12 months.	N/A	SacSewer inspected mainline with CCTV on 2/21/25.	N/A	SacSewer increased preventive maintenance frequency on 2/21/25.	N/A	N/A	
9	9SSO10697	Active	Santa Margarita Water District CS	Santa Margarita Water District	900351	1.5	Certified	Miles Rex	Operations Crew Chief	18-MAR-25	25-MAR-25	25-MAR-25	Category 1 Spill	Corporate Drive and Terrace LaderaRanch	03/17/2025 14:45	03/17/2025 15:00	03/17/2025 14:45	03/17/2025 16:15	25-1367		Coming out of a manhole and went down curb and gutter. Blockage in 8  sewer was caused by a metal grading stake wedged into the line coming from a 6  lateral where it comes in and causing rags and grease to build up and cause a blockage	33.5562	-117.62909	Manhole		Document Attached	1200	Pictures enclosed	Y	Spill went down curb and gutter and entered storm drain 100 yards down the street. Storm drain drains to a contained place Horno Basin	125	1075	o	0	125	Street/Curb and Gutter (2 3)		The spill came out of the manhole and went along curb and gutter about 100 yards away to the storm drain.	Y	33.55614	-117.62909							03/17/2025 15:33	Spill volume was estimated by the flow out of the pick hole which matched our pictures we made using  a spill simulator. 25 GPM was estimated as it matched our picture. The volume was estimated including the time we got call of the incident, when we arrived, and when spill was stopped.	Went from time we received the call from a customer until spill was stopped. 	Debris from Lateral		Manhole		Polyvinyl Chloride (PVC)		23	No major impact	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		we received the call and immediately went to the site. Combo Units were dispatched. As soon as we saw the flow we built sand barriers to stop as much a possible from going into the storm drain. We combo units arrived we positioned one where flow was coming out of the pick hole we began vacuuming anything exiting the sewer and we put other truck downstream to shoot the line and clear the flow. Once clear we sent a CCTV camera to check the line and found a metal grading stick 2 feet long coming out of the 6  lateral from a church and it wedged into out 8  main and caused the pipe to be blocked. Were able to remove object by putting a magnet on a push camera and going through the 6  lateral. Clean up involved vacuuming out storm drain and washing down streets	Repaired Facilities or Replaced Defect		We pulled out metal grading stick blocking the line and now that it is removed there should be no more issues	N/A	03/17/2025 15:45	We found a 2 ft. long piece of metal grading stick coming from customers 6  lateral the wedged into our line causing flow to be decreases and grease and rags to catch on it which caused the overflow	N			Horno Basin	Reservoir		Horno Basin is a holding tank where all storm drains from Ladera Ranch go to. we can pump it to our recycled water system	N/A	Other (specify below)	No restricted access	Santa Margarita Water District	0	N	N												
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	900362	1.0	Work In Progress						Monthly Category 3 Spill	1438 North Doheny Drive                                   	03/18/2025 21:21	03/18/2025 21:56	03/18/2025 21:21				The initial crew arrived at 9:56 P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. Spill coming from around the maintenance hole lid at Doheny Drive n/o Mockingbird Place.	34.09699	-118.390743	Manhole			653	See attached photo	Y	574 gallons of sewage entered a County of Los Angeles owned catch basin located at 1400 Doheny Drive, recovered at maintenance hole located at the intersection of Phyllis Street and Doheny Drive.	574				653	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	It was estimated that approximately 653 gallons of sewage backed out of the sewer system as a result of the blockage, of that amount, 574 gallons of sewage entered a County of Los Angeles owned catch basin located at 1400 Doheny Drive. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.  	Y	34.096471	-118.391806							03/18/2025 22:06	The SSO volume was estimated utilizing a standardized template, which calculates the volume around the ring of the maintenance hole cover.	SPILL FLOWRATE AND VOLUME DETERMINATION BASED ON FLOW FROM AROUND THE RING OF A MH COVER DIAMETER OF MH24INCHES GAP BETWEEN FRAME AND COVER 0.125 BASED ON 1/8  GAP HEIGHT OF WATER AROUND COVER 0.125 INCHES FLOWRATE FROM RING/GAP (GPM)15 GPM TOTAL FLOWRATE (GPM)15 GPM DURATION OF SPILL (MINUTES) 45 MINUTES TOTAL FLOW (GALLONS) 653 GALLONS 	Root Intrusion		Gravity Mainline		Vitrified Clay		98	It was estimated that approximately 653 gallons of sewage backed out of the sewer system as a result of the blockage, of that amount, 574 gallons of sewage entered a County of Los Angeles owned catch basin located at 1400 Doheny Drive. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		On Tuesday, March 18, 2025 at 9:21 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1438 North Doheny Drive (TG 592-H5). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 10:06 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 653 gallons of sewage backed out of the sewer system as a result of the blockage, of that amount, 574 gallons of sewage entered a County of Los Angeles owned catch basin located at 1400 Doheny Drive. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system.  .    The Los Angeles County Department of Public Health was notified and determined that the overflow did not necessitate any b					03/18/2025 22:06	On Tuesday, March 18, 2025 at 9:21 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1438 North Doheny Drive (TG 592-H5). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 10:06 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.		Not at this time	03/18/2025 22:06														Not at this time			Not at this time		Not at this time		On Tuesday, March 18, 2025 at 9:21 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1438 North Doheny Drive (TG 592-H5). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 10:06 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.	Not at this time	
9	9SSO10697	Active	Santa Margarita Water District CS	Santa Margarita Water District	900364	1.3	Certified	Miles Rex	Operations Crew Chief	19-MAR-25	25-MAR-25	25-MAR-25	Category 1 Spill	Eaton and Commons South	03/18/2025 02:40	03/18/2025 02:45	03/18/2025 02:35				Came out of a manhole and went to curb and gutter	33.54797	-117.64429	Manhole			600	Spill went down the street into curb and gutter. went to a storm drain catch basin which we were able to recover 100 gals from.	Y	Curb and gutter to storm drain catch basin to Horno Basin	100	500	All storm drains from here discharge to Horno Basin which is a holding tank we can use for reclaimed water.	600	100	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		The spill went out manhole pick holes to the curb and gutter then traveled about 50 yards to a storm drain catch basin	N	33.5562	-117.62909							03/17/2025 15:30	I arrived and measured amount of liquid that was coming out of manhole and it was an exact match with our picture of 10GPM. We estimated it spilled from 2:35 PM to 3:35 PM. Called customer that reported spill and he says it started 2:35 PM. At 10 GPM for 60 minutes we estimated 600 spilled. We recovered 100 gals from blockages we made on curb and gutter as well as the catch basin flow went into. 	Call from customer and spoke with them and confirmed what time spill started 2:35 PM. and we cleared line and spill was stopped at 3:35 PM	Other (specify below)	where it spilled was a hot spot we normally clean every 6 months. Somehow our CMMS system did not issue WO when it was supposed to and we investigated and found 8 more. We will be mor diligent in tracking. We have approximately 300 hot spots which we are working to reduce .	Gravity Mainline; Manhole		Polyvinyl Chloride (PVC)		23	no big impact	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		When I arrived I immediately started putting dirt berms at the curb and gutter in multiple spots waiting for Combo Trucks to arrive. After spill was stopped we cleaned up curb and gutter as well as the catch basin.	Inspected Sewer Using CCTV to Determine Cause		We will work closely with our CMMS system Mainstar to find out what was the GLITCH why WO'S WERE NOT POPULATING. this LINE HAD BEEN CLEAN 1 YEAR PRIOR.	N/A	03/18/2025 15:35	The spill was caused by grease build up on a hot spot we clean bi- annually, but our CMMS failed to populate this along with 7 other hot spots. This line was cleaned 1 year prior to the spill. spoke with operators to make sure they are cleaning properly and the people who last cleaned this line no longer work here.	N			Horno Basin	Reservoir		Horno Basin is a holding area for all urban runoff from Ladera Ranch. we can pump this water to our recycled water system and use it.	No Impact	Other (specify below)	No Impact	Santa Margarita Water District	0	N	N												
2	2SSO10184	Active	San Rafael SD CS	San Rafael Sanitation District	900369	1.4	Amended	Philip Buckley	Principal Civil Engineer	19-MAR-25	26-MAR-25	26-MAR-25	Category 1 Spill	Jewell and Eucalyptus Intersection	03/15/2025 10:18	03/15/2025 11:55	03/14/2025 09:00	03/15/2025 12:36	25-1328		The home owner at #7 Broadview had noticed the overflow the day before. She had tried to notify the district the day of but could not locate the districts telephone number. she then sent an email to some part of The City Of San Rafael's website.  After no response she had notified the police department the following day. They contacted Roto Rooter who performs our after hours work. Roto Rooter then contacted my boss who then informed me of the spill. Roto Rooter cleared the stoppage. The spill coming from manhole MH735 entered a catch basin CB2155 off of Jewell and Eucalyptus. It traveled underground in a storm water pipe system. Then reached Montecito storm water pump station and was then pumped to the San Rafael Creak which is tied into the San Pablo Bay.	37.97563	-122.51214	Manhole	Spill was coming from edges of manhole and from pick hole of man hole.		4965	The spill came out of the manhole MH735 and flowed down the asphalt to catch basin CB2155. And from catch basin it flowed through the storm water underground  pipe system which fluctuates in sizes ranging from 24  PVC down to 12  PVC all the way up to 60  CMP were it finally goes to 24  RCP and enters the Montecito storm water pump station. The Montecito storm pump station then pumps into the San Rafael Creak which ties into the San Pablo Bay. City has 0.87 inches of rain on 3/14/25 and spill mixed with stormwater runoff after reaching storm drain.  	Y	Underground storm pipe system which fluctuates in sizes ranging from 24  PVC down to 12  PVC all the way up to 60' CMP were it finally goes to 24  RCP and enters the Montecito storm water pump station.	0	0	Montecito storm water pump station. Then pumped to the San Rafael Creek where it then ties into the San Pablo Bay	4965	0	Surface Water		After gravity flow through storm water drainage pipes the spill entered the Montecito Storm Water Pump Station which then discharges to the San Rafael Creek	Y	37.97563	-122.51552							03/15/2025 11:57	We counted the number of upstream lateral connections and calculated the amount based on the length of time the manhole was actively spilling	The spill started Friday at 9 am and stopped on Saturday at 11:57 am.  The initial estimation called into OES as based on 1680 minutes spill was active.  However the spill was actually active for 1677 minutes and thus the spill amount released was reduced by 13 gallons.  Initially it was called in 4,965 gallons but after recalculating the spill amount was updated to 4,952 gallons.  	Other (specify below); Pipe Structural Problem/Failure - Controls	We identified a pipe upstream with a large void.  The debris and pieces of pipe from that void traveled downstream and created a blockage	Gravity Mainline		Vitrified Clay		79	no visual impacts 	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow	Notified Marin County Environmental Health Services. We had rain off and on the week before and during that weekend but it did not cause the spill	After clearing the blockage, our after hours contractor Roto-Rooter washed down the affected areas and collected all wash down water.  	Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Plan Rehabilitation or Replacement of Sewer	The District has coordinated with the City to make changes to the City website to redirect residents to the District website to report spills. The changes should make it easier for residents to report spills thereby reducing District response time. 	Currently talking to contractors for quotes to replace the pipe with the void	City website updates have been completed for spill reporting.   We anticipate the pipe replacement to be completed in April 2025 pending contractor scheduling which has not been finalized.	03/15/2025 12:36	The week following the spill we televised the pipe upstream of where the spill occurred and located a void.	N			San Rafael Creek	Stream/Creek		It's a tidal creek that drains the City and flows to San Pablo Bay	no impacts to aquatic life	Other (specify below)	no public access	Marin County Environmental Health Services	0	N	N												
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	900370	1.2	Certified	Ameal McLaurin	Sewer Supervisor 2	19-MAR-25	02-APR-25	02-APR-25	Category 1 Spill	1101 Fleet Road, Oakland Ca	03/18/2025 07:51	03/18/2025 08:20	03/18/2025 08:35	03/18/2025 09:29	25-1375		Sewer lateral (private) overflowing in front of the property.	37.80848	-122.22454	Lateral Clean Out (Private)			2048	Sewer lateral (private) overflowing in front of the property. The sewage was flowing to the street and gutter areas and to the nearest storm inlet.	Y	The sewage flowed to Wildwood and Trestle Glen creeks; it is an underground 12  (RCP) reinforced concrete pipe.	0	2048	The sewage flowed to Wildwood and Trestle Glen creeks; it is an underground 12  (RCP) reinforced concrete pipe.	2048	0	Drainage Conveyance System; Street/Curb and Gutter (2 3); Unpaved Surface		Sewer lateral (private) overflowing in front of the property.	Y	37.8085	-122.2245							03/18/2025 08:38	Start time was based on eyewitness account. End time was based on responding crew restoring the flow in the mainline.	16 GPM x 128 minutes = 2048 Gallons.	Root Intrusion		Gravity Mainline		Vitrified Clay		125	Sewer lateral (private) overflowing in front of the property.	N	Cleaned Up (specify below); Restored Flow	Staff washed and cleaned affected area in the street.   	Staff washed and cleaned affected area in the street.  	Added Sewer to Preventive Maintenance Program; Inspected Sewer Using CCTV to Determine Cause		Sewer line was added to six-month hydro high frequency maintenance program. #1605002- CCTV inspection, work order# 1603656, found root intrusion in the mainline to have been the cause of the spill.	Sewer line was added to six-month hydro high frequency maintenance program. #1605002- CCTV inspection, work order# 1603656, found root intrusion in the mainline to have been the cause of the spill.	03/18/2025 10:00	CCTV inspection found tree roots to the cause of the overflow.	N			Lake Merritt	Lake		Lake.	None.	Other (specify below)	N/A	N/A	0	N	N												
4	4SSO11388	Active	County Sanitation District Joint Outfall CS	Los Angeles Cnty Sanitation Districts	900374	1.2	Certified	Darrell Hatch	Collection Systems Manager	19-MAR-25	28-MAR-25	28-MAR-25	Category 1 Spill	Joint Outfall C - Unit 4A (Joint Outfall System)	03/14/2025 22:46	03/14/2025 23:07	03/14/2025 21:22	03/15/2025 02:47	25-1321		The spill originated from a City of Long Beach sewer manhole, located at coordinates 33.7872582� N, -118.1376024� W in the alley between Pacific Coast Highway and East Malta Street, approximately 445 feet west of the intersection with Park Avenue.  This manhole is directly tributary to the Joint Outfall C-Unit 4A Trunk Sewer and connects to the LACSD sewer system at MH C 0686.	33.7872582	-118.1376024	Manhole			475	The spill area extended approximately 30 feet northwest of the City of Long Beach sewer manhole, with an approximate width of 10 feet along the centerline of the alley. A portion of the spill traveled into a square grated storm drain catch basin at the northwest end of the alley.	Y	The spill traveled aboveground approximately 30 feet northwest into a square grated storm drain catch basin at the end of the alley.  This catch basin discharges to the Bouton Creek storm drain channel that eventually flows to the Los Cerritos Channel.  An estimated 100 gallons of wastewater likely reached the Los Cerritos Channel.	0	100	The spill from the City of Long Beach sewer manhole entered Bouton Creek from a storm drain outlet located at approximate coordinates 33.787334� N, -118.137702� W.	100	375	Drainage Conveyance System that discharges to surface water; Other (specify below); Paved Surface	Alleyway	The spill originated from a City of Long Beach sewer manhole, located at coordinates 33.7872582� N, -118.1376024� W in the alley between Pacific Coast Highway and East Malta Street, approximately 445 feet west of the intersection with Park Avenue.  This manhole is directly tributary to the Joint Outfall C Unit 4A Sewer and connects to the LACSD sewer system at MH C 0686.	Y	33.787258	-118.137608	33.787315	-118.137684	33.777593	-118.103886			03/14/2025 23:07	Estimations are based on observations, photos, videos, and measurements taken at the spill site. See Attachment	See Attachment	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		76	The spill reached a storm water catch basin which discharges to Bouton Creek that eventually flows to the Los Cerritos Channel and the Pacific Ocean via the Alamitos Bay	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Initially, City of Long Beach personnel set up an earthen containment berm between the overflow and the storm drain catch basin.  LACSD staff vacuumed up wastewater from MH C 0686 providing capacity for much of the pooled wastewater to return to the collection system through the local manhole.  See Attachment	Adjusted Schedule/Method of Preventive Maintenance; Other (specify below)	Installation of a Smartcover flow level sensing device	To protect against further spills of this nature, LACSD will increase the cleaning frequency of the sewer and will install a Smartcover flow level sensing device to monitor sewer levels to alert staff to any future surcharge conditions before a spill occurs.	See 10b	03/15/2025 05:40	The blockage was caused by grease accumulation in the LACSD sewer line between MHs C 0686 and C 0113.  See Attachment	N			Bouton Creek, Los Cerritos Channel, Alamitos Bay, Pacific Ocean	Ocean; Other (specify below)	Bouton Creek is a storm drain channel tributary to the Los Cerritos Channel.  The Los Cerritos Channel is a concrete-lined channel that connects to the Pacific Ocean through  Alamitos Bay. 	Bouton Creek is a storm drain channel tributary to the Los Cerritos Channel.  The Los Cerritos Channel is a concrete-lined channel that connects to the Pacific Ocean through Alamitos Bay. 	None	Other (specify below)	none	Long Beach Environmental Health	0	N	Y	Sample 1: MH C 0686,coordinates (33.7864684 -118.13654)  Sample 2: Bouton Creek coordinates (33.78731 -118.13778) Sample 3: Los Cerritos Channel, 100 feet upstream of the Bouton Creek outlet coordinates (33.77807 -118.10379) Sample 4: Los Cerritos Channel, 100 downstream of the Bouton Creek outlet (33.7773 -118.10380)  	Total Coliforms, Fecal Coliforms, Enterococcus, E. Coli, and ammonia										
8	8SSO10560	Active	Riverside City CS	Riverside City	900379	1.3	Certified	Kevin Street	Wastewater Field Operations Manager	20-MAR-25	27-MAR-25	27-MAR-25	Category 2 Spill	2275 Northbend Street	03/17/2025 14:32	03/17/2025 15:06	03/16/2025 00:00	03/17/2025 22:52	25-1372		Spill originated from manhole in back corner of vacant lot. See attachment. 	33.99694	-117.3672	Manhole			155147	Spill from manhole into vacant dirt lot due to vandalism from an encampment around and in the vicinity of the overflowing manhole. Spill pits were dug to maintain the flow. Volume was retrieved from the spill pits. Some volume saturated into dirt. Portion of the dirt to be scraped and removed from the lot for disposal. See Attachments. 	N						2300	Unpaved Surface		Spill from manhole into vacant dirt lot due to vandalism from an encampment around and in the vicinity of the overflowing manhole. Spill pits were dug to maintain the flow within the vacant lot. See photos attached. 	Y	33.99694	-117.3672	33.99699	-117.36736					03/18/2025 11:02	Code Enforcement Inspector's statement of arrival to spill location between 12-1pm on 3/17/25, stated that the manhole may have been spilling for a day or days prior to finding based on the amount of spill pooling in the dirt lot. Estimated start time to 36hrs (1.5 days) prior to the initial finding. Flow estimates taken from videos of the flow in a measured stream which included a tape measure and a floating object. Spill durations were also taken into account due to stopping and restarting of the spill. Pits were dug in the dirt lot to maintain the spill flow. After the spill was stopped on 3/18/25 @ 1102, the spill pits were emptied. Based on the size of the pits, the volume estimated to have been recovered was 2300 gallons. Some volume is presumed to have soaked into the dirt. Some dirt is to be scraped from the lot and removed for proper disposal.  See Attachment for more and photos. 	See attachment. 	Vandalism (specify below)	Plug in the manhole caused the spill. Homeless encampment around and in the vicinity of the manhole from which the spill emerged. Items removed from the manhole include trash, clothes, shoes, trees, car axles, lanterns, bamboo shades, metal strips and bars, a bike tire, and various other debris. See photos. 	Manhole		Vitrified Clay		65	Spill flow was into a vacant dirt lot. Spill pits were dug to hold some volume of the spill. After the manhole blockage was cleared and flow was restored, the spill pits were pumped out. An estimated volume of 2300 gallons was recovered from the pits. Some volume did seep into the dirt. Some of the dirt from the lot will be scraped and disposed of. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Spill pits were dug to hold some volume of the spill. After the manhole blockage was cleared and flow was restored, the spill pits were pumped out. An estimated volume of 2300 gallons was recovered from the pits. Some volume did seep into the dirt. Some of the dirt from the lot will be scraped and disposed of. Flow to the spilling manhole was diverted with the assistance of septic haulers. They were able to pump out of one manhole and decant into an adjacent manhole. The two manholes were within different sections of the system and did not feed into one another, therefore making it safe to decant into. 	Inspected Sewer Using CCTV to Determine Cause; Repaired Facilities or Replaced Defect		Inspected sewer using CCTV to locate the blockage on 3/17/25. After the manhole was cleared on 3/18/25, a contractor repaired the damages and installed a locking cover on the manhole to help prevent future vandalism. 	See attached photos of repaired manhole with locking cover. 	03/18/2025 17:59	From the statement obtained by the Code Enforcement Officer who reported the spill, there has been an ongoing homeless problem in the area immediately around the manhole where the spill emerged. It is believed that the homeless encampment was using that manhole as a trash receptacle. The trash buildup created a large blockage which then led to the spill. 	Y	The lines immediately downstream from the manhole involved in this spill all pass-through Fairmount Park, where there is a high potential for root intrusion, and with-it conditions for another blockage if trash were to collect on any roots. Cleaning efforts for these downstream lines will take place from 3/25/25 to 3/27/25. CCTV will begin on the downstream lines beginning 3/26/25 to look for any areas of trash buildup and blockage and aid the cleaning efforts. 	03/27/2025 07:43										N												The lines immediately downstream from the manhole involved in this spill all pass-through Fairmount Park, where there is a high potential for root intrusion, and with-it conditions for another blockage if trash were to collect on any roots. Cleaning efforts for these downstream lines will take place from 3/25/25 to 3/27/25. CCTV will begin on the downstream lines beginning 3/26/25 to look for any areas of trash buildup and blockage and aid the cleaning efforts. 	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	900382	1.1	Certified	David Leamer	Assistant Superintendent		24-MAR-25	24-MAR-25	Monthly Category 3 Spill	356452	02/27/2025 13:49	02/27/2025 14:18	02/25/2025 17:00				See Attached Spill map with Photos.	38.57413	-121.3742	Lateral Clean Out (Public)			982	See Attached Spill Map with Photos	Y	See Attached Spill map with Photos.	976				981	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		See attached Spill Map with Photos.	Y	38.57401	-121.37417	38.57333	-121.37484					02/27/2025 14:18	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Root Intrusion		Gravity Mainline		Vitrified Clay		64	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		A SacSewer cleanout spilled onto a paved surface, sidewalk, curb, and gutter and flowed to a storm drain inlet, entering the drainage conveyance system. Entry point to drainage conveyance channel � presence of sewage detected. 190 feet Downstream of entry point to drainage conveyance channel � no presence of sewage detected. The drainage conveyance system had light water with stagnant flows. SacSewer crews broke the stoppage in the lower lateral. SacSewer M&O used a hydro-vacuum truck to rinse and vacuum all above-ground surfaces in contact with the spill. Crews also hydro-cleaned the affected SD system from the storm drain. Crews flushed the remaining drainage conveyance system from the storm drain inlet to a dual containment dam in the drainage conveyance channel with dechlorinated water. Crews recovered the flushing water and spill from the containment dam and pumped it to SacSewer manhole.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected mainline with CCTV on 3/7/25. Based on findings, SacSewer increased preventative cleaning frequency to 24 months from 48 months.		02/27/2025 23:30	A SacSewer cleanout spilled onto a paved surface, sidewalk, curb, and gutter and flowed to a storm drain inlet, entering the drainage conveyance system. Entry point to drainage conveyance channel � presence of sewage detected. 190 feet Downstream of entry point to drainage conveyance channel � no presence of sewage detected. The drainage conveyance system had light water with stagnant flows. SacSewer crews broke the stoppage in the lower lateral. SacSewer M&O used a hydro-vacuum truck to rinse and vacuum all above-ground surfaces in contact with the spill. Crews also hydro-cleaned the affected SD system from the storm drain. Crews flushed the remaining drainage conveyance system from the storm drain inlet to a dual containment dam in the drainage conveyance channel with dechlorinated water. Crews recovered the flushing water and spill from the containment dam and pumped it to SacSewer manhole.		N/A	02/27/2025 23:30														N/A	SacSewer increased preventive cleaning frequency from 48 months to 24 months.	SacSewer increased preventive cleaning frequency from 48 months to 24 months.	N/A	SacSewer inspected mainline with CCTV on 3/7/25.	N/A	SacSewer increased preventive maintenance frequency on 3/10/25.	N/A	N/A	
8	8SSO10617	Active	Eastern Municipal Water District CS	Eastern Municipal Water District	900392	1.1	Certified	Ken Tagney	Director of Water Reclamation		24-MAR-25	24-MAR-25	Monthly Category 3 Spill	McWade Avenue, Homeland	03/19/2025 21:00	03/19/2025 21:30	03/19/2025 21:00				The spill was coming out of pick hole from access lid to sewer line. 	33.740337	-117.110605	Manhole			90	The spill flowed on the street and V ditch until stopping at the intersection of McWade and Guthridge. 	N						90	Street/Curb and Gutter (2 3); Unpaved Surface		The spill destination was at the McWade Ave. and Guthridge Ln. 	Y	33.740326	-117.110953							03/19/2025 22:30	The spill volume estimation was derived by using the estimated discharge rate and multiplying that by the duration of the spill from start to finish. EMWD collections crews are trained in visual spill estimation as well as the utilization of filed guides to further aid in spill estimation. 	Discharge rate, spill start time and end time where used in the spill estimation. 	Fats, Oil and Grease (FOG)		Manhole		Polyvinyl Chloride (PVC)		34	Limited access to the are affected by the SSO while crews restored flow and cleaned up the affected area. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Cleanup of the road and V ditch affected by the spill was accomplished by using water to wash the area down and collecting all wash water and SSO material with a vacuum truck. 	Other (specify below)	Cleaned pipe and restored flow	EMWD has a community outreach program that helps to education the public about what can and can't go down the drains. 		03/20/2025 00:00	Spill was caused by a blockage in the line as a result of a buildup of FOG in the line. 		None. 	03/20/2025 00:00														None. 	None.	None. 	None. 	N/A	N/A. 	N/A. 	None. 	None. 	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	900399	1.0	Work In Progress						Monthly Category 3 Spill	1525 North San Remo Drive	03/20/2025 14:18	03/20/2025 15:04	03/20/2025 14:18				The initial crew arrived at 3:04 P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. Spill coming from maintenance hole located at Deste Drive easement.	34.058	-118.4999279	Manhole			126	See attached	N						126	Other (specify below); Unpaved Surface	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	It was estimated that approximately 126 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up was returned back into the sewer system.   	Y	34.058	-118.499279							03/20/2025 15:20	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.	SPILL FLOWRATE AND VOLUME DETERMINATION BASED ON FLOWOUT PICKHOLE OR OPENING DIAMETER OF PICKHOLE OR OPENING 0.75 INCHES HEIGHT OF WATER OUT OF PICKHOLE/OPENING 1 INCHES FLOWRATE PER PICKOLE/OPENING (GPM) 2 GPM # OF PICKHOLES/OPENINGS 1 TOTAL FLOWRATE (GPM) 2 GPM DURATION OF SPILL (MINUTES) 62 MINUTES TOTAL FLOW (GALLONS) 126 GALLONS	Root Intrusion		Gravity Mainline		Vitrified Clay		76	It was estimated that approximately 126 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up was returned back into the sewer system.  	N	Restored Flow; Returned All Spill to Sanitary Sewer System		On Thursday, March 20, 2025 at 2:18 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1525 North San Remo Drive (TG 631-D3). A CWCD crew was immediately dispatched to the incident location, and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 3:20 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 126 gallons of sewage backed out of the sewer as a result of the blockage. The crew was able to establish containment and subsequently the entire back up was returned back into the sewer system.    The Los Angeles County Department of Public Health was notified and determined that the overflow did not necessitate any beach closures. The sewer location where the backup occurred will be televised to determine the exact cause and to determine th					03/20/2025 15:20	On Thursday, March 20, 2025 at 2:18 PM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 1525 North San Remo Drive (TG 631-D3). A CWCD crew was immediately dispatched to the incident location, and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage and the backup ceased at 3:20 PM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  		Not at this time	03/20/2025 15:20														Not at this time			Not at this time		Not at this time			Not at this time	
2	2SSO10170	Active	Richmond City CS	Richmond City	900404	1.4	Certified	Mary Phelps	Water Resource Division Manager	21-MAR-25	02-APR-25	02-APR-25	Category 1 Spill	7th St. and Ripley Ave 	03/18/2025 12:40	03/18/2025 13:00	03/18/2025 12:40	03/18/2025 13:37	25-1383		SSO discharge from pavement on public street curb. Did enter storm drain collection system. 	37.94037	-122.36288	Gravity Mainline			500	Spill onto paved street curb, gutter, and storm drain 	Y	I9CD044	475	25	Storm drain inlet 	2375	451	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		SSO along 7th. Blockage at 188ft going down 7th. 	Y	37.94011	-122.36266							03/18/2025 13:50	Operator training method of rate of flow at time of discharge, area of wetness in gutter and paved street (LXWXH).	Start time based on residential notification. End time based on time flow stopped discharging from pavement. 	Debris-Rags; Fats, Oil and Grease (FOG)		Lower Lateral		Vitrified Clay		50	No impact. Area completely contained and returned to POTW.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow		Spill 95% contained and returned. Area sanitized and cleaned.	Other (specify below)	Cleaned up area and returned all of spill to sanitary sewer.	Community Outreach on FOG.	NA 	03/21/2025 12:31	Blockage at 188ft due to FOG	N			Castro Creek 	Stream/Creek		Creek to SF Bay 	NA	Other (specify below)	NONE	State of CA 	0	N	N												
5F	5SSO10744	Active	Mariposa PUD CS	Mariposa PUD	900409	1.1	Certified	Susan Wages	General Manager		04-APR-25	04-APR-25	Category 1 Spill	Monarch Motel, 5059 State Highway 140	03/20/2025 20:30	03/20/2025 21:30	03/20/2025 20:15				Pictures of spill area on the following morning	37.48637	-119.96741	Lateral Clean Out (Private)			800	Picture of spill boundary.	Y	20 foot long storm drain, lower end of parking lot.	0	0	Spill did not reach surface water.	0	0	Drainage Conveyance System; Paved Surface; Unpaved Surface		Spill ran down paved parking area to the storm drain inlet and exited the outlet 20 feet later.  Spill did not reach surface water.  Dissipated quickly into soil.	N	37.48638	-119.96742							03/20/2025 22:00	Estimate based on flow from 4 inch pipe and time.	Start time was based on pager notification and end time based on employee calcalation	Debris from Lateral; Debris-wipes/Non-disposables		Lower Lateral; Manhole		Polyvinyl Chloride (PVC)		20	Impacted the lower level of the motel and reached the storm drain.	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow	cleaned paved areas and disposed of paper debris with vacuum trailer	attempted to contain spill to parking lot and remove debris to regain flow.	Other (specify below)	Notified owner to post signs in hotel rooms that occupants are not to flush disposable wipes	Printed notifications on billing cards.	continue to educate the public on the hazard of flushable wipes	04/04/2025 15:51	Flushable wipes	Y	Flushable wipes are become more of a problem.	06/30/2025 16:11	Mariposa Creek	Stream/Creek		Mariposa Creek is seasonal and about 4 feet wide at the time of the incident above the creek	None	Temporary Restricted Use		MPUD	1	N	N											Flushable wipes are become more of a problem.	
2	2SSO10170	Active	Richmond City CS	Richmond City	899527	2.3	Certified	Mary Phelps	Water Resource Division Manager	06-FEB-25	21-MAR-25	21-MAR-25	Category 1 Spill	2714 Pierson Ave	02/04/2025 09:05	02/04/2025 09:05	02/04/2025 09:05	02/04/2025 10:28	25-0568	21-MAR-25	SSO discharge from manhole to paved street, curb and gutter, did enter storm water collection system. Event was wet weather/storm associated. See attached photos.	37.91605	-122.34194	Manhole			51845	Spilled onto paved street, curb and gutter.	Y	Manhole ID #E11MH3677 spilled onto paved street, curb and gutter, entered storm drain conveyance system, out to Meeker Slough Outfall and Meeker Slough Outfall Downstream.	0	0	Manhole ID# E11MH3677= 51,845 gallons out to Meeker Slough Outfall	51845	0	Surface Water		See attached map	Y	37.91605	-122.34194	37.91473	-122.3442					02/04/2025 21:32	Onsite flow observation and monitoring based on operator training. 	Onsite observation and monitoring. 	Rainfall Exceeded Design, I and I (Separate Collection System Only)		Manhole		Vitrified Clay		50	See attached photos and map	Y	Mitigated Effects of Spill (specify below)		Signage posted at spill site, restricted traffic, and access. unable to clean spill due to extreme storm event. 	Added Sewer to Preventive Maintenance Program; Plan Rehabilitation or Replacement of Sewer		Possible rehabilitation of sewer	Ongoing	02/04/2025 21:45	Hydraulic overloading due to extreme storm event. 	Y	Evaluation of possible rehabilitation of sewer	02/04/2025 21:45	SF Bay	Ocean; Slough		Meeker Slough to SF Bay	None	Restricted Public Access		N/A	0	N	Y	Meeker Slough - See attached map and Photos	BOD, TSS, Ammonia, and Fecal Coliform.									Evaluation of possible rehabilitation of sewer	
2	2SSO10170	Active	Richmond City CS	Richmond City	899522	2.1	Certified	Mary Phelps	Water Resource Division Manager	06-FEB-25	21-MAR-25	21-MAR-25	Category 1 Spill	2157 Meeker Ave	02/04/2025 08:40	02/04/2025 08:40	02/04/2025 08:40	02/04/2025 09:27	25-0564	21-MAR-25	SSO discharge from manhole to paved street, curb and gutter, did enter storm water collection system. Event was wet weather/storm associated. See attached photos.	37.92051	-122.34836	Manhole			90300	Spilled onto paved street, curb and gutter.	Y	As a result of hydraulic overloading associated with extreme storm event -Manhole ID: F11MH1533 spilled onto paved street, curb and gutter entered storm drain conveyance system out to Parr Canal Outfall. 	0	0	Manhole ID: F11MH1533= 90,300 gallons to Parr Canal Outfall 	90300	0	Drainage Conveyance System that discharges to surface water; Surface Water		See attached. 	Y	37.92051	-122.34836	37.91967	-122.36256					02/04/2025 21:48	Onsite visual flow monitoring. Observations based on operator training. 	SCADA data from wastewater treatment plant. Onsite visual observations	Flow Exceeded Capacity (Separate Collection System Only); Rainfall Exceeded Design, I and I (Separate Collection System Only)		Gravity Mainline; Manhole		Vitrified Clay		50	See attached area map. 	Y	Mitigated Effects of Spill (specify below)		Posted signage at spill site restricting traffic and access. 	Adjusted Schedule/Method of Preventive Maintenance		Evaluation of possible sewer rehabilitation. 	ongoing	02/04/2025 22:15	Hydraulic overloading due to extreme storm event. 	N			SF Bay	Ocean; Slough		Parr Canal to SF Bay	None	Restricted Public Access		State of California	0	N	Y	Parr Canal - See attached map. 	BOD, TSS, Ammonia, and Fecal Coliform										
2	2SSO10170	Active	Richmond City CS	Richmond City	899526	2.1	Certified	Mary Phelps	Water Resource Division Manager	06-FEB-25	21-MAR-25	21-MAR-25	Category 1 Spill	2300 Cutting 	02/04/2025 09:09	02/04/2025 09:09	02/04/2025 09:09	02/04/2025 09:19	25-0562	21-MAR-25	SSO discharge from manhole to street curb and gutter. Unable to contain due to extreme storm event. See Attached.	37.9249	-122.34732	Manhole			115350	Spill onto paved street and gutter	Y	Stormwater ID G11SS001 and G11D002 	0	0	Manhole ID G11MH2456, G11MH2455, G11MH2457	115350	0	Surface Water		Hydraulic overloading due to extreme storm event. Spill reached Meeker Slough. See attached. 	Y	37.9249	-122.34732	37.91476	-122.34419					02/04/2025 19:55	Onsite flow monitoring. Visual observations based on operator training. 	SCADA data from wastewater treatment plant. Onsite visual observations and monitoring. 	Flow Exceeded Capacity (Separate Collection System Only); Rainfall Exceeded Design, I and I (Separate Collection System Only)		Gravity Mainline		Vitrified Clay		50	See attached photos and map. 	Y	Mitigated Effects of Spill (specify below)		Signage posted around spill site to restrict traffic and access. Unable to clean up spill due to extreme storm event. 	Added Sewer to Preventive Maintenance Program; Plan Rehabilitation or Replacement of Sewer		Possible rehabilitation of sewer. 	ongoing	02/04/2025 22:00	Hydraulic overloading due to extreme storm event. 	N			SF Bay	Ocean; Slough		Meeker Slough to SF Bay	None	Restricted Public Access		State of California	0	N	Y	See attached photos and map. 	BOD, TSS, Ammonia, and fecal Coliform										
6B	6SSO11143	Active	Eastern Sierra CSD CS	Eastern Sierra CSD	900412	1.4	Certified	steve nixon	Chief Plant Operator	01-APR-25	01-APR-25	01-APR-25	Category 2 Spill	Field east of Sunland Road	03/21/2025 16:44	03/21/2025 17:15	03/21/2025 16:44	03/22/2025 12:14			Overflow was in a field east of Sunland Drive.	37.359402	-118.401839	Gravity Mainline			37500	Overflow was contained in a Slew.	N						33500	Unpaved Surface		Spill occured in a field east of Sunland Drive. Overflow was contained in a Slew which measured approximately 16,512 sq/ft.	Y	37.359402	-118.401839							03/21/2025 19:00	Used the manhole overflow chart and determined the overflow to be 255gpm for approximately 155 minutes.	information from the person who notified us of the overflow.	Vandalism (specify below)	Someone removed 2 manhole lids and dumped logs, tree branches, dirt and trash into the collection system.	Gravity Mainline; Manhole		Vitrified Clay		47	Spill was contained in a Slew and was pumped back into the collection system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Spill was contained in a Slew. We used a Trash pump and Vacum truck to pump the contained spill back into the sewer.	Other (specify below)	it was vandalism.	Going to purchase some locking manhole lids.	Locking manhole lids will be purchased as soon as possibel.	03/24/2025 14:00	2 manhole lids were removed and debris was dumped into collection system.	N												N													
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	900413	1.2	Certified	Kent Vian	Asst. Deputy Director		14-APR-25	14-APR-25	Monthly Category 3 Spill	NOT-40201224866-4607 HINSON PL.	03/22/2025 12:23	03/22/2025 12:50	03/22/2025 12:20				THE SPILL ORIGINATED FROM MANHOLE #381 EQ#10765555, TRAVELED DOWN SOUTHWEST BOUND INTO CANYON AREA AND SETTLED INTO THE DRY SOIL GPS COORDINATES POINT ARE 32.76135-117.07833.	32.76135	-117.07834	Gravity Mainline; Manhole	N/A.	N/A	375	THE SPILL BOUNDARIES WERE THE CANYON AREA WITH SETTLE INTO THE SOIL. 	N	THE SEWER SPILL DID NOT TRAVEL INTO THE STORM SYSTEM.	0				0	Other (specify below)	SPILL DESTINATION WAS HEAVILY WOODED CANYON AREA.	THE SPILL DESTINATION WAS DOWN SOUTHWEST BOUND THE CANYON AND SETTLED INTO THE SOIL. GPS COORDINATES ARE 32.76135-117.07833.	Y	32.7614	-117.07826							03/22/2025 15:30	THE ESTIMATION IS CALCULATED BY VISUAL METHOD.	THE SPILL START TIME IS WHEN THE DISPATCHER RECEIVES THE CALL FROM CONSUMER REPORTING THE SPILL.	Root Intrusion	N/A	Gravity Mainline; Manhole	N/A	Vitrified Clay	N/A	96	THE SPILL IMPACT WAS TO THE DRY CANYON AREA. 	N	Cleaned Up (specify below); Restored Flow	N/A	CREWS RESPONDED, INVESTIGATED, RELIEVED, TRACK DOWN FINAL DESTINATION, AND CALLED CCTV THE MAIN.	Inspected Sewer Using CCTV to Determine Cause	N/A	Frequency change from 6 to 3 month expedite CIp Job from 2029 upsize from 6in to 8in.		03/22/2025 15:30	THE SPILL WAS CAUSED BY ROOTS INTRUDING INTO THE MAIN PIPE.		NOT AT THIS TIME.	03/23/2025 09:12														N/A	Expedite CIp Job from 2029 upsize from 6in to 8in.	Frequency change from 6 to 3 month	Yes, upsize from 6in to 8in.	N/A	Expedite CIp Job from 2029	Yes, see doc1 4607 HINSON PL.	N/A	NOT AT THIS TIME.	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	900415	1.3	Certified	Margaret P. Llagas	Deputy Director 		08-APR-25	08-APR-25	Category 1 Spill	NOT-40201224806- 6200 RIVERDALE ST.	03/23/2025 10:16	03/23/2025 10:39	03/23/2025 10:15	03/23/2025 11:53	25-1463	02-APR-25	THE SPILL ORIGINATED FROM MANHOLE IN THE STREET, LOCATED AT 6200 RIVERDALE ST. 	32.78773	-117.09963	Manhole	N/A	N/A	210	THE SPILL BOUNDARIES WERE THE SPILL EXITED THE MANHOLE AT 6200 RIVERDALE ST. AND TRAVELED SOUTHWEST, WHERE THE SPILL ENTERED THE SAN DIEGO RIVER TO THE WEST OF 6216 FAIRMOUNT AVE.	Y	THE SPILL ENTERED THE INLET OF AN 18  CONCRETE RCP PIPE THAT FLOWED INTO A 48  RCP PIPE, AND THE OUTFALL WAS INTO THE SAN DIEGO RIVER.	50	0	THE DESCRIPTION OF THE DISCHAGE POINT TO THE SURFACE WATER WAS THE OUTFALL OF THE 48  RCP STORM DRAIN. THERE IS NO PUBLIC ACCESS IN THIS AREA OF THE SAN DIEGO RIVER.	160	50	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water	N/A	THE SPILL EXITED THE MANHOLE AND TRAVELED WEST INTO THE DROP INLET OF THE STORM DRAIN(1.D, 1.E) AND TRAVELED SOUTHWEST 895' THROUGH THE STORM DRAIN AND TO THE OUTFALL(1.F, 1.G) AND INTO THE SAN DIEGO RIVER.	Y	32.78779	-117.09986	32.78762	-117.10289					03/23/2025 13:30	THE SPILL VOLUME ESTIMATIONS WERE CALCULATED USING THE FLOW AND DURATION METHOD.	THE SPILL START TIME WAS WHEN THE CONSUMER OBSERVED AND NOTIFIED DISPATCH OF THE SPILL, AND THE END TIME WAS WHEN THE BLOCKAGE WAS RELIEVED AND CREWS CONFIRMED THE SPILL STOPPED.	Fats, Oil and Grease (FOG)	N/A	Gravity Mainline	N/A	Polyvinyl Chloride (PVC)	N/A	24	THE IMPACTS OF THE SPILL WERE TO THE STREET, CURB & GUTTER, STORM DRAIN AND THE SAN DIEGO RIVER.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	THE CREWS RESPONDED, INVESTIGATED, RELIEVED, AND TRACKED DOWN THE FINAL DESTINATION OF THE SPILL. THEY RETURNED A PORTION OF THE SPILL BACK INTO THE SYSTEM AND TELEVISED THE MAINS. CLEANED UP DEBRIS (SOLIDS) AROUND THE OVERFLOWING MH, WASHED DOWN THE STREET, CURB & GUTTER AND STORM DRAINS COLLECTING THE WATER DOWNSTREAM.	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV	N/A	CHANGED THE FREQUENCY FROM 6 TO 3 MOUTH CLEANING, FEWD SECTION TO CHECK AREA AND GREASE TRAPS.	N/A	03/23/2025 17:27	THERE WAS A GREASE STOPPAGE DISCOVERED DUE TO A SAG IN THE SEWER MAIN.	N	N/A	03/23/2025 18:05	SAN DIEGO RIVER	River	N/A	The San Diego River is a 52 mi (84 km) river in San Diego County, California. It originates in the Cuyamaca Mountains northwest of the town of Julian, then flows to the southwest until it reaches El Capitan Reservoir, the second-largest reservoir in the river's watershed at 112,800 acre-feet (139,100,000 m3). Below El Capitan Dam, the river runs west through Santee and San Diego. While passing through Tierrasanta it goes through Mission Trails Regional Park, one of the largest urban parks in America.  It flows near Mission San Diego de Alcal�. The river's valley downstream from there is known as Mission Valley for that reason. The valley forms a transportation corridor for Interstate 8 and the San Diego Trolley's Green Line. The river discharges into the Pacific Ocean near the entrance to Mission Bay, forming an estuary.	THERE WERE NO VISUAL IMPACTS TO AQUATIC LIFE.	Other (specify below)	 NO PUBLIC ACCESS.	NA	0	N	N	N/A	NA									N/A	
2	2SSO10109	Active	Concord City CS	Concord City	900417	1.3	Certified	Pernise Seumanutusa	Public Works Supervisor	24-MAR-25	25-MAR-25	25-MAR-25	Category 1 Spill	Treat Blvd/San Miguel/Ygnacio Woods	03/23/2025 11:30	03/23/2025 12:00	03/23/2025 09:40	03/23/2025 13:30	25-1465		intersection of ygnacio woods and treat blvd near san miguel	37.94584	-122.0142	Manhole	N/A	N/A	3600	spilled out of manhole to gutter and then to drainage system to flood prevention creek	Y	spilled to flood prevention creek	0	0	manhole	3500	100	Drainage Conveyance System that discharges to surface water		Pine creek from drain inlet opn treat blvd	N									03/23/2025 09:30	Eye ball method and gpm with start times and finish times 	Investigation from reporting parties.	Debris-Rags; Debris-wipes/Non-disposables		Manhole		Vitrified Clay		50	Impacted pine creek and water board was notified. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Contained spill with sand bags and cleared blockage. Washed down and sanitized street while vacuuming. 	Adjusted Schedule/Method of Preventive Maintenance; Post Spill CCTV		Mainline is now on a weekly hotspot	This was a monthly hotspot but now is a weekly.	03/23/2025 13:30	Found manhole clogged with wipes and rags when looking for blockage.	N			Pine Creek	Other (specify below)	Creek	Pine creek, partially dried up, low water level	None	Restricted Public Access		City of Concord	1	Y	N												
2	2SSO10179	Active	San Jose City CS	San Jose City	900421	1.3	Certified	BINH TRAN	DIVISION MANAGER	24-MAR-25	02-APR-25	02-APR-25	Category 1 Spill	1566 Scott St San Jose CA 95126	03/19/2025 10:27	03/19/2025 10:42	03/18/2025 15:00	03/19/2025 13:55	25-1404		The spill appearance point was a sanitary sewer manhole in front of the property at 1566 Scott St San Jose CA 95126 	37.31968	-121.91991	Manhole			10868	Sewage discharged from a SS manhole #38227 onto the street and traveled along the curb/gutter.  From the curb/gutter, the sewage eventually reached and entered a nearby storm drain inlet 2606. This storm inlet is connected to the City of San Jose's municipal storm sewer system. The sewage then traveled within the storm system to a trash capture device #100129 that connects to the storm outfall #169 which discharged to the Los Gatos Creek. Pictures of the spill boundary on land are uploaded as attachments.	Y	The spill reached nearby storm drain inlet #2606 aproximately 30 ft away.  This storm drain inlet is connected to  City of San Jose's municipal storm sewer system. The sewage traveled within the storm system approximately 1.5 miles to a trash capture device #100129 that connects to the storm outfall #169 which discharges to the Los Gatos Creek.	5458	0	The sewage reached Los Gatos Creek while discharging from the storm system outfall.  The longitude and latitude location of the outfall along the Los Gatos Creek is approximately at 37.3239585017455,-121.902528359913.  Upon arrival the responding crew tested the outfall with ammonia strips and it came out negative and during outfall inspection later that day tested positve. Pictures of the storm drain outfall  are included in the attachments.	5410	5458	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water		Sewage discharged from a SS manhole #38227 onto the street and traveled along the curb/gutter.  From the curb/gutter, the sewage eventually reached and entered a nearby storm drain inlet #2606 aproximately 30 ft away.  This storm drain inlet is connected to  City of San Jose's municipal storm sewer system. The sewage traveled within the storm system approximately 1.5 miles to a trash capture device #100129 that connects to the storm outfall #169 which discharges to the Los Gatos Creek.	Y	37.319686525569	-121.9197455	37.323958501746	-121.9197455	37.323958501746	-121.9025284			03/19/2025 11:04	The total SSO spill volume was estimated by using per capita method. Due to SSO happening at the start of the line we were able to apply the per capita method.  In addition, the spill entered the trash capture devide which stored the SSO spill that entered the storm system before entering the storm outfall. The city pump crew recovered 20,427 gallons of induced water, standing water and sewage.  Since the  pump crew was schedule to clean the unit the following morning, the sewage slowely enter the creek.  Considering the crew's initial video of the outfall we overestimated the flow in which the combined water contained in trash capture device was entering the creek. Although the first responder recieved a negative amonia test we assumed that the spill coming out of the outfall at that time was positive.  We approximated a flow rate of 5 gpm for 1082 minutes resulting 5,410 gallons spilled into the creek accounting for the sewage spilling overnight before the scheduled cleaning.	The reporting party first noticed the spill on 3/18/2024 at 16:00.  Based on the reporting party's information and high visibility of the SSO appearance point, it was assumed that the SSO likely started shortly before the reporting party noticed the afternoon of 3/18/2024. The start time of the SSO is assumed to have started around 15:00 on 3/18/2025 when there is a typical peak flow for residential areas.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		66	The spill required cleaup of the street, curb and gutter near 1566 Scott Street.  In addition, it was confirmed that the spill was captured into a trash capture device just upstream from outfall 169 at Los Gatos Creek.   	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Upon arrival, the responding crew immediatly placed sandbags around the nearby storm drain inlet where the spill had entered.  The crew tracked the spill in the storm drain conveyance system (MS4). The responding city crew called the necessary teams to clean the trash capture device.	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		The City has planned the following corrective actions for this sanitary sewer overflow: 1. Adjust the plugged pipe segment operation and maintenance cleaning frequency from 3 months to 1 month 2. Re-video in 30 days 3. Distributing grease flyers maps for nearby residents 4. Submitting GIS discrepancies for storm assets.	N/A	03/20/2025 15:30	During the responding to the spill event, crew noticed grease and rags when the plug was cleared.  CCTV investigation result showed evidence of grease deposit along the segment. The staff concluded that the cause of the SSO was grease deposit.	N		03/27/2025 15:30	Los Gatos Creek	Stream/Creek		The Los Gatos Creek runs 24 miles in California through Santa Clara Valley Water District's Guadalupe Watershed from the Santa Cruz Mountains northward through the Santa Clara Valley until its confluence with the Guadalupe River in downtown San Jose.�	During the spill response, there was no adverse impact to the environment or wildlife observed.	Other (specify below)	No public access impact - Los Gatos Creek is not intended for recreational usage.	Santa Clara Valley Water District   	0	N	N												
5S	5SSO11433	Active	City of Stockton MUD CS	Stockton City MUD	900429	1.1	Certified	Dagmara Saini	Program Manager III		01-APR-25	01-APR-25	Monthly Category 3 Spill	722 N SAN JOAQUIN ST, Stockton, CA.	03/11/2025 10:15	03/11/2025 10:30	03/11/2025 10:00				See attachment 	37.9606	-121.2889	Lateral Clean Out (Private); Manhole			450	See attachments	Y	Storm cb in front of 306 E Flora St	450				450	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		See attachments										03/11/2025 10:45	  We used a manhole overflow estimation chart based on the volume of the spill coming out of the manhole.	The start and end time are based on the time the spill was reported and the time we were able to stop the spill. 	Collection System Maintenance Failure (specify below); Debris-General		Gravity Mainline		Vitrified Clay		100	No lasting impact	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Upon arrival we were able to contain the spill in a sump at the manhole by blocking the outlet with a plug. We then were able to restore flow to the main and proceed with clean up efforts that included washing down the affected street and sidewalk and recovering all material from the sump of the storm manhole.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		CCTV the main line and implement any repairs or adjustments to a PM (if applicable) that are needed.		03/11/2025 12:00	Paper build up at manhole		None	03/13/2025 14:20														None	CCTV the Sanitary Lateral and implement any repairs or adjustments to a PM (if applicable) that are needed.	Added main to a hot spot checklist	None	Inspected- no repairs warranted	None	N/A	None	None	
8	8SSO10617	Active	Eastern Municipal Water District CS	Eastern Municipal Water District	898423	3.1	Certified	Ken Tagney	Director of Water Reclamation	14-JAN-25	25-MAR-25	25-MAR-25	Category 1 Spill	Day Street Lift Force Main	12/31/2024 12:15	12/31/2024 12:15	12/20/2024 08:59	12/31/2024 13:51	24-7270	14-FEB-25	The spill originated from a sewer force main located near the intersection of Cottonwood Avenue and Day Street in the City of Moreno Valley. The discharge was observed emerging from the ground within the Riverside County Flood Control property on the northeast side of the above intersection.	33.92431	-117.27854	Force Main			7015565	The spill flowed from the point of origin into the Riverside County Flood Control basin, (West End Moreno MDP, Towngate Basin) where it flowed out the outlet of the basin at Day St., and Cottonwood Ave. It then flowed underground through the Edgemont Channel. Edgemont Channel then daylights about 550 feet East of Old 215 Frontage where the concrete channel then continues above ground until reaching Old 215 Frontage. On the West Side of Old 215 Frontage the water flows into an earthen riparian drainage channel until reaching the eastside of the 215 freeway where the water then flows under the freeway. On the westside of the freeway the water flows into Sycamore Creek. The Creek then enters Sycamore Canyon Park. Flow from the creek was traced to Canyon Crest County Club where there was no observable spill material in the flowing water.  	Y	Stormwater basin and concrete drainage channel. 	1497000	0	Edgemont Channel to Sycamore Creek. 	5518565	1497000	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water		The spill flowed from the point of origin into the Riverside County Flood Control basin, (West End Moreno MDP, Towngate Basin) where it flowed out the outlet of the basin at Day St., and Cottonwood Ave. It then flowed underground through the Edgemont Channel. Edgemont Channel then daylights about 550 feet East of Old 215 Frontage where the concrete channel then continues above ground until reaching Old 215 Frontage. On the West Side of Old 215 Frontage the water flows into an earthen riparian drainage channel until reaching the eastside of the 215 freeway where the water then flows under the freeway. On the westside of the freeway the water flows into Sycamore Creek. The Creek then enters Sycamore Canyon Park. Sycamore Creek flows to Canyon Crest Drive; no observable spill material was observed at Canyon Crest Drive.	Y	33.92444	-117.27844	33.92392	-117.28464	33.92046	-117.29176			01/02/2025 00:50	Spill volume was calculated based on Day Street Lift Station flow rate data from a professionally installed meter multiplied by the duration of the spill that was determined from available SCADA data. 	Day Street Lift Station SCADA data trends.  	Other (specify below)	The cause of the spill is still under investigation. 	Force Main		Polyvinyl Chloride (PVC)		30	The spill closed down Day Street between Cottonwood Ave. and Dracaea Ave. for two days. The spill also impacted the flood control basin and well as the out let channel. The spill also affected Sycamore Creek. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	EMWD is cleaning the Edgemont Channel. Clean up of the basin is taking place currently. 	EMWD responded to the spill and worked to isolate the line and bypass the affected pipeline segment.  The Spill was contained in a retention basin upon discovery as apart of the response effort to mitigate impacts. 	Other (specify below)	Spill investigation is currently ongoing. 	Spill investigation is currently ongoing. 	Spill investigation is currently ongoing. 	01/24/2025 13:00	The SSO was caused by a break in a segment of the sewer force main leading from the adjacent Day Street Lift. The break was located adjacent to the intersection of Day Street and Cottonwood Avenue. 	Y	Spill cause and impact evaluations are ongoing. 	03/31/2025 17:00	Sycamore Creek	Stream/Creek		Seasonal Creek. 	None. 	Other (specify below)	Signage posted for contaminated water. 	Not appliciable	0	N	Y	Water quality samples where taken at the point of entry, upstream samples where taken at the flood control basin adjacent to the intersection of Day Street and Cottonwood Avenue, in the City of Moreno Valley. A downstream sample was collected  on the southwest side of Old 215 Frontage road in Riverside adjacent to where Cottonwood Avenue and Old 215 Frontage Road intersect. A secondary downstream sample was also taken from the Canyon Crest Country Club in Riverside. 	The samples where analyzed for Total and Fecal Coliform, E. Coli as well as Ammonia. 									Spill cause and impact evaluations are ongoing. 	
2	2SSO10172	Active	Ross Valley Sanitary District CS	Ross Valley SD	899565	2.2	Certified	Paul Bruemmer	O&M Manager 	07-FEB-25	28-MAR-25	28-MAR-25	Category 1 Spill	115 Bon Air Center, Larkspur 	02/06/2025 15:46	02/06/2025 16:26	02/06/2025 15:01	02/06/2025 16:50	25-0673	19-FEB-25	The location of the spill/appearance point was approximately 180' ft downstream from the receiving district pump station 13. The location of the spill was in a service road/ paved parking area, behind the Bon Air shopping center in Greenbrae CA. 	37.94648	122.52622	Other (specify below)	Secondary force main.		115454	The spill was a result of a secondary force main break. The spill affected approximately a 50'x100' area surrounding the force main break appearance point. The affected area consisted of paved surface and a water tributary leading to tidal Corte Madera creek. A portion of spill was discharged directly into the nearby unnamed open channel water tributary approximately 15' from the force main break. 	Y	The unnamed water tributary is connected to an upstream underground storm water conveyance system. The downstream water tributary is above ground, open channel and outfall is approximately a 1/8 mile before flowing into the tidal Corte Madera Creek. 	0	89912	The spill discharge point was directly at the site of the secondary force main break. The secondary force main break was approximately 15' from the surface waters of the unnamed water tributary. 	89912	25542	Paved Surface; Surface Water; Unpaved Surface		The spill destinations included a paved parking lot, unpaved creek bank, and surface water into an unnamed water tributary which leads to Corte Madera creek. The approximate spread of the spill on the ground was a 50'x100' area. 	Y	37.9467	-122.52545							02/06/2025 16:33	See attachment  E .	PS14's pump discharge flow data was reviewed in SCADA and a sudden increase in PS14 discharge flow was noted at 3:01 PM.  This was due to the pipe suddenly failing and a rapid decrease in dynamic head, indicating the start of the spill.  The spill end time is based off staff reporting the closure of the secondary force main isolation valve at the S. Eliseo Dr. valve cluster which stopped all flow through the secondary force main.	Damage by Others Not Related to Collection System Construction/Maintenance; Other (specify below)	Piping structural failure due to deterioration caused by H2S corrosion and possible contributing factors of top loading from shipping container, concrete pad and concrete post base which were directly on top of the failure point. 	Other (specify below)	Secondary/bypass force main.	Other (specify below)	18  concrete cylinder pipe	60	The spill's impact was primarily to the nearby water tributary, approximately fifteen feet from the force main break. The secondary impacted area was the surrounding parking lot area, where standing water collected in lower lying areas within the parking lot. There were no visual impacts observed at the receiving water way Corte Madera Creek.	Y	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Returned Portion of Spill to Sanitary Sewer System	Cleanup effort and mitigation effects detailed in 9.b. below.	Upon arrival, staff immediately recognized the secondary force main had ruptured and was daylighting in the parking lot of the Bon Air shopping center. Staff immediately worked to close the upstream isolation valve, effectively diverting flow into another force main, preventing additional flow into the ruptured force main. A nearby gravity main clean out within the effected spill area in the parking lot was opened, allowing a portion of the spill to enter back into the sewer system. Staff used a sewer combination truck to vacuum and recover as much standing sewer and sewer debris as possible. Staff then washed down all affected paved and unpaved surfaces, collecting all remnants of the spill. 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Plan Rehabilitation or Replacement of Sewer; Post Spill CCTV	Performed post spill CCTV inspection of the force main and first observation noted a high point in the force main at the failure point and severe corrosion extending 14' upstream and 13.5' downstream for a total of 27.5', presumably cause by trapped H2S.  CCTV noted discoloration 41.1' upstream 28.5' downstream for a total of 69.6'. This spot is a prime candidate for an automatic air release valve. 	This is a secondary force main and has been isolated from service.   Corrective action already completed includes excavation of the break in the force main, and assessment of the immediate damage.  Planned corrective actions include: Additional CCTV inspection of the of pipe. Evaluation of pipe structural integrity past the extents of the corrosion. Plans with Engineering to expedite a short-term repair and long-term replacement of the pipe through CIP depending on the integrity of the remaining secondary force main. 	CCTV of secondary force main to be completed by 2/20. Evaluation of secondary force main and recommendation of temporary repair 3/20. Replacement or repair through CIP to be determined.	02/06/2025 20:45	Initial investigation of the spill site revealed a couple of conditions that may have been contributing factors to the failure of the secondary force main. The most obvious factors were a shipping container placed on a reinforced concrete pad resting on top of a sign post incased in 2 feet of concrete resting directly on top of the secondary force main at the failure point.  Performed post spill CCTV inspection of the force main and first observation noted a high point in the force main at the failure point and severe corrosion extending 14' upstream and 13.5' downstream for a total of 27.5', presumably cause by trapped H2S.  CCTV noted discoloration 41.1' upstream 28.5' downstream for a total of 69.6'. 	Y	Excavation of the secondary force main at the point of failure also revealed a corroded section of concrete encased steel pipe. Further investigation is needed to evaluate the secondary force main past the corrosion affected area for short term repair options.	03/21/2025 15:00	Corta Madera Creek 	Stream/Creek		The spill entered into an unnamed open channel water tributary that runs along the back of the property. The tributary takes storm water out to the downstream creek, the Corte Madera Creek. 	There was no impact to aquatic life observed. 	Temporary Restricted Use		Ross Valley Sanitary District	5	N	Y	Water quality samples were taken at three locations which included the location of the spill, approximately 100' downstream of the spill and approximately 300' upstream of the spill. 	Samples were tested for Total coliform, fecal coliform bacteria, E-coli, and ammonia.  See attached sample reports.									Excavation of the secondary force main at the point of failure also revealed a corroded section of concrete encased steel pipe. Further investigation is needed to evaluate the secondary force main past the corrosion affected area for short term repair options.	
4	4SSO10408	Active	Manhattan Beach City CS (SSO program)	Manhattan Beach City	900484	1.2	Certified	Jeff Page	Utilities Manager		26-MAR-25	26-MAR-25	Monthly Category 3 Spill	2901 Pacific Ave. Manhattan Beach	02/19/2025 18:33	02/19/2025 19:06	02/19/2025 18:33				Private lateral discharge caused by root intrusion in 6-inch gravity main. See attachment for specific areas.	33.89704	-118.40376	Lateral Clean Out (Private)			100	Spill contained to private property and gutter-line to the north. Please see the attached photos.	N						100	Paved Surface; Unpaved Surface		Destination confined to the gutter just to the north.  										02/19/2025 19:30	Field staff observations of discharge flowrate and total time elapsed. All 100 gallons were recovered.	Spill located in a highly visible area. The assumption is the spill was reported soon after it started. 	Debris-wipes/Non-disposables; Root Intrusion		Gravity Mainline		Vitrified Clay		72	Portions of the resident's driveway, side area of yard, and curb and gutter in front of the house and neighboring property to the north. 	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow		Vacuumed spill, cleaned and disinfected the affected areas.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		The line segments were jetted, and a root ball was retrieved. These segments are on our hot spot list. Additional monitoring and cleaning to take place along with increased frequency of root control.		02/19/2025 20:00	Root intrusion from trees in the area coupled with debris related to flushables and non-flushables found to be the cause.		n/a	02/19/2025 20:00														n/a	To be evaluated during our SSMP update due this August.	To be evaluated during our SSMP update due this August.	To be evaluated during our SSMP update due this August.	Areas inspected with CCTV equipment.	To be evaluated during our SSMP update due this August.	Internal documents updated. Updates to be memorialized in the upcoming SSMP update.	n/a	n/a	
2	2SSO10104	Active	Ccsf - San Francisco Airport CS	CCSF - San Francisco Airport	900490	1.1	Certified	Jennifer Acton	Director of Maintenance		27-MAR-25	27-MAR-25	Monthly Category 3 Spill	Gate G6	02/10/2025 14:33	02/10/2025 14:36	02/10/2025 14:30				Spill originated from one sanitary sewer manhole located on the airfield operations ramp within aircraft Gate G6	37.618465	-122.391953	Manhole			65	Spill overflowed form one sanitary sewer manhole located at aircraft Gate G6 and flowed on the paved surface downgradient and east towards the VSR. 	N						65	Paved Surface		Spill overflowed from one sanitary sewer manhole located within aircraft Gate G6 and flowed downgradient on the paved east towards the VSR. 	Y	37.618465	-122.391961	37.618817	-122.391814	37.618809	-122.391781	37.618471	-122.391909	02/10/2025 16:27	Spill volume estimations were calculated using information and incident photos collected by Airport personnel responding to the incident.  Field measurements collected using incident photos were used to perform area/volume calculations.	Spill times were estimated using information provide by Airport personnel responding to the spill incident.	Debris-General; Fats, Oil and Grease (FOG)		Gravity Mainline		Ductile Iron		28	Spill impacted the paved surface within aircraft Gate G6	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Airfield Operations and Airport Fire Department responded and controlled airfield operations in the vicinity of the spill incident.  Airport Plumbers used a vactor truck and crew to operate a hydrojetter to clear the blockage and restore flow to the sanitary sewer system.  Airport Scrubbing contractor cleaned the impacted paved surface area.  All wastewater from the spill, including hydrojetting and scrubbing was captured and returned to the sanitary sewer system for processing.	Other (specify below)	Airport Environmental Operations team performed additional investigation including FOG inspections of tenant food service establishment(s) upstream of the sewer failure location.	Airport Environmental Operations team performed additional investigation including FOG inspections of tenant food service establishment(s) upstream of the sewer failure location.		02/10/2025 16:35	Plumbers investigated and determined the blockage in the gravity mainline was caused by FOG deposition and general debris.		None	03/10/2025 16:27														None	None	Airport Environmental Operations reviewed tenant grease trap service report and frequency	None	None	None	NA	None	None	
2	2SSO10179	Active	San Jose City CS	San Jose City	900491	1.2	Certified	BINH TRAN	DIVISION MANAGER	26-MAR-25	04-APR-25	04-APR-25	Category 1 Spill	2182 Nimrick Lane San Jose CA 95124	03/22/2025 16:35	03/22/2025 17:02	03/22/2025 15:30	03/22/2025 18:08	25-1458		The spill appearance point was a sanitary sewer manhole in front of the property at 2182 Nimrick Drive San Jose CA 95124	37.23687	-121.93759	Manhole			750	Sewage discharged from the spill appearance point (manhole) onto the street and traveled along the street and curb/gutter.  From the curb/gutter, the sewage eventually reached and entered a nearby storm drain inlet. This storm inlet is connected to the City of San Jose's municipal storm sewer system. The sewage then traveled within the storm system to a storm drain outfall and discharged to Ross Creek. Pictures of the spill boundary on land are uploaded as attachments.	Y	The spill reached nearby storm drain inlet near 2182 Nimrick Ln (#56403) approximately 50ft away. This storm drain inlet is connected to the City of San Jose's municipal storm sewer system. The sewage traveled within the storm system approximately a mile away from the storm inlet to a storm outfall discharge point along Ross Creek.	187	0	The sewage reached Ross Creek Creek while discharging from storm system outfall. The longitude and latitude location of the storm outfall along the San Tomas Aquino creek is approximately at 37.24587929, -121.9311688220.  Pictures of the storm drain outfall and health warning signs are included in the attachments.	538	212	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water		The spill (sewage) traveled along the street curb and gutter from the manhole near 2182 Nimrick Lane (spill appearance point). The manhole is identified in 1.d. and 1.e. The spill reached and traveled along the curb and gutter, then entered City's storm inlet and drainage system. The location of the storm drain inlets is identified in 1.f/1.g. The spill reached the nearby surface water of Ross Creek through a storm outfall discharge point. The storm outfall discharge point is identified in 1.h/1.i.	Y	37.23687	-121.93759	37.23747	-121.93514	37.24588	-121.93096			03/22/2025 17:20	A total spill volume was estimated using the flow rate method and duration of SSO.  For the spill recovered on land, we utilized an approximate measurements to estimate the recovered volume. For the spill recovered from the storm drain system, an approximate depth of flow was measured while tracking the spill. The depth was applied to a partially filled cylinder calculation to estimate a volume for each of the storm drain pipes.	The reporting party first noticed the spill on 3/22/2025 at 16:30.  Due to it's been a start of the segment and the crew's observation it was assumed that the SSO started an hour prior to RP noticing it.  The spill end time was determined to be when the plug was cleared.	Root Intrusion		Gravity Mainline		Vitrified Clay		57	The spill required cleanup of the street, curb and gutter near 2182 Nimrick Lane.  With the spill traveling through a different juristiction storm path it was determined  that a portion of the spill was lost to Ross Creek . Crews checked near by outfall #420, which tested negative and no major impact was observed. The crews informed impacted agency of the sewage entering their storm network.  	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Upon arrival, the responding City Crew immediately placed sandbags around the nearby storm drain inlet where the spill had entered. The Crew tracked the spill in the storm drain conveyance system (MS4). The responding City Crew placed sandbags in the furthest downstream manhole prior to entering other agency owned storm system.  It was assumed that the spill discharged out from a storm drain outfall into the Ross Creek. Once the blockage was cleared and the spill stopped, the Crew began their cleanup efforts. At the spill source point, a Crew flushed sewage from the asphalt and curb to the nearby storm drain inlet. A second Vacuum truck was positioned at the last owned storm manhole before entering other jurisdiction.  Most of the spill that reached other agency's storm drain system was assumed to have been lost to the waterway.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		The City has planned the following corrective actions for this sanitary sewer overflow:  1. Inspected Sewer Using CCTV to Determine Cause 2. Add to the root control program 3. Adjusted Schedule/Method of Preventive Maintenance based on video 4. Complete point repair on DS segment #538	The City has scheduled the following corrective actions for this sanitary sewer overflow:  1. Re-video the plugged sanitary pipe segment along with the upstream and downstream segments prior to start of root control project scheduled for July 2025	03/22/2025 21:00	During the responding to the spill event, crew noticed roots when the plug was cleared.  CCTV investigation result showed evidence of roots along the segment. The staff concluded that the cause of the SSO was roots.	N		04/02/2025 15:30	Ross Creek	Stream/Creek		Ross Creek is a 5-mile-long northeast-flowing stream currently originating just north of Blossom Hill Park in southeast Los Gatos, California. It is tributary to Guadalupe River, whose waters flow to the south end of the San Francisco Bay. Ross Creek is not intended for recreational usage or drinking water.	During the spill response, there was no adverse impact to the environment or wildlife observed.	Other (specify below)	No public access impact - Ross Creek is not intended for recreational usage.	Santa Clara Valley Water District  	0	N	N												
1	1SSO10018	Active	Willits City CS	Willits City	900511	1.1	Certified	Nicole Caldwell	interim CPO		27-MAR-25	27-MAR-25	Category 1 Spill	E1 manhole	03/19/2025 11:22	03/20/2025 09:00	03/19/2025 11:00	03/27/2025 12:15	25-1565			39.2346	-123.2029	Manhole			2000		Y		0	0		2000	0	Drainage Conveyance System; Unpaved Surface		 Manhole got used as Trashcan by Homeless Population. Tent, Sleeping Bags, BBQ, Shopping Baskets, RR Ties, Clothes, Trash, Food, Dishes, Stuffed Animals, Mattresses, Foam Padding, Tarps, Plastic Sheeting,   Metal / Shelving, Tree limbs, couch pillows, Folding chairs, ect were found inside 8.4 foot deep manhole. Current trash that was pulled out of Manhole amounts to approximately 2 yard	Y	39.2346	-123.2029							03/24/2025 15:50	estimating from surrounded area view	just estimating	Vandalism (specify below)	Manhole got used as Trashcan by Homeless Population.	Manhole		Concrete		20	Due to vandalism, Manhole filled up, overflowed, Trash, debris and Sewer spilled on surrounding area and into Baechtel Creek	N	Cleaned Up (specify below)	due to spill area, next to railroads and no access road, we walked to Manhole, pulled trash out of manhole, set aside, waiting for dryer weather to put in temporary road and trash removal	placed waddles around area to contain	Other (specify below)	we will have to put a fence around the Manholes along Railroads when accessible	we will have to put a fence around the Manholes along Railroads when accessible	Sommer	03/27/2025 08:45	Group walked area of future planned Rail Trail and found Manhole had been overflowing	Y	Homeless population will continue to do use manholes as trashcans	08/29/2025 15:00	Baechtel Creek	Stream/Creek		Seasonal Creek	none	Other (specify below)	none	n/a	0	N	N											Homeless population will continue to do use manholes as trashcans	
5S	5SSO11001	Active	Modesto CS	Modesto City	900521	1.2	Certified	Robert Englent	Wastewater Collection System Superintendent		22-APR-25	22-APR-25	Monthly Category 3 Spill	1543 W. Rumble Rd.	03/20/2025 18:39	03/20/2025 18:50	03/20/2025 17:39				The spill originated from MHSS004310 in the street in front of 1543 W. Rumble Rd.  See Attachment	37.6816	-121.01951	Manhole			149	Sewer spilled from MHSS004310 and entered the gutter on the North side of W. Rumble Rd. The sewer travelled a total of 278 ft. in both directions and also entered SDCB006061 and rock well SDRW012566. Sewer from the same MH also entered the gutter on the South side of W. Rumble Rd. and travelled a total of 220 ft. in both directions and did not enter any storm structures. See Attachments	Y	The gutter on the North and South side of W. Rumble Rd. and SDCB006061 and rock well SDRW012566. See Attachment	124				124	Drainage Conveyance System; Groundwater Infiltration Basin or Facility; Street/Curb and Gutter (2 3)		278 ft. of  gutter on the North side of W. Rumble Rd. including a catch basin and rock well.  220 ft. of gutter on the South side of W. Rumble Rd. 	Y	37.68166	-121.02034	37.68156	-121.02022	37.68164	-121.01936	37.68154	-121.01938	03/20/2025 20:08	The volume was estimated using the pick hole method.  See Attachment	  Steve received a call for a stoppage at 1613 W. Rumble Rd. around 5:39 PM and while he was investigating that, he received a call from the Water Department about a sewer spill near by. When he responded he found the SSS. Due to the call regarding a sewer back up with no clog in the private lateral it is reasonable to estimate that the spill start time was at 5:39 PM. The end time was when the assist crew broke the stoppage at 8:08 PM. See Attachment	Other (specify below); Root Intrusion	Fractured pipe with root intrusion	Gravity Mainline		Vitrified Clay		63	 Spill impacted both sides of the street and impacted gutter, the catch basin and one rock well.  See Attachment	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Call Duty contained the spill with sandbags. The assist crew broke the stoppage in the main line and then washed and vacuumed the South side and the North side of W. Rumble Rd. They also cleaned the catch basin and one rock well. 	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		The cleaning PM schedule has been adjusted to one year. A root foaming PM has been created and a repair of the fractured pipe has been scheduled. See Attachment		03/20/2025 22:42	Our CCTV crew inspected the line and found a root ball at 93 ft. from the downstream MH. We had the line recleaned and then the CCTV crew found fractured pipe with root intrusion at the same footage.		N/A	03/27/2025 10:03														N/A	The cleaning PM schedule has been adjusted to one year. A root foaming PM has been created and a repair to the affected area has been scheduled.	The cleaning PM schedule has been adjusted to one year.	N/A	A spot repair has been scheduled for April 2025.	N/A	Adjusted cleaning PM and created root foam PM. See Attachment	N/A	N/A	
2	2SSO10168	Active	Redwood City CS	Redwood City	900528	1.1	Certified	Robin Kim	Public Works Superintendent		28-MAR-25	28-MAR-25	Monthly Category 3 Spill	1000 Block Lakeview Way	02/18/2025 08:45	02/18/2025 09:00	02/18/2025 08:44				The spill originated from a single appearance point, the sanitary sewer manhole in front of 1040 Lakeview Way. Additional information about spill extent and photographs are attached in the Supporting Documents. 	37.45816	-122.25818	Manhole			124	The spill originated from a single manhole and the extent of the spill impacted the street, curb and gutter of the 1000 Block of Lakeview Way. Additional information is provided in the Supporting Documents. 	Y	The spill entered a curb inlet at the end of the cul-de-sac on a 12  RCP storm line. 	1				124	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		The spill primarily stayed on the asphalt and curb and gutter of the 1000 block of Lakeview Way and the cul-de-sac. A small volume entered the curb inlet at the end of the cul-de-sac which was fully recovered. 										02/18/2025 09:30	Spill volume estimation was calculated based on the area/volume method and rate of flow. The first responder took photographs of the spill extent upon arrival, which was used to determine the spill volume on the ground at that time. The first responder also reported an estimated rate of spill from the manhole pickhole of 5 gallons per minute at time of arrival, which was used to calculate the remaining spill volume from the time of operator arrival to end time of the spill. Spill volume estimation calculations are provided in Supporting Documents. 	Area/Volume, Flow Rate	Root Intrusion		Gravity Mainline		Vitrified Clay		48	The spill primarily stayed on the asphalt and curb and gutter of the 1000 block of Lakeview Way and the cul-de-sac. A small volume entered the curb inlet at the end of the cul-de-sac which was fully recovered. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		The first responder arrived at 9 AM and initiated mitigation activities such as protecting the storm curb inlet with a pig blanket. A second crew with the combination flusher unit arrived at 9:15 AM and began working to clear the blockage in the main line. Following the spill end at 9:30 AM, the crew began clean-up activities of the storm inlet, curb and gutter, and asphalt by washing down the area with fresh water and vacuuming up all wash water for disposal into the sanitary sewer system. 	Adjusted Schedule/Method of Preventive Maintenance; Post Spill CCTV		Although this main line segment is on a regular basin preventative maintenance cleaning schedule, as roots were determined to be the cause for this spill, the frequency for this specific segment will be increased to an annual cleaning. 		02/18/2025 11:00	Root intrusion was determined to be the cause of the spill based on crew observations at time of spill response and follow-up inspection. 		There are no ongoing investigations. 	02/21/2025 15:00														Not applicable. 	Increase cleaning frequency for this particular segment. 	Increase cleaning frequency for this particular segment to annual rather than on the basin preventative maintenance cleaning. 	Not applicable at this time. 	Not applicable.	Not applicable.	Added segment to increased annual  hot spot  cleaning.	No modifications to spill response activities. 	There are no ongoing investigations. 	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	900529	1.2	Certified	John J. Hough	San Dist M&O Superintendent	29-MAR-25	09-APR-25	09-APR-25	Category 1 Spill	357661	03/26/2025 15:14	03/26/2025 15:57	03/26/2025 15:00	03/26/2025 22:13	25-1552		See Attached Spill Map with Photos.	38.50515	-121.43575	Manhole	Private Manhole		991	See attached Spill Map with photos.	Y	See attached Spill Map with photos.	39	0	See Attached Spill Map with Photos.	942	46	Drainage Conveyance System; Paved Surface; Surface Water		See attached Spill Map with Photos.	Y	38.50515	-121.43575	38.50513	-121.43578	38.50534	-121.43687			03/26/2025 16:09	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Damage by Others Not Related to Collection System Construction/Maintenance	Private plumber's equipment broke in SacSewer main line causing stoppage.	Gravity Mainline		Vitrified Clay		51	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified City of Sacramento Department of Utilities and Sacramento County EMD.	See Attached Description of Spill Event	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		SacSewer inspected the main line with CCTV on March 28, 2025. Based on the findings, SacSewer will adjust the preventative maintenance schedule from a 12-month frequency to a 6-month frequency.	SacSewer modified the preventative maintenance schedule on 4/2/25.	03/27/2025 00:40	See Attached Description of Spill Event	N	N/A		Morrison Creek	Stream/Creek		Morrison Creek is an earthen-lined channel with moderate flow.	No observed impacts to aquatic life	Other (specify below)	Morrison Creek is protected by a fence and is not accessible to the public.	N/A	0	N	N											N/A	
8	8SSO10636	Active	Colton Water Reclamation Facility CS	Colton City	900533	1.3	Certified	Bassam Alzammar	Water/Wastewater Operations Manager	31-MAR-25	31-MAR-25	31-MAR-25	Category 2 Spill	Meridian Basin	03/26/2025 11:15	03/26/2025 11:30	03/24/2025 12:00	03/26/2025 15:00	25-1572		Meridian storm basin	34.07937	-117.34751	Gravity Mainline; Manhole			50000	50,000 gallons contained in storm drain basin.	N						50000	Groundwater Infiltration Basin or Facility		meridian storm water catch basin	Y	34.07943	-117.34793							03/26/2025 12:00	math and visual	gallons amount estimated	Vandalism (specify below)		Gravity Mainline; Manhole		Vitrified Clay		40	spill was contained	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		combination vactor truck and pump back into sewer system	Inspected Sewer Using CCTV to Determine Cause		 abandon existing manhole no need for it.	inspecting for vandalism	03/26/2025 19:00	Manhole ring and cover was removed (vandalism) .	N												N													
5S	5SSO11084	Active	White Slough Water Poll Con Pu CS	Lodi City	900535	1.2	Certified	Andrew Richle	Utilities Superintendent 		31-MAR-25	31-MAR-25	Monthly Category 3 Spill	314 N. Pleasant Ave	02/26/2025 13:03	02/26/2025 13:17	02/26/2025 12:28				Spill point was from MH#J1866	38.13859	-121.27624	Manhole			105	Spill was around MH#J1866 and terminating in gutter.	N						105	Street/Curb and Gutter (2 3)		Spill was around MH#J1866 and terminating in gutter.										02/26/2025 13:33	Spill originated from MH#J1866 which is a high point and terminated in the gutter. MH was not actively flowing when staff arrived. Calculation based on the gutter volume. 	Staff assumption of start time since the MH was not actively flowing. We were unable to reach the original caller so we can assume they noticed the spill, took time to contact emergency service 	Debris-General; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		40	Spill required cleanup around MH and gutter. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Spill was contained to gutter.	Adjusted Schedule/Method of Preventive Maintenance		Spill location will be monitored and evaluated if increased monitoring is necessary. 		02/26/2025 14:27	Staff will monitor spill location for two months to evaluate cleaning needs. If accumulation of FOOG or rags is observed, this district 		None	03/31/2025 12:00														N/A	N/A	Currently monitoring. Maintenance schedule could be modified. 	N/A	N/A	N/A	N/A	Staff arrived on scene and contained spill to gutter. Cleaning equipment included, shovels, brooms, simple green, Vaccon truck 37 and maintenance truck 21. Used vaccon to pressure wash and vacuumed all spill volume. Cleaned sewer line and restored full flow. All wastewater was returned to sanitary sewer system.  	None	
4	4SSO10436	Active	South Pasadena City CS	South Pasadena City	900538	1.1	Certified	Harold T. Gerber	Public Works Director		31-MAR-25	31-MAR-25	Monthly Category 3 Spill	Garfield Avenue - approximately 100 ft south of Le Droit Dr	07/17/2024 20:00	07/17/2024 21:15	07/17/2024 19:50				Reported sewer issue at 1129 Garfield Avenue.  Single spill location appearance at Manhole 3C located approximately 100 ft south of Le Droit Dr.	34.11336062219	-118.14030053585	Manhole			390	Spill was contained in the curb and gutter along Garfield Avenue and sandbags placed by responding staff.	N						390	Street/Curb and Gutter (2 3)		Along Garfield Avenue, between Manhole 3C located approximately 100 ft south of Le Droit Dr. on the north end, and north of Monterey Road on the south end.	Y	34.11336062219	-118.14030053585							07/17/2024 22:00	Visual estimation of flow from manhole and time flowing - which was a maximum of 3 gallons per minute (at times less) for 130 minutes.	Time of notification and observed volume of overflow.	Debris-General		Gravity Mainline		Vitrified Clay		80	Spill was contained in the curb and gutter along Garfield Avenue and sandbags placed by responding staff.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Spill was contained in the curb and gutter along Garfield Avenue and sandbags placed by responding staff.  Hydro-jetting from the downstream Manhole 12D toward the upstream blockage approximately 300 feet was successful in removing the debris.  Overflow that did not evaporate was discharged back into the sewer manhole.	Post Spill CCTV		Plan to implement more frequent CCTV across the collection system to identify potential obstructions.		07/17/2024 23:10	Debris causing the blockage was not recovered, however, as this is a residential street and not a commercial area, it is assumed not be FOG.		N/A	07/31/2024 18:00														N/A	Plan to implement more frequent CCTV across the collection system to identify potential obstructions.	CCTV as frequent as every 2 years.	N/A	N/A	N/A	N/A	N/A	N/A	
2	2SSO10179	Active	San Jose City CS	San Jose City	900546	1.3	Certified	BINH TRAN	DIVISION MANAGER	01-APR-25	07-APR-25	07-APR-25	Category 1 Spill	1118 Starbird Cir San Jose CA 95117	03/24/2025 08:07	03/24/2025 08:19	03/24/2025 06:30	03/24/2025 09:30	25-1474		The spill appearance point was a sanitary sewer manhole in front of the property at 1118 Starbird Cir San Jose CA 95117	37.306567890878	-121.9651651	Manhole			1220	Sewage discharged from the spill appearance point (manhole) onto the street and traveled along the street and curb/gutter.  From the curb/gutter, the sewage eventually reached and entered a nearby storm drain inlet. This storm inlet is connected to the City of San Jose's municipal storm sewer system. The sewage then traveled within the storm system to a storm drain outfall and discharged to San Tomas Aquino Creek. Pictures of the spill boundary on land are uploaded as attachments.	Y	The spill reached nearby storm drain inlet near 1118 Starbird Circle (#1323) approximately 23 ft away. This storm drain inlet is connected to the City of San Jose's municipal storm sewer system. The sewage traveled within the storm system approximately 260 ft away from the storm inlet to a storm outfall discharge point along San Tomas Aquino Creek.	29	0	The sewage reached San Tomas Aquino Creek while discharging from storm system outfall. The longitude and latitude location of the storm outfall along the San Tomas Aquino creek is approximately at 37.3066, -121.9642. Upon arrival, the responding Crew placed health warning signs to notify the public. Pictures of the storm drain outfall and health warning signs are included in the attachments.	1042	78	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water		The spill (sewage) traveled along the street curb and gutter from the manhole near 1119 Starbird Circle (spill appearance point). The manhole is identified in 1.d. and 1.e. The spill reached and traveled along the curb and gutter, then entered City's storm inlet and drainage system. The location of the storm drain inlets is identified in 1.f/1.g. The spill reached the nearby surface water of San Tomas Aquino Creek through a storm outfall discharge point. The storm outfall discharge point is identified in 1.h/1.i.	Y	37.306526463188	-121.965121701874	37.30653791481	-121.965048417596	37.306611866285	-121.964290984098			03/24/2025 08:32	The total SSO spill volume was estimated by using the approximate flow rate during the spill response and duration of the SSO. For the spill on land, the team used approximate measurements to estimate the recovered volume. For the spill recovered from the storm drain system, an approximate depth of flow was measured while tracking the spill. The depth was applied to a partially filled cylinder calculation to estimate a volume for each of the storm drain pipes.	The reporting party first noticed the spill on 3/24/2025 at 07:30.  At that time, the reporting party stated that the spill had already reached the nearby storm drain inlet. Based on the reporting party's information and high visibility of the SSO appearance point, it was assumed that the SSO likely started an hour before the reporting party noticed the morning of 3/24/2025. The start time of the SSO is assumed to have started around 06:30 on 3/24/2025  when there is a typical peak flow for residential areas.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		66	The spill required cleanup of the street, curb and gutter near 1118 Starbird Circle. In addition, it was confirmed that raw sewage reached San Tomas Aquino Creek. Based on the responding Crew's visual observations, there was no adverse impact to the environment or wildlife at the time of the spill. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Upon arrival, the responding City Crew immediately placed sandbags around the nearby storm drain inlet where the spill had entered. The Crew tracked the spill in the storm drain conveyance system (MS4). The responding City Crew placed sandbags in the furthest downstream manhole prior to the discharge point to the waterway. It was confirmed that that the spill discharged out from a storm drain outfall into San Tomas Aquino Creek. Once the blockage was cleared and the spill stopped, the Crew began their cleanup efforts. At the spill source point, a Crew flushed sewage from the asphalt and curb to the nearby storm drain inlet. A second Vacuum truck was positioned at the affected inlet to recover the spill on land and induced water. Most of the spill that reached the storm drain system was assumed to have been lost to the waterway due to the duration and proximity of the SSO.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		The City has planned the following corrective actions for this sanitary sewer overflow: 1. Adjust the plugged pipe segment operation and maintenance cleaning frequency from 1 year to 3 months. 2. Re-video the plugged sanitary pipe segment along with the upstream and downstream segments in 3 months prior to cleaning. 3. Distribute grease (FOG) outreach flyers to nearby residents.	The City has scheduled the following corrective actions for this sanitary sewer overflow:  1. Adjust the plugged pipe segment operation and maintenance cleaning frequency from 1 year to 3 months- completed on 4/2/2025 2. Re-video the plugged sanitary pipe segment along with the upstream and downstream segments in 3 months prior to cleaning. 3. Distribute grease (FOG) outreach flyers to nearby residents	03/24/2025 14:00	During the responding to the spill event, crew noticed grease and rags when the plug was cleared.  CCTV investigation result showed evidence of grease deposit along the segment. The staff concluded that the cause of the SSO was grease deposit.	N		04/02/2025 15:30	San Tomas Aquino Creek	Stream/Creek		San Tomas Aquinas Creek, is a 16.5-mile-long (26.6 km) stream that heads on El Sereno mountain in El Sereno Open Space Preserve in Saratoga, California in Santa Clara County, California, United States. It flows north through the cities of Saratoga, Monte Sereno, Los Gatos, Campbell, Santa Clara and San Jose before its confluence with the Guadalupe Slough in south San Francisco Bay. San Tomas Aquino Creek is not intended for recreational usage or drinking water.	During the spill response, there was no adverse impact to the environment or wildlife observed. 	Other (specify below)	No public access impact - San Tomas Aquino Creek is not intended for recreational usage.	Santa Clara Valley Water District   	0	N	N												
3	3SSO10287	Active	Marina Coast CS	Marina Coast WD	900547	1.5	Certified	Derek Cray	Operations & Maintenance Manager	01-APR-25	04-APR-25	04-APR-25	Category 2 Spill	Imjin Parkway, Imjin LS Force Main 	03/29/2025 09:56	03/29/2025 10:20	03/29/2025 09:47	03/29/2025 16:50	25-1604		The spill originated from a force main failure located at the unpaved area on the North corner of the Shell entrance. The entrance is located on the East side of the property along Abrams Drive.	36.66461	-121.77515	Force Main			1442	The spill was contained to the curb and gutter, with light puddling on the asphalt around the location of the failure. Once the spill entered the storm system, it then traveled across the road and daylighted at an open percolation area, and not waters of the US. The storm system was thoroughly cleaned, and all sewage and water used for cleanup were recovered by utilizing our hydro-vac combo unit. The affected curb and gutter, as well as the asphalt area, were properly disinfected with Cl2. The area was then washed down, and all water used for clean-up was recaptured with our hydro-vac combo unit and properly disposed of.      	Y	The storm system consisted of two DI�s and 74 feet of 15-inch storm main, which daylighted at a percolation area. This location does not have the potential to reach waters of the US. The storm system was thoroughly cleaned by utilizing our hydro-vac combo unit. All sewage and water used for clean up were removed. 	224	0			240	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		Once the sewage entered the storm system, it daylighted at a percolation area and not waters of the US. The spill was visually confirmed to be contained to this area, with only liquid and no debris visible.   	Y	36.66399	-121.77423							03/29/2025 10:45	Due to the type and location of the failure, a visual measurement was required to estimate the spill flow rate. The end time was determined to be the point the hydro-vac unit began to capture the sewage, preventing the sewage from running down the gutter. All sewage captured was returned to the collection system. During the mitigation of the spill, the hydro-vac unit was also used to excavate and, in doing so, created a hole which helped to contain the spill.  	The spill end time was determined to be the time the hydro-vac unit began to remove sewage, which immediately stopped the flow of sewage from further flowing down the gutter. The start time was determined by calculating the total spill area and dividing it by the estimated spill flow rate. 	Other (specify below)	The failure was at a 4-inch maintenance port. The maintenance port was located on a force main and constructed of ductile flanged piping, which developed a crack under a flange. This may have been caused by the ongoing construction from the city's road widening project. 	Force Main		Ductile Iron		26	The impact of the spill included the gutter, storm system, and a percolation area, which was the end point. Once the hydro-vac unit was on site, it began to remove sewage, immediately stopping the flow. The unit was also used to excavate a hole, which further helped to contain the sewage. All sewage recovered, and water used for clean up was returned to the collection system.   	N	Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Spill mitigation consisted of utilizing our hydro-vac unit to immediately stop the flow of sewage with the vacuum portion, as well as excavating a hole to help further contain the spill.  	Spill mitigation included the use of our hydro-vac unit, which once on site, immediately stopped the flow from continuing to run down the gutter. The unit was also used to excavate a hole at the failure site which helped with containing the spill. Once a repair was completed, the unit was then used for clean up, which consisted of lightly misting the spill area with Cl2 and washing down with clean water from the unit. The storm system was then hydro cleaned to recapture any sewage that may have remained within the system. All water used for clean up was recaptured with the vacuum portion of the unit and properly disposed of.  	Other (specify below)	A permanent repair was achieved by cutting out the maintenance port and wye, and replacing them with PCV piping and two epoxy-coated couplers. 	A straight line repair was completed by cutting out the ductile fitting and replacing it with epoxy-coated couplers and PVC pipe. This maintenance point has been completely eliminated from the system. 	With the removal of this maintenance port and a permanent repair achieved, no further inspection at this location is necessary. 	04/02/2025 14:30	During the excavation at the spill origin site, the cause of the spill was identified to be a failure of the 4-inch ductile piping, which cracked presumably by the ongoing construction activities for the city�s road widening project. This maintenance port has been eliminated.	N												N													
9	9SSO10650	Active	City of Encinitas CS	Encinitas City 	900549	1.1	Certified	SHAWN ATHERTON	UTILITY SUPERVISOR		03-APR-25	03-APR-25	Monthly Category 3 Spill	Sewer Easement MH #445SMH	03/28/2025 03:27	03/28/2025 05:00	03/28/2025 03:20				Backyard of the home located at; 840 Val Sereno Enc. CA. 92024	33.05086	-117.2227	Manhole	N/A	N/A	870	Spill exited the MH in the backyard, then to the unpaved dirt access road.  See photograph showing the spill did not reach the storm drain headwall going to the creek.	N	Most of the spill percolated into the ground of the backyard, some of the spill went to other parts of the yard and onto the unpaved dirt access road.	0				0	Unpaved Surface	N/A	Spill was mostly contained in the yard of the property, a small portion of the spill went along the side of an unpaved dirt access road	Y	33.05086	-117.2227							03/28/2025 05:45	Spill volume was calculated using the SSCSC Manhole Overflow Gauge and by estimating the volume of the puddles throughout the property yard.	Homeowner noticed the spill when it started in their backyard, then called us immediately.	Pipe Structural Problem/Failure - Controls	N/A	Gravity Mainline	N/A	Vitrified Clay	N/A	46	We were very lucky that most of the spill was contained in the yard of the property, some of the spill did reach the edge of an unpaved dirt access road. After we cleared the blockage, we returned the next morning and cleaned up the area. We removed a large piece of saturated landscape fabric the homeowner installed for weed control and hand raked the entire area. There was no feces, TP or other sewage debris present in the area. When we left the area, there was no signs or indication of the sewer spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Property Owner Notified; Restored Flow	Within 16 hours of the spill end time, we had a contractor on-site to repair the broken VCP sewer main. 	Spill was mostly contained within the property at 840 Val Sereno, some of the spill did reach the dirt access road, but did not cross over. We cleaned up the area of all debris and raked the spill puddles. We returned the next morning and the area was almost completely dry. Also, the next morning, we had a contractor on-site to fix the break in the sewer main.	Plan Rehabilitation or Replacement of Sewer; Repaired Facilities or Replaced Defect	N/A	Within 16 hours of the spill stop time, we had a contractor on-site to repair the sewer main, this was completed on March 29, 2025 		03/29/2025 02:00	After the blockage was cleared, we inspected the downstream sewer mainline pipe. Approximately 50 feet in(downstream) of the MH, we found there was a pipe failure at the 12:00 position(Top) of the pipe. The following morning, we had a contractor on-site to repair the broken VCP pipe. In addition to the pipe repair, we will line the sewer main to insure there are no further issues with this sewer main. 		NA	03/29/2025 02:00														N/A	The sewer main line was repaired the following day(3/29/2025).	The sewer main pipe was repaired by a contractor.	Has already been completed.	This was completed on March 29, 2025.	Repairs to the sewer main line have already been completed on the day after the spill	N/A The VCP sewer main was repaired on the day after the spill, March 29, 2025 	Emergency stand-by person responded to the sewer spill site located at 840 Val Sereno. upon arrival the sewer maintenance technician set up on the downstream MH and began to Jet the pipe. After several attempts, the blockage was cleared. After the blockage was cleared, the sewer main was inspected, found that there was Broken pipe at the 12:00 position(Top of the pipe). We notified a contractor, our contractor responded the next morning and repaired the VCP pipe. Repairs were completed on March 29, 2025. 	NA	
5S	5SSO11061	Active	Sutter Creek CS	Sutter Creek City	900561	1.1	Certified	Dan R Lafontaine	Public Works Director		01-APR-25	01-APR-25	Monthly Category 3 Spill	Highland Drive and Old 49	03/27/2025 08:07	03/27/2025 08:20	03/27/2025 07:00				The manhole is on the side of old Highway 49 and is across from Rayland Drive.  The spill appeared at the manhole.	38.38874	-120.80587	Manhole			500	Spill ran down the side of the highway and was stopped prior to the storm drain.	Y	Dirt drainage on side of highway.  	500				500	Drainage Conveyance System; Other (specify below); Unpaved Surface	Ground on side of highway	Rags blocked the line and caused sewer to overspill at the manhole.  The spill ran down the side of the freeway where it was captured.										03/27/2025 08:48	No monitoring is available on the collection system.  The operator used an estimated time the spill was happening and the amount of water out of the pick hole.	Same as above.	Debris-Rags		Manhole		Vitrified Clay		50	Wastewater was contained on the side of old Highway 49	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow		Sanitary worker deployed and contained the spill with waddle and dirt berm.  Area was decontaminated with bleach after spill was stopped.	Plan Rehabilitation or Replacement of Sewer		This section of the collection system is under contract to be replaced in the 2025-2026 CIP collection system work.		04/01/2025 13:43	Rags blocked a line the line was cleared and the flows were returned to normal.		None	04/01/2025 13:59														NA	NA	NA	Planned replacement of the pipe in the current fiscal year.	NA	Planned for CIP	NA	NA	None	
2	2SSO10127	Active	Delta Diablo SD CS	Delta Diablo	900565	1.0	Work In Progress						Monthly Category 3 Spill	34 Harbor Drive, Bay Point, CA 	03/25/2025 16:46	03/25/2025 17:50	03/25/2025 16:36					38.036835	-121.968147	Manhole		0	840									Drainage Conveyance System; Paved Surface													The spill volume was estimated by using duration and flow rate. Staff determined that the flow rate was 10 GPM based on the Manhole Spill Gauge located in the SERP. Water accumulation on top of the manhole and casting caused the flow rate to appear slightly more than 5GPM. The crew decided to use 10 GPM as the flow rate to cover any discrepancies		Debris-Rags; Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		76	The spill reached the curb and gutter before entering the drainage conveyance system. District staff fully recovered contained, captured, and recovered the total spill volume.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System			Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause				03/25/2025 20:00	Roots from a homeowner's lateral protruded into our mainline, the roots built up with grease and rags until the line stopped flowing completely.		N/A	03/26/2025 16:00																						N/A	
1	1SSO10028	Active	Forestville Water District CS	Forestville Water District	900571	1.2	Certified	Cory Ipsen	Chief Plant Operator		01-APR-25	01-APR-25	Monthly Category 3 Spill	6194 Forestville st	02/07/2025 12:08	02/07/2025 12:10	02/07/2025 12:10				SSO was caused by contractor who was doing a sewer main replacement project had an open sewer main and hit a water main in the trench causing a large volume of water to enter the sewer system causing a water hammer and overflow at our treatment plant where the sewer makes a 90 degree turn to enter the property and is fairly shallow. The over flow did not last for a long duration. Operator arrival time is reflected to be before spill was identified because we were first notified when the water main was broken.	38.47053	-122.88894	Manhole			100	Water flowed down to neighboring gravel driveway where it was absorbed in to the ground	N						0	Unpaved Surface		Spill went approximately 45 feet down the road to the neighboring gravel driveway										02/07/2025 12:12	We used CWEA sewer spill images to estimate flow, with 25 gpm being the average and a brief flow of 100 gpm when the water hammer hit. Again the overflow was caused by a water main break that created excess flow in the main allowing a water hammer and overflow at one man hole and all water flow was stopped within a 5 minute window of the main being broken. We also used an estimation based on how far water traveled down the hill. I believe that even 100 gallons maybe a high estimate.	Spill start time is based on the fact that we were notified immediately by a project manager that the water main had been hit, and estimated the travel time of a couple minutes for the water to get to the plant. Stop Time was calculated based on the fact that we saw the flows from the manhole cover decrease rapidly after the initial surge. We had the water main off within just a few minutes of the water surfacing at the manhole and flows had already nearly stopped when water was shut off.	Damage by Others Not Related to Collection System Construction/Maintenance	Collection system replacement contractor hit water main crossing sewer trench causing all water to flow into new open ended sewer pipe laying in the trench 	Gravity Mainline		Polyvinyl Chloride (PVC)		0	No impact to report gravel driveway was not even disturbed it was just the point water made it to, to get absorbed.	N	Cleaned Up (specify below); Other (specify below)	Cleaned up anything that seemed to be displaced by water flow, water was majority potable water that entered the sewer system when a water main was broken where it crossed the sewer main trenchline and new pipe was being installed	We immediately shut down the water main and noticed the spill for only a couple minutes, no contamination was noticed and cleanup was minimal. 	Other (specify below)	contractor has been asked to keep open ends of pipes covered until next section of pipe is to be connected to prevent this from happening again.	Contractor has been asked to keep open ends of pipes covered until next section of pipe is to be connected to prevent this from happening again. This was a unique event that shouldn't happen again		04/01/2025 15:57	Cause of spill was an open end of a newly replaced sewer main was exposed to a high volume of water when a contractor hit the water main that crossed the sewer trench causing a water surge/hammer that caused the shallow manhole at the entrance of our treatment plant to lift and briefly spill water. It was a unique situation and there have been requests made for open ends of pipe to be covered until new sections are to be installed. 		None as this was a unique scenario	04/01/2025 15:57														We will be sending any cost that is passed down to the district to the contractor that caused the issue.	None as this was a unique scenario	None as this was a unique scenario	The system is currently being replaced as part of the project that was underway when the spill occurred	None as this was a unique scenario	The system is currently being replaced as part of the project that was underway when the spill occurred	None as this was a unique scenario	None as this was a unique scenario	None as this was a unique scenario	
2	2SSO10176	Active	San Bruno City CS	San Bruno City	900572	1.1	Certified	Philip Woffenden	Wastewater Services Manager		01-APR-25	01-APR-25	Monthly Category 3 Spill	172 San Felipe Ave. San Bruno, California 94066	03/28/2025 15:15	03/28/2025 15:25	03/28/2025 15:15				Debris from previous upstream private lateral construction caused blockage on City's Manhole. Mainlines are on a yearly PM program.	37.61836	-122.40714	Manhole	N/A	N/A	60	Spill was on the street and flowed into near by Drain Inlet. Total spill was estimated to travel 570' into a clogged drain inlet and was flushed and apprehended approximately 1,100' on the downstream storm drain inlet. Total spill volume was captured by a combination vacuum truck and was returned to proper sewer system.  See Attachment  	Y	Drainage conveyance system is RCP that is estimated to be 12' in diameter. Drain inlet is clogged by debris preventing sewage spill from further traveling downstream. Drainage system was vacuumed and flushed to capture total amount of spill  See Attachment  	60				60	Drainage Conveyance System	N/A	Spill has travelled to a near by drain inlet for for a drainage conveyance system that is located on the north west corner of San Anselmo Ave. North and San Luis Ave. 	N									03/28/2025 15:45	San Diego Chart was used to estimate the volume coming out of manhole (2GPM) multiplied by 30 minutes equals to 60 gallons.   See Attachments 	Spill start time was 15:15, reported by staff that had seen the spill. Spill end time was when blockage was cleared at 15:45.	Debris from Lateral; Other (specify below)	Debris believed to be dislodged by private plumber performing sewer lateral construction on upper stream main line.	Manhole	N/A	Vitrified Clay	N/A	100	Spill has no impact.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System	Two combination vacuum/jetter trucks were used to flush the sewer lines to restore the flow, and also flushed and vacuumed drainage conveyance system to fully recover spill.  See Attached 	Two combination vacuum/jetter trucks were used to flush the sewer lines to restore the flow, and also flushed and vacuumed drainage conveyance system to fully recover spill.  See Attached 	Other (specify below)	Main line is currently on regular Preventive Maintenance Program	N/A		03/28/2025 16:38	Cause of spill was an assumption by a combination of past experience and confidence in the City's sewer system due to continuous Preventative Maintenance efforts and CCTV.		N/A	04/01/2025 16:38														N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	
4	4SSO10399	Active	La Mirada City CS	La Mirada City	900576	1.1	Certified	Eric Liu	Civil Engineer		03-APR-25	03-APR-25	Monthly Category 3 Spill	Talbot Pump Station (force main break) 15570 Talbot Drive, La Mirada, CA	03/06/2025 12:45	03/06/2025 13:10	03/06/2025 12:00				CSMD Map Sheet No. 2178 Talbot Pump Station (force main break)	33.88912	117.99897	Force Main			200	A portion of the spillage puddled in front of the neighbor's house at 15569 Talbot Drive, while the rest flowed into the street gutter and evaporated before turning the corner, never reaching the storm drain. 	N						50	Paved Surface; Street/Curb and Gutter (2 3)		A portion of the spillage puddled in front of the neighbor's house at 15569 Talbot Drive, while the rest flowed into the street gutter and evaporated before turning the corner, never reaching the storm drain. 										03/06/2025 13:15	Visual	Visual	Other (specify below)	Pipe Structural Problem/Failure	Force Main		Cast Iron		68	A portion of the spillage puddled in front of the neighbor's house at 15569 Talbot Drive, while the rest flowed into the street gutter and evaporated before turning the corner, never reaching the storm drain. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Other Enforcement Agency Notified	A section of the fractured force main has been removed and replaced. 	The pump station was shut down, and the sewage was vacuumed by the sewer maintenance crew. A section of the fractured force main has been removed and replaced. Notified all required agencies. 	Repaired Facilities or Replaced Defect		A section of the fractured force main has been removed and replaced. 		03/06/2025 20:00	N/A		N/A	03/06/2025 20:00														N/A	N/A	N/A	N/A	A section of the fractured force main has been removed and replaced. 	N/A	N/A	N/A	N/A	
2	2SSO10154	Active	Mill Valley City CS	Mill Valley City	900578	1.8	Certified	Andrew Poster	Director of Public Works  		22-APR-25	22-APR-25	Monthly Category 3 Spill	70 Sunrise Avenue	03/14/2025 14:58	03/14/2025 16:07	03/13/2025 14:58				Spill originated 34 feet upstream from 488 Molino Avenue in the City sewer main from a partial blockage, caused by root intrusion, wipes, and an offset. Only appearance point was a private lateral clean out at 70 Sunrise Avenue.	37.89781	-122.53995	Lateral Clean Out (Private)			399	Spill appearance point at 70 Sunrise Avenue private cleanout extended into the surrounding unpaved landscape at 488 Molino Avenue, remained contained to the private landscape near the cleanout.	N						0	Unpaved Surface		Spill appeared at private cleanout into the unpaved landscape at 488 Molino Avenue.	Y	37.89754	-122.5404							03/14/2025 17:31	Spill volume estimation was conducted using a combination of the area/volume method, ponded sewage estimation method, and service cleanout estimation method. No volume of spill was recovered.	Spill start and end time were estimated based on spill volume at appearance point -- especially using the amount of solids/toilet paper that appeared a the spill point and input from the reporting party.	Debris-wipes/Non-disposables; Root Intrusion		Gravity Mainline		Vitrified Clay		70	Sewage only reached the landscape at 488 Molino Avenue.	N	Cleaned Up (specify below); Restored Flow		Crew was immediately dispatched in response to notification of the spill. There was no opportunity to recover the spill, as the sewage spilled into unpaved landscape and it was raining. Crew cleaned up all solid waste.	Inspected Sewer Using CCTV to Determine Cause		Crew conducted a CCTV inspection of the sanitary main, and found root intrusion and wipes. Crew then rodded the pipe to clear out the blockage.		03/14/2025 17:28	Crew conducted a CCTV inspection of the sanitary main, and found root intrusion and wipes.		Following the initial response, crew returned and inspected and cleaned out the main at point of origin as noted in 20b and 20.d.3.  No further investigation necessary.	03/17/2025 10:30														n/a	n/a	n/a	n/a	Video inspected and cleaned out sanitary main at point of spill origination.	n/a	n/a	None necessary.	Following the initial response, crew returned and inspected and cleaned out the main at point of origin as noted in 20b and 20.d.3.  No further investigation necessary.	
5S	5SSO10890	Active	City Of Antioch CS	Antioch City	900582	1.2	Certified	Toby A Beach	Collection System Superintendent		17-APR-25	17-APR-25	Monthly Category 3 Spill	1108 Klengel St	03/17/2025 08:51	03/17/2025 09:02	03/17/2025 07:09				Sewer spill came out of the private cleanout caused by a blockage in the manhole	38.00982	-121.81586	Lateral Clean Out (Private); Upper Lateral (Private)		none	88	Spill came out of private lateral cause by sewer manhole being blocked with debris	N						88	Other (specify below); Paved Surface	driveway	Cleanout private 38.00983n 121.81577w driveway 38.00988n 121.81580w	N	38.00983	121.81577							03/17/2025 09:23	Area/volume	Area/volume	Debris-Rags; Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Manhole		Vitrified Clay		70	sewer made its way to driveway, side of house walkway	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Crew cleared manhole and flushed 3 mainlines. cleaned driveway. Returned all sewage to sewer main	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Plan Rehabilitation or Replacement of Sewer; Post Spill CCTV	plan a manhole rehab	manhole was cleared and added to a weekly inspection until we rehab of manhole is complete		03/17/2025 11:30	the cause of the stoppage was attributed to debris, ragging in the line		none	03/17/2025 11:30														none	rehab manhole	weekly inspection	manhole rehab	We inspected area and will schedule for a manhole rehab	none	manhole will be inspected till rehab is completed	Relieved blockage, sanitized area, and cleaned affected areas	none	
2	2SSO10105	Active	Central Contra Costa Sd CS	Central Contra Costa Sanitary District	900605	1.2	Certified	Paul Seitz	Collection System Division Manager	03-APR-25	11-APR-25	11-APR-25	Category 1 Spill	#3 DeSoto Ct. 	04/01/2025 02:07	04/01/2025 02:10	04/01/2025 02:04				Spill originated from Manhole #124 on map #71A2 in front of address  #3 DeSoto Ct.	37.896815	122.171597	Manhole	N/A	N/A	258	Spill originated from a manhole, traveled about 20 feet to a curb and gutter, about 30 feet in curb and gutter to a drain inlet, from drain inlet to underground  drainage conveyance pipe, from pipe approximately 100 feet to an open drainage ditch then to large storm drain finally reaching San Pablo Reservoir.	Y	See above comments in #9.	0	0	Spill flowed out of a manhole on a paved surface to a drainage system.	233	25	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3); Surface Water		Spill originated from a manhole, traveled about 20 feet to a curb and gutter, about 30 feet in curb and gutter to a drain inlet, from drain inlet to underground  drainage conveyance pipe, from pipe approximately 100 feet to an open drainage ditch then to large storm drain finally reaching San Pablo Reservoir.	Y	37.89687	-122.17163	37.89672	-122.17176	37.87822	-122.18306	37.90413	-122.21469	04/01/2025 13:59	By using our internal flow chart, we estimated the spill rate to the duration of the spill. 	We conducted interviews with the reporting party as well as neighbors in the area. 	Damage by Others Not Related to Collection System Construction/Maintenance; Debris from Construction	5 DeSoto Ct was doing work on their property, including work on their private lateral. Debris from this work got into our mainline causing a plug. 	Gravity Mainline		Vitrified Clay		70	No negative impact was observed by the spill, verified by an independent biologist. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Due to recent rain events in the area, spill containment was only possible on the paved surface portion of the spill. The drainage systems were flowing too full and at to much of a rapid pace to dam up and pump. 	Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Post Spill CCTV	Since there was no defects found in the sewer main, and the cause of the spill was construction debris from a homeowner's lateral, we decided to not alter the current maintenance schedule.	Our mainline is in good condition and no modifications are necessary. This was caused by construction debris from a private party's debris entering our mainline. 	N/A	04/01/2025 17:30	Using CCTV, we found the cause of the spill at the time of the spill response. 	N			San Pablo Creek, San Pablo Reservoir	Reservoir; Stream/Creek		Flowing creek and a reservoir. 	None, verified by an independent biologist. 	Other (specify below)	No impact to public access.	N/A	0	N	Y	Upstream, site and downstream	Dissolved O2, PH, total residual chlorine, ammonia, COD, enterococcus, e. coli, fecal coliform & total coliform. 										
4	4SSO10374	Active	Carson City CS	Carson City	900606	1.2	Certified	Eric Liu	Civil Engineer	07-APR-25	17-APR-25	17-APR-25	Category 1 Spill	1758 - 0211 (17526 East Amantha Avenue, Carson, CA 90746)	04/02/2025 09:00	04/02/2025 09:10	04/02/2025 08:00	04/02/2025 10:00	25-1660		CSMD Mapsheet No. 1758 MMS No. 9289160 Manhole No. 211 was overflowing.	33.87158	-118.25	Gravity Mainline; Manhole			4000	Sewage discharged from Manhole No. 211 into the storm drain. 	Y	Sewage discharged from Manhole No. 211 into the storm drain at 17403 Nauset Court, Carson, CA 90746.	500	3500	Sewage discharged from Manhole No. 211 into the storm drain at 17403 Nauset Court, Carson. The storm drain leads to the Dominquez Channel, where the contaminated water continues downstream, eventually reaching Los Angeles Harbor and the Pacific Ocean. 	3500	500	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Sewage discharged from Manhole No. 211 into the storm drain at 17403 Nauset Court, Carson. The storm drain leads to the Dominquez Channel, where the contaminated water continues downstream, eventually reaching Los Angeles Harbor and the Pacific Ocean. 	Y	33.87301	-118.25456							04/02/2025 09:20	CWEA SSCSC Manhole Gauge. Visual or Eyeball Method.	The start time is obtained from the reporting party, and the end time is determined when the crew clears the obstruction, and the overflow stops. 	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		60	Sewage discharged from Manhole No. 211 into the storm drain at 17403 Nauset Court, Carson. The storm drain leads to the Dominquez Channel, where the contaminated water continues downstream, eventually reaching Los Angeles Harbor and the Pacific Ocean. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Upon arrival, Manhole No. 211 was found overflowing. Containment was set up at the storm drain located at 17403 Nauset Court, Carson. Hydro equipment was used to break down a grease blockage in the mainline. After re-cleaned the mainline with a Warthog nozzle. We vacuumed and collected portion of the wastewater and returned it to the sewer system. The spill area and street were cleaned with fresh water and vacuumed. All required agencies were notified. 	Other (specify below)	Mainline will be televised to determine if further actions are needed. 	Mainline will be televised to determine if further actions are needed. 	N/A	04/02/2025 11:00	Grease Deposition (FOG)	Y	Mainline will be televised to determine if further actions are needed. 	06/10/2025 13:24	Dominguez Channel 	Other (specify below)	Dominguez Channel	Sewage discharged from Manhole No. 211 into the storm drain at 17403 Nauset Court, Carson. The storm drain leads to the Dominquez Channel, where the contaminated water continues downstream, eventually reaching Los Angeles Harbor and the Pacific Ocean. 	No Impacts.	Other (specify below)	No Impact.	N/A	0	N	N	N/A	N/A									Mainline will be televised to determine if further actions are needed. 	
2	2SSO10183	Active	San Mateo CIty CS	San Mateo City	900613	1.1	Ready to Certify						Monthly Category 3 Spill	630 26th Ave	04/03/2025 09:10	04/03/2025 09:20	04/03/2025 09:00				Spill originated from resident lateral due to city main blockage	37.53988	-122.31694	Lateral Clean Out (Private)			200	Seepage along property line to curb, contained at lower storm system	Y	Spill flowed down gutter line into a catch basin that we were able to catch and vacuum before it flowed out to body of water	200				200	Drainage Conveyance System; Street/Curb and Gutter (2 3)		Spill starts at 630 26th Ave then travels down gutter 370 ft.	N									04/03/2025 09:40	Used San Diego method for GPM	investigation based on call reported time and recorded time of when flow was restored to city main.	Root Intrusion		Gravity Mainline		Vitrified Clay		77	Spill slowly flowed down gutter line.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		Spill was contained just before reaching catch basin, vacuumed and washed down spill on resident property and also curb and gutter.  Disinfect resident property and also curb and gutter that spill reached.	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		Will do a post CCTV of sewer line, schedule sewer line for a thorough jet.		04/04/2025 12:52	CCTV to locate root mass, hydro cleaned line followed by post cleaning CCTV		CCTV, hydro clean, post cleaning CCTV	04/04/2025 13:00														none	increased cleaning	Adjust to yearly instead of 2 yr	none	none	None		none	CCTV, hydro clean, post cleaning CCTV	
2	2SSO10200	Active	Sunnyvale CS	Sunnyvale City	900617	1.3	Certified	Winola Cheong	Senior Engineer		07-APR-25	07-APR-25	Monthly Category 3 Spill	580 Fir Ave 	03/06/2025 14:50	03/06/2025 16:30	03/06/2025 14:35				580 Fir Ave. Gravity Main  See attached forms and pictures 	37.38646	-122.01668	Gravity Mainline; Manhole			531	Please see attached forms and pictures 	N						531	Paved Surface; Street/Curb and Gutter (2 3)		Paved residential street. Please see the attached photos 										03/06/2025 17:32	Duration and flow rate calculation 	Eyeball method and duration of flow using San Diego Chart  3 gpm x 177 min - 531	Collection System Maintenance Failure (specify below)	Grease , construction material 	Gravity Mainline		Vitrified Clay		60	Minor hazardous liquids in in public street 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Contained, restored flow, Sanitized, Wash Down, Return to gravity main.	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		CCTV to find cause, Flushed affected and surrounding mains 		03/06/2025 19:41	please see attached spill response forms 		Not needed 	03/10/2025 13:02														not applicable 	Not deemed necessary, Single event  	Not Deemed necessary 	Not deemed necessary 	CCTV was Used 	Not at this time 	Not at this time 	Not at this time 	Not needed 	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	900625	1.1	Certified	Kent Vian	Asst. Deputy Director		14-APR-25	14-APR-25	Monthly Category 3 Spill	NOT# 40201229795 6206 OAK RIDGE RD.	04/02/2025 11:08	04/02/2025 11:46	04/02/2025 11:07				THE SPILL ORIGINATED FROM A MANHOLE LOCATED BEHIND 6206 OAK RIDGE RD.	32.8033	-117.06093	Manhole	NA	NA	760	THE SPILL TRAVELED WEST 300' DOWN THE CANYON TO A WALKING PATH THEN TRAVELED SOUTHEAST 150' AND SETTLED INTO THE CANYON.	N	THE SPILL DID NOT REACH A DRAINAGE CONVEYANCE SYSTEM.	0				0	Unpaved Surface	NA	THE SPILL EXITED THE MANHOLE. ( 11.C, 11.D). THE SPILL TRAVELED WEST 300' DOWN THE CANYON TO A WALKING PATH. (11.F, 11.D). THEN TRAVELED SOUTHEAST 150' AND SETTLED INTO THE CANYON.(11.H, 11.I).	Y	32.80326	-117.06094	32.80272	-117.06157	32.80226	-117.06093			04/02/2025 12:23	THE SPILL VOLUME ESTIMATIONS WERE CALCULATED USING THE FLOW AND DURATION METHOD.	THE SPILL START TIME WAS WHEN THE CONSUMER OBSERVED AND NOTIFIED DISPATCH OF THE SPILL AND THE END TIME WAS WHEN THE BLOCKAGE WAS RELIEVED AND CREWS CONFIRMED THE SPILL STOPPED.	Root Intrusion	NA	Manhole	NA	Concrete; Other (specify below)	THE FAILURE LOCATION WAS A CONCRETE MANHOLE.	54	THE SPILL IMPACTS WERE TO RANCHO MISSION CANYON.	N	Cleaned Up (specify below); Restored Flow		CREWS WERE UNABLE TO CONDUCT CONTAINMENT DUE TO THE TERRAIN. CLEANED UP DEBRIS, (SOLIDS) AROUND THE OVERFLOWING MH.	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV	NA	Operator training with data entering and SOP. Adjust all assets in the area to match 3-month frequency.		04/02/2025 18:00	THE CAUSE OF THE SPILL WAS HEAVY ROOT INTRUSION INTO THE MANHOLE.		NO	04/03/2025 18:30														N/A	Adjust all assets in the area to match 3-month frequency. Data entry training to new personnel 	See 20.d	N/A	N/A	N/A	See attached DOC 6206 OAK RIDGE RD. 	N/A	NO	
2	2SSO10184	Active	San Rafael SD CS	San Rafael Sanitation District	900369	2.2	Certified	Philip Buckley	Principal Civil Engineer	19-MAR-25	17-APR-25	17-APR-25	Category 1 Spill	Jewell and Eucalyptus Intersection	03/15/2025 10:18	03/15/2025 11:55	03/14/2025 09:00	03/15/2025 12:36	25-1328		The home owner at #7 Broadview had noticed the overflow the day before. She had tried to notify the district the day of but could not locate the districts telephone number. she then sent an email to some part of The City Of San Rafael's website.  After no response she had notified the police department the following day. They contacted Roto Rooter who performs our after hours work. Roto Rooter then contacted my boss who then informed me of the spill. Roto Rooter cleared the stoppage. The spill coming from manhole MH735 entered a catch basin CB2155 off of Jewell and Eucalyptus. It traveled underground in a storm water pipe system. Then reached Montecito storm water pump station and was then pumped to the San Rafael Creak which is tied into the San Pablo Bay.	37.97563	-122.51214	Manhole	Spill was coming from edges of manhole and from pick hole of man hole.		4691	The spill came out of the manhole MH735 and flowed down the asphalt to catch basin CB2155. And from catch basin it flowed through the storm water underground  pipe system which fluctuates in sizes ranging from 24  PVC down to 12  PVC all the way up to 60  CMP were it finally goes to 24  RCP and enters the Montecito storm water pump station. The Montecito storm pump station then pumps into the San Rafael Creak which ties into the San Pablo Bay. City has 0.87 inches of rain on 3/14/25 and spill mixed with stormwater runoff after reaching storm drain.  	Y	Underground storm pipe system which fluctuates in sizes ranging from 24  PVC down to 12  PVC all the way up to 60' CMP were it finally goes to 24  RCP and enters the Montecito storm water pump station.	0	0	Montecito storm water pump station. Then pumped to the San Rafael Creek where it then ties into the San Pablo Bay	4691	0	Surface Water		After gravity flow through storm water drainage pipes the spill entered the Montecito Storm Water Pump Station which then discharges to the San Rafael Creek	Y	37.97563	-122.51552							03/15/2025 11:57	We counted the number of upstream lateral connections and calculated the amount based on the length of time the manhole was actively spilling	The spill started Friday at 9 am and stopped on Saturday at 11:57 am.  The initial estimation called into OES as based on 1680 minutes spill was active.  However the spill was actually active for 1677 minutes and thus the spill amount released was reduced by 13 gallons.  Initially it was called in 4,965 gallons but after recalculating the spill amount was updated to 4,952 gallons.  	Other (specify below); Pipe Structural Problem/Failure - Controls	We identified a pipe upstream with a large void.  The debris and pieces of pipe from that void traveled downstream and created a blockage	Gravity Mainline		Vitrified Clay		79	no visual impacts 	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Restored Flow	Notified Marin County Environmental Health Services. We had rain off and on the week before and during that weekend but it did not cause the spill	After clearing the blockage, our after hours contractor Roto-Rooter washed down the affected areas and collected all wash down water.  	Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Plan Rehabilitation or Replacement of Sewer	The District has coordinated with the City to make changes to the City website to redirect residents to the District website to report spills. The changes should make it easier for residents to report spills thereby reducing District response time. 	Currently talking to contractors for quotes to replace the pipe with the void	City website updates have been completed for spill reporting.   We anticipate the pipe replacement to be completed in April 2025 pending contractor scheduling which has not been finalized.	03/15/2025 12:36	The week following the spill we televised the pipe upstream of where the spill occurred and located a void.	N			San Rafael Creek	Stream/Creek		It's a tidal creek that drains the City and flows to San Pablo Bay	no impacts to aquatic life	Other (specify below)	no public access	Marin County Environmental Health Services	0	N	N												
4	4SSO10500	Active	Ventura County Waterworks District No. 16-Piru CS	Ventura Cnty Special Districts	900663	1.1	Certified	Arturo Aseo	Deputy Director		08-APR-25	08-APR-25	Category 2 Spill	Agricultural drainage ditch near Piru WWTP percolation ponds.	12/03/2024 09:39	12/03/2024 10:29	12/02/2024 22:00				The buried 6-inch PVC effluent pipe adjacent to the percolation ponds was exposed due to the soil around the pipe being eroded away. The exposed pipe no longer being supported, failed and separated at a joint and discharged to an agricultural drainage ditch. See attached photos and map.	34.40068	-118.82721	Force Main	Secondary treated effluent spill to an agricultural drainage ditch. 	Please note the following why this report is submitted late: - It took a while to get login access into CIWQS due to system being down or something.	9750	Photographs include damaged force main, repaired force main and berm, and cleanup efforts.	Y	Spill reached a private agricultural drainage ditch. See attached photos. Effluent has percolated into the surface of the dry ground, and the rest have evaporated into the atmosphere. What was recovered during the cleanup was the saturated soil which was disposed of properly. Quantification of the spill is tricky and can only be guesstimated.  	5000	0			5000	Drainage Conveyance System	N/A	Effluent spill was confined in an agricultural drainage system ditch. 	Y	34.40068	-118.82721							12/03/2024 10:45	Volume was calculated by multiplying length of spill on ditch (0.37 miles) by average width of spill on ditch (4 ft) and estimated depth of effluent (2 inches). Doing the math, spill volume equals 9,750 gallons.	We assumed the spill started in the evening of 12/2/24 prior to the discover of the spill in the morning of on 12/3/24 by a farmer who travels the area regularly. Total time of spill is roughly 10 hours. 	Pipe Structural Problem/Failure - Installation	N/A	Force Main	N/A	Polyvinyl Chloride (PVC)	N/A	50	Minimal. Effluent spill was confined within the agricultural drainage ditch. Contaminated soil was immediately recovered and disposed of properly. 	N	Cleaned Up (specify below)	Recovery and cleanup operations were immediately performed the day of discovery of the spill. 	Upon discovery of spill, immediately isolated the valve feeding the force main, dispatched sanitation crew to the site, contacted a contractor to perform repairs and clean, and contacted the County of Ventura Environmental Health Division. 	Repaired Facilities or Replaced Defect	N/A	Perform regular check and inspection of the force main line route for any anomalies. 	Continue regular inspections of the force main line route, and especially during and after a major rain event. 	12/06/2024 10:00	The buried 6-inch PVC effluent pipe adjacent to the percolation ponds was exposed due to the soil around the pipe being eroded away likely from previous rain events. The exposed pipe no longer being supported, failed and separated at a joint and discharged to an agricultural drainage ditch. The pipe break was discovered by a farmer who called the Water & Sanitation staff about the sewer spill. 	N												Y													
4	4SSO10430	Active	Santa Fe Springs City CS	Santa Fe Springs City	900665	1.2	Certified	Eric Liu	Civil Engineer	08-APR-25	22-APR-25	22-APR-25	Category 1 Spill	2026 - 0052 (11726 Glenworth Street, Santa Fe Springs, CA)	04/06/2025 18:08	04/06/2025 19:08	04/05/2025 21:30	04/06/2025 18:43	25-1731		CSMD Mapsheet No. 2026 MMS No. 9294899 Manhole No. 52 was overflowing.	33.93985	-118.08302	Manhole	Manhole No. 52		1000	Sewage discharged from Manhole No. 52 into storm drain.	Y	Sewage discharged from Manhole No. 52 into the storm drain, at 11756 Glenworth Street, Santa Fe Springs, CA, 90670.	200	800	Approximately 800 gallons of sewage spill entered a storm drain at 11756 Glenworth Street, Santa Fe Springs, CA, the spill would likely flow untreated through the city's storm drain system, eventually reaching the San Gabriel River and then the Pacific Ocean. 	1000	200	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Approximately 800 gallons of sewage spill entered a storm drain at 11756 Glenworth Street, Santa Fe Springs, CA, the spill would likely flow untreated through the city's storm drain system, eventually reaching the San Gabriel River and then the Pacific Ocean. 	Y	33.93972	-118.08218							04/06/2025 22:00	CWEA SSCSC Manhole Gauge	The start time is obtained from the reporting party, and the end time is determined when the crew clears the obstruction, and the overflow stops. 	Debris-Rags		Gravity Mainline		Vitrified Clay		41	Approximately 800 gallons of sewage spill entered a storm drain at 11756 Glenworth Street, Santa Fe Springs, CA, the spill would likely flow untreated through the city's storm drain system, eventually reaching the San Gabriel River and then the Pacific Ocean. 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow		Arrived at 11726 Glenworth Street, Santa Fe Springs, CA, and located overflowing Manhole No. 52. Sewage was contained in front of the storm drain at 11756 Glenworth Street using absorbent socks. Rodder equipment was used to break down a mainline stoppage caused by heavy wipes and rags. Approximately 1,000 gallons escaped the sewer system, and about 200 gallons were captured with Vactor truck. All required agencies were notified. 	Other (specify below)	Mainline will be televised to determine if further actions are needed. 	Mainline will be televised to determine if further actions are needed. 	N/A	04/06/2025 22:00	Debris-Rags	Y	Mainline will be televised to determine if further actions are needed. 	06/06/2025 11:21	San Gabriel River	River		San Gabriel River	No Impacts	Other (specify below)	No Impacts	N/A	0	N	N	N/A	N/A									Mainline will be televised to determine if further actions are needed. 	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	900686	1.3	Certified	John J. Hough	San Dist. Superintendent	09-APR-25	18-APR-25	18-APR-25	Category 1 Spill	358103	04/06/2025 17:14	04/06/2025 18:06	04/06/2025 17:00				See Attached Spill map with Photos.	38.5032	-121.4326	Manhole		Spills were from two SacSewer manholes	647	See Attached Spill map with Photos.	Y	See Attached Spill map with Photos.	379	0	See Attached Spill map with Photos.	213	434	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water		See attached Spill Map with Photos.	Y	38.5032	-121.4326	38.5031	-121.4326	38.5031	-121.4372			04/06/2025 19:02	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Fats, Oil and Grease (FOG)		Gravity Mainline		Cast Iron; Vitrified Clay		52	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified Sacramento County Department of Water Resources	See Attached Description of Spill Event	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	SacSewer inspected the main line with CCTV on April 6, 2025. Based on the findings, SacSewer adjusted the preventative maintenance schedule from a 3-month to a 1-month frequency. SacSewer will also reach out to the surrounding businesses and provide FOG literature.	See Attached Description of Spill Event.	SacSewer inspected the main line with CCTV on April 6, 2025.  SacSewer adjusted the preventative maintenance schedule from a 3-month to a 1-month frequency on April 16, 2025.	04/07/2025 04:15	See Attached Description of Spill Event.	N			Morrison Creek	Stream/Creek		Morrison Creek is a combination of earthen and concrete-lined channels that carry surface runoff. It has water for most of the year, with high levels during the wet season. 	No observed impacts to aquatic life	Other (specify below)	No public access impact	NA	0	N	N												
2	2SSO10179	Active	San Jose City CS	San Jose City	900687	1.2	Certified	Binh Tran	Division Manager 		16-APR-25	16-APR-25	Monthly Category 3 Spill	901 E Santa Clara St San Jose, CA  95116	03/26/2025 09:28	03/26/2025 09:55	03/26/2025 08:10				There were multiple appearances inside the community center, at 901 E Santa Clara St, and one appearnce point located outside the property. A picture of the spill appearance point is included in the attachement tab	37.34662	-121.8722	Inside Building or Structure; Lateral Clean Out (Public)		7 bathrooms, 1 kichen and 1 cleanout	435	The spill discharged from multiple locations within the community center,  which were contained within their spilled area.  In addition, the cleanout located in the front of the community center was overflowing,  reaching a nearby storm catch basin #26444.  During the response, the crew found the dry end at storm MH# 92238.  The spill did not reach the waterway. Pictures and a map of the spill extent are included in the attachment tab.  Due to the spill being inside a public structure the cleanup was contracted out. 	Y	The spill a reached a nearby storm inlet approximately 140 ft from the spill appearance point. This storm inlet is connected to the City of San Jose's municipal separate storm sewer system. The sewage traveled within the storm system and was capturded at storm manhole #92238 where the crew set up for cleaning using the two truck combo method. Pictures of the storm drain conveyance system and a map of the spill path is included in the Attachments Tab.	106				435	Building or Structure; Drainage Conveyance System; Drainage Conveyance System that discharges to surface water		The spill (sewage) traveled along the street and curb/gutter from the cleanout (spill appearance point). The cleanout is identified in 11.d. and 11.e. It then entered City's storm inlet and drainage system. The location of the storm drain inlet is identified in 11.f and 11.g. The crew was able to determine a spill end point in the storm drain conveyance system and used sandbags for containment in the nearby storm manhole. Coordinates for the containment in the storm system manhole are identified in 11.h and 11.i.  The spill inside the building was contained within the building.	Y	37.34662	-121.8722	37.3452	-121.87162	37.34613	-121.86961			03/26/2025 10:31	The total and the recovered spill volume was estimated using measurements from the responding crew. On land, the crew recorded spill measurements along the curb/ gutter and on the asphalt.  In addition, the crew recorded spill depths within the storm drain conveyance system pipes from the inlet to the sandbag containment in storm manhole 92238.	The reporting party first noticed the spill on 3/26/2025 at 09:00. This is a City of San Jose's Community Center which opens at 8:00 am.  Based on the reporting party's information, and the field observation it was assumed that the SSO likely started around 8:10 on 3/26/2025.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		18	No impact to the CSJ waterways as the spill was contained within MS4.  No lasting impact to street/curb and gutter where overflow occurred due to maintenance staff cleaning.  The spill inside the building was fully recovered and the area was restored to the original condition.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System; Returned Portion of Spill to Sanitary Sewer System	Cleared the spill and cleaned the area	Upon arrival, the responding City crew immediately cleared the blockage.  In addition,  the community center cotracted the cleanup to be performed by a private contractor.  Due to internal team miscommunication, our response team was not aware of all spill appearances caused by the blockage.  Our first responder was notified of the spill appearance the following day, in which they followed up with the community center to gather information about spill appearance points. With this information, our responder performed investigation within the storm drain conveyance system and placed sandbags in dry end storm manhole.  Next, the crew began their cleanup efforts on the street and curb/gutter. Crew used two combo trucks, one flushed water upstream and other vacuumed the water at the downstream containment in the storm drain manhole. All of the spill and induced water was cleaned up from both the land and storm drain conveyance system. Pictures of the containment locations were added to att	Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		The sewer was immediately CCTV'd following the overflow event in order to determine the cause. Further corrective actions the city has planned for this segment include: 1. Revideo segment in 12 months and adjust the cleaning cycle according to the findings. 2. The Engineering team to reach out the ESD FOG team to inspect nearby businesses. 3. Complete CIPP @ 322.8' DS on segment 36892		03/27/2025 14:00	While the Responding Crew cleared the blockage in the plugged sanitary mainline, the Crew documented their findings. A pipe basket was used to collect the grease that was removed while clearing the blockage within the mainline. After conducting a follow up CCTV of the sanitary mainline pipe, there was no major O&M observation or structural defects that may have contributed to the blockage.		NA	04/15/2025 15:00														NA	The city has planned the following O&M modifications to prevent any repeat of the spill event: 1.Keep the cleaning frequency to 84 month cycle and make adjustement to the cleaning cycle based on the 12 month revideo findings.   	NA	NA 	Problem sanitary sewer asset was video inspected after the SSO on 3/27/2025. The pipe is in good condition only the grease build up.  Segment 36892 was recommended for CIP patch.	NA	NA	NA	NA	
4	4SSO11406	Active	Channel Islands Beach CSD CS	Channel Islands Beach CSD	900701	1.2	Certified	Peter Martinez	General Manager		10-APR-25	10-APR-25	Monthly Category 3 Spill	4053 Sunset Lane	08/19/2024 09:10	08/19/2024 09:15	08/19/2024 09:00				4053 Sunset Lane, Oxnard CA 93035. 	34.17356	-119.23374	Other Sewer System Structure	Sewer air relief valve		400	Spill occurred due to mechanical failure of a sewer air relief valve.	N						400	Street/Curb and Gutter (2 3)		Spill occurred at 4053 Sunset Lane and ran approximately 300 ft northeast on Channel Islands Blvd.										08/19/2024 09:25	length x width x depth x 7.48 was used to calculate the total spill volume.	Operator noticed when performing lift station inspections.	Air Relief Valve (ARV)/ Blow-Off Valve (BOV) Failure		Air Relief Valve (ARV)/ Blow-Off Valve (BOV)		Polyvinyl Chloride (PVC)		20	100% of spill volume was recovered and returned to the sanitary sewer. Spill did not enter a waterway.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other Enforcement Agency Notified; Returned All Spill to Sanitary Sewer System		Spill was contained with sand berm and fully recovered by Vactor truck and returned to the sanitary sewer.	Adjusted Schedule/Method of Preventive Maintenance		Implemented weekly inspections of all air relief valves in the system to reduce the chance of a reoccurrence. Staff has also gone through training on how to maintain and rebuild these air relief valves.		08/19/2024 11:00	Spill was caused due to a damaged air relief valve.		N/A	08/19/2024 12:30														N/A	Increased training and maintenance of air relief valves in the system.	Increased to weekly maintenance.	No planned replacement at this time.	Repaired air relief valve	No capital improvement for sewer air relief valves at this time.	Input the weekly air relief valve inspections in our work order management system.	N/A	N/A	
6B	6SSO11151	Active	June Lake PUD CS	June Lake PUD	900702	1.2	Certified	Ken Blaisdell	Superintendent	10-APR-25	25-APR-25	25-APR-25	Category 1 Spill	Bottom of Mountain View Lane by Reversed Creek	04/08/2025 07:17	04/08/2025 07:30	03/25/2025 12:25			25-APR-25	This spill was reported to us on 3/8/25 at 7:17am, which was found by a resident hiking by the location. We responded to the site and found that a small spill had occurred, there was no discharge upon are arrival and we noticed where a spill had occured. Upon pulling the manhole lid, we found the manhole near full. Immediate steps were taken to contain any future spills with sandbags and waddles.  As soon as we set that up, we set one person on collecting water samples from the creek and  the rest of us collected pumps, and brought our vactor truck. We connected the pumps to the vactor with 1 1/2 inch hose and were able to pump the wetwell down to the bottom where we located the cause. Roots had intruded and were blocking outflow. We cut out what roots we could, removing as much as possible, then vactored the line approx 20feet past the manhole. Flow thrugh the manhole was verified and we will be performing daily checks at the site.	37.76325	-119.11322	Gravity Mainline			100	Photographs in the attachment tab. 	N				Photgraphs in the attachment tab.	100	0	Surface Water		This spill was reported to us on 3/8/25 at 7:17am, which was found by a resident hiking by the location. We responded to the site and found that a small spill had occurred, there was no discharge upon are arrival and we noticed where a spill had occured. Upon pulling the manhole lid, we found the manhole near full. Immediate steps were taken to contain any future spills with sandbags and waddles.  As soon as we set that up, we set one person on collecting water samples from the creek and  the rest of us collected pumps, and brought our vactor truck. We connected the pumps to the vactor with 1 1/2 inch hose and were able to pump the wetwell down to the bottom where we located the cause. Roots had intruded and were blocking outflow. We cut out what roots we could, removing as much as possible, then vactored the line approx 20feet past the manhole. Flow thrugh the manhole was verified and we will be performing daily checks at the site.	Y	37.76325	-119.11322							04/08/2025 08:00	Volume was estimated at 50-100 gallons based on knowing only 3-4 houses on that 1 line. only one house was known to be occupie and flows down that line are minimal. We are checking manhole daily to make sure it is still flowing.	Dimensions between the manhole and where the dischargs occured and entrance point of the creek.	Collection System Maintenance Failure (specify below)	Spill was caused by an intrusion of tree roots. The location of the manhole is near a creek with aspen and pine trees nearby.	Gravity Mainline		Concrete		50	Very little impact noticed, 3 water quality samples taken nitrates. Sample results for the 3 days were all non detect for Nitates. Still waiting on results for bacti.	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow		Brought in sandbags, waddles. Nothing was spilling from manhole at this point.	Adjusted Schedule/Method of Preventive Maintenance		Brought in pumps, pumped down wetwell into storage tank. Removed roots when safe to access, vactored line to restore flow to sewer.	Brought in pumps, pumped down wetwell into storage tank. Removed roots when safe to access, vactored line to restore flow to sewer.	04/08/2025 10:35	Spill was caused by an intrusion of tree roots. The location of the manhole is near a creek with aspen and pine trees nearby.	Y	Waiting on bacti sample results. Continue weekly visual monitoring of manhole.	05/05/2025 10:38	Reversed Creek	Stream/Creek		Creek	None observed	Temporary Restricted Use		June Lake PUD	1	N	Y	Upstream, at spill point, downstream	Nitrate, samples for bacti, e-coli.									Waiting on bacti sample results. Continue weekly visual monitoring of manhole.	
2	2SSO10104	Active	Ccsf - San Francisco Airport CS	CCSF - San Francisco Airport	900704	1.1	Certified	Jennifer Acton	Director of Maintenance		11-APR-25	11-APR-25	Monthly Category 3 Spill	Gate G3 Pedestrian Breezeway	04/03/2025 08:55	04/03/2025 09:10	04/03/2025 08:45				Spill originated and appeared from a hole in a corroded sanitary sewer pipe attached to a support pillar in the pedestrian breezeway.	37.61845	-122.39093	Inside Building or Structure	Compromised pipe is located in the breezeway under the boarding area overhang.		83	Spill impacted two sections of paved surface within the breezeway and one section on the airfield ramp.	N						83	Paved Surface		Spill impacted two sections of paved surface within the breezeway and one section on the airfield ramp.  The majority of the spill ponded in one section of the breezeway at the low spot in the paved area.	Y	37.61743	-122.39085							04/03/2025 11:30	Spill volume was estimated using field measurements of impacted areas collected by responding Spill Team member and using area/volume calculations.	Spill times were estimated using information provided by Airport personnel who responded to the spill incident.	Other (specify below)	Pipe Structural Problem/Failure - Corrosion	Other (specify below)	Vertical stack pipe	Cast Iron		28	Spill impacted paved surfaces in multiple areas including the pedestrian breezeway and airfield ramp.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Airport Operations, Airport Plumbers, and Airport Spill Team responded to the incident.  Plumbers inspected and identified pipe failure and worked with Airport tenant to shut down use of dishwasher and sinks to stop spill.  Plumbers repair the compromised section of pipe and restored flow to the system.  Spill Team collected field measurements for volume calculation.  Airport scrubbing contractor mobilized to clean the impacted paved surface areas.  All wastewater form the cleaning was returned to the Airport's sanitary sewer system for processing.	Repaired Facilities or Replaced Defect		Corroded section of pipe was removed and replaced with new pipe.  No further action required.		04/03/2025 15:00	Airport Plumbers on scene inspected and identified the location of the hole in the corroded pipe where wastewater originated.		NA	04/03/2025 15:00														NA	NA	NA	NA	Corroded section of pipe was removed and replaced with new pipe.  	NA	NA	NA	NA	
2	2SSO10170	Active	Richmond City CS	Richmond City	900708	1.1	Certified	Mary Phelps	Water Resource Division Manager		20-APR-25	20-APR-25	Category 1 Spill	S. 26th St & MLK Jr.	04/09/2025 08:20	04/09/2025 08:50	04/07/2025 15:30	04/09/2025 08:53	25-1794		See Attached	37.92401	-122.34466	Manhole			9960	See Attached	Y	See Attached	100	9860	See Attached	9860	100	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water		See Attached	Y	37.92451	-122.34454	37.9251	-122.34456	37.91582	-122.34737			04/09/2025 09:00	Visual estimation based on operator training and quantity of private lateral connections upstream. 	Interviews with witnesses, residents, and reporting party.	Debris-Rags; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		30	Spill contacted street, curb, gutter, and entered a dry stormwater conveyance.	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Restored flow, contacted residents, sanitized street curb and gutter. Recovered as much as possible from stormwater conveyance. The response included 6 Contractor employees, two vactor trucks, and a City of Richmond employee. 	Other (specify below)	Provided all nearby residents with FOG receptacles and provided BMPs on household FOG and wipes. 	Provided all nearby residents with FOG receptacles and provided BMPs on household FOG and wipes. 	N/A	04/09/2025 11:00	The cleared blockage consisted of rags and grease. 	N			SF Bay	Slough		Stormwater conveyance system and potentially Meeker Slough	None	Other (specify below)	Notified East Bay Parks and Recreation	State of California	0	N	N												
2	2SSO10104	Active	Ccsf - San Francisco Airport CS	CCSF - San Francisco Airport	900716	1.1	Certified	Jennifer Acton	Director of Maintenance		11-APR-25	11-APR-25	Monthly Category 3 Spill	Gate C5 ramp	04/10/2025 10:44	04/10/2025 10:47	04/10/2025 10:30				Spill originated from one sanitary sewer manhole located on airfield ramp closest to Gate C5.	37.61536	-122.38207	Manhole			115	Sewage overflowed from one sanitary sewer manhole on the ramp and flowed downgradient on the paved surface to the north towards the VSR.  The spill continued to flow downgradient past the VSR and towards a storm drain catch basin located on the airfield taxilane. 	Y	Storm drain catch basin.  The volume of spill that entered the storm drain catch basin was contained in the sump of the basin, below the outlet pipe.  	1				115	Drainage Conveyance System; Paved Surface		Sewage overflowed from one sanitary sewer manhole on the ramp and flowed downgradient on the paved surface to the north towards the VSR.  The spill continued to flow downgradient past the VSR and towards a storm drain catch basin located on the airfield taxilane. 	Y	37.61536	-122.38308	37.61591	-122.38271					04/10/2025 10:52	Spill volume was estimated using field measurements collected by responding Spill Team member on scene and area/volume calculation.  Eye ball estimate of the flow rate was also used to estimate and calculate the volume of sewage that affected one storm drain catch basin.	Estimated spill times were determined from information provided by Airport personnel who responded to the spill incident.	Debris-General; Fats, Oil and Grease (FOG)		Gravity Mainline		Cast Iron		40	Spill impacted paved surfaces on the airfield ramp, VSR, and taxilane.  One storm drain catch basin was affected.  	N	Cleaned Up (specify below); Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Airfield Operations, Airport Fire Dept., Airport Duty Manager, Airport Plumbers. Airport Spill Team, and Airport Scrubbing Contractor responded.  Airfield Operations Officer controlled traffic in the area of the spill.  Airport Fire Dept. deployed absorbent material to protect the downstream storm drain catch basin.  Airport Plumbers used the vactor truck and hydrojetter to clear the blockage and restore flow to the sanitary sewer system.  Airport Spill Team collected spill incident information and field measurements to calculated the spill volume.  Airport Scrubbing contactor cleaned the impacted paved surface.  Airport Plumbers used the vactor truck and water supply to rinse and pump out the affected storm drain catch basin.  All wastewater was returned to the Airport's sanitary sewer system for processing.	Other (specify below)	Gravity mainline is on a regular preventative maintenance hydrojetting schedule.	Gravity mainline is on a regular preventative maintenance hydrojetting schedule.		04/10/2025 12:45	Airport Plumbers investigated and determined the blockage was caused by grease deposition and general debris in the downstream gravity mainline.		None	04/10/2025 12:45														NA 	NA	NA	NA	NA	NA	NA	NA	None	
2	2SSO18112	Active	Castlewood CS	Alameda Cnty Public Works Agency	900719	1.0	Work In Progress						Monthly Category 3 Spill	Castlewood Drive	04/08/2024 12:00	03/25/2024 12:00	03/24/2025 23:00				Manhole behind 10 Fairway Ln. 37.63368578658133, -121.89730167315793	37.633685786581	-121.897301673158	Manhole			50	Flowed into trench that had been dug where the repair was to be made.We were pumping down the manhole but the amount of infiltration made it difficult. We believe the  majority of the water was groundwater infiltration while the small amount of flow from the homes  pushed the water out to cause the spill. A repair was also scheduled for the same week but the work  was still being prepared (USA etc)	N						50	Other (specify below)	Pumped pooled water into sewer cleanout	Manhole behind 10 Fairway Ln. 37.63368578658133, -121.89730167315793. Flowed into trench that had been dug where the repair was to be made. A line was run from the manhole to a downstream cleanout and the volume of water in the manhole was pumped out	Y	37.633685786581	-121.897301673158							03/24/2025 23:00			Root Intrusion		Manhole		Polyvinyl Chloride (PVC)		35	no impact	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System; Returned Portion of Spill to Sanitary Sewer System		We were pumping down the manhole but the amount of infiltration made it difficult. We believe the  majority of the water was groundwater infiltration while the small amount of flow from the homes  pushed the water out to cause the spill. A repair was also scheduled for the same week but the work  was still being prepared (USA etc)	Repaired Facilities or Replaced Defect																															
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	900721	1.7	Certified	Kent Vian	Asst. Deputy Director		24-APR-25	24-APR-25	Monthly Category 3 Spill	NOT# 40201232734 13283 CAMINITO MENDIOLA	04/11/2025 10:24	04/11/2025 11:14	04/11/2025 10:23				THE SPILL ORIGINATED FROM A MANHOLE LOCATED IN THE STREET NORTHWEST OF 13283 CAMINITO MENDIOLA.	32.9593	-117.17827	Manhole	NA	NA	172	THE SPILL EXITED THE MANHOLE AND TRAVELED TO THE NORTH AND SOUTH SIDE OF THE STREET AND ENTERED THE STORM DRAIN INLET, WHERE CREWS WERE ABLE TO CONTAIN AND RETURN THE SEWER TO THE COLLECTIONS SYSTEM.	Y	THE DRAINAGE CONVEYANCE SYSTEM TRANSPORTED THE SPILL WAS AN 18  RCP PIPE THAT FEEDS INTO A 36  RCP PIPE.	163				163	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)	NA	THE SPILL EXITED A MANHOLE LOCATED NORTHWEST OF 13283 CAMINITO MENDIOLA (11D., 11E). THEN, THE SPILL TRAVELED 30' TO TWO STORM DRAIN INLETS ON THE NORTH AND SOUTH SIDE OF THE STREET (11.F, 11. G,11.H,11.I) WHERE CREWS WERE ABLE TO CAPTURE THE SEWER FROM THE STORM DRAIN. The Remaining 9 gallons dried in the curb gutter and street. 		32.9593	-117.17827	32.9594	-117.17821	32.9593	-117.17816			04/11/2025 13:15	THE SPILL VOLUME ESTIMATIONS WERE CALCULATED USING THE FLOW AND DURATION METHOD.	THE SPILL START TIME WAS WHEN THE CONSUMER OBSERVED AND NOTIFIED DISPATCH OF THE SPILL, AND THE END TIME WAS WHEN THE CREW VACCUMED THE SPILLING MANHOLE UNTIL THE SPILL STOPPED.	Debris from Lateral; Root Intrusion	NA	Manhole	NA	Polyvinyl Chloride (PVC)	NA	37	THE IMPACTS OF THE SPILL WERE TO THE STREET, CURB AND GUTTER AND STORM DRAINS.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	CREW PREFORMED A CONFINED SPACE ENTRY TO REMOVE HEAVY ROOTS FROM THE MANHOLE.	CREWS IMMEDIATELY CONTAINED THE SPILL FROM ENTERING THE STORM DRAIN, RELIEVED AND TRACKED THE FINAL DESTINATION OF THE SPILL, CLEANED UP THE AREA AND STORM DRAINS, PERFORMED A CONFINED SPACE ENTRY TO REMOVE ROOTS AND CCTV MAINS. CREWS WASHED DOWN THE STREET, CURB & GUTTER AND STORM DRAINS COLLECTING THE WATER DOWNSTREAM.	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV	NA	 changed frequency to 12 months 		04/11/2025 21:00	CCTV FOOTAGE CONFIRMED THAT THE ROOT INTRUSION FROM THE MANHOLE WAS THE PRIMARY CAUSE OF THE SPILL. THERE WAS ALSO PLASTER DEBRIS BUILDUP 4' UPSTREAM OF THE ROOTBOUND MANHOLE POSSIBLY FROM POOL CONSTRUCTION.		NONE	04/11/2025 20:00														NA	changed frequency to 12 months 	Yes	N/A	N/A	Not at this time. 	See Doc 13283 Caminito Mendiola	N/A	NONE	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	900722	1.4	Certified	Kent Vian	Asst. Deputy Director		24-APR-25	24-APR-25	Monthly Category 3 Spill	NOT-40201232968-2440 AZURE COAST DR.	04/12/2025 09:43	04/12/2025 10:16	04/12/2025 09:40				THE SPILL ORIGINATED FROM AN 8  CLEAN-OUT MAIN PIPE LOCATED IN THE MIDDLE OF THE STREET, SOUTHEAST 2440 AZURE COAST DR.	32.84959	-117.25003	Other (specify below)	CLEAN OUT AT THE DEAD END OF THE MAIN.	N/A	315	THE EXTENT OF THE SPILL BOUNDARIES IS THAT SPILL STARTED FROM AN 8  CLEAN-OUT AND THEN TRAVELED NORTHWEST TO THE CURB GUTTER INTO THE STORM DRAIN INLET, WHERE CREWS WERE ABLE TO CAPTURE A PORTION OF THE SEWER AND RETURN IT TO THE SYSTEM.	Y	THE DRAINAGE CONVEYANCE SYSTEM TRANSPORTED THE SPILL WAS AN 18  RCP PIPE THAT FEEDS INTO A 63  RCP PIPE.	295				295	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)	N/A	THE SPILL EXITED AN 8  CLEAN-OUT LOCATED SOUTHEAST OF 2440 AZURE COAST DR (11D, 11E) THEN THE SPILL ENTERED THE STORM DRAIN INLET 143' NORTHWEST (11F, 11G) WHERE IT ENTERED AND TRAVELED DOWN THROUGH FROM18  RCP TO A 63  RCP CONCRETE PIPE WHERE CREWS CAPTURE SEWER FROM STORM DRAIN 1330' WEST (11H  11I). 20 gallons of the spill dried in the curb gutter and street.	Y	32.84961	-117.25005	32.84975	-117.25031	32.85155	-117.25405			04/12/2025 12:30	THE SPILL VOLUME ESTIMATIONS WERE CALCULATED USING THE FLOW AND DURATION METHOD.	THE SPILL START TIME WAS WHEN THE CONSUMER OBSERVED AND NOTIFIED DISPATCH OF THE SPILL. THE END TIME WAS WHEN THE CREW RELIEVED THE BLOCKAGE AND VISUALLY SEEN THE SPILL HAD STOPPED.	Fats, Oil and Grease (FOG)	N/A	Gravity Mainline		Vitrified Clay	N/A	21	THE IMPACTS OF THE SPILL WERE TO THE STREET, CURB GUTTER, AND THE STORM DRAINS.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	CREWS IMMEDIATELY CONTAINED THE SPILL FROM ENTERING THE STORM DRAIN, RELIEVED THE BLOCKAGE, INVESTIGATED, AND TRACKED DOWN THE FINAL DESTINATION OF THE SEWER. CREWS WASHED DOWN THE STREET, CURB & GUTTER AND STORM DRAIN, CAPTURED THE SPILL AND RETURNED THE SEWER TO THE SYSTEM AND CCTV MAINS. 	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV	N/A	Mailed out filers to Residents about FOG Change Frequency to 9 months		04/12/2025 12:30	CCTV FOOTAGE SHOWED THE GREASE FROM A CONSUMER LATERAL THAT CAUSED BLOCKAGE TO THE MAIN PIPE.		NONE.	04/12/2025 14:00														N/A	Change of frequency 	Yes 	N/A	N/A	N/A	Yes, see Doc 2440 Azure Coast	N/A	NONE.	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	900729	1.0	Work In Progress						Monthly Category 3 Spill	3079 North Passmore Drive	04/13/2025 09:18	04/13/2025 10:15	04/13/2025 09:18				The initial crew arrived at 10:15 AM. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Spill coming from a maintenance hole located at the 3100 block of Passmore Drive.	34.127364	-118.351894	Manhole			146	See attached	Y	Spill entered and contained at a City of Los Angeles owned catch basin located at Oakshire Drive and Adina Drive.	131				146	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	Spill captured and contained in a City of Los Angeles catch basin. 34.127749;-118.355296	Y	34.127749	-118.355296							04/13/2025 10:30	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.	SPILL FLOWRATE FROM MAINTNENACE HOLE  DIAMETER OF PICKHOLE OR OPENING 0.75 INCHES HEIGHT OF WATER OUT OF PICKHOLE/OPENING 1 INCHES FLOWRATE PER PICKOLE/OPENING (GPM) 2 GPM # OF PICKHOLES/OPENINGS 1 TOTAL FLOWRATE (GPM) 2 GPM DURATION OF SPILL (MINUTES) 72 MINUTES TOTAL FLOW (GALLONS) 146 GALLONS	Root Intrusion		Gravity Mainline		Vitrified Clay		99	It was estimated that approximately 146 gallons of sewage backed out of the sewer system as a result of the blockage, of that amount, 131 gallons of sewage entered a City of Los Angeles owned catch basin located at Oakshire Drive and Adina Drive. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system. 	N	Cleaned Up (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		On Sunday, April 13, 2025 at 9:18 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 3079 North Passmore Drive (TG 563-C7). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 10:30 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		On Sunday, April 13, 2025 at 9:18 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 3079 North Passmore Drive (TG 563-C7). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 10:30 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.  It was estimated that approximately 146 gallons of sewage backed out of the sewer system as a result of the blockage, of that amount, 131 gallons of sewage entered a City of Los Angeles owned catch basin located at Oakshire Drive and Adina Drive. The crew was able to establish containment and subsequently the entire back up amount was returned to the sewer system. 		04/13/2025 10:30	On Sunday, April 13, 2025 at 9:18 AM, the Clean Water Conveyance Division (CWCD) received a report of a maintenance hole overflowing at 3079 North Passmore Drive (TG 563-C7). A CWCD crew was immediately dispatched to the incident location and determined that the 8-inch main line sewer serving the referenced area had backed up due to a blockage. The crew removed the blockage, and the backup ceased at 10:30 AM. The cause of the blockage was attributed to root intrusion. All necessary clean-up was then performed.		None at this time	04/13/2025 10:30														None at this time			None at this time		None at this time			None at this time	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	900730	1.2	Certified	John J Hough	San Dist. Superintendent	14-APR-25	25-APR-25	25-APR-25	Category 1 Spill	358405	04/11/2025 08:44	04/11/2025 09:40	04/11/2025 04:00	04/11/2025 20:32	25-1856		See Attached Spill map with Photos.	38.5855	-121.4053	Lateral Clean Out (Private)			7400	See Attached Spill Map with Photos	Y	See Attached Spill map with Photos.	15	0	See Attached Spill Map with Photos	7382	7400	Drainage Conveyance System that discharges to surface water; Paved Surface; Surface Water		See attached Spill Map with Photos.	Y	38.586	-121.4047	38.586	-121.4047	38.5851	-121.4062	38.585	-121.4201	04/11/2025 16:20	See attached Spill Volume Estimation.	See attached Spill Volume Estimation.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		64	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System	Notified Sacramento County, Golden State Water Co., City of Sacramento Fairbairn Water Treatment Plant, Carmichael Water District, and Regional Water Quality Control Board.	See attached Description of Events	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	SacSewer will also reach out to the surrounding residents and provide FOG literature.	See Attached Description of Spill Event.	See Attached Description of Event.	04/12/2025 12:15	See Attached Description of Spill Event	N			Strong Ranch Slough	Slough		See attached Spill Map with Photos	No observed impacts to aquatic life	Other (specify below)	No observed impact.	N/A	0	N	N												
5S	5SSO10964	Active	Hammonton Gold Village CS	River Highlands CSD	900733	1.2	Ready to Certify			14-APR-25			Category 2 Spill	Gold Village Waste Water Treatment Plant	03/04/2025 07:25	03/03/2025 08:00	03/02/2025 08:00				On March 2nd at approximately 8am, the lift station for the Gold Village Waste Water Treatment plant malfunctioned with the discharge line of the lift station caused a spill of approximately 10,000 gallons to be released on the west side of the structure. Operators arrived onsite on March 3rd around 8:00 am and immediately began the work to mitigate the situation. The broken discharge line was repaired and enzymes were used in the area of the spill.	39.197741	-121.318	Pump Station			10000	The spill caused  small amount of waste to run down the side of the hill to the west of the lift station. I've attached photos of the lift station and the boundary of area of the spill.	N						10000	Building or Structure		pipe on the discharge line of the lift station at Gold Village broke. This caused some raw sewage to run down the side of the hill at the lift station. I would estimate around 10,000 gallons. The problem has been fixed as of Monday morning and enzymes have been used around the area that the spill occurred. Please see attached photos for the boundary area. Lift station located at 39.197741, -121.318000.	Y	39.197741	-121.318							03/03/2025 09:30	Volume estimation based on the volumetric flow rate of the lift station and the time between last known operation of the lift station and time of discovery.	The spill end time was known as the operators mitigated the situation. the spill start time was estimated base don the last known optimal operation of the area.	Pump Station Failure - Mechanical		Pump Station - Mechanical		Ductile Iron		5	A pipe on the discharge line of the lift station at Gold Village broke. This caused some raw sewage to run down the side of the hill at the lift station. I would estimate around 10,000 gallons. The problem was fixed on Monday morning and enzymes have been used around the area that the spill occurred. No measurable impact could be found.	N	Mitigated Effects of Spill (specify below)	 The problem was fixed on Monday morning and enzymes have been used around the area that the spill occurred. No measurable impact could be found.	 The problem was fixed on Monday morning and enzymes have been used around the area that the spill occurred. No measurable impact could be found.	Repaired Facilities or Replaced Defect		The broken pipe and connection at the lift station has been removed and repaired. The routine maintenance for this lift station will serve as the schedule moving forward.	The routine maintenance for this lift station will serve as the schedule moving forward.	03/03/2025 08:00	Operators arrived Monday, March 3rd, and located the broken line. The broken pipe and connection at the lift station has been removed and repaired. 	N												N													
5R	5SSO10845	Active	Red Bluff CS	Red Bluff City 	900738	1.1	Certified	Dusty Brown	Wastewater Collections Supervisor		14-APR-25	14-APR-25	Category 1 Spill	1237 aloha ct	04/09/2025 14:58	04/09/2025 15:05	04/09/2025 14:50	04/09/2025 15:20	25-1808		Gravity main plugged spilled out manhole.	40.1668	-122.2432	Manhole			2117	spill out of manhole down street to gutter pan	Y				18  storm drain into Reeds Creek	1867	250	Drainage Conveyance System that discharges to surface water; Paved Surface		spill came out of manhole down the street to a 18  storm drain that flows into Reeds Creek.	N									04/09/2025 15:10	Area and Depth measurements	Start time assumption from person calling in noticing the spill at that time. and end of spill was when spill stopped coming out of manhole.	Fats, Oil and Grease (FOG); Other (specify below)	kids toys.	Gravity Mainline; Siphon		Polyvinyl Chloride (PVC)		33	no impact	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System		when notified crews showed up at downstream manhole with flusher truck. sent flusher head up the line to dislodge the blockage. after flows were restored clean up activities took place. sucking up the water and washing the road and gutter pan.	Adjusted Schedule/Method of Preventive Maintenance		increased the line inspection, and increased the line cleaning. 	immediately 	04/09/2025 15:55	when flushing the line for the blockage. the operators noticed and caught numerous children's toys and FOG in the line.	N			Reeds Creek	Stream/Creek		Creek	none	Other (specify below)	none	Tehama County Enviromental Health.	0	N	N												
6B	6SSO11136	Active	City Of Lancaster CS	Lancaster City	900743	1.1	Certified	Benjamin Stewart	Public Works: Utility Services Supervisor		29-APR-25	29-APR-25	Monthly Category 3 Spill	Mi Ranchito, Sierra Hwy and Ave K	04/03/2025 16:32	04/03/2025 17:05	04/03/2025 16:32				Spill appeared at manhole 1937-0361, located in the #2 lane southbound Sierra Hwy. Spill appeared as a single manhole leaking from the pick hole. Pictures attached.	34.67432	-118.13291	Manhole	N/A	N/A	249	The spill originated at manhole 1937-0361 and ran into the curb & gutter. It flowed North toward Ave K, flowed West at the intersection and continued to flow in the curb & gutter to the containment point at 521 W Ave K. Pictures attached.	N						249	Paved Surface; Street/Curb and Gutter (2 3)	N/A	The spill was stopped in the curb & gutter near 521 W Ave K.	Y	34.67482	-118.13971							04/03/2025 17:07	Spill volume was calculated from the spill area dimensions. 	Spill area dimensions were measured in sections with a measuring wheel and tape measure. The dimensions were used to calculate the volume of each section of the spill. All sections were then added together for a total spill volume.	Fats, Oil and Grease (FOG)	N/A	Gravity Mainline	N/A	Vitrified Clay	N/A	38	Sewage in the curb & gutter.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System	N/A	Spill was contained with sandbags. The blockage was cleared using high pressure water jetting. The spill area was washed down with fresh water and sanitized using Vanguard. The sewage and clean up water was recovered with Vactor combination trucks and returned to the sanitary sewer system. See attachments.	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV	N/A	Sewer line segments were placed on an enhanced cleaning and CCTV inspection cycle. The nearby restaurant was placed on an enhanced inspection cycle.		04/03/2025 21:14	See attachment.		FOG inspection of nearby restaurant every 60 days for one calendar year.	04/03/2026 15:21														N/A	Sewer line segments will be cleaned and CCTV inspected on a more frequent basis.	The cleaning and CCTV inspection cycles have been adjusted to a more frequent basis.	N/A	Inspected via CCTV, no damage to system was detected. 	N/A	See attachment.	None	FOG inspection of nearby restaurant every 60 days for one calendar year.	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	900748	1.0	Work In Progress						Monthly Category 3 Spill	357390	03/20/2025 20:55	03/20/2025 21:22	03/20/2025 20:48				See Attached Spill map with Photos.	38.60092	-121.3328	Manhole			140	See Attached Spill Map with Photos	Y	See Attached Spill map with Photos.	137				140	Drainage Conveyance System; Street/Curb and Gutter (2 3)		See attached Spill Map with Photos.	Y	38.60089	-121.33283	38.59935	-121.33651					03/20/2025 21:40	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		59	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System			Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause																															
3	3SSO10265	Active	El Estero CS	Santa Barbara City PWD	900749	1.0	Work In Progress						Monthly Category 3 Spill	621 San Pascual St 	04/09/2025 23:00	04/09/2025 23:30	04/09/2025 17:30				On April 9, 2025, a sewer overflow (SSO) occurred inside Apartment Unit B, primarily discharging from the bathroom toilet and bathtub GPS coordinates.  Latitude: 34.41159 Longitude: -119.70452	34.41159	-119.70452	Inside Building or Structure; Other (specify below)	Inside Apartment Unit B (toilet/bathtub)		343	TBD	N						0	Building or Structure; Paved Surface; Unpaved Surface		TBD	N									04/09/2025 23:58	TBD	TBD	Fats, Oil and Grease (FOG)		Gravity Mainline		Acrylonitr. Butadiene Styrene (ABS); Other (specify below)	HDPE	104	TBD	N	Contained All or Portion of Spill; Other (specify below); Property Owner Notified; Restored Flow	Inspected sewer using CCTV to determine cause	TBD	Adjusted Schedule/Method of Preventive Maintenance; Enforcement action against Fats, Oil, and Grease (FOG) source; Other (specify below)	Install Smartcover Sensor	TBD		04/10/2025 04:00	TBD		TBD	05/01/2025 10:30														TBD	TBD	TBD	TBD	TBD	TBD	TBD	TBD	TBD	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	900758	1.2	Certified	John J Hough	San Dist. Superintendent	15-APR-25	29-APR-25	29-APR-25	Category 1 Spill	358499	04/14/2025 19:18	04/14/2025 19:47	04/14/2025 17:00				See Attached Spill map with Photos.	38.6026	-121.3961	Lower Lateral (Public)			125	See attached Spill Map.	Y	See Attached Spill Map with Photos	0	0	See Attached Spill map with Photos.	121	124	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See attached Spill Map with Photos.	Y	38.6026	-121.3961	38.6026	-121.3957	38.6023	-121.3954	38.5984	-121.3999	04/14/2025 19:47	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Root Intrusion		Lower Lateral		Vitrified Clay		55	See Attached Spill Map.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified Sacramento County Department of Water Resources	See Attached Description of Spill Event	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause		See Attached Description of Spill Event.	See Attached Description of Spill Event.	04/15/2025 21:15	See Attached Description of Spill Event	N			Strong Ranch Slough	Slough		See attached Spill Map with Photos.	No observed impacts to aquatic life	Other (specify below)	No observed impact.	N/A	0	N	N												
2	2SSO10183	Active	San Mateo CIty CS	San Mateo City	900117	2.3	Certified	Eric Morkve	Supervisor	04-MAR-25	16-APR-25	16-APR-25	Category 1 Spill	3905 Kingridge Drive	03/04/2025 10:30	03/04/2025 10:30	02/15/2025 10:30	03/04/2025 12:00	25-1107	18-APR-25	Overflowing manhole, material flowing into creek	40.5717	-80.075941	Manhole			613500	Extent of spill estimated at 648,00 gallons. Material flowing from manhole 553-11 downhill into creek	N				Direct connect to Laurel creek	613500	0	Surface Water		Overflow direct to Laurel creek, Marina lagoon then SF bay	Y	37.52584	-122.30984							03/04/2025 11:30	Visual, san diego method, per investigation overflow time was 409 hours at 25 gpm(see video)	video of overflow, 25 gpm by san diego method	Other (specify below)	roots grew between a pipe and manhole shelf creating a mass that plugged the line	Manhole		Vitrified Clay		40	Direct overflow to creek, cleanup around manhole, 70 degree slope on hillside and unable to clean solids	N	Cleaned Up (specify below); Restored Flow	dug up soil around manhole where able, removed and disposed	Located spill, cctv to determine cause, remove root mass to restore flow, unable to remove solids from hillside as slope is to steep to access	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	adding yearly inspection of manholes to deter/remove root growth	completed inspections of 6 manholes for condition, remainder of manholes to be completed within 30 days, photographs attached to inspection tasks yearly inspections of manholes added to inspections	added to CMMS for yearly inspections by 5/1/25	03/07/2025 15:30	CCTV to detemine blockage was growth in overflowing manhole	Y	initial inspections of manholes in kingridge easement, yearly inspections planned of manholes in easement	03/12/2025 09:24	unnamed waterway leading to laurel creek	Wash		wash to creek	none observed	Other (specify below)	no	City of San Mateo	0	N	Y	100 ft. upstream, 100 ft. downstream 	Ammonia, E-Coli, Enterococcus									initial inspections of manholes in kingridge easement, yearly inspections planned of manholes in easement	
2	2SSO10105	Active	Central Contra Costa Sd CS	Central Contra Costa Sanitary District	900768	1.2	Certified	Paul Seitz	Collection System Division Manager	16-APR-25	28-APR-25	28-APR-25	Category 1 Spill	50 Brookwood Rd Orinda	04/14/2025 09:27	04/14/2025 09:27	04/14/2025 09:00				The spill discharged from a private clean-out and a downstairs bathroom at the address.	37.87543	-122.18448	Inside Building or Structure; Lateral Clean Out (Private)			180	 If flowed across a paved surface into a DI, through the conveyance system, into a tributary of San Pablo Creek and finally into San Pablo Creek. 	Y	A DI was directly in front of the property where the spill originated from. The spill entered this DI and travelled across the street where it discharged into the creek.	0	0	The spill travelled to and into a DI, through the conveyance system, into a tributary of San Pablo Creek and finally into San Pablo Creek	159	21	Building or Structure; Drainage Conveyance System; Paved Surface; Surface Water		Spill exited property cleanout, travelled a short distance across a paved area to a drain inlet which flowed through a drainage conveyance system to a flowing creek. Spill also exited a shower pan drain and onto bathroom floor . All internal spill material was captured and returned to sanitary system.	Y	37.875432	-122.18448	37.875706	-122.184563	37.880757	-122.186965			04/14/2025 09:36	Spill volume was calculated using the area method for the internal portion of the spill and the duration and flow method was used for the outdoor portion of the spill.	No assumptions were made due to homeowner being aware of accurate start time and a crew was nearby for a rapid reponse.	Root Intrusion		Gravity Mainline		Vitrified Clay		76	The indoor portion of the spill was contained and cleaned immediately. The external portion of the spill entered a flowing creek which immediately diluted the spill and carried it away too quickly to allow for capture and return to our system.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		We returned flow to our system, cleaned up internal spill, cleaned up area around clean out.	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Other (specify below); Post Spill CCTV	recleaned sewer main with hydroflush truck.	Inspect with CCTV and increased cleaning frequency.	Restored flow, clean up.	04/23/2025 09:00	Post-spill CCTV found slight sag in the line so we had a hydroflush truck reclean.	N			San Pablo Creek	Stream/Creek		 stream/creek.	No impacts were noted. An independent Biologist was hired to do a post-spill inspection of all receiving waters and no additional clean up recommendations were suggested.	Other (specify below)	None 	N/A	0	N	N												
8	8SSO10620	Active	EVMWD Regional Plant CS	Elsinore Valley Municipal Water District	900770	1.2	Certified	Jesus Barron	Collections System Worker III	16-APR-25	21-APR-25	21-APR-25	Category 1 Spill	23016 Pheasant Dr 	04/15/2025 13:18	04/15/2025 13:48	04/11/2025 07:00			21-APR-25	Spill originated at forcemain pipe joint in street	33.67838	-117.25792	Force Main			160	Visual seepage of wastewater on asphalt 	Y	Curb and gutter 	0	0	see attached photos 	0	0	Drainage Conveyance System		Curb and gutter	Y	33.67858	-117.25785							04/15/2025 04:12	Spill volume was calculated by our lift station pump start and stop times. Spill was estimated to be .1gpm total run pump run time 26.6 hours in 5 days is 1596 total minutes equals 160 gallons.	Scada system was used to determine start and end time of spill	Pipe Structural Problem/Failure - Controls		Force Main		Polyvinyl Chloride (PVC)		31	Spill seeping onto asphalt going to curb and gutter	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below)		Contained sewage with Berm and vacuum truck, cleaned street with water and Lysol	Repaired Facilities or Replaced Defect		When arrived on-site Berm and GapVax was set up to capture sewage that was seeping out, called in emergency USA, began to break asphalt, exposed force main, identified leak at the bell and spigot. removed bell and spliced in a new piece of pipe. 	N/A	04/16/2025 09:00	Pipe joint failure	N			Canyon lake	Lake		Lake	None	Other (specify below)	Private lake	Canyon lake POA	0	N	N												
4	4SSO11423	Active	Long Beach Water Dept. CS (SSO program)	Long Beach City, Water Dept	900776	1.0	Work In Progress						Monthly Category 3 Spill	1850 Outer Traffic Cir, Long Beach CA.	04/12/2025 11:35	04/12/2025 12:28	04/12/2025 10:28				The spill originated from a damaged upper sewer lateral located on private property.	33.79074	-118.14314	Upper Lateral (Private)			172	The spill originated from a damaged sewer service lateral and discharged onto an unpaved construction site. It then flowed along the street�s curb and gutter into a Los Angeles County Flood Control District (LACFCD) storm drain catch basin, continuing through the storm drain pipe into a storm drain manhole. The response crew promptly implemented containment measures to prevent further spread of the spill.	Y	The spill affected the LACFCD storm drain catch basin. This catch basin is connected to a storm drain and a storm drain manhole.	87				172	Drainage Conveyance System; Street/Curb and Gutter (2 3); Unpaved Surface		The sewage exited the system through a damaged upper private lateral at 1850 Outer Traffic Circle and flowed down the street�s curb and gutter into a LACFCD storm drain catch basin. It then traveled approximately 923 feet through the storm drain pipe into a storm drain manhole. Sandbags were strategically placed along the curb and gutter to contain the spill. The storm drain catch basin and manhole successfully collected the discharged sewage. Ocean Blue responded by vacuuming and cleaning the construction site, street gutter, and the storm drain conveyance system.	Y	33.7912	-118.14319							04/12/2025 12:40	The spill volume was calculated using the formula: Length � Width � Depth � the conversion factor of 7.48 to convert the result to gallons.   The dimensions were Area 1 = 20 ft x 6 ft � 1/4 inch = 0.02083 ft x 7.48 = 17. 95, and Area 2= 14ft x 4ft x 2 inch = 0.16 ft x 7.48 = 67.02,  (Area 1)  + (Area 2)  = 85 gallons. In addition, Ocean Blue recovered 87 gallons from the conveyance system. ( 923ft x 3 = 0.25ft x 5/8  = 0.05ft x 7.48 = 87) bringing the total volume recovered to 172  gallons. 	The operator spoke with the construction site foreman, who stated that the spill was discovered at 10:30 AM, with the estimated start time recorded as two minutes prior to discovery. Initially, they believed the spill was from a fire sprinkler line, but upon realizing it was sewage, they promptly contacted LBU Dispatch.	Other (specify below)	Failed main line liner	Gravity Mainline		Vitrified Clay		84	Ocean Blue was contacted promptly to clean up and disinfect the area.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		1. Spill Containment: A sewage overflow resulted in a spill of approximately 172 gallons. Containment measures, such as deploying barriers were implemented to prevent the spill from spreading beyond the affected area. 2. Cleanup Efforts: Ocean Blue Environmental initiated the clean up operations for the spill on the  street and in the conveyance system. A pressure washer and a vacuum truck were used to clean up the 172 gallons of sewage.      	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Removed failed liner	A CCTV inspection revealed a failed liner in the pipe segment, prompting the removal of the liner to prevent future blockages. Additional corrective actions taken for the spill included immediate containment and cleanup efforts. Containment measures were quickly implemented to stop the spill from spreading beyond the affected area. Ocean Blue Environmental carried out the cleanup, utilizing a pressure washer and vacuum truck to remove 172 gallons of sewage from the street and the conveyance system.		04/12/2025 17:22	A post-CCTV inspection was conducted on April 12, 2025, to identify the cause of the mainline stoppage. The inspection revealed that a failed liner in the pipe segment was responsible for the blockage. To address the issue, the liner was removed, and the pipe segment was thoroughly hydro-jetted, restoring normal wastewater flow.		No ongoing investigation.	04/12/2025 14:48														The Long Beach Health Department was promptly notified of the incident.	We have a 2-year preventive Sewer Maintenance Program to ensure the long-term health and functionality of our sewer system.	The failed liner was removed. We will proceed with our preventive maintenance program for this pipe segment and ensure that the cleaning is completed according to the schedule.	There is no planned rehabilitation or replacement of this pipe segment.	CCTV inspections were conducted to identify the cause and exact location of the obstruction. After determining the cause and location of the failed liner, appropriate measures were taken to remove the liner and thoroughly clean the affected pipe segment.	None Planned.	No modifications have been made to the system or operating procedures.	We will continue following our spill response procedures on containment and clean-up efforts.	No ongoing investigation.	
8	8SSO10543	Active	Beaumont City CS	Beaumont City	900146	2.1	Certified	Jerome Moledor	Wastewater collections supervisor	06-MAR-25	17-APR-25	17-APR-25	Category 1 Spill	Behind 35197 Hogan Dr Beaumont CA 92223	03/03/2025 09:43	03/03/2025 10:00	03/02/2025 07:00	03/03/2025 12:16	25-1088	17-APR-25	Spill originated from a gravity sewer line that had been broken by a manhole that was pushed over by a failing ditch embankment. 	33.95966	-117.04627	Gravity Mainline			61200	The spill started at a nonflowing ditch behind 35197 Hogan Dr Beaumont CA 92223. It followed the ditch line to the suspected end point in the ditch behind the house near the intersection of Miller Pl and Demaret Dr.	Y	The drainage conveyance system is a ditch line between houses and a golf course. 	0	61200	There is no surface water in the area.	0	0	Drainage Conveyance System; Unpaved Surface		The spill went from the appearance point in a dry non-flowing ditch approximately 3000 feet South West to suspected spill end point. Please see attached maps.	Y	33.95959	-117.04624	33.95909	-117.05546					03/03/2025 17:08	Spill volume estimations were calculated by assessing the spill volume on site which was constantly changing with the diurnal flow. Estimations were made at the peak visual flow seen. The area serviced by this line only has approximately 250 residential houses.	Estimation of spill start time was gathered through investigation and determined that an internal email chain was going through the golf course facility the day before the city was notified. Start time was set before this email chain to provide time for the initial finding person to start the email. Spill end time was when on site bypass pumping alleviated the active spill.	Other (specify below)	Spill due to slope subsidence in the easement caused by inadequate maintenance of the slope by the slope owner. (Slope owned by others)	Gravity Mainline; Manhole		Polyvinyl Chloride (PVC)		21	The impact of the spill was kept within the confines of the ditch line. This ditch line has no public access.	Y	Other (specify below); Restored Flow	Set up bypass pumping and sprayed area with a diluted chlorine solution.	After notification and confirmation of the spill, the active spill area was deemed unsafe due to the undermining of the ditch sides (ditch is owned by others) and potential of the ditch sides falling. Subcontractors were immediately called to start excavating the area to make safe and prep a pad for a bypass set up. Once the bypass was up and functional and active overflow had stopped, the area was disinfected with a diluted chlorine solution.	Plan Rehabilitation or Replacement of Sewer		The city is in the process of redesigning and improving the area around the spill. The city has brought in engineers, both in-house and contracted for different ideas for the permanent repair. Until final evaluation and plans are submitted the line will continue to be bypassed and monitored numerous times daily by collections staff. There is an extra Standby bypass pump on site for the extra precaution. 	Currently the city's first major milestone is working with its engineering and consultants to develop a repair plan. The approval of these plans has to be done and coordination with adjacent landowners, including, but not limited to the Fairway Canyon Community Association and Morongo Band of Mission Indians. Upon the completion of this milestone further milestones will be developed.	03/05/2025 20:00	Spill due to slope subsidence in the easement caused by inadequate maintenance of the slope by the slope owner.	Y	The city is investigating the legal ownership and requirements for maintenance within the ditch line, both around the sewer line/manhole and beyond.	05/13/2025 16:30	NA	Other (specify below)	Ephemeral drainage channel 	NA	NA	Other (specify below)	There is no public access.	NA	0	N	Y	Water quality samples were collected at point of spill and downstream at suspected spill end area. There was no upstream sample taken as the ditch line was dry upstream. Please see map under attachments for sample locations.	Analyzed for total and fecal coliform.									The city is investigating the legal ownership and requirements for maintenance within the ditch line, both around the sewer line/manhole and beyond.	
3	3SSO11422	Active	Pebble Beach CSD CS	Pebble Beach Community Service District	900785	1.6	Certified	Nick Becker	General Manager		28-APR-25	28-APR-25	Monthly Category 3 Spill	1409 Riata Road	03/24/2025 11:18	03/24/2025 11:18	03/24/2025 11:18				PBCSD_CS_Gravity Mainline_P-1612	36.57687	-121.95067	Lateral Clean Out (Private)		There were two appearance points - both lateral clean outs on the driveway of 1409 Riata Rd. 	355	Approximately 1300 square foot area; from driveway cleanouts onto road and shoulder near 1409 Riata Rd and nearby Forest Lake Rd through drainage piping under Riata Rd. 	Y	Drainage conveyance system for stormwater to flow to a nearby forested area. 	260				290	Drainage Conveyance System; Paved Surface; Unpaved Surface		Asphalt on Riata Rd, grassy shoulder off Riata Rd, drainage ditch and conveyance system from Riata Rd to Forest Lake Rd.										03/24/2025 11:27	Used a measured area/volume calculation from measurements taken in the field (length, width and depth of affected areas) along with soil saturation calculations.	The spill start time was determined by maintenance staff, who were onsite when the spill occurred once the blockage of roots was removed. The end time was when water stopped coming out of the clean outs and normal flow was restored. 	Root Intrusion		Gravity Mainline		Vitrified Clay		60	Saturated ground in immediate area near appearance points. 	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Vacuum truck used to clean up standing water and saturated soil. Jetting truck used to remove debris from sewer main. 	Plan Rehabilitation or Replacement of Sewer; Post Spill CCTV		Staff televised the line the following day. Root tips were discovered in the pipe joint. Plans have been put in place to pipe patch the area.		03/24/2025 12:31	Maintenance staff discovered root intrusion while jetting gravity mainline P-1612 near 1409 Riata Rd. This root ball was the cause of the blockage, which caused previously blocked flow to surge through downstream gravity mainline P-1026 and out of two cleanouts located on the nearby driveway of 1409 Riata Rd. 		N/A	03/25/2025 12:00														N/A	Pipe patch in the associated area. 	N/A	Pipe patch in the associated area. 	Inspected gravity mainlines P-1026 and P-1612 via CCTV. Used this to determine the location for a pipe patch.	N/A	A work order for pipe patching was initiated on the same day as the CCTV was completed. 	N/A	N/A	
5S	5SSO10865	Active	Angels Camp CS	Angels City	900793	1.1	Certified	Dave Richard	City Water/Wastewater Engineer		17-APR-25	17-APR-25	Monthly Category 3 Spill	780 Dads Road	04/02/2025 08:45	04/02/2025 09:04	04/02/2025 08:30				Spill originated at manhole and stayed in grassy drainage swale off of Dads Road.	38.07876	-120.54795	Manhole			500	Extent of spill ended approximately 30 feet from surface water.	Y	Grassy drainage swale leading to surface water.	0				0	Drainage Conveyance System that discharges to surface water		Spill ceased 30 feet from surface water at end of drainage conveyance system.	N									04/02/2025 09:30	Visual estimate of spill - 30-ft by 100-ft area	Visual estimate of spill based on area it was contained in and depth. Spill overflow was approximately 1 hour from 8:30 to 9:30.	Fats, Oil and Grease (FOG); Root Intrusion		Manhole		Concrete		30	No impact to public, spill was contained and cleaned up within 30 minutes of operator arriving onsite.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Property Owner Notified; Restored Flow		HydroVac and rake/shovel spill. Disinfected spill area afterwards.	Added Sewer to Preventive Maintenance Program		Implementation of preventative maintenance program for sanitary sewer overflows.		04/02/2025 14:00	Spill was caused due to grease buildup and root intrusion in pipe upstream of manhole where spill occurred. Will consider flushing manhole and pipeline within 6 months.		None scheduled.	04/02/2025 18:00														Homeowner informed.	Periodic inspection and scheduled CCTV.	CCTV inspection scheduled within 6 months.	Will depend on results of CCTV inspection.	Will depend on results of CCTV inspection.	Scheduled in sewer replacement project in 2028-2030. 	Spill will be included in annual report.	Periodic inspection increased from bi-annual to bi-monthly.	None scheduled.	
9	9SSO10658	Active	San Diego City CS (Wastewater Collection System)	San Diego City Metropolitan Wastewater Dept (Public Utilities)	900826	1.0	Work In Progress						Monthly Category 3 Spill	NOT-40201234364-5867 BAJA DR.	04/17/2025 09:35	04/17/2025 10:39	04/17/2025 09:33				THE SPILL ORIGINATED FROM A 6  MAIN BREAK LOCATED IN A CANYON AREA SOUTH EAST OF 5867 BAJA DR.	32.76564	-117.07043	Gravity Mainline	N/A	N/A	102	THE SPILL EXITED FROM A MAIN BREAK PIPE, TRAVELING NORTH, ENTERING A 24  RCP CONCRETE STORM DRAIN. TRAVELED WESTBOUND INTO A 48  RCP WHERE THE CREW CAPTURED AND RETURNED SEWER SPILL INTO THE SYSTEM.  	Y	THE DRAINAGE CONVEYANCE SYSTEM TRANSPORTED THE SPILL, WHICH WAS A 24  RCP PIPE, AND FED IT INTO A 48  RCP PIPE.	90				90	Drainage Conveyance System; Unpaved Surface	N/A	THE SPILL EXITED THE 6 MAIN LOCATED NORTHEAST OF 5867 BAJA DR  ( 11D, 11E) THEN THE SPILL ENTERED 24  STORM DRAIN,(169' 47  11F-11G) THEN TRAVELED DOWN WESTBOUND INTO A 48  RCP STORM DRAIN ( 500' 55   11H- 11I) WHERE CREWS CAPTURED THE SEWER AND RETURNED BACK TO THE SYSTEM.	Y	32.76563	-117.07043	32.76593	-117.07043	32.76573	-117.07204			04/17/2025 19:30	THE SPILL VOLUME ESTIMATIONS WERE CALCULATED USING THE FLOW AND DURATION METHOD.	THE SPILL START TIME WAS WHEN THE CONSUMER OBSERVED AND NOTIFIED DISPATCH OF THE SPILL, AND THE END TIME WAS WHEN THE CREW VACUUMED UNTIL THE SPILL STOPPED.	Pipe Structural Problem/Failure - Controls	N/A	Gravity Mainline	N/A	Vitrified Clay	N/A	76	THE IMPACT OF THE SPILL WERE THE CANYON CREEK AND STORM DRAIN.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	N/A	THE CREWS RESPONDED, INVESTIGATED, CONTAINED, TRACK DOWN FINAL DESTINATION, CALLED CONSTRUCTION, CCTV, ENVIROMENT, WASHDOWN CANYON CREEK & STORM DRAIN RECOVERING SPILL FROM THE DOWN STREAM STORM DRAIN.	Inspected Sewer Using CCTV to Determine Cause	N/A	NOT AT THIS TIME		04/17/2025 19:30	CCTV DETERMINED THAT THE MAIN HAS A BREAK. CONSTRUCTION CREWS WILL MAKE THE NECESSARY REPAIRS. 		NONE.	04/17/2025 19:30														N/A	NOT AT THIS TIME	NOT AT THIS TIME	NOT AT THIS TIME	NOT AT THIS TIME	NOT AT THIS TIME	NOT AT THIS TIME	NOT AT THIS TIME	NONE.	
7	7SSO10538	Active	Salton City Oxid Basin CS	Salton Community Services Dist	900827	1.1	Ready to Certify						Monthly Category 3 Spill	Harbor Dr and Harding Ave.	04/17/2025 12:51	04/17/2025 13:10	04/17/2025 12:00				Due to blockage on the gravity line, sewage over flow from manhole causing spill on ground. 	33.28469	-115.97117	Manhole			75	spill reach approximately 250 ft west from manhole.  	N						0	Unpaved Surface		the sewage destination was approximate 250 ft east from start point 										04/17/2025 13:15	multiplied area times depth in feet to get volume. convert volume to gallon.	 Measured Volume	Debris-General		Manhole		Other (specify below)	clay	67	 	N	Restored Flow		affected area was disinfected with chlorine solution	Added Sewer to Preventive Maintenance Program		check once a week		04/17/2025 14:20	plastic bags and rags when released from line		cctv	04/21/2025 14:00														none	no	weekly	no	inspected	no		inspect weekly	cctv	
8	8SSO10582	Active	Jurupa Community Services Dist CS	Jurupa Community Services District	900841	1.1	Certified	Ricky Tejada	Utility Fied Supervisor		21-APR-25	21-APR-25	Category 2 Spill	River Rd Lift Station	04/20/2025 06:55	04/20/2025 08:18	04/20/2025 11:30	04/20/2025 10:10	25-2007		On April 20, 2025, at approximately 11:30 AM, Pump 2 at the River Road Lift Station (14688 River Rd., Eastvale, CA) experienced a mechanical failure due to a burst gasket. Our team received notification of the issue at 6:55 PM, and the situation was fully contained by 8:28 PM.  The total estimated discharge from the pump was approximately 136,800 gallons.  To assess the outcome, we mapped out and measured the affected areas where wastewater had accumulated. Based on those measurements and standard volume calculations, we estimate that 110,846.59 gallons were successfully recovered and returned to the sewer system.  The remaining 25,953.41 gallons were absorbed into the ground and not recoverable.   	33.9318	-117.60409	Pump Station			136800	Puddles of sewage on River Rd.	N						110846	Other (specify below); Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface	Empty Lot.	River Rd.	Y	33.9318	-117.60409							04/21/2025 15:42	Spill volumes were calculated using security cameras and SCADA trends for start and finish times.	On-site camera at the lift station and use of SCADA trends gave us a time frame and we were also able to see a decrease in gpm.	Pump Station Failure - Mechanical		Pump Station - Mechanical		Other (specify below)	Not a pipe failure. 	0	Impacted residents due to street closure.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Returned Portion of Spill to Sanitary Sewer System		Pump lock out, Street closure, Containment, and clean up with a Vac truck.	Other (specify below)	Reported to Asset Team for further investigation 	Asset team currently investigating	n/a at this time	04/21/2025 15:00	Mechanical seal failure.	N												N													
5S	5SSO10965	Active	Hangtown Creek CS	Placerville City	900842	1.3	Ready to Certify			21-APR-25			Category 1 Spill	670 Placerville Dr. 	04/17/2025 09:30	04/17/2025 09:50	04/16/2025 09:30	04/17/2025 13:20	25-1962		Elevated manhole on the creek edge that is approx. 7' tall, The lid was dislodged and it was spilling directly into the creek. That was the only appearance point,	38.73131	-120.82178	Manhole		none	80000	spill had  dislodged the manhole cover at manhole #22-29 next to the creek. the spill was going directly in to the creek and was being swept away down stream  the water cleared up approximately 1,400 ' down creek. 	N	NA			spill was leaving the sewer Via dislodged manhole cover and running directly into the creek.	80000	25	Surface Water		due to creek flows unable to know he exact existent but the creek cleared up approximately 1,400' down the stream, 	Y	38.731208	120.821802	38.7325	-120.82594					04/17/2025 11:12	 Based on data acquired from the SCADA system, we observed that the wastewater received at the WWRF was between 60,000 and 100,000 gallons less than the average daily flows recorded over the two days prior and the day following the incident. Using this data, we estimate that approximately 80,000 gallons of sewage were discharged into the creek.	City was notified of the spill at approximately 9:30AM. city crew responded immediately and worked to stop the release It was fully contained and stopped at 11:12 am, However base on ta review of SCADA system data from the WWRF change in Flow rate were observed starting at around 9:30PM the previous evening. as a result the precise starting time of the spill remains undetermined but may have occurred hours before the city was notified.	Damage by Others Not Related to Collection System Construction/Maintenance; Vandalism (specify below)	Someone placed a 4x10x22 chunk of wood in the sewer system that became lodged in the manhole blocking the outflow almost completely causing the manhole to spill over.	Manhole		Polyvinyl Chloride (PVC)		30	the spill originated from a raised manhole allowing sewage to flow directly into the active watercourse of Hangtown creek.  Upon notification staff contacted at the WWRF reported little to nothing in observed change in turbidity at the plant monitoring station location . Field crews assessed the down stream impact and observed that water clarity returned to normal approximately 1,400' down from spill site, there was no observed impact on aquatic life.	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		due to the elevated position of the manhole immediate mitigation of the spills affects was not possible. Clearing the blockage was prioritized to prevent further discharge into creek. Clean up effort around the manhole and creek bed began immediately thereafter, utilizing the Vactor truck, 5 gallon bucket and rakes to remove debris and restore area.	Other (specify below)	Checked other manholes in the area to insure there was no more vandalism, 	Looking into bolt down/secure manhole covers to improve security. 	None yet	04/17/2025 10:49	Investigation  determined that the spill was caused by a chunk of wood being placed into the sewer system. unknown how long wood was in the system but due to staining could have been a while.	N			Hang Town Creek	Stream/Creek		The impacted water body is a natural creek has a defined channel with a gravel and rock bed, and is bordered by moderate vegetation and riparian growth. At the time of the incident, the water was flowing steadily, indicating an active watercourse capable of transporting discharged material downstream. 	No adverse impacts to aquatic life were observed during or following the incident. There were no signs of fish mortality or distress noted in the affected section of Hangtown Creek at the time of inspection.  	Other (specify below)	Notified down stream agencies.	na	0	N	Y	rsw-001 sampled at manhole that overflowed, rsw-001U sampled 50' upstream from the site  rsw-001D  sampled 2.37 miles down stream from the spill site. Rising Hill road cross street cold springs Rd  at bridge.	Total Coliform, E-coli, Ammonia,										
7	7SSO10509	Active	Blythe CS	Blythe City	900851	1.1	Ready to Certify						Monthly Category 3 Spill	14TH AVE AND GATEWAY BLYHTE CA	04/16/2025 06:45	04/16/2025 07:00	04/16/2025 06:30				GPS COORDINATES: lat-33.60336 Long-114.58611	33.60336	-114.58611	Manhole			50	no photographs needed	N						40	Unpaved Surface		isolated in a small low area										04/16/2025 06:32	80 sq ft	8ft x 10 ft	Debris-General		Manhole		Polyvinyl Chloride (PVC)		50	spill next to roadway in lower area	N	Restored Flow	evac the remaining liquid	shut off sewer lift affecting area. controlled traffic away and set traffic control to set up vac truck to remove blockage. removed blockage and evacuated standing water.	Added Sewer to Preventive Maintenance Program		to flush with extra water once a month to keep solids from setting		04/16/2025 08:00	blockage was discovered by public works dept.		none needed	04/16/2025 08:00														report spill	cycle sewer lift to run shorter	none	none	none to repair or replace	none needed	no modifications needed	none needed	none needed	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	900861	1.0	Work In Progress						Monthly Category 3 Spill	357123	03/15/2025 11:57	03/15/2025 12:50	03/15/2025 11:30				See Attached Spill map with Photos.	38.57126	-121.38801	Manhole			571	See Attached Spill Map with Photos	Y	See Attached Spill map with Photos.	304				562	Drainage Conveyance System; Other (specify below); Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface	3  Landscape drain that runs to the front of the house to the gutter.	See attached Spill Map with Photos.	Y	38.57065	-121.38828	38.56784	-121.39192					03/15/2025 13:55	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Debris-General		Gravity Mainline		Vitrified Clay		75	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System			Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause																															
4	4SSO10421	Active	Redondo Beach City CS	Redondo Beach City	900862	1.1	Certified	Geraldine Trivedi	Civil Engineer		22-APR-25	22-APR-25	Monthly Category 3 Spill	Knob Hill & Pacific Coast Highway, Redondo Beach	03/16/2025 14:07	03/16/2025 14:46	03/16/2025 14:07				The spill originated in a sewer main line under the street.  The spill seeped through the street asphalt onto the street.	33.828819	-118.385529	Other (specify below)	Seeping through the street asphalt		356	See photos in the attachment.	Y	The spill entered the storm drain through a catch basin.	356				356	Drainage Conveyance System; Paved Surface; Street/Curb and Gutter (2 3)		See attached documents with photos and a map of SSO event.	N									03/16/2025 16:24	Spill volume was estimated using standard CWEA guidance documents - refer to chart C calculations and equations.	Field data and spill calculations were made by trained City staff.	Damage by Others Not Related to Collection System Construction/Maintenance		Gravity Mainline		Vitrified Clay		90	The impact of the spill was discharge into stormdrain and on street.  100% of spill volume was recovered.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Cleared blockage from the sewer system, flushed street and stormdrain system, recovered 100% of the spill, and returned all to the sanitary sewer system. 	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		City staff is investigating the damage caused by others that caused the spill. We have CCTVed the main line and determined that the intrusion is a pipe crossing inside the sanitary sewer main line. Utility companies have been contacted to try to identify the responsible party. The intrusion will be removed. 		03/16/2025 17:58	City staff is investigating the damage caused by others that caused the spill. We have CCTVed the main line and determined that the intrusion is a pipe crossing inside the sanitary sewer main line. Utility companies have been contacted to try to identify the responsible party. The intrusion will be removed. 		City staff is investigating the damage caused by others that caused the spill. We have CCTVed the main line and determined that the intrusion is a pipe crossing inside the sanitary sewer main line. Utility companies have been contacted to try to identify the responsible party. The intrusion will be removed. 	06/30/2025 15:02														None	None	None	City staff is investigating the damage caused by others that caused the spill. We have CCTVed the main line and determined that the intrusion is a pipe crossing inside the sanitary sewer main line. Utility companies have been contacted to try to identify the responsible party. The intrusion will be removed. 	City staff is investigating the damage caused by others that caused the spill. We have CCTVed the main line and determined that the intrusion is a pipe crossing inside the sanitary sewer main line. Utility companies have been contacted to try to identify the responsible party. The intrusion will be removed. 	City staff is investigating the damage caused by others that caused the spill. We have CCTVed the main line and determined that the intrusion is a pipe crossing inside the sanitary sewer main line. Utility companies have been contacted to try to identify the responsible party. The intrusion will be removed. 	City staff have cleaned the sanitary sewer main line and are monitoring the location closely until the intrusion can be removed.	none	City staff is investigating the damage caused by others that caused the spill. We have CCTVed the main line and determined that the intrusion is a pipe crossing inside the sanitary sewer main line. Utility companies have been contacted to try to identify the responsible party. The intrusion will be removed. 	
4	4SSO10389	Active	Glendora City CS	Glendora City	900864	1.1	Draft Submitted			22-APR-25			Category 1 Spill	2341 - 112 N. Glendora Avenue, Glendora, CA	04/19/2025 17:12	04/19/2025 18:50	04/19/2025 16:30	04/19/2025 19:18	25-1997		CSMD Map Sheet No. 2341 MMS No. 9305356 Toilets overflowed inside the residence at 112 Glendora Avenue.	34.13647	-117.86539	Inside Building or Structure; Other (specify below)	Toilets at 112 Glendora Avenue.		200	Sewage backed up into the resident restrooms at 112 N Glendora Avenue and spilled onto the alley walkway, reaching all the way to the catch basin.	Y	Sewage backed up into the resident restrooms at 112 N Glendora Avenue and spilled onto the alley walkway, reaching all the way to the catch basin at 118 N Glendora Avenue. 	100	100	Sewage backed up into the resident restrooms at 112 N Glendora Avenue and spilled onto the alley walkway, reaching all the way to the catch basin at 118 N Glendora Avenue. A portion of the sewage spill entered the catch basin and flowed into the storm drain, which leads to Little Dalton Wash, then to Big Dalton Wash, Walnut Creek, and eventually the San Gabriel River. 	100	100	Building or Structure; Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Sewage backed up into the resident restrooms at 112 N Glendora Avenue and spilled onto the alley walkway, reaching all the way to the catch basin at 118 N Glendora Avenue. A portion of the sewage spill entered the catch basin and flowed into the storm drain, which leads to Little Dalton Wash, then to Big Dalton Wash, Walnut Creek, and eventually the San Gabriel River. 	Y	34.13657	-117.86512							04/19/2025 19:05	CWEA SSCSC Manhole Gauge	The start time is obtained from the reporting party, and the end time is when the crew clears the obstruction, and the overflow stops.	Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		15	Sewage backed up into the resident restrooms at 112 N Glendora Avenue and spilled onto the alley walkway, reaching all the way to the catch basin at 118 N Glendora Avenue. A portion of the sewage spill entered the catch basin and flowed into the storm drain, which leads to Little Dalton Wash, then to Big Dalton Wash, Walnut Creek, and eventually the San Gabriel River. 	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		Flood-Out from toilets: Upon arrival to 112 N. Glendora Ave, found mainlines up but not overflowing, sewage was coming from the toilets at 112 N. Glendora Ave, spilling out into the alley and walkway down to the catch basin at 118 N. Glendora Ave.   Set up Vactor Truck and vacuumed up the sewage. Jetted mainlines 2341 Foothill Boulevard, Manholes 276-275, broke down grease stoppage. Washed down and vacuumed entire area into the Vactor Truck. Notified complainant and all Agencies involved. 	Other (specify below)	The mainline will be televised.	The mainline was televised, found no grease, only signs of heavy roots.	60-Day Rodder Periodic. 	04/19/2025 15:56	Heavy root blockage.	N		06/19/2025 15:57	San Gabriel Basin	River		San Gabriel Basin, and filtered surface water from the Metropolitan Water District of Southern California (MWD) and Covina Irrigating Company (CIC).	No Impact.	Other (specify below)	No Impact.	N/A	0	N	N												
9	9SSO10655	Active	City of National City CS	National City	900868	1.2	Certified	Martha Juarez	Assistant Director of Engineering & Public Works		22-APR-25	22-APR-25	Monthly Category 3 Spill	517 Mile of Cars Way	03/18/2025 09:03	03/18/2025 07:45	03/18/2025 09:03				Manhole located on west side of I-5 on-ramp about 320 feet north of Mile of Cars Way.  Coordinates 32.661137, -117.1081209	32.661137	-117.1081209	Manhole			200	Sewage exited manhole and traveled south about 320 feet reaching a storm drain inlet.  Sewage entered the storm drain conveyance system but was fully recovered and did not extend further.	Y	Storm drain inlet located about 320 feet south of manhole.  Storm drain inlet leads to 	200				200	Drainage Conveyance System		Spill reached storm drain inlet located about 320 feet south of manhole, at entrance of I-5 on-ramp from Mile of Cars Way.  Coordinates: 32.66025, -117.10775	Y	32.66025	-117.10775							03/18/2025 09:23	Flow duration method was used.  Duration of 20 minutes, multiplied by a flow rate of 10 gpm, resulting in 200 gal.	Visual/situational evidence was used	Root Intrusion		Gravity Mainline		Vitrified Clay		50	Impact was considered minimal since spill did not extend past the storm drain conveyance system it entered, was fully recovered, and there were no impacts to any water bodies.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System	Used hand rods to break stoppage	Crew was already on-site doing scheduled root control and as soon as manhole began to overflow, hand rods were used to break stoppage.  Crew was unsuccessful with hand rods and instead, vactor truck was set up and hose was fed into the upstream manhole.  Stoppage was successfully broken 20 minutes later.	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	Request National City Adult School to have trees removed	Request National City Adult School to have trees removed		03/18/2025 16:00	During the crew's attempt to break the stoppage, the main was jetted a couple of times, and roots were retrieved.  At that point, cause of spill was identified and confirmed.		N/A	03/18/2025 16:00														N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	900870	1.1	Draft Submitted			22-APR-25			Category 1 Spill	358626	04/17/2025 08:47	04/17/2025 10:01	04/14/2025 08:00				See Attached Spill map with Photos.	38.4843	-121.4579	Lateral Clean Out (Private); Lateral Clean Out (Public)	Private CO and SacSewer CO		137	See Attached Spill Map with Photos	Y	See Attached Spill map with Photos.	43	0	See Attached Spill map with Photos.	78	56	Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Surface Water; Unpaved Surface		See attached Spill Map with Photos.	Y	38.4843	-121.4579	38.4841	-121.458	38.4815	-121.4592			04/17/2025 10:01	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Debris-General		Lower Lateral		Acrylonitr. Butadiene Styrene (ABS); Vitrified Clay		54	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Property Owner Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified the City of Sacramento	See Attached Description of Spill Event	Adjusted Schedule/Method of Preventive Maintenance; Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer		SacSewer inspected the lower lateral with CCTV on April 17, 2025. Based on the findings, SacSewer will adjust the preventative maintenance schedule from a 48-month frequency to a 12-month frequency and will replace the tee-style mainline tap with a wye-style tap.	SacSewer adjusted the preventative maintenance schedule on April 18, 2025.	04/17/2025 20:55	See Attached Description of Spill Event	N			Morrison Creek	Stream/Creek		Earthen creek with moderate flows.	No observed impacts to aquatic life	Other (specify below)	No public access impacts.	N/A	0	N	N												
3	3SSO10330	Active	Santa Ynez C.S.D. CS	Santa Ynez CSD	900891	1.2	Ready to Certify						Monthly Category 3 Spill	3568 pine st 	04/22/2025 20:16	04/22/2025 20:30	04/22/2025 18:00				Single spill out of private lateral caused by blockage in sewer main. 	34.61549	-120.08126	Lateral Clean Out (Private); Lower Lateral (Private)			122	water traveled down side of home to back yard and settled 	N						0	Unpaved Surface		spill destination was a private yard consisting of dirt and rock  	Y	34.61544	-120.0813							04/22/2025 21:10	surface area measurements 	home owner noticed water and a smell approximately at 6:00PM. spill ended at 9:10PM upon visual observation.  	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		46	no impact 	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow		cleared blockage and Restored flow with hydro Jetter. cleaned up all debris on private property and disinfected spill area per property owners request. followed up next morning to insure all debris was removed.  	Adjusted Schedule/Method of Preventive Maintenance		will be put on a bi annual maintenance schedule effective immediately     		04/23/2025 10:33	 FOG and root intrusion observed during cleaning process.  		Pipe will be added to CCTV inspection schedule 	04/23/2025 11:09														NA	modification of cleaning schedule  	bi annual 	NA	NA	NA	Work order system was modified.	NA 	Pipe will be added to CCTV inspection schedule 	
3	3SSO10330	Historical	Santa Ynez C.S.D. CS	Santa Ynez CSD	900891	1.2	Ready to Certify						Monthly Category 3 Spill	3568 pine st 	04/22/2025 20:16	04/22/2025 20:30	04/22/2025 18:00				Single spill out of private lateral caused by blockage in sewer main. 	34.61549	-120.08126	Lateral Clean Out (Private); Lower Lateral (Private)			122	water traveled down side of home to back yard and settled 	N						0	Unpaved Surface		spill destination was a private yard consisting of dirt and rock  	Y	34.61544	-120.0813							04/22/2025 21:10	surface area measurements 	home owner noticed water and a smell approximately at 6:00PM. spill ended at 9:10PM upon visual observation.  	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		46	no impact 	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow		cleared blockage and Restored flow with hydro Jetter. cleaned up all debris on private property and disinfected spill area per property owners request. followed up next morning to insure all debris was removed.  	Adjusted Schedule/Method of Preventive Maintenance		will be put on a bi annual maintenance schedule effective immediately     		04/23/2025 10:33	 FOG and root intrusion observed during cleaning process.  		Pipe will be added to CCTV inspection schedule 	04/23/2025 11:09														NA	modification of cleaning schedule  	bi annual 	NA	NA	NA	Work order system was modified.	NA 	Pipe will be added to CCTV inspection schedule 	
3	3SSO20011	Active	Santa Ynez C.S.D. CS	Santa Ynez CSD	900891	1.2	Ready to Certify						Monthly Category 3 Spill	3568 pine st 	04/22/2025 20:16	04/22/2025 20:30	04/22/2025 18:00				Single spill out of private lateral caused by blockage in sewer main. 	34.61549	-120.08126	Lateral Clean Out (Private); Lower Lateral (Private)			122	water traveled down side of home to back yard and settled 	N						0	Unpaved Surface		spill destination was a private yard consisting of dirt and rock  	Y	34.61544	-120.0813							04/22/2025 21:10	surface area measurements 	home owner noticed water and a smell approximately at 6:00PM. spill ended at 9:10PM upon visual observation.  	Fats, Oil and Grease (FOG); Root Intrusion		Gravity Mainline		Vitrified Clay		46	no impact 	N	Cleaned Up (specify below); Property Owner Notified; Restored Flow		cleared blockage and Restored flow with hydro Jetter. cleaned up all debris on private property and disinfected spill area per property owners request. followed up next morning to insure all debris was removed.  	Adjusted Schedule/Method of Preventive Maintenance		will be put on a bi annual maintenance schedule effective immediately     		04/23/2025 10:33	 FOG and root intrusion observed during cleaning process.  		Pipe will be added to CCTV inspection schedule 	04/23/2025 11:09														NA	modification of cleaning schedule  	bi annual 	NA	NA	NA	Work order system was modified.	NA 	Pipe will be added to CCTV inspection schedule 	
9	9SSO10674	Active	City of Oceanside Collection System, La Salina WWTP	Oceanside City	900916	1.1	Certified	Jeremy Kemp	Utility Supervisor		23-APR-25	23-APR-25	Monthly Category 3 Spill	Highway 78 (cross street El Camino Real)	04/23/2025 13:00	04/23/2025 13:00	04/23/2025 13:00				8in VCP pipe exposed and broken off the side of highway 78. Bottom of pipe missing... sewage spill just sitting in sink hole (traveling nowhere). 	33.1818105	-117.3274867	Gravity Mainline	Bottom of pipe missing - flow pooled up in sinkhole and then re-entering sewer system. 		100	You can see spill is just sitting in sinkhole (contained). Sewer line is still flowing. Scheduling emergency repairs. 	N						0	Other (specify below)	Contained in sinkhole / sewer system still flowing	The extent of the spill that is shown in the photo is the sinkhole with flow pooled up on both sides of the clay pipe.	N									04/23/2025 16:49	You can visually see the estimated 100 gallons just sitting in the sinkhole contained.	Roughly 4ft x 4ft x 10in deep = 99+ gallons	Other (specify below)	Found broken pipe (bottom third of pipe missing)	Gravity Mainline		Vitrified Clay		65	Spill is ongoing - scheduling emergency repairs. Spill contained in sinkhole very little impact.	N	Other (specify below)	Ongoing - scheduling repairs	Ongoing - scheduling repairs (spill contained in sinkhole)	Plan Rehabilitation or Replacement of Sewer		Scheduling emergency repairs		04/23/2025 16:49	Broken pipe - currently working on logistics for emergency repairs  		Working on repairs (sewer system still working)	04/23/2025 17:21														NA	NA	N/A	Replacing damaged pipe with new	Yes - televised line to learn extent of damage	Emergency repair	NA	Spill contained / scheduling emergency repairs	Working on repairs (sewer system still working)	
5S	5SSO10912	Active	Sacramento Area Sewer District CS	Sacramento Area Sewer District (merged)	900917	1.1	Draft Submitted			24-APR-25			Category 1 Spill	358762	04/21/2025 12:00	04/21/2025 12:00	04/19/2025 12:00	04/21/2025 14:52	25-2032		See Attached Spill map with Photos.	38.6699	-121.2922	Lateral Clean Out (Public)	See Attached Spill map with Photos.	See Attached Spill map with Photos.	2104	See Attached Spill map with Photos.	N		0	0	See Attached Spill map with Photos.	2096	2097	Surface Water; Unpaved Surface		See attached Spill Map with Photos.	Y	38.6699	-121.2922	38.6748	-121.3158					04/21/2025 12:33	See Attached Spill Volume estimation.	See Attached Spill Volume estimation.	Root Intrusion		Gravity Mainline		Vitrified Clay		3	No observed impact of spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Other (specify below); Restored Flow; Returned Portion of Spill to Sanitary Sewer System	Notified City of Citrus Heights and Sacramento County Environmental Management Department	See Attached Description of Spill Event	Inspected Sewer Using CCTV to Determine Cause; Other (specify below)	SacSewer inspected the main line with CCTV on April 25, 2025. Based on the findings, SacSewer plans to reinspect the main line in one year for preventative maintenance evaluation.	See Attached Description of Spill Event.		04/22/2025 04:35	See Attached Description of Spill Event	N			Brooktree Creek	Stream/Creek		Concrete lined creek with light flows	No observed impacts to aquatic life	Restricted Public Access		SacSewer	1	Y	N												
8	8SSO10583	Active	La Habra City CS	La Habra City	900918	1.1	Certified	Brian Jones	Utilities Manager		24-APR-25	24-APR-25	Category 1 Spill	561 S. Cypress	04/21/2025 09:00	04/21/2025 09:45	04/21/2025 08:50				Spill appeared from one pickhole at manhole E90006	33.92602	-117.94181	Manhole			500	Spill from one pickhole at manhole E90006.  Flowed west to curb and gutter and then north to catch basin.	Y	Coyote Creek Channel	0	500	From catch basin at 561 S. Cypress to Coyote Creek Channel, north of spill location	0	0	Drainage Conveyance System that discharges to surface water; Street/Curb and Gutter (2 3)		Spill appeared at manhole E90006 (561 S. Cypress Rd.). Flow went west to curb and gutter and then flowed north approximately 10 feet to storm drain catch basin.  	Y	33.92598	-117.9418							04/21/2025 10:30	Spill volume was estimated using a pick hole chart (5 gpm x spill duration of 140 minutes (0850 hours to 1030 hours)).	Spill start time was estimated to be 10 minutes prior to notification.  This is a heavily traffic commercial area.  Spill end time was noted as the time the blockage was relieved, and no flow stemmed from the manhole.	Debris-Rags		Gravity Mainline		Vitrified Clay		65	Spill flowed from manhole to curb and gutter and then approximately 10 feet to storm drain catch basin which flows to Coyote Creek Channel.	N	Cleaned Up (specify below); Other Enforcement Agency Notified; Restored Flow		Crew accessed downstream manhole and relieved blockage using a hydraulic jetter.  Street was cleaned with disinfectant.	Inspected Sewer Using CCTV to Determine Cause		Televised main and found no significant findings.  Accumulation of rags in sewer main were removed.	Revisit site in 3 months.	04/21/2025 14:15	Rags were found in the sewer main immediately north of manhole E90006.	N			San Gabriel River	River		Coyote Creek leads to San Gabriel RiverNA	none	Other (specify below)	none	NA	0	N	N												
5S	5SSO10895	Active	City Of Jackson CS	Jackson City	900920	1.4	Certified	Bree Wilder	PW superintendent 		28-APR-25	28-APR-25	Monthly Category 3 Spill	Anita St.	04/21/2025 07:48	04/21/2025 07:48	04/21/2025 07:10				Spill from one cleanout along East edge of Anita St in dirt shoulder.	38.34608	-120.77313	Lateral Clean Out (Public)			57	Spill area 22 ft long by 5.5 feet wide located along the East side of Anita Street in the dirt shoulder	N						283	Unpaved Surface		Spill area 22 ft long by 5.5 feet wide located along the East side of Anita Street in the dirt shoulder	Y	38.34608	-120.77313							04/21/2025 07:48	Start time estimated by witness interviews and time of discovery.  Local resident Grabriella Freitas (225 Anita St) drove past the spill location at approximately 07:10 am on 4/21/25 and recalled dry conditions and no spill. Additionally, resident Ken Williams (207 Anita St) noted no spill and dry conditions the previous evening at approximately 18:00 pm on 4/20/25.  I personally discovered the fresh discharge from the cleanout while driving on my morning route at 07:48 on 4/21/25.  Discharge flow had already ceased and was no longer spilling.  Volume estimated using Actual Water Use Averages for the specific Upstream Dwelling Units that contributed to the spill along with standard dwelling unit volume for the time frame stated. 	Volume estimated using Actual Water Use Averages for the specific Upstream Dwelling Units that contributed to the spill along with standard dwelling unit volume for the time frame stated. 	Pipe Structural Problem/Failure - Installation; Root Intrusion	Pipe offset and root within 6 feet downstream of cleanout	Gravity Mainline		Vitrified Clay		70	Toilet paper debris and fluids distributed in an area of 22 feet by 5.5 feet area in loose soil and vegetation	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below)		Crew arrived onsite at 08:01 on 4/21/25 to begin maintenance of pipe system at spill location and begin cleanup procedures.  4  clay pipe was rodded for 6 ft. at which point the offset prevented further cutting.  Root at the offset location was removed.  All toilet paper remnants as well as saturated soil was removed using shovels and placed in buckets for disposal offsite.  Disinfected surface area affected by spill.	Inspected Sewer Using CCTV to Determine Cause; Plan Rehabilitation or Replacement of Sewer; Post Spill CCTV		It is planned to replace approximately a 10 foot section of broken/offset clay pipe with new PVC SDR-35 and cleanout		04/21/2024 11:52	N/A		None	04/21/2024 12:00														N/A	Replacement of defective pipe sectional	None	Planned replacement of affected defective pipe only at this location.	Planned replacement of defective asset.	No	None	None	None	
2	2SSO10115	Active	South San Francisco City CS	South San Francisco City	900921	1.2	Certified	Dave Bockhaus	Deputy Director of Public Works		24-APR-25	24-APR-25	Monthly Category 3 Spill	541 Grand Ave	03/26/2025 18:13	03/26/2025 18:45	03/26/2025 16:16				Manhole wE1780 located in the road in front of 541 Grand Ave	37.65659	-122.41797	Gravity Mainline; Manhole			73	Spill came out of the manhole located in the road in front of 541 Grand Ave. and traveled on the asphalt into the curb and gutter line and travelled down the gutter line where it was recovered fully by the Vaccon in front of 575 Grand Ave. Due to the multiple cars parked and weeds in the gutter line the flow was very slow to travel.	N						73	Street/Curb and Gutter (2 3)		The destination of the spill was the curb and gutter in front of 575 Grand Ave where it was fully recovered by the Vaccon.	Y	37.657141	-122.419351							03/26/2025 18:58	Spill volume was calculated using the Area/Volume method by taking measurements of the Length, Width and Depth of the spill area as the spill area was completely on the surface. The flow was estimated using the Upstream Connections formula.	Spill start time was estimated by finding the flow rate, total gallons spilled and the end time. The end time was the time recorded at the time of the blockage cleared.	Debris-Rags; Root Intrusion		Gravity Mainline; Manhole		Vitrified Clay		100	After the spill cleanup was finished there was no impact from the spill.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Spill response activities included clearing of the blockage, mitigation of the spill using Spill Shark to keep the spill from entering the catch basin and wash down with water and a sanitizing solution of the affected area while being fully contained and collected into the Vaccon.	Post Spill CCTV		CCTV of sewer main to investigate the possible cause of the spill.		03/26/2025 18:58	Root intrusion and Rags found in sewer main.		N/A	04/15/2025 10:00														N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	
2	2SSO10175	Active	Sam CS	SEWER AUTHORITY MID-COASTSIDE	900931	1.4	Ready to Certify						Monthly Category 3 Spill	Etheldore & Highway 1	04/22/2025 15:49	04/22/2025 16:05	04/22/2025 11:00				37.5209451, -122.5063608	37.5209451	122.5063608	Force Main	Hole in the force main		551	Hole in force main	N						0	Unpaved Surface		There was a hole in the force main that created a hole in the ground and it contained itself. A little escaped the dirt hole, but most went back into the force main. 37-5209451, -122.5063608	Y	37.5209451	122.5063608							04/23/2025 09:00	SSO volume calculation on dirt using one gallon test for reference	I interviewed the caller isolated the system	Other (specify below)	The pipe failure due to age 	Force Main		Ductile Iron		50	Side of highway	N	Cleaned Up (specify below); Other (specify below); Restored Flow	Replaces segment	Segment was replaced and the Force main is in planning for replacement	Repaired Facilities or Replaced Defect		force main is in planning stage for replacement 		04/23/2025 13:33	Ductal pipe failed which caused spill		will walk the section of force main more frequently 	04/23/2025 13:33														n/a	in planning for replacement 	n/a	yes	yes	yes	n/a	replace failed section of pipe	will walk the section of force main more frequently 	
2	2SSO10177	Active	San Carlos City CS	San Carlos City	900935	1.0	Work In Progress						Monthly Category 3 Spill	984 McCue	03/20/2025 17:53	03/20/2025 19:02	03/20/2025 17:40				Spill originated at manhole AB/19 which is located in front of 984 McCue	37.5095703	-122.2580517	Manhole			245	Spill traveled 336ft to 948 McCue	N						245	Paved Surface; Street/Curb and Gutter (2 3)		Spill traveled in the street curb and gutter from 984 McCue to 948 McCue	Y	37.5102469	-122.2572209							03/20/2025 19:06	Street measurements were taken at the time of the spill and documented. The area volume method was used by calculating the area and converting the spill thickness into gallons.	Interviewed resident to determine the estimated spill start time. Spill end time determined by when blockage was opened with combo truck .	Debris-wipes/Non-disposables; Fats, Oil and Grease (FOG)		Gravity Mainline		Vitrified Clay		50	The spill was in the street curb and gutter. No other impact.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Combination truck was used for clean up and containment.	Adjusted Schedule/Method of Preventive Maintenance; Post Spill CCTV		CCTV taken and line cleaned 		03/20/2025 19:39	CCTV found grease to be the likely cause of the spill.		None	03/21/2025 15:30														N/A	Update cleaning schedule frequency	On a 6 month cleaning schedule	N/A	CCTV	N/A	N/A	N/A	None	
5S	5SSO10901	Active	City of Sacramento Utilities CS	Sacramento City	900939	1.2	Certified	Kevin Guerra	Superintendent		28-APR-25	28-APR-25	Monthly Category 3 Spill	1377 LAS LOMITAS CIR SACRAMENTO 95831	03/10/2025 18:21	03/10/2025 19:14	03/09/2025 10:00				The spill appearance point was a private cleanout located at the property line of this address.	38.49956	-121.50679	Lateral Clean Out (Private)			82	The spill appeared in the front yard of the reporting address, it made its way through the lawn area to the sidewalk, and then into the gutter pan. Once in the gutter pan the spill traveled in two directions do to the grading of concrete and eventually made it to a Drain inlet where it entered the conveyance system located 	Y	The conveyance system is gravity fed to a sump station that pumps into a water way.	82				82	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3); Unpaved Surface		The spill entered into the conveyance system that was dry at the time and was captured 3 18 inch segments downstream of the spill site 588 feet away.	Y	38.49974	-121.50677	38.50082	-121.50706					03/10/2025 20:11	The spill that was on the ground was measured and a volume calculator was used. The mains were tested and and at each manhole a depth was taken until a clean test was found. The depths were used along with the size and length of the mains in a volume calculator to the total trapped in the conveyance system. Bot of these totals were added together to get the estimation.	The reporting party had seen the water on a Sunday and waited until Monday morning to report it. Water crews responded and advised them to call a plumber. We used the time the water was first seen as the start time, and the time our responder unplugged the main as the end time.	Root Intrusion		Gravity Mainline		Vitrified Clay		65	The spill did not impact sewer service nor the environment.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Property Owner Notified; Restored Flow; Returned All Spill to Sanitary Sewer System		The operator upon arrival blocked the spill in the gutter pan stopping it from continuing to get into the drainage system. Crews were called with Jet/Vacuum equipment to set up downstream of the spill entrance point to collect the spill while the area was thoroughly cleaned and the system flushed,.	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		The main was immediately cleaned and rodded to remove the roots that caused the spill.		03/10/2025 21:12	The investigation showed that the main should have been rodded a year prior to the spill and Jet/Vac cleanings had been pushed out 12 months to a 2 year schedule. We have had issues with getting parts to repair and maintain our Rodders and this has created a back log of scheduled work. We have moved the Jet cleans back to 12 months this will give us time to get back on schedule with Rodding and eliminate the issue from reoccurring.		N/A	03/11/2025 09:23														N/A	N/A	The sewer main will have its cleaning schedule changed to 12 months from 24. This along with scheduled mechanical rodding that was late due to equipment issues will eliminate the issue.	N/A	N/A	N/A	N/A	N/A	N/A	
8	8SSO10620	Active	EVMWD Regional Plant CS	Elsinore Valley Municipal Water District	900948	1.1	Certified	Alex Ramirez	Collections worker lll		28-APR-25	28-APR-25	Monthly Category 3 Spill	Canyon lake causeway	04/23/2025 09:23	04/23/2025 09:00	01/23/2025 10:23				Spill came out of lowest elevation point due to lift station pump failures	33.68273	-117.26732	Manhole			150	SEE ATTACHEMENTS	N	N/A	0				150	Paved Surface; Street/Curb and Gutter (2 3)		Spill came out of manhole lowest elevation point due to lift station pump failures, before spilling out of manhole, our vacuum trucks and pumper trucks were ready to catch any wastewater.	Y	33.68278	-117.26727							04/23/2025 10:26	Estimations were made with cwea WDR compliance sewer spill overflow guide 	Time calculations were made by staff being onsite and ready for overflow and we were able to get pumps at lift stations going very rapidly and only overflowed for 3 minutes.	Pump Station Failure - Mechanical		Pump Station - Mechanical		Other (specify below)	no pipe failure or caused by blockage	0	No significant impact, photos attached 	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Returned All Spill to Sanitary Sewer System		We were able to mitigate spill extremely fast due to calling out extra staff when lift station was having pump issues and vacuum trucks were ready on standby for overflow.	Other (specify below)	Added new pump to lift station 	New pump was added to lift station		04/23/2025 10:42	Spill was caused by failure of pumps at lift station and caused collections system to backup and spill out of the lowest point in the system. 		none	01/30/2025 08:51														N/A	Extra pumps for pump failures 	N/A	N/A	N/A	N/A 	N/A	N/A	none	
5S	5SSO10865	Active	Angels Camp CS	Angels City	900949	1.0	Work In Progress						Monthly Category 3 Spill	273 Smith Flat Road	04/17/2025 10:15	04/17/2025 10:30	04/17/2025 10:00				Spill originated at manhole and was contained to front and side yard of property.	38.07002	-120.56296	Manhole			200	Extent of spill contained to front and side yard of property.	N						20	Unpaved Surface		Spill originated at manhole and extent of spill contained to unpaved vegetated surface in front and side yard of property.  										04/17/2025 10:45	Visual estimate of spill - 20-ft by 50-ft area.	Visual estimate of spill based on area it was contained in and depth of sewage. Spill overflow was approximately 45 minutes from 10:00am to 10:45am.	Root Intrusion		Manhole		Polyvinyl Chloride (PVC)		20	No impact to public, spill was contained and cleaned up within 15 minutes of operator arriving onsite.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Other Enforcement Agency Notified; Restored Flow; Returned Portion of Spill to Sanitary Sewer System		HydroVac and rake/shovel spill. Disinfected spill area afterwards.	Added Sewer to Preventive Maintenance Program		Implementation of preventative maintenance program for sanitary sewer overflows.		04/17/2025 18:32	Spill was caused due to root intrusion inside manhole. Flow was significantly impeded due to root buildup. Will consider flushing manhole and pipeline within 6 months.		None scheduled.	04/18/2025 09:17														Homeowner informed.	Periodic inspection and de-rooting of manhole monthly.	CCTV inspection scheduled within 6 months.	Will depend on results of CCTV inspection.	Will depend on results of CCTV inspection.	Will depend on results of CCTV inspection.	Spill will be included in annual report.	Periodic inspection increased from bi-annual to bi-monthly.	None scheduled.	
4	4SSO10450	Active	Hyperion CS	Los Angeles City Bureau of Sanitation	900960	1.0	Work In Progress						Monthly Category 3 Spill	7521 West Lolina Lane	04/25/2025 16:48	04/25/2025 17:11	04/25/2025 16:48				The initial crew arrived at 5:11P.M. and discovered an 8-inch mainline sewer serving the referenced area backed up to a blockage. The crew removed the blockage and the back up ceased. Then all necessary clean up was performed. As a part of our quality assurance program the sewer was inspected by Closed Circuit Television (CCTV) to determine the exact cause and the proper corrective actions to be taken.	34.124817	-118.36018	Manhole			102		N		0				102	Other (specify below)	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	The crew was able to establish containment and subsequently they returned the entire back up amount to the sewer system.	Y	34.124817	-118.36018							04/25/2025 17:28	The SSO volume was estimated utilizing a standardized template, which calculates the volume by using a standard orifice equation.		Root Intrusion		Gravity Mainline		Vitrified Clay		69		N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System			Adjusted Schedule/Method of Preventive Maintenance; Post Spill CCTV																															
4	4SSO10361	Active	Camrosa CS	Camrosa Water District	900968	1.0	Work In Progress						Monthly Category 3 Spill	Santa Rosa Road at Los Pueblos	04/26/2025 20:10	04/26/2025 21:00	04/26/2025 19:50				The spill was reported at 7:50 PM on 4/26/2025. Operator responded by 9:00 PM at the intersection of Santa Rosa Rd and Los Pueblos. 	34.22156	-119.00081	Manhole			225	The spill occurred just North of the intersection and was coming out of the pick hole at approximately 2-3 GPM. The spill boundaries 	N						225	Paved Surface		The sewage did not enter the storm drain. The operator was able to place an absorbent snake on front of the storm drain prior to any spill entering. 	N									04/26/2025 21:20	The spill was estimated by our operator. He saw the sewage spilling out of the pick hole of the manhole cover and estimated the flow was between 2-3 gpm. The spill duration was about 90 minutes.  used 2.5 gpm * 90 minutes = 225 gallons.	We used the reporting customer's estimation of when the spill started. The ending time was when the operator arrived and protected the storm drain with an absorbent snake.	Fats, Oil and Grease (FOG)		Manhole		Concrete		35	There was no major impact. The pavement was wet and was pressure washed. Nothing entered the storm drain.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow		Spill was contained with absorbent snakes and the area was pressure washed. 	Adjusted Schedule/Method of Preventive Maintenance; Post Spill CCTV		Line flushed out with Vactor truck. Line will be photographed to determine root cause. 		04/26/2025 21:20	TBD		Will camera line to see if anything else is needed to prevent reoccurrence. 	05/02/2025 16:00														None	Investigating with a camera to determine if modifications to sewer cleaning schedule is required.	TBD	None	None	None	None	None	Will camera line to see if anything else is needed to prevent reoccurrence. 	
9	9SSO10662	Active	County of San Diego CS	San Diego County Dept of Public Works	901000	1.0	Work In Progress						Monthly Category 3 Spill	10305 Campo Rd	04/27/2025 21:19	04/27/2025 22:55	04/27/2025 21:19				Spill appeared at a manhole, SVMH5049, located behind a shopping mall on Campo Rd. in Spring Valley, Ca.	32.74354	-116.97093	Manhole			426		Y	Concrete culvert and pipe	426				426	Drainage Conveyance System		Destination was the outfall of a concrete pipe that runs under Sweetwater Spring Blvd in Spring Valley Ca	Y	32.74353	-116.97096	32.74339	-116.97318								Root Intrusion		Gravity Mainline		Fiberglass	RPM	56	Minimal impact, spill was contained in a concrete storm drain, then vacuumed up by staff and returned to the sanitary sewer.	N	Cleaned Up (specify below); Contained All or Portion of Spill; Restored Flow; Returned All Spill to Sanitary Sewer System		Traced spill destination and set up vacuum truck at the farthest point. Washed down area of spill to include the storm drain, vacuumed spill and wash down water and returned it to the sewer system.	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV																															
2	2SSO11174	Active	San Jose State University CS	CSU San Jose	897764	1.0	Work In Progress						Category 1 Spill	San Jose State University CEFCU Spartan Stadium	11/16/2024 17:00	11/16/2024 17:00	11/16/2024 17:00	12/02/2024 08:49	24-6710		see attachment 	37.32001	-121.86979				3000	see attachment	Y				see attachment	3000																																																												
4	4SSO10416	Active	Pasadena City CS	Pasadena City	896288	1.1	Draft Submitted			30-AUG-24			Category 1 Spill	1133 Glen Oaks, Pasadena	08/21/2024 08:40	08/21/2024 08:55	08/21/2024 08:40				Manhole  1408 #148	34.15198	-118.17346	Manhole		None	150	Small amount of sew sipping out of Manhole cover 1408 -148.  Low flow line. 	N				None gotten into surface water.	0	150																																																											
1	1SSO10041	Active	Lake Shastina Csd CS	Lake Shastina CSD	899679	1.0	Work In Progress						Category 1 Spill	manhole at LAKE SHORE and INDIAN ISLAND	02/04/2025 06:55	02/04/2025 07:05	02/04/2025 06:30				From a manhole at 16438 Lake ShoreDrive	41.52	-122.3758	Manhole			600	From the manhole exiting the East side of the street and flowing 30' in the drainage 2' wide and sinking into the sand.	N				none	0	0																																																											
5F	5SSO11226	Active	Exeter CS	Exeter City	888982	1.0	Work In Progress						Category 2 Spill	555 W. Visalia Road 	05/27/2023 15:25	05/27/2023 15:40	05/27/2023 15:20	06/16/2023 10:20	23-3924		Manhole cover near 555 W. Visalia Rd. 	36.2975	-119.14941	Manhole			1210		Y																																																																	
3	3SSO10236	Active	California Men Colony CS	Ca Dept of Corrections San Luis Obispo	896795	1.1	Draft Submitted			03-MAR-25			Category 1 Spill	CMC, Wastewater Treatment Plant	09/24/2024 10:22	09/24/2024 07:00	09/24/2024 00:25	09/24/2024 13:54	24-5406		Photos attached. Origin GPS (35.3247675, -120.7525013)	35.32476	-120.7526	Other (specify below)	Old plant infrastructure		5000	Photos 604, 605 attached	Y	Storm drainage. Photos attached	4200	800	Storm drains	800	4200																																																											
4	4SSO10486	Active	Santa Paula CS	Santa Paula City	900414	1.1	Draft Submitted			23-MAR-25			Category 2 Spill	952 La Vuelta Place Santa Paula, California	03/21/2025 18:23	03/21/2025 19:20	03/21/2025 18:20				An accumulation of wipes on a root structure blocked the flow of the sanitary sewer, causing a backup and a discharge from a a man hole at 10th st and La Vuelta in Santa Paula. 	34.36147	-119.06458	Manhole		The wastewater traveled down 10th to Mill Street to Pleasant and then to 9th. 	2205	Please see attached photographs and map	N		2205	0			2205																																																											
9	9SSO10646	Active	City of Chula Vista CS	Chula Vista City	893578	1.0	Work In Progress						Monthly Category 3 Spill	671 First Av. Chula Vista CA 91910								32.63237	-117.06735				525																																																																			
9	9SSO10667	Active	Fallbrook PUD CS	Fallbrook Public Utility District	895124	1.0	Work In Progress						Category 1 Spill	1038 South Mission Rd.	06/02/2024 11:54	06/02/2024 12:27	06/02/2024 11:35		-			33.3731	117.2535	Manhole			960		Y		0				0																																																											
1	1SSO10041	Active	Lake Shastina Csd CS	Lake Shastina CSD	899691	1.0	Work In Progress						Category 1 Spill	manhole at LAKE SHORE and INDIAN ISLAND	02/04/2025 06:50	02/04/2025 07:05	02/04/2025 06:30				At at the manhole at the intersection of Lake Shore Road and Indian Island. see attachment	41.52	-122.3758	Manhole			600	see attachment	N				manhole	0	0																																																											
5S	5SSO10722	Active	City Of Auburn CS	Auburn City	895786	1.1	Draft Submitted			24-JUL-24			Category 1 Spill	Falcons Pont SSO	06/25/2024 11:02	06/25/2024 11:02	06/25/2024 11:02	06/25/2024 12:54	24-3616		Discharged at Falcons Point lift station duo to pump failure.	38.86973	-121.06873	Pump Station		Discharged at Falcons Point lift station duo to pump failure.	30	Discharged at Falcons Point lift station duo to pump failure.	Y	Discharged at Falcons Point lift station duo to pump failure.	0	30	Discharged at Falcons Point lift station duo to pump failure.	0	0																																																											
2	2SSO10179	Active	San Jose City CS	San Jose City	900744	1.0	Work In Progress						Monthly Category 3 Spill	Kestral Wy and Penitencia Creek Road San Jose CA 95133	04/02/2025 10:00	04/02/2025 10:46	04/02/2025 09:30				There were three spill appearance points:  a sani MH 1002099, a property cleanout, and a private manhole.  A picture of the spill appearance points are included in the Attachments Tab.	37.38201	-121.85758	Lateral Clean Out (Private); Manhole; Other (specify below)	cleanout and a private manhole	A private manhole	140	The spill discharged from the sanitary manhole 1002099, a property cleanout and a private manhole traveling along the curb/gutter reaching a nearby storm catch basin # 36507.  Upon crew arrival, crew set up Vaccon truck and cleared the plug stopping the overflow. The crew contained the spill on the surface using sandbags. During the response, the crew also found a dry storm manhole. The spill did not reach the waterway. Pictures and a map of the spill extent are included in the Attachments Tab.	Y	The spill reached a nearby storm inlet approximately 100 ft from the spill appearance point. This storm inlet # 36507 is connected to the City of San Jose's municipal separate storm sewer system. The sewage traveled within the storm system to a storm manhole #33563. From there crews found storm system manhole #33569 with no further outlet   Pictures of the storm drain conveyance system and a map of the spill path is included in the Attachments Tab.	125				140	Drainage Conveyance System; Drainage Conveyance System that discharges to surface water; Paved Surface; Street/Curb and Gutter (2 3)		A portion of the spill traveled along the street and curb/gutter from the manhole (spill appearance point). The manhole is identified in 11.d. and 11.e. The spill reached and traveled along the curb and gutter, then entered City's storm inlet and drainage system. The location of the storm drain inlet is identified in 11.f and 11.g. The crew was able to determine a spill end point in the storm drain conveyance system. Coordinates for the containment in the storm system manhole are identified in 11.h and 11.i.  The other two spill locations were contained within the nearby surrounding paved area.	Y	37.38201	-121.85758	37.382292818226	-121.8576739	37.3822097	-121.8596694			04/02/2025 11:25	The total spill volume was calculated using measurements from the responding crew.  On land, the crew recorded spill measurements along the curb/gutter and on the asphalt.  In addition, the crew recorded spill depths within the storm drain conveyance system pipes from the inlet to the last storm manhole # 33569	The reporting party first noticed the spill on 4/2/2025 at 10:00. Based on the reporting party's information, it was assumed that the SSO likely started sometime shortly before the reporting party saw the spill at 10:00 that day.  The start time of the SSO is assumed to have started around 09:30 on 04/02/2025	Other (specify below)	A construction plug left behind	Gravity Mainline				18		N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Restored Flow; Returned All Spill to Sanitary Sewer System		Upon arrival, the responding City crew immediately placed sandbags around the nearby storm drain inlet where the spill had entered. The crew tracked the spill in the storm drain conveyance system (MS4) which led them to a no outlet storm manhole. where all the sewage was contained. The crew cleared the blockage and observed a construction plug to be the cause of the SSO. Next, the crew began their cleanup efforts on the street and curb/gutter. Crew used two combo trucks, one flushed water upstream and other vacuumed the water at the downstream containment in the storm drain manhole. All of the spill and induced water was cleaned up from both the land and storm drain conveyance system. Pictures of the containment locations were added to the Attachments Tab.	Inspected Sewer Using CCTV to Determine Cause; Post Spill CCTV		The sewer was immediately CCTV'd following the overflow event in order to determine the cause. Further corrective actions the city has planned for this segment include: 1. Revideo in 12 months based on the observation adjust the cleaning cycle 		04/02/2025 15:15	While the Responding Crew cleared the blockage in the plugged sanitary mainline, the Crew documented their findings. A pipe basket was used to collect the construction plug that was removed while clearing the blockage within the mainline. After conducting a follow up CCTV of the sanitary mainline pipe, there was no major O&M observation or structural defects that may have contributed to the blockage.		All investigation efforts concluded on 4/15/2025	04/15/2025 15:30															Problem sanitary sewer asset was video inspected after the SSO on 04/02/20025. A consturction plug was found to be the cause of the SSO.   	NA	NA	Problem sanitary sewer asset was video inspected after the SSO on 04/02/20025. A consturction plug was found to be the cause of the SSO.	NA	NA	NA	All investigation efforts concluded on 4/15/2025	
9	9SSO10654	Active	City of Lemon Grove CS	Lemon Grove City	888632	1.0	Work In Progress						Monthly Category 3 Spill	2930 Main St	06/02/2023 09:05	06/02/2023 09:40	06/02/2023 06:20					32.73728	-117.03156	Lateral Clean Out (Private)			235																																																																			
4	4SSO10486	Active	Santa Paula CS	Santa Paula City	900838	1.1	Draft Submitted			21-APR-25			Category 1 Spill	125 E Harvard Bld	04/20/2025 12:40	04/20/2025 12:24	04/20/2025 12:15	04/20/2025 13:29	25-2004	21-APR-25	Raw sewage is flowing out of a manhole in a parking lot as well as up through some drains/ plumbing fixtures in several business in the area. The release rate is approximately (3) to (5) gallons per minute. A public works/utilities crew is in route. Santa Paula Police Department and Ventura County Fire Department are on scene. The affected parking lot area has been closed off and approximately 30 business have been evacuated or are sheltering in place. The occupants of most businesses appear to be sheltering in place, keeping away from the material release. Approximately 3 storm drains have material running into them. The storm drains lead into the Santa Clara River.	34.3469	-119.07151	Manhole		This private sewer lateral at 125 E Harvard Blvd was broken, the broken section of clay pipe had fallen into the stream of the lateral, over time it collected a large amount of grease eventually blocking the flow. The lateral backed up into businesses and eventually came out of the pipe at the curb line in front of the property spilling approximately 1958 gallons. Additionally the flow backed up and came out of a clean out behind the commercial property at 112 E Ventura St, this is where approximately 577 gallons spilled and made its way to a storm drain, the spill was contained within the storm drain and recovered with the Vactor truck.	2535	VRSD responded to the location and began by using the vacuum to pull water from the clean out in the 112 E Ventura St parking area this stopped the spill from persisting. Then set up vacuum at the point where the lot connects to the storm drain and removed the remaining water from the parking area. Then moving into the storm drain we setup at a down stream manhole on Palm to capture what had entered the drain. In conjunction with City of Santa Paula staff we determined the need to expose and repair the damaged lateral, we called in a contractor to make the repair. During the repair we used the Vactor truck to capture sewage that was leaving the pipe and staying in the excavation for the repair.	N		2535	2535	We setup at a down stream manhole on Palm to capture what had entered the drain. In conjunction with City of Santa Paula staff we determined the need to expose and repair the damaged lateral, we called in a contractor to make the repair. During the repair we used the Vactor truck to capture sewage that was leaving the pipe and staying in the excavation for the repair.	0	2535																																																											
5S	5SSO11055	Active	Southeast Regional Waste Disp Fac CS	Lake Cnty	901002	1.0	Work In Progress						Category 1 Spill	Big Canyon Road MP 4.0	04/29/2025 09:05	04/29/2025 09:30	04/29/2025 08:30	04/29/2025 11:00	25-2160		2  ARV service line damaged by Road Department grading the road	38.80288	-122.6146	Other Sewer System Structure	2  ARV service line	None	3000		Y	Big Canyon Creek along Big Canyon Road	2000	1000																																																														
5S	5SSO10000	Active	Demo South CS	State Water Resources Control Board	888752	1.0	Draft Submitted			12-JUN-23			Category 1 Spill	Vacaville	06/10/2023 11:42	06/10/2023 12:43	06/10/2023 11:43	06/10/2023 14:43	231000		gjgjgjkgj	38.32947	-121.97176	Force Main			2000	jgjgjkgk	N				gjhgjkgkgk	500	1500																																																											
4	4SSO18098	Active	Rancho Palos Verdes - Central CS	Rancho Palos Verdes City	890954	1.0	Work In Progress						Category 1 Spill	Ab Cove Palos Verdes Drive South 	10/20/2023 09:30	10/20/2023 09:30	10/20/2023 09:30	10/20/2023 12:00	-		The spill source was from a manhole approximately 7000 feet from Ab Cove lift station.	33.74311	-118.37888	Gravity Mainline; Manhole			2400	The spill source was from a manhole approximately 7000 feet from Ab Cove lift station.	Y				See attchement picture.	1600	800																																																											
2	2SSO10183	Active	San Mateo CIty CS	San Mateo City	894465	1.3	Draft Submitted			17-APR-24			Category 1 Spill	312 Clark	04/16/2024 11:12	04/16/2024 11:30	04/16/2024 07:00	04/16/2024 11:12	24-2263		plugged Sanitary mainline, volume estimate changed late afternoon after RP responded back with a different start time. Mainline overflowed out of 2 private cleanouts, it flowed above and below ground for approximately 6 blocks. 3 combo unit arrived over 45 minutes to relieve the blockage, set up downstream and vacuum and jet the storm system from clark dr to the vacuum truck	37.56822	-122.34629	Lateral Clean Out (Private)			7300	Curbline for 2 blocks, storm pipe for 6 blocks	Y	storm pipe	2000	5300	coyote point flood control pump station	5300	2000																																																											
8	8SSO10636	Active	Colton Water Reclamation Facility CS	Colton City	896298	1.2	Draft Submitted			03-SEP-24			Category 1 Spill	Via de la zanja ave. north of washington st.	08/31/2024 14:00	08/31/2024 14:50	08/31/2024 13:50				SSO was on via de la zanja ave. north of washington st.  (dead end street).	34.04689	-117.30205	Gravity Mainline; Manhole			100	SSO was discharged into a storm drain.	Y	Storm drain basin 	0	0	Santa Ana River	75	25																																																											
6B	6SSO18103	Active	Calico Ghost Town Regional Park CS	San Bernardino Cnty Special Districts	893652	1.0	Work In Progress						Category 2 Spill	A Section Campground	02/17/2024 17:00	02/17/2024 17:00	02/17/2024 17:00		-		Photos of spill area	34.94453	-116.86497	Gravity Mainline	Manhole in roadway.	N/A	2250	Spill from manhole in roadway approximately 100 ft. removed wipes and rocks from sewer line.	N	N/A	0	0			50																																																											
5F	5SSO11310	Active	Los Banos City CS	Los Banos Urban Area SW System	889337	1.0	Work In Progress						Category 2 Spill	Greenbriar & Park Sharon	07/03/2023 07:06	07/03/2023 07:20	07/03/2023 07:06				See Attachments 	37.0652812	120.8184944	Manhole		See Attachment	2250	See Attachment			2250	0			2250																																																											
2	2SSO10117	Active	Colma City CS	Colma Town 	899544	1.1	Draft Submitted			25-MAR-25			Category 1 Spill	7801 ElCamino real	12/14/2024 10:45	12/14/2024 11:49	12/14/2024 10:45	02/06/2025 13:57	24-7087		37.68306 -122.46319	37.68306	-122.46319	Manhole			2275	Base on the photos that we submitted we determined on the C-4B overflow chart.	Y	Base on the photos that we submitted we determined on the C-4B overflow chart.	850	1425	Base on the photos that we submitted we determined on the C-4B overflow chart	1425	850																																																											
5S	5SSO10906	Active	Clearlake Oaks Co Wtr Dis CS	Clearlake Oaks Cnty Water Dist	890827	1.1	Draft Submitted			17-OCT-23			Category 2 Spill	Elem Reservation around manhole	10/06/2023 09:10	10/06/2023 09:15	10/04/2023 04:00	10/10/2023 15:33	23-6440		pump failure resulted in leakage around manhole located in the middle of a filed	38.966375	-122.649906	Manhole	N/A	N/A	1200	No pictures were taken.  Spill was contained within a 10 foot circumference of the manhole	N						0																																																											
5S	5SSO20031	Active	Clearlake Oaks Co Wtr Dis CS	Clearlake Oaks Cnty Water Dist	890827	1.1	Draft Submitted			17-OCT-23			Category 2 Spill	Elem Reservation around manhole	10/06/2023 09:10	10/06/2023 09:15	10/04/2023 04:00	10/10/2023 15:33	23-6440		pump failure resulted in leakage around manhole located in the middle of a filed	38.966375	-122.649906	Manhole	N/A	N/A	1200	No pictures were taken.  Spill was contained within a 10 foot circumference of the manhole	N						0																																																											
9	9SSO10692	Active	San Diego State University CS	CSU San Diego	898682	1.0	Work In Progress						Category 1 Spill	SDSU Campus South Life Science Building Exterior	01/16/2025 08:15	01/15/2025 08:30	01/15/2025 08:30				Location of spill : 32.777374, -117.071716	32.777374	-117.071716	Inside Building or Structure			360		Y		45	0	Storm drain was located close to the building. Attached is a picture of the storm drain point of entry.	0	315	Other (specify below)															Root Intrusion		Other (specify below)							Contained All or Portion of Spill			Repaired Facilities or Replaced Defect									Alvarado Creek	Other (specify below)				Other (specify below)																	
1	1SSO10014	Active	Eureka City CS	Eureka City	898061	1.2	Draft Submitted			17-DEC-24			Category 1 Spill	Harris between Ocean and Prospect	12/15/2024 11:45	12/15/2024 12:20	12/15/2024 11:30	12/15/2024 14:30	24-6989		Original spill points from upper and lower laterals caused by construction debris	40.78047	-124.18005	Inside Building or Structure; Lateral Clean Out (Private); Lower Lateral (Private); Manhole			4500	Original spill from private laterals. As we cleared the first blockage it created another down stream at Harris and Nevada manhole. When that blockage was cleared, it created another at Harris and Oregon. Down to Ocean Avenue.	Y	Storm drain to Marsh.	0	0	One discharge point for storm drain west of Broadway and Henderson.	2000	2500																																																											
8	8SSO10545	Active	Brea City CS	Brea City	891976	1.0	Work In Progress						Category 1 Spill	df					-			33.90986	-117.88098																																																																							
4	4SSO10443	Active	Whittier City CS	Whittier City	891480	1.1	Draft Submitted			11-DEC-23			Category 1 Spill	15715 Whittier Blvd Whittier, CA 	12/07/2023 10:40	12/07/2023 10:50	12/07/2023 10:35		-		At MH 4501 at 15705 Whittier Blvd,  sewage was overflowing out of MH. Jetted from MH 4405 approximately 11 ft and broke stoppage. Approximately 100 gallons spilled into nearby storm drain. 	33.94441	-117.99338	Manhole			100	Spill came out of MH4501 and into nearby storm drain. 	Y	Storm Drain	0	100	SSCSC/CWEA MH Overflow Gauge (MH4501 5 GPM X 20 Min = 100 gal)	100	0																																																											
1	1SSO10041	Active	Lake Shastina Csd CS	Lake Shastina CSD	895931	1.0	Work In Progress						Category 1 Spill	manhole at LAKE SHORE and INDIAN ISLAND	08/05/2024 05:55	08/05/2024 06:21	08/05/2024 05:12				One appearance point.  From a manhole at the intersection of Lakeshore and Indian Island	41.51999	-122.37582	Manhole			500	Bubbling up threw the manhole 1  holes about 2  high	Y	3' off the road edge, shallow sandy or volcanic ash	0	0	N/A	0	0																																																											
8	8SSO10554	Active	Loma Linda City CS	Loma Linda City	896881	1.1	Draft Submitted			08-OCT-24			Category 2 Spill	University Ave. at Evans St.	09/21/2024 20:14	09/21/2024 21:14	09/21/2024 20:00	10/08/2024 15:13	24-5710		Intersection of University Ave. and Evans St.	34.05196	-117.26737	Manhole			2700	Approximately 2700 gallons of sewage came out through the pick hole.	N						0	Other (specify below)	Empty field.		Y	34.0567	-117.27081							09/21/2024 21:25																																														
2	2SSO11204	Active	Oakland City CS	Oakland City DPW	890180	1.0	Work In Progress						Category 1 Spill	4800 East 12th Street, Oakland Ca	09/01/2023 11:13	09/01/2023 12:20	09/01/2023 11:00	09/01/2023 13:26	23-5619			37.76879	-122.21163	Lateral Clean Out (Private); Manhole	Manhole in Street and Lateral Clean Out (Private) at Sidewalk area.		677	Manhole in Street and Lateral Clean Out (Private) at Sidewalk area flowing into Separate Storm System.	Y	Underground storm line named 54th Ave, Peralta, Courtland, and Seminary creeks that flows into East Creek Slough.	0	677	Underground separate storm line named 54th Ave, Peralta, Courtland, and Seminary creeks that flows into East Creek Slough.	677	0																																																											
5S	5SSO11022	Active	Penn Valley CS	Nevada CSD No 1	897424	1.2	Draft Submitted			11-NOV-24			Category 1 Spill	19117 lake forest dr penn valley california 95946	11/11/2024 17:13	11/11/2024 17:33	11/11/2024 17:13	11/11/2024 22:19	24-6359		6  sewer line blocked by grease and flushable wipes caused a back up in the line. 	39.22469	-121.20344	Gravity Mainline		 the backup also came out in the residence at 19117 lake forest dr	120	6  sewer line blocked by grease and flushable wipes caused a back up in the line. 	Y	the drainage system is a dry seasonal creek.  	120	0	no surface water	0	120																																																											
5F	5SSO11296	Active	Fresno Co 34-Millerton New Town CS	County of Fresno	894120	1.0	Work In Progress						Monthly Category 3 Spill	Corner of Marina Drive and Ruscello Lane	03/21/2024 07:20	03/21/2024 07:25	03/21/2024 07:10					36.97866	-119.66375	Manhole		Spilled into the storm water collection vault	120		N						120	Groundwater Infiltration Basin or Facility		The sewage came up through a manhole and spilled across the street into a lined stormwater collection vault.	Y	36.97855	-119.66378							03/21/2024 10:43	Central State Sanitation was called out to pump the sewage from the storm water collection vault.  The storm water collection vault was left empty without any liquid volume.  Total number of gallons recovered were 120 gallons.	We relied upon the meter used by the vendor, Central State Sanitation.	Other (specify below); Pump Station Failure - Mechanical	Software failure-the high alarm notification did not call out to the operator on standby.	Pump Station - Controls																																									
2	2SSO10129	Active	East Palo Alto Sanitary Dist. CS	East Palo Alto Sanitary District	893413	1.2	Draft Submitted			12-FEB-24			Category 1 Spill	Demeter st	02/09/2024 08:25	02/09/2024 12:32	02/09/2024 12:09	02/09/2024 12:54	-		the spill was on Demeter st  see attachment	37.47452	-122.1342	Combined Sewer Drain Inlet. (Combined Collection System Only); Manhole			1000	see attachment	Y	see attachments	800	50	see attachment	1000	800																																																											
1	1SSO11419	Active	Humboldt CSD CS	Humboldt CSD	898300	1.0	Work In Progress						Category 1 Spill	Hoover, Park, and North Street	12/29/2024 05:00	12/29/2024 05:00	12/29/2024 05:00	12/29/2024 08:30	24-7221		Additional spill points near 3383 Park Lat: 40.795134 and Long: -124.128135 and 2820 North Street Lat: 40.800912 Long: -124.135441	40.800932	-124.137264	Manhole		Additional spill points near 3383 Park Lat: 40.795134 and Long: -124.128135 and 2820 North Street Lat: 40.800912 Long: -124.135441 identified at manhole	21750	Hoover 1-4: Details pictures of recovery efforts and spill containment efforts North Street 1: Picture of sewer spilling from manhole Park Street1-2: Picture of sewer spilling from manhole	Y	Park Street D.I.	0	750	Hoover Station North Street	2550	18450																																																											
1	1SSO10018	Active	Willits City CS	Willits City	891553	1.1	Draft Submitted			17-DEC-23			Category 1 Spill	378 North St 	12/04/2023 13:32	12/04/2023 13:38	12/04/2023 13:00	12/04/2023 14:30	23-7446		Private Sewer Lateral Backed-up, spill out of cleanout, ran down the street into Storm Drain	39	123	Lateral Clean Out (Private)		Private Sewer Lateral Backed-up, spill out of cleanout, ran down the street into Storm Drain	35	Private Sewer Lateral Backed-up, spill out of cleanout, ran down the street into Storm Drain	N				Private Sewer Lateral Backed-up, spill out of cleanout, ran down the street into Storm Drain	33	2																																																											
2	2SSO10096	Active	Berkeley City Public Works CS	Berkeley City of Public Works	900495	1.0	Work In Progress						Category 1 Spill	intersection NAPA/ALAMEDA NE/CORNER	03/25/2025 12:25	03/25/2025 12:37	03/25/2025 12:15				North Est corner of 1147 Alameda  and 1900Napa Ave. Berkeley ca	37.88619	-122.27528		Gravity sidewalk mainline	Apparently a PG&E incident, an electric pole support drive in to the main line. Making a hole in the pipe and the spill occurred .	90		Y		70	20		90	70																																																											
5S	5SSO10984	Active	Lake Wildwood CS	Nevada CSD No 1	897421	1.2	Draft Submitted			09-NOV-24			Category 1 Spill	19083 Lake Forest Drive	11/08/2024 17:18	11/08/2024 17:50	11/08/2024 17:18	11/09/2024 00:30	24-6314		The spill was located in a greenbelt area behind houses. The appearance point was out of our manhole.	39.22411	-121.20378	Manhole			843	The spill was located in a greenbelt area behind houses. The spill came out onto the ground and reached a seasonal creek that wasn't flowing at the time. We were able to contain the spill and stop it using out jetter easement machine. Clean up efforts consisted of using out vactor to suck up standing water, pine needles, and debris. We disinfected the area as well as laid straw down and waddles.	Y	The drainage conveyance system was a seasonal creek that was dry.	250	0	There was not discharge to surface water, the creek is seasonal and dry.	0	0																																																											
5S	5SSO10000	Active	Demo South CS	State Water Resources Control Board	895203	1.0	Work In Progress						Category 1 Spill	TEST	06/10/2024 11:22	06/10/2024 11:22	06/10/2024 11:22	06/10/2024 11:22	-		TEST	38.46293	-121.50876	Backflow Prevention Device			1001	test	N				test	1001	0																																																											
1	1SSO10014	Active	Eureka City CS	Eureka City	898399	1.2	Draft Submitted			31-DEC-24			Category 1 Spill	Hemlock and Sequoia Lane	12/27/2024 10:55	12/27/2024 11:15	12/27/2024 10:40				HCSD was notified at 10:55am, arrived on site at 11:15am and then they called the City of Eureka about sewer issues. City crew arrived on site and cleared the blockage at 11:55am. The manhole belongs to HCSD MH#42. Blockage was in City main.	40.77321	-124.14568	Manhole			180	Manhole belongs to HCSD MH#42 and the overflow went into gulch. When City crew arrived on site there was no active SSO,. However, there was a blockage that was cleared, manholes washed down and the mains cleaned after water levels returned to normal.	N				HCSD Manhole #42 at the corner of Hemlock and Sequoia Lane.	0	0																																																											
9	9SSO10676	Active	Meadowlark CS	Vallecitos Water District	899718	1.0	Work In Progress						Category 2 Spill	Laurels Siphon	02/14/2025 07:30	02/14/2025 08:41	02/13/2025 22:11	02/14/2025 10:30	25-0835		Spill occered behind a residential home at the top of a steep unnamed canyon. Spill was from a manhole at the top of a long trasmission siphon.	33.133356	-117.227868	Manhole			1425	see attachments	N		0	0																																																														
2	2SSO10129	Active	East Palo Alto Sanitary Dist. CS	East Palo Alto Sanitary District	892300	1.1	Draft Submitted			24-JAN-24			Category 1 Spill	380 Okeefe	01/19/2024 09:42	01/19/2024 10:53	01/19/2024 10:17		-		none	37.462	-122.14743	Manhole			10	none	N				none	10	7																																																											
9	9SSO10710	Active	USMC Base, Camp Pendleton CS	US Marine Corps Base Camp Pendleton	897189	1.2	Draft Submitted			25-OCT-24			Category 2 Spill	SLS 43832 (TAPS 9) FM BO Cap	10/22/2024 20:30	10/22/2024 21:35	10/22/2024 20:30	10/22/2024 22:00	24-5990		Spill started at SLS 43832 Force Main Blow Off Cap.  Spill drained above the Stuart Mesa paved surface until percolating into the Stuart Mesa Rd dirt shoulder, 2 ft from pavement edge.	33.298198	-117.454579	Other (specify below)	Spill started at SLS 43832 Force Main Blow Off Cap.  Spill drained above the Stuart Mesa paved surface until percolating into the Stuart Mesa Rd dirt shoulder, 2 ft from pavement edge. Spill Endpt : Latitude: 33.298477; Longitude: -117.454464		2000	Spill started at SLS 43832 Force Main Blow Off Cap.  Spill drained above the Stuart Mesa paved surface until percolating into the Stuart Mesa Rd dirt shoulder, 2 ft from pavement edge. Spill Endpt : Latitude: 33.298477; Longitude: -117.454464	N						0																																																											
5F	5SSO11309	Active	Livingston City CS	Livingston City	892011	1.0	Work In Progress						Monthly Category 3 Spill	Walnut and Industial Av. 	12/24/2023 02:05	12/24/2023 02:15	12/24/2023 01:55					37.38948	-120.71034	Manhole		none	300								140													12/24/2023 09:15																																														
4	4SSO10443	Active	Whittier City CS	Whittier City	888974	1.0	Draft Submitted			22-JUN-23			Category 1 Spill	 Manolia Ave and Floral Dr	06/15/2023 13:34	06/15/2023 16:25	06/15/2023 15:45	06/20/2023 07:30	23-3980		Spill location at MH 542	33.99132	-118.05001	Manhole			225	Spill occurred at MH 542 spilling onto the street to a storm drain approximately 25 feet away 	Y	Storm Water Drain	0	225	Sewage water coming out of MH 542 	225	0																																																											
					892180	1.1	Draft Submitted			18-JAN-24			Category 1 Spill	Goleta West Sanitary District Pump Station 1	01/18/2024 10:00	01/18/2024 10:00	01/16/2024 09:30		-		Water bubbled up from ground between Western wall of pump station and concrete Curb. Water staining contained to 3 foot by 18  planter. No water found outside of this space. Potential (unverified) spill point could be 18  asbestos cement force main roughly 4.5 feet below surface of this exact location.	34.42233	-119.85226	Force Main	Found dark water intermittently bubbling from dirt ground surface directly above where force main exits pump station building. 		5	Dug hole where water was bubbling to surface, found cavity partially filled with dark water roughly 18  down. Force main pipe is 4.5 feet below surface. Currently water is contained to 12  x 12  hole with unknown depth. Will begin hydroexcavating and add to report with findings.	N				None	0	5																																																											
8	8SSO11501	Active	Montclair City CS	Montclair City	899958	1.0	Work In Progress						Category 1 Spill	10660 Silicon Avenue	08/10/2023 12:50	08/10/2023 01:18	08/10/2023 12:35				The Monte Vista Water District reported a spill at 10660 Silicon Avenue. Staff responded to this incident and prepared a Sewer Spill/Backup Response Packet after it occurred in August 2023. Please see Attachment A for more detailed information and photographs. 	34.060744	-117.713919	Gravity Mainline; Manhole			36	Please see Attachment A for more detailed information and photographs. 	N	The spill entered into the Chino Basin Water Conservation District percolation basin. 				0	0																																																											
8	8SSO20042	Active	Montclair City CS	Montclair City	899958	1.0	Work In Progress						Category 1 Spill	10660 Silicon Avenue	08/10/2023 12:50	08/10/2023 01:18	08/10/2023 12:35				The Monte Vista Water District reported a spill at 10660 Silicon Avenue. Staff responded to this incident and prepared a Sewer Spill/Backup Response Packet after it occurred in August 2023. Please see Attachment A for more detailed information and photographs. 	34.060744	-117.713919	Gravity Mainline; Manhole			36	Please see Attachment A for more detailed information and photographs. 	N	The spill entered into the Chino Basin Water Conservation District percolation basin. 				0	0																																																											
5S	5SSO10000	Active	Demo South CS	State Water Resources Control Board	888876	1.0	Draft Submitted			16-JUN-23			Category 1 Spill	Elmira Creek	06/15/2023 10:43	06/15/2023 10:43	06/15/2023 10:43	06/15/2023 10:43	231000		jkhkhkhkh	38.70339	-121.86032	Force Main			3000	hjkhjkh	N				jkhkjkjh	2500	500	Drainage Conveyance System		jklkljklkj	Y	38.22166	-121.90427							06/05/2024 10:45	hjkhjhkjh	hkhkhklhl																									g	f	Other (specify below)																	
7	7SSO10538	Active	Salton City Oxid Basin CS	Salton Community Services Dist	895426	1.1	Draft Submitted			26-JUN-24			Category 2 Spill	Force Main	06/24/2024 08:12	06/24/2024 08:30	06/24/2024 06:00	06/24/2024 11:45	24-3584		The break was located at the south west of 2502 Treasure Dr.	33.30959	-115.93477	Force Main			1333	Sewage spill extended to 410 feet  	N						450																																																											
2	2SSO10166	Active	Piedmont City CS	Piedmont City	894186	1.1	Draft Submitted			27-MAR-24			Category 1 Spill	4 Cavanaugh Court	03/22/2024 10:50	03/22/2024 11:40	03/18/2024 09:00	03/22/2024 12:06	24-1721		manhole #31047	37.8138	-122.21811	Manhole			64000	Manhole adjacent to driveway at above address, down the hill into curb and gutter into storm drain catch basin	Y	storm drain	0	64000	storm drain catch basin located at 1800 Trestle Glen Road	64000	0																																																											
5S	5SSO10000	Active	Demo South CS	State Water Resources Control Board	891565	1.0	Work In Progress						Monthly Category 3 Spill	test								38.42163	-121.5527		testtestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestesttesttestest		99													38.55921	-121.46481																																																					
8	8SSO10580	Active	Inland Empire Utilities Agency CS	Inland Empire Utilities Agency	891490	1.0	Work In Progress						Monthly Category 3 Spill	San Bernardino Lift Station	11/07/2023 09:26	11/07/2023 10:17					San Bernardino Lift Station Pump #4	34.0768285	-117.5058979	Pump Station			546	All flow was contained and the standing water recovered. Only water that saturated into the soil was not recovered at the time of the spill. Contaminated soil was removed by 11/15/23.	N																						Debris-Rags; Pump Station Failure - Mechanical																																											
2	2SSO10177	Active	San Carlos City CS	San Carlos City	900840	1.1	Draft Submitted			21-APR-25			Category 1 Spill	2533 Graceland	04/20/2025 21:40	04/20/2025 22:10	04/20/2025 21:23	04/20/2025 23:22	25-2009		Spill came out of pick hole of Manhole in street	37.48821	-122.26693	Manhole			260	The spill ran down and entered into DI which leads to Brittan Creek. The spill also entered Brittan Creek from outfall on opposite side of street. 	Y	Storm drain system and Brittan Creek	0	0	Spill discharges into Brittan Creek	257	3																																																											
4	4SSO10429	Active	Santa Clarita City CS	City of Santa Clarita 	899387	1.0	Work In Progress						Category 1 Spill	1255 (24804 Carbon Lane, Santa Clarita, CA).	01/27/2025 09:30	01/27/2025 10:45	01/18/2025 09:30	01/28/2025 11:40	25-0422		CSMD Map Sheet No. 1255 MMS No. 9206214 	34.45618	-118.57129	Gravity Mainline			5000	A small portion of the sewage went into a storm drain at 24804 Carbon Lane, Santa Clarita, CA. 	Y	A small portion of the sewage went into a storm drain at 24804 Carbon Lane, Santa Clarita, CA. 	0																																																															
2	2SSO10216	Active	West County WW District CS	West County Wastewater District	900929	1.1	Draft Submitted			24-APR-25			Category 1 Spill	5635 B San Pablo Damn RD.	04/22/2025 10:15	04/22/2025 10:30	04/21/2025 08:00	04/22/2025 13:08	25-2044		The spill originated from the cleanout at 5635 B San Pablo Dam Rd.	37.95745	-122.27813	Backflow Prevention Device; Inside Building or Structure; Lateral Clean Out (Private); Other (specify below)	The spill appeared beneath the property.	N/A	240	Photographs were taken of the overflowing cleanout, inside one of the restrooms, and underneath the property.	Y	The spill entered drain that was on the property near the cleanout.	0	240	We were unable to locate the outfall of the drain.	240	0																																																											
9	9SSO10675	Active	Lower Moosa Canyon Recl Facil CS	Valley Center MWD	897106	1.1	Draft Submitted			23-OCT-24			Category 1 Spill	Lawrence Welk 	10/21/2024 08:44	10/21/2024 08:56	10/21/2024 08:30				Manhole back up due to debris and roots in collection line. Line was partially blocked not all flow was restricted. Only surface at one point. Was able to divert flow back into collection system by damming flows into closest manhole downstream. 	33.23248	-117.13873	Manhole			30	Roots in manhole partially blocked collection line creating spill 	Y	Storm drain by curb.	5	5	The flows did not reach surface waters due to small amount of flow that entered storm drain was able to stop flows by using absorbents. 	0	25																																																											
1	1SSO10018	Active	Willits City CS	Willits City	900508	1.0	Work In Progress						Category 1 Spill	E1 manhole	03/19/2025 11:22	03/20/2025 09:00	03/19/2025 11:00	03/27/2025 12:08	25-1565			39.2346	-123.2029	Manhole		N/A	2000		Y	Spill entered season drainage ditch and ran into creek	0	0		2000	0																																																											
5R	5SSO10805	Active	Corning Indust/Domestic CS	Corning City	897756	1.1	Draft Submitted			27-NOV-24			Category 1 Spill	Marguerite Divisadero	11/27/2024 11:40	11/27/2024 11:55	11/27/2024 10:00	11/27/2024 12:50	24-6650		Spill occurred from a clean out in the middle of a field between Marguerite Rd and Divisadero Rd. Received the call at 11:40 am and was on site at 11:55 am. Cleared the blockage using high pressure jet rodder at 12:10 pm. See attached photo for spill point. Area was disinfected with bleach soloution.  	39.9296	-122.16708	Lateral Clean Out (Public)			2000	Spill reached the Blackburn Ditch	Y	Dirt drainage system to storm water system then into the Blackburn Ditch.  2000 gallons mixed with standing storm water in Blackburn Ditch.	0	2000	See attached photos	2000	0																																																											
1	1SSO10086	Active	Yreka City CS	Yreka City	891681	1.1	Draft Submitted			28-DEC-23			Category 1 Spill	Lane Street Manhole	12/22/2023 14:03	12/22/2023 14:10	12/22/2023 09:45		-		Spill was located at manhole just west of Oregon Street on Lane Street	41.73099	-122.63975	Manhole			415	Spill exited manhole, traveled down gutter, entered storm drain inlet on S. Oregon Street, then traveled in storm system down Center Street to Yreka Creek.	Y	Storm system on Center and Oregon Street is 8  but most of run down center street is Large new HDPE drain System 24 +	950	415	Single Discharge point to creek after large hydrodynamic separator	415	0																																																											
5S	5SSO11055	Active	Southeast Regional Waste Disp Fac CS	Lake Cnty	900408	1.0	Work In Progress						Monthly Category 3 Spill	15323 Austin Drive, Clearlake, CA 95422	03/18/2025 08:38	03/18/2025 08:53	03/18/2025 08:38				SSMH overflow located near 15323 Austin Drive in the City of Clearlake.	38.95815	-122.62758	Manhole			100																																																																			
4	4SSO10416	Active	Pasadena City CS	Pasadena City	891199	1.0	Work In Progress						Category 2 Spill	Fair Oaks and Del Mar	11/08/2023 14:00	11/08/2023 14:30	11/08/2023 13:30	11/09/2023 12:00	23-6986		Pasadena Water and Power's hired contractor, Perry Thomas, was performing excavation in the City's right of way when they accidentally hit a sewer main line causing a sewage spill.  City was alerted and provided traffic control and vactor trucks to clean up the spill, but some spilled into the northerly gutter and into the City's MS4 system at the catch basin located at the northwest corner of Raymond Ave and Del Mar Blvd.	34.1405	-118.15032	Force Main	N/A.	N/A.	20000	The spillover entered the northerly gutter and into the City's MS4 system at the catch basin located at the northwest corner of Raymond Ave and Del Mar Blvd.  The extent of the spill did not reach the downstream connection to LA County's MS4 (BI 0583 - Line B).  City crews hydrojetted two areas along the conveyance path at Del Mar Blvd and Arroyo Parkway, and Bellevue Drive and Arroyo Parkway, capturing all presence of spill and the water via vactor truck at southernmost manhole just north of Glenarm Ave. and the Arroyo Parkway.	Y	The drainage conveyance system was entered and contained in the City-owned MS4 system.  No amount of spill extended beyond our system.	20000	0			0	Drainage Conveyance System			Y	34.14051	-118.14891										Damage by Others Not Related to Collection System Construction/Maintenance		Gravity Mainline						N	Cleaned Up (specify below); Contained All or Portion of Spill; Mitigated Effects of Spill (specify below); Returned All Spill to Sanitary Sewer System																																		
9	9SSO10692	Active	San Diego State University CS	CSU San Diego	898680	1.0	Work In Progress						Category 1 Spill	SDSU Campus South Life Science Building Exterior	01/16/2025 08:15	01/15/2025 08:30	01/15/2025 08:30				Location of spill : 32.777374, -117.071716	32.777374	-117.071716	Inside Building or Structure			360		Y	  	0	0		45	315	Building or Structure; Drainage Conveyance System															Root Intrusion		Other (specify below)							Contained All or Portion of Spill			Repaired Facilities or Replaced Defect										Other (specify below)				Other (specify below)																	
7	7SSO10538	Active	Salton City Oxid Basin CS	Salton Community Services Dist	896731	1.1	Draft Submitted			01-OCT-24			Category 2 Spill	Station 16 force main 	09/29/2024 08:00	09/29/2024 08:00	09/29/2024 06:00	09/29/2024 15:18	24-5514		Due to natural shifting of the earth, the joint collar on the ten-inch transite force main pipe broke and cause to spill sewage. 	33.30955	-115.93504	Force Main			1044	The extent of the spill was approximately fifty-two feet by forty feet boundaries.	N						400																																																											
1	1SSO10014	Active	Eureka City CS	Eureka City	898472	1.3	Draft Submitted			06-JAN-25			Category 1 Spill	Harris and Prospect	01/03/2025 09:45	01/03/2025 10:00	01/03/2025 09:30	01/03/2025 11:30	25-0023		Manhole at Harris and Prospect	40.78051	-124.17895	Lower Lateral (Private); Manhole; Upper Lateral (Private)			28500	Appearance points, Harris and Prospect manhole, 3110 Prospect upper lateral, 3104 Prospect upper lateral, 3110 Central	Y	Storm drain to marsh at Broadway and Henderson	0	0	One discharge point at Broadway and Henderson	8000	20502																																																											
5F	5SSO10713	Active	Tulare CS	Tulare City	895669	1.1	Draft Submitted			16-JUL-24			Category 2 Spill	Kraft liftstation	07/16/2024 06:15	07/16/2024 06:30	07/16/2024 05:30	07/16/2024 11:24	-		loss in control power resulted in a brief liftstation failure.  The issue was resolved quickly after notification.  	36.13064	-119.32608	Manhole			2000	The water spilled out of the manhole and pooled up in the lawn that surrounds it.	N						1000																																																											
3	3SSO10236	Active	California Men Colony CS	Ca Dept of Corrections San Luis Obispo	896801	1.2	Draft Submitted			04-OCT-24			Category 1 Spill	CMC, Wastewater Treatment Plant	09/24/2024 10:22	09/24/2024 07:00	09/24/2024 00:25	09/24/2024 13:54	24-5406	04-OCT-24	see attachments	35.32476	-120.7526	Other (specify below)	Old Plant Infrastructure.		800	Leakage onto old plant grounds. Spill containment was created with dirt berm and storm drain covers. This is based on the best of my abilities to report.	Y	Storm Drain.	0	0	Discharges into the surface water include two storm drains:  one by the Connex and the other by the north section of the old plant.	800	0																																																											
7	7SSO10538	Active	Salton City Oxid Basin CS	Salton Community Services Dist	897751	1.2	Draft Submitted			27-NOV-24			Category 2 Spill	2816 Pacific St Salton City	11/26/2024 06:00	11/26/2024 06:00	11/26/2024 05:00	11/26/2024 15:20	24-6635		A section of a manhole collapse due to deterioration, dirt enter manhole and the down streem line got blocked making sewage flow to rise above ground.	33.33232	-115.95452	Manhole			2500	Spill reach approximate 300 feet away from manhole 	N						200																																																											
7	7SSO10538	Active	Salton City Oxid Basin CS	Salton Community Services Dist	895309	1.1	Draft Submitted			18-JUN-24			Category 1 Spill	Station #16	06/16/2024 00:05	06/16/2024 12:15	06/15/2024 21:00	06/16/2024 08:00	24-3427		Station 16 mechanical failure, manhole outside station spilled. 	33.30962	-115.93342	Manhole			5553	Spill extended to 1,500 feet from appearance point	N				spill was lead to a washout see attachment	300	100																																																											
2	2SSO10095	Active	Benicia City CS	Benicia City	899682	1.1	Draft Submitted			12-FEB-25			Category 1 Spill	3840 Industrial Way	02/12/2025 09:56	02/12/2025 10:12	02/12/2025 09:21	02/12/2025 14:27	25-0781		Point of spill originated out of private lateral in the center of the driveway for address 3840 Industrial Way	38.06786	-122.12273	Lower Lateral (Private)			1200	Majority of spill was contained in AB rock driveway by the curb and gutter. Pooled up in the driveway with estimated 250 gallons coming over the curb and into a storm drain.	Y	Storm drain inlet with 12  outlet pipe to Sulpur Springs Creek	0	0	Storm Drain inlet	250	950																																																											
4	4SSO11388	Active	County Sanitation District Joint Outfall CS	Los Angeles Cnty Sanitation Districts	900967	1.1	Draft Submitted			28-APR-25			Category 1 Spill	Joint Outfall  B  � Unit 6G Manhole (MH) B 0490 (Joint Outfall System)	04/23/2025 13:29	04/23/2025 13:29	04/23/2025 13:29	04/23/2025 15:50	25-2070		The spill originated from LACSD�s Joint Outfall B - Unit 6G at MH B 0490, located at 34.073512� N, -118.108319� W, approximately 47 feet north of the intersection of South New Avenue and West Saxon Avenue.	34.073512	-118.108319	Manhole			100	The spill from LACSD MH B 0490 extended approximately 50 feet west and 20 feet south from the manhole, with an approximate maximum width of 19 feet along the on-ramp to the westbound I-10 Freeway.  The spill traveled on the street surface before entering a stormwater catch basin at the northern curb of the I-10 Freeway on-ramp.	Y	The spill from LACSD manhole B 0490 entered a stormwater catch basin and traveled approximately 3,800 feet in the drainage conveyance system until reaching the Alhambra Wash.  	100	0	The spill from LACSD manhole B 0490 entered Alhambra Wash from a storm drain outlet located at approximate coordinates 34.072084� N, -118.096787� W.  	100	100																																																											
5F	5SSO10763	Active	Tehachapi Correctional Inst CS	Ca Dept of Corrections & Rehabilitation	893789	1.1	Draft Submitted			01-MAR-24			Category 2 Spill	Facility B	02/21/2024 10:00	02/21/2024 08:15	02/21/2024 07:45	02/21/2024 13:00	24-1093		The single coordinate for where the spill originated is as follows: 35.06'33 N 118.33'59 W	35.07761	-118.43968	Inside Building or Structure	N/A	N/A	62832	The spill originated in the canteen room at Facility B. The flow left the building and onto the asphalt and into the storm drain. From there it flowed into  no mans land  (the dirt area between the Electrified Fence and the building). Here is where the end flow was captured and remained until using a 6  pump on Feb. 22, 2024, the contained water was reintroduced back into the sewer system through the nearest manhole. 	N	N/A	0	0			60000																																																											
4	4SSO10416	Active	Pasadena City CS	Pasadena City	897721	1.2	Draft Submitted			26-NOV-24			Category 1 Spill	90 N Fair Oaks Ave. Pasadena, Ca	11/25/2024 14:20	11/25/2024 14:45	11/25/2024 14:10				Spill was inside a building under a kitchen dish washer sink onto sidewalk and frontage of their building.   	34.14743	-118.15031	Inside Building or Structure; Lateral Clean Out (Private); Other (specify below)	Drain under restaurant kitchen dish washer sink.  	None	25	The spill came from inside the building kitchen sink and out to the sidewalk and the frontage of their property.	N	Storm drain located at the corner of Colorado Bl and Fair Oaks on the west side of the street.	0	0	None got onto surface water. 	0	0																																																											
8	8SSO10585	Active	Lake Hemet MWD CS	Lake Hemet Municipal Water District	898405	1.1	Draft Submitted			02-JAN-25			Category 1 Spill	El Nita and San Jacinto Avenue	12/23/2024 15:28	12/23/2024 15:30	12/23/2024 15:28				Sticks inserted into drop manhole by vandals initiated clog in manhole. backing up into private lateral.	33.74629	-116.958579	Lateral Clean Out (Private)			92	Spill entered curb and gutter than flowing into underground piped drainage system	Y	Piped storm drain under SR 74 that likely discharges at southwest of State/Inez into concrete lined channel one mile from spill.  3-mile long concrete channel drains into earthen channel near Stetson/Waldon Weaver Road.	0	92	Discharge point are unknown except other than miles from spill..	0	0																																																											
3	3SSO10272	Active	Greenfield, City Of CS	Greenfield City	897213	1.0	Work In Progress						Category 2 Spill	WWTP RIB #10	10/26/2024 10:33	10/26/2024 10:32	10/26/2024 10:30	10/26/2024 11:55	24-6049			36.342462	-121.214224	Other (specify below)	Wastewater Treatment Plan RIB #10 southern levee breach, discharging onto private property:  Sod Farm		466662		N						0																																																											
2	2SSO11430	Active	Port of Oakland CS	Port of Oakland	891410	1.0	Work In Progress						Category 1 Spill	Scott's Seafood Grill & Bar	12/01/2023 09:00	12/01/2023 09:00	12/01/2023 09:00		-		During unrelated construction project on the Boardwalk Port staff discovered a leaking sanitary sewer pipe located directly above estuary waters of the Bay. Leak appears to be minimal, and the time when the leak began is unknown. 	37.79401	-122.27724	Lower Lateral (Private)			1	Sanitary pipe has been leaking directly into estuary waters of the Bay. Pipe that is leaking is suspended above the waters.	N				Sanitary pipe has been leaking directly into estuary waters of the Bay. Pipe that is leaking is suspended above the waters.	1	0																																																											
7	7SSO10538	Active	Salton City Oxid Basin CS	Salton Community Services Dist	897786	1.1	Draft Submitted			03-DEC-24			Category 2 Spill	2800 Pacific St Salton City	12/01/2024 10:25	12/01/2024 10:25	11/30/2024 12:32	12/01/2024 13:22	24-6699		A temporary above ground bypass hose was detached. High flow possible and sewage surging in hose mad clamps failed. 	33.33151	-115.95446	Other (specify below)	Above bypass hose that discharge into manhole		2500	sewage spilled approximate 270 feet on soil	N						0																																																											
7	7SSO10538	Active	Salton City Oxid Basin CS	Salton Community Services Dist	894547	1.1	Draft Submitted			25-APR-24			Category 2 Spill	North East corner manhole of 2850 Pacific St. and South East of 2844 Pacific St.	04/23/2024 06:36	04/23/2024 06:40	04/23/2024 04:55	04/23/2024 13:22	24-2385		Spill started at manhole located north east corner of 2850 Pasific St. and manhole located south east corner of 2844 Pacific St.	33.33505	-115.95476	Manhole		33.33430 decimal degree -115.95471 decimal degree Manhole	1000	The total cubic square feet of sewer on soil was approximate 132. which gives us aproximate 990 gallons of sewer. 	N						475																																																											
6B	6SSO11137	Active	City Of Palmdale CS	Palmdale City	890698	1.0	Work In Progress						Category 2 Spill	Delacour St					-		NANA	34.57624	-118.12764	Manhole	NANA	NANA	3420	NA							3400																																																											
3	3SSO10330	Active	Santa Ynez C.S.D. CS	Santa Ynez CSD	893778	1.0	Work In Progress						Category 1 Spill	Chumash Casino & Resort	12/26/2023 22:30	12/26/2023 22:45	02/26/2024 22:20		-		At 10:30PM, December 26, 2023, the SYCSD was notified by Chumash Casino & Resort staff that a wastewater spill was in progress at the Chumash Casino & Resort's Creekwalk pump station.  This pump station is located on the North side of the Sanja Cota Creek, where the creek goes underneath the Casino.  Approximately 50 gallons of untreated raw wastewater flowed into the dry creek bed.  SYCSD staff arrived at 10:45PM and stopped the spill.  The pump staion area, the employee walkway was disinfected with two gallons of bleach, and washed off.  There was no damage to any persons, property of structures (see pictures).	34.60907	-120.0865	Pump Station		None	50	The spill occurred from the pump station's wet -well, spilling out from the wet well's manhole cover.  The spill flowed onto the employee walkway and covered an area three feet wide and flowed about 1/4  in depth.  From here the wastewater spilled onto the dirt embankment of the Sanja Cota Creek and down into the dry creek bed (see pictures).	N	None	0	0	The spill occurred from the pump station's wet -well, spilling out from the wet well's manhole cover.  The spill flowed onto the employee walkway and covered an area three feet wide and flowed about 1/4  in depth.  From here the wastewater spilled onto the dirt embankment of the Sanja Cota Creek and down into the dry creek bed (see pictures).	50	0																																																											
3	3SSO10330	Historical	Santa Ynez C.S.D. CS	Santa Ynez CSD	893778	1.0	Work In Progress						Category 1 Spill	Chumash Casino & Resort	12/26/2023 22:30	12/26/2023 22:45	02/26/2024 22:20		-		At 10:30PM, December 26, 2023, the SYCSD was notified by Chumash Casino & Resort staff that a wastewater spill was in progress at the Chumash Casino & Resort's Creekwalk pump station.  This pump station is located on the North side of the Sanja Cota Creek, where the creek goes underneath the Casino.  Approximately 50 gallons of untreated raw wastewater flowed into the dry creek bed.  SYCSD staff arrived at 10:45PM and stopped the spill.  The pump staion area, the employee walkway was disinfected with two gallons of bleach, and washed off.  There was no damage to any persons, property of structures (see pictures).	34.60907	-120.0865	Pump Station		None	50	The spill occurred from the pump station's wet -well, spilling out from the wet well's manhole cover.  The spill flowed onto the employee walkway and covered an area three feet wide and flowed about 1/4  in depth.  From here the wastewater spilled onto the dirt embankment of the Sanja Cota Creek and down into the dry creek bed (see pictures).	N	None	0	0	The spill occurred from the pump station's wet -well, spilling out from the wet well's manhole cover.  The spill flowed onto the employee walkway and covered an area three feet wide and flowed about 1/4  in depth.  From here the wastewater spilled onto the dirt embankment of the Sanja Cota Creek and down into the dry creek bed (see pictures).	50	0																																																											
3	3SSO20011	Active	Santa Ynez C.S.D. CS	Santa Ynez CSD	893778	1.0	Work In Progress						Category 1 Spill	Chumash Casino & Resort	12/26/2023 22:30	12/26/2023 22:45	02/26/2024 22:20		-		At 10:30PM, December 26, 2023, the SYCSD was notified by Chumash Casino & Resort staff that a wastewater spill was in progress at the Chumash Casino & Resort's Creekwalk pump station.  This pump station is located on the North side of the Sanja Cota Creek, where the creek goes underneath the Casino.  Approximately 50 gallons of untreated raw wastewater flowed into the dry creek bed.  SYCSD staff arrived at 10:45PM and stopped the spill.  The pump staion area, the employee walkway was disinfected with two gallons of bleach, and washed off.  There was no damage to any persons, property of structures (see pictures).	34.60907	-120.0865	Pump Station		None	50	The spill occurred from the pump station's wet -well, spilling out from the wet well's manhole cover.  The spill flowed onto the employee walkway and covered an area three feet wide and flowed about 1/4  in depth.  From here the wastewater spilled onto the dirt embankment of the Sanja Cota Creek and down into the dry creek bed (see pictures).	N	None	0	0	The spill occurred from the pump station's wet -well, spilling out from the wet well's manhole cover.  The spill flowed onto the employee walkway and covered an area three feet wide and flowed about 1/4  in depth.  From here the wastewater spilled onto the dirt embankment of the Sanja Cota Creek and down into the dry creek bed (see pictures).	50	0																																																											
2	2SSO10135	Active	Foster City CS	Foster City PWD	898034	1.0	Work In Progress						Category 1 Spill	Pump Station #59 100 Lincoln Centre Dr. Foster City, CA.	12/13/2024 08:25	12/13/2024 08:15	12/13/2024 08:25	12/13/2024 10:20	24-6946		Pump Station #59 at Foster City Corporation Yard.  100 Lincoln Centre DR.  Foster City , CA 94404 	37.57053	-122.27004	Pump Station			2500	Pump station #59 overflowed because of electrical issue. Wastewater flowed to the near by Storm drain and to the Lagoon. The lagoon pumps were pumping because it was raining so the wastewater was pumped to the Bay	Y	All storm drains flow to the Lagoon system. and then pumped to the Bay	0	0	Wastewater flowed to the near by Storm drain and to the Lagoon. The lagoon pumps were pumping because it was raining so the wastewater was pumped to the Bay	2500	0																																																											
4	4SSO10443	Active	Whittier City CS	Whittier City	900897	1.1	Draft Submitted			23-APR-25			Category 1 Spill	8218 Painter Aver	04/19/2025 19:03	04/19/2025 20:00	04/19/2025 18:50				Overflow from MH 1411 onto the street down gutter to the storm drain. The spill had only one appearance point. 	33.96447	-118.0323	Gravity Mainline; Manhole			850	Spill point was from MH 1411 spilling onto the street then into storm drain. 	Y	spill onto the curb and into the storm drain. 	0	850	None	0	0																																																											
5F	5SSO10713	Active	Tulare CS	Tulare City	900709	1.1	Draft Submitted			11-APR-25			Category 2 Spill	Kraft liftstation	04/10/2025 09:15	04/10/2025 09:30	04/10/2025 10:15	04/11/2025 08:25			Front lawn at Kraft	36.13017	-119.32577	Manhole			1000	spill was contained in the low line area around the manhole	N						1000																																																											
1	1SSO10014	Active	Eureka City CS	Eureka City	898367	1.2	Draft Submitted			31-DEC-24			Category 1 Spill	Harris and Elizabeth, 636 W. Harris	12/29/2024 08:15	12/29/2024 08:40	12/29/2024 08:00	12/29/2024 11:45	24-7225		Manhole near on Harris west of Elizabeth Street. Cleanout at 3111 Central Avenue on Harris Street.	40.78051	-124.17767	Gravity Mainline; Lateral Clean Out (Private)			2000	2000 gallon SSO, 1175 Gallons Recovered, 875 was not recovered.	Y	Storm drain to marsh	0	0	One discharge point for storm drain west of Broadway and Henderson.	875	1125																																																											
5S	5SSO11037	Active	Rio Vista Waste Trt Facility CS	Rio Vista City	900177	1.2	Draft Submitted			07-MAR-25			Category 1 Spill	HWY12 and Virginia Dr Rio Vista, Ca.	03/04/2025 12:04	03/04/2025 12:05	03/04/2025 12:05	03/07/2025 11:10	25-1159		Sewer main appears to have a crack in the bottom of the pipe, pipeline runs through storm drain manhole	38.161	-121.69071	Gravity Mainline	NA	NA	100	crack in pipeline	Y	storm drain pipeline	50	0	outfall pipeline to Sacramento  river	0	0																																																											
5F	5SSO11295	Active	Fresno Co 31B-Shaver Lake CS	County of Fresno	895049	1.0	Work In Progress						Monthly Category 3 Spill	40809 Mill Run Lane, Shaver Lake, Ca 93664	05/25/2024 19:50	05/25/2024 21:30	05/25/2024 19:50				Restricted line clogged in lateral. Manhole was backed up. Unknown responsible party.	37.0892	-119.31451	Manhole			75	Spill restricted to dirt and small part of street. 	N						0	Paved Surface; Unpaved Surface		Roadway and side of road.	Y									05/26/2024 12:00	Visual estimate.	Field staff assessment.	Debris from Lateral		Manhole				49	Small runoff absorbed by ground.	N	Contained All or Portion of Spill		Contractor cleared restriction. Spillage was minimal and was absorbed by ground.	Other (specify below)	Scheduling regular maintenance.	Scheduling regular maintenance.																				N/A	N/A	N/A